Anti-loosening aluminum alloy filter cover
By using an anti-loosening aluminum alloy filter cover, and employing an anti-detachment mechanism and an embedded ring airbag combination structure, the problem of the oil filter falling off due to vibration during vehicle operation is solved, achieving a stable connection and sealing effect.
Patent Information
- Application Number
- CN202422479083.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-10-14
AI Technical Summary
Oil filters are prone to vibration when a car is in motion, and prolonged use may cause the filter to detach from the cover. Current technology has not been able to effectively solve this problem.
An anti-loosening aluminum alloy filter cover was designed, which adopts an anti-loosening mechanism and an embedded ring and airbag combination structure. The threaded connection and anti-loosening mechanism ensure that the filter cover is stably connected to the housing. The airbag of the embedded ring and the mating groove fills the gap to achieve a sealing effect.
It effectively prevents the filter cover from falling off the housing, ensures a stable connection, avoids leakage, and improves service life and sealing performance.
Smart Images

Figure CN223536420U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of filters, specifically to an aluminum alloy filter cover that prevents loosening. Background Technology
[0002] The oil filter cap serves to secure the filter and provide an overall seal, effectively increasing the filter media's load-bearing capacity.
[0003] There are many types of oil filter covers available, but they still have some shortcomings in use. The interface of the oil filter cover has a connecting piece inside. If you are not careful when cleaning, the connecting piece will be damaged, making the oil filter cover unusable and requiring a new oil filter cover to be installed, which results in the waste of the oil filter cover.
[0004] To overcome the above-mentioned defects, reference can be made to an oil filter cover disclosed in the prior art (Chinese patent application number CN202322529245.0, publication date 2024-05-03). The filter cover insert plate uses its own rubber plate material to seal and protect the joint, preventing dust and impurities from entering the joint when the oil filter cover is placed, thus improving the protective performance of the oil filter cover and eliminating the limitations of the use of the oil filter cover.
[0005] Although existing technologies can solve the above-mentioned defects, other problems still exist in use. Since the oil filter is installed inside the car, it will vibrate when the car is running. Prolonged use may cause the oil filter to fall off the oil filter cover, thus causing certain deficiencies in its operation.
[0006] Therefore, we proposed that an anti-loosening aluminum alloy filter cover can effectively solve the above problems. Utility Model Content
[0007] The purpose of this utility model is to provide an anti-loosening aluminum alloy filter cover to solve the problem mentioned in the background art that the oil filter currently on the market is installed in the car and will cause the oil filter to vibrate when the car is running. Long-term use may cause the oil filter to fall off the oil filter cover.
[0008] To achieve the above objectives, this utility model provides the following technical solution: an anti-loosening aluminum alloy filter cover, comprising a filter cover body that is closed on one side, the bottom end of the filter cover body being connected to the top end of the housing, and an interface for easy docking being provided at the center of the top of the filter cover body.
[0009] It also includes: a threaded block is fixed at the bottom of the filter cover, and the outer side of the threaded block is threadedly connected to the connecting cylinder fixed at the upper end of the housing;
[0010] A conical cylinder is slidably disposed on the outer side of the filter cover. Two sets of extension components are fixed on both sides of the upper end of the conical cylinder. A lifting block is fixed between the two sets of extension components. An anti-drop mechanism is fitted to the lower end of the conical cylinder. The anti-drop mechanism includes a rotating block. An embedding block is fixed at the bottom of the rotating block. The outer side of the embedding block is engaged inside the embedding groove.
[0011] As a preferred technical solution of this application, the upper middle position of the rotating block is rotatably disposed on the outside of the fixed shaft, the side wall of the fixed shaft is fixed to the surface of the filter cover, the outside of the fixed shaft is fixed to the first end of the torsion spring, and the tail end of the torsion spring is fixed to the side wall of the rotating block. The bottom position of the embedded block can be fitted into the inside of the embedded groove by rotating the rotating block.
[0012] As a preferred technical solution of this application, the embedding groove is provided with several sets of angles at the same angles about the center position of the housing, and the anti-detachment mechanism is provided with several sets of angles at the same angles about the center position of the filter cover. The anti-detachment mechanism is provided to prevent the filter cover from falling off the housing.
[0013] As a preferred technical solution of this application, the extension assembly includes a receiving cylinder fixed to the top of the conical cylinder. A set of return springs is fixed inside the receiving cylinder. The top end of the return springs is fixed to the bottom of the fixing tube, and the top end of the fixing tube is fixed to the surface of the filter cover, so that the conical cylinder can be extended through the extension assembly.
[0014] As a preferred technical solution of this application, the conical cylinder is narrowed downwards, and the center of the conical cylinder is through-hole. The lower inclined surface of the conical cylinder is attached to the upper end of the rotating block. The conical cylinder can be used to enable the rotating block to rotate through a fixed shaft.
