CN111634298A - Pedal adjusting device and adjustable pedal - Google Patents
Pedal adjusting device and adjustable pedal Download PDFInfo
- Publication number
- CN111634298A CN111634298A CN202010519068.6A CN202010519068A CN111634298A CN 111634298 A CN111634298 A CN 111634298A CN 202010519068 A CN202010519068 A CN 202010519068A CN 111634298 A CN111634298 A CN 111634298A
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- lock
- pedal
- seat
- driving
- cover
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
- B61C17/04—Arrangement or disposition of driving cabins, footplates or engine rooms; Ventilation thereof
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- Automation & Control Theory (AREA)
- Transportation (AREA)
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- Mechanical Control Devices (AREA)
Abstract
The invention provides a pedal adjusting device, which comprises a driving seat, wherein a driving shaft is rotatably arranged on the driving seat, at least one pedal fixing frame is fixedly arranged on the driving shaft, the pedal fixing frame is fixedly connected with a pedal panel of a pedal, the driving shaft drives the pedal panel to rotate when rotating, the inclination angle of the pedal panel is adjusted, a locking state is automatically formed by matching a lock seat, a lock disc, a lock cover, a movably arranged steel ball and the like, and meanwhile, a correlation mechanism, an elastic mechanism and the like are also arranged, so that the inclination angles of different gears of the pedal panel can be accurately adjusted when a driver operates the pedal panel, the pedal adjusting device is suitable for habitual positions of different drivers, the comfort level of the driver in long-time driving is improved, compared with the conventional majority of pedals which are adjusted in an electric driving mode, the pedal adjusting device provided by the, the pedal angle can be conveniently and flexibly adjusted by the driver.
Description
Technical Field
The invention relates to the field of pedals of rail transit, in particular to a pedal adjusting device and an adjustable pedal.
Background
A pedal operated by foot is generally provided at the bottom end of a cab of a rail transit vehicle, a vehicle, or the like, and a driver operates the pedal by touching a pedal button on the pedal in a foot-operated manner. Since the cab of rail transit or vehicles is usually narrow, the feet of drivers are easy to fatigue when driving for a long time, and the comfortable pedal inclination angles of different drivers are different due to the height and the like. Different drivers can reduce the fatigue of the feet when driving for a long time by changing the inclination angle of the pedal to the position where the drivers feel comfortable, or the same driver can adjust the inclination angle of the pedal, thereby adjusting the posture of the feet and achieving the purpose of relaxing. The existing adjustable pedal usually adjusts the inclination angle in an electrically driven manner, however, the structural control of the electrically driven pedal is complex, so that the use cost is high, meanwhile, the pedal is easy to lose efficacy in a humid environment and the like, and the maintenance after the pedal loses efficacy is relatively complex.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a purely mechanical pedal adjusting device, so that a driver can conveniently and flexibly adjust the pedal angle and the driving comfort is improved.
In order to achieve the above purpose, the present invention provides a pedal adjusting device, which includes a driving seat, a driving shaft is rotatably disposed on the driving seat, at least one pedal fixing frame is fixedly disposed on the driving shaft, the pedal fixing frame is fixedly connected to a pedal panel of a pedal, and when the driving shaft rotates, the driving shaft drives the pedal panel to rotate, so as to adjust an inclination angle of the pedal panel.
Furthermore, one end of the driving seat is provided with a driving locking part, the driving locking part comprises a lock seat fixedly connected with the driving seat, a lock disc arranged close to the lock seat and a lock cover arranged close to the other side of the lock disc, the lock seat, the lock disc and the lock cover are all sleeved on the driving shaft, the lock disc is fixedly connected with the driving shaft, and the lock cover can rotate relative to the driving shaft;
the lock is characterized in that a plurality of first taper holes are formed in the lock seat, the first taper holes are distributed around the center of the lock seat in an array mode, communicating holes are formed in the lock disc, a movable lock body is arranged in the communicating holes, a second taper hole is formed in the lock cover, the first taper holes, the communicating holes and the second taper holes are located on the same circumference, the width of the lock body is larger than the length of the communicating holes, an association mechanism is arranged between the lock cover and the lock disc, the association mechanism can switch the synchronous rotation state of the lock cover and the lock disc, the lock cover is further connected with an elastic mechanism, and the elastic mechanism continuously provides elastic rotation force for the lock cover.
