An air tightness detection tool

Abstract

The utility model relates to filter air -tight detection technical field, concretely relates to a kind of air -tight detection tool, including base, two ends of base are equipped with gas outlet end mechanism, gas outlet end mechanism has the gas outlet joint being connected with filter gas outlet end, base side is equipped with gas inlet end mechanism between two gas outlet end mechanisms, gas inlet end mechanism includes lifting seat, lifting seat has moving end and fixed end, the moving end of lifting seat is on the base between two gas outlet end mechanisms, the moving end of lifting seat both sides are equipped with the fixed mechanism of fixed filter and the gas inlet joint being communicated with filter gas inlet end.The utility model carries out air -tight detection to filter, the whole process mechanical automation is completed, reduces artificial workload, improves detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of filter air tightness testing technology, and specifically to an air tightness testing fixture. Background Technology

[0002] Air filters are essential components of automobiles, typically consisting of a circular housing and a filter element located inside. Air filters remove dust and impurities from the air intake of the engine, reducing premature wear on the cylinders, pistons, piston rings, valves, and valve seats. The airtightness of the air filter directly affects the quality of the motor vehicle, making airtightness testing a crucial technical area.

[0003] When performing an airtightness test on a filter, the product to be tested needs to be placed on the testing fixture, the air outlet of the product to be tested is blocked, and air is introduced into the product to be tested through the air inlet so that the inside of the product to be tested can be filled with the required air pressure. At this time, press the test button, and the testing equipment will execute the testing program to complete the test. After the test is completed, the air outlet needs to be opened to release the air pressure and the product after the test is completed needs to be taken out.

[0004] Existing technologies mostly rely on manual methods to seal the air inlet and outlet of filter products, resulting in low testing efficiency. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides an airtightness testing fixture that automates the airtightness testing of filters, reducing manual labor and improving testing efficiency.

[0006] This utility model is achieved through the following technical solution:

[0007] An airtightness testing fixture includes a base with outlet mechanisms at both ends. Each outlet mechanism has an outlet connector connected to the outlet of a filter. An inlet mechanism is located on one side of the base between the two outlet mechanisms. The inlet mechanism includes a lifting seat with a movable end and a fixed end. The movable end of the lifting seat is located on the base between the two outlet mechanisms. Both sides of the movable end of the lifting seat have a fixing mechanism for fixing the filter and an inlet connector connected to the inlet of the filter.

[0008] More preferably, both of the air outlet mechanisms include a mounting base mounted on the base, a second cylinder is provided on the top of the mounting base, a top plate is provided at the output end of the second cylinder, and an air outlet connector is provided on the bottom of the top plate on the side opposite to the second cylinder.

[0009] In a further preferred embodiment, both the air inlet and air outlet are equipped with vent plugs, which are made of urethane rubber.

[0010] More preferably, the air intake mechanism includes a cylinder, and the fixed end of the lifting seat is connected to the output end of the cylinder.

[0011] In a further preferred embodiment, the tooling also includes a water tank containing water, with the base installed inside the water tank.

[0012] In a further preferred embodiment, the tooling also includes an air source hose connected to the air inlet connector, and the top surface of the moving end of the lifting seat has a connecting connector connected to the air source hose. The connecting connector is connected to the air inlet connector on the side inside the moving end of the lifting seat for charging air into the air inlet of the filter.

[0013] More preferably, the moving end of the lifting seat is provided with four fixing mechanisms and four air inlet connectors, and the bottom of the two top plates is provided with two air outlet connectors. The central axes of the air outlet connectors, fixing mechanisms and air inlet connectors are in a straight line.

[0014] The beneficial effects of this utility model are:

[0015] 1) The airtightness testing fixture of this utility model is driven by cylinder one to lower the moving end of the lifting seat down between the two air outlet mechanisms. The filter is installed on the fixed mechanism and the air inlet end of the filter is connected to the air inlet connector. Then, cylinder two drives the top plate to move towards the air outlet end of the filter. The air outlet connector seals the air outlet end of the filter. Then, the air source hose inflates the air inlet end of the filter for testing. The whole process is completed mechanically and automatically, reducing manual workload and improving testing efficiency.

