Vibration reduction bolt, support assembly and vehicle

Abstract

The utility model discloses a damping bolt, a support assembly and a vehicle, the damping bolt comprises a bolt, the bolt comprises a nut and a screw connected with the nut; the sleeve is arranged on the screw rod in a sleeving manner; the vibration reduction sleeve is arranged and fixed on the outer side of the sleeve in a sleeving mode, at least one end of the vibration reduction sleeve exceeds the end face of the sleeve in the axial direction of the screw rod, a clamping groove is formed in the peripheral face of the vibration reduction sleeve, and the vibration reduction sleeve is suitable for being clamped on the peripheral edge of a bolt hole through the clamping groove. According to the vibration reduction bolt, the effective vibration isolation effect can be achieved in the energy transmission process, and therefore vibration and abnormal sound can be effectively reduced. In addition, the number of parts can be effectively reduced, the assembling procedure is effectively simplified, and therefore the assembling efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vibration-damping bolt, a bracket assembly and a vehicle. Background Art

[0002] With the rapid development of the automotive industry, the requirements for automobile vibration reduction are becoming increasingly higher, and how the automobile's electrical components are assembled with parts is particularly important. For example, in the existing technology, the lidar module on the roof is connected to the roof with T-bolts, but due to the high vibration frequency of the lidar module itself, abnormal vibration and noise problems occur.

[0003] In the prior art, conventional bolts are usually used to rigidly connect electrical components to brackets. This rigid connection causes vibrations inside the electrical components to be transmitted through the bracket to the vehicle body and then to the interior of the vehicle, affecting the riding experience of passengers in the vehicle.

[0004] Another commonly used solution to address vibration transmission in electrical components is to add an additional vibration-damping washer to the existing rigid connection to isolate vibration. However, this solution has problems such as overlapping accessory functions, a large number of parts, long assembly time, and high costs. At the same time, this solution has significant restrictions on assembly space and is relatively limited in scope of application. Utility Model Content

[0005] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, it provides a vibration-damping bolt that effectively reduces vibration and abnormal noise during energy transfer. Furthermore, it effectively reduces the number of parts and simplifies the assembly process, thereby effectively improving assembly efficiency.

[0006] The utility model also provides a bracket assembly having the vibration-damping bolt.

[0007] The utility model also provides a vehicle having the bracket assembly.

[0008] According to the first aspect of the present invention, the vibration-damping bolt includes: a bolt, which includes a nut and a screw connected to the nut; a sleeve, which is sleeved on the screw; a vibration-damping sleeve, which is sleeved and fixed on the outside of the sleeve, and in the axial direction of the screw, at least one end of the vibration-damping sleeve exceeds the end face of the sleeve, and a groove is formed on the outer peripheral surface of the vibration-damping sleeve, and the vibration-damping sleeve is suitable for being clamped on the circumference of the bolt hole through the groove.

[0009] According to the vibration-damping bolt of the present invention, a bolt, a sleeve, and a vibration-damping sleeve are provided in the vibration-damping bolt. The bolt includes a nut and a screw connected to the nut, the sleeve is sleeved on the screw, and the vibration-damping sleeve is sleeved and fixed on the outside of the sleeve. In the axial direction of the screw, at least one end of the vibration-damping sleeve extends beyond the end face of the sleeve. A retaining groove is formed on the outer peripheral surface of the vibration-damping sleeve. The vibration-damping sleeve is adapted to be retained by the retaining groove on the circumference of the bolt hole, thereby effectively isolating vibrations during energy transfer, thereby effectively reducing vibrations and abnormal noises. Furthermore, the number of parts can be effectively reduced, and the assembly process can be effectively simplified, thereby effectively improving assembly efficiency.

[0010] In some embodiments, a boss protruding radially outward is formed on the outer peripheral surface of the sleeve, and an end surface of the vibration-damping sleeve facing away from the nut abuts against the boss.

[0011] In some embodiments, the boss is formed at an end of the sleeve facing away from the nut and extends in a ring shape along the circumference of the sleeve.

[0012] In some embodiments, an internal thread is formed on the inner circumference of the sleeve, and the internal thread is adapted to the external thread on the screw.

[0013] In some embodiments, the sleeve is a steel sleeve.

