CN110877651A - Steering linkage mechanism of bicycle - Google Patents
Steering linkage mechanism of bicycle Download PDFInfo
- Publication number
- CN110877651A CN110877651A CN201811028861.5A CN201811028861A CN110877651A CN 110877651 A CN110877651 A CN 110877651A CN 201811028861 A CN201811028861 A CN 201811028861A CN 110877651 A CN110877651 A CN 110877651A
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- steering
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- connecting piece
- bicycle
- steering linkage
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- 230000005540 biological transmission Effects 0.000 claims abstract description 92
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 230000033001 locomotion Effects 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 3
- 230000002146 bilateral effect Effects 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K21/00—Steering devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
The invention discloses a bicycle steering linkage mechanism, which belongs to the field of mechanical steering transmission and is a bilateral pull rod structure with angle limit. The invention is particularly suitable for a middle-mounted type loading bicycle, the structure overcomes the defects of unbalanced stress and poor rigidity in the traditional single-side single-pull-rod structure on one hand, and the steering angle limiting piece arranged on the other hand can ensure that the steering connecting rod mechanism can run safely and reliably and avoid motion interference.
Description
Technical Field
The invention belongs to the field of mechanical steering transmission, and particularly relates to a bicycle steering linkage mechanism.
Background
The bicycle still has certain year thing function concurrently as the main vehicle of people daily commute, and traditional bicycle carries the thing position and divide into leading and rearmounted, and leading year thing is the mode of carrying thing through preceding goods shelves or preceding basket, and rearmounted thing is the mode of carrying thing through back goods shelves or back basket. Whether the front-mounted or the rear-mounted structure is arranged, when going up and down slopes, the gravity center can incline forwards or backwards, so that shaking is easily caused, and the safety coefficient is low. Meanwhile, if the carrying volume and the carrying weight are too large, great potential safety hazards exist. Therefore, a center-loading bicycle has been proposed to solve the above problems, in which goods are placed in the middle of the bicycle, and the center of gravity is placed in the middle of the whole bicycle to keep the center of gravity of the bicycle stable to the maximum extent in a loading state. However, the central loading bicycle is complex in structure, the handle bar of the traditional bicycle is arranged on the vertical tube of the front fork and drives the front fork to rotate through rotating the handle bar to realize the steering function, and the steering function can be realized by connecting the front fork of the central loading bicycle and the handle bar through a steering pull rod.
Then, the steering mechanism of the existing middle-mounted loading bicycle is of a single-side single-pull-rod structure, and obvious unbalanced stress feeling can be felt when the front fork is operated to steer or return. Meanwhile, the single pull rod has a defect in the rigidity of the mechanism. Furthermore, the steering mechanism of the existing middle-mounted loading bicycle lacks a necessary angle limiting device or a steering limiting device, and is easy to oversteer to cause movement interference.
Disclosure of Invention
In view of the above, the invention adopts a double-pull-rod limiting structure, and is particularly suitable for a middle-mounted load-carrying bicycle, the structure overcomes the defects of unbalanced stress and poor rigidity in the traditional single-side single-pull-rod structure on one hand, and the arranged steering angle limiting piece can ensure that the steering link mechanism can run safely and reliably and avoid motion interference on the other hand.
The invention solves the problems through the following technical means:
the utility model provides a bicycle steering linkage, installs and is used for the bicycle front wheel to turn to between frame and front wheel front fork, its characterized in that, including turning to standpipe, steering linkage, turning to interlock piece, first transmission connecting piece, second transmission connecting piece and cardan shaft, wherein:
the steering vertical pipe is rotatably arranged in a vertical sleeve of the frame;
the number of the steering pull rods is two, and the steering pull rods are divided into a left steering pull rod and a right steering pull rod;
the middle part of the steering linkage plate is arranged at the bottom of the steering vertical pipe and can rotate along with the steering vertical pipe;
two ends of the steering linkage sheet are respectively provided with a first transmission connecting piece, the number of the first transmission connecting pieces is two, and the first transmission connecting pieces are divided into a left first transmission connecting piece and a right first transmission connecting piece;
the number of the second transmission connecting pieces is two, and the second transmission connecting pieces are divided into a left second transmission connecting piece and a right second transmission connecting piece, one end of the left second transmission connecting piece is connected with a left first transmission connecting piece, the other end of the left second transmission connecting piece is connected with a left steering pull rod, one end of the right second transmission connecting piece is connected with a right first transmission connecting piece, and the other end of the right second transmission connecting piece is connected with a right steering pull rod;
the other end of the left steering pull rod and the other end of the right steering pull rod are connected with a front wheel front fork through universal shafts.
