Multi-cavity leakage testing equipment

Abstract

The utility model discloses a multi-cavity leakage testing device, relates to the technical field of shell leakage testing devices, and aims to solve the problems that the existing leakage testing device cannot accurately find leakage points of a detected product and needs a long time to find production defects, and the key points of the technical scheme are that the multi-cavity leakage testing device comprises a placing box and an elastic plugging block fixedly connected with the inner bottom side of the placing box; a placing frame is fixedly connected to one side of the placing box, a plurality of pigment tanks are clamped to the placing frame, electromagnetic valves are fixedly connected to the pigment tanks, a positioning plate is slidably connected to the placing box, a sliding groove is formed in the positioning plate, a plurality of water droppers are slidably connected into the sliding groove, and a hose is fixedly connected to the other end of each electromagnetic valve; and the other ends of the hoses are fixedly connected to the drippers respectively. According to the multi-cavity leakage testing equipment, experimental errors can be reduced in the leakage testing process, the stability of an experiment is ensured, and a leakage point can be accurately found when leakage occurs in the leakage testing process, so that production defects can be quickly determined.

Description

Technical Field

[0001] This utility model relates to the field of leak testing equipment technology, and more specifically, it relates to a multi-cavity leak testing device. Background Technology

[0002] The flywheel housing is a multi-chamber housing and an important component of the engine. It is usually located at the rear of the engine. Because it plays a role in preventing the leakage of lubricating oil inside the engine, it is necessary to conduct leak testing.

[0003] The patent application number CN202122789849.X discloses a flywheel housing detection device, which includes a frame, a moving component, a sealing component and a detection component mounted on the frame. The moving component places the flywheel housing on the moving component and brings the flywheel housing under the sealing component. The sealing component presses against the surface of the flywheel housing and inflates to seal the through holes of the flywheel housing. The detection component is mounted on the moving component and detects the airtightness of the flywheel housing.

[0004] The detection device in the above solution can effectively avoid air leakage when testing the flywheel housing and prevent damage to the flywheel housing during testing. However, it observes the air leakage by looking at the pressure curve changes of the airtightness testing equipment, which makes it difficult to accurately find the leakage point of the tested product and to find production defects. In addition, in cities with high altitudes, a booster pump is required to continue testing, which increases costs.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a multi-cavity leak testing device that can reduce experimental errors during the leak testing process, ensure the stability of the experiment, and accurately locate the leak point when a leak occurs, so as to quickly identify production defects.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A multi-chamber leak testing device includes a placement box and an elastic sealing block fixedly connected to the bottom side of the placement box. A placement frame is fixedly connected to one side of the placement box. Several pigment cans are snapped onto the placement frame. A solenoid valve is fixedly connected to each of the pigment cans. A positioning plate is slidably connected to the placement box. A groove is opened on the positioning plate. Several drippers are slidably connected in the groove. A hose is fixedly connected to the other end of the solenoid valve. The other ends of the hoses are respectively fixedly connected to the drippers. A driving component for driving the positioning plate to slide is provided on the placement frame. A positioning component for preventing the drippers from deviating is provided on the positioning plate and the placement box.

[0008] The present invention is further configured such that: the driving component includes an electric slide rail fixedly connected to the placement frame and a slider slidably connected to the electric slide rail, the slider being fixedly connected to one end of the positioning plate.

[0009] The present invention is further configured such that the middle section of the hose is spirally arranged.

[0010] The present invention is further configured such that: the positioning component includes two positioning posts slidably connected on the positioning plate, four rotating plates rotatably connected on the positioning posts, and two extrusion plates rotatably connected on the four rotating plates on the same side; the four rotating plates on the same side are connected in pairs to the extrusion plates on the same side; the other end of the extrusion plate is rotatably connected to the two rotating plates on the opposite side; an automatic winding device is fixedly connected to the side of the placement box near the placement frame; a pull rope is fixedly connected to the coil spring of the automatic winding device; and the other end of the pull rope is fixedly connected to the positioning post on the same side.

[0011] The present invention is further configured such that a rubber plate is fixedly connected to one side of the two extrusion plates that are close to each other.

[0012] The present invention is further configured such that: a guide wheel is rotatably connected to the positioning plate, and the guide wheel is in contact with the pull rope.

[0013] The present invention is further configured such that: magnetic blocks are fixedly connected to both sides of the drip head, and magnetic strips are fixedly connected to both sides of the slide groove, and the magnetic blocks and the magnetic strips on the same side attract each other.

[0014] The present invention is further configured such that: several electric push rods are fixedly connected to both sides inside the placement box, and a clamp body is fixedly connected to the output end of the electric push rod on the same side; two turntables are slidably connected to the clamp body; two turntables are slidably connected to the turntables; and two turntables are slidably connected to the turntables; the two clamp bodies are arranged symmetrically.

