CN213808650U - Buffer device - Google Patents

Abstract

The utility model discloses a buffer device, belonging to the technical field of buffer devices, which comprises a shell and a movable pin, a telescopic space is arranged in the shell along the height direction, an opening communicated with the telescopic space is arranged at the top of the shell, the movable pin is movably arranged in the telescopic space, the movable pin can move up and down along the height direction of the shell in the telescopic space, partially extends out of the telescopic space and passes through the opening when extending out, a limiting piece is arranged between the shell and the movable pin, the limiting piece is used for preventing the movable pin from continuously extending after the top of the movable pin extends out of the telescopic space for a preset distance, the tail of the shell is closed, a compressible elastic element is arranged in the telescopic space and connected between the tail part of the shell and the tail part of the movable pin. The buffer device has a simpler structure and requires smaller installation space.

Description

Buffer device

Technical Field

The utility model relates to a buffer technical field relates to a buffer, especially relates to a buffer suitable for car storing box.

Background

At present, a buffer cushion is generally arranged between a box and a cover arranged on an automobile storage box so as to avoid direct collision between the box and the cover.

A conventional patent (CN 106460987A) discloses a buffer device for buffering between predetermined members, which discloses: a cylindrical case member; and a pin member slidably inserted into the case member, the end portion of the case member having: a hole forming portion that forms an insertion hole into which the pin member is inserted; and a slit which can expand and deform the hole forming portion, wherein a tapered portion inclined with respect to the axial direction is formed in at least one of an outer peripheral surface of the pin member and an inner peripheral surface of the hole forming portion, the pin member moves in a direction in which the pin member is press-fitted into the insertion hole from the inside of the housing member, and the outer peripheral surface of the pin member and the inner peripheral surface of the hole forming portion slide via the tapered portion, thereby pressing and expanding the insertion hole.

The buffering device provided by the buffering device needs a larger installation space, and the pin part can be ensured to have a sufficient telescopic space.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned prior art existence, the utility model aims at providing a buffer of simpler structure, required installation space is littleer, can guarantee that the round pin part has sufficient flexible space.

In order to achieve the purpose, the technical proposal adopted by the utility model is that the buffer device comprises a shell and a movable pin, a telescopic space is arranged in the shell along the height direction, an opening communicated with the telescopic space is arranged at the top of the shell, the movable pin is movably arranged in the telescopic space, the movable pin can move up and down along the height direction of the shell in the telescopic space, partially extends out of the telescopic space and passes through the opening when extending out, a limiting piece is arranged between the shell and the movable pin, the limiting piece is used for preventing the movable pin from continuously extending after the top of the movable pin extends out of the telescopic space for a preset distance, the tail of the shell is closed, a compressible elastic element is arranged in the telescopic space and connected between the tail part of the shell and the tail part of the movable pin.

Further, the movable pin afterbody outside is equipped with the lug, be equipped with on the casing with the lug one-to-one and along the rectangular channel of direction of height distribution, the lug is controlled spacing in corresponding the rectangular channel just can slide from top to bottom in this rectangular channel, the lug stops when upwards sliding to extreme position the movable pin continues to stretch out flexible space.

Furthermore, the outer side of the tail of the movable pin is symmetrically provided with two convex blocks, and the shell is provided with two rectangular grooves which correspond to the two convex blocks one by one and are distributed along the height direction.

Further, the elastic element is provided as a compression spring.

Furthermore, a positioning column extending into the telescopic space is arranged on the inner side of the tail of the shell, one end of the elastic element is sleeved on the positioning column, and the other end of the elastic element is abutted to the tail of the movable pin.

Furthermore, the top of the positioning column is provided with an inclined guide part.

Furthermore, the top of the movable pin is provided with a connecting part which is wide at the top and narrow at the bottom, and a rubber contact piece is sleeved outside the connecting part.

Furthermore, material reducing grooves distributed along the height direction penetrate through the middle of the movable pin.

Furthermore, at least one clamping part which is obliquely arranged is arranged at the outer side of the middle part of the shell close to the top.

Further, the shell is arranged in a barrel-shaped structure.

