A vehicle tailgate vibration damping structure and vehicle

Abstract

The utility model provides a kind of vehicle tail door vibration buffering structure and vehicle, including at least one group of vibration damper group and inflation assembly, the vibration damper group includes two vibration dampers symmetrically arranged on the tail of vehicle, the inflation cavity is formed inside the vibration damper, the inflation assembly is communicated with the inflation cavity;The inflation assembly is used to synchronously adjust the inflation pressure in the inflation cavity of two vibration dampers, to adjust the position of the mating surface of the vibration damper;The mating surface of the vibration damper is used to contact with vehicle tail door, to carry out multidirectional vibration buffering to the vehicle tail door. By the utility model embodiment, the NVH (noise, vibration and sound roughness) performance of vehicle can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle sound insulation, and in particular to a vehicle tailgate vibration buffer structure and a vehicle. Background Technology

[0002] Because the tailgate and body of a vehicle are manufactured separately, manufacturing tolerances exist between them, leading to fit tolerances. Therefore, in related technologies, a fixed buffer block is installed between the tailgate and the body to compensate for these fit tolerances. However, fixed buffer blocks suffer from problems such as insufficient interference, uncontrollable reaction force, aging, or inconsistent reaction force due to product differences when installed on both sides, resulting in poor NVH (Noise, Vibration, and Harshness) performance of the vehicle. Utility Model Content

[0003] In view of the above problems, this utility model is proposed to provide a vehicle tailgate vibration buffer structure and a vehicle that overcomes or at least partially solves the above problems.

[0004] To address the aforementioned problems, in a first aspect of this utility model, an embodiment discloses a vehicle tailgate vibration damping structure, comprising: at least one set of vibration damper groups and an inflation assembly.

[0005] The vibration damper group includes two vibration dampers symmetrically arranged on the rear of the vehicle. An inflation chamber is formed inside the vibration damper, and the inflation component is connected to the inflation chamber.

[0006] The inflation assembly is used to synchronously adjust the inflation pressure in the inflation chambers of the two vibration dampers in order to adjust the position of the mating surfaces of the vibration dampers.

[0007] The mating surface of the vibration damper is used to contact the vehicle tailgate to provide multi-directional vibration damping for the vehicle tailgate.

[0008] Optionally, the vibration damper includes: a fixed base, an airbag, and an air inlet connector.

[0009] The mounting base is fixed to the rear of the vehicle; the airbag is located on the side of the mounting base away from the rear of the vehicle, and the side of the airbag away from the mounting base is the mating surface; the airbag and the interior of the mounting base form an inflation chamber; the inflation chamber is connected to the inflation assembly through the air inlet interface; when the pressure in the inflation chamber changes, the volume of the airbag changes accordingly to adjust the position of the mating surface.

[0010] Optionally, the airbag is made of rubber, and the airbag is vulcanized to the fixing seat.

[0011] Optionally, the vibration damper further includes: an airbag limiting member.

[0012] The airbag limiting member is located inside the inflation cavity and is used to limit the range of motion of the mating face towards the fixed seat.

[0013] Optionally, the vibration damper further includes: a first seal,

[0014] The first seal is located between the mounting base and the rear of the vehicle.

[0015] Optionally, the vibration damper further includes: a second seal.

[0016] The second seal is located between the inflation chamber and the air inlet.

[0017] Optionally, the inflation assembly includes an air supply unit, a high-pressure air pipe, and an active control valve.

[0018] The active control valve is located between the air supply unit and the vibration buffer. The active control valve is connected to the air supply unit and the vibration buffer through a high-pressure air pipe. The air supply unit is used to provide high-pressure gas. The active control valve is used to synchronously adjust the inflation pressure in the inflation chambers of the two vibration buffers.

[0019] Optionally, it also includes:

[0020] A wear-resistant layer is applied to the mating surface; the mating surface contacts the vehicle tailgate through the wear-resistant layer.

[0021] Optionally, the vibration damper is used to dampen vibrations in the YZ or YX directions of the vehicle tailgate.

[0022] In a second aspect, an embodiment of the present invention discloses a vehicle including the vehicle tailgate vibration buffer structure described above.

