Novel control arm bushing

By designing rubber components, connecting pipes, buffer springs, and anti-corrosion layers in the control arm bushing, the problems of unstable connection and wear in the existing technology have been solved, achieving stable connection and extended service life.

CN224044984UActive Publication Date: 2026-03-27ANHUI JUSHENG AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

The existing connection method of the control arm bushing is unstable, which makes the rubber parts easy to detach from the inner tube and the outer tube, affecting the shock absorption and buffering effect. In addition, the outer tube is prone to wear and has a short service life.

Method used

The design incorporates an inner tube with a rubber sleeve on the outside, a connecting tube on the outside of the rubber sleeve, a buffer spring fixedly connected to the outer surface of the connecting tube, and an anti-corrosion structure on the outer surface of the outer tube. The inner and outer tubes are connected by a convex ring and a groove. The buffer spring provides cushioning protection, and the outer tube surface is covered with an anti-corrosion, wear-resistant, and high-temperature resistant layer.

Benefits of technology

It improves the connection stability between the inner and outer tubes and the rubber parts, enhances the cushioning effect, extends the service life of the outer tube, and improves the overall practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel control arm lining, and relates to the technical field of automobile accessories. The rubber pipe comprises an inner pipe and further comprises a rubber part arranged on the outer side of the inner pipe in a sleeved mode, a connecting pipe is arranged on the outer side of the rubber part in a sleeved mode, the outer surface of the connecting pipe is fixedly connected with a buffer spring, the other end of the buffer spring is fixedly connected with an outer pipe, and a protruding ring is fixedly arranged on the inner side wall of the connecting pipe. Through the arrangement of the rubber part, the groove, the convex ring, the buffer spring and other structures, the stable connection among the inner pipe, the rubber part and the connecting pipe can be conveniently realized subsequently, so that the situation that the subsequent rubber part is separated from the inner pipe and the connecting pipe due to impact force caused by the subsequent automobile swing arm in the movement process is prevented; and meanwhile, a plurality of buffer springs fixedly connected to the outer side wall of the connecting pipe are matched, so that the purpose of buffer protection can be further achieved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, especially relates to a novel control arm bushing. BACKGROUND

[0002] With the rapid development of society, as a kind of convenient traffic tool, automobile becomes very popular in people's daily life, control arm bushing is the transition part for connecting chassis control arm and vehicle body in automobile suspension system, when working, control arm bushing two ends are connected with auxiliary frame through bolt, and it plays the role of buffering the impact of road to vehicle body.

[0003] The internal structure of the existing control arm bushing mostly includes inner tube, rubber part and outer tube, when assembling the bushing, the rubber part is mostly directly sleeved on the outer side of the inner tube, and then the outer tube is sleeved on the outer side of the rubber part, however, such connecting mode not only has poor connecting effect, but also easily causes the rubber part to move out of the inner tube and the outer tube when subsequent swing arm shakes, influences subsequent normal damping and buffering effect, and overall practicality is poor. INNOVATION CONTENT

[0004] In view of the above-mentioned shortcomings of prior art, the utility model provides a novel control arm bushing, which can effectively solve the problems of prior art.

[0005] To solve the above technical problems, the utility model is realized through the following technical schemes:

[0006] The utility model discloses a novel control arm bushing, which comprises an inner tube, a rubber part sleeved on the outer side of the inner tube, a connecting pipe sleeved on the outer side of the rubber part, a buffer spring fixedly connected to the outer surface of the connecting pipe, an outer tube fixedly connected to the other end of the buffer spring, a convex ring fixedly arranged on the inner side wall of the connecting pipe, a first recess groove arranged on the outer surface of the rubber part, a second recess groove arranged on the inner side wall of the rubber part, a clamping ring fixedly arranged on the outer surface of the inner tube and a corrosion-resistant structure arranged on the outer surface of the outer tube.

[0007] Further, the corrosion-resistant structure comprises an outer corrosion-resistant layer, a wear-resistant layer, a high-temperature-resistant layer and an inner corrosion-resistant layer, the outer corrosion-resistant layer is arranged on the outer surface of the outer tube, the wear-resistant layer is connected to the bottom of the outer corrosion-resistant layer, the high-temperature-resistant layer is connected to the bottom of the wear-resistant layer, and the inner corrosion-resistant layer is connected to the side of the high-temperature-resistant layer away from the wear-resistant layer.

