A kind of twisted tooth fish eye structure for automobile shock absorber

Abstract

The utility model discloses a kind of for automobile shock absorber's twisted tooth fish eye structure, including outer bearing sleeve, the center of the outer bearing sleeve is formed with mounting groove, fish eye bushing assembly is assembled in the mounting groove, one end of the outer bearing sleeve is equipped with limit baffle, the fish eye bushing assembly is abutted tightly with the limit baffle cooperation;The end of the outer bearing sleeve away from the limit baffle is equipped with locking ring, the locking ring is connected with the outer bearing sleeve screw thread, and is abutted tightly with the fish eye bushing assembly cooperation, the utility model keeps stable by double limiting structure, to avoid loosening or displacement due to vibration in the process of vehicle driving, to improve the reliability of overall structure.

Description

Technical Field

[0001] This utility model relates to the field of automotive shock absorber technology, and in particular to a coilover fisheye structure for automotive shock absorbers. Background Technology

[0002] The coilover structure of an automotive shock absorber is a design that allows for variable vehicle height and suspension stiffness through thread adjustment. Its basic principle is to machine threads on the outer cylinder of the shock absorber and use a threaded seat that can rotate up and down. By rotating the threaded seat, the installation position and preload of the spring can be changed, thereby achieving vehicle height adjustment, suspension stiffness adjustment, etc. To improve the reliability and flexibility of the shock absorber connection parts, some improved technologies adopt a spherical bushing structure or a rotatable bushing design to allow the bushing to rotate within a certain angle range, absorbing angular deviation and impact loads.

[0003] In existing coilover spherical structures, the spherical bushings are prone to loosening or displacement when subjected to long-term vehicle vibration and impact, leading to decreased reliability of the connection parts, accelerated bushing wear, reduced shock absorber lifespan, and impact on the vehicle suspension system's cushioning performance and driving safety. Utility Model Content

[0004] The purpose of this invention is to provide a coilover spherical structure for automotive shock absorbers. Through a double limiting structure, the spherical bushing assembly is kept stable within the outer bearing sleeve, preventing loosening or displacement due to vibration during vehicle operation, thereby improving the overall structural reliability.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a coilover spherical structure for an automotive shock absorber, comprising an outer bearing sleeve, a mounting groove formed in the center of the outer bearing sleeve, a spherical bushing assembly assembled in the mounting groove, a limiting stop provided at one end of the outer bearing sleeve, the spherical bushing assembly being tightly fitted with the limiting stop; a locking ring provided at the end of the outer bearing sleeve away from the limiting stop, the locking ring being threadedly connected to the outer bearing sleeve and being tightly fitted with the spherical bushing assembly.

[0006] By adopting the above technical solution, the fisheye bushing assembly can be fixed in the outer bearing sleeve. The fisheye bushing assembly remains stable under the double limiting of the limiting side and the locking ring, thereby ensuring that the fisheye bushing assembly does not loosen or shift during the operation of the shock absorber.

[0007] A further feature of this invention is that the fisheye bushing assembly includes an inner bearing sleeve and a spherical movable sleeve rotatably disposed within the inner bearing sleeve.

[0008] By adopting the above technical solution, the fisheye-shaped spherical movable sleeve can rotate flexibly within the inner bearing sleeve to adapt to the angular displacement generated when the shock absorber is subjected to force, thereby maintaining the flexibility and reliability of the joint.

[0009] A further feature of this invention is that the outer bearing sleeve includes a mounting base and a first boss and a second boss respectively located at both ends of the mounting base, and the mounting groove passes through the first boss, the mounting base, and the second boss in sequence; the inner wall of the first boss is provided with an internal thread that mates with a locking ring, and the outer wall of the locking ring is provided with an external thread corresponding to the internal thread; the limiting stop is located on the second boss.

[0010] By adopting the above technical solution, the first boss and the second boss form an axial limiting structure for the mounting groove, which facilitates the assembly and positioning of the fisheye bushing assembly in the outer bearing sleeve and improves the stability of the overall structure.

[0011] A further feature of this invention is that the inner wall of the locking ring is provided with a locking groove.

