Cab foot plate trolley for rail transit overhaul trench

Abstract

The utility model belongs to the field of rail transit, and particularly relates to a cab apron trolley for a rail transit overhaul trench, which comprises a frame, a cab apron arranged at the top of the frame and traveling mechanisms arranged on two opposite sides of the frame in the length direction of the overhaul trench, the walking mechanism can move on the two opposite sides of an opening of the overhaul trench in the length direction of the overhaul trench so as to drive the vehicle frame and the cab apron located on the vehicle frame to move in the length direction of the overhaul trench. Due to the fact that the cab apron trolley can move, transition support can be provided for maintainers to cross an overhaul trench at any position, and the cab apron trolley is simple in structure and convenient to use.

Description

Technical Field

[0001] The present application relates to the field of rail transit technology, and in particular to a ferry trolley used for rail transit maintenance trenches. Background Art

[0002] At present, rail transit (subway, urban rail, high-speed rail, etc.) has become an important part of my country's transportation system. The maintenance of rail vehicles is particularly important under the large vehicle ownership and high operating mileage. The daily maintenance of existing rail vehicles mainly relies on the vehicle depots of various operating units. Most vehicle depots are equipped with maintenance trenches to facilitate maintenance personnel to conduct technical inspections on the running gear and undercarriage equipment of railway vehicles.

[0003] The distance between the two rails of rail transit generally adopts the standard track gauge of 1435 mm, and the width of the maintenance trench is usually about 1.4 meters. It is dangerous for maintenance personnel to cross the maintenance trench directly. Although there are some lifting devices for maintenance trenches in related technologies, these lifting devices are fixed in position and are mainly used for going up and down trenches. If maintenance personnel use them to cross the trench, they need to be in the position where the lifting device is installed, which has poor flexibility and is inconvenient to use. Utility Model Content

[0004] An embodiment of the present application provides a ferry trolley for a rail transit maintenance trench, which is intended to facilitate maintenance personnel to cross the maintenance trench.

[0005] To achieve the above-mentioned purpose, the present application provides a ferry trolley for rail transit maintenance trench, which is used to be arranged in the maintenance trench, and the ferry trolley includes:

[0006] A vehicle frame, located at the opening of the maintenance trench;

[0007] A ferry board is arranged on the top of the frame, and is used for maintenance personnel to step on to cross the maintenance trench; and

[0008] A traveling mechanism is arranged on opposite sides of the frame in the length direction of the maintenance trench, and the traveling mechanism can move on opposite sides of the opening of the maintenance trench along the length direction of the maintenance trench to drive the frame to move along the length direction of the maintenance trench.

[0009] Optionally, the ferry trolley also includes an electrical control box, which is arranged on the frame and located below the ferry, and includes a box body and a power supply unit and a control unit arranged in the box body. The walking mechanism is an electric walking mechanism, which is electrically connected to the power supply unit and the control unit, respectively, and the control unit is used to control the movement of the electric walking mechanism.

[0010] Optionally, the power supply unit includes a battery, and a window communicating with the box body is provided on the ferry board, and the window is blocked by a cover plate detachably provided on the ferry board.

[0011] Optionally, the electric walking mechanism includes two rows of load-bearing wheels and two rows of electric drive wheels, the two rows of load-bearing wheels are rotatably arranged on the frame on opposite sides of the length direction of the maintenance trench, and the two rows of load-bearing wheels can respectively roll and abut against relative tops of the opening of the maintenance trench; the two rows of electric drive wheels are respectively rollably arranged on the frame on opposite sides of the length direction of the maintenance trench, and the two rows of electric drive wheels can respectively roll and abut against relative inner walls of the opening of the maintenance trench, the two rows of electric drive wheels are electrically connected to the power supply unit and the control unit, and the two rows of electric drive wheels can rotate synchronously under the action of the control unit.

[0012] Optionally, the frame is rotatably provided with mounting arms on opposite sides in the length direction of the maintenance trench, the electric drive wheel is rotatably provided at one end of the mounting arm away from the frame, an elastic member is provided between the mounting arm and the frame, and the elastic member provides the mounting arm with elastic force to enable the electric drive wheel to elastically press against the inner wall of the maintenance trench.

[0013] Optionally, the ferry trolley also includes a plurality of position sensing sensors, which are used to be evenly distributed on the ground on both sides of the maintenance trench, and each of the position sensing sensors is electrically connected to the control unit. When the position sensing sensor is triggered, the control unit controls the electric walking mechanism to move to the vicinity of the position sensing sensor.

