1. The utility model provides an indoor environment detection air collection system, includes surge drum (1), its characterized in that: the collecting cylinder is characterized in that a plurality of label boxes (2) are fixedly arranged at the front end of the collecting cylinder (1), a plurality of air inlets (3) are formed in the right end of the collecting cylinder (1), a filter screen (4) is fixedly arranged on the right side inside the air inlets (3), an air outlet (11) is formed in the left end of the collecting cylinder (1), baffles (12) are fixedly arranged inside the air inlets (3) and the air outlet (11), a through hole (13) is formed in the middle of each baffle (12), a sealing plate (14) is arranged at the left end of each baffle (12), guide rods (15) are symmetrically and fixedly arranged at the left end of each sealing plate (14), springs A (16) are sleeved on the outer walls of the guide rods (15), a plurality of notches (17) are respectively formed in the left end and the right end of the collecting cylinder (1), a partition plate (18) is slidably connected inside the notches (17), the partition plate (18) is of a concave structure, and at least one fixing plate (19) is fixedly arranged on the rear side of the outer wall of the partition plate (18), the inner wall upside of the fixing plate (19) is rotatably connected with a support rod (20), the inner wall downside of the fixing plate (19) is fixedly provided with a spring B (21), the position of the upper side of the support rod (20) at the left end and the right end of the collecting cylinder (1) is provided with a sliding chute A (22), the upper side of the support rod (20) is rotatably connected with a sliding block A (23), the upper end of the collecting cylinder (1) is provided with a gas leakage port (24), a push rod (25) is arranged in the collecting cylinder (1), the lower end of the push rod (25) is fixedly provided with a piston plate (26), the concave inner wall of the partition plate (18) is in friction contact with the outer wall of the push rod (25), the outer wall of the lower side of the push rod (25) is fixedly provided with a plurality of guide blocks (27) at equal intervals, the rear end of the push rod (25) is provided with a plurality of movable grooves (28), the inner part of the movable grooves (28) is slidably connected with a clamping block (29), and the front end of the clamping block (29) is provided with a fixed spring C (30), the other end fixed connection of spring C (30) is inside movable groove (28), open the rear side of collecting vessel (1) upper end and be equipped with spout B (31), spout B (31) inside sliding connection has slider B (32), slider B (32) upper end has set firmly extrusion piece (33), slider B (32) rear end threaded connection has lead screw (34).

2. The indoor environment detection air collection system of claim 1, wherein: filter screen (4) middle part is run through and is equipped with axis of rotation (5), axis of rotation (5) left end is equipped with flabellum (6) admittedly, axis of rotation (5) right-hand member has set firmly brush (7), axis of rotation (5) middle part is rotated with filter screen (4) middle part and is connected, brush (7) inner wall and filter screen (4) right-hand member frictional contact.

3. The indoor environment detection air collection system of claim 2, wherein: a plurality of slots (8) have been seted up to the position of a plurality of air inlet (3) relatively of collection cylinder (1) right-hand member, slot (8) are located air inlet (3) downside, slot (8) inside sliding connection has cutting (9), cutting (9) right-hand member has set firmly collection box (10), cutting (9) and slot (8) cooperation of pegging graft, collect box (10) and baffle (18) clearance fit.

4. The indoor environment detection air collection system of claim 1, wherein: the sealing plate (14) is tightly attached to the baffle (12), the size of the sealing plate (14) is larger than that of the through opening (13), a sliding groove D matched with the guide rod (15) is formed in the left end of the baffle (12), one end of the spring A (16) is fixedly connected with one side of the outer wall of the guide rod (15), the other end of the spring A (16) is fixedly connected with the inside of the sliding groove D, and the guide rod (15) is in sliding fit with the sliding groove D.

5. The indoor environment detection air collection system of claim 1, wherein: the slide block A (23) is connected with the slide groove A (22) in a sliding mode, magnets are fixedly arranged at the bottom of the slide block A (23) and the bottom of the slide groove A (22), and the length of the slide groove A (22) is larger than half of the width of the interior of the collecting cylinder (1).

