Vehicle back door buffer structure and vehicle

Abstract

The application relates to the technical field of vehicle back doors, and provides a vehicle back door buffering structure and a vehicle. The vehicle back door buffering structure comprises a vehicle body back panel, a rear bumper, a back door, a buffering piece, a vehicle body support and a wear-resistant sheet; the buffering piece is arranged on the back door; the rear bumper is provided with an abutting area for abutting against the buffering piece, and the wear-resistant sheet is arranged on the surface of the abutting area; the vehicle body support is connected with the vehicle body back panel and is supported on the side of the rear bumper away from the wear-resistant sheet, and the supporting position of the vehicle body support is opposite to the abutting area. The rear bumper, the vehicle body support and the vehicle body back panel are matched with each other, effective dispersion and transmission of the impact force of the buffering piece are realized, the paint surface of the rear bumper is protected, the structural stability of the rear bumper is enhanced, and the traditional sunken bolt is replaced by a supporting structure, so that the problem of paint layer abrasion of the bolt is completely solved.

Description

Technical Field

[0001] This application relates to the field of vehicle tailgate technology, and more particularly to a vehicle tailgate buffer structure and a vehicle. Background Technology

[0002] In existing vehicle structures, to prevent paint damage caused by collision or friction between the tailgate and the rear bumper when the tailgate closes, a buffer is typically installed on the inside of the tailgate. This buffer comes into contact with the rear bumper when the tailgate is closed. To distribute the impact force on the rear bumper and improve its structural stability, a recessed platform structure is usually installed on the rear bumper at a position corresponding to the buffer. This platform structure is positioned close to the rear body panel, with mounting holes at corresponding locations, and bolts are used to secure the platform structure and the rear body panel. When the tailgate closes, the buffer and the recessed platform structure abut against each other, allowing the rear body panel to share the impact force.

[0003] However, when the tailgate is closed, the buffer will come into contact with the head of the mounting bolt that protrudes from the surface of the platform. After repeated impacts with the mounting bolt, the buffer is prone to wear and even peeling of the paint layer on the bolt surface, exposing its metal substrate to the external environment, thereby accelerating corrosion and affecting the reliability of the connection and service life. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a vehicle tailgate buffer structure and a vehicle.

[0005] The first aspect of this application provides a vehicle tailgate buffer structure, including a rear panel, a rear bumper, a tailgate, a buffer component, a vehicle frame, and a wear-resistant sheet; The buffer is located on the rear door; The rear bumper has an abutment area for the buffer to abut against, and the wear-resistant sheet is disposed on the surface of the abutment area; The body bracket is connected to the rear panel of the vehicle body and is supported on the side of the rear bumper facing away from the wear-resistant sheet, and the support position of the body bracket is opposite to the abutment area.

[0006] The vehicle tailgate buffer structure provided in this application, by setting wear-resistant pads on the surface of the contact area corresponding to the buffer on the rear bumper, and fixing a body bracket to the rear panel of the vehicle body, ensures that when the tailgate is closed, the end face of the buffer abuts against the wear-resistant pads, preventing the buffer from abrading the paint surface of the rear bumper. The body bracket supports the rear bumper at the position opposite to the contact area, effectively dispersing the impact force of the buffer to the rear panel of the vehicle body, achieving multi-level transmission and dispersion of impact force, improving the impact resistance and structural stability of the rear bumper, and preventing its local deformation. The rear bumper, body bracket, and rear panel work together to effectively disperse and transmit the impact force of the buffer, not only protecting the paint surface of the rear bumper and enhancing its structural stability, but also completely solving the problem of bolt paint wear by replacing the traditional countersunk bolts with a support structure.

[0007] In some embodiments of this application, the rear bumper includes an abutment plate opposite to the tailgate. The abutment plate has a flat plate structure, and the abutment area is formed on the abutment plate.

[0008] Based on the above embodiments, the surface of the abutment plate is flat, without any protrusions or recesses, thus improving the aesthetics of the rear bumper. Furthermore, the wear-resistant pad can completely adhere to the abutment plate, ensuring the stability of the connection between the wear-resistant pad and the abutment plate. The flat surface of the abutment plate increases the contact area between the vehicle frame and the abutment plate, reducing the pressure at the contact point when impact force is transmitted to the vehicle frame, and preventing deformation of the abutment plate.

[0009] In some embodiments of this application, the rear bumper further includes a first plate and a second plate, the first plate being connected to the top side of the abutment plate and the second plate being connected to the bottom side of the abutment plate; The connection between the abutment plate and the first plate, and the connection between the abutment plate and the second plate, are smoothly transitioned.

[0010] Based on the above embodiments, the structural design of the abutment plate smoothly transitioning to the first plate and the second plate avoids the abutment plate from breaking or deforming due to edge stress concentration when subjected to impact force, and makes the appearance of the rear bumper smoother and more compatible with the rear profile of the vehicle, further enhancing the aesthetics of the vehicle.