[0014] Optionally, the ferry trolley also includes an electric lift and a foot switch. The electric lift is arranged at one end of the frame in the length direction of the maintenance trench, and is used for maintenance personnel to go up and down the maintenance trench; the foot switch is arranged on the ferry to control the lifting movement of the lift.

[0015] Optionally, the ferry trolley further includes two obstacle avoidance radars, which are respectively arranged at opposite ends of the frame in the length direction of the maintenance trench and are both electrically connected to the control unit.

[0016] The beneficial effect of the ferry trolley for rail transit maintenance trench provided by the present application is that: compared with the prior art, the ferry trolley of the present application includes a frame, a ferry disposed on the top of the frame, and a running mechanism disposed on opposite sides of the frame in the length direction of the maintenance trench, and the running mechanism can move on opposite sides of the opening of the maintenance trench along the length direction of the maintenance trench to drive the frame and the ferry disposed thereon to move along the length direction of the maintenance trench. Since the ferry trolley can move, it can provide transition support for maintenance personnel to cross the maintenance trench at any position, and has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] in:

[0019] Figure 1 This is a schematic diagram of an embodiment of the present application showing the actual application of a ferry trolley for rail transit maintenance trenches;

[0020] Figure 2 yes Figure 1 AA section view in the figure;

[0021] Figure 3 It is a structural schematic diagram of a ferry trolley shown in an embodiment of the present application;

[0022] Figure 4 It is a partial structural schematic diagram of a ferry trolley shown in an embodiment of the present application;

[0023] Figure 5 It is an exploded view of a ferry trolley shown in one embodiment of the present application.

[0024] Description of main component symbols:

[0025] 1. Maintenance trench; 2. Rails;

[0026] 10. Vehicle frame; 11. Mounting arm; 12. Elastic member;

[0027] 20. Ferry board; 21. Window;

[0028] 30. Traveling mechanism; 31. Load-bearing wheel; 32. Electric drive wheel;

[0029] 40. Electric control box;

[0030] 50. Cover plate;

[0031] 60. Position sensing sensor;

[0032] 70. Electric lift;

[0033] 80. Obstacle avoidance radar. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present application, the present application will be described more comprehensively with reference to the relevant drawings below. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0036] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0038] It should also be noted that, in the embodiments of the present application, the same figure mark is used to represent the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or components as an example. It should be understood that the figure mark also applies to other identical parts or components.

[0039] The embodiment of the present application provides a ferry trolley for rail transit maintenance trenches, such as Figure 1-Figure 2As shown, the ferry trolley is used to be arranged in the maintenance trench 1, and the ferry trolley includes a frame 10, a ferry 20 and a running mechanism 30. The frame 10 is located at the opening of the maintenance trench 1. The ferry 20 is arranged on the top of the frame 10, and the ferry 20 is used for maintenance personnel to step on to cross the maintenance trench 1. The running mechanism 30 is arranged on the opposite sides of the frame 10 in the length direction of the maintenance trench 1, and the running mechanism 30 can move on the opposite sides of the opening of the maintenance trench 1 along the length direction of the maintenance trench 1 to drive the frame 10 to move along the length direction of the maintenance trench 1.

[0040] In the embodiment of the present application, since the ferry trolley can move on the opposite sides of the opening of the maintenance trench 1 along the length direction of the maintenance trench 1, it can provide transition support for maintenance personnel to cross the maintenance trench 1 at any position, and has a simple structure and is easy to use.

[0041] It can be understood that the walking mechanism 30 has at least two rows of rollers, which are respectively arranged on the opposite sides of the frame 10 in the length direction of the maintenance trench 1. The two rows of rollers can be respectively rolled on the bottom of the two steel rails 2 on both sides of the maintenance trench 1, and the movement of the entire ferry trolley is achieved by the rolling of the rollers on the bottom of the rails. Of course, it can be imagined that convex edges extending along the length direction of the maintenance trench 1 can also be provided on the relative inner walls at the opening of the maintenance trench 1, and the two rows of rollers are respectively rolled on the two convex edges, and the movement of the entire ferry trolley is achieved by the rolling of the rollers on the convex edges.

[0042] It should be noted that in order to prevent the ferry trolley from affecting the normal running of the vehicle on the rail 2, Figure 2 As shown, the height of the upper surface of the ferry 20 and the running mechanism 30 are both lower than the height of the rail head of the rail 2.

