Suspension bushing, suspension system and vehicle

Abstract

The utility model relates to a suspension lining, a suspension system and a vehicle, the suspension lining comprises a first lining part, the first lining part comprises a first outer pipe, a first inner pipe and a first elastic body, the first outer pipe sleeves the first inner pipe, and the first elastic body sleeves the first inner pipe; the first outer pipe comprises a first side peripheral part extending in the axial direction of the first inner pipe and a first skirt edge part extending towards the first inner pipe in the radial direction of the first inner pipe. The first elastic body is arranged on the first inner pipe in a sleeving mode and located between the first side peripheral part and the first inner pipe in the radial direction of the first inner pipe. The second lining part comprises a second outer pipe, a second inner pipe and a second elastic body, the second inner pipe is sleeved with the second outer pipe, and the second outer pipe comprises a second side peripheral part extending in the axial direction of the second inner pipe and a second skirt edge part extending towards the second inner pipe in the radial direction of the second inner pipe; the second elastic body is arranged on the second inner pipe in a sleeved mode and located between the second side peripheral portion and the second inner pipe in the radial direction of the second inner pipe. According to the scheme, the axial rigidity of the suspension bushing is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of bushings, and particularly relates to a suspension bushing, a suspension system and a vehicle. BACKGROUND

[0002] At present, in the arrangement design of a motor suspension, some suspensions are limited by the boundary conditions of a vehicle and need to adopt an axially high-rigidity bushing. However, the axial rigidity of the existing bushing is low, and thus the variable arrangement boundary requirements cannot be met. CONTENT OF THE UTILITY MODEL

[0003] The application aims to provide a suspension bushing, a suspension system and a vehicle, and improve the axial rigidity of the suspension bushing.

[0004] The first aspect of the application discloses a suspension bushing, comprising: a first bushing part, the first bushing part comprising a first outer tube, a first inner tube and a first elastic body, the first outer tube being sleeved on the first inner tube, the first outer tube comprising a first side peripheral part extending along the axial direction of the first inner tube and a first skirt part extending along the radial direction of the first inner tube towards the first inner tube; the first elastic body being sleeved on the first inner tube and located between the first side peripheral part and the first inner tube along the radial direction of the first inner tube; a second bushing part, the second bushing part comprising a second outer tube, a second inner tube and a second elastic body, the second outer tube being sleeved on the second inner tube, the second outer tube comprising a second side peripheral part extending along the axial direction of the second inner tube and a second skirt part extending along the radial direction of the second inner tube towards the second inner tube; the second elastic body being sleeved on the second inner tube and located between the second side peripheral part and the second inner tube along the radial direction of the second inner tube.

[0005] In an example embodiment of the application, the first outer tube further comprises a first arc-shaped connecting part connected between the first side peripheral part and the first skirt part, the first arc-shaped connecting part being connected with the first elastic body; the second outer tube further comprises a second arc-shaped connecting part connected between the second side peripheral part and the second skirt part, the second arc-shaped connecting part being connected with the second elastic body.

[0006] In an exemplary embodiment of the present application, the first elastic body comprises a first fixed portion and a first boss portion, the first fixed portion is sleeved on the first inner tube, the first fixed portion is spaced apart from the first outer tube, one end of the first boss portion is connected to the first fixed portion, and the other end of the first boss portion is in contact with at least part of the first side peripheral portion, the first arc-shaped connecting portion, and at least part of the first skirt portion; the second elastic body comprises a second fixed portion and a second boss portion, the second fixed portion is sleeved on the second inner tube, the second fixed portion is spaced apart from the second outer tube, one end of the second boss portion is connected to the second fixed portion, and the other end of the second boss portion is in contact with at least part of the second side peripheral portion, the second arc-shaped connecting portion, and at least part of the second skirt portion.

[0007] In an exemplary embodiment of the present application, the first boss portion is obliquely arranged between the first fixed portion and the first outer tube, and the end of the first boss portion in contact with the first outer tube is obliquely arranged along the axial direction of the first inner tube away from the second outer tube.

[0008] The second boss portion is obliquely arranged between the second fixed portion and the second outer tube, and the end of the second boss portion in contact with the second outer tube is obliquely arranged along the axial direction of the second inner tube away from the first outer tube.

[0009] In an exemplary embodiment of the present application, the first fixed portion is arranged around the first inner tube, and the first boss portion is arranged around the first fixed portion; the second fixed portion is arranged around the second inner tube, and the second boss portion is arranged around the second fixed portion.

[0010] In an exemplary embodiment of the present application, the first fixed portion comprises a plurality of first fixed blocks, each first fixed block is arranged around the first inner tube with a spacing, the first boss portion comprises a plurality of first bosses, one end of each first boss is connected to a first fixed block, and the other end of each first boss is in contact with the first side peripheral portion, the first arc-shaped connecting portion, and the first skirt portion, and a first fixed block is arranged between adjacent two first bosses; the second fixed portion comprises a plurality of second fixed blocks, each second fixed block is arranged around the second inner tube with a spacing, the second boss portion comprises a plurality of second bosses, one end of each second boss is connected to a second fixed block, and the other end of each second boss is in contact with the second side peripheral portion, the second arc-shaped connecting portion, and the second skirt portion, and a second fixed block is arranged between adjacent two second bosses.

