Bushing, bushing assembly, shock absorber and vehicle

Abstract

The utility model provides a bushing, a bushing assembly, a shock absorber and a vehicle, the bushing comprises a first sleeve and a rubber layer, one end of the first sleeve in the axial direction is provided with a first baffle, at least part of the first baffle extends out of the peripheral surface of the first sleeve in the radial direction of the first sleeve, and the rubber layer is arranged on the peripheral surface of the first sleeve; and in the circumferential direction of the first sleeve, the distances between at least two parts on the outer circumferential surface of the first baffle and the axis of the first sleeve are different. According to the bushing provided by the invention, the technical problem that the limiting capability of the bushing is poor in the prior art can be solved.

Description

Technical Field

[0001] The present application belongs to the technical field of vehicle shock absorbers, and more specifically, relates to a bushing, a bushing assembly, a shock absorber and a vehicle. Background Art

[0002] With the popularization of vehicles and the continuous development of technology, the driving experience of vehicles is gradually improving.

[0003] In related technologies, in order to improve the driving experience, vehicles usually install bushings at the transition points for vibration reduction. The bushings need to reduce vibration by deformation, and their limiting ability is poor. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a bushing, a bushing assembly, a shock absorber and a vehicle to solve the technical problem of poor bushing limiting ability existing in the related art.

[0005] To achieve the above objectives, the technical solution adopted in this application is:

[0006] In a first aspect, a bushing is provided, comprising a first sleeve and a rubber layer, wherein a first baffle is provided at one axial end of the first sleeve, at least a portion of the first baffle extends radially out of the outer circumferential surface of the first sleeve, and the rubber layer is provided on the outer circumferential surface of the first sleeve; wherein, along the circumference of the first sleeve, at least two portions on the outer circumferential surface of the first baffle are at different distances from the axis of the first sleeve.

[0007] Through the above technical solution, the bushing provided by the present application is provided with a rubber layer on the outer peripheral surface of the first sleeve, and the rubber layer can be deformed, thereby achieving a vibration reduction effect. In addition, a first baffle is provided at one axial end of the first sleeve, and the first baffle can achieve a limiting effect. Moreover, along the circumference of the first sleeve, at least two parts on the outer peripheral surface of the first baffle are at different distances from the axis of the first sleeve. Parts of the first baffle can achieve a limiting effect, and other parts of the first baffle can avoid the deformed parts of the rubber layer to avoid affecting the vibration reduction effect. In this way, the bushing provided by the present application can avoid affecting the vibration reduction effect, and can also achieve a limiting effect, to a certain extent limiting the rotation of the external components connected to the rubber layer.

[0008] Therefore, the bushing provided in this application can solve the technical problem of poor bushing limiting ability existing in the related art.

[0009] In some embodiments, the outer circumferential surface of the first baffle includes a first side surface and a second side surface, the first side surface intersects with the second side surface, the distance between the first side surface and the axis is greater than the distance between the second side surface and the axis, and the distance between the first side surface and the axis is greater than the outer diameter of the first sleeve; or, the outer circumferential surface of the first baffle includes a first side surface, a second side surface and a third side surface, the first side surface intersects with the second side surface, the second side surface intersects with the third side surface, the distance between the first side surface and the axis is greater than the distance between the third side surface and the axis, and the distance between the first side surface and the axis is greater than the outer diameter of the first sleeve; or, the projection of the outer circumferential surface of the first baffle in the axial direction of the first sleeve is an ellipse.

[0010] In this way, the shape of the first baffle can be specifically designed according to actual needs, which can reduce design requirements to a certain extent and help reduce costs.

[0011] In some embodiments, the distance between the outer circumference of the rubber layer and the axis is less than the maximum distance between the outer circumference of the first baffle and the axis; and / or, the other axial end of the first sleeve is provided with a docking surface, and the end of the rubber layer away from the first baffle is provided with a mating surface, and the docking surface is located on the side of the mating surface away from the first baffle.

