CN221346666U - Buffer block assembly and vehicle - Google Patents

Abstract

The utility model provides a buffer block assembly and a vehicle, wherein the buffer block assembly comprises a buffer block, a threaded body, a shell and a sealing ring; the shell is used for being fixed on a vehicle body or a back door; a portion of the threaded body movably extends into the housing; the buffer block is used for buffering the back door and is fixedly connected with the threaded body, and part of the buffer block extends into the shell and is propped against the shell; the buffer block can move together with the threaded body relative to the shell under the action of external force, so that the distance between the buffer block and the car body or the back door is changed; the sealing ring and the buffer block are sequentially arranged on the car body or the back door which is fixed with the shell from near to far; the sealing ring is fixed on the shell; the sealing ring is annular and is provided with an inner ring area penetrating the sealing ring and an outer ring area which is solid, the shell penetrates through the inner ring area, and the outer ring area is used for propping against a car body or a back door fixed with the shell to form a sealing surface; an open slot is arranged on the outer ring area, and the opening of the open slot faces to a car body or a back door fixed with the shell.

Description

Buffer block assembly and vehicle

Technical Field

The utility model particularly relates to a buffer block assembly and a vehicle.

Background

The vehicle is provided with a buffer block for buffering, limiting and supporting the back door. In the related art, some vehicles use rubber buffer blocks with external threads, mounting holes for adapting the buffer blocks are correspondingly formed in a vehicle body water flowing groove, and one to two circles of internal threads are formed on the side wall of each mounting hole; in such a scheme, the buffer block can be mounted on the vehicle body by enabling the buffer block to be in threaded fit with the mounting hole.

The disadvantage of the above scheme is that a small gap is easy to exist between the buffer block and the mounting hole due to the factors that the buffer block needs to be ensured to be screwed into the mounting hole, assembly errors, production errors and the like are difficult to avoid; therefore, after the buffer block and the mounting hole are assembled, the interface between the buffer block and the mounting hole and/or the buffer block and the surface of the launder are easy to be in a non-tight fit condition; the non-tight fit can lead the outside water to possibly infiltrate between the buffer block and the mounting hole and/or between the buffer block and the surface of the launder, thereby causing water leakage. In addition, besides the water leakage phenomenon, after external water permeates between the buffer block and the mounting hole, the sealing property and the connection reliability between the buffer block and the mounting hole, and the service life of the buffer block may be affected.

Further, in the above scheme, as the service time of the buffer block is increased, the buffer block may be aged; once the buffer blocks are aged, the aforementioned problem of water leakage due to the loose fit is more likely to occur.

Disclosure of utility model

The utility model aims to provide a buffer block assembly and a vehicle.

The buffer block assembly comprises a buffer block, a threaded body, a shell and a sealing ring; the shell is used for being fixed on a vehicle body or a back door; a portion of the threaded body movably extends into the housing; the buffer block is used for buffering the back door and is fixedly connected with the threaded body, and part of the buffer block extends into the shell and abuts against the shell; the buffer block can move together with the threaded body relative to the shell under the action of external force, so that the distance between the buffer block and the vehicle body or the back door is changed;

The sealing ring and the buffer block are sequentially arranged on a car body or a back door fixed with the shell from near to far; the sealing ring is fixed on the shell; the sealing ring is annular and is provided with an inner ring area penetrating through the sealing ring and an outer ring area which is solid, the shell penetrates through the inner ring area, and the outer ring area is used for propping against a car body or a back door fixed with the shell to form a sealing surface; the outer ring area is provided with an open slot, the opening of the open slot faces to a car body or a back door fixed with the shell, and the outer ring area forms a double-layer sealing structure on the car body or the back door fixed with the shell through the open slot.

Optionally, the sealing ring comprises a first entity and a second entity which are connected into a whole; the first entity encloses the inner ring area; the second body and the first body together form the outer ring region having the open slot;

the first entity and the second entity are bell-mouthed and are provided with opposite smaller-diameter ends and larger-diameter ends; the first entity and the second entity are connected with each other at the respective smaller diameter end and gradually separated along the position of the respective smaller diameter end towards the position of the respective larger diameter end to form the open slot; the first entity and the second entity are respectively propped against a car body or a back door fixed with the shell at the larger diameter ends of the first entity and the second entity.

Optionally, the buffer block is integrally connected with the threaded body, and the buffer block is coated on a part of the threaded body; the housing has a first portion for threading into and securing to a vehicle body or back door and a second portion for being located outside of the vehicle body or back door secured thereto; the second part is provided with the sealing ring fixed on the second part, and the second part is also provided with a groove body; a part of the buffer block penetrates into the groove body and is propped against the inner side wall of the groove body; the buffer block can move relative to the groove body under the action of external force, and the distance between the buffer block and the vehicle body or the back door is changed.

Optionally, the groove body is an annular groove, and an inner ring part of the groove body becomes a space for the part of the threaded body to penetrate; the outer ring part of the groove body is a groove into which the buffer block can extend;

The threaded body is provided with a matching groove, the matching groove is provided with an opening structure, the opening structure faces to a car body or a back door fixed with the shell, and a part of the buffer block and a part of the threaded body are arranged on the periphery side of the matching groove; on the groove body, an entity located between the inner ring portion and the outer ring portion is inserted into the mating groove; the threaded body on the outer peripheral side of the fitting groove and the buffer block on the outer peripheral side of the fitting groove penetrate into the outer ring portion; the buffer block is propped against the inner side wall of the outer ring part.

