Steering column adjusting device

Abstract

The utility model discloses a steering column adjusting device which comprises an upper column, a lower column, an adjusting assembly and clamping plates, the upper column is coaxially arranged on the peripheral wall of part of the lower column in a sleeved mode, the clamping plates are clamped on the two side walls of the upper column, the upper column is provided with a first sliding groove in the axial direction, and the upper column is provided with a second sliding groove in the axial direction. The adjusting assembly movably fixes the upper pipe column and the lower pipe column through the clamping plate, and the diameter of the upper pipe column is gradually reduced from the end close to the lower pipe column to the end away from the lower pipe column. The upper pipe column is arranged in a micro-cone shape, even if the length of the portion, located in the upper pipe column, of the lower pipe column is short, the upper pipe column at the position is large in diameter, the clamping plate can tightly clamp the upper pipe column and the lower pipe column, it is guaranteed that the clamping force of the clamping plate in the axial displacement process of the upper pipe column is consistent, and better use hand feeling is brought to a user.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile steering, specifically relates to steering column adjusting device. BACKGROUND

[0002] The automobile steering column component is one of important constituent components in the steering system, and the steering column can be divided into non-adjustable column (fixed type), two-way adjustable column (up and down direction adjustment) and four-way adjustable column (up and down and front and back direction adjustment) according to different adjustment modes. The adjustment mode of steering column of steering wheel is various, mainly to meet the comfort and safety requirements of the driver, Chinese patent. Chinese patent CN201320878528.X discloses a whole steering column, and the mutually matched adjusting cam is arranged between the compression sheet of adjusting handle and adjusting support, by rotating the adjusting handle, the relative rotation of the pair of meshing adjusting cams leads to the lift reduction, the axial gap of the middle fixed surface of the column body and the adjusting support along the pin shaft is increased, the column body is unlocked, at this time, the column body can be axially or radially adjusted. When axially adjusting, the middle first sliding groove on the column body is axially displaced relative to the pin shaft, and the lower first sliding groove on the column body is axially displaced relative to the rivet. The above scheme realizes the axial movement of the column body, but the middle fixed surface of the column body is unevenly stressed in the process, the locking force of the adjusting handle is greatly different, and the user experience is affected. SUMMARY

[0003] In view of the technical problem that the axial movement of the column body leads to the great difference of the locking force of the adjusting handle, the utility model provides a steering column adjusting device, the upper column is arranged in a micro-cone shape, even if the lower column is short in length in the upper column, the upper column is clamped by the clamping plate due to the large diameter, the clamping plate can tightly clamp the upper column and the lower column, and the clamping force of the clamping plate in the axial displacement of the upper column is consistent.

[0004] The utility model adopts the technical scheme as follows: a steering column adjusting device, including upper column, lower column, adjusting assembly and clamping plate, the coaxial sleeve of upper column is arranged on the outer wall of part lower column, the clamping plate is clamped in the two side walls of upper column, the first sliding groove is arranged in the axial direction of upper column, the adjusting assembly movably fixes upper column and lower column through clamping plate, the diameter of upper column gradually reduces from the end close to lower column to the end away from lower column.

[0005] Optionally, the single-side slope of the upper column is 0.5-1 °.

[0006] Optionally, the clamping plate comprises a first clamping plate, a fixed plate and a second clamping plate which are connected in sequence at an angle, the upper pipe column is provided with a first connecting block and a second connecting block which is provided correspondingly to the first connecting block, the first connecting block and the second connecting block are respectively provided with the first sliding groove, the first clamping plate is located on the side of the first connecting block away from the second connecting block, the second clamping plate is located on the side of the second connecting block away from the first connecting block, and the first clamping plate and the second clamping plate are clamped to the upper pipe column through the adjusting assembly.

[0007] Optionally, the adjusting assembly comprises a screw rod, a nut, a handle, a first cam and a second cam, the screw rod passes through the handle, the first cam, the second cam, the first clamping plate, the first sliding groove, the second clamping plate and the nut in sequence, the handle is fixedly connected with the first cam, the first cam is movably connected with the second cam, and the screw rod is threadedly connected with the nut.

[0008] Optionally, a plurality of protrusions are arranged at intervals on the side of the first cam facing the second cam, a plurality of grooves are arranged at intervals on the side of the second cam facing the first cam, and the protrusions and the grooves are movably connected in one-to-one correspondence.

[0009] Optionally, a clamping protrusion is arranged on the side of the first cam away from the second cam in the radial direction, and the handle is provided with a clamping groove matched with the clamping protrusion.

[0010] Optionally, the first clamping plate is provided with a second sliding groove which is arranged at an angle with the first sliding groove, and the second cam is provided with a sliding block which is slidably connected with the second sliding groove.

[0011] Optionally, the fixed plate is provided with a mounting hole for being connected with a vehicle frame.

