Control arm bushing

Abstract

The utility model discloses a control arm bushing which comprises an inner supporting pipe, a first annular damping sleeve, a second annular damping sleeve and a third annular damping sleeve are connected to the outer side of the inner supporting pipe in a sleeved mode, the first annular damping sleeve is connected to the outer surface of the upper end of the inner supporting pipe in a sleeved mode, and the second annular damping sleeve is connected to the outer surface of the middle end of the inner supporting pipe in a sleeved mode. The outer surface of the lower end of the inner supporting pipe is sleeved with a third annular damping sleeve, the outer surface of the lower end of the inner supporting pipe is in threaded connection with an annular concave sleeve, the inner side surface of the upper end of the annular concave sleeve is in threaded connection with the outer surface of the lower end of the inner supporting pipe, and a sliding groove is formed in the inner side surface of the lower end of the inner supporting pipe; after the annular damping sleeve is installed in a sleeved mode, the bottom of the annular damping sleeve is locked and fixed through the annular concave sleeve installed in a threaded mode, the annular concave sleeve is positioned through the clamping pieces, the annular concave sleeve cannot be twisted and slipped, installation is stable, and replacement is convenient while assembly and disassembly are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the control arm bushing field more specifically, relate to a control arm bushing. BACKGROUND

[0002] During the driving process of the automobile, the chassis suspension will shake and vibrate, in order to avoid the relative movement and interference between the parts during the shaking and vibrating process of the suspension, and also to avoid the impact and vibration from the outside, a bushing is usually installed on the control arm, thereby playing a protection role. The bushing needs to have elasticity and damping, can absorb, store and release energy, not only can reduce wear and tear, but also is convenient to replace, and has a certain shock absorption function, the control arms on the automobile shock absorber are connected by the bushing, when the vehicle passes through the bumpy road, high-frequency vibration will be generated, in addition to the shock absorber and the tire can absorb the vibration, various suspension bushings can also absorb part of the vibration, thereby avoiding the transmission of the vibration into the cockpit as much as possible, and improving the comfort performance of the vehicle.

[0003] In the prior art, like the application publication no. CN118219731A, the present application relates to the technical field of automobile parts product processing and production, and discloses a control arm bushing structure, which comprises an inner support pipe and a shock absorbing block sleeved on the outer periphery of the inner support pipe. The shock absorbing block is of a split structure and comprises at least two shock absorbing parts. According to the shock absorbing requirement, any shock absorbing part can be replaced. The shock absorbing block of the split structure can replace a part of the shock absorbing block with different hardness according to the shock absorbing requirement of the vehicle model, thereby saving production cost.

[0004] In the above-mentioned patent, the shock absorbing part adopts a detachable structure, which is unstable in installation. The bottom is positioned by a positioning ring, which cannot guarantee firm fixation without loosening, is unstable in installation, and cannot guarantee convenient disassembly and replacement. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the utility model aims to provide a control arm bushing. After the annular shock absorbing sleeve is installed in a sleeving mode, the bottom is locked and fixed by the annular concave sleeve installed in a threaded mode, and the annular concave sleeve is positioned by the clamping piece, so that the annular concave sleeve cannot be twisted and loosened, the installation is stable, the assembly and disassembly are convenient, and the replacement is facilitated.

[0006] To solve the above problems, the utility model adopts the following technical scheme.

[0007] A control arm bushing, comprising an inner support tube, a first annular damping sleeve, a second annular damping sleeve, and a third annular damping sleeve sleeved on the outer edge of the inner support tube, the first annular damping sleeve being sleeved on the upper end outer surface of the inner support tube, the second annular damping sleeve being sleeved on the middle end outer surface of the inner support tube, the third annular damping sleeve being sleeved on the lower end outer surface of the inner support tube, a threaded annular recessed sleeve being connected to the lower end outer surface of the inner support tube, the upper end inner side surface of the annular recessed sleeve being connected to the lower end outer surface of the inner support tube by threading, a sliding groove being arranged on the lower end inner side surface of the inner support tube, a spring and a clamping positioning block being slidingly connected in the sliding groove, and the outer end of the clamping positioning block being clamped to the inner side surface of the annular recessed sleeve.

[0008] Further, a clamping hole is formed on one side of the annular recessed sleeve, and the outer clamping end of the clamping positioning block is clamped to the inner side surface of the clamping hole.

[0009] Further, the inner support tube adopts a convex tube structure, the lower end outer surface of the inner support tube is provided with external threads, and the upper end inner side surface of the annular recessed sleeve is provided with internal threads.

[0010] Further, the clamping positioning block adopts a convex circular block structure.