Further, the correlation mechanism comprises a limiting pin arranged on the lock cover and a waist-shaped groove arranged on the lock disc, wherein one end of the limiting pin is fixedly connected with the lock cover, and the other end of the limiting pin is movably arranged in the waist-shaped groove.
Furthermore, the elastic mechanism comprises a spring cylinder, a plunger is arranged on the spring cylinder, the end part of the plunger is kept in contact with a connecting arm arranged on one side of the lock cover, and the plunger continuously provides elastic force for the connecting arm.
Furthermore, the connecting arm is further provided with a mounting hole, and a connecting plate is mounted on the mounting hole.
Furthermore, the lock body is a steel ball, and the diameter of the steel ball is larger than the length of the communication hole.
Further, the end part of the driving shaft is also provided with a locking screw and an adjusting gasket.
Further, four groups of first taper holes are arranged on the lock base, each group of first taper holes comprises six taper holes, the angle between every two adjacent first taper holes is 6 degrees, the two adjacent groups of first taper holes correspond to each other at intervals of 90 degrees, the lock disc is provided with four communicating holes at intervals of 90 degrees and the lock body, and the lock cover is provided with four second taper holes at intervals of 90 degrees.
Further, still the cover is equipped with a plurality of parallelly connected torsional springs on the drive shaft, the one end of torsional spring with footboard mount fixed connection, the other end with drive seat fixed connection.
The invention also provides an adjustable pedal which comprises a bottom plate and the pedal panel, wherein the driving seat is fixedly arranged on the bottom plate, one end of the connecting plate is fixedly arranged on the connecting arm of the locking cover, the other end of the connecting plate is contacted with a roller, the roller is rotatably arranged at one end of a pedal, and the other end of the pedal is hinged on the pedal panel.
The scheme of the invention has the following beneficial effects:
the pedal adjusting device provided by the invention has the advantages that the driving shaft is controlled to rotate to drive the pedal panel to rotate in a pedal mode, the locking seat, the locking disc, the locking cover, the movably arranged steel balls and the like are matched to automatically form a locking state, and meanwhile, the association mechanism, the elastic mechanism and the like are also arranged, so that the inclination angles of different gears of the pedal panel can be accurately adjusted when a driver operates the pedal panel, the pedal adjusting device is suitable for the habitual positions of different drivers, the comfort degree of the driver in driving for a long time is improved, compared with the existing pedal adjusting device in which most pedals are adjusted in an electric driving mode, the pedal adjusting device provided by the invention completely adopts a mechanical adjusting structure, the pedal angle can be conveniently and flexibly adjusted by.
Drawings
FIG. 1 is a schematic view of a pedal adjustment device according to the present invention;
FIG. 2 is a schematic view of the driving locking part of the present invention;
FIG. 3 is an exploded view of the lock housing, lock collar and lock cover of the present invention;
FIG. 4 is a schematic view of an adjustable pedal of the present invention;
FIG. 5 is a schematic view of the pedal position structure according to the present invention.
[ description of reference ]
1-a driving seat; 2-a drive shaft; 3-pedal fixing frame; 4-a pedal panel; 5-locking seat; 6-locking the disc; 7-locking the cover; 8-locking screws; 9-adjusting the spacer; 10-a first taper hole; 11-a communicating hole; 12-a lock body; 13-second taper hole; 14-a limit pin; 15-waist-shaped groove; 16-a spring cartridge; 17-a plunger; 18-a linker arm; 19-a connecting plate; 20-mounting holes; 21-torsion spring; 22-a roller; 23-foot pedal.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 1 and 4, embodiment 1 of the present invention provides a pedal adjusting device, which includes a driving base 1, and a driving shaft 2 disposed on the driving base and rotatably connected to the driving base 1 through a bearing. At least one pedal fixing frame 3, three in this embodiment, is sleeved on the driving shaft 3, and the pedal fixing frame 3 and the driving shaft 2 rotate synchronously in a key connection mode. The upper surface of footboard mount 3 and 4 fixed connection of footboard panel of track traffic driver's cabin footboard, consequently when drive shaft 2 is rotatory, can drive footboard panel 4 rotatory to the inclination of adjustment footboard panel 4 adapts to different navigating mate's habitual position, improves the comfort level that the navigating mate drove for a long time.