[0012] The utility model discloses beneficial effects are: the length of the lower pipe column in the upper pipe column is longer, the clamping force of the clamping plate to the upper pipe column is greater, the force required for pulling the adjusting assembly is greater, the length of the lower pipe column in the upper pipe column is shorter, the clamping force of the clamping plate to the upper pipe column is smaller, the force required for pulling the adjusting assembly is smaller, the upper pipe column in the embodiment is provided with a slight taper, even if the length of the lower pipe column in the upper pipe column is shorter, the upper pipe column here is larger in diameter, and the clamping plate can tightly clamp the upper pipe column and the lower pipe column, guarantee that the clamping force of the clamping plate in the axial displacement of the upper pipe column is consistent, and better use feeling is brought to the user. ACCURATE DRAWINGS

[0013] Fig. 1 The structure diagram of the steering column adjusting device is provided for the utility model embodiment;

[0014] Fig. 2 The taper diagram of the upper pipe column of the steering column adjusting device is provided for the utility model embodiment;

[0015] Fig. 3 This is a schematic diagram showing the cooperation between the upper column and the handle of the steering column adjustment device proposed in this embodiment of the utility model.

[0016] The labels in the attached figures are as follows: 1. Upper tube column; 2. Lower tube column; 3. Clamping plate; 4. First slide groove; 5. First clamping plate; 6. Fixing plate; 7. Second clamping plate; 8. First connecting block; 9. Second connecting block; 10. Screw; 11. Nut; 12. Handle; 13. First cam; 14. Second cam; 15. Protrusion; 16. Groove; 17. Locking protrusion; 18. Locking groove; 19. Second slide groove; 20. Slider. Detailed Implementation

[0017] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0018] like Figs. 1 to 3 As shown, this embodiment discloses a steering column adjustment device, including an upper column 1, a lower column 2, an adjustment assembly, and a clamping plate 3. The upper column 1 is coaxially sleeved on the outer peripheral wall of part of the lower column 2. The clamping plate 3 clamps the two side walls of the upper column 1. The upper column is provided with a first sliding groove 4 along the axial direction. The adjustment assembly movably fixes the upper column and the lower column 2 through the clamping plate 3. The diameter of the upper column 1 gradually decreases from the end closer to the lower column 2 to the end farther away from the lower column 2. The longer the lower tube column 2 is within the upper tube column 1, the greater the clamping force of the clamping plate 3 on the upper tube column 1, and the greater the force required to operate the adjustment component. Conversely, the shorter the length of the lower tube column 2 within the upper tube column 1, the smaller the clamping force of the clamping plate 3 on the upper tube column 1, and the less force required to operate the adjustment component. In this embodiment, the upper tube column 1 is micro-conical. Even if the length of the lower tube column 2 within the upper tube column 1 is relatively short, the larger diameter of the upper tube column 1 allows the clamping plate 3 to provide a tighter clamping effect on both the upper and lower tube columns 1, ensuring consistent clamping force of the clamping plate 3 during the axial displacement of the upper tube column 1, thus providing a better user experience. The larger diameter of the upper tube column here refers to the thicker wall thickness of the upper tube column, and the diameter of the orifice through which the lower tube column moves is consistent at both ends. Fig. 2 As shown, the single-sided slope of the upper tubing 1 is 0.5~1°. The single-sided slope of the upper tubing 1 can be 0.5°, 0.8°, 0.9° or 1°.

[0019] like Fig. 1As shown, the clamping plate comprises a first clamping plate 5, a fixed plate 6 and a second clamping plate 7 connected in sequence, the upper pipe column 1 is provided with a first connecting block 8 and a second connecting block 9 corresponding to the first connecting block 8, the first connecting block 8 and the second connecting block 9 are respectively provided with the first sliding groove 4, the first clamping plate 5 is located on the side of the first connecting block 8 away from the second connecting block 9, the second clamping plate 7 is located on the side of the second connecting block 9 away from the first connecting block 8, and the first clamping plate 5 and the second clamping plate 7 clamp the upper pipe column 1 through the adjusting assembly. The first connecting block 8 and the second connecting block 9 can be integrally cast with the upper pipe column 1, and the first sliding groove 4 is consistent with the axial direction of the upper pipe column 1.