[0012] In this way, the first baffle can extend beyond the outer periphery of the rubber layer, providing a position-limiting effect. Furthermore, the mating surface is not coplanar with the butt joint surface; the mating surface is located on the outer periphery of the butt joint surface, and on the side of the butt joint surface adjacent to the first baffle. This prevents the rubber layer from interfering with the first sleeve, and facilitates processing.

[0013] In some embodiments, the bushing also includes a second sleeve, which is arranged on the outer peripheral surface of the rubber layer, and the second sleeve is located on the side of the first baffle close to the other end of the first sleeve. A second baffle is provided at one end of the second sleeve close to the first baffle, and the second baffle extends out of the outer peripheral surface of the second sleeve along the radial direction of the second sleeve, and there is a gap between the first baffle and the second baffle.

[0014] In this way, the second sleeve can replace the rubber layer in connecting to external components, improving connection reliability. The gap between the first and second baffles provides space for the rubber layer to deform, allowing the bushing to achieve a vibration reduction effect. Furthermore, when the rubber layer deforms to a certain extent, the first baffle can contact the second baffle, preventing deformation of the rubber layer and thus achieving a better limiting effect.

[0015] In some embodiments, in the axial direction of the first sleeve, the size of the gap is greater than or equal to the size of the second baffle, and less than or equal to the size of the first baffle. In this way, the bushing can play a vibration reduction effect, and also prevent the rubber layer from deforming too much, and can play a limiting effect.

[0016] In some embodiments, a rubber pad is provided on the side of the first baffle plate adjacent to the second baffle plate, and / or a rubber pad is provided on the side of the second baffle plate adjacent to the first baffle plate. In this way, since the first baffle plate and the second baffle plate frequently contact or even collide with each other, the rubber pad can protect the first baffle plate and / or the second baffle plate, thereby improving reliability.

[0017] In some embodiments, the rubber pad is integrally connected to the rubber layer; and / or a positioning structure is provided on a side of the first baffle away from the second baffle.

[0018] In this way, the rubber pad and the rubber layer can be processed simultaneously, which is conducive to improving processing efficiency. In addition, the positioning structure of the first baffle can be coordinated with the external component, so that the bushing can be installed in the correct position.

[0019] In a second aspect, the present application provides a bushing assembly comprising a first bushing and a second bushing, wherein one axial end of the first bushing is butted against one axial end of the second bushing, at least one of the first bushing and the second bushing being the bushing described in the above-mentioned embodiment, and a first baffle being located at at least one end of the bushing assembly. The bushing assembly provided by the present application has similar technical effects as the bushing described in the above-mentioned embodiment and will not be further described herein.

[0020] In a third aspect, the present application provides a shock absorber, comprising a shock absorber body, a lifting ring, and the aforementioned bushing assembly. The lifting ring is sleeved on the outer peripheral side of the bushing assembly, and the first baffle is located on one side of the lifting ring in the axial direction. The dimension of the first baffle in the first direction is smaller than the dimension of the first baffle in the second direction. The first and second directions are perpendicular to the axial direction of the lifting ring, and the first direction intersects with the second direction. In this way, the bushing assembly can deform in the direction of the vibration of the shock absorber body, thereby achieving a vibration reduction effect. In addition, the shock absorber provided by the present application has similar technical effects as the aforementioned bushing assembly, which will not be described in detail here.