[0011] In some embodiments of this application, the vehicle body bracket includes a base portion and a frame portion; Both the base portion and the frame portion are fixed to the rear panel of the vehicle body, and the frame portion is fixedly connected to the base portion. The frame portion and the base portion together form a cavity structure, and the frame portion abuts against the rear bumper.

[0012] Based on the above embodiments, the frame and base form a hollow structure, which not only gives the vehicle body bracket high structural strength and stability, but also prevents the vehicle body bracket from becoming too heavy and increasing the vehicle's load. Furthermore, the frame and base can be disassembled and assembled; if a component is damaged, it is not necessary to replace the entire vehicle body bracket, but only the damaged component needs to be replaced, reducing maintenance costs.

[0013] In some embodiments of this application, the frame includes a connecting plate, a support plate, a mounting plate, and two side plates; The support plate and the mounting plate are respectively connected to the two opposite edges of the connecting plate and bend and extend in a direction away from each other; The two side plates are respectively connected to the other two opposite edges of the connecting plate, and bend and extend relative to the connecting plate toward the base portion, and the two side plates are connected to the base portion; An overlapping edge is formed on the side panel, the overlapping edge abuts against the side of the support plate near the side panel, the support plate abuts against the rear bumper to support the rear bumper, and the mounting plate is fixedly connected to the rear panel of the vehicle body.

[0014] Based on the above embodiments, multiple plates of the frame are interconnected to form a three-dimensional support system, which enables the multiple plates to support each other, improves the overall rigidity and deformation resistance of the frame, and enables the frame to stably transmit the impact force on the rear bumper; the connection between the overlapping edge and the support plate further enhances the stability of the frame and prevents the support plate from bending under stress.

[0015] In some embodiments of this application, the base portion includes a horizontal plate and a vertical plate; The longitudinal plate is connected to the rear panel of the vehicle body, and the transverse plate extends away from the rear panel of the vehicle body relative to the longitudinal plate. The transverse plate is fixedly connected to the edges of the two side plates away from the connecting plate. The transverse plate, the two side plates and the support plate together form the cavity structure.

[0016] Based on the above embodiments, the base portion formed by connecting the horizontal and vertical plates has a simple structure, is easy to install, and can effectively transmit the impact force from the frame portion, making it suitable for mass production.

[0017] In some embodiments of this application, a buffer sheet is also included, which is disposed between the vehicle body bracket and the rear bumper, so that the vehicle body bracket abuts against the rear bumper through the buffer sheet.

[0018] Based on the above embodiments, the buffer plate isolates the vehicle body bracket from direct contact with the rear bumper, preventing wear caused by rigid friction and extending their service life. Furthermore, the buffer plate acts as a cushion between the vehicle body bracket and the rear bumper, preventing vehicle vibrations from causing collisions and resulting in abnormal noises. Simultaneously, the buffer plate can compensate for installation errors between the vehicle body bracket and the rear bumper, ensuring a tight fit and improving support stability.

[0019] In some embodiments of this application, the buffer includes a mounting base, an adjusting rod, and a resilient buffer cover; The mounting base is installed on the side of the tailgate facing the rear bumper; The adjusting rod is movably connected to the mounting base and can move relative to the mounting base along the axial direction of the mounting base; The elastic buffer cover is connected to the adjusting rod, and the adjusting rod drives the elastic buffer cover to move relative to the mounting base to adjust the distance between the elastic buffer cover and the mounting base; The end face of the elastic buffer cover is used to abut against the wear-resistant sheet.

[0020] Based on the above embodiments, by rotating the adjusting rod to adjust the distance between the mounting base and the elastic buffer cover, the overall length of the buffer component is adjusted, thereby adjusting the degree of deformation of the elastic buffer cover when the buffer component comes into contact with the wear-resistant sheet. This allows the buffer component to adapt to installation errors of different vehicle models or different batches of the same vehicle model, ensuring consistent buffering effect and improving the versatility of the structure.

[0021] In some embodiments of this application, the buffer further includes a sealing ring, which is sleeved on the mounting base and sealed to the outer wall of the mounting base; The rear door is provided with a mounting hole, the mounting base is inserted into the mounting hole, and the sealing ring is sealed to the rear door to close the gap between the mounting base and the inner wall of the mounting hole.

[0022] Based on the above embodiments, the sealing ring achieves a seal between the mounting base and the tailgate mounting hole, effectively preventing water, dust and other impurities from entering the tailgate interior, protecting the wires, interior trim and other components inside the tailgate from corrosion and contamination, and extending the tailgate's service life.

[0023] A second aspect of this application provides a vehicle including a vehicle tailgate buffer structure as described in any of the preceding claims.