[0014] In some embodiments, the screw includes a first section and a second section arranged along the axial direction of the screw, the first section is formed with an external thread, the second section is connected between the first section and the nut, and at least a portion of the vibration damping sleeve is arranged on the radial outside of the second section and abuts against the nut.

[0015] In some embodiments, the sleeve is completely sleeved on the second section; or, a portion of the sleeve is sleeved on the second section, and the other portion is threadedly connected to the first section.

[0016] In some embodiments, the vibration damping sleeve is a rubber piece.

[0017] According to the second aspect of the present invention, the bracket assembly includes: a matching bracket and a vibration-damping bolt according to the first aspect of the present invention, wherein the matching bracket is formed with a bolt hole, and the vibration-damping sleeve is clamped on the periphery of the bolt hole through the clamping groove.

[0018] According to the second aspect of the present invention, the bracket assembly, by providing the vibration-damping bolts of the first aspect, can effectively isolate vibrations during energy transfer, thereby effectively reducing vibrations and abnormal noises. Furthermore, it can effectively reduce the number of parts and simplify the assembly process, thereby effectively improving assembly efficiency.

[0019] The vehicle according to the third aspect of the present invention includes: a vehicle body; a bracket assembly according to the second aspect of the present invention, which is fixed to the vehicle body; a component to be fixed and a nut, wherein the component to be fixed is provided with a fixing hole, one end of the screw rod passes through the fixing hole, and the nut is threadedly connected to the screw rod and is located on the side of the component to be fixed that is away from the mating bracket.

[0020] The vehicle according to the third aspect of the present invention, by providing the bracket assembly according to the second aspect, can effectively isolate vibrations during energy transfer, thereby effectively reducing vibrations and abnormal noises. Furthermore, it can effectively reduce the number of parts and simplify the assembly process, thereby effectively improving assembly efficiency.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an exploded view of a bracket assembly according to an embodiment of the present utility model.

[0023] Reference numerals:

[0024] 100, bracket assembly;

[0025] 10. Nut;

[0026] 20. Screw; 21. First section; 22. Second section;

[0027] 30. Sleeve; 31. Boss;

[0028] 40. Vibration damping sleeve;

[0029] 50. Matching bracket; 501. Bolt hole; 51. Fixing part. DETAILED DESCRIPTION

[0030] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] Reference below Figure 1 A vibration-damping bolt according to an embodiment of the first aspect of the present utility model is described.

[0032] like Figure 1 As shown, the vibration-damping bolt according to the embodiment of the first aspect of the present utility model includes: a bolt, a sleeve 30 and a vibration-damping sleeve 40.

[0033] The bolt includes a nut 10 and a screw 20 connected to the nut 10; a sleeve 30 is sleeved on the screw 20; a vibration-damping sleeve 40 is sleeved and fixed on the outside of the sleeve 30, and in the axial direction of the screw 20, at least one end of the vibration-damping sleeve 40 exceeds the end face of the sleeve 30, and a groove is formed on the outer peripheral surface of the vibration-damping sleeve 40, and the vibration-damping sleeve 40 is suitable for being clamped on the periphery of the bolt hole 501 through the groove.

[0034] For example Figure 1 As shown, the screw 20 extends in the vertical direction and is located above the nut 10, with the lower end of the screw 20 fixedly connected to the upper surface of the nut 10. Furthermore, the shape of the nut 10 can be square or regular hexagonal. The sleeve 30 extends in the vertical direction and can have a circular cross-sectional shape.

[0035] When the vibration-damping sleeve 40 is mounted and fixed on the outer side of the sleeve 30, the outer circumferential surface of the sleeve 30 abuts against the inner circumferential surface of the vibration-damping sleeve 40. For example, the end surface of one end of the vibration-damping sleeve 40 extends beyond the end surface of one end of the sleeve 30; or, for another example, the end surface of one end of the vibration-damping sleeve 40 extends beyond the end surface of one end of the sleeve 30, and the end surface of the other end of the vibration-damping sleeve 40 extends beyond the end surface of the other end of the sleeve 30.

