A device for detecting the sealing property of an automobile connector

Abstract

The utility model belongs to the field of leakproofness detection device, concretely relates to a kind of for automobile connector leakproofness detection device, including box, the bottom of the box is fixedly connected with multiple support seat that is evenly distributed, the top of the box is fixedly connected with multiple support rod, the top of the support rod is fixedly connected with top plate, the top of the top plate is fixedly installed with hydraulic cylinder, the output end of the hydraulic cylinder is slidably connected with top plate, the lower end of the output end of the hydraulic cylinder is fixedly connected with fixed plate.The utility model is through the effect of the design hydraulic cylinder, the output end of hydraulic cylinder can drive fixed plate and upper body move down, and upper body and lower body splice can close its internal space, under the cooperation use of pressure block and first spring, the connector stored in lower body can be compressed and fixed, realize the fixed detection use of connector, and different length size connector can be fixed, and the device is better in adaptability.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing test devices, specifically a sealing test device for automotive connectors. Background Technology

[0002] The automotive connector sealing performance testing device is a specialized piece of equipment used in batch quality control and after-sales troubleshooting in automotive manufacturing production lines. It is mainly used to test the sealing performance of automotive connectors in different application scenarios, such as engine compartments, chassis, and high-voltage systems of new energy vehicles.

[0003] Utility model patent CN221527919U discloses an automotive connector testing device, including a housing with a hinged door on the front. The top of the housing has equidistant placement holes, and the bottom of each placement hole has a support cylinder fixed at equal intervals. The connector body to be tested is placed inside each support cylinder. This utility model, by setting up a housing, placement holes, support cylinders, an air supply assembly, a bracket, a top plate, a cylinder, a moving plate, a connecting cylinder, a piston, a T-shaped rod, an upper sealing cover, and a lower sealing cover, allows for sealing of the connector body inside the cavity after placing it inside the support cylinder. The upper and lower sealing covers work together to seal the connector body inside the cavity. The air supply assembly then inflates the inside of the connector body. Finally, the change in the height of the T-shaped rod is observed to determine the sealing performance of the connector body. The testing operation is convenient.

[0004] In the aforementioned prior art, the connector can be sealed and fixed by splicing the upper and lower sealing covers during the use of the testing device. However, if the connector is large, the upper and lower sealing covers cannot fit together to form a closed space after the upper sealing cover is pressed against the connector, which will affect the testing and use of the connector. Furthermore, it is inconvenient to filter and purify the air during the sealing test, and dust and impurities can easily be blown into the interior of the connector, requiring separate cleaning afterwards, making it quite cumbersome to use. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a sealing performance testing device for automotive connectors, which solves the problem of inconvenience in positioning and testing connectors of different sizes, and also solves the problem of inconvenience in filtering and purifying the air during testing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sealing performance testing device for automotive connectors, comprising a housing, a plurality of evenly distributed support seats fixedly connected to the bottom of the housing, a plurality of support rods fixedly connected to the top of the housing, a top plate fixedly connected to the top of the support rods, a hydraulic cylinder fixedly mounted on the top of the top plate, the output end of the hydraulic cylinder being slidably connected to the top plate, a fixing plate fixedly connected to the lower end of the output end of the hydraulic cylinder, an air pump fixedly mounted on the bottom of the inner wall of the housing, a suction port provided at the left end of the air pump, an exhaust port provided at the top of the air pump, a connecting plate fixedly connected to the top of the exhaust port, a plurality of exhaust pipes fixedly connected to the top of the connecting plate, a lower body fixedly sleeved on the outer side of the exhaust pipes, the lower body being fixedly connected to the housing, a positioning mechanism provided on the fixing plate, and a filtering mechanism provided on the housing.

[0007] Preferably, a guide post is fixedly connected to the top of the fixed plate, and the guide post is slidably connected to the top plate. By designing the guide post, the movement of the fixed plate can be guided.

