Tunnel secondary lining concrete water spraying maintenance device

Abstract

The utility model provides a tunnel secondary lining concrete water spraying maintenance device which comprises a secondary lining concrete trolley, a cantilever support is arranged on the tail end face of the secondary lining concrete trolley, a pair of linear displacement sliding sets which are transversely spaced are arranged on the cantilever support in the longitudinal direction, and a movable frame is connected to the linear displacement sliding sets in a sliding mode. The movable frame is provided with a driving assembly used for driving the movable frame to move in the axial direction of the linear displacement sliding set and an annular water spraying pipe located on the radial periphery of the cantilever frame, and annular water spraying nozzles used for spraying water to the surface of tunnel secondary lining concrete are arrayed on the annular water spraying pipe. The water storage tank is connected with a booster pump for supplying water to the annular spray pipe; when tunnel secondary lining concrete is cured, the annular water spraying pipe is controlled to longitudinally reciprocate along the cantilever support to spray water to the inner surface of the tunnel secondary lining concrete for curing, manpower is saved, and safety is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of tunnel maintenance equipment, and specifically relates to a tunnel secondary lining concrete water spraying maintenance device. BACKGROUND

[0002] In the tunnel engineering construction process, the tunnel secondary lining concrete is like a tough ridge beam, which supports the stability and safety of the tunnel. However, the performance and service life of this key structure are not just achieved by one-time construction, but also depend on subsequent careful maintenance. Therefore, the maintenance of the tunnel secondary lining concrete is not only the protection of the engineering quality, but also the responsibility for public safety.

[0003] During the hardening process of the tunnel secondary lining concrete, proper moisture retention and reasonable maintenance of temperature control are crucial. The secondary lining concrete that is not properly maintained is prone to surface cracking due to rapid water loss, and even develops into deep cracks, affecting the integrity and waterproof performance of the structure.

[0004] The conventional tunnel secondary lining concrete water spraying maintenance is performed by manually holding a water spraying device to spray the inner surface of the tunnel secondary lining concrete. This not only occupies manual labor, but also has poor maintenance safety because other construction vehicles need to pass through the tunnel during maintenance. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the purpose of the utility model is to provide a tunnel secondary lining concrete water spraying maintenance device, which is integrated with the secondary lining concrete trolley, does not occupy the tunnel ground space, and does not affect the passage of other construction vehicles on the tunnel ground.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A tunnel secondary lining concrete water spraying maintenance device, comprising a secondary lining concrete trolley, wherein the tail end surface of the secondary lining concrete trolley is provided with a cantilever frame, a pair of transversely spaced straight line displacement slides are arranged on the cantilever frame in the longitudinal direction, a moving frame is slidably connected to the pair of straight line displacement slides, a driving assembly for driving the moving frame to move axially along the straight line displacement slides and a ring-shaped water spraying pipe located at the radial outer periphery of the cantilever frame are arranged on the moving frame, an array of ring-shaped water spraying nozzles for spraying water onto the surface of the tunnel secondary lining concrete is arranged on the ring-shaped water spraying pipe, a water storage tank is arranged on the secondary lining concrete trolley, and a booster pump connected to the water storage tank is used to supply water to the ring-shaped water spraying pipe.

[0008] Further, the straight line displacement slide comprises a sliding rail and a sliding sleeve, the sliding rail is arranged on the cantilever frame, the sliding sleeve is slidably nested on the sliding rail, and the moving frame is arranged on the sliding sleeve.

[0009] Furthermore, the drive assembly includes a drive motor and a friction drive wheel. The drive motor is vertically mounted on the movable frame, and the friction drive wheel is mounted at the output end of the drive motor. The radial outer periphery of the friction drive wheel is in frictional contact with the side of the slide rail.

[0010] Furthermore, the drive assembly includes a drive motor, a gear, and a rack. The drive motor is vertically mounted on the movable frame, the output end of the drive motor is provided with the gear, and the rack is provided on the side of the slide rail. The gear meshes with the rack.

[0011] Furthermore, a T-shaped frame is provided at one longitudinal end of the cantilever frame, and a tension rope is connected to the upper part of the T-shaped frame. One end of the tension rope extends and connects to the secondary lining concrete trolley.

[0012] Furthermore, a solenoid valve is connected to the water storage tank, one end of which is connected to the booster pump, and the other end of the booster pump is connected to the circumferential spray pipe via a water supply hose.

[0013] Furthermore, a support chain is provided longitudinally on the upper part of the cantilever frame, and the water supply hose passes through the support chain.

[0014] Furthermore, the circumferential spray pipes are a pair arranged longitudinally at intervals, and at least one horizontal spray pipe is connected between the two ends of the pair of circumferential spray pipes. The two ends of the horizontal spray pipe are connected to the circumferential spray pipes, and horizontal spray nozzles are arranged in an array on the horizontal spray pipe.

