Locking force assembly of automobile steering column

Abstract

The utility model relates to a locking force assembly of an automobile steering column, and belongs to the technical field of automobile steering device part equipment. The locking force assembly of the automobile steering column comprises a handle, a connecting rod, a locking block A, a locking block B, a fixed friction plate, a support, an end face bearing, a movable friction plate, an upper column and an adjusting nut. An upper pipe column is arranged on the inner side of the support, and a connecting rod is inserted into the upper pipe column. One end of the connecting rod penetrates through the bracket and then is provided with a handle; a locking block A is arranged on the inner side of the handle; a locking block B is mounted on the bracket on one side of the locking block A; the locking block A is in contact connection with the locking block B; the other end of the connecting rod penetrates through the support and then is provided with an adjusting nut. And a fixed friction plate is arranged on the bracket on the inner side of the adjusting nut. The locking force assembly of the automobile steering column is compact in structure and ingenious in design, the problem that the locking force of an existing steering gear is relatively low is solved, and the using requirement of the automobile steering column is met.

Description

Technical Field

[0001] The utility model relates to a locking force component of an automobile steering column and belongs to the technical field of automobile steering gear parts and equipment. Background Art

[0002] When a car is driving normally, turning left, turning right, and driving in a straight line are the three most common basic movements of the car. To ensure the smooth driving of the car, there is a set of mechanisms between the steering wheels of the car to complete the driving trajectory of the car. This mechanism that completes the flexible change of the driving direction of the car is called the steering system of the car. It is connected to the steering wheel in the car cab in a rigid or flexible way and is directly controlled by the driver.

[0003] In addition to the main function of controlling the direction of the vehicle, the electric column steering system also has some additional functions. In order to adapt to the driving comfort of people of different heights and weights, the steering part of many cars is designed to be a structure that can be adjusted in multiple directions, namely, a locking force component. The locking force component of the existing automobile steering column, such as the utility model patent with the authorization announcement number CN215475334U, discloses an adjustment mechanism in an automobile steering column that improves the adjustment stability and collapse force. When working, the handle drives the connecting rod and the locking block A and the locking block B to rotate relative to each other, so that the connecting rod squeezes the locking bracket with the cooperation of the plane needle bearing and the washer, thereby achieving the purpose of locking the steering column.

[0004] Although the existing method meets the use requirements to a certain extent, it relies on the friction between a single washer and the bracket to achieve locking, and its holding force is between 500~800N. However, for some customers with special requirements, the angle holding force is required to be greater than 3000N. The existing structure cannot meet this requirement, so it is necessary to develop a new locking force component to solve the problem of relatively low locking force of the existing steering gear. Summary of the invention

[0005] The utility model aims to provide a locking force assembly for an automobile steering column which has a compact structure and an ingenious design and can solve the problem that the locking force of the existing steering gear is relatively low.

[0006] The technical solution of the utility model is:

[0007] A locking force assembly for an automobile steering column comprises a handle, a connecting rod, a locking block A, a locking block B, a fixed friction plate, a bracket, an end bearing, a movable friction plate, an upper column and an adjusting nut; an upper column is arranged on the inner side of the bracket, and a connecting rod is inserted into the upper column; one end of the connecting rod passes through the bracket and is provided with a handle; a locking block A is provided on the inner side of the handle; a locking block B is provided on the bracket on one side of the locking block A; the locking block A is in abutting connection with the locking block B; the characteristic is that: the other end of the connecting rod passes through the bracket and is provided with an adjusting nut; a fixed friction plate is provided on the bracket on the inner side of the adjusting nut; a plurality of movable friction plates are mounted inside the fixed friction plate; an end bearing is sleeved on the connecting rod on the inner side of the adjusting nut.

[0008] The bracket comprises a support plate and an elastic pressure plate; the lower end of the support plate is symmetrically provided with an elastic pressure plate; a long sliding hole is arranged on the elastic pressure plate; and the connecting rod is slidably connected with the long sliding hole.

[0009] The fixed friction plate is in a rectangular structure; a through sliding hole is arranged inside the fixed friction plate; a plurality of clamping seams are arranged at the lower end of the fixed friction plate; and a movable friction plate is clamped inside the clamping seams.

