Filter sealing performance detection device

Abstract

The utility model relates to the field of filter production, in particular to a filter sealing performance detection device, which comprises a bottom plate, a water tank is fixed on the bottom plate, a sliding plate is arranged above the bottom plate, the sliding plate is driven by a test motor to move, a plurality of test cylinders are fixed on the sliding plate, a fixed plate is arranged below the sliding plate, and the fixed plate is fixed on the bottom plate. The tail ends of piston rods of the testing cylinders are fixed to the fixing plate, fixing blocks are symmetrically fixed to the two sides of the lower portion of the fixing plate, rotating shafts rotationally connected with the fixing blocks are arranged on the fixing blocks, the rotating shafts are driven by corresponding rotating motors to rotate, and a supporting plate is fixed between the two rotating shafts. Supporting grooves are evenly formed in the supporting plate, a positioning plate is further arranged on one side of the supporting plate, positioning grooves are formed in the positions, corresponding to the supporting grooves, of the positioning plate, and a plurality of electromagnets are evenly fixed to the supporting plate. The device can carry out sealing test on a plurality of filters at one time, and the test efficiency of the filters is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of filter manufacturing, and more particularly to a filter sealing performance testing device. Background Technology

[0002] An oil filter, also known as an oil strainer, is used to remove impurities such as dust, metal particles, carbon deposits, and soot particles from engine oil, protecting the engine. During filter manufacturing, it is crucial to ensure the filter housing is airtight and leak-proof. Patent application number CN201721104397.4 discloses a filter airtightness testing device, comprising: a water tank, a water level sensor, a support frame, a controller, an electric cylinder, a sealing cover, a water inlet cylinder, a support plate, a fixing cylinder, and a top frame. The key feature is that a water level sensor is affixed to the inner wall of the water tank. A support frame is fixed to the upper surface of the water tank with bolts. A controller and an electric cylinder are installed on the upper surface of the support frame with bolts. The electric cylinder is connected to a sealing cover through an air pipe. During testing, the sealing cover is connected to the oil outlet of the filter, and then the filter is placed in the support plate and put into the water. The water level rises, and when the water level reaches the water level sensor, the electric cylinder pumps air into the filter, and the water inlet cylinder stops. Then the worker observes whether there are air bubbles. However, this type of detection device can only detect one filter at a time, resulting in low detection efficiency.

[0003] This invention was proposed in response to the shortcomings of existing technologies. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a filter sealing performance testing device.

[0005] This invention can be achieved through the following technical solutions:

[0006] This invention discloses a filter sealing performance testing device, comprising a base plate, a water tank fixed on the base plate, a slide plate above the base plate driven by a test motor, multiple test cylinders fixed on the slide plate, a fixing plate below the slide plate, the piston rod ends of the test cylinders being fixed to the fixing plate, and fixing blocks symmetrically fixed on both sides below the fixing plate, each fixing block having a rotating shaft rotatably connected to it, the rotating shaft being driven by a corresponding rotating motor, a support plate fixed between two rotating shafts, the support plate having support grooves evenly distributed on it, and a positioning plate on one side of the support plate, the positioning plate being connected to the support plate. Positioning slots are provided at corresponding positions in the trough. Multiple electromagnets are evenly fixed on the support plate. Metal blocks are fixed at corresponding positions on the positioning plate. Limiting plates are fixed at both ends of the support plate. Connecting blocks are fixed at both ends of the positioning plate. Limiting rods are fixed on the limiting plates. The limiting rods pass through the connecting blocks and are slidably connected to the connecting blocks. Springs are also fixed between the limiting plates and the connecting blocks. An installation plate is also provided inside the water trough. Drain pipes are fixed at corresponding positions on the installation plate. A connecting plate is also fixed above the installation plate. Multiple lifting cylinders are also fixed on the water trough. The piston rods of the lifting cylinders are all fixed to the connecting plates. Each filter to be tested is placed between the support tank and the positioning tank. The electromagnet is energized, generating magnetism that attracts the metal block at the corresponding position. The positioning plate moves closer to the support plate, and the filter is fixed between the support and positioning plates. The test motor drives the screw to rotate, moving the slide plate above the water tank. The test cylinder is activated, extending the piston rod and lowering the fixing plate, allowing the filter to enter the water tank. Once the filter is full, the rotary motor drives the rotating shaft to rotate, turning the filter 180 degrees so its opening faces downwards. The lifting cylinder is activated, extending the piston rod and inserting the drain pipe into the filter. A certain amount of gas is pumped into each filter, draining the water. After a period of time, the water level in the tank is checked to confirm the presence of cracks in the filter. When a filter cracks, water from outside enters through the crack, causing the water level in the tank to drop. This device can perform sealing tests on multiple filters simultaneously, greatly improving the testing efficiency.

