阅读说明：本技术 一种转向管柱组件 (Steering column assembly ) 是由 黄荣生 李廷 胡建冰 覃琳 钟振军 黄文通 黄汉舟 黄桥 葛跃 唐建 张德军 于 2020-11-27 设计创作，主要内容包括：本发明公开了一种转向管柱组件,包括固定在车体上的第一支架、固定在第一支架上的滑脱块、安装在滑脱块上的第二支架、固定在第二支架上的管架,以及转向管柱；转向管柱转动并滑动式安装在管架上,转向管柱绕着其轴线转动并沿着其轴线方向滑动,第二支架上设有限位块,转向管柱的圆周侧面上固设有限位架,限位块位于第一支架和第二支架之间；转向管柱具有用于转动式安装在车体上的第一端和用于与方向盘连接的第二端；当第二端向上摆动时,限位架抵接管架上；当第二端向下摆动时,限位块抵接在第一支架上。本发明可以有效防止转向管柱的旋转,保证了转向管柱受到碰撞时轴向受力的稳定性,提高转向管柱碰撞溃缩的性能,属于车辆安全的技术领域。(The invention discloses a steering column assembly, which comprises a first support fixed on a vehicle body, a slipping block fixed on the first support, a second support arranged on the slipping block, a pipe frame fixed on the second support and a steering column, wherein the pipe frame is fixed on the second support; the steering column rotates and is slidably mounted on the pipe frame, the steering column rotates around the axis of the steering column and slides along the axis direction of the steering column, the second support is provided with a limiting block, the circumferential side surface of the steering column is fixedly provided with a limiting frame, and the limiting block is positioned between the first support and the second support; the steering column has a first end for rotatably mounting on the vehicle body and a second end for connection to a steering wheel; when the second end swings upwards, the limiting frame is abutted against the pipe frame; when the second end swings downwards, the limiting block abuts against the first support. The invention can effectively prevent the rotation of the steering column, ensures the stability of axial stress when the steering column is collided, improves the collision and collapse performance of the steering column, and belongs to the technical field of vehicle safety.)

1. A steering column assembly characterized by: the device comprises a first bracket fixed on a vehicle body, a slipping block fixed on the first bracket, a second bracket arranged on the slipping block, a pipe frame fixed on the second bracket and a steering column; the steering column rotates and is slidably mounted on the pipe frame, the steering column rotates around the axis of the steering column and slides along the axis of the steering column, a limiting block is arranged on the second support, a limiting frame is fixedly arranged on the circumferential side surface of the steering column, and the limiting block is positioned between the first support and the second support; the steering column has a first end for rotatably mounting on a vehicle body and a second end for connection with a steering wheel; when the second end swings upwards, the limiting frame is abutted to the pipe frame; when the second end swings downwards, the limiting block abuts against the first support.

2. A steering column assembly according to claim 1, wherein: the limiting block is hemispherical, the end face of the limiting block is fixed on the second support, and the spherical surface of the limiting block is in contact with the first support.

3. A steering column assembly according to claim 1, wherein: the pipe support is including pressing from both sides tight piece and installing press from both sides the slip backing sheet on the tight piece, steering column rotary type is installed press from both sides tight piece with the slip backing sheet encloses the region that closes and form.

4. A steering column assembly according to claim 3, wherein: the clamping piece is in an inverted U shape and is provided with a first clamping part, a first arc part and a second clamping part which are sequentially connected; the steering column centre gripping is in first clamping part with between the second clamping part, the slip backing sheet has first connecting portion and second circular arc portion and the third connecting portion of connecting gradually, first connecting portion with first clamping part is connected, the second connecting portion with the second clamping part is connected, the circumference side of steering column with the arc surface contact and the slidingtype of second circular arc portion are installed on the second circular arc portion.