[0008] Preferably, the positioning mechanism includes an upper body, with multiple upper bodies fixedly connected inside the fixing plate. A piston is slidably sleeved inside the upper body, and a push rod is fixedly connected to the top of the piston. The push rod is slidably connected to the upper body. A fixing strip is fixedly connected inside the upper body, and a guide rod is fixedly connected to the lower end of the fixing strip. A first spring is provided on the outer side of the guide rod, and a connecting strip is slidably sleeved on the outer side of the guide rod. The connecting strip is slidably connected to the upper body, and a pressure rod is fixedly connected to the lower end of the connecting strip. A pressure block is fixedly connected to the bottom of the pressure rod. By designing this positioning mechanism, connectors of different sizes can be positioned.

[0009] Preferably, one end of the first spring is fixedly connected to the fixing strip, and the other end of the first spring is fixedly connected to the connecting strip. By designing the first spring, the force of the first spring can be applied to the connecting strip.

[0010] Preferably, the filtration mechanism includes a filter plate, which is slidably fitted onto the left end of the housing. The filter plate has slots at its top and bottom, and a retaining ball is movably fitted inside each slot. The retaining ball is movably connected to the housing. A slider is slidably fitted onto the outside of the retaining ball and is slidably connected to the housing. A fixing rod is slidably fitted inside the slider and is fixedly connected to the housing. A second spring is provided on the outside of the fixing rod. By designing this filtration mechanism, air can be filtered and purified.

[0011] Preferably, one end of the second spring is fixedly connected to the slider, and the other end of the second spring is fixedly connected to the housing. By designing the second spring, its force can be applied to the slider.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model utilizes the design of a hydraulic cylinder. The output end of the hydraulic cylinder can drive the fixed plate and the upper body to move downward. The upper body and the lower body can be spliced ​​together to seal their internal space. With the cooperation of the pressure block and the first spring, the connector stored inside the lower body can be pressed and fixed, realizing the fixed detection of the connector. It can also be adapted to fix connectors of different lengths and sizes, making the device more adaptable.

[0013] 2. This utility model utilizes an air pump to create a negative pressure inside the housing, drawing in outside air. The air is then directed downwards to the connector for testing. During the intake process, the air is filtered and purified by a filter plate, preventing dust and impurities from entering the air pump and causing damage. It also prevents dust and impurities from being blown into the connector and causing contamination. Furthermore, the filter plate is easy to disassemble for cleaning and maintenance. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model; Figure 2 This utility model Figure 1 A partial three-dimensional sectional view of the structure; Figure 3 This utility model Figure 2 A front sectional view of the upper body; Figure 4 This utility model Figure 2 The front sectional view of the filter plate.

[0015] In the diagram: 1. Box body; 2. Support base; 3. Support rod; 4. Top plate; 5. Hydraulic cylinder; 6. Fixing plate; 7. Guide column; 8. Positioning mechanism; 9. Filtering mechanism; 10. Air pump; 11. Suction port; 12. Exhaust port; 13. Connecting plate; 14. Exhaust pipe; 15. Lower body; 81. Upper body; 82. Piston; 83. Top rod; 84. Fixing strip; 85. Guide rod; 86. First spring; 87. Connecting strip; 88. Pressure rod; 89. Pressure block; 91. Filter plate; 92. Slot; 93. Ball clamp; 94. Slider; 95. Fixing rod; 96. Second spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1 , Figure 2 A sealing performance testing device for automotive connectors includes a housing 1. Multiple evenly distributed support seats 2 are fixedly connected to the bottom of the housing 1. Multiple support rods 3 are fixedly connected to the top of the housing 1. A top plate 4 is fixedly connected to the top of the support rods 3. A hydraulic cylinder 5 is fixedly mounted on the top of the top plate 4. The output end of the hydraulic cylinder 5 is slidably connected to the top plate 4. A fixing plate 6 is fixedly connected to the lower end of the output end of the hydraulic cylinder 5. A guide post 7 is fixedly connected to the top of the fixing plate 6. The guide post 7 is slidably connected to the top plate 4. Through design... The guide post 7 guides the movement of the fixed plate 6. An air pump 10 is fixedly installed on the bottom of the inner wall of the box 1. A suction port 11 is provided at the left end of the air pump 10. An exhaust port 12 is provided at the top of the air pump 10. A connecting plate 13 is fixedly connected to the top of the exhaust port 12. Multiple exhaust pipes 14 are fixedly connected to the top of the connecting plate 13. A lower body 15 is fixedly sleeved on the outside of the exhaust pipes 14. The lower body 15 is fixedly connected to the box 1. A positioning mechanism 8 is provided on the fixed plate 6. A filter mechanism 9 is provided on the box 1.

