Leak detection device for air suction pipe of compressor

Abstract

The utility model relates to the technical field of vehicle air conditioners, in particular to a leak hunting device for an air suction pipe of a compressor, which comprises a connecting pipe and an air outlet fixing cover plate, the outer wall of the air outlet fixing cover plate is fixedly connected with an anti-skid outer sheet, the outer wall of the anti-skid outer sheet is fixedly connected with a rubber gasket, and the inner wall of the air outlet fixing cover plate is communicated with an air outlet hard pipe. And an adjusting mechanism is arranged on the outer wall of the air outlet hard pipe. The first valve between the air outlet three-way hard pipes is closed, circulation between the air inlet three-way hard pipes is closed, air is injected from the air inlet three-way hard pipes through the air pump, and the air is communicated with an external barometer from the other outlet of the air outlet three-way hard pipes through the connecting pipe. Whether the connecting pipe leaks or not is monitored according to the value of the barometer installed on the air outlet three-way hard pipe, leakage detection work can be carried out without dismounting the two ends of the connecting pipe, and the use process is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and specifically relates to a leak detection device for a compressor suction pipe. Background Technique

[0002] A compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas and is part of a refrigeration system. The suction pipe therein has high airtightness requirements. If the airtightness of the suction pipe is insufficient, air leakage is likely to occur during the operation of the compressor.

[0003] For example, a leak detection device for a compressor suction pipe with the authorization announcement number of "CN219284602U" solves the problem that the existing leak detection device for a compressor suction pipe is prone to having leak detection blind spots. The above-mentioned device detects by sleeving a detection ring outside the suction pipe to be tested and moving along the suction pipe for detection, so that the whole suction pipe can be leak-detected. When the airflow sensor detects leaked gas, the warning light flashes and the voice announcer makes a loud noise. Considering the existing leak detection device for a compressor suction pipe, during the leak detection stage, both ends need to be disassembled and sealed by an air inflation bag before the air pipe can be leak-detected, resulting in inconvenient use during leak detection. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the existing leak detection device for a compressor suction pipe requires disassembly of the air pipe for leak detection, resulting in inconvenient use during leak detection, and to propose a leak detection device for a compressor suction pipe.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A leak detection device for a compressor suction pipe, including a connecting pipe and an air outlet fixed cover plate. The outer wall of the air outlet fixed cover plate is fixedly connected with an anti-slip outer piece. The outer wall of the anti-slip outer piece is fixedly connected with a rubber gasket. The inner wall of the air outlet fixed cover plate is communicated with an air outlet hard pipe. An adjusting mechanism is arranged on the outer wall of the air outlet hard pipe.

[0006] Preferably, the adjusting mechanism includes an air outlet three-way hard pipe. The end of the air outlet three-way hard pipe is communicated with the air outlet hard pipe. A first valve and a second valve are installed on the outer wall of the air outlet three-way hard pipe. The outer wall of the air outlet three-way hard pipe is movably connected with a rubber ring. The outer wall of the rubber ring is fixedly connected with a sealing cover.

[0007] Preferably, the end of the connecting pipe is communicated with the air outlet three-way hard pipe. A leak detection mechanism is connected to the outer wall of the connecting pipe.

[0008] Preferably, the leak detection mechanism includes a transparent cover. The inner wall of the transparent cover is movably connected with the connecting pipe. The outer wall of the transparent cover is threadedly connected with a transparent cylinder. The inner wall of the transparent cylinder is attached to a color test paper. The outer wall of the color test paper abuts against the transparent cover.

[0009] Preferably, the outer wall of the transparent cylinder is fixedly connected to the transparent handle.

[0010] Preferably, the end of the connecting pipe communicates with the intake three-way hard pipe, the outer wall of the intake three-way hard pipe communicates with the intake hard pipe, and the end of the intake hard pipe communicates with the intake fixed cover plate.