[0015] In summary, this utility model has the following beneficial effects: it can reduce experimental errors during leak testing, ensure the stability of the experiment, accurately locate the leak point when a leak occurs, quickly identify production defects, and accurately position the flywheel housing during leak testing to prevent the flywheel housing from shifting during the test. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 A cross-sectional view of this utility model Figure 1 ;

[0018] Figure 3 A cross-sectional view of this utility model Figure 2 ;

[0019] Figure 4 A cross-sectional view of this utility model Figure 3 ;

[0020] Figure 5 for Figure 4 Enlarged schematic diagram of part A;

[0021] Figure 6 A cross-sectional view of this utility model Figure 4 .

[0022] In the diagram: 1. Placement box; 2. Elastic sealing block; 3. Placement frame; 4. Paint container; 5. Solenoid valve; 6. Positioning plate; 7. Slide groove; 8. Dropper; 9. Hose; 10. Electric slide rail; 11. Slider; 12. Positioning post; 13. Rotating plate; 14. Extrusion plate; 15. Automatic winder; 16. Pull rope; 17. Rubber plate; 18. Guide wheel; 19. Magnetic block; 20. Magnetic strip; 21. Electric push rod; 22. Clamp body; 23. Turntable 1; 24. Turntable 2; 25. Turntable 3. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] A multi-cavity leak testing device, such as Figures 1-5 As shown, the device includes a placement box 1 and an elastic sealing block 2 fixedly connected to the bottom side of the placement box 1. A placement frame 3 is fixedly connected to one side of the placement box 1. Several pigment cans 4 are snapped onto the placement frame 3. The pigment cans 4 contain pigments of different colors. A solenoid valve 5 is fixedly connected to each of the pigment cans 4. A positioning plate 6 is slidably connected to the placement box 1. A groove 7 is opened on the positioning plate 6. Several drippers 8 are slidably connected in the groove 7. A hose 9 is fixedly connected to the other end of the solenoid valve 5. The other ends of the hoses 9 are fixedly connected to the drippers 8 respectively. A driving component is provided on the placement frame 3 to drive the positioning plate 6 to slide. Positioning components are provided on the positioning plate 6 and the placement box 1 to prevent the drippers 8 from shifting.

[0025] like Figures 1-5As shown, when a leak test is required on the flywheel housing, first place the flywheel housing in the placement frame 3, and make the elastic sealing block 2 seal the through hole of the flywheel housing. Then manually adjust each dripper 8 to the required position. Next, pour water into the placement frame 3 until it submerges the flywheel housing, and then drain the water so that the liquid level is slightly lower than the flywheel housing. After completion, wait for the liquid level to return to normal, and then start the drive assembly to move the positioning plate 6 away from the pigment tank 4 until it moves to the upper side of the cavity closest to the pigment tank 4. When the positioning plate 6 moves, the positioning assembly will also be driven to fix each dripper 8. At this time, open the solenoid valve 5 of this dripper 8, so that the pigment in the pigment tank 4 drips from this dripper 8 through the hose 9 and mixes with the water in this cavity to dye it. Then let it stand for a period of time and check the liquid level in the main cavity of the flywheel housing. If the water is not contaminated, the positioning plate 6 continues to move to the next chamber. When it moves to the upper side of the next chamber, the solenoid valve 5 of the dripper 8 is opened, allowing the pigment in the pigment tank 4 to drip from the dripper 8 through the hose 9 and mix with the water in the next chamber to color it. After a period of time, if the inner wall is damaged, the water in the main chamber of the flywheel housing will be colored. If the outer wall is damaged, the water in the placement box 3 will be colored. At this time, the approximate location can be determined by observing where the colored water flows out. The colored water will then color the leak gaps, thus quickly and accurately finding the leak point and quickly identifying the production defect. Finally, the water in the main chamber of the flywheel housing is colored. If the main chamber of the flywheel housing is damaged, the water in the placement box 1 will be contaminated.

[0026] like Figure 1 , Figure 2 , Figure 4 As shown, the driving component includes an electric slide rail 10 fixedly connected to the placement frame 3 and a slider 11 slidably connected to the electric slide rail 10. The slider 11 is fixedly connected to one end of the positioning plate 6. When it is necessary to control the movement of the positioning plate 6, the electric slide rail 10 can be opened, so that the slider 11 on the electric slide rail 10 moves, thereby driving the positioning plate 6 away from or closer to the paint tank 4.

