Maintenance equipment for bridge and tunnel construction

Abstract

The utility model is applicable to the field of road maintenance, and provides maintenance equipment for bridge and tunnel construction, which comprises an unmanned aerial vehicle main body, a supporting assembly, a first water supply assembly, a horizontal rotating assembly, a vertical pitching assembly, a spray head, a second water supply assembly and a connecting assembly, the limiting rail is fixed on the bracket; according to the utility model, a water tank water supply mode and a water pipe water supply mode are provided and can be flexibly switched according to actual conditions; when an operation area is close to a water source and is convenient to connect with a water pipe, long-time continuous water spraying operation can be realized by adopting the water pipe to supply water, the operation efficiency is improved, and the device is suitable for large-area bridge and tunnel maintenance tasks; when an operation area is far away from a water source or is complex in terrain and inconvenient to connect with a water pipe, the water tank can be used for supplying water, flexible operation is performed by utilizing the maneuverability of the unmanned aerial vehicle without being limited by the position of the water source, and the applicability and operation flexibility of equipment are enhanced.

Description

Technical Field

[0001] The utility model belongs to the field of road maintenance, and particularly relates to a maintenance device for bridge and tunnel construction. Background Technique

[0002] In the field of transportation infrastructure, bridges and tunnels are key components of the road network. To ensure the durability and safety of their structures, road maintenance work is crucial, and water spraying maintenance is an essential daily maintenance measure. Water spraying maintenance can effectively maintain the humidity of the road surface, avoid cracks caused by excessive evaporation of water, and thus extend the service life of the road.

[0003] The traditional water spraying maintenance methods for bridge and tunnel roads mainly rely on manual hand-held spray guns and large sprinkler trucks. When using a manual hand-held spray gun for water spraying operations, workers need to carry out long-term and high-intensity labor inside the bridges and tunnels. This not only has low work efficiency, but also due to the limited physical strength and operation range of people, it is very difficult to carry out comprehensive and uniform water spraying maintenance on some high, narrow areas or complex structural parts. In addition, in relatively enclosed or dangerous environments such as bridges and tunnels, manual operation also has certain safety risks;

[0004] Although large sprinkler trucks can carry a large amount of water for large-area water spraying operations, their use is restricted by many factors. The spaces of bridges and tunnels are usually relatively narrow, and the mobility of large sprinkler trucks is poor, making it difficult to drive and operate flexibly in them. Especially for some areas with curves, large slopes or limited spaces, the sprinkler trucks may not be able to reach or are inconvenient to operate. Moreover, the water spraying range and angle of the sprinkler trucks are relatively fixed, making it difficult to accurately adjust according to the specific needs of different parts of the bridges and tunnels, resulting in insufficient or excessive water spraying in some areas, affecting the maintenance effect;

[0005] In recent years, with the rapid development of drone technology, some enterprises and research institutions have begun to attempt to apply drones to the field of road maintenance. However, some problems still emerge during the actual use of existing road maintenance water spraying drones. On the one hand, the spraying structure direction of most water spraying drones is fixed and cannot be flexibly adjusted according to the actual conditions of bridges and tunnels. For example, when maintaining special parts such as bridge piers, the bottom of the bridge, the top or side walls of tunnels, it is difficult for the fixed-direction spraying structure to accurately spray water onto the target area, resulting in a limited spraying coverage range and greatly reducing the maintenance effect. On the other hand, the existing water supply methods for water spraying drones are single. Either they can only rely on the self-contained water tank for water supply. Due to the limited capacity of the water tank, the drone needs to frequently return to the base to refill water, which greatly reduces the operation efficiency and cannot meet the long-term and large-area maintenance requirements. Or they can only supply water by connecting to an external water pipe, but this method will limit the activity range of the drone, making it unable to operate normally in areas far from the water source or with complex terrain, lacking sufficient mobility and adaptability;

[0006] Therefore, a maintenance device for bridge and tunnel construction is needed to solve the above problems. Summary of the Utility Model

[0007] The purpose of the embodiment of the present utility model is to provide a maintenance device for bridge and tunnel construction to solve the problems raised in the above background technology.

