1. A water sampler in public places is characterized by comprising:

the device comprises a sampling module (1), a handheld part (2), a stabilizer module (3), a communication module (4), a storage module (5) and an underwater module (6);

the handheld part (2) is fixedly arranged at one end of the sampling module (1), the other end of the handheld part is provided with a box cover (14), the box cover is hinged with the sampling module (1), the communication module (4) is fixedly connected to the bottom of the sampling module (1), the storage module (5) is arranged at the bottom of the communication module (4), and the stabilizer module (3) is fixedly connected to the communication module (4);

the sampling module (1) comprises a display screen (11), an exhaust port (12), a charging port (13), a box cover (14), an air pump (15), a battery pack (16), a control center (17), a sampling rod (18) and a sampling rod driving motor (19), the display screen (11) is fixedly connected to the surface of the sampling module (1), the exhaust port (12) and the charging port (13) penetrate through the side wall of the sampling module (1) and are respectively communicated with the air pump (15) and the battery pack (16), and the underwater module (6) is arranged at the end part of the sampling rod (18);

air suction pump (15) group battery (16) control center (17) sampling pole (18) with sampling pole driving motor (19) are located in sampling module (1), control center (17) respectively with module (6) under water display screen (11), air suction pump (15) and sampling pole driving motor (19) signal intercommunication, group battery (16) respectively with module (6) under water control center (17) sampling pole driving motor (19) circuit intercommunication, sampling pole (18) with sampling pole driving motor (19) transmission is connected.

2. The water sampler for public places according to claim 1, wherein the sampling rod (18) comprises a first telescopic rod (181), a second telescopic rod (182), a third telescopic rod (183), a hose buckle (184), a coil box (185), a pulling wire (186), a servo motor (187) and a change-over switch (188);

the first telescopic rod (181), the second telescopic rod (182) and the third telescopic rod (183) are sequentially connected in a sliding manner, the first telescopic rod, the second telescopic rod and the third telescopic rod are in transmission connection with the sampling rod driving motor (19), and the hose buckle (184) is fixedly arranged on the side faces of the first telescopic rod, the second telescopic rod and the third telescopic rod;

the coil box (185) is fixedly arranged at the end part of the first telescopic rod (181), a rotating shaft is arranged in the coil box, one end of the lifting wire (186) is fixed on the rotating shaft, and the other end of the lifting wire is fixedly connected to the underwater module (6);

the servo motor (187) is fixedly connected to the coil box (185), connected with the rotating shaft and in signal communication with the control center (17), the servo motor (187) and the sampling rod driving motor (19) are arranged in parallel and are both connected with the battery pack (16) in series, and the change-over switch (188) is used for switching on and off of the battery pack (16) and a series circuit of the battery pack and the battery pack.

3. A public place water quality sampler according to claim 2, wherein the hand-held part (2) comprises a roller switch (21), an air pump switch (22) and first anti-skid veins (23), the roller switch (21) and the air pump switch (22) are arranged at the top of the hand-held part (2), the roller switch (21) is respectively connected with the sampling rod driving motor (19) and the servo motor (187) in series, the air pump switch (21) is connected with the air suction pump (15) in series, and the first anti-skid veins (23) are arranged on the surface of the hand-held part (2).

4. A public place water quality sampler according to claim 2, wherein the communication module (4) comprises a second antiskid thread (41), a stabilizer spray pipe (42), a pumping pipe (43), a pumping pipe (44) and a hose (47);

the second anti-skid grains (41) are arranged on the surface of the communication module (4), the stabilizer spray pipe (42) penetrates through the side wall of the communication module (4), one end of the stabilizer spray pipe is communicated with the stabilizer module (3), and the other end of the stabilizer spray pipe is communicated with the storage module (5);

the water pumping pipe (43) and the air pumping pipe (44) are arranged in a communication module, one end of the water pumping pipe (43) is communicated with the water pumping pipe (43), the other end of the water pumping pipe is communicated with the storage module (5), one end of the air pumping pipe (44) is communicated with the air pump (15) after penetrating through the bottom of the sampling module (1), and the other end of the air pumping pipe is communicated with the storage module (5);

hose (47) with hose is detained (184) contact connection, one end with drinking-water pipe (43) intercommunication, the other end is located module (6) under water.

5. A public space water sampler as claimed in claim 4 wherein the storage module (5) comprises a sealing membrane (51), a sampling bottle (52) and a bottle sleeve (53);

the bottle sleeve (53) is sleeved on the surface of a sampling bottle (52), the sealing film (51) is covered on the opening of the sampling bottle (52), and the stabilizing agent spray pipe (42) and the air exhaust pipe (44) are respectively in contact connection with the sealing film (51);

the water pumping pipe (43) and the sealing film (51) are of an integrated structure.

