An easy-to-remove oil filter

By designing an internal hexagonal hole and a locking wrench structure on the oil filter, the problem of difficult disassembly is solved, achieving convenient disassembly.

CN224452880UActive Publication Date: 2026-07-03FEIBI TRADING (SHANGHAI) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FEIBI TRADING (SHANGHAI) CO LTD
Filing Date
2025-09-19
Publication Date
2026-07-03

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  • Figure CN224452880U_ABST
    Figure CN224452880U_ABST
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Abstract

This utility model discloses an easy-to-disassemble oil filter, including a filter body, an internal hexagonal hole, a sleeve outer shell, an anti-slip layer, a locking layer, a locking wrench, and a locking post. Compared with the prior art, this utility model features an anti-slip layer to increase friction with the hand, and an internal hexagonal hole at the top and a locking groove on the sleeve outer shell. The filter body can be loosened using an internal hexagonal wrench or a locking wrench, and then manually unscrewed, making installation and disassembly simpler and more convenient.
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Description

Technical Field

[0001] This utility model relates to the field of oil filter technology, specifically to an oil filter that is easy to disassemble. Background Technology

[0002] Also known as an oil filter. It is used to remove impurities such as dust, metal particles, carbon deposits, and soot particles from the engine oil, protecting the engine. Engine oil and oil filter changes are usually required during vehicle maintenance. However, common oil filters are screwed directly onto the engine, and removing them often requires a properly sized filter sleeve or wrench, which can still be difficult due to limited space. Utility Model Content

[0003] In view of the problems existing in the prior art, this utility model discloses an easy-to-disassemble oil filter, including a filter body, an internal hexagonal hole, a sleeve shell, an anti-slip layer, a locking block layer, a locking block wrench, and locking posts; the filter body has an internal hexagonal hole at the top, and the sleeve shell is installed on the outer wall; the sleeve shell is divided into upper and lower layers, the lower layer is smooth, and the upper layer has an anti-slip layer on its outer wall; the locking block layer is located at the top of the sleeve shell, and its bottom is provided with external threads on the outer wall of the connection section with the sleeve shell; the outer wall of the locking block layer is provided with several protruding locking posts at equal intervals, and the locking posts form locking grooves; the locking block wrench is annular, divided into upper and lower layers, the inner wall of the upper layer is provided with internal threads, the inner wall of the lower side is in contact with the filter body, and several locking blocks that cooperate with the locking grooves on the locking block layer are evenly distributed around the lower side; the locking block wrench is screwed onto the locking block layer.

[0004] As a preferred embodiment of this utility model, the outer shell of the filter body, the outer shell of the sleeve, and the clamping wrench are all made of stainless steel.

[0005] As a preferred technical solution of this utility model, the sleeve shell and the card block layer are integrally formed, and their inner walls are both in contact with the filter body. The outer diameter of the card block layer is larger than the outer diameter of the sleeve shell.

[0006] As a preferred embodiment of this utility model, the length of the anti-slip layer is not less than one-half the length of the sleeve outer shell.

[0007] As a preferred technical solution of this utility model, the card posts on the card block layer are arranged at equal intervals around their circumferences, and the number is not less than 8.

[0008] As a preferred embodiment of this utility model, the length of the upper layer of the locking block is equal to the total length of the locking block layer.

[0009] The beneficial effects of this utility model are as follows: This utility model is equipped with an anti-slip layer to increase the friction with the hand, and at the same time, an internal hexagonal hole is provided at the top and a slot is provided on the sleeve shell. The filter body can be loosened by using an internal hexagonal wrench or a locking wrench, and then it can be unscrewed manually, making installation and disassembly simpler and more convenient. Attached Figure Description

[0010] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0011] Figure 1 This is a three-dimensional schematic diagram of the present utility model. Figure 1 ;

[0012] Figure 2 This is a three-dimensional schematic diagram of the present utility model. Figure 2 ;

[0013] Figure 3 This is a schematic diagram of the installation of the sleeve housing of this utility model;

[0014] In the diagram: 1. Filter body; 2. Hexagonal socket; 3. Sleeve housing; 4. Anti-slip layer; 5. Clamping block layer; 6. Clamping wrench; 7. Clamping post. Detailed Implementation

