1. The utility model provides an underground utility tunnel carbon dioxide concentration detecting instrument which characterized in that includes:

the air suction assembly comprises an air bag arranged in the constant pressure box, and the volume of the air bag changes along with the change of the concentration of the carbon dioxide;

the rocker assembly comprises a rocker of which the middle part rotates around the movable support, and the first end of the rocker is movably connected with the air bag;

the electric connection assembly comprises an electric contact switch and a push rod for enabling the electric contact switch to be in contact with and electrified, the push rod is movably connected to the second end of the rocker, and the electric contact switch starts an alarm and a motor after being in contact with and electrified;

and the air dispersing assembly comprises an electric fan which is controlled by the motor to rotate.

2. The underground utility tunnel carbon dioxide concentration detecting instrument of claim 1, wherein a top end capsule wall of the air bag is movably connected with a first sliding block, a first end of the rocker is movably connected with an articulated seat, and the articulated seat is fixedly connected with a top end of the first sliding block; and an air inlet at the bottom end of the air bag is connected with an air suction pipe through an air pump.

3. The underground utility tunnel carbon dioxide concentration detecting instrument of claim 1, wherein the electric contact switch comprises an electric contact protruding head and an electric contact groove which are connected in a lifting manner, the electric contact protruding head and the electric contact groove are electrified after being contacted, a clamping plate is fixedly connected to the outer wall of the electric contact protruding head, and the push rod is fixedly connected to the outer wall of the clamping plate.

4. The underground utility tunnel carbon dioxide concentration detecting instrument according to claim 3, wherein a hook is fixedly installed at the bottom end of the clamping plate, clamping rings are fixedly installed at two sides of the electric contact groove, and the clamping rings and the hook are mutually clamped when the electric contact protruding head and the electric contact groove are contacted and electrified.

5. The underground utility tunnel carbon dioxide concentration detecting instrument according to claim 4, wherein a bayonet is arranged at the top end of the snap ring, a clamping block is movably connected to one side of the bayonet, the inner wall of the other side of the bayonet is movably connected with the outer wall of the clamping block, a tension rope is connected to the clamping block and the snap ring, the tension rope goes around a movable pulley, the movable pulley is movably connected to the outer wall of the snap ring through a telescopic rod, and the outer wall of the telescopic rod is movably connected with the outer wall of the first spring.

6. The underground utility tunnel carbon dioxide concentration detection instrument of claim 2, wherein the air suction assembly, the rocker assembly and the electrical connection assembly are disposed within a first housing, and a nozzle of the air suction pipe extends outside the first housing.

7. The underground utility tunnel carbon dioxide concentration detecting instrument of claim 6, wherein the air diffusing assembly is arranged in a second box, one side of the second box is provided with an air diffusing port, two sides of the bottom end of the electric fan are fixedly provided with rollers, the outer wall of each roller is movably connected with a clamping groove, the clamping grooves on the two sides are parallel to each other, and one end part of each clamping groove is positioned in the air diffusing port.

8. The underground utility tunnel carbon dioxide concentration detection instrument of claim 7, further comprising a traction assembly including a traction base fixed to a bottom end of the electric fan and a traction rope connected between the traction base and the rocker, the traction rope drawing the traction base to move with the rotation of the rocker.

9. The underground utility tunnel carbon dioxide concentration detecting instrument according to claim 8, wherein the first box is fixed above the second box by a fixing support, a bottom plate of the first box is communicated with a top plate of the second box by a pipeline, a fixed pulley is fixed on the inner wall of the top plate of the second box, the hauling cable passes through the pipeline, and the outer wall of the hauling cable is movably connected with the fixed pulley.

10. The underground utility tunnel carbon dioxide concentration detecting instrument of claim 8, wherein the pulling assembly further comprises a second spring connected to the pulling base by a movable rod.

Background

Carbon dioxide is the most important artificial greenhouse gas in the atmosphere and is generally considered as the main factor causing global warming, when the concentration of carbon dioxide in the air is lower than 2%, the carbon dioxide has no obvious harm to people, if the concentration of carbon dioxide exceeds the concentration, the carbon dioxide can cause the damage of respiratory organs of human bodies, when the concentration of carbon dioxide in the air exceeds a certain limit, the human bodies can generate a poisoning phenomenon, the carbon dioxide with high concentration can suffocate people, and under the condition of low oxygen, the carbon dioxide with concentration of 8% -10% can cause the death of people and livestock in a short time.