[0027] like Figure 1 , Figure 4 As shown, the middle section of the hose 9 is spirally arranged. When the positioning plate 6 is close to the paint tank 4, it can prevent the hose 9 from entering the placement frame 3 and coming into contact with the water in the placement frame 3. This would prevent the water in the placement box 1 from entering the flywheel housing when the positioning plate 6 moves, resulting in the failure of the leak test.

[0028] like Figure 1 , Figure 4 , Figure 5As shown, the positioning assembly includes two positioning posts 12 slidably connected to the positioning plate 6, four rotating plates 13 rotatably connected to the positioning posts 12, and two pressing plates 14 rotatably connected to the four rotating plates 13 on the same side. The four rotating plates 13 on the same side are connected to the pressing plates 14 on the same side in pairs. The other end of the pressing plate 14 is rotatably connected to the two rotating plates 13 on the opposite side. An automatic winding device 15 is fixedly connected to the side of the placement box 1 near the placement frame 3. A pull rope 16 is fixedly connected to the coil spring of the automatic winding device 15. The other end of the pull rope 16 is fixedly connected to the same side. On the side positioning post 12, when the positioning plate 6 is driven by the electric slide rail 10, the pull rope 16 is pulled out from the automatic winding device 15, and the coil spring inside the automatic winding device 15 begins to deform. Then the pull ropes 16 on both sides will pull the two positioning posts 12 away from each other. When the two positioning posts 12 are away from each other, they will drive the rotating plate 13 to rotate around the axis of the positioning post 12, and drive the two extrusion plates 14 to move closer to each other to fix the dripper head 8. In this way, the dripper head 8 can be fixed in the working state, and the position of the dripper head 8 can be moved easily when adjusting the state.

[0029] like Figures 4-5 As shown, a rubber plate 17 is fixedly connected to one side of the two extrusion plates 14, which can improve the ability of the extrusion plates 14 to fix the drip head 8.

[0030] like Figure 1 , Figure 4 As shown, a guide wheel 18 is rotatably connected to the positioning plate 6. The guide wheel 18 is in contact with the pull rope 16. Because of the presence of the guide wheel 18, when the positioning column 12 is pulled, the direction of the force is perpendicular, so that it can move more smoothly on the positioning plate 6, and at the same time, it is convenient for the pull rope 16 to come out from the automatic winding device 15.

[0031] like Figures 2-4 As shown, magnetic blocks 19 are fixedly connected to both sides of the dripper 8, and magnetic strips 20 are fixedly connected to both sides of the slide groove 7. The magnetic blocks 19 and the magnetic strips 20 on the same side attract each other. This setting can increase the damping force of the dripper 8 moving in the slide groove 7, so as to facilitate the fine adjustment of the position of the dripper 8.

[0032] like Figure 1 , Figure 6As shown, several electric push rods 21 are fixedly connected to both sides inside the placement box 1. A clamp body 22 is fixedly connected to the output end of the electric push rod 21 on the same side. Two turntables 23 are slidably connected to the clamp body 22. Two turntables 24 are slidably connected to the turntables 23. Two turntables 25 are slidably connected to the turntables 24. The two clamp bodies 22 are symmetrically arranged. After the flywheel housing is restricted to the elastic sealing block 2, the electric push rods 21 on both sides are activated to move them forward. When the turntables 25 contact the outer wall of the flywheel housing, the turntables 25 will slide on the turntables 24, the turntables 24 will slide on the turntables 23, and the turntables 23 will slide on the clamp body 22. Finally, the turntables 25 will fit against the outer wall of the flywheel housing. At this time, the electric push rods 21 continue to move forward, which can fix the flywheel housing and keep it flat to prevent it from tipping over during the leak test.