Furthermore, the middle part of the steering linkage plate is provided with a middle hole for installing a steering vertical pipe, the two ends of the steering linkage plate are provided with side holes for installing a first transmission connecting piece, and the steering linkage plate is provided with two steering angle limiting plates which are centrosymmetric.
Furthermore, the steering angle limiting sheet is of a V-shaped structure, and the side face of the V-shaped structure can be attached to the frame when the steering linkage sheet rotates to a certain angle, so that excessive steering is avoided.
Furthermore, first transmission connection spare includes the pivot and sets up the U type spread groove on the pivot lateral wall, be provided with slotted wall hole on the U type spread groove.
Furthermore, the second transmission connecting piece is a hollow cylindrical structure with a groove in one side, the groove edge is turned outwards to form a connecting wall, a groove wall hole is formed in the connecting wall, and a connection flat head with a hole is arranged at one end, close to the first transmission connecting piece, of the hollow cylindrical structure.
Furthermore, the steering pull rod comprises a straight rod, a first connecting elbow, an outer expanding rod, a second connecting elbow, an upper inclined rod and a third connecting elbow which are fixedly connected in sequence, wherein one end of the straight rod is installed in the second transmission connecting piece, and the third elbow is connected with the front wheel front fork through a universal shaft.
Furthermore, a base for mounting a universal shaft is arranged on a fork arm of the front wheel front fork.
Furthermore, the base of the universal shaft is arranged in the middle of the fork arm.
The bicycle steering linkage mechanism has the following beneficial effects:
(1) the steering linkage mechanism can improve the condition that the stress of the existing single-pull-rod structure is uneven during operation, and improve the overall safety of the steering structure. Left pull rod, right pull rod are connected the front wheel front fork respectively through the cardan shaft, and vertical, transverse transmission can be realized to this cardan shaft, consequently, whole system can effectively clear up the external interference power when normal use or receive unexpected external force to interfere, improves the operating stability of product.
(2) The steering angle limiting pieces symmetrically arranged on the steering linkage pieces effectively improve the safety of the whole vehicle and avoid motion interference or potential safety hazards caused by over steering.
(3) When the vertical angles of the front wheel front fork and the steering vertical pipe are different, the connecting mode of longitudinal and transverse multi-degree of freedom of the first transmission connecting piece and the second transmission connecting piece can avoid dead angles of the connecting rod mechanism.
Drawings
The invention is further described below with reference to the figures and examples.
FIG. 1 is a front elevational view of a bicycle steering linkage assembly in accordance with the present invention;
FIG. 2 is a bottom plan view of a bicycle steering linkage provided by the present invention;
FIG. 3 is a schematic view of a particular application of a bicycle steering linkage mechanism in accordance with the present invention;
FIG. 4 is a schematic view of the mounting structure of the frame and the steering stem according to the present invention;
FIG. 5 is a schematic view of the mounting structure of the steering linkage plate of the present invention;
fig. 6 is a schematic view of the mounting structure of the steering rod and the front fork of the front wheel in the present invention.
In the figure, 1-front wheel front fork, 101-base, 2-frame, 201-sleeve, 3-steering vertical tube, 4-steering pull rod, 41-left pull rod, 42-right pull rod, 401-straight rod, 402-first connecting elbow, 403-external expanding rod, 404-second connecting elbow, 405-upper inclined rod, 406-third connecting elbow, 5-steering linkage sheet, 501-middle hole, 502-side hole, 503-steering angle limiting sheet, 504-fixing component, 6-first transmission connecting piece, 601-rotating shaft, 602-U type connecting groove, 603-groove wall hole, 7-second transmission connecting piece, 701-groove, 702-connecting wall, 703-connecting flat head and 8-universal shaft.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, a bicycle steering linkage is mounted between a front wheel fork 1 and a frame 2 for steering a front wheel of a bicycle. The steering linkage mechanism comprises a steering vertical pipe 3, a steering pull rod 4, a steering linkage plate 5, a first transmission connecting piece 6, a second transmission connecting piece 7 and a universal shaft 8.
