CN210174955U

CN210174955U - Attitude keeping auxiliary for adjustable steering column

Info

Publication number: CN210174955U
Application number: CN201920902987.4U
Authority: CN
Inventors: Hongyu Wang; 王宏宇; Xuelei Tao; 陶薛磊; Junhua Xiao; 肖俊华
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-03-24
Anticipated expiration: 2029-06-14

Abstract

The utility model belongs to the technical field of automobile parts, in particular to an attitude keeping auxiliary part of an adjustable steering column, which comprises a pin pipe and a pin which are matched in a splicing way, wherein a narrow slit which is communicated with the pipe wall is arranged at the pipe end at one side of the pin pipe, and the pipe section where the narrow slit is positioned forms a clamping part; when the pin is inserted into the pin pipe, the distance between the narrow slits is increased, and the maximum outer diameter of the clamping portion is larger than the caliber of the corresponding matching hole of the upper protection pipe and/or the lower protection pipe. The installation and the removal operation are convenient, and the limit is stable and reliable. The pin pipe and the pin are inserted into corresponding matching holes of the steering column in sequence, so that the relative displacement of the upper protection pipe and the lower protection pipe can be limited, and the design posture of the steering column is maintained; the limit of the steering column can be conveniently released by sequentially pulling out the pin and the pin pipe.

Description

Attitude keeping auxiliary for adjustable steering column

Technical Field

The utility model belongs to the technical field of automobile parts, in particular to steering column's gesture keeps auxiliary with adjustable.

Background

The automobile steering column assembly is a connecting part arranged between a steering wheel and a steering gear and is mainly used for controlling the automobile advancing direction, transmitting torque and absorbing energy when an automobile is impacted. Axial displacement and circumferential direction can take place for adjustable steering column's upper and lower pillar, and before the dress, upper and lower pillar should be in the design gesture, avoid steering column's cylinder to stretch out and draw back or rotate at will. However, in the steering column of the prior art, the axial displacement of the two protection pipes is usually limited by the handle, and a locking mechanism is additionally arranged to limit the relative rotation of the two protection pipes, so that the locking structure for maintaining the design posture of the steering column is complex. And thereby the handle is extremely easily bumped the pine and is relieved spacingly in transportation and the in-process of taking, leads to steering column's assembly efficiency low, assembly quality poor, steering column department often takes place the abnormal sound during driving.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steering column's gesture keeps auxiliary with adjustable can reliably maintain the design gesture of steering column.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an attitude keeping auxiliary of an adjustable steering column comprises a pin pipe and a pin which are in splicing fit, wherein a narrow slit which penetrates through the pipe wall is arranged at the pipe end on one side of the pin pipe, and a pipe section where the narrow slit is located forms a clamping part; when the pin is inserted into the pin pipe, the distance between the narrow slits is increased, and the maximum outer diameter of the clamping portion is larger than the caliber of the corresponding matching hole of the upper protection pipe and/or the lower protection pipe.

Compared with the prior art, the utility model discloses there are following technological effect: the installation and the removal operation are convenient, and the limit is stable and reliable. The pin pipe and the pin are inserted into corresponding matching holes of the steering column in sequence, so that the relative displacement of the upper protection pipe and the lower protection pipe can be limited, and the design posture of the steering column is maintained; the limit of the steering column can be conveniently released by sequentially pulling out the pin and the pin pipe.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

fig. 1 is a perspective view of the present invention in use;

FIG. 2 is an auxiliary view of the present invention in use;

FIG. 3 is a cross-sectional view taken at P-P of FIG. 2;

FIG. 4 is an enlarged schematic view of section C of FIG. 3;

FIG. 5 is a secondary view of the upper sheath;

FIG. 6 is a front view of the fitting state of the present invention;

fig. 7 is a perspective view of the pin tube and the retainer.

In the figure: 10. the pin comprises a pin tube, 11 parts of narrow slits, 12 parts of clamping parts, 12a parts of valve bodies, 12b parts of concave parts, 13 parts of clamping heads, 20 parts of pins, 21 parts of annular holding parts, 30 parts of limiting seats, 31 parts of strip-shaped seat bodies and 32 parts of annular seat bodies.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.

An attitude keeping auxiliary of an adjustable steering column comprises a pin pipe 10 and a pin 20 which are in splicing fit, wherein a narrow slit 11 penetrating through the pipe wall is arranged at the pipe end on one side of the pin pipe 10, and a pipe section where the narrow slit 11 is located forms a clamping part 12; in an initial state, the maximum outer diameter of the clamping portion 12 is smaller than the caliber of the corresponding matching hole of the upper protection tube A and/or the lower protection tube B, when the pin 20 is inserted into the pin tube 10, the distance between the narrow slits 11 is increased, and the maximum outer diameter of the clamping portion 12 is larger than the caliber of the corresponding matching hole of the upper protection tube A and/or the lower protection tube B.