5. A steering column assembly according to claim 4 in which: the locking shaft pin and the adjusting handle are further included; the locking shaft pin sequentially penetrates through the first clamping portion, the first connecting portion, the second connecting portion and the second clamping portion, a pin head is arranged at one end of the locking shaft pin, the other end of the locking shaft pin is in threaded connection with the adjusting handle, and the first clamping portion, the first connecting portion, the second connecting portion and the second clamping portion are clamped between the pin head and the adjusting handle.

6. A steering column assembly according to claim 4 in which: the second support comprises a first connecting plate, an arc plate and a second connecting plate which are connected in sequence; two slippage blocks are fixedly arranged on the first support, the first connecting plate is installed on one of the slippage blocks, the second connecting plate is installed on the other slippage block, the first arc portion of the clamping piece is fixed on the arc surface of the arc plate, and the limiting blocks are arranged on the first connecting plate and the second connecting plate.

7. A steering column assembly according to claim 6, wherein: the first connecting plate is inserted into one of the slippage blocks, and the second connecting plate is inserted into the other slippage block.

8. A steering column assembly according to claim 7, wherein: the first connecting plate is connected with a first limiting plate, the first limiting plate is perpendicular to the first connecting plate, the second connecting plate is connected with a second limiting plate, and the second limiting plate is perpendicular to the second connecting plate.

9. A steering column assembly according to claim 6, wherein: the first connecting plate and the limiting block are integrally formed, and the second connecting plate and the limiting block are integrally formed.

10. A steering column assembly according to claim 7, wherein: the first connecting plate is connected with the first limiting plate in a smooth and smooth mode and is integrally formed, and the second connecting plate is connected with the second limiting plate in a smooth and smooth mode and is integrally formed.

Technical Field

The invention relates to the technical field of vehicle safety, in particular to a steering column assembly.

Background

At present, automobile steering columns have a collapsing function. The mounting bracket on the steering column is a stamping part, mounting points on the bracket are clamped into the mounting bracket by adopting a slipping block or energy-absorbing steel belt structure, the mounting surface of the slipping block or the energy-absorbing steel belt needs to protrude out of the surface of the column mounting bracket, and the mounting surface of the slipping block or the energy-absorbing steel belt can not be designed to be too wide (in order to ensure the collapse force), so that the matching surface of the steering column and the instrument desk pipe beam mounting bracket is very small, when the steering column is impacted by the head or chest collision of a driver, because the column pipe between the upper mounting point and the lower mounting point of the steering column is sleeved with the rotating shaft, the steering column at the steering wheel end has the tendency of rotating downwards around the connecting line of the upper mounting point, and the upper part has. If the driver's lower limbs easily hit the lower edge of the steering wheel or the head hits the upper edge of the steering wheel when the driver collides without fastening the safety belt, the steering column tends to rotate upward. The steering column rotates to reduce the axial crushing force of the steering wheel and influence the collapsing function of the steering wheel.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention aims to: the invention provides a steering column assembly which can effectively prevent the rotation of a steering column, ensure the stability of axial stress when the steering column is collided and improve the collision and collapse performance of the steering column.

In order to achieve the purpose, the invention adopts the following technical scheme:

a steering column assembly comprises a first support fixed on a vehicle body, a slipping block fixed on the first support, a second support arranged on the slipping block, a pipe frame fixed on the second support and a steering column; the steering column rotates and is slidably mounted on the pipe frame, the steering column rotates around the axis of the steering column and slides along the axis of the steering column, a limiting block is arranged on the second support, a limiting frame is fixedly arranged on the circumferential side surface of the steering column, and the limiting block is positioned between the first support and the second support; the steering column has a first end for rotatably mounting on a vehicle body and a second end for connection with a steering wheel; when the second end swings upwards, the limiting frame is abutted to the pipe frame; when the second end swings downwards, the limiting block abuts against the first support.

Furthermore, the limiting block is hemispherical, the end face of the limiting block is fixed on the second support, and the spherical surface of the limiting block is in contact with the first support.

Further, the pipe support includes pressing from both sides tight piece and installing press from both sides the slip backing sheet on the tight piece, steering column rotary type is installed press from both sides tight piece with the area that the slip backing sheet encloses and form is in.

