Carbon monoxide sensor calibration device

Abstract

The utility model relates to the field of sensor calibration, and discloses a carbon monoxide sensor calibration device, which comprises a placement seat, a calibration mechanism and a calibration mechanism, the calibration mechanism comprises a transparent cover plate, a vertical pipe, a main pipe, a branch pipe, a power motor, a turntable, a positioning rod, an electric telescopic rod, a push plate, an exhaust pipe and a butt joint pipe; the vertical pipe is rotationally installed on the transparent cover plate, the main pipe is fixedly installed on the vertical pipe, the branch pipe is fixedly installed on the main pipe, and the power motor is fixedly installed in the containing base. The carbon monoxide sensor has the following advantages and effects that carbon monoxide gas is uniformly dispersed into the closed space through the rotating vertical pipe, the main pipe and the branch pipes, so that rapid and uniform ventilation is realized, the carbon monoxide sensor is fully contacted with the carbon monoxide gas and achieves stable response, the carbon monoxide gas in the closed space is conveniently and rapidly extracted, and the service life of the carbon monoxide sensor is prolonged. The carbon monoxide sensor calibration efficiency is ensured.

Description

Technical Field

[0001] This utility model relates to the field of sensor calibration technology, and in particular to a carbon monoxide sensor calibration device. Background Technology

[0002] Carbon monoxide sensors, as the main instruments for monitoring carbon monoxide gas concentration in coal mines, play an important role in early fire warning and are currently the most mature and widely used fire early warning and monitoring method.

[0003] In existing technologies, carbon monoxide sensor calibration first requires placing the sensor in a sealed detection space and introducing a certain concentration of carbon monoxide to allow the sensor to fully contact the standard gas and achieve a stable response. After the sensor output stabilizes, the signal value is read and compared with the actual concentration of the standard gas. Based on the deviation, the sensor's range is adjusted to ensure that the sensor's output concentration matches the actual concentration of the standard gas. However, current methods cannot quickly and uniformly introduce carbon monoxide into the detection space, and the carbon monoxide cannot be quickly removed from the detection space after the sensor signal value is read. This makes it inconvenient to quickly remove the carbon monoxide sensor, affecting the calibration efficiency. Therefore, a carbon monoxide sensor calibration device needs to be designed to solve these problems.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a carbon monoxide sensor calibration device to solve the above-mentioned problems.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a carbon monoxide sensor calibration device, comprising:

[0007] A placement base, on which a calibration mechanism is provided;

[0008] The calibration mechanism includes a transparent cover, a vertical pipe, a main pipe, branch pipes, a power motor, a turntable, a positioning rod, an electric telescopic rod, a push plate, an air extraction pipe, and a connecting pipe.

[0009] The vertical pipe is rotatably mounted on the transparent cover plate, the main pipe is fixedly mounted on the vertical pipe, the branch pipe is fixedly mounted on the main pipe, the power motor is fixedly mounted in the placement seat, the output end of the power motor is fixedly connected to the turntable, the positioning rod is fixedly connected to the outside of the vertical pipe, the positioning rod is engaged with the turntable, the telescopic end of the electric telescopic rod is fixedly connected to the push plate, the air extraction pipe is fixedly mounted on the push plate, and the connecting pipe is fixedly mounted on the vertical pipe.

[0010] The present invention is further configured as follows: the calibration mechanism includes a stand, a synchronous hydraulic cylinder, a sealing gasket, a support frame, a rigid pipe, a connecting hose, a solenoid valve one, a solenoid valve two, and a solenoid valve three. The stand is fixedly installed on the top of the placement seat, the synchronous hydraulic cylinder is fixedly installed on the top of the stand, and the hydraulic rod of the synchronous hydraulic cylinder is fixedly connected to the transparent cover plate. The sealing gasket is fixedly installed on the bottom of the transparent cover plate and is in sealing contact with the placement seat. The support frame is fixedly installed on the top of the transparent cover plate and is fixedly connected to the rigid pipe. The top of the rigid pipe is fixedly connected to the connecting hose. The solenoid valve one, solenoid valve two, and solenoid valve three are respectively installed on the vertical pipe, the air extraction pipe, and the connecting pipe.

[0011] A further feature of this invention is that a plurality of carrier boxes are fixedly disposed on the top of the placement base, and a carbon monoxide sensor is placed inside the carrier box.

[0012] By adopting the above technical solution, it is convenient to place the carbon monoxide sensor.

[0013] A further feature of this invention is that an air inlet pipe is fixedly installed on the transparent cover plate, and a one-way solenoid valve is installed on the air inlet pipe.