Compared with the prior pedal adjusting device which adopts an electric driving mode, the pedal adjusting device provided by the invention completely adopts a mechanical driving mode, and a driver can adjust and control the pedal automatically. As shown in fig. 2 and fig. 3, one end of the driving seat 1 is provided with a driving locking portion, which includes a lock seat 5 fixedly connected with the driving seat 1, a lock plate 6 closely attached to the lock seat 5, and a lock cover 7 closely attached to the other side of the lock plate 6. The lock seat 5, the lock disc 6 and the lock cover 7 are circular, through holes are formed in the middle of the lock seat, the lock disc 6 in the middle of the lock seat and the drive shaft are sequentially sleeved on the drive shaft 2 through the through holes, the lock disc is in key connection with the drive shaft 2, the lock disc rotates synchronously along with the drive shaft 2, the lock cover 7 at the outer end is freely sleeved on the drive shaft 2 and is connected through a bearing, and the lock cover can rotate relative to the drive shaft. In addition, a lock screw 8 and an adjustment washer 9 are provided at the end of the drive shaft 2 to restrict axial displacement of the lock cover 7 and the like.
The lock base 5 is provided with a plurality of first taper holes 10, the first taper holes 10 are distributed around the center of the lock base 5 in an array mode, the lock disc 6 is provided with a communicating hole 11, a movable lock body 12 is arranged in the communicating hole 11, the lock cover 7 is provided with a second taper hole 13, the first taper holes 10, the communicating hole 11 and the second taper hole 13 are all located on the same circumference, and the width of the lock body 12 needs to be larger than the length of the communicating hole 11. Initially, the communication hole 11 is aligned with the first tapered hole 10, and the lock body 12 is positioned in the communication hole 11 with its protruding portion in the first tapered hole 10 and the second tapered hole 13 on the other side not aligned with the communication hole 11. During the inclination adjustment, the locking cover 7 is driven to rotate in a pedal mode, so that the second taper hole 13 on the locking cover 7 is aligned with the communication hole 11, at the moment, the locking cover 7 is connected with the locking disc 6 through a correlation mechanism, so that the locking disc 6 can be driven to synchronously rotate when the locking cover 7 is continuously driven to rotate, the driving shaft 2 is driven to rotate, and the inclination of the pedal panel 4 is adjusted. Since the communication hole 11 and the first taper hole 10 have been displaced relatively and are no longer aligned after the lock disk 6 is rotated, the lock body 12 is pressed by the side wall of the lock base 5, moves from the first taper hole 10 to the second taper hole 13, and the other side of the lock body 12 extends out of the communication hole 11 and enters the second taper hole 13.
After the lock disk 6 continues to rotate with the lock cover 7, the second taper hole 13 and the communication hole 11 will gradually align with the other first taper hole 10, and if the driver thinks that the lock disk is adjusted in position, the lock cover 7 can be released. An elastic mechanism is arranged below the lock cover 7, the lock cover 7 is continuously provided with elastic rotary force, the lock cover 7 rotates under the action of the elastic force after being loosened, meanwhile, the association mechanism is not associated any more when the lock cover 7 rotates, and the lock disc 6 cannot rotate synchronously, so that the lock body 12 is extruded through the side wall of the lock cover 7 and is ejected out from the other side and enters the first conical hole 13 aligned at the moment, and the locking state of the pedal panel 4 after angle adjustment is formed.
In practice, the angle of the pedal panel 4 adjusted by the driver usually makes the second taper hole 13 and the communication hole 11 between the two first taper holes 10 not be adjusted exactly. When the driver loosens the lock cover 7 and the lock disc 6 will rotate synchronously under the action of the elastic mechanism until the second taper hole 13 and the communication hole 11 are aligned with the previous first taper hole 10, then the lock cover 7 is driven by the elastic mechanism to rotate continuously, the association mechanism is not associated any more, the lock body 12 enters the first taper hole 10 from the second taper hole 13 and is locked, and the adjustment of the inclination angle of the pedal is completed.
