Tunnel lining maintenance coating trolley

Abstract

The utility model relates to tunnel lining maintenance technical field, concretely to a kind of tunnel lining maintenance laminating trolley, including maintenance trolley and adjusting mechanism;Adjusting mechanism includes two first fixed block and second fixed block being set on moving trolley, connecting plate being rotatably connected with first fixed block, first mounting bracket being rotatably connected on connecting plate, pressure roller being rotatably connected on first mounting bracket, first connecting piece being rotatably connected with second fixed block, connecting cylinder being set on first connecting piece, spring being set in connecting cylinder interior and one end being set on connecting cylinder, telescopic rod being slidably connected on connecting cylinder and one end with spring, second connecting piece being set on telescopic rod, third connecting piece being set on connecting plate, and four annular array distribution are slidably connected on telescopic rod.The utility model can control the tension of film when laminating, improve the quality of film, and further improve the maintenance effect of lining.

Description

Technical Field

[0001] This utility model relates to the field of tunnel lining maintenance technology, and in particular to a tunnel lining maintenance film covering trolley. Background Technology

[0002] Traditional water spraying methods for tunnel curing are inefficient and environmentally unfriendly. The new membrane-coating trolley uses intelligent permeable membrane technology to achieve long-term, uniform moisture retention, significantly reducing water consumption and eliminating wastewater problems, thus significantly improving the quality of concrete curing.

[0003] Chinese Patent CN214062982U discloses a tunnel lining curing and coating trolley, including a pair of arc-shaped trolley tracks, with coating trolleys mounted on each track. A crossbeam is positioned in the middle of each coating trolley, and a pair of coating roll frames and film roll connectors are symmetrically arranged at both ends of the crossbeam. A film roll is mounted on the film roll connector. A coating pressure roller is positioned behind the film roll connector. An airflow cleaning nozzle and a pneumatic pipe are positioned at the front end of the crossbeam. The upper ends of the airflow cleaning nozzle, film roll connector, and coating pressure roller correspond to the inner wall of the lining concrete. This lining coating and curing trolley uses the coating trolleys to drive the coating mechanism to attach the coating to the surface of the inner wall of the lining concrete for moisturizing and curing. Moisture released from the concrete is retained on the concrete surface for a long period, ensuring the inner wall of the lining concrete remains moisturized during curing, thus improving construction progress and quality.

[0004] However, the above technical solution has the following shortcomings: When the device is applying the film, it directly wraps the film-applying head of the film roll around the upper end of the film-applying pressure roller and applies the film to the lower end of the inner wall of the lining concrete. The lack of a tensioning mechanism to control the tension of the film results in uneven film application during the application process, which affects the quality of film curing. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a tunnel lining curing and covering trolley that can control the tension of the film during covering, thereby improving the quality of the covering and thus enhancing the curing effect on the lining.

[0006] The technical solution of this utility model is a tunnel lining curing and coating trolley, including a curing trolley and an adjustment mechanism; the curing trolley is equipped with a support frame with guide rails, a movable trolley is movably connected to the guide rails, a first upright is provided on the movable trolley, and a detachable unwinding roller is rotatably connected to the first upright; the adjustment mechanism includes two first and second fixed blocks provided on the movable trolley, a connecting plate rotatably connected to the first fixed blocks, a first mounting frame rotatably connected to the connecting plate, a pressure roller rotatably connected to the first mounting frame, a first connecting member rotatably connected to the second fixed block, a connecting cylinder provided on the first connecting member, a spring provided inside the connecting cylinder and with one end provided on the connecting cylinder, a telescopic rod slidably connected to the connecting cylinder and with one end connected to the spring, a second connecting member provided on the telescopic rod, a third connecting member provided on the connecting plate, and four sliders arranged in a ring array on the telescopic rod; the inside of the connecting cylinder is provided with a guide groove for the sliders to slide axially, and the second and third connecting members are rotatably connected.

[0007] Preferably, the mobile trolley is provided with a limiting seat, and the support frame is provided with a groove for the limiting seat to slide in an arc.

[0008] Preferably, the mobile trolley is provided with a second upright, and a guide roller is rotatably connected to the second upright.

[0009] Preferably, two limiting rings are coaxially arranged on the guide roller.

[0010] Preferably, the mobile trolley is equipped with vertically distributed cylinders, which drive a second mounting frame, and a coating roller is rotatably connected to the second mounting frame.

[0011] Preferably, the second mounting bracket is provided with two connecting rods, and the moving trolley is provided with two guide cylinders, with the connecting rods slidably connected to the guide cylinders.

[0012] Preferably, the mobile trolley is equipped with a jet frame, which has an air intake pipe and multiple nozzles arranged in a linear array.