[0020] As shown in Fig. 1 and 3 The adjusting assembly comprises a screw rod 10, a nut 11, a handle 12, a first cam 13 and a second cam 14, the screw rod 10 passes through the handle 12, the first cam 13, the second cam 14, the first clamping plate 5, the first sliding groove 4, the second clamping plate 7 and the nut 11 in sequence, the handle 12 is fixedly connected with the first cam 13, the first cam 13 is movably connected with the second cam 14, and the screw rod 10 is threadedly connected with the nut 11. A plurality of protrusions 15 are arranged on one side of the first cam 13 away from the second cam 14, a plurality of grooves 16 are arranged on one side of the second cam 14 away from the first cam 13, and the protrusions 15 and the grooves 16 movably match one by one. A clamping protrusion 17 is arranged on the side of the first cam 13 away from the second cam 14 in the radial direction, and the handle 12 is provided with a clamping groove 18 matched with the clamping protrusion 17. The first clamping plate 5 is provided with a second sliding groove 19, the second sliding groove 19 is arranged at an angle with the first sliding groove 4, and the second cam 14 is provided with a sliding block 20 slidably matched with the second sliding groove 19. The first cam 13 is press-fitted with the screw rod 10, when the handle 12 is rotated, the handle 12 drives the first cam 13 to rotate, since the second cam 14 only moves along the second sliding groove 19, the first cam 13 rotates relative to the second cam 14, when the protrusion 15 on the first cam 13 enters the groove 16, the distance between the first cam 13 and the second cam 14 becomes smaller, the second cam 14 and the nut 11 no longer press the first clamping plate 5 and the second clamping plate 7, so that the upper pipe column 1 can move axially along the clamping plate 3 through the first sliding groove 4, or move at an angle along the clamping plate 3 through the second sliding groove 19, when the upper pipe column 1 is adjusted to the required position and angle, the handle 12 is rotated to make the protrusion 15 on the first cam 13 rotate out of the groove 16 of the second cam 14, the distance between the first cam 13 and the second cam 14 increases, and the second cam 14 and the nut 11 clamp the upper pipe column 1 in the middle, so that the upper pipe column 1 cannot move. The fixed plate 6 is provided with a mounting hole for connecting with the vehicle frame. The clamping plate 3 is fixedly installed on the vehicle frame.

[0021] It can be understood that the specific embodiments described above are only used to explain the utility model, and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for the convenience of description. Multiple technical solutions in the same embodiment and multiple technical solutions of different embodiments can be arranged and combined to form new technical solutions without contradiction or conflict. Any equivalent structural transformation using the contents of the utility model specification and drawings, direct or indirect application in other related technical fields, are also included in the protection scope of the utility model.

Claims

1. A steering column adjustment device characterized by, The utility model provides a pipe column, including upper pipe column, lower pipe column, adjusting assembly and clamping plate, the coaxial sleeve of upper pipe column is set in the outer wall of partial lower pipe column, the clamping plate is clamped in the two side walls of upper pipe column, the first sliding slot is equipped in the upper pipe column along the axial direction, and the adjusting assembly is with the upper pipe column and lower pipe column through clamping plate movable fixed, the diameter of upper pipe column gradually reduces from the end close to lower pipe column to the end away from lower pipe column.

2. The steering column adjustment device according to claim 1, characterized in that The single-side slope of the upper pipe column is 0.5-1°.

3. The steering column adjustment device according to claim 1, characterized in that The clamping plate includes first clamping plate, fixed plate and second clamping plate that are connected in sequence, the upper pipe column is equipped with first connecting block and the second connecting block that is correspondingly arranged with the first connecting block, the first connecting block and the second connecting block are equipped with the first sliding slot respectively, the first clamping plate is located on the side of the first connecting block away from the second connecting block, the second clamping plate is located on the side of the second connecting block away from the first connecting block, and the first clamping plate and the second clamping plate are clamped through the adjusting assembly.

4. The steering column adjustment device according to claim 3, characterized in that The adjusting assembly includes screw rod, nut, handle, first cam and second cam, the screw rod passes through handle, first cam, second cam, first clamping plate, first sliding slot, second clamping plate and nut in sequence, the handle is fixedly connected with the first cam, the first cam is movably connected with the second cam, and the screw rod is threadedly connected with the nut.

5. The steering column adjustment device according to claim 4, characterized in that The one side of the first cam towards the second cam is equipped with a plurality of protrusions at intervals, the one side of the second cam towards the first cam is equipped with a plurality of grooves at intervals, and the protrusions and the grooves are movably connected one by one.

6. The steering column adjustment device according to claim 4, characterized in that The one side of the first cam away from the second cam is equipped with a clamping protrusion in the radial direction, and the handle is equipped with a clamping groove matched with the clamping protrusion.

7. The steering column adjustment device according to claim 4, characterized in that The first clamping plate is equipped with a second sliding slot, the second sliding slot is arranged at an angle with the first sliding slot, the second cam is equipped with a sliding block slidably matched with the second sliding slot.

8. The steering column adjustment device according to claim 3, characterized in that The fixed plate is equipped with a mounting hole for being connected with a vehicle frame. The utility model discloses a pipe column, including upper pipe column, lower pipe column, adjusting assembly and clamping plate, the coaxial sleeve of upper pipe column is set in the outer wall of partial lower pipe column, the clamping plate is clamped in the two side walls of upper pipe column, the first sliding slot is equipped in the upper pipe column along the axial direction, and the adjusting assembly is with the upper pipe column and lower pipe column through clamping plate movable fixed, the diameter of upper pipe column gradually reduces from the end close to lower pipe column to the end away from lower pipe column.

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