CN107933584A - City rail vehicle liftable driver rides - Google Patents
City rail vehicle liftable driver rides Download PDFInfo
- Publication number
- CN107933584A CN107933584A CN201711119281.2A CN201711119281A CN107933584A CN 107933584 A CN107933584 A CN 107933584A CN 201711119281 A CN201711119281 A CN 201711119281A CN 107933584 A CN107933584 A CN 107933584A
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- China
- Prior art keywords
- button
- driver
- sleeve
- sliding block
- guard housing
- Prior art date
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Classifications
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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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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
- Passenger Equipment (AREA)
Abstract
City rail vehicle liftable driver, which rides, belongs to city railway vehicle driver's foot pedal apparatus field with lift adjustment, it includes the anti-guard housing of pedal, resetting push-button mechanism, button, air spring, multiple treadle supporting seats, sliding block fixed seat, slide pillar mechanism and base.The height of driver's footrest mechanism of the present invention can be continuously adjustable in 100 to 220mm altitude range, the driver rides the elemental height that can arbitrarily set lifting platform mechanism by slide pillar mechanism according to the actual requirements, and the buying client to railcar provides more selection spaces.Button is arranged on the center of footrest mechanism, and pedal still leaves enough width surpluses in the both sides of the anti-guard housing of button, so as to remaining space when driver's normal operating is foot-operated in pushes pedals, avoids stepping on operation by mistake to button.The anti-guard housing of button is used to carry out position limitation protection to the limit that moves down of button, to prevent resetting push-button mechanism excessively moving down and be destroyed because of button.
Description
Technical field
The invention belongs to have the function of city railway vehicle driver's foot pedal apparatus field of lift adjustment, and in particular to a kind of
City rail vehicle liftable driver rides.
Background technology
The similar brake pedal with automobile of driver's foot pedal apparatus of rail vehicle, is the foot that driver controls vehicle gait of march
Operating mechanism is stepped on, existing driver rides the lower part for being generally arranged at driving position, and does not possess elevating control function.Due to track column
The driving position height limitation of car so that the lower limit of the height of seat of driver must adapt to the height of driving position, therefore, it is impossible to logical
Cross the method for further reducing adjustment driver's chair height and be that the drivers of different heights is provided which enough operated by foot distances,
When thus causing train driver operation existing driver of the height less than 1.7 meters foot-operated, poor apart from accessibility, comfort has
Limit, and be easy to cause driving fatigue or even there is the risk for triggering operating accident.
Therefore, it is necessary to develop a city railway vehicle driver's foot pedal apparatus with lift adjustment.
The content of the invention
In order to solve the existing driving position height limitation due to track train, the height of seat adjusting range of driver is limited
System, it is therefore necessary to a city railway vehicle driver's foot pedal apparatus with lift adjustment is developed, to overcome height
When the existing driver of train driver operation less than 1.7 meters is foot-operated, poor apart from accessibility, comfort is limited, and is easy to cause
Even there is the technical problem for triggering operating accident risk in driving fatigue, the present invention provides a kind of city rail vehicle liftable driver's foot
Step on.
The technical solution adopted for solving the technical problem of the present invention is as follows：
City rail vehicle liftable driver rides, it includes the anti-guard housing of pedal, resetting push-button mechanism, button, air spring, more
A treadle supporting seat, sliding block fixed seat, slide pillar mechanism and base；The end face of pedal is equipped with button pass through hole；Slide pillar
The lower end of mechanism is vertically fixed on the center of base, and sliding block fixed seating is connected in the upper end of slide pillar mechanism, both it；Step on
The lower end of plate is connected by multiple treadle supporting seats with sliding block fixed seat；The interior of slide pillar mechanism is inserted into the lower end of air spring
Portion, is connected both it；The upper end of air spring is inserted into and is fixed on the inside of resetting push-button mechanism；The anti-guard housing of button, which is fixed on, to be stepped on
The upper surface of plate, the upper surface of the anti-guard housing of button are equipped with button protection block hole, and the upper end of resetting push-button mechanism, which sequentially passes through, presses
Button protects block hole and button pass through hole, and is exposed to the outside of the anti-guard housing upper surface of button；
The pedal, resetting push-button mechanism and the anti-guard housing of button collectively form a footrest mechanism, air spring, multiple
Treadle supporting seat, sliding block fixed seat, slide pillar mechanism and base collectively form a lifting platform mechanism.