[0012] By adopting the above technical solution, the locking ring can reliably engage with the special tool during the tightening process, which facilitates assembly and disassembly operations and avoids problems such as slippage or loosening caused by insufficient tightening force.

[0013] A further feature of this invention is that the external thread surface is covered with thread-locking adhesive.

[0014] By adopting the above technical solution, the connection between the locking ring and the outer bearing sleeve is tighter, preventing the locking ring from loosening due to long-term stress and vibration, thereby improving structural stability.

[0015] A further feature of this invention is that the mounting base is connected to the shock absorber via a connecting plate, and a connecting groove is formed on the connecting plate, wherein the second boss is inserted into the connecting groove.

[0016] By adopting the above technical solution, the second boss can be stably inserted into the connecting groove, realizing a reliable connection between the mounting base and the shock absorber, making the overall installation process more convenient.

[0017] A further feature of this invention is that the connecting groove is a circular slot that matches the shape of the second boss.

[0018] By adopting the above technical solution, the circular slot can form a precise fit with the second boss, thereby effectively avoiding misalignment during connection and improving the assembly accuracy and stability of the structure during use.

[0019] A further feature of this invention is that the mounting base has a plurality of first mounting holes, and the connecting plate has corresponding positioning holes, wherein the first mounting holes and the positioning holes are connected by screws.

[0020] By adopting the above technical solution, the corresponding setting of multiple mounting holes and positioning holes can ensure that the mounting base and the connecting plate are fixed at multiple points, ensure that the outer bearing sleeve and the connecting plate will not loosen, and guarantee the strength and impact resistance of the connection.

[0021] A further feature of this invention is that the connecting groove is an oblong groove, the two ends of which match the shape of the second boss, and the second boss can move between the two ends of the oblong groove.

[0022] By adopting the above technical solution, the second boss can move within a certain range in the waist-shaped slot, making the outer bearing sleeve adjustable and adaptable to different assembly requirements, thus improving the overall structural adaptability.

[0023] A further feature of this invention is that the mounting base has a plurality of second mounting holes, the connecting plate has a strip groove, the second mounting holes are arranged corresponding to the strip groove, and are connected to the strip groove by screws.

[0024] By adopting the above technical solution, since the second boss can move in the connecting groove, the fit between the second mounting hole and the strip groove can provide adjustable space during connection, so that the mounting base and the connecting plate can be fixed in different positions, which makes it convenient for users to flexibly adjust according to actual needs.

[0025] In summary, this utility model has the following beneficial effects: 1. This utility model uses a double limiting mechanism of limiting edge and locking ring to keep the spherical bushing assembly stable within the outer bearing sleeve, preventing loosening or displacement due to vibration during vehicle operation, thereby improving the overall structural reliability.

[0026] 2. This utility model is quick and easy to assemble, saving installation time and reducing operation difficulty, while ensuring accurate structural positioning and stable and reliable operation.

[0027] 3. The outer bearing sleeve and the connecting plate adopt a multi-point fixed fit, combined with the connecting groove design of circular or oblong slots, which not only achieves precise positioning, but also has a certain degree of adjustability, improving the flexibility and adaptability of installation. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of Example 1.

[0029] Figure 2 This is an exploded view of Example 1.

[0030] Figure 3 This is a cross-sectional view of Example 1.

[0031] Figure 4 This is a schematic diagram of the structure of Example 2.

[0032] Figure 5 This is an exploded view of Example 2.

[0033] Figure 6 This is a cross-sectional view of Example 2.

[0034] In the diagram: 1. Outer bearing sleeve; 11. Mounting groove; 12. Mounting base; 121. First mounting hole; 122. Second mounting hole; 13. First boss; 131. Internal thread; 14. Second boss; 141. Limiting stop; 2. Fisheye bushing assembly; 21. Inner bearing sleeve; 22. Spherical movable sleeve; 3. Locking ring; 31. External thread; 32. Locking groove; 4. Connecting plate; 41. Connecting groove; 42. Positioning hole; 43. Strip groove. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings.