Optionally, a part of the buffer block penetrating into the groove body is provided with a horn mouth structure, a first supporting part and a second supporting part are respectively formed on the end part of the horn mouth structure far away from the sealing ring and the end part close to the sealing ring, and the first supporting part and the second supporting part respectively prop against two opposite inner side walls in the outer ring part; the first abutting part and the second abutting part are used for forming a seal in the outer ring part and isolating the inner ring part from communicating with the outer ring part;

The first abutting portion and the second abutting portion are arranged from far to near in sequence with a car body or a back door fixed by the shell, and compared with the first abutting portion, the second abutting portion is closer to the inner ring portion.

Optionally, the threaded body is reversibly threadedly engaged with the housing to form a releasable engagement with the housing in the axial direction thereof; the threaded body can move relative to the shell under the action of external force together with the buffer block after being released from clamping with the shell; the buffer block can be close to or far away from a car body or a back door fixed with the shell under the action of the external force.

Optionally, the threaded body comprises a head and a stem connected as one piece; the head of the threaded body is positioned outside the car body or the back door fixed with the shell, and the threaded body is connected with the buffer block at the end of the head of the threaded body; the rod part is arranged in the shell in a penetrating way; the second thread part occupies a part of the outer side surface of the rod part;

A groove body is formed in the shell, and a space for the threaded body to extend in is formed in the shell; a first threaded part which can be in threaded fit with the second threaded part is arranged on one inner side wall of the groove body, and the first threaded part occupies one part of the inner side wall; the rod part is configured to have a locking state and an unlocking state, the second threaded part and the first threaded part are in threaded fit or are in unlocking fit by rotating the rod part along the circumferential direction, the rod part is in the locking state when the second threaded part and the first threaded part are in threaded fit, and is in the unlocking state after the second threaded part and the first threaded part are in unlocking fit;

The rod part is clamped with the shell along the axial direction of the rod part in a locking state; the rod part can pass through the shell along the axial direction when in the unlocked state; the rod part can pass through the shell along the axial direction of the rod part, so that the buffer block can be close to or far away from a vehicle body or a back door fixed with the shell under the action of external force.

Optionally, on the outer side surface of the rod portion, a second thread portion is disposed corresponding to a stop protrusion; the stop protrusion is positioned on one side of the second threaded part in the circumferential direction of the rod part; the stop protrusion is used for colliding with the outer edge of the first threaded part along with the rotation of the rod part to limit the single rotation stroke of the rod part.

Optionally, the stop protrusion is formed to protrude toward the stem with respect to the stem; the outer side surface of the rod part is provided with second thread parts and stop protrusions, wherein the number of the second thread parts and the stop protrusions are two; the two second thread parts are arranged at intervals along the circumferential direction of the rod part and are formed by protruding outwards from the rod part towards the rod part; one of the two stop protrusions is located at one side of one second threaded portion in the circumferential direction of the rod portion, and the other of the two stop protrusions is located at one side of the other second threaded portion.

The utility model also provides a vehicle comprising the buffer block assembly as claimed in any one of the above, a back door and a vehicle body; the automobile body includes D post launder, the casing is fixed on D post launder or back door.

In summary, by arranging the sealing ring on the housing, a part of the housing penetrates into the vehicle body or the back door, the housing is fixedly connected with the vehicle body or the back door, and the sealing ring is propped against the vehicle body or the back door fixed with the housing.

The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model, as well as the preferred embodiments thereof, together with the following detailed description of the utility model, given by way of illustration only, together with the accompanying drawings.

Drawings

Fig. 1 is a schematic diagram of a buffer block assembly in an embodiment of the present utility model after being matched with a D-pillar gutter.

FIG. 2 is a cross-sectional view of an embodiment of the utility model after the bumper block assembly is mated with the D-pillar flow channel.

Fig. 3 is a schematic diagram of a seal ring abutting against a D-pillar water channel in an embodiment of the utility model.

FIG. 4 is an exploded view of a buffer block assembly and D-pillar flow channel in an embodiment of the present utility model.

Fig. 5 is a schematic diagram II of the buffer block assembly in the embodiment of the utility model after being matched with the D-pillar water chute.

FIG. 6 is a schematic diagram of a buffer block assembly according to an embodiment of the present utility model (the viewing angle is from top to bottom).

Fig. 7 is a cross-sectional view A-A in an embodiment of the utility model.

Fig. 8 is a B-B cross-sectional view in an embodiment of the utility model.

Fig. 9 is a schematic structural diagram of a housing according to an embodiment of the present utility model.

Fig. 10 is a schematic view of the buffer block and the threaded body after mating in an embodiment of the present utility model.

Fig. 11 is a schematic view showing the relative positional relationship of the stop protrusion, the second threaded portion and the first threaded portion after the threaded body and the housing are engaged (when the lever portion is in the unlocked state) in the embodiment of the present utility model.

