CN211252747U

CN211252747U - Self-locking steering lower shaft

Info

Publication number: CN211252747U
Application number: CN201922494615.5U
Authority: CN
Inventors: 汪燕龙
Original assignee: Hangzhou Longfu Machinery Co ltd
Current assignee: Hangzhou Longfu Machinery Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-14
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to the technical field of steering shafts, and discloses a self-locking steering lower shaft, a T-shaped column is arranged on the steering lower shaft, a steering upper shaft is arranged on the steering lower shaft, a T-shaped groove is arranged on the steering upper shaft, a fixed groove is arranged on the steering lower shaft, a fixed box is arranged in the fixed groove, an injection hole is arranged on the fixed box, an injection pipeline is arranged on the injection hole, a tension spring is arranged in the fixed box, an elastic block is arranged on the tension spring, an elastic hole is arranged on the fixed box, a fixed column is arranged on the elastic block, a clamping groove is arranged on the, the positions of the fixed column and the clamping groove which correspond up and down when the steering lower shaft rotates are marked by a special marking mode, hydraulic oil is injected into the fixed box through the injection pipeline, and the inside of the fixed box is pressurized at the same time, so that the elastic block is pushed by the hydraulic oil to move downwards, so that the fixing column moves to the inside of the clamping groove, and the steering lower shaft and the steering upper shaft are fixed together.

Description

Self-locking steering lower shaft

Technical Field

The utility model relates to a steering spindle technical field specifically is a from locking-type steering lower shaft.

Background

The steering shaft has the function of transmitting the steering torque of the driver acting on the steering wheel to the steering gear, the upper part of the steering shaft is fixedly connected with the steering wheel, and the lower part of the steering shaft is connected with the steering gear. The steering shaft passes through the steering column tube and is supported on bearings and bushings in the column tube. Some steering shafts have certain rigidity, and a steering wheel controls the direction of the automobile, so that the steering wheel is fixed and used for secondary automobile theft prevention.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The not enough to prior art, the utility model provides a from locking-type steering lower shaft possesses advantages such as the theftproof effect is showing, has solved the problem that traditional chain locking steering wheel is difficult to the theftproof.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a self-locking steering lower shaft comprises a steering lower shaft, wherein the steering lower shaft is of a cylindrical structure, a T-shaped column is arranged on the steering lower shaft, a steering upper shaft is arranged on the steering lower shaft and is of a cylindrical structure, the steering upper shaft is fixedly arranged on a steering wheel in a vehicle and can rotate along with the steering wheel, a T-shaped groove is formed in the steering upper shaft, a fixing groove which is a rectangular groove is formed in the steering lower shaft and is positioned on the outer circle wall surface of the steering lower shaft, the fixing groove is positioned on the outer circle wall surface of one end close to the steering upper shaft, a fixing box is arranged in the fixing groove, an injection hole is formed in the fixing box and is a circular hole, the injection hole is positioned on the outer circle wall surface of the fixing box and penetrates through the outer circle wall surface of the fixing box and the inner circle wall surface of the fixing box, an, the excircle wall of injection pipeline is in the same place with interior round wall fixed mounting of filling hole, and the injection pipeline extends to the inside of fixed box always, is provided with the extension spring in the fixed box, is provided with the bullet piece on the extension spring, has seted up the bullet hole on the fixed box, and the bullet hole is the circular port, and the bullet hole is located the last wall center department of fixed box, and the bullet hole has run through the inside and outside both sides wall of the lower wall of fixed box, is provided with the fixed column on the bullet piece, turns to and has seted up the draw-in groove on.

Preferably, the T-shaped column is of a cylindrical structure, is located in the center of the lower wall surface of the lower steering shaft, is of a cylindrical structure with a T-shaped cross section, is of a T-shaped groove, is located in the center of the upper wall surface of the upper steering shaft, and is clamped with the T-shaped column.

Preferably, the fixing box is of a hollow oval structure, the fixing box is located on the inner wall surface of the fixing groove, and the upper wall surface of the fixing box is fixedly mounted with the inner wall surface of the fixing groove.

Preferably, the extension spring is located the inside wall surface of going up of fixed box, and the wall fixed mounting is in the same place on the last wall surface of extension spring and the inside of fixed box, and the bullet piece is oval cylindricality structure, and the bullet piece is located the inside of fixed box, and the interior round wall laminating of bullet piece and fixed box, the last wall surface of bullet piece and the lower wall fixed mounting of extension spring are in the same place.