On the market at present, the carbon dioxide detection instrument application is in many fields, wherein a multiple functional carbon dioxide detection instrument is particularly important when sealing the operation, reduction staff's that can be great health injury, and most carbon dioxide detection instruments carry out carbon dioxide concentration survey through infrared spectroscopy, it is too big to indoor detection space, the operation is complicated, can only provide single warning function simultaneously, the problem that indoor carbon dioxide concentration of solution that can not be timely becomes high, consequently, need a dioxide detector when the carbon dioxide concentration in the closed chamber is ultrahigh, when possessing and reminding the staff, can carry out the function of indoor exhaust.

Disclosure of Invention

In order to realize the purposes of alarming for the ultrahigh concentration and connecting indoor air exhaust, the invention provides the following technical scheme:

an underground utility tunnel carbon dioxide concentration detecting instrument, it includes:

the air suction assembly comprises an air bag arranged in the constant pressure box, and the volume of the air bag changes along with the change of the concentration of the carbon dioxide;

the rocker assembly comprises a rocker of which the middle part rotates around the movable support, and the first end of the rocker is movably connected with the air bag;

the electric connection assembly comprises an electric contact switch and a push rod for enabling the electric contact switch to be in contact with and electrified, the push rod is movably connected to the second end of the rocker, and the electric contact switch starts an alarm and a motor after being in contact with and electrified;

and the air dispersing assembly comprises an electric fan which is controlled by the motor to rotate.

As a preferred embodiment of the present invention, a first sliding block is movably connected to a top end capsule wall of the air bag, a hinged support is movably connected to a first end of the rocker, and the hinged support is fixedly connected to a top end of the first sliding block; and an air inlet at the bottom end of the air bag is connected with an air suction pipe through an air pump.

As a preferred embodiment of the present invention, the electrical contact switch includes an electrical contact protrusion and an electrical contact groove which are connected in a lifting manner, the electrical contact protrusion is electrically connected to the electrical contact groove after contacting, a clamping plate is fixedly connected to an outer wall of the electrical contact protrusion, and the push rod is fixedly connected to an outer wall of the clamping plate.

As a preferred embodiment of the present invention, a hook is fixedly installed at the bottom end of the clamping plate, snap rings are fixedly installed at both sides of the electrical contact groove, and the snap rings and the hook are mutually engaged when the electrical contact protrusion and the electrical contact groove are contacted and energized.

As a preferred embodiment of the present invention, a bayonet is disposed at a top end of the snap ring, a clamping block is movably connected to one side of the bayonet, an inner wall of the other side of the bayonet is movably connected to an outer wall of the clamping block, a tension rope is connected to the clamping block and the snap ring, the tension rope passes around a movable pulley, the movable pulley is movably connected to the outer wall of the snap ring through a telescopic rod, and the outer wall of the telescopic rod is movably connected to an outer wall of the first spring.

As a preferred embodiment of the present invention, the air suction assembly, the rocker assembly and the electrical connection assembly are disposed in a first box, and a nozzle of the air suction pipe extends out of the first box.

As a preferred embodiment of the present invention, the air diffusing assembly is disposed in the second box, an air diffusing port is formed at one side of the second box, rollers are fixedly mounted at two sides of the bottom end of the electric fan, clamping grooves are movably connected to outer walls of the rollers, the clamping grooves at two sides are parallel to each other, and an end of one end is located in the air diffusing port.

As a preferred embodiment of the present invention, the electric fan further comprises a traction assembly, which includes a traction base fixed at a bottom end of the electric fan and a traction rope connected between the traction base and the rocker, wherein the traction rope pulls the traction base to move along with the rotation of the rocker.

As a preferred embodiment of the present invention, the first box is fixed above the second box by a fixing support, a bottom plate of the first box is communicated with a top plate of the second box by a pipeline, a fixed pulley is fixed on an inner wall of the top plate of the second box, and the traction rope passes through the pipeline and an outer wall of the traction rope is movably connected to the fixed pulley.

As a preferred embodiment of the present invention, the traction assembly further comprises a second spring connected to the traction base through a movable rod.

