Shock absorber lifting ring structure

Abstract

The utility model relates to the technical field of shock absorbers, and discloses a shock absorber hanging ring structure which comprises a hanging ring and a lining, a fixing groove is formed in the middle of the hanging ring in the axial direction, the lining can penetrate into the fixing groove, the lining comprises a lining pipe and a plastic sleeve wrapping the outer wall of the lining pipe, and lips are arranged at the two ends of the hanging ring. The lining penetrating into the fixing groove can be fixed in the lifting ring through the riveting lip; a metal guide pipe on the outer wall of the lining is omitted, so that the press-fitting force value is greatly reduced, the lining can be installed in the fixing groove without a special hydraulic machine, then the lips at the two ends of the hanging ring are riveted, the two ends of the fixing groove are sealed through the lips, and then the lining can be fixedly installed in the fixing groove. And moreover, the riveting lip can prevent the bushing from displacing or loosening in the working process of the shock absorber, the riveting process is simple and convenient to operate, a complex large tool is not needed, the dependence on equipment is greatly reduced, the assembly time is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of shock absorber technology, specifically to a shock absorber lifting ring structure. Background Technology

[0002] In a suspension system, vibrations are generated by the elastic elements under impact. To improve ride comfort, shock absorbers are installed in parallel with the elastic elements. To dampen vibrations, hydraulic shock absorbers are commonly used in automotive suspension systems. Their working principle is that when relative motion occurs between the vehicle frame (or body) and the axle due to vibration, the piston inside the shock absorber moves up and down. The oil in the shock absorber chamber repeatedly flows from one chamber to another through different orifices. The friction between the orifice walls and the oil, as well as the internal friction between oil molecules, creates a damping force on the vibration, converting the vehicle's vibration energy into oil heat energy, which is then absorbed by the shock absorber and dissipated into the atmosphere.

[0003] The prior art discloses (Publication No.: CN203248585U) a shock absorber lifting ring, comprising a lifting ring base welded and fixed to the shock absorber assembly, an elastic bushing fixed in the inner hole of the lifting ring base, a nylon tube fixed in the inner hole of the elastic bushing, and a metal tube, wherein the metal tube is rotatably installed in the inner cavity of the nylon tube. In use, when the torque around the axis of the lifting ring base is greater than the static friction between the inner surface of the nylon tube and the outer circumferential surface of the metal tube, the metal tube will rotate relative to the nylon tube, thereby ensuring that the elastic bushing does not bear excessive torsional load and achieving the purpose of protecting the elastic bushing.

[0004] However, existing technology uses metal sleeves on the outside of the bushings and presses them in an interference fit manner, which requires special tooling such as a special hydraulic press to complete the assembly. This makes the assembly of the bushing and the lifting ring difficult and the production efficiency low. To address this issue, we propose a shock absorber lifting ring structure to solve the above problems. Utility Model Content

[0005] The present invention aims to provide a shock absorber lifting ring structure to solve the problems of difficult assembly of bushing and lifting ring and low production efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a shock absorber lifting ring structure, including a lifting ring and a bushing, wherein a fixing groove is provided in the middle of the lifting ring along the axial direction, and the bushing can be inserted into the fixing groove. The bushing includes an inner liner tube and a plastic sleeve wrapped around the outer wall of the inner liner tube. Both ends of the lifting ring are provided with lips, and the bushing inserted into the fixing groove can be fixed in the lifting ring by riveting the lips.

[0007] Because existing technology uses metal sleeves to press-fit bushings and lifting rings through interference fit, workers need to use special hydraulic presses to perform the pressing, and the lifting rings are prone to cracking or the bushings are deformed during the pressing process.

[0008] In this solution, by eliminating the metal conduit on the outer wall of the bushing, the pressing force is significantly reduced. The bushing can be inserted into the fixing groove without the need for a special hydraulic press. Then, by riveting the lips at both ends of the lifting ring, the lips close the two ends of the fixing groove, thus fixing the bushing in the fixing groove. Moreover, riveting the lips can prevent the bushing from shifting or loosening during the operation of the shock absorber. The riveting process is simple to operate and does not require complex large tooling. Ordinary riveting tooling or even manual tools can be used to complete the process, greatly reducing dependence on equipment, shortening assembly time, and improving production efficiency.

[0009] Preferably, as an improvement, the lip after riveting is rounded.

[0010] The beneficial effects are as follows: the shock absorber will generate vibration and stress during frequent operation, which will cause stress concentration due to sharp edges, resulting in metal fatigue cracking of the riveting lip. The smooth transition after rounding can distribute stress evenly, effectively improve the fatigue resistance of the lifting ring structure and extend its service life.

[0011] Preferably, the height of the lip opening is set to 3-6mm.

