Telescopic pedal device of railway vehicle

Abstract

The invention discloses a telescopic pedal device of a railway vehicle, which comprises a frame body, the frame body is arranged below the railway vehicle, the telescopic pedal device further comprises a movable frame, a plurality of support pedals, a cleaning pad, a spraying pipe and a heating piece, the movable frame is movably arranged on the frame body, the support pedals are rotatably connected to the movable frame, and the cleaning pad is arranged on the movable frame. The multiple supporting pedals are turned over synchronously, anti-skid lines are arranged on the outer side walls of the supporting pedals, the cleaning pads are movably arranged below the supporting pedals and used for wiping the faces, located at the bottoms, of the supporting pedals, the spraying pipes move synchronously along with the cleaning pads and used for spraying cleaning liquid to the faces, located at the bottoms, of the supporting pedals, and the heating pieces are arranged on the movable frame. Hot air is conveyed into the supporting pedal. The telescopic pedal is used for solving the problem that in the prior art, a telescopic pedal is low in use reliability in severe weather.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of railway vehicle components, in particular to a telescopic footboard device of a railway vehicle. BACKGROUND

[0002] There is a certain distance between the door of the railway vehicle and the platform, in order to prevent passengers from falling and being injured when getting on and off the train, a footboard is usually arranged at the train door for passengers to get on and off the train.

[0003] The traditional footboard is placed at the train door, and the train attendant overlaps the footboard between the platform and the train door, which has poor stability and needs manual folding and unfolding of the footboard, and the degree of automation is low. With the development of technology, telescopic or folding footboards are currently used to realize automatic folding and unfolding of the footboard.

[0004] However, the current telescopic footboard has low reliability in use in bad weather, especially in rainy and snowy weather. Rain and snow falling on the surface of the footboard will cause the footboard to be wet and slippery, especially when the passenger's shoes are muddy, which will further cause the footboard to be dirty and slippery, affecting the safety and reliability of the passengers getting on and off the train. If the footboard is not cleaned, it will also affect the subsequent use of the passengers. SUMMARY

[0005] (I) Technical problems solved In view of the deficiencies of the prior art, the present application provides a telescopic footboard device of a railway vehicle to solve the problem of low reliability of the prior art telescopic footboard in use in bad weather.

[0006] (II) Technical solutions To achieve the above-mentioned purpose, the present application provides the following technical solutions: a telescopic footboard device of a railway vehicle, comprising a frame body, the frame body is installed below the railway vehicle, further comprising: a moving frame, the moving frame is movably arranged on the frame body; a plurality of support footboards, the support footboards are rotatably connected to the moving frame, the plurality of support footboards are synchronously flipped, and the outer side wall of the support footboard is provided with anti-slip lines; a cleaning pad, the cleaning pad is movably arranged below the support footboard, and is used to wipe the side of the support footboard at the bottom; a spray pipe, the spray pipe moves synchronously with the cleaning pad, and is used to spray cleaning liquid to the side of the support footboard at the bottom; a heating element, the heating element is arranged on the moving frame, and is used to deliver hot air to the inside of the support footboard, the heating element comprises: The heater is installed inside the drying cavity, one end of the supporting pedal away from the driving shaft is fixedly connected with a rotating shaft, the rotating shaft and the moving frame are rotationally connected, the rotating shaft and the supporting pedal are hollow structures, and the supporting pedal is communicated with the drying cavity through the rotating shaft.

[0007] In order to realize the rotation of the supporting pedal, one end of the supporting pedal is fixedly connected with a driven gear through a driving shaft, the driving shaft and the moving frame are rotationally connected, the moving frame has a transmission cavity, the driven gear is located inside the transmission cavity, a plurality of transmission gears are rotationally arranged inside the transmission cavity, the transmission gears and the driven gear are staggered, one of the transmission gears is coaxially fixedly connected with a driving gear, and a driving rack is movably arranged inside the transmission cavity and engaged with the driving gear.

[0008] In order to assist the rainwater on the surface of the supporting pedal to slide off, the drying cavity is communicated with a drying pipe, and the drying pipe has a gas outlet hole for blowing gas to the side of the supporting pedal located at the top.

[0009] In order to protect the cleaning pad and the spraying pipe, the frame body is fixedly provided with a protection groove, the cleaning pad and the spraying pipe are located inside the protection groove, and the bottom of the protection groove is communicated with a drain pipe.

