Urban rail transit station traction ladder

Abstract

The utility model discloses an urban rail transit station traction ladder, and belongs to the technical field of traction ladders. The track is arranged on one side of a stair, and a ruler rack is fixed to the track in the axial direction. The bottom of the electric box is provided with rail grooves matched with the rails. A battery, a servo motor, a transmission assembly and a gear are installed in the electric box. The battery supplies power to the servo motor, and the output end of the servo motor drives the gear to rotate through the transmission assembly. The lower end of the gear extends out of the electric box and is meshed with a ruler rack on the track. One side of the box body of the electric box is foldably provided with a pedal for a user to stand, and the other side is fixedly provided with a handrail. And control keys are arranged on the armrests. The control box is installed in the middle of the handrail and internally provided with a circuit board. A control instruction is transmitted to the circuit board through the control key, and the servo motor is controlled by the circuit board to act, so that the electric box moves along the track. The traction ladder provided by the utility model is small and light in structure and convenient to operate, and solves the problem that old people are inconvenient to climb stairs at urban rail transit stations.

Description

Technical Field

[0001] The invention belongs to the technical field of traction elevators, and in particular relates to a traction elevator for an urban rail transit station. Background Art

[0002] With the aggravation of my country's aging population and the vigorous development of urban rail transit, at urban rail transit stations such as subways and high-speed railways, the main channels from the station to the ground are electric elevators, escalators, and stairs. There are generally fewer electric elevators and escalators, especially when there is a large flow of people. It is too crowded and you need to wait to ride. In order to avoid crowding, many people will choose to use the stairs. At the same time, some exits of some stations may not be equipped with electric elevators and escalators, and can only be accessed by stairs. Choosing to use stairs will bring inconvenience to the elderly or special groups entering and exiting urban rail transit stations.

[0003] Therefore, it is necessary to install a traction ladder in the stairway to add another automatic stairway access equipment. At present, there are very few traction ladders in urban rail transit stations in my country. Although some traction ladders exist, most of them are for the convenience of disabled people. They are also in a semi-abandoned state due to their large size, inconvenience in use, or need special guidance or assistance to use.

[0004] Therefore, it is necessary to design an electric traction ladder that is light in structure, easy to operate, and suitable for the elderly or special groups with mobility difficulties to use when going up stairs. Summary of the invention

[0005] Technical problem to be solved: In order to avoid the deficiencies of the prior art, the present invention provides a traction ladder for urban rail transit stations to solve the problem of the inconvenience of elderly people taking the stairs at urban rail transit stations.

[0006] The technical solution of the present invention is: a traction ladder at an urban rail transit station, comprising a track, an electric box, a handrail, and a control box; the track is arranged on one side of a staircase where the traction ladder is to be installed; a ruler rack is fixed axially on the upper surface of the track;

[0007] The electric box is the main part of the traction ladder. The bottom of the box body of the electric box is provided with a track groove, which is connected with the track. The box body of the electric box is equipped with a battery, a servo motor, a transmission assembly, a gear shaft, and a gear. The battery is electrically connected to the servo motor to supply power to the servo motor. The servo motor is used to drive the gear to rotate. The output end of the servo motor is connected to the gear shaft through the transmission assembly. The gear is sleeved on the gear shaft and connected with the gear shaft key. The lower end of the gear extends out of the box body, falls into the track groove, and meshes with the ruler rack on the track. One side of the box body of the electric box is foldable and provided with a foot pedal for the user of the traction ladder to stand.

[0008] The handrail is fixed to the side of the electric box facing away from the foot pedal, and is used by the user to hold on; the handrail is provided with a control button for controlling the movement of the traction ladder;

[0009] The control box is installed in the middle of the armrest, and a circuit board is arranged in the control box; the servo motor and the operation buttons are electrically connected to the circuit board, and are used to transmit control instructions to the circuit board through the operation buttons, and control the action of the servo motor through the circuit board.

[0010] A further technical solution of the present invention is: the track is a segmented structure, formed by connecting and assembling multiple segments of sub-tracks in sequence; a ruler rack is fixed axially on one side of the upper surface of the sub-track; inner recesses are symmetrically provided on both sides of the sub-track for cooperating with the protruding portions on both sides of the track groove at the bottom of the electrical box body; an outer convex docking shaft is provided at one end of the sub-track, and an inner concave docking hole is provided at the other end, and the docking shaft of one segment of the sub-track cooperates with the docking hole of the adjacent segment of the sub-track to achieve seamless docking between the two.

[0011] A further technical solution of the present invention is: a track fixing seat is installed at the bottom of the sub-track for fixing and connecting the sub-track and the stairs.