[0011] In an exemplary embodiment of the present application, the first fixed part comprises a first fastening upper section and a first fastening lower section, both of which are sleeved on the first inner tube, the first fastening lower section is arranged in a spaced manner with the first outer tube, and is closer to the second elastic body than the first fastening upper section, and the first boss part is connected to the first fastening upper section; the second fixed part comprises a second fastening upper section and a second fastening lower section, both of which are sleeved on the second inner tube, the second fastening upper section is arranged in a spaced manner with the second outer tube, and is closer to the first elastic body than the second fastening lower section, and the second boss part is connected to the second fastening lower section.

[0012] In an exemplary embodiment of the present application, the first inner tube comprises a first upper tube section, a first intermediate tube section and a first lower tube section, the first intermediate tube section is connected between the first upper tube section and the first lower tube section, the outer diameter of the first lower tube section is larger than that of the first upper tube section, and the outer diameter of the first intermediate tube section gradually increases from the first upper tube section to the first lower tube section; the first elastic body is sleeved on the first upper tube section, the first intermediate tube section and the first lower tube section; the second inner tube comprises a second upper tube section, a second intermediate tube section and a second lower tube section, the second intermediate tube section is connected between the second upper tube section and the second lower tube section, the outer diameter of the second lower tube section is smaller than that of the second upper tube section, and the outer diameter of the second intermediate tube section gradually decreases from the second upper tube section to the second lower tube section; the second elastic body is sleeved on the second upper tube section, the second intermediate tube section and the second lower tube section.

[0013] The second aspect of the present application discloses a suspension system, comprising a suspension bracket and the suspension bushing.

[0014] The third aspect of the present application discloses a suspension system, comprising a vehicle body and the suspension system, and the suspension system is connected to the vehicle body.

[0015] The present application has the following advantages:

[0016] In the embodiments of the present application, the first outer tube comprises a first side peripheral part extending along the axial direction of the first inner tube and a first skirt part extending along the radial direction of the first inner tube towards the first inner tube, and the first elastic body is sleeved on the first inner tube; the second outer tube comprises a second side peripheral part extending along the axial direction of the second inner tube and a second skirt part extending along the radial direction of the second inner tube towards the second inner tube, and the second elastic body is sleeved on the second inner tube; wherein the first elastic body and the second elastic body are located between the first skirt part and the second skirt part. Therefore, when the first inner tube and / or the second inner tube is subjected to an axial force, and the first elastic body is in contact with the first skirt part, the first skirt part can provide an axial support force for the first elastic body; or when the first inner tube and / or the second inner tube is subjected to an axial force, and the second elastic body is in contact with the second skirt part, the second skirt part can provide an axial support force for the second elastic body, thereby improving the axial stiffness of the suspension bushing.

[0017] It should be understood that the general description above and the detailed description below are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings incorporated into the specification and forming a part of the specification, show embodiments consistent with the present application, and together with the specification, serve to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them, the drawings here are used to represent the utility model concept of the present application, and are not exactly the same as the structure of the actual product protected by the present application.

[0019] Figure 1 A perspective structural schematic diagram of the suspension bushing in the embodiments of the present application is shown.

[0020] Figure 2 A top view structural schematic diagram of the suspension bushing in the embodiments of the present application is shown.

[0021] Figure 3 A front view structural schematic diagram of the suspension bushing in the embodiments of the present application is shown.

[0022] Figure 4 A cross-sectional structural schematic diagram of the suspension bushing in the embodiments of the present application is shown.

[0023] Explanation of reference signs:

[0024] 11. First bushing portion; 12. First outer tube; 121. First side perimeter portion; 122. First skirt portion; 123. First arc-shaped connecting portion; 13. First elastic body; 131. First fixing portion; 132. First boss portion; 14. First inner tube; 141. First upper tube section; 142. First intermediate tube section; 143. First lower tube section; 21. Second bushing portion; 22. Second outer tube; 221. Second side perimeter portion; 222. Second skirt portion; 223. Second arc-shaped connecting portion; 23. Second elastic body; 231. Second fixing portion; 232. Second boss portion; 24. Second inner tube; 241. Second upper tube section; 242. Second intermediate tube section; 243. Second lower tube section. Detailed Implementation

[0025] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0026] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0027] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application, and should not be construed as limiting the present application.

[0028] In related technologies, the radial (XY direction) stiffness of suspension bushing products is much higher than that of the axial (Z direction), typically 2 to 3 times or more. However, in motor suspension layout design, some suspensions are constrained by the vehicle's boundary conditions and require the use of bushings with high axial stiffness. Therefore, ordinary suspension bushings are difficult to meet the varying layout boundary requirements.

[0029] like Figures 1 to 4 As shown, this embodiment provides a suspension bushing that can be bolted between the subframe and the motor suspension bracket.