[0014] A further feature of this invention is that the bottom of the vertical tube is closed.

[0015] A further feature of this invention is that two positioning holes are provided on the top of the turntable, and the positioning rod is engaged with the positioning holes.

[0016] By adopting the above technical solution, it is convenient to connect the turntable to the vertical pipe.

[0017] A further feature of this invention is that a sealing gasket is fixedly disposed inside the rigid tube, and the vertical tube is in sealed contact with the sealing gasket.

[0018] A further feature of this invention is that a sealing gasket is fixedly installed inside the connecting pipe, the air extraction pipe is located above the connecting pipe, the air extraction pipe is slidably installed on the support frame, and an air extraction hose is fixedly installed at the top of the air extraction pipe.

[0019] The beneficial effects of this utility model are:

[0020] This invention, through its calibration mechanism, allows the vertical pipe to connect with the turntable when carbon monoxide gas is introduced. The carbon monoxide gas is then evenly dispersed into the enclosed space through the rotating vertical pipe, main pipe, and branch pipes, achieving rapid and uniform ventilation. This ensures that the carbon monoxide sensor fully contacts the carbon monoxide gas and achieves a stable response. It also facilitates the rapid removal of carbon monoxide gas from the enclosed space, making it easy to quickly remove the carbon monoxide sensor and ensuring efficient calibration. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a carbon monoxide sensor calibration device proposed in this utility model.

[0023] Figure 2 This is a cross-sectional structural schematic diagram of a carbon monoxide sensor calibration device proposed in this utility model.

[0024] Figure 3 yes Figure 1 A schematic diagram of part A in the diagram.

[0025] Figure 4 yes Figure 2 A schematic diagram of part B in the diagram.

[0026] In the diagram, 1. Placement seat; 2. Stand; 3. Synchronous hydraulic cylinder; 4. Transparent cover; 5. Sealing gasket; 6. Carrier box; 7. Carbon monoxide sensor; 8. Vertical pipe; 9. Main pipe; 10. Branch pipe; 11. Power motor; 12. Turntable; 13. Positioning rod; 14. Support frame; 15. Rigid pipe; 16. Electric telescopic rod; 17. Push plate; 18. Air extraction pipe; 19. Connecting pipe; 20. Connecting hose; 21. Solenoid valve one; 22. Solenoid valve two; 23. Solenoid valve three. Detailed Implementation

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0028] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a carbon monoxide sensor calibration device, comprising:

[0030] Placement seat 1 is equipped with a calibration mechanism. Through the calibration mechanism, carbon monoxide gas can be quickly and evenly introduced into the detection space of the transparent cover plate 4. After reading the signal value of the sensor, the carbon monoxide in the detection space of the transparent cover plate 4 can be quickly removed, so as to facilitate the quick removal of the carbon monoxide sensor 7 and ensure the calibration efficiency of the carbon monoxide sensor 7.

[0031] The calibration mechanism includes a transparent cover plate 4, a vertical pipe 8, a main pipe 9, a branch pipe 10, a power motor 11, a turntable 12, a positioning rod 13, an electric telescopic rod 16, a push plate 17, an air extraction pipe 18, and a connecting pipe 19.

[0032] The vertical pipe 8 is rotatably mounted on the transparent cover plate 4, the main pipe 9 is fixedly mounted on the vertical pipe 8, the branch pipe 10 is fixedly mounted on the main pipe 9, the power motor 11 is fixedly mounted in the placement seat 1, the output end of the power motor 11 is fixedly connected to the turntable 12, the positioning rod 13 is fixedly connected to the outside of the vertical pipe 8, the positioning rod 13 is engaged with the turntable 12, the telescopic end of the electric telescopic rod 16 is fixedly connected to the push plate 17, the air extraction pipe 18 is fixedly mounted on the push plate 17, and the connecting pipe 19 is fixedly mounted on the vertical pipe 8.

[0033] Through the aforementioned calibration mechanism, when carbon monoxide gas is introduced, the vertical pipe 8 can be connected to the turntable 12, and then the vertical pipe 8, main pipe 9, and branch pipe 10 can be rotated. In this way, the carbon monoxide gas is evenly dispersed into the enclosed space through the vertical pipe 8, main pipe 9, and branch pipe 10, achieving rapid and uniform ventilation, allowing the carbon monoxide sensor 7 to fully contact the carbon monoxide gas and achieve a stable response, thereby improving working efficiency.

