CN218725111U

CN218725111U - Gas sensor ventilation detection device

Info

Publication number: CN218725111U
Application number: CN202223008035.9U
Authority: CN
Inventors: 王昭
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-03-24
Anticipated expiration: 2032-11-11

Abstract

The utility model belongs to the technical field of the gas sensor test, especially, relate to a gas sensor detection device that ventilates. A gas sensor ventilation detection device comprises a supporting plate and a side plate, wherein a jacking cylinder is arranged on the lower end face of the supporting plate, a guide rod of the jacking cylinder vertically penetrates through the supporting plate in a sliding mode, a jacking plate is connected to the upper end of the guide rod of the jacking cylinder above the supporting plate, and a plurality of ventilation valves are vertically fixed on the upper end face of the jacking plate; the ventilation valve comprises a valve body, a gas storage groove, a gas inlet channel, a gas outlet channel, a gas inlet, a gas outlet and a sealing ring; the air inlet and the air outlet of each vent valve are respectively communicated with an air inlet assembly and an air outlet assembly, the air inlet assembly comprises an air inlet pipeline, an electromagnetic valve and an air inlet flowmeter, and the air outlet assembly comprises an air outlet pipeline and an air outlet flowmeter; sliding plates and limiting plates with limiting blocks are fixed on the side plates; the utility model discloses a can carry out the batch detection to gas sensor and the leakproofness of placing between the chamber of placing the board.

Description

Gas sensor ventilation detection device

Technical Field

The utility model belongs to the technical field of the gas sensor test, especially, relate to a gas sensor detection device that ventilates.

Background

In order to ensure the accuracy of the gas sensor and the integrity of the system, the gas sensor needs to be calibrated after aging, namely, calibration gas is filled into the sensing end of the gas sensor to obtain the output value of the gas sensor so as to calibrate and correct the gas sensor. In the calibration process of the existing gas sensor, the gas sensor is generally placed in a calibration box, and calibration gas is filled into the calibration box, so that the gas sensor is calibrated. However, in the batch calibration process, the calibration box needs to be opened and closed frequently to place the gas sensor, and the calibration gas needs to be filled and discharged, so that the calibration efficiency is low, and the method is not suitable for the calibration of the batch gas sensor.

Therefore, in the batch calibration process of the existing gas sensor, a plurality of gas sensors are generally placed on the placing plate 8 shown in the attached drawings 1 and 2, the placing cavity 81 penetrating through the placing plate 8 is formed in the placing plate 8, the shape of the placing cavity 81 is attached to the gas sensor, the sensing end of the gas sensor is placed downwards in the placing cavity 81, a sealing gasket is arranged at the bottom of the placing cavity 81, the lower end face of the gas sensor is sealed by the sealing gasket, the sensing end of the gas sensor penetrates through the lower end face of the placing plate 8, and at the moment, the sensing end of the gas sensor below the placing plate 8 and the upper side of the placing plate 8 are in a sealed state. When calibrating gas sensor, the outward flange department of terminal surface is provided with the sealed chamber under placing board 8, and each gas sensor's response end sets up at the sealed intracavity and seals up mutually with the space outside the sealed chamber, lets in calibration gas in order to calibrate each gas sensor to covering the sealed intracavity, because calibration gas majority is toxic gas, can avoid calibration gas escape outward through this kind of calibration mode, and calibration process convenient and fast.

However, the following problems may occur in this process: because use artifical with gas sensor install down place the chamber 81 on placing board 8 in, can have the mounted position inaccuracy or sealed the pad ageing lead to under the gas sensor terminal surface with place the chamber 81 can't realize sealedly, inject into the sealed intracavity to foretell promptly and mark gaseous back, mark gaseous can follow the gas sensor induction end place the chamber 81 below and pass the gap to place board 8 top and escape to cause the danger of marking gaseous escape, cause the healthy hidden danger of demarcation personnel. Therefore, before calibrating the plurality of gas sensors, each gas sensor needs to be detected with the sealing effect of the sheep lumen 81, so as to avoid the leakage of calibration gas in the calibration process.

SUMMERY OF THE UTILITY MODEL

For the technical problem who exists among the solution prior art, the application provides one kind can carry out the gas sensor detection device that ventilates that detects in batches to gas sensor and the leakproofness of placing between the chamber of placing the board.