Description of the reference numerals

I-D column launder, II-buffer block assembly;

1-buffer block, 11-first supporting part, 12-second supporting part, 13-stop step, 2-threaded body, 21-head, 211-mating groove, 22-rod part, 3-shell, 31-guide part, 32-clamping foot, 33-groove body, 331-inner ring part, 3311-first threaded part, 332-outer ring part, 4-sealing ring, 41-first entity, 42-second entity, 5-mounting hole, 51-first penetrating part, 52-second penetrating part, 6-second threaded part and 7-stop bulge.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," "coupled," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. In some cases, when something is expressed as being fixedly connected to something, a particular connection may also include an integral connection. The specific meaning of the terms described above will be understood to those of ordinary skill in the art in a specific context.

The terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," and the like herein refer to an orientation or positional relationship based on that shown in the drawings, or that is conventionally put in place when the inventive product is used, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the utility model.

The terms "comprising," "including," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a list of elements is included, and that other elements not expressly listed may be included.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "exemplary," "specific examples," "further," "optionally," "more detailed description," "preferably," "still further," "still include" or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

It should be noted that, in the description of the present application, it should be understood that the orientation or positional relationship indicated by the term "end" or the like is based on the orientation or positional relationship shown in the drawings, only for convenience in describing the present application and simplifying the description, and does not indicate or imply that the components referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

As shown in fig. 1, the present embodiment provides a vehicle in which a bumper block assembly II is fixed to a D-pillar gutter I in the rear portion of the vehicle body. When a tailgate (not shown) of the vehicle is closed in place, the tailgate is configured to contact, be restrained, buffered and supported by the bumper block assembly II.

Referring to fig. 1 and 2 (for convenience of description, the up-down direction is shown in fig. 2), the buffer block assembly II in the present embodiment includes a buffer block 1, a threaded body 2, a housing 3, and a sealing ring 4, wherein the housing 3 is fixed on the D-pillar water flowing channel I, and the housing 3 has a portion penetrating into the D-pillar water flowing channel I and a portion located outside the D-pillar water flowing channel I; a portion of the threaded body 2 movably protrudes into the housing 3; the buffer block 1 is a rubber product and is a part of the buffer block assembly II which is directly contacted with the back door and is used for limiting, buffering and supporting the back door; the buffer block 1 is fixedly connected with the threaded body 2, and part of the buffer block extends into the shell 3 positioned outside the D column water flowing groove and is propped against the shell 3, and static friction force exists between the buffer block and the shell 3; the buffer block 1 can move together with the threaded body 2 relative to the shell (3) under the action of external force, so that the distance between the buffer block 1 and the D column water flowing groove I is changed;

In the embodiment, the sealing ring 4 is fixed on the casing 3 and is sequentially arranged from near to far from the D column water flowing groove with the buffer block 1; the sealing ring 4 is a ring-shaped piece and is provided with an inner ring area penetrating through the sealing ring 4 and an outer ring area which is solid; the shell 3 is arranged in the inner ring area of the sealing ring 4 in a penetrating way, meanwhile, the outer ring area of the sealing ring 4 is a sealing surface propped against the D column flow channel I, the outer ring area of the sealing ring 4 is provided with an opening groove with an opening facing the D column flow channel I, and by virtue of the design of the opening groove, the sealing ring 4 forms two reliable seals on the D column flow channel I.

Based on the above description, the buffer block assembly provided in this embodiment can form a sealing structure with good and reliable sealing performance with the vehicle body compared with the prior art by not forming a direct threaded engagement relationship between the buffer block 1 and the D-pillar flow channel I, but making the sealing ring 4 abut against the D-pillar flow channel I to form a seal.

Further, since the opening groove is formed in the sealing surface (outer ring area) of the sealing ring 4, after the buffer block assembly II and the D column water flowing groove I are assembled, the sealing ring 4 can form a double-layer sealing structure on the D column water flowing groove I by means of the opening groove on the outer peripheral side of the shell 3, so that the probability of failure problems of the sealing structure is greatly reduced, and the occurrence probability of water leakage problems is reduced.

For the above-described vehicle, the following are more detailed exemplary settings:

With continued reference to fig. 2 and 3, the sealing ring 4 in the present embodiment is sleeved on the housing 3, and includes a first entity 41 and a second entity 42 that are integrally connected; the first body 41 and the second body 42 are bell-mouthed, opposite upper and lower ends are disposed on the first body 41 and the second body 42, and the diameters of the lower ends of the first body 41 and the second body 42 are larger than the diameters of the upper ends of the first body and the second body. For convenience, the lower end is a larger diameter end, and the upper end is a smaller diameter end, and in this embodiment, the first entity 41 and the second entity 42 are integrally connected to each other at the respective smaller diameter ends, and have a gradually separated form from top to bottom (i.e. along the positions of the respective smaller diameter ends toward the positions of the respective larger diameter ends).

In this embodiment, the first entity 41 and the second entity 42 are respectively abutted against the D column flow channel I to form the design that the outer ring region of the seal ring 4 is a seal surface; in addition, the first entity 41 encloses the inner ring region, and the second entity 42 and the first entity 41 together form the outer ring region having the open slot.

Thus, as shown in fig. 3 and fig. 4 (for convenience of illustration, the sealing ring 4 is filled in fig. 3), after the buffer block assembly II and the D column water flow channel I are assembled, a part of the housing 3 will penetrate to the inner side of the D column water flow channel I, and the sealing ring 4 is abutted against the D column water flow channel I, so that a two-layer sealing structure is formed between the buffer block assembly II and the D column water flow channel I, and further, the probability of water leakage phenomenon of the vehicle (at the assembly position of the buffer block assembly II and the D column water flow channel I) is low in the use process is ensured.

