Dismounting device for oil filter

By designing an oil filter removal device with a sleeve and a screw extrusion mechanism, the slippage problem during oil filter removal is solved, achieving stable and convenient removal operation, and applicable to filters of various sizes.

CN223820480UActive Publication Date: 2026-01-23ZHEJIANG BILUNTE AUTO PARTS CO LTD
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Patent Information

Application Number
CN202520381392.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-01-23
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

Existing oil filters are prone to slippage during disassembly, making operation difficult, especially since the original manufacturer applied significant torque during installation, making effective disassembly challenging.

Method used

An oil filter removal device was designed, including a sleeve and a squeezing screw. The sleeve is provided with a threaded groove and a side plate. The squeezing screw is connected through the threaded groove and can match the flat groove of the filter to increase the contact area. It can be used with a pry bar or a long-handled screwdriver to achieve stable disassembly.

Benefits of technology

It enables stable disassembly of the oil filter, avoids slippage, is easy to operate and applicable to filters of different sizes, and improves disassembly efficiency and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a dismounting device for an oil filter, which relates to the technical field of dismounting tools and comprises a filter, a plurality of plane grooves are arranged on the outer wall of the top end of the filter, the dismounting device is sleeved at the positions of the plane grooves of the filter, and the dismounting device comprises a sleeve. A plurality of equidistant threaded grooves are formed in the top end of the side wall of the sleeve in a penetrating mode, extrusion screws are in threaded connection with the interiors of the threaded grooves, side edge plates are fixed to the inner walls of the two sides, located in the threaded grooves, of the sleeve, and when the filter is disassembled, a disassembling device can be arranged on a support in a sleeving mode and is matched with rotation of a thin pinch bar or a long-rod screwdriver, so that the filter is disassembled. And the dismounting work can be easily completed, the operation is simple and convenient, and the slipping condition cannot occur. And the arranged dismounting device can be used for dismounting filters of more sizes after sleeving, the use universality of the device is improved, and the problem that oil filters of different sizes of different vehicles cannot be used in a matched mode is solved.
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Description

Technical Field

[0001] This utility model relates to the field of disassembly tools, and in particular to an oil filter disassembly device. Background Technology

[0002] The oil filter is a component on a vehicle that filters impurities from the engine oil. When it leaves the factory, it is installed on the vehicle by a threaded connection using professional installation equipment. To facilitate replacement by the owner during vehicle maintenance at a repair shop, the outer wall of the filter is polygonal, away from the connection point, so that it can be disassembled using tools during maintenance work.

[0003] In the process of realizing this solution, the inventors discovered the following problems in the existing technology that have not been well resolved: Even if the polygonal part can be disassembled with tools, the surface of the filter housing is smooth, and the combination of gear belt and wrench used by repair workers can easily cause slippage. In addition, the torque when the vehicle is installed by the original manufacturer is relatively large, which also increases the slippage of the oil filter when disassembling it, making the disassembly work more troublesome. Utility Model Content

[0004] The main purpose of this utility model is to provide an oil filter disassembly device, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An oil filter disassembly device includes a filter. The outer wall of the top of the filter has several planar grooves. A disassembly device is fitted onto the filter at the position of each planar groove. The disassembly device includes a sleeve. Several equidistant threaded grooves are drilled through the top of the sleeve's side wall. Each threaded groove is threaded with a compression screw. Side plates are fixed to the inner walls of the sleeve at the positions of the threaded grooves. Limiting grooves are drilled at the top and bottom of the side walls of each side plate. Abutment blocks are provided between adjacent side plates. Limiting sliders are fixed to the side walls of the abutment blocks at the positions of the limiting grooves. Outer blocks are fixed to the bottom of the outer walls of the sleeve at adjacent insertion holes. Through holes are drilled through the outer blocks.

[0007] Preferably, the end of the limiting slider away from the abutment block is slidably connected to the limiting groove.

[0008] Preferably, each of the abutment blocks has a hole drilled at the end near the extrusion screw.

[0009] Preferably, one end of the extrusion screw that passes through the threaded groove is inserted into the interior of the insertion hole, and the inner diameter of the insertion hole matches the outer diameter of the extrusion screw.

[0010] Preferably, the side of the abutment block away from the threaded groove contacts the matching planar groove sidewall on the filter.

[0011] Preferably, the inner diameter formed between the side plates is larger than the outer diameter of the filter.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. When disassembling the filter, the disassembly device can be attached to the bracket set, and the disassembly work can be easily completed by rotating it with a thin pry bar or a long screwdriver. The operation is simple and convenient, and there will be no slippage.

[0014] 2. The included disassembly device allows for the disassembly of filters of various sizes after assembly, increasing the device's versatility and avoiding the problem of incompatibility between oil filters of different sizes used in different vehicles. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an oil filter disassembly device according to the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of an oil filter disassembly device according to the present invention;

[0017] Figure 3 This is a partial exploded view of the disassembly device of the oil filter disassembly device according to the present invention;

[0018] Figure 4 This is an enlarged structural diagram of point A of the oil filter disassembly device of this utility model.