6. The indoor environment detection air collection system of claim 1, wherein: the size of gas leakage mouth (24) is greater than the size of push rod (25), piston plate (26) outer wall and collection section of thick bamboo (1) inner wall sliding contact, guide block (27) are the triangle-shaped structure, guide block (27) upper end and baffle (18) lower extreme extrusion contact.

7. The indoor environment detection air collection system of claim 1, wherein: the rear side of the upper end of the clamping block (29) is of an inclined structure, the front side of the upper end of the extrusion block (33) is of an inclined structure, and the lower end of the clamping block (29) is in extrusion contact with the upper end of the extrusion block (33).

8. The indoor environment detection air collection system of claim 1, wherein: rubber pads (35) are fixedly arranged at the notch (17), the inner end of the partition plate (18) and the right end of the sealing plate (14).

9. The indoor environment detection air collection system of claim 8, wherein: rubber pads (35) that baffle (18) inner set up are the stripe structure that the horizontal direction was arranged, rubber pads (35) that both ends set up about breach (17) are the stripe structure that the horizontal direction was arranged, rubber pads (35) that both ends set up around breach (17) are the stripe structure that vertical direction was arranged.

Background

Indoor air index has been the problem that city citizen is concerned with very much, can remain a large amount of formaldehyde in the house after the fitment, and this material can cause harm to the human body, so can generally leave the house vacant one end time after the fitment and make the room in the formaldehyde content reduce later live again, can detect room formaldehyde before live, wait until formaldehyde content reduce to certain standard again live and avoid formaldehyde content too high to cause the harm to the human body. Patent document with publication number CN212340773U in the prior art provides an indoor environment detection air collection device, which can collect indoor air for convenient detection by arranging an air pump, a connecting pipe, a one-way valve and an air collecting cylinder. Although the device has more beneficial effects, the following problems still exist: when gathering with the indoor air of family, need use a plurality of collection system, if adopt same collection system collection air sample, then need collect and just can carry out next indoor air collection after transferring to outside air sample collecting bottle in indoor collection, can not unify collection and storage to family multi-chambered, and a large amount easily causes the confusion, still need additionally to carry a plurality of air sample collecting bottles, and the operation is very inconvenient, influences work efficiency. In view of this, we propose an indoor environment detection air collection system.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide an air collecting device for indoor environment detection, which aims to solve the problems in the background technology.

2. Technical scheme

An air collecting device for indoor environment detection comprises a collecting cylinder, wherein a plurality of label boxes are fixedly arranged at the front end of the collecting cylinder, a plurality of air inlets are formed in the right end of the collecting cylinder, a filter screen is fixedly arranged on the right side inside the air inlets, an air outlet is formed in the left end of the collecting cylinder, baffles are fixedly arranged inside the air inlets and the air outlet, an opening is formed in the middle of each baffle, a sealing plate is arranged at the left end of each baffle, guide rods are symmetrically and fixedly arranged at the left end of each sealing plate, springs A are sleeved on the outer walls of the guide rods, a plurality of notches are formed in the left end and the right end of the collecting cylinder, a partition plate is slidably connected inside each notch, is of a concave structure, at least one fixing plate is fixedly arranged on the rear side of the outer wall of each partition plate, a support rod is rotatably connected to the upper side of the inner wall of each fixing plate, springs B are fixedly arranged on the lower side of the inner wall of each fixing plate, and sliding chutes A are formed in positions, corresponding to the upper sides of the support rods, at the left end and the left end of the collecting cylinder, the utility model discloses a garbage collection device, including vaulting pole, collecting cylinder, piston plate, spring C, spout B, vaulting pole upside rotation is connected with slider A, the gas leakage mouth has been seted up to the collecting cylinder upper end, the inside push rod that is equipped with of collecting cylinder, the piston plate has set firmly to the push rod lower extreme, the concave style of calligraphy inner wall and the outer wall friction contact of push rod of baffle, push rod downside outer wall equidistant a plurality of guide blocks that have set firmly, a plurality of activity grooves have been seted up to the push rod rear end, the inside sliding connection of activity inslot has the fixture block, the fixture block front end is equipped with spring C admittedly, spring C's other end fixed connection is in the activity inslot portion, collecting cylinder upper end rear side is seted up spout B, the inside sliding connection of spout B has slider B, slider B upper end has set firmly the extrusion piece, slider B rear end threaded connection has the lead screw.

