Tunnel lining maintenance device

Abstract

The utility model discloses a tunnel lining maintenance device, and relates to the technical field of tunnel construction. Comprising a base which is provided with a supporting assembly and a water tank. A water pump is arranged in the water tank; the top of the supporting assembly is provided with a maintenance assembly, the maintenance assembly comprises a main frame, auxiliary frames and a tensioning mechanism, the main frame is fixedly connected with the supporting assembly, the main frame and the auxiliary frames are each provided with a containing cavity formed by axial through holes, and the multiple auxiliary frames are located on the two sides of the main frame; the multiple auxiliary frames on the same side are sequentially and rotationally connected, the main frame is rotationally connected with the auxiliary frames making contact with the main frame, spraying pipes are arranged in the containing cavity, multiple nozzles communicated with the spraying pipes are arranged at the tops of the main frame and the auxiliary frames, the multiple spraying pipes are connected through flexible pipes, and the spraying pipes are communicated with the water tank. The tensioning mechanism is used for tensioning the auxiliary frame. The overall radian of the maintenance assembly can be adjusted, and adaptability to tunnels with different radians is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a tunnel lining maintenance device. Background Art

[0002] Tunnel lining refers to a permanent structure that supports and maintains the long-term stability and durability of the tunnel. After the construction of the tunnel lining, the lining is usually watered to avoid shrinkage and deformation caused by premature evaporation of water on the lining surface. If it is not maintained in time or not maintained in place, it may cause surface shrinkage cracks and affect the durability, integrity and service life of the concrete.

[0003] The patent with the announcement number CN117662190A discloses a construction method of a vehicle-mounted maintenance device for tunnel secondary lining concrete. The patent installs the maintenance device on the construction vehicle, then raises the height of the spraying mechanism through the lifting mechanism, and finally sprays the maintenance section through the spraying mechanism, so that construction can be carried out in a narrow tunnel. However, the curvature of the spraying mechanism of the patent cannot be changed. When encountering different curvatures, it is impossible to achieve uniform spraying on the tunnel, which may result in inadequate maintenance and affect the life of the concrete. Utility Model Content

[0004] The main purpose of the utility model is to provide a tunnel lining maintenance device to solve the above problems.

[0005] To achieve the above-mentioned purpose, the utility model provides a tunnel lining maintenance device, comprising a base, on which a support assembly and a water tank are arranged;

[0006] A water pump is arranged in the water tank;

[0007] A maintenance assembly is provided on the top of the support assembly, and the maintenance assembly includes a main frame, an auxiliary frame and a tensioning mechanism. The main frame is fixedly connected to the support assembly, and a receiving cavity formed by an axial through hole is provided on the main frame and the auxiliary frame. The auxiliary frame is located on both sides of the main frame and is provided with a plurality of auxiliary frames, and the plurality of auxiliary frames on the same side are rotatably connected in sequence, and the main frame is rotatably connected to the auxiliary frames in contact with it, and a spray pipe is provided in the receiving cavity, and a plurality of nozzles connected to the spray pipe are provided on the top of the main frame and the auxiliary frame, and the plurality of spray pipes are connected by a flexible pipe, and the spray pipe located in the main frame is connected to the water tank;

[0008] The tensioning mechanism is used for tensioning the auxiliary frame.

[0009] Further, the support assembly includes a support plate, a threaded rod and a rotating table, the support plate is arranged on the base, the rotating table is arranged at the bottom of the support plate, a through hole is arranged on the support plate, the threaded rod is sleeved in the through hole and is coaxially fixedly connected to the rotating table, a sleeve is threadedly connected to the threaded rod, sliding tables are arranged on both sides of the sleeve, a sliding rod is slidably connected in the sliding table, the other end of the sliding rod is fixedly connected to the support plate, and the main frame is arranged on the top of the sleeve.

[0010] Furthermore, the spray pipe located in the main frame is connected to the water tank through a flexible pipe.

[0011] Furthermore, connecting ears are provided at the bottoms of both ends of the main frame and the auxiliary frame, and the main frame and the auxiliary frame are rotatably connected via the connecting ears.

[0012] Furthermore, a flexible sleeve is provided in the gaps between the main frame and the auxiliary frame and between the plurality of auxiliary frames.

[0013] Furthermore, track wheels or universal wheels are provided at the bottom of the base.

[0014] Furthermore, a trailer hook is provided on the base.

[0015] The utility model has the following beneficial effects:

[0016] The utility model can change the overall curvature of the maintenance component by adjusting the relative angles between the auxiliary frames, thereby improving the adaptability to tunnels with different curvatures, allowing the lining to be evenly sprayed, and avoiding the situation of inadequate maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a tunnel lining maintenance device of the utility model;

[0018] Figure 2 This is a test diagram of a tunnel lining maintenance device of the utility model;

[0019] Figure 3 The utility model is a schematic diagram of a tensioning mechanism of a tunnel lining maintenance device.

