Multi-station air tightness test bench

Abstract

The utility model discloses a multi-station air tightness test bench, relates to the technical field of air tightness test benches, and solves the problem that the type of workpieces tested by one machine is relatively single in the air tightness test process in the prior art. A multi-station air tightness test board comprises a support, a water storage barrel is arranged in the support, a workbench is arranged on one side of the support, a plurality of push-pull type air valves are evenly arranged on the workbench, and one end of each push-pull type air valve is connected with an air pump connecting pipe through an air inlet pipe; the other end of the push-pull type air valve is connected with an air outlet pipe, and a sealing connecting device is arranged at the end of the air outlet pipe. The device has the beneficial effects that the device can correspond to a plurality of types of tested pieces, so that the testing efficiency is greatly improved, and the loss of labor force is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness test benches, in particular to a multi-station air tightness test bench. Background Art

[0002] In industrial production, some products require perfect airtightness, so airtightness testing is used. The airtightness test can be done by directly soaking in water or indirectly soaking in water. When conducting an airtightness test, if you choose the direct soaking method, it is also called the traditional airtightness test method. This is to use the water depth and soaking time to correspond to each level of waterproof level test, so as to judge the amount of water ingress. This test method can effectively clarify the airtightness of the equipment. However, this method is relatively inefficient, and the data cannot be quantified. In addition, it is not suitable for full inspection of some production lines.

[0003] The current air tightness test bench structure is generally as described in a new type of air tightness test bench disclosed in the patent application number "CN201821465900.3", including a box containing a certain depth of liquid, a test device for testing the sealing of the joint is arranged in the box, and a swing device is connected to the test device. The utility model realizes the containment of liquid by setting a box, and realizes the sealing of the joint to be tested by setting upper and lower pressure plates, so as to inject gas with a certain pressure into the joint to be tested, and realizes the rotation of the joint to be tested by setting a rotating shaft and a bearing seat. By setting a swing cylinder, the rotation of the joint to be tested is driven, and then the joint to be tested is put into the water or moved out of the water. The utility model realizes the test of the air tightness of the joint, which is convenient for observation. However, this utility model is only suitable for the air tightness test of one structure of bearings, and is not suitable for the air tightness test of other structures.

[0004] Therefore, the utility model proposes a multi-station airtightness test bench to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a multi-station airtightness test bench, which is used to solve the problem in the prior art that the type of workpieces tested by a machine is relatively single during the airtightness test process.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A multi-station air tightness test bench comprises a bracket, wherein a water storage barrel is arranged inside the bracket, a workbench is arranged on one side of the bracket, a plurality of push-pull air valves are evenly arranged on the workbench, one end of the push-pull air valve is connected to an air pump connecting pipe through an air inlet pipe; the other end of the push-pull air valve is connected to an air outlet pipe, and a sealing connection device is arranged at the end of the air outlet pipe.

[0008] By adopting the above technical solution, it is possible to observe whether bubbles emerge from the test piece, and then further determine the location of the leak, thereby ensuring the accuracy of the test. At the same time, it can correspond to multiple types of test pieces, thereby greatly improving the test efficiency and reducing labor loss.

[0009] Furthermore, one end of the air pump connecting pipe is connected to the air pump, and the other end of the air pump connecting pipe is connected to a blow gun. The blow gun includes a housing and a switch assembly. An air pipe is arranged in the housing, and the air pipe is connected to the air pump connecting pipe. The switch assembly can control the opening and closing of the air pipe.

[0010] By adopting the above technical solution, after completing the air tightness test of the tested piece, the surface of the tested piece can be blown by the air blow gun to blow away the water stains on the surface of the tested piece, which is beneficial to the subsequent storage or use of the tested piece.

[0011] Furthermore, an air pressure regulating valve is provided between the air pump connecting pipe and the air pump, and the air pressure regulating valve is capable of regulating the air pressure.

[0012] By adopting the above technical solution, the pressure can be adjusted to fill the tested object with gas at a certain pressure, thereby improving the accuracy and reliability of the test.

[0013] Furthermore, the side wall of the water storage barrel is provided with an observation window.

[0014] By adopting the above technical solution, the tested piece can be observed through the observation window, and it can be more intuitively seen whether bubbles emerge from the tested piece.

[0015] Furthermore, a placement platform is provided at the bottom of the water storage barrel, and the placement platform corresponds to the observation window.

