Multi-channel gas holder for batch testing of gas monitors

Abstract

The utility model discloses a multichannel gas holder for batch test of gas monitors, which comprises a holder body, at least one support plate capable of placing the gas monitors is arranged in the holder body, holes corresponding to the support plates one by one are arranged on the holder body, a baffle plate for sealing is arranged at the hole, and the gas monitors are arranged on the baffle plate. The cabinet body is also provided with an air inlet pipeline and an exhaust pipeline, and the cabinet body is provided with a pressure gauge capable of monitoring the internal pressure of the cabinet body in real time; compared with the prior art, the gas monitoring cabinet has the beneficial effects that through the arrangement of the plurality of supporting plates, the simultaneous testing of the plurality of gas monitors can be realized, and meanwhile, the pressure in the cabinet body can be monitored in real time by arranging the pressure gauge on the cabinet body, so that the reliability of a testing result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of gas monitor detection, and particularly relates to a multi-channel gas cabinet for batch testing gas monitors. Background Art

[0002] A gas monitor is a detection instrument that must be equipped for personal safety in a working environment with hazardous gases. To ensure the detection effect, gas monitors are calibrated and tested before leaving the factory. Moreover, starting from the factory time, regardless of whether it is used or not, after several months, such as 3 months or 6 months, the accuracy of measuring gases may decrease. To ensure the detection effect, the gas monitor needs to be recalibrated. The existing gas monitor calibration devices on the market can only calibrate one gas monitor at a time, resulting in low calibration efficiency.

[0003] The patent with the publication number "CN214201362U" discloses a "calibration cover for a gas detector", which includes a calibration cover body. A gas storage cavity is opened at the central position inside the calibration cover body, and six groups of calibration cavities are arranged inside the calibration cover body outside the gas storage cavity. Filter cavities are arranged inside the calibration cover body outside the calibration cavities. This patent realizes the detection of multiple gas monitors at a time. However, during the use process, there is still a situation where the sealing structure at the place for placing and taking out the gas monitor is relatively complex, affecting the detection efficiency.

[0004] Therefore, this application proposes a multi-channel gas cabinet for batch testing gas monitors. Summary of the Invention

[0005] The purpose of the utility model is to provide a multi-channel gas cabinet for batch testing gas monitors, which realizes the batch detection of gas monitors and can also conveniently seal the cabinet body.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A multi-channel gas cabinet for batch testing gas monitors includes a cabinet body. At least one tray for placing a gas monitor is arranged inside the cabinet body. Openings corresponding to the trays one by one are opened on the cabinet body. Baffles for sealing are arranged at the openings. An air inlet pipeline and an exhaust pipeline are also arranged on the cabinet body. A pressure gauge for real-time monitoring of the internal pressure is arranged on the cabinet body.

[0008] Preferably, one side of the baffle is hinged to the cabinet body, and the other side of the baffle is connected to the cabinet body by bolts.

[0009] Preferably, a clamping plate is arranged on the side wall of the baffle, and a fixing plate is arranged on the cabinet body. The fixing plate and the clamping plate are connected by a pin shaft.

[0010] Preferably, there are two fixing plates, and a space for accommodating the clamping plate is formed between the two fixing plates.

[0011] Preferably, a handle is provided on the other side wall of the baffle corresponding to the clamping plate. A bolt is provided inside the handle, and a threaded hole for cooperating with the bolt is provided on the cabinet body.

[0012] Preferably, a groove is provided at a part of the cabinet body located outside the opening, and a sealing ring is installed in the groove.

[0013] Preferably, an intake valve is provided on the intake pipeline, and an exhaust valve and an exhaust fan are provided on the exhaust pipeline.

[0014] Preferably, an exhaust button for connecting the exhaust valve and the exhaust fan is provided on the cabinet body, and a forced closing button for controlling the intake valve is also provided on the cabinet body.

[0015] Preferably, handles are provided on both sides of the cabinet body, and a safety valve is provided on the cabinet body.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. Through the arrangement of multiple trays, simultaneous testing of multiple gas monitors can be achieved. At the same time, a pressure gauge is provided on the cabinet body to monitor the pressure inside the cabinet in real time, ensuring the reliability of the test results.

[0018] 2. The opening of the cabinet is sealed by the baffle, which is not only convenient to use but also has reliable sealing.

[0019] 3. Through the arrangement of the exhaust button and the forced closing button, air intake, exhaust or emergency stop operations can be conveniently carried out, ensuring the safety of the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the front view of the present utility model;

[0021] Figure 2 is Figure 1 the A-A cross-sectional view of

[0022] Figure 3 is Figure 2 the schematic diagram of the open state of the baffle in

[0023] The drawings are only for illustrative purposes and should not be construed as a limitation of this patent; in order to better illustrate this embodiment, some components in the drawings are omitted, enlarged or reduced, and do not represent the actual size of the product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. DETAILED DESCRIPTION OF THE EMBODIMENT

[0024] The present utility model will be further described below in conjunction with the accompanying drawings. Embodiment

[0025] As Figure 1 and Figure 2 shown, a multi-channel gas cabinet for batch testing gas monitors in this embodiment includes a cabinet body 1. There are three trays 5 for placing gas monitors arranged inside the cabinet body 1. There are three openings 18 corresponding to the trays 5 on the cabinet body 1. Baffles 4 for sealing are arranged at the openings 18. An air inlet pipeline 2 and an exhaust pipeline 3 are also arranged on the cabinet body 1. A pressure gauge 11 for real-time monitoring of the internal pressure is arranged on the cabinet body 1. Pressurize the cabinet body 1 through the air inlet pipeline 2 to realize the test of the gas monitor. After the test is completed, exhaust through the exhaust pipeline 3 so as to take out the tested gas monitor and put in the gas monitor to be tested.