[0036] Example 1: like Figures 1 to 3 As shown, this utility model discloses a coilover spherical structure for an automotive shock absorber, comprising an outer bearing sleeve 1. The outer bearing sleeve 1 includes a mounting base 12 and a first boss 13 and a second boss 14 respectively located at both ends of the mounting base 12. A mounting groove 11 is formed in the center of the outer bearing sleeve 1, and the mounting groove 11 is disposed through the first boss 13, the mounting base 12, and the second boss 14 of the outer bearing sleeve 1. The mounting groove 11 accommodates the spherical bushing assembly 2, so that it maintains a stable axial position in the outer bearing sleeve 1. A limiting stop 141 is provided at one end of the outer bearing sleeve 1, and the limiting stop 141 is integrally formed on the second boss 14. The port portion is used to limit the fisheye bushing assembly 2. The other end of the outer bearing sleeve 1 is provided with a locking ring 3 that is threadedly engaged with it. The locking ring 3 is fixed to the internal thread 131 on the inner wall of the first boss 13 by a threaded connection. After the locking ring 3 is tightened, it can abut against the fisheye bushing assembly 2, so that the fisheye bushing assembly 2 is firmly fixed under the bidirectional clamping of the limiting stop 141 and the locking ring 3. In order to improve the assembly convenience of the locking ring 3 during the tightening process, a locking groove 32 is also provided on the inner wall of the locking ring 3. The locking groove 32 can be inserted and engaged by a special tool, thereby realizing efficient and fast tightening and disassembly operations.

[0037] like Figure 2As shown, the surface of the external thread 31 of the locking ring 3 is covered with thread sealant. The thread sealant plays a sealing role in the threaded connection, which can effectively prevent the locking ring 3 from loosening under vibration, thereby ensuring a long-term stable connection between the outer bearing sleeve 1 and the fisheye bushing assembly 2.

[0038] like Figure 2 and Figure 3 As shown, the fisheye bushing assembly 2 consists of an inner bearing sleeve 21 and a spherical movable sleeve 22. The spherical movable sleeve 22 is rotatably disposed inside the inner bearing sleeve 21 and has an overall fisheye structure. Through this design, the spherical movable sleeve 22 can rotate at multiple angles within the inner bearing sleeve 21 to adapt to the angular displacement generated by the car shock absorber during the force process, so that the shock absorber joint can still maintain flexibility and reliability under complex working conditions, and avoid the problem of excessive local stress caused by rigid connection.

[0039] like Figure 2 As shown, the mounting base 12 is connected to the shock absorber body through the connecting plate 4. The connecting plate 4 has a connecting groove 41 for interlocking with the second boss 14. The second boss 14 can be precisely inserted into the connecting groove 41, thereby achieving a stable connection between the mounting base 12 and the connecting plate 4. The connecting groove 41 is designed as a circular slot, which matches the shape of the second boss 14. This ensures accurate alignment during assembly and avoids assembly difficulties or loosening caused by misalignment.

[0040] like Figure 2 As shown, the mounting base 12 is provided with a plurality of first mounting holes 121, which are evenly arranged around the axis of the mounting groove 11. The connecting plate 4 is provided with positioning holes 42 at corresponding positions. The positioning holes 42 and the first mounting holes 121 are fixed by screw connection. There are at least four first mounting holes 121 and positioning holes 42, which can form a multi-point locking effect, thereby significantly improving the connection strength and impact resistance between the mounting base 12 and the connecting plate 4.

[0041] The basic working principle of this utility model is as follows: The mounting groove 11 of the outer bearing sleeve 1 is used to accommodate the fisheye bushing assembly 2. One end of the fisheye bushing assembly 2 is abutted by the limiting stop 141, and the other end is abutted by the tightened locking ring 3, thereby fixing the fisheye bushing assembly 2 inside the outer bearing sleeve 1. When the car shock absorber is subjected to external impact load during operation, the fisheye bushing assembly 2 bears the force, and the force is transmitted to the spherical movable sleeve 22 through the inner bearing sleeve 21. The spherical movable sleeve 22 can rotate freely in the inner bearing sleeve 21, so that the joint can maintain smooth rotational connection under different directions of force. After the fisheye bushing assembly 2 is fixed, the mounting seat 12 of the outer bearing sleeve 1 needs to be connected to the shock absorber body. The second boss 14 is inserted into the connecting groove 41 formed on the connecting plate 4. The connecting groove 41 is a circular slot hole, and the second boss 14 can be directly inserted and accurately positioned. Then the connecting plate 4 is installed on the shock absorber body.