[0043] In one embodiment, if Figure 5 As shown, the ferry trolley also includes an electric control box 40, which is arranged on the frame 10 and located below the ferry 20. The electric control box 40 includes a box body and a power supply unit and a control unit arranged in the box body. The walking mechanism 30 is an electric walking mechanism, which is electrically connected to the power supply unit and the control unit respectively, and the control unit is used to control the movement of the electric walking mechanism.

[0044] An electrical control box 40 is provided on the ferry trolley. The electrical control box 40 is provided with a power supply unit (such as a battery) and a control unit (such as a controller or a microprocessor). The power supply unit supplies power to the control unit and the electric traveling mechanism. The control unit is used to control the movement of the electric traveling mechanism (such as forward, backward and stop), thereby realizing the electric operation of the ferry trolley.

[0045] In a specific embodiment, the power supply unit includes a battery, and a window 21 connected to the box body is provided on the ferry 20, and the window 21 is blocked by a cover plate 50 detachably provided on the ferry 20. According to this configuration, the cover plate 50 is opened, and the electric control box 40 is conveniently inspected and the battery is replaced through the window 21.

[0046] In a specific embodiment, Figure 1-Figure 3 As shown, the electric walking mechanism includes two rows of load-bearing wheels 31 and two rows of electric driving wheels 32. Specifically, the electric driving wheel 32 includes a hub motor and a wheel rim arranged thereon. The two rows of load-bearing wheels 31 are rotatably arranged on the opposite sides of the frame 10 in the length direction of the maintenance trench 1, and the two rows of load-bearing wheels 31 can respectively roll against the relative tops of the opening of the maintenance trench 1. The load-bearing wheels 31 play a role in supporting the frame 10 and equipment such as the ferry 20 and the electric control box 40 arranged on the frame 10.

[0047] The two rows of electric drive wheels 32 are respectively and rollingly arranged on the opposite sides of the frame 10 in the length direction of the maintenance trench 1, and the two rows of electric drive wheels 32 can respectively roll against the relative inner walls of the opening of the maintenance trench 1. The two rows of electric drive wheels 32 are electrically connected to the power supply unit and the control unit. The power supply unit is used to supply power to the electric drive wheels 32. The two rows of electric drive wheels 32 can rotate synchronously under the action of the control unit, and provide forward power for the ferry trolley by friction with the inner wall of the opening of the maintenance trench 1.

[0048] In a more specific embodiment, Figure 4 and Figure 5 As shown, the frame 10 is rotatably provided with mounting arms 11 on opposite sides in the length direction of the maintenance trench, the electric drive wheel 32 is rotatably provided at one end of the mounting arm 11 away from the frame 10, and an elastic member 12 is provided between the mounting arm 11 and the frame 10. The elastic member 12 provides the mounting arm 11 with elastic force to make the electric drive wheel 32 elastically press against the inner wall of the maintenance trench, so that the electric drive wheel 32 and the inner wall of the maintenance trench are in close contact, thereby increasing the friction between the two. Specifically, the elastic member 12 can be a spring or a spring shock absorber. When a spring shock absorber is used, it can also play a shock absorbing role, so that the ferry trolley moves more smoothly.

[0049] In a specific embodiment, Figure 1 As shown, the board-crossing trolley also includes a plurality of position sensing sensors 60, which are used to be evenly distributed on the ground on both sides of the maintenance trench 1, and each position sensing sensor 60 is electrically connected to the control unit. When the position sensing sensor 60 is triggered, the control unit controls the electric walking mechanism to move to the vicinity of the position sensing sensor 60. With this arrangement, the board-crossing trolley has an automatic calling function, which provides convenience for actual use.

[0050] In order to prevent the position sensing sensor 60 from being triggered by maintenance personnel who are walking normally, it can be set that the position sensing sensor 60 can only be triggered when a person stands in the sensing area of ​​the position sensing sensor 60 and pauses for 5 seconds (the time can be freely set).

[0051] It is understandable that the control unit can also receive control signals through the remote controller, thereby controlling the electric travel mechanism to move forward, backward and stop.

[0052] In a specific embodiment, Figure 2 , Figure 3 and Figure 5 As shown, the ferry trolley also includes an electric lift 70 and a foot switch (not shown in the figure). The electric lift 70 is arranged at one end of the frame 10 in the length direction of the maintenance trench 1, and is used for maintenance personnel to go up and down to inspect the trench 1; the foot switch is arranged on the ferry 20, and is used to control the lifting movement of the lift.

[0053] By setting up the electric lift 70, it is convenient for maintenance personnel to go up and down to inspect the trench 1. Specifically, when in use, the maintenance personnel step on the foot switch located on the ferry 20, and the electric lift 70 is unfolded and lowered. The maintenance personnel can go down to the maintenance trench 1 through the electric lift 70. After the maintenance is completed, the maintenance personnel can go up to the ferry 20 through the electric lift 70, and finally step on the foot switch, and the electric lift 70 is folded up.

