CN211167073U

CN211167073U - Steering shaft of motor vehicle

Info

Publication number: CN211167073U
Application number: CN201922330203.8U
Authority: CN
Inventors: 闫宝祥; 吕占军; 赵月起; 李树干; 徐秀腾
Original assignee: Tianjin Jingyi Fastener Co ltd
Current assignee: Tianjin Jingyi Fastener Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-08-04
Anticipated expiration: 2029-12-23

Abstract

The utility model provides a motor vehicle steering spindle belongs to motor vehicle accessory technical field, including telescopic shaft and connecting piece, the steering wheel is articulated with the one end of telescopic shaft, and the other end and the connecting piece of telescopic shaft are articulated, the connecting piece sets up on the steering gear. When the telescopic steering wheel is used, a driver can adjust the position height of the steering wheel by changing the telescopic length of the telescopic shaft, and simultaneously, the two ends of the telescopic shaft are hinged with the steering wheel and the connecting piece through the cross shaft, so that the position angle of the steering wheel is changed without influencing the transmission of torque. The utility model discloses the structure is reliable, uses in a flexible way, through the position height and the angle of axis of rotation change steering wheel to solve among the prior art because everybody's height size and driving habit are different and the uncomfortable problem of driving that leads to.

Description

Steering shaft of motor vehicle

Technical Field

The embodiment of the utility model provides a relate to motor vehicle accessory technical field, concretely relates to motor vehicle steering spindle.

Background

With the development of social economy, the living standard of people is continuously improved, more and more people select the automobile as a daily outgoing carrier, however, the height and the size and the driving habit of each person are different, the appearance structure of the automobile needs to be designed and produced according to standardization, and except for a seat, the general automobile model basically has no adjustable space, so that the bad conditions of discomfort, fatigue, even dysphoria and the like can be caused when a user drives the automobile, and the driving comfort and the driving experience of the user are greatly influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a motor vehicle steering shaft changes the position height and the angle of steering wheel through the axis of rotation to solve among the prior art because everybody's height size and driving habit are different and the uncomfortable problem of driving that leads to.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

the utility model provides a motor vehicle steering spindle, including telescopic shaft and connecting piece, the steering wheel is articulated with the one end of telescopic shaft, and the other end and the connecting piece of telescopic shaft are articulated, and the connecting piece is connected with the steering gear transmission.

Further, the telescopic shaft includes outer tube structure, interior slip axle and damping spring, and the connecting piece is articulated with interior slip axle one end, and the interior slip axle other end is inserted and is established in outer tube structure one end, and the outer tube structure other end is articulated with the connecting piece, and damping spring sets up inside outer tube structure, and damping spring one end supports with interior slip axle, and the damping spring other end offsets with outer tube structure.

Further, the outer tube structure includes hole, jump ring groove, sleeve pipe and first section fork, and the sleeve pipe outer wall is provided with the jump ring groove, and sleeve pipe one end is provided with first section fork, and first section fork is articulated with the steering wheel through the ten bytes, and the sleeve pipe other end is provided with the hole, and the hole internalization is inserted and is equipped with interior sliding shaft.

Further, interior slide shaft includes integral key shaft, second section fork and ball anticreep piece, and the hole interpolation is equipped with the integral key shaft, integral key shaft one end and ball anticreep piece spiro union, and the integral key shaft other end is fixed to be provided with the second section fork, and the second section fork passes through the cross and is articulated with the connecting piece, and the integral key shaft offsets with damping spring one end, and the damping spring other end offsets with the hole.

Further, the inner hole comprises spline grooves and ball grooves, the inner wall of the sleeve is uniformly provided with a plurality of spline grooves along the radial direction, a ball groove is arranged between every two adjacent spline grooves, and a plurality of balls are embedded in the ball grooves in a sliding mode.

Furthermore, the spline shaft comprises key strips, circular grooves and a shaft body, the shaft body is provided with a plurality of key strips along the radial direction, the key strips are movably inserted into the spline grooves, a circular groove is arranged between every two adjacent key strips, and the circular grooves are abutted to balls embedded in the ball grooves.

The embodiment of the utility model provides a have following advantage:

1. interior slip shaft movable sleeve establishes in the hole of overcoat tubular construction, and installs damping spring in the hole, and when motor vehicle went on the road surface of pothole, damping spring can play for steering wheel absorbing effect to improve driver's driving motor vehicle's comfort level.

2. The spline shaft is movably inserted in the inner hole, so that the sleeve can freely stretch and move on the spline shaft, when a driver starts to drive a motor vehicle, the position height of the steering wheel can be adjusted according to the height and the arm length of the driver, and the comfort level of driving the motor vehicle is improved.