[0008] Further, the buffer springs are equidistantly distributed along the center point of the connecting pipe, and the two ends of the buffer springs are fixedly connected to the connecting pipe and the outer tube respectively.

[0009] Further, the convex ring is symmetrically distributed along the transverse center line of the connecting pipe, and the outer diameter size of the convex ring is matched with the inner diameter size of the first groove.

[0010] Further, the inner diameter size of the second groove is matched with the outer diameter size of the clamping ring, and the second groove and the rubber piece form an integrated structure.

[0011] Further, the clamping ring is symmetrically distributed along the transverse center line of the inner pipe, and the clamping ring and the inner pipe form an integrated structure.

[0012] The utility model has the following beneficial effects:

[0013] 1, the utility model discloses a rubber piece, groove, convex ring and buffer spring etc. Structure is set up, can conveniently realize the stable connection between the inner pipe, rubber piece and connecting pipe subsequently, to prevent the impact force caused by subsequent automobile swing arm in the movement process from causing the subsequent rubber piece to separate from the inner pipe and connecting pipe, and further affect the normal buffering of subsequent bushing to automobile swing arm etc.

[0014] 2, the utility model discloses that the anticorrosive layer, wear -resisting layer and high temperature layer etc. Structure is set up, can conveniently improve the structural strength of outer pipe subsequently, prevents the surface of outer pipe from being subjected to greater abrasion after long -term use, and the normal service life of subsequent outer pipe is affected, and the overall practicality is higher. DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawing needed to be used in the embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0016] Figure 1 It is the utility model schematic diagram;

[0017] Figure 2 It is the utility model connecting pipe overhead schematic diagram;

[0018] Figure 3 It is the utility model rubber piece cross section schematic diagram;

[0019] Figure 4 It is the utility model outer pipe cross section schematic diagram.

[0020] In the drawings, the component list represented by each sign is as follows:

[0021] 1, inner tube; 2, rubber part; 3, connecting pipe; 4, buffer spring; 5, outer tube; 6, convex ring; 7, first groove; 8, second groove; 9, clamping ring; 10, outer corrosion-resistant layer; 11, wear-resistant layer; 12, high-temperature-resistant layer; 13, inner corrosion-resistant layer. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0023] Please refer to Figures 1-4 As shown in the figure, the utility model discloses a novel control arm bushing, including inner tube 1, still include: the rubber part 2 is sleeved on the outside of inner tube 1, and the rubber part 2 is sleeved on the outside, and the outer surface of connecting pipe 3 is fixedly connected with buffer spring 4, and the other end of buffer spring 4 is fixedly connected with outer tube 5, and buffer spring 4 is equidistantly distributed along the center point of connecting pipe 3, and the two ends of buffer spring 4 are fixedly connected with the inner side wall of outer tube 5 and the outer surface of connecting pipe 3 respectively, the inner side wall of connecting pipe 3 is fixed with convex ring 6, the position of convex ring 6 and the position of first groove 7 are on the same horizontal line, and the size of convex ring 6 is adapted to the size of first groove 7, the outer surface of rubber part 2 is provided with first groove 7, the inner side wall of rubber part 2 is provided with second groove 8, the center line position of second groove 8 and the center line position of clamping ring 9 are on the same horizontal line, and the number of first groove 7 is consistent with the number of clamping ring 9, the outer surface of inner tube 1 is fixed with clamping ring 9, and the outer surface of outer tube 5 is provided with corrosion-resistant structure;