[0020] In the figure: 1-base; 2-water tank; 3-main frame; 4-auxiliary frame; 5-sprinkler; 6-support plate; 7-threaded rod; 8-rotating table; 9-sleeve; 10-slide; 11-slide rod; 12-universal wheel; 13-trailer hook; 14-connecting ear; 15-fixed pulley; 16-fixing ring; 17-traction rope. DETAILED DESCRIPTION

[0021] In order to achieve the above-mentioned purpose and effect, the technical means and structure adopted by the utility model are described in detail with reference to the accompanying drawings for the preferred embodiments of the utility model and their features and functions.

[0022] As attached Figure 1-3 As shown, the utility model provides a tunnel lining maintenance device, comprising a base 1, on which a support assembly and a water tank 2 are arranged;

[0023] A water pump is provided in the water tank 2;

[0024] A maintenance assembly is arranged on the top of the support assembly, and the maintenance assembly includes a main frame 3, an auxiliary frame 4 and a tensioning mechanism. The main frame 3 is arranged on the top of the support assembly, and both the main frame 3 and the auxiliary frame 4 are provided with a accommodating cavity formed by an axial through hole, and the contour of the accommodating cavity is adapted to the auxiliary frame 4 and the main frame 3.

[0025] The auxiliary frames 4 are located on both sides of the main frame 3 and are provided in multiple sections, namely the first section, the second section, the third section... until the nth section, wherein the first section of the auxiliary frame 4 is rotatably connected to the main frame 3, the second section of the auxiliary frame 4 is rotatably connected to the first section of the auxiliary frame 4, the third section of the auxiliary frame 4 is rotatably connected to the fourth section of the auxiliary frame 4... and so on, a multi-section structure is formed on both sides of the main frame 3.

[0026] The tensioning mechanism includes a fixed pulley 15, a fixed ring 16 and a winch. The fixed pulley 15 and the fixed ring 16 are located in the accommodating cavity of the auxiliary frame 4. The fixed pulley 15 is located at the top of the accommodating cavity, and the fixed ring 16 is located at the bottom of the accommodating cavity. The fixed pulley 15 and the fixed ring 16 are both far away from the main frame 3. The winch is located in the accommodating cavity of the main frame 3 and is provided with multiple winches. The traction ropes 17 of the multiple winches are fixedly connected by different fixed rings 16, and the traction rope 17 will be guided by the fixed pulley 15 of the upper section of the fixed ring 16 connected to it, that is, the traction rope 17 connected to the second section of the fixed ring 16 will be guided by the first section of the fixed pulley 15, and the traction rope 17 connected to the third section of the fixed ring 16 will be guided by the second section of the fixed pulley 15... Among them, the traction rope 17 connected to the first section of the fixed ring 16 is not guided by the fixed pulley 15. A signal receiver is also provided in the main frame 3. The signal receiver is electrically connected to the winch and is wirelessly connected to the electronic control board. When the winch releases the traction rope 17, the auxiliary frame 4 rotates downward under the influence of gravity, and the auxiliary frame 4 will rotate downward until it is pulled by the traction rope 17 again and is fixed in the corresponding position. When the winch retracts the traction rope 17, the traction rope 17 will pull the auxiliary frame 4 upward, causing the auxiliary frame 4 to rotate upward, thereby adjusting the position of the auxiliary frame 4.

[0027] A spray pipe is arranged in the accommodating cavity, and a plurality of nozzles 5 connected to the spray pipe are arranged on the top of the main frame 3 and the auxiliary frame 4. The plurality of spray pipes are connected by flexible pipes, and the spray pipe in the main frame 3 is connected to the water tank 2.

[0028] In actual use, the operator can use a vehicle to move the device in the tunnel. During the movement, the operator can use the electronic control panel to control the extension distance of the traction rope 17 on the winch to adjust the position of the auxiliary frame 4, so that the multi-section auxiliary frame 4 forms the same arc as the inner wall of the tunnel, and then start the water pump to allow the water in the water tank 2 to enter the spray pipe and be sprayed out from the nozzle 5 to maintain the lining of the tunnel. At this time, the vehicle can enable the device to move forward continuously and complete the maintenance work section by section.