[0023] The embodiments of this utility model include at least one of the following advantages:

[0024] This invention utilizes an inflation assembly to synchronously adjust the inflation pressure in the inflation chambers of two vibration dampers, thereby adjusting the position of the mating surfaces of the vibration dampers. The vibration dampers are used to contact the vehicle's tailgate based on these mating surfaces, providing multi-directional vibration damping for the tailgate. By inflating the vibration dampers with the inflation assembly, the interference of the left and right vibration dampers is adaptively adjusted, absorbing dimensional variations in the tailgate system. The synchronous and stable air pressure of the two dampers ensures that the tailgate reaction force is consistent and controllable. The air pressure can be dynamically adjusted based on different dynamic and static operating conditions of the vehicle, solving problems such as tailgate swaying and impact, high latch unlocking force, high tailgate closing force, and increased abnormal noise, effectively improving the vehicle's NVH (noise, vibration, and harshness) performance. Attached Figure Description

[0025] Figure 1 This is a schematic diagram showing the position of a vehicle tailgate vibration buffer structure according to the present invention;

[0026] Figure 2 This is a schematic diagram of a vehicle tailgate vibration buffer structure according to the present invention;

[0027] Figure 3 This is a cross-sectional schematic diagram of a vibration buffer structure for a vehicle tailgate according to the present invention.

[0028] Figure 4 This is a schematic diagram of the external shape of the vibration buffer of a vehicle tailgate vibration buffer structure according to the present invention.

[0029] Figure 5 This is a schematic diagram of the stiffness curve of a vibration buffer in a vehicle tailgate vibration buffer structure according to the present invention.

[0030] Figure 6 This is a schematic diagram of the external shape of a vibration buffer in another vehicle tailgate vibration buffer structure according to the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100-Vibration damper assembly, 110-Vibration damper, 111-Inflation chamber, 112-Fixing base, 113-Airbag, 114-Air inlet connector, 115-Airbag limiting component;

[0033] 200 - Inflation assembly, 210 - Air supply unit, 220 - High-pressure air hose, 230 - Active control valve;

[0034] 10 - Rear of the vehicle. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0036] The implementation of the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings.

[0037] You can refer to Figure 1 This diagram shows the position of a vibration buffer structure for a vehicle tailgate according to the present invention; see reference. Figure 2 A schematic diagram of a vehicle tailgate vibration buffer structure according to this utility model is shown; see reference Figure 3 This diagram shows a cross-sectional schematic of a vibration damper in a vehicle tailgate vibration buffer structure according to the present invention; the vehicle tailgate vibration buffer structure includes: at least one set of vibration damper groups 100 and an inflation assembly 200.

[0038] The vibration damper group 100 includes two vibration dampers 110 symmetrically arranged on the rear of the vehicle 10. An inflation chamber 111 is formed inside the vibration damper 110, and the inflation assembly 200 is connected to the inflation chamber 111.

[0039] The inflation assembly 200 is used to synchronously adjust the inflation pressure in the inflation chambers 111 of the two vibration buffers 110, so as to adjust the position of the mating surfaces of the vibration buffers 110.

[0040] The mating surface of the vibration damper 110 is used to contact the vehicle tailgate to provide multi-directional vibration damping for the vehicle tailgate.

[0041] In this embodiment of the invention, the vehicle tailgate vibration damping structure may include at least one set of vibration damper group 100 and an inflation assembly 200. When there is one set of vibration damper group 100, it can be disposed in the middle region of the vehicle tailgate 10, thereby forming a simply supported beam with the position of the tailgate hinge, which allows the vehicle tailgate to better engage with the vehicle tailgate 10 and reduces deformation of the vehicle tailgate. When there are two or more sets of vibration damper group 100, they can be disposed on the vehicle tailgate 10 between the hinge and the engagement structure of the vehicle tailgate, according to mechanical requirements. Both the inflation assembly 200 and the vibration damper group 100 can be disposed on the vehicle tailgate 10, thereby reducing the length of the air passage and ensuring the reliability of the vehicle tailgate vibration damping structure.

[0042] One set of vibration damper groups 100 may include two vibration dampers 110, which are symmetrically arranged on the rear end 10 of the vehicle. That is, one vibration damper 110 can be located on the left side of the rear end 10, and the other vibration damper 110 can be located on the left side of the rear end 10. The two vibration dampers 110 have identical structures. Each vibration damper 110 has an inflation chamber 111 inside, which can communicate with the inflation assembly 200. The inflation assembly 200 synchronously adjusts the inflation pressure in the inflation chambers 111 of the two vibration dampers 110, meaning that the internal inflation pressure of the two vibration dampers 110 can be adjusted synchronously. The volume of the inflation chambers 111 in the vibration dampers 110 changes accordingly based on the inflation pressure, thereby adjusting the position of the mating surfaces of the vibration dampers 110. When inflating, the mating surface of the vibration damper 110 moves away from the rear of the vehicle 10, which can increase the amount of interference between the rear of the vehicle 10 and the tailgate. When deflating, the mating surface of the vibration damper 110 moves closer to the rear of the vehicle 10, which reduces the amount of interference between the rear of the vehicle 10 and the tailgate and reduces the reaction force exerted by the vibration damper 110 on the tailgate.