[0015] Example 1

[0016] like Figures 1 to 3 As shown, this utility model discloses an easy-to-disassemble oil filter, including a filter body 1, an internal hexagonal hole 2, a sleeve shell 3, an anti-slip layer 4, a locking block layer 5, a locking block wrench 6, and locking posts 7. The filter body 1 has an internal hexagonal hole 2 at the top, and a sleeve shell 3 is installed on the outer wall. The sleeve shell 3 is divided into upper and lower layers, with the lower layer being smooth and the upper layer having an anti-slip layer 4 on its outer wall. The locking block layer 5 is located at the top of the sleeve shell 3, and its bottom is provided with external threads on the outer wall of the connection section with the sleeve shell 3. The outer wall of the locking block layer 5 is provided with several protruding locking posts at equal intervals, forming locking grooves between the locking posts. The locking block wrench 6 is annular, divided into upper and lower layers. The inner wall of the upper layer is provided with internal threads, and the inner wall of the lower side is fitted with the filter body 1. Several locking blocks that cooperate with the locking grooves on the locking block layer 5 are evenly distributed around the lower side. The locking block wrench 6 is screwed onto the locking block layer 5. The outer shell of the filter body 1, the sleeve shell 3, and the locking wrench 6 are all made of stainless steel, which is corrosion-resistant and easy to clean of oil stains. The sleeve shell 3 and the locking layer 5 are integrally formed, and their inner walls are fitted to the filter body 1. The outer diameter of the locking layer 5 is larger than the outer diameter of the sleeve shell 3. It is connected to the locking wrench 6 through the bottom thread. After installation, the locking wrench 6 can be directly screwed onto the locking layer 5. When it is necessary to disassemble the filter body 1, it can be unscrewed and inserted into the locking groove for rotation.

[0017] The working principle of this utility model is as follows: During installation, after the filter body 1 is installed on the engine, the retaining wrench 6 can be screwed in the reverse direction onto the retaining block layer 5. When it is necessary to disassemble the filter body 1 for maintenance, an Allen wrench can be inserted into the top Allen hole 2 to loosen the filter body 1, and the filter body 1 can be unscrewed manually; alternatively, after unscrewing the retaining wrench 6, the retaining block can be inserted into the retaining groove of the retaining block layer 5 from above, and the filter body 1 can be loosened by rotating the retaining wrench 6. Finally, the retaining wrench 6 can be rotated or removed and the filter body 1 can be manually unscrewed for replacement.

[0018] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. An oil filter which is easy to detach, characterized by: The filter includes a filter body (1), an internal hexagonal hole (2), a sleeve shell (3), an anti-slip layer (4), a locking block layer (5), a locking block wrench (6), and locking posts (7). The filter body (1) has an internal hexagonal hole (2) on its top and a sleeve shell (3) on its outer wall. The sleeve shell (3) has two layers, with the lower layer being smooth and the upper layer having an anti-slip layer (4) on its outer wall. The locking block layer (5) is located on the top of the sleeve shell (3), and its bottom is connected to the outer wall of the sleeve shell (3) with external threads. The outer wall of the locking block layer (5) has several protruding locking posts at equal intervals, forming a locking groove between the locking posts. The locking block wrench (6) is annular and has two layers. The inner wall of the upper layer has internal threads, and the inner wall of the lower layer is in contact with the filter body (1). Several locking blocks that cooperate with the locking grooves on the locking block layer (5) are evenly distributed around the lower side. The locking block wrench (6) is screwed onto the locking block layer (5).

2. An oil filter for easy removal according to claim 1, characterized in that: The outer shell of the filter body (1), the sleeve shell (3), and the locking wrench (6) are all made of stainless steel.

3. The oil filter according to claim 1, wherein: The sleeve shell (3) and the locking layer (5) are integrally formed, and their inner walls are in contact with the filter body (1). The outer diameter of the locking layer (5) is larger than the outer diameter of the sleeve shell (3).

4. The easily disassembled oil filter according to claim 1, characterized in that: The length of the anti-slip layer (4) is not less than half the length of the sleeve shell (3).

5. The oil filter according to claim 1, wherein: The card blocks (5) are arranged at equal intervals around their circumferences, and the number of them is not less than 8.

6. An oil filter for easy removal according to claim 1, characterized in that: The upper length of the locking wrench (6) is equal to the total length of the locking layer (5).