Steering column locking device

By designing a steering column locking device including a linkage mechanism, the problem of loosening caused by a single power point driving the clamping block to rotate is solved, and stable locking of the column is achieved.

CN222769463UActive Publication Date: 2025-04-18MIANYANG ZHENGXIN MASCH TECH CO LTD
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Patent Information

Application Number
CN202421738182.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-22
Publication Date
2025-04-18
Estimated Expiration
2034-07-22

AI Technical Summary

Technical Problem

The existing steering column locking device drives the clamping block to rotate through a single power point, resulting in the clamping block being easily loosened when clamping the tube column and being unable to effectively lock the tube column.

Method used

A locking device including a base, a fixing frame, a clamping block and a linkage mechanism is designed. The linkage mechanism provides balanced rotational power through components such as electric telescopic rods, first and second connecting rods, moving rods and rotating rods, ensuring the stability of the clamping block when locking the pipe string.

Benefits of technology

The symmetrically distributed first and second connecting seats provide balanced rotation power, improve the stability of the clamping block when rotating, ensure the stability of the tube column when locking, and avoid loosening problems.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a steering column locking device, and relates to the technical field of automobile steering columns. The clamping device comprises a base, a fixing frame and a clamping block. The clamping device comprises a clamping block, a linkage mechanism, an electric telescopic rod, a first connecting block and a first connecting seat, the first connecting seat is fixedly connected with the outer wall of the clamping block through a bolt, the outer wall of the clamping block is connected with a second connecting seat through a bolt, and the second connecting seat and the first connecting seat are distributed at an angle of 180 degrees. According to the utility model, the linkage mechanism is arranged; the output end of an electric telescopic rod moves upwards, a first connecting base and a second connecting base can be driven to rotate in the same direction through mechanical transmission, then a clamping block is driven to rotate, the clamping block rotates and locks a tubular column, and balanced rotating force is provided for the outer wall of the clamping block through the first connecting base and the second connecting base which are symmetrically distributed; and compared with a single rotating point, the stability of the clamping block during rotation is improved, and then the stability of the pipe column during locking is guaranteed.
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Description

Technical Field

[0001] The utility model relates to the technical field of automobile steering columns, in particular to a steering column locking device. Background Art

[0002] With the rapid development of automobile technology, current users pursue vehicle safety and comfort, and have higher requirements for the exquisite perception of vehicles. The important components of the current vehicle steering system include steering column parts. The steering column is one of the most basic components of the automobile steering system. The main function of the steering column is to transmit the torque applied to the steering wheel by the driver, drive the steering gear to work, and control the direction of the car. The current steering column needs to be used with a locking device, and the locking device is an important part to realize the adjustment of the steering wheel and ensure that the steering column does not loosen during driving.

[0003] According to announcement number CN218949285U, a locking device for a steering column is provided, comprising: an outer plate, a fixing rod is installed on the outer plate, a fixing shell is arranged on the fixing rod, a supporting block is installed in the fixing shell, a limiting rod is connected to the supporting block, a clamping block is arranged at one end of the limiting rod, a chassis is arranged on the inner bottom side of the clamping block, a transmission handle is installed on the chassis, a telescopic rod is fixed on the outer plate, a telescopic member is installed at one end of the telescopic rod, a plurality of clamping blocks are provided, and they are all arranged in a ring on the inner side of the fixing shell, a first sliding rod and a second sliding block are fixed on the top and bottom surfaces of the plurality of clamping blocks respectively, and the clamping block is a friction clamping block. The utility model reduces the manufacturing cost of the locking device and reduces the operating difficulty of the device, does not need to control multiple components at the same time, improves the ability of the locking device to adjust the clamping according to the size of the column, and also improves the fixed point position with the column during locking, thereby making the fixation more stable.

[0004] This patent realizes the adjustment and locking of pipes of different diameters. At the same time, this patent can provide multiple fixed points on the outer wall of the pipe column through the setting of the clamping block, so that the locking of the pipe column is more stable. However, this patent only rotates the clamping block through a single connecting block, and the clamping block rotates to lock the outer wall of the pipe column. The outer wall of the clamping block is only affected by a single power point, which causes the pipe column to be subjected to a reaction force and transmitted to the connecting block through mechanical transmission when the pipe column is locked. The setting of the single connecting block causes the state of the clamping block after rotation to be unable to remain stable, which in turn causes the pipe column to be unable to be locked. For this purpose, a steering column locking device is provided. Utility Model Content

[0005] The utility model aims to provide a steering column locking device to solve the problem proposed in the above background technology that a clamping block is driven to rotate by a single power point, which causes the clamping block to loosen when clamping the column, thereby failing to effectively lock the column.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steering column locking device, comprising a base, a fixing frame is fixed to the top of the base by bolts, a clamping block is connected to the inner wall of the fixing frame by a bearing, the steering column is sleeved on the inner wall of the clamping block, the clamping block is used to lock the steering column, the fixing frame is used to support the clamping block and ensure the stability of the clamping block when rotating; a linkage mechanism, the linkage mechanism is arranged at one end of the fixing frame, and the linkage mechanism extends to one side of the fixing frame, the linkage mechanism is used to provide a balanced rotational force to the clamping block, thereby facilitating the stability of the clamping block when locking the column, the linkage mechanism comprises an electric telescopic rod fixed to the top of the base by bolts, the output end of the electric telescopic rod is fixed to a first connecting block by bolts, one end of the first connecting block is rotatably connected to a first connecting seat, the first connecting seat is fixedly connected to the outer wall of the clamping block by bolts, the outer wall of the clamping block is connected to a second connecting seat by bolts, and the second connecting seat is distributed 180 degrees with the first connecting seat.

[0007] Preferably, a moving rod is fixed to one side of the first connecting block by bolts, a rotating rod is sleeved on the inner wall of the moving rod, and a threaded rod is welded to the bottom end of the rotating rod.

[0008] Preferably, the top end of the rotating rod is connected to an L-shaped rod via a bearing, the bottom end of the L-shaped rod is fixedly connected to the top end of the base via bolts, the outer wall of the rotating rod is connected to a support plate via a bearing, one end of the support plate is connected to the L-shaped rod via bolts, the bottom end of the threaded rod is rotatably connected to the inner wall of the base via a bearing, and the outer wall of the threaded rod is connected to a cross bar via threads.

[0009] Preferably, a spiral groove is formed on the outer wall of the rotating rod, and a ball is disposed on the inner wall of the moving rod, and the ball is sleeved in the spiral groove.

[0010] Preferably, a connecting rod is fixed to one side of the cross bar by bolts, a second connecting block is fixed to one side of the connecting rod by bolts, and one end of the second connecting block is rotatably connected to the second connecting seat.

[0011] Preferably, a protrusion is fixed by bolts on one side of the cross bar away from the connecting rod, a fixing block is sleeved on the outer wall of the protrusion, and the bottom end of the fixing block is fixedly connected to the top end of the base by bolts.

[0012] Preferably, a moving groove is provided on one side of the fixing block, and the moving groove matches the moving track of the protrusion.

[0013] Preferably, the inner wall of the protrusion is sleeved with a limiting rod, the top and bottom ends of the limiting rod are fixedly connected to the inner wall of the fixing block by bolts, the bottom end of the protrusion is fixedly connected with a spring, the bottom end of the spring is fixedly connected to the inner wall of the fixing block, and the spring is sleeved on the outer wall of the limiting rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By setting a linkage mechanism and moving the output end of the electric telescopic rod upward, the first connecting seat and the second connecting seat can be driven to rotate in the same direction through mechanical transmission, thereby driving the clamping block to rotate. The clamping block rotates and locks the pipe column. Through the symmetrically distributed first connecting seat and the second connecting seat, a balanced rotational force is provided to the outer wall of the clamping block. Compared with a single rotation point, the stability of the clamping block during rotation is improved, thereby ensuring the stability of the pipe column when locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a structural schematic diagram of another viewing angle of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the fixed block of the utility model;

[0019] Figure 4 For the utility model Figure 3 A is an enlarged structural diagram;

[0020] Figure 5 This is a schematic diagram of the internal structure of the mobile rod of the utility model;

[0021] Figure 6 For the utility model Figure 5 The enlarged structural diagram at B in FIG.

[0022] In the figure: 1, base; 2, fixing frame; 3, clamping block; 301, first connecting seat; 302, second connecting seat; 4, linkage mechanism; 401, electric telescopic rod; 402, first connecting block; 403, moving rod; 4031, ball; 404, rotating rod; 4041, L-shaped rod; 4042, supporting plate; 4043, spiral groove; 405, threaded rod; 406, cross bar; 4061, protrusion; 4062, fixing block; 4063, limiting rod; 4064, spring; 407, connecting rod; 408, second connecting block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The following is combined with Figure 1-Figure 6 The utility model is described in further detail.

[0025] See also Figure 1-Figure 6 The utility model provides a steering column locking device embodiment: a steering column locking device, comprising a base 1, a fixing frame 2 is fixed to the top of the base 1 by bolts, a clamping block 3 is connected to the inner wall of the fixing frame 2 by a bearing, the steering column is sleeved on the inner wall of the clamping block 3, the clamping block 3 is used to lock the steering column, the fixing frame 2 is used to support the clamping block 3 and ensure the stability of the clamping block 3 when rotating; a linkage mechanism 4, the linkage mechanism 4 is arranged at one end of the fixing frame 2, and the linkage mechanism 4 extends to one side of the fixing frame 2, the linkage mechanism 4 is used to provide a balanced rotational force to the clamping block 3, thereby facilitating the stability of the clamping block 3 when locking the column, the linkage mechanism 4 includes an electric telescopic rod 401 fixed to the top of the base 1 by bolts The output end of the electric telescopic rod 401 is fixed with a first connecting block 402 by bolts, and one end of the first connecting block 402 is rotatably connected with a first connecting seat 301, and the first connecting seat 301 is fixedly connected to the outer wall of the clamping block 3 by bolts, and the outer wall of the clamping block 3 is connected with a second connecting seat 302 by bolts, and the second connecting seat 302 is distributed 180 degrees with the first connecting seat 301. The upward movement of the output end of the electric telescopic rod 401 can drive the first connecting seat 301 and the second connecting seat 302 to rotate in the same direction through mechanical transmission, and the rotation of the first connecting seat 301 and the second connecting seat 302 can drive the rotating clamping block 3 to rotate, thereby locking the pipe column sleeved on the inner wall of the clamping block 3, and at the same time, it is also convenient to ensure the stability of the clamping block 3 when it rotates;

[0026] A moving rod 403 is fixed to one side of the first connecting block 402 by bolts, a rotating rod 404 is sleeved on the inner wall of the moving rod 403, a threaded rod 405 is welded to the bottom end of the rotating rod 404, the first connecting block 402 moves upward to drive the moving rod 403 to move, the moving rod 403 moves upward to drive the rotating rod 404 to rotate, and then drives the threaded rod 405 to rotate in the same direction; the top end of the rotating rod 404 is connected to an L-shaped rod 4041 through a bearing, and the bottom end of the L-shaped rod 4041 is bolted The top of the base 1 is fixedly connected, the outer wall of the rotating rod 404 is connected with a support plate 4042 through a bearing, one end of the support plate 4042 is connected with an L-shaped rod 4041 through a bolt, the bottom end of the threaded rod 405 is rotatably connected with the inner wall of the base 1 through a bearing, the outer wall of the threaded rod 405 is connected with a cross bar 406 through a thread, the L-shaped rod 4041 is used to ensure the stability of the rotating rod 404 during the transmission of the rotating force, and the support plate 4042 is used to support the rotating rod 404 and the threaded rod 405;

[0027] The outer wall of the rotating rod 404 is provided with a spiral groove 4043, and the inner wall of the moving rod 403 is provided with a ball 4031, and the ball 4031 is sleeved with the spiral groove 4043. The moving rod 403 moves upward to drive the ball 4031 to move, and the ball 4031 moves upward and squeezes the spiral groove 4043, thereby driving the spiral groove 4043 to rotate, and the rotation of the spiral groove 4043 can drive the rotating rod 404 to rotate, so as to facilitate the rotation of the rotating rod 404 to drive the threaded rod 405 to rotate; a connecting rod 407 is fixed to one side of the cross rod 406 by bolts, and a second connecting block 408 is fixed to one side of the connecting rod 407 by bolts, and one end of the second connecting block 408 is rotatably connected to the second connecting seat 302, and the cross rod 406 moves downward to drive the connecting rod 407 to move, and the connecting rod 407 moves downward to drive the second connecting block 408 to move, and the second connecting block 408 moves to drive the second connecting seat 302 to rotate, thereby driving the clamping block 3 to rotate, thereby locking the pipe column;

[0028] A protrusion 4061 is fixed by bolts on one side of the cross bar 406 away from the connecting rod 407, and a fixing block 4062 is sleeved on the outer wall of the protrusion 4061. The bottom end of the fixing block 4062 is fixedly connected to the top of the base 1 by bolts. The downward movement of the cross bar 406 can drive the protrusion 4061 to move, and the protrusion 4061 moves on the inner wall of the fixing block 4062. The protrusion 4061 and the fixing block 4062 are used to limit the cross bar 406 to prevent the cross bar 406 from rotating when it moves vertically; a moving groove is provided on one side of the fixing block 4062, and the moving groove matches the moving track of the protrusion 4061. When the protrusion 4061 moves downward, the protrusion 4061 and the fixing block 4062 cannot be stopped under the limitation of the moving groove. Disengagement, thereby ensuring the stability of the vertical movement of the protrusion 4061; the inner wall of the protrusion 4061 is sleeved with a limiting rod 4063, the top and bottom ends of the limiting rod 4063 are fixedly connected to the inner wall of the fixing block 4062 by bolts, the bottom end of the protrusion 4061 is fixedly connected with a spring 4064, the bottom end of the spring 4064 is fixedly connected to the inner wall of the fixing block 4062, and the spring 4064 is sleeved on the outer wall of the limiting rod 4063. The protrusion 4061 moves downward and squeezes the spring 4064. The spring 4064 is squeezed by force. The spring 4064 is used to support the protrusion 4061 and buffer the downward movement force of the protrusion 4061. At the same time, the spring 4064 is used to provide a reset force for the protrusion 4061 to move in the vertical direction.