Further, the clamping piece is in an inverted U shape, and is provided with a first clamping part, a first arc part and a second clamping part which are sequentially connected; the steering column centre gripping is in first clamping part with between the second clamping part, the slip backing sheet has first connecting portion and second circular arc portion and the third connecting portion of connecting gradually, first connecting portion with first clamping part is connected, the second connecting portion with the second clamping part is connected, the circumference side of steering column with the arc surface contact and the slidingtype of second circular arc portion are installed on the second circular arc portion.

Further, the steering column assembly further comprises a locking shaft pin and an adjusting handle; the locking shaft pin sequentially penetrates through the first clamping portion, the first connecting portion, the second connecting portion and the second clamping portion, a pin head is arranged at one end of the locking shaft pin, the other end of the locking shaft pin is in threaded connection with the adjusting handle, and the first clamping portion, the first connecting portion, the second connecting portion and the second clamping portion are clamped between the pin head and the adjusting handle.

Further, the second bracket comprises a first connecting plate, an arc plate and a second connecting plate which are connected in sequence; two slippage blocks are fixedly arranged on the first support, the first connecting plate is installed on one of the slippage blocks, the second connecting plate is installed on the other slippage block, the first arc portion of the clamping piece is fixed on the arc surface of the arc plate, and the limiting blocks are arranged on the first connecting plate and the second connecting plate.

Further, the first connecting plate is inserted into one of the slipping blocks, and the second connecting plate is inserted into the other slipping block.

Furthermore, a first limiting plate is connected to the first connecting plate, the first limiting plate is perpendicular to the first connecting plate, a second limiting plate is connected to the second connecting plate, and the second limiting plate is perpendicular to the second connecting plate.

Further, the first connecting plate and the limiting block are integrally formed, and the second connecting plate and the limiting block are integrally formed.

Furthermore, the first connecting plate is connected with the first limiting plate in a smooth and smooth mode and is integrally formed, and the second connecting plate is connected with the second limiting plate in a smooth and smooth mode and is integrally formed.

Compared with the prior art, the invention has the following beneficial effects: when the steering column is collided by a driver, the limiting block is used as a fulcrum support to prevent the steering column from rotating downwards around a mounting point, and the limiting frame is used for clamping the pipe frame to prevent the steering column from rotating upwards around the mounting point. The invention can ensure the stability of axial stress when the steering column is collided by preventing the rotation of the steering column, improve the collision and collapse performance of the steering column and improve the driving safety.

Drawings

FIG. 1 is a front view of a steering column assembly.

Fig. 2 is a left side view of the steering column assembly.

Fig. 3 is a schematic structural diagram of the first bracket, the slippage block, the second bracket and the pipe frame.

Fig. 4 is a schematic structural diagram of the first bracket, the slipping block, the second bracket and the limiting block.

Fig. 5 is a schematic structural view of a conventional steering column.

In the figure, 1 is a first bracket, 2 is a slipping block, 3 is a second bracket, 4 is a pipe frame, 5 is a steering column, 6 is a limiting block, 7 is a limiting frame, 8 is a locking shaft pin, 9 is an adjusting handle, 10 is a pin head, and 11 is a fixing block;

31 is a first connecting plate, 32 is an arc plate, 33 is a second connecting plate, 34 is a first limiting plate, 35 is a second limiting plate, 41 is a clamping piece, 42 is a sliding support piece, 51 is a first end, and 52 is a second end.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For convenience of description, unless otherwise noted, the up-down direction described below coincides with the up-down direction of fig. 1 itself, and the left-right direction described below coincides with the left-right direction of fig. 1 itself.

