Steering column for balancing locking force of handle

Abstract

The utility model relates to a steering column for balancing the locking force of a handle, and belongs to the technical field of automobile steering equipment. The steering column for balancing the locking force of the handle comprises an upper column, a lower column, a plastic spacer bush and a locking assembly, a stepped circular surface A and a stepped circular surface B are arranged on the circumferential surface of the lower end of the lower tubular column; an upper pipe column is inserted into the upper end of the lower pipe column; plastic spacer bushes are mounted on the stepped circular surface A and the stepped circular surface B in the upper tubular column; a locking assembly is arranged outside the lower end of the upper tubular column; an expansion joint is arranged outside the lower end of the upper pipe column; and the expansion joint corresponds to the locking assembly. The steering column capable of balancing the locking force of the handle is compact in structure and ingenious in design, the difference of the locking force of the handle when the automobile steering column is in different working states is greatly reduced, and therefore the purpose of improving the operation quality of the handle of the automobile steering column is achieved.

Description

Technical Field

[0001] The utility model relates to a steering column with a balanced handle locking force, belonging to the technical field of automobile steering equipment. Background Art

[0002] The automobile steering column is an important part of the automobile steering system. The existing automobile steering column, such as the mechanical steering mechanism disclosed in the utility model patent with the authorization announcement number CN219077287U, has a cylindrical structure design on the surface of the lower column. After adopting this design, when the upper column tube and the lower column tube are mutually contracted and adjusted to different positions, the surface position of the lower column inserted into the lower column tube and in contact with the lower column tube has a large difference. Under the influence of this difference, the locking assembly of the automobile steering column wants to lock the upper column tube and the lower column tube, and there is a large difference in the locking force of the handle, which affects the quality of the handle operation. Therefore, it is necessary to develop a new steering column to solve the above problems of the existing steering column. Summary of the invention

[0003] The utility model aims to provide a steering column with a compact structure and ingenious design, which can solve the problem of large differences in handle locking forces in existing steering columns and balance the handle locking forces.

[0004] The technical solution of the utility model is:

[0005] A steering column for balancing the locking force of a handle, comprising an upper column, a lower column, a plastic spacer and a locking assembly; characterized in that: the circumferential surface of the lower end of the lower column is provided with a stepped circular surface A and a stepped circular surface B; the upper column is inserted into the upper end of the lower column; the stepped circular surface A and the stepped circular surface B inside the upper column are provided with a plastic spacer; the locking assembly is installed on the outside of the lower end of the upper column; the lower end of the upper column is provided with an expansion joint; the expansion joint corresponds to the locking assembly.

[0006] The length of the stepped circular surface A is consistent with the length of the stepped circular surface B; the outer diameter of the stepped circular surface A is greater than the outer diameter of the stepped circular surface B.

[0007] The expansion joint is in an I-shaped structure.

[0008] The stepped circular surface B is provided with a positioning countersunk hole.

[0009] A telescopic opening is arranged on one side of the plastic spacer; a positioning protrusion is arranged inside the plastic spacer; and the positioning protrusion is connected with the positioning countersunk hole by snapping.

[0010] The advantages of the utility model are:

[0011] The steering column with balanced handle locking force has a compact structure and an ingenious design, and adopts a structural design of a stepped circular surface A and a stepped circular surface B. After adopting this design, when the steering column is fully in an extended state, the stepped circular surface B of the lower column is the main force-bearing position; when the steering column is fully in a retracted state, the stepped circular surface A of the lower column is the main force-bearing position; and the stepped circular surface A and the stepped circular surface B are of the same length, so that the difference in handle locking force when the automobile steering column is in different working states can be greatly reduced, thereby achieving the purpose of improving the operation quality of the automobile steering column handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the utility model after removing the locking assembly;

[0014] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0015] Figure 4 This is a schematic diagram of the structure of the utility model without the upper pipe column;

[0016] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0017] Figure 6 This is a schematic diagram of the structure of the lower pipe string of the utility model;

[0018] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at E in the middle;

[0019] Figure 8 It is a schematic diagram of the structure of the utility model in an extended state;

[0020] Fig. 9 for Figure 8 Schematic diagram of the enlarged structure at C in the middle;

[0021] Fig.10 It is a schematic diagram of the structure of the utility model in a contracted state;

[0022] Fig.11 for Fig.10 Schematic diagram of the enlarged structure at D in the middle.

[0023] In the figure: 1. lower pipe column; 2. stepped circular surface A; 3. stepped circular surface B; 4. upper pipe column; 5. plastic spacer; 6. locking assembly; 7. expansion joint; 8. positioning countersunk hole; 9. expansion opening; 10. positioning protrusion. DETAILED DESCRIPTION

[0024] The steering column for balancing the locking force of a handle comprises an upper column 4, a lower column 1, a plastic spacer 5 and a locking assembly 6.

[0025] The lower end circumferential surface of the lower pipe column 1 is provided with a stepped circular surface A2 and a stepped circular surface B3 (see the appendix of the specification). Figure 6 and 7 ).

