A force-limited steering column adjustment handle

Abstract

The present invention relates to the field of automobile steering wheel column adjustment, and specifically discloses a force-limited steering wheel column adjustment handle. It includes a mounting sleeve, a mounting column and an adjustment unit, the adjustment unit includes a guide slider and an adjustment handle, the mounting sleeve has a U-shaped cross section, the positioning sleeve is provided with a strip through groove, the mounting column passes through the adjustment through groove and is slidably connected to the side wall of the adjustment through groove, the mounting column is threadedly connected with a positioning cylinder, the positioning cylinder passes through the adjustment handle and the guide slider in turn, the adjustment handle is rotatably connected to the positioning cylinder, the guide slider is slidably connected to the positioning cylinder, the side wall of the guide slider is provided with a groove, a limited position block is fixed on the adjustment handle, the limited position block can push the guide slider to the side away from the mounting sleeve; a spring is provided on the side of the guide slider away from the adjustment handle. The force-limited steering wheel column adjustment handle in the present invention can prevent the driver from being injured when colliding with the handle.

Description

Technical Field

[0001] The invention relates to the field of automobile steering wheel column adjustment, and in particular to a force-limited steering wheel column adjustment handle. Background Art

[0002] The column is a structure that connects the steering wheel and the steering gear. In the current passenger car design, in order to facilitate the operation needs of drivers of different heights and arm lengths, the steering wheel is often designed to be adjustable. The specific form is: the steering wheel position is adjusted by loosening the adjustment handle on the column, and when the ideal position is reached, the handle is locked to fix the steering wheel. In the conventional design, the handle is fastened by a nut. When the vehicle collides, the driver's knee will hit the adjustment handle. Since the handle is locked, it cannot be displaced when hit, so the collision force between the handle and the driver's knee is relatively large, causing pain or even injury to the driver's knee. Summary of the invention

[0003] The present invention is intended to provide a force-limited steering column adjustment handle to prevent a driver from being injured when the handle collides with the driver.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a force-limited steering wheel column adjustment handle, comprising a mounting sleeve, a mounting column and an adjustment unit, the adjustment unit comprising a guide slider and an adjustment handle, the mounting sleeve has a U-shaped cross-section, the positioning sleeve is provided with a strip through groove, the mounting column passes through the adjustment through groove and is slidably connected to the side wall of the adjustment through groove, a positioning cylinder is threadedly connected to the mounting column, the positioning cylinder passes through the adjustment handle and the guide slider in turn, the adjustment handle is rotatably connected to the positioning cylinder, the guide slider is slidably connected to the positioning cylinder, the side wall of the guide slider is provided with a groove, a limit block located in the groove is fixed on the adjustment handle, the limit block can push the guide slider to the side away from the mounting sleeve; a spring is provided on the side of the guide slider away from the adjustment handle for pressing the adjustment handle toward the side close to the mounting sleeve.

[0005] The beneficial effects of this program are:

[0006] The installation sleeve in this scheme is arranged on the pipe column. At this time, the installation column is located on the side of the pipe column to limit the pipe column. Since the protrusion cooperates with the installation column, the adjustment handle is pressed on the installation sleeve through the spring, so the adjustment handle cannot move, so that the pipe column cannot rotate and move. When the steering wheel needs to be adjusted, the adjustment handle is slowly turned. The adjustment handle drives the guide slider to rotate through the cooperation of the positioning block and the groove, thereby driving the positioning cylinder to rotate relative to the installation column, and adjusting the positioning cylinder to the side away from the installation sleeve. At this time, the spring is extended, and the elastic force on the adjustment handle is reduced, so that the adjustment handle can slide along the strip groove, and the adjustment and rotation space is reserved for the pipe column. Then, it cooperates with the existing pipe column adjustment structure, so that the existing pipe column adjustment structure can adjust the steering wheel. The adjustment handle in this scheme replaces the handle in the existing pipe column adjustment structure. When the adjustment handle is hit, the adjustment handle rotates rapidly under the action of the impact. At this time, the limit block pushes the guide slider to the side away from the installation sleeve. Therefore, the adjustment handle can rotate relative to the guide slider at this time, so the collision force between the adjustment handle and the driver's knee will be reduced, and the driver will not feel excessive pain or be injured.

[0007] Furthermore, the adjustment unit comprises a convex block, which is mounted on the positioning tube and can be adjusted along the axial direction of the positioning tube, and one end of the spring away from the guide sliding block abuts against the convex block.

[0008] The beneficial effects of this solution are as follows: the protrusion in this solution can limit the spring, and when the protrusion is adjusted along the axial direction of the positioning tube, the distance between the protrusion and the mounting sleeve can be adjusted, thereby adjusting the compression amplitude of the spring, so that the elastic force of the spring on the guide slider changes, and finally the pressure between the guide slider and the adjustment handle is changed to ensure that when the adjustment handle is hit and rotated quickly, the positioning block can slide out of the groove and push the guide slider to the side away from the mounting sleeve.

[0009] Furthermore, the protrusion is threadedly connected to the outer wall of the positioning tube.

