A trolley for surface treatment of tunnel lining

Abstract

This utility model discloses a trolley for surface treatment of tunnel lining, relating to the field of tunnel construction technology. It includes a support frame and a trolley base. A trolley frame is mounted on the top of the trolley base. A circulating pump uses an outlet pipe to transport water through a guide pipe to the inlet pipe, and then sequentially to the mounting plate. Multiple spray nozzles spray the tunnel lining surface for curing. Multiple first flow meters and gate valves can be controlled by a control system to adjust the range and number of spray nozzles according to the required spraying distance inside the tunnel. A filter screen can transport excess water from the curing spray and accumulated water in the tunnel through a circulating outlet pipe and a conveying pipe to a circulating inlet pipe, which then enters a water storage tank, forming a circulating curing process. A balancing valve can adjust the balanced flow rate of water in the circulating pipe and conveying pipe, achieving a good balanced usage effect. A check valve and a second flow meter can accurately adjust the water flow rate to prevent backflow.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to a trolley for surface treatment of tunnel lining. Background Technology

[0002] As a crucial component of modern transportation infrastructure, tunnel engineering's construction quality directly impacts the safety and efficiency of transportation. After tunnel construction, the curing of the lining structure (i.e., the tunnel's inner wall) is paramount. After concrete lining is poured and formed, it requires a reasonable curing period to allow for full hydration under suitable temperature and humidity conditions, achieving the designed strength and durability. Early moist curing, in particular, is essential for preventing concrete cracking, improving impermeability, and enhancing long-term strength.

[0003] Traditional tunnel lining maintenance methods typically rely on manual watering or the use of mobile water spraying equipment. However, manual watering is labor-intensive and inefficient, making it difficult to ensure uniformity and timeliness of maintenance. Especially in long-distance, large-section tunnels, the maintenance effect is often unsatisfactory. Although mobile water spraying equipment is an improvement over manual methods, it still requires frequent movement and adjustment, making operation complex. Moreover, the water utilization rate is low, which can easily lead to water waste. In addition, the internal environment of tunnels is usually quite complex, posing certain safety risks. Frequent manual operations also increase the difficulty of safety management.

[0004] While some existing tunnel maintenance trolleys have achieved automated spraying, there is still room for improvement in terms of system stability, water resource recycling, flow control accuracy, and equipment protection. They cannot effectively collect and recycle excess water generated during the maintenance process to achieve water conservation and environmental protection. When spraying and maintaining the top lining surface inside the tunnel, excess water falls to the bottom of the tunnel, resulting in wasted water resources.

[0005] To address the above problems, it is necessary to design a trolley for surface treatment of tunnel lining, thereby overcoming these issues. Utility Model Content

[0006] The main objective of this invention is to provide a trolley for surface treatment of tunnel lining, which can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A trolley for surface treatment of tunnel lining includes a supporting moving frame and a trolley base. A trolley frame is provided on the top of the trolley base, and multiple reinforcing ribs are fixedly connected to the inner side of the trolley frame.

[0009] A water storage tank is located at one end of the trolley base. An outlet pipe is installed at the end of the water storage tank away from the trolley base. A regulating valve is installed at one end of the outlet pipe. A circulation pump is installed at the end of the outlet pipe away from the water storage tank. A connecting pipe is installed at the end of the circulation pump away from the outlet pipe. A guide pipe is installed at one end of the connecting pipe. A sealing element is installed at the top of the guide pipe. A pressure detector is installed at one end of the sealing element. An inlet pipe is installed at the end of the guide pipe away from the connecting pipe. An installation plate is installed at the end of the inlet pipe away from the guide pipe. A spray nozzle is opened at the top of the installation plate. A filter screen is installed on the inner side of the installation plate.

[0010] As a preferred embodiment of this utility model, a first flow meter is installed at one end of the outer wall of the inlet pipe, a gate valve is installed at the end of the outer wall of the inlet pipe away from the pressure detector, a circulating inlet pipe is installed at the end of the circulating pump away from the connecting pipe, a check valve (20) is installed at one end of the outer wall of the circulating inlet pipe, a second flow meter is installed at the end of the circulating inlet pipe near the check valve, a delivery pipe is installed at the end of the circulating inlet pipe near the end that drives the second flow meter, a connector is installed at the end of the delivery pipe away from the second flow meter, a circulating pipe is installed at the end of the connector away from the end that drives the delivery pipe, a balancing valve is installed at the end of the outer wall of the circulating pipe near the connector, and multiple circulating outlet pipes are installed at the end of the circulating pipe near the mounting plate.