When the driver needs to adjust the pedal angle back, the driver only needs to drive the lock cover 7 to rotate until the second taper hole 13 is aligned with the communication hole 11, and then directly step down the pedal panel to gradually reset the pedal panel and drive the lock disc 6 to rotate. The mechanism is now linked, the locking cap 7 rotates synchronously with the locking disk 6, and the locking body 12 moves from the first conical hole 10 into the second conical hole 13. After the pedal panel 4 is released, as described above, the locking cover 7 and the locking disk 6 will rotate synchronously under the action of the elastic mechanism until the second taper hole 13 and the communication hole 11 are aligned with the previous first taper hole, then the locking cover 7 is driven by the elastic mechanism to rotate continuously, the association mechanism is not associated, and the lock body 12 enters the first taper hole 10 from the second taper hole 13 and is locked, so that the reset adjustment of the pedal inclination angle is completed.
The related mechanism in this embodiment includes a limit pin 14 disposed on the lock cover 7 and a kidney-shaped groove 15 disposed on the lock disc 6, wherein one end of the limit pin 14 is fixedly connected with the lock cover 7, and the other end is movably disposed in the kidney-shaped groove 15. When the second taper hole 13 on the lock cover 7 is aligned with the communication hole 11, the limit pin 14 is located at the bottom end of the waist-shaped groove 15, and at this time, the lock cover 7 is continuously driven to rotate clockwise (the inclination angle is increased), the lock disc 6 can be driven to rotate synchronously, or the lock disc 6 can drive the lock cover 7 to rotate anticlockwise (the inclination angle is decreased) when the pedal panel 4 is restored. When the second taper hole 13 and the communication hole 11 are aligned with the first taper hole 10, the lock cover 7 is driven by the elastic mechanism to rotate, the limit pin 14 gradually moves to the top end of the kidney-shaped groove 15, the lock disc 6 cannot rotate along with the lock cover 7, and the lock body 12 enters the first taper hole 10 from the second taper hole 13 to form a locking state.
In a preferred embodiment, the lock body 12 is a steel ball rolling in the communication hole 11, and has a diameter larger than the length of the communication hole 11, and both ends can protrude out of the communication hole 11 and contact with the tapered surface of the first tapered hole 10 or the second tapered hole 13, thereby forming an adjustment or locking state. And when the steel ball is in contact with one of the tapered holes, the other side thereof does not protrude from the communication hole 11.
In this embodiment, the elastic mechanism is a spring barrel 16, the end of a plunger 17 on the spring barrel 16 is fixedly connected with a connecting arm 18 on the side of the lock cover 7, and the plunger 17 continuously provides elastic rotary force to the lock cover 7. In addition, the connecting arm 18 is further provided with a mounting hole 20 for mounting the connecting plate 19, the connecting plate 19 is directly mounted on the connecting arm 18 through the mounting hole 20, and the driver can drive the lock cover 7 to rotate clockwise by pressing down the connecting plate 19 with his foot.
In a preferred embodiment, four sets of first taper holes 10 are provided on the lock base 5, each set of first taper holes 10 includes six, and the angle between two adjacent first taper holes 10 is preferably 6 °, and the angle between two adjacent sets of corresponding first taper holes 10 is 90 °, so that the pedal can be adjusted to have a six-step inclination angle, and the adjustment range is large. Correspondingly, the lock disc 6 is provided with four communicating holes 11 and steel balls at intervals of 90 degrees, the lock cover 7 is provided with four second taper holes 13 at intervals of 90 degrees, and each group of the first taper holes 10, the communicating holes 11 and the second taper holes 13 can be respectively matched, so that the locking force of the adjusting device is increased, and the reliability is improved.
Of course, it is also possible to directly provide multiple sets of first taper holes 10 on the side wall of the driving seat 1 without providing the lock seat 5, or directly provide the lock seat 5 and the driving seat 1 as an integral structure, which is not limited herein.