6. A public place water quality sampler according to claim 5, characterized in that the communication module (4) comprises an annular groove (45) and a relief groove (46), and the bottle sleeve (53) comprises a slide block (531) and a second liquid level groove (532);

the sliding block (531) is arranged at the top of the bottle sleeve (53), the annular groove (45) is arranged on the inner surface of the communication module (4), the sliding block (531) is in sliding connection with the annular groove (45), the abdicating groove (46) is arranged on the side wall of the communication module (4) in a penetrating manner, and the abdicating effect for the water pumping pipe (43) is achieved when the storage module (5) is assembled;

the second liquid level groove (532) penetrates through the side wall of the bottle sleeve (53).

7. A public place water quality sampler according to claim 4, characterized in that the stabilizer module (3) comprises a gas cylinder (31), a stabilizer box (32), a gas valve (33), a first liquid level tank (34) and a fixing box (35);

the fixed box (35) is fixedly connected to the surface of the communication module (4), and the first liquid level groove (34) is arranged on the first liquid level groove (34) in a penetrating manner;

the stabilizer box (32) is in contact connection with the fixed box (35) and communicated with the stabilizer spray pipe (42), the air valve (33) penetrates through the fixed box (35), one end of the air valve is communicated with the stabilizer box (32), and the other end of the air valve is communicated with the air bottle (31).

8. A public space water sampler as claimed in claim 4 wherein the underwater module (6) comprises a hose clamp (61), a pull ring (62) and an electrochemical analyser (63);

the hose clamp (61) is arranged on the surface of the underwater module (6) and is in contact connection with the hose (47), the pull ring (62) is fixedly connected to the center of the underwater module (6), and the pull line (186) is fixedly connected to the pull ring (62);

the electrochemical analyzer (63) is fixedly mounted to the subsea module (6), in circuit communication with the battery pack (16), and in signal communication with the control center (17).

9. A public place water quality sampler according to claim 4, characterized in that the stabilizer nozzle (42) comprises a nozzle (421), the nozzle (421) is communicated with the bottom of the stabilizer nozzle (42) and is used for atomizing the stabilizer;

the exhaust tube (44) comprises a buffer tube (441), and the buffer tube (441) is communicated with the exhaust tube (44) and is positioned in the communication module (4).

Background

During the detection of environmental sanitation water, sterile sampling operation is often required to be carried out on various water bodies to ensure the accuracy of the result of the sample, for example, the sampling of new coronavirus water bodies in hospital sewage during a new corona epidemic situation; sampling various industrial factory and mine sewage microorganisms; sampling legionella pneumophila of a cooling tower of a centralized air conditioner; the sampling of swimming pool water, because these water pollution degree are different, and the environmental condition is different, hardly guarantee aseptic operation in the actual sampling, still have the health hazard risk to the sampling personnel. In addition, the environmental sanitation water body collection process often has the requirements of water depth and multi-point sampling, for example, hospital sewage is often carried out in a sewage well, and a plurality of samples are collected at the position which is more than 15cm away from the well wall; in the swimming pool sampling, a plurality of detection points are set according to the actual area, wherein the detection points are distributed in the center when the detection point is 1 point, are distributed in the centrosymmetry when the detection point is 2 points, and are distributed in equal parts by using the diagonal line of 3 points when the detection point is 3 points; when the cooling tower water is sampled, a sampling person enters the tower to collect water samples which are 15cm away from the tower wall and 10cm below the liquid level. The various places often cannot meet the specified requirements only by manual sampling due to different conditions, and the physical health of sampling personnel is extremely easy to threaten due to the complexity of field operation. Finally, on-site sampling of water often requires collection of condition parameters such as water depth, water temperature, turbidity, conductivity, pH value, free residual chlorine and the like during water sampling, so it is necessary to develop a water quality sampler which can be applied to various scenes and ensure aseptic sampling standards.

The prior art has the following disadvantages: (1) when sampling, a telescopic rod needs to be extended to a designated area by manpower to sample, and the sampling distance, depth and other specifications are difficult to guarantee during multipoint sampling, so that errors are easy to generate; (2) the existing detection sampling equipment needs to take out water and pour the water into an analysis bottle for analysis one by one, is time-consuming and labor-consuming, cannot obtain field parameters in time, and is easy to cause secondary pollution to collected samples; (3) the stabilizer is added and distributed unevenly by injection, and the sampling bottle mouth is easy to be exposed in the air and easy to be polluted.