[0030] like Figures 1 to 4As shown, the suspension bushing includes a first bushing portion 11, the first bushing portion 11 includes a first inner tube 14, the first inner tube 14 is a hollow tube, and the inner wall of the first inner tube 14 is used for connection with bolts.

[0031] like Figures 1 to 4 As shown, the first bushing portion 11 also includes a first elastic body 13, which is sleeved on the first inner tube 14. For example, the first elastic body 13 covers the outer tube wall of the first inner tube 14 and fits against the outer tube wall of the first inner tube 14.

[0032] like Figures 1 to 4 As shown, the first bushing portion 11 also includes a first outer tube 12, which includes a first peripheral portion 121 extending axially along the first inner tube 14 and a first skirt portion 122 extending radially toward the first inner tube 14.

[0033] It should be understood that the cross-section (the section cut along the axial direction) of the first outer tube 12 is approximately a symmetrical double "L" shape.

[0034] like Figures 1 to 4 As shown, the suspension bushing includes a second bushing portion 21, the second bushing portion 21 includes a second inner tube 24, the second inner tube 24 is a hollow tube, and the inner wall of the second inner tube 24 is used for connection with bolts.

[0035] like Figures 1 to 4 As shown, the second bushing portion 21 also includes a second elastic body 23, which is sleeved on the second inner tube 24. For example, the second elastic body 23 covers the outer tube wall of the second inner tube 24 and fits against the outer tube wall of the second inner tube 24.

[0036] like Figures 1 to 4 As shown, the second bushing portion 21 also includes a second outer tube 22, which includes a second circumferential portion 221 extending axially along the second inner tube 24 and a second skirt portion 222 extending radially toward the second inner tube 24.

[0037] It should be understood that the cross-section of the second outer tube 22 (as above, longitudinal section) is approximately a symmetrical double "L" shape.

[0038] The first elastic body 13 and the second elastic body 23 are located between the first skirt portion 122 and the second skirt portion 222.

[0039] In the present application, the first elastic body 13 is sleeved on the first inner tube 14, because the first outer tube 12 comprises a first side peripheral portion 121 extending along the axial direction of the first inner tube 14 and a first skirt portion 122 extending along the radial direction of the first inner tube 14 towards the first inner tube 14; the second elastic body 23 is sleeved on the second inner tube 24, because the second outer tube 22 comprises a second side peripheral portion 221 extending along the axial direction of the second inner tube 24 and a second skirt portion 222 extending along the radial direction of the second inner tube 24 towards the second inner tube 24; wherein the first elastic body 13 and the second elastic body 23 are located between the first skirt portion 122 and the second skirt portion 222. Therefore, when the first inner tube 14 and / or the second inner tube 24 is subjected to an axial force, and the first elastic body 13 is in contact with the first skirt portion 122, the first skirt portion 122 can provide an axial support force for the first elastic body 13; or when the first inner tube 14 and / or the second inner tube 24 is subjected to an axial force, and the second elastic body 23 is in contact with the second skirt portion 222, the second skirt portion 222 can provide an axial support force for the second elastic body 23, thereby improving the axial stiffness of the suspension bushing.

[0040] In an exemplary embodiment of the present application, the first elastic body 13 and the second elastic body 23 can be natural rubber structures. Of course, the first elastic body 13 and the second elastic body 23 can also be other structures with good elastic ability, such as chloroprene rubber structures, butyl synthetic rubber structures and styrene-butadiene rubber structures.

[0041] In an exemplary embodiment of the present application, the suspension bushing is a central symmetric structure, thereby making the stress of the suspension bushing uniform, wherein the first bushing portion 11 and the second bushing portion 21 are connected, and the connection plane of the first bushing portion 11 and the second bushing portion 21 is symmetric.

[0042] It should be understood that, considering the manufacturing errors and the limitations of the process level, the above-mentioned "symmetry" is not strictly absolute symmetry, but only approximate "symmetry".

[0043] In an exemplary embodiment of the present application, the first inner tube 14 and the second inner tube 24 are in close contact. The first elastic body 13 and the second elastic body 23 are in close contact, and the first side peripheral portion 121 of the first outer tube 12 and the second side peripheral portion 221 of the second outer tube 22 are in close contact. The first elastic body 13 is in close contact with the first side peripheral portion 121 and the first skirt portion 122, and the second elastic body 23 is in close contact with the second side peripheral portion 221 and the second skirt portion 222, thereby enabling the first inner tube 14 or the second inner tube 24 to quickly transmit the force to each part of the suspension bushing when the first inner tube 14 or the second inner tube 24 is subjected to a force, thereby making the stress of the suspension bushing uniform, and preventing each part of the bushing from being loose.

[0044] In an exemplary embodiment of the present application, the first outer tube 12 further comprises a first arc-shaped connecting portion 123, which is connected between the first side peripheral portion 121 and the first skirt portion 122.