[0043] The mating surface of the vibration damper 110 contacts the tailgate of the vehicle, and the air pressure of the internal inflation chamber 111 is used to buffer the tailgate of the vehicle in multiple directions at the same time, so as to buffer the vibration between the rear of the vehicle 10 and the tailgate of the vehicle in all directions.

[0044] This embodiment of the invention uses an inflation assembly 200 to synchronously adjust the inflation pressure in the inflation chambers 111 of the two vibration dampers 110, thereby adjusting the position of the mating surfaces of the vibration dampers 110. The vibration dampers 110 are used to contact the vehicle tailgate based on the mating surfaces to provide multi-directional vibration damping for the vehicle tailgate. By inflating the vibration dampers 110 through the inflation assembly 200, the interference of the left and right vibration dampers 110 is adaptively adjusted, absorbing the dimensional changes of the tailgate system. The synchronous and stable air pressure of the two dampers ensures that the magnitude of the tailgate reaction force is consistent and controllable. The air pressure can be dynamically adjusted based on different dynamic and static operating conditions of the vehicle, solving problems such as tailgate shaking and impact, large unlocking force of the latch, large closing force of the tailgate, and aggravated abnormal noise, and can effectively improve the NVH (noise, vibration, and harshness) performance of the vehicle.

[0045] In an optional embodiment of this utility model, reference can be made to Figure 3 and Figure 4 The vibration damper 110 includes: a fixed base 112, an airbag 113, and an air inlet 114.

[0046] The mounting base 112 is fixed to the rear end 10 of the vehicle; the airbag 113 is located on the side of the mounting base 112 away from the rear end 10 of the vehicle, and the side of the airbag 113 away from the mounting base 112 is the mating surface; the airbag 113 and the interior of the mounting base 112 form an inflation chamber 111; the inflation chamber 111 is connected to the inflation assembly 200 through the air inlet 114; when the pressure in the inflation chamber 111 changes, the volume of the airbag 113 changes accordingly to adjust the position of the mating surface.

[0047] The vibration damper 110 may include three parts: a mounting base 112, an airbag 113, and an air intake interface 114. The mounting base 112 serves as the load-bearing foundation for the vibration damper 110 and provides a mounting base for other components. The mounting base 112 can be fixed to the rear end 10 of the vehicle, allowing the entire vibration damper 110 to be securely attached to the rear end 10. For example, the mounting base 112 may have two through holes, and it is connected to the rear end 10 of the vehicle using screws. The mounting base 112 can be made of plastic or aluminum.

[0048] The airbag 113 can be connected to the mounting base 112 and is positioned on the side of the mounting base 112 away from the rear end 10 of the vehicle. The side of the airbag 113 away from the mounting base 112 is a mating surface that can contact the vehicle's tailgate. The airbag 113 is at least 3mm thick to improve wear resistance and deformation resistance. The internal stiffness curve of the airbag 113 is designed as follows... Figure 5 As shown, the air pressure can be adjusted according to the reaction force requirements of the tailgate to place the vibration damper 110 in different interference positions, achieving an adaptive absorption effect of poor fit between the tailgate and the vehicle body. The airbag 113 and the mounting base 112 form an inflation chamber 111; the inflation chamber 111 is connected to the inflation assembly 200 through an air intake interface 114; when the pressure in the inflation chamber 111 changes, the volume of the airbag 113 changes accordingly to adjust the position of the mating surfaces. The air intake interface 114 and the mounting base 112 can be connected by a threaded connection to ensure a tight fit and prevent air leakage.