Concretely, turn to that standpipe 3 is rotatable to be installed in frame 2's vertical sleeve pipe 201, turn to and can set up the pivot between standpipe 3 and the sleeve pipe 201 in order to realize turning to the rotatable installation of standpipe 3, the top that turns to standpipe 3 is connected with and turns to handlebar or steering wheel, and the bottom that turns to standpipe 3 is connected with and turns to interlock piece 5.
In fig. 1, the number of the tie rods 4 is two, and the tie rods 4 are divided into a left tie rod 41 and a right tie rod 42, which cooperate with each other for steering operation of the front wheels. Specifically, the steering linkage 4 includes a straight rod 401, a first connecting elbow 402, an outer expanding rod 403, a second connecting elbow 404, an upper slanting rod 405 and a third connecting elbow 406, which are fixedly connected in sequence, wherein one end of the straight rod 401 is installed in the second transmission connecting piece 7, and the third elbow is connected with the front wheel fork 1 through a universal shaft 8.
The straight rod 401, the first connecting bend 402, the outer expanding rod 403, the second connecting bend 404, the upper slanting rod 405 and the third connecting bend 406 may be connected by a sleeve or may be fixed by welding. As can be seen from figures 1 and 3,
in order to avoid the steering linkage 4 from interfering with the front wheels and the front fender during the rotation process, and to avoid the steering linkage 4 from interfering with the loading frame and realizing the maximum turning angle, the steering linkage 4 is specially designed into a shape structure that a straight rod 401, an outward expansion rod 403 and an upper inclined rod 405 are combined.
As shown in fig. 4 and 5, the middle portion of the steering linkage plate 5 is provided with a middle hole 501 for installing the steering vertical tube 3, two ends of the steering linkage plate 5 are provided with side holes 502 for installing the first transmission connector 6, and the steering linkage plate 5 is provided with two steering angle limiting plates 503 with central symmetry.
In the figure, the steering angle limiting plate 503 of the present embodiment is a V-shaped structure, and the side surface of the V-shaped structure can be attached to the frame 2 when the steering linkage plate 5 rotates to a certain angle, so as to avoid over-steering.
Specifically, the middle part of the steering linkage plate 5 is installed at the bottom of the steering vertical pipe 3 through the fixing component 504 and can rotate along with the steering vertical pipe 3, the two ends of the steering linkage plate 5 are respectively provided with the first transmission connecting piece 6,
the fixing assembly 504 comprises a fixing screw at the bottom of the steering stack 3 and a bearing mounted between the fixing screw and the central hole 501. The number of the first transmission connecting pieces 6 is two, and the first transmission connecting pieces 6 are divided into a left first transmission connecting piece and a right first transmission connecting piece.
It should be noted that the first transmission connecting member 6 includes a rotating shaft 601 and a U-shaped connecting groove 602 disposed on a side wall of the rotating shaft 601, and a groove wall hole is disposed on the U-shaped connecting groove 602. The rotating shaft 601 of the first transmission connecting piece 6 is connected with the side hole 502 of the steering linkage 5 through a common bolt.
Specifically, the number of the second transmission connecting pieces 7 is two, and the two second transmission connecting pieces are divided into a left second transmission connecting piece and a right second transmission connecting piece. It should be noted that the second transmission connecting member 7 is a hollow cylindrical structure with a slot 701 at one side, the edge of the slot 701 is turned outwards to form a connecting wall 702, a slot wall hole is formed in the connecting wall 702, and a connecting flat head 703 with a hole is arranged at one end of the hollow cylindrical structure close to the first transmission connecting member 6.
During specific connection, the flat head 703 of the left second transmission connecting piece is connected with the U-shaped connecting groove 602 of the left first transmission connecting piece through a common bolt, the left steering pull rod 41 is installed inside the left second transmission connecting piece, and due to the fact that the groove 701 is formed in one side of the left second transmission connecting piece, the left steering pull rod 41 is plugged into the left second transmission connecting piece and then fastened through a bolt or a screw, the connecting wall 702 is tightened, so that the inner diameter of the left second transmission connecting piece is reduced, and the left steering pull rod 41 and the left second transmission connecting piece are tightly fixed. Similarly, the flat head 703 of the right second transmission connecting piece is connected with the U-shaped connecting groove 602 of the right first transmission connecting piece through a bolt (number), the right second transmission connecting piece is internally provided with the right steering pull rod 42, and due to the fact that the groove 701 is formed in one side of the right second transmission connecting piece, the right steering pull rod 42 is plugged into the right second transmission connecting piece and then fastened through a bolt or a screw, the connecting wall 702 is tensioned so that the inner diameter of the right second transmission connecting piece is reduced, and the right steering pull rod 42 and the left second transmission connecting piece are tightly fixed.