In order to achieve the above object, the utility model provides a following technical scheme:

a gas sensor ventilation detection device comprises a support plate and side plates vertically and oppositely arranged on the support plate, wherein a jacking cylinder is vertically and fixedly connected to the lower end face of the support plate, a guide rod of the jacking cylinder vertically penetrates through the support plate in a sliding manner and extends to the upper side of the support plate, a jacking plate is horizontally and fixedly connected to the upper end of the guide rod of the jacking cylinder above the support plate, and a plurality of vent valves are vertically and fixedly arranged on the upper end face of the jacking plate; the vent valve comprises a valve body, a gas storage groove formed in the upper end face of the valve body, a gas inlet channel and a gas outlet channel which are formed in the bottom of the gas storage groove along the length direction of the valve body, a gas inlet and a gas outlet which are formed in the valve body and are communicated with the gas inlet channel and the gas outlet channel respectively, and an annular sealing ring which is embedded in the upper end face of the valve body outside the gas storage groove, wherein the valve body is vertically fixed on the upper end face of the jacking plate; the air inlet and the air outlet of each vent valve are respectively communicated with an air inlet component and an air outlet component, the air inlet component comprises an air inlet pipeline communicated with the air inlet of the vent valve, an electromagnetic valve arranged on the air inlet pipeline and used for controlling the on-off of the air inlet pipeline, and an air inlet flow meter arranged on the air inlet pipeline and communicated with the air inlet pipeline, and the air outlet component comprises an air outlet pipeline communicated with the outlet of the vent valve and an air outlet flow meter arranged on the air outlet pipeline and communicated with the air outlet pipeline; sliding plates are oppositely and horizontally fixed on the end surfaces of the inner sides of the two side plates above the vent valve, limiting plates are horizontally fixed on the upper end surfaces of the two side plates, the limiting plates are oppositely arranged with the sliding plates, and limiting blocks are arranged on the lower end surfaces of the limiting plates close to one end of the air inlet assembly; the controller is respectively electrically connected with and controls the electromagnetic valve, the air inlet flowmeter and the air outlet flowmeter.

Preferably, the plurality of vent valves are arranged in series in multiple groups, each group of vent valves arranged in series is respectively communicated with the air inlet and the air outlet through connecting pipelines, the front end of each group of vent valves arranged in series is communicated with the air inlet assembly, the rear end of each group of vent valves arranged in series is communicated with the air outlet assembly, each group of air inlet assembly is respectively communicated with the main air inlet pipeline, and each group of air outlet assembly is respectively communicated with the main air outlet pipeline.

Preferably, curb plate medial surface of stopper below is fixed with photoelectric sensor, the spacing cylinder of fixedly connected with on the curb plate is close to the one end terminal surface of the subassembly of giving vent to anger, between the guide arm of spacing cylinder orientation both sides board, photoelectric sensor and spacing cylinder are connected and controlled respectively to the controller, distance and the size phase-match of placing the board between spacing cylinder guide arm and the stopper medial surface.

Preferably, a guide rod of the limiting cylinder is horizontally and rotatably connected with a limiting wheel.

Preferably, a sliding groove is formed in the upper end face of the sliding plate along the length direction of the sliding plate, and a plurality of idler wheels are rotatably connected in the sliding groove along the length direction of the sliding groove.

Preferably, the inner diameter of the inlet channel is larger than the inner diameter of the outlet channel.

Preferably, the valve body is fixed on the upper end surface of the jacking plate through bolts.

Preferably, a guide sleeve is vertically embedded in the supporting plate, a guide rod penetrates through the guide sleeve in a sliding mode, and the upper end of the guide rod is fixedly connected to the lower end face of the jacking plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model can realize the limit of the placing plate in the horizontal direction and the vertical direction by arranging the sliding plate, the limiting plate and the limiting block; jacking the vent valve by arranging a jacking cylinder to enable a sealing ring of the vent valve to be in contact with the lower end face of the placing plate so as to seal the lower end face of the placing plate with the air inlet channel and the air outlet channel; through setting up breather valve, admit air subassembly, the subassembly of giving vent to anger, air intake flowmeter and the flowmeter of giving vent to anger, realize monitoring the gas flow of business turn over seal valve to confirm that the terminal surface is sealed target in place with placing the chamber bottom of placing of board under the gas sensor.

2. Through establishing ties the business turn over of a plurality of breather valves, gas outlet, reduced the complexity of whole device, reduce the quantity of subassembly and the subassembly of giving vent to anger of admitting air, when having reduced overall cost for it is more reliable and more stable during the detection.