[0015] Furthermore, a guide plate is provided on the movable frame, the guide plate extends laterally through the movable frame, and both ends of the guide plate extend toward the outer ends of the two sides of the circumferential water spray pipe and are located at the lower end of the circumferential water spray pipe.

[0016] Furthermore, the secondary lining concrete trolley is equipped with a controller, and limit switches are provided on both longitudinal sides of the moving frame. The solenoid valve, booster pump, drive motor, and limit switches are all electrically connected to the controller.

[0017] By adopting the above technical solution, this utility model has the following advantages and effects:

[0018] (1) The present invention provides a tunnel secondary lining concrete spraying curing device. When the tunnel secondary lining concrete is being cured, the circumferential spray pipe is controlled to move longitudinally along the cantilever frame to spray water towards the inner surface of the tunnel secondary lining concrete, thus saving manpower.

[0019] (2) The present invention provides a tunnel secondary lining concrete spraying curing device, which integrates the secondary lining concrete trolley into one unit, thus occupying less of the limited space in the tunnel, and can follow the secondary lining concrete trolley to cure the tunnel secondary lining concrete that has just been demolded in a timely manner, without affecting the passage of other construction vehicles on the ground in the tunnel, thus ensuring the driving safety of other construction vehicles. Attached Figure Description

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

[0021] Figure 2 for Figure 1 Side view.

[0022] The attached figures are labeled as follows:

[0023] 1-Secondary lining concrete trolley, 2-Water storage tank, 3-Booster pump, 4-Solenoid valve, 5-Cantilever frame, 6-Friction drive wheel, 7-Horizontal spray pipe, 8-Drive motor, 9-Slide rail, 10-Sliding sleeve, 11-Limit switch, 12-Controller, 13-Moving frame, 14-Circular spray pipe, 15-Circular spray nozzle, 16-Water supply hose, 17-Chain support, 18-Guide plate, 19-Tension rope, 20-T-shaped frame, 21-Horizontal spray nozzle. Detailed Implementation

[0024] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to better understand the purpose, features and advantages of this utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of this utility model, but are only for illustrating the essential spirit of the technical solution of this utility model.

[0025] like Figures 1-2 As shown. This utility model discloses a tunnel secondary lining concrete spraying curing device, including a secondary lining concrete trolley 1. A cantilever frame 5 is provided at the rear end face of the secondary lining concrete trolley 1. A pair of transversely spaced linear displacement sliding blocks are arranged longitudinally on the cantilever frame 5. A movable frame 13 is slidably connected to the pair of linear displacement sliding blocks. The movable frame 13 is provided with a drive component for driving its axial movement along the linear displacement sliding blocks and a circumferential spray pipe 14 located on the radial outer periphery of the cantilever frame 5. A circumferential spray nozzle 15 for spraying water onto the surface of the tunnel secondary lining concrete is arranged on the circumferential lining concrete trolley 1. A water storage tank 2 is provided on the secondary lining concrete trolley 1. The water storage tank 2 is connected to a booster pump 3 for supplying water to the circumferential spray pipe 14.

[0026] Specifically, a cantilever frame 5 is installed on the upper part of the end face of the rear end of the secondary lining concrete trolley 1 (in the direction of secondary lining concrete pouring). The cantilever frame 5 is a cuboid frame structure, with one end connected and fixed to the rear end of the secondary lining concrete trolley 1, and the other end extending longitudinally. The curvature of the circumferential water spray pipe 14 is basically consistent with the curvature of the inner surface of the secondary lining concrete. The circumferential water spray nozzle 15 is installed at an outward angle along the outer circle of the circumferential water spray pipe 14, so that the sprayed water is sprayed towards the inner surface of the secondary lining concrete.

[0027] The water storage tank 2 is made of stainless steel and is equipped with a liquid level sensor inside to monitor the water level.

[0028] Furthermore, the linear displacement slide block includes a slide rail 9 and a sliding sleeve 10. The slide rail 9 is mounted on the cantilever frame 5, the sliding sleeve 10 is slidably nested on the slide rail 9, and the movable frame 13 is mounted on the sliding sleeve 10.

[0029] Specifically, a pair of slide rails 9 are laterally spaced on both sides of the upper transverse center of the cantilever frame 5, and the tops of a pair of sliding sleeves 10 are connected to the lower part of the movable frame 13. The upper end of the movable frame 13 is an arc-shaped frame, and a circumferential water spray pipe 14 is connected to the arc-shaped frame of the movable frame. The circumferential water spray pipe 14 surrounds the movable frame 13 and extends towards the outer periphery of the lateral sides of the movable frame 13 at both ends. The sliding sleeves 10 allow the movable frame 13 to move axially along the pair of slide rails 9.