[0015] As a preferred technical solution of this application, a set of annularly arranged embedded rings are installed on the outer side of the fixing position of the threaded block and the bottom position of the filter cover. The outer side of the embedded rings extends into the mating groove opened inside the top of the housing, so that the bottom position of the embedded rings extends into the interior of the mating groove.
[0016] As a preferred technical solution of this application, a set of annularly arranged airbags are adhered inside the mating groove. The airbags are made of rubber. By squeezing the airbags inside the mating groove through the embedded ring, the gap between the mating groove and the embedded ring can be filled.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: The anti-loosening aluminum alloy filter cover is equipped with an anti-dropping mechanism. Several sets of anti-dropping mechanisms secure the inserting blocks, which are embedded into the inserting groove, ensuring a stable connection between the filter cover and the housing, thus preventing detachment. Furthermore, the inserting ring and mating groove design allow for a sealing effect by filling the gap with an air bladder inside the mating groove. Specific details are as follows:
[0018] 1. A filter cover is provided, and the filter cover is connected to the connecting cylinder inside the housing by a threaded block fixed at the bottom of the filter cover, which can be connected to the housing.
[0019] Furthermore, an anti-detachment mechanism is provided. After the lifting block is released, the conical cylinder is reset by the reset spring set inside the extension assembly. This allows the inclined surface on the outside of the conical cylinder to press the upper end of the rotating block, which allows the rotating block to extend into the embedded block fixed at the bottom into the embedded groove, thus preventing the filter cover from detaching from the housing.
[0020] Furthermore, a lifting block is provided. By lifting the block, the rotating block can be reset and rotated via a torsion spring, which facilitates subsequent opening and processing.
[0021] 2. An embedded ring is provided. Since the bottom end of the embedded ring extends into the interior of the mating groove, the air bladder inside the mating groove can expand by compression, thereby filling the gap between the mating groove and the interior of the embedded ring and preventing leakage. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the main structure of the filter cover of this utility model;
[0024] Figure 3 This is a schematic diagram of the main structure of the housing of this utility model;
[0025] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0026] Figure 5 This is a schematic diagram of the main structure of the rotating block of this utility model;
[0027] Figure 6 This is a schematic cross-sectional view of the extension component of this utility model.
[0028] In the diagram: 1. Filter cover; 2. Housing; 3. Interface; 4. Threaded block; 5. Connecting cylinder; 6. Conical cylinder; 7. Lifting block; 8. Extension assembly; 81. Fixing tube; 82. Return spring; 83. Receiving cylinder; 9. Rotating block; 10. Fixing shaft; 11. Torsion spring; 12. Embedding block; 13. Embedding groove; 14. Embedding ring; 15. Mating groove. Detailed Implementation
[0029] 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.
[0030] Please see Figures 1-6 The present invention provides the following technical solution:
[0031] Example 1: To address the issue that current oil filters installed in automobiles vibrate during driving, potentially causing them to detach from their caps over time, please refer to the attached... Figure 1 - Appendix Figure 6The filter cover 1 is closed on one side, and its bottom end is connected to the top of the housing 2. The filter cover 1 has an interface 3 at the center of its top for easy connection. The filter cover 1 also has a threaded block 4 fixed at its bottom, and the outer side of the threaded block 4 is threadedly connected to the connecting cylinder 5 fixed at the upper end of the housing 2. A conical cylinder 6 is slidably arranged on the outer side of the filter cover 1. Two sets of extension components 8 are fixed on both sides of the upper end of the conical cylinder 6. A lifting block 7 is fixed between the two sets of extension components 8. An anti-drop mechanism is fitted at the lower end of the conical cylinder 6. The anti-drop mechanism includes a rotating block 9. An embedded block 12 is fixed at the bottom of the rotating block 9. The outer side of the embedded block 12 is engaged inside the embedded groove 13. The upper middle position of the rotating block 9 is rotatably positioned outside the fixed shaft 10. The side wall of the fixed shaft 10 is fixed to the surface of the filter cover 1. The outer side of the fixed shaft 10 is fixed to the first end of the torsion spring 11, and the tail end of the torsion spring 11 is fixed to the side wall of the rotating block 9. Several sets of embedding grooves 13 are arranged at equal angles with respect to the center of the housing 2, and several sets of anti-detachment mechanisms are arranged at equal angles with respect to the center of the filter cover 1. The interior of the extension assembly 8 includes a receiving cylinder 83 fixed to the top of the conical cylinder 6. A set of return springs 82 is fixed inside the receiving cylinder 83. The top end of the return springs 82 is fixed to the bottom of the fixed tube 81, and the top end of the fixed tube 81 is fixed to the surface of the filter cover 1. The conical cylinder 6 narrows downwards, and its center is through-hole. The lower inclined surface of the conical cylinder 6 is attached to the upper end of the rotating block 9.
