Multi-gas-path gas permeability testing equipment

Abstract

The utility model discloses a multi-gas-path gas permeability testing device, and relates to the technical field of gas path gas permeability testing. Comprising a workbench, an air supply assembly is arranged in the workbench, the air supply assembly is communicated with a jig, the jig is detachably connected with a clamping assembly, the clamping assembly is arranged on the top face of the workbench, the jig is communicated with a test piece, the test piece is detachably connected with an air cylinder used for pressing the test piece, and the air cylinder is fixedly connected to the top face of the workbench; the air supply assembly comprises an air supply part, the air supply part communicates with a plurality of air distribution parts, and the air distribution parts communicate with the jig and are electrically connected with a displayer through a control system. According to the utility model, the gas sent by the gas supply part is divided into a plurality of parts through the gas distribution part, so that each part of gas can be used for carrying out gas permeability test on one gas path of a test piece mounted on the jig, the gas permeability test can be carried out on a plurality of gas paths simultaneously, and the test efficiency and accuracy are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air passage air permeability testing, in particular to a multi-air passage air permeability testing device. Background Art

[0002] At present, traditional air permeability testing devices can usually only test a single air passage and cannot test multiple air passages simultaneously, resulting in low testing efficiency and complex operation; therefore, there is an urgent need for an air permeability testing device that can test multiple air passages simultaneously to improve testing efficiency and accuracy. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a multi-air passage air permeability testing device to solve the problems existing in the above-mentioned prior art.

[0004] To achieve the above purpose, the utility model provides the following solution: The utility model provides a multi-air passage air permeability testing device, which includes a workbench. A gas supply component is arranged inside the workbench. The gas supply component is communicated with a fixture. The fixture is detachably connected with a clamping component. The clamping component is arranged on the top surface of the workbench. The fixture is communicated with a test piece. The test piece is detachably connected with a cylinder for pressing the test piece. The cylinder is fixedly connected to the top surface of the workbench.

[0005] The gas supply component includes an air delivery part. The air delivery part is communicated with a plurality of air distribution parts. The plurality of air distribution parts are communicated with the fixture. The plurality of air distribution parts are electrically connected to a display through a control system.

[0006] Preferably, the air delivery part includes an air storage tank fixedly connected inside the workbench. The air tank inlet of the air storage tank is communicated with a total air source through a total air inlet interface. A plurality of air tank outlets are arranged on the air storage tank. The air tank outlets are arranged in one-to-one correspondence with the air distribution parts and are communicated with them.

[0007] Preferably, the total air inlet interface is embedded on the side wall of the workbench.

[0008] Preferably, the air distribution part includes a third trachea integration seat communicated with the air tank outlet. The third trachea integration seat is communicated with the valve group air inlet of an electromagnetic valve group. The valve group air outlet of the electromagnetic valve group is communicated with the fixture through a transfer part.

[0009] Preferably, a plurality of valve group air outlets are arranged on the valve group air outlet of the electromagnetic valve group. A sensor is installed on each valve group air outlet. The sensor is electrically connected to a display through the control system.

[0010] Preferably, the adapter portion includes a first air pipe manifold connected to the valve group air outlet of the solenoid valve group, and the first air pipe manifold is connected to the fixture through a fourth air pipe manifold.

[0011] Preferably, a plurality of second air pipe manifolds are connected to the outer wall of the fixture. The second air pipe manifolds are detachably connected to and communicate with the fourth air pipe manifold. One end of the second air pipe manifold extending into the fixture is connected to an air path board, and the air path board is connected to the test piece.

[0012] Preferably, a plurality of air connection ports are formed on the air path board. The air connection ports are arranged and connected in one-to-one correspondence with the air paths of the test piece.

[0013] Preferably, a plurality of air pipe connectors are formed on the second air pipe manifold. All the air pipe connectors are arranged and connected in one-to-one correspondence with the air connection ports.

