CN113291336B - Telescopic pedal of railway vehicle - Google Patents
Telescopic pedal of railway vehicle Download PDFInfo
- Publication number
- CN113291336B CN113291336B CN202110545961.0A CN202110545961A CN113291336B CN 113291336 B CN113291336 B CN 113291336B CN 202110545961 A CN202110545961 A CN 202110545961A CN 113291336 B CN113291336 B CN 113291336B
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- plate
- spring
- box body
- elastic support
- connecting plate
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- 238000009434 installation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000004576 sand Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D23/00—Construction of steps for railway vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Passenger Equipment (AREA)
- Vehicle Step Arrangements And Article Storage (AREA)
Abstract
The invention discloses a telescopic pedal of a rail vehicle, which comprises: the elastic support box body is positioned on two sides of the step assembly; the step assembly comprises a vertical plate and at least two step plates which are arranged at intervals in the vertical direction, and a connecting plate is arranged on the outer side of the vertical plate; the elastic supporting box body comprises a bottom plate, a front baffle, a rear baffle, an outer side plate and a top plate which are fixedly connected with each other; the connecting plate is located the cavity of elastic support box body, and is provided with the spring that vertical direction extends in the elastic support box body, and the one end fixed connection of spring is in bottom plate or roof, and the other end is connected in or butt in the connecting plate. The telescopic pedal is simple and light in structure, can be connected to a vehicle body through bolts, is convenient to mount, uses welding parts and standard parts, and is simple to manufacture, stable, reliable and long in service life. The spring installation space is shielded by the baffle, and the spring can be prevented from being corroded by sand and other substances. The size of the pedal is convenient to replace according to actual needs.
Description
Technical Field
The invention relates to a telescopic pedal of a railway vehicle, and belongs to the technical field of auxiliary parts of railway vehicles.
Background
In current rail vehicle designs, maintenance personnel or drivers must step on and off the vehicle via boarding steps mounted below the undercarriage side rails. The existing structure of the bicycle pedal is basically fixed, namely a pedal mounting plate is designed below a side beam of an underframe, a pedal is mounted on the pedal mounting plate in a fixed connection mode, and the height of the pedal is not variable. The foot height of such a construction is typically 500mm above the rail surface, subject to the constraints. When a person gets on the vehicle, the human body supporting surface moves from the sole to the pedal, and the center of gravity gradually deviates from the supporting surface. If the first step height is higher, the personnel must expend more strength and get on the car more difficult. Considering that the use environment of locomotives, especially rail engineering vehicles is mostly outdoor, and a platform is lacked, personnel must stand on the ground or on sleepers, and the boarding height is increased. The fixed pedal structure is inconvenient for people to get on or off the bicycle, easily causes injury to the people and seriously affects the comfort and the safety.
The existing mechanical structure type pedals are rare and have some problems. The torsion spring type pedal disclosed in the utility model CN201620805680.9 only has single-layer steps, has larger span, lacks protection on the structure, is easy to be eroded by silt and dust, and is easy to lose efficacy; and the single-layer steps cannot be simply replaced. The motor type pedal and the electric type pedal have larger structural space, need wiring and pipe arrangement, are easy to interfere with equipment such as a bogie and the like, have complex structure, low reliability and weaker shock resistance, and are not suitable for wide use.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides a telescopic pedal of a railway vehicle, and the specific technical scheme is as follows.
A retractable footrest for a railway vehicle, comprising: the elastic support box body is positioned on two sides of the step assembly;
the step assembly comprises a vertical plate and at least two step plates which are arranged at intervals in the vertical direction, two ends of each step plate are respectively and fixedly connected with the vertical plate, a connecting plate is arranged on the outer side of the vertical plate, and the connecting plate and the step plates are both horizontally arranged;
the elastic support box body comprises a bottom plate, a front baffle, a rear baffle, an outer side plate and a top plate which are fixedly connected with each other; the connecting plate is located in the cavity of the elastic support box body, a spring extending in the vertical direction is arranged in the elastic support box body, one end of the spring is fixedly connected to the bottom plate or the top plate, and the other end of the spring is abutted against or connected to the connecting plate.
By adopting the technical scheme, the whole spring is limited in the cavity formed by the elastic support box body and the vertical plate, so that the spring is prevented from being eroded by dust and silt, and the weather resistance is favorably improved; the step assembly contains a plurality of step boards, and the user of service can select suitable step board according to actual terrain clearance, and when the user of service stepped on the step board, the step board overcome the elasticity downstream of spring to extreme position to realized the altitude mixture control of step board, be favorable to user of service to get on or off rail vehicle. When the step plate is not used, the step plate returns to the highest position under the action of the spring, so that the requirement of vehicle clearance is met, and no personnel is needed to operate.