[0021] In a fourth aspect, the present application provides a vehicle comprising the aforementioned shock absorber, wherein the bushing assembly is mounted on a steering knuckle of the vehicle. Furthermore, the vehicle provided by the present application has similar technical effects as the aforementioned shock absorber, which will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 A schematic diagram of the structure of the connection between the shock absorber and the steering knuckle provided in an embodiment of the present application;

[0024] Figure 2 A schematic structural diagram of the shock absorber body provided in an embodiment of the present application;

[0025] Figure 3 A schematic cross-sectional view of the connection between the shock absorber and the steering knuckle provided in an embodiment of the present application;

[0026] Figure 4 A schematic structural diagram of a bushing provided in an embodiment of the present application;

[0027] Figure 5 One of the structural schematic diagrams of the first baffle provided in an embodiment of the present application;

[0028] Figure 6 The second structural diagram of the first baffle provided in the embodiment of the present application;

[0029] Figure 7 The third structural diagram of the first baffle provided in the embodiment of the present application;

[0030] Figure 8 for Figure 1 Schematic diagram of the cross-sectional structure along line AA;

[0031] Figure 9 for Figure 1 Schematic diagram of the cross-sectional structure along line BB;

[0032] Figure 10 This is one of the structural schematic diagrams of the first bushing provided in an embodiment of the present application;

[0033] Figure 11 This is the second structural schematic diagram of the first bushing provided in an embodiment of the present application.

[0034] Among them, the reference numerals in the figures are:

[0035] 100- shock absorber body; 10- air spring; 20- air reservoir; 30- oil pump; 40- motor; 50- connector;

[0036] 200-lifting ring; 300-bushing assembly; 301-first connecting hole; 302-mounting slot; 310-first bushing; 311-first hole section; 320-second bushing; 321-second hole section; 400-steering knuckle; 401-second connecting hole;

[0037] 1-first sleeve; 101-jointing surface; 11-first baffle; 1101-notch; 1102-limiting portion; 111-first rubber pad; 112-first side surface; 113-second side surface; 114-third side surface; 115-positioning protrusion; 116-positioning groove; 2-rubber layer; 201-matching surface; 21-auxiliary groove; 3-second sleeve; 31-second baffle; 312-second rubber pad. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0039] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0042] With the increasing popularity of vehicles and the continuous advancement of technology, the driving experience has become a key performance indicator. For example, with the popularization of electric vehicles and the continuous development of intelligent driving solutions, fully active suspension has become an increasing focus and highlight in the automotive industry. The shock absorber in a fully active suspension is typically equipped with a motor, oil pump, and other components.

[0043] The embodiment of the present application provides a vehicle, which may be an electric vehicle, or a vehicle powered by other means. Figure 1 The vehicle of the embodiment of the present application includes a steering knuckle 400 and a shock absorber, and the shock absorber is connected to the steering knuckle 400.

[0044] Please also refer to Figure 1 and Figure 2 The embodiment of the present application provides a shock absorber, which includes a shock absorber body 100, a suspension ring 200 and a bushing assembly 300. The shock absorber body 100 includes an air spring 10, a liquid storage cylinder ( Figure 2 ), an air cylinder 20, an oil pump 30, a motor 40 and a connector 50. The motor 40 can control the operation of the oil pump 30 according to the vehicle condition, and the oil pump 30 can adjust the oil pressure in the liquid reservoir, so that the posture of the entire vehicle body can be quickly adjusted as needed. The air cylinder 20 can be used in conjunction with the liquid reservoir. Among them, the air spring 10 and the connector 50 are all connected to the liquid reservoir, and the air cylinder 20, the oil pump 30 and the motor 40 are installed on the connector 50. The lifting ring 200 is connected to the connector 50, and the lifting ring 200 is located on the shock absorber body 100 in the first direction (such as Figure 1 one side of the Z direction).

[0045] The inventors found that the shock absorber integrates the oil pump 30 and the motor 40. Due to the high integration of the shock absorber, the center of mass of the shock absorber is relatively close to the axis of the liquid reservoir (such as Figure 2 The line L) in the figure is offset, and the shock absorber is easy to rotate around the axis of the fluid reservoir. The shock absorber is connected to the steering knuckle 400 through the lifting ring 200 and the bushing assembly 300 inserted into the lifting ring 200. Therefore, the bushing assembly 300 is required to limit the shock absorber to restrict its rotation.