Disclosure of Invention

Aiming at the defects or the improvement requirements of the prior art, the invention provides a water quality sampler in a public place, which adopts a telescopic sampling rod and a servo motor positioned at the end part of the telescopic sampling rod, the telescopic sampling rod and the servo motor are controlled to zoom through a roller switch, and the extension length and the lowering depth of a pull-up wire of the telescopic sampling rod and the servo motor can be observed through a display screen, so that the accuracy of multipoint sampling is ensured, the difficulty of remote sampling of operators and the health threat of the sampling environment to the operators are reduced, the infection of the operating errors of the operators to the sampling result is reduced, and the problems that the operators are difficult to sample strictly according to the specifications and the health is easily damaged under different environments are solved.

In order to achieve the above object, according to the present invention, there is provided a water quality sampler for public use, comprising:

the device comprises a sampling module, a handheld part, a stabilizer module, a communication module, a storage module and an underwater module;

the handheld part is fixedly arranged at one end of the sampling module, the other end of the handheld part is provided with a box cover, the box cover is hinged with the sampling module, the communication module is fixedly connected to the bottom of the sampling module, the storage module is arranged at the bottom of the communication module, and the stabilizer module is fixedly connected to the communication module;

the sampling module comprises a display screen, an exhaust port, a charging port, a box cover, an air pump, a battery pack, a control center, a sampling rod and a sampling rod driving motor, wherein the display screen is fixedly connected to the surface of the sampling module;

the aspiration pump the group battery control center the sampling pole with sampling pole driving motor locates in the sampling module, control center respectively with the module under water display screen, aspiration pump and sampling pole driving motor signal intercommunication, the group battery respectively with the module under water control center the sampling pole driving motor circuit intercommunication, the sampling pole with the transmission of sampling pole driving motor is connected.

Furthermore, the sampling rod comprises a first telescopic rod, a second telescopic rod, a third telescopic rod, a hose buckle, a coil box, a lifting wire, a servo motor and a change-over switch;

the first telescopic rod, the second telescopic rod and the third telescopic rod are sequentially connected in a sliding manner, the first telescopic rod, the second telescopic rod and the third telescopic rod are in transmission connection with the sampling rod driving motor, and the hose buckle is fixedly mounted on the side faces of the first telescopic rod, the second telescopic rod and the third telescopic rod;

the coil box is fixedly arranged at the end part of the first telescopic rod, a rotating shaft is arranged in the coil box, one end of the lifting wire is fixed on the rotating shaft, and the other end of the lifting wire is fixedly connected to the underwater module;

the servo motor is fixedly connected to the coil box, connected with the rotating shaft and communicated with the control center through signals, the servo motor and the sampling rod driving motor are arranged in parallel and connected with the battery pack in series, and the change-over switch is used for switching on and off of the battery pack and a circuit formed by connecting the battery pack and the battery pack in series.

Further, handheld portion includes gyro wheel switch, air pump switch and first anti-skidding line, the gyro wheel switch with the air pump switch is located the top of handheld portion, the gyro wheel switch respectively with sampling pole driving motor and servo motor establish ties, the air pump switch with the aspiration pump is established ties, first anti-skidding line is located handheld portion surface.

Further, the communication module comprises second anti-skid grains, a stabilizer spray pipe, a water pumping pipe, an air pumping pipe and a hose;

the second anti-skid grains are arranged on the surface of the communicating module, the stabilizer spray pipe penetrates through the side wall of the communicating module, one end of the stabilizer spray pipe is communicated with the stabilizer module, and the other end of the stabilizer spray pipe is communicated with the storage module;

the water pumping pipe and the exhaust pipe are arranged in a communication module, one end of the water pumping pipe is communicated with the water pumping pipe, the other end of the water pumping pipe is communicated with the storage module, one end of the exhaust pipe is communicated with the exhaust pump after penetrating through the bottom of the sampling module, and the other end of the exhaust pipe is communicated with the storage module;

the hose with the hose lock joint is contacted and is connected, one end with the drinking-water pipe intercommunication, the other end is located module under water.

Further, the storage module comprises a sealing film, a sampling bottle and a bottle sleeve;

the bottle sleeve is sleeved on the surface of a sampling bottle, the sealing membrane is covered on the opening of the sampling bottle, and the stabilizing agent spray pipe and the exhaust pipe are respectively in contact connection with the sealing membrane;

the water pumping pipe and the sealing film are of an integrated structure.