The flare design of the first entity 41 and the second entity 42 also ensures that the first entity 41 and the second entity 42 are in close contact with the D-pillar water flow channel I, and the sealing ring 4 is not easy to cause poor installation of the sealing surface of the sealing ring which is rolled up (or tilted up) towards the center (or the inner side) of the sealing ring.

With continued reference to fig. 3 and 4, in order to ensure the assembling stability of the sealing ring 4 and the housing 3, the sealing ring 4 and the housing 3 in this embodiment are integrally connected by insert molding. It will be appreciated that in a possible embodiment, the housing 3 may be a plastic product and the sealing ring 4 may be a rubber product.

It will be appreciated that in possible embodiments either the sealing ring 4 or the housing 3 may be used as an insert in an insert injection moulding, depending on the specific requirements of the person skilled in the art. It will be appreciated that in a possible embodiment, the housing 3 may also be fixed to the sealing ring 4 by means of adhesive.

With continued reference to fig. 4 and 5, the housing 3 in the present embodiment is illustratively a cylindrical body; in order to conveniently fix the shell 3 on the D-pillar water flowing groove I, a guide part 31 and a clamping foot 32 are integrally formed on the shell 3 below the assembly position of the shell 3 and the sealing ring 4 in the embodiment; wherein the clamping feet 32 and the guiding parts 31 are alternately arranged along the circumferential direction of the shell 3 at intervals, the clamping feet 32 are used for enabling the shell 3 to form clamping connection with the D column water flowing groove I, and the guiding parts 31 are used for guiding when the shell 3 penetrates into the D column water flowing groove I; in the present embodiment, the number of the guide portions 31 and the clamping pins 32 is two, but it is understood that the number of the guide portions 31 and the clamping pins 32 is a flexible design item.

In the above-mentioned embodiment, corresponding to the arrangement of the clamping leg 32 and the guiding portion 31, the D-pillar gutter I is provided with an installation hole 5, and the installation hole 5 is approximately four-petal-shaped and includes two first through portions 51 and two second through portions 52, wherein the first through portions 51 are arranged in one-to-one correspondence with the clamping leg 32, and the second through portions 52 are arranged in one-to-one correspondence with the guiding portion 31.

With continued reference to fig. 4 and 5, the guide portion 31 in the present embodiment is a U-shaped rib with an upward opening, and the middle position of the guide portion 31 has a V-shaped structure with an opening facing the housing 3 (see the arrow indication in fig. 4); it will be appreciated that this V-shaped configuration is advantageous in achieving the guiding of the housing 3 by the guide 31. Please see the buffer block assembly II from top to bottom along the arrow in fig. 5, so as to obtain a top view of the buffer block assembly II shown in fig. 6, and see fig. 6 for a cross-sectional view A-A of the buffer block assembly II shown in fig. 7, where the V-shaped structure is clearly shown in fig. 7.

Referring to fig. 8, the clip leg 32 in the present embodiment is configured to be elastically deformable; during the process of penetrating the buffer block assembly II into the D-pillar water flowing groove I, the clamping pin 32 is configured to be capable of being pressed by the mounting hole 5 (see fig. 4) to generate adaptive elastic deformation, and to apply a reaction force to the hole edge of the mounting hole 5 at any time.

In more detail, the clip legs 32 are formed to extend obliquely from the bottom to the top from the outer side surface of the housing 3; the lower end of the clamping pin 32 is connected with the shell 3 into a whole, and gradually separated from the shell 3 upwards from the lower end, and finally the upper end of the clamping pin is arranged at intervals with the shell 3; meanwhile, the clamping leg 32 has the structural characteristics of thicker middle part and thinner upper and lower ends, and the upper surface of the clamping leg is an inclined plane; in this way, in the assembly process of the shell 3 and the D column water flowing groove I, as shown in fig. 2, after the thickest middle part of the clamping leg 32 passes through the mounting hole 5, the clamping leg 32 is sprung open under the drive of elastic restoring force, namely, can be propped against the mounting hole 5 at the inclined plane of the clamping leg 32; at this time, the thickest middle part of the clamping leg 32 will be clamped under the mounting hole 5; thus, the housing 3 is fixed to the D-pillar water flow channel I by the engagement of the engagement legs 32. The clamping foot 32 in the embodiment is arranged to enable the buffer block assembly II to be fixed on the D column water flowing groove I through pressing, and the buffer block assembly II has the advantages of being simple and convenient to install.

In a possible embodiment, a recess may be formed on the inclined surface of the clip leg 32, and the recess may be engaged (or clamped) with the hole edge of the mounting hole 5, so that the connection reliability between the clip leg 32 and the housing 3 may be increased.

In a possible embodiment, the clamping foot 32 can completely pass through the mounting hole 5 to be regarded as that the shell 3 is clamped with the D column water flowing groove I; at this time, the mounting hole 5 is a blind hole for accommodating part of the housing 3, which is formed in the D-pillar gutter I of the vehicle body.

It will be appreciated that the aforementioned clip 32 may be replaced with other clip forms commonly known in the art, as desired by those skilled in the art.