As a more preferable embodiment, in this embodiment, the driving shaft 2 is further sleeved with a plurality of torsion springs 21 connected in parallel, the torsion springs 21 are provided with pre-tightening forces, all of which are in a stretching state, one end of each torsion spring 21 is fixed to the pedal fixing frame 3, and the other end of each torsion spring is fixed to the driving seat 1, and when the lock disc 6 is rotated clockwise, the torsion force of the torsion springs 21 enables the waist-shaped groove 15 on the lock disc 6 to be tightly attached to the limit pin 14. When resetting adjustment is carried out, a driver only needs to step on the connecting plate 19 downwards to enable the lock cover 7 to rotate to the second taper hole 13 to be aligned with the communicating hole 11, then the stepping force is removed, the lock disc 6 and the driving shaft 2 can automatically reset under the action of the torsion spring 21, the pedal panel 4 does not need to be operated, and therefore operation is simplified.
Example 2:
as shown in fig. 4 and 5, an embodiment 2 of the present invention provides an adjustable pedal, which employs the pedal adjusting device described in embodiment 1, wherein one end of a connecting plate 19 is fixedly mounted on the connecting arm 18 of the locking cover 7, the other end of the connecting plate is in contact with a roller 22, the roller 22 is rotatably mounted at one end of a pedal 23, the other end of the pedal 23 is hinged to the pedal panel 4, and a driver directly steps on the pedal 23 by foot, so as to drive the roller 22 to press the connecting plate 19 down, thereby driving the locking cover 7 to rotate clockwise, and further adjusting the inclination angle of the pedal panel 4.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a footboard adjusting device, its characterized in that, includes the drive seat, it sets up the drive shaft to rotate on the drive seat, the fixed at least one footboard mount that is provided with in the drive shaft, the footboard panel fixed connection of footboard mount and footboard, when the drive shaft is rotatory, drive the footboard panel is rotatory, adjusts the inclination of footboard panel.
2. The pedal adjusting device according to claim 1, wherein a driving locking portion is disposed at one end of the driving seat, the driving locking portion includes a lock seat fixedly connected to the driving seat, a lock disc disposed closely to the lock seat, and a lock cover disposed closely to the other side of the lock disc, the lock seat, the lock disc, and the lock cover are all sleeved on the driving shaft, the lock disc is fixedly connected to the driving shaft, and the lock cover is rotatable with respect to the driving shaft;
the lock is characterized in that a plurality of first taper holes are formed in the lock seat, the first taper holes are distributed around the center of the lock seat in an array mode, communicating holes are formed in the lock disc, a movable lock body is arranged in the communicating holes, a second taper hole is formed in the lock cover, the first taper holes, the communicating holes and the second taper holes are located on the same circumference, the width of the lock body is larger than the length of the communicating holes, an association mechanism is arranged between the lock cover and the lock disc, the association mechanism can switch the synchronous rotation state of the lock cover and the lock disc, the lock cover is further connected with an elastic mechanism, and the elastic mechanism continuously provides elastic rotation force for the lock cover.
3. The pedal adjusting device according to claim 2, wherein the linking mechanism includes a limiting pin disposed on the lock cover and a waist-shaped groove disposed on the lock disc, one end of the limiting pin is fixedly connected with the lock cover, and the other end is movably disposed in the waist-shaped groove.
4. The pedal adjustment device according to claim 2, wherein the resilient mechanism includes a spring cylinder provided with a plunger, an end portion of the plunger being held in contact with a link arm provided on a side of the lock cover, the plunger continuously providing resilient force to the link arm.
5. The pedal adjustment device according to claim 4, wherein the connecting arm is further provided with a mounting hole, and a connecting plate is mounted on the mounting hole.
6. The pedal adjustment device of claim 2 wherein the lock is a steel ball having a diameter greater than the length of the communication aperture.
7. The pedal adjustment device according to claim 2, wherein the end of the drive shaft is further provided with a locking screw and an adjustment washer.