[0049] The airbag 113 is made of rubber and is connected to the fixing seat 112 by rubber vulcanization. The airbag 113 utilizes rubber to ensure its resilience. The connection between the airbag 113 and the fixing seat 112 is achieved through a rubber vulcanization process, ensuring vulcanization adhesion and a tight seal between them. During rubber vulcanization, the rubber macromolecules in the airbag 113 react chemically with the crosslinking agent sulfur under heating, forming a three-dimensional network structure. This rubber vulcanization connection creates both chemical bonding and physical adsorption forces at the interface between the airbag 113 and the fixing seat 112. Specifically, the rubber vulcanization connection between the airbag 113 and the fixing seat 112 can be achieved through direct vulcanization bonding, adhesive vulcanization bonding, or lamination. Direct vulcanization bonding involves directly contacting raw rubber with the cleaned fixing seat 112 and vulcanizing it under heating and pressure to achieve adhesion. Adhesive vulcanization bonding involves applying a special adhesive to the surface of the fixing seat 112, allowing it to dry, and then vulcanizing it with the rubber. Lamination involves stacking layers of rubber and fixing seat 112 one by one, and then vulcanizing them together under high temperature and high pressure.

[0050] Furthermore, the air inlet component 114 may include an inflation interface body and a connector. The inflation interface body is connected to the inflation assembly 200 via the connector.

[0051] In an optional embodiment of this utility model, the vibration buffer 110 further includes: an airbag limiting member 115.

[0052] The airbag limiting member 115 is located inside the inflation cavity 111 and is used to limit the range of motion of the mating face moving towards the fixed seat 112.

[0053] An airbag limiting member 115 can be provided inside the inflation chamber 111 to limit the range of motion of the airbag 112. In addition, the interface between the fixed seat 112 and the airbag 113 can be located near the airbag limiting member 115 to ensure rigid support at the extreme position.

[0054] In an optional embodiment of this utility model, the vibration buffer 110 further includes: a first seal (not shown in the figure),

[0055] The first seal is located between the mounting base 112 and the rear of the vehicle 10.

[0056] In this embodiment of the utility model, a first sealing element can be provided between the fixing seat 112 and the rear of the vehicle 10. The first sealing element seals the connection gap between the fixing seat 112 and the rear of the vehicle 10, so as to prevent water leakage between the fixing seat 112 and the rear of the vehicle 10 and affect the performance of the rear of the vehicle 10.

[0057] In an optional embodiment of this utility model, the vibration buffer 110 further includes: a second seal (not shown in the figure).

[0058] The second seal is located between the inflation chamber 111 and the air inlet interface 114.

[0059] In this embodiment of the utility model, a second sealing element can be provided between the inflation chamber 111 and the air inlet interface 114. The second sealing element seals the connection gap between the inflation chamber 111 and the air inlet interface 114 to prevent air leakage between the inflation chamber 111 and the air inlet interface 114, which would affect the performance of the vibration damper 110.

[0060] In an optional embodiment of this utility model, the vehicle tailgate vibration buffer structure further includes:

[0061] A wear-resistant layer (not shown in the figure) covers the mating surface; the mating surface contacts the vehicle tailgate through the wear-resistant layer.

[0062] A wear-resistant layer can be applied to the mating surface, which contacts the vehicle's tailgate through the wear-resistant layer, to enhance the service life of the vibration damper 110. The wear-resistant layer can be formed by applying wear-resistant tape to the mating surface.

[0063] In an optional embodiment of this utility model, the inflation assembly 200 includes an air supply unit 210, a high-pressure air pipe 220, and an active control valve 230.

[0064] The active control valve 230 is located between the air supply unit 210 and the vibration buffer 110. The active control valve 230 is connected to the air supply unit 210 and the vibration buffer 110 through a high-pressure air pipe 220. The air supply unit 210 is used to provide high-pressure gas. The active control valve 230 is used to synchronously adjust the inflation pressure in the inflation chambers 111 of the two vibration buffers 110.

[0065] The inflation assembly 200 may include an air supply unit 210, a high-pressure air pipe 220, and an active control valve 230. The air supply unit 210 can be a substitute for the air supply unit 210 in the air suspension, thereby improving the practicality of this invention and reducing costs. The active control valve 230 is located between the air supply unit 210 and the vibration damper 110. The air supply unit 210 provides high-pressure gas, and the active control valve 230 can synchronously adjust the inflation pressure in the inflation chambers 111 of the two vibration dampers 110 as needed. The airbag 113 can have its inflation chamber 111 cross-section defined using the formula F = PS (F is the force, P is the inflation pressure, and S is the area), thus allowing the corresponding inflation pressure to be determined based on the required size.

[0066] In an optional embodiment of this utility model, the vibration buffer 110 is used to buffer the vibration of the vehicle tailgate in the YZ or YX direction.