[0008] To achieve the above purpose, the present utility model provides the following technical solutions:

[0009] A maintenance device for bridge and tunnel construction, comprising a drone main body, a support assembly, a first water supply assembly, a horizontal rotation assembly, a vertical pitching assembly, a nozzle, a second water supply assembly and a connection assembly. The support assembly includes a bracket and a limit track. The bracket is fixed at the bottom of the drone main body, and the limit track is fixed on the bracket;

[0010] The first water supply assembly includes a water supply tank, a water inlet pipe and a first solenoid valve. The water supply tank is installed inside the bracket. The water inlet pipe is connected to the water supply tank, and the first solenoid valve is connected to the bottom of the water supply tank;

[0011] The horizontal rotation assembly includes a rotation motor, a rotating disk, a cavity, a bearing, an arc-shaped block and a hose. The rotation motor is installed at the bottom of the bracket. The rotating disk is rotatably connected inside the bracket through the bearing. The rotating disk is connected to the output shaft of the rotation motor. The bottom of the rotating disk is connected to the arc-shaped block. The arc-shaped block is arranged inside the limit track. The limit track is connected inside the support frame. The cavity is arranged inside the rotating disk. One end of the hose is connected to the rotating disk;

[0012] The vertical pitching assembly includes a pitching motor, a rotating rod, and a rotating tube. The pitching motor is installed on the rotating disk. The rotating rod is connected to the output shaft of the pitching motor. The rotating tube is connected to the rotating rod, and the rotating tube is connected to the other end of the hose.

[0013] The spray head is connected to the other end of the rotating tube.

[0014] The second water supply assembly includes a connecting seat, a water supply pipe, and a second solenoid valve. The connecting seat is installed inside the bracket, and the water supply pipe is connected to the connecting seat.

[0015] The connecting assembly includes a connecting pipe and a sealing bearing. One end of the connecting pipe is connected to the water supply pipe, and the other end of the connecting pipe is connected to the rotating tube through the sealing bearing. The water supply pipe is connected to the connecting pipe through the second solenoid valve.

[0016] In a further technical solution, the cavity is connected to the rotating tube through a hose, and the rotating tube is connected to the spray head.

[0017] In a further technical solution, both the rotating motor and the pitching motor are stepper motors.

[0018] In a further technical solution, the limiting track plays a role in limiting and guiding the rotation of the rotating disk.

[0019] In a further technical solution, the sealing bearing ensures the sealing performance and rotational flexibility of the connection between the connecting pipe and the rotating tube.

[0020] In a further technical solution, the cavity is connected to the connecting pipe. The connecting pipe is connected to the water supply tank through a first solenoid valve and connected to the water supply pipe through a second solenoid valve.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] With the present utility model, through the horizontal rotation assembly and the vertical pitching assembly, precise angle adjustment of the spray head in the horizontal and vertical directions can be achieved. In bridge maintenance, the spraying direction can be flexibly adjusted for different parts such as bridge piers and the bottom of the bridge to ensure that water can be accurately sprayed onto the target area. During tunnel maintenance, it is also convenient to perform spraying operations on special positions such as the top and side walls of the tunnel, greatly expanding the spraying coverage range and improving the uniformity and comprehensiveness of the maintenance effect.

[0023] The utility model has flexible and diverse water supply methods: it has two water supply methods, namely water tank water supply and water pipe water supply, and can be flexibly switched according to the actual situation; when the operation area is close to the water source and it is convenient to connect the water pipe, water pipe water supply can be adopted to achieve long-term continuous spraying operation, improve the operation efficiency, and is suitable for large-area bridge and tunnel maintenance tasks; when the operation area is far from the water source or the terrain is complex and it is not convenient to connect the water pipe, water tank water supply can be adopted, and the mobility of the unmanned aerial vehicle can be used for flexible operation, which is not restricted by the water source position, enhancing the applicability and operation flexibility of the equipment;

[0024] In the utility model, the nozzle can adjust the spraying range and shape according to different maintenance requirements; for large-area road surfaces, the nozzle can be adjusted to fan-shaped spraying to expand the coverage area; for some narrow gaps or specific small areas, the nozzle can be adjusted to circular spraying to improve the spraying accuracy, further improving the pertinence and flexibility of spraying maintenance;

[0025] In the utility model, the unmanned aerial vehicle body adopts a multi-rotor unmanned aerial vehicle, which has good flight stability and mobility, and can fly flexibly in complex environments such as bridges and tunnels; it can easily cope with the curves, slopes of bridges and the narrow spaces in tunnels, and accurately reach the parts that need to be maintained, improving the efficiency and quality of maintenance operations.