[0045] For example, one end of the first arc-shaped connecting portion 123 is connected with the first side peripheral portion 121, and the other end of the first arc-shaped connecting portion 123 is curved towards the first inner tube 14, so that the connection between the first side peripheral portion 121 and the first skirt portion 122 has a "fillet" structure.

[0046] It should be understood that, after the first arc-shaped connecting portion 123 is connected between the first side peripheral portion 121 and the first skirt portion 122, it can play a role of smooth transition and reduce stress concentration.

[0047] Of course, in other embodiments, the first outer tube 12 can only be composed of the vertical first side peripheral portion 121 and the horizontal first skirt portion 122.

[0048] Further, the first arc-shaped connecting portion 123 is in contact with the first elastic body 13. For example, the first elastic body 13 is closely attached to the inner wall surface of the first arc-shaped connecting portion 123 towards the first inner tube 14.

[0049] It should be understood that, after the first arc-shaped connecting portion 123 is in contact with the first elastic body 13, if the first elastic body 13 is subjected to an axial force, part of the force can be dispersed to the first side peripheral portion 121 through the first arc-shaped connecting portion 123, thereby reducing the stress concentration on the first skirt portion 122 and ultimately reducing the deformation probability of the first skirt portion 122.

[0050] In an exemplary embodiment of the present application, the second outer tube 22 further comprises a second arc-shaped connecting portion 223, which is connected between the second side peripheral portion 221 and the second skirt portion 222.

[0051] For example, one end of the second arc-shaped connecting portion 223 is connected with the second side peripheral portion 221, and the other end of the second arc-shaped connecting portion 223 is curved towards the second inner tube 24, so that the connection between the second side peripheral portion 221 and the second skirt portion 222 has a "fillet" structure.

[0052] It should be understood that, after the second arc-shaped connecting portion 223 is connected between the second side peripheral portion 221 and the second skirt portion 222, it can play a role of smooth transition and reduce stress concentration.

[0053] Of course, in other embodiments, the second outer tube 22 can only be composed of the vertical second side peripheral portion 221 and the horizontal second skirt portion 222.

[0054] Further, the second arc-shaped connecting portion 223 is in contact with the second elastic body 23. For example, the second elastic body 23 is closely attached to the inner wall surface of the second inner tube 24 and the second arc-shaped connecting portion 223.

[0055] It should be understood that, after the second arc-shaped connecting portion 223 is in contact with the second elastic body 23, if the second elastic body 23 is subjected to an axial force, the second arc-shaped connecting portion 223 can disperse part of the force to the second side peripheral portion 221, thereby reducing the stress concentration on the second skirt portion 222, and finally reducing the deformation probability of the second skirt portion 222.

[0056] As shown in FIG. 1, the first elastic body 13 includes a first fixed portion 131 and a first boss portion 132. The first fixed portion 131 is sleeved on the first inner tube 14, and the first fixed portion 131 is arranged in a spaced manner with the first outer tube 12. One end of the first boss portion 132 is connected to the first fixed portion 131, and the other end of the first boss portion 132 is in contact with at least part of the first side peripheral portion 121, the first arc-shaped connecting portion 123, and at least part of the first skirt portion 122. Figures 1 to 4

[0057] In an example embodiment of the present application, after the first boss portion 132 is in contact with the first side peripheral portion 121, the first arc-shaped connecting portion 123, and the first skirt portion 122, a gap is still reserved between the first fixed portion 131 and the first side peripheral portion 121 to provide a deformation space for the first elastic body 13. That is, the first boss portion 132 is only in contact with part of the outer surface of the first fixed portion 131 and part of the inner wall surface of the first side peripheral portion 121.

[0058] It should be understood that, by arranging the first boss portion 132 to be in contact with the first side peripheral portion 121, the first arc-shaped connecting portion 123, and the first skirt portion 122, the first elastic body 13 can uniformly bear the axial force through the first side peripheral portion 121, the first arc-shaped connecting portion 123, and the first skirt portion 122 when subjected to the axial force, thereby improving the axial stiffness of the suspension bushing.

[0059] Of course, in other embodiments, after the first boss portion 132 is in contact with the first side peripheral portion 121, the first arc-shaped connecting portion 123, and the first skirt portion 122, a gap can also not be reserved between the first fixed portion 131 and the first side peripheral portion 121, that is, the first boss portion 132 and the first fixed portion 131 fill the gap between the first inner tube 14 and the first outer tube 12. At this time, the stiffness of the suspension bushing can be improved.

[0060] As shown in FIG. 1, the first elastic body 13 includes a first fixed portion 131 and a first boss portion 132. The first fixed portion 131 is sleeved on the first inner tube 14, and the first fixed portion 131 is arranged in a spaced manner with the first outer tube 12. One end of the first boss portion 132 is connected to the first fixed portion 131, and the other end of the first boss portion 132 is in contact with at least part of the first side peripheral portion 121, the first arc-shaped connecting portion 123, and at least part of the first skirt portion 122. Figures 1 to 4 ​As shown, the second elastic body 23 includes a second fixing part 231 and a second protrusion part 232. The second fixing part 231 is sleeved on the second inner tube 24 and is spaced apart from the second outer tube 22. One end of the second protrusion part 232 is connected to the second fixing part 231, and the other end of the second protrusion part 232 is in contact with at least a portion of the second side peripheral part 221, the second arc-shaped connecting part 223, and at least a portion of the second skirt part 222.