[0067] In this embodiment of the present invention, the vibration buffer 110 provides vibration buffering for the vehicle tailgate in the YZ or YX direction, wherein the X direction is the front-to-back direction of the vehicle, the Y direction is the left-to-right direction of the vehicle, and the Z direction is the up-to-down direction of the vehicle.

[0068] In addition, you can refer to Figure 6 The vibration buffer 110 is also configured to buffer only the X direction.

[0069] This utility model embodiment allows the vehicle tailgate vibration buffer structure to be mounted on one side of the vehicle body side panel, simplifying the structure. Furthermore, inflation and pressure control can be integrated into the air suspension system, reducing costs. By inflating the airbag, the interference of the left and right vibration buffers can be adaptively adjusted, absorbing tailgate system dimensional variations. Synchronous and stable air pressure on both sides of the vibration buffers ensures consistent and controllable tailgate reaction force. Dynamic adjustment of air pressure based on different dynamic and static operating conditions of the vehicle can solve problems such as tailgate swaying and impact, high latch unlocking force, and high tailgate closing force. During vehicle assembly, there is no need to use methods like pressing paper to test the interference of the left and right buffer blocks, saving significant tailgate assembly and adjustment time and improving production efficiency. It improves the first-pass yield rate for tailgate noise during vehicle off-line testing, saving considerable time on noise rework and retesting. Furthermore, the inclusion of an airbag limiting component ensures that even without airbag inflation, the tailgate system will not experience a hard collision between the vehicle body and the tailgate. The vibration buffer itself can be used as a pure rubber buffer, guaranteeing the basic function of preventing noise. By utilizing gas as a buffer, the vibration damper can adaptively adjust air pressure and tailgate reaction force according to environmental changes under low-temperature conditions, resulting in better environmental adaptability. This solves the problem of reduced vibration isolation effect of rubber buffer blocks at low temperatures, which transmits more vehicle body vibrations and triggers tailgate resonance and booming. Furthermore, the damping force of the vibration damper's airbags is adjustable, and the air between the airbag rubbers isolates the transmission of vehicle body vibrations, thus providing an improved solution to the low-frequency pressure ear problem of the tailgate.

[0070] This utility model embodiment also discloses a vehicle, including the vehicle tailgate vibration buffer structure as described above.

[0071] The vehicle tailgate vibration damping structure is fixed to the rear of the vehicle to dampen the movement of the rear of the vehicle and the tailgate in multiple directions, thereby improving the vehicle's NVH performance.

[0072] For example, when a vehicle is driving dynamically on a bumpy road, the air-filled vibration damping structure of the tailgate cushions the relative movement between the rear of the vehicle and the tailgate, which can significantly reduce the vibration transmission rate from the vehicle body to the tailgate. Improving the vibration transmission from the vehicle body to the tailgate can prevent resonance of the inner tailgate panel and prevent low-frequency roaring, especially under low temperature conditions, thereby improving the NVH performance of the vehicle when driving dynamically on a bumpy road.

[0073] (2) When the vehicle is in a static state or when the tailgate needs to be opened, the pressure of the vehicle tailgate vibration buffer structure is actively reduced or released. At this time, the tailgate reaction force is reduced to the minimum, which improves the problem of loud unlocking sound when the tailgate is opened, and the problem of rebound caused by large tailgate closing force when the tailgate is closed.

[0074] Specifically, the vehicle tailgate vibration damping structure includes: at least one set of vibration damper groups and an inflation assembly.

[0075] The vibration damper group includes two vibration dampers symmetrically arranged on the rear of the vehicle. An inflation chamber is formed inside the vibration damper, and the inflation component is connected to the inflation chamber.

[0076] The inflation assembly is used to synchronously adjust the inflation pressure in the inflation chambers of the two vibration dampers in order to adjust the position of the mating surfaces of the vibration dampers.

[0077] The mating surface of the vibration damper is used to contact the vehicle tailgate to provide multi-directional vibration damping for the vehicle tailgate.

[0078] Optionally, the vibration damper includes: a fixed base, an airbag, and an air inlet connector.

[0079] The mounting base is fixed to the rear of the vehicle; the airbag is located on the side of the mounting base away from the rear of the vehicle, and the side of the airbag away from the mounting base is the mating surface; the airbag and the interior of the mounting base form an inflation chamber; the inflation chamber is connected to the inflation assembly through the air inlet interface; when the pressure in the inflation chamber changes, the volume of the airbag changes accordingly to adjust the position of the mating surface.

