CN109435990A - A kind of retractable step - Google Patents
A kind of retractable step Download PDFInfo
- Publication number
- CN109435990A CN109435990A CN201811566816.5A CN201811566816A CN109435990A CN 109435990 A CN109435990 A CN 109435990A CN 201811566816 A CN201811566816 A CN 201811566816A CN 109435990 A CN109435990 A CN 109435990A
- Authority
- CN
- China
- Prior art keywords
- sprocket wheel
- pedal
- wheel chain
- holdback
- clutch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000009467 reduction Effects 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D23/00—Construction of steps for railway vehicles
- B61D23/02—Folding steps for railway vehicles, e.g. hand or mechanically actuated
- B61D23/025—Folding steps for railway vehicles, e.g. hand or mechanically actuated electrically or fluid actuated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
Abstract
The invention discloses a kind of retractable steps, i.e., being reliably fixed for pedal is realized by a Bidirectional non-return device, compact-sized, and maintenance is simple, while alternative pedal locking mechanism, simplify structure；Carry out that transmission maintenance is simple, and one group of sprocket wheel chain by long axis connection is respectively arranged in high reliablity, the two sides of pedal assembly using sprocket wheel chain mechanism, it is ensured that pedal two sides synchronize extended or retracted, avoid clamping stagnation；Pass through a clutch, it is ensured that in abnormal cases, manual operation pedal can be converted to, while can be locked at any time in operation and after end of operation, ensure that the normal operation of train.
Description
Technical field
The present invention relates to a kind of retractable steps for rail traffic pedal field.
Background technique
To match different platforms, rail vehicle entrance can configure a pedal, use for passenger getting on/off.For stretching
Contracting formula retractable step device, needs to guarantee that pedal assembly is reliably fixed, safety when ensuring that passenger stands or walks.
Currently marketed product, usually using electrically or mechanical system realizes the fixation of pedal.For electrical
Mode, it is difficult to guarantee that pedal electric can must effectively locked with two kinds of situations of power loss, there is the risk damaged to passenger.
For mechanical system, usually realized using the structure of worm and gear locked, but this mode transmission efficiency is low, structure is complicated and
Maintenance is inconvenient, is fixed using any position that other mechanical structures are then difficult to realize pedal, and structure is complicated, reliability is low.
Summary of the invention
The purpose of the invention is to overcome the deficiencies of the prior art and provide a kind of retractable step, pedal is using electrical side
Formula driving, and may be implemented under power blackout situation for the operation of pedal and locking.
Realizing a kind of technical solution of above-mentioned purpose is: a kind of retractable step, including motor and pedal assembly, further include subtracting
Fast case, holdback, clutch and sprocket wheel chain；
The motor is connect with the reduction gearbox, and the reduction gearbox is connect with the input terminal of the holdback, the check
The output end of device is connect with the clutch, and the clutch is connect by gear with the sprocket wheel chain, the pedal assembly
It is connect with the sprocket wheel chain；The motor, the reduction gearbox, the holdback, the clutch and the gear, which are constituted, to be passed
Motivation structure；
When input terminal of the power in the holdback for inputting the holdback, the output end of holdback can be driven to export and turned
Dynamic power；When output end of the power in the holdback for inputting the holdback, the holdback is locked, and both ends all can not
Rotation.
Further, the sprocket wheel chain includes the first sprocket wheel chain and the second sprocket wheel chain, and the clutch passes through tooth
Wheel is connect with first sprocket wheel chain, and first sprocket wheel chain is connect by a root long axis with second sprocket wheel chain.
Further, the pedal assembly includes pedal tread and the pedal connector that pedal tread two sides are arranged in, described
Pedal assembly is connect with first sprocket wheel chain and second sprocket wheel chain respectively by the pedal connector.
A kind of retractable step of the invention realizes being reliably fixed for pedal by a Bidirectional non-return device, structure is tight
It gathers, maintenance is simple, while alternative pedal locking mechanism, simplifies structure；Transmission maintenance letter is carried out using sprocket wheel chain mechanism
Single, one group of sprocket wheel chain by long axis connection is respectively arranged in high reliablity, the two sides of pedal assembly, it is ensured that pedal two sides, which synchronize, stretches
It out or is retracted, avoids clamping stagnation；Pass through a clutch, it is ensured that in abnormal cases, manual operation pedal can be converted to, together
When can in operation and end of operation after be locked at any time, ensure that the normal operation of train.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of retractable step of the invention；
Fig. 2 is a kind of structural schematic diagram of the transmission mechanism of retractable step of the invention under clutch engaged state；
Fig. 3 is a kind of structural schematic diagram of the transmission mechanism of retractable step of the invention under throw-out-of clutch state；
Fig. 4 is that a kind of transmission mechanism of retractable step of the invention is shown by the structure that gear is connect with the first sprocket wheel chain
It is intended to.