[0036] In a specific example, Figure 1 As shown, the lower end of the vibration-damping sleeve 40 extends beyond the lower end surface of the sleeve 30, and the upper end of the vibration-damping sleeve 40 is flush with the upper end surface of the sleeve 30. A clamping groove extending along the circumferential direction of the vibration-damping sleeve 40 is formed on the outer peripheral surface of the vibration-damping sleeve 40. The vibration-damping sleeve 40 can be clamped on the circumference of the bolt hole 501 through the clamping groove, so that the vibration-damping sleeve 40 can be effectively fixed in the bolt hole 501, thereby effectively fixing the sleeve 30 and the bolt.

[0037] In this embodiment, when installing the vibration-damping bolts, for example Figure 1 As shown, the sleeve 30 is first installed in the vibration-damping sleeve 40, so that the vibration-damping sleeve 40 is placed on and fixed to the outside of the sleeve 30. At this time, the upper end surface of the vibration-damping sleeve 40 is flush with the upper end surface of the sleeve 30, the lower end surface of the vibration-damping sleeve 40 extends beyond the lower end surface of the sleeve 30, and the inner circumference of the vibration-damping sleeve 40 abuts the outer circumference of the sleeve 30. Then, the screw rod 20 of the bolt is passed through the sleeve 30, so that the sleeve 30 is placed on the screw rod 20.

[0038] Therefore, when vibration occurs, the vibration-damping sleeve 40 can effectively absorb the energy generated by the vibration through its own deformation, thereby effectively reducing the generation of vibration and abnormal noise. Furthermore, before installing the vibration-damping bolt in the bolt hole 501, the bolt, sleeve 30, and vibration-damping sleeve 40 of the vibration-damping bolt can be pre-assembled together. The assembled vibration-damping bolt can then be directly installed in the bolt hole 501. This optimizes the structure of the vibration-damping bolt, making the bolt, sleeve 30, and vibration-damping sleeve 40 an integral part, thereby effectively reducing the number of parts. Pre-assembling the vibration-damping bolt can also effectively increase the speed of on-site installation of the vibration-damping bolt, effectively ensure the quality of on-site installation of the vibration-damping bolt, and thus effectively improve installation efficiency.

[0039] According to the vibration-damping bolt of the embodiment of the present invention, a bolt, a sleeve 30, and a vibration-damping sleeve 40 are provided in the vibration-damping bolt. The bolt includes a nut 10 and a screw 20 connected to the nut 10. The sleeve 30 is sleeved on the screw 20. The vibration-damping sleeve 40 is sleeved and fixed on the outside of the sleeve 30. In the axial direction of the screw 20, at least one end of the vibration-damping sleeve 40 extends beyond the end face of the sleeve 30. A retaining groove is formed on the outer peripheral surface of the vibration-damping sleeve 40. The vibration-damping sleeve 40 is adapted to be retained by the retaining groove on the circumference of the bolt hole 501, thereby effectively isolating vibrations during energy transfer, thereby effectively reducing vibrations and abnormal noises. In addition, the number of parts can be effectively reduced, and the assembly process can be effectively simplified, thereby effectively improving assembly efficiency.

[0040] In one embodiment of the present invention, Figure 1 As shown, a boss 31 protruding radially outward is formed on the outer peripheral surface of the sleeve 30 , and an end surface of the vibration-damping sleeve 40 facing away from the nut 10 abuts against the boss 31 .

[0041] When the vibration-damping sleeve 40 is fitted over and secured to the outside of the sleeve 30, the lower side of the boss 31 abuts against the upper end face of the vibration-damping sleeve 40. This ensures that the clearance between the end faces of one end of the sleeve 30 and the end faces of the other end of the vibration-damping sleeve 40 meets the preset requirements, thereby effectively achieving precise positioning of the installation position of the sleeve 30. Furthermore, this effectively increases the contact area between the sleeve 30 and the vibration-damping sleeve 40, allowing the vibration-damping sleeve 40 to further absorb the energy generated by vibration, thereby effectively reducing vibration and abnormal noise.

[0042] In this embodiment, a boss 31 protruding radially outward is provided on the outer peripheral surface of the sleeve 30, and the end surface of the vibration-damping sleeve 40 facing away from the nut 10 abuts against the boss 31. This not only enables precise positioning of the installation position of the sleeve 30, but also effectively increases the contact area between the sleeve 30 and the vibration-damping sleeve 40, thereby effectively reducing vibration and abnormal noise.