[0011] As a preferred embodiment of this utility model, the supporting movable frame is threadedly fixedly connected to the trolley base, the trolley base is threadedly fixedly connected to the trolley frame, the trolley base is fixedly connected to the water storage tank, and the water storage tank is threadedly fixedly connected to the water outlet pipe.

[0012] As a preferred embodiment of this utility model, the water outlet pipe is rotatably connected to the regulating valve, the circulating pump is rotatably connected to the connecting pipe, and the connecting pipe is threadedly fixed to the water guide pipe.

[0013] As a preferred embodiment of this utility model, the water guide pipe is threadedly fixedly connected to the water inlet pipe through a sealing element, the sealing element is threadedly fixedly connected to the pressure detector, and the water inlet pipe is threadedly fixedly connected to multiple mounting plates.

[0014] As a preferred embodiment of this utility model, the water inlet pipe is detachably connected to multiple first flow meters and gate valves, and the mounting plate is fixedly connected to multiple filter screens.

[0015] As a preferred embodiment of this utility model, the circulating pump is rotatably connected to the circulating water inlet pipe, the circulating water inlet pipe is threadedly fixedly connected to the delivery pipe, and the circulating water inlet pipe is detachably connected to the check valve and the second flow meter.

[0016] As a preferred embodiment of this utility model, the conveying pipe and the circulation pipe are rotatably connected by a connector, the circulation pipe is rotatably connected to the balance valve, the circulation pipe is rotatably connected to multiple circulation outlet pipes, and the circulation outlet pipes are threadedly fixed to one side of multiple mounting plates.

[0017] Beneficial effects

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This trolley for tunnel lining surface treatment uses a circulating pump to deliver water from the outlet pipe to the inlet pipe, and then sequentially to the mounting plate. Multiple spray nozzles spray the lining surface inside the tunnel for curing. Seals improve the sealing between the inlet and outlet pipes. A pressure gauge protects the circulating pump. A first flow meter and gate valve precisely regulate the water flow in the inlet pipe, effectively conserving water. Multiple first flow meters and gate valves, controlled by a control system, adjust the spray nozzle range and number based on the required spraying distance inside the tunnel. A filter screen collects excess water and accumulated water from the curing spray through the circulating outlet pipe and conveyor pipe to the circulating inlet pipe, then into a storage tank, creating a circulating curing process. A balancing valve regulates the balanced flow of water in the circulating and conveyor pipes, ensuring good balance. A check valve and a second flow meter precisely regulate the water flow, preventing backflow and protecting the circulating pump. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the installation structure of the circulating pump of this utility model;

[0022] Figure 3 This is a schematic diagram of the overall structure of the filter screen plate of this utility model.

[0023] Figure 4 This is a schematic diagram of the installation structure of the circulating water inlet pipe of this utility model;

[0024] Figure 5 This is a schematic diagram of structure A of this utility model.

[0025] In the diagram: 1. Support frame; 2. Trolley base; 3. Trolley frame; 4. Reinforcing rib; 5. Water tank; 6. Outlet pipe; 7. Regulating valve; 8. Circulating pump; 9. Connecting pipe; 10. Water guide pipe; 11. Seal; 12. Pressure gauge; 13. Inlet pipe; 14. First flow meter; 15. Gate valve; 16. Mounting plate; 17. Spray nozzle; 18. Filter screen; 19. Circulating inlet pipe; 20. Check valve; 21. Second flow meter; 22. Delivery pipe; 23. Connecting component; 24. Circulating pipe; 25. Balancing valve; 26. Circulating outlet pipe. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figures 1-4 As shown, a trolley for surface treatment of tunnel lining includes a supporting moving frame 1 and a trolley base 2. A trolley frame 3 is provided on the top of the trolley base 2, and multiple reinforcing ribs 4 are fixedly connected to the inner side of the trolley frame 3.

[0028] A water storage tank 5 is located at one end of the trolley base 2. A water outlet pipe 6 is installed at the end of the water storage tank 5 away from the trolley base 2. A regulating valve 7 is installed at one end of the water outlet pipe 6. A circulation pump 8 is installed at the end of the water outlet pipe 6 away from the water storage tank 5. A connecting pipe 9 is installed at the end of the circulation pump 8 away from the water outlet pipe 6. A water guide pipe 10 is installed at one end of the connecting pipe 9. A sealing element 11 is installed on the top of the water guide pipe 10. A pressure detector 12 is installed at one end of the sealing element 11. A water inlet pipe 13 is installed at the end of the water guide pipe 10 away from the connecting pipe 9. An installation plate 16 is installed at the end of the water inlet pipe 13 away from the water guide pipe 10. A water spray nozzle 17 is opened on the top of the installation plate 16. A filter screen plate 18 is installed on the inner side of the installation plate 16.

