Buffer block structure of automobile back door

Abstract

The utility model provides an automobile back door buffer block structure which comprises a buffer seat, the buffer seat is used for being clamped in a mounting hole of a back door metal plate, threads are arranged on the wall of a through hole of the buffer seat, an adjusting rod is arranged in the buffer seat in a penetrating mode, threads are arranged on the side wall of the adjusting rod and used for being connected with the buffer seat in a threaded mode, and the adjusting rod is connected with the buffer seat in a threaded mode. And an elastic buffer head is arranged at the top of the adjusting rod. The back door buffer block solves the problems that the compression amount of an existing back door buffer block needs to be adjusted according to feelings, and it is difficult to guarantee that a back door and a side wall have enough buffering.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a buffer block structure for a rear door of an automobile. Background Art

[0002] With the development of society, people's pursuit of quality of life is getting higher and higher. In order to meet customers' needs for outdoor off-road or urban outings, the trunk of the car is used to place larger items. In daily use, the back door is frequently opened and closed, and the back door is prone to collision and paint loss. In order to solve the above problems, the structure and material of the buffer block are generally changed to better avoid the collision between the back door and the side panel. When assembling the existing threaded buffer block, it is necessary to adjust the compression amount by hand by feeling, and it is difficult to ensure that the back door and the side panel have sufficient buffering. As one of the important parts of a car, the car door is indispensable for performance indicators such as NVH, door collision safety, and door droop. Under the condition of meeting these performance and functional indicators, it is a difficult problem currently faced to design a buffer block with low cost, simple structure, and easy adjustment. Utility Model Content

[0003] The utility model aims to provide a buffer block structure for a rear door of an automobile, which solves the problem that the compression amount of the existing rear door buffer block needs to be adjusted by feeling, and it is difficult to ensure that the rear door and the side wall have sufficient buffering.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A car tailgate buffer block structure includes a buffer seat, the buffer seat is used to be clamped in the mounting hole of the tailgate sheet metal, the through hole wall of the buffer seat is provided with threads, an adjustment rod is passed through the buffer seat, the side wall of the adjustment rod is provided with threads and is used to be screwed to the buffer seat, and the top of the adjustment rod is provided with an elastic buffer head.

[0006] Furthermore, a plurality of groups of buckles and limiting bosses are arranged at intervals on the outer side wall of the buffer seat, and narrow grooves adapted to the buckles and wide grooves adapted to the limiting bosses are arranged at intervals on the inner side of the mounting hole.

[0007] Furthermore, a circle of limiting convex ring is arranged on the outer side wall of the buffer seat, and the limiting convex ring cooperates with the buckle and the limiting boss to clamp the buffer seat in the installation hole.

[0008] Furthermore, a clamping ring is clamped and connected on the outer circle of the limiting convex ring, and the lower end of the clamping ring is used for crimping with the back door sheet metal.

[0009] Furthermore, an elastic skirt is provided at one end of the clamping ring facing the limiting convex ring, and the elastic skirt is used for crimping with the rear door sheet metal.

[0010] Furthermore, an adjusting head is provided at one end of the adjusting rod away from the buffer seat, the elastic buffer head is fixedly sleeved on the adjusting head, and the adjusting head is clamped with the buffer seat.

[0011] Furthermore, an upper annular groove is formed at one end of the adjusting head facing the buffer seat, and a lower annular groove is formed at one end of the buffer seat facing the adjusting head. The upper annular groove and the lower annular groove are connected by interference fit of the groove walls.

[0012] Furthermore, the side wall of the elastic buffer head and the side wall of the regulating head are commonly connected in the lower annular groove.

[0013] Furthermore, a plurality of groups of limiting grooves are evenly spaced in a circular array on the outer side wall of the adjusting head, and a plurality of groups of limiting ribs are arranged on the inner side wall of the elastic buffer head at positions corresponding to the limiting grooves, and the limiting ribs are connected to the limiting grooves.

[0014] Furthermore, an adjustment through hole is axially provided in the elastic buffer head, and an adjustment groove is provided at one end of the adjustment head corresponding to the adjustment through hole.

[0015] Beneficial effects of the utility model: compared with the traditional structure, the buffer block structure of the utility model can adaptively assemble tailgates with different gaps, is easy to install, has greatly improved performance, is more reliable, is more conducive to the buffering effect of the tailgate, and has strong practicality and good application prospects.

[0016] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is an assembly diagram of a buffer block structure of a car back door and a back door sheet metal.

[0018] Figure 2 This is an assembly diagram of a buffer block structure for a rear door of an automobile in another direction according to the utility model.

[0019] Figure 3 This is a structural diagram of the mounting holes of the back door sheet metal in the utility model.

[0020] Figure 4 The utility model discloses a structural diagram of a buffer block for a rear door of an automobile.