[0033] Working principle: When leak testing of the flywheel housing is required, first place the flywheel housing in the placement frame 3, ensuring the elastic sealing block 2 seals the through hole of the flywheel housing. Then, activate the electric push rods 21 on both sides to move them forward. When the third turntable 25 contacts the outer wall of the flywheel housing, the third turntable 25 will slide on the second turntable 24, the second turntable 24 will slide on the first turntable 23, and the first turntable 23 will slide on the clamp body 22, ultimately causing the third turntable 25 to fit against the outer wall of the flywheel housing. At this point, the electric push rod 21 continues to move forward, thus fixing the flywheel housing. Then, manually adjust each... Adjust the dripper 8 to the desired position, then pour water into the placement frame 3 until it submerges the flywheel housing. Then drain the water so that the liquid level is slightly below the flywheel housing. After this, wait for the liquid level to return to normal, then activate the electric slide rail 10 to move the positioning plate 6 away from the paint tank 4 until it reaches the upper side of the cavity closest to the paint tank 4. As the positioning plate 6 moves, the pull rope 16 will be pulled out from the automatic winder 15, causing the coil spring inside the automatic winder 15 to deform. Subsequently, the pull ropes 16 on both sides will pull the two positioning posts 12 away from each other. When the two positioning posts 12 are far apart, The rotating plate 13 rotates around the axis of the positioning column 12, causing the two extrusion plates 14 to move closer together and fix the dripper 8. At this time, the solenoid valve 5 of the dripper 8 is opened, allowing the pigment in the pigment tank 4 to drip from the dripper 8 through the hose 9 and mix with the water in this cavity for coloring. After a period of time, the water in the main cavity of the flywheel housing is checked for contamination. If there is no contamination, the positioning plate 6 is controlled to move to the next cavity. When it moves to the upper side of the next cavity, the solenoid valve 5 of the dripper 8 is opened, allowing the pigment in the pigment tank 4 to drip from the dripper 8 through the hose 9. The dripper 8 drips down and mixes with the water in the next chamber, staining it. After standing for a period of time, if the inner wall is damaged, the water in the main chamber of the flywheel housing will be stained. If the outer wall is damaged, the water in the placement box 3 will be stained. At this time, the approximate location can be determined by observing where the colored water flows out. Subsequently, the colored water will stain the leak gap, thus quickly and accurately finding the leak point and quickly identifying the production defect. Finally, the water in the main chamber of the flywheel housing will be stained. If the main chamber of the flywheel housing is damaged, the water in the placement box 1 will be contaminated.

[0034] This allows for reduced experimental errors during leak testing, ensuring experimental stability, accurately locating leak points when leaks occur, quickly identifying production defects, and precisely positioning the flywheel housing during leak testing to prevent displacement of the flywheel housing during the test.

[0035] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A multi-cavity leak testing device, comprising a placement box (1) and an elastic sealing block (2) fixedly connected to the bottom side of the placement box (1), characterized in that: A placement frame (3) is fixedly connected to one side of the placement box (1). Several pigment cans (4) are snapped onto the placement frame (3). A solenoid valve (5) is fixedly connected to each of the pigment cans (4). A positioning plate (6) is slidably connected to the placement box (1). A groove (7) is provided on the positioning plate (6). Several droppers (8) are slidably connected in the groove (7). A hose (9) is fixedly connected to the other end of the solenoid valve (5). The other ends of the hoses (9) are respectively fixedly connected to the droppers (8). A driving component for driving the positioning plate (6) to slide is provided on the placement frame (3). A positioning component for preventing the droppers (8) from shifting is provided on the positioning plate (6) and the placement box (1).

2. The multi-cavity leak testing device according to claim 1, characterized in that: The drive assembly includes an electric slide rail (10) fixedly connected to the placement frame (3) and a slider (11) slidably connected to the electric slide rail (10). The slider (11) is fixedly connected to one end of the positioning plate (6).

3. The multi-cavity leak testing device according to claim 1, characterized in that: The middle section of the hose (9) is spirally arranged.

4. The multi-cavity leak testing device according to claim 2, characterized in that: The positioning assembly includes two positioning posts (12) slidably connected on the positioning plate (6), four rotating plates (13) rotatably connected on the positioning posts (12), and two extrusion plates (14) rotatably connected on the four rotating plates (13) on the same side. The four rotating plates (13) on the same side are connected to the extrusion plates (14) on the same side in pairs. The other end of the extrusion plate (14) is rotatably connected to the two rotating plates (13) on the opposite side. An automatic winding device (15) is fixedly connected to the side of the placement box (1) near the placement frame (3). A pull rope (16) is fixedly connected to the coil spring of the automatic winding device (15). The other end of the pull rope (16) is fixedly connected to the positioning post (12) on the same side.

5. A multi-cavity leak testing device according to claim 4, characterized in that: The two extrusion plates (14) are fixedly connected to a rubber plate (17) on one side close to each other.

6. The multi-cavity leak testing device according to claim 4, characterized in that: The positioning plate (6) is rotatably connected to a guide wheel (18), and the guide wheel (18) is in contact with the pull rope (16).

7. The multi-cavity leak testing device according to claim 1, characterized in that: The drip head (8) is fixedly connected to magnetic blocks (19) on both sides, and magnetic strips (20) are fixedly connected to both sides of the slide groove (7). The magnetic blocks (19) and the magnetic strips (20) on the same side attract each other.

8. The multi-cavity leak testing device according to claim 1, characterized in that: Several electric push rods (21) are fixedly connected to both sides inside the placement box (1). The output end of the electric push rod (21) on the same side is fixedly connected to the clamp body (22). Two turntables (23) are slidably connected to the clamp body (22). Two turntables (24) are slidably connected to the turntables (23). Two turntables (25) are slidably connected to the turntables (24). The clamp body (22) is symmetrically arranged.

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