Adopt the utility model discloses a behind the buffer, compared with the prior art, the utility model the advantage that has is: the buffering device is simpler in overall structure and compact in layout, the shell is in a tail part closed mode, the movable pin can only extend out of the opening in the top of the shell, and after the movable pin extends out of the preset distance, the limiting part limits and prevents the movable pin from extending continuously, so that the movable pin reaches the highest height; each part of the buffer device is convenient to install, the volume of the whole buffer device is smaller, the occupied space is small, the pin part can be completely coated in the small buffer device in the shell, the required installation space is smaller, and the pin part can be ensured to have enough telescopic space.

Drawings

Fig. 1 is a schematic structural view of the buffering device of the present invention;

fig. 2 is an exploded view of the cushioning device of the present invention;

fig. 3 is a sectional view of the buffering device of the present invention.

In the figure: 10. a housing; 20. a movable pin; 30. a telescopic space; 40. an opening; 50. an elastic element; 60. a bump; 70. a rectangular groove; 80. a positioning column; 90. a guide portion; 100. a connecting portion; 110. a rubber contact member; 120. a material reducing tank; 130. a clamping part.

Detailed Description

The following description is only a preferred embodiment of the present invention, so that the present invention is more clearly and clearly understood, and the protection scope of the present invention is not limited thereby.

The utility model mainly provides a buffer, this buffer specially adapted car storing box can be with the pin part complete cladding at the inside small-size buffer of casing, and its required installation space is littleer, can guarantee that the pin part has sufficient flexible space.

Referring to fig. 1 to 3, the buffering device of the present invention includes a housing 10 and a movable pin 20, a telescopic space 30 is arranged in the shell 10 along the height direction, an opening 40 communicated with the telescopic space 30 is arranged at the top of the shell 10, the movable pin 20 is movably installed in the telescopic space 30, the movable pin 20 can move up and down in the telescopic space 30 along the height direction of the housing 10 and partially extends out of the telescopic space 30 and passes through the opening 40 when extending out, a limiting part is arranged between the shell 10 and the movable pin 20, the limiting part is used for preventing the movable pin 20 from continuously extending after the top of the movable pin 20 extends out of the telescopic space 30 for a preset distance, the tail of the shell 10 is closed, a compressible elastic member 50 is provided in the telescopic space 30, and the elastic member 50 is connected between the rear portion of the housing 10 and the rear portion of the movable pin 20.

The buffering device is simpler in overall structure and compact in layout, the shell 10 is in a tail part closed mode, the movable pin 20 only can extend out through the opening 40 in the top of the shell 10, and after the movable pin extends out for a preset distance, the limiting part limits and prevents the movable pin 20 from extending continuously, so that the movable pin 20 reaches the highest height; after the movable pin 20 retreats into the shell 10, the top of the movable pin is also collected into the telescopic space 30, each part of the buffer device is convenient to install, the volume of the whole buffer device is smaller, the occupied space is small, the pin part can be completely coated on the small buffer device inside the shell 10, the required installation space is smaller, and the pin part can be ensured to have the enough telescopic space 30.

Further, the limiting part in the scheme is preferably as follows: the outside of the tail of the movable pin 20 is provided with a bump 60, the casing 10 is provided with a rectangular groove 70 which is in one-to-one correspondence with the bump 60 and is distributed along the height direction, the bump 60 is limited in the left and right direction and corresponds to the rectangular groove 70 and can slide up and down in the rectangular groove 70, the bump 60 stops when sliding up to the limit position, the movable pin 20 continues to extend out of the telescopic space 30, the limit position is the position where the bump 60 cannot continue to move up after being blocked, and the movable pin 20 also reaches the preset distance of extension at the moment.

The limiting effect of the movable pin 20 is reliably realized in a way that the convex block 60 of the movable pin 20 is matched with the rectangular groove 70 of the shell 10, the overall structure layout is compact and reasonable, the working stability and reliability are high, and the installation is also convenient.

In order to further ensure the reliability of work and limit and the stability of the movement of the movable pin 20, two convex blocks 60 are symmetrically arranged on the outer side of the tail of the movable pin 20 in a left-right manner, and two rectangular grooves 70 which correspond to the two convex blocks 60 one to one and are distributed along the height direction are arranged on the shell 10.