[0010] In order to further assist the rainwater on the surface of the supporting pedal to slide off, a knocking shaft is rotationally connected to the protection groove, a knocking rod is arranged on the knocking shaft, and the knocking rod can knock the supporting pedal under the driving of the knocking shaft.

[0011] In order to further improve the drying effect on the supporting pedal, the frame body is fixedly provided with a blowing warehouse, a fan is installed inside the blowing warehouse, and the blowing warehouse is communicated with the drying cavity through an extension pipe.

[0012] In order to facilitate the sliding of rainwater, the outer side wall of the supporting pedal is fixedly connected with an arched strip with a middle high and edges low, and the anti-skid lines are arranged on the arched strip.

[0013] In order to improve the stability of the moving frame and the supporting pedal, the moving frame is fixedly connected with a limiting rod, the frame body is fixedly connected with a limiting seat, and the limiting rod and the limiting seat are in sliding fit.

[0014] (Three) beneficial effects Compared with the prior art, the present application provides a telescopic pedal device of a railway vehicle, which has the following beneficial effects: 1. In the application, the support pedal is moved outward by the moving frame to move to the gap between the railway vehicle and the platform, so that passengers can get on and off the vehicle, and the different side walls of the support pedal are rotated to the upper side for passengers to step on, and the side walls rotated to the lower side can be sprayed and cleaned by the spray pipe and the cleaning pad, and the waste water generated by cleaning can be discharged through the drain pipe, so that the support pedal is in a clean state before and after use, reducing stains and mud on the support pedal.

[0015] 2. In the application, the rain and snow or sewage brought by the passengers stepping on the support pedal slides from both sides of the arch-shaped strip through the shape of the arch-shaped strip, and the moving frame and the support pedal are struck by the knocking rod driven by the knocking shaft, which helps the rain and snow on the support pedal to slide off, reduces the passenger's slipping phenomenon caused by the residual rain and snow, and improves the reliability of the use of the support pedal.

[0016] 3. In the application, the heater and the fan cooperate to deliver hot air to the inside of the support pedal to heat the support pedal, so that the rain and the residual moisture on the support pedal are quickly dried, and the hot air is blown to the upper side of the support pedal through the blow-drying pipe, further reducing the residual rain and snow on the upper side of the support pedal, thereby reducing the slipping phenomenon and ensuring the stability of the use of the support pedal. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the whole of the application in a contracted state; Figure 2 is a structural schematic view of the first perspective of the whole of the application in an elongated state; Figure 3 is a structural schematic view of the second perspective of the whole of the application in an elongated state; Figure 4 is a structural schematic view of the first perspective of the moving frame, the support pedal and the arch-shaped strip of the application; Figure 5 is a structural schematic view of the second perspective of the moving frame, the support pedal and the arch-shaped strip of the application; Figure 6 is a structural schematic view of the support pedal, the driven gear, the transmission gear and the rotating shaft of the application; Figure 7 is a structural schematic view of the cleaning pad, the protection groove, the drain pipe and the screw feeding mechanism of the application; Figure 8 is a structural schematic view of the heater, the air supply bin, the fan and the blow-drying pipe of the application; Figure 9 is a structural schematic view of the frame body and the limiting seat of the application; Figure 10 is a structural schematic view of the application Figure 1A local enlarged structure schematic view at B; Figure 11 For the present application Figure 2 A local enlarged structure schematic view at B; Figure 12 For the present application Figure 6 A local enlarged structure schematic view at C; Figure 13 For the present application Figure 7 A local enlarged structure schematic view at D.

[0018] In the figure: 1, frame; 2, moving frame; 3, electric cylinder one; 4, limiting rod; 5, limiting seat; 6, support pedal; 7, anti-skid pattern; 8, driving shaft; 9, driven gear; 10, transmission gear; 11, driving gear; 12, driving rack; 13, electric cylinder two; 14, cleaning pad; 15, protection groove; 16, drain pipe; 17, screw feeding mechanism; 18, spraying pipe; 19, knocking shaft; 20, knocking rod; 21, heater; 22, rotating shaft; 23, air supply bin; 24, fan; 25, blow-drying pipe; 26, arcuate strip. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0020] Please refer to Figures 1 to 13 A retractable pedal device of a railway vehicle, comprising a frame 1 installed below the railway vehicle, further comprising a moving frame 2, a support pedal 6, a cleaning pad 14, a spraying pipe 18 and a heating element.