[0024] The vehicle provided in this application embodiment uses the above-mentioned vehicle tailgate buffer structure. Through the cooperation of the body frame, the rear body panel and the rear bumper, the body frame supports the rear bumper. When the tailgate is closed, the buffer component abuts against the wear-resistant plate on the rear bumper. There is no need to install mounting bolts on the rear bumper, which avoids the problem of repeated impacts of the buffer component causing wear of the bolt paint layer and exposure of the metal substrate. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is one of the cross-sectional views of the vehicle tailgate buffer structure described in the embodiments of this application; Figure 2 This is a second cross-sectional view of the vehicle tailgate buffer structure described in the embodiments of this application; Figure 3 for Figure 2 A magnified view of a portion of the image; Figure 4 This is a schematic diagram of the rear bumper structure described in an embodiment of this application; Figure 5 This is one of the structural schematic diagrams of the vehicle body bracket described in the embodiments of this application; Figure 6 This is a second schematic diagram of the structure of the vehicle body bracket described in the embodiments of this application; Figure 7 This is a schematic diagram of the structure of the buffer described in the embodiments of this application; Figure 8 This is an exploded view of the buffer component described in the embodiments of this application.

[0028] The components include: 1. Rear body panel; 2. Rear bumper; 21. Abutment plate; 22. First panel; 23. Second panel; 3. Rear tailgate; 4. Buffer component; 41. Mounting base; 42. Adjusting rod; 43. Elastic buffer cover; 44. Sealing ring; 5. Body bracket; 51. Base section; 511. Horizontal plate; 512. Vertical plate; 521. Connecting plate; 522. Support plate; 523. Mounting plate; 524. Side plate; 525. Sub-plate; 53. Rib plate; 52. Frame section; 6. Wear-resistant plate; 7. Buffer plate. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0031] In existing vehicle structures, a rear bumper is installed on the rear panel of the vehicle body. The top edge of the bumper connects to the rear panel, and the center of the bumper protrudes, creating a gap between the center of the bumper and the rear panel. The top edge of the tailgate is rotatably connected to the vehicle frame. When the tailgate is closed, the bottom of the tailgate is prone to colliding with the bumper, potentially damaging the paint on the bumper. Therefore, a buffer is usually installed on the inside of the tailgate. When the tailgate is closed, the buffer rests against the bumper, preventing the tailgate from directly colliding with the bumper and damaging the paint.

[0032] When the tailgate is closed, the buffer will still impact the bumper, causing it to vibrate. To prevent the bumper from loosening over time, a recessed platform structure is typically installed on the rear bumper at a position corresponding to the buffer. This platform structure is positioned close to the rear panel of the vehicle, with mounting holes at corresponding locations. The platform structure and the rear panel are then secured with bolts. When the tailgate is closed, the buffer abuts against the recessed platform, allowing the rear panel to share the impact force.

[0033] However, when the tailgate is closed, the buffer will abut or collide with the head of the protruding mounting bolt on the platform. With prolonged use of the tailgate, the repeated impact of the buffer on the mounting bolt will damage the paint layer on the surface of the mounting bolt, exposing its metal substrate to the external environment, accelerating the corrosion of the mounting bolt and affecting the reliability of the connection.

[0034] To solve the above problems, refer to Figures 1 to 8 As shown, this application embodiment provides a vehicle tailgate buffer structure, including a rear panel 1, a rear bumper 2, a tailgate 3, a buffer 4, a body bracket 5, and a wear-resistant sheet 6; the buffer 4 is disposed on the tailgate 3; the rear bumper 2 has an abutment area for the buffer 4 to abut, and the wear-resistant sheet 6 is disposed on the surface of the abutment area; the body bracket 5 is connected to the rear panel 1 and supported on the side of the rear bumper 2 facing away from the wear-resistant sheet 6, and the support position of the body bracket 5 is opposite to the abutment area.

[0035] By installing wear-resistant pads 6 on the abutment area of ​​the rear bumper 2 corresponding to the buffer 4, and fixing the body bracket 5 to the rear panel 1, the end face of the buffer 4 abuts against the wear-resistant pads 6 when the tailgate 3 is closed, preventing the wear-resistant pads 6 from abrading the paint of the rear bumper 2. The body bracket 5 supports the rear bumper 2 at the position opposite to the abutment area, effectively dispersing the impact force of the buffer 4 to the rear panel 1, achieving multi-level transmission and dispersion of the impact force, improving the impact resistance and structural stability of the rear bumper 2, and preventing its local deformation. The rear bumper 2, body bracket 5, and rear panel 1 work together to effectively disperse and transmit the impact force of the buffer 4, not only protecting the paint of the rear bumper 2 and enhancing its structural stability, but also completely solving the problem of bolt paint wear by replacing the traditional countersunk bolts with a support structure.