The slide pillar mechanism includes guide rail upright columns and four sliding blocks, and guide rail upright columns are the hollow cylindrical knot of tetragonous
Structure, its four vertical lateral walls are respectively equipped with a sliding slot, the sliding slot matching corresponding with one respectively of described four sliding blocks
And it is slidably connected；The sliding block fixed seat is the rectangle lantern ring, its coaxial sleeve in the outside of guide rail upright columns, four sliding blocks respectively with
One madial wall of sliding block fixed seat is connected.
The center of the sliding block is equipped with screw hole, and four sliding blocks are fixed on corresponding one by a sliding block positioning screw
In sliding slot, the height of four sliding blocks is identical.
The resetting push-button mechanism includes button, sleeve, reseting pressuring spring, sleeve bottom end cover, nylon back plate and lower end cover lock
Tight screw, the button, reseting pressuring spring, sleeve bottom end cover and nylon back plate are coaxially nested in the inside of sleeve；The nylon
The center of backing plate and bottom end cover lock-screw is equipped with piston rod through-hole, and the piston rod upper end of air spring is equipped with external thread section,
It is inserted into inside resetting push-button mechanism by two piston rod through-holes, and by piston rod fastening bolt be locked in
The upper surface of nylon back plate；The upper end of reseting pressuring spring is inserted into the inside of button, its lower end is by nylon back plate support and coaxial sleeve
In the external thread section of air spring and the outside of piston rod fastening bolt；Propped up by sleeve bottom end cover the lower end of nylon back plate support
Support；Sleeve bottom end cover is coaxially blocked at the lower ending opening of sleeve, and side wall leads to equipped with sleeve lateral wall at the lower ending opening of sleeve
Hole, bottom end cover lock-screw through sleeve lateral wall through hole and are fixed sleeve bottom end cover.
The inside of the air spring has stroke self-locking mechanism.
The anti-guard housing of button is metal plate groove structure, its metal plate slot opening is downward, the two side walls of its metal plate groove
On be equipped with horizontal bending flange, the anti-guard housing of button is fixed on the upper surface center line of pedal by its bending flange；Button
Protection block hole is opened on the center line of metal plate groove floor.
The beneficial effects of the invention are as follows：The driver rides the air bullet that freely can be adjusted and reset by height
Spring so that the height of footrest mechanism can be continuously adjustable in 100 to 220mm altitude range, four guide rail upright columns and four
A sliding block matches respectively, and together decides on the structure setting of the height of sliding block fixed seat so that city rail vehicle of the invention can rise
Drop driver rides the elemental height that can arbitrarily set lifting platform mechanism by the slide pillar mechanism according to the actual requirements, to ground
The buying client of iron vehicle provides more selection spaces.Button is arranged on the center of footrest mechanism, and pedal is prevented in button
Enough width surpluses are still left in the both sides of guard housing, remaining space when being ridden so as to driver's normal operating in pushes pedals,
Avoid stepping on operation by mistake to button.The anti-guard housing of button be used for button move down the limit carry out position limitation protection, with prevent reset by
The structures such as reseting pressuring spring, sleeve bottom end cover, nylon back plate and air spring inside button mechanism because button excessively moving down and
It is destroyed.
In addition, city rail vehicle liftable driver ride also have it is simple and practical in structure, it is easy to operate, it is of low cost, just
In popularize the advantages that.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram that city rail vehicle liftable driver of the present invention rides；
Fig. 2 is the footrest mechanism of the present invention and the explosion assembling schematic diagram of lifting platform mechanism；
Fig. 3 is that city rail vehicle liftable driver of the present invention rides the structure diagram under another perspective view；
Fig. 4 is the explosion assembling schematic diagram of the footrest mechanism of the present invention；
Fig. 5 is the axial cross-sectional views that city rail vehicle liftable driver of the present invention rides；
Fig. 6 is the partial enlarged view of I parts in Fig. 5.