[0029] In this embodiment, the support assembly includes a support plate 6, a threaded rod 7 and a rotating platform 8. The support plate 6 is arranged on the base 1, and the rotating platform 8 is arranged at the bottom of the support plate 6. The support plate 6 is provided with a through hole. The threaded rod 7 is sleeved in the through hole and is coaxially fixedly connected with the rotating platform 8. The threaded rod 7 is threadedly connected with a sleeve 9. Slides 10 are arranged on both sides of the sleeve 9. A slide groove is arranged in the slide 10. A slide rod 11 is slidably connected in the slide groove. The other end of the slide rod 11 is fixedly connected with the support plate 6. The main frame 3 is arranged on the top of the sleeve 9. The spray pipe located in the main frame 3 is connected to the water tank 2 through a flexible pipe. The operator can rotate the threaded rod 7 through the rotating platform 8. When the threaded rod 7 rotates, the sleeve 9 threadedly connected with the threaded rod 7 on the threaded rod 7 will move on the threaded rod 7, and the sleeve 9 is restricted by the slide 10 and the slide rod 11 when moving, so that the sleeve 9 can only move in the vertical direction and cannot rotate, thereby changing the height of the main frame 3 and the auxiliary frame 4, so that the device can adapt to tunnels of different heights.

[0030] In this embodiment, connecting ears 14 are provided at the bottom of both ends of the main frame 3 and the auxiliary frame 4, and the main frame 3 and the auxiliary frame 4 are rotatably connected through the connecting ears 14. When the operator needs to add the number of sections of the auxiliary frame 4, the connecting ear 14 of the new section of the auxiliary frame 4 can be coaxial with the connecting ear 14 of the existing last section of the auxiliary frame 4, and the rotating shaft can be inserted into the through hole of the connecting ear 14 to connect the two connecting ears 14, and then the fixing ring 16 of the new section of the auxiliary frame 4 is connected to the traction rope 17 of the winch to complete the increase of the number of sections.

[0031] In this embodiment, a flexible sleeve is provided in the gaps between the main frame 3 and the auxiliary frame 4 and between the plurality of auxiliary frames 4, so as to protect the components at each connection of the maintenance assembly of the device.

[0032] In this embodiment, a track wheel or a universal wheel 12 is provided at the bottom of the base 1, and a trailer hook 13 is provided on the base 1. The operator can connect the vehicle to the trailer hook 13 to achieve the traction of the device, or set a driving device to drive the track wheel to achieve the self-propelled walking of the device.

[0033] The above description is only the preferred embodiment of the utility model, not all embodiments. Anyone should be aware that structural changes made under the inspiration of the utility model, and all technical solutions that are the same or similar to the utility model, belong to the protection scope of the utility model.

Claims

1. A tunnel lining maintenance device, characterized in that: It comprises a base (1), on which a support assembly and a water tank (2) are arranged; A water pump is arranged in the water tank (2); A maintenance component is arranged on the top of the support component, and the maintenance component comprises a main frame (3), an auxiliary frame (4) and a tensioning mechanism. The main frame (3) is fixedly connected to the support component. The main frame (3) and the auxiliary frame (4) are both provided with a receiving cavity formed by an axial through hole. The auxiliary frame (4) is located on both sides of the main frame (3) and is provided with a plurality of them. The plurality of auxiliary frames (4) on the same side are rotatably connected in sequence. The main frame (3) is rotatably connected with the auxiliary frame (4) in contact therewith. A spray pipe is arranged in the receiving cavity. The tops of the main frame (3) and the auxiliary frame (4) are provided with a plurality of nozzles (5) connected with the spray pipe. The plurality of spray pipes are connected with each other through a flexible pipe. The spray pipe located in the main frame (3) is connected with the water tank (2). The tensioning mechanism is used for tensioning the auxiliary frame (4).

2. A tunnel lining maintenance device according to claim 1, characterized in that: The support assembly comprises a support plate (6), a threaded rod (7) and a rotating table (8); the support plate (6) is arranged on the base (1); the rotating table (8) is arranged at the bottom of the support plate (6); a through hole is arranged on the support plate (6); the threaded rod (7) is sleeved in the through hole and is coaxially fixedly connected to the rotating table (8); a sleeve (9) is threadedly connected to the threaded rod (7); slide tables (10) are arranged on both sides of the sleeve (9); a slide rod (11) is slidably connected inside the slide table (10); the other end of the slide rod (11) is fixedly connected to the support plate (6); and the main frame (3) is arranged on the top of the sleeve (9).

3. A tunnel lining maintenance device according to claim 2, characterized in that: The spray pipe located in the main frame (3) is connected to the water tank (2) via a flexible pipe.

4. A tunnel lining maintenance device according to claim 1, characterized in that: The bottoms of both ends of the main frame (3) and the auxiliary frame (4) are provided with connecting ears (14), and the main frame (3) and the auxiliary frame (4) are rotatably connected via the connecting ears (14).

5. The tunnel lining maintenance device according to claim 1, characterized in that: Flexible sleeves are provided in the gaps between the main frame (3) and the auxiliary frame (4) and between the plurality of auxiliary frames (4).

6. A tunnel lining maintenance device according to any one of claims 1 to 5, characterized in that: The bottom of the base (1) is provided with track wheels or universal wheels (12).

7. A tunnel lining maintenance device according to claim 6, characterized in that: A trailer hook (13) is provided on the base (1).

Images