[0026] One side of the baffle 4 is hinged to the cabinet body 1, and the other side of the baffle 4 is connected to the cabinet body 1 by bolts 42. A clamping plate 43 is arranged on the side wall of the baffle 4, and a fixing plate 16 is arranged on the cabinet body 1. The fixing plate 16 and the clamping plate 43 are connected by a pin shaft. In this way, the baffle 4 can be rotated to open the door, and the gas monitor can be stored and retrieved when the door is open, and the test is carried out after the door is closed. There are two fixing plates 16, and a space for accommodating the clamping plate 43 is formed between the two fixing plates 16 so that the baffle 4 can rotate smoothly. In some embodiments, two clamping plates 43 can also be arranged, and a space for accommodating the fixing plate 16 is formed between the two clamping plates 43.

[0027] As Figure 3 shown, a handle 41 is arranged on the other side wall of the baffle 4 corresponding to the clamping plate 43. A bolt 42 is arranged inside the handle 41, and a threaded hole cooperating with the bolt 42 is arranged on the cabinet body 1. A groove 19 is opened at the part of the cabinet body 1 outside the opening 18, and a sealing ring 6 is installed in the groove 19. After aligning the bolt 42 with the threaded hole on the cabinet body 1 and rotating the bolt 42, the baffle 4 can be pressed against the opening 18, and then the sealing ring 6 is tightened to realize the sealing of the cabinet body 1.

[0028] An intake valve 21 is arranged on the air inlet pipeline 2, and an exhaust valve 31 and an exhaust fan 32 are arranged on the exhaust pipeline 3.

[0029] An exhaust button 14 connecting the exhaust valve 31 and the exhaust fan 32 is arranged on the cabinet body 1. A forced closing button 15 for controlling the intake valve 21 is also arranged on the cabinet body 1. The intake valve 21, the exhaust valve 31, the exhaust fan 32, the exhaust button 14 and the forced closing button 15 are all connected to a PLC controller. Press the exhaust button 14, then the exhaust valve 31 and the exhaust fan 32 are opened to start exhausting. Press the forced closing button 15, then the intake valve 21 is cut off and the exhaust valve 31 and the exhaust fan 32 are opened simultaneously.

[0030] For convenient handling, handles 13 are provided on both sides of the cabinet body 1. To ensure the safety of refueling the cabinet body 1, a safety valve 12 is provided on the cabinet body 1. When the pressure is too high, the safety valve 12 opens for pressure relief of the cabinet body 1.

[0031] When the present utility model is in use, first rotate the bolt 42 to open the baffle 4, put the gas monitor to be tested into it, then close the baffle 4, open the intake valve 21, and start refueling the cabinet body 1. Monitor the pressure inside the cabinet body 1 through the pressure gauge 11. After the pressure reaches the standard, close the intake valve 21 and conduct the test. After the test is completed, open the exhaust valve 31 and the exhaust fan 32. After the gas is exhausted, open the baffle 4, take out the tested gas monitor and put in the gas monitor to be tested for the next batch of measurements. During the measurement process, if there is an unexpected situation, the exhaust button 14 or the forced shutdown button 15 can be pressed in time to quickly exhaust the gas inside the cabinet body 1.

[0032] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the present utility model. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model all belong to the protection scope of the technical solution of the present utility model.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for facilitating the description of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protection content of the present utility model.

[0034] If terms such as "first" and "second" are used in this article to limit components, those skilled in the art should be aware that the use of "first" and "second" is only for facilitating the description of the present utility model and simplifying the description. Without additional statements, the above terms have no special meanings.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features, but these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A multi-channel gas cabinet for batch testing of gas monitors, comprising a cabinet body, characterized in that: The cabinet is provided with at least one support plate for placing a gas monitor, the cabinet is provided with openings corresponding to the support plates, the openings are provided with baffles for sealing, the cabinet is also provided with an air intake pipeline and an exhaust pipeline, and the cabinet is provided with a pressure gauge for real-time monitoring of its internal pressure.

2. A multi-channel gas cabinet for batch testing of gas monitors according to claim 1, characterized in that: One side of the baffle is hinged to the cabinet body, and the other side of the baffle is connected to the cabinet body by bolts.

3. A multi-channel gas cabinet for batch testing of gas monitors according to claim 2, characterized in that: A clamping plate is arranged on the side wall of the baffle, a fixing plate is arranged on the cabinet, and the fixing plate and the clamping plate are connected via a pin shaft.

4. A multi-channel gas cabinet for batch testing of gas monitors according to claim 3, characterized in that: The fixing plate is provided at two locations, and a space for accommodating the card plate is formed between the two fixing plates.

5. A multi-channel gas cabinet for batch testing of gas monitors according to claim 2, characterized in that: A handle is provided on the other side wall of the baffle plate corresponding to the clamping plate, a bolt is provided in the handle, and a threaded hole matched with the bolt is provided on the cabinet body.

6. A multi-channel gas cabinet for batch testing of gas monitors according to claim 1, characterized in that: A groove is provided on the cabinet body at a position outside the opening, and a sealing ring is installed in the groove.

7. A multi-channel gas cabinet for batch testing of gas monitors according to claim 1, characterized in that: The air intake pipeline is provided with an air intake valve, and the exhaust pipeline is provided with an exhaust valve and an exhaust fan.

8. A multi-channel gas cabinet for batch testing of gas monitors according to claim 7, characterized in that: The cabinet is provided with an exhaust button connected to the exhaust valve and the exhaust fan, and the cabinet is also provided with a forced closing button for controlling the air intake valve.

9. A multi-channel gas cabinet for batch testing of gas monitors according to claim 1, characterized in that: Handles are arranged on both sides of the cabinet, and a safety valve is arranged on the cabinet.

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