阅读说明：本技术 一种用于车辆的后背门缓冲块及车辆 (A back door buffer block and vehicle for vehicle ) 是由 匡敏 刘万黎 丁宝华 何金龙 于 2020-06-05 设计创作，主要内容包括：本发明提供了一种用于车辆的后背门缓冲块及车辆。该后背门缓冲块包括：基座,包括基座本体和围绕基座本体外周面的橡胶圈,基座本体具有圆环形内腔,圆环形内腔的内表面具有环绕其至少半圈且少于一圈的第一螺纹；螺杆组件,包括螺杆和位于螺杆顶端的橡胶帽,螺杆设置在圆环形内腔内,螺杆的外表面具有环绕其至多半圈的第二螺纹；在调整后背门的间隙面差时,基座的第一螺纹和第二螺纹错开设置,以在后背门完全关闭时,螺杆无阻碍地下滑直至橡胶帽的底端面与橡胶圈的顶端面完全贴合,在打开后背门后,旋转螺杆组件至第一螺纹与第二螺纹啮合,使橡胶帽的底端面与橡胶圈的顶端面分离预设距离。本发明方案调整后背门间隙面差时操作便捷且容易控制。(The invention provides a back door buffer block for a vehicle and the vehicle. This back door buffer block includes: the base comprises a base body and a rubber ring surrounding the peripheral surface of the base body, the base body is provided with a circular inner cavity, and the inner surface of the circular inner cavity is provided with a first thread surrounding at least half of the circular inner cavity and less than one circle of the circular inner cavity; the screw assembly comprises a screw and a rubber cap positioned at the top end of the screw, the screw is arranged in the annular inner cavity, and the outer surface of the screw is provided with a second thread which surrounds the screw for at most half of a turn; when the clearance surface difference of the back door is adjusted, the first threads and the second threads of the base are arranged in a staggered mode, so that when the back door is completely closed, the screw rod slides underground without hindrance until the bottom end surface of the rubber cap is completely attached to the top end surface of the rubber ring, and after the back door is opened, the screw rod assembly is rotated until the first threads are meshed with the second threads, and the bottom end surface of the rubber cap is separated from the top end surface of the rubber ring by a preset distance. The back door clearance surface difference adjusting device is convenient to operate and easy to control when adjusting the back door clearance surface difference.)

1. A tailgate bumper for a vehicle, comprising:

the base is arranged on a sheet metal part of a back door of a vehicle and comprises a base body and a rubber ring arranged around the peripheral surface of the base body, the base body is provided with an annular inner cavity, and the inner surface of the annular inner cavity is provided with a first thread which surrounds at least half circle and less than one circle of the annular inner cavity;

the screw assembly comprises a screw and a rubber cap positioned at the top end of the screw, the screw is arranged in the annular inner cavity in a pluggable manner, and the outer surface of the screw is provided with a second thread which surrounds the screw for at most half of a turn;

when the clearance surface difference of the back door of the vehicle is adjusted, the first threads of the base and the second threads of the screw rod are arranged in a staggered mode, so that when the back door is completely closed, the screw rod slides downwards along the circular inner cavity without hindrance until the bottom end face of the rubber cap is completely attached to the top end face of the rubber ring, and after the back door is opened, the screw rod assembly is rotated until the first threads are engaged with the second threads, and the bottom end face of the rubber cap is separated from the top end face of the rubber ring by a preset distance.

2. The back door bumper of claim 1, wherein the first thread wraps half way around the inner surface of the circular inner cavity;

the second thread wraps half way around the outer surface of the screw.

3. The back door bumper of claim 2, wherein the first thread is continuous about half of the inner surface of the circular inner cavity;

the second thread is continuous around half of the outer surface of the screw.

4. The back door bumper as defined in claim 2, wherein the first threads comprise a plurality of first sub-threads of identical configuration and size spaced around the inner surface of the circular inner cavity;

the second thread is composed of a plurality of second sub-threads with the same structure and size, and the plurality of second sub-threads are wound on the outer surface of the screw rod at intervals.

5. The back door bumper of claim 4, wherein the number of first sub-threads is the same as the number of second sub-threads.

