CN211032716U - Loading system for steering column and steering column - Google Patents

Abstract

The utility model discloses a loading system for steering column, including mounting, elastic component and loading piece, the loading piece is used for the loading to be in the surface of steering column's inner tube can be followed the length direction of inner tube slides, the elastic component is located the mounting with between the loading piece, the mounting will behind the elastic component compression with steering column's outer tube fixed connection. The utility model also discloses a steering column. The utility model discloses a loading piece and inner tube contact slide, reduce the sliding friction power between inner tube and the outer tube, and the mounting compresses tightly the loading piece with the elastic component compression after fixed with the outer tube, exerts pressure to the inner tube through the loading piece, increases perpendicular rigidity.

Description

Loading system for steering column and steering column

Technical Field

The utility model relates to a steering column technical field especially relates to a loading system and steering column for steering column.

Background

The vertical rigidity of the existing steering column is not ideal, and the adjustment force of the column can be increased by increasing the vertical rigidity of the column.

Accordingly, there is a need for a loading system for a steering column and a steering column that promotes the vertical stiffness of the steering column while reducing the column adjustment force.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a loading system and steering column that are used for steering column who promotes steering column's perpendicular rigidity.

The technical scheme of the utility model a loading system for steering column is provided, including mounting, elastic component and loading piece, the loading piece is used for the loading to be in the surface of steering column's inner tube can be followed the length direction of inner tube slides, the elastic component is located the mounting with between the loading piece, the mounting will behind the elastic component compression with steering column's outer tube fixed connection.

Further, the loading piece comprises a bearing part, a pressurizing part and a holding part, the bearing part is used for being in contact with the elastic piece, the pressurizing part extends from the middle part towards the inner pipe and is inserted into the long groove of the inner pipe, and the holding part respectively extends towards two sides and is used for holding the outer wall of the inner pipe tightly.

Furthermore, the bearing part is a platform formed at the top of the loading part, the edge of the bearing part extends out of a positioning edge towards the fixing part, and the positioning edge extends out of a clamping hook towards the fixing part.

Further, the pressing portion includes a boss and a plurality of rolling members embedded in the boss, the rolling members being in contact with a bottom surface of the long groove.

Further, the clasping portion includes an extension arm extending along the outer surface of the inner tube and a contact foot located at an outer end of the extension arm and in frictional contact with the outer surface of the inner tube.

Further, the extension arm has two, and towards bilateral symmetry distribution, every be equipped with two on the extension arm contact foot, form the friction line on the contact foot.

Further, the elastic member is a spring.

Further, the mounting includes metal part and plastics portion, the metal part is located the center, hexagonal recess has been seted up on the metal part, plastics portion surrounds outside the circumference of metal part, the lateral surface of plastics portion be equipped with the external screw thread and with the corresponding threaded connection of outer tube.

The utility model also provides a steering column, including outer tube and inner tube, the outer pipe box is established outside the inner tube and can follow length direction relative slip, still include above-mentioned arbitrary item the loading system.

Furthermore, an installation through hole is formed in the outer pipe, internal threads are formed on two opposite side walls of the installation through hole, the loading element penetrates through the installation through hole to be in contact with the inner pipe, and external threads of the fixing element are connected with the internal threads.

Further, the mounting through hole is a rectangular hole, the cross section of the loading piece is rectangular, the fixing piece is cylindrical, and the external thread is connected with the internal thread part.

After adopting above-mentioned technical scheme, have following beneficial effect:

the utility model discloses a loading piece and inner tube contact slide, reduce sliding friction power, and the mounting compresses tightly the loading piece with the elastic component compression with the fixed back of outer tube, exerts pressure to the inner tube through the loading piece, increases perpendicular rigidity.

Drawings

The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:

fig. 1 is a partial perspective view of a loading system for a steering column according to an embodiment of the present invention mounted on the steering column;

fig. 2 is a partial cross-sectional view of a loading system for a steering column mounted on the steering column in an embodiment of the present invention;

fig. 3 is a longitudinal sectional view of a loading system for a steering column according to an embodiment of the present invention mounted on the steering column;

fig. 4 is a perspective view of the loading system and the inner tube in an embodiment of the present invention;

fig. 5 is a perspective view of a loading member according to an embodiment of the present invention.

Reference symbol comparison table:

fixing part 1: metal part 11, plastic part 12, hexagonal groove 111;

an elastic member 2;

the loading member 3: the bearing part 31, the pressurizing part 32, the clasping part 33, the positioning edge 311, the hook 312, the boss 321, the rolling piece 322, the extension arm 331 and the contact foot 332;

inner tube 10: a long groove 101;

outer tube 20: the through-hole 201 is installed.