[0043] In one embodiment of the present invention, Figure 1As shown, the boss 31 is formed at one end of the sleeve 30 away from the nut 10 and extends in a ring shape along the circumference of the sleeve 30. In a specific example, as shown in FIG. Figure 1 As shown, the boss 31 is formed on the upper end surface of the sleeve 30. Furthermore, the projection shape of the boss 31 in the vertical direction is a circular ring.

[0044] In this embodiment, the boss 31 is disposed at the end of the sleeve 30 facing away from the nut 10 and extends in an annular shape along the circumference of the sleeve 30. This allows the boss 31 to provide all-round support for the vibration-damping sleeve 40, ensuring that the vibration-damping sleeve 40 is fixed in the axial direction, thereby effectively fixing the vibration-damping sleeve 40. Furthermore, this allows for more uniform stress distribution, avoiding localized stress concentration, and effectively improving the durability and stability of the structure.

[0045] In one embodiment of the present invention, Figure 1 As shown, the inner circumference of the sleeve 30 is formed with internal threads that mate with the external threads on the screw 20. In other words, the sleeve 30 can be screwed directly into the external threads on the screw 20 via the internal threads, thereby effectively adjusting the position of the sleeve 30 on the screw 20 according to different installation requirements and enabling precise adjustment of the position of the sleeve 30 on the screw 20. Furthermore, the threaded connection between the sleeve 30 and the screw 20 effectively improves the stability of the connection between the sleeve 30 and the screw 20, maintaining a good connection between the sleeve 30 and the screw 20 even in a vibrating environment.

[0046] This embodiment provides an internal thread on the inner circumference of the sleeve 30, and the internal thread is adapted to the external thread on the screw 20. This not only effectively realizes the precise adjustment of the position of the sleeve 30 on the screw 20, but also effectively improves the stability and reliability of the connection between the sleeve 30 and the screw 20, avoids loosening between the sleeve 30 and the screw 20, and thus effectively ensures the connection effect.

[0047] In one embodiment of the present invention, Figure 1 As shown, the sleeve 30 is made of steel. It should be noted that steel has the advantages of high strength and good fatigue resistance. Therefore, using a steel sleeve 30 can effectively improve the bearing capacity of the sleeve 30. At the same time, in high-vibration environments, the steel sleeve 30 can withstand repeated stress, thereby effectively reducing the risk of fatigue damage. In addition, the steel sleeve 30 has excellent corrosion and wear resistance, which can effectively reduce maintenance frequency and thus maintenance costs.

[0048] This embodiment, by setting the sleeve 30 as a steel sleeve 30, can effectively improve the bearing capacity, fatigue resistance, corrosion resistance and wear resistance of the sleeve 30, thereby effectively increasing the service life of the sleeve 30 and effectively reducing the cost.

[0049] In one embodiment of the present invention, Figure 1 As shown, the screw 20 includes a first section 21 and a second section 22 arranged along the axial direction of the screw 20, an external thread is formed on the first section 21, the second section 22 is connected between the first section 21 and the nut 10, and at least a portion of the vibration-damping sleeve 40 is arranged on the radial outside of the second section 22 and abuts against the nut 10.

[0050] For example Figure 1 As shown, the first section 21 of the screw 20 is located above the second section 22, and the first section 21 and the second section 22 are fixedly connected, and the second section 22 is fixedly connected to the nut 10. The external thread on the first section 21 can be adapted to the internal thread of the sleeve 30, so that the sleeve 30 can be screwed into the screw 20.

[0051] For example, the vibration damping sleeve 40 is partially sleeved on the radially outer side of the second section 22; in another example, the vibration damping sleeve 40 is completely sleeved on the radially outer side of the second section 22. Furthermore, the lengths of the first section 21 and the second section 22 can be set as needed, and the surface of the second section 22 can be set to a smooth surface.

[0052] When the sleeve 30 is sleeved on the screw 20, the lower end surface of the vibration-damping sleeve 40 abuts against the upper side surface of the nut 10 of the screw 20. In a specific example, Figure 1 As shown, the lower end surface of the vibration-damping sleeve 40 abuts against the upper side surface of the nut 10 of the screw rod 20 , and a gap exists between the lower end surface of the sleeve 30 and the upper side surface of the nut 10 of the screw rod 20 .