Furthermore, a guide rod for guiding the spring is further arranged in the elastic support box, and a through hole for the guide rod to pass through is formed in the connecting plate. When the step assembly moves up and down, the guide rod guides the step assembly to prevent the step assembly from turning on one side. Preferably, the guide rods and the springs are provided in one-to-one correspondence with two or more.
Furthermore, a limiting block is further arranged in the elastic support box body, and the limiting block is fixedly connected with the bottom plate and used for limiting the limit position of the connecting plate moving downwards.
Further, the outer wall of the outer side plate is fixedly provided with a mounting plate, the mounting plate is horizontally arranged, and the mounting plate is provided with a connecting hole. Preferably, the connecting hole is a waist-shaped hole.
Further, the top plate is detachably connected with the mounting plate through a fastener. The advantage that sets up like this lies in can installing the connecting plate of step assembly in the elastic support box body after, is connected roof and mounting panel again, is favorable to changing different specification step assemblies to the needs that adapt to different use scenes.
The telescopic pedal is simple and light in structure, can be connected to a vehicle body through bolts, is convenient to mount, uses welding parts and standard parts, and is simple to manufacture, stable, reliable and long in service life. The spring installation space is shielded by the baffle, and the spring can be prevented from being corroded by sand and other substances. The size of the pedal is convenient to replace according to actual needs. When people get on or off the vehicle, the boarding height is effectively reduced, the comfort level is improved, and after the people get on or off the vehicle, the retractable pedal can automatically recover to the initial state, so that the requirement of the limit of the vehicle is met, and the operation of the people is not needed. The problem of large span can be solved to the multilayer step, and the spring restoring force can the helping hand personnel conveniently step on the car.
Drawings
FIG. 1 is a perspective view of a retractable footrest according to the present invention;
FIG. 2 is a front view of FIG. 1, also mounted to a vehicle body;
FIG. 3 is a perspective view of the flexible support cartridge;
FIG. 4 is a front view of the step combination;
FIG. 5 is a top view of a step combination;
fig. 6 is a schematic view showing an active state of the retractable foothold (with parts hidden).
In the figure: step assembly 1, connecting plate 1.1, go up step 1.2, riser 1.3, lower step 1.4, elastic support box body 2, preceding baffle 2.1, backplate 2.2, lateral plate 2.3, mounting panel 2.4, bottom plate 2.5, stopper 2.6, roof 2.7, spring 3, guide bar 4, through-hole 5, connecting hole 6.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
Referring to fig. 1 to 6, the retractable pedal for a railway vehicle provided by the invention comprises a step assembly 1 and elastic support boxes 2 positioned at two sides of the step assembly 1;
wherein, the elastic support box body 2 comprises a front baffle 2.1, a rear baffle 2.2, an outer side plate 2.3, a mounting plate 2.4, a bottom plate 2.5 and a limiting block 2.6.
For convenience of explanation, the following directions are specified: FIG. 2 shows the length direction as the horizontal line, and the dimension in this direction is called the length; fig. 2 shows a vertical direction (vertical direction) as a vertical dotted line direction, and the dimension in this direction is called height; the direction perpendicular to the sheet of fig. 2 is the width direction (i.e., the third direction in the right-hand orthogonal coordinate system), and the dimension in this direction is referred to as the width. In fig. 2, a vertical dotted line is a symmetrical center line of the retractable pedal, and the line close to the center line in the length direction is called as the inner side, and the line far from the center line is called as the outer side.
The two elastic supporting box bodies 2 are symmetrically arranged at the outer side of the step assembly 1 and are connected and supported. The elastic supporting box body 2 comprises a bottom plate 2.5, a front baffle 2.1, a rear baffle 2.2, an outer side plate 2.3 and a top plate 2.7 which are fixedly connected with each other; the upper surface of the bottom plate 2.5 is provided with a groove or a lug boss for fixing the spring 3, the outer side is connected with an outer side plate 2.3, the outer side above the outer side plate 2.3 is connected with a mounting plate 2.4, and the bottom plate 2.5, the outer side plate 2.3 and the mounting plate 2.4 form a zigzag structure as a force-bearing and force-transmitting component. In order to strengthen the strength of the zigzag structure and shield and protect the internal space and restrain the motion space of the step assembly 1, a front baffle 2.1 and a rear baffle 2.2 are arranged in the width direction. The mounting plate 2.4 is horizontally arranged, and a connecting hole 6 is formed in the mounting plate 2.4; preferably, the attachment holes 6 are kidney-shaped holes. The top plate 2.7 is detachably connected with the mounting plate 2.4 by fasteners.
