Gas control device for calibration of automobile exhaust gas tester

Abstract

The utility model provides a gas control device for calibration of an automobile exhaust gas tester, which relates to the technical field of gas control devices and comprises a bottom plate, a storage box is fixedly mounted at the top of the bottom plate, a heating pipe is arranged in the storage box, and a top cover is arranged at the top of the storage box. Before the tester is calibrated, the valve is firstly opened to enable gas to enter the storage box from the gas inlet pipe, then the temperature of the gas is monitored under the action of the temperature sensor, the monitored data is transmitted to the detection device for detection, and when the temperature of the gas is detected to be lower, the valve is opened, and the valve is closed. When the gas is detected, the detection device transmits data to the first controller, the first controller controls the power supply and the heating pipe to start to work so as to heat the gas, and the gas can be always kept in a high-temperature environment through the structure and the method, so that the gas becomes more stable, and the calibration effect of the tester is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas control devices, in particular to a gas control device for calibrating an automobile exhaust gas tester. Background Art

[0002] With the continuous improvement of automobile emission standards, the monitoring and control of vehicle emission performance has become increasingly important. The gas control device for calibrating automobile emission gas testers is designed to ensure the accuracy and reliability of automobile emission testing.

[0003] Currently, when calibrating the tester, due to the simple structure and poor functionality of the control device, the gas emitted by the car may become unstable, which will seriously affect the calibration effect of the tester and is not convenient for the subsequent use of the tester. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that the gas emitted by automobiles is unstable, resulting in inaccurate calibration of the tester during the calibration process, and thus proposes a gas control device for calibrating an automobile exhaust gas tester.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a gas control device for calibrating an automobile exhaust gas tester, comprising a base plate, a storage box is fixedly installed on the top of the base plate, a heating tube is arranged inside the storage box, a top cover is arranged on the top of the storage box, two insertion grooves are opened on the top of the top cover, and a temperature sensor is fixedly inserted on the inner surface wall of one of the two insertion grooves.

[0006] Preferably, a detection device is fixedly mounted on the top of the top cover, and an input end of the detection device is electrically connected to an output end of the temperature sensor.

[0007] Preferably, a first controller is fixedly installed on the top of the top cover, and the input end of the first controller is electrically connected to the output end of the detection device, a power supply is fixedly installed on the top of the top cover, and the output end and input end of the power supply are fixedly connected with a heating tube, and the input end of the power supply is electrically connected to the output end of the first controller.

[0008] Preferably, a concentration sensor is fixedly inserted into the inner surface wall of another one of the two insertion slots, a comparator is fixedly installed on the top of the top cover, and the output end of the comparator is electrically connected to the output end of the concentration sensor.

[0009] Preferably, a second controller is fixedly mounted on the top of the top cover, and an input end of the second controller is electrically connected to an output end of the comparator, and a mounting groove is provided on the top of the top cover.

[0010] Preferably, an air intake pipe is fixedly inserted into the inner wall of the installation groove, a filter is provided inside the air intake pipe, a valve is provided inside the air intake pipe, and the input end of the valve is electrically connected to the output end of the second controller, and a third controller is fixedly installed on the top of the top cover, and the input end of the third controller is electrically connected to the output end of the detection device and the comparator.

[0011] Preferably, one side of the outer wall of the storage box is fixedly connected to a delivery pipe, the outer wall of the delivery pipe is fixedly sleeved with an air pump, one side of the outer wall of the air pump is fixedly connected to a connecting pipe, the outer wall of the connecting pipe is fixedly connected to a tester body, and one side of the outer wall of the tester body is fixedly connected to an air outlet pipe.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, before calibrating the tester, the valve is first opened to allow the gas to enter the storage box from the air inlet pipe, and then the temperature of the gas is monitored by the temperature sensor, and the monitored data is transmitted to the detection device for detection. When it is detected that the temperature of the gas is low, the detection device will transmit the data to the first controller, and the first controller will control the power supply and the heating tube to start working, so as to heat the gas. The above structure and method can keep the gas in a high temperature environment at all times, so that the gas becomes more stable and the calibration effect of the tester is improved.