[0032] When installing the filter cover 1 and housing 2, firstly, by lifting the lifting block 7, the conical cylinder 6 fixed at the bottom of the lifting block 7 will be guided and moved by the extension assembly 8. During the lifting process, the fixed tube 81 included inside the extension assembly 8 will slide inside the receiving cylinder 83 by the return spring 82. At this time, the return spring 82 is compressed. Since there is no conical cylinder 6 to limit the top of the rotating block 9, the rotating block 9 can be reset and rotated outside the fixed shaft 10 by the elastic force of the torsion spring 11. At this time, the rotating block 9 will not be in a tilted state. By rotating the filter cover 1, the threaded block 4 fixed at the bottom of the filter cover 1 can be threadedly connected to the connecting cylinder 5 opened inside the housing 2. When it can no longer rotate, by releasing the lifting block 7, the conical cylinder 6 will also be reset by the return spring 82, so that the lower end of the conical cylinder 6 presses against the upper end of the rotating block 9. The rotating block 9 will rotate through the fixed shaft 10, so that the embedded block 12 fixed at the bottom of the rotating block 9 will extend into the embedded groove 13 opened at the bottom of the housing 2. At this time, the filter cover 1 and the housing 2 can be prevented from falling off.
[0033] Example 2: To ensure a tight seal between the filter cover 1 and the housing 2, please refer to the attached document. Figure 1 - Appendix Figure 3 A set of annularly arranged embedded rings 14 are installed on the outer side of the fixing position of the threaded block 4 and the bottom of the filter cover 1. The outer side of the embedded rings 14 extends into the mating groove 15 opened inside the top of the housing 2. A set of annularly arranged air bladders made of rubber are adhered inside the mating groove 15. When the threaded connection is made, the embedded rings 14 are fixed at the threaded connection between the filter cover 1 and the threaded block 4. During the connection process, the bottom position of the embedded rings 14 can squeeze the air bladders inside the mating groove 15. The air bladders expand due to the compression, thereby filling the gap between the embedded rings 14 and the mating groove 15.
[0034] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An anti-loosening aluminum alloy filter cover, comprising a filter cover body (1) that is closed on one side, wherein the bottom end of the filter cover body (1) is also connected to the top end of the housing (2), and an interface (3) is provided at the center of the top of the filter cover body (1) for easy docking. Its features are, Also includes: A threaded block (4) is fixed at the bottom of the filter cover (1), and the outer side of the threaded block (4) is threadedly connected to the connecting cylinder (5) fixed at the upper end of the housing (2). A conical cylinder (6) is slidably disposed on the outer side of the filter cover (1). Two sets of extension components (8) are fixed on both sides of the upper end of the conical cylinder (6). A lifting block (7) is fixed between the two sets of extension components (8). An anti-dropping mechanism is fitted to the lower end of the conical cylinder (6). The anti-dropping mechanism includes a rotating block (9). An embedding block (12) is fixed at the bottom of the rotating block (9). The outer side of the embedding block (12) is engaged inside the embedding groove (13).
2. The anti-loosening aluminum alloy filter cover according to claim 1, characterized in that: The upper middle position of the rotating block (9) is rotatably set on the outside of the fixed shaft (10). The side wall of the fixed shaft (10) is fixed on the surface of the filter cover (1). The outside of the fixed shaft (10) is fixed to the head position of the torsion spring (11). The tail end of the torsion spring (11) is fixed to the side wall position of the rotating block (9).
3. The anti-loosening aluminum alloy filter cover according to claim 1, characterized in that: The embedding groove (13) is provided in several groups at equal angles with respect to the center position of the housing (2), and the anti-drop mechanism is provided in several groups at equal angles with respect to the center position of the filter cover (1).
4. The anti-loosening aluminum alloy filter cover according to claim 1, characterized in that: The interior of the extension assembly (8) includes a receiving cylinder (83) fixed to the top of the conical cylinder (6). A set of return springs (82) is fixed inside the receiving cylinder (83). The top of the return springs (82) is fixed to the bottom of the fixing tube (81), and the top of the fixing tube (81) is fixed to the surface of the filter cover (1).
5. The anti-loosening aluminum alloy filter cover according to claim 4, characterized in that: The conical tube (6) narrows downwards, and the center of the conical tube (6) is through-hole, and the lower slope of the conical tube (6) is attached to the upper end of the rotating block (9).
6. The anti-loosening aluminum alloy filter cover according to claim 1, characterized in that: A set of annularly arranged embedding rings (14) are installed on the outside of the fixing position of the threaded block (4) and the bottom position of the filter cover (1). The outside of the embedding rings (14) extends into the mating groove (15) opened inside the top of the housing (2).
7. The anti-loosening aluminum alloy filter cover according to claim 6, characterized in that: The mating groove (15) has a set of annularly arranged airbags attached inside, and the airbags are made of rubber.
Citation Information
Patent Citations
Oil filter cover
CN220890285U