New energy power supply maintenance trolley without external cable
The cableless maintenance trolley, powered by lithium iron phosphate batteries from a new energy source, solves the problems of disordered cable winding and aging leakage during tunnel construction, enabling autonomous movement of the equipment and safe construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG GAOFEI BRIDGE MACHINERY CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-04-17
AI Technical Summary
The existing tunnel maintenance trolleys are connected to the power distribution cabinet by manually pulling cables during construction, which results in the cables being coiled in a disorderly manner, restricting the construction area, posing risks of aging and leakage, and affecting construction safety.
The maintenance trolley uses a new energy power source and has no external cable. It uses lithium iron phosphate batteries as the power source and supports 8-10 hours of continuous operation. It eliminates the need for external cables and achieves autonomous movement of the equipment through electric walking wheels and steering motors.
This expanded the scope of construction, avoided the risks of cable aging and leakage, and ensured the normal operation of equipment and the safety of construction personnel.
Smart Images

Figure CN224134653U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a maintenance trolley for tunnel construction, and in particular to a maintenance trolley powered by a new energy source without external cables. Background Technology
[0002] Currently, existing tunnel maintenance trolleys are used in tunnel construction, typically employing fixed-position power distribution cabinets. Because the connection between the maintenance trolley and the cabinet is fixed, the trolley connects to the cabinet manually by pulling cables. This often results in the cables being haphazardly coiled and pulled on the ground. During construction, the maintenance trolley drags or pulls these coiled or pulled cables, limiting the trolley's operational range and affecting the movement of other equipment. Furthermore, long-term use of cables poses risks of aging, damaged sheaths, or leakage due to water damage, potentially causing injury to workers and losses for the construction company. In light of these factors, a new energy-powered, cable-free maintenance trolley is proposed. Utility Model Content
[0003] The purpose of this invention is to overcome the limitations of existing tunnel maintenance trolleys, which require manual pulling of cables to connect to the power distribution cabinet during tunnel construction. The trolley's movement, involving dragging and pulling cables, restricts the construction area. Furthermore, long-term use of cables poses risks of aging, leakage, and even injury to construction workers. This invention provides a new energy-powered, cable-free maintenance trolley. This cable-free maintenance trolley uses lithium iron phosphate batteries as its power source, which can support 8-10 hours of continuous operation. The absence of external cables avoids the disorderly coiling and pulling of cables on the ground, ensuring the normal operation of the equipment. It also expands the operating range of the maintenance trolley, ensuring the normal operation of other equipment and the safety of construction personnel.
[0004] To achieve the above objectives, this utility model adopts the following technical solution: A new energy power supply cable-free maintenance trolley, comprising: a maintenance trolley, a water spray maintenance pipe, a nozzle, a pipe support rod, an electric walking wheel device, walking wheels, a walking wheel motor, a steering motor, a battery cabinet, a control cabinet, a control center, a signal module, a water tank, a water pump, a pressurized water pipe, a series pipe, a trolley frame, a power distribution box, an execution module board, a walking execution module, a steering execution module, and a water pump execution module; a pair of trolley frames are set at both ends of the maintenance trolley, and the top of the pair of trolley frames is set as a construction platform, with the top and both ends of the construction platform... At least three water spraying and curing pipes are installed in the middle section. Pipe support rods are installed between the water spraying and curing pipes on the top and sides of the construction platform. The three water spraying and curing pipes are evenly distributed around the upper part and sides of the curing trolley. Sprinklers are evenly distributed on the outside of the water spraying and curing pipes. A series pipe is connected in series between the three water spraying and curing pipes. A pair of bottom beams are installed at the lower ends of both sides of a pair of trolley frames. Two pairs of electric walking wheel devices are installed at both ends of the bottom beams. A pair of steering wheels are installed on the rear end of the pair of electric walking wheel devices. A water tank is installed on the bottom beam on one side. A water pump is installed in the water tank. A pressurized water pipe is installed between the water pump and the inlet end of the series pipe.
[0005] A battery cabinet is installed on the outer rear end of the vehicle frame, housing a battery pack made of lithium iron phosphate batteries. A power distribution box is installed on the inner side of the vehicle frame, containing an execution module board. A power circuit connects the execution module board to the battery pack. A control cabinet is installed on one side of the battery cabinet, housing a control center. A control panel is installed on one side of the control center, with a signal module at the top. A signal line connects the signal module to the execution module board. The signal module is used for signal transmission between the control center and the execution module board.
[0006] The upper part of the two pairs of electric walking wheel devices is set as a wheel frame, and the walking wheel is set in the wheel frame. The walking wheel motor is set in the middle of the inner side of the walking wheel. The upper end of the wheel frame of a pair of steering wheels is set as a pair of steering motors. The pair of steering motors, the two pairs of walking wheel motors, and a water pump are respectively connected to the execution module board with execution lines.