[0061] In an exemplary embodiment of this application, after the second boss portion 232 has come into contact with the second peripheral portion 221, the second arcuate connecting portion 223, and the second skirt portion 222, a gap is still reserved between the second fixing portion 231 and the second peripheral portion 221 to provide space for the deformation of the second elastic body 23. That is, the second boss portion 232 only contacts a portion of the outer surface of the second fixing portion 231 and only contacts a portion of the inner wall surface of the second peripheral portion 221.

[0062] It should be understood that by providing the second boss portion 232 to contact the second side peripheral portion 221, the second arc-shaped connecting portion 223, and the second skirt portion 222, the second elastic body 23 can be made to bear the axial force evenly through the second side peripheral portion 221, the second arc-shaped connecting portion 223, and the second skirt portion 222 when subjected to axial force, thereby improving the axial stiffness of the suspension bushing.

[0063] Of course, in other embodiments, after the second boss portion 232 has contacted the second side peripheral portion 221, the second arc-shaped connecting portion 223, and the second skirt portion 222, there may be no gap between the second fixing portion 231 and the second side peripheral portion 221, that is, the second boss portion 232 and the second fixing portion 231 fill the gap between the second inner tube portion 24 and the second outer tube portion 22. In this case, the rigidity of the suspension bushing can be improved.

[0064] like Figure 4 As shown, the first protrusion 132 is inclined between the first fixing part 131 and the first outer tube 12, and the end of the first protrusion 132 that contacts the first outer tube 12 is inclined away from the second outer tube 22 along the axial direction of the first inner tube 14.

[0065] It should be understood that when the end of the first protrusion 132 that contacts the first outer tube 12 is inclined away from the second outer tube 22 along the axial direction of the first inner tube 14, it can convert part of the axial force into a radial force when the first elastic body 13 is subjected to axial force, thereby improving the axial resistance of the first elastic body 13.

[0066] like Figure 4As shown, the second protrusion 232 is inclined between the second fixing part 231 and the second outer tube 22, and the end of the second protrusion 232 that contacts the second outer tube 22 is inclined away from the first outer tube 12 along the axial direction of the second inner tube 24.

[0067] It should be understood that when the end of the second protrusion 232 that contacts the second outer tube 22 is inclined away from the first outer tube 12 along the axial direction of the second inner tube 24, it can convert part of the axial force into a radial force when the second elastic body 23 is subjected to axial force, thereby improving the axial resistance of the second elastic body 23.

[0068] like Figure 4 As shown, the first fixing part 131 is arranged around the first inner tube 14, and the first boss part 132 is arranged around the first fixing part 131, so that when the first elastic body 13 is subjected to axial force, it can evenly distribute the axial force to the first outer tube 12 and the first inner tube 14.

[0069] In one embodiment of this application, the first fixing part 131 is arranged in a closed manner around the first inner tube 14. That is, the first fixing part 131 is in the shape of a "ring". The first boss part 132 is also arranged in a closed manner around the first fixing part 131. That is, the first boss part 132 is also in the shape of a "ring".

[0070] like Figure 4 As shown, the second fixing part 231 is arranged around the second inner tube 24, and the second boss part 232 is arranged around the second fixing part 231, so that when the second elastic body 23 is subjected to axial force, it can evenly distribute the axial force to the second outer tube 22 and the second inner tube 24.

[0071] In one embodiment of this application, the second fixing part 231 is arranged in a closed manner around the second inner tube 24. That is, the second fixing part 231 is in the shape of a "ring". The second boss part 232 is also arranged in a closed manner around the second fixing part 231. That is, the second boss part 232 is also in the shape of a "ring".

[0072] In another embodiment of this application, the first fixing part 131 includes a plurality of first fixing blocks, each of the first fixing blocks being arranged around the first inner tube 14 at intervals. The first boss part 132 includes a plurality of first protrusions, one end of the first protrusion being connected to the first fixing block, and the other end of the first protrusion being in contact with the first side peripheral part 121, the first arc-shaped connecting part 123, and the first skirt part 122. A first fixing block is spaced between two adjacent first protrusions.

[0073] For example, the distance between two adjacent first fixed blocks is equal. The distance between two adjacent first protrusions is also equal. However, the distance between two adjacent first protrusions is greater than the distance between two adjacent first fixed blocks (for example, twice the distance between two second fixed blocks).

[0074] It should be understood that when the first fixed portion 131 and the first boss portion 132 are arranged in a spaced manner around the first inner tube 14 and the first outer tube 12, the first elastic body 13 can be uniformly dispersed to the first outer tube 12 and the first inner tube 14 when subjected to an axial force, while providing a larger deformation space for the first elastic body 13 to deform.