[0012] A further technical solution of the present invention is: the transmission assembly includes a right-angle gearbox and a reduction box, the input end of the right-angle gearbox is connected to the output shaft of the servo motor, the output end of the right-angle gearbox is connected to the input end of the reduction box, and the right-angle gearbox is used to change the power output direction of the servo motor at a right angle; the output end of the reduction box is coaxially connected to the gear shaft, which is used to reduce the output speed of the servo motor.

[0013] A further technical solution of the present invention is: the foot pedal is of side-opening type, one end of the foot pedal is hinged to the electrical box body through a pedal shaft, the other end of the foot pedal is provided with a buckle groove and is engaged with a corresponding buckle on the electrical box body; a pedal button is provided at the connection between the foot pedal and the electrical box body for unlocking the buckle.

[0014] A further technical solution of the present invention is: there are two armrests, namely an adult armrest and a child armrest, the adult armrest is used for adults, and the child armrest is used for people who are shorter than adult height; the rods of the two armrests both pass through the control box, the handle of the adult armrest is installed at the top of the rod, and the handle of the child armrest is installed on the inner side of the control box, and the handles of the two armrests are installed with control buttons.

[0015] A further technical solution of the present invention is: the armrest is a hollow tube, and the cables connecting the control buttons and the circuit board, and the cables connecting the circuit board and the servo motor are all located in the hollow tube corresponding to the armrest.

[0016] A further technical solution of the present invention is: three groups of rollers are installed in the track groove of the electrical box body to reduce the friction between the electrical box and the track; the first group of rollers is located on the top wall of the track groove and is in rolling contact with the upper surface of the sub-track; the second group of rollers and the third group of rollers are respectively installed on the protruding parts on both sides of the track groove, and are in rolling contact with the load-bearing top surface of the concave part of the sub-track.

[0017] A further technical solution of the present invention is: the control buttons include a forward button and a stop button, the forward button is used to control the forward movement of the traction ladder, and the stop button is used to control the traction ladder to stop moving.

[0018] Beneficial Effects

[0019] The beneficial effects of the present invention are as follows: the present invention provides a traction ladder for an urban rail transit station, which is used to be arranged on one side of the stairs for entering and exiting the rail transit station. By connecting and assembling multiple sections of sub-tracks in sequence, a traction ladder running track connecting the bottom of the stairs to the ground is formed. The electric box of the traction ladder is provided with a track groove and a track socket, and the gear in the electric box meshes with the spur rack of the sub-track in the track groove. Driven by the servo motor in the electric box, the gear rotates and meshes with the spur rack to drive the electric box to move along the track. The user stands on the foot pedal on one side of the electric box, holds the handrail, and operates the control button to use it.

[0020] The present invention is designed with a foldable side-opening foot pedal structure, the outer contour of the foot pedal matches the side wall of the electric box body, which saves space while ensuring use. When in use, the foot pedal is unfolded by pressing the pedal button, and the foot pedal is limited to a horizontal state after being unfolded by the limit block on its outer side, which is convenient for the user to stand. When not in use, the foot pedal is retracted to be connected with the electric box body, thereby saving space and avoiding inconvenience to passers-by.

[0021] The present invention is provided with two handrails of different heights, has wider applicability, and can meet the needs of people of different heights.

[0022] The present invention installs three groups of rollers in the track groove of the electric box body, which can improve the smoothness of the sliding of the electric box on the track, reduce friction, and increase the standby time of the battery.

[0023] The structure of the present invention is compact and light. The installation direction of the servo motor faces the travel direction of the traction ladder, and then its transmission direction is turned by a right-angle gear box. Such a design reduces the thickness of the electric box body, thereby reducing the space occupied by the traction ladder on the stairs.

[0024] The multi-section track assembly structure of the present invention is convenient for installation and maintenance. When a track fails, the faulty part can be repaired in a targeted manner, thus saving maintenance costs and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1This is a structural diagram of the traction ladder of the present invention without showing the track;

[0026] Figure 2 It is a schematic diagram of the external structure of the traction ladder of the present invention and the internal parts of the electric box;

[0027] Figure 3 This is a schematic diagram of the structure of the electric box of the present invention hiding half of the electric box body;

[0028] Figure 4 It is a top view of the internal parts of the electric box of the present invention;

[0029] Figure 5 This is a schematic diagram of the track groove structure at the bottom of the electrical box of the present invention;

[0030] Figure 6 This is a schematic diagram of the unfolded state of the foot pedal of the present invention;

[0031] Figure 7 It is a schematic diagram of the track structure of the present invention;

[0032] Figure 8 A top view of the track structure of the present invention;

[0033] Fig. 9 This is a schematic diagram of the internal structure of the control box.