[0010] The beneficial effect of this solution is that the bump in this solution is easy to adjust.

[0011] Furthermore, the spring is sleeved on the positioning cylinder.

[0012] The beneficial effect of this solution is that the positioning tube guides the spring to prevent the spring from bending and deforming, and ensures that the guide slider is pressed on the adjustment handle under the elastic force of the spring.

[0013] Furthermore, a guide groove is provided on the outer wall of the positioning tube, and the guide groove extends along the axial direction of the positioning tube. A guide block is slidably connected in the guide groove, and the guide block is fixed to the guide sliding block.

[0014] The beneficial effect of this solution is that the guide groove and the guide block cooperate to limit and guide the guide slider, ensuring that the guide slider can only slide along the axial direction of the positioning cylinder and cannot rotate relative to the positioning cylinder.

[0015] Furthermore, a positioning groove is provided on the upper surface of the adjustment handle, and the bottom of the guide sliding block is located in the positioning groove.

[0016] The beneficial effect of this solution is that the positioning groove limits the guide slider to avoid radial offset between the adjustment handle and the guide slider.

[0017] Furthermore, the adjustment handle includes a pressing part and a handle part that are fixedly connected, the pressing part is in contact with the guide slider, the pressing part is in contact with the mounting sleeve, the distance between the handle part and the mounting sleeve is greater than zero, the mounting column passes through the pressing part, and the positioning groove and the protrusion are both located on the pressing part.

[0018] The beneficial effect of this solution is that there is a gap between the handle part and the installation sleeve in this solution, so it is convenient to hold the handle part when the pipe column needs to be adjusted.

[0019] Furthermore, the side wall of the positioning block facing the side wall of the groove is an arc-shaped surface.

[0020] The beneficial effect of this solution is that the side wall where the positioning block in this solution contacts the side wall of the groove has no side ridges, thereby avoiding scratches on the side wall of the groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of an embodiment of the present invention;

[0022] Figure 2 for Figure 1 A stereogram of the regulating unit in FIG.

[0023] Figure 3 for Figure 1 A top view of

[0024] Figure 4 for Figure 1 A three-dimensional diagram of another shape of positioning block. DETAILED DESCRIPTION

[0025] The following is further described in detail through specific implementation methods:

[0026] The reference numerals in the drawings of the specification include: mounting column 1, positioning cylinder 2, guide groove 21, protrusion 3, spring 4, guide slider 5, adjustment handle 6, pressing portion 61, handle portion 62, positioning block 63, mounting sleeve 7, strip through groove 71, and pipe column 8.

[0027] Example

[0028] A force-limited steering column adjustment handle, such as Figure 1As shown, it includes a mounting sleeve 7, a mounting column 1 and an adjustment unit. The cross section of the mounting sleeve 7 is U-shaped. The mounting sleeve 7 is sleeved on the pipe column 8. The mounting sleeve 7 is provided with a strip through groove 71, and the strip through groove 71 is located on the right side of the pipe column 8. The cross section of the mounting column 1 along the axial direction is T-shaped. The rod of the mounting column 1 passes through the strip through groove 71. The length of the relative parts of the mounting column 1 and the upper and lower side walls of the strip through groove 71 in this embodiment is greater than the height, so that the mounting column 1 only slides with the mounting sleeve 7. A positioning cylinder 2 is sleeved on the mounting column 1, and the head of the mounting column 1 abuts against the front end of the mounting sleeve 7. The positioning cylinder 2 is located at the rear side of the mounting sleeve 7 and is threadedly connected to the mounting column 1. The end of the positioning cylinder 2 abuts against the mounting sleeve 7 to position the mounting column 1.

[0029] The adjusting unit includes a guide slider 5, an adjusting handle 6 and a bump 3. The adjusting handle 6 includes a pressing portion 61 and a handle portion 62. Figure 2 and Figure 3 As shown, the positioning cylinder 2 passes through the pressing portion 61, the guide slider 5 and the protrusion 3 in sequence, and the pressing portion 61 and the positioning cylinder 2 are in clearance fit, so that the pressing portion 61 can rotate relative to the positioning cylinder 2. The handle portion 62 has an inverted V-shaped cross section along the vertical direction, and the distance between the lower surface of the handle portion 62 and the mounting sleeve 7 is greater than zero, so that the handle portion 62 is convenient to hold.

[0030] The outer wall of the positioning cylinder 2 is provided with a guide groove 21 along the axial direction, and the inner wall of the guide slider 5 is integrally formed with a guide block. The top of the pressing portion 61 is provided with a positioning groove with an opening facing upward, and the bottom of the guide slider 5 is located in the positioning groove. The bottom of the guide slider 5 is provided with a groove, and a positioning block 63 is welded on the pressing portion 61. The positioning block 63 is located in the groove. The vertical cross-section of the positioning block 63 in this embodiment is semicircular, so the upper surface of the positioning block 63 is an arc surface, which can avoid damage to the side wall of the groove. Figure 4 As shown, the cross section of the positioning block 63 in this embodiment can also be a trapezoidal or triangular shape with an inclined surface, so as to be able to push the guide slider 5 to the side away from the installation sleeve 7.