[0007] Preferably, a vertical plate is fixed to one side of the base plate, and a screw and a slide bar are provided on the vertical plate. The screw passes through the slide plate and is threadedly connected to the slide plate, and the slide bar passes through the slide plate and is slidably connected to the slide plate. The screw is fixed to the output end of the test motor.

[0008] Preferably, the water tank is also provided with graduations.

[0009] Preferably, a limit block is fixed to the end of each limiting rod.

[0010] Preferably, a lead screw is fixed to the output end of the rotary motor, a threaded tube is provided on the lead screw and threadedly connected to the lead screw, a rack is fixed to the bottom of the threaded tube, gears are fixed on the rotating shaft, the gears mesh with the racks at corresponding positions, a positioning tube is also fixed on the fixing block, and a positioning rod is also fixed on the threaded tube, the positioning rod is slidably connected to the positioning tube.

[0011] Compared with existing technologies, the present invention has the following advantages:

[0012] This device can perform sealing tests on multiple filters at once, greatly improving the testing efficiency of filters. Attached Figure Description

[0013] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0014] Figure 1 This is a schematic diagram of the structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the present invention from another angle;

[0016] Figure 3 for Figure 2 Sectional view at point AA;

[0017] Figure 4 for Figure 3 Enlarged view at point B in the middle;

[0018] In the diagram: 1. Base plate; 2. Water tank; 3. Scale; 4. Vertical plate; 5. Screw; 6. Slide rod; 7. Test motor; 8. Slide plate; 9. Test cylinder; 10. Fixing plate; 11. Fixing block; 12. Rotating shaft; 13. Support plate; 14. Support groove; 15. Positioning plate; 16. Positioning groove; 17. Electromagnet; 18. Metal block; 19. Gear; 20. Rotary motor; 21. Lead screw; 22. Threaded pipe; 23. Rack; 24. Positioning pipe; 25. Limiting plate; 26. Connecting block; 27. Limiting rod; 28. Limiting block; 29. ​​Spring; 30. Connecting plate; 31. Mounting plate; 32. Drain pipe; 33. Lifting cylinder; Detailed Implementation

[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

[0020] Example 1:

[0021] like Figures 1 to 4As shown, this embodiment discloses a filter sealing performance testing device, comprising a base plate 1, a water tank 2 fixed on the base plate 1, a slide plate 8 above the base plate 1, the slide plate 8 being driven to move by a test motor 7, multiple test cylinders 9 fixed on the slide plate 8, a fixing plate 10 below the slide plate 8, the piston rod ends of the test cylinders 9 being fixed to the fixing plate 10, fixing blocks 11 symmetrically fixed on both sides below the fixing plate 10, each fixing block 11 being provided with a rotating shaft 12 rotatably connected to the fixing block 11, the rotating shaft 12 being driven to rotate by a corresponding rotating motor 20, a support plate 13 fixed between the two rotating shafts 12, support grooves 14 evenly provided on the support plate 13, a positioning plate 15 being provided on one side of the support plate 13, the positioning plate 15 being positioned corresponding to the support grooves 14. The support plate 13 is uniformly provided with positioning grooves 16, and multiple electromagnets 17 are uniformly fixed on the support plate 13. Metal blocks 18 are fixed on the positioning plate 15 at positions corresponding to the electromagnets 17. Limiting plates 25 are fixed at both ends of the support plate 13, and connecting blocks 26 are fixed at both ends of the positioning plate 15. Limiting rods 27 are fixed on the limiting plates 25. The limiting rods 27 pass through the connecting blocks 26 and slide to connect with the connecting blocks 26. Springs 29 are also fixed between the limiting plates 25 and the connecting blocks 26. An installation plate 31 is also provided in the water tank 2. Drain pipes 32 are fixed on the installation plate 31 at positions corresponding to the support grooves 14. A connecting plate 30 is also fixed above the installation plate 31. Multiple lifting cylinders 33 are also fixed on the water tank 2. The piston rod ends of the lifting cylinders 33 are all fixed to the connecting plates 30. Each filter to be tested is placed between the support groove 14 and the positioning groove 16. The electromagnet 17 is energized, generating magnetism that attracts the metal block 18 at the corresponding position. The positioning plate 15 moves closer to the support plate 13. After the filter is fixed between the support plate 13 and the positioning plate 15, the test motor 7 drives the screw 5 to rotate, and the slide plate 8 moves above the water tank 2. The test cylinder 9 is activated, and the piston rod on the test cylinder 9 extends, causing the fixing plate 10 to descend. The filter enters the water in the water tank 2. When the filter is full of water, the rotary motor 20 drives the rotating shaft 12 to rotate. The filter rotates 180 degrees with its opening facing downwards. The lifting cylinder 33 is activated, and the piston rod on the lifting cylinder 33 extends, allowing the drain pipe 32 to enter the filter. A certain amount of gas is discharged into each filter via an air pump, draining the water from the filter. After a period of time, the liquid level in the water tank 2 is checked to confirm whether there are cracks in the filter. When a filter breaks, water from outside the filter enters through the crack, causing the liquid level in the water tank 2 to drop. This device can perform sealing tests on multiple filters at once, greatly improving the testing efficiency of the filters.