[0042] Example 2: like Figures 4 to 6 As shown, in another embodiment, the connecting groove 41 is designed as an oblong groove, that is, the two ends are circular grooves and the middle is an elongated groove 43. The two ends of the oblong groove match the shape of the second boss 14. The second boss 14 can move within a certain range in the oblong groove. Through this design, the outer bearing sleeve 1 has a certain degree of adjustability relative to the shock absorber body, which can meet the needs of different installation positions and improve the adaptability of the overall structure.

[0043] The mounting base 12 is provided with multiple second mounting holes 122, and the connecting plate 4 is provided with a strip groove 43. The second mounting holes 122 are arranged according to the strip groove 43, with at least four second mounting holes 122 in each row, and are connected to the strip groove 43 by screws. Since the second boss 14 can be adjusted in position within the waist-shaped groove, the mounting base 12 and the connecting plate 4 can be fixed in different positions, which is convenient for users to flexibly adjust according to actual needs and achieve a stable connection.

[0044] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A coilover spherical structure for an automotive shock absorber, comprising an outer bearing sleeve (1), wherein a mounting groove (11) is formed at the center of the outer bearing sleeve (1), characterized in that: The mounting groove (11) is equipped with a fisheye bushing assembly (2). One end of the outer bearing sleeve (1) is provided with a limiting stop (141). The fisheye bushing assembly (2) is in a tight fit with the limiting stop (141). The end of the outer bearing sleeve (1) away from the limiting stop (141) is provided with a locking ring (3). The locking ring (3) is threadedly connected to the outer bearing sleeve (1) and is in a tight fit with the fisheye bushing assembly (2).

2. The coilover spherical structure for an automotive shock absorber according to claim 1, characterized in that: The fisheye bushing assembly (2) includes an inner bearing sleeve (21) and a spherical movable sleeve (22) rotatably disposed within the inner bearing sleeve (21).

3. The coilover spherical structure for an automotive shock absorber according to claim 1, characterized in that: The outer bearing sleeve (1) includes a mounting base (12) and a first boss (13) and a second boss (14) respectively provided at both ends of the mounting base (12). The mounting groove (11) passes through the first boss (13), the mounting base (12) and the second boss (14) in sequence. The inner wall of the first boss (13) is provided with an internal thread (131) that cooperates with the locking ring (3). The outer wall of the locking ring (3) is provided with an external thread (31) that corresponds to the internal thread (131). The limiting stop (141) is provided on the second boss (14).

4. The coilover spherical structure for an automotive shock absorber according to claim 1, characterized in that: The inner wall of the locking ring (3) is provided with a locking groove (32).

5. A coilover fisheye structure for an automotive shock absorber according to claim 3, characterized in that: The surface of the external thread (31) is covered with thread-locking adhesive.

6. A coilover spherical structure for an automotive shock absorber according to claim 3, characterized in that: The mounting base (12) is connected to the shock absorber via a connecting plate (4). A connecting groove (41) is formed on the connecting plate (4), and the second boss (14) is inserted into the connecting groove (41).

7. A coilover spherical structure for an automotive shock absorber according to claim 6, characterized in that: The connecting groove (41) is a circular slot that matches the shape of the second boss (14).

8. A coilover spherical structure for an automotive shock absorber according to claim 6, characterized in that: The mounting base (12) is provided with a plurality of first mounting holes (121), and the connecting plate (4) is provided with corresponding positioning holes (42). The first mounting holes (121) and the positioning holes (42) are connected by screws.

9. A coilover spherical structure for an automotive shock absorber according to claim 6, characterized in that: The connecting groove (41) is a waist-shaped slot, the two ends of which match the shape of the second boss (14), and the second boss (14) can move between the two ends of the waist-shaped slot.

10. A coilover spherical structure for an automotive shock absorber according to claim 6, characterized in that: The mounting base (12) is provided with a plurality of second mounting holes (122), and the connecting plate (4) is provided with a strip groove (43). The second mounting holes (122) are arranged in accordance with the strip groove (43) and are connected to the strip groove (43) by screws.

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