[0031] The protrusion 3 is threadedly connected to the upper end of the positioning tube 2. A spring 4 is provided between the protrusion 3 and the guide slider 5. The spring 4 is sleeved on the positioning tube 2, and two ends of the spring 4 are respectively against the guide slider 5 and the protrusion 3.

[0032] The specific implementation process is as follows:

[0033] The force-limited steering wheel column 8 adjustment handle in this scheme is used in conjunction with the existing column adjustment structure. At this time, the adjustment handle 6 replaces the handle in the existing column adjustment structure. Initially, the positioning block 63 is located in the groove. At this time, the spring 4 is in a compressed state. The pressing portion 61 is pressed on the mounting sleeve 7 under the elastic force of the spring 4, so that the mounting column 1 will not slide along the strip-shaped through groove 71. When it is necessary to adjust the pipe column 8, the handle part 62 is slowly rotated clockwise with the positioning tube 2 as the rotation center. Under the cooperation of the positioning block 63 and the groove, the pressing part 61 drives the guide slider 5 to rotate synchronously, and then drives the positioning tube 2 to rotate synchronously with the cooperation of the guide block and the guide groove 21, so as to adjust the positioning tube 2 to the side away from the mounting sleeve 7. At this time, the distance between the protrusion 3 and the mounting sleeve 7 increases, the spring 4 is extended, the elastic force of the spring 4 on the guide slider 5 is reduced, and the pressure between the pressing part 61 and the mounting sleeve 7 is reduced. At this time, the mounting column 1 can be slid along the strip groove to the side away from the pipe column 8, reserving adjustment space for the pipe column 8, so that the pipe column 8 can be adjusted under the action of the existing pipe column adjustment structure.

[0034] After the adjustment is completed, the handle portion 62 is slowly rotated in the opposite direction to reset the positioning tube 2 to the side close to the installation sleeve 7, thereby increasing the pressure of the spring 4 on the guide slider 5, so that the pressing portion 61 is again against the installation sleeve 7, and the pipe column 8 is limited again.

[0035] When the driver's knee collides with the handle portion 62, the handle portion 62 rotates rapidly under the action of the collision, the positioning block 63 slides out of the groove, and pushes the guide slider 5 to the side away from the installation sleeve 7. At this time, the spring 4 is compressed by the guide slider 5 again, and the elastic force of the spring 4 on the guide slider 5 increases, so the pressure between the pressing portion 61 and the installation sleeve 7 increases, preventing the installation column 1 from shifting. In this process, since the handle portion 62 can rotate when it is hit, the collision force between the handle portion 62 and the knee is reduced, and the driver will not feel excessive pain or be injured.

[0036] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A force-limited steering column adjustment handle, characterized in that: The invention comprises a mounting sleeve, a mounting column and an adjusting unit, wherein the adjusting unit comprises a guide slider and an adjusting handle, the mounting sleeve has a U-shaped cross section, the mounting sleeve is provided with a strip through slot, the mounting column passes through the adjusting through slot and is slidably connected to the side wall of the adjusting through slot, the length of the relative parts of the mounting column and the upper and lower side walls of the strip through slot is greater than the height, a positioning cylinder is threadedly connected to the mounting column, the positioning cylinder passes through the adjusting handle and the guide slider in sequence, the adjusting handle is rotatably connected to the positioning cylinder, the guide slider is slidably connected to the positioning cylinder, the side wall of the guide slider is provided with a groove, the adjusting handle is fixed with a positioning block located in the groove, the positioning block can push the guide slider to the side away from the mounting sleeve; the side of the guide slider away from the adjusting handle is provided with a spring for pressing the adjusting handle to the side close to the mounting sleeve; The spring is sleeved on the positioning cylinder, and a guide groove is arranged on the outer wall of the positioning cylinder. The guide groove extends along the axial direction of the positioning cylinder, and a guide block is slidably connected in the guide groove, and the guide block is fixed to the guide slide block.

2. The force-limited steering column adjustment handle according to claim 1, characterized in that: The adjusting unit comprises a convex block which is mounted on the positioning cylinder and can be adjusted along the axial direction of the positioning cylinder. One end of the spring away from the guide sliding block abuts against the convex block.

3. The force-limited steering column adjustment handle according to claim 2, characterized in that: The protrusion is threadedly connected to the outer wall of the positioning tube.

4. The force-limited steering column adjustment handle according to claim 1, characterized in that: A positioning groove is arranged on the upper surface of the adjusting handle, and the bottom of the guide sliding block is located in the positioning groove.

5. The force-limited steering column adjustment handle according to claim 4, characterized in that: The adjustment handle includes a pressing part and a handle part which are fixedly connected. The pressing part is in contact with the guide slider, the pressing part is in contact with the mounting sleeve, the distance between the handle part and the mounting sleeve is greater than zero, the mounting column passes through the pressing part, and the positioning groove and the protrusion are both located on the pressing part.

6. The force-limited steering column adjustment handle according to claim 1, characterized in that: The side wall of the positioning block facing the side wall of the groove is an arc-shaped surface.

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