6. A back door bumper according to any of claims 1-5, wherein when rotating the screw assembly until the first thread engages the second thread, the screw assembly is rotated such that the bottom end face of the rubber cap is separated from the top end face of the rubber ring by a predetermined distance L,

β＝(360°*L)/(2πr*sinθ)

wherein r is a radius of a bottom surface of a cylinder formed by the outermost ring when the first thread and the second thread are engaged together, θ is an angle at which the first thread and the second thread are inclined, and β is an angle at which the screw assembly needs to be rotated.

7. The back door bumper as defined in claim 6, wherein the rubber cap is marked with graduations, and the outer circumferential surface of the base is marked with zero degree angle graduations;

optionally, the periphery of base is marked with the scale, mark zero degree angle scale mark on the rubber cap.

8. The back door bumper as defined in claim 7, wherein the screw has a limiting rib extending from one end of the second thread to at least the other end of the second thread along an axial direction of the screw, and the limiting rib is located at a region of the screw where the second thread is not distributed.

9. A back door cushion block according to any of claims 1-5, 7 and 8, wherein the first thread extends a first predetermined length in a longitudinal direction perpendicular to a radial direction of the circular ring shaped cavity and the second thread extends a second predetermined length in an axial direction of the screw;

the first preset length is greater than or equal to the second preset length.

10. A vehicle comprising a back door bumper as defined in any one of claims 1-9.

Technical Field

The invention relates to the technical field of vehicle parts, in particular to a back door buffer block for a vehicle and the vehicle.

Background

The back door is one of important automobile body parts of an automobile with a compartment, and a back door buffer structure is arranged under the common condition to prevent the back door from scraping or colliding with the automobile body due to the fact that the road jolts and shakes in the driving process. At present, people have higher and higher quality requirements on the automobile back door, and the back door is required to have good reliability and beautiful appearance. In the driving process, the backdoor buffer block can provide buffer performance, the backdoor does not interfere with other parts of the vehicle body when the backdoor is closed or jolt road conditions, stress and noise are reduced, and then the appearance gap between the backdoor and the vehicle body needs to be adjusted by means of the buffer block.

Traditional back door buffer block is through the height that actual need adjusted the buffer block, and then adjusts buffer block and back door clearance. Due to structural limitation, when the back door buffer block is installed and adjusted, the back door buffer block is roughly adjusted to a certain position during installation, and when the back door clearance surface difference is adjusted, the buffer block is rotated and paper is drawn to ensure that the buffer block is attached to a matching surface. The structure needs long working hours for production, and the interference amount is not well controlled.

Disclosure of Invention

The invention aims to solve the technical problems that the adjustment of the clearance surface of a back door is complicated and is difficult to control due to the structural limitation of a back door buffer block in the prior art.

A further object of the present invention is to solve the technical problems of the prior art, such as poor accuracy in adjusting the back clearance surface difference and the need to redesign the back door buffer block during vehicle model change.

In particular, the present invention provides a back door bumper for a vehicle, comprising:

the base is arranged on a sheet metal part of a back door of a vehicle and comprises a base body and a rubber ring arranged around the peripheral surface of the base body, the base body is provided with an annular inner cavity, and the inner surface of the annular inner cavity is provided with a first thread which surrounds at least half circle and less than one circle of the annular inner cavity;

the screw assembly comprises a screw and a rubber cap positioned at the top end of the screw, the screw is arranged in the annular inner cavity in a pluggable manner, and the outer surface of the screw is provided with a second thread which surrounds the screw for at most half of a turn;

when the clearance surface difference of the back door of the vehicle is adjusted, the first threads of the base and the second threads of the screw rod are arranged in a staggered mode, so that when the back door is completely closed, the screw rod slides downwards along the circular inner cavity without hindrance until the bottom end face of the rubber cap is completely attached to the top end face of the rubber ring, and after the back door is opened, the screw rod assembly is rotated until the first threads are engaged with the second threads, and the bottom end face of the rubber cap is separated from the top end face of the rubber ring by a preset distance.

Optionally, the first thread wraps half way around the inner surface of the annular inner cavity;

the second thread wraps half way around the outer surface of the screw.

Optionally, the first thread is continuous around the inner surface half-turn of the annular cavity;

the second thread is continuous around half of the outer surface of the screw.