[0075] The second fixed portion 231 includes a plurality of second fixed blocks, each of which is arranged in a spaced manner around the second inner tube 24, and the second boss portion 232 includes a plurality of second protrusions, one end of each of which is connected to the second fixed block, and the other end of each of which is in contact with the second side peripheral portion 221, the second arc-shaped connecting portion 223, and the second skirt portion 222. Adjacent two second protrusions are separated by a second fixed block.

[0076] For example, the distance between adjacent two second fixed blocks is equal. The distance between adjacent two second protrusions is also equal. Among them, the distance between adjacent two second protrusions is greater than the distance between adjacent two second fixed blocks (for example, 2 times the distance between two second fixed blocks).

[0077] It should be understood that when the second fixed portion 231 and the second boss portion 232 are arranged in a spaced manner around the second inner tube 24 and the second outer tube 22, the second elastic body 23 can be uniformly dispersed to the second outer tube 22 and the second inner tube 24 when subjected to an axial force, while providing a larger deformation space for the second elastic body 23 to deform.

[0078] The first fixed portion 131 includes a first fastening upper segment and a first fastening lower segment, both of which are sleeved on the first inner tube 14. The first fastening lower segment is arranged in a spaced manner with the first outer tube 12, and is closer to the second elastic body 23 than the first fastening upper segment. The first boss portion 132 is connected to the first fastening upper segment.

[0079] It should be understood that since the first boss portion 132 is connected to the first fastening upper segment, the first fastening lower segment is arranged in a spaced manner with the first outer tube 12. Therefore, the first fastening lower segment and the first outer tube 12 form a first deformation space around the first inner tube 14, and the first deformation space is arranged close to the second elastic body 23, thereby providing a deformation space for the second elastic body 23 while providing a deformation space for the first elastic body 13.

[0080] The second fixed portion 231 includes a second fastening upper segment and a second fastening lower segment, both of which are sleeved on the second inner tube 24. The second fastening upper segment is arranged in a spaced manner with the second outer tube 22, and is closer to the first elastic body 13 than the second fastening lower segment. The second boss portion 232 is connected to the second fastening lower segment.

[0081] It should be understood that, due to the second boss part 232 being connected to the second fastening lower section, the second fastening upper section is spaced apart from the second outer tube 22. Therefore, the second fastening upper section and the second outer tube 22 form a second deformation space surrounding the second inner tube 24, and the second deformation space is arranged close to the first elastic body 13, thereby providing deformation space for the second elastic body 23 and also providing deformation space for the first elastic body 13.

[0082] Further, the second deformation space is in communication with the first deformation space and is located in the middle region of the suspension bushing. At this time, if the suspension bushing is subjected to an axial force, the suspension bushing is compressed from both ends in the axial direction to the middle, and the second deformation space and the first deformation space in the middle region of the suspension bushing can provide deformation space for the deformation of the first elastic body 13 and the second elastic body 23, which can better ensure the rigidity and elasticity requirements of the suspension bushing compared to the deformation space being located at both ends of the suspension bushing.

[0083] The first inner tube 14 includes a first upper tube section 141, a first middle tube section 142 connected between the first upper tube section 141 and a first lower tube section 143, and the first lower tube section 143 having an outer diameter greater than that of the first upper tube section 141. The outer diameter of the first middle tube section 142 gradually increases from the first upper tube section 141 to the first lower tube section 143. The first elastic body 13 is sleeved on the first upper tube section 141, the first middle tube section 142, and the first lower tube section 143.

[0084] In an example embodiment of the present application, the first elastic body 13 is in close contact with the outer surface of the first upper tube section 141, the outer surface of the first middle tube section 142, and the outer surface of the first lower tube section 143. Alternatively, the first elastic body 13 is connected in an interference fit with the outer surface of the first upper tube section 141, the outer surface of the first middle tube section 142, and the outer surface of the first lower tube section 143.

[0085] It should be understood that, after the first elastic body 13 is sleeved on the first upper tube section 141, the first middle tube section 142, and the first lower tube section 143, the first elastic body 13 is not easily slid along the axial direction of the first inner tube 14 from the first upper tube section 141 to the first lower tube section 143 due to the largest outer diameter of the first lower tube section 143. At the same time, the first elastic body 13 is prevented from sliding from the first lower tube section 143 to the first upper tube section 141 due to the presence of the first skirt part 122, thereby ensuring the installation stability of the first elastic body 13. In addition, since the outer diameter of the first middle tube section 142 gradually increases from the first upper tube section 141 to the first lower tube section 143, it is convenient for the first elastic body 13 to be sleeved and installed from the first upper tube section 141 to the first lower tube section 143.

[0086] The second inner tube 24 comprises a second upper tube segment 241, a second middle tube segment 242 connected between the second upper tube segment 241 and a second lower tube segment 243, and the outer diameter of the second lower tube segment 243 is smaller than that of the second upper tube segment 241, and the outer diameter of the second middle tube segment 242 gradually decreases from the second upper tube segment 241 to the second lower tube segment 243. The second elastic body 23 is sleeved on the second upper tube segment 241, the second middle tube segment 242 and the second lower tube segment 243.