[0012] Preferably, as an improvement, it also includes a fixing component, which includes a sliding sleeve, a first rubber ring, and a limiting ring. The limiting ring is disposed on the inner wall of the fixing groove, the sliding sleeve is slidably disposed on the outer wall of the plastic sleeve, and the sliding sleeve can abut against the limiting ring. The outer wall of the end of the plastic sleeve away from the limiting ring has an annular mounting groove, the first rubber ring is disposed in the mounting groove, and the end of the sliding sleeve near the first rubber ring has a compression ring, which is located in the mounting groove and can squeeze the first rubber ring out of the mounting groove and abut against the inner wall of the fixing groove.

[0013] The beneficial effects are as follows: the sliding sleeve moves on the outer wall of the plastic sleeve by contacting the limiting ring, thereby driving the extrusion ring to squeeze the first rubber ring and squeeze the first rubber ring out of the mounting groove, and tightly abut against the inner wall of the fixing groove, forming friction in the radial direction, and fixing the bushing and the lifting ring at one time, ensuring a stable connection between the bushing and the lifting ring, and preventing the bushing from loosening even under high-intensity vibration conditions.

[0014] Preferably, as an improvement, the outer wall of the end of the plastic sleeve away from the mounting groove is provided with an extrusion groove, the sliding sleeve is wrapped around the outer wall of the extrusion groove, and the sliding sleeve can be exposed by moving the extrusion groove, and a second rubber ring is compressed in the extrusion groove.

[0015] The beneficial effects are as follows: by moving the sliding sleeve to expose the extrusion groove, the second rubber ring expands under the action of elastic deformation until it fits tightly against the inner wall of the fixing groove, thereby fixing the bushing and the lifting ring for a second time and further preventing the bushing from loosening.

[0016] Preferably, as an improvement, the inner wall of the sleeve is provided with a traction ring that extends into the extrusion groove, and the traction ring is in contact with the second rubber ring.

[0017] The beneficial effects are as follows: when the sliding sleeve moves, the traction ring extending into the extrusion groove pulls the second rubber ring out of the extrusion groove, thereby ensuring that the second rubber ring fits tightly against the inner wall of the fixed groove, preventing the second rubber ring from getting stuck in the extrusion groove. At the same time, the second rubber ring can increase the friction between the sliding sleeve and the plastic sleeve, ensuring that the sliding sleeve will not move before it comes into contact with the limiting ring. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the shock absorber lifting ring of Embodiment 1 of this utility model;

[0019] Figure 2 This is a cross-sectional view of the lifting ring in Embodiment 1 of this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the lifting ring and bushing in Embodiment 1 of this utility model;

[0021] Figure 4 This is a cross-sectional structural diagram of the lifting ring and bushing in Embodiment 2 of this utility model. Detailed Implementation

[0022] The following detailed description illustrates the specific implementation method:

[0023] The reference numerals in the accompanying drawings of the instruction manual include: shock absorber 1, lifting ring 2, bushing 3, fixing groove 4, inner liner tube 5, plastic sleeve 6, lip 7, sliding sleeve 8, first rubber ring 9, limiting ring 10, mounting groove 11, compression ring 12, compression groove 13, second rubber ring 14, and traction ring 15.

[0024] Example 1

[0025] Example 1 is basically as shown in the appendix. Figures 1-3 As shown, Figure 1 The shock absorber lifting ring structure shown includes lifting rings 2 and bushings 3 symmetrically arranged at both ends of the shock absorber 1, as follows: Figure 2 The lifting ring 2 shown has a fixing groove 4 axially formed in the middle, and the bushing 3 can be inserted into the fixing groove 4. Both the upper and lower ends of the lifting ring 2 are integrally formed with lips 7. The height of the lips 7 is set to 3-6mm. Of course, the height of the lips 7 can also be set according to the actual situation, such as... Figure 3 The bushing 3 shown includes an inner liner tube 5 and a plastic sleeve 6 wrapped around the outer wall of the inner liner tube 5. The bushing 3, which is inserted into the fixing groove 4, can be fixed in the lifting ring 2 by riveting the lip 7. The riveted lip 7 is rounded.

[0026] The specific implementation process is as follows:

[0027] By eliminating the metal conduit on the outer wall of the bushing 3, the pressing force is significantly reduced. The bushing 3 can be installed into the fixing groove 4 without the need for a special hydraulic press. Then, by riveting the lips 7 at both ends of the lifting ring 2, the lips 7 close the two ends of the fixing groove 4, thus fixing the bushing 3 in the fixing groove 4. Moreover, riveting the lips 7 can prevent the bushing 3 from shifting or loosening during the operation of the shock absorber 1. The riveting process is simple to operate and does not require complex large tooling. Ordinary riveting tooling or even manual tools can be used to complete the process, greatly reducing the dependence on equipment, shortening the assembly time, and improving production efficiency.