[0011] Further, the upper surface of the annular recessed sleeve is extruded on the lower surface of the third annular damping sleeve.

[0012] Further, the first annular damping sleeve, the second annular damping sleeve, and the third annular damping sleeve adopt rubber annular damping sleeves (a rubber damping bushing is a mechanical component made of rubber material, mainly used for reducing friction, damping, and providing flexible connection, which is usually composed of rubber and metal skeleton, the rubber part provides elasticity and sealing, and the metal skeleton enhances the strength and stability of the bushing, the working principle of the rubber damping bushing depends on the elasticity and damping characteristics of the rubber material, which can effectively absorb and disperse vibration and impact force, thereby reducing the wear and noise of equipment during operation).

[0013] Further, the inner side surfaces of the first annular damping sleeve, the second annular damping sleeve, and the third annular damping sleeve are tightly fitted on the outer surface of the inner support tube.

[0014] Compared with the prior art, the control arm bushing has the following advantages:

[0015] (1) After the annular damping sleeve is sleeved and installed, the annular recessed sleeve at the bottom is locked and fixed by threading, and the annular recessed sleeve is positioned by the clamping piece, so that it cannot be twisted and slipped, the installation is stable, the assembly and disassembly are convenient, and the replacement is facilitated. Attached Figure Description

[0016] Figure 1 This is a first schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a second schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model;

[0019] Figure 4 This is a first schematic diagram of the annular concave sleeve of this utility model;

[0020] Figure 5 This is a second schematic diagram of the annular recess of this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 1 Inner support tube, 2 First annular shock absorber sleeve, 3 Second annular shock absorber sleeve, 4 Third annular shock absorber sleeve, 5 Annular concave sleeve, 6 Grass skid, 7 Spring, 8 Snap-fit ​​positioning block, 9 Snap-fit ​​hole. Detailed Implementation

[0023] 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.

[0024] Example 1: Please refer to Figures 1-5 A control arm bushing includes an inner support tube 1. A first annular damping sleeve 2, a second annular damping sleeve 3, and a third annular damping sleeve 4 are sleeved on the outer edge of the inner support tube 1. The first annular damping sleeve 2 is sleeved on the upper outer surface of the inner support tube 1, the second annular damping sleeve 3 is sleeved on the middle outer surface of the inner support tube 1, and the third annular damping sleeve 4 is sleeved on the lower outer surface of the inner support tube 1. An annular recess 5 is threadedly connected to the lower outer surface of the inner support tube 1. The upper inner surface of the annular recess 5 is threadedly connected to the lower outer surface of the inner support tube 1. A groove 6 is provided on the lower inner surface of the inner support tube 1. A spring 7 and a snap-fit ​​positioning block 8 are slidably connected within the groove 6. The outer end of the snap-fit ​​positioning block 8 is snapped onto the inner surface of the annular recess 5. By using a sleeved installation of the annular damping sleeve, the bottom is locked and fixed by the threaded annular recess, and the snap-fit ​​positioning prevents the annular recess from twisting or slipping, ensuring stable installation and facilitating easy assembly, disassembly, and replacement.

[0025] A snap-fit ​​hole 9 is provided on one side of the annular recess 5, and the outer snap-fit ​​end of the snap-fit ​​positioning block 8 snaps into the inner surface of the snap-fit ​​hole 9; this facilitates snap-fit ​​positioning.

[0026] The inner support tube 1 adopts a convex tube structure, and its lower outer surface is provided with external threads. The upper inner surface of the annular sleeve 5 is provided with internal threads. When installing the annular sleeve 5, it is installed by twisting along the lower end of the inner support tube 1. The internal thread of the inner surface of the annular sleeve 5 is connected to the external thread at the lower end of the inner support tube 1, which is convenient for fixing.

[0027] The snap-fit ​​positioning block 8 adopts a convex circular block structure, which facilitates snap-fit ​​fixing.

[0028] The upper surface of the annular concave sleeve 5 is pressed against the lower surface of the third annular damping sleeve 4; after locking, the compression is firm, and the first annular damping sleeve 2, the second annular damping sleeve 3, and the third annular damping sleeve 4 can be compressed and locked.