[0034] Description of reference numerals:

[0035] 1. Electric box, 110. Track groove, 111. Protrusion, 112. First set of rollers, 113. Second set of rollers, 114. Third set of rollers, 120. Battery, 121. Battery fixing, 130. Servo motor, 131. Motor fixing frame, 140. Gear shaft, 150. Gear, 160. Foot pedal, 161. Pedal shaft, 162. Buckle groove, 163. Limit block, 164. Shaft fixing, 170. Right angle gear box, 180. Speed ​​reducer, 190. Buckle, 191. Buckle button;

[0036] 2. Handrail, 210. Control button, 211. Forward button, 212. Stop button, 220. Adult handrail, 221. Handle of adult handrail, 222. Access hole between the rod of adult handrail and the electric box, 230. Child handrail, 231. Handle of child handrail, 232. Access hole between the rod of child handrail and the electric box;

[0037] 3. Control box, 310 circuit board;

[0038] 4. Sub-tracks, 410. Ruler rack, 420. Inner recess, 430. Docking shaft, 440. Track fixing seat. DETAILED DESCRIPTION

[0039] The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] See also Figure 1-9 The present invention discloses a traction ladder for a city rail transit station, comprising a track laid on one side of the stairs, an electric box 1 installed on the track and moving along the track, a handrail 2 installed on one side of the electric box 1, and a control box 3 located in the middle of the handrail 2 for installing a traction ladder control device.

[0042] like Figure 7-8 As shown, the track of the traction ladder adopts a segmented structure, which is formed by connecting and assembling multiple sections of sub-tracks 4 in sequence, which is convenient for installation and maintenance. A ruler rack 410 is fixed along the axial direction on one side of the upper surface of the sub-track 4, which is used to mesh with the gear in the electric box 1. Inner recesses 420 are symmetrically provided on both sides of the sub-track 4, which are used to cooperate with the protrusions 111 in the track groove 110 at the bottom of the box body of the electric box 1 to achieve the connection between the electric box 1 and the track. An outer convex docking shaft 430 is provided at one end of the sub-track 4, and an inner concave docking hole is provided at the other end. The docking shaft 430 of one section of the sub-track 4 cooperates with the docking hole of the adjacent section of the sub-track 4 to achieve seamless docking of two adjacent sub-tracks 4. A track fixing seat 440 is installed at the bottom center of each sub-track 4, which is used to fix the sub-track 4 and the stairs. One end of the track fixing seat 440 is fixedly connected to the bottom of the sub-track 4 by screws, and the other end of the fixing seat 440 is fixedly connected to the stair step by screws.

[0043] like Figure 1-5As shown, the electric box 1 is the main part of the traction ladder, and a track groove 110 is provided at the bottom of the box body of the electric box 1 for connection with the track. The box body of the electric box 1 is a two-half split structure, which is split along the central axis of the track groove 110 at the bottom of the box body. The inner cavities of the two half boxes are relatively buckled and connected by fasteners to form the box body of the electric box 1. A battery 120, a servo motor 130, a right-angle gear box 170, a reduction box 180, a gear shaft 140, and a gear 150 are installed in the box body of the electric box 1. The battery 120 is fixed in the box body by a battery fixing member 121, and the battery 120 is electrically connected to the servo motor 130 to supply power to the servo motor 130. The servo motor 130 is used to drive the gear 150 in the box to rotate. Specifically: the servo motor 130 is installed on the motor fixing frame 131, and the output shaft of the servo motor 130 faces the upward direction of the traction ladder; the motor fixing frame 131 is fixed to the inner wall of the box. In order to reduce weight, the motor fixing frame 131 is an L-shaped hollow structure as a whole; the output end of the servo motor 130 is coaxially connected to the input end of the right-angle gear box 170, and the output end of the right-angle gear box 170 is coaxially connected to the input end of the reduction box 180. The right-angle gear box 170 is used to change the power output direction of the servo motor 130 at a right angle; the output end of the reduction box 180 is coaxially connected to the gear shaft 140, and the reduction box 180 is used to reduce the output speed of the servo motor 130 to ensure the appropriate travel speed of the traction ladder; the gear 150 is a spur gear, which matches the tooth shape of the ruler rack 410 on the sub-track 4, and the gear 150 is mounted on the gear shaft 140 and is keyed to the gear shaft 140. A slot hole for the gear 150 to partially extend out of the box is provided at the bottom of the box, i.e., on the top surface of the track groove 110. The lower end of the gear 150 extends out of the box from the slot hole, falls into the track groove 110, and meshes with the ruler rack 410 on the track. When the servo motor 130 rotates, the power is transmitted to the gear 150 through the right-angle gear box 170, the reduction box 180, and the gear shaft 140 to rotate. The gear 150 meshes and rolls on the ruler rack 410, so that the electric box 1 moves on the track.