[0024] When working, first, the rubber part 2 is sleeved on the outside of the inner tube 1, and when the two are mutually clamped, the second groove 8 opened in the inner side wall of the rubber part 2 is clamped with the clamping ring 9 symmetrically arranged on the outer surface of the inner tube 1, so that the stability of the clamped connection between the rubber part 2 and the inner tube 1 is improved, then the connecting pipe 3 is sleeved on the outside of the rubber part 2, at this time, the convex ring 6 symmetrically arranged on the inner side wall of the connecting pipe 3 is input into the inside of the second groove 8 opened on the outer surface of the rubber part 2, and the stability of the connection between the connecting pipe 3 and the rubber part 2 can be improved by the size adaptation of the convex ring 6 and the second groove 8, and since the damping ring is arranged between the connecting pipe 3 and the outer tube 5, and the damping ring and the buffer spring 4 are distributed in a flat shape, when the outer tube 5 is impacted to push the damping ring, the buffer spring 4 will also be deformed, and the buffering effect of the whole bushing during use can be further improved by using the reverse force generated by the deformation of the buffer spring 4 in cooperation with the damping ring, and the overall practicality is higher, and the effect is better.

[0025] The anticorrosion structure comprises an outer anticorrosion layer 10, a wear-resistant layer 11, a high-temperature-resistant layer 12 and an inner anticorrosion layer 13, the outer anticorrosion layer 10 is arranged on the outer surface of the outer pipe 5, the bottom of the outer anticorrosion layer 10 is connected with the wear-resistant layer 11, the bottom of the wear-resistant layer 11 is connected with the high-temperature-resistant layer 12, and the side of the high-temperature-resistant layer 12 away from the wear-resistant layer 11 is connected with the inner anticorrosion layer 13;

[0026] In operation, since the outer surface of the outer pipe 5 is provided with the outer anticorrosion layer 10 and the internal structure of the outer anticorrosion layer 10 is composed of anticorrosion material, the cooperatively arranged outer anticorrosion layer 10 can effectively anticorrosion treat the outer surface of the outer pipe 5, and the cooperatively arranged wear-resistant layer 11 can further increase the structural strength of the outer pipe 5, thereby achieving wear-resistant effect and increasing the service life of the outer pipe 5, the high-temperature-resistant layer 12 is made of nickel-based high-temperature alloy material, which has high strength and good oxidation resistance and corrosion resistance, thereby effectively increasing the service life of the bushing, and the inner anticorrosion layer 13 is arranged to effectively anticorrosion treat the inner side wall of the outer pipe 5.

[0027] The buffer springs 4 are equidistantly distributed along the center point of the connecting pipe 3, and the two ends of the buffer springs 4 are fixedly connected with the connecting pipe 3 and the outer pipe 5, respectively;

[0028] In operation, since the buffer springs 4 are equidistantly distributed along the center point of the connecting pipe 3 and the other end of the buffer springs 4 is fixedly connected with the outer pipe 5, when the outer pipe 5 extrudes the buffer springs 4 to deform, the reverse force generated by the deformation of the buffer springs 4 can conveniently achieve the purpose of subsequent buffering protection.

[0029] The convex rings 6 are symmetrically distributed along the transverse center line of the connecting pipe 3, and the outer diameter size of the convex rings 6 is adapted to the inner diameter size of the first grooves 7;

[0030] In operation, since the size of the convex rings 6 is adapted to the size of the first grooves 7, when the connecting pipe 3 is clamped and connected with the rubber piece 2, the convex rings 6 will be input to the inner side of the first grooves 7, thereby improving the stability of the clamped connection between the two.

[0031] The inner diameter size of the second grooves 8 is adapted to the outer diameter size of the clamping rings 9, and the second grooves 8 and the rubber piece 2 form an integrated structure;

[0032] In operation, the rubber piece 2 can be clamped and connected with the clamping rings 9 symmetrically arranged on the outer surface of the inner pipe 1 through the second grooves 8 symmetrically arranged on the inner side wall of the rubber piece 2, thereby improving the clamping effect between the two.

[0033] The clamping rings 9 are symmetrically distributed along the transverse center line of the inner pipe 1, and the clamping rings 9 and the inner pipe 1 form an integrated structure;

[0034] When working, since the size of the clamping ring 9 is consistent with the size of the second groove 8, when the rubber part 2 and the inner tube 1 are clamped and connected with each other, the clamping ring 9 is input to the inner side of the second groove 8, thereby improving the stability of the clamping connection between the rubber part 2 and the inner tube 1.