[0013] Preferably, a baffle is provided on the jet frame.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] This invention, through its adjustable mechanism and guide roller, can control the tension of the film, avoiding the poor flatness that can easily occur when the film is directly wrapped around the coating structure. It also solves the problem that the force exerted by the pressure roller on the film increases with rotation, affecting the pressing effect. Furthermore, the mechanism has a simple structure, low manufacturing cost, and good practicality. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model;

[0019] Figure 4 This is a cross-sectional schematic diagram of the connecting cylinder of this utility model.

[0020] Reference numerals in the attached drawings: 1. Curing trolley; 2. Support frame; 3. Moving trolley; 4. First upright; 5. Unwinding roller; 6. First fixing block; 7. Connecting plate; 8. First mounting frame; 9. Pressure roller; 10. Second fixing block; 11. Connecting cylinder; 12. First connecting piece; 13. Spring; 14. Telescopic rod; 15. Second connecting piece; 16. Third connecting piece; 17. Slider; 18. Guide groove; 19. Second upright; 20. Guide roller; 21. Limiting ring; 22. Cylinder; 23. Second mounting frame; 24. Coating roller; 25. Connecting rod; 26. Guide cylinder; 27. Air jet frame; 28. Nozzle; 29. ​​Air inlet pipe; 30. Baffle; 31. Limiting seat. Detailed Implementation

[0021] Example 1

[0022] like Figure 1 - Figure 4 As shown in the figure, the tunnel lining curing and covering trolley proposed in this embodiment includes a curing trolley 1 and an adjustment mechanism; the curing trolley 1 is provided with a support frame 2 with a guide rail, a movable trolley 3 is movably connected to the guide rail, the movable trolley 3 is provided with a first upright 4, a detachable unwinding roller 5 is rotatably connected to the first upright 4, the movable trolley 3 is provided with a limiting seat 31, the support frame 2 is provided with a groove for the limiting seat 31 to slide in an arc shape, and the limiting seat 31 is used to guide and limit the movable trolley 3.

[0023] The adjustment mechanism includes two first fixed blocks 6 and second fixed blocks 10 mounted on the moving trolley 3, a connecting plate 7 rotatably connected to the first fixed block 6, a first mounting bracket 8 rotatably connected to the connecting plate 7, a pressure roller 9 rotatably connected to the first mounting bracket 8, a first connecting member 12 rotatably connected to the second fixed block 10, a connecting cylinder 11 mounted on the first connecting member 12, a spring 13 mounted inside the connecting cylinder 11 with one end mounted on the connecting cylinder 11, a telescopic rod 14 slidably connected to the connecting cylinder 11 with one end connected to the spring 13, a second connecting member 15 mounted on the telescopic rod 14, a third connecting member 16 mounted on the connecting plate 7, and four sliders 17 arranged in a ring array on the telescopic rod 14; the connecting cylinder 11 has a guide groove 18 for the sliders 17 to slide axially, and the second connecting member 15 and the third connecting member 16 are rotatably connected.

[0024] In this embodiment, when the unwinding roller 5 rotates to transport the film, the pressure roller 9 remains in contact with the film, thus controlling the film tension and preventing poor film flatness that can easily occur when the film is directly wrapped around the coating structure. Furthermore, as the number of film roll layers decreases, the pressure roller 9, under gravity, drives the first mounting frame 8 and the connecting plate 7 to deflect around the hinge position of the first fixing block 6, ensuring that the pressure roller 9 always acts on the film. During this deflection, the second connecting member 15 and the third connecting member 16 rotate relative to each other. This causes the telescopic rod 14 to slide continuously into the connecting cylinder 11, while simultaneously compressing the spring 13. The continuous compression of the spring 13 increases the rebound force, which counteracts the force on the pressure roller 9. This avoids the problem that the increased force on the film from the pressure roller 9 after deflection would affect the pressing effect, thereby improving the quality of film coating. It has good practicality. Although the precision of this adjustment mechanism in controlling film tension cannot compare with the control and adjustment technology of sensor power equipment, it has a simple structure, low manufacturing cost, and is sufficient for the precision required for tunnel lining coating.

[0025] It should be noted that: before using the equipment, the distance between the first fixing block 6 and the second fixing block 10, as well as the selection of the spring 13, need to be adjusted. When the control connecting plate 7 rotates with the unwinding of the film, it is necessary to ensure that the pressure of the pressure roller 9 on the film is suitable for the film conveying.

