Mechanical steering column clamping mechanism
By using the movement of limiting blocks, movable blocks and handle blocks in the steering column clamping mechanism, the dummy clamping problem is solved, achieving more accurate and stable column position adjustment, reducing costs.
Patent Information
- Application Number
- CN202420815822.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-19
AI Technical Summary
Traditional steering columns are prone to false clamping during clamping, resulting in poor accuracy of the adjustment of the column position.
A mechanical steering column clamping mechanism is designed to achieve tightening and relaxation of screws through the movement of limiting blocks, movable blocks and handle blocks, ensuring the accurate state of the tube column when clamping or loosening. Avoid false clipping problems.
Improves accuracy of column position adjustment, increases stability of steering columns, and makes the overall design more compact and cost-effective.
Smart Images
Figure CN222179616U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steering columns, in particular to a mechanical steering column clamping mechanism. Background Art
[0002] The traditional steering column is mainly adjusted by a handle. The adjustment process is: loosen the column by turning the handle. After the column position is adjusted, the handle is turned upward to clamp the column while fixing the column position. In this clamping process, the column may be in a virtual clamp state due to insufficient turning of the handle. In the virtual clamp state, the column may move downward, resulting in poor accuracy in column position adjustment.
[0003] Therefore, it is necessary to design a mechanical steering column clamping mechanism to solve the problem of virtual clamping of the column and ensure the accuracy of column position adjustment. Summary of the invention
[0004] The utility model aims to overcome the deficiencies of the prior art and provides a mechanical steering column clamping mechanism to solve the problem of virtual column clamping and ensure the accuracy of column position adjustment.
[0005] In order to achieve the above-mentioned purpose, the utility model is a mechanical steering column clamping mechanism, comprising a column, a positioning screw, a limiting pressure block, a movable pressure block, a handle pressure block, and a handle. The inner surface of the limiting pressure block is installed on the outer side of the column, and a groove 1 with a semicircular cross-section is provided in the middle of the outer surface of the limiting pressure block. The inner and outer surfaces of the movable pressure block are both inclined surfaces, and an axis 1 with a semicircular cross-section and a groove 2 with a semicircular cross-section are respectively provided in the middle of the inner and outer surfaces. The axis 1 is rotatably installed in the groove 1. The inner surface of the handle pressure block is an inclined surface, and an axis 2 with a semicircular cross-section is provided on the inner surface. The axis 2 is rotatably installed in the groove 2. A handle is installed on the side of the handle pressure block. The positioning screw passes through the handle pressure block, the movable pressure block, the limiting pressure block, and the column in sequence and is fixed.
[0006] The outer side of the pipe column is provided with a mounting groove, the inner surface of the limiting pressure block is provided with a boss, and the boss is embedded in the mounting groove.
[0007] The middle thickness of the cross section of the movable pressing block and the cross section of the handle pressing block is greater than the thickness at both ends.
[0008] A limiting structure is provided on an end of the inner surface of the handle pressing block away from the handle.
[0009] The limiting structure abuts against the end of the movable pressing block or is separated from the movable pressing block.
[0010] The outer surface of the limiting pressing block is an inclined surface or a flat surface.
[0011] Compared with the prior art, the utility model realizes the tightening and loosening of the screws through the movement of three pressure blocks, thereby realizing the change of the two states of clamping or loosening the pipe column, avoiding the problem of virtual clamping of the pipe column; the movement stroke of the pressure block is determined, which increases the stability of the steering column and makes the steering column as a whole more compact and lower in cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a structural schematic diagram of the utility model.
[0013] Figure 2 It is an exploded view of the utility model.
[0014] Figure 3 It is a schematic diagram of the utility model in the state of loosening the pipe column.
[0015] Figure 4 It is a schematic diagram of the utility model in the state of clamping the pipe column. DETAILED DESCRIPTION
[0016] The utility model is now further described with reference to the accompanying drawings.
[0017] See also Figure 1 , Figure 2 The utility model is a mechanical steering column clamping mechanism, comprising a column, a positioning screw, a limiting pressure block, a movable pressure block, a handle pressure block, and a handle. The inner surface of the limiting pressure block 3 is installed on the outer side of the column 1, and a groove 32 with a semicircular cross section is provided in the middle of the outer surface of the limiting pressure block 3. The inner and outer surfaces of the movable pressure block 4 are both inclined surfaces, and a shaft 41 with a semicircular cross section and a groove 2 with a semicircular cross section are respectively provided in the middle of the inner and outer surfaces. The shaft 1 41 is rotatably installed in the groove 1 32. The inner surface of the handle pressure block 5 is an inclined surface, and a shaft 2 51 with a semicircular cross section is provided on the inner surface. The shaft 2 51 is rotatably installed in the groove 2 42. A handle 6 is installed on the side of the handle pressure block 5. The positioning screw 2 passes through the handle pressure block 5, the movable pressure block 4, the limiting pressure block 3, and the column 1 in sequence and is fixed.