As shown in fig. 8 and 9, the part of the casing 3 penetrating into the D-column flow channel I is a first part, and the part located outside the D-column flow channel I is a second part; in this embodiment, the sealing ring 4 is sleeved on the second portion of the housing 3, and a ring-shaped groove 33 is further disposed at an end of the second portion away from the end where the sealing ring 4 is located; the groove 33 is used to cooperate with the buffer block 1 to realize the design that the buffer block 1 is partially located in the housing 3.

With the above in mind, as shown in fig. 2 and 4, the buffer block 1 is illustratively a hat-shaped profiled body, and the threaded body 2 is illustratively an integral molding of about T-shape; the threaded body 2 comprises a head 21 of larger diameter and a cylindrical stem 22. As shown in fig. 10, the buffer block 1 and the threaded body 2 in this embodiment are integrally connected by insert molding (similar to the case 3 and the seal ring 4, either one of the buffer block 1 and the threaded body 2 can be used as an insert in insert molding); the cushion block 1 is integrally connected to the head 21 of the threaded body 2, and covers most of the head 21.

With continued turning back to fig. 2, in this embodiment, the rod 22 with the threaded body 2 is inserted into the housing 3, the upper end of the buffer block 1 is located outside the slot 33, and the lower end penetrates into the slot 33; the lower end of the buffer block 1 is propped against the groove body 33, and static friction force which can be overcome by external force exists between the buffer block and the groove body 33.

Illustratively, the groove body 33 is an annular groove having an inner ring portion 331 and an outer ring portion 332, wherein the inner ring portion 331 penetrates the housing 3 to form a cylindrical passage through which the threaded body 2 penetrates, and the outer ring portion 332 is an upwardly open groove for engagement with the buffer block 1.

Corresponding to the groove body 33, the head 21 of the threaded body 2 is provided with a circle of matching grooves 211 with downward openings; after the threaded body 2, the buffer block 1 and the housing 3 are assembled, the entity located between the inner ring portion 331 and the outer ring portion 332 on the housing 3 is inserted into the fitting groove 211, and meanwhile the buffer block 1 located on the outer peripheral side of the fitting groove 211 and the threaded body 2 located on the outer peripheral side of the fitting groove 211 penetrate into the outer ring portion 332, and the buffer block 1 forms a structure propped against the groove body 33.

In this embodiment, the threaded body 2 extending into the outer ring portion 332 belongs to a portion surrounded by the buffer block 1; it can thus be understood that the buffer block 1 in the outer ring portion 332 is in a state of being sandwiched between the threaded body 2 and the housing 3; by such a design, the connection reliability between the damper block 1 and the housing 3 can be ensured to some extent.

In view of the above, a part of the buffer block 1 penetrating the groove body 33 (the outer ring portion 332) has a bell mouth structure, and a large diameter end portion of the bell mouth portion is up, a small diameter end portion is down, and the large diameter end portion and the small diameter end portion are sequentially arranged from far to near from the seal ring 4; the large diameter end of the bell mouth portion is used as a first abutting portion 11, the small diameter end is used as a second abutting portion 12, and the buffer block 1 is respectively in abutting relation with two opposite inner side walls of the outer ring portion 332 at the first abutting portion 11 and the second abutting portion 12, so that a seal is formed in the outer ring portion 332, and communication between the inner ring portion 331 and the outer ring portion 332 is blocked.

As can be understood, when the D-pillar water channel I passes through, based on the designs of the first abutting portion 11 and the second abutting portion 12, water cannot easily flow into the bottom of the outer ring portion 332 and the inner ring portion 331 between the buffer block 1 and the housing 3, and cannot easily enter the inner side of the D-pillar water channel I through the inner ring portion 331; the design combines the design of the sealing ring 4, and can further ensure the sealing reliability of the buffer block assembly II provided by the embodiment.

With continued reference to fig. 2, since the threaded body 2 is configured to move with the buffer block 1 relative to the housing 3 under the action of an external force as described above, it can be understood based on the fixed relationship between the buffer block 1 and the threaded body 2 that the buffer block 1 and the threaded body 2 can move up and down together under the action of the external force when the external force includes a force in the up-and-down direction; at this time, the buffer block 1 moves up and down in the tank body 33 relative to the tank body 33, and further changes the distance between the buffer block and the D column water flowing groove I, so as to adjust the limit and matching effects of the buffer block on the back door.

Therefore, when the buffer block assembly II is required to be respectively applied to a plurality of vehicle types with different distances between the back door and the D column flow channel I, the buffer block assembly II can be applicable to the plurality of vehicle types by adjusting the distance between the buffer block 1 and the D column flow channel I; furthermore, the buffer block assembly II provided by the embodiment has the advantage of wide adaptability.

With continued reference to fig. 2 and 4, the threaded body 2 in this embodiment is configured to: the threaded body 2 can be reversibly in threaded fit with the housing 3, so that releasable clamping connection is formed with the housing 3 in the axial direction of the threaded body; the threaded body 2 can move together with the buffer block 1 relative to the shell 3 under the action of external force after being released from clamping with the shell 3; in addition, the buffer block 1 can be moved toward or away from the D-pillar water flow channel I fixed to the housing 3 by the external force. In this embodiment, the design is such as to ensure: based on the threaded engagement of the threaded body 2 with the housing 3, the connection reliability between the threaded body 2 and the housing 3 is ensured; based on the unthreaded fit of the threaded body 2 and the housing 3, the threaded body 2 can move up and down together with the buffer block 1, thereby facilitating the buffer block 1 to adjust its position.