[0046] See also Figure 3 The bushing assembly 300 provided in the present application has a first connection hole 301, and the steering knuckle 400 of the vehicle has a second connection hole 401. The bushing assembly 300 is inserted into the lifting ring 200, that is, the lifting ring 200 is sleeved on the outer peripheral side of the bushing assembly 300, and the bolts ( Figure 3 (not shown) the bushing assembly 300 is installed on the steering knuckle 400.

[0047] Bushing assembly 300 includes two bushings, a first bushing 310 and a second bushing 320. One axial end of first bushing 310 butts against one axial end of second bushing 320. First bushing 310 has a first bore section 311, and second bushing 320 has a second bore section 321. When first bushing 310 and second bushing 320 are butted against each other, first bore section 311 and second bore section 321 form first connecting hole 301.

[0048] In related technologies, bushings require deformation to reduce vibration, resulting in poor position-limiting capabilities. For example, the shock absorber in the embodiment of the present application is connected to the steering knuckle 400 via a bushing assembly 300. During vehicle operation, relative displacement occurs between the shock absorber and the steering knuckle 400, requiring the bushing assembly 300 to reduce vibration. The bushing assembly 300 also needs to limit the position of the shock absorber to restrict its rotation. Therefore, at least one of the two bushings in the bushing assembly 300 needs to function as a position-limiting device to limit the rotation of the shock absorber.

[0049] See also Figure 4 To achieve the above technical effects, the present application provides a bushing. The bushing provided in the present application includes a first sleeve 1 and a rubber layer 2. The rubber layer 2 is provided on the outer peripheral surface of the first sleeve 1. The rubber layer 2 can be deformed, so that the bushing can achieve a vibration reduction effect.

[0050] The axial direction of the first sleeve 1 (such as Figure 1 A first baffle 11 is provided at one end thereof (in the X direction) to play a role of limiting. At least a portion of the first baffle 11 extends out of the outer circumference of the first sleeve 1 along the radial direction of the first sleeve 1; wherein, along the circumference of the first sleeve 1, at least two portions of the outer circumference of the first baffle 11 are aligned with the axis of the first sleeve 1 (e.g., Figure 4 The distances between the lines M) are different.

[0051] In other words, the first baffle 11 can function as a position limiter, while the remaining portion of the first baffle 11 can avoid the deformed portion of the rubber layer 2, thereby preventing it from affecting the vibration damping effect. Thus, the bushing provided by this application can avoid affecting the vibration damping effect while also functioning as a position limiter, limiting the rotation of the external component (e.g., a shock absorber) connected to the rubber layer 2 to a certain extent.

[0052] Therefore, the bushing provided in this application can solve the technical problem of poor bushing limiting ability existing in the related art.

[0053] It is understood that for some components (such as shock absorbers), the bushings provided in this application need to be used in combination. For special components, the bushings provided in this application can also be used alone. The following description takes the bushing assembly 300 in which both bushings are provided by this application as an example.

[0054] It should be noted that the shape of the first baffle 11 can be specifically designed according to actual needs, as long as it can achieve both a vibration reduction effect and a position limiting effect.

[0055] See also Figure 5In some embodiments, the outer peripheral surface of the first baffle 11 includes a first side surface 112 and a second side surface 113, the first side surface 112 intersects with the second side surface 113, the distance between the first side surface 112 and the axis is greater than the distance between the second side surface 113 and the axis, and the distance between the first side surface 112 and the axis is greater than the outer diameter of the first sleeve 1.

[0056] In this way, the portion of the first baffle 11 having the first side surface 112 can play a limiting role, and the portion of the first baffle 11 having the second side surface 113 can avoid the deformed portion of the rubber layer 2 to avoid affecting the vibration reduction effect.

[0057] See also Figure 6 In other embodiments, the outer peripheral surface of the first baffle 11 includes a first side surface 112, a second side surface 113 and a third side surface 114, the first side surface 112 intersects with the second side surface 113, the second side surface 113 intersects with the third side surface 114, the distance between the first side surface 112 and the axis is greater than the distance between the third side surface 114 and the axis, and the distance between the first side surface 112 and the axis is greater than the outer diameter of the first sleeve 1.