Preferably, the filter screen middle part is run through and is equipped with the axis of rotation, the axis of rotation left end is equipped with the flabellum admittedly, the axis of rotation right-hand member has set firmly the brush, the axis of rotation middle part is connected with the filter screen middle part is rotated, brush inner wall and filter screen right-hand member frictional contact.

Preferably, a plurality of slots have been seted up to the position of a plurality of air inlets of collection section of thick bamboo right-hand member, the slot is located the air inlet downside, slot inside sliding connection has the cutting, the cutting right-hand member has set firmly the collection box, the cutting is pegged graft with the slot and is cooperated, collect box and baffle clearance fit.

Preferably, the closing plate closely laminates with the baffle, the size of closing plate is greater than the size of opening, the baffle left end seted up with guide arm assorted spout D, spring A one end and guide arm outer wall one side fixed connection, the spring A other end and the inside fixed connection of spout D, guide arm and spout D sliding fit.

Preferably, slider A and spout A sliding connection, slider A bottom and spout A bottom all set firmly the magnet, spout A's length is greater than the half of the inside width of collection section of thick bamboo.

Preferably, the size of gas leakage mouth is greater than the size of push rod, piston plate outer wall and collecting vessel inner wall sliding contact, the guide block is the triangle-shaped structure, guide block upper end and baffle lower extreme extrusion contact.

Preferably, the rear side of the upper end of the clamping block is of an inclined structure, the front side of the upper end of the extrusion block is of an inclined structure, and the lower end of the clamping block is in extrusion contact with the upper end of the extrusion block.

Preferably, rubber pads are fixedly arranged on the notch, the inner end of the partition plate and the right end of the sealing plate.

Preferably, the rubber pads arranged at the inner end of the partition board are all in a strip-shaped structure arranged in the horizontal direction, the rubber pads arranged at the upper end and the lower end of the notch are in a strip-shaped structure arranged in the horizontal direction, and the rubber pads arranged at the front end and the rear end of the notch are in a strip-shaped structure arranged in the vertical direction.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) the air collecting device is provided with the plurality of partition plates, the two partition plates are gradually opened towards two sides by the extrusion matching of the guide block and the partition plates until the piston plate can ascend, the partition plates can move towards the inside of the collecting cylinder under the action of the spring B to form a closed structure with the surface of the push rod, so that collected air can be stored in a closed space, the air collecting device can collect air in a plurality of different areas of a single household, the air can be prevented from being mixed, the detection result is more accurate, the detection error is reduced, and the working efficiency of workers is improved.

(2) The air sample extrusion device is provided with the stay bar and the magnets, the movement stability of the partition board is improved by the sliding fit of the stay bar and the expansion or retraction of the partition board, the arrangement of the chute A and the magnets ensures that the partition board can not be attracted and fixed by the stay block A and the magnets arranged on the chute A when the partition board is expanded to the extent that the piston board can rise and pass in the process of collecting and storing air samples, so that the partition board can be retracted in time to form a closed space, the magnets arranged on the slide block A and the chute A are attracted and fixed by manpower in the process of extruding the air samples, the phenomenon that the partition board is clamped or even damaged when the partition board is retracted in the process of extruding the air samples is avoided, the expansion stability of the partition board is improved, and the use safety of the device is further ensured.

(3) According to the invention, the filter screen is arranged in the air inlet, so that dust can be blocked, the dust is prevented from entering the collecting cylinder to influence the quality of collected air and influence the detection result, the push rod is pulled upwards, the push rod enables the sealing plate to be separated from the through opening through the piston plate, the fan blade can be driven to rotate when air enters the collecting cylinder from the through opening, the brush can be driven to rotate by the rotation of the fan blade, the dust on the filter screen can be removed by the rotation of the brush, and the influence of excessive blocking of the filter screen by the dust on the air collection efficiency is avoided.