As shown in fig. 1 to 4, the present embodiment provides a steering column assembly including a first bracket 1 fixed to a vehicle body, a slipping block 2 fixed to the first bracket 1, a second bracket 3 mounted on the slipping block 2, a pipe frame 4 fixed to the second bracket 3, and a steering column 5; the steering column 5 rotates and is slidably mounted on the pipe frame 4, the steering column 5 rotates around the axis of the steering column and slides along the axis direction of the steering column, the second support 3 is provided with a limiting block 6, a limiting frame 7 is fixedly arranged on the circumferential side surface of the steering column 5, and the limiting block 6 is positioned between the first support 1 and the second support 3; the steering column 5 has a first end 51 for rotatable mounting on the vehicle body and a second end 52 for connection to a steering wheel; when the second end 52 swings upwards, the limiting frame 7 is abutted against the pipe frame 4; when the second end 52 swings downward, the stopper 6 abuts on the first bracket 1. A gap is arranged between the limiting frame 7 and the pipe frame 4. A sleeve is provided on the vehicle body, and the right end (first end 51) of the steering column 5 is mounted on the sleeve, and the steering column 5 can rotate and slide in the sleeve. The limiting block 6, the slipping block 2 and the limiting frame 7 are sequentially arranged along the axial direction of the steering column 5 (from left to right), and the slipping block 2 is positioned between the limiting block 6 and the limiting frame 7. The left end (second end 52) of the steering column 5 is connected to the steering wheel of the vehicle, and when the second end 52 of the steering column 5 receives an impact force, the second end 52 of the steering column 5 rotates up and down around the first end 51, which affects the collapsing performance (inside the sleeve) of the steering column 5. When the second end 52 of the steering column 5 is rotated downward, the stopper 6 tends to move upward, and the first bracket 1 blocks the stopper 6 from moving upward, thereby preventing the second end 52 from rotating downward. When the second end 52 of the steering column 5 is rotated upward, the retainer 7 tends to move upward, and the first bracket 1 blocks the retainer 7 from moving upward, thereby preventing the second end 52 from rotating upward.

Specifically, in one embodiment, the limiting frame 7 includes a circular ring plate attached to the circumferential side surface of the steering column 5, and the circular ring plate is provided with a notch located between the notch and the side surface of the first bracket 1.

Specifically, in one embodiment, the limiting block 6 is shaped like a hemisphere, the end surface of the limiting block 6 is fixed on the second support 3, and the spherical surface of the limiting block 6 contacts with the first support 1.

Specifically, in one embodiment, the pipe frame 4 includes a clamping piece 41 and a sliding support piece 42 mounted on the clamping piece 41, and the steering column 5 is rotatably mounted in an area defined by the clamping piece 41 and the sliding support piece 42.

Specifically, in one embodiment, the clamping piece 41 is in an inverted U shape, the clamping piece 41 has a first clamping portion and a first arc portion and a second clamping portion connected in sequence, the first clamping portion and the second clamping portion are distributed at intervals and vertically arranged, and the first arc portion is located above the first clamping portion and the second clamping portion. The sliding support piece 42 is M-shaped, and the sliding support piece 42 has a first connection portion, a second arc portion and a third connection portion connected in sequence. The first connecting portion is fixedly connected with the first clamping portion, the second connecting portion is fixedly connected with the second clamping portion, and the circumferential side face of the steering column 5 is in contact with the arc face of the second arc portion and is installed on the second arc portion in a sliding mode.

Specifically, in one embodiment, the arc length of the second arc portion of the sliding support piece 42 is 0.2 to 0.45 times the circumference of the steering column 5.

Specifically, in one embodiment, the first clamping portion and the first arc portion and the second clamping portion are all connected in sequence in a smooth manner. The first connecting portion, the second arc portion and the third connecting portion are connected in sequence and are connected smoothly.

In particular, in one embodiment, there is a gap of 1mm between the spacing frame 7 and the second clamping portion.

Specifically, in one embodiment, the steering column assembly further comprises a locking pin 8 and an adjustment handle 9; the locking shaft pin 8 sequentially penetrates through the first clamping portion, the first connecting portion, the second connecting portion and the second clamping portion, a pin head 10 is arranged at one end of the locking shaft pin 8, the other end of the locking shaft pin 8 is in threaded connection with the adjusting handle 9, and the first clamping portion, the first connecting portion, the second connecting portion and the second clamping portion are all clamped between the pin head 10 and the adjusting handle 9. The first connecting part and the second connecting part are positioned between the first clamping part and the second clamping part. The tightness degree of the connection between the steering column 5 and the pipe frame 4 can be adjusted by the adjusting handle 9.