[0026] Example 2

[0027] like Figure 1 and Figure 2As shown in the figure, the tunnel lining curing and coating trolley proposed in this embodiment, compared with the first embodiment, has the following features: a second upright 19 is provided on the moving trolley 3, a guide roller 20 is rotatably connected to the second upright 19, two limiting rings 21 are coaxially provided on the guide roller 20, vertically distributed cylinders 22 are provided on the moving trolley 3, a second mounting frame 23 is driven and connected to the cylinders 22, a coating roller 24 is rotatably connected to the second mounting frame 23, two connecting rods 25 are provided on the second mounting frame 23, and two guide cylinders 26 are provided on the moving trolley 3. The connecting rods 25 are slidably connected to the guide cylinders 26. The limiting rings 21 play a certain limiting role in the conveying of the film, and the connecting rods 25 and the guide cylinders 26 play a guiding and stabilizing role in the lifting and lowering of the second mounting frame 23.

[0028] In this embodiment, after the film roll is installed on the unwinding roller 5, one end of the film is first manually passed under the guide roller 20, then passed over the top of the covering roller 24, and covered with film at the bottom end of the inner wall of the lining. Then, the second mounting frame 23 is driven to rise by the cylinder 22 to drive the covering roller 24 to move, so that the covering roller 24 presses the film surface to make the film adhere to the inner wall of the lining. At the same time, the moving trolley 3 is started to move along the guide rail, and the film on the film roll is pulled out to achieve continuous film covering. When the moving trolley 3 runs to the other end of the guide rail, it stops. The pre-reserved length of the covering head is manually pulled out and disconnected. The covering head is manually attached to the lower end of the inner wall of the concrete lining to complete the film covering and maintenance of one section.

[0029] Example 3

[0030] like Figure 1 and Figure 2 As shown in the figure, the tunnel lining curing and covering trolley proposed in this embodiment, compared with the second embodiment, has an air jet frame 27 on the mobile trolley 3, an air inlet pipe 29 and multiple linearly arrayed nozzles 28 on the air jet frame 27, and a baffle 30 on the air jet frame 27.

[0031] In this embodiment, during the film covering process, the blower (not shown) installed on the curing trolley 1 delivers air into the air jet frame 27 through the air inlet pipe 29 and sprays it onto the inner wall of the lining through the nozzle 28 to achieve a certain cleaning effect. The baffle 30 is used to provide a certain protection for the film conveying.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A tunnel lining curing and covering trolley, characterized in that, include: A maintenance trolley (1) is provided with a support frame (2) with guide rails. A mobile trolley (3) is movably connected to the guide rails. A first upright (4) is provided on the mobile trolley (3). A detachable unwinding roller (5) is rotatably connected to the first upright (4). The adjustment mechanism includes two first fixed blocks (6) and second fixed blocks (10) mounted on the moving trolley (3), a connecting plate (7) rotatably connected to the first fixed block (6), a first mounting bracket (8) rotatably connected to the connecting plate (7), a pressure roller (9) rotatably connected to the first mounting bracket (8), a first connecting member (12) rotatably connected to the second fixed block (10), a connecting cylinder (11) mounted on the first connecting member (12), a spring (13) mounted inside the connecting cylinder (11) with one end mounted on the connecting cylinder (11), a telescopic rod (14) slidably connected to the connecting cylinder (11) with one end connected to the spring (13), a second connecting member (15) mounted on the telescopic rod (14), a third connecting member (16) mounted on the connecting plate (7), and four sliders (17) arranged in a ring array on the telescopic rod (14); the connecting cylinder (11) is provided with a guide groove (18) for the sliders (17) to slide axially, and the second connecting member (15) and the third connecting member (16) are rotatably connected.

2. The tunnel lining curing and covering trolley according to claim 1, characterized in that, The mobile trolley (3) is provided with a limiting seat (31), and the support frame (2) is provided with a groove for the limiting seat (31) to slide in an arc.

3. The tunnel lining curing and covering trolley according to claim 1, characterized in that, The mobile trolley (3) is equipped with a second upright (19), and a guide roller (20) is rotatably connected to the second upright (19).

4. The tunnel lining curing and covering trolley according to claim 3, characterized in that, Two limiting rings (21) are coaxially arranged on the guide roller (20).

5. The tunnel lining curing and covering trolley according to claim 1, characterized in that, The mobile trolley (3) is equipped with vertically distributed cylinders (22), which drive the second mounting frame (23) and the second mounting frame (23) is rotatably connected to the film coating roller (24).

6. The tunnel lining curing and covering trolley according to claim 5, characterized in that, The second mounting bracket (23) is provided with two connecting rods (25), and the moving trolley (3) is provided with two guide cylinders (26). The connecting rods (25) are slidably connected to the guide cylinders (26).

7. The tunnel lining curing and covering trolley according to claim 1, characterized in that, The mobile trolley (3) is equipped with a jet frame (27), which is equipped with an air intake pipe (29) and multiple linearly arrayed nozzles (28).

8. A tunnel lining curing and covering trolley according to claim 7, characterized in that, A baffle (30) is provided on the jet frame (27).

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