3. By arranging the photoelectric sensor and the limiting cylinder and enabling the photoelectric sensor and the limiting cylinder to be linked through the controller, when the placing plate is pushed to be in place to trigger the photoelectric sensor, a signal is transmitted to the controller, the controller controls the limiting cylinder guide rod to extend out to limit the placing plate, and the automation level of the detection device is improved; through setting up spacing wheel, but the roll formula is realized placing the spacing of board, avoids the fish tail to place the board.

4. By arranging the idler wheels, the placing plate is more labor-saving and smooth when pushed, and meanwhile, the placing plate is prevented from being scratched; the inner diameter of the air inlet channel is larger than that of the air outlet channel, so that the retention time of the air in the air storage groove is prolonged, and the tightness can be detected more accurately; the valve body is fixed on the upper end face of the jacking plate through the bolts, so that the valve body is convenient to disassemble and overhaul.

Drawings

Fig. 1 is a first perspective structural view of a placement board.

Fig. 2 is a second perspective structure diagram of the placing board.

Fig. 3 is a schematic structural diagram of the present invention during operation.

Fig. 4 is a schematic view of the overall structure of the present invention.

Fig. 5 is a schematic overall side view of the present invention.

Fig. 6 is a schematic structural view of the present invention with the air intake and ventilation assembly removed.

Fig. 7 is a front view of the present invention with the air inlet and venting assembly removed.

Fig. 8 is an enlarged schematic view of a portion a of fig. 7.

Fig. 9 is a schematic structural view of the present invention without the air intake and venting assembly and the venting valve.

Fig. 10 is a schematic structural view of the vent valve of the present invention.

Fig. 11 is a schematic view of a half-section structure of the vent valve of the present invention.

In the figure: 11. a supporting plate 12, a side plate 21, a jacking cylinder 22, a jacking plate 23, a guide sleeve 24 and a guide rod,

3. the air valve comprises a vent valve body 31, a valve body 32, an air storage groove 33, an air inlet channel 34, an air outlet channel 35, an air inlet 36, an air outlet 37, a sealing ring 4, an air inlet component 41, an air inlet pipeline 42, an electromagnetic valve 43, an air inlet flow meter 44, a total air inlet pipeline 5, an air outlet component 51, an air outlet pipeline 52, an air outlet flow meter 53, a total air outlet pipeline 61, a sliding plate 62, a limiting plate 63, a limiting block 64, a roller 71, a photoelectric sensor 72, a limiting cylinder 73, a limiting wheel 8, a placing plate 81 and a placing cavity.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Examples

Referring to fig. 7, the ventilation detecting device for the gas sensor comprises a horizontally arranged support plate 11, wherein the support plate 11 can be fixed on a rack (not shown) through bolts, and two side plates 12 are vertically and fixedly connected to the upper end surface of the support plate 1 through bolts.

The vertical screw fixation of lower terminal surface at backup pad 11 has jacking cylinder 21, has seted up first through-hole in backup pad 11, and the guide arm of jacking cylinder 21 upwards wears to establish in this first through-hole and extends to backup pad 11 top, and the guide bar upper end of jacking cylinder 21 above backup pad 11 is connected with the jacking board 22 of level setting through the joint bolt fixed connection that floats. With the above structure, the jacking cylinder 21 can drive the jacking plate 22 to move up and down. In order to improve the connection strength between the jacking plate 22 and the guide rod of the jacking cylinder 21 and the accuracy during up-and-down movement, four second through holes are vertically formed in the supporting plate 11, guide sleeves 23 are vertically embedded in the second through holes, guide rods 24 matched with the inner diameters of the guide sleeves 23 are slidably arranged in the guide sleeves 23 in a penetrating manner, and the upper end faces of the guide rods 24 are fixed on the lower end faces of the jacking plate 22 through bolts.

A plurality of vent valves 3 are vertically fixed on the upper end face of the lifting plate 22, as shown in fig. 6, the number and arrangement of the vent valves 3 are matched with the placing cavities 81 on the placing plate 8, in this embodiment, 6 rows of vent valves 3 are provided, and each row is provided with 4 vent valves 3.