[0044] In order to improve the smoothness of the sliding of the electric box 1 on the track, reduce friction, and increase the standby time of the battery 120, the present invention installs three sets of rollers in the track groove 110 of the box body of the electric box 1. Figure 5 As shown, the first group of rollers 112 is located on the top wall of the track groove 110, and the first group of rollers 112 rolls in contact with the upper surface of the sub-track 4. The first group of rollers 112 and the gear 150 are on different sides, so they do not interfere with each other. The second group of rollers 113 and the third group of rollers 114 are respectively installed on the upper surfaces of the protruding portions 111 on both sides of the track groove, and both roll in contact with the load-bearing top surface of the inner recess 42 of the sub-track 4.

[0045] like Figure 6As shown, a foot pedal 160 is foldably provided on one side of the body of the electric box 1 for the user of the traction ladder to stand. Specifically, in order to save space, the foot pedal 160 is designed to be side-opening, one end of the foot pedal 160 is hinged to the body of the electric box 1 through a pedal shaft 161, and the other end of the foot pedal 16 is provided with a buckle groove 162 and is engaged with a buckle 190 correspondingly provided on the body of the electric box 1. A buckle button 191 is provided above the buckle 190 for unlocking the buckle 190, and a spring is provided in the buckle button. The buckle 190 can be retracted by pressing the buckle button 191 to achieve unlocking. The unlocked foot pedal 160 rotates around the pedal shaft 161 to open, and is in a horizontal state under the limiting action of the limiting block 163 installed on the outside of the foot pedal 160, so that the user can stand. When it is necessary to retract and buckle, lift the foot pedal 160 upward and push it toward the buckle 190, so that the buckle 190 and the buckle groove 162 can be locked. In this embodiment, the width of the footrest 160 is 300 mm and the length is 450 mm.

[0046] like Figure 2 , 9 As shown, the handrail 2 is fixed to the side of the electric box 1 facing away from the foot pedal 160, and is used for the user to hold. In order to facilitate the control of the traction ladder, a control button 210 is provided on the handrail 2. The control box 3 is installed in the middle of the handrail 2. A circuit board 310 is provided in the control box 3 for controlling the action of the servo motor 130. The servo motor 130 and the control button 210 are both electrically connected to the circuit board 310. The control button 210 sends a control instruction to the circuit board 310, and the circuit board 310 controls the action of the servo motor 130.

[0047] Specifically, in order to adapt to the use of people of different heights, two handrails 2 are provided, one is an adult handrail 220 and the other is a child handrail 230. The adult handrail 220 is used for adults, and the child handrail 230 is used for people who are less than adult height. The rods of the two handrails 2 both pass through the control box 3, the handle of the adult handrail 220 is installed on the top of its rod, and the handle of the child handrail is installed on the inner side of the control box 3. The handles of the two handrails 2 are both installed with control buttons 210. The control buttons 210 include a forward button 211 and a stop button 212. The forward button 211 is used to control the forward movement of the traction ladder, and the stop button 212 is used to control the traction ladder to stop moving. The control buttons 210 are fixedly installed on the handles of the two handrails through button connectors.

[0048] In this embodiment: the height of the adult handrail 220 is designed to be 1063.0 mm, the diameter of the handle 221 of the adult handrail is 35 mm, and the length of the handle 221 is 125 mm; at the same time, the rod height of the adult handrail 220 is adjustable. The height of the child handrail 230 is 653.5 mm, the diameter of the handle 231 of the child handrail is 25 mm, and the length of the handle 231 is 100 mm. Both handrails 2 are hollow tubes, and the cables connecting the control button 210 and the circuit board 310, and the cables connecting the circuit board 310 and the servo motor 130 are all located in the hollow tube of the corresponding handrail 2. The wall of the electrical box 1 is provided with an access hole 222 for the rod of the adult handrail and the electrical box body, and an access hole 232 for the rod of the child handrail and the electrical box body for the passage of cables.