When using, insert earlier pin pipe 10 and arrange in steering column corresponds the complex hole in, make the overhanging end of joint portion 12 stretch into steering column's lumen, then insert pin 20 in pin pipe 10, joint portion 12 is along the radial displacement of pin pipe 10, the interval increase of slot 11, and the maximum external diameter also increases thereupon, and joint portion 12 is injectd inside steering column's lumen to the relative displacement of pillar A and pillar B down is gone up in the injecing. After the installation is finished, the pin 20 is pulled out, the distance between the narrow slits 11 is recovered, and the clamping portion 12 can be withdrawn from the tube cavity of the steering column, so that the limit of the upper protective tube A and the lower protective tube B is released.

Specifically, the narrow slit 11 divides the engaging portion 12 into two or more flap bodies 12a, and a recess 12b for accommodating the pin 20 is provided inside each flap body 12a. The area enclosed by the concave portion 12b at the connection end conforms to the radial dimension of the pin 20, and the pin tube 10 can be smoothly guided to the catching portion 12. The area enclosed by the recess 12b at the overhanging end is smaller than the radial dimension of the pin 20, so that when the pin tube 10 is inserted therein, the petal body 12a is driven to move away in the radial direction of the pin tube 10, and the petal body and the pin tube are tightly matched; after the pin tube 10 is pulled out, the petals 12a move in the radial direction of the pin tube 10 in opposite directions to restore the initial posture.

Preferably, the overhanging end of the clamping portion 12 is provided with a clamping head 13, the whole clamping head 13 is in a cone shape with a small overhanging end and a large connecting end, and the cone bottom of the clamping head 13 is the maximum outer diameter of the clamping portion 12. When the pin 20 is inserted into the pin tube 10, the tapered bottom of the cartridge 12 will abut against the adjacent wall of the steering column.

Preferably, the clamping portion 12 is made of an elastic material. One end of the pin 20 is provided with an annular holding part 21, so that the pin 20 can be conveniently pulled out and inserted.

When the upper protection tube A or the lower protection tube B is provided with a notch on the tube body and the other protection tube is provided with a hole at the position corresponding to the notch, the side part of the tube body of the pin tube 10 extends outwards along the radial direction to form a limiting seat 30, and the peripheral outline of the limiting seat 30 is in accordance with the shape of the notch on the tube body of the upper protection tube A or the lower protection tube B. Like this, spacing seat 30 inlays and locates in the breach that sets up on last pillar A or the pillar B pipe shaft down, and joint portion 12 and the cooperation of pin 20 guarantee accessory and steering column's reliable connection.

In this embodiment, the lower protection tube B is inserted into the upper protection tube a, the upper protection tube a has a notch a1 arranged along the tube length direction of the upper protection tube a, the shape of the seat body of the limiting seat 30 matches the shape of the notch a1 on the tube body of the upper protection tube a, the limiting seat 30 includes a strip seat body 31 extending from the side of the pin tube 10 to the tube length direction of the upper protection tube a, the end of the strip seat body 31 extends to the tube periphery of the upper protection tube a to form an annular seat body 32, and the outer peripheral shapes of the strip seat body 31 and the annular seat body 32 match the shape of the notch a 1.

Claims

1. An attitude keeping aid for an adjustable steering column, characterized in that: the pipe joint comprises a pin pipe (10) and a pin (20) which are in inserting fit, wherein a narrow slit (11) penetrating through the pipe wall is formed in the pipe end on one side of the pin pipe (10), and a pipe section where the narrow slit (11) is located forms a clamping part (12); in an initial state, the maximum outer diameter of the clamping portion (12) is smaller than the caliber of the corresponding matching hole of the upper protection pipe (A) and/or the lower protection pipe (B), when the pin (20) is inserted into the pin pipe (10), the distance between the narrow slits (11) is increased, and the maximum outer diameter of the clamping portion (12) is larger than the caliber of the corresponding matching hole of the upper protection pipe (A) and/or the lower protection pipe (B).

2. The adjustable steering column attitude keeping aid according to claim 1, wherein: the narrow slit (11) divides the clamping portion (12) into two or more than two valve bodies (12a), a concave portion (12b) used for containing the pin (20) is arranged on the inner side of each valve body (12a), an area formed by enclosing the concave portion (12b) located at the connecting end is consistent with the radial size of the pin (20), the area formed by enclosing the concave portion (12b) located at the overhanging end is smaller than the radial size of the pin (20), and the valve bodies (12a) move close to or away from each other in the radial direction of the pin tube (10).

3. The adjustable steering column attitude keeping aid according to claim 1, wherein: the overhanging end of the clamping part (12) is provided with a clamping head (13), the clamping head (13) is integrally in a conical shape with a small overhanging end and a large connecting end, and the conical bottom of the clamping head (13) is the maximum outer diameter of the clamping part (12).

4. The adjustable steering column attitude keeping aid according to claim 1, wherein: the clamping portion (12) is made of elastic materials, and one end of the pin (20) is provided with an annular holding portion (21).

5. The adjustable steering column attitude keeping aid according to claim 1, wherein: the side part of the pipe body of the pin pipe (10) extends outwards along the radial direction to form a limiting seat (30), and the peripheral outline of the limiting seat (30) is in accordance with the shape of the notch on the pipe body of the upper protective pipe (A) or the lower protective pipe (B).