[0026] In order to more clearly elaborate the structural features and functions of the utility model, the following will combine the attached drawings and specific embodiments to detail the utility model. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of the front view three-dimensional of the utility model;

[0028] Figure 2 is a schematic structural diagram of the partial bottom view three-dimensional of the utility model;

[0029] Figure 3 is a schematic sectional structural diagram of the partial side view three-dimensional of the utility model;

[0030] Figure 4 is a schematic structural diagram of the partial top view three-dimensional of the utility model.

[0031] In the figure: 1, unmanned aerial vehicle main body; 2, support assembly; 21, bracket; 22, limit track; 3, first water supply assembly; 31, water supply tank; 32, water inlet pipe; 33, first solenoid valve; 4, horizontal rotation assembly; 41, rotation motor; 42, rotating disk; 43, cavity; 44, bearing; 45, arc-shaped block; 46, hose; 5, vertical pitching assembly; 51, pitching motor; 52, rotating rod; 53, rotating pipe; 6, spray head; 7, second water supply assembly; 71, connecting seat; 72, water supply pipe; 73, second solenoid valve; 8, connecting assembly; 81, connecting pipe; 82, sealing bearing. Detailed implementation manners

[0032] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0033] The following describes in detail the specific implementation of the present utility model in conjunction with specific embodiments.

[0034] Please refer to Figures 1-4 , the present invention provides a maintenance device for bridge and tunnel construction, including an unmanned aerial vehicle main body 1, a support assembly 2, a first water supply assembly 3, a horizontal rotation assembly 4, a vertical pitching assembly 5, a spray head 6, a second water supply assembly 7 and a connecting assembly 8. The unmanned aerial vehicle main body 1 adopts a multi-rotor unmanned aerial vehicle. A plurality of rotor motors drive the rotors to rotate at high speed. When the rotors rotate, they push the air downward. According to Newton's third law, the air will generate an upward reaction force on the rotors that is equal in magnitude and opposite in direction, that is, lift. By precisely controlling the rotation speed of each rotor motor through an electronic speed controller, the magnitude of the lift generated by each rotor can be changed. When it is necessary for the unmanned aerial vehicle to ascend, increase the rotation speed of all rotor motors simultaneously so that the total lift generated by the rotors is greater than the gravity of the unmanned aerial vehicle. When it is necessary for the unmanned aerial vehicle to fly forward, increase the rotation speed of the rear rotor motors so that the lift generated by the rear rotors is greater than that of the front rotors, thereby causing the unmanned aerial vehicle to tilt forward and move forward. Similarly, backward, turning, hovering and other flight actions can be achieved.

[0035] The support assembly 2 includes a bracket 21 and a limit track 22. The bracket 21 is fixed to the bottom of the unmanned aerial vehicle main body 1 to provide basic support for the device, and the limit track 22 is fixed to the bracket 21;

[0036] The first water supply assembly 3 includes a water supply tank 31, a water inlet pipe 32 and a first solenoid valve 33. The water supply tank 31 is installed inside the bracket 21. The water inlet pipe 32 is connected to the water supply tank 31. The water supply tank 31 is a sealed container for storing maintenance water. The first solenoid valve 33 is connected to the bottom of the water supply tank 31, and the first solenoid valve 33 is used to control the outflow of water in the tank;

[0037] The horizontal rotation assembly 4 includes a rotation motor 41, a rotating disk 42, a cavity 43, a bearing 44, an arc-shaped block 45, and a hose 46. The rotation motor 41 is installed at the bottom of the bracket 21. The rotating disk 42 is rotatably connected within the bracket 21 through the bearing 44. The rotating disk 42 is connected to the output shaft of the rotation motor 41. The bottom of the rotating disk 42 is connected to the arc-shaped block 45. The arc-shaped block 45 is arranged within the limit track 22. The limit track 22 is connected within the support frame. The limit track 22 plays a role in limiting and guiding the rotation of the rotating disk 42. The cavity 43 is arranged within the rotating disk 42. One end of the hose 46 is connected to the rotating disk 42;

[0038] The vertical pitching assembly 5 includes a pitching motor 51, a rotating rod 52, and a rotating tube 53. The pitching motor 51 is installed on the rotating disk 42. The rotating rod 52 is connected to the output shaft of the pitching motor 51. The rotating tube 53 is connected to the rotating rod 52. The rotating tube 53 is connected to the other end of the hose 46. Both the rotation motor 41 and the pitching motor 51 are stepper motors;