With continued reference to fig. 6 and 7, in order to achieve the above design, in this embodiment, two first screw thread portions 3311 are provided on the inner sidewall of the inner ring portion 331; the two first screw portions 3311 each occupy a portion of the inner sidewall at a distance from each other. To further illustrate the configuration of the first threaded portion 3311, please continue to refer to fig. 6 and 9 (fig. 9 illustrates filling of the seal ring 4); as can be seen from the drawing, the first screw portion 3311 is formed to protrude from the inner side wall of the inner ring portion 331 toward the center of the housing 3; the first screw part 3311 is seen from the top down, and the first screw part 3311 has an outer contour like an arc.

As described above, the design corresponding to the first threaded portion 3311 in this embodiment includes: the shaft 22 of the threaded body 2 is configured to have a locked state and an unlocked state, the locked state and the unlocked state of the shaft 22 corresponding to the threaded engagement and the disengaged threaded engagement of the threaded body 2 and the housing 3, respectively; the locked state of the lever portion 22 is achieved by screw-engaging with the first screw portion 3311, and the unlocked state of the lever portion 22 is achieved by screw-disengaging with the first screw portion 3311.

In more detail, as shown in fig. 10, the second screw parts 6 are exemplarily provided in two numbers on the outer side surfaces of the cylindrical rod part 22, respectively; the two second screw thread portions 6 are integrally formed with the rod portion 22, and are formed to protrude outward from the cylindrical rod portion 22 toward the rod portion 22, and are disposed at intervals along the circumferential direction of the rod portion 22, and are respectively in screw-fit with the two first screw thread portions 3311. Similar to the structure of the first screw thread part 3311, the second screw thread part 6 is seen from the top down, and the second screw thread part 6 also has an arc-like outer contour; furthermore, the stem 22 and the second threaded portion 6, which are integrally connected as seen from below, are connected to form a candy-like outer contour on which two notches (see arrow indication) are naturally formed between the two second threaded portions 6.

Referring back to fig. 9 and 10 based on the above description, the inner ring portion 331 in the present embodiment is configured to also have a candy-like outer contour to fit the shaft portion 22 and a part of the head portion 21 of the threaded body 2 (see fig. 2). It will be appreciated that, to ensure the insertion of the threaded body 2, the inner ring portion 331 is slightly larger than the threaded body 2 by one turn, and the two first screw portions 3311 are located at the intermediate position of the inner ring portion 331; as shown in fig. 11, during the process of placing the threaded body 2 into the inner ring portion 331, two second threaded portions 6 respectively extend into two end portions of the inner ring portion 331, and the first threaded portions 3311 and the second threaded portions 6 are staggered from each other, and the notch formed between the second threaded portions 6 is used for avoiding the first threaded portions 3311, so as to ensure that the placement of the threaded body 2 is not affected by the first threaded portions 3311.

In this way, in the process of installing the buffer block assembly II, when the installer considers that the threaded body 2 is penetrated in place, that is, when the height of the buffer block 1 exposed out of the housing 3 meets the design requirement, the installer only needs to hold the buffer block 1 to rotate along the circumferential direction of the buffer block 1 (the circumferential direction of the rod portion 22), so as to drive the second threaded portion 6 to screw into the first threaded portion 3311, so that the threaded body 2 and the housing 3 form a clamping connection in the up-down direction in a threaded fit manner, the rod portion 22 enters a locking state, and the distance between the buffer block 1 and the D column flow channel I is fixed; subsequently, when the height of the buffer block 1 needs to be adjusted, the installer reversely rotates the buffer block 1, so that the second threaded portion 6 can withdraw from the first threaded portion 3311, and the rod portion 22 enters the unlocked state; at this time, the rod portion 22 may pass through the housing 3 in the axial direction thereof, and the buffer block 1 may be moved closer to or farther from the D-pillar water discharge groove I to adjust the distance between itself and the D-pillar water discharge groove I.

It will be appreciated that during initial placement of the threaded body 2 into the inner ring portion 331, the stem 22 during this process may be considered to be in an unlocked state due to the misalignment of the first thread portion 3311 and the second thread portion 6.

It is understood that the number of the second screw thread portions 6 and the first screw thread portions 3311 may be flexibly set by those skilled in the art, for example, the number of the second screw thread portions 6 and the first screw thread portions 3311 may be one, three or more.

For example, in order to ensure that the buffer block 1 has a certain maximum stroke when rotating unidirectionally, so that an installer cannot know to what extent the buffer block 1 is rotated to complete the locking or unlocking operation of the lever portion 22, referring back to fig. 10 and 11, in this embodiment, a stop protrusion 7 is further provided on an outer side surface of the lever portion 22 (the position of the stop protrusion 7 is indicated by a dashed arrow in fig. 11); the stop protrusions 7 are arranged in one-to-one correspondence with the second thread parts 6.

