Steering column turn number limiting device

Abstract

The utility model discloses a steering column turn number limiting device, which relates to the technical field of automobile driving and comprises a main body assembly, the main body assembly comprises a column outer sleeve, an inner shaft is arranged in the column outer sleeve, and a limiter is rotatably connected to the inner shaft; and the blocking assembly is arranged in the main body assembly and comprises a check ring, convex blocks are symmetrically fixed to the two sides of the check ring, connecting blocks are fixedly connected to the ends of the two sides of the check ring, connecting grooves are formed in the connecting blocks, and the connecting grooves penetrate through one sides of the connecting blocks. According to the steering-by-wire system, the main body assembly and the blocking assembly are matched with each other, so that the steering wheel turn number limiting function is added to the steering-by-wire system, the maximum rotation turn number of the steering wheel is limited, meanwhile, the maximum rotation turn number of the direction can be manually adjusted according to the requirements of a driver, the driving flexibility is improved, and the driving experience of the driver is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile driving, especially a steering column circle number limiting device. BACKGROUND

[0002] The automobile steering system is mainly divided into non-linear control steering system and linear control steering system, for the non-linear control steering system, all the components in the system are mechanically connected from the input end (steering wheel) to the output end (steering machine), therefore, the function of steering wheel circle number limiting is actually realized through the limiting between the end of steering machine rack and steering machine shell, but for the linear control steering system, because the intermediate shaft in the middle of the steering system is removed, therefore the whole system is not connected by mechanical components. If the steering wheel is not limited and rotates freely, it will damage the precision electrical components such as clock spring and torque angle sensor, cause system failure and affect driving safety. Therefore, the linear control steering system must increase the function of steering wheel circle number limiting, but the current steering wheel circle number limiting is often set to a fixed number, and people may encounter various situations in life, so the steering wheel rotation circle number cannot meet the needs of people and affect the driving experience of the driver. SUMMARY

[0003] In view of the problems existing in the above-mentioned steering column circle number limiting device, the utility model is provided.

[0004] Therefore, the problem to be solved by the utility model is how to set the steering column circle number limiting device capable of adjusting the steering wheel rotation circle number.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a steering column circle number limiting device, which comprises a main body assembly, the main body assembly comprises a column sleeve pipe, an inner shaft is arranged in the column sleeve pipe, a limiter is rotationally connected to the inner shaft, and the limiter comprises a limiting block, a limiting block is arranged on the inner shaft, the limiting block is provided with a limiting groove, and the limiting groove is arranged on the limiting block.

[0006] A blocking assembly is arranged in the main body assembly and comprises a blocking ring, convex blocks are symmetrically fixed on both sides of the blocking ring, connecting blocks are fixedly connected to the both side ends of the blocking ring, a connecting groove is formed in the connecting block, and the connecting groove penetrates through one side of the connecting block.

[0007] As a preferred scheme of the steering column circle number limiting device, one end of the connecting groove is fixedly connected with a sawtooth rack, a first meshing tooth is arranged on one side of the sawtooth rack, and the sawtooth rack is slidably arranged in the connecting groove at the other end.

[0008] As a preferred scheme of the steering column number limiting device, the first spring is fixedly connected to the inner wall of the connecting groove, one end of the first spring is fixedly connected with a tooth plate, the tooth plate is fixedly connected with a sliding block on one side, the tooth plate is provided with second meshing teeth on one side and cooperates with the first meshing teeth.

[0009] As a preferred scheme of the steering column number limiting device, the first spring is fixedly connected to the inner wall of the connecting groove, one end of the first spring is fixedly connected with a tooth plate, the tooth plate is fixedly connected with a sliding block on one side, the tooth plate is provided with second meshing teeth on one side and cooperates with the first meshing teeth.

[0010] As a preferred scheme of the steering column number limiting device, the first spring is fixedly connected to the inner wall of the connecting groove, one end of the first spring is fixedly connected with a tooth plate, the tooth plate is fixedly connected with a sliding block on one side, the tooth plate is provided with second meshing teeth on one side and cooperates with the first meshing teeth.

[0011] As a preferred scheme of the steering column number limiting device, the first spring is fixedly connected to the inner wall of the connecting groove, one end of the first spring is fixedly connected with a tooth plate, the tooth plate is fixedly connected with a sliding block on one side, the tooth plate is provided with second meshing teeth on one side and cooperates with the first meshing teeth.

[0012] As a preferred scheme of the steering column number limiting device, the first spring is fixedly connected to the inner wall of the connecting groove, one end of the first spring is fixedly connected with a tooth plate, the tooth plate is fixedly connected with a sliding block on one side, the tooth plate is provided with second meshing teeth on one side and cooperates with the first meshing teeth.

[0013] As a preferred scheme of the steering column number limiting device, the first spring is fixedly connected to the inner wall of the connecting groove, one end of the first spring is fixedly connected with a tooth plate, the tooth plate is fixedly connected with a sliding block on one side, the tooth plate is provided with second meshing teeth on one side and cooperates with the first meshing teeth.

[0014] As a preferred scheme of the steering column number limiting device, the first spring is fixedly connected to the inner wall of the connecting groove, one end of the first spring is fixedly connected with a tooth plate, the tooth plate is fixedly connected with a sliding block on one side, the tooth plate is provided with second meshing teeth on one side and cooperates with the first meshing teeth.

[0015] As a preferred scheme of the steering column number limiting device, the first spring is fixedly connected to the inner wall of the connecting groove, one end of the first spring is fixedly connected with a tooth plate, the tooth plate is fixedly connected with a sliding block on one side, the tooth plate is provided with second meshing teeth on one side and cooperates with the first meshing teeth.

[0016] The utility model has the advantages that the main body assembly and the blocking assembly are matched, the number of steering wheel turns is limited for the steer-by-wire system, the maximum number of steering wheel turns is limited, the maximum number of steering wheel turns can be manually adjusted according to the demand of the driver, the flexibility of driving is improved, and the driving experience of the driver is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0018] Figure 1 It is the structure diagram of steering column number limiting device.

[0019] Figure 2 It is the main component partial structure diagram of steering column number limiting device.

[0020] Figure 3 It is the pipe sleeve structure diagram of steering column number limiting device.

[0021] Figure 4 It is the inner shaft connecting structure diagram of steering column number limiting device.

[0022] Figure 5 It is the blocking component structure diagram of steering column number limiting device.

[0023] Figure 6 It is the blocking component connecting diagram of steering column number limiting device.

[0024] Figure 7 It is the Figure 6 It is the enlarged view of A in the middle.

[0025] Figure 8 It is the structure diagram of first meshing tooth and second meshing tooth of steering column number limiting device.

[0026] Figure 9 It is the sectional view of sliding block of steering column number limiting device.

[0027] Figure 10 It is the structure diagram of limiter of steering column number limiting device.

[0028] Figure 11 It is the internal sectional view of limiter of steering column number limiting device.

[0029] Figure 12 It is the connecting block partial view of steering column number limiting device.

[0030] In the drawing: 100, main component;101, pipe sleeve;101-1, limit groove;101-2, blocking ring groove;102, inner shaft;103, limiter;103-1, circular groove;104, compression spring;105, buffer block;

[0031] 106, circular plate; 107, moving block; 108, threaded ring; 200, blocking assembly; 201, blocking ring; 202, rubber ring; 203, connecting block; 203-1, connecting groove; 203-2, limiting groove; 204, sawtooth rack; 205, first meshing tooth; 206, first spring; 207, toothed plate block; 208, sliding block; 208-1, spring groove; 209, second meshing tooth; 210, second spring; 211, push plate; 212, push rod; 213, limiting plate. DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0033] In the following description, a lot of specific details are set forth in order to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0034] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0035] Embodiment 1

[0036] Reference Figures 1-7 For the first embodiment of the present application, the embodiment provides a steering column circle number limiting device, the steering column circle number limiting device comprises a main body assembly 100 and a blocking assembly 200, through the mutual cooperation of the main body assembly 100 and the blocking assembly 200, the adjustment of the maximum rotation circle number of the steering wheel is realized, so as to meet the different needs of people.

[0037] The main body assembly 100 comprises a column outer sleeve 101, the column outer sleeve 101 is internally provided with an inner shaft 102, the inner shaft 102 is rotationally arranged in the column outer sleeve 101, a limiter 103 is rotationally connected on the inner shaft 102, and the limiter 103 is sleeved on the inner shaft 102; and,

[0038] The blocking assembly 200 is arranged in the interior of the main body assembly 100, and comprises a blocking ring 201 made of elastic material and having a certain elasticity and used for blocking the movement of the stopper 103.

[0039] Embodiment 2

[0040] With reference to Figures 2-12 As a second embodiment of the utility model, the embodiment is based on the previous embodiment.

[0041] Specifically, the connecting slot 203-1 at one end is fixedly connected with a sawtooth strip 204, the height of the sawtooth strip 204 is lower than the height of the connecting slot 203-1, the sawtooth strip 204 is provided with a first meshing tooth 205 at one side, and the sawtooth strip 204 is slidably arranged in the connecting slot 203-1 at the other end by arranging the sawtooth strip 204 in a manner that one end is fixed and the other end is movably connected, so as to realize that the sawtooth strip 204 can move a certain distance in the connecting slot 203-1 by extruding the blocking ring 201, and the sawtooth strip 204 can be fixed and limited by limiting and fixing the movably connected end of the sawtooth strip 204, so as to limit and fix the blocking ring 201.

[0042] Specifically, the connecting slot 203-1 is fixedly connected with a first spring 206, the first spring 206 is arranged in the connecting slot 203-1 at one end only, one end of the first spring 206 is fixedly connected with a toothed plate block 207, the first spring 206 provides elastic force to the toothed plate block 207, so that the toothed plate block 207 can be movably arranged under the limitation of the connecting slot 203-1 in a default state, one side of the toothed plate block 207 is fixedly connected with a sliding block 208, the sliding block 208 protrudes from the surface of the connecting block 203, one side of the toothed plate block 207 is provided with a second meshing tooth 209, and the second meshing tooth 209 cooperates with the first meshing tooth 205, the toothed plate block 207 is driven by pressing the sliding block 208, so that the first meshing tooth 205 is engaged with the second meshing tooth 209, thereby limiting the movement of the sawtooth strip 204.

[0043] The spring groove 208-1 is arranged in the sliding block 208, the second spring 210 is fixedly connected to the inner wall of the sliding block 208, the one end of the second spring 210 is fixedly connected with the push plate 211, the push plate 211 is in the end position of the spring groove 208-1 under the action of the elasticity of the second spring 210, the inside of the sliding block 208 is provided with the rotating rod 212, the rotating rod 212 is in a cylindrical shape, and the height of the rotating rod 212 is higher than the height of the spring groove 208-1, the push plate 211 is provided with a certain arc, and the push plate 211 is matched with the rotating rod 212, the one side of the rotating rod 212 is fixedly connected with the limiting plate 213, under the action of the elasticity of the second spring 210, the push plate 211 moves to drive the rotating rod 212 to move, and the rotating rod 212 moves to drive the limiting plate 213 to move.

[0044] The limiting groove 203-2 is arranged in the connecting block 203, the size of the limiting groove 203-2 is matched with the size of the limiting plate 213, the limiting groove 203-2 is arranged at one side of the connecting groove 203-1 and matched with the limiting plate 213, when the sliding block 208 is pressed to move the limiting plate 213 to the limiting groove 203-2, under the action of the elasticity of the second spring 210, the limiting plate 213 is clamped through the limiting groove 203-2, so that the position of the sliding block 208 is limited.

[0045] The limiting groove 101-1 is arranged in the pipe column sleeve 101, the width of the limiting groove 101-1 is matched with the width of the convex block 202 and the moving block 107, so that the limiting stopper 103 moves under the limitation of the limiting groove 101-1, the retaining ring groove 101-2 is arranged in the limiting groove 101-1 and matched with the convex block 202, the convex block 202 is moved to the retaining ring groove 101-2 by moving the retaining ring 201, and under the action of the elasticity of the retaining ring 201, the convex block 202 is moved to the inside of the retaining ring groove 101-2, so that the retaining ring 201 is limited and fixed.

[0046] The circular groove 103-1 is arranged in the limiting stopper 103, the circular groove 103-1 is symmetrically arranged in the limiting stopper 103, and the diameter of the opening of the circular groove 103-1 is smaller than the diameter of the inside, the third spring 104 is fixedly connected to the bottom of the circular groove 103-1, the one end of the third spring 104 is fixedly connected with the circular plate 105, the third spring 104 provides the elastic force to the circular plate 105, under the action of the elastic force, the circular plate 105 is in the opening position of the circular groove 103-1 in the default, the one side of the circular plate 105 is fixedly connected with the buffer block 106, when the inner shaft 102 is rotated to move the limiting stopper 103 to contact the retaining ring 201, the buffer block 106 will first contact the retaining ring 201, and through the cooperation of the third spring 104 and the circular plate 105, the limiting stopper 103 is buffered and protected.

[0047] The mobile block 107 is fixedly connected on both sides of the position limiter 103 and cooperates with the limiting groove 101-1, and the mobile block 107 is arranged to make the position limiter 103 move under the limitation of the limiting groove 101-1, so that the position limiter 103 is prevented from rotating and moves more stably.

[0048] The inner shaft 102 is provided with a threaded ring 108, and the inner wall of the position limiter 103 is provided with a thread matched with the threaded ring 108, and the threaded ring 108 and the thread on the inner wall of the position limiter 103 are matched with each other, so that the effect of moving the position limiter 103 can be achieved by rotating the inner shaft 102.

[0049] The first meshing tooth 205 is arranged in a staggered manner with the second meshing tooth 209, so that when the blocking ring 201 is pressed, the rack 204 moves in the connecting groove 203-1 and is not blocked by the position of the tooth plate block 207.

[0050] In use, when the driver needs to adjust the maximum number of rotations of the steering wheel, the blocking ring 201 is pressed and shrinks under force, at which time the convex block 202 on the blocking ring 201 is removed from the blocking ring groove 101-2, thereby releasing the position limitation of the blocking ring 201, after moving the blocking ring 201 to the appropriate position, the pressing force on the blocking ring 201 is released, and under the elastic action of the blocking ring 201 itself, the convex block 202 moves to the inside of the blocking ring groove 101-2, thereby newly limiting and fixing the position of the blocking ring 201, at which time the sliding block 208 can be pressed, the sliding block 208 moves to make the first meshing tooth 205 engage with the second meshing tooth 209, at which time the first spring 206 shrinks and the diameter of the blocking ring 201 is locked, so that the convex block 202 cannot fall off from the blocking ring 201 due to vibration, and at the same time, the pressing of the sliding block 208 makes the limiting plate 213 move to the inside of the limiting groove 203-2, thereby limiting and fixing the position of the sliding block 208, when it is needed to be adjusted again, the sliding block 208 can be released by pressing the push rod 212, at which time the sliding block 208 is removed from the connecting groove 203-1 under the action of the recovery of the first spring 206, thereby releasing the position limitation of the diameter of the blocking ring 201.

[0051] In summary, the main body assembly 100 and the blocking assembly 200 cooperate with each other to add the steering wheel rotation number limiting function to the steer-by-wire system, which can limit the maximum number of rotations of the steering wheel while manually adjusting the maximum number of rotations of the steering wheel according to the needs of the driver, increase the flexibility of driving, and improve the driving experience of the driver.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A steering column turn limit device, characterized in that: include, Main assembly (100), the main assembly (100) including a tubing outer sleeve (101), an inner shaft (102) disposed inside the tubing outer sleeve (101), a limiter (103) rotatably connected to the inner shaft (102); and, The blocking component (200) is disposed inside the main component (100) and includes a retaining ring (201). Convex blocks (202) are symmetrically fixed on both sides of the retaining ring (201). Connecting blocks (203) are fixedly connected to both ends of the retaining ring (201). A connecting groove (203-1) is provided in the connecting block (203), and the connecting groove (203-1) passes through one side of the connecting block (203).

2. The steering column turn limit device as described in claim 1, characterized in that: A sawtooth strip (204) is fixedly connected to the connecting groove (203-1) at one end. A first meshing tooth (205) is provided on one side of the sawtooth strip (204). One end of the sawtooth strip (204) is slidably disposed in the connecting groove (203-1) at the other end.

3. The steering column turn limit device as described in claim 2, characterized in that: A first spring (206) is fixedly connected to the inner wall of the connecting groove (203-1). A toothed plate (207) is fixedly connected to one end of the first spring (206). A sliding block (208) is fixedly connected to one side of the toothed plate (207). A second meshing tooth (209) is provided on one side of the toothed plate (207) and cooperates with the first meshing tooth (205).

4. The steering column turn limit device as described in claim 3, characterized in that: The sliding block (208) has a spring groove (208-1) inside. A second spring (210) is fixedly connected to one side of the inner wall of the sliding block (208). A push plate (211) is fixedly connected to one end of the second spring (210). A toggle rod (212) is provided inside the sliding block (208). A limit plate (213) is fixedly connected to one side of the toggle rod (212).

5. The steering column turn limit device as described in claim 2, characterized in that: A limiting groove (203-2) is provided in the connecting block (203). The limiting groove (203-2) is located on one side of the connecting groove (203-1) and cooperates with the limiting plate (213).

6. The steering column turn limit device as described in claim 2, characterized in that: The outer sleeve of the tubing (101) has a limiting groove (101-1) inside, and a retaining ring groove (101-2) is provided inside the limiting groove (101-1), which cooperates with the convex block (202).

7. The steering column turn limit device as described in claim 6, characterized in that: The limiter (103) has a circular groove (103-1) inside. A third spring (104) is fixedly connected to the bottom of the circular groove (103-1). A circular plate (105) is fixedly connected to one end of the third spring (104). A buffer block (106) is fixedly connected to one side of the circular plate (105).

8. The steering column turn limit device as described in claim 2, characterized in that: The limiter (103) has movable blocks (107) fixedly connected to both sides and cooperates with the limiting groove (101-1).

9. The steering column turn limit device as described in claim 8, characterized in that: The inner shaft (102) is provided with a threaded ring (108), and the inner wall of the limiter (103) is provided with a thread that matches the threaded ring (108).

10. The steering column turn limit device as described in claim 4, characterized in that: The first meshing tooth (205) and the second meshing tooth (209) are misaligned.

Images