[0058] In this way, the portion of the first baffle 11 having the first side surface 112 can play a limiting role, and the portion of the first baffle 11 having the third side surface 114 can avoid the deformed portion of the rubber layer 2 to avoid affecting the vibration reduction effect.

[0059] See also Figure 7 In some other embodiments, the projection of the outer circumference of the first baffle 11 in the axial direction of the first sleeve 1 is an ellipse. The two ends of the first baffle 11 on the major axis of the ellipse can serve as a limiter, and the two ends of the first baffle 11 on the minor axis of the ellipse can avoid the deformed portion of the rubber layer 2, thereby avoiding affecting the vibration reduction effect.

[0060] In summary, the shape of the first baffle 11 can be specifically designed according to actual needs, which can reduce design requirements to a certain extent and help reduce costs.

[0061] Please continue reading Figure 4 In some embodiments, the distance between the outer circumference of the rubber layer 2 and the axis is less than the maximum distance between the outer circumference of the first baffle 11 and the axis. This allows the first baffle 11 to extend beyond the outer circumference of the rubber layer 2, thereby limiting the position of external components (e.g., shock absorbers) connected to the rubber layer 2.

[0062] Please also refer to Figure 1 、 Figure 4 、 Figure 8 and Figure 9In some embodiments, a mating surface 101 is provided at the other axial end of the first sleeve 1, and a mating surface 201 is provided at the end of the rubber layer 2 away from the first baffle 11. The mating surface 101 is located on the side of the mating surface 201 away from the first baffle 11. In this way, after the first bushing 310 and the second bushing 320 are docked, the mating surfaces 101 of the first sleeves 1 of the two bushings align, and the two mating surfaces 201 are separated by a certain distance. This prevents over-positioning during docking of the two bushings and facilitates docking. Furthermore, the mating surface 201 is non-coplanar with the mating surface 101. The mating surface 201 is located on the outer periphery of the mating surface 101, and is located on the side of the mating surface 101 adjacent to the first baffle 11. This prevents the rubber layer 2 from affecting the first sleeve 1 and facilitates processing.

[0063] In some embodiments, the bushing further includes a second sleeve 3, which is disposed on the outer circumference of the rubber layer 2. The second sleeve 3 can replace the rubber layer 2 in connection with external components, thereby improving the reliability of the connection. The second sleeve 3 is located on the side of the first baffle 11 near the other end of the first sleeve 1. A second baffle 31 is provided at the end of the second sleeve 3 near the first baffle 11. The second baffle 31 extends radially out of the outer circumference of the second sleeve 3, and a gap is provided between the first baffle 11 and the second baffle 31. In this way, the gap between the first baffle 11 and the second baffle 31 can provide space for the deformation of the rubber layer 2, thereby achieving a vibration reduction effect of the bushing. In addition, when the rubber layer 2 deforms to a certain extent, the first baffle 11 can contact the second baffle 31, hindering the deformation of the rubber layer 2, thereby achieving a better limiting effect.

[0064] For example, in the axial direction of the first sleeve 1, the size of the gap is greater than or equal to the size of the second baffle 31, and less than or equal to the size of the first baffle 11. In this way, the bushing can achieve a vibration reduction effect, prevent excessive deformation of the rubber layer 2, and achieve a limiting effect.

[0065] Among them, after the two bushings are docked, the two first baffles 11 are respectively located at the two ends of the bushing assembly 300, and the second baffles 31 of the two second sleeves 3 are far away from each other. The two second sleeves 3 define an annular mounting groove 302, and the lifting ring 200 is installed in the mounting groove 302, thereby improving the reliability of the connection.