[0029] The supporting mobile frame 1 is threadedly fixed to the trolley base 2, the trolley base 2 is threadedly fixed to the trolley frame 3, the trolley base 2 is fixed to the water storage tank 5, the water storage tank 5 is threadedly fixed to the water outlet pipe 6; the water outlet pipe 6 is rotatably connected to the regulating valve 7, the circulating pump 8 is rotatably connected to the connecting pipe 9, the connecting pipe 9 is threadedly fixed to the water guide pipe 10; the water guide pipe 10 is threadedly fixed to the water inlet pipe 13 through the sealing element 11, the sealing element 11 is threadedly fixed to the pressure detector 12, and the water inlet pipe 13 is threadedly fixed to multiple mounting plates 16.

[0030] Specifically, the circulating pump 8 is turned on, and the water pressure is adjusted by the regulating valve 7, allowing water to flow out of the water storage tank 5, through the outlet pipe 6 and the connecting pipe 9 into the guide pipe 10. The seal 11 is checked for good condition to ensure that there is no leakage between the guide pipe 10 and the inlet pipe 13. At the same time, the pressure detector 12 is started to monitor the working pressure of the circulating pump 8, and the water flow rate of the inlet pipe 13 is precisely controlled by the first flow meter 14 and the gate valve 15 to meet the needs of different maintenance areas. Water is evenly sprayed onto the tunnel lining through the spray nozzles 17 on the mounting plate 16 for maintenance. The range and number of spray nozzles 17 can be adjusted by the control system according to the size of the tunnel lining.

[0031] A first flow meter 14 is installed at one end of the outer wall of the inlet pipe 13. A gate valve 15 is installed at the end of the outer wall of the inlet pipe 13 away from the pressure detector 12. A circulating inlet pipe 19 is installed at the end of the circulating pump 8 away from the connecting pipe 9. A check valve 20 is installed at one end of the outer wall of the circulating inlet pipe 19. A second flow meter 21 is installed at the end of the circulating inlet pipe 19 near the check valve 20. A delivery pipe 22 is installed at the end of the circulating inlet pipe 19 near the second flow meter 21. A connector 23 is installed at the end of the delivery pipe 22 away from the second flow meter 21. A circulating pipe 24 is installed at the end of the connector 23 away from the delivery pipe 22. A balancing valve 25 is installed at the end of the circulating pipe 24 near the connector 23. Multiple circulating outlet pipes 26 are installed at the end of the circulating pipe 24 near the mounting plate 16.

[0032] The inlet pipe 13 is detachably connected to multiple first flow meters 14 and gate valves 15, and the mounting plate 16 is fixedly connected to multiple filter screens 18; the circulating pump 8 is rotatably connected to the circulating inlet pipe 19, the circulating inlet pipe 19 is threadedly fixedly connected to the delivery pipe 22, and the circulating inlet pipe 19 is detachably connected to the check valve 20 and the second flow meter 21; the delivery pipe 22 is rotatably connected to the circulating pipe 24 through the connector 23, the circulating pipe 24 is rotatably connected to the balance valve 25, the circulating pipe 24 is rotatably connected to multiple circulating outlet pipes 26, and the circulating outlet pipes 26 are threadedly fixedly connected to one side of multiple mounting plates 16;

[0033] Specifically, the water after maintenance is filtered through the filter screen 18 to remove impurities, then collected through the circulating water outlet pipe 26, and transported back to the circulating water inlet pipe 19 through the delivery pipe 22. The water returns to the water storage tank 5 through the circulating water inlet pipe 19 or directly enters the circulating pump 8 for recirculation, forming a closed-loop maintenance system. The balance valve 25 is used to adjust the water flow balance in the circulating pipe 24 and the delivery pipe 22 to ensure stable system operation. The check valve 20 and the second flow meter 21 are used to prevent backflow of water and protect the circulating pump 8 from damage. After the maintenance work is completed, the circulating pump 8 is turned off, and the spraying of all spray nozzles 17 is stopped through the control system.