Referring to fig. 10 and 11, the vent valve 3 includes a valve body 31, a gas storage groove 32, a gas inlet channel 33, a gas outlet channel 34, a gas inlet 35, a gas outlet 36, and a sealing ring 37. The valve body 31 is of a cylindrical structure, and the outer diameter of the lower part of the valve body 31 is smaller than that of the upper part of the valve body for the convenience of installation. The upper end surface of the valve body 31 is provided with a gas storage groove 32, the bottom of the gas storage groove 32 is provided with a gas inlet channel 33 and a gas outlet channel 34 which are parallel to each other along the length direction of the valve body 3, the valve body 3 is oppositely provided with a gas inlet 35 and a gas outlet 36 which are respectively communicated with the gas inlet channel 33 and the gas outlet channel 34, the upper end surface of the valve body 3 outside the gas storage groove 32 is provided with an annular sealing groove, and a sealing ring 37 is embedded in the sealing groove.

Through the structure, the vent valve 3 moves upwards under the driving of the jacking cylinder 21, and the sealing ring 37 tightly pushes the lower end face of the placing plate at the outer edge of the lower opening of the placing cavity 81, so that the sealing of the external space of the lower opening of the placing cavity 81 is realized.

In order to improve the connection strength between the valve body 31 and the lifting plate 22, a fixing groove matched with the valve body 31 is formed in the lifting plate 22, in order to facilitate the installation, the disassembly and the maintenance of the valve body 31, a threaded hole is formed in the bottom of the valve body 31, and the valve body 31 is installed at the bottom of the fixing groove through a bolt.

In order to prolong the retention time of the introduced gas in the gas storage groove 32 to a certain extent, and further detect the tightness between the gas sensor and the placing cavity 81, the inner diameter of the gas inlet channel 33 is larger than that of the gas outlet channel 34 while the gas storage groove 32 is provided.

Referring to fig. 3, 4 and 5, the air inlet 35 and the air outlet 36 of each ventilation valve 3 are respectively communicated with the air inlet assembly 4 and the air outlet assembly 5 through pipe joints, the air inlet assembly 4 comprises an air inlet pipeline 41 communicated with the air inlet 35 of the ventilation valve 3, an electromagnetic valve 42 arranged on the air inlet pipeline 41 and used for controlling the on-off of the air inlet pipeline 41, and an air inlet flow meter 43 arranged on the air inlet pipeline 41 and communicated with the air inlet pipeline 41, and the air outlet assembly 5 comprises an air outlet pipeline 51 communicated with the outlet of the ventilation valve 3 and an air outlet flow meter 52 arranged on the air outlet pipeline 51 and communicated with the air outlet pipeline 51. The controller is electrically connected to and controls the solenoid valve 3, the inlet flowmeter 43, and the outlet flowmeter 52, respectively. Through the above structure, the detection gas enters the gas inlet channel 33 and the gas storage groove 32 of the vent valve 3 through the gas inlet pipeline 41, the electromagnetic valve 42 and the gas inlet flow meter 43, and is discharged into the gas recovery device through the gas outlet channel 34, the gas outlet pipeline 51 and the gas outlet flow meter 52. In the process, after the ventilation is stable, the values detected by the inlet flowmeter 43 and the outlet flowmeter 52 are transmitted to the controller for analysis, and if the values are inconsistent, the controller controls the electromagnetic valve 42 correspondingly connected to the controller to close and generate prompt information such as alarm and the like if the gas sensor is proved to leak gas from the placing cavity 81.