The step assembly 1 is a frame structure, and the upper step plate 1.2 is fixedly connected with the lower step plate 1.4 through a vertical plate 1.3. The upper step plate and the lower step plate can be used for treading after anti-skid treatment. The part of the upper step plate 1.2 extending beyond the lower step plate 1.4 is a connecting plate 1.1, but the connecting plate 1.1 may also be a plate member separately welded and fixed on the outer side of the vertical plate 1.3, and the connecting plate 1.1 is used for abutting against the spring 3. The step assembly 1 in this embodiment only includes two step plates, and those skilled in the art can understand that: the number of the step plates larger than 2 may be provided as required. The interval of two risers 1.3 is less than the distance of two elastic support box bodies 2, and the width of connecting plate 1.1 is less than the distance between preceding baffle 2.1 and the backplate 2.2 to guarantee that step assembly 1 can move on the vertical direction smoothly.
The upper end of the spring 3 supports the step assembly 1, and the lower end is fixed on the bottom plate 2.5 of the elastic support box body 2. When the step assembly 1 applies pressure, the spring 3 is compressed, the height of the upper end is reduced, and the effect of up-and-down movement of the step assembly 1 is achieved.
For protection spring 3 and the biggest stroke of control, set up stopper 2.6 in elastic support box body 2, the spring is avoided to the size of stopper. When the step assembly 1 moves downwards, the limiting block 2.6 contacts the connecting plate 1.1 to limit the movement of the step assembly 1 and achieve the maximum downward stroke.
In order to prevent the spring 3 from being unstable, a guide rod 4 may be disposed on the bottom plate 2.5, the spring 3 is disposed on the guide rod 4, and a sliding sleeve or a bearing (not shown, although the sliding sleeve or the bearing may be omitted) is disposed between the upper portion of the spring 3 and the connecting plate 1.1. The connecting plate 1.1 is provided with a through hole 5 for the guide rod 4 to pass through.
In order to reduce the vertical vibration influence of the spring 3 in the running process of the vehicle, the spring 3 in the initial state is set to be in a compressed state, the connecting plate 1.1 is abutted to the contact top plate 2.7, and the initial compression force is recommended to be 1 to 3 times of the weight of the step combination body.
The installation mode is as follows: the elastic support box body 2 is arranged on the vehicle body (through the mounting plate 2.4), and the mounting plate 2.4 is provided with a waist-shaped hole in the length direction, so that the position of the elastic support box body 2 can be properly adjusted. The spring 3 is arranged on a guide rod 4 of the elastic support box body 2, and the upper end is provided with a sliding sleeve. The connecting plate 1.1 of the step assembly 1 is arranged in the space of the elastic support box body 2, and the guide rod 4 penetrates through the connecting plate 1.1 to adjust the distance between the two elastic support box bodies 2. The top plate 2.7 is installed after the initial stress is applied to the step assembly 1. When the step assembly 1 needs to be replaced, only the top plate 2.7 needs to be removed and a new step assembly 1 needs to be installed.
It should be noted that: the compression spring adopted in the above embodiment can actually use an extension spring, and the upper end of the extension spring is fixed with the top plate 2.7, and the lower end is connected with the connecting plate 1.1, so that the same effect can be achieved.
The limiting block 2.6 can be eliminated, a spring with higher rigidity can be selected, or a bottom plate 2.5 is used for limiting.
The embodiments of the present invention are described above with reference to the drawings, and the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention is not limited to the above-described embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A retractable footrest for a railway vehicle, comprising: the device comprises a step assembly (1) and elastic support box bodies (2) positioned on two sides of the step assembly (1);
the step assembly (1) comprises a vertical plate (1.3) and at least two step plates (1.2, 1.4) which are arranged at intervals in the vertical direction, two ends of each step plate (1.2, 1.4) are respectively and fixedly connected with the vertical plate (1.3), a connecting plate (1.1) is arranged on the outer side of the vertical plate (1.3), and the connecting plate (1.1) and the step plates (1.2, 1.4) are both horizontally arranged;
the elastic supporting box body (2) comprises a bottom plate (2.5), a front baffle plate (2.1), a rear baffle plate (2.2), an outer side plate (2.3) and a top plate (2.7) which are fixedly connected with each other; the connecting plate (1.1) is located in the cavity of the elastic support box body (2), a spring (3) extending in the vertical direction is arranged in the elastic support box body (2), one end of the spring (3) is fixedly connected to the bottom plate (2.5) or the top plate (2.7), and the other end of the spring is abutted to or connected to the connecting plate (1.1).
