Filter element convenient to replace for gear box
The design of the limiting mechanism enables convenient installation and removal of the filter element inside the gearbox, solving the problems of cumbersome filter element replacement and insufficient sealing in the existing technology, simplifying the operation steps and improving the sealing performance.
Patent Information
- Application Number
- CN202423200539.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Replacing existing filter elements in the gearbox requires disassembling the filter cartridge, which may result in improper installation of the seals, leading to oil leaks or other issues. Furthermore, the disassembly process is cumbersome, increasing maintenance time and workload.
The filter element is conveniently disassembled and installed by rotating the threaded tube and the inner column, avoiding the application of external force to the semi-circular ring. The elasticity of the spring releases the locking rod, simplifying the filter element replacement process, and the locking rod fixes the filter element to ensure a seal.
It simplifies the filter replacement process, ensures a tight seal after replacement, prevents oil leakage and impurities from entering, and improves operational convenience and reliability.
Smart Images

Figure CN223622145U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter element technology, and in particular to a gearbox filter element that is easy to replace. Background Technology
[0002] A transmission is a key component in a car, primarily used to achieve optimal power and fuel economy by changing the gear ratio between the engine and the wheels, thus ensuring the best possible power and fuel efficiency. It adjusts the relationship between engine speed and wheel speed according to vehicle speed and load requirements by changing the gear ratio.
[0003] In existing technologies, when the filter element is installed in the transmission, it is usually located inside the filter cartridge. When the filter element is removed from the filter cartridge for replacement, the entire filter cartridge needs to be disassembled. If the seals are not properly installed during each disassembly and reassembly, oil leakage or leakage may occur, which may damage the internal components of the transmission. At the same time, the process of completely disassembling the filter cartridge may be cumbersome, increasing maintenance time and workload, especially when operating in a confined space. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a gearbox filter element that is easy to replace.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a replaceable gearbox filter element, comprising: a main body mechanism, wherein a limiting mechanism is provided at the bottom end of the main body mechanism, the main body mechanism includes a filter cylinder, wherein a threaded tube is provided on the inner wall of the filter cylinder, the inner wall of the filter cylinder is threadedly connected to the outer side of the threaded tube, a conical block is provided at the top end of the threaded tube, the top end of the threaded tube is fixedly connected to the bottom end of the conical block, a semi-circular ring is provided on the outer side of the conical block, and the outer side of the conical block is perpendicularly slidingly contacting one end of the inner side of the semi-circular ring.
[0006] In a preferred embodiment, the limiting mechanism includes a throttle, a cross plate is provided at the top of the throttle, the top of the throttle is fixedly connected to the bottom of the cross plate, an inner post is provided on the outer side of the cross plate, and the outer side of the cross plate is slidably connected to the inner wall of the bottom end of the inner post.
[0007] In a preferred embodiment, a limit rod is provided at the top of the throttle, the top of the throttle is fixedly connected to the bottom of the limit rod, and the outer side of the top of the limit rod is engaged with the inner wall of the bottom of the threaded tube.
[0008] In a preferred embodiment, a spring sheet is provided on the inner side of the semicircular ring, and one end of the spring sheet is fixedly connected to the inner side of the semicircular ring. An arc-shaped plate is provided on the other end of the spring sheet, and one end of the arc-shaped plate is fixedly connected to the other end of the spring sheet.
[0009] In a preferred embodiment, the inner surface of the threaded tube is rotatably connected to the outer side of the inner column, and a connecting rod is provided on one side of the inner column, with one side of the inner column being fixedly connected to one end of the connecting rod.
[0010] In a preferred embodiment, one end of the connecting rod is provided with an inner plate, one end of the connecting rod is fixedly connected to one side of the inner plate, and the outer side of the inner plate is rotatably in contact with the inner side of the semicircular ring.
[0011] In a preferred embodiment, the outer side of the inner plate is in sliding contact with the arc-shaped plate, and a locking rod is provided at one end of the inner side of the arc-shaped plate, with one end of the inner side of the arc-shaped plate being fixedly connected to one end of the locking rod.
[0012] In a preferred embodiment, a filter element body is provided on the outer side of the semicircular ring, the outer side of the semicircular ring is engaged with the inner surface of the filter element body, and the outer side of the filter element body fits with the inner surface of the filter cartridge.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. Rotate the threaded tube so that the cone block no longer exerts external force on the semi-circular ring. At this point, the two semi-circular rings in different directions will be loosened, and naturally, no more external force will be added from the inside of the filter element body. Then, rotate the inner column so that the inner plate is no longer in contact with the arc plate. At this point, the spring will release elastically and disengage the locking rod on the arc plate from the filter element body. Then, the filter element body can be removed from the filter cartridge. This method does not require disassembling the entire filter cartridge, which significantly simplifies the filter element replacement process. At the same time, it can ensure that after the filter element is replaced, the new filter element can better seal with the filter cartridge.