As shown in fig. 6, the other end of the left tie rod 41 and the other end of the right tie rod 42 are connected to the front wheel fork 1 via the universal shaft 8. In the figure, a base 101 for mounting the universal shaft 8 is provided on a yoke of the front wheel fork 1, and the base 101 for the universal shaft 8 is provided at a middle position of the yoke.
Specifically, the cardan shaft 8 uses a joint bearing cardan shaft of the model ST-8 TK.
In actual work, a user rotates a handlebar, the handlebar sequentially drives the steering vertical pipe 3 and the steering linkage plate 5 to rotate, the rotation of the steering linkage plate 5 drives the left first transmission connecting piece and the right first transmission connecting piece to move, and the left first transmission connecting piece and the right first transmission connecting piece are respectively arranged on two sides of the steering linkage plate 5, so that the movement directions of the left first transmission connecting piece and the right first transmission connecting piece are different, and when the left first transmission connecting piece extends out, the right first transmission connecting piece retracts; when the left first transmission connecting piece is retracted, the right first transmission connecting piece extends out. Because the first transmission connecting piece 6 is connected with the steering linkage rod through the second transmission connecting piece 7, the forward rotation and the reverse rotation of the steering linkage plate 5 drive the left pull rod 41 and the right pull rod 42 to respectively do pushing and pulling motions, and the pushing and pulling motions of the left pull rod 41 and the right pull rod 42 can realize that the front wheel front fork 1 rotates by a specific angle through the rotation of the universal shaft 8. In the steering process, the side surface of the steering angle limiting sheet 503 can be attached to the frame 2 to avoid over-steering.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a bicycle turns to link mechanism, installs and is used for the bicycle front wheel to turn to between front wheel front fork (1) and frame (2), its characterized in that, including turning to standpipe (3), turning to pull rod (4), turning to interlock piece (5), first transmission connecting piece (6), second transmission connecting piece (7) and cardan shaft (8), wherein:
the steering vertical pipe (3) is rotatably arranged in a vertical sleeve (201) of the frame (2);
the number of the steering pull rods (4) is two, and the steering pull rods (4) are divided into a left steering pull rod (41) and a right steering pull rod (42);
the middle part of the steering linkage plate (5) is arranged at the bottom of the steering vertical pipe (3) and can rotate along with the steering vertical pipe (3);
two ends of the steering linkage sheet (5) are respectively provided with a first transmission connecting piece (6), the number of the first transmission connecting pieces (6) is two, and the first transmission connecting pieces (6) are divided into a left first transmission connecting piece and a right first transmission connecting piece;
the number of the second transmission connecting pieces (7) is two, and the two second transmission connecting pieces are divided into a left second transmission connecting piece and a right second transmission connecting piece, one end of the left second transmission connecting piece is connected with a left first transmission connecting piece, the other end of the left second transmission connecting piece is connected with a left steering pull rod (41), one end of the right second transmission connecting piece is connected with a right first transmission connecting piece, and the other end of the right second transmission connecting piece is connected with a right steering pull rod (42);
the other end of the left steering pull rod (41) and the other end of the right steering pull rod (42) are connected with a front wheel front fork (1) through a universal shaft (8).
2. The steering linkage mechanism of the bicycle as claimed in claim 1, wherein the middle of the steering linkage plate (5) is provided with a center hole (501) for mounting the steering standpipe (3), the two ends of the steering linkage plate (5) are provided with side holes (502) for mounting the first transmission connector (6), and the steering linkage plate (5) is provided with two steering angle limiting plates (503) which are centrosymmetric.
3. The steering linkage mechanism of the bicycle as claimed in claim 2, wherein the steering angle limiting plate (503) is a V-shaped structure, and the side surface of the V-shaped structure can be attached to the frame (2) to avoid over-steering when the steering linkage plate (5) rotates to a certain angle.
4. A bicycle steering linkage according to claim 3, wherein the first transmission linkage (6) comprises a shaft (601) and a U-shaped coupling slot (602) provided in a side wall of the shaft (601), the U-shaped coupling slot (602) being provided with a slot wall aperture.