[0021] Please refer to Figures 1 to 9The movable frame 2 is movably arranged on the frame body 1, the frame body 1 is bolted to the lower position of the door of the railway vehicle, the electric cylinder one 3 is arranged on the frame body 1, the movable frame 2 is fixedly connected to the output end of the electric cylinder one 3, the slide groove is arranged on the frame body 1, the movable frame 2 is slidingly arranged in the slide groove, the movable frame 2 is driven to move in and out by the electric cylinder one 3, after the door is opened, the movable frame 2 is moved out from the lower position of the railway vehicle to fill the gap between the railway vehicle and the platform, after the door is closed, the movable frame 2 is moved back to the inside of the frame body 1, the automatic expansion and contraction of the movable frame 2 is realized, the limiting rod 4 is fixedly connected to the movable frame 2, the limiting seat 5 is fixedly connected to the frame body 1, the limiting rod 4 and the limiting seat 5 are in sliding fit, the expansion and contraction of the movable frame 2 can be adapted by the sliding fit of the limiting rod 4 and the limiting seat 5, meanwhile, the limiting seat 5 supports and limits the limiting rod 4, the load capacity of the movable frame 2 is improved.

[0022] Please refer to Figures 1 to 12, support the pedal 6 is provided with a plurality of, support the pedal 6 rotatably connected to the moving frame 2, the plurality of support the pedal 6 synchronous flip, the outer side wall of support the pedal 6 is provided with anti-skid pattern 7, in order to realize the rotation of support the pedal 6, one end of support the pedal 6 is fixedly connected with driven gear 9 through drive shaft 8, drive shaft 8 and moving frame 2 are rotatably connected, moving frame 2 has transmission cavity, driven gear 9 is located in the inside of transmission cavity, a plurality of transmission gear 10 is rotatably arranged in the inside of transmission cavity, transmission gear 10 and driven gear 9 are staggered, transmission gear 10 and driven gear 9 are engaged, one of transmission gear 10 is coaxially fixedly connected with drive gear 11, drive rack 12 is movably arranged in the inside of transmission cavity, drive gear 11 and drive rack 12 are engaged, electric cylinder two 13 is installed in the inside of transmission cavity, drive rack 12 is fixedly connected to the output end of electric cylinder two 13, drive rack 12 can be driven to move through electric cylinder two 13, so as to drive drive gear 11 and driven gear 9 connected with it to rotate, under the transmission of transmission gear 10, the plurality of driven gear 9 is rotated synchronously, so as to realize the synchronous rotation of the plurality of support the pedal 6, support the pedal 6 telescopes with moving frame 2, for passengers to step on, support the pedal 6 rotates 180 degrees at a time, that is, after support the pedal 6 telescopes with moving frame 2 for getting on and off the vehicle, support the pedal 6 flips once, the side of support the pedal 6 located above supports the passengers, the side of support the pedal 6 located below can be cleaned, there is a certain gap between the adjacent two support the pedal 6, which provides the necessary space for the rotation of support the pedal 6 and the falling of sewage caused by rain and snow, the outer side wall of support the pedal 6 is fixedly connected with the arched strip 26 with high middle and low edge, the anti-skid pattern 7 is arranged on the arched strip 26, under the action of the arched shape of the arched strip 26, the rainwater on the surface thereof is easily slid off, thereby reducing the wet and slippery phenomenon of support the pedal 6, the anti-skid pattern 7 can use the convex form, effectively increase the friction, improve the stability of passenger walking and stepping, at the same time, the anti-skid pattern 7 in convex state is higher than the arched strip 26, the passenger's shoe sole contacts the anti-skid pattern 7, reduces the shoe sole slipping caused by the residual rainwater on the surface of the arched strip 26, and reduces the obstruction of the anti-skid pattern 7 to rainwater, facilitates the falling of rainwater.