[0014] 2. In the utility model, after the gas enters the storage box, the concentration of the gas inside is detected by the concentration sensor, and the detected data is transmitted to the comparator for detection. When the comparator detects that the concentration of the gas is too high, the data will be transmitted to the second controller, and the valve will be controlled by the second controller to close, so as to prevent the gas from continuing to enter the storage box. The above structure and method can keep the gas concentration inside the storage box at a stable value, avoiding the danger of excessive gas concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a main structural stereogram of a gas control device for calibrating an automobile exhaust gas tester;

[0016] Figure 2 The utility model provides a main structural disassembly diagram of a gas control device for calibrating an automobile exhaust gas tester;

[0017] Figure 3 The utility model provides a main structural part disassembled diagram of a gas control device for calibrating an automobile exhaust gas tester;

[0018] Figure 4 The utility model provides a main structural split stereogram of a gas control device for calibrating an automobile exhaust gas tester.

[0019] Legend:

[0020] 1. Bottom plate; 2. Storage box; 3. Heating tube; 4. Top cover; 5. Insertion slot; 6. Temperature sensor; 7. Detection device; 8. First controller; 9. Power supply; 10. Concentration sensor; 11. Comparator; 12. Second controller; 13. Installation slot; 14. Air inlet pipe; 15. Filter; 16. Valve; 17. Third controller; 18. Delivery pipe; 19. Air pump; 20. Connecting pipe; 21. Tester body; 22. Air outlet pipe. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1-4 As shown, the utility model provides a gas control device for calibrating an automobile exhaust gas tester, comprising a base plate 1, a storage box 2 is fixedly installed on the top of the base plate 1, a heating tube 3 is arranged inside the storage box 2, a top cover 4 is arranged on the top of the storage box 2, two insertion slots 5 are opened on the top of the top cover 4, a temperature sensor 6 is fixedly inserted on the inner surface wall of one of the two insertion slots 5, a detection device 7 is fixedly installed on the top of the top cover 4, and the input end of the detection device 7 is electrically connected to the output end of the temperature sensor 6, a first controller 8 is fixedly installed on the top of the top cover 4, and the input end of the first controller 8 is electrically connected to the output end of the detection device 7, a power supply 9 is fixedly installed on the top of the top cover 4, and the output end and input end of the power supply 9 are fixedly connected with the heating tube 3, the input end of the power supply 9 is electrically connected to the output end of the first controller 8, a valve 16 is arranged inside the intake pipe 14, and the input end of the valve 16 is electrically connected to the output end of the second controller 12.

[0024] The effect achieved by the entire embodiment 1 is that before calibrating the tester, the valve 16 is first opened to allow the gas to enter the storage box 2 from the air inlet pipe 14, and then the temperature of the gas is monitored by the temperature sensor 6, and the monitored data is transmitted to the detection device 7 for detection. When it is detected that the temperature of the gas is low, the detection device 7 will transmit the data to the first controller 8, and the first controller 8 will control the power supply 9 and the heating tube 3 to start working, thereby heating the gas. Through the above structure and method, the gas can always be kept in a high temperature environment, so that the gas becomes more stable and the calibration effect of the tester is improved.

[0025] Embodiment 2, as Figure 1-4 As shown, a concentration sensor 10 is fixedly inserted into the inner wall of the other of the two insertion slots 5, a comparator 11 is fixedly installed on the top of the top cover 4, and the output end of the comparator 11 is electrically connected to the output end of the concentration sensor 10, a second controller 12 is fixedly installed on the top of the top cover 4, and the input end of the second controller 12 is electrically connected to the output end of the comparator 11, a mounting slot 13 is opened on the top of the top cover 4, an air inlet pipe 14 is fixedly inserted into the inner wall of the mounting slot 13, a filter screen 15 is arranged inside the air inlet pipe 14, a third controller 17 is fixedly installed on the top of the top cover 4, and the input end of the third controller 17 is electrically connected to the detection device 7 and the output end of the comparator 11, a delivery pipe 18 is fixedly connected to one side of the outer wall of the storage box 2, an air pump 19 is fixedly sleeved on the outer wall of the delivery pipe 18, a connecting pipe 20 is fixedly connected to one side of the outer wall of the air pump 19, a tester body 21 is fixedly connected to the outer wall of the connecting pipe 20, and an outlet pipe 22 is fixedly connected to one side of the outer wall of the tester body 21.