8. The pedal adjusting device according to claim 2, wherein four sets of the first taper holes are provided on the lock base, each set of the first taper holes includes six, an interval angle between two adjacent first taper holes is 6 °, two adjacent sets of the first taper holes are spaced apart by 90 °, four communication holes spaced apart by 90 ° and the lock body are provided on the lock disc, and four second taper holes spaced apart by 90 ° are provided on the lock cover.
9. The pedal adjusting device according to claim 2, wherein the driving shaft is further sleeved with a plurality of torsion springs connected in parallel, one end of each torsion spring is fixedly connected with the pedal fixing frame, and the other end of each torsion spring is fixedly connected with the driving seat.
10. An adjustable pedal, characterized in that a pedal adjustment device according to any one of claims 1-9 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010519068.6A CN111634298B (en) | 2020-06-09 | 2020-06-09 | Pedal adjusting device and adjustable pedal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010519068.6A CN111634298B (en) | 2020-06-09 | 2020-06-09 | Pedal adjusting device and adjustable pedal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111634298A true CN111634298A (en) | 2020-09-08 |
| CN111634298B CN111634298B (en) | 2021-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010519068.6A Active CN111634298B (en) | 2020-06-09 | 2020-06-09 | Pedal adjusting device and adjustable pedal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111634298B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2113199U (en) * | 1992-02-24 | 1992-08-19 | 王西华 | Castor (steel ball) locking device for chair |
| JPH0958314A (en) * | 1995-08-30 | 1997-03-04 | Central Japan Railway Co | Seat device for vehicle |
| JP2006122122A (en) * | 2004-10-26 | 2006-05-18 | Aisin Seiki Co Ltd | Position adjuster |
| CN204895306U (en) * | 2015-08-17 | 2015-12-23 | 苏州汉实汽车机械有限公司 | Electronic running -board with adjustable |
| CN205344620U (en) * | 2015-12-25 | 2016-06-29 | 浙江吉利汽车研究院有限公司 | Board of stopping for a rest on a walking tour with adjustable car |
| CN108974023A (en) * | 2018-07-20 | 2018-12-11 | 长春冠信瑞达轨道客车配件有限公司 | A kind of subway drivers' cab use is foot-operated |
| CN208978845U (en) * | 2018-11-01 | 2019-06-14 | 吉林省创捷自动化设备有限公司 | For driving indoor footstep mechanism |
| CN209552948U (en) * | 2019-02-15 | 2019-10-29 | 贵州长江汽车有限公司 | A kind of auto pedal of adjustable-angle |
| CN210000129U (en) * | 2019-06-19 | 2020-01-31 | 河北赫尔电子科技有限公司 | novel oil pedal |
-
2020
- 2020-06-09 CN CN202010519068.6A patent/CN111634298B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2113199U (en) * | 1992-02-24 | 1992-08-19 | 王西华 | Castor (steel ball) locking device for chair |
| JPH0958314A (en) * | 1995-08-30 | 1997-03-04 | Central Japan Railway Co | Seat device for vehicle |
| JP2006122122A (en) * | 2004-10-26 | 2006-05-18 | Aisin Seiki Co Ltd | Position adjuster |
| CN204895306U (en) * | 2015-08-17 | 2015-12-23 | 苏州汉实汽车机械有限公司 | Electronic running -board with adjustable |
| CN205344620U (en) * | 2015-12-25 | 2016-06-29 | 浙江吉利汽车研究院有限公司 | Board of stopping for a rest on a walking tour with adjustable car |
| CN108974023A (en) * | 2018-07-20 | 2018-12-11 | 长春冠信瑞达轨道客车配件有限公司 | A kind of subway drivers' cab use is foot-operated |
| CN208978845U (en) * | 2018-11-01 | 2019-06-14 | 吉林省创捷自动化设备有限公司 | For driving indoor footstep mechanism |
| CN209552948U (en) * | 2019-02-15 | 2019-10-29 | 贵州长江汽车有限公司 | A kind of auto pedal of adjustable-angle |
| CN210000129U (en) * | 2019-06-19 | 2020-01-31 | 河北赫尔电子科技有限公司 | novel oil pedal |
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| Publication number | Publication date |
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| CN111634298B (en) | 2021-06-22 |
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