For making things convenient for the installation of pressure spring direction and reliable with being connected of reference column 80, removable pin 20, casing 10 afterbody inboard is equipped with and stretches into flexible space 30's reference column 80, elastic element 50 pot head is in on the reference column 80, the elastic element 50 other end with the butt of removable pin 20 afterbody.

Furthermore, the top of the positioning column 80 is provided with an inclined guide part 90, so that the guide effect is better, and the installation is more convenient.

Further, a connecting portion 100 with a wide top and a narrow bottom is arranged at the top of the movable pin 20, a rubber contact 110 is sleeved outside the connecting portion 100, the rubber contact and the connecting portion are preferably in threaded connection, and after the movable pin 20 retreats into the housing 10, the rubber contact 110 is also accommodated into the telescopic space 30.

Preferably, the elastic element 50 can be a compression spring or a rubber member or a compressible component with the same effect, and preferably, the elastic element 50 is a compression spring, so that the structure is simpler, when the contact element abuts against a cover of the automobile storage box, the contact element can be buffered through the compression spring, the purpose of reducing the buffer impact force is achieved, and the noise generated by collision can be reduced.

Furthermore, the shell 10 of the buffer device is arranged to be a barrel-shaped structure, the material reducing grooves 120 distributed along the height direction are arranged in the middle of the movable pin 20 in a penetrating mode, at least one clamping portion 130 which is obliquely arranged is arranged at the outer side position, close to the top, of the middle of the shell 10, and the installation of external parts is more reliable and convenient when various occasions are applied.

While the invention has been described with reference to a preferred embodiment and illustrative embodiments thereof, it will be understood by those skilled in the art that the invention is not limited to the precise embodiments described herein, and that various changes, rearrangements and substitutions may be made without departing from the scope of the invention.

Claims (10)

1. The utility model provides a buffer, includes casing and removable pin, its characterized in that, be equipped with flexible space along direction of height in the casing, the casing top be equipped with the opening of flexible space intercommunication, removable pin movable mounting be in the flexible space, the removable pin can follow in the flexible space casing direction of height reciprocates and the part stretches out flexible space just passes when stretching out and drawing out the opening, the casing with be provided with the locating part between the removable pin, the locating part is used for the removable pin top is stretched out stop after the distance is predetermine to flexible space the removable pin continues to stretch out, the casing afterbody is sealed be equipped with compressible elastic element in the flexible space, elastic element connects the casing afterbody with between the removable pin afterbody.

2. The buffer device as claimed in claim 1, wherein a protrusion is disposed on an outer side of a tail portion of the movable pin, rectangular grooves are disposed on the housing and are distributed along a height direction, the protrusion is laterally limited in the corresponding rectangular groove and can slide up and down in the rectangular groove, and the protrusion prevents the movable pin from extending out of the telescopic space when sliding up to a limit position.

3. The buffer device as claimed in claim 2, wherein the outer side of the tail of the movable pin is symmetrically provided with two convex blocks, and the housing is provided with two rectangular grooves which correspond to the two convex blocks one by one and are distributed along the height direction.

4. A damping device according to claim 1, characterized in that the elastic element is arranged as a compression spring.

5. The buffering device as claimed in claim 4, wherein a positioning post extending into the telescopic space is provided inside the tail of the housing, one end of the elastic element is sleeved on the positioning post, and the other end of the elastic element is abutted against the tail of the movable pin.

6. A fender according to claim 5 wherein the locating post is provided with an inclined guide at the top.

7. A buffer device according to any one of claims 1 to 6 wherein the top of the movable pin is provided with a connecting part which is wide at the top and narrow at the bottom, and the connecting part is sleeved with a rubber contact piece.

8. A buffer device according to any one of claims 1 to 6 wherein the movable pin is provided with relief grooves extending in the height direction in the middle thereof.

9. A damper according to any one of claims 1 to 6 wherein the housing is provided with at least one inclined detent at a position outside the top of the central portion of the housing.

10. A fender according to any one of claims 1 to 6 wherein the housing is provided as a barrel arrangement.

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