[0029] The first annular shock absorber sleeve 2, the second annular shock absorber sleeve 3, and the third annular shock absorber sleeve 4 are made of rubber annular shock absorbers; they are wear-resistant and highly elastic (a rubber shock absorber bushing is a mechanical component made of rubber material, mainly used to reduce friction, dampen vibration, and provide flexible connections. It is usually composed of rubber and a metal skeleton. The rubber part provides elasticity and sealing, while the metal skeleton enhances the strength and stability of the bushing. The working principle of the rubber shock absorber bushing relies on the elasticity and damping characteristics of the rubber material, which can effectively absorb and disperse vibration and impact forces, thereby reducing wear and noise during equipment operation); the inner surfaces of the first annular shock absorber sleeve 2, the second annular shock absorber sleeve 3, and the third annular shock absorber sleeve 4 are tightly fitted to the outer surface of the inner support tube 1; the fit is tight and the installation is firm;

[0030] In use, a first annular shock absorber 2 is fitted onto the upper outer surface of the inner support tube 1, a second annular shock absorber 3 is fitted onto the middle outer surface of the inner support tube 1, and a third annular shock absorber 4 is fitted onto the lower outer surface of the inner support tube 1. An annular recess 5 is threadedly connected to the lower outer surface of the inner support tube 1, and the upper inner surface of the annular recess 5 is threadedly connected to the lower outer surface of the inner support tube 1. The upper surface of the annular recess 5 presses against the lower surface of the third annular shock absorber 4. After locking, the compression is firm, and the first annular shock absorber 2, the second annular shock absorber 3, and the third annular shock absorber 4 can be compressed and locked. The installation is firm, preventing the annular recess 5 from twisting, slipping, or loosening. A groove 6 is provided on the lower inner surface of the inner support tube 1, and a spring is slidably connected in the groove 6. The spring 7 and the snap-fit ​​positioning block 8 are used. The outer end of the snap-fit ​​positioning block 8 is snapped into the inner surface of the annular recess 5. A snap-fit ​​hole 9 is provided on one side of the annular recess 5. The outer snap-fit ​​end of the snap-fit ​​positioning block 8 is snapped into the inner surface of the snap-fit ​​hole 9. This facilitates snap-fit ​​positioning. After twisting and installing, the snap-fit ​​hole 9 and the snap-fit ​​positioning block 8 coincide. The snap-fit ​​positioning block 8 is popped out by the spring 7 and can be snapped into the snap-fit ​​hole 9 for positioning. Its annular recess 5 will not twist or slip. When disassembling, a screwdriver is inserted along the snap-fit ​​hole 9 to squeeze the snap-fit ​​positioning block 8 out of the snap-fit ​​hole 9. At this time, the screwdriver can be directly twisted in the snap-fit ​​hole 9 to rotate and remove the annular recess 5. The first annular shock absorber 2, the second annular shock absorber 3, and the third annular shock absorber 4 can be taken out from the bottom for replacement. Replacement is convenient.

[0031] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A control arm bushing comprising an inner support tube (1), characterized in that: The outer side of the inner support pipe (1) is sleeved with a first annular shock absorbing sleeve (2), a second annular shock absorbing sleeve (3) and a third annular shock absorbing sleeve (4). The upper end of the inner support pipe (1) is sleeved with the first annular shock absorbing sleeve (2). The middle end of the inner support pipe (1) is sleeved with the second annular shock absorbing sleeve (3). The lower end of the inner support pipe (1) is sleeved with the third annular shock absorbing sleeve (4). The lower end of the inner support pipe (1) is threadedly connected with an annular concave sleeve (5). The upper end of the annular concave sleeve (5) is threadedly connected to the lower end of the inner support pipe (1). The lower end of the inner support pipe (1) is provided with a sliding groove (6). The sliding groove (6) is slidably connected with a spring (7) and a clamping positioning block (8). The outer end of the clamping positioning block (8) is clamped to the inner side of the annular concave sleeve (5).

2. A control arm bushing according to claim 1, characterized in that: One side of the annular concave sleeve (5) is provided with a clamping hole (9). The outer clamping end of the clamping positioning block (8) is clamped to the inner side of the clamping hole (9).

3. A control arm bushing according to claim 1, characterized in that: The inner support pipe (1) adopts a convex pipe structure. The lower end of the inner support pipe (1) is provided with external threads. The upper end of the annular concave sleeve (5) is provided with internal threads.

4. A control arm bushing according to claim 1, characterized in that: The clamping positioning block (8) adopts a convex circular block structure.

5. A control arm bushing as in claim 1, wherein: The upper surface of the annular concave sleeve (5) is pressed against the lower surface of the third annular shock absorbing sleeve (4).

6. A control arm bushing according to claim 1, characterized in that: The first annular shock absorbing sleeve (2), the second annular shock absorbing sleeve (3) and the third annular shock absorbing sleeve (4) adopt rubber annular shock absorbing sleeves.

7. A control arm bushing according to claim 1, characterized in that: The inner side of the first annular shock absorbing sleeve (2), the second annular shock absorbing sleeve (3) and the third annular shock absorbing sleeve (4) is tightly attached to the outer surface of the inner support pipe (1).

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