Furthermore, the communicating module comprises an annular groove and a yielding groove, and the bottle sleeve comprises a sliding block and a second liquid level groove;

the slide block is arranged at the top of the bottle sleeve, the annular groove is arranged on the inner surface of the communication module, the slide block is connected with the annular groove in a sliding manner, the abdicating groove is arranged on the side wall of the communication module in a penetrating manner, and the abdicating function for the water pumping pipe is realized when the storage module is assembled;

the second liquid level groove penetrates through the side wall of the bottle sleeve.

Further, the stabilizer module comprises a gas cylinder, a stabilizer box, a gas valve, a first liquid level groove and a fixing box;

the fixed box is fixedly connected to the surface of the communicating module, and the first liquid level groove is arranged on the first liquid level groove in a penetrating manner;

the stabilizer box is in contact connection with the fixed box and is communicated with the stabilizer spray pipe, the air valve penetrates through the fixed box, one end of the air valve is communicated with the stabilizer box, and the other end of the air valve is communicated with the air bottle.

Further, the subsea module comprises a hose clamp, a pull ring, and an electrochemical analyzer;

the hose clamp is arranged on the surface of the underwater module and is in contact connection with the hose, the pull ring is fixedly connected to the center of the underwater module, and the pull line is fixedly connected to the pull ring;

the electrochemical analyzer is fixedly arranged on the underwater module, is communicated with the battery pack circuit and is in signal communication with the control center.

Further, the stabilizer spray pipe comprises a nozzle, and the nozzle is communicated with the bottom of the stabilizer spray pipe and is used for atomizing the stabilizer;

the exhaust tube comprises a buffer tube, and the buffer tube is communicated with the exhaust tube and is positioned in the communication module.

In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:

1. the invention provides a water quality sampler in a public place, which adopts a telescopic sampling rod and a servo motor positioned at the end part of the telescopic sampling rod, wherein the telescopic sampling rod and the servo motor are controlled to zoom through a roller switch, and the extension length and the lowering depth of a lifting wire of the telescopic sampling rod and the servo motor can be observed through a display screen, so that the accuracy of multipoint sampling is ensured, the difficulty of remote sampling of operators and the health threat of sampling environment to the operators are reduced, the influence of the operation error of the operators on the sampling result is reduced, and the problems that the operators are difficult to sample strictly according to the standard and the health is easily damaged under different environments are solved.

2. The invention provides a water quality sampler in public places, wherein a bottle sleeve and a sealing film are arranged outside a sampling bottle, the bottle sleeve and the connecting module are only required to be separated from the annular groove connecting part when multiple times of sampling are carried out, the sampling bottle mouth is positioned in the connecting module when sampling, direct sunlight is avoided from irradiating a water sample, the disposable sealing film is arranged at the bottle mouth, and an exhaust tube and a stabilizer spray tube are communicated with the sampling bottle in a puncturing mode, so that the problem of insufficient sealing performance when an air pump pumps air is solved, and meanwhile, the sampling bottle is not polluted by bacteria in the external environment when sampling is ensured.

3. The invention provides a water quality sampler in a public place, which inherits a plurality of components of an air suction pump, a battery pack, a control center, a sampling rod and a sampling rod driving motor in a box-packed sampling module, so that power is provided for the sampler, the module is separated from a communication module and a storage module at the lower part, the service life of the sampler is ensured, and the sampler is not easily polluted by environmental bacteria.

4. The invention provides a water quality sampler in a public place, wherein a stabilizer module is fixedly arranged on the side surface of a communication module, the stabilizer module can provide a pressure source by replacing an air bottle and provide a stabilizer suitable for different water samples by replacing a stabilizer box, the stabilizer is sprayed into a sampling bottle through a nozzle during sampling, the atomized stabilizer is fully mixed with an incoming water sample, the distribution is more uniform, and the water sample is favorably stored.

5. The invention provides a water quality sampler in a public place.A water module is provided with an electrochemical analyzer which is in signal communication with a control center, when the water module is submerged under the water surface for sampling, the electrochemical analyzer can synchronously carry out electrochemical analysis on the water area and send related parameters to the control center, and then the control center displays the parameters to an operator through a display screen, thereby accelerating the working efficiency and enabling the operator to obtain partial parameters of the sample on site.