[0014] Preferably, the clamping assembly includes symmetrically arranged quick clamps, and the quick clamps are fixedly connected to the top surface of the workbench.

[0015] The present utility model discloses the following technical effects:

[0016] The present utility model divides the gas sent by the air supply portion into several portions through the air distribution portion, so that each portion of the gas can perform an air tightness test on one air path of the test piece installed on the fixture, and can simultaneously perform air tightness tests on multiple air paths, effectively improving the test efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 It is a schematic rear view structure diagram of the workbench of the present utility model;

[0020] Figure 3 It is a schematic front view structure diagram of the workbench of the present utility model;

[0021] Figure 4 It is a schematic diagram of the fixture structure of the present utility model;

[0022] Figure 5 Of the present utility model Figure 4Schematic diagram of the enlarged structure at position A in the middle;

[0023] Figure 6 Schematic diagram of the structure of the second air pipe integration seat of the present utility model;

[0024] Among them, 1, fixture; 2, quick clamp; 3, total air inlet interface; 4, cylinder; 5, display; 6, solenoid valve group; 7, sensor; 8, air inlet of the valve group; 9, first air pipe integration seat; 10, air outlet of the valve group; 11, second air pipe integration seat; 12, third air pipe integration seat; 13, fourth air pipe integration seat; 14, air storage tank; 15, air tank inlet; 16, air tank outlet; 17, air pipe joint; 18, air circuit board; 19, air connection port; 21, workbench. Specific implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0027] Embodiment 1

[0028] Referring to Figures 1-6 , the present utility model discloses a multi-air path air tightness test device, including a workbench 21. A gas supply component is arranged inside the workbench 21. The gas supply component is connected to a fixture 1. The fixture 1 is detachably connected to a clamping component. The clamping component is arranged on the top surface of the workbench 21. The fixture 1 is connected to a test piece. The test piece is detachably connected to a cylinder 4 for pressing the test piece. The cylinder 4 is fixedly connected to the top surface of the workbench 21; the gas supply component includes a gas delivery part. The gas delivery part is connected to a plurality of gas distribution parts. The plurality of gas distribution parts are connected to the fixture 1. The plurality of gas distribution parts are electrically connected to a display 5 through a control system.

[0029] The control system adopts the existing technology and can control the on-off of each gas distribution part, which will not be elaborated here.

[0030] The present utility model divides the gas sent by the gas delivery part into several parts through the gas distribution parts, so that each part of the gas can perform an air tightness test on an air path of the test piece installed on the fixture 1, and can simultaneously perform air tightness tests on multiple air paths, effectively improving the test efficiency and accuracy.

[0031] In a further optimized solution, the gas delivery unit includes a gas storage tank 14 fixedly connected to the workbench 21, a gas tank inlet 15 of the gas storage tank 14 is connected to the total gas source through the total gas inlet interface 3, and a plurality of gas tank outlets 16 of the gas storage tank 14 are provided, and the gas tank outlets 16 are arranged one by one with the gas separation unit and are connected. The gas can be initially diverted through the plurality of gas tank outlets 16 of the gas storage tank 14.

[0032] According to a further optimized solution, the main air inlet interface 3 is embedded on the side wall of the workbench 21 .

[0033] Further optimizing the scheme, the gas distribution part includes a third gas pipe integrated seat 12 connected to the gas tank outlet 16, the third gas pipe integrated seat 12 is connected to the valve group air inlet 8 of the solenoid valve group 6, and the valve group air outlet 10 of the solenoid valve group 6 is connected to the fixture 1 through the adapter. The valve group air outlet 10 can be opened and closed by the solenoid valve group 6.

[0034] In a further optimized solution, the solenoid valve group 6 is provided with a plurality of valve group outlets 10, each valve group outlet 10 is provided with a sensor 7, and the sensor 7 is electrically connected to the display 5 through the control system. The air pressure of the air circuit can be monitored by the sensor 7, and the result is displayed on the display 5.