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

It is easily understood that, according to the technical solution of the present invention, a plurality of structural modes and implementation modes that can be mutually replaced by those of ordinary skill in the art can be achieved without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are only exemplary illustrations of the technical solutions of the present invention, and should not be construed as limiting or restricting the technical solutions of the present invention in its entirety or as a limitation of the present invention.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.

In this embodiment, as shown in fig. 1 to 3, a loading system for a steering column includes a fixed member 1, an elastic member 2, and a loading member 3, where the loading member 3 is configured to be loaded on an outer surface of an inner tube 10 of the steering column and can slide along a length direction of the inner tube 10, the elastic member 2 is located between the fixed member 1 and the loading member 3, and the fixed member 1 compresses the elastic member 2 and then fixedly connects with an outer tube 20 of the steering column.

In this embodiment, the loading member 3 is in contact with and slides on the inner tube 10, and after the fixing member 1 is fixed to the outer tube 20, the elastic member 2 is compressed and pressed against the loading member 3, and the loading member 3 presses the inner tube 10, thereby increasing the vertical rigidity.

Further, as shown in fig. 5, the loading member 3 includes a bearing portion 31, a pressing portion 32, and clasping portions 33, the bearing portion 31 is used for contacting with the elastic member 2, the pressing portion 32 extends from the middle toward the inner tube 10 and is inserted into the elongated slot 101 of the inner tube 10, and the clasping portions 33 respectively extend to both sides for clasping the outer wall of the inner tube 10.

Wherein, the bearing part 31 is used for contacting with the elastic element 2 and providing a mounting position for the elastic element 2, and the elastic element 2 is positioned between the bearing part 31 and the fixed element 1.

The pressurizing part 32 is in contact with the inner tube 10 and applies pressure to the inner tube 10. The loading member 3 is installed at the highest position of the inner tube 10 to apply a vertical pressure to the inner tube 10. The pressurizing part 32 protrudes from the middle of the entire loading member 3 toward the inner pipe 10, and is inserted into the long groove 101 of the inner pipe 10, the long groove 101 of the inner pipe 10 extends in the longitudinal direction of the inner pipe 10, and the pressurizing part 32 can slide along the long groove 101.

The clasping portion 33 extends from the middle of the loading member 3 toward both sides and contacts the outer wall of the inner tube 10 for clasping the inner tube 10. The position where the clasping portion 33 contacts the inner tube 10 is not the highest position of the inner tube 10 but is moved a part downward. The clasping portion 33 serves to balance and stabilize the loading member 3 during the sliding of the loading member 3.

Specifically, as shown in fig. 4-5, the bearing portion 31 is a platform formed on the top of the loading element 3, the edge of the bearing portion 31 extends out of a positioning edge 311 toward the fixing element 1, and the positioning edge 311 extends out of a hook 312 toward the fixing element 1.

Two positioning edges 311 are provided, and are respectively arranged on the left side and the right side of the platform and are in a U shape. The two positioning edges 311 serve to define the elastic member 2, preventing the elastic member 2 from shifting in the horizontal direction.

The hook 312 protrudes upward from the positioning edge 311, and is used for hooking the upper edge of the elastic element 2 to prevent the elastic element 2 from falling off.

Further, as shown in fig. 5, the pressing portion 32 includes a boss 321 and a plurality of rolling members 322 embedded in the boss 321, and the rolling members 322 are in contact with the bottom surface of the long groove 101.

The rolling member 322 can reduce friction with the long groove 101 when the pressing portion 32 slides in the long groove 101; while the plurality of rolling members 322 increase the contact area with the long groove 101 so that the contact pressure is increased, thereby increasing the vertical rigidity.

In the present embodiment, the rolling member 322 embedded in the boss 321 is a needle bearing, but other rolling members capable of achieving the above technical effects can be applied to the technical solution of the present invention, for example, a ball.

Further, as shown in fig. 5, the clasping portion 33 comprises an extension arm 331 and a contact foot 332, the extension arm 331 extends along the outer surface of the inner tube 10, and the contact foot 332 is located at the outer end of the extension arm 331 and is in frictional contact with the outer surface of the inner tube 10.

The lower surface of the extension arm 331 is arc-shaped to match the outer circumferential shape of the inner tube 10. The contact feet 332 are in frictional contact with the outer surface of the inner tube 10 for clasping the inner tube 10 and balancing the loading member 3.

In this embodiment, the number of the extension arms 331 is two, and the extension arms 331 are symmetrically distributed toward two sides, and two contact pins 332 are disposed on each extension arm 331, and friction lines are formed on the contact pins 332.