Taking one of the two second screw thread parts 6 as an example, in the circumferential direction of the rod part 22, a stop protrusion 7 provided corresponding to the second screw thread part 6 is located at one side of the second screw thread part 6; the stop protrusion 7 is used to collide with the outer edge of the first threaded portion 3311 along with the rotation of the lever portion 22, so as to limit the single rotation stroke of the lever portion 22, so that the installer can obviously perceive that the lever portion 22 has been rotated into place after the one-way rotation until the stop protrusion 7 collides with the first threaded portion 3311, and the lever portion 22 has been brought into the unlocked state from the locked state (or has been brought into the locked state from the unlocked state).

It can be understood that, since the stop protrusions 7 in the present embodiment are provided in one-to-one correspondence with the second screw portions 6, the number of the stop protrusions 7 is two in the present embodiment; in the circumferential direction of the shaft portion 22, one of the two stop protrusions 7 is located on one side of one second screw portion 6, and the other of the two stop protrusions 7 is located on one side of the other second screw portion 6.

It will be appreciated that the number of stop projections 7 provided is also flexible to the skilled person, similar to the provision of the second threaded portion 6. Furthermore, in a possible embodiment, the second thread parts 6 may also be arranged not in a one-to-one correspondence with the stop projections 7; for example, based on the foregoing design of the present embodiment, a stop protrusion 7 may be reduced; at this time, on the outer side surface of the lever portion 22, only one second screw portion 6 is provided corresponding to one stopper protrusion 7.

Referring back to fig. 2, in this embodiment, a diameter change area is provided on the buffer block 1 to limit the maximum stroke of the downward movement of the buffer block 1, and the diameter change area makes the buffer block 1 have a shape that the diameter of the upper end is larger than that of the lower end; at the same time, a stop step 13 of Z-shape is naturally formed at this diameter change of the buffer block 1, the stop step 13 being located at the upper side of the housing 3, the stop step 13 being configured for colliding with the upper surface of the housing 3, thereby limiting the downward stroke of the buffer block 1.

It should be noted that the buffer block assembly II provided by the present utility model is not limited to being installed on the D column flow channel I; in a possible embodiment, the bumper assembly II may be mounted on other portions of the vehicle body (e.g., near the D-pillar gutter I) according to the specific needs of those skilled in the art.

In a possible embodiment, the damper assembly II may also be mounted directly on the tailgate. As such, as can be understood in connection with the above-described embodiments, when the bumper block assembly II is mounted on the back door to cushion the back door when it is closed, the bumper block assembly II has a portion of the housing 3 penetrating into the back door, the bumper block 1 is located on a side of the back door (when closed) for facing the inside of the vehicle, and the like; when the back door is closed, the buffer block 1 is in contact with a vehicle body (for example, a D column water flowing groove I), so that the back door is limited, supported and buffered. It will be appreciated that all of the above arrangements of the utility model are also applicable to a bumper assembly II mounted on a tailgate.

In summary, by arranging the seal ring 4 on the housing 3, a part of the housing 3 is penetrated into the vehicle body or the back door, the housing 3 is fixedly connected with the vehicle body or the back door, and the seal ring 4 is abutted against the vehicle body or the back door fixed with the housing 3.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. The buffer block assembly is characterized by comprising a buffer block (1), a threaded body (2), a shell (3) and a sealing ring (4); the shell (3) is used for being fixed on a vehicle body or a back door; a part of the threaded body (2) is movably inserted into the housing (3); the buffer block (1) is used for buffering the back door, the buffer block (1) is fixedly connected with the threaded body (2), and part of the buffer block (1) extends into the shell (3) to be propped against the shell (3); the buffer block (1) can move together with the threaded body (2) relative to the shell (3) under the action of external force, so that the distance between the buffer block (1) and the vehicle body or the back door is changed;

The sealing ring (4) and the buffer block (1) are sequentially arranged on a car body or a back door which is fixed with the shell (3) from near to far; the sealing ring (4) is fixed on the shell (3); the sealing ring (4) is annular and is provided with an inner ring area penetrating through the sealing ring and an outer ring area which is solid, the shell (3) is arranged in the inner ring area in a penetrating way, and the outer ring area is used for propping against a car body or a back door fixed with the shell (3) to form a sealing surface; the outer ring area is provided with an open slot, the opening of the open slot faces to a car body or a back door fixed with the shell (3), and the outer ring area forms a double-layer sealing structure on the car body or the back door fixed with the shell (3) through the open slot.

2. Buffer block assembly according to claim 1, characterized in that the sealing ring (4) comprises a first entity (41) and a second entity (42) connected in one piece; -the first entity (41) encloses the inner ring zone; -said second entity (42) and said first entity (41) together forming said outer ring zone with said open slot;

The first body (41) and the second body (42) are bell-mouthed and have opposite smaller diameter ends and larger diameter ends; the first entity (41) and the second entity (42) are connected with each other at the smaller diameter end of each entity, and gradually separate along the position of the smaller diameter end of each entity towards the position of the larger diameter end of each entity to form the open slot; the first body (41) and the second body (42) are respectively abutted against a vehicle body or a back door fixed with the shell (3) at the larger diameter ends of the first body and the second body.