[0018] Please see Figure 1 , Figure 2 , Figure 3 The positioning mechanism 8 includes an upper body 81. Multiple upper bodies 81 are fixedly connected inside the fixing plate 6. A piston 82 is slidably sleeved inside the upper body 81. A push rod 83 is fixedly connected to the top of the piston 82 and is slidably connected to the upper body 81. A fixing strip 84 is fixedly connected inside the upper body 81. A guide rod 85 is fixedly connected to the lower end of the fixing strip 84. A first spring 86 is provided on the outer side of the guide rod 85. One end of the first spring 86 is fixedly connected to the fixing strip 84, and the other end of the first spring 86 is fixedly connected to the connecting strip 87. By designing the first spring 86, the force of the first spring 86 can act on the connecting strip 87. The connecting strip 87 is slidably sleeved on the outer side of the guide rod 85 and is slidably connected to the upper body 81. A pressure rod 88 is fixedly connected to the lower end of the connecting strip 87, and a pressure block 89 is fixedly connected to the bottom of the pressure rod 88. By designing the positioning mechanism 8, it is possible to position connectors of different sizes.

[0019] Please see Figure 1 , Figure 2 , Figure 4The filtration mechanism 9 includes a filter plate 91. The filter plate 91 is slidably sleeved on the left end of the housing 1. The top and bottom of the filter plate 91 are provided with slots 92. A retaining ball 93 is movably sleeved inside the slot 92 and is movably connected to the housing 1. A slider 94 is movably sleeved on the outside of the retaining ball 93 and is slidably connected to the housing 1. A fixing rod 95 is slidably sleeved inside the slider 94 and is fixedly connected to the housing 1. A second spring 96 is provided on the outside of the fixing rod 95. One end of the second spring 96 is fixedly connected to the slider 94 and the other end is fixedly connected to the housing 1. By designing the second spring 96, the force of the second spring 96 can act on the slider 94. By designing the filtration mechanism 9, air can be filtered and purified.

[0020] The specific implementation process of this utility model is as follows: In use, the connector is first placed inside the lower body 15, and the connector will be sleeved on the outside of the exhaust pipe 14. Then, the hydraulic cylinder 5 is activated. The output end of the hydraulic cylinder 5 drives the fixing plate 6 to move down. The fixing plate 6 drives the guide post 7 to slide along the top plate 4. At the same time, the fixing plate 6 drives the upper body 81 to move down. The upper body 81 drives the pressure block 89 to move down. The pressure block 89 will first contact the connector while the upper body 81 continues to move down. The upper body 81 drives the fixing strip 84 and the guide rod 85 to slide along the connecting strip 87. The fixing strip 84 will press down the first spring 86. When the upper body 81 and the lower body 15 are in contact, the elastic action of the first spring 86 will give the connecting strip 87 a downward push force, which can make the pressure block 89 press down the connector. The connector can be pressed tightly inside the lower body 15 to realize the fixed detection of the connector. It can also be adapted to the fixing of connectors of different lengths and sizes, and the device has better adaptability.

[0021] When testing is required, the air pump 10 operates, drawing air into the chamber 1 through the suction port 11, creating a negative pressure inside the chamber 1. Then, external air enters the chamber 1 after being filtered by the filter plate 91. Subsequently, the gas is input into the connecting plate 13 through the exhaust port 12, and then into the connector through the exhaust pipe 14, thus enabling a sealing test on the connector. If the connector is not airtight, the gas will enter the upper body 81 and push the piston 82 and the push rod 83 upwards; otherwise, the push rod 83 will not move.