3. Because the steering wheel is articulated with first festival fork through the ten bytes, and the second festival fork is articulated with the connecting piece, and first festival fork is located the both ends of telescopic shaft respectively with the second festival fork, so even the steering wheel biasing certain angle, also can transmit the moment of torsion to the steering gear to change the direction that the car went, the driver can change the angle of steering wheel according to the driving habit of oneself from this, thereby improve the comfort level of driving the motor vehicle.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is an exploded perspective view of a steering shaft of a motor vehicle according to an embodiment of the present invention;

fig. 2 is an exploded view of a telescopic shaft of a steering shaft of a motor vehicle according to an embodiment of the present invention;

fig. 3 is a perspective view of an inner sliding shaft of a steering shaft of a motor vehicle according to an embodiment of the present invention;

fig. 4 is a perspective view of an outer sleeve structure of a steering shaft of a motor vehicle according to an embodiment of the present invention;

in the figure: 2, a telescopic shaft; 21 an outer sleeve structure; 211 an inner hole; 2111 spline grooves; 2112 ball grooves; 212 a clamp spring slot; 213 a sleeve; 214 a first yoke; 22 an inner sliding shaft; 221 a spline shaft; 2211 key bar; 2212 round slot; 222 a second yoke; 223 ball drop prevention members; 23 a damper spring; 3, connecting pieces.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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.

As shown in fig. 1-4, the utility model provides a motor vehicle steering shaft, including telescopic shaft 2 and connecting piece 3, the steering wheel is articulated with the one end of telescopic shaft 2, and the other end of telescopic shaft 2 is articulated with connecting piece 3, and connecting piece 3 sets up on the steering gear. Further, the steering wheel is articulated through the cross with the one end of telescopic shaft 2, and the other end of telescopic shaft 2 passes through the cross and is articulated with connecting piece 3, and when the steering wheel rotated, even the certain angle of steering wheel biasing also can come the transmission moment of torsion through telescopic shaft 2, because telescopic shaft 2 can adjust length simultaneously, therefore the user can be with the height of this adjustment steering wheel to improve the comfort level of driving.

According to the utility model provides a concrete embodiment, the telescopic shaft 2 includes outer sleeve structure 21, interior slip axle 22 and damping spring 23, connecting piece 3 is articulated with interior slip axle 22 one end, the interior slip axle 22 other end is inserted and is established in outer sleeve structure 21 one end, the outer sleeve structure 21 other end is articulated with connecting piece 3, damping spring 23 sets up inside outer sleeve structure 21, damping spring 23 one end offsets with interior slip axle 22, the damping spring 23 other end offsets with outer sleeve structure 21. The damping spring 23 is located inside the outer sleeve structure 21, when the automobile runs on a bumpy road, a driver needs to hold the steering wheel tightly to control the direction, and the damping spring 2 plays a role in damping the steering wheel so as to reduce the fatigue degree of the driver.

According to the utility model provides a concrete embodiment, interior slide shaft 22 includes integral key shaft 221, second section fork 222 and ball anticreep piece 223, the interpolation of hole 211 is equipped with integral key shaft 221, integral key shaft 221 one end and ball anticreep piece 223 spiro union, its purpose is in order to prevent the interior ball landing of integral key shaft 221, integral key shaft 221 other end is fixed and is provided with second section fork 222, second section fork 222 is articulated with connecting piece 3 through the cross, can be to connecting piece 3 transmission moment of torsion from this, integral key shaft 221 offsets with damping spring 23 one end, the damping spring 23 other end offsets with hole 211. Therefore, the purpose of damping the steering wheel is achieved, and the function of protecting the spline shaft 221 and avoiding hard impact between the inner sliding shaft 22 and the outer sleeve structure 21 is also achieved.

According to the utility model provides a specific embodiment, hole 211 includes spline 2111 and ball groove 2112, sleeve 213 inner wall evenly is provided with a plurality of spline 2111 along radial, when the steering wheel rotates, integral key shaft 221 includes key 2211 and axis body 2213, axis body 2213 is along radially being provided with a plurality of key 2211, key 2211 activity is inserted and is established in spline 2111, when the steering wheel rotates, produced moment of torsion passes through spline 2111 and transmits on key 2211, and make integral key shaft 221 drive connecting piece 3 rotate, because connecting piece 3 is connected with the steering gear transmission, therefore can change the traffic direction of motor vehicle.

According to the utility model provides a specific embodiment, hole 211 includes ball groove 2112, and integral key shaft 221 includes circular slot 2212 and axis body 2213, and the position of circular slot 2212 is relative with the position of ball groove 2112, when the outer sleeve pipe structure 21 drives the steering wheel and reciprocates, because the ball has been inlayed in ball groove 2112, therefore to a certain extent, can alleviate the wearing and tearing between integral key shaft 221 and the hole 211 to improve the durability of motor vehicle steering spindle.