Preferably, the fixed column is of a cylindrical structure, the upper wall surface of the fixed column is fixedly mounted with the lower wall surface of the elastic block, the fixed column extends to the lower part of the upper wall surface of the fixed box through the elastic hole, the outer circle wall surface of the fixed column is attached to the inner circle wall surface of the elastic hole, and a round corner is formed in the outer circle of the lower wall surface of the fixed column.

Preferably, the clamping groove is a circular groove, a round corner is formed in the wall surface of the outer circle of the upper end of the clamping groove, the clamping groove is located on the upper wall surface of the rotating upward shaft, the clamping groove vertically corresponds to the elastic hole, and the fixing column can extend into the clamping groove.

(III) advantageous effects

Compared with the prior art, the utility model provides a from locking-type steering lower shaft possesses following beneficial effect:

1. according to the self-locking steering lower shaft, the positions of the fixing columns and the clamping grooves which correspond up and down when the steering lower shaft rotates are marked in a special marking mode, hydraulic oil is injected into the fixing box through the injection pipeline, meanwhile, the inside of the fixing box is pressurized, the hydraulic oil pushes the elastic blocks to move downwards, the fixing columns move to the inside of the clamping grooves, the steering lower shaft and the steering upper shaft are fixed together, compared with the traditional steering wheel locking anti-theft mode, the steering shaft provides a safer steering wheel locking anti-theft mode, and the steering shaft is directly connected with the steering wheel, so that the steering wheel can be locked by locking the steering shaft in the automobile, the secondary anti-theft effect is achieved, and the steering shaft is convenient and simple and has a good anti-theft effect.

2. This from locking-type turn to lower shaft through seted up the fillet on the excircle of fixed column and draw-in groove for the fixed column gets into draw-in groove convenient and fast more, and has reduced the wearing and tearing at fixed column edge, has improved the life of fixed column.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front sectional view of the structure of the present invention;

fig. 3 is a sectional view of the structure fixing box of the present invention;

FIG. 4 is a partial schematic view of A.

In the figure: the device comprises a steering lower shaft 1, a steering upper shaft 2, a 3T-shaped column, a 4T-shaped groove, a 5 fixing groove, a 6 fixing box, a 7 injection hole, an 8 injection pipeline, a 9 fixing column, a 10 clamping groove, an 11 elastic block, a 12 elastic hole and a 13 tension spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention relates to a self-locking steering lower shaft, which comprises a steering lower shaft 1, wherein the steering lower shaft 1 is of a cylindrical structure, a T-shaped column 3 is arranged on the steering lower shaft 1, the T-shaped column 3 is of a cylindrical structure, the T-shaped column 3 is located at the center of the lower wall surface of the steering lower shaft 1, the T-shaped column 3 is of a cylindrical structure with a T-shaped cross section, a steering upper shaft 2 is arranged on the steering lower shaft 1, the steering upper shaft 2 is of a cylindrical structure, the steering upper shaft 2 is fixedly mounted on a steering wheel in a vehicle, the steering upper shaft 2 can rotate along with the steering wheel, a T-shaped groove 4 is arranged on the steering upper shaft 2, the T-shaped groove 4 is a T-shaped groove, the T-shaped groove 4 is located at the center of the upper wall surface of the steering upper shaft 2, the T-shaped groove 4 is clamped with the T-shaped column 3, the, the fixing groove 5 is a rectangular groove, the fixing groove 5 is positioned on the outer circular wall surface of the steering lower shaft 1, the fixing groove 5 is positioned on the outer circular wall surface of one end close to the steering upper shaft 2, a fixing box 6 is arranged in the fixing groove 5, the fixing box 6 is of a hollow oval structure, the fixing box 6 is positioned on the inner wall surface of the fixing groove 5, the upper wall surface of the fixing box 6 is fixedly installed with the inner wall surface of the fixing groove 5, an injection hole 7 is formed in the fixing box 6, the injection hole 7 is a circular hole, the injection hole 7 is positioned on the outer circular wall surface of the fixing box 6, the outer circular wall surface of the fixing box 6 and the inner circular wall surface of the fixing box 6 penetrate through the injection hole 7, an injection pipeline 8 is arranged on the injection hole 7, the injection pipeline 8 is of a hollow pipeline structure, the outer circular wall surface of the injection pipeline 8 is fixedly installed, the tension spring 13 is of a conventional structure, which is not described herein in detail, the tension spring 13 is located on an upper wall surface inside the fixed box 6, an upper wall surface of the tension spring 13 is fixedly mounted with the upper wall surface inside the fixed box 6, the tension spring 13 is provided with an elastic block 11, the elastic block 11 is of an elliptic cylindrical structure, the elastic block 11 is located inside the fixed box 6, the elastic block 11 is attached to an inner circular wall surface of the fixed box 6, the elastic block 11 can move up and down inside the fixed box 6, an upper wall surface of the elastic block 11 is fixedly mounted with a lower wall surface of the tension spring 13, the fixed box 6 is provided with an elastic hole 12, the elastic hole 12 is a circular hole, the elastic hole 12 is located in a center of the upper wall surface of the fixed box 6, the elastic hole 12 penetrates through inner and outer side wall surfaces of a lower wall surface of the fixed box 6, the elastic block 11 is provided with a fixed column 9, the fixed column 9 is of a cylindrical structure, the upper wall surface of the fixed column 9 is fixedly mounted with the lower wall surface, the outer circular wall surface of the fixing column 9 is attached to the inner circular wall surface of the elastic hole 12, a round corner is formed in the outer circular wall surface of the lower wall surface of the fixing column 9, the steering upper shaft 2 is provided with a clamping groove 10, the clamping groove 10 is a circular groove, the outer circular wall surface of the upper end of the clamping groove 10 is provided with a round corner, the clamping groove 10 is located in the upper wall surface of the steering upper shaft 2, the clamping groove 10 corresponds to the elastic hole 12 up and down, and the fixing column 9 can extend into.