[0021] Figure 5 Another structural diagram of a buffer block for a rear door of an automobile according to the utility model.

[0022] Figure 6 for Figure 4 Exploded diagram.

[0023] Figure 7The utility model is an exploded view of a buffer block structure of a rear door of an automobile.

[0024] Figure 8 This is an exploded view of the buffer block structure of a rear door of an automobile in another direction according to the utility model.

[0025] Fig. 9 The utility model is an assembly cross-sectional view of a buffer block structure for a rear door of an automobile. DETAILED DESCRIPTION

[0026] like Figures 1 to 9 The buffer block structure of a rear door of an automobile shown in the figure includes a buffer seat 1, which is used to be clamped in the mounting hole 101 of the rear door sheet metal 10, and the through hole wall of the buffer seat 1 is provided with a thread. An adjusting rod 3 is passed through the buffer seat 1, and the side wall of the adjusting rod 3 is provided with a thread and is used to be screwed to the buffer seat 1, and the top of the adjusting rod 3 is provided with an elastic buffer head 4.

[0027] Preferably, in combination with the above-mentioned solution, in order to facilitate the insertion and limiting of the mounting hole 101 of the tailgate sheet metal 10, a plurality of groups of buckles 11 and limiting bosses 12 are arranged at intervals on the outer wall of the buffer seat 1, and a narrow groove 102 adapted to the buckle 11 and a wide groove 103 adapted to the limiting boss 12 are arranged at intervals on the inner side of the mounting hole 101.

[0028] Preferably, in combination with the above-mentioned solution, in order to facilitate installation and limiting, a circle of limiting protrusion ring 13 is provided on the outer wall of the buffer seat 1, and the limiting protrusion ring 13 cooperates with the buckle 11 and the limiting boss 12 to clamp the buffer seat 1 in the installation hole 101.

[0029] Preferably, in combination with the above-mentioned solution, in order to better clamp and install the limit, a clamping ring 2 is clamped and connected on the outer circle of the limit convex ring 13, and the lower end of the clamping ring 2 is used for crimping with the back door sheet metal 10.

[0030] Preferably, in combination with the above solution, in order to provide better elastic clamping force, the clamping ring 2 is provided with an elastic skirt 21 at one end facing the limiting convex ring 13 , and the elastic skirt 21 is used for crimping with the rear door sheet metal 10 .

[0031] Preferably, in combination with the above-mentioned scheme, in order to facilitate the installation and fixation of the elastic buffer head 4 and to facilitate screwing the adjusting rod 3 into the buffer seat 1, an adjusting head 31 is provided at one end of the adjusting rod 3 away from the buffer seat 1, and the elastic buffer head 4 is fixedly sleeved on the adjusting head 31, and the adjusting head 31 is clamped with the buffer seat 1.

[0032] Preferably, in combination with the above-mentioned scheme, in order to facilitate the installation and connection between the adjusting head 31 and the buffer seat 1, an upper annular groove 32 is provided at one end of the adjusting head 31 facing the buffer seat 1, and a lower annular groove 14 is provided at one end of the buffer seat 1 facing the adjusting head 31, and the upper annular groove 32 and the lower annular groove 14 are connected by interference fit of the groove walls.

[0033] Preferably, in combination with the above solution, in order to provide better elastic pressing force, the side wall of the elastic buffer head 4 and the side wall of the adjusting head 31 are connected together in the lower annular groove 14. The outer side of the elastic buffer head 4 is also provided with an annular rib, which can better fit with the side wall of the lower annular groove 14.

[0034] Preferably, in combination with the above-mentioned scheme, in order to prevent the connection between the elastic buffer head 4 and the adjusting head 31 from loosening, a plurality of groups of limiting grooves 33 are evenly spaced in a circular array on the outer wall of the adjusting head 31, and a plurality of groups of limiting ribs 42 are arranged on the inner wall of the elastic buffer head 4 at positions corresponding to the limiting grooves 33, and the limiting ribs 42 are connected in the limiting grooves 33.

[0035] Preferably, in combination with the above scheme, in order to facilitate the use of tools such as a screwdriver to twist, an adjustment hole 41 is axially opened in the elastic buffer head 4, and an adjustment groove 34 is opened at one end of the adjustment head 31 corresponding to the adjustment hole 41. The adjustment groove 34 can be set to a hexagonal groove to facilitate operation with a T30 screwdriver.