2. The retractable footrest of a railway vehicle as claimed in claim 1, characterized in that a guide rod (4) for guiding the spring (3) is further provided in the elastic support box (2), and a through hole (5) for the guide rod (4) to pass through is opened on the connecting plate (1.1).
3. Retractable footrest for railway vehicles according to claim 2, characterized in that said guide rods (4) and said springs (3) are provided in more than two one-to-one correspondence.
4. Retractable footrest for a rail vehicle according to claim 1, characterized in that a stop block (2.6) is arranged in the resilient support housing (2), said stop block (2.6) being fixedly connected to the base plate (2.5) for limiting the limit position of the downward movement of the connecting plate (1.1).
5. The retractable footrest of a railway vehicle according to claim 1, characterized in that the outer wall of the outer side plate (2.3) is further fixed with a mounting plate, the mounting plate is horizontally arranged and is provided with a connecting hole (6).
6. Telescopic footrest for a railway vehicle according to claim 5, characterized in that the connection holes (6) are kidney-shaped holes.
7. Retractable footrest for railway vehicles according to claim 5, characterized in that the top plate (2.7) is removably connected to the mounting plate by means of fasteners.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110545961.0A CN113291336B (en) | 2021-05-19 | 2021-05-19 | Telescopic pedal of railway vehicle |
| EP21940508.1A EP4324715A1 (en) | 2021-05-19 | 2021-11-11 | Retractable step for railway vehicle |
| PCT/CN2021/130003 WO2022242064A1 (en) | 2021-05-19 | 2021-11-11 | Retractable step for railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110545961.0A CN113291336B (en) | 2021-05-19 | 2021-05-19 | Telescopic pedal of railway vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113291336A CN113291336A (en) | 2021-08-24 |
| CN113291336B true CN113291336B (en) | 2022-08-12 |
Family
ID=77322807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110545961.0A Active CN113291336B (en) | 2021-05-19 | 2021-05-19 | Telescopic pedal of railway vehicle |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4324715A1 (en) |
| CN (1) | CN113291336B (en) |
| WO (1) | WO2022242064A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113291336B (en) * | 2021-05-19 | 2022-08-12 | 中车株洲电力机车有限公司 | Telescopic pedal of railway vehicle |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0735148B2 (en) * | 1989-05-23 | 1995-04-19 | 弘西商事株式会社 | Double-decker bus |
| FR2654999B1 (en) * | 1989-11-27 | 1992-01-24 | Regie Autonome Transports | LOWERING GROUND STEP FOR VEHICLES, ESPECIALLY FOR PUBLIC TRANSPORT VEHICLES. |
| US5944332A (en) * | 1997-12-29 | 1999-08-31 | Lee; Hsi Sin | Dirt removing running board for automobile |
| US20030094781A1 (en) * | 2001-10-26 | 2003-05-22 | Alfonso Jaramillo | Retractable step for vehicles and other purposes |
| CN201971018U (en) * | 2010-12-08 | 2011-09-14 | 周明星 | Expansion pedal for railway passenger cars |
| CN104787065B (en) * | 2015-04-29 | 2017-07-04 | 南京康尼机电股份有限公司 | A kind of automatic pedal device of EMUs door system |
| CN204870769U (en) * | 2015-08-26 | 2015-12-16 | 上海格拉曼国际消防装备有限公司 | Running -board for fire engine |
| CN106184248A (en) * | 2016-07-29 | 2016-12-07 | 中车长春轨道客车股份有限公司 | City railway vehicle pedal to pedal |
| CN207842807U (en) * | 2017-11-17 | 2018-09-11 | 镇江方略科技咨询有限公司丹阳分公司 | A kind of Large freight auto pedal |
| CN208376636U (en) * | 2018-07-02 | 2019-01-15 | 湖南铁道职业技术学院天一实业有限公司 | A kind of foot pedal to automatically reset |
| CN209756949U (en) * | 2018-12-29 | 2019-12-10 | 常州市神霸车辆配件有限公司 | automobile pedal |
| CN111532208A (en) * | 2020-04-15 | 2020-08-14 | 合肥丰华汽车零部件有限公司 | Multifunctional step pedal for truck |
| CN113291336B (en) * | 2021-05-19 | 2022-08-12 | 中车株洲电力机车有限公司 | Telescopic pedal of railway vehicle |
-
2021
- 2021-05-19 CN CN202110545961.0A patent/CN113291336B/en active Active
- 2021-11-11 EP EP21940508.1A patent/EP4324715A1/en active Pending
- 2021-11-11 WO PCT/CN2021/130003 patent/WO2022242064A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022242064A1 (en) | 2022-11-24 |
| CN113291336A (en) | 2021-08-24 |
| EP4324715A1 (en) | 2024-02-21 |
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