[0036] The rear body panel 1, serving as the basic load-bearing component at the rear of the vehicle, is a plate-like structure perpendicular to the vehicle's direction of travel. The rear body panel 1 is fixedly connected to the vehicle frame. The vehicle support bracket 5 can be either bolted to the rear body panel 1 or welded to it.

[0037] The rear bumper 2 is generally curved to fit the contour curve of the rear of the vehicle. The middle and bottom of the rear bumper 2 curve away from the rear body panel 1 to create space between the rear bumper 2 and the rear body panel 1 to accommodate the body support 5. The edge of the rear bumper 2 can be fixedly connected to the rear body panel 1 or to the vehicle frame to mount the rear bumper 2 at the rear of the vehicle. The side of the rear bumper 2 facing away from the rear body panel 1 is the abutting outer side; when the tailgate 3 is closed, the area of ​​the outer side opposite the buffer piece 4 is the abutting area.

[0038] The tailgate 3 is rotatably connected to the vehicle frame. When the tailgate 3 is closed, its bottom is at the rear bumper 2. The buffer 4 is installed on the side of the tailgate 3 facing the rear bumper 2 and is located at the bottom of the tailgate 3, so that when the tailgate 3 is closed, the buffer 4 can abut against the wear-resistant plate 6 of the abutment area of ​​the rear bumper 2.

[0039] The buffer 4 can be made of an elastic material or have a structure capable of elastic deformation, so that when it comes into contact with the wear-resistant plate 6, it deforms itself to reduce the impact on the rear bumper 2. A mounting hole can be provided on the tailgate 3, into which the buffer 4 is inserted, with one end of the buffer 4 protruding from the inside of the tailgate 3. Alternatively, the buffer 4 can be mounted on the tailgate 3 using bolts.

[0040] The wear-resistant sheet 6 can be made of plastic or rubber and is bonded to the contact area. The area of ​​the wear-resistant sheet 6 can be greater than or equal to the area of ​​the end face of the buffer 4 so that when the rear door 3 is closed, the end face of the buffer 4 is inside the wear-resistant sheet 6 and does not contact the surface of the rear bumper 2.

[0041] Reference Figures 1 to 4 As shown, in some embodiments, the rear bumper 2 includes an abutment plate 21, which is opposite to the rear tailgate 3. The abutment plate 21 has a flat plate structure and an abutment area is formed on the abutment plate 21.

[0042] Specifically, the rear bumper 2 includes multiple base plates extending along the width of the vehicle, and the multiple base plates are connected sequentially along the height direction; the abutment plate 21 is one of the multiple base plates that corresponds to the bottom of the tailgate 3 in the closed state.

[0043] Traditional rear bumpers 2 have recessed structures and mounting bolts, which detract from their overall aesthetics. The abutment plate 21, on the other hand, is a flat structure, meaning both the side facing the tailgate 3 and the side facing the rear panel 1 are flat. The abutment plate 21 lacks any protrusions or recesses, enhancing the rear bumper 2's appearance. Furthermore, the flat structure of the abutment plate 21 allows the wear-resistant sheet 6 to fit perfectly against it, ensuring a stable connection between the two.

[0044] The end of the vehicle body bracket 5 away from the rear panel 1 has an abutment surface. The abutment surface abuts against the side of the abutment plate 21 facing the rear panel 1. The flat surface of the abutment plate 21 increases the contact area between the vehicle body bracket 5 and the abutment plate 21. When the impact force is transmitted to the vehicle body bracket 5, it reduces the pressure at the contact point between the abutment plate 21 and the vehicle body bracket 5, and prevents the abutment plate 21 from deforming.

[0045] In some embodiments, the rear bumper 2 further includes a first plate 22 and a second plate 23, the first plate 22 being connected to the top side of the abutment plate 21 and the second plate 23 being connected to the bottom side of the abutment plate 21; the connection between the abutment plate 21 and the first plate 22, and the connection between the abutment plate 21 and the second plate 23, are all smoothly transitioned.

[0046] Specifically, the abutment plate 21, the first plate 22, and the second plate 23 are integrally injection molded; the first plate 22 is connected to the top side of the abutment plate 21 and has an arc-shaped plate structure. Its dimensions along the vehicle width direction are the same as the length of the abutment plate 21, and it matches the upper contour curve of the rear of the vehicle; the second plate 23 is connected to the bottom side of the abutment plate 21 and also has an arc-shaped plate structure. Its dimensions along the vehicle width direction are the same as the abutment plate 21, and it matches the lower contour curve of the rear of the vehicle.

[0047] The top edge of the abutment plate 21 and the bottom edge of the first plate 22 are connected by an arc-shaped plate transition, and the wall thickness of the transition area between the abutment plate 21 and the first plate 22 is uniform. The bottom edge of the abutment plate 21 and the top edge of the second plate 23 are also connected by an arc-shaped plate transition, and the wall thickness of the transition area between the abutment plate 21 and the second plate 23 is uniform.