Embodiment
The present invention is described in further details below in conjunction with the accompanying drawings.
As shown in Figures 1 to 6, city rail vehicle liftable driver of the invention ride including pedal 1, resetting push-button mechanism 2,
The anti-guard housing 3 of button, air spring 4, multiple treadle supporting seats 5, sliding block fixed seat 6, slide pillar mechanism 7 and base 8.Pedal 1
End face be equipped with button pass through hole 1-1.The lower end of slide pillar mechanism 7 is vertically fixed on the center of base 8, sliding block fixed seat 6
The upper end of slide pillar mechanism 7 is sleeved on, is connected both it.The lower end of pedal 1 passes through multiple treadle supporting seats 5 and sliding block fixed seat
6 are connected.The inside of the lower end insertion slide pillar mechanism 7 of air spring 4, is connected both it.The upper end insertion of air spring 4 is simultaneously
It is fixed on the inside of resetting push-button mechanism 2.The anti-guard housing 3 of button is fixed on the upper surface of pedal 1, the upper surface of the anti-guard housing 3 of button
Block hole 3-1 is protected equipped with button, the upper end of resetting push-button mechanism 2 is sequentially through button protection block hole 3-1 and button pass through hole
1-1, and it is exposed to the outside of anti-3 upper surface of guard housing of button.
Pedal 1, resetting push-button mechanism 2 and the anti-guard housing 3 of button collectively form a footrest mechanism, air spring 4, four
Treadle supporting seat 5, sliding block fixed seat 6, slide pillar mechanism 7 and base 8 collectively form a lifting platform mechanism.
It is hollow tetragonous column casing that slide pillar mechanism 7, which includes guide rail upright columns 7-2 and four sliding block 7-1, guide rail upright columns 7-2,
Shape structure, its four vertical lateral walls are respectively equipped with a sliding slot, four sliding block 7-1 sliding slots corresponding with one respectively
Match somebody with somebody and be slidably connected.Sliding block fixed seat 6 be the rectangle lantern ring, its coaxial sleeve is in the outside of guide rail upright columns 7-2, four sliding block 7-1
A madial wall with sliding block fixed seat 6 is connected respectively.The height value of guide rail upright columns 7-2 is 250mm.
The center of sliding block 7-1 is equipped with screw hole, and four sliding block 7-1 are fixed on corresponding one by a sliding block positioning screw
In bar sliding slot, the height of four sliding block 7-1 is identical.The height of four sliding block 7-1 determines sliding block fixed seat 6 once fixing
With four treadle supporting seats 5 and the elemental height value of footrest mechanism.And the structure setting of four guide rail upright columns 7-2 so that
The city rail vehicle liftable driver of the present invention rides can be foot-operated by the slide pillar mechanism 7 arbitrarily setting according to the actual requirements
The elemental height of trigger structure, the buying client to railcar provide more selection spaces.
Resetting push-button mechanism 2 includes button 2-1, sleeve 2-2, reseting pressuring spring 2-3, sleeve bottom end cover 2-4, nylon back plate 2-
5 and bottom end cover lock-screw 2-6, button 2-1, reseting pressuring spring 2-3, sleeve bottom end cover 2-4 and nylon back plate 2-5 it is coaxial nested
In the inside of sleeve 2-2.The center of nylon back plate 2-5 and bottom end cover lock-screw 2-6 are equipped with piston rod through-hole, air spring
4 piston rod upper end is equipped with external thread section, inside its two piston rod through-hole passed through insertion resetting push-button mechanism 2, and passes through
Piston rod fastening bolt is locked in the upper surface of nylon back plate 2-5.The upper end of reseting pressuring spring 2-3 is inserted into button 2-1's
Inside, its lower end by nylon back plate 2-5 supports and coaxial sleeve air spring 4 external thread section and piston rod fastening bolt
It is exterior.The lower end of nylon back plate 2-5 supports is supported by sleeve bottom end cover 2-4.Sleeve bottom end cover 2-4 is coaxially blocked in sleeve 2-2
Lower ending opening at, side wall is equipped with sleeve lateral wall through hole at the lower ending opening of sleeve 2-2, and bottom end cover lock-screw 2-6 is passed through
Sleeve lateral wall through hole simultaneously fixes sleeve bottom end cover 2-4.
