Buffer assembly, back door system and vehicle

Abstract

The utility model provides a buffer assembly, backdoor system and vehicle, relate to the technical field of vehicle, buffer assembly includes base, adjusting shaft and locking piece, base is provided with cavity, adjusting shaft part is inserted in the cavity and is used for the axial movement of adjusting shaft in the cavity, adjusting shaft extends out one end of cavity and is used for abutting against the mating piece, and locking piece is used for locking the mating piece. The adjusting shaft is provided with a through hole extending in the axial direction of the adjusting shaft, the locking piece is arranged in the cavity and is configured to achieve locking through a tool inserted into the cavity through the through hole, and the locking piece is used for being at least partially inserted into the through hole during locking, so that the end, inserted into the cavity, of the adjusting shaft expands and deforms and is tightly attached to the cavity wall of the cavity. Therefore, the buffer block assembly can be adjusted in place by opening and closing the back door once, the buffer assembly can be adjusted without repeatedly opening and closing the back door manually, the workload of adjusting the buffer assembly can be reduced, the working efficiency can be improved, the structure is simple, and operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle parts technical field, specifically, relate to a buffer assembly, back door system and vehicle. BACKGROUND

[0002] At present, the automobile back door is usually configured with back door buffer block, and with the continuous progress of the automobile industry, the requirement of back door buffer block is also higher and higher. For example, in the process of vehicle driving and back door closing, the back door buffer block is required to provide buffering performance, and to ensure that the back door does not interfere with other parts of the vehicle body.

[0003] In the related art, when installing the back door buffer block, the operator needs to repeatedly open and close the back door to adjust and inspect the position of the buffer block, so as to ensure that the buffer block is just fitted with the mating surface of the back door, and the whole process is large in workload and low in efficiency. UTILITY MODEL CONTENTS

[0004] The problem solved by the utility model is: how to reduce the adjustment difficulty of back door buffer block.

[0005] To solve the above problems, the utility model provides a buffer assembly, back door system and vehicle.

[0006] In the first aspect, the utility model provides a buffer assembly, which comprises a base, an adjusting shaft and a locking piece, the base is provided with a cavity, the adjusting shaft is partially inserted into the cavity and is used for moving in the axial direction of the adjusting shaft in the cavity, one end of the adjusting shaft extending out of the cavity is used for abutting with a matching piece, the adjusting shaft is provided with a through hole extending in the axial direction thereof, the locking piece is arranged in the cavity and is configured to be locked by a tool inserted into the cavity through the through hole, and the locking piece is used for being at least partially inserted into the through hole when locked, so that one end of the adjusting shaft inserted into the cavity is deformed and tightly fitted with the cavity wall.

[0007] Optionally, the through hole comprises a first through hole and a second through hole arranged in the axial direction of the adjusting shaft, the first through hole is a conical hole, the small end of the conical hole communicates with the second through hole, and the hole wall of the first through hole is provided with a conical internal thread, the locking piece is provided with a conical external thread, and the locking piece is used for forming a threaded connection with the adjusting shaft through the conical external thread and the conical internal thread when locked.

[0008] Optionally, the middle part of the locking piece is provided with a tool hole, the tool hole is coaxially arranged with the through hole and is used for cooperating with the tool to tighten the locking piece.

[0009] Optionally, the outer side wall of the adjusting shaft is provided with one of an anti-rotation protrusion and an anti-rotation groove, the cavity wall of the cavity is provided with the other of the anti-rotation protrusion and the anti-rotation groove, and the anti-rotation groove extends along the axial direction of the adjusting shaft, and the anti-rotation protrusion is inserted into the anti-rotation groove and can move along the axial direction of the adjusting shaft in the anti-rotation groove.

[0010] Optionally, the anti-rotation protrusion or the anti-rotation groove provided on the outer side wall of the adjusting shaft extends along the axial direction of the adjusting shaft from one end to the other end of the adjusting shaft.

[0011] Optionally, the outer side wall of the base is provided with a buckle structure, and the base is used for being clamped with the body panel through the buckle structure.

[0012] Optionally, the buffer assembly further comprises a ring-shaped sealing member, and the ring-shaped sealing member is sleeved outside the base, and the base is used for being sealingly connected with the body panel through the ring-shaped sealing member.