(4) According to the dust collecting box, dust falling from the filter screen can be collected through the arranged collecting box, secondary pollution caused by falling of the dust is avoided, collecting points of air of different parts can be conveniently recorded through the arranged label box, so that workers can distinguish the collecting points, abnormal errors of detection results caused by mistake recording of the workers are avoided, the push rod can be fixed through the arranged clamping block, and the situation that the air in the collecting cylinder is extruded out due to shaking of the push rod during transportation to influence the collecting effect is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the overall structure of the present invention;

FIG. 3 is an enlarged view of part A of the present invention;

FIG. 4 is a schematic view of a baffle plate portion of the present invention;

FIG. 5 is a schematic view of a portion of the strut of the present invention;

FIG. 6 is a schematic view of a fixture block according to the present invention;

the reference numbers in the figures illustrate: 1. a collection canister; 2. a label box; 3. an air inlet; 4. filtering with a screen; 5. a rotating shaft; 6. a fan blade; 7. a brush; 8. a slot; 9. cutting; 10. a collection box; 11. an air outlet; 12. a baffle plate; 13. a port; 14. a sealing plate; 15. a guide bar; 16. a spring A; 17. a notch; 18. a partition plate; 19. A fixing plate; 20. a stay bar; 21. a spring B; 22. a chute A; 23. a slide block A; 24. a gas leakage port; 25. A push rod; 26. a piston plate; 27. a guide block; 28. a movable groove; 29. a clamping block; 30. a spring C; 31. a chute B; 32. a slide block B; 33. extruding the block; 34. a screw rod; 35. and (7) a rubber pad.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-6, the present invention provides a technical solution:

an air collecting device for indoor environment detection comprises a collecting cylinder 1, a plurality of label boxes 2 are fixedly arranged at the front end of the collecting cylinder 1, a plurality of air inlets 3 are formed in the right end of the collecting cylinder 1, a filter screen 4 is fixedly arranged on the right side inside the air inlets 3, an air outlet 11 is formed in the left end of the collecting cylinder 1, baffle plates 12 are fixedly arranged inside the air inlets 3 and the air outlet 11, a through hole 13 is formed in the middle of each baffle plate 12, a sealing plate 14 is arranged at the left end of each baffle plate 12, guide rods 15 are symmetrically and fixedly arranged on the left end of each sealing plate 14, springs A16 are sleeved on the outer walls of the guide rods 15, a plurality of notches 17 are formed in the left end and the right end of the collecting cylinder 1, partition plates 18 are of a concave structure, at least one fixing plate 19 is fixedly arranged on the rear sides of the outer walls of the partition plates 18, supporting rods 20 are rotatably connected on the upper sides of the inner walls of the fixing plates 19, springs B21 are fixedly arranged on the lower sides of the inner walls of the collecting cylinder 1, sliding grooves A22 are formed in positions, which are opposite to the upper sides of the supporting rods 20, 20 upside rotations of vaulting pole are connected with slider A23, gas leakage mouth 24 has been seted up to 1 upper end of collecting vessel, 1 inside push rod 25 that is equipped with of collecting vessel, the push rod 25 lower extreme has set firmly piston plate 26, the concave type inner wall and the push rod 25 outer wall frictional contact of baffle 18, push rod 25 downside outer wall equidistant a plurality of guide blocks 27 have set firmly, a plurality of movable groove 28 have been seted up to push rod 25 rear end, the inside sliding connection of movable groove 28 has fixture block 29, fixture block 29 front end is equipped with spring C30 firmly, spring C30's other end fixed connection is inside movable groove 28, 1 upper end rear side division of collecting vessel is equipped with spout B31, the inside sliding connection of spout B31 has slider B32, slider B32 upper end has set firmly extrusion block 33, slider B32 rear end threaded connection has lead screw 34. Make guide block 27 extrude baffle 18 through pulling push rod 25, make two baffles 18 open gradually to both sides and can rise to piston plate 26 and pass through, when the lower extreme of piston plate 26 is located baffle 18 upper end, can make baffle 18 to the inside motion of surge drum 1 under spring B21's effect, and form airtight structure with the surface of push rod 25, thereby can store the air of gathering to this airtight space in, can carry out air acquisition and separately store to a plurality of different regions of single family through unified collection system, make the testing result more accurate, reduce detection error, improve staff's work efficiency.