[0034] Specifically, the calibration mechanism also includes a stand 2, a synchronous hydraulic cylinder 3, a sealing gasket 5, a support 14, a rigid pipe 15, a connecting hose 20, a solenoid valve 1 21, a solenoid valve 22, and a solenoid valve 3 23. The stand 2 is fixedly installed on the top of the placement seat 1. The synchronous hydraulic cylinder 3 is fixedly installed on the top of the stand 2. The hydraulic rod of the synchronous hydraulic cylinder 3 is fixedly connected to the transparent cover plate 4. The sealing gasket 5 is fixedly installed on the bottom of the transparent cover plate 4. The sealing gasket 5 is in sealing contact with the placement seat 1. The support 14 is fixedly installed on the top of the transparent cover plate 4. The support 14 is fixedly connected to the rigid pipe 15. The top of the rigid pipe 15 is fixedly connected to the connecting hose 20. It should be noted that the connecting hose 20 is connected to an external carbon monoxide supply pipe for introducing carbon monoxide gas.

[0035] Solenoid valve 1 21, solenoid valve 22 and solenoid valve 3 23 are respectively installed on the vertical pipe 8, the air extraction pipe 18 and the connecting pipe 19.

[0036] The aforementioned calibration mechanism allows for the rapid extraction of carbon monoxide gas, facilitating the quick removal of the carbon monoxide sensor 7 and ensuring its calibration efficiency.

[0037] Specifically, multiple carrier boxes 6 are fixedly installed on the top of the placement seat 1. Carbon monoxide sensors 7 are placed in the carrier boxes 6. It should be noted that a standard carbon monoxide sensor 7 can be placed in one carrier box 6 as a control group, and the carbon monoxide sensors 7 to be tested and calibrated can be placed in the other carrier boxes 6, which facilitates the comparison process.

[0038] Specifically, an air inlet pipe is fixedly installed on the transparent cover plate 4, and a one-way solenoid valve is installed on the air inlet pipe. It should be noted that when the carbon monoxide inside the transparent cover plate 4 is removed later, the one-way solenoid valve can be opened to allow outside air to enter the transparent cover plate 4.

[0039] Specifically, the bottom of the vertical tube 8 is enclosed. It should be noted that the vertical tube 8 is restricted, and both the vertical tube 8 and the output end of the power motor 11 rotate through sealed bearings to ensure the sealing of the rotation.

[0040] Specifically, two positioning holes are provided on the top of the turntable 12, and the positioning rod 13 is engaged with the positioning holes. It should be noted that this facilitates the docking of the turntable 12 with the vertical tube 8.

[0041] Specifically, a sealing gasket is fixedly installed inside the rigid pipe 15, and the vertical pipe 8 is in sealed contact with the sealing gasket. A second sealing gasket is fixedly installed inside the connecting pipe 19. The suction pipe 18 is located above the connecting pipe 19 and is slidably installed on the support frame 14. A suction hose is fixedly installed at the top of the suction pipe 18. It should be noted that this can ensure the sealing between the vertical pipe 8 and the rigid pipe 15, and also ensure the sealing at the connection after the suction pipe 18 is inserted into the connecting pipe 19. The suction hose is connected to an external suction device to remove carbon monoxide gas from the transparent cover plate 4.

[0042] Working principle:

[0043] S1: Place the carbon monoxide sensor 7 to be calibrated into the carrier box 6 on top of the placement seat 1. The carrier box 6 serves to position and support the sensor, facilitating subsequent operations. Activate the synchronous hydraulic cylinder 3 on top of the stand 2. Its hydraulic rod pushes the transparent cover 4 downward. The sealing gasket 5 at the bottom of the transparent cover 4 fits tightly with the placement seat 1, forming a closed detection space to prevent carbon monoxide gas leakage.

[0044] S2: Open the solenoid valve 21 of the vertical pipe 8 on the transparent cover plate 4. Carbon monoxide gas enters the closed space through the branch pipe 10. At the same time, start the power motor 11 in the placement seat 1. Its output end drives the turntable 12 to rotate. Since the positioning rod 13 is fixedly connected to the outside of the vertical pipe 8 and is engaged with the positioning hole on the turntable 12, the rotation of the turntable 12 will drive the positioning rod 13 to rotate, thereby causing the vertical pipe 8 to rotate.

[0045] S3: When the vertical pipe 8 rotates, the main pipe 9 and branch pipe 10 fixed on it also rotate. Carbon monoxide gas is evenly dispersed into the enclosed space through the vertical pipe 8, main pipe 9 and branch pipe 10 to achieve rapid and uniform ventilation, allowing the carbon monoxide sensor 7 to fully contact the carbon monoxide gas and achieve a stable response. The solenoid valve 21 is closed to read the signal value output by the carbon monoxide sensor 7 and compare it with the actual concentration of the standard gas to determine whether the range of the carbon monoxide sensor 7 needs to be adjusted. During this process, the operator can obtain the signal value output by the carbon monoxide sensor 7 wirelessly.