[0054] Specifically, the electric lift 70 includes a scissor-type telescopic ladder body and an electric push rod. Its specific structure is the prior art. Please refer to patents CN204354926U car telescopic ladder, CN218581551U new type flip telescopic ladder and CN217871477U telescopic stairs, which will not be repeated here.

[0055] Furthermore, two electric lifts 70 and two foot switches are respectively provided, and the two electric lifts 70 are respectively provided at opposite ends of the frame 10 in the length direction of the maintenance trench 1, and the two foot switches are respectively used to control the lifting and lowering movements of the two electric lifts 70.

[0056] In a specific embodiment, Figure 2 , Figure 3 and Figure 5 As shown, the ferry trolley also includes two obstacle avoidance radars 80, which are respectively arranged at the opposite ends of the frame 10 in the length direction of the maintenance trench 1 and are electrically connected to the control unit. During the movement of the ferry trolley, when the obstacle avoidance radar 80 located on the movement method detects an obstacle in front, the control unit controls the electric walking mechanism to stop moving to avoid collision with the obstacle.

[0057] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A ferry trolley for rail transit maintenance trench, used to be set in the maintenance trench, characterized in that: The ferry trolley comprises: A vehicle frame, located at the opening of the maintenance trench; A ferry board is arranged on the top of the frame, and is used for maintenance personnel to step on to cross the maintenance trench; and A traveling mechanism is arranged on opposite sides of the frame in the length direction of the maintenance trench, and the traveling mechanism can move on opposite sides of the opening of the maintenance trench along the length direction of the maintenance trench to drive the frame to move along the length direction of the maintenance trench.

2. The ferry trolley according to claim 1, characterized in that: The ferry trolley also includes an electrical control box, which is arranged on the frame and located below the ferry. The electrical control box includes a box body and a power supply unit and a control unit arranged in the box body. The walking mechanism is an electric walking mechanism, which is electrically connected to the power supply unit and the control unit respectively, and the control unit is used to control the movement of the electric walking mechanism.

3. The ferry trolley according to claim 2, characterized in that: The power supply unit includes a storage battery, and a window communicating with the box body is arranged on the ferry board, and the window is blocked by a cover plate detachably arranged on the ferry board.

4. The ferry trolley according to claim 2, characterized in that: The electric walking mechanism includes two rows of load-bearing wheels and two rows of electric drive wheels. The two rows of load-bearing wheels are rotatably arranged on the opposite sides of the frame in the length direction of the maintenance trench, and the two rows of load-bearing wheels can respectively roll and abut against the relative tops of the opening of the maintenance trench; the two rows of electric drive wheels are respectively rollably arranged on the opposite sides of the frame in the length direction of the maintenance trench, and the two rows of electric drive wheels can respectively roll and abut against the relative inner walls of the opening of the maintenance trench, and the two rows of electric drive wheels are electrically connected to the power supply unit and the control unit, and the two rows of electric drive wheels can rotate synchronously under the action of the control unit.

5. The ferry trolley according to claim 4, characterized in that: The frame is rotatably provided with mounting arms on opposite sides in the length direction of the maintenance trench, the electric drive wheel is rotatably provided at one end of the mounting arm away from the frame, an elastic member is provided between the mounting arm and the frame, and the elastic member provides the mounting arm with elastic force to enable the electric drive wheel to elastically press against the inner wall of the maintenance trench.

6. The ferry trolley according to any one of claims 2 to 5, characterized in that: The ferry trolley also includes a plurality of position sensing sensors, which are used to be evenly distributed on the ground on both sides of the maintenance trench. Each of the position sensing sensors is electrically connected to the control unit. When the position sensing sensor is triggered, the control unit controls the electric walking mechanism to move to the vicinity of the position sensing sensor.

7. The ferry trolley according to any one of claims 1 to 5, characterized in that: The ferry trolley also includes an electric lift and a foot switch. The electric lift is arranged at one end of the frame in the length direction of the maintenance trench, and is used for maintenance personnel to go up and down the maintenance trench; the foot switch is arranged on the ferry to control the lifting movement of the lift.

8. The ferry trolley according to any one of claims 2 to 5, characterized in that: The ferry trolley also includes two obstacle avoidance radars, which are respectively arranged at opposite ends of the frame in the length direction of the maintenance trench and are both electrically connected to the control unit.

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