Optionally, the first thread is composed of a plurality of first sub-threads with the same structure and size, and the plurality of first sub-threads are spaced and annularly wound on the inner surface of the circular ring-shaped inner cavity;

the second thread is composed of a plurality of second sub-threads with the same structure and size, and the plurality of second sub-threads are wound on the outer surface of the screw rod at intervals.

Optionally, the number of the first sub-threads is the same as the number of the second sub-threads.

Alternatively, when the screw assembly is rotated until the first thread is engaged with the second thread, the screw assembly is rotated according to the following formula so that the bottom end surface of the rubber cap is separated from the top end surface of the rubber ring by a preset distance L,

β＝(360°*L)/(2πr*sinθ)

wherein r is a radius of a bottom surface of a cylinder formed by the outermost ring when the first thread and the second thread are engaged together, θ is an angle at which the first thread and the second thread are inclined, and β is an angle at which the screw assembly needs to be rotated.

Optionally, the rubber cap is marked with scales, and the outer peripheral surface of the base is marked with zero-degree angle scale marks;

optionally, the periphery of base is marked with the scale, mark zero degree angle scale mark on the rubber cap.

Optionally, a limiting rib is arranged on the screw rod, the limiting rib extends from one end of the second thread to at least the other end of the second thread along the axial direction of the screw rod, and the limiting rib is located in an area where the second thread is not distributed on the screw rod.

Optionally, the first thread extends for a first preset length along a longitudinal direction perpendicular to a radial direction of the circular ring-shaped inner cavity, and the second thread extends for a second preset length along an axial direction of the screw;

the first preset length is greater than or equal to the second preset length.

Particularly, the invention further provides a vehicle which comprises the back door buffer block.

According to the scheme of the invention, the base of the back door buffer block is internally provided with a first thread, the screw rod is provided with a second thread, the first thread surrounds at least half circle and less than one circle of the inner surface of the circular inner cavity, the second thread surrounds at most half circle of the outer surface of the screw rod, when the clearance surface difference of the back door is to be adjusted, the first thread and the second thread are arranged in a staggered mode, so that when the back door is closed for adjustment, the screw rod can slide down to the bottom end surface of the rubber cap and the top end surface of the rubber ring completely and without hindrance, after the clearance surface difference of the back door is adjusted, the back door is opened, the screw rod component is rotated to be meshed with the first thread and the second thread, the bottom end surface of the rubber cap and the top end surface of the rubber ring are separated by a preset distance, and at the moment, because the first thread and the second thread are meshed, after the back door is rotated to the position, the screw rod component can not slide downwards and is in a locking state. Need not from this to guarantee the buffer block with the help of the paper extraction and match the face laminating to when adjustment buffer block protrusion in the height of back door sheet metal component, only need rotatory screw assembly certain angle can, convenient and fast to very easy control.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 illustrates a schematic structural perspective view of a back door bumper for a vehicle according to one embodiment of the present invention;

FIG. 2 illustrates a schematic structural perspective view of a back door bumper for a vehicle adjusted to a lowermost position according to one embodiment of the present invention;

FIG. 3 illustrates a schematic structural perspective view of a back door bumper for a vehicle adjusted to an uppermost position in accordance with one embodiment of the present invention;

fig. 4 shows a schematic cross-sectional view of a base body according to a first embodiment of the invention;

FIG. 5 shows a schematic cross-sectional view of a screw according to a first embodiment of the invention;

fig. 6 shows a schematic cross-sectional view of a base body according to a second embodiment of the invention;

FIG. 7 shows a schematic cross-sectional view of a screw according to a second embodiment of the invention;

in the figure: 1-base, 11-base body, 12-circular inner cavity, 13-rubber ring, 14-first thread, 141-first thread tooth, 142-first sub thread, 2-screw rod component, 21-screw rod, 22-rubber cap, 23-second thread, 231-second thread tooth, 232-second sub thread, 24-limiting rib and 3-back door sheet metal component.