[0035] Working principle: first, the rubber part 2 is sleeved on the outer side of the inner tube 1, at this time, the second groove 8 is clamped with the clamping ring 9, thereby improving the stability of the clamping connection between the rubber part 2 and the inner tube 1, then the connecting pipe 3 is sleeved on the outer side of the rubber part 2, at this time, the convex ring 6 is input to the inner side of the second groove 8, and the stability of the connection between the connecting pipe 3 and the rubber part 2 is improved by the size matching of the convex ring 6 and the second groove 8, and since the damping ring is arranged between the connecting pipe 3 and the outer pipe 5, when the outer pipe 5 is impacted to push the damping ring, the buffer spring 4 is also deformed, thereby further improving the buffering effect of the whole bushing in use by using the reverse force generated by the deformation of the buffer spring 4 in cooperation with the damping ring, the overall practicality is higher, the effect is better, and in use, since the outer surface of the outer pipe 5 is provided with the outer corrosion-resistant layer 10, and the inner structure of the outer corrosion-resistant layer 10 is composed of a corrosion-resistant material, the outer corrosion-resistant layer 10 arranged in cooperation can effectively prevent the outer surface of the outer pipe 5 from being corroded, and the wear-resistant layer 11 arranged in cooperation can further increase the structural strength of the outer pipe 5, play a wear-resistant effect, and increase the service life of the outer pipe 5, and the high-temperature-resistant layer 12 is a nickel-based high-temperature alloy material with high strength and good oxidation resistance and corrosion resistance, which can effectively improve the service life of the bushing, and the inner corrosion-resistant layer 13 is arranged to effectively prevent the inner side wall of the outer pipe 5 from being corroded.

[0036] The above is only the preferred embodiment of the present application, and does not limit the present application, any modification of the technical solutions described in the above embodiments, equivalent replacement of part of the technical features, any modification, equivalent replacement, improvement, all belong to the protection scope of the present application.

Claims

1. A new control arm bushing comprising an inner tube (1), characterized in that, Also include: The outer side of the inner tube (1) is sleeved with a rubber piece (2), and the outer side of the rubber piece (2) is sleeved with a connecting pipe (3), the outer surface of the connecting pipe (3) is fixedly connected with a buffer spring (4), and the other end of the buffer spring (4) is fixedly connected with an outer pipe (5), the inner side wall of the connecting pipe (3) is fixedly provided with a convex ring (6), the outer surface of the rubber piece (2) is provided with a first groove (7), the inner side wall of the rubber piece (2) is provided with a second groove (8), the outer surface of the inner tube (1) is fixedly provided with a clamping ring (9), and the outer surface of the outer pipe (5) is provided with a corrosion-resistant structure.

2. A novel control arm bushing according to claim 1, characterized in that The corrosion-resistant structure comprises an outer corrosion-resistant layer (10), a wear-resistant layer (11), a high-temperature-resistant layer (12) and an inner corrosion-resistant layer (13), the outer corrosion-resistant layer (10) is arranged on the outer surface of the outer pipe (5), the bottom of the outer corrosion-resistant layer (10) is connected with the wear-resistant layer (11), the bottom of the wear-resistant layer (11) is connected with the high-temperature-resistant layer (12), and the side of the high-temperature-resistant layer (12) away from the wear-resistant layer (11) is connected with the inner corrosion-resistant layer (13).

3. A novel control arm bushing according to claim 1, characterized in that, The buffer springs (4) are equidistantly distributed along the center point of the connecting pipe (3), and the two ends of the buffer springs (4) are fixedly connected with the connecting pipe (3) and the outer pipe (5) respectively.

4. A novel control arm bushing according to claim 1, characterized in that, The convex rings (6) are symmetrically distributed along the transverse center line of the connecting pipe (3), and the outer diameter size of the convex rings (6) is matched with the inner diameter size of the first grooves (7).

5. A novel control arm bushing according to claim 1, characterized in that, The inner diameter size of the second grooves (8) is matched with the outer diameter size of the clamping rings (9), and the second grooves (8) and the rubber piece (2) form an integrated structure.

6. A novel control arm bushing according to claim 1, characterized in that, The clamping rings (9) are symmetrically distributed along the transverse center line of the inner tube (1), and the clamping rings (9) and the inner tube (1) form an integrated structure.