Drawings

FIG. 1 is a first schematic structural diagram of a water sampler in a public place according to an embodiment of the present invention;

FIG. 2 is a partial enlarged view A of a water sampler in a public place according to an embodiment of the present invention;

FIG. 3 is a side view of a water sampler for public use according to an embodiment of the present invention;

FIG. 4 is a sectional view B-B of a water sampler for public places according to an embodiment of the present invention;

FIG. 5 is a sectional view D-D of a water sampler for public places according to an embodiment of the present invention

FIG. 6 is a schematic structural diagram of a water sampler in a public place according to an embodiment of the present invention;

fig. 7 is a partial enlarged view C of a water sampler for public places according to an embodiment of the present invention.

In all the figures, the same reference numerals denote the same features, in particular: 1-sampling module, 2-handheld part, 3-stabilizer module, 4-communication module, 5-storage module, 6-underwater module, 11-display screen, 12-exhaust port, 13-charging port, 14-box cover, 15-air pump, 16-battery pack, 17-control center, 18-sampling rod, 19-sampling rod driving motor, 21-roller switch, 22-air pump switch, 23-first anti-skidding line, 31-air bottle, 32-stabilizer box, 33-air valve, 34-first liquid level groove, 35-fixing box, 41-second anti-skidding line, 42-stabilizer spray pipe, 43-water pumping pipe, 44-air pumping pipe, 45-annular groove, 46-abdicating groove, 47-hose, water pump, water pump, 51-sealing membrane, 52-sampling bottle, 53-bottle sleeve, 61-hose clamp, 62-pull ring, 63-electrochemical analyzer, 181-first telescopic rod, 182-second telescopic rod, 183-third telescopic rod, 184-hose buckle, 185-coil box, 186-pulling wire, 187-servo motor, 188-change-over switch, 421-nozzle, 431-hose interface, 441-buffer tube, 531-slide block and 532-second liquid level tank.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1-7, the invention provides a water sampler for public places, which comprises a sampling module 1, a handheld part 2, a stabilizer module 3, a communication module 4, a storage module 5 and an underwater module 6, wherein the sampling module 1, the communication module 4 and the storage module 5 are sequentially communicated from top to bottom, an air suction pump 15, a sampling rod 18 and a sampling rod driving motor 19 are arranged in the sampling module 1 and used for providing sampling power and moving a sampling end to a specified area, when a specified water area needs to be sampled, the driving motor 19 can be controlled by a roller switch 21 on the handheld part, the driving motor 19 can drive the sampling rod 18 to extend forwards, the underwater module 6 is lowered to a position below the water surface after reaching the water area, the underwater module 6 is communicated with the storage module 5 through a hose 47, and a water body enters the storage module 5 through the hose 47 in the process of air suction of the air suction pump 15 for sucking the storage module 5 And stabilizer module 3 fixed mounting in the side of intercommunication module 4 can be in step in storage module 5 the atomizing stabilizer of blowout in the sample process, storage module 5 with intercommunication module 4 is detachable structure, when storage module 5 samples to required water yield, can replace it into reserve storage module 5 and continue to sample, and this sampler adopts retractable sampling pole 18, and the staff of being convenient for carries out the quality of water sample to the region that limbs such as swimming pool, water cooling tower are difficult to reach.