Detailed Description

Fig. 1 shows a schematic structural perspective view of a back door bumper for a vehicle according to one embodiment of the present invention. Fig. 2 is a schematic structural perspective view illustrating a back door bumper for a vehicle adjusted to a lowermost position according to one embodiment of the present invention. Fig. 3 shows a schematic structural perspective view of a back door cushion block for a vehicle adjusted to an uppermost position according to one embodiment of the present invention.

Referring to fig. 1 to 3, the tailgate bumper comprises a base 1 and a screw assembly 2. This base 1 is installed on the back door sheet metal component 3 of vehicle, and this base 1 includes base body 11 and the rubber circle 13 that sets up around base body 11 outer peripheral face, and this base body 11 has ring shape inner chamber 12, and the internal surface of ring shape inner chamber 12 has the first screw thread 14 of surrounding its at least half a circle and less than the round. The screw assembly 2 comprises a screw 21 and a rubber cap 22 at the top end of the screw 21, the screw 21 being insertably arranged in the annular cavity 12, the outer surface of the screw 21 having a second thread 23 at most half a turn therearound. When the clearance surface difference of the back door of the vehicle is adjusted, the first threads 14 of the base 1 and the second threads 23 of the screw 21 are arranged in a staggered mode, so that when the back door is completely closed, the screw 21 slides downwards along the circular inner cavity 12 without hindrance until the bottom end surface of the rubber cap 22 is completely attached to the top end surface of the rubber ring 13, and after the back door is opened, the screw assembly 2 is rotated until the first threads 14 are meshed with the second threads 23, and the bottom end surface of the rubber cap 22 is separated from the top end surface of the rubber ring 13 by a preset distance.

According to the solution of the present invention, the base 1 of the back door buffer block has the first thread 14 therein, the screw rod 21 has the second thread 23 thereon, and the first thread 14 surrounds at least half turn and less than one turn of the inner surface of the circular inner cavity 12, and the second thread 23 surrounds at most half turn of the outer surface of the screw rod 21, and the first thread 14 and the second thread 23 are arranged in a staggered manner in preparation for adjusting the clearance difference of the back door, so that the screw rod 21 can slide down to the bottom end surface of the rubber cap 22 to be completely attached to the top end surface of the rubber ring 13 without hindrance when the back door is closed for adjustment, and after the clearance difference of the back door is adjusted, the back door is opened again, the screw rod assembly 2 is rotated to engage the first thread 14 and the second thread 23, so that the bottom end surface of the rubber cap 22 is separated from the top end surface of the rubber ring 13 by a predetermined distance, and at this time, because the first thread 14 and the second thread 23 are engaged, after rotating to this position, the screw assembly 2 does not slide down and is in a locked state. Need not from this to guarantee the buffer block with the help of the paper extraction and match the face laminating to when adjustment buffer block protrusion in the height of back door sheet metal component 3, only need rotatory screw assembly 2 certain angle can, convenient and fast, and very easy control.

In one embodiment, the annular inner cavity 12 is composed of a first inner cavity and a second inner cavity which are communicated with each other, the first inner cavity is positioned below the rubber ring 13, and the first thread 14 is positioned on the inner surface of the first inner cavity. The second thread 23 is located at the end of the screw 21 opposite the rubber cap 22.

In one embodiment, the first thread 14 is half a turn around the inner surface of the annular cavity 12. The second thread 23 is half a turn around the outer surface of the screw 21. The first thread 14 is composed of a plurality of first threads 141, the plurality of first threads 141 extend a first predetermined length in a longitudinal direction perpendicular to a radial direction of the circular ring shaped cavity 12, and each first thread 141 surrounds half a turn of the inner surface of the circular ring shaped cavity 12. The second thread 23 is composed of a plurality of second thread ridges 231, the plurality of second thread ridges 231 extends a second preset length in the axial direction of the screw 21, and each thread ridge surrounds the outer surface of the screw 21 by a half turn. Wherein the first preset length is greater than or equal to the second preset length.

When the back door buffer block is manufactured, the inclination angles of the first thread 141 and the second thread 231, that is, the included angle between the second thread 231 and the screw shaft, may be designed as needed. The height of the buffer block protruding out of the sheet metal part 3 of the back door can be adjusted according to needs. This can be set as desired.