[0087] In an example embodiment of the present application, the second elastic body 23 is in close contact with the outer surface of the second upper tube segment 241, the outer surface of the second middle tube segment 242 and the outer surface of the second lower tube segment 243. Alternatively, the second elastic body 23 is connected with the outer surface of the second upper tube segment 241, the outer surface of the second middle tube segment 242 and the outer surface of the second lower tube segment 243 in an interference fit.

[0088] It should be understood that after the second elastic body 23 is sleeved on the second upper tube segment 241, the second middle tube segment 242 and the second lower tube segment 243, the second elastic body 23 is not easy to slide along the axial direction of the second inner tube 24 from the second lower tube segment 243 to the second upper tube segment 241, because the outer diameter of the second upper tube segment 241 is the largest, and the second elastic body 23 is also prevented from sliding from the second upper tube segment 241 to the second lower tube segment 243 due to the presence of the second skirt portion 222, thereby ensuring the installation stability of the second elastic body 23. In addition, since the outer diameter of the second middle tube segment 242 gradually decreases from the second upper tube segment 241 to the second lower tube segment 243, it is convenient for the second elastic body 23 to be sleeved and installed from the second lower tube segment 243 to the second upper tube segment 241.

[0089] In the present application, when the suspension bushing is subjected to an axial force, the force can be transmitted to the first outer tube 12 through the first boss portion 132 and to the second outer tube 22 through the second boss portion 232, and since the first boss portion 132 and the second boss portion 232 are inclinedly arranged, it is easier to disperse the axial force to the first side peripheral portion 121 and the first skirt portion 122 and to the second side peripheral portion 221 and the second skirt portion 222, thereby converting part of the axial force into radial force to improve the axial resistance of the suspension bushing.

[0090] Meanwhile, when the first elastic body 13 is sleeved on the first inner tube 14 and the second elastic body 23 is sleeved on the second inner tube 24, due to the fact that the outer diameter of the first lower tube segment 143 of the first inner tube 14 is larger than that of the first upper tube segment 141, the outer diameter of the second upper tube segment 241 of the second inner tube 24 is larger than that of the second lower tube segment 243, and the first skirt portion 122 and the second skirt portion 222 exist, it can be ensured that the first elastic body 13 and the second elastic body 23 almost do not slide along the axial direction of the suspension bushing in the suspension bushing when the suspension bushing is subjected to an axial force.

[0091] Finally, the existence of the first deformation space and the second deformation space, and the fact that they are located in the middle region of the suspension bushing, can better ensure the rigidity and elasticity requirements of the suspension bushing compared to the case where the deformation spaces are located at both ends of the suspension bushing.

[0092] In summary, the suspension bushing is used in combination with the first bushing portion 11 and the second bushing portion 21 to convert part of the axial force into a radial force when the suspension bushing is subjected to an axial force, thereby breaking the limitation that the radial stiffness of a traditional rubber bushing is 2-3 times the axial stiffness.

[0093] The embodiment also provides a suspension system, which comprises a suspension bracket and the suspension bushing described above, and the suspension bushing is connected to the suspension bracket.

[0094] The embodiment also provides a vehicle, which comprises a vehicle body and the suspension system described above, and the suspension system is connected to the vehicle body.

[0095] For example, the vehicle body comprises a subframe. When the suspension system is connected to the subframe, the suspension bushing can be pre-pressed into the subframe.

[0096] It should be understood that the suspension bushing is usually used in the form of being pre-pressed into the subframe, which has an adverse effect on the stiffness, mode and strength of the subframe compared to the traditional suspension which needs an opening of the subframe. The application is beneficial to improving the overall stiffness, mode and strength of the subframe.

[0097] In the application, unless otherwise specified and limited, the terms such as "assembly", "connection" and the like should be understood in a broad sense, for example, they can be fixed connection, or detachable connection, or integrated; they can be mechanical connection, or electrical connection; they can be directly connected, or indirectly connected through an intermediate medium; they can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the application can be understood according to the specific circumstances.

[0098] Furthermore, the terms "first", "second", or the like are used only to describe a certain aspect, and do not imply or suggest relative importance or a number of the indicated technical features. Thus, the features defined with "first", "second" can include one or more of the features explicitly or implicitly. The meaning of "a plurality" is two or more, unless otherwise expressly and specifically defined. Also, the description of "some embodiments", "exemplarily" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application.

[0099] The illustrative expressions of the above terms are not necessarily directed to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples, without contradiction with each other.

[0100] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application, and any changes or modifications made in accordance with the claims and specification of the present application shall be within the scope of the present application.