[0023] Please refer to Figures 1 to 13The cleaning pad 14 is movably arranged below the support step 6 for wiping the side of the support step 6 at the bottom, the spray pipe 18 moves synchronously with the cleaning pad 14 for spraying cleaning liquid to the side of the support step 6 at the bottom, the frame body 1 is fixedly provided with a protection groove 15, the cleaning pad 14 and the spray pipe 18 are located in the protection groove 15, the bottom of the protection groove 15 is communicated with a drain pipe 16, the protection groove 15 is provided with a screw feeding mechanism 17, the cleaning pad 14 is detachably arranged on the screw nut of the screw feeding mechanism 17 through bolts or magic tapes, the spray pipe 18 is fixedly arranged on the screw nut, the cleaning pad 14 and the spray pipe 18 can be reciprocally moved in the protection groove 15 through the screw feeding mechanism 17, the spray pipe 18 is communicated with an external conveying pump, when the support step 6 is in the retracted state, the conveying pump conveys the cleaning liquid to the spray pipe 18 and sprays it on the side of the support step 6 below, at the same time, with the movement of the cleaning pad 14 and the spray pipe 18, the cleaning pad 14 uniformly spreads the cleaning liquid under the support step 6 and cleans the support step 6, the cleaned sewage falls into the protection groove 15 and is directly discharged to the ground through the drain pipe 16, at the same time, the protection groove 15 has a shielding effect on the support step 6, the cleaning pad 14 and the like to a certain extent, which reduces the pollution of the ground dust and the like to the bottom of the support step 6 and the damage of the screw feeding mechanism 17 and the spray pipe 18 and the like caused by the splashing of the gravel.

[0024] Please refer to Figures 1 to 11 To further assist the rainwater on the surface of the support step 6 to slide off, the protection groove 15 is rotatably connected with a knocking shaft 19, the knocking shaft 19 is provided with a knocking rod 20, the knocking rod 20 can knock the support step 6 under the driving of the knocking shaft 19, the knocking shaft 19 is fixedly connected with the screw rod in the screw feeding mechanism 17, the knocking rod 20 is made of elastic metal material, the knocking rod 20 contacts the bottom end of the support step 6, when the support step 6 is extended out of the frame body 1 with the movement frame 2 for passengers to get on and off the vehicle, the screw feeding mechanism 17 drives the screw rod and the knocking shaft 19 to rotate, the knocking shaft 19 drives the knocking rod 20 to knock the bottom of the support step 6 to vibrate the support step 6, so that the water on the surface of the support step 6 is shaken off, the rainwater and the like on the support step 6 is reduced, and the skidding phenomenon is further reduced.

[0025] Please refer to Figures 1 to 8The heating element is mounted on the movable frame 2 and is used to supply hot air into the interior of the support pedal 6. The heating element includes a heater 21. The movable frame 2 has a drying chamber, and the heater 21 is installed inside the drying chamber. A rotating shaft 22 is fixedly connected to the end of the support pedal 6 away from the drive shaft 8. The rotating shaft 22 and the movable frame 2 are rotatably connected. Both the rotating shaft 22 and the support pedal 6 are hollow structures. The support pedal 6 is connected to the drying chamber through the rotating shaft 22. An air supply chamber 23 is fixedly mounted on the frame 1. A fan 24 is installed inside the air supply chamber 23. The air supply chamber 23 is connected to the drying chamber through a telescopic pipe. The heater 21 generates heat when energized. Under the action of the fan 24, the diffusion of hot air is accelerated. The hot air enters the interior of the support pedal 6 through the rotating shaft 22 to heat and dry the support pedal 6, so that the rainwater above the support pedal 6 and the cleaning liquid below it evaporate quickly. At the same time, it can assist in drying the cleaning pad 14, ensuring the subsequent water absorption and cleaning ability of the cleaning pad 14.

[0026] Please see Figures 1 to 10 To help the rainwater slide off the surface of the support pedal 6, the drying chamber is connected to a drying pipe 25. The drying pipe 25 has an air outlet for blowing gas onto the top side of the support pedal 6. Under the action of the fan 24, some hot air is blown through the drying pipe 25 to the top of the support pedal 6, further accelerating the falling and evaporation of sewage on the surface of the arched strip 26 and reducing the slippery phenomenon of the support pedal 6.

[0027] The working principle or usage process of the retractable step device of the railway vehicle is as follows: the electric cylinder 3 drives the moving frame 2 and the support step 6 to extend or retract into the frame 1. The support step 6 fills the gap between the railway vehicle door and the platform for passengers to get on and off the vehicle. After the moving frame 2 and the support pedal 6 are retracted into the frame 1, the electric cylinder 2 13 drives the drive rack 12 to move, thereby causing multiple support pedals 6 to rotate 180 degrees synchronously, and the side that was stepped on by the passenger rotates to face the cleaning pad 14. The delivery pump sends the cleaning liquid into the interior of the spray pipe 18 and rinses the arched strip 26 under the support pedal 6. The lead screw feed mechanism 17 drives the spray pipe 18 and the cleaning pad 14 to move back and forth. The cleaning pad 14 wipes and cleans the arched strip 26 under the support pedal 6. The wastewater after cleaning is discharged to the ground through the drain pipe 16. In rainy and snowy weather, rainwater slides through the ends of the arched strips 26 to the inside of the protection groove 15, the heater 21 and the fan 24 are turned on, the fan 24 blows the hot air generated by the heater 21 into the inside of the support deck 6 to heat and dry it, at the same time, part of the hot air is blown to the upper part of the support deck 6 through the blow-drying pipe 25, which is convenient for the evaporation and sliding of the rainwater, and the lead screw feeding mechanism 17 continuously reciprocates when the support deck 6 is in the working position, driving the knocking shaft 19 and the knocking rod 20 to rotate, the knocking rod 20 knocks and vibrates the support deck 6, which shakes off the water on the surface of the arched strips 26, further reduces the wet and slippery phenomenon on the surface of the arched strips 26, and guarantees the safety of passengers.