Specifically, the middle part of the filter screen 4 is provided with a rotating shaft 5 in a penetrating manner, the left end of the rotating shaft 5 is fixedly provided with a fan blade 6, the right end of the rotating shaft 5 is fixedly provided with a brush 7, the middle part of the rotating shaft 5 is rotatably connected with the middle part of the filter screen 4, and the inner wall of the brush 7 is in friction contact with the right end of the filter screen 4. In the air collection process, the air passes through filter screen 4 and can follow opening 13 and get into 1 insidely of collecting vessel through air inlet 3, can drive flabellum 6 during the air flow and rotate, and flabellum 6 rotates and to drive brush 7 through axis of rotation 5 and rotate, and brush 7 rotates and to clear up filter screen 4 surface.

Further, a plurality of slots 8 have been seted up to the relative position of a plurality of air inlets 3 of 1 right-hand member of collection section of thick bamboo, and slot 8 is located 3 downside of air inlet, and the inside sliding connection of slot 8 has cutting 9, and cutting 9 right-hand members has set firmly and has collected box 10, and cutting 9 is pegged graft with slot 8 and is cooperated, collects box 10 and 18 clearance fit of baffle. The cleaned dust falls into the collecting box 10 on the lower side of the air inlet 3, and the collecting box 10 can be taken down to process the dust inside through the matching of the inserting strips 9 and the slots 8.

Still further, closing plate 14 and baffle 12 closely laminate, and closing plate 14's size is greater than the size of opening 13, and baffle 12 left end is seted up with guide arm 15 assorted spout D, spring A16 one end and 15 outer wall one sides fixed connection of guide arm, the inside fixed connection of spring A16 other end and spout D, guide arm 15 and spout D sliding fit. Can drive the closing plate 14 when collecting cylinder 1 inside atmospheric pressure changes and make the closing plate 14 open through hole 13 to realize that the air is gathered and is stored to collecting cylinder 1 and the effect of taking out the air in collecting cylinder 1.

Furthermore, the sliding block A23 is connected with the sliding groove A22 in a sliding mode, magnets are fixedly arranged at the bottom of the sliding block A23 and the bottom of the sliding groove A22, and the length of the sliding groove A22 is larger than half of the width of the interior of the collecting cylinder 1. In the process of extruding the air sample, after the lower end of the piston plate 26 is extruded and touched with the upper end of the partition plate 18, the two partition plates 18 are pulled to two sides, so that the slide block A23 can slide to the bottom of the slide groove A22, the slide block A23 and the magnets on the slide groove A22 can be attracted and fixed, the partition plate 18 is prevented from being clamped or even damaged in the process of extruding the air sample, and the use safety of the device is guaranteed; through the length design with spout A22 for being greater than the half of the inside width of collecting vessel 1, in carrying out the air acquisition in-process, baffle 18 opens when the degree that piston plate 26 can rise to pass through, because still there is great distance between slider A23 and the spout A22, consequently can not make the magnet that sets up on propping slider A23 and the spout A22 attract together to the guarantee baffle can in time retract and form airtight space.

It should be noted that the size of the air leakage port 24 is larger than that of the push rod 25, the outer wall of the piston plate 26 is in sliding contact with the inner wall of the collecting cylinder 1, the guide block 27 is in a triangular structure, and the upper end of the guide block 27 is in pressing contact with the lower end of the partition plate 18. The push rod 25 is continuously lifted to press the partition plates 18 through the guide block 27, so that the two partition plates 18 are opened towards two sides, when the lower end of the piston plate 26 is positioned at the upper end of the partition plate 18, the partition plate 18 can be moved towards the interior of the collecting cylinder 1 under the action of the spring B21, and the two opposite partition plates 18 can seal the air at the lower side.

It should be noted that the rear side of the upper end of the latch 29 is inclined, the front side of the upper end of the extrusion block 33 is inclined, and the lower end of the latch 29 is in pressing contact with the upper end of the extrusion block 33.