According to the utility model provides a specific embodiment, outer sleeve structure 21 includes hole 211, jump ring groove 212, sleeve pipe 213 and first festival fork 214, sleeve pipe 213 outer wall is provided with jump ring groove 212, the jump ring passes through jump ring groove 212 and installs the other end at sleeve pipe 213, thereby prevent that integral key shaft 221 from breaking away from in interior sky 211, sleeve pipe 213 one end is provided with first festival fork 214, first festival fork 214 is articulated through the ten bytes with the steering wheel, even the steering wheel is to arbitrary direction certain angle of offset, also can transmit the moment of torsion to sleeve pipe 213 on. The other end of the sleeve 213 is provided with an inner hole 211, and an inner sliding shaft 22 is movably inserted in the inner hole 211. The inner sliding shaft 22 can freely extend and retract in the inner hole 211, so that the purpose of changing the height of the steering wheel position is achieved.

The utility model discloses use as follows:

the inner sliding shaft 22 is movably inserted in the inner hole 211, when the outer sleeve structure 21 extends outwards, the position height of the steering wheel can be correspondingly improved, and simultaneously, as the steering wheel and the connecting piece 3 are hinged with the two ends of the telescopic shaft 2 through the cross joint, when the position angle of the steering wheel is changed, torque can be still provided for the steering gear, and the driving direction of the automobile is changed.

To sum up, the driver can adjust the height and the angle of the steering wheel according to the driving habit and the height size of the driver when driving the automobile, thereby solving the problem of uncomfortable driving caused by different heights and sizes and driving habits of everyone in the prior art.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The motor vehicle steering shaft is characterized by comprising a telescopic shaft (2) and a connecting piece (3), wherein a steering wheel is hinged to one end of the telescopic shaft (2), the other end of the telescopic shaft (2) is hinged to the connecting piece (3), and the connecting piece (3) is in transmission connection with a steering gear.

2. A steering shaft for a motor vehicle according to claim 1, wherein the telescopic shaft (2) comprises an outer sleeve structure (21), an inner sliding shaft (22) and a damping spring (23), the connecting member (3) is hinged to one end of the inner sliding shaft (22), the other end of the inner sliding shaft (22) is inserted into one end of the outer sleeve structure (21), the other end of the outer sleeve structure (21) is hinged to the connecting member (3), the damping spring (23) is arranged inside the outer sleeve structure (21), one end of the damping spring (23) abuts against the inner sliding shaft (22), and the other end of the damping spring (23) abuts against the outer sleeve structure (21).

3. The steering shaft of the motor vehicle as claimed in claim 2, wherein the outer sleeve structure (21) comprises an inner hole (211), a clamp spring groove (212), a sleeve (213) and a first yoke (214), the outer wall of the sleeve (213) is provided with the clamp spring groove (212), one end of the sleeve (213) is provided with the first yoke (214), the first yoke (214) is hinged with the steering wheel through a cross joint, the other end of the sleeve (213) is provided with the inner hole (211), and an inner sliding shaft (22) is movably inserted in the inner hole (211).

4. A steering shaft for a motor vehicle according to claim 3, wherein the inner slide shaft (22) comprises a spline shaft (221), a second yoke (222) and a ball release preventing member (223), the spline shaft (221) is inserted into the inner bore (211), one end of the spline shaft (221) is screwed with the ball release preventing member (223), the other end of the spline shaft (221) is fixedly provided with the second yoke (222), the second yoke (222) is hinged with the connecting member (3) through a cross shaft, the spline shaft (221) abuts one end of the damper spring (23), and the other end of the damper spring (23) abuts the inner bore (211).

5. A steering shaft for a motor vehicle according to claim 4, wherein said inner bore (211) comprises spline grooves (2111) and ball grooves (2112), a plurality of said spline grooves (2111) are uniformly arranged along the radial direction on the inner wall of said sleeve (213), a ball groove (2112) is arranged between adjacent said spline grooves (2111), and a plurality of balls are slidably inserted into said ball grooves (2112).

6. The steering shaft of a motor vehicle as claimed in claim 5, wherein the spline shaft (221) comprises a plurality of key bars (2211), circular grooves (2212) and a shaft body (2213), the shaft body (2213) is provided with a plurality of key bars (2211) along a radial direction, the key bars (2211) are movably inserted into the spline grooves (2111), a circular groove (2212) is arranged between adjacent key bars (2211), and the circular grooves (2212) are abutted against the balls embedded in the ball grooves (2112).