[0015] 2. Rotating the threaded tube causes the cone block to exert external force on the semicircular block, allowing the two semicircular rings to expand outward and initially fix them from the inside of the filter element body. Subsequently, rotating the inner column causes the inner plate to fit against the arc plate. When the arc plate is subjected to pressure, it will move, and the locking rod on the arc plate will enter the filter element to prevent it from loosening due to vibration or fluid pressure during operation. Users can easily fix the filter element. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a gearbox filter element that is easy to replace, as provided by this utility model.
[0017] Figure 2 This is a side sectional view of the main structure of a gearbox filter element that is easy to replace, as provided by this utility model.
[0018] Figure 3 This is a schematic diagram showing the disassembled structure of the main mechanism components of a gearbox filter element that is easy to replace, as provided by this utility model.
[0019] Figure 4 This utility model provides a schematic diagram of the main structure components of a gearbox filter element that is easy to replace.
[0020] Figure 5 This is an enlarged structural diagram of a limiting mechanism assembly for a gearbox filter element that is easy to replace, provided by this utility model.
[0021] Legend:
[0022] 1. Main body; 11. Filter cartridge; 12. Filter element body; 13. Threaded tube; 14. Conical block; 15. Semicircular ring; 16. Inner plate; 17. Inner column; 18. Arc plate; 19. Spring piece; 110. Locking rod; 111. Connecting rod;
[0023] 2. Limiting mechanism; 21. Throttle; 22. Limiting rod; 23. Cross plate. Detailed Implementation
[0024] 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.
[0025] Example 1: As Figures 1-5As shown, this utility model provides a technical solution: a replaceable gearbox filter element, comprising: a main body 1, a limiting mechanism 2 at the bottom of the main body 1, a filter cylinder 11, a threaded tube 13 on the inner wall of the filter cylinder 11, the inner wall of the filter cylinder 11 being threadedly connected to the outer side of the threaded tube 13, a cone block 14 at the top of the threaded tube 13, the top of the threaded tube 13 being fixedly connected to the bottom of the cone block 14, a semi-circular ring 15 on the outer side of the cone block 14, the outer side of the cone block 14 being perpendicularly slidingly contacting one end of the inner side of the semi-circular ring 15, a spring piece 19 on the inner side of the semi-circular ring 15, the inner side of the semi-circular ring 15 being fixedly connected to one end of the spring piece 19, and an arc-shaped plate 18 at the other end of the spring piece 19, the other end of the spring piece 19 being connected to the arc-shaped plate 18. One end is fixedly connected, the inner surface of the threaded tube 13 is rotatably connected to the outer side of the inner column 17, a connecting rod 111 is provided on one side of the inner column 17, one side of the inner column 17 is fixedly connected to one end of the connecting rod 111, an inner plate 16 is provided at one end of the connecting rod 111, one end of the connecting rod 111 is fixedly connected to one side of the inner plate 16, the outer side of the inner plate 16 is rotatably contacted with the inner side of the semi-circular ring 15, the outer side of the inner plate 16 is slidably contacted with the arc plate 18, a locking rod 110 is provided at one end of the inner side of the arc plate 18, one end of the inner side of the arc plate 18 is fixedly connected to one end of the locking rod 110, a filter element body 12 is provided on the outer side of the semi-circular ring 15, the outer side of the semi-circular ring 15 is locked with the inner surface of the filter element body 12, and the outer side of the filter element body 12 fits with the inner surface of the filter cartridge 11.
[0026] In this embodiment, when the easily replaceable gearbox filter element is installed inside the gearbox, it is located inside the filter cartridge 11. Therefore, when it is necessary to conveniently replace the filter element body 12 from the filter cartridge 11, the threaded tube 13 is rotated so that the cone block 14 no longer exerts external force on the semi-circular ring 15. At this point, the two semi-circular rings 15 in different directions are loosened. At the same time, since the semi-circular rings 15 do not have any components that generate external force, they naturally no longer exert external force from the inside of the filter element body 12. At this point, the inner column 17 is rotated so that the inner plate 16 is no longer in contact with the arc plate 18. Then, the spring piece 19 will release elastically and disengage the locking rod 110 on the arc plate 18 from the filter element body 12. Subsequently, the filter element body 12 can be removed from the filter cartridge 11. This method does not require disassembling the entire filter cartridge 11, which significantly simplifies the filter element replacement process. At the same time, it can ensure that after the filter element is replaced, the new filter element can better seal with the filter cartridge 11, preventing oil leakage or impurities from entering the filter cartridge 11.