[0011] A leak detection device for a compressor intake pipe proposed by the present utility model has the beneficial effect that by closing the first valve between the outlet three-way hard pipe and the outlet hard pipe, the flow between the intake three-way hard pipe and the intake hard pipe is closed. Air is injected through the intake three-way hard pipe by an air pump, and the gas passes through the connecting pipe and exits from another outlet of the outlet three-way hard pipe to connect to an external pressure gauge. According to the value on the pressure gauge installed on the outlet three-way hard pipe, the purpose of monitoring whether the connecting pipe leaks can be achieved. There is no need to disassemble both ends of the connecting pipe to perform leak detection work, making the use process more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is Figure 1 the top-down sectional structural diagram in

[0014] Figure 3 is Figure 1 the front sectional structural diagram in

[0015] Figure 4 is Figure 2 the enlarged structural diagram at A in

[0016] Figure 5 is Figure 2 the enlarged structural diagram at B in

[0017] Figure 6 is Figure 1 the enlarged structural diagram of the transparent cylinder in

[0018] In the figure: 1. Connecting pipe, 2. Outlet fixed cover plate, 3. Anti-slip outer piece, 4. Rubber gasket, 5. Outlet hard pipe, 6. Adjusting mechanism, 601. Outlet three-way hard pipe, 602. First valve, 603. Second valve, 604. Rubber ring, 605. Sealing cover, 7. Leak detection mechanism, 701. Transparent cover, 702. Transparent cylinder, 703. Color test paper, 8. Transparent handle, 9. Intake three-way hard pipe, 10. Intake hard pipe, 11. Intake fixed cover plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described below with reference to the accompanying drawings:

[0020] Example 1:

[0021] Please refer to Figures 1-6 : In this embodiment, a leak detection device for the suction pipe of a compressor includes a connecting pipe 1 and an air outlet fixed cover plate 2. The outer wall of the air outlet fixed cover plate 2 is fixedly connected to an anti-slip outer piece 3, and the outer wall of the anti-slip outer piece 3 is fixedly connected to a rubber gasket 4. The inner wall of the air outlet fixed cover plate 2 is communicated with an air outlet hard pipe 5, and an adjusting mechanism 6 is provided on the outer wall of the air outlet hard pipe 5.

[0022] The adjusting mechanism 6 includes an air outlet three-way hard pipe 601. By controlling the first valve 602 and the second valve 603 on the air outlet three-way hard pipe 601, the flowing position of the air outlet three-way hard pipe 601 is adjusted. The end of the air outlet three-way hard pipe 601 is communicated with the air outlet hard pipe 5. The first valve 602 and the second valve 603 are installed on the outer wall of the air outlet three-way hard pipe 601. The outer wall of the air outlet three-way hard pipe 601 is movably connected to a rubber ring 604, and the outer wall of the rubber ring 604 is fixedly connected to a sealing cover 605;

[0023] Close the first valve 602 between the air outlet three-way hard pipe 601 and the air outlet hard pipe 5, and the flow between the intake three-way hard pipe 9 and the intake hard pipe 10 is closed. Inject gas from the intake three-way hard pipe 9 through an air pump, and the gas is connected to an external pressure gauge from another outlet of the air outlet three-way hard pipe 601 through the connecting pipe 1. According to the value on the pressure gauge installed on the air outlet three-way hard pipe 601, the purpose of monitoring whether the connecting pipe 1 leaks can be achieved. Without disassembling both ends of the connecting pipe 1, the leak detection work can also be carried out, and the use process is more convenient.

[0024] The end of the connecting pipe 1 is communicated with the air outlet three-way hard pipe 601, and a leak detection mechanism 7 is connected to the outer wall of the connecting pipe 1. The leak detection mechanism 7 includes a transparent cover 701. By contacting the color test paper 703 inside the transparent cylinder 702 with the leaking position outside the connecting pipe 1, the color dye on the surface of the color test paper 703 is shed and diffused, achieving the effect of accurate leak detection. The inner wall of the transparent cover 701 is movably connected to the connecting pipe 1, the outer wall of the transparent cover 701 is threadedly connected to the transparent cylinder 702, the inner wall of the transparent cylinder 702 is fitted with the color test paper 703, and the outer wall of the color test paper 703 abuts against the transparent cover 701.

[0025] Working principle:

[0026] Usage stage

[0027] The air outlet fixed cover plate 2 is threadedly and sealedly connected to the refrigeration system of the vehicle body, and the air inlet fixed cover plate 11 is threadedly and sealedly connected to the external compressor, so that the cold air produced by the refrigeration system can flow through the air outlet hard pipe 5 and the air outlet three-way hard pipe 601 on the air outlet fixed cover plate 2. The gas inside the air outlet fixed cover plate 2 flows through the connecting pipe 1, the air inlet three-way hard pipe 9, the air inlet hard pipe 10 and the air inlet fixed cover plate 11 until the gas inside the air inlet hard pipe 10 enters the external compressor, and the compressor compresses the low-temperature and low-pressure gas into high-pressure and high-temperature gas.