[0066] In addition, the first baffle 11 is located on one side of the axial direction of the lifting ring 200, and the size of the first baffle 11 in the first direction is smaller than the size of the first baffle 11 in the second direction (such as Figure 1 For example, the first baffle 11 has notches 1101 on both sides of the first direction. The first direction and the second direction are perpendicular to the axial direction of the lifting ring 200, the axial direction of the lifting ring 200 is consistent with the axial direction of the first sleeve 1, and the first direction intersects the second direction.

[0067] Please also refer to Figure 1 and Figure 8 The suspension ring 200 is located on one side of the shock absorber body 100 in the first direction, and the shock absorber as a whole bounces in the first direction. The first baffle 11 has notches 1101 on both sides in the first direction. The rubber layers 2 of the two bushings of the bushing assembly 300 can deform in the direction of the shock absorber's bounce and can be squeezed and deformed in the axial direction of the suspension ring 200, thereby achieving a vibration reduction effect.

[0068] Please also refer to Figure 1 and Figure 9 If the shock absorber rotates, it will cause the rubber layer 2 to twist and deform. The first baffle 11 has limiting portions 1102 on both sides in the second direction. The limiting portions 1102 can limit the rubber layer 2 to prevent twisting and deformation, and can also limit the second baffle 31 to prevent the shock absorber from rotating.

[0069] It is understandable that the bushing provided in this application can prevent the shock absorber from rotating during vehicle driving, but the shock absorber still has a tendency to rotate. The first baffle 11 and the second baffle 31 will frequently contact or even collide, which can improve reliability.

[0070] It should be noted that the bushing assembly 300 provided in the embodiment of the present application has similar technical effects as a bushing, but the bushing assembly 300 has a weaker torque resistance in the first direction than in the second direction. For example, when the first baffle is elliptical, the first direction can be the minor axis direction, and the second direction can be the major axis direction. Therefore, the bushing assembly 300 provided in the embodiment of the present application can provide vibration reduction in the first direction and position limiting in the second direction.

[0071] Please continue reading Figure 4 In some embodiments, a rubber pad can be provided on the side of the first baffle 11 adjacent to the second baffle 31. In some embodiments, a rubber pad can also be provided on the side of the second baffle 31 adjacent to the first baffle 11. Of course, both the first baffle 11 and the second baffle 31 can be provided with the rubber layer 2. In this way, since the first baffle 11 and the second baffle 31 frequently contact or even collide with each other, the rubber pad can protect the first baffle 11 and the second baffle 31, thereby improving reliability.

[0072] For example, the rubber pad and the rubber layer 2 can be integrally connected. This allows the rubber pad and the rubber layer 2 to be processed simultaneously, improving processing efficiency. The rubber pad on the first baffle 11 is the first rubber pad 111 , and the rubber pad on the second baffle 31 is the second rubber pad 312 .

[0073] In some embodiments, the mating surface 201 of the rubber layer 2 is provided with an auxiliary groove 21 . The rubber layer 2 can be manufactured by casting. The auxiliary groove 21 facilitates demoulding, thereby facilitating processing.

[0074] In some embodiments, a positioning structure may be provided on a side of the first baffle 11 away from the second baffle 31. The positioning structure of the first baffle 11 may cooperate with an external component (eg, the steering knuckle 400) to enable the bushing to be installed in the correct position.

[0075] Please also refer to Figure 3 、 Figure 10 and Figure 11 The first bushing 310 of the bushing assembly 300 is located on the side of the second bushing 320 closer to the steering knuckle 400, with the first bushing 310 directly contacting the steering knuckle 400. A positioning structure can be provided on the side of the first baffle 11 away from the second baffle 31 for the first bushing 310. The steering knuckle 400 can be provided with a corresponding positioning portion, and the positioning structure of the first baffle 11 can cooperate with the steering knuckle 400 to ensure that the bushing is installed in the correct position, with the notch 1101 of the first baffle 11 oriented in the first direction, thereby providing the first baffle 11 with a vibration reduction and position limiting effect.