[0010] The movable friction plate is in a circular ring structure.

[0011] The rear end of the locking block B is provided with a clamping boss; the clamping boss is clamped and connected with the long sliding hole of the corresponding elastic pressure plate.

[0012] The advantages of the utility model are:

[0013] The locking force component of the automobile steering column has a compact structure and an ingenious design. On the basis of the existing design, a structural design of a fixed friction plate and a plurality of movable friction plates is added. After adopting this design, when locking, the friction between the plurality of movable friction plates and the fixed friction plate is relied upon to achieve locking, which greatly improves the angle holding force compared to the existing locking method that relies on the friction between a single washer and a bracket to achieve locking, solves the problem of relatively low locking force of the existing steering gear, and meets the use requirements of the automobile steering column. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0016] Figure 3 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0017] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0018] Figure 5 This is a schematic diagram of the structure of the fixed friction plate of the utility model;

[0019] Figure 6 for Figure 2 Schematic diagram of the enlarged structure at C in the middle;

[0020] Figure 7 It is a structural schematic diagram of the bracket of the utility model.

[0021] In the figure: 1. bracket; 2. upper pipe column; 3. connecting rod; 4. handle; 5. locking block A; 6. locking block B; 7. adjusting nut; 8. fixed friction plate; 9. movable friction plate; 10. end bearing; 11. support plate; 12. elastic pressure plate; 13. long sliding hole; 14. through sliding hole; 15. clamping seam; 16. clamping boss. DETAILED DESCRIPTION

[0022] The locking force assembly of the automobile steering column includes a handle 4, a connecting rod 3, a locking block A5, a locking block B6, a fixed friction plate 8, a bracket 1, an end bearing 10, a movable friction plate 9, an upper column 2 and an adjusting nut 7 (see the attached manual). Figure 1 ).

[0023] The bracket 1 includes a support plate 11 and an elastic pressure plate 12; the lower end of the support plate 11 is symmetrically provided with an elastic pressure plate 12; the elastic pressure plate 12 is provided with a long sliding hole 13 (see the attached manual Figure 7 ).

[0024] An upper pipe column 2 is arranged inside the bracket 1, and a connecting rod 3 is inserted into the upper pipe column 2 (see the appendix of the manual). Figure 1 , 2 and 3); the connecting rod 3 is slidably connected to the long sliding hole 13 on the elastic pressure plate 12.

[0025] One end of the connecting rod 3 passes through the bracket 1 and is provided with a handle 4; during operation, the connecting rod 3 can be driven to rotate synchronously by the handle 4.

[0026] A locking block A5 is mounted on the inner side of the handle 4; a locking block B6 is mounted on the bracket 1 on one side of the locking block A5; the locking block A5 is in contact with the locking block B6 (see the attached manual). Figure 2 and 6 The rear end of the locking block B6 is provided with a snap-fitting boss 16; the snap-fitting boss 16 is snap-fitted with the long sliding hole 13 of the corresponding elastic pressure plate 12 (see the attached manual Figure 2 and 6 ).

[0027] The structure of the locking block A5 and the locking block B6 is consistent with the existing structure. When working, the locking block B6 can only slide up and down along the long sliding hole 13 with the cooperation of the clamping boss 16, and cannot rotate. When the handle 4 drives the locking block A5 to rotate relative to the locking block B6, the claw of the locking block A5 will slide along the inclined surface set on the locking block B6, so as to achieve the purpose of pulling the connecting rod 3 to move.

[0028] The other end of the connecting rod 3 passes through the bracket 1 and is equipped with an adjusting nut 7. A fixed friction plate 8 is installed on the bracket 1 inside the adjusting nut 7 (see the appendix of the manual). Figure 3 The fixed friction plate 8 is rectangular in structure; a through-sliding hole 14 is arranged inside the fixed friction plate 8; a plurality of clamping seams 15 are arranged at the lower end of the fixed friction plate 8; a circular ring-shaped movable friction plate 9 is clamped inside the clamping seams 15. The end bearing 10 is mounted on the connecting rod 3 inside the adjusting nut 7 (see the appendix of the manual). Figure 3 and 4 ).