[0028] Simple leak detection stage

[0029] First, close the first valve 602 between the air outlet three-way hard pipe 601 and the air outlet hard pipe 5, and open the second valve 603 on the air outlet three-way hard pipe 601. Confirm that the sealing cover 605 on the air outlet three-way hard pipe 601 is opened. Similarly, operate in the same way between the air inlet three-way hard pipe 9 and the air inlet hard pipe 10 to close the flow between the air inlet three-way hard pipe 9 and the air inlet hard pipe 10. Inject gas through the air inlet three-way hard pipe 9 by an air pump, and the gas flows out of the air outlet three-way hard pipe 601 through the connecting pipe 1. According to the value on the pressure gauge installed on the air outlet three-way hard pipe 601, the purpose of monitoring whether the connecting pipe 1 leaks is achieved.

[0030] Embodiment 2:

[0031] Please refer to Figures 1-6 In this embodiment, the outer wall of the transparent cylinder 702 is fixedly connected to the transparent handle 8. The end of the connecting pipe 1 is communicated with the air inlet three-way hard pipe 9. The outer wall of the air inlet three-way hard pipe 9 is communicated with the air inlet hard pipe 10. The end of the air inlet hard pipe 10 is communicated with the air inlet fixed cover plate 11.

[0032] Working principle

[0033] Precise leak detection stage

[0034] In order to confirm the leakage location, clean water can be injected through the air inlet three-way hard pipe 9. The water flows from the air inlet three-way hard pipe 9 to the connecting pipe 1. At this time, the first valve 602 and the second valve 603 on the air outlet three-way hard pipe 601 are in the closed state. When the water inside the connecting pipe 1 cannot bear the water pressure, the water leaks out from the leakage location. Manually push the transparent cylinder 702 to move on the connecting pipe 1, so that the leaked water contacts the color test paper 703 inside the transparent cylinder 702. The pigment on the color test paper 703 quickly diffuses when contacting the water, achieving the confirmation of the leakage location of the connecting pipe 1, and the effect of being able to repair according to the location. After the leak detection is completed, it is necessary to confirm that the water inside the connecting pipe 1 is drained before using it again.

[0035] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A leak detection device for the suction pipe of a compressor, comprising a connecting pipe (1) and an air outlet fixed cover plate (2), characterized in that: The outer wall of the air outlet fixed cover plate (2) is fixedly connected to the anti-slip outer piece (3), the outer wall of the anti-slip outer piece (3) is fixedly connected to the rubber gasket (4), the inner wall of the air outlet fixed cover plate (2) is communicated with the air outlet hard pipe (5), and the outer wall of the air outlet hard pipe (5) is provided with an adjusting mechanism (6).

2. The leak detection device for the compressor suction pipe according to claim 1, wherein: The adjusting mechanism (6) includes an air outlet three-way hard pipe (601), the end of the air outlet three-way hard pipe (601) is communicated with the air outlet hard pipe (5), a first valve (602) and a second valve (603) are installed on the outer wall of the air outlet three-way hard pipe (601), the outer wall of the air outlet three-way hard pipe (601) is movably connected to a rubber ring (604), and the outer wall of the rubber ring (604) is fixedly connected to a sealing cover (605).

3. The leak detection device for the compressor suction pipe according to claim 1, characterized in that: The end of the connecting pipe (1) is communicated with the air outlet three-way hard pipe (601), and a leak detection mechanism (7) is connected to the outer wall of the connecting pipe (1).

4. The leak detection device for the compressor suction pipe according to claim 3, characterized in that: The leak detection mechanism (7) includes a transparent cover (701), the inner wall of the transparent cover (701) is movably connected to the connecting pipe (1), the outer wall of the transparent cover (701) is threadedly connected to a transparent cylinder (702), the inner wall of the transparent cylinder (702) is attached to a color test paper (703), and the outer wall of the color test paper (703) is abutted against the transparent cover (701).

5. The leak detection device for the compressor suction pipe according to claim 4, characterized in that: The outer wall of the transparent cylinder (702) is fixedly connected to a transparent handle (8).

6. The leak detection device for the compressor suction pipe according to claim 1, wherein: The end of the connecting pipe (1) is communicated with an air inlet three-way hard pipe (9), the outer wall of the air inlet three-way hard pipe (9) is communicated with an air inlet hard pipe (10), and the end of the air inlet hard pipe (10) is communicated with an air inlet fixed cover plate (11).

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