[0076] See also Figure 10 For example, a positioning protrusion 115 is provided on a side of the first baffle 11 away from the second baffle 31. It is understood that the steering knuckle 400 may be provided with a corresponding groove.

[0077] See also Figure 10 For example, a positioning groove 116 is provided on a side of the first baffle 11 away from the second baffle 31. It is understood that the steering knuckle 400 may be provided with a corresponding protrusion.

[0078] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A bushing, characterized in that: The bushing includes: a first sleeve, wherein a first baffle is provided at one axial end of the first sleeve, and at least a portion of the first baffle extends out of an outer circumferential surface of the first sleeve in a radial direction of the first sleeve; a rubber layer, the rubber layer being disposed on the outer peripheral surface of the first sleeve; Wherein, along the circumference of the first sleeve, at least two parts on the outer circumferential surface of the first baffle have different distances from the axis of the first sleeve.

2. The bushing according to claim 1, wherein The outer peripheral surface of the first baffle includes a first side surface and a second side surface, the first side surface intersects the second side surface, the distance between the first side surface and the axis is greater than the distance between the second side surface and the axis, and the distance between the first side surface and the axis is greater than the outer diameter of the first sleeve; Alternatively, the outer circumferential surface of the first baffle includes a first side surface, a second side surface, and a third side surface, the first side surface intersects the second side surface, the second side surface intersects the third side surface, the distance between the first side surface and the axis is greater than the distance between the third side surface and the axis, and the distance between the first side surface and the axis is greater than the outer diameter of the first sleeve; Alternatively, the projection of the outer peripheral surface of the first baffle in the axial direction of the first sleeve is an ellipse.

3. The bushing according to claim 1, wherein: The distance between the outer circumference of the rubber layer and the axis is smaller than the maximum distance between the outer circumference of the first baffle and the axis; And / or, the other axial end of the first sleeve is provided with a butt joint surface, the end of the rubber layer away from the first baffle is provided with a matching surface, and the butt joint surface is located on the side of the matching surface away from the first baffle.

4. The bushing according to any one of claims 1 to 3, characterized in that The bushing also includes a second sleeve, which is arranged on the outer circumferential surface of the rubber layer. The second sleeve is located on the side of the first baffle close to the other end of the first sleeve. A second baffle is provided at the end of the second sleeve close to the first baffle. The second baffle extends out of the outer circumferential surface of the second sleeve along the radial direction of the second sleeve, and there is a gap between the first baffle and the second baffle.

5. The bushing according to claim 4, wherein: In the axial direction of the first sleeve, the size of the gap is greater than or equal to the size of the second baffle, and smaller than or equal to the size of the first baffle.

6. The bushing according to claim 4, wherein: A rubber pad is provided on a side of the first baffle close to the second baffle, and / or a rubber pad is provided on a side of the second baffle close to the first baffle.

7. The bushing according to claim 6, wherein: The rubber pad is integrally connected to the rubber layer; and / or a positioning structure is provided on a side of the first baffle away from the second baffle.

8. A bushing assembly, characterized in that: include: A first bushing and a second bushing, one axial end of the first bushing is butted against one axial end of the second bushing, at least one of the first bushing and the second bushing is the bushing according to any one of claims 1 to 7, and the first baffle is located at at least one end of the bushing assembly.

9. A shock absorber, characterized in that: include: A shock absorber body, a hanging ring and a bushing assembly as claimed in claim 8, wherein the hanging ring is connected to one side of the shock absorber body in a first direction, the hanging ring is sleeved on the outer peripheral side of the bushing assembly, the first baffle is located on one side of the axial direction of the hanging ring, the size of the first baffle in the first direction is smaller than the size of the first baffle in the second direction, the first direction and the second direction are perpendicular to the axial direction of the hanging ring, and the first direction intersects with the second direction.

10. A vehicle, characterized in that: The shock absorber according to claim 9, wherein the bushing assembly is mounted to a steering knuckle of the vehicle.

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