The inside of air spring 4 has stroke self-locking mechanism, when its piston rod is entirely retracted under axial pressure effect
During the inside of piston cylinder, the self-locking mechanism of its piston thick stick bottom can be by its piston rod locking, but when piston rod is further subject to
During axial compression, its self-locking mechanism again can discharge piston rod, and piston rod is slowly stretched out out of piston cylinder, live herein
During stopper rod slowly stretches out, optional position in its stroke this extrusion piston bar vertically again, then piston rod will work as
The self-locking again of preceding height and position.The air spring 4 of the present invention is using 729582 type gas springs of NICETY factories production, its stroke
Adjustable range is 120mm.
The anti-guard housing 3 of button is metal plate groove structure, its metal plate slot opening is downward, in the two side walls of its metal plate groove
Equipped with horizontal bending flange 3-2, the anti-guard housing 3 of button is fixed on the upper surface center line of pedal 1 by its bending flange.Button
Protection block hole 3-1 is opened on the center line of metal plate groove floor.The anti-guard housing 3 of the button is used to move down the limit to button 2-1
Carry out position limitation protection, with prevent reseting pressuring spring 2-3 inside resetting push-button mechanism 2, sleeve bottom end cover 2-4, nylon back plate 2-5 with
And the structure such as air spring 4 excessively moving down and be destroyed because of button 2-1.
When the city rail vehicle liftable driver of the concrete application present invention is foot-operated, button 2-1 is firmly trampled, makes air spring 4
Piston rod pressure-bearing and overcome the default value of elastic of air spring 4, you can the piston rod of air spring 4 is compressed and is retracted completely
To 4 piston thick stick of air spring, and self-locking.At this time, city rail vehicle liftable driver of the invention rides near extreme lower position.
When need to raise driver it is foot-operated when, firmly trample button 2-1 again, and when make the piston rod of air spring 4 this triggering piston again
The self-locking mechanism of thick stick bottom, so that self-locking mechanism this can discharge piston rod again, and makes piston rod slow out of piston cylinder
Stretch out, and can realize the positioning to arbitrary height in the range of piston rod stroke by trampling button 2-1 again.
Button 2-1 is arranged on the center of footrest mechanism, and pedal 1 still leaves enough in the both sides of the anti-guard housing 3 of button
Width surplus, so as to remaining space when driver's normal operating is foot-operated in pushes pedals 1, avoid stepping on by mistake to button 2-1 by mistake
Operation.
By taking the subway train drivers' cab of Hong Kong sand center line project as an example, the streamlined protrusion of headstock of the metro project, is
The good visual angle of holding, the driver's cabin driving position and driver's chair of the subway train are highly respectively provided with higher, drivers' cab seat
In normal driving, cushion highly reaches 780mm, and seat lift adjustment scope is 102mm.But the adjustable range of seat lifting
It can not still meet that height is less than 1.70 meters of the corresponding operated by foot mechanism normal operating distance of driver.
Using the present invention city rail vehicle liftable driver ride after, the driver ride between drivers' cab Chain cushion can
Adjusting height increases to enough height, therefore can ensure that any driver driving person of the height ranges in 1.55 to 1.9 meters is equal
Comfortable reliable suitable operated by foot distance can be obtained.