[0030] Furthermore, the drive assembly includes a drive motor 8 and a friction drive wheel 6. The drive motor 8 is vertically mounted on the movable frame 13, and the friction drive wheel 6 is mounted at the output end of the drive motor 8. The radial outer periphery of the friction drive wheel 6 is in frictional contact with the side of the slide rail 9 on one side.

[0031] Specifically, a drive motor 8 is installed on one side of the lower part of the movable frame 13. A friction drive wheel 6 is vertically sleeved on the output end of the drive motor 8. The friction drive wheel 6 is in close contact with the side of the slide rail 9. The drive motor 8 drives the friction drive wheel 6 to rotate, and the friction drive wheel 6 rotates and moves along the side of the slide rail 9, driving the movable frame 13 to move. To increase friction, the side of the slide rail 9 can be made into a friction surface, such as knurled.

[0032] As a preferred option, the drive components are a pair. In this case, drive motors 8 are installed on both sides of the lower part of the movable frame 13, and friction drive wheels 6 are fitted onto the output end of each drive motor 8. The pair of friction drive wheels 6 respectively fit into the slide rail 9.

[0033] Alternatively, the drive assembly can include a drive motor, a gear, and a rack. The drive motor is vertically mounted on the movable frame, with a gear at its output end and the rack positioned on the side of the slide rail 9, meshing with the rack. In this case, a drive motor 8 is installed on one side of the lower part of the movable frame 13, with a gear vertically mounted at its output end. The movement of the movable frame is achieved by the drive motor 8 driving the gear to move along the rack.

[0034] As a preferred embodiment, the drive components are a pair. In this case, drive motors 8 are installed on both sides of the lower part of the moving frame 13, gears are installed at the output end of each drive motor 8, and racks are provided on the side of each slide rail 9. A pair of gears mesh with a pair of racks respectively.

[0035] Furthermore, to prevent one end of the cantilever 5 from sagging, a T-shaped frame 20 is provided at one longitudinal end of the cantilever 5. A tension rope 19 is connected to the upper part of the T-shaped frame 20, and one end of the tension rope 19 extends to connect to the secondary lining concrete trolley 1. The outer end of the cantilever 5 is pulled by the tension rope 19, so that the cantilever 5 is always in a horizontal state.

[0036] Furthermore, a solenoid valve 4 is connected to the water storage tank 2. One end of the solenoid valve 4 is connected to the booster pump 3, and one end of the booster pump 3 is connected to the circumferential spray pipe 14 through the water supply hose 16.

[0037] Specifically, the lower outlet of the water storage tank 2 is connected to a solenoid valve 4, the outlet of the solenoid valve 4 is connected to a booster pump 3, and the output port of the booster pump 3 is connected to a water supply hose 16. The booster pump 3 is an electric booster pump.

[0038] Furthermore, a support chain 17 is longitudinally arranged inside the cantilever frame 5. Both ends of the support chain 17 extend longitudinally along the cantilever frame 5. One end of the support chain 17 is fixed to the secondary lining concrete trolley 1, and the other end is flipped upward and connected to the upper part of the cantilever frame 5. The water supply hose 16 is placed on the support chain 17. The support chain 17 is used to support the water supply hose 16 inside the cantilever frame 5 and can prevent the water supply hose 16 from falling.

[0039] Furthermore, the circumferential water spray pipes 14 are arranged in a pair at longitudinal intervals. A horizontal spray pipe 7 is connected between the two transverse ends of the pair of circumferential water spray pipes 14. Both ends of the horizontal spray pipe 7 are connected to the pair of circumferential water spray pipes 14. Horizontal spray nozzles 21 are arranged in an array on the horizontal spray pipe 7. Multiple horizontal spray nozzles 21 are installed outwardly along the outer side of the horizontal spray pipe 7, so that the sprayed water is sprayed towards the inner surfaces of both ends of the tunnel secondary lining concrete.

[0040] Of course, as a preferred option, multiple horizontal spray pipes 7 can be arrayed between a pair of circumferential spray pipes 14. Multiple horizontal spray nozzles 21 are arrayed on each horizontal spray pipe 7. The multiple horizontal spray nozzles 21 and multiple circumferential spray nozzles 15 can form a uniformly distributed circumferential spray surface, making the spraying more uniform.

[0041] Furthermore, a guide plate 18 is installed on the mobile frame 13. The guide plate 18 extends laterally through the mobile frame 13, with both ends of the guide plate 18 extending towards the outer ends of the circumferential water spray pipe 14 and located at the lower end of the circumferential water spray pipe 14. The guide plate 18 is used to collect dripping water from the surface of the tunnel secondary lining concrete after spraying. After collecting the dripping water through the guide plate 18, it is discharged from both ends of the guide plate 18, preventing the dripping water after spraying from falling on other passing vehicles or personnel and affecting traffic.