[0048] The abutment plate 21, the first plate 22, and the second plate 23 together form the rear bumper 2. The structural design of the abutment plate 21 smoothly transitioning with the first plate 22 and the second plate 23 avoids the abutment plate 21 from breaking or deforming due to edge stress concentration when subjected to impact force, and makes the appearance of the rear bumper 2 smoother, with better compatibility with the rear contour of the vehicle, further enhancing the aesthetics of the vehicle.

[0049] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, in some embodiments, the vehicle body support 5 includes a base portion 51 and a frame portion 52; both the base portion 51 and the frame portion 52 are fixed to the rear panel 1 of the vehicle body, and the frame portion 52 is fixedly connected to the base portion 51. The frame portion 52 and the base portion 51 together form a cavity structure, and the frame portion 52 abuts against the rear bumper 2.

[0050] This design creates a cavity structure between the frame portion 52 and the base portion 51, which provides the vehicle body support 5 with high structural strength and stability while preventing it from becoming too heavy and increasing the vehicle's load. Furthermore, the frame portion 52 and the base portion 51 can be disassembled and assembled; if any component is damaged, it is not necessary to replace the entire vehicle body support 5, but only the damaged component needs to be replaced, reducing maintenance costs.

[0051] Specifically, one side edge of the base portion 51 is fixedly connected to the rear panel 1 of the vehicle body, so that the base portion 51 serves as a structural component supporting the frame portion 52 on the rear panel 1 of the vehicle body; one side of the base portion 51 can be formed into a vertically arranged plate, with multiple through holes opened on the plate, and bolts passing through the through holes to be fixedly connected to the rear panel 1 of the vehicle body; of course, one side edge of the base portion 51 can also be welded to the rear panel 1 of the vehicle body.

[0052] The frame portion 52 can be either a one-piece structural component or a structural component formed by welding multiple plates. The interior of the frame portion 52 is hollow, forming a "door"-shaped frame structure. After the frame portion 52 is connected to the base portion 51, the hollow frame structure and the base portion 51 can form a cavity structure. Alternatively, the frame portion 52 can be located on the top side of the base portion 51, with the bottom end of the frame portion 52 fixedly connected to the base portion 51 and the top end of the frame portion 52 fixedly connected to the rear panel 1 of the vehicle body. Of course, the frame portion 52 can also be located on the bottom side of the base portion 51, with the top end of the frame portion 52 fixedly connected to the base portion 51, as long as the frame portion 52 can extend along the rear panel 1 towards the rear bumper 2, so that the frame portion 52 can abut against the rear bumper 2.

[0053] In some embodiments, the frame portion 52 includes a connecting plate 521, a support plate 522, a mounting plate 523, and two side plates 524; the support plate 522 and the mounting plate 523 are respectively connected to two opposite edges of the connecting plate 521 and bend and extend in a direction away from each other; the two side plates 524 are respectively connected to the other two opposite edges of the connecting plate 521 and bend and extend relative to the connecting plate 521 toward the base portion 51, and the two side plates 524 are connected to the base portion 51; an overlapping edge is formed on the side plate 524, the overlapping edge abuts against the side of the support plate 522 near the side plate 524, the support plate 522 abuts against the rear bumper to support the rear bumper, and the mounting plate 523 is fixedly connected to the rear panel 1 of the vehicle body.

[0054] Specifically, the two side plates 524 are arranged opposite to each other, the connecting plate 521 is connected to the top side of the two side plates 524, and the bottom side of the two side plates 524 is fixedly connected to the base portion 51. This allows the two side plates 524 to support the connecting plate 521, the support plate 522, and the mounting plate 523 on the base portion 51.

[0055] The frame portion 52 is located on the top side of the base portion 51. The mounting plate 523 is inclined upward relative to the connecting plate 521, so that the mounting plate 523 can fit against the rear panel 1 of the vehicle body. The mounting plate 523 has through holes, through which bolts are passed to connect with the rear panel 1 of the vehicle body, thereby fixing the mounting plate 523 to the rear panel 1 of the vehicle body. The support plate 522 is inclined relative to the connecting plate 521, so that the support plate 522 can fit against the side of the rear bumper 2 facing the rear panel 1 of the vehicle body, so that the support plate 522 provides support for the rear bumper 2.

[0056] The two side plates 524, the connecting plate 521, and the base portion 51 together form a hollow frame structure, and the space enclosed by the two side plates 524, the connecting plate 521, and the base portion 51 forms a cavity structure. The side plates 524 extend towards the support plate 522 from the side closest to the support plate 522 to form an overlapping edge. The overlapping edge abuts against the side of the support plate 522 away from the rear bumper 2, so that the two side plates 524 support the support plate 522, improve the structural stability of the support plate 522, and allow the impact force transmitted to the support plate 522 to be transmitted to the side plates 524 through the overlapping edge.