[0039] The nozzle 6 is connected to the other end of the rotating tube 53. The working pitching motor 51 drives the rotating tube 53 through the rotating rod 52 to achieve the up-and-down pitching movement, thereby adjusting the angle of the nozzle 6 in the vertical direction;

[0040] The second water supply assembly 7 includes a connection seat 71, a water supply pipe 72, and a second solenoid valve 73. The connection seat 71 is installed within the bracket 21. The water supply pipe 72 is connected to the connection seat 71. The second solenoid valve 73 is connected to the water supply pipe 72 and is used to control the inflow of external water source;

[0041] The connection assembly 8 includes a connection pipe 81 and a sealing bearing 82. One end of the connection pipe 81 is connected to the water supply pipe 72. The other end of the connection pipe 81 is connected to the rotating tube 53 through the sealing bearing 82. The water supply pipe 72 is connected to the connection pipe 81 through the second solenoid valve 73. The sealing bearing 82 ensures the sealing performance and rotational flexibility of the connection between the connection pipe 81 and the rotating tube 53;

[0042] The cavity 43 is connected to the rotating tube 53 through the hose 46. The rotating tube 53 is connected to the nozzle 6. The cavity 43 is connected to the connection pipe 81. The connection pipe 81 is connected to the water supply tank 31 through the first solenoid valve 33. The connection pipe 81 is connected to the water supply pipe 72 through the second solenoid valve 73.

[0043] The working principle and usage process of the present invention:

[0044] When conducting bridge maintenance and adopting the water tank water supply mode:

[0045] Preparation stage: First, check each component of the UAV body 1 to ensure that the rotor motors, rotors, brackets 21, etc. are all in normal condition. Confirm that the water supply tank 31 is filled with water, and at the same time check that the first solenoid valve 33 and the second solenoid valve 73 are in the closed state. According to the needs of bridge maintenance, adjust the nozzle 6 to an appropriate spraying range and shape. For example, for a large area of the bridge pavement, the nozzle 6 can be adjusted to a fan-shaped spraying mode.

[0046] Takeoff and flight: Start the control system of the UAV. The rotor motors start to work, driving the rotors to rotate at high speed to generate lift and make the UAV take off. The operator controls the UAV to fly to the part of the bridge that needs maintenance through the remote control or the preset flight route. During the flight, the multi-rotor UAV, relying on its good flight stability and maneuverability, can smoothly cope with complex terrains such as the bends and slopes of the bridge and accurately reach the designated position.

[0047] Spraying operation: When the UAV reaches the designated position, open the first solenoid valve 33. Since the connecting pipe 81 can be composed of a conduit and a water pump, the top of the conduit is connected to the first solenoid valve 33 through the water pump, and the conduit is connected to the second solenoid valve 73. The water in the water supply tank 31 flows out from the water inlet pipe 32 under the action of gravity or water pump pressure, enters the rotating pipe 53 through the hose 46, and finally sprays out from the nozzle 6. At the same time, according to the needs of different parts of the bridge, start the rotating motor 41 of the horizontal rotation assembly 4. Its output shaft drives the rotating disk 42 to rotate horizontally, thereby adjusting the angle of the nozzle 6 in the horizontal direction. For example, for the bridge pier, the nozzle 6 can be aligned with the bridge pier. Start the pitching motor 51 of the vertical pitching assembly 5, drive the rotating pipe 53 to pitch up and down through the rotating rod 52, and adjust the angle of the nozzle 6 in the vertical direction to ensure that the water can be evenly sprayed on each part of the bridge pier.

[0048] End of operation: When the water in the water supply tank 31 is about to run out or after completing the maintenance operation in the current area, close the first solenoid valve 33 and control the UAV to return to the base for water filling or water tank replacement operation.

[0049] When using the water pipe water supply mode for tunnel maintenance:

[0050] Preparation stage: Check the status of each component of the UAV body 1 and the spraying structure to ensure normal operation. Connect the external water pipe to the connection seat 71 and check the firmness of the connection. Close the first solenoid valve 33 and open the second solenoid valve 73 to confirm normal water flow in the water pipe. According to the characteristics of tunnel maintenance, adjust the nozzle 6 to a suitable spraying range and shape. For example, for the tunnel top and side walls, the nozzle 6 can be adjusted to a smaller circular spraying to improve the spraying accuracy.