[0026] The effect achieved by the entire embodiment 2 is that after the gas enters the storage box 2, the concentration of the gas inside is detected by the concentration sensor 10, and the detected data is transmitted to the comparator 11 for detection. When the comparator 11 detects that the concentration of the gas is too high, the data will be transmitted to the second controller 12, and the valve 16 will be controlled by the second controller 12 to close, thereby preventing the gas from continuing to enter the storage box 2. The above structure and method can keep the gas concentration inside the storage box 2 at a stable value to avoid the danger of excessive gas concentration.

[0027] Working principle: before calibrating the tester, first open the valve 16 to allow the gas to enter the storage box 2 from the air inlet pipe 14, then monitor the temperature of the gas under the action of the temperature sensor 6, and transmit the monitored data to the detection device 7 for detection. When it is detected that the temperature of the gas is low, the detection device 7 will transmit the data to the first controller 8, and the first controller 8 controls the power supply 9 and the heating tube 3 to start working, so as to heat the gas to make it more stable in a high temperature environment, and then detect the concentration of the gas inside it under the action of the concentration sensor 10, and transmit the detected data to the comparator 11 for detection. When the comparator 11 detects that the concentration of the gas is too high, it will transmit the data to the second controller 12, and the second controller 12 controls the valve 16 to close, preventing the gas from continuing to enter the storage box 2, so that the gas inside the storage box 2 is maintained at a stable value. When the gas concentration and characteristics inside the storage box 2 are relatively stable, the air pump 19 starts working under the action of the third controller 17, and the gas inside the storage box 2 is transported to the inside of the tester body 21 to calibrate it, and then the gas is discharged from the outlet pipe 22.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A gas control device for calibrating an automobile exhaust gas tester, characterized in that: The invention comprises a bottom plate (1), a storage box (2) is fixedly mounted on the top of the bottom plate (1), a heating pipe (3) is arranged inside the storage box (2), a top cover (4) is arranged on the top of the storage box (2), two insertion grooves (5) are provided on the top of the top cover (4), and a temperature sensor (6) is fixedly inserted into the inner surface wall of one of the two insertion grooves (5).

2. A gas control device for calibrating an automobile exhaust gas tester according to claim 1, characterized in that: A detection device (7) is fixedly mounted on the top of the top cover (4), and an input end of the detection device (7) is electrically connected to an output end of the temperature sensor (6).

3. A gas control device for calibrating an automobile exhaust gas tester according to claim 2, characterized in that: A first controller (8) is fixedly mounted on the top of the top cover (4), and an input end of the first controller (8) is electrically connected to an output end of the detection device (7). A power supply (9) is fixedly mounted on the top of the top cover (4), and a heating tube (3) is fixedly connected to the output end and input end of the power supply (9), and the input end of the power supply (9) is electrically connected to the output end of the first controller (8).

4. A gas control device for calibrating an automobile exhaust gas tester according to claim 3, characterized in that: A concentration sensor (10) is fixedly inserted into the inner surface wall of the other of the two insertion slots (5), a comparator (11) is fixedly installed on the top of the top cover (4), and an output end of the comparator (11) is electrically connected to an output end of the concentration sensor (10).

5. A gas control device for calibrating an automobile exhaust gas tester according to claim 4, characterized in that: A second controller (12) is fixedly mounted on the top of the top cover (4), and an input end of the second controller (12) is electrically connected to an output end of the comparator (11). A mounting groove (13) is provided on the top of the top cover (4).

6. A gas control device for calibrating an automobile exhaust gas tester according to claim 5, characterized in that: An air intake pipe (14) is fixedly inserted into the inner surface wall of the installation groove (13), a filter screen (15) is arranged inside the air intake pipe (14), a valve (16) is arranged inside the air intake pipe (14), and an input end of the valve (16) is electrically connected to an output end of the second controller (12), and a third controller (17) is fixedly installed on the top of the top cover (4), and an input end of the third controller (17) is electrically connected to an output end of the detection device (7) and a comparator (11).

7. A gas control device for calibrating an automobile exhaust gas tester according to claim 6, characterized in that: One side of the outer wall of the storage box (2) is fixedly connected to a delivery pipe (18), the outer wall of the delivery pipe (18) is fixedly sleeved with an air pump (19), one side of the outer wall of the air pump (19) is fixedly connected to a connecting pipe (20), the outer wall of the connecting pipe (20) is fixedly connected to a tester body (21), and one side of the outer wall of the tester body (21) is fixedly connected to an air outlet pipe (22).

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