Claims

1. A suspension bushing characterized by, The first bushing part comprises a first outer tube, a first inner tube and a first elastic body, the first outer tube is sleeved on the first inner tube, the first outer tube comprises a first side peripheral part extending along an axial direction of the first inner tube and a first skirt part extending along a radial direction of the first inner tube towards the first inner tube, the first elastic body is sleeved on the first inner tube and is located between the first side peripheral part and the first inner tube along the radial direction of the first inner tube; The second bushing part comprises a second outer tube, a second inner tube and a second elastic body, the second outer tube is sleeved on the second inner tube, the second outer tube comprises a second side peripheral part extending along an axial direction of the second inner tube and a second skirt part extending along a radial direction of the second inner tube towards the second inner tube, the second elastic body is sleeved on the second inner tube and is located between the second side peripheral part and the second inner tube along the radial direction of the second inner tube; The first elastic body and the second elastic body are located between the first skirt part and the second skirt part. The first outer tube further comprises a first arc-shaped connecting part connected between the first side peripheral part and the first skirt part, the first arc-shaped connecting part is connected with the first elastic body; 2. The suspension bushing of claim 1, wherein, The second outer tube further comprises a second arc-shaped connecting part connected between the second side peripheral part and the second skirt part, the second arc-shaped connecting part is connected with the second elastic body. The first elastic body comprises a first fixed part and a first boss part, the first fixed part is sleeved on the first inner tube, the first fixed part is spaced apart from the first outer tube, one end of the first boss part is connected to the first fixed part, and the other end of the first boss part is in contact with at least part of the first side peripheral part, the first arc-shaped connecting part and at least part of the first skirt part; 3. The suspension bushing of claim 2, wherein, The second elastic body comprises a second fixed part and a second boss part, the second fixed part is sleeved on the second inner tube, the second fixed part is spaced apart from the second outer tube, one end of the second boss part is connected to the second fixed part, and the other end of the second boss part is in contact with at least part of the second side peripheral part, the second arc-shaped connecting part and at least part of the second skirt part. The first boss part is inclinedly arranged between the first fixed part and the first outer tube, and the end of the first boss part in contact with the first outer tube is inclinedly arranged along the axial direction of the first inner tube towards the direction away from the second outer tube; 4. The suspension bushing of claim 3, wherein, The second boss part is inclinedly arranged between the second fixed part and the second outer tube, and the end of the second boss part in contact with the second outer tube is inclinedly arranged along the axial direction of the second inner tube towards the direction away from the first outer tube. The first fixed part is arranged around the first inner tube, and the first boss part is arranged around the first fixed part; 5. The floating bushing of claim 3, wherein, The second fixed part is arranged around the second inner tube, and the second boss part is arranged around the second fixed part. ​ 6. The floating bushing of claim 3, wherein, The first fixed part comprises a plurality of first fixed blocks, each of which is arranged around the first inner tube at intervals, and the first boss part comprises a plurality of first bosses, one end of each of which is connected to the first fixed block, and the other end of each of which is in contact with the first side peripheral part, the first arc-shaped connecting part and the first skirt part, and one first fixed block is arranged between two adjacent first bosses; The second fixed part comprises a plurality of second fixed blocks, each of which is arranged around the second inner tube at intervals, and the second boss part comprises a plurality of second bosses, one end of each of which is connected to the second fixed block, and the other end of each of which is in contact with the second side peripheral part, the second arc-shaped connecting part and the second skirt part, and one second fixed block is arranged between two adjacent second bosses.

7. The floating bushing of claim 3, wherein, The first fixed part comprises a first fastening upper segment and a first fastening lower segment, both of which are sleeved on the first inner tube, the first fastening lower segment is arranged at intervals from the first outer tube, and is closer to the second elastic body than the first fastening upper segment, and the first boss part is connected to the first fastening upper segment; The second fixed part comprises a second fastening upper segment and a second fastening lower segment, both of which are sleeved on the second inner tube, the second fastening upper segment is arranged at intervals from the second outer tube, and is closer to the first elastic body than the second fastening lower segment, and the second boss part is connected to the second fastening lower segment.

8. The floating bushing of claim 1, wherein, The first inner tube comprises a first upper tube segment, a first intermediate tube segment and a first lower tube segment, the first intermediate tube segment is connected between the first upper tube segment and the first lower tube segment, the outer diameter of the first lower tube segment is greater than that of the first upper tube segment, and the outer diameter of the first intermediate tube segment gradually increases from the first upper tube segment to the first lower tube segment; The first elastic body is sleeved on the first upper tube segment, the first intermediate tube segment and the first lower tube segment; The second inner tube comprises a second upper tube segment, a second intermediate tube segment and a second lower tube segment, the second intermediate tube segment is connected between the second upper tube segment and the second lower tube segment, the outer diameter of the second lower tube segment is smaller than that of the second upper tube segment, and the outer diameter of the second intermediate tube segment gradually decreases from the second upper tube segment to the second lower tube segment; The second elastic body is sleeved on the second upper tube segment, the second intermediate tube segment and the second lower tube segment.

9. A suspension system characterized by, A suspension system comprising a suspension bracket and the suspension bushing according to any one of claims 1-8, wherein the suspension bushing is connected to the suspension bracket.

10. A vehicle characterized by comprising: A suspension system comprising a vehicle body and the suspension system according to claim 9, wherein the suspension system is connected to the vehicle body.

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