[0057] Sub-plates 525 may be formed on the overlapping edges of the two side plates 524. The two sub-plates 525 extend toward each other and each sub-plate 525 abuts against the support plate 522 so that the two sub-plates 525 support the support plate 522.

[0058] The multiple plates of the frame section 52 are interconnected to form a three-dimensional support system, which enables the multiple plates to support each other, improves the overall rigidity and deformation resistance of the frame section 52, and enables the frame section 52 to stably transmit the impact force on the rear bumper 2; the connection between the overlapping edge and the support plate 522 further enhances the stability of the frame section 52 and prevents the support plate 522 from bending under stress.

[0059] In some embodiments, the base portion 51 includes a horizontal plate 511 and a vertical plate 512; the vertical plate 512 is connected to the rear bulkhead 1 of the vehicle body, the horizontal plate 511 extends away from the rear bulkhead 1 of the vehicle body relative to the vertical plate 512, the horizontal plate 511 is fixedly connected to the edges of the two side plates 524 away from the connecting plate 521, and the horizontal plate 511, the two side plates 524 and the support plate 522 together form a cavity structure.

[0060] Specifically, the longitudinal plate 512 can be welded to the transverse plate 511, or the plate can be bent into an L-shape so that the two perpendicular parts of the bent plate are the longitudinal plate 512 and the transverse plate 511.

[0061] The longitudinal plate 512 is fixedly connected to the rear panel 1 of the vehicle body by bolts, so that the transverse plate 511 extends towards the rear bumper 2 in a horizontal direction away from the rear panel 1, so that the transverse plate 511 can serve as a platform structure for mounting the frame part 52.

[0062] When the support plate 522 is subjected to impact, the impact force is transmitted to the horizontal plate 511 through the two side plates 524. The force on the horizontal plate 511 is transmitted to the rear panel 1 of the vehicle body through the longitudinal plate 512. The base part 51 formed by the connection of the horizontal plate 511 and the longitudinal plate 512 has a simple structure, is easy to install, and can effectively transmit the impact force from the frame part 52, making it suitable for mass production.

[0063] The base portion 51 may also include a rib 53, which is disposed between the horizontal plate 511 and the vertical plate 512. The bottom edge of the rib 53 is fixedly connected to the horizontal plate 511, and the horizontal edge of the rib 53 is connected to the vertical plate 512, so that the rib 53 can support the horizontal plate 511 and the vertical plate 512, thereby improving the structural stability of the base portion 51.

[0064] Reference Figure 2 and Figure 3 As shown, in some embodiments, the vehicle tailgate buffer structure further includes a buffer plate 7, which is disposed between the vehicle body support 5 and the rear bumper 2, so that the vehicle body support 5 abuts against the rear bumper 2 through the buffer plate 7.

[0065] Specifically, the buffer sheet 7 can be made of non-woven fabric, plastic, or rubber. The buffer sheet 7 can be bonded to the position where the body bracket 5 abuts against the rear bumper 2, so that when the body bracket 5 and the rear bumper 2 abut, the buffer sheet 7 is positioned between the body bracket 5 and the rear bumper 2. When the body bracket 5 includes a base portion 51 and a frame portion 52, the buffer sheet 7 can be bonded to the side of the support plate 522 facing the rear bumper 2, so that the support plate 522 can abut against the rear bumper 2 via the buffer sheet 7.

[0066] The buffer plate 7 isolates the body bracket 5 from direct contact with the rear bumper 2, preventing wear caused by rigid friction and extending their service life. Furthermore, the buffer plate 7 acts as a buffer between the body bracket 5 and the rear bumper 2, preventing collisions caused by vehicle vibrations that could produce abnormal noises. Simultaneously, the buffer plate 7 compensates for installation errors between the body bracket 5 and the rear bumper 2, ensuring a tight fit and improving support stability.

[0067] Reference Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, in some embodiments, the buffer 4 includes a mounting base 41, an adjusting rod 42, and an elastic buffer cover 43; the mounting base 41 is mounted on the side of the rear tailgate 3 facing the rear bumper 2; the adjusting rod 42 is movably connected to the mounting base 41 and can move relative to the mounting base 41 along the axial direction of the mounting base 41; the elastic buffer cover 43 is connected to the adjusting rod 42, and the adjusting rod 42 drives the elastic buffer cover 43 to move relative to the mounting base 41 to adjust the distance between the elastic buffer cover 43 and the mounting base 41; the end face of the elastic buffer cover 43 is used to abut against the wear-resistant sheet 6.

[0068] Specifically, the mounting base 41 can be a cylindrical structure with an adjustment channel on its inner wall and threads on the inner wall of the adjustment channel. The adjustment rod 42 is at least partially threaded and is threaded into the adjustment channel. An elastic buffer cover 43 is fixedly connected to the adjustment rod 42, allowing the elastic buffer cover 43, adjustment rod 42, and mounting base 41 to be arranged sequentially along the axial direction. Rotating the elastic buffer cover 43 will rotate the adjustment rod 42, causing it to move relative to the mounting base 41 via the threads, thereby adjusting the distance between the elastic buffer cover 43 and the mounting base 41.