[0016] 2) The airtightness testing fixture of this utility model completes the test in a water tank. After the cylinder lifts and fixes the fixture, it is convenient for the staff to install and remove the filter without having to install or remove the filter in the water.

[0017] 3) The air tightness testing fixture of this utility model has an air outlet mechanism installed on both sides of the lifting seat, and each air outlet mechanism is equipped with two air outlet connectors, which correspond to the four fixing mechanisms and air inlet connectors on the lifting seat. It can test four filters at the same time, further improving work efficiency.

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a three-dimensional structural schematic diagram of an airtightness testing fixture in an embodiment of this utility model.

[0021] Figure 2 This is a three-dimensional structural diagram of an airtightness testing fixture without a water tank, as described in an embodiment of this utility model.

[0022] 1-Base, 2-Lifting seat, 3-Moving end, 4-Fixed end, 5-Fixing mechanism, 6-Air inlet connector, 7-Connecting connector, 8-Mounting seat, 9-Cylinder II, 10-Top plate, 11-Air outlet connector, 12-Air vent plug, 13-Water tank, 14-Through hole, 15-Filter air inlet end, 16-Filter air outlet end. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] An airtightness testing fixture, such as Figure 1 and 2As shown, the system includes a base 1 with outlet mechanisms at both ends for sealing the air outlet 16 of the filter during airtightness testing. An inlet mechanism is located on one side of the base 1 between the two outlet mechanisms, sealing the air inlet 15 of the filter during airtightness testing. The inlet mechanism includes a cylinder (not shown, installed below the fixed end 4 of the lifting seat 2) and the lifting seat 2. The lifting seat 2 has a movable end 3 and a fixed end 4. The fixed end 4 of the lifting seat 2 is connected to the cylinder... The output end of the lifting seat 2 is connected, and the moving end 3 of the lifting seat 2 moves up and down above the base 1 between the two air outlet mechanisms. The moving end 3 of the lifting seat 2 is provided with a fixing mechanism 5 for fixing the filter and an air inlet connector 6 that communicates with the air inlet end 15 of the filter. The fixing mechanism 5 and the air inlet connector 6 are both located on both sides of the moving end 3 of the lifting seat 2, that is, on both sides facing the two air outlet mechanisms. The fixing mechanism 5 and the air inlet connector 6 are in corresponding positions. That is, when the filter is fixed on the fixing mechanism 5, the air inlet end 15 of the filter can communicate with the air inlet connector 6.

[0027] The tooling also includes an air supply detection component that communicates with the air inlet end 15 of the filter. The air supply detection component is connected to the air inlet connector 6. The air supply detection component includes an air source hose (not shown in the figure). One end of the air source hose is connected to an air source, and the other end of the air source hose is connected to the air inlet connector 6. The air supply detection component is used to charge the air inlet end of the filter. The top surface of the moving end 3 of the lifting seat 2 has a connecting connector 7 that connects to the air source hose to charge the air source into the moving end 3. The air source hose is connected to the connecting connector 7. The connecting connector 7 is connected to the air inlet connector 6 on the side inside the moving end 3 of the lifting seat 2, so that the air source is charged into the air inlet end 15 of the filter connected to the air inlet connector 6.

[0028] Both air outlet mechanisms include a mounting base 8 mounted on the base 1. The top of the mounting base 8 is provided with a cylinder 9. The output end of the cylinder 9 is provided with a top plate 10. The bottom of the top plate 10 is provided with an air outlet connector 11 on the side opposite to the cylinder 9. The central axes of the air outlet connector 11, the fixing mechanism 5 and the air inlet connector 6 are in a straight line. The two top plates 10 are driven to move towards the middle by the cylinders 9 on both sides, so that the air outlet connector 11 is connected to the air outlet end 16 of the filter. Preferably, a vent plug 12 is provided at both the air inlet connector 6 and the air outlet connector 11. The vent plug 12 is made of urethane and serves to seal the connection between the filter and the interface.