The friction texture can increase the friction between the contact foot 332 and the inner tube 10. The friction lines on the contact pins can be represented as lines with different shapes. The technical solution of the present invention is not limited to the enumerated ground, and the friction lines on the contact pins can be selected from grid lines, dot lines, strip lines or ring lines. Correspondingly, different contact angles can set up the same friction line, also can set up different friction lines based on the friction demand between contact angle and the inner tube.

Further, the elastic member 2 is a spring. The thickness of the spring plate is small, and the spring plate is suitable for being placed between the fixing piece 1 and the loading piece 3. The loading member 3 is pressed by the pressing spring.

Further, as shown in fig. 3, the fixing member 1 includes a metal portion 11 and a plastic portion 12, the metal portion 11 is located at the center, a hexagonal groove 111 is formed on the metal portion 11, the plastic portion 12 surrounds the circumference of the metal portion 11, and an outer side surface of the plastic portion 12 is provided with an external thread and is connected with a corresponding thread of the outer tube 20. For example, an internal thread opened in the mounting through-hole 201 of the outer tube 20.

Hexagonal recess 111 facilitates tightening of fastener 1 by a screwdriver, and plastic portion 12 facilitates forming an external thread for threaded connection with outer tube 20.

The utility model discloses a further embodiment, steering column includes outer tube 20 and inner tube 10, and outer tube 20 cover is established outside inner tube 10 and can be followed length direction relative slip, still includes loading system.

The outer tube 20 is used to adjust the length of the steering column when sliding in the longitudinal direction with respect to the inner tube 10.

Further, as shown in fig. 1, an installation through hole 201 is formed in the outer tube 20, internal threads are formed on two opposite side walls of the installation through hole 201, the loading element 3 passes through the installation through hole 201 to contact the inner tube 10, and the external threads of the fixing element 1 are connected with the internal threads.

Specifically, the mounting through hole 201 is a rectangular hole, the cross section of the loading member 3 is rectangular, and the fixing member 1 is cylindrical. Therefore, there is a gap between the fixing member 1 and the mounting through hole 201, and the external thread of the fixing member 1 is screwed only to a part of the side of the mounting through hole 201.

The design reduces the contact area of the fixing piece 1 and the mounting through hole 201, and is beneficial to achieving ideal torque.

What has been described above is merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principle of the present invention, several other modifications can be made, and the protection scope of the present invention should be considered.

Claims (11)

1. The loading system for the steering column is characterized by comprising a fixing piece, an elastic piece and a loading piece, wherein the loading piece is loaded on the outer surface of an inner pipe of the steering column and can slide along the length direction of the inner pipe, the elastic piece is positioned between the fixing piece and the loading piece, and the fixing piece compresses the elastic piece and then is fixedly connected with an outer pipe of the steering column.

2. The loading system according to claim 1, wherein the loading member includes a bearing portion for contacting the elastic member, a pressing portion extending from a middle portion toward the inner tube and inserted into an elongated groove of the inner tube, and clasping portions extending to both sides for clasping an outer wall of the inner tube, respectively.

3. The loading system of claim 2, wherein the carrying portion is a platform formed on the top of the loading member, and an edge of the carrying portion extends out of a positioning edge towards the fixing member, and the positioning edge extends out of a hook towards the fixing member.

4. The loading system of claim 2, wherein the pressurization portion comprises a boss and a plurality of rolling members embedded in the boss, the rolling members being in contact with a bottom surface of the elongated slot.

5. The loading system of claim 2, wherein the clasping portion comprises an extension arm extending along the outer surface of the inner tube and a contact foot located at an outer end of the extension arm and in frictional contact with the outer surface of the inner tube.

6. The loading system of claim 5, wherein the two extension arms are symmetrically distributed towards two sides, and two contact pins are arranged on each extension arm, and friction lines are formed on the contact pins.

7. The loading system of any of claims 1-6, wherein the resilient member is a spring.

8. The loading system according to any one of claims 1 to 6, wherein the fixing member comprises a metal part and a plastic part, the metal part is located at the center, a hexagonal groove is formed in the metal part, the plastic part surrounds the metal part, and the outer side surface of the plastic part is provided with an external thread and is connected with the corresponding thread of the outer pipe.

9. A steering column comprising an outer tube and an inner tube, the outer tube being sleeved outside the inner tube and being capable of sliding relative to the inner tube in a longitudinal direction, further comprising a loading system as claimed in any one of claims 1 to 8.

10. The steering column according to claim 9, wherein the outer tube has a mounting through hole, and inner threads are formed on opposite side walls of the mounting through hole, the loading member passes through the mounting through hole to contact the inner tube, and the outer thread of the fixing member is connected to the inner threads.

11. The steering column according to claim 10, wherein the mounting through-hole is a rectangular hole, the cross-section of the loading member is rectangular, the fixing member is cylindrical, and the external thread is connected to the internal thread portion.

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