3. Buffer block assembly according to claim 1, characterized in that the buffer block (1) is integral with the threaded body (2), the buffer block (1) being coated on a portion of the threaded body (2); the housing (3) has a first portion for penetrating into a vehicle body or a tailgate secured thereto and a second portion for being located outside the vehicle body or tailgate secured thereto; the second part is provided with the sealing ring (4) fixed on the second part, and the second part is also provided with a groove body (33); part of the buffer block (1) penetrates into the groove body (33) and is propped against the inner side wall of the groove body (33); the buffer block (1) can move relative to the groove body (33) under the action of external force, and the distance between the buffer block and the vehicle body or the back door is changed.

4. A buffer block assembly according to claim 3, wherein the groove body (33) is an annular groove, and an inner ring portion (331) of the groove body (33) becomes a space for the portion of the threaded body (2) to penetrate; the outer ring part (332) of the groove body (33) is a groove into which the buffer block (1) can extend;

The threaded body (2) is provided with a matching groove (211), the matching groove (211) is provided with an opening structure, the opening structure faces to a car body or a back door fixed with the shell (3), and a part of the buffer block (1) and a part of the threaded body (2) are arranged on the periphery side of the matching groove (211); -on the groove body (33), a solid located between the inner ring portion (331) and the outer ring portion (332) is inserted into the mating groove (211); the threaded body (2) on the outer peripheral side of the fitting groove (211), and the buffer block (1) on the outer peripheral side of the fitting groove (211) are each threaded into the outer ring portion (332); the buffer block (1) is abutted against the inner side wall of the outer ring part (332).

5. The buffer block assembly according to claim 4, wherein a portion of the buffer block (1) penetrating into the groove body (33) has a bell-mouth structure, which forms a first abutment (11) and a second abutment (12) on an end thereof remote from the seal ring (4) and an end thereof close to the seal ring (4), respectively, the first abutment (11) and the second abutment (12) being respectively abutted against two opposite inner side walls in the outer ring portion (332); the first abutting part (11) and the second abutting part (12) are used for forming a seal in the outer ring part (332) and isolating the inner ring part (331) from communicating with the outer ring part (332);

The first abutting part (11) and the second abutting part (12) are arranged in sequence from far to near at a distance from a car body or a back door fixed with the shell (3), and the second abutting part (12) is closer to the inner ring part (331) than the first abutting part (11).

6. A buffer block assembly according to claim 1, characterized in that the threaded body (2) is reversibly screwed with the housing (3) so as to form a releasable snap-fit with the housing (3) in its own axial direction; the threaded body (2) can move relative to the shell (3) together with the buffer block (1) under the action of external force after being released from clamping with the shell (3); the buffer block (1) can be close to or far away from a car body or a back door fixed with the shell (3) under the action of the external force.

7. A bumper assembly according to claim 6, wherein the threaded body (2) comprises a head portion (21) and a stem portion (22) integrally connected; the head of the threaded body (2) is positioned outside a car body or a back door fixed with the shell (3), and the threaded body (2) is connected with the buffer block (1) at the end of the head (21) of the threaded body; the rod part (22) is penetrated in the shell (3); the rod part (22) is provided with a second thread part (6), and the second thread part (6) occupies a part of the outer side surface of the rod part (22);

A groove body (33) is formed in the shell (3), and a space for the threaded body (2) to extend into is formed in the shell (3) by the groove body (33); a first thread part (3311) which can be in threaded fit with the second thread part (6) is arranged on one inner side wall of the groove body (33), and the first thread part (3311) occupies one part of the inner side wall; the rod part (22) is configured to have a locking state and an unlocking state, the rod part (22) can enable the second threaded part (6) to be in threaded fit with the first threaded part (3311) or be in unlocking threaded fit along the circumferential direction, the rod part (22) is in the locking state when the second threaded part (6) is in threaded fit with the first threaded part (3311), and is in the unlocking state after the second threaded part (6) is in unlocking threaded fit with the first threaded part (3311);

The rod part (22) is clamped with the shell (3) along the axial direction when in a locking state; the shaft (22) can pass through the housing (3) along the axial direction thereof in the non-locking state; the rod part (22) can pass through the shell (3) along the axial direction of the rod part, so that the buffer block (1) can be close to or far away from a vehicle body or a back door fixed with the shell (3) under the action of external force.

8. A bumper assembly according to claim 7, characterized in that on the outer side surface of the stem (22), a second threaded portion (6) is provided in correspondence with a stop projection (7); the stop protrusion (7) is located on one side of the second threaded portion (6) in the circumferential direction of the rod portion (22); the stop protrusion (7) is used for colliding with the outer edge of the first thread part (3311) along with the rotation of the rod part (22) to limit the single rotation stroke of the rod part (22).

9. The cushion block assembly according to claim 8, wherein the stopper protrusion (7) is formed protruding toward the lever portion (22) with respect to the lever portion (22); the outer side surface of the rod part (22) is provided with second threaded parts (6) and stop bulges (7) with two numbers; the two second thread parts (6) are arranged at intervals along the circumferential direction of the rod part (22) and are formed by protruding outwards from the rod part (22) towards the rod part (22); in the circumferential direction of the shaft portion (22), one of the two stop protrusions (7) is located on one side of one second threaded portion (6), and the other of the two stop protrusions (7) is located on one side of the other second threaded portion (6).

10. A vehicle comprising the bumper assembly of any of claims 1-9, further comprising a tailgate and a body; the vehicle body comprises a D column water flowing groove, and the shell (3) is fixed on the D column water flowing groove or the back door.