Specifically, in one embodiment, the second bracket 3 includes a first connecting plate 31, an arc plate 32, and a second connecting plate 33 connected in sequence; the first connecting plate 31 and the second connecting plate 33 are both horizontally disposed. Two slippage blocks 2 are fixedly arranged on the first support 1, the first connecting plate 31 is fixed on one slippage block 2, the second connecting plate 33 is fixed on the other slippage block 2, the first arc part of the clamping piece 41 is fixed on the arc surface of the arc plate 32, and the first connecting plate 31 and the second connecting plate 33 are respectively provided with a limiting block 6. The stopper 6 on the first connecting plate 31 is positioned between the first connecting plate 31 and the first bracket 1, and the stopper 6 on the second connecting plate 33 is positioned between the second connecting plate 33 and the first bracket 1.

Specifically, in one embodiment, the first connecting plate 31, the circular arc plate 32, and the second connecting plate 33 are connected in sequence to form a smooth connection.

Specifically, in one embodiment, a first reinforcing block is provided between the first connecting plate 31 of the first bracket 1 and the first connecting portion of the clamping piece 41, and the first connecting plate 31 of the first bracket 1 and the first connecting portion of the clamping piece 41 are connected by the first reinforcing block. A second reinforcing block is arranged between the second connecting plate 33 of the first bracket 1 and the second connecting part of the clamping piece 41, and the second connecting plate 33 of the first bracket 1 and the second connecting part of the clamping piece 41 are connected through the second reinforcing block.

Specifically, in one embodiment, the first reinforcing block is provided with a first arc surface, the second reinforcing block is provided with a second arc surface, the joint of the first connecting portion and the arc portion of the first bracket 1 is attached to the first arc surface, and the joint of the second connecting portion and the arc portion of the first bracket 1 is attached to the second arc surface.

Specifically, in one embodiment, the shape of the first bracket 1 is similar to the shape of the second bracket 3, and a gap exists between the first bracket 1 and the second bracket 3.

Specifically, in one embodiment, the first connecting plate 31 is inserted into one of the slipping blocks 2, and the second connecting plate 33 is inserted into the other slipping block 2. Be equipped with the through-hole on the slippage piece 2, first connecting plate 31 and second connecting plate 33 are all fixed in the through-hole for the installation of first connecting plate 31 and second connecting plate 33 is more firm.

Specifically, in one embodiment, the first connection plate 31 is connected with a first limit plate 34, the first limit plate 34 is perpendicular to the first connection plate 31, the second connection plate 33 is connected with a second limit plate 35, and the second limit plate 35 is perpendicular to the second connection plate 33. The first stopper plate 34 is located at the left end of the first connecting plate 31. The second stopper plate 35 is located at the right end of the second connecting plate 33.

Specifically, in one embodiment, the first connecting plate 31 is integrally formed with the stopper 6, and the second connecting plate 33 is integrally formed with the stopper 6. The limiting block 6 is a protruding semicircular ring on the first connecting plate 31 and the second connecting plate 33.

Specifically, in one embodiment, the first connecting plate 31 is smoothly connected to the first stopper plate 34 and the integrally formed second connecting plate 33 is smoothly connected to the second stopper plate 35 and integrally formed.

As shown in fig. 5, in the prior art, the fixing block 11 is arranged to fixedly connect the steering column 5 to the vehicle body, the ideal stress condition when the steering column 5 receives an impact is F, but the actual stresses are F1 and F2, so the steering column 5 can rotate, the existing fixing mode has only one stress point, when the impact force is too large, the steering column 5 can easily rotate around the fixing block 11, so that the steering column 5 is reduced or loses the collapsing performance, and a driver is injured more.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.