Further, as shown in fig. 1-6, the communication module 4 includes a second anti-slip pattern 41, a stabilizer nozzle 42, a water pumping pipe 43, an air pumping pipe 44, an annular groove 45, a relief groove 46, and a hose 47, the communication module 4 is a truncated cone-shaped structure, the interior of the communication module is a cavity, the second anti-slip pattern 41 is disposed on the outer surface of the communication module 4, when the handheld portion 2 of the sampler is held by a hand, the first anti-slip pattern 23 disposed on the surface of the communication module has an anti-slip effect, the other hand can hold the outer surface of the communication module 4, the second anti-slip pattern 41 has an anti-slip effect, so as to keep the sampler stable during sampling, the top of the communication module 4 is fixedly connected to the bottom of the sampling module 1, the stabilizer nozzle 42 is a hard pipe and is disposed through the sidewall of the communication module 4, preferably, the stabilizer nozzle 42 can be inserted into the sidewall of the communication module 4 in an interference fit, so that the stabilizer nozzle 42 can be replaced after replacing the kind of the stabilizer, the stabilizer spray pipe 42 is communicated with the stabilizer module 3 at one end positioned outside, the stabilizer spray pipe is vertically and downwardly arranged in a cavity of the communicating module 4 at the inner end, the bottom of the stabilizer spray pipe is communicated with the nozzle 421, the nozzle 421 is in a sharp shape and is used for spraying the stabilizer and atomizing the stabilizer, the exhaust pipe 44 is a hard pipeline for pumping air, a saccular buffer pipe 441 is communicated with the exhaust pipe to ensure that a water sample in the excessive air-pumping storage module 5 cannot directly enter the exhaust pump 15 to cause a fault short circuit, a buffer space is provided, preferably, the upper end of the exhaust pipe penetrates through the bottom of the sampling module 1 and is not communicated with the exhaust pump 15, the lower end of the exhaust pipe is vertically arranged in the cavity, the end part of the exhaust pipe adopts a sharp inclined pipe orifice to conveniently penetrate into the storage module 5, the water pumping pipe 43 is in an L-shaped structure, the top of the water pumping pipe is fixedly inserted on a hose interface 431 arranged on the surface of the communicating module 4, the bottom vertically downwards enters the storage module 5 from the cavity and is used for storing a sampling water body in the storage module 5, the storage module 5 comprises a sealing film 51, a sampling bottle 52 and a bottle sleeve 53, preferably, the sealing film 51 is made of a film rubber material, the sampling bottle 52 is sterilized and then sleeved on a bottle opening to achieve a sealing effect, the water pumping pipe 43 and the sealing film 51 are of an integrated structure, the air tightness and the sterility requirements are guaranteed, the bottom of the water pumping pipe 43 extends deep to the bottom of the bottle close to the sampling bottle 52 to prevent the water body from sputtering during sampling, the sampling bottle 52 and the sealing film 51 are provided with a plurality of sets of spare parts, the sampling bottle is a medical sterile glass bottle, multiple sampling of multiple water bodies is convenient, when the sampling bottle 52 is not used, the bottle opening of the sampling bottle 52 is provided with the sealing film 51 to achieve a packaging effect, preferably, a matched packaging bottle cap is further arranged after sampling, and is used for sealing the bottle opening of the sampling bottle 52 after sampling, the bottle cap covers the surface of the sealing membrane 51 to protect the sealing membrane, the bottle sleeve 53 is made of non-transparent materials, can be made of plastics or rubber and can be reused, is sleeved on the surface of the sampling bottle 52 to protect the sampling bottle, and simultaneously prevents the influence of direct sunlight irradiating the water in the sampling bottle 52 on the chemical property in the sampling process, the top edge of the bottle sleeve 53 is provided with more than two sliding blocks 531, the sliding blocks 531 are arranged on the inner wall of the cavity of the bottle sleeve, the annular groove 45 at the bottom of the communication module 4 is arranged on the inner wall of the cavity of the bottle sleeve, the annular groove 45 further comprises an access port, the size of the access port is adapted to that of the sliding blocks 531, the number of the access port is equal to that of the sliding blocks 531, when the storage module 5 is installed, the sliding blocks 531 on the bottle sleeve 53 are pushed in alignment with the access port, then the bottle sleeve 53 is rotated, the storage module 58 can be fixed at the bottom of the communication module 4, and the sealing membrane 51 is directly punctured at the bottoms of the stabilizing agent spray pipe 42 and the bottom of the air exhaust pipe 44 to enter the mouth of the sampling bottle 52 in the pushing process, because sealing membrane 51 adopts the rubber material can keep fine leakproofness in thorn mouth department, prevent that exhaust tube 44 when bleeding 52 atmospheric pressure is not enough, also prevent the water sample pollution simultaneously the cavity, and the exhaust tube 43 is "L" type structure, for conveniently pack into and be equipped with the perpendicular groove 46 of stepping down that link up the lateral wall on intercommunication module 4, preferably, the bottle cover 53 lateral wall still vertically is equipped with second liquid level groove 532, in the sampling process, the liquid level condition in the sampling bottle 52 is observed to accessible second liquid level groove 532, prevent to extract the water sample and excessively exceed the capacity of sampling bottle 52, storage module 5 that this sampler adopted can dismantle to be connected in intercommunication module 4 bottoms, it is convenient to change when using, stabilizer spray tube 42 and exhaust tube 44 are good with storage module 5 intercommunication department leakproofness, can not receive other bacterial contamination in the sampling bottle 52 when having guaranteed the sampling.