The invention has the beneficial effects that: the underground comprehensive pipe gallery carbon dioxide concentration detecting instrument works through the air pump, quantitative air is extracted from a room by utilizing the air suction pipe to enter the air bag, the air bag is placed in the constant pressure box, along with the change of the carbon dioxide concentration, the pressure in the air bag is greater than the air pressure of the constant pressure box, the volume of the air bag can be changed, the volume of the air bag is increased, the air bag drives the rocker assembly to move, meanwhile, the traction rope can be pulled, the movement of the rocker assembly drives the electric connection assembly to move up and down, the traction rope drives the traction assembly to move through the fixed pulley, when the carbon dioxide concentration in the room is ultrahigh, the volume of the air bag is increased, the rocker assembly drives the electric connection assembly to move to realize the contact of the electric contact convex head and the electric contact groove, the alarm bell is electrified with the motor, the alarm bell makes a sound, the traction assembly drives the air diffusion assembly to appear from the air diffusion port, the motor drives the electric fan to rotate, thereby realizing that an instrument with certain concentration is reached to alarm, reminding constructors in a pipe gallery, and simultaneously linking the effects of sending and exhausting air by starting the on-site emergency fan.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of an inhalation alarm structure of a detector according to the present invention.

FIG. 2 is a schematic structural diagram of the detector of the present invention during operation of air suction alarm.

FIG. 3 is a schematic view of the fan exhaust structure of the detecting instrument of the present invention.

Fig. 4 is a partial enlarged view of the invention at a in fig. 1.

FIG. 5 is a schematic view of the alarm and exhaust linkage structure of the detecting instrument of the present invention.

FIG. 6 is a schematic diagram of the right view of the fan of the probing apparatus according to the present invention.

FIG. 7 is a schematic view of the snap ring of FIG. 1 according to the present invention.

Fig. 8 is a schematic perspective view of the snap ring of fig. 1 according to the present invention.

The numbers in the figure are related as follows:

1-a getter assembly; 101-an air suction pipe; 102-an air pump; 103-air bag; 104-constant pressure box; 105-a first slider; 2-a rocker assembly; 201-wane; 202-a push rod; 203-a movable support; 204-free bearing; 3-a traction rope; 4-an electrical connection assembly; 401-card board; 402-a hook; 403-a first connection block; 404-an electrical contact head; 405-electrical contact grooves; 406-a snap ring; 4061-a movable ring; 4062-fixture block; 4063-bolt; 4064-string; 4065-a movable pulley; 4066-telescoping rod; 4067-a first spring; 4068-push button; 5-an alarm bell; 6-fixed pulley; 7-a traction assembly; 701-a second spring; 702-a pulley; 703-a movable rod; 704-a second connection block; 8-an air diffusing component; 801-electric machine; 802-a fan; 803-rollers; 804-card slot; 9-air diffuser.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, the carbon dioxide concentration detection instrument for the underground comprehensive pipe gallery comprises an air suction assembly 1, a rocker assembly 2, an electric connection assembly 4, a fixed pulley 6, a traction assembly 7, an air diffusing assembly 8 and an air diffusing port 9, wherein the right side of the air suction assembly 1 is movably connected with the left side of the rocker assembly 2, the bottom end of the rocker assembly 2 is fixedly provided with a traction rope 3, the right side of the rocker assembly 2 is movably connected with the left side of the electric connection assembly 4, the right side of the electric connection assembly 4 is fixedly provided with an alarm bell 5, the outer wall of the traction rope 3 is movably connected with the outer wall of the fixed pulley 6, the left side of the traction rope 3 is fixedly installed with the right side of the traction assembly 7, the top end of the traction assembly 7 is fixedly installed with the bottom end of the air diffusing assembly 8, and the right side of the air diffusing assembly 8 is movably connected with the left side of the air diffusing port 9. It is understood that the alarm bell 5 may be replaced by other alarm devices such as a warning light and a speaker.

Specifically, subassembly 1 of breathing in includes breathing pipe 101, the right side fixed mounting of breathing pipe 101 has air pump 102, the right side fixed mounting of air pump 102 has gasbag 103, the outer wall swing joint of gasbag 103 has constant pressure case 104, the top bag wall swing joint of gasbag 103 has first slider 105, rocker subassembly 2 includes rocker 201, the right side swing joint of rocker 201 has push rod 202, the left side swing joint of rocker 201 has free bearing 204, the bottom fixed mounting of rocker 201 has movable support 203, rocker 201 can rotate around movable support 203, realize two tilting.

The hinged support 204 at the left side of the rocker 201 is fixedly connected with the first slide block 105 at the top end of the air bag 103, the top end bag wall of the air bag 103 defines a horizontal groove with an open top, the first slide block 105 can move along the horizontal groove, and the hinged support 204 further realizes the rotary connection of the rocker 201 and the top end of the air bag 103.