[0026] The length of the stepped circular surface A2 is consistent with the length of the stepped circular surface B3; the outer diameter of the stepped circular surface A2 is larger than the outer diameter of the stepped circular surface B3. A positioning countersunk hole 8 is provided on the stepped circular surface B3 (see the attached manual). Figure 6 and 7 ).

[0027] The upper end of the lower pipe column 1 is inserted with the upper pipe column 4; the stepped circular surface A2 and the stepped circular surface B3 inside the upper pipe column 4 are equipped with a plastic spacer 5 (see the attached manual Figure 4 and 5 A telescopic opening 9 is provided on one side of the plastic spacer 5 ; a positioning protrusion 10 is provided inside the plastic spacer 5 ; the positioning protrusion 10 is connected with the positioning countersunk hole 8 by snapping.

[0028] The purposes of setting the plastic spacer 5 in this way are: first, when the plastic spacer 5 is subjected to force, the plastic spacer 5 can shrink with the cooperation of the telescopic opening 9; second, the plastic spacer 5 can maintain a fixed connection with the lower pipe column 1 with the cooperation of the positioning protrusion 10, thereby avoiding the problem of separation between the plastic spacer 5 and the lower pipe column 1.

[0029] The lower end of the upper pipe column 4 is provided with a locking assembly 6 (see the attached manual). Figure 1 ). The locking assembly 6 is an existing structure. When its handle is pulled, the locking assembly 6 can clamp the upper pipe column 4.

[0030] The lower end of the upper pipe column 4 is provided with an expansion joint 7 in an I-shaped structure (see the attached manual). Figure 2 and 3 ); the expansion joint 7 corresponds to the locking assembly 6.

[0031] When the steering column of the balance handle locking force is in the extended state, only the stepped circular surface B3 of the lower column 1 is inserted into the interior of the upper column 4 (see the attached manual). Figure 8 ). In this way, when the handle of the locking assembly 6 is pulled to compress the upper pipe column 4 and the plastic spacer 5, the lower pipe column 1 can be pressed tightly, so that the lower pipe column 1 and the upper pipe column 4 remain relatively fixed. In this process, the stepped circular surface B3 of the lower pipe column 1 is the main force-bearing part.

[0032] When the steering column, which balances the locking force of the handle, is in a retracted state, the stepped circular surface A2 and the stepped circular surface B3 of the lower column 1 are inserted into the interior of the upper column 4 (see the attached manual). Fig.10 and 11 ). Thus, when the handle of the locking assembly 6 is pulled to compress the upper pipe column 4 and the plastic spacer 5, the lower pipe column 1 can be pressed tightly, so that the lower pipe column 1 and the upper pipe column 4 remain relatively fixed. In this process, since the outer diameter of the stepped circular surface A2 is larger than the outer diameter of the stepped circular surface B3, the stepped circular surface A2 of the lower pipe column 1 is the main force-bearing part.

[0033] The steering column with balanced handle locking force has a compact structure and ingenious design, and adopts a structural design of a stepped circular surface A2 and a stepped circular surface B3. After adopting this design, when the steering column is fully in an extended state, the stepped circular surface B3 of the lower column 1 is the main force-bearing position; when the steering column is fully in a retracted state, the stepped circular surface A2 of the lower column 1 is the main force-bearing position; and the stepped circular surface A2 and the stepped circular surface B3 are of the same length, so that the difference in handle locking force when the automobile steering column is in different working states can be greatly reduced, thereby achieving the purpose of improving the operation quality of the automobile steering column handle.

Claims

1. A steering column with a balanced handle locking force, comprising an upper column (4), a lower column (1), a plastic spacer (5) and a locking assembly (6); characterized in that: The lower end circumferential surface of the lower tube column (1) is provided with a stepped circular surface A (2) and a stepped circular surface B (3); the upper end of the lower tube column (1) is inserted with an upper tube column (4); the stepped circular surface A (2) and the stepped circular surface B (3) inside the upper tube column (4) are provided with a plastic spacer (5); the lower end of the upper tube column (4) is provided with a locking assembly (6); the lower end of the upper tube column (4) is provided with an expansion joint (7); the expansion joint (7) corresponds to the locking assembly (6).

2. A steering column with balanced handle locking force according to claim 1, characterized in that: The length of the stepped circular surface A (2) is consistent with the length of the stepped circular surface B (3); the outer diameter of the stepped circular surface A (2) is greater than the outer diameter of the stepped circular surface B (3).

3. A steering column with balanced handle locking force according to claim 1, characterized in that: The expansion joint (7) is in an "I"-shaped structure.

4. A steering column with balanced handle locking force according to claim 1, characterized in that: The stepped circular surface B (3) is provided with a positioning countersunk hole (8).

5. A steering column with balanced handle locking force according to claim 4, characterized in that: A telescopic opening (9) is provided on one side of the plastic spacer (5); a positioning protrusion (10) is provided inside the plastic spacer (5); and the positioning protrusion (10) is snap-connected with the positioning countersunk hole (8).

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