Further, as shown in fig. 1, 4, 5, 6 and 7, the sampling module 1 includes a display screen 11, an exhaust port 12, a charging port 13 and a box cover 14, the sampling module 1 is of a box-shaped structure and is fixedly connected to the top of the communicating module 4, one end of the sampling module is also fixedly connected to the handheld portion 2, the other end of the sampling module is hinged to the box cover 14, an air pump 15, a battery pack 16, a control center 17, a sampling rod 18 and a sampling rod driving motor 19 are further fixedly mounted inside the box body of the sampling module 1, the air pump 15 is communicated with the top of the air pumping pipe 44 and is used for pumping air into the sampling bottle 52 to generate negative pressure, so that a water sample enters the sampling bottle 52 from the air pumping pipe 43, air pumped by the air pump 15 is exhausted from the exhaust port 12, the exhaust port 12 is fixedly mounted on the side wall of the sampling module 1 and is communicated with the air outlet of the air pump 15, charging port 13 fixed mounting is in sampling module 1's lateral wall, and with group battery 16 circuit intercommunication for group battery 16 charges, group battery 16 feeds power with display screen 11, aspiration pump 15, control center 17 and sampling pole driving motor 19 circuit intercommunication respectively, control center 17 communicates with display screen 11, aspiration pump 15 and sampling pole driving motor 19 signal respectively, through predetermineeing the air extraction volume at control center 17, controls the maximum value that 15 single bleeds to prevent that the water extraction volume from exceeding the sampling bottle 52 capacity and leading to spilling over and polluting other structures of sampler, preferably, group battery 16 and sampling module 1 are detachable connection, and when carrying out long-time sampling operation, open lid 14 and can take out group battery 16 then change spare group battery 16, use with the open-air environment that adapts to unable charging.

Further, as shown in fig. 1 and fig. 3 to fig. 7, the sampling rod driving motor 19 is connected to the sampling rod 18 through a screw rod, the sampling rod 18 includes a first telescopic rod 181, a second telescopic rod 182, a third telescopic rod 183, a hose buckle 184, a coil box 185, a lifting wire 186, a servo motor 187 and a switch 188, the first telescopic rod 181, the second telescopic rod 182 and the third telescopic rod 183 are all tubular structures and are sequentially sleeved on the latter to be mutually slidably connected, the lengths of the first telescopic rod 181, the second telescopic rod 182 and the third telescopic rod 183 can be selected according to an actual sampling distance, the hose buckle 184 is further fixedly installed at the end portions of the three, the hose buckle 184 is a rubber U-shaped buckle, the hose 47 is buckled to play a role in fixing, the hose 47 is a disposable sterile medical tube, one end of the hose is arranged at the hose interface 431 and is communicated with the water pumping tube 43, and the other end of the hose is clamped on the underwater module 6, further, the third telescopic rod 183 is sleeved in and slidably connected with a pipe sleeve driven by a sampling rod driving motor 19, the pipe sleeve is fixedly installed in the sampling module 1, the coil box 185 is fixedly installed at the end of the first telescopic rod 181, a pulling wire 186 wound in a coil shape is arranged in the coil box around a rotating shaft, the coil box can rotate along with the rotating shaft to lower the coil or recover the pulling wire 186, after the sampling rod 18 is fully extended, the coil box 185 is far away from the operator, a servo motor 187 is installed on the coil box 185, the servo motor 187 is respectively in circuit communication with the battery pack 16, the control center 17, the roller switch 21 and a switch 188, the servo motor 187 is fixedly installed in parallel communication with the sampling rod driving motor 19, and both are respectively in series connection with the battery pack 16, the switch 188 is used for switching between the servo motor 187 and the sampling rod driving motor 19, the roller switch 21 is a roller structure switch, is arranged at the top of the handheld part 2, when an operator holds the handheld part 2, the operator can directly put the thumb on the roller switch 21, and control the rotation amount of the servo motor 187 or the sampling rod driving motor 19 by rolling the roller switch 21, when the change-over switch 188 is switched to the servo motor 187 for circuit communication, the lifting or descending of the underwater module 6 fixed at the lower end of the lifting wire 186 can be controlled, when the change-over switch is switched to the sampling rod driving motor 19 for circuit communication, the extension and retraction of the first telescopic rod 181, the second telescopic rod 182 and the third telescopic rod 183 can be controlled, the extension and retraction amounts of the lifting wire 186 and the sampling rod 18 are all fed back to the display screen 11 through the control center 17 for display, so that the operator can observe the specific horizontal and vertical distances of the underwater module 6, the normalization of water body sampling is ensured, the sampling rod 18 adopted by the device has the function of forward extension of the carrying hose 47, meanwhile, the hose 47 can be quickly conveyed to a required depth through the underwater module 6, multiple functions can be completed through the change-over switch 188 and the roller switch 21, the arrangement positions of the two meet the human engineering principle, and an operator can complete the operation by holding the hose with one hand.