[0013] Optionally, the buffer assembly further comprises a cover plate, and the cover plate is connected to one end of the adjusting shaft which extends out of the cavity and is used for abutting against the matching piece.

[0014] In a second aspect, the utility model provides a back door system, comprising the buffer assembly.

[0015] In a third aspect, the utility model provides a vehicle, comprising the buffer assembly or the back door system.

[0016] The beneficial effect of the buffer assembly is that: the cavity is arranged on the base, the adjusting shaft and the locking piece are arranged in the cavity, so that the adjusting shaft and the locking piece are provided with mounting positions; and the through hole is arranged on the adjusting shaft, the adjusting shaft is arranged to be movable in the cavity along the axial direction of the adjusting shaft, the locking piece is arranged to be at least partially inserted into the through hole during locking, so that the end of the adjusting shaft inserted into the cavity is deformed, when the buffer assembly is applied to the back door of the vehicle, the buffer assembly is assembled on the vehicle body sheet metal part such as a tail lamp mounting plate, then the adjusting shaft is pulled out of the cavity to a certain height, and then the back door is closed, when the cooperating part such as a support rod support on the back door contacts the adjusting shaft, the cooperating part extrudes the adjusting shaft along the axial direction of the adjusting shaft, so that the adjusting shaft moves along the axial direction to the locking piece, after the back door is closed in place, the adjusting shaft is stopped at the current position, then the back door is opened, the locking piece is locked by the tool inserted into the through hole, during the locking process, the locking piece is gradually inserted into the through hole by rotating around the central axis of the adjusting shaft, so that the locking end of the adjusting shaft is deformed to tightly fit the cavity wall, so that the adjusting shaft is fixed on the base, and the locking of the adjusting shaft at the current position is realized. In this way, the operation is simple and convenient, and the buffer assembly can be adjusted in place by opening and closing the back door once, without manually opening and closing the back door repeatedly to adjust the buffer assembly, so that the workload of adjusting the buffer assembly is reduced, and the work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an explosion structure schematic view of the buffer assembly in the utility model embodiment.

[0018] Figure 2 It is a three-dimensional structure schematic view of the buffer assembly in the utility model embodiment.

[0019] Figure 3 It is a sectional view schematic view of the buffer assembly in the utility model embodiment.

[0020] Figure 4 It is a structure schematic view of the adjusting shaft in the utility model embodiment.

[0021] Figure 5 It is a structure schematic view of the locking piece in the utility model embodiment.

[0022] Figure 6 It is a structure schematic view of the base in the utility model embodiment.

[0023] Figure 7 It is a structure schematic view of the cover plate in the utility model embodiment.

[0024] Figure 8The structure schematic view of the buffer assembly assembled on the vehicle body sheet metal part in the embodiment of the utility model;

[0025] Figure 9 The cross section schematic view when the buffer assembly in the embodiment of the utility model is assembled on the vehicle body sheet metal part.

[0026] Mark explanation:

[0027] 1, base; 11, cavity; 12, buckle structure; 13, first limit boss; 14, second limit boss; 2, adjusting shaft; 21, through hole; 211, first through hole; 212, second through hole; 22, tapered internal thread; 3, locking piece; 31, tapered external thread; 32, tool hole; 4, annular sealing element; 5, cover plate; 51, clamping groove; 6, anti-rotation bump; 7, anti-rotation groove; 100, buffer assembly; 200, vehicle body sheet metal part. Specific implementation

[0028] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below with reference to the drawings. Although some embodiments of the utility model are shown in the drawings, it should be understood that the utility model can be realized in various forms, and should not be interpreted as being limited to the embodiments described herein, on the contrary, these embodiments are provided to more thoroughly and completely understand the utility model. It should be understood that the drawings and embodiments of the utility model are only for illustrative purposes, and are not intended to limit the scope of protection of the utility model.

[0029] The Z axis in the drawing represents the vertical direction, that is, the up-down position, and the positive direction of the Z axis represents the upper side, and the negative direction of the Z axis represents the lower side. It should be noted that the meaning of the aforementioned Z axis is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, structure and operation, therefore it cannot be understood as a limitation of the utility model.