[0016] By adopting the above technical solution, the position of the tested piece can be fixed accordingly, which is convenient for the staff to observe through the observation window.

[0017] Furthermore, a plurality of brake universal wheels are evenly arranged at the bottom of the bracket.

[0018] By adopting the above technical solution, the site can be changed according to the work needs, which expands the scope of use, reduces the transportation process of the tested pieces, increases the convenience of work, and improves the freedom of the test bench; when the working position of the test bench is fixed, the position of the test bench can be fixed by braking, ensuring the stability of the test bench during work.

[0019] Furthermore, a handle is provided at the top of the water storage bucket, and the bracket is provided with a groove corresponding to the handle.

[0020] By adopting the above technical solution, the water storage bucket can be separated from the bracket through the handle, which makes it easier to replace the water in the water storage bucket, facilitates more careful observation, and ensures the accuracy of the test.

[0021] In summary, compared with the prior art, the utility model has the following beneficial effects:

[0022] 1. The utility model can observe whether bubbles emerge from the tested piece, and further determine the location of the leak, and can adjust the pressure to fill the tested piece with gas of a certain pressure, thereby improving the accuracy and reliability of the test. At the same time, it can correspond to multiple types of tested pieces, thereby greatly improving the test efficiency and reducing labor loss.

[0023] 2. After completing the air tightness test on the tested piece, the utility model can blow air on the surface of the tested piece through the air blowing gun, thereby blowing away the water stains on the surface of the tested piece, which is beneficial to the subsequent storage or use of the tested piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a vertical schematic diagram of the utility model;

[0025] Figure 2 It is the front view of the utility model;

[0026] Figure 3 It is a left view of the utility model;

[0027] Figure 4 It is a top view of the utility model;

[0028] In the figure: 1 bracket, 11 workbench, 12 brake universal wheel, 13 groove, 2 push-pull air valve, 21 air inlet pipe, 22 air pump connecting pipe, 23 air outlet pipe, 24 sealing connecting device, 25 air pressure regulating valve, 3 air blowing gun, 31 housing, 32 switch assembly, 33 air pipe, 4 water storage bucket, 41 observation window, 42 placement table, 43 handle. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In this application, the directions or positional relationships indicated by the terms "upper", "inner", "outer", "middle", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction.

[0031] like Figure 1 As shown, a multi-station air tightness test bench includes a bracket 1, and a plurality of brake universal wheels 12 are evenly arranged at the bottom of the bracket 1. Therefore, the site can be changed according to the work needs, which increases the scope of use, reduces the transportation process of the tested pieces, increases the convenience of work, and improves the freedom of the test bench; when the working position of the test bench is fixed, the position of the test bench can be fixed by braking, ensuring the stability of the test bench during the work process.

[0032] like Figure 2 and Figure 4 As shown, a water storage bucket 4 is provided inside the bracket 1, and an observation window 41 is provided on the side wall of the water storage bucket 4. The test piece can be observed through the observation window 41, and it can be more intuitive to see whether there are bubbles coming out of the test piece. A placement table 42 is provided at the bottom of the water storage bucket 4, and the placement table 42 corresponds to the observation window 41. The position of the test piece can be fixed accordingly, which is convenient for the staff to observe through the observation window 41. A handle 43 is provided at the top of the water storage bucket 4, and a groove 13 is provided on the bracket 1 corresponding to the handle 43. When the test water in the water storage bucket 4 is turbid, it is not convenient to observe the test piece. The water storage bucket 4 can be separated from the bracket 1 through the handle 43, which makes it convenient to replace the water in the water storage bucket 4, so that it is convenient to observe more carefully and ensure the accuracy of the test.

[0033] like Figure 3As shown, a workbench 11 is provided on one side of the bracket 1, and a plurality of push-pull air valves 2 are evenly arranged on the workbench 11. One end of the push-pull air valve 2 is connected to the air pump connecting pipe 22 through the air inlet pipe 21; the other end of the push-pull air valve 2 is connected to the air outlet pipe 23, and a sealing connection device 24 is provided at the end of the air outlet pipe 23. The working principle of the push-pull air valve 2 is as follows: when the handle is in the open state, the air inlet channel will be connected to the air outlet channel, and the gas can flow smoothly; when the handle is in the closed state, the air channel and the air outlet channel will be closed, and the gas cannot pass through. Then, when performing an air tightness test, first connect the sealing connection device 24 to the opening or end of the tested piece, and then start the push-pull air valve 2, and then the gas enters the tested piece, and then observe whether there are bubbles coming out of the tested piece, and then further determine the location of the leak. At the same time, the utility model can correspond to multiple types of tested objects, and the utility model is provided with multiple push-pull type air valves 2, which can correspond to tested objects with multiple openings, thereby greatly improving the test efficiency and reducing the loss of labor.