5. A bicycle steering linkage according to claim 4, characterised in that the second drive connection member (7) is a hollow cylindrical structure with a slot (701) in one side, the edge of the slot (701) being turned outwards to form a connection wall (702), the connection wall (702) being provided with a slot wall aperture, and the hollow cylindrical structure being provided with a connection flat head (703) with an aperture at an end adjacent the first drive connection member (6).
6. A bicycle steering linkage according to claim 5, characterised in that the steering tie-rod (4) comprises a straight rod (401), a first connecting bend (402), an outer expanding rod (403), a second connecting bend (404), an upper diagonal rod (405) and a third connecting bend (406) which are fixedly connected in sequence, wherein one end of the straight rod (401) is mounted in the second transmission connector (7), and the third bend is connected with the front wheel fork (1) by a cardan shaft (8).
7. A bicycle steering linkage according to claim 6, characterised in that the yoke of the front wheel fork (1) is provided with a base (101) on which the cardan shaft (8) is mounted.
8. A bicycle steering linkage according to claim 7, characterised in that the base (101) of the cardan shaft (8) is arranged in the middle of the yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811028861.5A CN110877651A (en) | 2018-09-05 | 2018-09-05 | Steering linkage mechanism of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811028861.5A CN110877651A (en) | 2018-09-05 | 2018-09-05 | Steering linkage mechanism of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110877651A true CN110877651A (en) | 2020-03-13 |
Family
ID=69726889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811028861.5A Pending CN110877651A (en) | 2018-09-05 | 2018-09-05 | Steering linkage mechanism of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110877651A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112918602A (en) * | 2020-08-06 | 2021-06-08 | 天津富士达自行车工业有限公司 | Front-mounted cargo-carrying bicycle frame |
| CN115180058A (en) * | 2021-04-02 | 2022-10-14 | 佛山市新玛拓机车部件实业有限公司 | Turning adjusting device for motorcycle and motorcycle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2385573A (en) * | 2002-02-25 | 2003-08-27 | John Wu | Auxiliary steering device for a children's cycle |
| CN202783592U (en) * | 2012-04-28 | 2013-03-13 | 厦门坤骑复材科技有限公司 | Bicycle veering device |
| US8684387B1 (en) * | 2012-11-26 | 2014-04-01 | NTS Works, Inc. | Cargo cycle steering system |
| WO2017124117A1 (en) * | 2016-01-14 | 2017-07-20 | Scott Taylor | Cargo bicycle conversion system |
| CN107922028A (en) * | 2015-06-19 | 2018-04-17 | Pi制造公司 | It is convertible into the bicycle of cart |
| CN208789864U (en) * | 2018-09-05 | 2019-04-26 | 天津市路士美科技发展有限公司 | A kind of turning of bicycle link mechanism |
-
2018
- 2018-09-05 CN CN201811028861.5A patent/CN110877651A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2385573A (en) * | 2002-02-25 | 2003-08-27 | John Wu | Auxiliary steering device for a children's cycle |
| CN202783592U (en) * | 2012-04-28 | 2013-03-13 | 厦门坤骑复材科技有限公司 | Bicycle veering device |
| US8684387B1 (en) * | 2012-11-26 | 2014-04-01 | NTS Works, Inc. | Cargo cycle steering system |
| CN107922028A (en) * | 2015-06-19 | 2018-04-17 | Pi制造公司 | It is convertible into the bicycle of cart |
| WO2017124117A1 (en) * | 2016-01-14 | 2017-07-20 | Scott Taylor | Cargo bicycle conversion system |
| CN208789864U (en) * | 2018-09-05 | 2019-04-26 | 天津市路士美科技发展有限公司 | A kind of turning of bicycle link mechanism |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112918602A (en) * | 2020-08-06 | 2021-06-08 | 天津富士达自行车工业有限公司 | Front-mounted cargo-carrying bicycle frame |
| CN115180058A (en) * | 2021-04-02 | 2022-10-14 | 佛山市新玛拓机车部件实业有限公司 | Turning adjusting device for motorcycle and motorcycle |
| CN115180058B (en) * | 2021-04-02 | 2023-11-10 | 佛山市新玛拓机车部件实业有限公司 | Turning adjusting device for motorcycle and motorcycle |
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