[0030] The term "comprising" and its variants used herein are open-ended, that is, "including but not limited to"; the term "based on" is "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiment". Related definitions of other terms will be given in the following description. It should be noted that the "first", "second", etc. concepts mentioned in the utility model are only used to distinguish different devices, modules or units, and are not intended to limit the functions performed by these devices, modules or units in order or mutual dependence.

[0031] It should be noted that the modification of "one" and "multiple" in the utility model is illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise explicitly indicated in the context, it should be understood as "one or more".

[0032] In the related art, the automobile back door is usually provided with a back door buffer block, and with the continuous progress of the automobile industry, the requirements for the back door buffer block are also getting higher and higher. For example, during the vehicle driving and back door closing process, the back door buffer block is required to provide buffering performance and ensure that the back door does not interfere with or collide with other parts of the vehicle body. However, when installing the back door buffer block, the operator needs to repeatedly open and close the back door to adjust and inspect the position of the buffer block, so as to ensure that the buffer block is just fitted with the mating surface of the back door, and the whole process is laborious and low in efficiency.

[0033] In view of the problems in the above related art, the utility model provides a buffer assembly, a back door system and a vehicle.

[0034] It should be noted that the buffer assembly provided by the utility model can not only be applied to the back door of the vehicle, but also be applied to other opening and closing members that need to be buffered. In order to facilitate description, the buffer assembly is taken as an example to be applied to the back door of the vehicle for detailed description hereinafter.

[0035] In combination with Figures 1 to 3 As shown in the utility model embodiment, a buffer assembly 100 is provided, which comprises a base 1, an adjusting shaft 2 and a locking member 3. The base 1 is provided with a cavity 11. The adjusting shaft 2 is partially inserted into the cavity 11 and is used to move in the axial direction of the adjusting shaft 2 in the cavity 11. One end of the adjusting shaft 2 extending out of the cavity 11 is used to abut against a mating member. The adjusting shaft 2 is provided with a through hole 21 extending in the axial direction thereof. The locking member 3 is arranged in the cavity 11 and is configured to be locked by a tool inserted into the cavity 11 through the through hole 21. When locked, the locking member 3 is at least partially inserted into the through hole 21, so that the end of the adjusting shaft 2 inserted into the cavity 11 is deformed and tightly fitted with the cavity wall of the cavity 11.

[0036] Specifically, the buffer assembly 100 mainly comprises the base 1, the adjusting shaft 2 and the locking member 3. The base 1 is a hollow structure provided with the cavity 11 and is detachably fixed to the vehicle body panel 200 by, for example, clamping or screwing. The adjusting shaft 2 is made of soft material and is provided with the through hole 21, i.e., the adjusting shaft 2 is a hollow shaft structure, so that the tool used to lock the locking member 3 can be inserted into the through hole 21 to lock the locking member 3. The cavity 11 can be a through cavity structure (i.e., both ends of the cavity 11 are open), or a cavity structure with one end open and the other end closed. In this case, the adjusting shaft 2 and the locking member 3 are inserted into the cavity 11 from the open end of the cavity 11. Furthermore, the adjusting shaft 2 can move in the axial direction thereof in the cavity 11, i.e., the adjusting shaft 2 can move in the axial direction thereof in the cavity 11. Figure 3The adjusting shaft 2 can move up and down in the cavity 11, that is, the adjusting shaft 2 can move in the Z-axis direction, which is also the up-down direction. Since one axial end of the adjusting shaft 2 is used for locking cooperation with the locking piece 3, the one axial end of the adjusting shaft 2 can be referred to as a locking end. Since the other axial end of the adjusting shaft 2 is used for abutting cooperation with the cooperating piece, the other axial end of the adjusting shaft 2 can be referred to as an abutting end. The locking piece 3 can have a conical frustum structure, and the small end of the locking piece 3 faces the locking end of the adjusting shaft 2. At this time, the hole wall of the through hole 21 at the end facing the locking piece 3 can be provided as a conical surface, the large end of the conical surface faces the locking piece 3 having the conical frustum structure, and the conical angle of the conical surface is smaller than the conical angle of the conical frustum structure. In the initial state, the locking end of the adjusting shaft 2 is not locked with the locking piece 3. At this time, the adjusting shaft 2 as a whole is in a natural state and is in clearance fit or transition fit with the cavity 11, so that the adjusting shaft 2 can move up and down in the cavity 11. When the locking piece 3 is locked, the locking piece 3 is at least partially inserted into the through hole 21 of the adjusting shaft 2 and is in interference fit with the through hole 21, so that the locking end of the adjusting shaft 2 is deformed by expansion, that is, the locking end of the adjusting shaft 2 is deformed by expansion at the hole opening of the through hole 21, and then the locking end of the adjusting shaft 2 is tightly fitted with the cavity wall of the cavity 11.