[0007] The upper part of the execution module board is set as the power supply, and a set of execution modules is set below the power supply. The set of execution modules includes two pairs of walking execution modules, one pair of steering execution modules, and one water pump execution module. Power circuits are set between the power supply and the two pairs of walking execution modules, one pair of steering execution modules, and one water pump execution module. Control signal lines are set between the signal module and the two pairs of walking execution modules, one pair of steering execution modules, and one water pump execution module. The signal module is used to send execution signals.
[0008] Two pairs of walking actuators are connected to two pairs of walking wheel motors via execution lines, one pair of steering actuators is connected to one pair of steering motors via execution lines, and one water pump actuator is connected to the water pump via execution lines. The two pairs of walking actuators are used to control the operation of the two pairs of walking wheel motors, the one pair of steering actuators is used to control the operation of the one pair of steering motors, and the water pump actuator is used to control the start and stop of the water pump.
[0009] Beneficial effects: This utility model of a cable-free maintenance trolley uses lithium iron phosphate batteries as its power source, and the lithium iron phosphate battery pack can support 8-10 hours of continuous operation; it eliminates the need for external cables, avoiding the disorderly coiling and pulling of cables on the ground, and ensuring the normal operation of the equipment; it expands the operating range of the maintenance trolley, ensures the normal operation of other equipment, and ensures the safety of construction personnel. Attached Figure Description
[0010] The present invention will be further described below with reference to the accompanying drawings:
[0011] Figure 1 This is a schematic diagram of the overall assembly structure;
[0012] Figure 2 yes Figure 1 A schematic diagram of the side view structure;
[0013] Figure 3 yes Figure 2 A partial structural diagram of the control circuit;
[0014] Figure 4 yes Figure 3 A partial structural diagram of the execution circuit module;
[0015] Figure 1 , 2 Components 1, 2, and 3: 1. Maintenance trolley; 2. Spray water maintenance pipe; 3. Nozzle; 4. Pipe support rod; 5. Electric walking wheel device; 6. Walking wheel; 7. Walking wheel motor; 8. Steering motor; 9. Battery cabinet; 10. Control cabinet; 11. Control center; 12. Signal module; 13. Water tank; 14. Water pump; 15. Pressure water pipe; 16. Series pipe; 17. Trolley frame; 18. Power distribution box; 19. Execution module board; 10. Walking execution module; 11. Steering execution module; 12. Water pump execution module; 13. Detailed Implementation
[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0017] A pair of trolley frames 8 are installed at both ends of the maintenance trolley 1. The top of the pair of trolley frames 8 is set as a construction platform. At least three water spraying maintenance pipes 2 are installed at the top, both ends and the middle of the sides of the construction platform. Pipe support rods 3 are installed between the water spraying maintenance pipes 2 at the top and both sides of the construction platform. The three water spraying maintenance pipes 2 are evenly distributed around the upper part and both sides of the maintenance trolley 1. Spray nozzles 2-1 are evenly distributed on the outside of the water spraying maintenance pipes 2. A series pipe 7-3 is connected in series between the three water spraying maintenance pipes 2. A pair of bottom beams are installed at the lower ends of both sides of the pair of trolley frames 8. Two pairs of electric walking wheel devices 4 are installed at both ends of the bottom beams. A pair of steering wheels are installed at the rear end of the pair of electric walking wheel devices 4. A water tank 7 is installed on the bottom beam on one side. A water pump 7-1 is installed in the water tank 7. A pressurized water pipe 7-2 is installed between the water pump 7-1 and the water inlet of the series pipe 7-3.
[0018] A battery cabinet 5 is installed on the outer rear end of the vehicle frame 8, and a battery pack is installed in the battery cabinet 5. The battery pack is a lithium iron phosphate battery. A power distribution box 9 is installed on the inner side of the vehicle frame 8, and an execution module board 9-1 is installed in the power distribution box 9. A power circuit is installed between the execution module board 9-1 and the battery pack. A control cabinet 6 is installed on one side of the battery cabinet 5, and a control center 6-1 is installed in the control cabinet 6. A control panel is installed on one side of the control center 6-1. A signal module 6-2 is installed on the upper end of the control center 6-1, and a signal line is installed between the signal module 6-2 and the execution module board 9-1. The signal module 6-2 is used for signal transmission between the control center 6-1 and the execution module board 9-1.
[0019] The upper part of the two pairs of electric walking wheel devices 4 is respectively set as wheel frame, and the walking wheel 4-1 is respectively set in the wheel frame. The walking wheel motor 4-2 is set in the middle of the inner side of the walking wheel 4-1. The upper end of the wheel frame of a pair of steering wheels is respectively set as a pair of steering motors 4-3. The pair of steering motors 4-3, the two pairs of walking wheel motors 4-2, and a water pump 7-1 are respectively connected to the execution module board 9-1 with execution lines.