[0053] In this embodiment, the screw 20 is configured to include a first section 21 and a second section 22 arranged along the axial direction of the screw 20. An external thread is formed on the first section 21, and the second section 22 is connected between the first section 21 and the nut 10. At least a portion of the vibration-damping sleeve 40 is sleeved on the radially outer side of the second section 22 and abuts against the nut 10, which can effectively save processing costs and effectively increase the contact area between the bolt and the vibration-damping sleeve 40, thereby further improving the vibration reduction effect.

[0054] In one embodiment of the present invention, Figure 1 As shown, the sleeve 30 is completely sleeved on the second section 22 ; or, a portion of the sleeve 30 is sleeved on the second section 22 , and the other portion is threadedly connected to the first section 21 .

[0055] For example, the sleeve 30 is entirely sleeved on the second section 22, that is, the internal thread of the sleeve 30 does not contact the external thread of the first section 21. Thus, the sleeve 30 can move on the second section 22, so that the position of the sleeve 30 on the second section 22 can be adjusted according to different installation requirements.

[0056] In this embodiment, the sleeve 30 is completely sleeved on the second section 22, which can effectively adjust the position of the sleeve 30 on the second section 22, thereby effectively increasing the flexibility of the sleeve 30, thereby effectively meeting different installation requirements.

[0057] For another example, a portion of the sleeve 30 is sleeved on the second section 22, and the other portion is threadedly connected to the first section 21, that is, part of the internal thread of the sleeve 30 is connected to the external thread of the first section 21, thereby effectively improving the reliability of the connection between the sleeve 30 and the screw 20.

[0058] In this embodiment, a portion of the sleeve 30 is sleeved on the second section 22, and the other portion is threadedly connected to the first section 21, which can effectively improve the stability of the connection between the sleeve 30 and the screw rod 20, thereby effectively ensuring the integrity of the vibration-damping bolt, and further effectively ensuring the vibration-damping effect of the vibration-damping bolt.

[0059] In one embodiment of the present invention, Figure 1 As shown, the vibration damping sleeve 40 is a rubber member. It should be noted that rubber material has good elasticity and recovery ability, and can convert vibration energy into heat energy, thereby effectively absorbing and buffering vibration.

[0060] In addition, the rubber parts made of rubber materials have strong plasticity and can be formed through various processes such as molding and extrusion. It is easy to manufacture vibration damping sleeves 40 of different shapes and sizes, and rubber vibration damping sleeves 40 of different hardness grades can be customized according to specific application requirements to meet the requirements of different working conditions.

[0061] In this embodiment, by configuring the vibration-damping sleeve 40 as a rubber member, the vibration-damping sleeve 40 can effectively absorb the energy generated by vibration, thereby effectively improving the vibration-damping effect of the vibration-damping sleeve 40. In addition, the rubber sleeve can be customized to meet different needs, thereby effectively expanding the scope of application and effectively reducing costs.

[0062] The bracket assembly 100 according to the embodiment of the second aspect of the present invention includes: a matching bracket 50 and a vibration-damping bolt according to the embodiment of the first aspect of the present invention.

[0063] The matching bracket 50 is formed with a bolt hole 501, and the vibration damping sleeve 40 is clamped on the periphery of the bolt hole 501 through a clamping groove. Figure 1 As shown, a bolt hole 501 is provided on the matching bracket 50, and the vibration damping sleeve 40 is clamped on the periphery of the bolt hole 501 through a slot. Furthermore, the height of the slot in the vertical direction can be consistent with the thickness of the matching bracket 50 in the vertical direction.

[0064] According to the bracket assembly 100 of the second embodiment of the present invention, by providing the vibration-damping bolts of the first embodiment, it can effectively isolate vibrations during energy transfer, thereby effectively reducing vibrations and abnormal noises. Furthermore, it can effectively reduce the number of parts and simplify the assembly process, thereby effectively improving assembly efficiency.

[0065] The vehicle according to the embodiment of the third aspect of the present invention includes: a vehicle body, the bracket assembly 100 according to the embodiment of the second aspect of the present invention, a part to be fixed 51 and a nut.