[0022] During the air intake process, the filter plate 91 filters and purifies the external air, preventing dust and impurities from entering the air pump 10 and causing damage. It also prevents dust and impurities from being blown into the connector and causing contamination. When the filter plate 91 needs to be disassembled, simply push the filter plate 91 horizontally. The filter plate 91 slides along the housing 1, and the arc surface of the slot 92 inside the filter plate 91 will press and push the retaining ball 93. The retaining ball 93 will roll into the housing 1 and push the slider 94 to slide along the fixed rod 95. The slider 94 can press the second spring 96, which can separate the retaining ball 93 from the slot 92. Then the filter plate 91 can be removed from the housing 1 for easy cleaning and maintenance.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the sealing performance of automotive connectors, comprising a housing (1), characterized in that: The bottom of the box (1) is fixedly connected to a plurality of evenly distributed support seats (2), the top of the box (1) is fixedly connected to a plurality of support rods (3), the top of the support rods (3) is fixedly connected to a top plate (4), a hydraulic cylinder (5) is fixedly installed on the top of the top plate (4), the output end of the hydraulic cylinder (5) is slidably connected to the top plate (4), the lower end of the output end of the hydraulic cylinder (5) is fixedly connected to a fixing plate (6), and an air pump (10) is fixedly installed on the bottom of the inner wall of the box (1). The left end of the air pump (10) is provided with a suction port (11), the top of the air pump (10) is provided with an exhaust port (12), the top of the exhaust port (12) is fixedly connected with a connecting plate (13), the top of the connecting plate (13) is fixedly connected with multiple exhaust pipes (14), the outer side of the exhaust pipe (14) is fixedly sleeved with a lower body (15), the lower body (15) is fixedly connected with the box (1), the fixed plate (6) is provided with a positioning mechanism (8), and the box (1) is provided with a filter mechanism (9).

2. The sealing performance testing device for automotive connectors according to claim 1, characterized in that: The top of the fixed plate (6) is fixedly connected to a guide post (7), and the guide post (7) is slidably connected to the top plate (4).

3. The sealing performance testing device for automotive connectors according to claim 1, characterized in that: The positioning mechanism (8) includes an upper body (81). Multiple upper bodies (81) are fixedly connected inside the fixing plate (6). A piston (82) is slidably sleeved inside the upper body (81). A top rod (83) is fixedly connected to the top of the piston (82). The top rod (83) is slidably connected to the upper body (81). A fixing strip (84) is fixedly connected inside the upper body (81). A guide rod (85) is fixedly connected to the lower end of the fixing strip (84). A first spring (86) is provided on the outside of the guide rod (85). A connecting strip (87) is slidably sleeved on the outside of the guide rod (85). The connecting strip (87) is slidably connected to the upper body (81). A pressure rod (88) is fixedly connected to the lower end of the connecting strip (87). A pressure block (89) is fixedly connected to the bottom of the pressure rod (88).

4. The sealing performance testing device for automotive connectors according to claim 3, characterized in that: One end of the first spring (86) is fixedly connected to the fixing bar (84), and the other end of the first spring (86) is fixedly connected to the connecting bar (87).

5. The sealing performance testing device for automotive connectors according to claim 1, characterized in that: The filtration mechanism (9) includes a filter plate (91). The filter plate (91) is slidably sleeved on the left end of the housing (1). The top and bottom of the filter plate (91) are provided with slots (92). A ball (93) is movably sleeved inside the slot (92). The ball (93) is movably connected to the housing (1). A slider (94) is movably sleeved on the outside of the ball (93). The slider (94) is slidably connected to the housing (1). A fixing rod (95) is slidably sleeved inside the slider (94). The fixing rod (95) is fixedly connected to the housing (1). A second spring (96) is provided on the outside of the fixing rod (95).

6. The sealing performance testing device for automotive connectors according to claim 5, characterized in that: One end of the second spring (96) is fixedly connected to the slider (94), and the other end of the second spring (96) is fixedly connected to the housing (1).

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