[0020] The upper part of the execution module board 9-1 is set as the power supply, and a set of execution modules is set below the power supply. The set of execution modules includes two pairs of walking execution modules 9-1-1, one pair of steering execution modules 9-1-2, and one water pump execution module 9-1-3. Power supply circuits are set between the power supply and the two pairs of walking execution modules 9-1-1, one pair of steering execution modules 9-1-2, and one water pump execution module 9-1-3. Control signal lines are set between the signal module 6-2 and the two pairs of walking execution modules 9-1-1, one pair of steering execution modules 9-1-2, and one water pump execution module 9-1-3. The signal module 6-2 is used to send execution signals.
[0021] Two pairs of walking actuator modules 9-1-1 are connected to two pairs of walking wheel motors 4-2 respectively, and a pair of steering actuator modules 9-1-2 are connected to a pair of steering motors 4-3. A water pump actuator module 9-1-3 is connected to a water pump 7-1. The two pairs of walking actuator modules 9-1-1 are used to control the operation of the two pairs of walking wheel motors 4-2, the pair of steering actuator modules 9-1-2 are used to control the operation of the pair of steering motors 4-3, and the water pump actuator module 9-1-3 is used to control the start and stop of the water pump 7-1.
Claims
1. A new energy power supply cableless maintenance trolley, comprising: a maintenance trolley (1), a water spray maintenance pipe (2), a nozzle (2-1), a pipe support rod (3), an electric walking wheel device (4), walking wheels (4-1), a walking wheel motor (4-2), a steering motor (4-3), a battery cabinet (5), a control cabinet (6), a control center (6-1), a signal module (6-2), a water tank (7), a water pump (7-1), a pressurized water pipe (7-2), a series pipe (7-3), a trolley frame (8), a power distribution box (9), an execution module board (9-1), a walking execution module (9-1-1), a steering execution module (9-1-2), and a water pump execution module (9-1-3); characterized in that: A pair of trolley frames (8) are set at both ends of the maintenance trolley (1). The top of the pair of trolley frames (8) is set as a construction platform. At least three water spraying maintenance pipes (2) are set at the top and both ends and the middle of the construction platform. Pipe support rods (3) are set between the water spraying maintenance pipes (2) at the top and both sides of the construction platform. The three water spraying maintenance pipes (2) are evenly distributed around the upper part and both sides of the maintenance trolley (1). Spray nozzles (2-1) are evenly distributed on the outside of the water spraying maintenance pipes (2). A series pipe (7-3) is set in series between the three water spraying maintenance pipes (2). A pair of bottom beams are set at the lower ends of both sides of the pair of trolley frames (8). Two pairs of electric walking wheel devices (4) are set at the lower ends of the pair of bottom beams. A pair of steering wheels are set at the rear end of the pair of electric walking wheel devices (4). A water tank (7) is set on the bottom beam on one side. A water pump (7-1) is set in the water tank (7). A pressure water pipe (7-2) is set between the water pump (7-1) and the water inlet of the series pipe (7-3).
2. The new energy power source maintenance trolley without external cable according to claim 1, characterized in that: A battery cabinet (5) is installed on the outer rear end of the vehicle frame (8). A battery pack is installed in the battery cabinet (5). The battery pack is a lithium iron phosphate battery. A power distribution box (9) is installed on the inner side of the vehicle frame (8). An execution module board (9-1) is installed in the power distribution box (9). A power circuit is installed between the execution module board (9-1) and the battery pack. A control cabinet (6) is installed on one side of the battery cabinet (5). A control center (6-1) is installed in the control cabinet (6). A control panel is installed on one side of the control center (6-1). A signal module (6-2) is installed on the upper end of the control center (6-1). A signal line is installed between the signal module (6-2) and the execution module board (9-1).
3. The new energy power source maintenance trolley without external cable according to claim 1, characterized in that: The upper part of the two pairs of electric walking wheel devices (4) is respectively set as wheel frame, and the walking wheel (4-1) is respectively set in the wheel frame. The walking wheel motor (4-2) is set in the middle of the inner side of the walking wheel (4-1); the upper end of the wheel frame of a pair of steering wheels is respectively set as a pair of steering motors (4-3). The pair of steering motors (4-3), the two pairs of walking wheel motors (4-2), and a water pump (7-1) are respectively connected to the execution module board (9-1) with execution lines. The upper part of the execution module board (9-1) is set as the power supply, and a set of execution modules is set below the power supply. The set of execution modules includes two pairs of walking execution modules (9-1-1), one pair of steering execution modules (9-1-2), and one water pump execution module (9-1-3). The power supply is connected to the two pairs of walking execution modules (9-1-1), one pair of steering execution modules (9-1-2), and one water pump execution module (9-1-3) through power circuits. The signal module (6-2) is connected to the two pairs of walking execution modules (9-1-1), one pair of steering execution modules (9-1-2), and one water pump execution module (9-1-3) through control signal lines.
4. The new energy power source maintenance trolley without external cable according to claim 1, characterized in that: Two pairs of walking execution modules (9-1-1) are connected to two pairs of walking wheel motors (4-2) respectively, and a pair of steering execution modules (9-1-2) are connected to a pair of steering motors (4-3). A water pump execution module (9-1-3) is connected to a water pump (7-1).