[0019] In the diagram: 1. Filter; 11. Flat groove; 2. Disassembly device; 21. Sleeve; 22. Threaded groove; 23. Side plate; 24. Limiting slide groove; 25. Abutting block; 26. Limiting slider; 27. Insertion hole; 28. Extrusion screw; 29. ​​Outer block; 210. Perforation. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figure 1-4As shown, an oil filter disassembly device includes a filter 1. The top outer wall of the filter 1 is provided with several planar grooves 11. A disassembly device 2 is sleeved on the filter 1 at the position of the planar grooves 11. The disassembly device 2 includes a sleeve 21. Several equally spaced threaded grooves 22 are drilled through the top of the side wall of the sleeve 21. Each threaded groove 22 is threaded with a pressing screw 28. Side plates 23 are fixed on both sides of the inner wall of the sleeve 21 at the position of the threaded grooves 22. Limiting grooves 24 are drilled at the top and bottom of the side wall of the side plate 23. Abutment blocks 25 are provided between two adjacent side plates 23. Limiting sliders 26 are fixed on both sides of the abutment blocks 25 at the position of the limiting grooves 24. An outer block 29 is fixed on the bottom of the outer wall of the sleeve 21 at the position of the adjacent insertion hole 27. Through holes 210 are drilled through the outer block 29.

[0022] Specifically, the end of the limiting slider 26 away from the abutment block 25 is slidably connected to the limiting groove 24. The abutment block 25 is drilled with insertion holes 27 at the end near the extrusion screw 28. The end of the extrusion screw 28 that passes through the threaded groove 22 is inserted into the insertion hole 27. The inner diameter of the insertion hole 27 matches the outer diameter of the extrusion screw 28. The rotation of the extrusion screw 28 can abut the abutment block 25 and move it horizontally towards the position near the plane groove 11.

[0023] Specifically, the side of the abutment block 25 away from the threaded groove 22 contacts the side wall of the matching flat groove 11 on the filter 1, so that the disassembly device 2 can be installed to adapt to the disassembly of filters 1 of different sizes.

[0024] Specifically, the inner diameter formed between several side plates 23 is larger than the outer diameter of the filter 1.

[0025] Working principle: The disassembly device 2 is fitted onto the flat groove 11 of the filter 1. The sleeve 21 is rotated according to the position of the flat groove 11, so that all or more abutment blocks 25 can contact the flat groove 11 face to face after movement. Then, the pressing screw 28 is rotated. After rotation, the pressing screw 28 will be inserted into the insertion hole 27 and move against the abutment blocks 25 towards the position of the flat groove 11 until the abutment blocks 25 contact the side wall of the flat groove 11. Multiple abutment blocks 25 contact the flat groove 11 of the filter 1, increasing the contact area required for disassembly. At this time, the filter 1 and the disassembly device 2 are assembled into one unit. A thin pry bar or a long-handled screwdriver is used to penetrate the through hole 210 and apply rotational force to it. The disassembly device 2 can drive the filter 1 to rotate, thus completing the disassembly of the filter 1.

[0026] The circuits, electronic components, and control modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An oil filter disassembly device, comprising a filter (1), characterized in that: The filter (1) has several planar grooves (11) on its top outer wall. A disassembly device (2) is fitted onto the filter (1) at the position of the planar grooves (11). The disassembly device (2) includes a sleeve (21). Several equally spaced threaded grooves (22) are drilled through the top of the side wall of the sleeve (21). Each of the threaded grooves (22) is threaded with a pressing screw (28). Side edges are fixed on both sides of the inner wall of the sleeve (21) at the position of the threaded grooves (22). The side plate (23) has a limit groove (24) carved at the top and bottom of the side wall. There is a stop block (25) between two adjacent side plates (23). The two side walls of the stop block (25) located at the limit groove (24) are fixed with limit sliders (26). The bottom of the outer wall of the sleeve (21) located at the adjacent insertion hole (27) is fixed with an outer block (29). The outer block (29) is drilled with a through hole (210).

2. The oil filter disassembly device according to claim 1, characterized in that: The end of the limiting slider (26) away from the abutment block (25) is slidably connected to the limiting groove (24).

3. The oil filter disassembly device according to claim 1, characterized in that: Each of the abutment blocks (25) has a hole (27) drilled at one end near the extrusion screw (28).

4. The oil filter disassembly device according to claim 3, characterized in that: The end of the extrusion screw (28) that passes through the threaded groove (22) is inserted into the interior of the insertion hole (27), and the inner diameter of the insertion hole (27) matches the outer diameter of the extrusion screw (28).

5. The oil filter disassembly device according to claim 1, characterized in that: The side of the abutment block (25) away from the threaded groove (22) respectively contacts the side wall of the matching planar groove (11) on the filter (1).

6. The oil filter disassembly device according to claim 1, characterized in that: The inner diameter formed between the side plates (23) is larger than the outer diameter of the filter (1).