The constant pressure box 104 can be defined as a constant atmospheric pressure, the constant pressure box 104 is slender and vertically arranged, the air bag 103 is placed in the constant pressure box 104, the air pump 102 works, the air suction pipe 101 is utilized to extract quantitative air from the indoor to enter the air bag 103, along with the increase of the concentration of carbon dioxide, the pressure in the air bag 103 is greater than the atmospheric pressure of the constant pressure box 104, therefore, the volume of the air bag 103 can be changed, the volume of the air bag 103 is increased, and the air bag 103 is expanded upwards along the height of the slender constant pressure box 104, and the height is increased.

Preferably, the suction module 1, the rocker module 2 and the electrical connection module 4 are integrated inside a first housing, and the outer nozzle of the suction pipe of the suction module 1 extends to the outside of the first housing, so as to draw air from the room.

The electric contact assembly 4 comprises an electric contact switch and a push rod 202 for enabling the electric contact switch to be contacted and electrified, the push rod 202 is movably connected to the right side of the rocker 201, and the electric contact switch is contacted and electrified to start the alarm bell 5 and the motor 801. The electric contact switch further comprises an electric contact convex head 404 and an electric contact groove 405 which are connected in a lifting way, the electric contact convex head 404 and the electric contact groove 405 are electrified after being contacted, the lifting connection between the electric contact convex head 404 and the electric contact groove 405 can be realized through a lifting support, the top end of the electric contact convex head 404 is fixedly connected with a first connecting block 403, the outer wall of the first connecting block 403 is fixedly connected with a circle of clamping plate 401, and the push rod 202 is fixedly connected to the outer wall of the clamping plate 401. The clamping plates can be two, and are respectively fixedly connected to the left side and the right side of the first connecting block 403. The bottom end of the clamping plate 401 is fixedly provided with at least two clamping hooks 402, and the clamping hooks 402 are symmetrically arranged at the left side and the right side of the electric contact raised head 404. Snap rings 406 are fixedly arranged on the outer sides of the electric contact grooves 405, the number and the positions of the snap rings 406 are completely consistent with those of the snap hooks 402, and each pair of snap rings 406 and the snap hooks 402 are just mutually clamped together when the electric contact convex heads 404 and the electric contact grooves 405 are contacted and electrified.

Referring to fig. 7 and 8, the clasp 406 is composed of a movable ring 4061, a fastening block 4062, a bolt 4063, a string 4064, a movable pulley 4065, a telescopic rod 4066, a first spring 4067, and a button 4068, wherein the string 4064 may be another string with a tension capability. A bayonet is arranged at the top end of the snap ring 406, one end of the clamping block 4062 is rotatably connected to one side of the bayonet through the movable ring 4061, the outer wall of the other end of the clamping block 4062 is located on the inner side of the inner wall of the other side of the bayonet, and the clamping block 4062 and the inner wall are movably connected. The top end of the clamping block 4062 is fixedly mounted with the bottom end of the bolt 4063, the outer wall of the bolt 4063 is fixedly mounted with the top end of the string 4064, the outer wall of the string 4064 is movably connected with the outer wall of the movable pulley 4065, the left side of the movable pulley 4065 is fixedly mounted with the right side of the telescopic rod 4066, the outer wall of the telescopic rod 4066 is movably connected with the outer wall of the first spring 4067, the left side of the telescopic rod is fixedly mounted with the outer wall of the clamping ring 406, the right side of the movable pulley 4065 is fixedly mounted with the button 4068, the bottom end of the string 4064 is fixedly connected with another bolt, and the bolt is fixedly connected with the outer wall. Preferably, the outer wall of the movable pulley 4065 is provided with a groove, and the groove is arranged along the circumference of the movable pulley 4065, so as to better cooperate with the string 4064, and play a role in limiting and preventing the slipping. The same principle applies to the fixed sheave 6 and the traction rope 3.

Referring to fig. 3 and 6, the towing assembly 7 includes a second connection block 704 fixed at a bottom end of the electric fan and a towing rope 3 connected between the second connection block 704 and the rocker 201, the towing rope 3 tows the second connection block 704 to move along with the rotation of the rocker 201, and the second connection block 704 may be replaced by another towing base.

The air diffusing assembly 8 is arranged in the second box body, an air diffusing opening 9 is formed in one side of the second box body, rollers 803 are fixedly arranged on two sides of the bottom end of the electric fan 802, clamping grooves 804 are movably connected to the outer walls of the rollers 803, the clamping grooves 804 on two sides are parallel to each other, and one end of each clamping groove is located in the air diffusing opening 9.