[0027] Secondly, when the original filter element is replaced, rotating the threaded tube 13 causes the cone block 14 to exert external force on the semicircular block, allowing the two semicircular rings 15 to expand outward and initially fix it from the inside of the filter element body 12. Subsequently, rotating the inner column 17 causes the inner plate 16 to fit against the arc plate 18. When the arc plate 18 is under pressure, it will move, and the locking rod 110 on the arc plate 18 enters the filter element to prevent it from loosening due to vibration or fluid pressure during operation. Users can easily fix the filter element without complicated auxiliary tools.
[0028] Example 2: Figures 2-5 As shown, the limiting mechanism 2 includes a throttle 21, a cross plate 23 is provided at the top of the throttle 21, the top of the throttle 21 is fixedly connected to the bottom of the cross plate 23, an inner post 17 is provided on the outer side of the cross plate 23, the outer side of the cross plate 23 is slidably connected to the inner wall of the bottom end of the inner post 17, a limiting rod 22 is provided at the top of the throttle 21, the top of the throttle 21 is fixedly connected to the bottom end of the limiting rod 22, and the outer side of the top of the limiting rod 22 is engaged with the inner wall of the bottom end of the threaded tube 13.
[0029] In this embodiment, after the inner column 17 has rotated, pushing the handle 21 upwards causes the cross plate 23 to engage with the inner column 17. During this process, the limiting rod 22 enters the threaded tube 13, thereby fixing the inner column 17 after rotation and ensuring that the inner plate 16 and the arc plate 18 remain in a stable position. This prevents the inner plate 16 and the arc plate 18 from moving due to vibration or pressure changes during operation, enhancing the stability and reliability of the system. Furthermore, it allows users to easily fix the column by simply pushing the handle 21 upwards, reducing cumbersome steps during installation and improving user convenience and efficiency.
[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A replaceable filter element for a gearbox, characterized in that, include: The main body (1) has a limiting mechanism (2) at its bottom end. The main body (1) includes a filter cylinder (11). The inner wall of the filter cylinder (11) is provided with a threaded tube (13). The inner wall of the filter cylinder (11) is threadedly connected to the outer side of the threaded tube (13). The top end of the threaded tube (13) is provided with a cone block (14). The top end of the threaded tube (13) is fixedly connected to the bottom end of the cone block (14). The outer side of the cone block (14) is provided with a semi-circular ring (15). The outer side of the cone block (14) and the inner side of the semi-circular ring (15) slide vertically in contact.
2. The easily replaceable gearbox filter element according to claim 1, characterized in that: The limiting mechanism (2) includes a throttle (21), a cross plate (23) is provided at the top of the throttle (21), the top of the throttle (21) is fixedly connected to the bottom of the cross plate (23), an inner column (17) is provided on the outside of the cross plate (23), and the outside of the cross plate (23) is slidably connected to the inner wall of the bottom of the inner column (17).
3. The easily replaceable gearbox filter element according to claim 2, characterized in that: The top of the throttle (21) is provided with a limit rod (22), the top of the throttle (21) is fixedly connected to the bottom of the limit rod (22), and the outer side of the top of the limit rod (22) is engaged with the inner wall of the bottom of the threaded tube (13).
4. The easily replaceable gearbox filter element according to claim 1, characterized in that: The inner side of the semicircular ring (15) is provided with a spring piece (19), and the inner side of the semicircular ring (15) is fixedly connected to one end of the spring piece (19). The other end of the spring piece (19) is provided with an arc plate (18), and the other end of the spring piece (19) is fixedly connected to one end of the arc plate (18).
5. A replaceable gearbox filter element according to claim 1, characterized in that: The inner surface of the threaded tube (13) is rotatably connected to the outer side of the inner column (17). A connecting rod (111) is provided on one side of the inner column (17), and one side of the inner column (17) is fixedly connected to one end of the connecting rod (111).
6. A replaceable gearbox filter element according to claim 5, characterized in that: One end of the connecting rod (111) is provided with an inner plate (16), and one end of the connecting rod (111) is fixedly connected to one side of the inner plate (16). The outer side of the inner plate (16) is rotatably in contact with the inner side of the semicircular ring (15).
7. A replaceable gearbox filter element according to claim 6, characterized in that: The outer side of the inner plate (16) is in sliding contact with the arc plate (18), and a locking rod (110) is provided at one end of the inner side of the arc plate (18), and the inner end of the arc plate (18) is fixedly connected to one end of the locking rod (110).
8. A replaceable gearbox filter element according to claim 1, characterized in that: The outer side of the semicircular ring (15) is provided with a filter element body (12), the outer side of the semicircular ring (15) is engaged with the inner surface of the filter element body (12), and the outer side of the filter element body (12) fits with the inner surface of the filter cartridge (11).