[0035] The solenoid valve group 6 can control the opening and closing of each valve group air outlet 10, so as to control the total number of air paths opened.

[0036] To further optimize the solution, the adapter includes a first air pipe integrated seat 9 connected to the valve group air outlet 10 of the solenoid valve group 6, and the first air pipe integrated seat 9 is connected to the fixture 1 through a fourth air pipe integrated seat 13.

[0037] A further optimized solution is that the outer wall of the fixture 1 is connected to a plurality of second air pipe integrated seats 11, the second air pipe integrated seats 11 are detachably connected and communicated with the fourth air pipe integrated seats 13, and one end of the second air pipe integrated seat 11 extending into the fixture 1 is connected to an air circuit plate 18, and the air circuit plate 18 is communicated with the test piece.

[0038] Each gas path can be independently supplied with gas through the first gas pipe integrated seat 9 , the second gas pipe integrated seat 11 , the third gas pipe integrated seat 12 , and the fourth gas pipe integrated seat 13 .

[0039] According to a further optimization scheme, a plurality of air inlets 19 are provided on the air circuit plate 18, and the air inlets 19 are arranged one by one corresponding to and communicated with the air circuits of the test piece.

[0040] To prevent air leakage, a groove is provided on the air circuit board 18, and a number of air inlets 19 are provided in the groove. A sealing film is installed in the groove, and a number of through holes are provided on the sealing film. The through holes are arranged in one-to-one correspondence with the air inlets 19. When the cylinder 4 presses the test piece in the groove, air leakage can be effectively prevented through the sealing film.

[0041] In a further optimized solution, a number of air pipe connectors 17 are provided on the second air pipe integrated seat 11. All the air pipe connectors 17 are arranged in one-to-one correspondence with and connected to the air inlets 19. Through the number of air pipe connectors 17 provided on the second air pipe integrated seat 11, each air circuit on the fourth air pipe integrated seat 13 can be connected to each air pipe connector 17 to form an independent air circuit.

[0042] In a further optimized solution, the clamping assembly includes symmetrically arranged quick clamps 2, and the quick clamps 2 are fixedly connected to the top surface of the workbench 21.

[0043] A number of fixtures 1 are provided, and the number of air inlets 19 opened on each fixture 1 is determined according to the air circuit of the test piece.

[0044] Working process: The fixture 1 is positioned through the positioning pins on the top surface of the workbench 21, and the fixture 1 is fixed by the quick clamps 2. During the test, the cylinder 4 presses the test piece to prevent air leakage. The total air enters from the equipment total air inlet interface 3 and enters the air storage tank 14 through the air tank inlet 15 of the air storage tank 14. The air tank outlet 16 of the air storage tank 14 enables the gas to pass through the third air pipe integrated seat 12, the solenoid valve group 6, the first air pipe integrated seat 9, the fourth air pipe integrated seat 13, and the second air pipe integrated seat 11 in sequence and is sent into the air circuit of the test piece; the sensor 7 on the solenoid valve group 6 detects the air pressure value to judge whether the air circuit is unobstructed. If there is an air circuit blockage and the air pressure value is low, an alarm message is prompted on the display 5.

[0045] Embodiment 2

[0046] The difference between this embodiment and Embodiment 1 is:

[0047] The air tank outlet 16 of the air storage tank 14 is provided with three, the third air pipe integrated seat 12 is provided with three, each third air pipe integrated seat 12 is provided with four air outlets, and the valve group air outlet 10 of the solenoid valve group 6 is provided with eight, forming ninety-six independent air circuits, and the air circuit air tightness test of the test piece with one to ninety-six holes can be carried out by controlling the opening number of all the valve group air outlets 10 of the solenoid valve group 6.