[0069] Different tailgate sizes 3 and vehicle frame sizes have different fitting clearances. When the tailgate 3 is closed and the clearance between the tailgate 3 and the rear bumper 2 is large, rotating the adjusting rod 42 increases the distance between the elastic buffer cover 43 and the mounting base 41. Thus, when the tailgate 3 is closed, the end face of the elastic buffer cover 43 abuts against the rear bumper 2, and the elastic buffer cover 43 is in an elastic deformation state.

[0070] When the tailgate 3 is closed and the gap between the tailgate 3 and the rear bumper 2 is small, rotate the adjusting rod 42 to reduce the distance between the elastic buffer cover 43 and the mounting base 41 so that the buffer 4 can be placed between the tailgate 3 and the rear bumper 2.

[0071] The elastic buffer cover 43 can be a cylindrical structure made of rubber or a soft rubber structure. One end of the adjusting rod 42 is exposed on the outside of the mounting base 41, and the elastic buffer cover 43 is fixed to the end of the adjusting rod 42 on the outside of the mounting base 41. The elastic buffer cover 43 can optionally be provided with a slot, and the end of the adjusting rod 42 engages with the slot to allow the elastic buffer cover 43 to be installed on the adjusting rod 42. The elastic deformation of the elastic buffer cover 43 can effectively absorb impact force, reduce the impact force when the tailgate 3 closes, reduce noise, and protect the rear bumper 2 and the tailgate 3.

[0072] By rotating the adjusting rod 42 to adjust the distance between the mounting base 41 and the elastic buffer cover 43, the overall length of the buffer component 4 can be adjusted, thereby adjusting the degree of deformation of the elastic buffer cover 43 when the buffer component 4 comes into contact with the wear-resistant plate 6. This allows the buffer component 4 to adapt to installation errors of different vehicle models or different batches of the same vehicle model, ensuring consistent buffering effect and improving the versatility of the structure.

[0073] In some embodiments, the buffer 4 further includes a sealing ring 44, which is sleeved on the mounting base 41 and is sealed to the outer wall of the mounting base 41; the rear door 3 is provided with a mounting hole, the mounting base 41 is inserted into the mounting hole, and the sealing ring 44 is sealed to the rear door 3 to close the gap between the mounting base 41 and the inner wall of the mounting hole.

[0074] Specifically, the diameter of the mounting hole is compatible with the diameter of the mounting base 41. The mounting base 41 can be equipped with a buckle. After the mounting base 41 is inserted into the mounting hole, the buckle on the mounting base 41 engages with the edge of the mounting hole so that the mounting base 41 is installed on the rear door 3.

[0075] The sealing ring 44 can be a rubber ring or a soft rubber ring. After the sealing ring 44 is fitted onto the mounting base 41, the inner wall of the sealing ring 44 fits tightly against the mounting base 41.

[0076] When the mounting base 41 is inserted into the mounting hole, the sealing ring 44 can be placed on the inner wall of the mounting hole, so that the outer wall of the sealing ring 44 seals against the inner wall of the mounting hole, thereby sealing the gap between the mounting base 41 and the inner wall of the mounting hole.

[0077] When the mounting base 41 is inserted into the mounting hole, the sealing ring 44 can also be placed on the side of the tailgate 3 facing the rear bumper 2. The sealing ring 44 fits onto the tailgate 3 and covers the mounting hole so that the sealing ring 44 seals the gap between the mounting base 41 and the inner wall of the mounting hole.

[0078] The sealing ring 44 achieves a seal between the mounting base 41 and the mounting hole of the tailgate 3, effectively preventing water, dust and other impurities from entering the interior of the tailgate 3, protecting the wires, interior parts and other components inside the tailgate 3 from corrosion and contamination, and extending the service life of the tailgate 3.

[0079] This application also provides a vehicle including the vehicle tailgate buffer structure as described in any of the above embodiments.

[0080] By using the aforementioned vehicle tailgate buffer structure in the vehicle, the body support 5 supports the rear bumper 2 through the cooperation of the body bracket 5, the rear body panel 1, and the rear bumper 2. When the tailgate 3 is closed, the buffer 4 abuts against the wear-resistant plate 6 on the rear bumper 2. There is no need to install mounting bolts on the rear bumper 2, which avoids the problem of repeated impacts of the buffer 4 causing wear of the bolt paint layer and exposure of the metal substrate.