If each vent valve 3 is connected to the corresponding inlet module 4 and outlet module 5, the whole system is bulky and complicated, the stability of the device is not high, the pipeline is easy to bend, which results in unsmooth ventilation, the cost is also high, and because the probability of gas leakage between the gas sensor and the placing cavity 81 is low, in this embodiment, each row of vent valves 3 are connected in series, that is, the gas outlet 35 of the previous vent valve 3 is connected to the gas inlet of the next vent valve 3 through a pipe joint and a connecting pipeline (not shown in the figure), and so on, the gas inlet 35 of the front vent valve 3 is communicated with the inlet pipeline 41 of the inlet module 4 through a pipe joint, and the gas outlet 36 of the rearmost vent valve 3 is communicated with the outlet pipeline 51 of the outlet module 5 through a pipe joint. Therefore, only 6 sets of air inlet modules 4 and air outlet modules 5 are needed, the air inlet pipelines 41 of the air inlet modules 4 are respectively communicated with the main air inlet pipeline 44, and the air outlet pipelines 51 of the air outlet modules 5 are respectively communicated with the main air outlet pipeline 53. The electromagnetic valve 42 is connected in series to the air inlet pipeline 41 and controls the on/off of the air inlet pipeline 41, the air inlet flow meter 43 is connected in series to the air inlet pipeline 41 and monitors the gas flow in the air inlet pipeline 41, and the air outlet flow meter 52 is connected in series to the air outlet pipeline 51 and monitors the gas flow in the air outlet pipeline 51. In this embodiment, the controller may adopt a PLC controller, the power supply is electrically connected to each electromagnetic valve 42, each intake flowmeter 43, and each exhaust flowmeter 52 respectively to supply power thereto, each electromagnetic valve 42, each intake flowmeter 43, each exhaust flowmeter 52, and the alarm device are connected to the PLC controller respectively, each row of intake flowmeter 43 and exhaust flowmeter 52 monitors the gas flow value in real time after stable ventilation and transmits the gas flow value to the PLC controller, if the PLC controller determines that the values are not consistent, it is determined that there is gas leakage between the gas sensor and the placing cavity 81, and the corresponding electromagnetic valve 42 is controlled to be closed and the alarm device is controlled to alarm.

Referring to fig. 7 and 9, sliding plates 61 are fixed on the inner end surfaces of the two side plates 12 above the breather valve 3 by horizontal bolts, a limiting plate 62 is fixed on the upper end surfaces of the two side plates 12 by horizontal bolts, the limiting plate 62 is arranged opposite to the sliding plates 61, and a limiting block 63 is integrally formed with the limiting plate 62 on the lower end surface of one end of the limiting plate 62 close to the air intake assembly 4. Through this structure, can place board 8 on slide 61 to promote towards stopper 63 direction until butt stopper 63, alright start jacking cylinder 21 make ventilation valve 3's jacking make sealing ring 37 top of ventilation valve 3 tightly place board 8 lower terminal surface, place board 8 upper end top tightly terminal surface under the limiting plate 62 this moment.

A photoelectric sensor 71 is fixed on the end face of the inner side of the side plate 12 below the limiting block 63 through a bolt, a limiting cylinder 72 is fixedly connected on the end face of one end, close to the air outlet assembly 5, of the side plate 12 through a bolt, a guide rod of the limiting cylinder 72 faces between the two side plates 12, the PLC is respectively connected with and controls the photoelectric sensor 71, the limiting cylinder 72 and the jacking cylinder 21, the distance between the guide rod of the limiting cylinder 72 and the end face of the inner side of the limiting block 63 is matched with the size of the placing plate 8, and the placing plate 8 can be clamped between the limiting block 63 and the guide rod of the limiting cylinder 72.

The control principle and the connected mode of PLC controller and photoelectric sensor 71, spacing cylinder 72 and jacking cylinder 21 are prior art, and this is no longer repeated here, as long as can satisfy following process can: when the placing plate 8 is pushed to the limiting block 63 to trigger the photoelectric sensor 71, the photoelectric sensor 71 transmits a signal to the controller, the PLC controller controls the limiting cylinder 72 to stretch out to fix the placing plate 8, and then the PLC controller controls the jacking cylinder 21 to start.

Referring to fig. 8, in order to avoid scratching the placing plate 8, a limiting wheel 73 is horizontally and rotatably connected to a guide rod of the limiting cylinder 72. In order to facilitate pushing of the placing plate 8, a sliding groove is formed in the upper end face of the sliding plate 61 along the length direction of the sliding plate 61, and a plurality of rollers 64 are rotatably connected to the sliding groove in the length direction of the sliding groove.

The utility model discloses a use as follows:

in the initial state, the guide rod of the limit cylinder 72 retracts, and the guide rod of the jacking cylinder 21 retracts. Then the manual work will be filled with the board 8 of placing of gas sensor and place on gyro wheel 64 on slide 61 and promote to triggering photoelectric sensor 71 towards stopper 63 direction, the guide arm of the spacing cylinder 72 of controller control stretches out in order to fix and place board 8, and the guide arm of controller control jacking cylinder 21 stretches out for the sealing ring 37 top of breather valve 3 tightly places board 8 lower terminal surface. After that, the controller controls the electromagnetic valve 42 to open to introduce gas into the gas inlet pipeline 41, the gas passes through the gas inlet assembly 4, the vent valve 3 and the gas outlet assembly 5 to the gas recovery device, in the process, after the gas is in a stable state, the gas inlet flowmeter 43 and the gas outlet flowmeter 52 monitor the numerical values and transmit the numerical values to the controller, the controller judges that the numerical values are consistent, no gas is leaked between the gas sensor and the placing cavity 81, otherwise, if the numerical values are inconsistent, the gas is leaked between the gas sensor and the placing cavity 81. The controller controls the alarm device to alarm to remind an operator to check.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a gas sensor detection device that ventilates, includes the backup pad and is in the curb plate of vertical relative setting in the backup pad, its characterized in that: a jacking cylinder is vertically and fixedly connected to the lower end face of the supporting plate, a guide rod of the jacking cylinder vertically penetrates through the supporting plate in a sliding mode and extends to the upper portion of the supporting plate, a jacking plate is horizontally and fixedly connected to the upper end of the guide rod of the jacking cylinder above the supporting plate, and a plurality of vent valves are vertically and fixedly arranged on the upper end face of the jacking plate;

the vent valve comprises a valve body, a gas storage groove formed in the upper end face of the valve body, a gas inlet channel and a gas outlet channel which are formed in the bottom of the gas storage groove along the length direction of the valve body, a gas inlet and a gas outlet which are formed in the valve body and are communicated with the gas inlet channel and the gas outlet channel respectively, and an annular sealing ring which is embedded in the upper end face of the valve body outside the gas storage groove, wherein the valve body is vertically fixed on the upper end face of the jacking plate;

the air inlet and the air outlet of each vent valve are respectively communicated with an air inlet component and an air outlet component, the air inlet component comprises an air inlet pipeline communicated with the air inlet of the vent valve, an electromagnetic valve arranged on the air inlet pipeline and used for controlling the on-off of the air inlet pipeline, and an air inlet flow meter arranged on the air inlet pipeline and communicated with the air inlet pipeline, and the air outlet component comprises an air outlet pipeline communicated with the outlet of the vent valve and an air outlet flow meter arranged on the air outlet pipeline and communicated with the air outlet pipeline;

sliding plates are oppositely and horizontally fixed on the end surfaces of the inner sides of the two side plates above the vent valve, limiting plates are horizontally fixed on the upper end surfaces of the two side plates, the limiting plates are oppositely arranged with the sliding plates, and limiting blocks are arranged on the lower end surfaces of the limiting plates, which are close to one end of the air inlet assembly; the controller is respectively electrically connected with and controls the electromagnetic valve, the air inlet flowmeter and the air outlet flowmeter.

2. The gas sensor ventilation detection device of claim 1, wherein: the air valves are arranged in a plurality of groups in series, the air valves arranged in series in each group are respectively communicated with an air inlet and an air outlet through connecting pipelines, the front ends of the groups in series are communicated with air inlet components of the air valves, the rear ends of the groups in series are communicated with air outlet components of the air valves, the air inlet components of the groups are respectively communicated with a total air inlet pipeline, and the air outlet components of the groups are respectively communicated with a total air outlet pipeline.

3. The gas sensor ventilation detection device of claim 1, wherein: curb plate medial surface of stopper below is fixed with photoelectric sensor, the spacing cylinder of fixedly connected with on the curb plate is close to the one end terminal surface of the subassembly of giving vent to anger, the guide arm of spacing cylinder is towards between the board of both sides, and photoelectric sensor and spacing cylinder are connected and controlled respectively to the controller, distance between spacing cylinder guide arm and the stopper medial surface and the size phase-match of placing plate.

4. The gas sensor ventilation detection device of claim 3, wherein: and a guide rod of the limiting cylinder is horizontally and rotatably connected with a limiting wheel.

5. The gas sensor ventilation detection device of claim 1, wherein: the upper end surface of the sliding plate is provided with a sliding groove along the length direction of the sliding plate, and a plurality of idler wheels are rotatably connected in the sliding groove along the length direction of the sliding groove.

6. The gas sensor ventilation detection device of claim 1, wherein: the inner diameter of the air inlet channel is larger than that of the air outlet channel.

7. The gas sensor ventilation detection device of claim 1, wherein: and the valve body is fixed on the upper end surface of the jacking plate through a bolt.

8. The gas sensor ventilation detection device of claim 1, wherein: the supporting plate is vertically embedded with a guide sleeve, a guide rod penetrates through the guide sleeve in a sliding mode, and the upper end of the guide rod is fixedly connected to the lower end face of the jacking plate.