[0080] Optionally, the airbag is made of rubber, and the airbag is vulcanized to the fixing seat.

[0081] Optionally, the vibration damper further includes: an airbag limiting member.

[0082] The airbag limiting member is located inside the inflation cavity and is used to limit the range of motion of the mating face towards the fixed seat.

[0083] Optionally, the vibration damper further includes: a first seal,

[0084] The first seal is located between the mounting base and the rear of the vehicle.

[0085] Optionally, the vibration damper further includes: a second seal.

[0086] The second seal is located between the inflation chamber and the air inlet.

[0087] Optionally, the inflation assembly includes an air supply unit, a high-pressure air pipe, and an active control valve.

[0088] The active control valve is located between the air supply unit and the vibration buffer. The active control valve is connected to the air supply unit and the vibration buffer through a high-pressure air pipe. The air supply unit is used to provide high-pressure gas. The active control valve is used to synchronously adjust the inflation pressure in the inflation chambers of the two vibration buffers.

[0089] Optionally, it also includes:

[0090] A wear-resistant layer is applied to the mating surface; the mating surface contacts the vehicle tailgate through the wear-resistant layer.

[0091] Optionally, the vibration damper is used to dampen vibrations in the YZ or YX directions of the vehicle tailgate.

[0092] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0093] The above provides a detailed description of a vehicle tailgate vibration buffer structure and a vehicle provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

[0094] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A vibration damping structure for a vehicle tailgate, characterized in that, include: At least one set of vibration damper assembly and inflation assembly, The vibration damper group includes two vibration dampers symmetrically arranged on the rear of the vehicle. An inflation chamber is formed inside the vibration damper, and the inflation component is connected to the inflation chamber. The inflation assembly is used to synchronously adjust the inflation pressure in the inflation chambers of the two vibration dampers in order to adjust the position of the mating surfaces of the vibration dampers. The mating surface of the vibration damper is used to contact the vehicle tailgate to provide multi-directional vibration damping for the vehicle tailgate.

2. The vehicle tailgate vibration buffer structure according to claim 1, characterized in that, The vibration damper includes: a fixed base, an airbag, and an air inlet connector. The mounting base is fixed to the rear of the vehicle; the airbag is located on the side of the mounting base away from the rear of the vehicle, and the side of the airbag away from the mounting base is the mating surface; the airbag and the interior of the mounting base form an inflation chamber; the inflation chamber is connected to the inflation assembly through the air inlet interface; when the pressure in the inflation chamber changes, the volume of the airbag changes accordingly to adjust the position of the mating surface.

3. The vehicle tailgate vibration buffer structure according to claim 2, characterized in that, The airbag is made of rubber and is connected to the fixed base by rubber vulcanization.

4. The vehicle tailgate vibration buffer structure according to claim 2 or 3, characterized in that, The vibration damper also includes an airbag limiting component. The airbag limiting member is located inside the inflation cavity and is used to limit the range of motion of the mating face towards the fixed seat.

5. The vehicle tailgate vibration buffer structure according to claim 2 or 3, characterized in that, The vibration damper further includes: a first seal, The first seal is located between the mounting base and the rear of the vehicle.

6. The vehicle tailgate vibration buffer structure according to claim 2 or 3, characterized in that, The vibration damper also includes: a second seal. The second seal is located between the inflation chamber and the air inlet.

7. The vehicle tailgate vibration buffer structure according to claim 1, characterized in that, The inflation assembly includes an air supply unit, a high-pressure air pipe, and an active control valve. The active control valve is located between the air supply unit and the vibration buffer. The active control valve is connected to the air supply unit and the vibration buffer through a high-pressure air pipe. The air supply unit is used to provide high-pressure gas. The active control valve is used to synchronously adjust the inflation pressure in the inflation chambers of the two vibration buffers.

8. The vehicle tailgate vibration buffer structure according to claim 1, characterized in that, Also includes: A wear-resistant layer is applied to the mating surfaces. The mating surface contacts the vehicle tailgate through the wear-resistant layer.

9. The vehicle tailgate vibration buffer structure according to claim 1, characterized in that, The vibration damper is used to dampen vibrations in the YZ or YX directions of the vehicle's tailgate.

10. A vehicle, characterized in that, Including the vehicle tailgate vibration buffer structure as described in any one of claims 1-9.

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