[0081] In the vehicle tailgate buffer structure provided in this application embodiment and in specific vehicle use, the longitudinal plate 512 and the mounting plate 523 are fixedly connected to the rear panel 1 of the vehicle body, and the two side plates 524 are fixedly connected to the transverse plate 511; the buffer sheet 7 is glued to the support plate 522, and the support plate 522 abuts against the abutment plate 21. The adjusting rod 42 is rotated to adjust the distance between the mounting base 41 and the elastic buffer cover 43 so that when the tailgate 3 is closed, the elastic buffer cover 43 abuts against the wear-resistant sheet 6, and the elastic buffer cover 43 is in an elastically deformed state.

[0082] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 apparatus 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 apparatus. 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 apparatus that includes said element.

[0083] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle tailgate buffer structure, characterized in that, Includes the rear panel (1), rear bumper (2), tailgate (3), buffer (4), body frame (5), and wear-resistant pad (6); The buffer (4) is provided on the rear door (3); The rear bumper (2) has an abutment area for the buffer (4) to abut, and the wear-resistant sheet (6) is provided on the surface of the abutment area; The body bracket (5) is connected to the rear body panel (1) and supported on the side of the rear bumper (2) facing away from the wear-resistant sheet (6), and the support position of the body bracket (5) is opposite to the contact area.

2. The vehicle tailgate buffer structure according to claim 1, characterized in that, The rear bumper (2) includes an abutment plate (21), which is opposite to the rear door (3). The abutment plate (21) is a flat plate structure, and the abutment area is formed on the abutment plate (21).

3. The vehicle tailgate buffer structure according to claim 2, characterized in that, The rear bumper (2) also includes a first plate (22) and a second plate (23), the first plate (22) being connected to the top side of the abutment plate (21), and the second plate (23) being connected to the bottom side of the abutment plate (21); The connection between the abutment plate (21) and the first plate (22), as well as the connection between the abutment plate (21) and the second plate (23), are all smoothly transitioned.

4. The vehicle tailgate buffer structure according to claim 1, characterized in that, The vehicle body support (5) includes a base portion (51) and a frame portion (52); The base part (51) and the frame part (52) are both fixed on the rear panel (1) of the vehicle body, and the frame part (52) is fixedly connected to the base part (51). The frame part (52) and the base part (51) together form a cavity structure, and the frame part (52) abuts against the rear bumper (2).

5. The vehicle tailgate buffer structure according to claim 4, characterized in that, The frame part (52) includes a connecting plate (521), a support plate (522), a mounting plate (523), and two side plates (524). The support plate (522) and the mounting plate (523) are respectively connected to the two opposite edges of the connecting plate (521) and bend and extend in a direction away from each other; The two side plates (524) are respectively connected to the other two opposite edges of the connecting plate (521) and bend towards the base portion (51) relative to the connecting plate (521). The two side plates (524) are connected to the base portion (51). An overlapping edge is formed on the side panel (524), the overlapping edge abuts against the side of the support plate (522) near the side panel (524), the support plate (522) abuts against the rear bumper (2) to support the rear bumper (2), and the mounting plate (523) is fixedly connected to the rear body panel (1).

6. The vehicle tailgate buffer structure according to claim 5, characterized in that, The base portion (51) includes a horizontal plate (511) and a vertical plate (512); The longitudinal plate (512) is connected to the rear body panel (1), and the transverse plate (511) extends away from the rear body panel (1) relative to the longitudinal plate (512). The transverse plate (511) is fixedly connected to the edges of the two side plates (524) away from the connecting plate (521). The transverse plate (511), the two side plates (524) and the support plate (522) together form the cavity structure.

7. The vehicle tailgate buffer structure according to claim 1, characterized in that, It also includes a buffer plate (7), which is disposed between the vehicle body bracket (5) and the rear bumper (2) so that the vehicle body bracket (5) abuts against the rear bumper (2) through the buffer plate (7).

8. The vehicle tailgate buffer structure according to claim 1, characterized in that, The buffer (4) includes a mounting base (41), an adjusting rod (42), and an elastic buffer cover (43). The mounting base (41) is installed on the side of the rear door (3) facing the rear bumper (2); The adjusting rod (42) is movably connected to the mounting base (41) and can move relative to the mounting base (41) along the axial direction of the mounting base (41); The elastic buffer cover (43) is connected to the adjusting rod (42). The adjusting rod (42) drives the elastic buffer cover (43) to move relative to the mounting base (41) to adjust the distance between the elastic buffer cover (43) and the mounting base (41). The end face of the elastic buffer cover (43) is used to abut against the wear-resistant sheet (6).

9. The vehicle tailgate buffer structure according to claim 8, characterized in that, The buffer (4) also includes a sealing ring (44), which is sleeved on the mounting base (41) and is sealed to the outer wall of the mounting base (41); The rear door (3) is provided with an installation hole, the mounting base (41) is inserted into the installation hole, and the sealing ring (44) is sealed to the rear door (3) to close the gap between the mounting base (41) and the inner wall of the installation hole.

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

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