Claims (6)
1. city rail vehicle liftable driver rides, it is characterised in that：The driver is ridden including pedal (1), resetting push-button mechanism
(2), the anti-guard housing of button (3), air spring (4), multiple treadle supporting seats (5), sliding block fixed seat (6), slide pillar mechanism (7)
With base (8)；The end face of pedal (1) is equipped with button pass through hole (1-1)；The lower end of slide pillar mechanism (7) is vertically fixed on bottom
The center of seat (8), sliding block fixed seat (6) is sleeved on the upper end of slide pillar mechanism (7), is connected both it；The lower end of pedal (1) leads to
Multiple treadle supporting seats (5) are crossed to be connected with sliding block fixed seat (6)；The lower end insertion slide pillar mechanism (7) of air spring (4)
Inside, is connected both it；The upper end of air spring (4) is inserted into and is fixed on the inside of resetting push-button mechanism (2)；The anti-guard housing of button
(3) upper surface of pedal (1) is fixed on, the upper surface of the anti-guard housing of button (3) is equipped with button protection block hole (3-1), and reset is pressed
The upper end of button mechanism (2) is sequentially through button protection block hole (3-1) and button pass through hole (1-1), and be exposed to the anti-guard housing of button
(3) outside of upper surface；
The pedal (1), resetting push-button mechanism (2) and the anti-guard housing of button (3) collectively form a footrest mechanism, air spring
(4), multiple treadle supporting seats (5), sliding block fixed seat (6), slide pillar mechanism (7) and base (8) collectively form a lifting
Platform mechanism.
2. city rail vehicle liftable driver as claimed in claim 1 rides, it is characterised in that：The slide pillar mechanism (7)
Including guide rail upright columns (7-2) and four sliding blocks (7-1), guide rail upright columns (7-2) are hollow quadrangular tubular structure, its four perpendicular
Straight lateral wall is respectively equipped with a sliding slot, and sliding slot corresponding with one is matched and slided described four sliding blocks (7-1) respectively
Connection；The sliding block fixed seat (6) is the rectangle lantern ring, its coaxial sleeve is in the outside of guide rail upright columns (7-2), four sliding block (7-
1) madial wall respectively with sliding block fixed seat (6) is connected.
3. city rail vehicle liftable driver as claimed in claim 2 rides, it is characterised in that：The center of the sliding block (7-1)
Equipped with screw hole, four sliding blocks (7-1) are fixed in a corresponding sliding slot by a sliding block positioning screw, four cunnings
The height of block (7-1) is identical.
4. city rail vehicle liftable driver as claimed in claim 1 rides, it is characterised in that：The resetting push-button mechanism (2)
Including button (2-1), sleeve (2-2), reseting pressuring spring (2-3), sleeve bottom end cover (2-4), nylon back plate (2-5) and lower end cover lock
Tight screw (2-6), the button (2-1), reseting pressuring spring (2-3), sleeve bottom end cover (2-4) and nylon back plate (2-5) are coaxial
It is nested in the inside of sleeve (2-2)；The center of the nylon back plate (2-5) and bottom end cover lock-screw (2-6) is equipped with piston
Rod through-hole, the piston rod upper end of air spring (4) are equipped with external thread section, it is inserted into by two piston rod through-holes resets
Button mechanism (2) is internal, and is locked by piston rod fastening bolt in the upper surface of nylon back plate (2-5)；Reseting pressuring spring
The upper end of (2-3) is inserted into the inside of button (2-1), its lower end is by nylon back plate (2-5) support and coaxial sleeve is in air spring
(4) external thread section and the outside of piston rod fastening bolt；The lower end of nylon back plate (2-5) support is by sleeve bottom end cover (2-
4) support；Sleeve bottom end cover (2-4) is coaxially blocked at the lower ending opening of sleeve (2-2), side at the lower ending opening of sleeve (2-2)
Wall is equipped with sleeve lateral wall through hole, and bottom end cover lock-screw (2-6) is through sleeve lateral wall through hole and solid by sleeve bottom end cover (2-4)
It is fixed.
5. city rail vehicle liftable driver as claimed in claim 1 rides, it is characterised in that：The air spring (4) it is interior
Portion has stroke self-locking mechanism.