In addition, rubber pads 35 are fixedly arranged at the right ends of the notch 17, the inner end of the partition plate 18 and the sealing plate 14, the rubber pads 35 arranged at the inner end of the partition plate 18 are of strip-shaped structures arranged in the horizontal direction, the rubber pads 35 arranged at the upper end and the lower end of the notch 17 are of strip-shaped structures arranged in the horizontal direction, and the rubber pads 35 arranged at the front end and the rear end of the notch 17 are of strip-shaped structures arranged in the vertical direction. Through the rubber pad 35 that sets up in breach 17, baffle 18 inner and sealing plate 14 right-hand member, can ensure that collection cylinder 1 and outside and each air sample collection storage chamber inside of collection cylinder 1 are airtight structure to through setting up breach 17 and the rubber pad 35 of baffle 18 inner into the stripe structure, can reduce the frictional force of baffle 18 and push rod 25 motion in-process when guaranteeing the inside seal of collection cylinder 1, reduce manipulation strength.

The working principle is as follows: when the device is required to work, the push rod 25 is pulled upwards, the push rod 25 drives the piston plate 26 to move upwards, when the piston plate 26 moves upwards, the air pressure inside the collecting cylinder 1 can be changed to drive the right sealing plate 14 to open the through hole 13, air can enter the collecting cylinder 1 from the through hole 13 through the air inlet 3 through the filter screen 4, the fan blades 6 can be driven to rotate when the air flows, the fan blades 6 can drive the brush 7 to rotate through the rotating shaft 5, the surface of the filter screen 4 can be cleaned through the rotation of the brush 7, the cleaned dust falls into the collecting box 10, the collecting box 10 can be taken down to treat the dust inside the collecting box through the matching of the inserting strips 9 and the inserting grooves 8, after the upper end of the guide block 27 is connected with the lower end of the partition plate 18, the push rod 25 continuously rises to extrude the partition plate 18 through the guide block 27, the two partition plates 18 are opened towards two sides, when the lower end of the piston plate 26 is positioned at the upper end of the partition plate 18, the partition plate 18 can move towards the inside of the collecting cylinder 1 under the action of the spring B21, the two opposite partition plates 18 can seal air at the lower side, meanwhile, the guide rod 15 is driven under the action of the spring A16 to enable the sealing plate 14 to seal the through hole 13, then the device is carried to other places for collection, the push rod 25 is pulled continuously, air at different places can be separated in the collecting cylinder 1 under the action of the partition plates 18, the fixture block 29 can retract into the movable groove 28 under the action of the air leakage port 24 when the push rod 25 rises, when the push rod 25 continuously rises to the position of the movable groove 28, which is higher than the top surface of the collecting cylinder 1, the fixture block 29 is popped out and clamped under the action of the spring C30, so that the fixture block 29 can be matched with the collecting cylinder 1 to fix the push rod 25, and the situation that the push rod 25 shakes to enable the internal air to be squeezed out of the collecting cylinder 1 during transportation is avoided, the collection effect is influenced, when the air in the collection cylinder 1 needs to be taken out, the screw rod 34 is rotated to enable the sliding block B32 and the extrusion block 33 to be located at the foremost end, the push rod 25 is extruded downwards, the fixture block 29 is retracted into the movable groove 28 under the action of the extrusion block 33, the push rod 25 can smoothly descend, the push rod 25 can be matched with the piston plate 26 to enable the air pressure in the middle of the piston plate 26 and the partition plate 18 to rise when descending, so that the left side sealing plate 14 moves along the direction of the guide rod 15, the left side through hole 13 is opened, the air can flow out of the collection cylinder 1 from the left side through hole 13 through the air outlet 11, at the moment, the air can be collected and detected outside the air outlet 11 by using the air collecting bottle, after the lower end of the piston plate 26 is extruded and touched with the upper end of the partition plate 18, the two partition plates 18 on the upper parts are pulled to the two sides, the sliding block A23 can slide to the bottom of the sliding groove A22, so that the magnets on the sliding block A23 and the sliding groove A22 can be attracted and fixed, avoid air sample to extrude in-process baffle 18 indentation emergence card and die or even damage, continue to promote push rod 25 this moment and can make piston plate 26 and the next atmospheric pressure between two baffles 18 rise, can make this part gas can be taken out like the same reason, make the device can gather the air of different positions through setting up a plurality of baffles 18, and can divide the chamber to handle it, wherein can be convenient for the staff through the label box 2 that sets up do the mark to the air of different positions, avoid causing the confusion when examining, influence the testing result.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.