Specific embodiment
In order to preferably understand technical solution of the present invention, below by specifically embodiment and in conjunction with attached drawing
It is described in detail:
Referring to Fig. 1, a kind of retractable step of the invention, including motor 1 and pedal assembly 2, it further include reduction gearbox 3, inverse
Only device 4, clutch 5 and sprocket wheel chain.Wherein, sprocket wheel chain includes the first sprocket wheel chain 61 and the second sprocket wheel chain 62.
Motor 1 is connect with reduction gearbox 3, and reduction gearbox 3 is connect with the input terminal of holdback 4, the output end of holdback 4 and clutch
Device 5 connects, and clutch 5 is connect by gear 7 with the first sprocket wheel chain 61, and the first sprocket wheel chain 61 passes through a root long axis and second
Sprocket wheel chain 62 connects.Motor 1, reduction gearbox 3, holdback 4, clutch 5 and gear 7 constitute transmission mechanism.
When input terminal of the power in holdback 4 for inputting holdback 4, the output end of holdback 4 can be driven to export rotation dynamic
Power；When the power of input holdback 4 is in the output end of holdback 4, holdback 4 is locked, and both ends can not all rotate.Work as clutch
5 when being in the position of engagement, and holdback 4 and gear 7 are in connection status.Motor power normally can be transferred to gear 7, due to inverse
The only effect of device 4, gear can not be freely rotated；When clutch 5 is in disengaged condition, holdback 4 and gear 7 are in and disconnect shape
State can not transmit power, but gear 7 is free to rotate, so that manual operation becomes possibility.
Pedal assembly 2 includes pedal tread 21 and the pedal connector 22 that pedal tread two sides are arranged in, and pedal assembly 2 is by stepping on
Plate connector 22 is connect with the first sprocket wheel chain 61 and the second sprocket wheel chain 62 respectively.Pass through the first sprocket wheel chain of long axis connection
61 can ensure that 22 two sides of pedal connector are synchronous extended or retracted with the second sprocket wheel chain 62, avoid the clamping stagnation of pedal assembly 2.
The working principle of retractable step of the invention is as follows.
In normal state, clutch 5 is in the position of engagement.
When pedal obtains turning on or off instruction, motor 1 is by 3 output power of reduction gearbox, and holdback 4 plays at this time
The effect of shaft coupling is transmitted to the first sprocket wheel chain 61 and drives the second sprocket wheel chain by power by clutch 5 and gear 7
62 rotate synchronously, and then driving pedal component 2 is opened or closed to designated position.
After motor 1 stops operating, no matter pedal assembly 2 be in where, when clutch 5 is in meshing state, tooth
Wheel 7 is connect with holdback 4, and gear 7 can not be rotated actively.Therefore pedal assembly 2 can not be pushed mobile, i.e., pedal is by reliable locked solid
It is fixed, and then guarantee the safety of passenger.
Once the electrical system or signal system of pedal break down, or meet with other problems, can staff grasp manually
Make clutch 5 and realizes disengagement.
After clutch 5 is in disengaged condition, gear 7 and holdback 4 are cut off at this time, can freely push pedal assembly 2 manually
It is mobile, to realize the manual operation of pedal.
After the manual operation of pedal, then restore clutch 5 manually, so that clutch 5 is restored to meshing state, again
Gear 7 is connect with holdback 4, pedal assembly 2 is locked again at this time, can not be moved manually.
A kind of retractable step of the invention uses holdback as locking device, it is ensured that pedal can at an arbitrary position
It is enough reliably fixed, while the holdback simplifies structure also instead of pedal locking device；Guarantee that pedal exists using clutch
Meet with manual operation when failure；One group of sprocket chain device, which is respectively arranged, in two sides can realize the reliable mobile of pedal.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as the change in spirit of the invention, to embodiment described above
Change, modification will all be fallen within the scope of claims of the present invention.
Claims (3)
1. a kind of retractable step, including motor and pedal assembly, which is characterized in that further include reduction gearbox, holdback, clutch and
Sprocket wheel chain；
The motor is connect with the reduction gearbox, and the reduction gearbox is connect with the input terminal of the holdback, the holdback
Output end is connect with the clutch, and the clutch is connect by gear with the sprocket wheel chain, the pedal assembly and institute
State sprocket wheel chain connection；The motor, the reduction gearbox, the holdback, the clutch and the gear constitute driver
Structure；
When input terminal of the power in the holdback for inputting the holdback, the output end of holdback can be driven to export rotation dynamic
Power；When output end of the power in the holdback for inputting the holdback, the holdback is locked, and both ends can not all turn
It is dynamic.