[0036] The use of the utility model:

[0037] When installing the utility model, first adjust the back door stopper and the lock position to ensure that the back door posture meets the defined requirements, such as Figure 1 As shown, the buffer blocks need to be installed on the three corners of the back door;

[0038] During assembly, first screw the adjusting rod 3 with the elastic buffer head 4 into the buffer seat 1 with the clamping ring 2 through the threaded structure, and at this time, properly reserve some height after the adjusting rod 3 is inserted so that the insertion amount of the adjusting rod 3 and the buffer seat 1 does not fall off, thus forming a buffer block assembly;

[0039] Then align the buffer seat 1 of the buffer block assembly with the mounting hole 101 of the back door sheet metal 10. At this time, the buckle 11 and the limiting boss 12 on the buffer seat 1 need to be aligned with the narrow groove 102 and the wide groove 103 of the mounting hole 101 before insertion. After the buffer seat 1 is inserted into the mounting hole 101, the buffer block assembly is rotated again. At this time, the buckle 11 and the limiting boss 12 on the buffer seat 1 can be clamped on the end surface of the back door sheet metal 10.

[0040] Then close the back door and let it close naturally through the self-priming lock. At this time, the back door will further press the adjustment rod 3 into the buffer seat 1; since the buffer seat 1 is made of elastic material, the thread structure will not be damaged;

[0041] Finally, open the back door, insert a T30 screwdriver into the adjustment through hole 41 and the adjustment slot 34, and rotate the adjustment rod 3 90° clockwise, so that the adjustment rod 3 naturally has an extension of 1 mm, which can better adapt to the buffering of the back door and the side panel.

[0042] In the utility model, the material of the buffer seat 1 is TPE rubber, the material of the limiting convex ring 13 is PA66 plastic, the material of the adjusting rod is PA6+GF30 composite material, and the material of the elastic buffer head 4 is TPE rubber.

[0043] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "bottom", "inside", "outside", "one end", "one side", "two ends", "both sides", etc. 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 on the present invention.

[0044] The utility model is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or they are directly applied to other occasions, they all fall within the protection scope of the utility model.

Claims

1. A buffer block structure for a car back door, characterized in that: The invention comprises a buffer seat (1), wherein the buffer seat (1) is used for being snapped into a mounting hole (101) of a back door sheet metal (10), a thread is arranged on the through hole wall of the buffer seat (1), an adjusting rod (3) is passed through the buffer seat (1), a thread is arranged on the side wall of the adjusting rod (3) and is used for being screwed to the buffer seat (1), and an elastic buffer head (4) is arranged on the top of the adjusting rod (3); a plurality of groups of buckles (11) and limiting bosses (12) are arranged at intervals on the outer wall of the buffer seat (1), and a narrow groove (102) adapted to the buckle (11) and a wide groove (103) adapted to the limiting boss (12) are arranged at intervals on the inner side of the mounting hole (101).

2. The automobile back door buffer block structure according to claim 1 is characterized in that: A circle of limiting convex ring (13) is arranged on the outer side wall of the buffer seat (1), and the limiting convex ring (13) cooperates with the buckle (11) and the limiting boss (12) to clamp the buffer seat (1) in the installation hole (101).

3. The automobile back door buffer block structure according to claim 2 is characterized in that: A clamping ring (2) is clamped and connected on the outer circle of the limiting convex ring (13), and the lower end of the clamping ring (2) is used for crimping with the back door sheet metal (10).

4. The automobile back door buffer block structure according to claim 3 is characterized in that: An elastic skirt (21) is provided at one end of the clamping ring (2) facing the limiting convex ring (13), and the elastic skirt (21) is used for crimping with the back door sheet metal (10).

5. The automobile back door buffer block structure according to claim 1, characterized in that: An adjusting head (31) is provided at one end of the adjusting rod (3) away from the buffer seat (1), the elastic buffer head (4) is fixedly sleeved on the adjusting head (31), and the adjusting head (31) is clamped with the buffer seat (1).

6. The automobile back door buffer block structure according to claim 5, characterized in that: An upper annular groove (32) is formed at one end of the regulating head (31) facing the buffer seat (1), and a lower annular groove (14) is formed at one end of the buffer seat (1) facing the regulating head (31). The upper annular groove (32) and the lower annular groove (14) are connected by interference fit of the groove walls.

7. The automobile back door buffer block structure according to claim 6, characterized in that: The side wall of the elastic buffer head (4) and the side wall of the regulating head (31) are connected together in the lower annular groove (14).

8. The automobile back door buffer block structure according to claim 5, characterized in that: A plurality of groups of limiting grooves (33) are evenly spaced in a circular array on the outer side wall of the regulating head (31), and a plurality of groups of limiting ribs (42) are arranged on the inner side wall of the elastic buffer head (4) at positions corresponding to the limiting grooves (33), wherein the limiting ribs (42) are connected to the limiting grooves (33).

9. The automobile back door buffer block structure according to claim 5, characterized in that: An adjustment through hole (41) is provided in the elastic buffer head (4) along the axial direction, and an adjustment groove (34) is provided at one end of the adjustment head (31) corresponding to the adjustment through hole (41).

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