Control arm bushing

Abstract

The utility model discloses a control arm lining which comprises a lining body, the lining body is connected with an inner cylinder through an adjusting assembly, a butt joint assembly is arranged in the lining body, the control arm lining is provided with a high-strength air bag and an air nozzle, and when the lining body on the outer side of the high-strength air bag needs to be replaced, the high-strength air bag can be replaced. Air in the high-strength air bag is exhausted, then the part, on the outer side of the high-strength air bag, of the lining body is taken down and replaced with a new lining body, then the high-strength air bag is inflated through the air nozzle, and the lining body can be fixed to the outer side of the high-strength air bag through the inflated high-strength air bag; and therefore, the bushing body can be quickly replaced.

Description

Technical Field

[0001] This utility model relates to the field of control arm bushing technology, specifically a control arm bushing. Background Technology

[0002] The control arm (also known as the swing arm) is the guiding and force-transmitting element of the suspension system, responsible for transmitting various forces acting on the wheels to the vehicle body while ensuring that the wheels move along a predetermined trajectory. To better achieve this function, the control arm is typically elastically connected to the wheels and vehicle body via ball joints or bushings. This design ensures both flexibility and sufficient rigidity and strength. Therefore, the quality and performance of the control arm bushing have a significant impact on the performance of the entire suspension system.

[0003] Chinese Patent CN213973490U discloses a bushing for an automotive control arm, comprising a bushing structure. The bushing structure includes an outer frame and an inner frame coaxially disposed inside the outer frame. A rubber layer is disposed between the outer frame and the inner frame. Protective retaining rings with an inwardly concave V-shaped cross-section are provided at both ends of the bushing structure. This automotive control arm bushing, by providing protective retaining rings and limiting mechanisms at both ends of the bushing structure, allows the inwardly concave V-shaped structure of the protective retaining rings to fold inward when the outer frame is impacted, thereby avoiding the problem of the rubber layer being exposed at both ends without affecting the shock absorption function of the rubber layer. The limiting mechanism can effectively reduce the axial movement of the bushing structure after the control arm is installed, improving the stability of this utility model.

[0004] However, the above patent has the following shortcomings: Although the above technical solution can achieve the protective effect of the rubber layer, the rubber layer of this technical solution is fixedly connected to the outer skeleton and inner skeleton by vulcanization. When the rubber layer wears out, the entire bushing needs to be replaced, which increases the maintenance cost. Utility Model Content

[0005] The purpose of this invention is to provide a control arm bushing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a control arm bushing, comprising a bushing body and an inner cylinder, wherein the bushing body and the inner cylinder are connected by an adjustment component, and a docking component is provided inside the bushing body;

[0007] The adjustment assembly includes a high-strength airbag and an air nozzle. An inner cylinder is inserted into the bushing body, and a high-strength airbag is sleeved on the outside of the inner cylinder. An air nozzle is installed on the high-strength airbag.

[0008] By adopting the above technical solution, the aging bushing body can be replaced.

[0009] As a further embodiment of this utility model: the inner wall of the high-strength airbag is provided with a plurality of second concave bodies, and a second strip block is inserted into each of the second concave bodies, and the second strip block is fixedly installed to the outer wall of the inner cylinder.

[0010] By adopting the above technical solution, the stability of the connection between the bushing body and the high-strength airbag is improved.

[0011] As a further embodiment of this utility model: a plurality of first strip blocks are installed on the inner wall of the bushing body, and a first concave body is sleeved on the outer side of each first strip block, and the first concave body is fixedly installed on the outer side of the high-strength airbag.

[0012] By adopting the above technical solution, the stability of the connection between the inner cylinder and the high-strength airbag is improved.

[0013] As a further embodiment of this utility model: a first limiting body is installed on both the upper and lower outer sides of the inner cylinder, and the outer edge of the first limiting body extends to the top of the high-strength airbag.

[0014] By adopting the above technical solution, the high-strength airbag placed on the outer side of the inner cylinder detaches.

[0015] As a further embodiment of this utility model: a second limiting body is installed at both the upper and lower positions of the bushing body, and the inner edge of the second limiting body extends to the top position of the high-strength airbag.

[0016] By adopting the above technical solution, the high-strength airbag placed inside the bushing body detaches.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the control arm bushing,

[0018] Equipped with a high-strength airbag and an air nozzle, when it is necessary to replace the outer bushing of the high-strength airbag, the gas inside the high-strength airbag is released, and then the outer bushing of the high-strength airbag is removed and replaced with a new bushing. Then, the high-strength airbag is inflated through the air nozzle. The inflated high-strength airbag can fix the bushing to the outside of the high-strength airbag, thus realizing the rapid replacement of the bushing.

[0019] In addition, the control arm bushing is also provided with a first strip block, a first concave body, a second strip block, and a second concave body. When connecting the high-strength airbag and the inner cylinder, the second strip block installed on the inner wall of the high-strength airbag is inserted into the second concave body, thereby increasing the friction between the inner cylinder and the high-strength airbag. The first strip block installed on the outer side of the high-strength airbag is installed in the first concave body, thereby improving the stability of the connection between the bushing body and the high-strength airbag. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the bushing body, inner cylinder, and high-strength airbag structure of this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the bushing body and inner cylinder structure of this utility model.