6. city rail vehicle liftable driver as claimed in claim 1 rides, it is characterised in that：The anti-guard housing of button (3) is
Metal plate groove structure, its metal plate slot opening is downward, and horizontal bending flange (3- is equipped with the two side walls of its metal plate groove
2), the anti-guard housing of button (3) is fixed on by its bending flange on the upper surface center line of pedal (1)；Button protection block hole (3-1)
It is opened on the center line of metal plate groove floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711119281.2A CN107933584B (en) | 2017-11-14 | 2017-11-14 | City rail vehicle liftable driver is foot-operated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711119281.2A CN107933584B (en) | 2017-11-14 | 2017-11-14 | City rail vehicle liftable driver is foot-operated |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107933584A true CN107933584A (en) | 2018-04-20 |
| CN107933584B CN107933584B (en) | 2019-06-11 |
Family
ID=61935003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711119281.2A Active CN107933584B (en) | 2017-11-14 | 2017-11-14 | City rail vehicle liftable driver is foot-operated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107933584B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108652316A (en) * | 2018-06-30 | 2018-10-16 | 浙江欧莱克琴业有限公司 | A kind of pianotron frame feet |
| CN108791329A (en) * | 2018-08-06 | 2018-11-13 | 株洲联诚集团控股股份有限公司 | A kind of locomotive cab adjustable up-down is foot-operated |
| CN109278779A (en) * | 2018-11-30 | 2019-01-29 | 中车青岛四方车辆研究所有限公司 | Pedal lifting regulating device |
| WO2019214956A1 (en) * | 2018-05-07 | 2019-11-14 | Siemens Mobility GmbH | Modular foot platform for a driver's cab of a rail vehicle |
| CN111620153A (en) * | 2020-05-21 | 2020-09-04 | 天津市鑫鹏达新能源科技有限公司 | Steel strip receiving machine with automatic guiding device |
| WO2021227172A1 (en) * | 2020-05-13 | 2021-11-18 | 中车唐山机车车辆有限公司 | Footrest device for rail train, and rail train |
| WO2021227398A1 (en) * | 2020-05-13 | 2021-11-18 | 中车唐山机车车辆有限公司 | Linear-to-rotary motion transmission mechanism, pedal apparatus, and rail train |
| WO2021227400A1 (en) * | 2020-05-13 | 2021-11-18 | 中车唐山机车车辆有限公司 | Button assembly for pedal apparatus, pedal apparatus, and rail train |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112088118A (en) * | 2018-05-07 | 2020-12-15 | 西门子交通有限公司 | Modular foot pedal for a driver's cab of a rail vehicle |
| CN112088118B (en) * | 2018-05-07 | 2023-03-31 | 西门子交通有限公司 | Modular foot pedal for a driver's cab of a rail vehicle |
| WO2019214956A1 (en) * | 2018-05-07 | 2019-11-14 | Siemens Mobility GmbH | Modular foot platform for a driver's cab of a rail vehicle |
| CN108652316A (en) * | 2018-06-30 | 2018-10-16 | 浙江欧莱克琴业有限公司 | A kind of pianotron frame feet |
| CN108791329A (en) * | 2018-08-06 | 2018-11-13 | 株洲联诚集团控股股份有限公司 | A kind of locomotive cab adjustable up-down is foot-operated |
| CN109278779B (en) * | 2018-11-30 | 2019-11-05 | 中车青岛四方车辆研究所有限公司 | Pedal lifting regulating device |
| CN109278779A (en) * | 2018-11-30 | 2019-01-29 | 中车青岛四方车辆研究所有限公司 | Pedal lifting regulating device |
| WO2021227172A1 (en) * | 2020-05-13 | 2021-11-18 | 中车唐山机车车辆有限公司 | Footrest device for rail train, and rail train |
| WO2021227398A1 (en) * | 2020-05-13 | 2021-11-18 | 中车唐山机车车辆有限公司 | Linear-to-rotary motion transmission mechanism, pedal apparatus, and rail train |
| WO2021227400A1 (en) * | 2020-05-13 | 2021-11-18 | 中车唐山机车车辆有限公司 | Button assembly for pedal apparatus, pedal apparatus, and rail train |
| CN113665599A (en) * | 2020-05-13 | 2021-11-19 | 中车唐山机车车辆有限公司 | Pedal device for rail train and rail train |
| CN113665598A (en) * | 2020-05-13 | 2021-11-19 | 中车唐山机车车辆有限公司 | Button assembly for pedal device, pedal device and rail train |
| CN111620153A (en) * | 2020-05-21 | 2020-09-04 | 天津市鑫鹏达新能源科技有限公司 | Steel strip receiving machine with automatic guiding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107933584B (en) | 2019-06-11 |
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