[0042] Furthermore, a controller 12 is installed on the secondary lining concrete trolley 1, and limit switches 11 are installed on both longitudinal sides of the moving frame 13. The limit switches 11 are electrically connected to the controller 12. When the moving frame 13 moves to the longitudinal limit position at both ends of the cantilever frame 5, the corresponding limit switch 11 is triggered and a signal is sent to the controller 12 through the limit switch 11. The controller 12 controls the drive motor 8 to stop running to prevent damage to the device.

[0043] Meanwhile, the solenoid valve 4, the booster pump 3, and the drive motor 8 are all electrically connected to the controller 12. The controller 12 is a PLC programmable controller, which can realize coordinated control and automated operation of various components.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A water spraying curing device for tunnel secondary lining concrete, characterized in that: The system includes a secondary lining concrete trolley (1), a cantilever frame (5) is provided on the rear end face of the secondary lining concrete trolley (1), a pair of transversely spaced linear displacement sliding blocks are provided on the cantilever frame (5) along the longitudinal direction, a movable frame (13) is slidably connected to the pair of linear displacement sliding blocks, the movable frame (13) is provided with a drive assembly for driving it to move axially along the linear displacement sliding blocks and a circumferential water spray pipe (14) located on the radial outer periphery of the cantilever frame (5), the circumferential water spray pipe (14) is arrayed with circumferential water spray nozzles (15) for spraying water onto the surface of the tunnel secondary lining concrete, the secondary lining concrete trolley (1) is provided with a water storage tank (2), the water storage tank (2) is connected to a booster pump for supplying water to the circumferential water spray pipe (14).

2. The tunnel secondary lining concrete spraying curing device according to claim 1, characterized in that: The linear displacement slide block includes a slide rail (9) and a sliding sleeve (10). The slide rail (9) is mounted on the cantilever frame (5), and the sliding sleeve (10) is slidably nested on the slide rail (9). The movable frame (13) is mounted on the sliding sleeve (10).

3. The tunnel secondary lining concrete spraying curing device according to claim 2, characterized in that: The drive assembly includes a drive motor (8) and a friction drive wheel (6). The drive motor (8) is vertically mounted on the movable frame (13). The friction drive wheel (6) is mounted at the output end of the drive motor (8). The radial outer periphery of the friction drive wheel (6) is in frictional contact with the side of the slide rail (9).

4. The tunnel secondary lining concrete spraying curing device according to claim 2, characterized in that: The drive assembly includes a drive motor (8), a gear and a rack. The drive motor (8) is vertically mounted on the movable frame (13). The output end of the drive motor (8) is provided with the gear. The rack is provided on the side of the slide rail (9). The gear meshes with the rack.

5. The tunnel secondary lining concrete spraying curing device according to claim 1, characterized in that: A T-shaped frame (20) is provided at one longitudinal end of the cantilever frame (5), and a tension rope (19) is connected to the upper part of the T-shaped frame (20). One end of the tension rope (19) extends to connect to the secondary lining concrete trolley (1).

6. A water spraying curing device for tunnel secondary lining concrete according to claim 1 or 2, characterized in that: The water storage tank (2) is connected to a solenoid valve (4), one end of which is connected to the booster pump (3), and one end of the booster pump (3) is connected to the circumferential spray pipe (14) through a water supply hose (16).

7. A water spraying curing device for tunnel secondary lining concrete according to claim 6, characterized in that: The upper part of the cantilever (5) is provided with a support chain (17) along the longitudinal direction, and the water supply hose (16) is inserted into the support chain (17).

8. A water spraying curing device for tunnel secondary lining concrete according to claim 7, characterized in that: The circumferential spray pipes (14) are a pair arranged longitudinally at intervals. At least one horizontal spray pipe (7) is connected between the two ends of the pair of circumferential spray pipes (14). The two ends of the horizontal spray pipe (7) are connected to the circumferential spray pipes (14). Horizontal spray nozzles (21) are arranged in an array on the horizontal spray pipe (7).

9. A water spraying curing device for tunnel secondary lining concrete according to claim 8, characterized in that: A guide plate (18) is provided on the movable frame (13). The guide plate (18) extends laterally through the movable frame (13). Both ends of the guide plate (18) extend toward the outer ends of the two sides of the circumferential water spray pipe (14) and are located at the lower end of the circumferential water spray pipe (14).

10. A water spraying curing device for tunnel secondary lining concrete according to claim 9, characterized in that: The secondary lining concrete trolley (1) is equipped with a controller (12), and the moving frame (13) is equipped with limit switches (11) on both longitudinal sides. The solenoid valve (4), booster pump (3), drive motor (8) and limit switches (11) are all electrically connected to the controller (12).

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