[0051] Takeoff and flight: Start the drone, take off and fly it to the position in the tunnel that needs maintenance; when flying in the tunnel, the multi-rotor design of the drone enables it to fly flexibly in a narrow space, effectively avoiding collision with the tunnel wall and smoothly reaching the designated maintenance area;

[0052] Water spraying operation: After reaching the designated position, adjust the direction of the nozzle 6 through the horizontal rotation assembly 4 and the vertical pitching assembly 5 according to the requirements of different parts of the tunnel; for the top of the tunnel, start the pitching motor 51 to make the rotating pipe 53 pitch upward and align the nozzle 6 with the top; for the side wall of the tunnel, start the rotating motor 41 to make the rotating disk 42 rotate horizontally and adjust the horizontal angle of the nozzle 6; at the same time, water from an external water source flows into the rotating pipe 53 through the water supply pipe 72 and the connecting pipe 81 and then sprays out from the nozzle 6 to perform water spraying maintenance on the top and side walls of the tunnel;

[0053] End of operation: After completing the maintenance operation, close the second solenoid valve 73, disconnect the connection of the external water pipe, and control the drone to return to the parking position.

[0054] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A maintenance device for bridge and tunnel construction, comprising a drone main body (1), a support assembly (2), a first water supply assembly (3), a horizontal rotation assembly (4), a vertical pitching assembly (5), a spray head (6), a second water supply assembly (7) and a connection assembly (8), characterized in that: The support assembly (2) includes a bracket (21) and a limit track (22), the bracket (21) is fixed to the bottom of the drone main body (1), and the limit track (22) is fixed to the bracket (21); The first water supply assembly (3) includes a water supply tank (31), a water inlet pipe (32) and a first solenoid valve (33), the water supply tank (31) is installed in the bracket (21), the water inlet pipe (32) is connected to the water supply tank (31), and the first solenoid valve (33) is connected to the bottom of the water supply tank (31); The horizontal rotation assembly (4) includes a rotation motor (41), a rotating disk (42), a cavity (43), a bearing (44), an arc-shaped block (45) and a hose (46), the rotation motor (41) is installed at the bottom of the bracket (21), the rotating disk (42) is rotatably connected to the bracket (21) through the bearing (44), the rotating disk (42) is connected to the output shaft of the rotation motor (41), the bottom of the rotating disk (42) is connected to the arc-shaped block (45), the arc-shaped block (45) is arranged in the limit track (22), the limit track (22) is connected in the support frame, the cavity (43) is arranged in the rotating disk (42), and one end of the hose (46) is connected to the rotating disk (42); The vertical pitching assembly (5) includes a pitching motor (51), a rotating rod (52) and a rotating tube (53), the pitching motor (51) is installed on the rotating disk (42), the rotating rod (52) is connected to the output shaft of the pitching motor (51), the rotating tube (53) is connected to the rotating rod (52), and the rotating tube (53) is connected to the other end of the hose (46); The spray head (6) is connected to the other end of the rotating tube (53); The second water supply assembly (7) includes a connection seat (71), a water supply pipe (72) and a second solenoid valve (73), the connection seat (71) is installed in the bracket (21), and the water supply pipe (72) is connected to the connection seat (71); The connection assembly (8) includes a connection pipe (81) and a seal bearing (82), one end of the connection pipe (81) is connected to the water supply pipe (72), the other end of the connection pipe (81) is connected to the rotating tube (53) through the seal bearing (82), and the water supply pipe (72) is connected to the connection pipe (81) through the second solenoid valve (73).

2. The maintenance equipment for bridge and tunnel construction according to claim 1, characterized in that: The cavity (43) is communicated with the rotating tube (53) through the hose (46), and the rotating tube (53) is communicated with the spray head (6).

3. The maintenance equipment for bridge and tunnel construction according to claim 1, characterized in that: Both the rotation motor (41) and the pitching motor (51) are stepper motors.

4. The maintenance equipment for bridge and tunnel construction according to claim 1, characterized in that: The limit track (22) plays a role in limiting and guiding the rotation of the rotating disk (42).

5. The maintenance equipment for bridge and tunnel construction according to claim 1, characterized in that: The seal bearing (82) ensures the sealing performance and rotational flexibility of the connection between the connection pipe (81) and the rotating tube (53).

6. The maintenance equipment for bridge and tunnel construction according to claim 1, characterized in that: The cavity (43) communicates with a connecting pipe (81), the connecting pipe (81) communicates with a water supply tank (31) through a first electromagnetic valve (33), and the connecting pipe (81) communicates with a water supply pipe (72) through a second electromagnetic valve (73).

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