[0037] In the embodiment, the adjusting shaft 2 and the locking piece 3 can be provided with installation positions by providing the cavity 11 on the base 1 and arranging the adjusting shaft 2 and the locking piece 3 in the cavity 11. Moreover, the adjusting shaft 2 can be arranged to move in the axial direction of the adjusting shaft 2 in the cavity 11 by providing the adjusting shaft 2 with the through hole 21, and the locking piece 3 is arranged to be at least partially inserted into the through hole 21 when locked, so that the end of the adjusting shaft 2 inserted into the cavity 11 is deformed by expansion. When the buffer assembly 100 is applied to the back door of the vehicle, the buffer assembly 100 can be assembled as a whole on the vehicle body panel 200 such as a tail lamp mounting plate first, then the adjusting shaft 2 is pulled out of the cavity 11 to a certain height, and then the back door is closed. When the cooperating piece such as a support rod bracket on the back door contacts the adjusting shaft 2, the cooperating piece will press the adjusting shaft 2 in the axial direction of the adjusting shaft 2, so that the adjusting shaft 2 moves in the axial direction to the locking piece 3. After the back door is closed in place, the adjusting shaft 2 stops at the current position. Then, the tool is inserted into the through hole 21 to lock the locking piece 3 while the adjusting shaft 2 remains at the current position. During the locking process, the locking piece 3 can be gradually inserted into the through hole 21 by rotating around the central axis of the adjusting shaft 2, so that the locking end of the adjusting shaft 2 is deformed by expansion to tightly fit with the cavity wall of the cavity 11, thereby fixing the adjusting shaft 2 on the base 1 and realizing the locking of the adjusting shaft 2 at the current position. In this way, the operation is simple and convenient, and the buffer assembly 100 can be adjusted in place after the back door is opened and closed once, without the need for manual repeated opening and closing of the back door to adjust the buffer assembly 100, thereby reducing the workload of adjusting the buffer assembly 100 and improving the work efficiency.

[0038] Further, as shown in Figure 3 and Figure 6 shown, the cavity 11 of the base 1 is provided with a first limiting boss 13 in the form of a ring, which is located at the side of the locking member 3 away from the adjusting shaft 2 and is used to support the locking member 3. In this way, when the buffer assembly 100 is assembled, the locking member 3 can be installed into the cavity 11 of the base 1 and placed on the first limiting boss 13, so as to support and limit the locking member 3 by the first limiting boss 13, thereby preventing the locking member 3 from falling out of the cavity 11.

[0039] Alternatively, as shown in Figures 3 to 5 shown, the through hole 21 comprises a first through hole 211 and a second through hole 212 arranged along the axial direction of the adjusting shaft 2, the first through hole 211 is a conical hole, the small end of the conical hole is in communication with the second through hole 212, and the hole wall of the first through hole 211 is provided with a tapered internal thread 22, and the locking member 3 is provided with a tapered external thread 31, and the locking member 3 is used to form a threaded connection with the adjusting shaft 2 through the tapered external thread 31 and the tapered internal thread 22 when locked.

[0040] In this alternative embodiment, the through hole 21 is a combined hole structure, for example, in one example, as shown in Figure 3 , the through hole 21 is a combination of a conical hole and a cylindrical hole, that is, the first through hole 211 and the second through hole 212 are respectively a conical hole and a cylindrical hole, and in other examples, the through hole 21 can also be a combination of a conical hole and a prism hole, that is, the first through hole 211 and the second through hole 212 are respectively a conical hole and a prism hole, which is not limited here. At the same time, the hole wall of the conical hole is provided with a tapered internal thread 22, and the locking member 3 is provided with a tapered external thread 31 matched with the tapered internal thread 22, that is, the locking member 3 is a tapered nut structure provided with a tapered external thread 31. In this way, the locking can be achieved by rotating and moving upward the locking member 3 by tightening the locking member 3, which not only locks firmly, but also avoids the adjusting shaft 2 from moving along its axial direction during the tightening of the locking member 3, thereby ensuring the accuracy of the locking position of the adjusting shaft 2.