[0048] The second air pipe integrated base 11 is divided into male and female connectors. The female connector is fixedly installed on the fixture 1. When replacing the fixture 1, the male connector is separated from the female connector on the fixture 1. Different fixtures 1 are configured with different female connectors. After replacing the fixture 1 with a new one, the male connector is installed on the female connector. The second air pipe integrated base 11 integrates twelve independent air paths. The number of air paths on the fixture 1 is connected to the corresponding air paths of the male connector of the second air pipe integrated base 11. Up to eight second air pipe integrated bases 11 can be connected, that is, ninety-six air paths.

[0049] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention, 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. Therefore, it should not be construed as a limitation to the present invention.

[0050] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A multi-gas-path gas permeability testing device, characterized in that: The invention comprises a workbench (21), wherein an air supply component is arranged inside the workbench (21), wherein the air supply component is connected to a fixture (1), wherein the fixture (1) is detachably connected to a clamping component, wherein the clamping component is arranged on the top surface of the workbench (21), wherein the fixture (1) is connected to a test piece, wherein the test piece is detachably connected to a cylinder (4) for pressing the test piece, wherein the cylinder (4) is fixedly connected to the top surface of the workbench (21); The air supply assembly comprises an air supply part, the air supply part is connected to a plurality of air distribution parts, a plurality of the air distribution parts are connected to the fixture (1), and a plurality of the air distribution parts are electrically connected to a display (5) through a control system.

2. The multi-gas-path gas permeability testing device according to claim 1, characterized in that: The gas delivery section comprises a gas storage tank (14) fixedly connected to the workbench (21); a gas tank inlet (15) of the gas storage tank (14) is connected to a total gas source via a total gas inlet interface (3); a plurality of gas tank outlets (16) of the gas storage tank (14) are provided, and the gas tank outlets (16) are arranged one-to-one with the gas distribution section and are connected.

3. The multi-gas-path gas permeability testing device according to claim 2, characterized in that: The main air intake interface (3) is embedded on the side wall of the workbench (21).

4. The multi-gas-path gas permeability testing device according to claim 2, characterized in that: The gas distribution part comprises a third gas pipe integrated seat (12) connected to the gas tank outlet (16); the third gas pipe integrated seat (12) is connected to the valve group air inlet (8) of the solenoid valve group (6); the valve group air outlet (10) of the solenoid valve group (6) is connected to the fixture (1) through a connecting part.

5. The multi-gas-path gas permeability testing device according to claim 4, characterized in that: The solenoid valve group (6) is provided with a plurality of valve group air outlets (10), each of which is equipped with a sensor (7), and the sensor (7) is electrically connected to a display (5) through the control system.

6. The multi-gas-path gas permeability testing device according to claim 4, characterized in that: The adapter portion comprises a first air pipe integrated seat (9) connected to the valve group air outlet (10) of the solenoid valve group (6); the first air pipe integrated seat (9) is connected to the fixture (1) via a fourth air pipe integrated seat (13).

7. The multi-gas-path gas permeability testing device according to claim 6, characterized in that: The outer wall of the fixture (1) is connected to a plurality of second air pipe integrated seats (11), the second air pipe integrated seats (11) are detachably connected and communicated with the fourth air pipe integrated seat (13), one end of the second air pipe integrated seat (11) extending into the fixture (1) is connected to an air circuit plate (18), and the air circuit plate (18) is communicated with the test piece.

8. The multi-gas-path gas permeability testing device according to claim 7, characterized in that: The gas circuit plate (18) is provided with a plurality of gas inlets (19), and the gas inlets (19) are arranged in one-to-one correspondence with the gas circuits of the test piece and are in communication with each other.

9. The multi-gas-path gas permeability testing device according to claim 8, characterized in that: The second air pipe integrated seat (11) is provided with a plurality of air pipe joints (17), and all of the air pipe joints (17) are arranged in one-to-one correspondence with the air inlet (19) and are in communication with each other.

10. The multi-gas-path gas permeability testing device according to claim 1, characterized in that: The clamping assembly comprises symmetrically arranged quick clamps (2), and the quick clamps (2) are fixedly connected to the top surface of the workbench (21).

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