[0028] Example 2

[0029] Example 2 is based on the same principle as Example 1, except that it also includes a fixing component, such as... Figure 4 The fixing assembly shown includes a sliding sleeve 8, a first rubber ring 9, and a limiting ring 10. The limiting ring 10 is integrally formed on the inner wall of the fixing groove 4. The sliding sleeve 8 is slidably mounted on the outer wall of the plastic sleeve 6 with a small gap. The friction between the sliding sleeve 8 and the plastic sleeve 6 is greater than the friction between the sliding sleeve 8 and the inner wall of the lifting ring 2. The upper end of the sliding sleeve 8 can abut against the lower end of the limiting ring 10. The lower outer wall of the plastic sleeve 6 has an annular mounting groove 11. The first rubber ring 9 is fitted and installed in the mounting groove 11. The lower end of the sliding sleeve 8 has an integrally formed extrusion ring 12 that extends into the mounting groove 11 and can hold the first rubber ring 9 in place. The ring 9 is extruded to form an installation groove 11 that abuts against the inner wall of the fixing groove 4. The upper outer wall of the plastic sleeve 6 is provided with an extrusion groove 13. The upper end of the sliding sleeve 8 is wrapped around the outer wall of the extrusion groove 13, and the sliding sleeve 8 can be moved to expose the extrusion groove 13. The second rubber ring 14 is sleeved inside the extrusion groove 13, and the second rubber ring 14 is in a compressed state and abuts against the inner wall of the sliding sleeve 8. The inner wall of the sliding sleeve 8 is integrally formed with a traction ring 15 that extends into the extrusion groove 13, and the traction ring 15 is in contact with the second rubber ring 14. The cross section of the traction ring 15 is a right triangle, and the end of the traction ring 15 that abuts against the second rubber ring 14 is rounded.

[0030] During use, as the worker inserts the bushing 3 into the lifting ring 2, the sliding sleeve 8 abuts against the limiting ring 10. At this time, the bushing 3 is not fully inserted into the lifting ring 2. As the worker further pushes the bushing 3, the sliding sleeve 8 moves downward along the outer wall of the plastic sleeve 6, thereby driving the compression ring 12 to compress the first rubber ring 9 located in the mounting groove 11 until the first rubber ring 9 abuts against the inner wall of the fixing groove 4 to form a first fixation. As the sliding sleeve 8 moves downward, the second rubber ring 14 expands out of the compression groove 13 under the action of the traction ring 15 until the second rubber ring 14 abuts against the inner wall of the fixing groove 4 to form a second fixation. Finally, the bushing 3 is fixedly installed in the fixing groove 4 by riveting the lip 7 to form a third fixation, ensuring the firmness of the connection between the bushing 3 and the lifting ring 2.

[0031] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A shock absorber lifting ring structure, characterized in that: It includes a lifting ring and a bushing. The lifting ring has a fixing groove in the middle along the axis. The bushing can be inserted into the fixing groove. The bushing includes an inner liner tube and a plastic sleeve wrapped around the outer wall of the inner liner tube. Both ends of the lifting ring are provided with lips. The bushing inserted into the fixing groove can be fixed in the lifting ring by riveting the lips.

2. The shock absorber lifting ring structure according to claim 1, characterized in that: The lip is rounded after riveting.

3. The shock absorber lifting ring structure according to claim 2, characterized in that: The height of the lip opening should be set to 3-6mm.

4. The shock absorber lifting ring structure according to claim 3, characterized in that: It also includes a fixing component, which includes a sliding sleeve, a first rubber ring, and a limiting ring. The limiting ring is located on the inner wall of the fixing groove, the sliding sleeve is slidably located on the outer wall of the plastic sleeve, and the sliding sleeve can abut against the limiting ring. The outer wall of the end of the plastic sleeve away from the limiting ring has an annular mounting groove. The first rubber ring is located in the mounting groove. The end of the sliding sleeve near the first rubber ring has a compression ring, and the compression ring is located in the mounting groove and can squeeze the first rubber ring out of the mounting groove and abut against the inner wall of the fixing groove.

5. A shock absorber lifting ring structure according to claim 4, characterized in that: The outer wall of the plastic sleeve away from the mounting groove has an extrusion groove. The sliding sleeve is wrapped around the outer wall of the extrusion groove, and the sliding sleeve can be moved to expose the extrusion groove. A second rubber ring is compressed inside the extrusion groove.

6. A shock absorber lifting ring structure according to claim 5, characterized in that: The inner wall of the sliding sleeve is provided with a traction ring that extends into the extrusion groove, and the traction ring is in contact with the second rubber ring.

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