[0041] Alternatively, as shown in Figure 5 shown, the middle part of the locking member 3 is provided with a tool hole 32, which is coaxially arranged with the through hole 21 and is used to cooperate with the tool to tighten the locking member 3.

[0042] In this alternative embodiment, when the locking member 3 is a tapered nut structure provided with a tapered external thread 31, the tool hole 32 is a light hole structure, at this time, the tool hole 32 is used to be inserted and matched with the workpiece joint on the sleeve tool, and the shape of the tool hole 32 matches the shape of the workpiece joint on the sleeve tool, for example Figure 5As shown, if the workpiece joint on the sleeve tool is in a petal-shaped structure, the tool hole 32 can be designed as a petal-shaped hole; for example, if the workpiece joint on the sleeve tool is in a square structure, the tool hole 32 can be designed as a square hole. When the locking piece 3 is in a conical platform structure without a tapered external thread 31, the tool hole 32 can be a threaded hole, and at this time, the workpiece joint on the sleeve tool is a threaded rod matched with the threaded hole. In this way, by providing the tool hole 32 at the middle part of the locking piece 3 and coaxially arranging the tool hole 32 with the through hole 21, the sleeve tool can be inserted into the through hole 21 of the adjusting shaft 2, and the workpiece joint of the sleeve tool can be inserted into the tool hole 32 of the locking piece 3, so that the locking piece 3 can be tightened, and the locking operation of the locking piece 3 is more simple and convenient.

[0043] Optionally, as shown in Figure 2 、 Figure 4 and Figure 6 , the outer side wall of the adjusting shaft 2 is provided with one of the anti-rotation protrusion 6 and the anti-rotation groove 7, the cavity wall of the cavity 11 is provided with the other one of the anti-rotation protrusion 6 and the anti-rotation groove 7, and the anti-rotation groove 7 extends along the axial direction of the adjusting shaft 2, and the anti-rotation protrusion 6 is inserted into the anti-rotation groove 7 and can move in the anti-rotation groove 7 along the axial direction of the adjusting shaft 2.

[0044] In this optional embodiment, an anti-rotation structure is provided between the adjusting shaft 2 and the base 1. Specifically, in one example, as shown in Figure 4 and Figure 6 , the outer side wall of the adjusting shaft 2 is provided with the anti-rotation protrusion 6, and the cavity wall of the cavity 11 is provided with the anti-rotation groove 7, and in another example, the outer side wall of the adjusting shaft 2 is provided with the anti-rotation groove 7, and the cavity wall of the cavity 11 is provided with the anti-rotation protrusion 6; and the anti-rotation protrusion 6 is inserted into the anti-rotation groove 7. In this way, when the locking piece 3 is locked in a rotating manner, the anti-rotation protrusion 6 and the anti-rotation groove 7 in plug-in cooperation can prevent the adjusting shaft 2 from rotating relative to the base 1, thereby further ensuring the accuracy of the locking position of the adjusting shaft 2. In addition, by arranging the anti-rotation protrusion 6 to move in the anti-rotation groove 7 along the axial direction of the adjusting shaft 2, it is ensured that the adjusting shaft 2 can still move up and down in the cavity 11 after the anti-rotation protrusion 6 or the anti-rotation groove 7 is provided, and at the same time, the anti-rotation protrusion 6 and the anti-rotation groove 7 can also guide the up and down movement of the adjusting shaft 2, so as to ensure that the locking position of the adjusting shaft 2 is adjustable.

[0045] Further, as shown in Figure 4 and Figure 6 , the anti-rotation protrusion 6 and the anti-rotation groove 7 are provided in plurality, and the plurality of anti-rotation protrusions 6 and the plurality of anti-rotation grooves 7 are one-to-one corresponding and uniformly distributed along the circumferential direction of the adjusting shaft 2. In this way, on the one hand, the uniform distribution of the mass of the adjusting shaft 2 and the base 1 can be ensured, and on the other hand, the contact area between the adjusting shaft 2 and the base 1 can be increased, and the anti-rotation effect can be improved.