[0034] like Figure 2 As shown, one end of the air pump connecting pipe 22 is connected to the air pump, and the other end of the air pump connecting pipe 22 is connected to the air blowing gun 3. The air blowing gun 3 includes a housing 31 and a switch assembly 32. An air pipe 33 is arranged in the housing 31. The air pipe 33 is connected to the air pump connecting pipe 22. The switch assembly 32 can control the opening and closing of the air pipe 33. After the air tightness test of the tested piece is completed, a large amount of water stains will be stained on the surface of the tested piece, which will affect the appearance of the surface of the tested piece, which is not conducive to the subsequent storage of the tested piece, and may even cause corrosion and certain damage to some of the tested pieces. After the air tightness test of the tested piece is completed, the air blowing gun 3 can be used to blow air on the surface of the tested piece, thereby blowing off the water stains on the surface of the tested piece, which is conducive to the subsequent storage or use of the tested piece.

[0035] Furthermore, an air pressure regulating valve 25 is provided between the air pump connecting pipe 22 and the air pump, and the air pressure regulating valve 25 can adjust the air pressure, and thus can adjust the pressure to fill the tested object with a certain pressure of gas, thereby improving the accuracy and reliability of the test.

[0036] The working process of the utility model is as follows: when the air tightness test is performed on the tested piece, the sealing connection device 24 is first connected to the opening or end of the tested piece, and then an air pressure regulating valve 25 is arranged between the air pump connecting pipe 22 and the air pump, and the air pressure regulating valve 25 can adjust the air pressure, and then the pressure can be adjusted to fill the tested piece with a certain pressure of gas, and then the push-pull air valve 2 is started, and then the gas enters the tested piece, and then it can be observed through the observation window 41 whether there are bubbles coming out of the tested piece, and then the location of the leak is further determined. After completing the air tightness test on the tested piece, the surface of the tested piece can be blown by the air blowing gun 3 to blow away the water stains on the surface of the tested piece.

Claims

1. A multi-station air tightness test bench, comprising a bracket (1), characterized in that: A water storage barrel (4) is arranged inside the support (1), a workbench (11) is arranged on one side of the support (1), and a plurality of push-pull type air valves (2) are evenly arranged on the workbench (11), one end of the push-pull type air valve (2) is connected to an air pump connecting pipe (22) via an air inlet pipe (21); the other end of the push-pull type air valve (2) is connected to an air outlet pipe (23), and a sealing connection device (24) is arranged at the end of the air outlet pipe (23).

2. A multi-station airtightness test bench according to claim 1, characterized in that: One end of the air pump connecting pipe (22) is connected to the air pump, and the other end of the air pump connecting pipe (22) is connected to an air blowing gun (3). The air blowing gun (3) comprises a housing (31) and a switch assembly (32). An air pipe (33) is arranged in the housing (31). The air pipe (33) is in communication with the air pump connecting pipe (22). The switch assembly (32) can control the opening and closing of the air pipe (33).

3. A multi-station airtightness test bench according to claim 2, characterized in that: An air pressure regulating valve (25) is provided between the air pump connecting pipe (22) and the air pump, and the air pressure regulating valve (25) is capable of regulating the air pressure.

4. The multi-station airtightness test bench according to claim 1 is characterized in that: The side wall of the water storage barrel (4) is provided with an observation window (41).

5. The multi-station airtightness test bench according to claim 4 is characterized in that: A placement platform (42) is provided at the bottom of the water storage barrel (4), and the placement platform (42) corresponds to the observation window (41).

6. The multi-station airtightness test bench according to claim 1 is characterized in that: A plurality of brake universal wheels (12) are evenly arranged at the bottom of the bracket (1).

7. The multi-station airtightness test bench according to claim 6, characterized in that: The top of the water storage bucket (4) is provided with a handle (43), and the bracket (1) is provided with a groove (13) corresponding to the handle (43).

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