[0049] When in use, the footrest 160 is unfolded by pressing the buckle button 191. The user stands on the footrest 160 and holds the handle of the handrail 2. According to the height of the user, the user can choose to hold the handle 221 of the adult handrail or the handle 231 of the child handrail. Press the forward button 211 of the handle to make the traction ladder go up. When it reaches the exit of the stairs, press the stop button 212 to stop the traction ladder and complete the upstairs movement. If an emergency occurs during the traction ladder's movement, the traction ladder can also be stopped by pressing the stop button 212. After the user steps off the footrest 160 for a certain period of time, the traction ladder automatically returns to its original position under the control of a preset program so that it can be used for the next upstairs use.

[0050] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and intent of the present invention.

Claims

1. A traction elevator for urban rail transit stations, characterized in that: It includes a track, an electric box, a handrail, and a control box; the track is arranged on one side of the staircase where the traction ladder needs to be installed; a ruler rack is fixed axially on the upper surface of the track; The electric box is the main part of the traction ladder. The bottom of the box body of the electric box is provided with a track groove for connecting with the track. The box body of the electric box is equipped with a battery, a servo motor, a transmission assembly, a gear shaft, and a gear. The battery is electrically connected to the servo motor for powering the servo motor. The servo motor is used to drive the gear to rotate. The output end of the servo motor is connected to the gear shaft through the transmission assembly. The gear is sleeved on the gear shaft and connected with the gear shaft key. The lower end of the gear extends out of the box body, falls into the track groove, and meshes with the ruler rack on the track. One side of the box body of the electric box is foldable and provided with a foot pedal for the user of the traction ladder to stand. The armrest is fixed to the side of the electric box facing away from the foot pedal, and is used for the user to hold; the armrest is provided with a control button for controlling the movement of the traction ladder; The control box is installed in the middle of the armrest, and a circuit board is arranged in the control box; the servo motor and the control buttons are electrically connected to the circuit board, and are used to transmit control instructions to the circuit board through the control buttons, and control the action of the servo motor through the circuit board.

2. The urban rail transit station traction elevator according to claim 1, characterized in that: The track is a segmented structure, formed by connecting and assembling multiple segments of sub-tracks in sequence; a ruler rack is fixed axially on one side of the upper surface of the sub-track; inner recesses are symmetrically provided on both sides of the sub-track for cooperating with the protrusions on both sides of the track groove at the bottom of the electrical box body; an outer convex docking shaft is provided at one end of the sub-track, and an inner concave docking hole is provided at the other end, and the docking shaft of one segment of the sub-track cooperates with the docking hole of the adjacent segment of the sub-track to achieve seamless docking between the two.

3. The urban rail transit station traction elevator according to claim 2, characterized in that: Three groups of rollers are installed in the track groove of the electrical box body to reduce the friction between the electrical box and the track; the first group of rollers is located on the top wall of the track groove and is in rolling contact with the upper surface of the sub-track; the second group of rollers and the third group of rollers are respectively installed on the protruding parts on both sides of the track groove, and are in rolling contact with the load-bearing top surface of the concave part of the sub-track.

4. The urban rail transit station traction elevator according to claim 2, characterized in that: A track fixing seat is installed at the bottom of the sub-track for fixing and connecting the sub-track and the stairs.

5. The urban rail transit station traction elevator according to claim 1, characterized in that: The transmission assembly includes a right-angle gearbox and a reduction box. The input end of the right-angle gearbox is connected to the output shaft of the servo motor, and the output end of the right-angle gearbox is connected to the input end of the reduction box. The right-angle gearbox is used to change the power output direction of the servo motor at a right angle; the output end of the reduction box is coaxially connected to the gear shaft, which is used to reduce the output speed of the servo motor.

6. The urban rail transit station traction elevator according to claim 1, characterized in that: The foot pedal is of side-opening type, one end of the foot pedal is hinged to the electric box body through a pedal shaft, and the other end of the foot pedal is provided with a buckle groove and is engaged with a corresponding buckle arranged on the electric box body; a buckle button is provided above the buckle for unlocking the buckle.

7. The urban rail transit station traction elevator according to claim 1, characterized in that: There are two armrests, one for an adult and the other for a child. The adult armrest is for adults, and the other for people who are shorter than an adult. The rods of the two armrests penetrate the control box, the handle of the adult armrest is mounted on the top of the rod, and the handle of the child armrest is mounted on the inner side of the control box. The handles of the two armrests are provided with control buttons.

8. The urban rail transit station traction elevator according to claim 7, characterized in that: The armrest is a hollow tube, and the cables connecting the control buttons and the circuit board, and the cables connecting the circuit board and the servo motor are all located in the hollow tube of the corresponding armrest.

9. The urban rail transit station traction elevator according to claim 1, characterized in that: The control buttons include a forward button and a stop button. The forward button is used to control the forward movement of the traction ladder, and the stop button is used to control the traction ladder to stop moving.

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