[0046] Optionally, in combination with Figure 4 As shown, the anti-rotation protrusion 6 or the anti-rotation groove 7 arranged on the outer side wall of the adjusting shaft 2 extends along the axial direction of the adjusting shaft 2 from one end to the other end of the adjusting shaft 2. In this way, not only can the convenience of machining the anti-rotation protrusion 6 or the anti-rotation groove 7 on the outer side wall of the adjusting shaft 2 be improved, but also the outer side wall structures of both ends of the adjusting shaft 2 can be made consistent, so that after the anti-rotation protrusion 6 or the anti-rotation groove 7 is machined, any one end of the adjusting shaft 2 can be selected to machine the first through hole 211 and the tapered internal thread 22, thereby improving the convenience of machining the first through hole 211 and the tapered internal thread 22.

[0047] Optionally, in combination with Figure 2 and Figure 9 As shown, the outer side wall of the base 1 is provided with a buckle structure 12, and the base 1 is used to be clamped with the vehicle body sheet metal part 200 through the buckle structure 12. In this way, the buffer assembly 100 can be quickly installed on the vehicle body sheet metal part 200, and the assembly efficiency is improved.

[0048] Further, in combination with Figure 2 , Figure 6 and Figure 9 As shown, the outer side wall of the base 1 is further provided with a ring-shaped second limiting boss 14, the second limiting boss 14 is located at one end of the buckle structure 12 close to the extending cavity 11 of the adjusting shaft 2, i.e. above the buckle structure 12, and the second limiting boss 14 is away from one end of the extending cavity 11 of the adjusting shaft 2 for abutting against the vehicle body sheet metal part 200.

[0049] Correspondingly, the vehicle body sheet metal part 200 can be provided with a matching hole, and the hole diameter of the matching hole is smaller than the outer diameter of the second limiting boss 14, when the base 1 is clamped at the matching hole through the buckle structure 12, the second limiting boss 14 is located above the matching hole, and the lower end surface of the second limiting boss 14 abuts against the vehicle body sheet metal part 200. In this way, the second limiting boss 14 and the buckle structure 12 are used to limit the base 1 in the up-down direction, so as to ensure that the base 1 is installed firmly.

[0050] Optionally, in combination with Figure 1 , Figure 3 and Figure 9As shown, the buffer assembly 100 further comprises a ring-shaped sealing member 4, which is sleeved outside the base 1 and is used to be sealingly connected with the body panel 200 through the ring-shaped sealing member 4. Specifically, the ring-shaped sealing member 4 can be located between the second limiting boss 14 and the buckle structure 12, and at this time, the ring-shaped sealing member 4 is used to seal the gap between the lower end surface of the second limiting boss 14 and the body panel 200, so as to realize axial sealing; or the ring-shaped sealing member 4 can be located at the matching hole on the body panel 200, and is used to seal the gap between the base 1 and the hole wall of the matching hole, so as to realize radial sealing. In this way, not only can rainwater or dust and the like be prevented from entering the vehicle from the assembly gap between the base 1 and the body panel 200, but also the vibration impact transmitted from the base 1 to the body panel 200 can be absorbed by the ring-shaped sealing member 4 when the back door is closed, so as to reduce the abnormal sound when the back door is closed.

[0051] Optionally, in combination with Figure 2 and Figure 3 As shown, the buffer assembly 100 further comprises a cover plate 5, which is connected to one end of the adjusting shaft 2 extending out of the cavity 11 and is used to abut against the matching member. The cover plate 5 can be fixed to the abutting end of the adjusting shaft 2 in a clamping manner. In the optional embodiment, the cover plate 5 not only has an aesthetic effect, but also can prevent rainwater or dust and the like from entering the adjusting shaft 2, so as to avoid corrosion of the connecting part between the locking member 3 and the adjusting shaft 2 by rainwater and the like, thereby prolonging the service life of the buffer assembly 100, and at the same time, the fixed interference amount between the adjusting shaft 2 and the matching member when the back door is closed is formed, so as to increase the supporting force of the buffer assembly 100 on the matching member, thereby solving the abnormal sound problem caused by insufficient supporting force.