The traction assembly 7 further comprises a second spring 701, a pulley 702 is movably connected to the right side of the second spring 701, the left side of the second spring 701 is fixedly connected to the bottom wall of the second box body, the number of the structures of the second spring 701 and the second spring 701 is two, the structures of the two groups of the second spring 701 and the second spring 701 are symmetrically distributed by taking the vertical center line of the fan 802 as the center, a surrounding box is fixedly installed on the outer wall of the fan 802, the size of the surrounding box is smaller than that of the air diffusing port 9, the traction assembly 7 is driven to move integrally when the traction rope 3 is stretched, the two groups of structures enable the movement to be convenient and labor-saving, a movable rod 703 is movably connected to the outer wall of the pulley 702, and a second connecting block 704 is fixedly installed on the right side of the movable rod 703. The air dispersing assembly 8 comprises a motor 801, a fan 802 is fixedly mounted at one end of an output shaft of the motor 801, rollers 803 are respectively and fixedly mounted at two sides of the bottom end of the fan 802, and clamping grooves 804 are respectively and movably connected to the outer walls of the rollers 803 at two sides.

The first box body is fixed above the second box body through a fixed support, a bottom plate of the first box body is communicated with a top plate of the second box body through a pipeline, two fixed pulleys 6 are fixed on the inner wall of the top plate of the second box body, and the traction rope 3 penetrates through the pipeline and the outer wall of the traction rope is movably connected to the fixed pulleys 6.

When the air bag type constant pressure air bag is used, referring to fig. 1-8, a certain amount of air is pumped from a room through the work of the air pump 102, the air enters the air bag 103 from the air suction pipe 101, the air bag 103 sucks air and expands, the air bag 103 is placed in the constant pressure box 104, the volume of the air bag 103 changes along with the change of the carbon dioxide concentration, the change of the volume of the air bag 103 drives the first sliding block 105 to move and ascend, the rocker 201 is matched with the hinge base 204 and the movable support base 203 to fixedly rotate the rocker 201, the movable support base 203 is fixed in the first box body and serves as a pivot point for the rotation of the rocker 201, the rotation of the rocker 201 drives the stretching of the traction rope 3 and the movement of the push rod 202, the movement of the push rod 202 drives the clamping plate 401 and the affiliated structures of the clamping plate 401 to move together, the stretching of the traction rope 3 is matched with the fixed pulley 6 to drive the whole traction assembly 7 to move, and when the traction assembly 7 moves, the air diffusion assembly 8 moves, when the concentration of carbon dioxide in a room is ultrahigh, the volume of the air bag 103 is increased, so that the rocker 201 moves to enable the electric contact raised head 404 to be in contact with the electric contact groove 405, the alarm bell 5 and the motor 801 are electrified, the hook 402 enters the snap ring 406 and the movable pulley 4065 are matched with the structure to tension the string 4064, therefore, the seal formed by the snap ring 406 and the snap ring 4062 prevents the snap ring 402 from rebounding, the alarm bell 5 and the motor 801 are continuously electrified, at the moment, the air dispersing component 8 appears from the air dispersing port 9 under the movement of the traction component 7, the motor 801 works to drive the fan 802 to rotate, the alarm is finished only by pressing the button 4068, the string 4064 is loosened, the snap ring 402 is separated from the snap ring 406, and the alarm bell 5 is powered off, so that the alarm for the ultrahigh concentration is realized, and the air exhausting effect of the fan 802 is linked.

In summary, in the carbon dioxide concentration detecting instrument for the underground comprehensive pipe gallery, the air pump 102 works, a certain amount of air is pumped from the indoor space by the air suction pipe 101 to enter the air bag 103, because the air bag 103 is placed in the constant pressure box 104, and the pressure in the air bag 103 is greater than the air pressure of the constant pressure box 104 along with the change of the carbon dioxide concentration, the volume of the air bag 103 changes, the volume of the air bag 103 becomes large, the rocker assembly 2 is driven to move, the pull rope 3 is pulled, the movement of the rocker assembly 2 drives the electrical connection assembly 4 to move up and down, the pull rope 3 drives the pull assembly 7 to move through the fixed pulley 6, when the carbon dioxide concentration in the indoor space is ultrahigh, the volume of the air bag 103 becomes large, the rocker assembly 2 drives the electrical connection assembly 4 to move to realize the contact between the electrical contact protrusion 404 and the electrical contact groove 405, the alarm bell 5 is electrified with the motor 801, and the alarm, the traction assembly 7 at the moment drives the air dispersing assembly 8 to appear from the movable door 9, and the motor 801 rotates the electric fan 802 to rotate, so that the effect of alarming by an instrument with a certain concentration, reminding constructors in a pipe gallery and simultaneously linking the start of an emergency fan on site to deliver and exhaust air is achieved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.