[0029] When the locking force assembly of the automobile steering column is in the locked state, the handle 4 drives the locking block A5 to rotate relative to the locking block B6, so that the claw of the locking block A5 contacts the high point of the inclined surface set on the locking block B6. At this time, one end of the connecting rod 3 presses the elastic pressure plate 12 in contact with it through the locking block B6, and the other end of the connecting rod 3 presses the elastic pressure plate 12 in contact with it through the fixed friction plate 8 and the movable friction plate 9, so that the two sets of elastic pressure plates 12 are close to each other to achieve the purpose of locking the upper column 2.

[0030] In the locked state, under the action of the pulling force of the connecting rod 3, multiple movable friction plates 9 maintain a contact connection with the fixed friction plate 8. At this time, if the upper column 2 is to move with the bracket 1, the connecting rod 3 must drive the movable friction plate 9 to slide with the fixed friction plate 8. In this way, the static friction force between the multiple movable friction plates 9 and the fixed friction plate 8 is the angle holding force of the steering column of the car.

[0031] When the locking force assembly of the steering column of the automobile is in the released state, the handle 4 drives the locking block A5 to rotate relative to the locking block B6, so that the claw of the locking block A5 contacts the low point of the inclined surface set on the locking block B6. At this time, the locking block B6 will move closer to the locking block A5 under the elastic force of the elastic pressure plate 12, so that the locking force assembly can be restored to the released state.

[0032] The locking force component of the automobile steering column has a compact structure and ingenious design. On the basis of the existing design, a fixed friction plate 8 and a plurality of movable friction plates 9 are added to the structural design. After adopting this design, the locking is achieved by relying on the friction between the plurality of movable friction plates 9 and the fixed friction plate 8, which greatly improves the angle holding force compared to the existing locking method that relies on the friction between a single washer and the bracket 1, solves the problem of relatively low locking force of the existing steering gear, and meets the use requirements of the automobile steering column.

Claims

1. A locking force assembly for a steering column of an automobile, comprising a handle (4), a connecting rod (3), a locking block A (5), a locking block B (6), a fixed friction plate (8), a bracket (1), an end bearing (10), a movable friction plate (9), an upper column (2) and an adjusting nut (7); an upper column (2) is arranged inside the bracket (1), and a connecting rod (3) is inserted into the upper column (2); one end of the connecting rod (3) passes through the bracket (1) and is then provided with a handle (4); a locking block A (5) is provided inside the handle (4); a locking block B (6) is provided on the bracket (1) on one side of the locking block A (5); the locking block A (5) is in abutting connection with the locking block B (6); the characteristics are as follows: The other end of the connecting rod (3) passes through the bracket (1) and is equipped with an adjusting nut (7); a fixed friction plate (8) is installed on the bracket (1) inside the adjusting nut (7); a plurality of movable friction plates (9) are mounted inside the fixed friction plate (8); and an end face bearing (10) is sleeved on the connecting rod (3) inside the adjusting nut (7).

2. The locking force assembly of a vehicle steering column according to claim 1, characterized in that: The bracket (1) comprises a support plate (11) and an elastic pressure plate (12); the elastic pressure plate (12) is symmetrically mounted on the lower end of the support plate (11); a long sliding hole (13) is provided on the elastic pressure plate (12); and the connecting rod (3) is slidably connected to the long sliding hole (13).

3. The locking force assembly of a vehicle steering column according to claim 1, characterized in that: The fixed friction plate (8) has a rectangular structure; a through sliding hole (14) is provided inside the fixed friction plate (8); a plurality of clamping seams (15) are provided at the lower end of the fixed friction plate (8); and a movable friction plate (9) is clamped inside the clamping seams (15).

4. The locking force assembly of a vehicle steering column according to claim 3, characterized in that: The movable friction plate (9) is of a circular ring structure.

5. The locking force assembly of a vehicle steering column according to claim 2, characterized in that: A clamping boss (16) is provided at the rear end of the locking block B (6); the clamping boss (16) is clamped and connected to the long sliding hole (13) of the corresponding elastic pressure plate (12).

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