[0024] In the figure: 1. Bushing body; 2. Inner cylinder; 3. High-strength airbag; 4. Air nozzle; 5. First strip block; 6. First concave body; 7. Second strip block; 8. Second concave body; 9. First limiting body; 10. Second limiting body. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-4 The present invention provides a technical solution: a control arm bushing, including a bushing body 1 and an inner cylinder 2, wherein the bushing body 1 and the inner cylinder 2 are connected by an adjustment component, and a docking component is provided inside the bushing body 1.

[0027] The adjustment assembly includes a high-strength airbag 3 and an air nozzle 4. An inner cylinder 2 is inserted into the bushing body 1, and a high-strength airbag 3 is sleeved on the outside of the inner cylinder 2. An air nozzle 4 is installed on the high-strength airbag 3.

[0028] Specifically, when it is necessary to replace the bushing body 1 on the outside of the high-strength airbag 3, the gas inside the high-strength airbag 3 is released, and then the bushing body 1 on the outside of the high-strength airbag 3 is removed and replaced with a new bushing body 1. Then, the high-strength airbag 3 is inflated through the air nozzle 4. The bushing body 1 can be fixed to the outside of the high-strength airbag 3 by the inflated high-strength airbag 3, thereby realizing the rapid replacement of the bushing body 1.

[0029] Furthermore, the inner wall of the high-strength airbag 3 is provided with a plurality of second concave bodies 8, and a second strip block 7 is inserted into each of the second concave bodies 8. The second strip blocks 7 are all fixedly installed on the outer wall of the inner cylinder 2. The inner wall of the bushing body 1 is provided with a plurality of first strip blocks 5, and a first concave body 6 is sleeved on the outer side of each of the first strip blocks 5. The first concave bodies 6 are all fixedly installed on the outer side of the high-strength airbag 3.

[0030] Specifically, when connecting the high-strength airbag 3 and the inner cylinder 2, the second strip block 7 installed on the inner wall of the high-strength airbag 3 is inserted into the second concave body 8, thereby increasing the friction between the inner cylinder 2 and the high-strength airbag 3. The first strip block 5 installed on the outer side of the high-strength airbag 3 is installed in the first concave body 6, thereby improving the stability of the connection between the bushing body 1 and the high-strength airbag 3, and ensuring the stability of the connection between the bushing body 1, the inner cylinder 2 and the high-strength airbag 3.

[0031] Furthermore, the inner cylinder 2 is equipped with first limiting bodies 9 on both the upper and lower outer sides, and the outer edge of the first limiting body 9 extends to the top of the high-strength airbag 3.

[0032] Specifically, the outer edge of the first limiting body 9 installed at the upper and lower positions of the inner cylinder 2 extends to the top position of the high-strength airbag 3, which can restrict the inner cylinder 2 inside the high-strength airbag 3.

[0033] Furthermore, a second limiting body 10 is installed at both the upper and lower positions inside the bushing body 1, and the inner edge of the second limiting body 10 extends to the top position of the high-strength airbag 3.

[0034] Specifically, the inner edge of the second limiting body 10 installed at the upper and lower positions inside the bushing body 1 extends to the top position of the high-strength airbag 3, thereby restricting the bushing body 1 installed on the outside of the high-strength airbag 3.

[0035] Working principle: When using this control arm bushing, if it is necessary to replace the bushing body 1 on the outside of the high-strength airbag 3, the gas inside the high-strength airbag 3 is released, and then the bushing body 1 on the outside of the high-strength airbag 3 is removed and replaced with a new bushing body 1. Then, the high-strength airbag 3 is inflated through the air nozzle 4. The inflated high-strength airbag 3 can fix the bushing body 1 on the outside of the high-strength airbag 3. When connecting the high-strength airbag 3 and the inner cylinder 2, the second strip block 7 installed on the inner wall of the high-strength airbag 3 is inserted into the second concave body 8, thereby increasing the friction between the inner cylinder 2 and the high-strength airbag 3. The first strip block 5 installed on the outside of the high-strength airbag 3 is in the first concave body 6, thereby improving the stability of the connection between the bushing body 1 and the high-strength airbag 3. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0037] 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. A control arm bushing comprising a bushing body (1) and an inner tube (2), characterized in that: The bush body (1) and the inner cylinder (2) are connected through an adjusting assembly, and the bush body (1) is internally provided with a docking assembly; The adjusting assembly comprises a high-strength air bag (3) and an air nozzle (4), the bush body (1) is internally inserted with the inner cylinder (2), the outer side of the inner cylinder (2) is sleeved with the high-strength air bag (3), and the high-strength air bag (3) is installed with the air nozzle (4).

2. A control arm bushing according to claim 1, characterized in that: A plurality of second concave bodies (8) are installed on the inner wall of the high-strength air bag (3), and the second concave bodies (8) are each inserted with a second strip block (7), and the second strip block (7) is fixedly installed to the outer wall of the inner cylinder (2).

3. A control arm bushing according to claim 1, characterized in that: A plurality of first strip blocks (5) are installed on the inner wall of the bush body (1), and the outer side of the first strip block (5) is sleeved with a first concave body (6), and the first concave body (6) is fixedly installed on the outer side of the high-strength air bag (3).

4. A control arm bushing according to claim 1, characterized in that: First limiting bodies (9) are installed on the upper and lower outer sides of the inner cylinder (2), and the outer side edges of the first limiting bodies (9) extend to the top position of the high-strength air bag (3).

5. A control arm bushing according to claim 1, characterized in that: Second limiting bodies (10) are installed on the inner upper and lower positions of the bush body (1), and the inner side edges of the second limiting bodies (10) extend to the top position of the high-strength air bag (3).

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