When the steering lower shaft 1 rotates, the positions of the fixed columns 9 and the clamping grooves 10 which correspond up and down are marked in a special marking mode, hydraulic oil is injected into the fixed box 6 through the injection pipeline 8, the inside of the fixed box 6 is pressurized, the elastic blocks 11 are pushed by the hydraulic oil to move downwards, the fixed columns 9 move into the clamping grooves 10, and the steering lower shaft 1 and the steering upper shaft 2 are fixed together.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A self-locking steering lower shaft comprises a steering lower shaft (1), and is characterized in that: the steering lower shaft (1) is provided with a T-shaped column (3), the steering lower shaft (1) is provided with a steering upper shaft (2), the steering upper shaft (2) is provided with a T-shaped groove (4), the steering lower shaft (1) is provided with a fixing groove (5), the fixing groove (5) is internally provided with a fixing box (6), the fixing box (6) is provided with an injection hole (7), the injection hole (7) is provided with an injection pipeline (8), the fixing box (6) is internally provided with a tension spring (13), the tension spring (13) is provided with an elastic block (11), the fixing box (6) is provided with an elastic hole (12), the elastic block (11) is provided with a fixing column (9), and the steering upper shaft (2) is provided with a clamping groove.

2. The self-locking steering lower shaft according to claim 1, wherein: the upper wall surface of the fixing column (9) is fixedly installed with the lower wall surface of the elastic block (11), the fixing column (9) extends to the lower portion of the upper wall surface of the fixing box (6) through the elastic hole (12), the outer circle wall surface of the fixing column (9) is attached to the inner circle wall surface of the elastic hole (12), and a round angle is formed in the outer circle of the lower wall surface of the fixing column (9).

3. The self-locking steering lower shaft according to claim 1, wherein: the round angle is arranged on the outer circular wall surface of the upper end of the clamping groove (10), the clamping groove (10) is located on the upper wall surface of the steering upper shaft (2), the clamping groove (10) vertically corresponds to the elastic hole (12), and the fixing column (9) can extend into the clamping groove (10).

4. The self-locking steering lower shaft according to claim 1, wherein: the T-shaped column (3) is located in the center of the lower wall face of the steering lower shaft (1), the cross section of the T-shaped column (3) is of a T-shaped cylindrical structure, the T-shaped groove (4) is located in the center of the upper wall face of the steering upper shaft (2), and the T-shaped groove (4) is connected with the T-shaped column (3) in a clamping mode.

5. The self-locking steering lower shaft according to claim 1, wherein: the fixing box (6) is of a hollow oval structure, the fixing box (6) is located on the inner wall surface of the fixing groove (5), and the upper wall surface of the fixing box (6) is fixedly installed with the inner wall surface of the fixing groove (5).

6. The self-locking steering lower shaft according to claim 1, wherein: extension spring (13) are located the inside wall surface of going up of fixed box (6), and wall fixed mounting is in the same place on the wall surface in the inside of extension spring (13) and fixed box (6), and bullet piece (11) are the elliptic cylindrical structure, and bullet piece (11) are located the inside of fixed box (6), and the laminating of the interior circle wall surface of bullet piece (11) and fixed box (6), the last wall surface of bullet piece (11) and the lower wall fixed mounting of extension spring (13) are in the same place.