[0029] like Figure 1As shown, the fixture also includes a water tank 13. The base 1 is installed inside the water tank 13, which is filled with water. The installation height of the cylinder 2 9 is higher than the water level in the water tank 13 to prevent the cylinder 2 9 from contacting the water. In addition, the moving end 3 of the lifting seat 2 passes through one side wall of the water tank 13. A through hole 14 is provided on the side wall of the water tank 13 for the moving end 3 of the lifting seat 2 to move up and down. The water tank 13 is used to check whether the air tightness of the filter is intact when it is filled with air. If there are air bubbles in the water, it means that the filter is leaking air. If there are no air bubbles in the water, the filter is airtight.

[0030] Preferably, there are four fixing mechanisms 5 on both sides of the moving end 3 of the lifting seat 2, that is, two fixing mechanisms 5 on each side. Correspondingly, there are four air inlet connectors 6 on both sides of the moving end 3 of the lifting seat 2, which correspond one-to-one with the fixing mechanisms 5. At the same time, there are two air outlet connectors 11 on the bottom of the two top plates 10, which also correspond one-to-one with the fixing mechanisms 5. In other words, after fixing four filters at the same time, the air tightness of the four filters can be tested at the same time, and the presence of air bubbles around each filter can be observed.

[0031] The working process of this utility model's airtightness testing fixture is as follows:

[0032] Cylinder 1 drives the lifting seat 2 to rise, installing the filter on the fixed mechanism 5, and connecting the air inlet end 15 of the filter to the air inlet connector 6 on the lifting seat 2, so that the air supply detection component is connected to the air inlet end 15 of the filter. Cylinder 1 drives the lifting seat 2 to fall onto the base 1. Then, cylinders 9 on both sides drive the top plate 10 to move towards the filter. The air outlet connector 11 at the bottom of the top plate 10 seals the air outlet end 16 of the filter. Then, the air supply detection component fills the filter with air and observes whether there are air bubbles in the water tank 13 to check the air tightness of the filter. After the check is completed, cylinder 9 drives the top plate 10 to leave the filter, releasing the air pressure in the filter. Finally, the staff removes the filter from the fixed mechanism 5.

[0033] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A leak detection tool, characterized by: Includes a base (1), the base (1) is provided with an air outlet mechanism at both ends, the air outlet mechanism has an air outlet connector (11) connected to the air outlet (16) of the filter, the base (1) is provided with an air inlet mechanism between the two air outlet mechanisms on one side, the air inlet mechanism includes a lifting seat (2), the lifting seat (2) has a moving end (3) and a fixed end (4), the moving end (3) of the lifting seat (2) is on the base (1) between the two air outlet mechanisms, the moving end (3) of the lifting seat (2) has a fixing mechanism (5) for fixing the filter and an air inlet connector (6) connected to the air inlet (15) of the filter on both sides.

2. The air tightness detection tool according to claim 1, wherein: Both air outlet mechanisms include a mounting base (8) mounted on the base (1), a cylinder two (9) is provided on the top of the mounting base (8), a top plate (10) is provided at the output end of the cylinder two (9), and the air outlet connector (11) is located on the bottom of the top plate (10) on the side opposite to the cylinder two (9).

3. The airtightness testing fixture according to claim 2, characterized in that: Vent plugs (12) are provided at both the air inlet connector (6) and the air outlet connector (11), and the vent plugs (12) are made of urethane.

4. The air tightness detection tool according to claim 1, wherein: The air intake mechanism includes a cylinder, and the fixed end (4) of the lifting seat (2) is connected to the output end of the cylinder.

5. The hermeticity testing tool of claim 1, wherein: The fixture also includes a water tank (13) containing water, and the base (1) is installed inside the water tank (13).

6. The hermeticity testing tool of claim 1, wherein: The tooling also includes an air source hose connected to the air inlet connector (6). The top surface of the moving end (3) of the lifting seat (2) has a connecting connector (7) connected to the air source hose. The connecting connector (7) is connected to the air inlet connector (6) on the side inside the moving end (3) of the lifting seat (2) for filling the air inlet end (15) of the filter with air.

7. The hermeticity testing tool of claim 2, wherein: The moving end (3) of the lifting seat (2) has four fixing mechanisms (5) and four air inlet connectors (6), and the bottom of the two top plates (10) has two air outlet connectors (11). The central axes of the air outlet connectors (11), the fixing mechanisms (5) and the air inlet connectors (6) are in a straight line.

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