[0034] It should be noted that this utility model is a trolley for surface treatment of tunnel lining. In use, water in the water storage tank 5 flows out through the outlet pipe 6. The water pressure and flow rate are adjusted by the regulating valve 7. The circulating pump 8 delivers water to the inlet pipe 13 through the connecting pipe 9 and the guide pipe 10. The sealing part 11 ensures that there is no leakage at the connection. The pressure detector 12 monitors the working status of the circulating pump 8. The first flow meter 14 and the gate valve 15 on the inlet pipe 13 are used to accurately control the water flow rate to ensure the effective use of water resources. Water sprays and cures the tunnel lining through multiple spray nozzles 17 on the mounting plate 16. The filter screen 18 prevents impurities from entering the system. The cured water is collected through the circulating outlet pipe 26. The conveying pipe 22 delivers the water back to the circulating inlet pipe 19 to form a closed loop system. The check valve 20 and the second flow meter 21 ensure that the water flows smoothly and without obstruction, prevent backflow, and protect the circulating pump 8. The balancing valve 25 adjusts the water flow balance in the circulating pipe 24 and the conveying pipe 22 to ensure stable operation of the system.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A trolley for surface treatment of tunnel lining, comprising a supporting moving frame (1) and a trolley base (2), characterized in that: The top of the trolley base (2) is provided with a trolley frame (3), and multiple reinforcing ribs (4) are fixedly connected to the inner side of the trolley frame (3). A water storage tank (5) is located at one end of the trolley base (2). A water outlet pipe (6) is installed at the end of the water storage tank (5) away from the trolley base (2). A regulating valve (7) is installed at one end of the water outlet pipe (6). A circulation pump (8) is installed at the end of the water outlet pipe (6) away from the water storage tank (5). A connecting pipe (9) is installed at the end of the circulation pump (8) away from the water outlet pipe (6). A guide pipe (10) is installed at one end of the connecting pipe (9). A sealing element (11) is installed at the top of the water pipe (10). A pressure detector (12) is installed at one end of the sealing element (11). A water inlet pipe (13) is installed at the end of the water pipe (10) away from the connecting pipe (9). An installation plate (16) is installed at the end of the water inlet pipe (13) away from the water pipe (10). A water spray nozzle (17) is opened at the top of the installation plate (16). A filter screen plate (18) is installed on the inner side of the installation plate (16).

2. The trolley for surface treatment of tunnel lining according to claim 1, characterized in that: A first flow meter (14) is installed at one end of the outer wall of the inlet pipe (13), and a gate valve (15) is installed at the end of the outer wall of the inlet pipe (13) away from the pressure detector (12). A circulating inlet pipe (19) is installed at the end of the circulating pump (8) away from the connecting pipe (9). A check valve (20) is installed at one end of the outer wall of the circulating inlet pipe (19), and a second flow meter (21) is installed at the end of the circulating inlet pipe (19) near the check valve (20). A delivery pipe (22) is installed near the end of the second flow meter (21). A connector (23) is installed at the end of the delivery pipe (22) away from the second flow meter (21). A circulation pipe (24) is installed at the end of the connector (23) away from the delivery pipe (22). A balancing valve (25) is installed at the end of the outer wall of the circulation pipe (24) near the connector (23). Multiple circulation outlet pipes (26) are installed at the end of the circulation pipe (24) near the mounting plate (16).

3. The trolley for surface treatment of tunnel lining according to claim 1, characterized in that: The supporting mobile frame (1) is threadedly fixed to the trolley base (2), the trolley base (2) is threadedly fixed to the trolley frame (3), the trolley base (2) is fixedly fixed to the water storage tank (5), and the water storage tank (5) is threadedly fixed to the water outlet pipe (6).

4. A trolley for surface treatment of tunnel lining according to claim 1, characterized in that: The outlet pipe (6) is rotatably connected to the regulating valve (7), the circulating pump (8) is rotatably connected to the connecting pipe (9), and the connecting pipe (9) is threadedly connected to the water guide pipe (10).

5. A trolley for surface treatment of tunnel lining according to claim 1, characterized in that: The water guide pipe (10) is threadedly fixed to the water inlet pipe (13) through a sealing element (11), the sealing element (11) is threadedly fixed to the pressure detector (12), and the water inlet pipe (13) is threadedly fixed to multiple mounting plates (16).

6. A trolley for surface treatment of tunnel lining according to claim 2, characterized in that: The water inlet pipe (13) is detachably connected to multiple first flow meters (14) and gate valves (15), and the mounting plate (16) is fixedly connected to multiple filter screens (18).

7. A trolley for surface treatment of tunnel lining according to claim 2, characterized in that: The circulating pump (8) is rotatably connected to the circulating water inlet pipe (19), the circulating water inlet pipe (19) is threadedly fixedly connected to the delivery pipe (22), and the circulating water inlet pipe (19) is detachably connected to the check valve (20) and the second flow meter (21).

8. A trolley for surface treatment of tunnel lining according to claim 2, characterized in that: The delivery pipe (22) and the circulation pipe (24) are rotatably connected by a connector (23). The circulation pipe (24) is rotatably connected to the balance valve (25). The circulation pipe (24) is rotatably connected to multiple circulation outlet pipes (26). The circulation outlet pipes (26) are threadedly fixed to one side of multiple mounting plates (16).

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