[0052] Further, in combination with Figure 3 and Figure 7 As shown, one end of the cover plate 5 towards the adjusting shaft 2 is provided with a clamping groove 51, which is used to clamp the one end of the adjusting shaft 2 extending out of the cavity 11. In this way, the clamping between the cover plate 5 and the adjusting shaft 2 is realized.

[0053] The back door system provided by the embodiment of the utility model comprises the buffer assembly 100 as described above.

[0054] The back door system of the embodiment has the same beneficial effects as the buffer assembly 100 described above, and details are not repeated here.

[0055] The vehicle provided by the embodiment of the utility model comprises the buffer assembly 100 as described above or the back door system as described above.

[0056] The vehicle of the embodiment has the same beneficial effects as the buffer assembly 100 described above, and details are not repeated here.

[0057] Although the utility model discloses as above, the protection scope of the utility model is not limited to this only.The person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will all fall into the protection scope of the utility model.

Claims

1. A buffer component, characterized in that, The device includes a base (1), an adjusting shaft (2), and a locking member (3). The base (1) has a cavity (11). The adjusting shaft (2) is partially inserted into the cavity (11) and is used to move along the axial direction of the adjusting shaft (2) within the cavity (11). One end of the adjusting shaft (2) extending out of the cavity (11) is used to abut against a mating part. The adjusting shaft (2) has a through hole (21) extending along its axial direction. The locking member (3) is disposed within the cavity (11) and configured to lock by inserting a tool into the cavity (11) through the through hole (21). The locking member (3) is used to at least partially insert into the through hole (21) during locking, so that the end of the adjusting shaft (2) inserted into the cavity (11) expands and deforms and fits tightly against the cavity wall of the cavity (11).

2. The buffer assembly according to claim 1, characterized in that, The through hole (21) includes a first through hole (211) and a second through hole (212) arranged along the axial direction of the adjusting shaft (2). The first through hole (211) is a conical hole, and the small end of the conical hole communicates with the second through hole (212). The wall of the first through hole (211) is provided with a conical internal thread (22). The locking member (3) is provided with a conical external thread (31). The locking member (3) is used to form a threaded connection with the adjusting shaft (2) through the conical external thread (31) and the conical internal thread (22) when locked.

3. The buffer assembly according to claim 1, characterized in that, The locking member (3) has a tooling hole (32) in the middle part. The tooling hole (32) is coaxially arranged with the through hole (21) and is used to cooperate with the tooling to tighten the locking member (3).

4. The buffer assembly according to claim 1, characterized in that, The outer wall of the adjusting shaft (2) is provided with one of an anti-rotation protrusion (6) and an anti-rotation groove (7), and the cavity wall of the cavity (11) is provided with the other of the anti-rotation protrusion (6) and the anti-rotation groove (7). The anti-rotation groove (7) extends along the axial direction of the adjusting shaft (2), and the anti-rotation protrusion (6) is inserted into the anti-rotation groove (7) and can move along the axial direction of the adjusting shaft (2) within the anti-rotation groove (7).

5. The buffer assembly according to claim 4, characterized in that, The anti-rotation protrusion (6) or the anti-rotation groove (7) provided on the outer side wall of the adjusting shaft (2) extends from one end of the adjusting shaft (2) to the other end along the axial direction of the adjusting shaft (2).

6. The buffer assembly according to claim 1, characterized in that, The outer wall of the base (1) is provided with a snap-fit ​​structure (12), and the base (1) is used to snap-fit ​​with the body sheet metal part (100) through the snap-fit ​​structure (12).

7. The buffer assembly according to claim 1, characterized in that, It also includes an annular seal (4), which is sleeved on the outside of the base (1), and the base (1) is used to seal and connect with the body sheet metal part (100) through the annular seal (4).

8. The buffer assembly according to claim 1, characterized in that, It also includes a cover plate (5), which is connected to one end of the adjusting shaft (2) that extends out of the cavity (11) and is used to abut against the mating part.

9. A rear door system, characterized in that, Includes the buffer component as described in any one of claims 1-8.

10. A vehicle, characterized in that, Includes the buffer assembly as described in any one of claims 1-8 or the back door system as described in claim 9.

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