[0028] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A retractable step device for a railway vehicle comprising a frame (1) which is mounted under the railway vehicle, characterized in that, Also include: The mobile frame (2) is movably arranged on the frame body (1); Supporting the pedal (6) is provided with a plurality of, the supporting pedal (6) is rotatably connected to the mobile frame (2), a plurality of the supporting pedal (6) synchronous flip, the outer side wall of the supporting pedal (6) is provided with anti-skid line (7); Cleaning pad (14), the cleaning pad (14) is movably arranged below the supporting pedal (6), for wiping the side of the supporting pedal (6) at the bottom; The spray pipe (18) moves synchronously with the cleaning pad (14), for spraying cleaning fluid to the side of the supporting pedal (6) at the bottom; The heating element is arranged on the mobile frame (2), for conveying hot air to the inside of the supporting pedal (6).

2. A retractable step assembly for a railway vehicle as defined in claim 1, wherein One end of the supporting pedal (6) is fixedly connected with a driven gear (9) through a drive shaft (8), the drive shaft (8) and the mobile frame (2) are rotatably connected, the mobile frame (2) has a transmission cavity, the driven gear (9) is located in the transmission cavity, a plurality of transmission gears (10) are rotatably arranged in the transmission cavity, the transmission gears (10) and the driven gear (9) are staggered, the transmission gears (10) and the driven gear (9) are engaged, one of the transmission gears (10) is coaxially fixedly connected with a drive gear (11), a drive rack (12) is movably arranged in the transmission cavity, the drive gear (11) and the drive rack (12) are engaged.

3. A retractable step assembly for a railway vehicle as defined in claim 2, wherein, The heating element includes: The mobile frame (2) has a drying cavity, the heater (21) is installed in the drying cavity, one end of the supporting pedal (6) away from the drive shaft (8) is fixedly connected with a rotating shaft (22), the rotating shaft (22) and the mobile frame (2) are rotatably connected, the rotating shaft (22) and the supporting pedal (6) are both hollow structures, the supporting pedal (6) is communicated with the drying cavity through the rotating shaft (22).

4. A retractable step assembly for a railway vehicle as defined in claim 3, wherein The frame body (1) is fixedly provided with a air supply bin (23), the air supply bin (23) is internally provided with a fan (24), the air supply bin (23) is communicated with the drying cavity through the telescopic pipe.

5. A retractable step assembly for a railway vehicle as defined in claim 4, wherein The drying cavity is communicated with a blow-drying pipe (25), the blow-drying pipe (25) has a gas outlet hole for blowing gas to the side of the supporting pedal (6) at the top.

6. A retractable step assembly for a railway vehicle as defined in claim 5, wherein, The frame body (1) is fixedly provided with a protection groove (15), the cleaning pad (14) and the spray pipe (18) are located in the protection groove (15), the bottom of the protection groove (15) is communicated with a drain pipe (16).

7. A retractable step assembly for a railway vehicle as defined in claim 6 wherein, The protection groove (15) is rotatably connected with a knocking shaft (19), the knocking shaft (19) is provided with a knocking rod (20), the knocking rod (20) can knock the supporting pedal (6) under the driving of the knocking shaft (19).

8. A retractable step assembly for a railway vehicle as defined in claim 7, wherein The outer side wall of the support pedal (6) is fixedly connected with an arched strip (26) with a middle height and a low edge, and the anti-skid lines (7) are arranged on the arched strip (26).

9. A retractable step assembly for a railway vehicle as defined in claim 8, wherein, The mobile frame (2) is fixedly connected with a limiting rod (4), the frame body (1) is fixedly connected with a limiting seat (5), and the limiting rod (4) and the limiting seat (5) are in sliding fit.

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