[0018] In order to facilitate the fixation of the limiting pressure block 3 , a mounting groove 11 is provided on the outer side of the pipe column 1 , and a boss 31 is provided on the inner surface of the limiting pressure block 3 , and the boss 31 is embedded in the mounting groove 11 .
[0019] In order to facilitate the transfer of the movable pressing block 4 and the handle pressing block 5, the middle thickness of the cross section of the movable pressing block 4 and the handle pressing block 5 is greater than the thickness at both ends.
[0020] A limiting structure 52 is provided on the inner surface of the handle pressing block 5 at one end away from the handle 6, and the limiting structure 52 abuts against the end of the movable pressing block 4 or is separated from the movable pressing block 4. The limiting structure 52 is provided to prevent the handle 6 from being subjected to excessive force and causing the handle pressing block 5 to rotate beyond the limit position.
[0021] The outer surface of the limiting pressing block 3 is an inclined surface or a flat surface.
[0022] When the utility model is working, Figure 3 As shown, the handle 6 is pushed downward, and the handle 6 drives the second axis 51 of the handle pressing block 5 to rotate counterclockwise in the second groove 42 of the movable pressing block 4, so that the right side of the inner surface of the handle pressing block 5 contacts the right side of the outer surface of the movable pressing block 4. At the same time, the center of mass of the handle pressing block 5 tilts to the left, causing the first axis 41 of the movable pressing block 4 to rotate clockwise in the first groove 32 of the limiting pressing block 3, so that the left side of the inner surface of the movable pressing block 4 contacts the left side of the outer surface of the limiting pressing block 3. At this time, the maximum radius A of the movable pressing block 4 and the maximum radius B of the handle pressing block 5 do not act on the same line, there is a gap between the head of the positioning screw 2 and the pipe column 1, and the pipe column 1 is in a loose state.
[0023] like Figure 4 As shown, the handle 6 is pushed downward, and the handle 6 drives the second axis 51 of the handle pressing block 5 to rotate clockwise in the second groove 42 of the movable pressing block 4, so that the left side of the inner surface of the handle pressing block 5 contacts the left side of the outer surface of the movable pressing block 4. At the same time, the center of mass of the handle pressing block 5 tilts to the right, causing the first axis 41 of the movable pressing block 4 to rotate counterclockwise in the first groove 32 of the limit pressing block 3, so that the right side of the inner surface of the movable pressing block 4 contacts the right side of the outer surface of the limit pressing block 3. At this time, the maximum radius A of the movable pressing block 4 and the maximum radius B of the handle pressing block 5 act on the same line, the head of the positioning screw 2 is tightly matched with the pipe column 1, and the pipe column 1 is in a clamped state.
[0024] The utility model realizes the tightening and loosening of the screws through the movement of three pressure blocks, thereby realizing the change of the two states of clamping or loosening the pipe column, avoiding the problem of virtual clamping of the pipe column; the movement stroke of the pressure block is determined, which increases the stability of the steering column and makes the steering column more compact and lower in cost as a whole.
Claims
1. A mechanical steering column clamping mechanism, comprising a column, a positioning screw, a limit pressure block, a movable pressure block, a handle pressure block, and a handle, characterized in that: The inner surface of the limit pressure block (3) is mounted on the outer side of the pipe column (1), and a groove 1 (32) with a semicircular cross section is provided in the middle of the outer surface of the limit pressure block (3). The inner surface and outer surface of the movable pressure block (4) are both inclined surfaces, and a shaft 1 (41) with a semicircular cross section and a groove 2 (42) with a semicircular cross section are provided in the middle of the inner surface and the outer surface respectively. The shaft 1 (41) is rotatably mounted in the groove 1 (32). The inner surface of the handle pressure block (5) is an inclined surface, and a shaft 2 (51) with a semicircular cross section is provided on the inner surface. The shaft 2 (51) is rotatably mounted in the groove 2 (42). A handle (6) is mounted on the side of the handle pressure block (5). The positioning screw (2) passes through the handle pressure block (5), the movable pressure block (4), the limit pressure block (3), and the pipe column (1) in sequence and is fixed.
2. A mechanical steering column clamping mechanism according to claim 1, characterized in that: The outer side of the pipe column (1) is provided with a mounting groove (11), the inner surface of the limiting pressure block (3) is provided with a boss (31), and the boss (31) is embedded in the mounting groove (11).
3. A mechanical steering column clamping mechanism according to claim 1, characterized in that: The middle thickness of the cross section of the movable pressing block (4) and the cross section of the handle pressing block (5) is greater than the thickness at both ends.
4. A mechanical steering column clamping mechanism according to claim 1, characterized in that: A limiting structure (52) is provided on an end portion of the inner surface of the handle pressing block (5) away from the handle (6).
5. A mechanical steering column clamping mechanism according to claim 4, characterized in that: The limiting structure (52) abuts against the end of the movable pressing block (4) or is separated from the movable pressing block (4).
6. A mechanical steering column clamping mechanism according to claim 1, characterized in that: The outer surface of the limiting pressure block (3) is an inclined surface or a flat surface.