Assuming that the screw assembly 2 is required to rotate by a fixed angle β to achieve a desired distance L separating the bottom end surface of the rubber cap 22 from the top end surface of the rubber ring 13, in this case, a means may be adopted to design the inclination angles θ of the first thread 141 and the second thread 231, and the inclination angles θ of the first thread 141 and the second thread 231 are designed according to the following formula, θ being arcsin (360 ° L)/(2 π r β), thereby obtaining the inclination angles of the first thread 141 and the second thread 231 to be manufactured. Where r is the radius of the bottom surface of the cylinder formed by the outermost circles of the first and second threads 14 and 23 when they are engaged together, that is, the radius r of the bottom surface of the cylinder is equal to one half of the sum of the diameter of the screw 21 and the height of the thread ridge of the second thread 23 on the screw 21. In this case, the screw 21 may be provided with a limiting rib 24, the limiting rib 24 extends from one end of the second thread 23 to at least the other end of the second thread 23 along the axial direction of the screw 21, and the limiting rib 24 is located in an area on the screw 21 where the second thread 23 is not distributed. The stopper rib 24 may be configured such that the bottom end surface of the rubber cap 22 is separated from the top end surface of the rubber ring 13 by a distance L when the screw assembly 2 is rotated by an angle β. Alternatively, the rubber cap 22 may be marked with a scale, and the outer peripheral surface of the base 1 may be marked with a zero-degree angle scale mark, or the outer peripheral surface of the base 1 may be marked with a scale, and the rubber cap 22 may be marked with a zero-degree angle scale mark, and when the rotation angle of the screw assembly 2 is β, the zero-degree angle scale mark aligns with the β angle on the scale.

Assuming that the first thread 141 and the second thread 231 are already manufactured and have a known inclination angle θ, when they are applied to a certain vehicle model, it is desired that the distance separating the bottom end surface of the rubber cap 22 from the top end surface of the rubber ring 13 is L when adjusting the back door clearance, and then the operator adjusting the back door clearance needs to know how many degrees the screw assembly 2 needs to be rotated to separate the bottom end surface of the rubber cap 22 from the top end surface of the rubber ring 13 by L, and the rotation angle is set as β, then the angle β required to be rotated is (360 ° L)/(2 π r sin θ) according to the following formula, where β is any other angle value between 0 and 180 °. In this case, the rubber cap 22 may be marked with a scale and the outer peripheral surface of the base 1 may be marked with a zero-degree angle scale, or the outer peripheral surface of the base 1 may be marked with a scale and the rubber cap 22 may be marked with a zero-degree angle scale. When the screw assembly 2 is rotated, it can be observed whether the zero degree angle scale mark is aligned with the corresponding angle on the scale. In this case, a stopper rib 24 may be provided on the screw 21, and the stopper rib 24 may prevent the screw assembly 2 from being excessively rotated.

Whether the first thread 14 is continuous on the inner surface of the annular cavity 12 does not affect the feasibility of the patent, and similarly, whether the second thread 23 is continuous on the outer surface of the screw 21 does not affect the feasibility of the patent. In other words, each first thread ridge 141 may be continuous or divided equally into a plurality of portions, and each second thread ridge 231 may be continuous or divided equally into a plurality of portions.

Assuming that the threaded rod is not provided with the stopper rib 24, when each first thread 141 of the first threads 14 is continuous and each second thread 231 of the second threads 23 is continuous, the first threads 14 and the second threads 23 can be engaged together every 180 ° of rotation of the screw assembly 2. When each first thread 141 in the first screw thread 14 is halved and each second thread 231 in the second screw thread 23 is also halved, the screw assembly 2 can mesh the first screw thread 14 and the second screw thread 23 together every 90 ° rotation. When each first thread 141 in the first thread 14 is halved and each second thread 231 in the second thread 23 is also halved, the screw assembly 2 can mesh the first thread 14 and the second thread 23 together for every 60 ° rotation.

When the stopper rib 24 is provided on the threaded rod, if the stopper rib 24 is provided to allow the screw assembly 2 to rotate only by a specific angle, when β is calculated to be larger than the specific angle by the formula (360 ° × L)/(2 π r × sin θ), only the proper configuration of the first thread 14 and the second thread 23 can be adopted.

The following description is given with reference to specific examples: