CN214823571U - Automobile steering column with locking device - Google Patents
Automobile steering column with locking device Download PDFInfo
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- CN214823571U CN214823571U CN202120299651.0U CN202120299651U CN214823571U CN 214823571 U CN214823571 U CN 214823571U CN 202120299651 U CN202120299651 U CN 202120299651U CN 214823571 U CN214823571 U CN 214823571U
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- steering column
- toothed plate
- locking
- locking device
- block
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Abstract
The utility model relates to a steering column, concretely relates to automobile steering column with locking device. The automobile steering column consists of a mounting bracket and a steering column, wherein the steering column is mounted on the mounting bracket through a column tube, and a locking device is arranged on the mounting bracket below the steering column. The automobile steering column can lock the position of the steering column by matching the toothed plate with the positioning rack, and can keep the locking state of the toothed plate and the positioning rack through the locking device, namely the locking state of the steering column; the cam block and the guide block in the locking device keep the meshing state of the toothed plate and the positioning rack through the extrusion force between the lifting block and the guide groove instead of keeping the locking of the tubular column through the pretightening force of the bolt, so that the tubular column is not easy to loosen due to abrasion, and the safe driving can be effectively ensured; the problem of current steering column's locking device easily become flexible because of wearing and tearing, can not guarantee safe driving is solved.
Description
Technical Field
The utility model relates to a steering column, concretely relates to automobile steering column with locking device.
Background
Steering column is mostly adjustable tubular column for the car, can realize the regulation at the steering wheel angle to make the driver can select more comfortable angle to manipulate. When an external force is applied to the pipe column when the pipe column is in a non-adjusting state, the angle of the steering pipe column can be changed. In order to protect the safety of a driver, the angle of the steering wheel should not deflect when the automobile collides, so that the contact part between the airbag and the driver cannot deviate after the airbag on the steering wheel is popped up, the contact area is ensured to be large enough, and the driving safety is further ensured. When the traditional automobile steering column is locked, the static friction generated by the pretightening force of the bolt is utilized to lock the steering column, but the vibration caused by the running of a vehicle causes the reciprocating small dislocation of the inner side surface of the bracket and the contact surface of the column tube to cause the contact element to be easily worn, the time is long, the abrasion is accumulated, the steering column is easily loosened, and further the angle of the steering column is loosened, so that the safety driving is not facilitated, and therefore the improvement is necessary.
Disclosure of Invention
The utility model aims at: the automobile steering column with the locking device is not easy to loosen due to abrasion, so that safe driving can be guaranteed, and the problem that the locking device of the existing steering column is easy to loosen due to abrasion is solved.
The technical scheme of the utility model is that:
the utility model provides an automobile steering column with locking device, it comprises installing support and steering column, installs steering column, its characterized in that through the column casing on the installing support: a locking device is arranged on the mounting bracket below the steering column; the locking device comprises a locking shaft, a toothed plate, a cam mechanism and a pressing mechanism, the toothed plate is symmetrically sleeved at two ends of the locking shaft, the cam mechanism is arranged on the outer side of the toothed plate at one end of the locking shaft, and the pressing mechanism is arranged on the outer side of the toothed plate at the other end of the locking shaft.
The toothed plate is of an integrated structure, an assembly through hole is formed in the middle of the toothed plate, ratchets are respectively arranged on the end surfaces of two sides of the assembly through hole, and a plurality of limiting holes are formed in the toothed plate on the inner side of each ratchet; limiting concaves are symmetrically arranged on the upper and lower parts of the end face of the toothed plate between the ratchets, and cantilevers are arranged on the toothed plate outside the limiting concaves in a vertically staggered manner; the toothed plate is connected with the locking shaft in a sleeved mode through the assembling through hole.
The toothed plate on the outer side of the limiting concave is bent.
The cantilever end is provided with a supporting point, and the supporting point is connected with the mounting bracket in an abutting mode.
The cam mechanism consists of a cam block, a guide block and an operating lever, wherein the guide block is arranged on one side of the cam block, and the operating lever is arranged on the other side of the cam block; the cam block and the guide block are respectively connected with the locking shaft in a sleeved mode, and the operating rod is connected with the locking shaft through a connecting nut.
The guide block is provided with guide grooves uniformly distributed in a ring shape, and the guide grooves are provided with lifting inclined planes.
Lifting blocks are uniformly distributed on the lower surface of the cam block and are in sliding connection with the guide grooves; the middle part of the upper surface of the cam block is provided with a connecting boss.
The connecting boss is rectangular.
The end of the operating lever is provided with a connecting square hole, and the connecting square hole is connected with the connecting boss in an inserting manner.
The pressing mechanism consists of a toothed plate cushion block, a locking nut and a thrust needle roller bearing, wherein the locking nut is arranged on one side of the toothed plate cushion block, and the thrust needle roller bearing is arranged between the locking nut and the toothed plate cushion block; the toothed plate cushion block and the thrust needle roller bearing are respectively connected with the locking shaft in a sleeved mode, and the locking nut is in threaded connection with the locking shaft.
The end faces of the toothed plate cushion block and the guide block on one side of the toothed plate are symmetrically provided with limit blocks respectively, the limit blocks are connected with the limit concave plug-in mounting, the toothed plate cushion block and the guide block on two sides of the limit blocks are provided with a plurality of limit rods respectively, and the limit rods are connected with the limit holes in the plug-in mounting.
The mounting bracket is symmetrically provided with adjusting waist holes, the mounting brackets on two sides of each adjusting waist hole are symmetrically provided with positioning racks, and the positioning racks are meshed with the ratchets; the locking shaft is respectively connected with the adjusting waist hole and the column tube in a plug-in manner.
The beneficial effects of the utility model reside in that:
the automobile steering column with the locking device can lock the position of the steering column by matching the toothed plate with the positioning rack, and can keep the locking state of the toothed plate and the positioning rack, namely the locking state of the steering column; the cam block and the guide block in the locking device keep the meshing state of the toothed plate and the positioning rack through the extrusion force between the lifting block and the guide groove instead of keeping the locking of the tubular column through the pretightening force of the bolt, so that the tubular column is not easy to loosen due to abrasion, and the safe driving can be effectively ensured; the problem of current steering column's locking device easily become flexible because of wearing and tearing, can not guarantee safe driving is solved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic front view of the toothed plate of the present invention;
fig. 3 is a schematic bottom view of the toothed plate of the present invention;
fig. 4 is an axial view of the guide block of the present invention;
fig. 5 is a schematic front view of the guide block of the present invention;
fig. 6 is a schematic structural diagram of the cam block of the present invention;
FIG. 7 is a schematic view of the structure in the direction A-A in FIG. 6;
FIG. 8 is a schematic structural view of the joystick of the present invention;
fig. 9 is a schematic view of the locking state of the present invention.
In the figure: 1. installing support, 2, steering column, 3, column tube, 4, locking shaft, 5, pinion rack, 6, assembly through-hole, 7, ratchet, 8, spacing hole, 9, spacing concave, 10, cantilever, 11, strong point, 12, cam piece, 13, guide block, 14, control lever, 15, coupling nut, 16, guide way, 17, lift inclined plane, 18, lifter, 19, connect the boss, 20, connect the square hole, 21, pinion rack cushion, 22, lock nut, 23, bearing pin, 24, stopper, 25, gag lever post, 26, adjust waist hole, 27, location rack.
Detailed Description
The automobile steering column with the locking device comprises an installation support 1 and a steering column 2, wherein the installation support 1 is provided with a column tube 3 through a pin shaft, the column tube 3 is provided with the steering column 2, and the installation support 1 is fixedly connected with an automobile body through a bolt during assembly; when the steering column 2 is adjusted, the column tube 3 can drive the steering column 2 to rotate by taking the pin shaft on the mounting bracket 1 as an axis, so that the angle of the steering column 2 can be adjusted by taking the pin shaft as the axis, and the driving comfort is further ensured; the locking device is arranged on the mounting support 1 below the steering column 2 and comprises a locking shaft 4, a toothed plate 5, a cam mechanism and a pressing mechanism, the toothed plate 5 is symmetrically sleeved at two ends of the locking shaft 4, the toothed plate 5 is of an integrated structure, an assembly through hole 6 is formed in the middle of the toothed plate 5, ratchets 7 are respectively arranged on end surfaces of two sides of the assembly through hole 6, and a plurality of limiting holes 8 are formed in the toothed plate 5 on the inner side of each ratchet 7; the end surface of the toothed plate 5 between the ratchets 7 is provided with limiting recesses 9 in an up-down symmetrical shape, and the toothed plate 5 outside the limiting recesses 9 is in a bent shape; a cantilever 10 is arranged on the toothed plate 5 outside the limiting concave 9 in a vertically staggered manner, a supporting point 11 is arranged at the end of the cantilever 10, and the supporting point 11 is connected with the mounting bracket 1 in an abutting manner; the toothed plate 5 is connected with the locking shaft 4 in a sleeved mode through an assembly through hole 6; the purpose of the bent toothed plate 5 is to keep the end face of the toothed plate 5 where the ratchet 7 is located in a warped state when the toothed plate 5 is in a relaxed state, so that the ratchet 7 can be disengaged under the action of elastic force at the bent position of the toothed plate 5; the cantilever 10 is used for supporting the toothed plate 5 in cooperation with the supporting point 11, and meanwhile, the end face of the toothed plate 5 where the ratchet 7 is located can be enabled to recover a warping state after the toothed plate 5 is in a relaxed state through the elastic force of the cantilever 10 and the elastic force of the bent part of the toothed plate 5; the supporting point 11 is used for supporting the cantilever 10, and simultaneously, the position of the cantilever 10 is maintained through the friction force between the supporting point 11 and the mounting bracket 1, so that the position of the toothed plate 5 is maintained, and the toothed plate 5 is not easy to rotate.
A cam mechanism is arranged on the outer side of the toothed plate 5 at one end of the locking shaft 4, the cam mechanism is composed of a cam block 12, a guide block 13 and an operating lever 14, the guide block 13 is arranged on one side of the cam block 12, and the cam block 12 and the guide block 13 are respectively connected with the locking shaft 4 in a sleeved mode so that the cam block 12 and the guide block 13 can respectively rotate by taking the locking shaft 4 as an axis during adjustment; guide grooves 16 are uniformly distributed on the guide block 13 in a circular ring shape, and lifting inclined planes 17 are arranged on the guide grooves 16; the lower surface of the cam block 12 is uniformly provided with lifting blocks 18, the lifting blocks 18 are in sliding connection with the guide grooves 16, the guide grooves 16 are used for guiding and limiting the movement of the lifting blocks 18 in the process that the cam block 12 and the guide block 13 rotate relative to each other by taking the locking shaft 4 as an axis, and meanwhile, the lifting blocks 18 are guided to lift through the action of the lifting inclined planes 17 and the lifting blocks 18, so that the cam block 12 is guided to lift relative to the guide block 13; a connecting boss 19 is arranged in the middle of the upper surface of the cam block 12, and the connecting boss 19 is rectangular; the other side of the cam block 12 is provided with an operating lever 14, the end of the operating lever 14 is provided with a connecting square hole 20, and the connecting square hole 20 is connected with a connecting boss 19 in a plug-in manner; the operating lever 14 is connected with the locking shaft 4 through a connecting nut 15, and the operating lever 14 has the function that the cam block 12 can be driven to rotate through the square connecting hole 20 and the connecting boss 19 in the rotating process of the operating lever 14 with the locking shaft 4 as an axis, so that the cam block 12 and the guide block 13 rotate relatively.
A pressing mechanism is arranged on the outer side of the toothed plate 5 at the other end of the locking shaft 4, the pressing mechanism is composed of a toothed plate cushion block 21, a locking nut 22 and a thrust needle bearing 23, the locking nut 22 is arranged on one side of the toothed plate cushion block 21, and the thrust needle bearing 23 is arranged between the locking nut 22 and the toothed plate cushion block 21; the toothed plate cushion block 21 and the thrust needle bearing 23 are respectively connected with the locking shaft 4 in a sleeved mode, and the locking nut 22 is in threaded connection with the locking shaft 4; limiting blocks 24 are symmetrically arranged on the end faces of the toothed plate cushion block 21 and the guide block 13 on one side of the toothed plate 5 respectively, the limiting blocks 24 are connected with the limiting concave 9 in an inserted manner, a plurality of limiting rods 25 are arranged on the toothed plate cushion block 21 and the guide block 13 on two sides of the limiting blocks 24 respectively, and the limiting rods 25 are connected with the limiting holes 8 in an inserted manner; pinion rack cushion 21 and guide block 13 cooperate spacing concave 9 and gag lever post 25 cooperation spacing hole 8 through stopper 24 to be connected with pinion rack 5 respectively, make pinion rack 5 and pinion rack cushion 21 and guide block 13 can not rotate relatively, pinion rack 5 can slide along gag lever post 25 and stopper 24, the strong point 11 through pinion rack 5 keeps pinion rack 5 to be difficult for rotating simultaneously, keep pinion rack cushion 21 and guide block 13 to rotate with installing support 5 is difficult for respectively from this, make guide block 13 can rotate with cam block 12 relatively.
The mounting bracket 1 is symmetrically provided with adjusting waist holes 26, the mounting bracket 1 at two sides of the adjusting waist holes 26 is symmetrically provided with positioning racks 27, and the positioning racks 27 are meshed with the ratchets 7; the locking shaft 4 is respectively connected with the waist adjusting hole 26 and the column tube 3 in a plug-in manner; after the angle adjustment is completed, the toothed plate 5 and the mounting bracket 1 are kept unchanged in position by the engagement of the positioning rack 27 and the ratchet 7, and the position of the locking shaft 4 relative to the mounting bracket 1 is further restricted by the toothed plate 5, so that the position of the column tube 3 relative to the mounting bracket 1 is restricted, and thus the position of the steering column tube 2 relative to the mounting bracket 1, that is, the angle of the steering column 2 relative to the mounting bracket 1 is restricted.
When the automobile steering column with the locking device adjusts the angle of the steering column, the operating lever 14 is rotated clockwise, so that the operating lever 14 drives the cam block 12 to rotate clockwise by taking the locking shaft 4 as an axis, and further the cam block 12 rotates clockwise relative to the guide block 13; in the process that the cam block 12 rotates clockwise relative to the guide block 13, when the lifting block 18 on the cam block 12 slides onto the lifting inclined surface 17 of the guide groove 16, the elastic force of the toothed plate 5 and the cantilever 10 pushes the guide block 13 to move towards the cam block 12, so that the distance between the cam block 12 and the guide block 13 is reduced; after the distance between the cam block 12 and the guide block 13 is reduced, the toothed plates 5 at the two sides of the mounting bracket 1 gradually recover to a relaxed state under the action of self elastic force, so that the end surface of the toothed plate 5 where the ratchet 7 is located is in a warped state, and the ratchet 7 is disengaged from the positioning rack 27; after the ratchet 7 is disengaged from the positioning rack 27, the steering column 2 is pushed, so that the steering column 2 rotates by taking the pin shaft of the mounting bracket 1 as an axis, and the angle of the steering column 2 is further adjusted; in the angle adjusting process of the steering column 2, the steering column 2 drives the locking shaft 4 to rotate by taking a pin shaft on the mounting bracket 1 as an axis through the column tube 3, so that the locking shaft 4 slides along the adjusting waist hole 26, and in the sliding process of the locking shaft 4 along the adjusting waist hole 26, the locking shaft 4 drives the toothed plate 5 to move relative to the positioning rack 27; after the steering column 2 is adjusted to the right position, the operating lever 14 is rotated anticlockwise, so that the operating lever 14 drives the cam block 12 to rotate anticlockwise relative to the guide block 13, and in the process that the cam block 12 rotates anticlockwise relative to the guide block 13, the lifting block 18 and the lifting inclined plane 17 interact to increase the distance between the guide block 13 and the cam block 12, so that the guide block 13 extrudes the toothed plate 5 on one side of the guide block 13, and the ratchet 7 on the toothed plate 5 is gradually meshed with the positioning rack 27; in the process that the guide block 13 presses the toothed plate 5, as the distance between the guide block 13 and the cam block 12 is increased, the cam block 12 sequentially passes through the operating lever 14, the connecting nut 15, the locking shaft 4, the locking nut 22 and the thrust needle bearing 23 to drive the toothed plate cushion block 21 to press the toothed plate 5 on one side of the toothed plate cushion block 21, so that the toothed plate 5 on one side of the toothed plate cushion block 21 is meshed with the positioning rack 27; after the toothed plate 5 on one side of the toothed plate cushion block 21 is meshed with the positioning rack 27 and the toothed plate 5 on one side of the extrusion guide block 13 is meshed with the positioning rack 27, the toothed plate 5 locks the position of the column tube 3 relative to the mounting bracket 1 through the locking shaft 4, and even if the position of the steering column 2 relative to the mounting bracket 1 is locked, the position and the angle of the steering column 2 are not easy to change.
The automobile steering column with the locking device can lock the position of the steering column 2 by matching the toothed plate 5 with the positioning rack 27, and can keep the locking state of the toothed plate 5 and the positioning rack 27, namely the locking state of the steering column 2; the cam block 12 and the guide block 13 in the locking device keep the meshing state of the toothed plate 5 and the positioning rack 27 through the extrusion force between the lifting block 18 and the guide groove 16, and the locking of a pipe column is kept through the pretightening force of a bolt, so that the looseness caused by abrasion is not easy to occur, and the safe driving can be effectively ensured; the problem of current steering column's locking device easily become flexible because of wearing and tearing, can not guarantee safe driving is solved.
Claims (10)
1. The utility model provides an automobile steering column with locking device, it comprises installing support (1) and steering column (2), installs steering column (2), its characterized in that through column tube (3) on installing support (1): a locking device is arranged on the mounting bracket (1) below the steering column (2); locking device constitute by locking axle (4), pinion rack (5), cam mechanism and hold-down mechanism, the both ends symmetry cover of locking axle (4) is equipped with pinion rack (5), the pinion rack (5) outside of locking axle (4) one end is provided with cam mechanism, the pinion rack (5) outside of the locking axle (4) other end is provided with hold-down mechanism.
2. The steering column with a locking device for the automobile according to claim 1, wherein: the toothed plate (5) is of an integrated structure, an assembly through hole (6) is formed in the middle of the toothed plate (5), ratchets (7) are respectively arranged on the end faces of two sides of the assembly through hole (6), and a plurality of limiting holes (8) are formed in the toothed plate (5) on the inner side of each ratchet (7); limiting recesses (9) are symmetrically arranged on the upper and lower parts of the end surface of the toothed plate (5) between the ratchets (7), and cantilevers (10) are arranged on the toothed plate (5) outside the limiting recesses (9) in a vertically staggered manner; the toothed plate (5) is connected with the locking shaft (4) in a sleeved mode through the assembling through hole (6).
3. The steering column with a locking device for the automobile according to claim 2, wherein: the toothed plate (5) at the outer side of the limiting concave part (9) is bent.
4. The steering column with a locking device for the automobile according to claim 2, wherein: the end of the cantilever (10) is provided with a supporting point (11), and the supporting point (11) is connected with the mounting bracket (1) in an abutting mode.
5. The steering column with a locking device for the automobile according to claim 1, wherein: the cam mechanism is composed of a cam block (12), a guide block (13) and a control lever (14), wherein the guide block (13) is arranged on one side of the cam block (12), and the control lever (14) is arranged on the other side of the cam block (12); the cam block (12) and the guide block (13) are respectively connected with the locking shaft (4) in a sleeved mode, and the operating rod (14) is connected with the locking shaft (4) through a connecting nut (15).
6. The steering column with a locking device for the automobile according to claim 5, wherein: the guide block (13) is provided with guide grooves (16) in a circular ring shape, and lifting inclined planes (17) are arranged on the guide grooves (16).
7. The steering column with a locking device for the automobile according to claim 5, wherein: lifting blocks (18) are uniformly distributed on the lower surface of the cam block (12), and the lifting blocks (18) are in sliding connection with the guide groove (16); a connecting boss (19) is arranged in the middle of the upper surface of the cam block (12); the end of the operating lever (14) is provided with a connecting square hole (20), and the connecting square hole (20) is connected with the connecting boss (19) in a plug-in manner.
8. The steering column with a locking device for the automobile according to claim 1, wherein: the pressing mechanism is composed of a toothed plate cushion block (21), a locking nut (22) and a thrust needle bearing (23), the locking nut (22) is arranged on one side of the toothed plate cushion block (21), and the thrust needle bearing (23) is arranged between the locking nut (22) and the toothed plate cushion block (21); the toothed plate cushion block (21) and the thrust needle bearing (23) are respectively connected with the locking shaft (4) in a sleeved mode, and the locking nut (22) is in threaded connection with the locking shaft (4).
9. The steering column with a locking device for the automobile according to claim 1, wherein: the end faces of the toothed plate cushion block (21) and the guide block (13) on one side of the toothed plate (5) are symmetrically provided with limiting blocks (24) respectively, the limiting blocks (24) are connected with the limiting concave parts (9) in an inserted mode, the toothed plate cushion blocks (21) and the guide block (13) on two sides of the limiting blocks (24) are provided with a plurality of limiting rods (25) respectively, and the limiting rods (25) are connected with the limiting holes (8) in an inserted mode.
10. The steering column with a locking device for the automobile according to claim 1, wherein: the mounting bracket (1) is symmetrically provided with adjusting waist holes (26), the mounting bracket (1) at two sides of each adjusting waist hole (26) is symmetrically provided with positioning racks (27), and the positioning racks (27) are meshed with the ratchets (7); the locking shaft (4) is respectively connected with the adjusting waist hole (26) and the column tube (3) in a plug-in manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120299651.0U CN214823571U (en) | 2021-02-03 | 2021-02-03 | Automobile steering column with locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120299651.0U CN214823571U (en) | 2021-02-03 | 2021-02-03 | Automobile steering column with locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214823571U true CN214823571U (en) | 2021-11-23 |
Family
ID=80005150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120299651.0U Active CN214823571U (en) | 2021-02-03 | 2021-02-03 | Automobile steering column with locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214823571U (en) |
-
2021
- 2021-02-03 CN CN202120299651.0U patent/CN214823571U/en active Active
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