[0029] Working principle: when it is necessary to lock the steering column, the electric telescopic rod 401 is controlled to work, the output end of the electric telescopic rod 401 moves upward and drives the first connecting block 402 to move, the first connecting block 402 moves to drive the first connecting seat 301 to move upward, the first connecting seat 301 moves and drives the clamping block 3 to rotate, the first connecting block 402 moves upward and drives the moving rod 403 to move, the moving rod 403 moves and drives the rotating rod 404 to rotate, the rotating rod 404 rotates and drives the threaded rod 405 to rotate, the threaded rod 405 rotates and drives the cross bar 406 to move downward, the cross bar 406 moves downward and drives the connecting rod 407 to move, the connecting rod 407 moves and drives the second connecting block 408 to move downward, the second connecting block 408 moves to drive the second connecting seat 302 to move downward, and the second connecting seat 302 drives the clamping block 3 to rotate while moving downward, and the first connecting seat 301 and the second connecting seat 302 rotate in the same direction to drive the clamping block 3 to shrink more stably.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A steering column locking device, characterized in that: include: A base (1), the top of the base (1) being fixed with a fixing frame (2) by means of bolts, and the inner wall of the fixing frame (2) being connected with a clamping block (3) by means of a bearing; A linkage mechanism (4), the linkage mechanism (4) being arranged at one end of the fixing frame (2), and the linkage mechanism (4) extending to one side of the fixing frame (2), the linkage mechanism (4) comprising an electric telescopic rod (401) fixed to the top of the base (1) by means of bolts, the output end of the electric telescopic rod (401) being fixed with a first connecting block (402) by means of bolts, one end of the first connecting block (402) being rotatably connected with a first connecting seat (301), the first connecting seat (301) being fixedly connected to the outer wall of the clamping block (3) by means of bolts, the outer wall of the clamping block (3) being connected with a second connecting seat (302) by means of bolts, the second connecting seat (302) being distributed 180 degrees with the first connecting seat (301).

2. A steering column locking device according to claim 1, characterized in that: A moving rod (403) is fixed to one side of the first connecting block (402) by means of bolts, a rotating rod (404) is sleeved on the inner wall of the moving rod (403), and a threaded rod (405) is welded to the bottom end of the rotating rod (404).

3. A steering column locking device according to claim 2, characterized in that: The top end of the rotating rod (404) is connected to an L-shaped rod (4041) via a bearing, the bottom end of the L-shaped rod (4041) is fixedly connected to the top end of the base (1) via a bolt, the outer wall of the rotating rod (404) is connected to a support plate (4042) via a bearing, one end of the support plate (4042) is connected to the L-shaped rod (4041) via a bolt, the bottom end of the threaded rod (405) is rotatably connected to the inner wall of the base (1) via a bearing, and the outer wall of the threaded rod (405) is connected to a cross bar (406) via a thread.

4. A steering column locking device according to claim 3, characterized in that: The outer wall of the rotating rod (404) is provided with a spiral groove (4043), and the inner wall of the moving rod (403) is provided with a ball (4031), and the ball (4031) is sleeved with the spiral groove (4043).

5. A steering column locking device according to claim 3, characterized in that: A connecting rod (407) is fixed to one side of the cross bar (406) by bolts, and a second connecting block (408) is fixed to one side of the connecting rod (407) by bolts, and one end of the second connecting block (408) is rotatably connected to the second connecting seat (302).

6. A steering column locking device according to claim 5, characterized in that: A protrusion (4061) is fixed by bolts on the side of the cross bar (406) away from the connecting rod (407); a fixing block (4062) is sleeved on the outer wall of the protrusion (4061); and the bottom end of the fixing block (4062) is fixedly connected to the top end of the base (1) by bolts.

7. A steering column locking device according to claim 6, characterized in that: A moving groove is provided on one side of the fixing block (4062), and the moving groove matches the moving track of the protruding block (4061).

8. A steering column locking device according to claim 7, characterized in that: The inner wall of the protrusion (4061) is sleeved with a limiting rod (4063); the top and bottom ends of the limiting rod (4063) are fixedly connected to the inner wall of the fixing block (4062) by bolts; the bottom end of the protrusion (4061) is fixedly connected with a spring (4064); the bottom end of the spring (4064) is fixedly connected to the inner wall of the fixing block (4062); and the spring (4064) is sleeved on the outer wall of the limiting rod (4063).