[0022] Among them, a vertical plate 4 is fixed on one side of the base plate 1. A screw 5 and a slide rod 6 are provided on the vertical plate 4. The screw 5 passes through the slide plate 8 and is threadedly connected to the slide plate 8. The slide rod 6 passes through the slide plate 8 and is slidably connected to the slide plate 8. The screw 5 is fixed to the output end of the test motor 7.

[0023] Each of the limiting rods 27 has a limiting block 28 fixed at its end.

[0024] Among them, the output end of the rotary motor 20 is fixed with a lead screw 21, and a threaded tube 22 is provided on the lead screw 21 and threadedly connected to the lead screw 21. A rack 23 is fixed at the bottom of the threaded tube 22. Gears 19 are fixed on the rotating shaft 12. The gears 19 mesh with the racks 23 at the corresponding positions. A positioning tube 24 is also fixed on the fixing block 11. A positioning rod is also fixed on the threaded tube 22. The positioning rod is slidably connected to the positioning tube 24.

[0025] Example 2:

[0026] This embodiment discloses a filter sealing performance testing device. Based on the structure and principle of Embodiment 1, the water tank 2 in this embodiment is also provided with a scale 3.

[0027] The above are merely preferred embodiments of the present invention. It should be noted that, for those skilled in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be considered within the scope of protection of the present invention.

Claims

1. A filter sealing performance testing device, comprising a base plate, characterized in that, A water tank is fixed to the base plate, and a slide plate is installed above the base plate. The slide plate is driven to move by a test motor. Multiple test cylinders are fixed to the slide plate. A fixing plate is installed below the slide plate, and the piston rod ends of the test cylinders are all fixed to the fixing plate. Fixing blocks are symmetrically fixed on both sides below the fixing plate. Each fixing block is provided with a rotating shaft rotatably connected to the fixing block. The rotating shaft is driven to rotate by a corresponding rotating motor. A support plate is fixed between two rotating shafts. Support grooves are evenly distributed on the support plate. A positioning plate is also provided on one side of the support plate, and positioning grooves are provided on the positioning plate at positions corresponding to the support grooves. The support plate is also uniformly fixed with multiple electromagnets. The positioning plate is fixed with metal blocks at positions corresponding to the electromagnets. The support plate is fixed with limit plates at both ends. The positioning plate is fixed with connecting blocks at both ends. The limit plates are fixed with limit rods. The limit rods pass through the connecting blocks and are slidably connected to the connecting blocks. A spring is also fixed between the limit plates and the connecting blocks. The water tank is also equipped with an installation plate. Drain pipes are fixed on the installation plate at positions corresponding to the support groove. A connecting plate is also fixed above the installation plate. Multiple lifting cylinders are also fixed on the water tank. The piston rods of the lifting cylinders are all fixed to the connecting plates.

2. The filter sealing performance testing device according to claim 1, characterized in that, A vertical plate is fixed to one side of the base plate. A screw and a slide bar are provided on the vertical plate. The screw passes through the slide plate and is threadedly connected to the slide plate. The slide bar passes through the slide plate and is slidably connected to the slide plate. The screw is fixed to the output end of the test motor.

3. The filter sealing performance testing device according to claim 1, characterized in that, The water tank is also equipped with graduations.

4. The filter sealing performance testing device according to claim 1, characterized in that, Each of the limiting rods has a limiting block fixed at its end.

5. The filter sealing performance testing device according to claim 1, characterized in that, The output end of the rotary motor is fixed with a lead screw, and a threaded tube is provided on the lead screw and threadedly connected to the lead screw. A rack is fixed at the bottom of the threaded tube. Gears are fixed on the rotating shaft. The gears mesh with the racks at corresponding positions. A positioning tube is also fixed on the fixing block. A positioning rod is also fixed on the threaded tube. The positioning rod is slidably connected to the positioning tube.

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