Further, as shown in fig. 6 and 7, the underwater module 6 includes a hose clamp 61, a pull ring 62 and an electrochemical analyzer 63, the underwater module 6 is a metal cone-shaped structure, and can ensure that a pulling wire 186 is vertically lowered, the hose clamp 61 is fixedly installed on the surface of the cone-shaped structure, and is clamped in the hose clamp 61 for fixing when the hose 47 is assembled, the electrochemical analyzer 63 is inserted in the underwater module 6, is in communication connection with the control center 17, and is in circuit communication with the battery pack 16, when the underwater module 6 is lowered to a specified depth, the air pump switch 22 is pressed to start to extract water samples, and the electrochemical analyzer 63 can detect and analyze field parameter indexes of water depth, water temperature, turbidity, conductivity, pH value, free residual chlorine and the like in the water area, and then sends the detected and analyzed field parameter indexes to the display screen 11 through the control center 17 for an operator to refer to record, the pull ring 62 is fixedly installed at the top center of the underwater module 6, for the loop configuration for fixed connection carries and draws line 186, the module 6 under water that this sampler used adopts metal taper structure, has guaranteed to carry and draws line 186 to transfer the accuracy of the degree of depth, can prevent module 6 pollution hose 47 water inlet under water when hose clamp 61 presss from both sides on storage module 5 simultaneously, when different waters carry out sampling operation, operating personnel can use aseptic cloth to clean module 6 under water, prevents to be infected with the pollutant and influences sampling result next time.

Further, as shown in fig. 1-4, the stabilizer module 3 includes an air bottle 31, a stabilizer box 32, an air valve 33, a first liquid level tank 34 and a fixing box 35, the fixing box 35 is fixedly installed on a side surface of the communication module 4, an opening is formed on one surface of the fixing box 35 to communicate with the air valve 33, the stabilizer box 32 can be pushed in through an opening on the other surface, a plurality of stabilizer boxes 32 are reserved, different stabilizing solvents are respectively filled in the stabilizer boxes for use when sampling different water qualities, after the stabilizer box 32 is inserted into the fixing box 35, the stabilizer box 32 is communicated with the stabilizer nozzle 42, the air valve 33 is communicated with the stabilizer box 32, at this time, an air outlet of the pre-filled air bottle 31 is fixed on the air valve 33, after the air valve 33 is opened, the air enters the stabilizer box 32 to press the stabilizer into the stabilizer nozzle 42, so as to achieve a function of extracting water samples and spraying atomized stabilizer through the nozzle 421, the stabilizer sprays more evenly, still is equipped with logical groove first liquid level groove 34 on the fixed box 35, can see the surplus of stabilizer in the stabilizer box 32, reminds the stabilizer box 32 that the sampling personnel in time updated, uses gas cylinder 31 as the pressure source to simplify operation personnel's operation flow.

The invention provides a working principle of a water quality sampler in a public place, which is as follows:

during sampling operation, an operator clamps a disposable medical sterile hose in a hose buckle on a sampling rod, one end of the disposable medical sterile hose is clamped on a hose clamp on an underwater module, the other end of the disposable medical sterile hose is communicated with a hose connector, then a sampling bottle sleeved with a bottle sleeve is pushed upwards into a communicating module, a main sampling bottle is rotationally fixed by a sliding block at the top of the bottle sleeve in an annular groove in the communicating module, a sealing film is punctured at the bottoms of a stabilizing agent spray pipe and an exhaust pipe in the pushing process and enters the top of the sampling bottle, the exhaust pipe is communicated with the hose connector, at the moment, a change-over switch is switched to be communicated with a sampling rod driving motor circuit, a rolling roller switch enables a sampling rod driving motor to drive a first telescopic rod, a second telescopic rod and a third telescopic rod to extend out, the extending length can be seen through a display screen, the change-over switch is switched to be communicated with a servo motor circuit after the specified length is reached, and the servo motor is also controlled to rotate through the rolling switch, the module under water that will carry the lifting wire hoist and mount transfers to required degree of depth, and this presses air pump switch at last, and the aspiration pump begins work, and the air in the sampling bottle produces the negative pressure through the exhaust tube of taking out, because the hose passes through drinking-water pipe and sampling bottle intercommunication, the negative pressure that produces in the bottle can predetermine the single upper limit of drawing water of the water sample suction sampling bottle at module end hose place under water, control center. The purpose of automatically stopping the extraction is achieved, the air valve in the stabilizer module can be opened in the sampling process, and the stabilizer is sprayed in the sampling bottle while sampling.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.