[0046] S4: After the reading is completed, start the electric telescopic rod 16. Its telescopic end pushes the push plate 17 downward. The suction pipe 18 fixed on the push plate 17 moves downward accordingly. When the suction pipe 18 connects with the connecting pipe 19 on the vertical pipe 8, open the solenoid valve 22 and the solenoid valve 33. At this time, the carbon monoxide gas in the closed space can be extracted by the external suction equipment. After the suction is completed, close the solenoid valve 22 and the solenoid valve 33. Start the synchronous hydraulic cylinder 3 to raise the transparent cover plate 4, release the closed space, and the operator can easily take out the calibrated carbon monoxide sensor 7 from the carrier box 6 for subsequent processing.

[0047] The carbon monoxide sensor calibration device provided by this utility model has been described in detail above. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A carbon monoxide sensor calibration device, characterized by, The utility model relates to a carbon monoxide sensor calibration device, including: The calibration mechanism includes transparent cover plate (4), stand pipe (8), main pipe (9), branch pipe (10), power motor (11), rotating disc (12), positioning rod (13), electric telescopic rod (16), push plate (17), air extraction pipe (18) and butt joint pipe (19); The stand pipe (8) is rotatably installed on the transparent cover plate (4), the main pipe (9) is fixedly installed on the stand pipe (8), the branch pipe (10) is fixedly installed on the main pipe (9), the power motor (11) is fixedly installed in the placing seat (1), the output end of the power motor (11) is fixedly connected with the rotating disc (12), the positioning rod (13) is fixedly connected with the outside of the stand pipe (8), the positioning rod (13) is clamped with the rotating disc (12), the telescopic end of the electric telescopic rod (16) is fixedly connected with the push plate (17), the air extraction pipe (18) is fixedly installed on the push plate (17), and the butt joint pipe (19) is fixedly installed on the stand pipe (8). The calibration mechanism further includes stand (2), synchronous hydraulic cylinder (3), sealing washer (5), support frame (14), hard pipe (15), connecting hose (20), electromagnetic valve one (21), electromagnetic valve two (22) and electromagnetic valve three (23), the stand (2) is fixedly installed on the top of the placing seat (1), the synchronous hydraulic cylinder (3) is fixedly installed on the top of the stand (2), the hydraulic rod of the synchronous hydraulic cylinder (3) is fixedly connected with the transparent cover plate (4), the sealing washer (5) is fixedly installed on the bottom of the transparent cover plate (4), the sealing washer (5) is in sealing contact with the placing seat (1), the support frame (14) is fixedly installed on the top of the transparent cover plate (4), the support frame (14) is fixedly connected with the hard pipe (15), the top of the hard pipe (15) is fixedly connected with the connecting hose (20), the electromagnetic valve one (21), the electromagnetic valve two (22) and the electromagnetic valve three (23) are installed on the stand pipe (8), the air extraction pipe (18) and the butt joint pipe (19) respectively.

2. A carbon monoxide sensor calibration device according to claim 1, wherein, A plurality of bearing boxes (6) are fixedly arranged on the top of the placing seat (1), and a carbon monoxide sensor (7) is arranged in each bearing box (6).

3. A carbon monoxide sensor calibration device according to claim 1, wherein, A gas inlet pipe is fixedly arranged on the transparent cover plate (4), and a one-way electromagnetic valve is arranged on the gas inlet pipe.

4. The carbon monoxide sensor calibration device of claim 1, wherein, The bottom of the stand pipe (8) is closed.

5. The carbon monoxide sensor calibration device of claim 1, wherein, Two positioning holes are formed in the top of the rotating disc (12), and the positioning rod (13) is clamped with the positioning holes.

6. The carbon monoxide sensor calibration device of claim 1, wherein, A sealing rubber gasket one is fixedly arranged in the hard pipe (15), and the stand pipe (8) is in sealing contact with the sealing rubber gasket one.

7. A carbon monoxide sensor calibration device according to claim 2, wherein A sealing rubber gasket two is fixedly arranged in the butt joint pipe (19), the air extraction pipe (18) is located above the butt joint pipe (19), the air extraction pipe (18) is slidably installed on the support frame (14), and an air extraction hose is fixedly arranged on the top of the air extraction pipe (18).

8. The carbon monoxide sensor calibration device of claim 2, wherein, ​

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