2. a kind of retractable step according to claim 1, which is characterized in that the sprocket wheel chain includes the first sprocket wheel chain
With the second sprocket wheel chain, the clutch is connect by gear with first sprocket wheel chain, and first sprocket wheel chain passes through
One root long axis is connect with second sprocket wheel chain.
3. a kind of retractable step according to claim 2, which is characterized in that the pedal assembly includes pedal tread and setting
Pedal connector in pedal tread two sides, the pedal assembly by the pedal connector respectively with first sprocket wheel chain
It is connected with second sprocket wheel chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811566816.5A CN109435990A (en) | 2018-12-19 | 2018-12-19 | A kind of retractable step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811566816.5A CN109435990A (en) | 2018-12-19 | 2018-12-19 | A kind of retractable step |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109435990A true CN109435990A (en) | 2019-03-08 |
Family
ID=65558620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811566816.5A Pending CN109435990A (en) | 2018-12-19 | 2018-12-19 | A kind of retractable step |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109435990A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115848273A (en) * | 2023-01-10 | 2023-03-28 | 浙江吉利控股集团有限公司 | Telescopic stepping device and automobile |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000021121A (en) * | 1998-09-25 | 2000-04-15 | 박진양 | Auxiliary foothold system for electric railway platform |
| CN201261430Y (en) * | 2008-09-03 | 2009-06-24 | 吴磊磊 | Electric telescopic step for automobile |
| US20090184487A1 (en) * | 2007-01-18 | 2009-07-23 | Werner Kircher | Boarding and/or access aid for passenger vehicles |
| CN104898766A (en) * | 2015-06-16 | 2015-09-09 | 中国北方车辆研究所 | Manual remotely-controlled driving device |
| CN104925068A (en) * | 2015-07-01 | 2015-09-23 | 上海嘉成轨道交通安全保障系统股份公司 | Safety pedal of rail traffic platform |
| CN105110146A (en) * | 2015-09-09 | 2015-12-02 | 安徽省葛根生产力促进中心有限公司 | Device lifting device used for large-scale building site construction |
| KR101608081B1 (en) * | 2015-10-12 | 2016-04-11 | 허재원 | secondary sliding foothold based on chain operating for vehicle with enhanced warping resistence |
| CN106428068A (en) * | 2016-11-14 | 2017-02-22 | 南京康尼机电股份有限公司 | Sliding pedal device for rail transit train |
| CN108657078A (en) * | 2018-08-20 | 2018-10-16 | 攀枝花市九鼎智远知识产权运营有限公司 | Ladder is pedaled in a kind of folding of dumper |
| CN209336733U (en) * | 2018-12-19 | 2019-09-03 | 法中轨道交通运输设备(上海)有限公司 | A kind of retractable step |
-
2018
- 2018-12-19 CN CN201811566816.5A patent/CN109435990A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000021121A (en) * | 1998-09-25 | 2000-04-15 | 박진양 | Auxiliary foothold system for electric railway platform |
| US20090184487A1 (en) * | 2007-01-18 | 2009-07-23 | Werner Kircher | Boarding and/or access aid for passenger vehicles |
| CN201261430Y (en) * | 2008-09-03 | 2009-06-24 | 吴磊磊 | Electric telescopic step for automobile |
| CN104898766A (en) * | 2015-06-16 | 2015-09-09 | 中国北方车辆研究所 | Manual remotely-controlled driving device |
| CN104925068A (en) * | 2015-07-01 | 2015-09-23 | 上海嘉成轨道交通安全保障系统股份公司 | Safety pedal of rail traffic platform |
| CN105110146A (en) * | 2015-09-09 | 2015-12-02 | 安徽省葛根生产力促进中心有限公司 | Device lifting device used for large-scale building site construction |
| KR101608081B1 (en) * | 2015-10-12 | 2016-04-11 | 허재원 | secondary sliding foothold based on chain operating for vehicle with enhanced warping resistence |
| CN106428068A (en) * | 2016-11-14 | 2017-02-22 | 南京康尼机电股份有限公司 | Sliding pedal device for rail transit train |
| CN108657078A (en) * | 2018-08-20 | 2018-10-16 | 攀枝花市九鼎智远知识产权运营有限公司 | Ladder is pedaled in a kind of folding of dumper |
| CN209336733U (en) * | 2018-12-19 | 2019-09-03 | 法中轨道交通运输设备(上海)有限公司 | A kind of retractable step |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115848273A (en) * | 2023-01-10 | 2023-03-28 | 浙江吉利控股集团有限公司 | Telescopic stepping device and automobile |
| CN115848273B (en) * | 2023-01-10 | 2025-07-29 | 浙江吉利控股集团有限公司 | Telescopic stepping device and automobile |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190308 |
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| WD01 | Invention patent application deemed withdrawn after publication |