[0066] Bracket assembly 100 is secured to the vehicle body. The portion to be secured 51 is provided with a fixing hole, through which one end of a screw 20 passes. A nut is threaded onto the screw 20 and located on the side of the portion to be secured 51 facing away from the mating bracket 50. For example, bracket assembly 100 may have fixing portions 51 on both the left and right sides of the mating bracket 50. These fixing portions 51 allow bracket assembly 100 to be welded to the vehicle body, eliminating the need for holes in the vehicle body's sheet metal and effectively reducing the risk of water leakage. For example, portion to be secured 51 may be a component with a high vibration frequency, such as a lidar module.

[0067] In a specific example, Figure 1 As shown, the nut is located on the upper side of the sleeve 30 and is sleeved onto the screw 20. The fixed portion 51 is provided with a fixing hole, through which the fixed portion 51 is fixed between the sleeve 30 and the bolt. Furthermore, the fixed portion 51 is provided with multiple fixing holes. For example, the number of fixing holes can be two, three, four, five, or six or more. The multiple fixing holes correspond one-to-one with the multiple bracket assemblies 100. This allows the fixed portion 51 to be effectively tightened from the outside, effectively reducing vibration and noise.

[0068] The vehicle according to the third embodiment of the present invention includes the bracket assembly 100 according to the second embodiment of the present invention. For example, the bracket assembly 100 is installed in the vehicle and can be controlled by the vehicle's central console.

[0069] The vehicle according to the third embodiment of the present invention, by providing the bracket assembly 100 of the second embodiment, can effectively isolate vibrations during energy transfer, thereby effectively reducing vibrations and abnormal noises. Furthermore, the number of parts can be effectively reduced, and the assembly process can be effectively simplified, thereby effectively improving assembly efficiency.

[0070] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 should not be understood as a limitation to the present invention.

[0071] 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 specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0072] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0074] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vibration-damping bolt, characterized in that: include: A bolt, comprising a nut and a screw connected to the nut; a sleeve, wherein the sleeve is sleeved on the screw; A vibration-damping sleeve is mounted and fixed on the outside of the sleeve. In the axial direction of the screw, at least one end of the vibration-damping sleeve exceeds the end face of the sleeve. A groove is formed on the outer peripheral surface of the vibration-damping sleeve. The vibration-damping sleeve is suitable for being clamped on the circumference of the bolt hole through the groove.

2. The vibration-damping bolt according to claim 1, characterized in that: A boss protruding radially outward is formed on the outer peripheral surface of the sleeve, and an end surface of the vibration-damping sleeve facing away from the nut abuts against the boss.

3. The vibration-damping bolt according to claim 2, characterized in that: The boss is formed at one end of the sleeve away from the nut and extends in a ring shape along the circumference of the sleeve.

4. The vibration-damping bolt according to claim 1, characterized in that: An internal thread is formed on the inner circumferential surface of the sleeve, and the internal thread is adapted to the external thread on the screw.

5. The vibration-damping bolt according to claim 1, characterized in that: The sleeve is a steel sleeve.

6. The vibration-damping bolt according to any one of claims 1 to 5, characterized in that: The screw includes a first section and a second section arranged along the axial direction of the screw, the first section is formed with an external thread, the second section is connected between the first section and the nut, and at least a portion of the vibration damping sleeve is arranged on the radial outside of the second section and abuts against the nut.

7. The vibration-damping bolt according to claim 6, characterized in that: The sleeve is completely sleeved on the second section; or, a part of the sleeve is sleeved on the second section, and the other part is threadedly connected to the first section.

8. The vibration-damping bolt according to claim 1, characterized in that: The vibration damping sleeve is a rubber piece.

9. A bracket assembly, characterized in that: include: The matching bracket and the vibration-damping bolt according to any one of claims 1 to 8, wherein a bolt hole is formed on the matching bracket, and the vibration-damping sleeve is clamped on the periphery of the bolt hole through the clamping groove.

10. A vehicle, characterized in that: include: body; The bracket assembly according to claim 9, wherein the bracket assembly is fixed to the vehicle body; The component to be fixed and the nut, wherein the component to be fixed is provided with a fixing hole, one end of the screw rod passes through the fixing hole, and the nut is threadedly connected to the screw rod and is located on a side of the component to be fixed away from the matching bracket.

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