A subway shield tunnel steel ring reinforcing device

Abstract

This invention relates to the field of tunnel steel ring technology, specifically disclosing a steel ring reinforcement device for subway shield tunnels. The device includes a base with supporting legs at its bottom, pulleys connecting the legs, workbenches on both sides of the top of the base, side support rods on both sides of the workbenches, a support frame on the top of the base, a movable plate in the middle of the support frame, upper support rods on both sides of the support frame, and a top support rod on the top of the support frame. One end of each of the side support rods, upper support rods, and top support rod is connected to an arc-shaped frame, with a roller connected to the middle of the arc-shaped frame. A rotating disk is connected to the middle of the top of the base, and a top rod is connected to the side wall of the rotating disk. Through the support rods and arc-shaped frame in this device, the arc-shaped frame forms a semi-circular ring that abuts against the inner wall of the tunnel. Steel plates can then slide directly through the gap between the arc-shaped frame and the tunnel inner wall, dragging the steel plates onto the tunnel inner wall for easy installation without the need for a robotic arm.

Description

Technical Field

[0001] This invention relates to the field of tunnel steel ring technology, and more specifically, to a steel ring reinforcement device for subway shield tunnels. Background Technology

[0002] During tunnel construction, a layer of steel plates needs to be laid on the inner wall of the tunnel to increase its stability.

[0003] The existing steel plate laying method involves using a robotic arm to move the steel plates to the inner wall of the tunnel for bonding construction. However, the robotic arm itself is too large and occupies a lot of space in the tunnel, making construction inconvenient. It also makes it difficult for construction workers to fix the steel plates near the top of the tunnel. An additional lifting structure is needed to reach the steel plates near the top of the tunnel, resulting in a complicated steel plate laying process and a long construction period. Summary of the Invention

[0004] The purpose of this invention is to provide a steel ring reinforcement device for subway shield tunnels, which solves the problem that when laying steel plates in the tunnel, the large size of the robotic arm occupies too much tunnel space, making it difficult to use other auxiliary equipment, and at the same time, it is difficult for construction personnel to access the steel plates near the top of the tunnel for construction and fixation.

[0005] This invention is achieved through the following technical solution: This invention provides a steel ring reinforcement device for subway shield tunnels, including a base, with supporting legs at the bottom of the base and pulleys connected between the supporting legs. Workbenches are connected to both sides of the top of the base, with side support rods connected to both sides of the workbenches. A support frame is connected to the top of the base, with a movable plate connected to the middle of the support frame. Upper support rods are connected to both sides of the support frame, and a top support rod is connected to the top of the support frame. One end of each of the side support rods, upper support rods, and top support rod is connected to an arc-shaped frame, with a roller connected to the middle of the arc-shaped frame. A rotating disk is connected to the middle of the top of the base, and a top rod is connected to the side wall of the rotating disk.

[0006] Preferably, the side struts, upper struts, and top struts are all electrically telescopic struts.

[0007] Preferably, the arc frame is composed of several curved rods arranged in a semi-circular shape.

[0008] Preferably, the rotating disk also includes a rotating shaft and a drive motor, with the rotating shaft located at the center of the top of the base and the drive motor connected to one side of the base.

[0009] Preferably, one end of the rotating shaft passes through the base and is connected to the drive motor, and the rotating shaft passes through the rotating disk for connection.

[0010] Preferably, the movable plate further includes a deflection opening, a limiting groove, a limiting block, a slider, and a spring telescopic rod. The deflection opening is located in the middle of the movable plate, the limiting groove is located on both sides of the middle of the deflection opening, the limiting block is connected to the middle of the deflection opening, the slider is located on one side of the limiting block, and the spring telescopic rod is located on one side of the limiting block.

[0011] Preferably, a base plate is provided near the bottom of both ends of the deflection opening, and several limiting blocks are provided, which are connected in the deflection opening.

[0012] Preferably, the side support rod, the upper support rod, and the top support rod all pass between the two limiting blocks, and the spring telescopic rod is set at one end of the two limiting blocks.

[0013] Preferably, a push handle is also provided on one side of the base, and the support frame, worktable and movable plate are all connected by bolts.

[0014] Preferably, the arc frame further includes a connecting seat, which is located on the inward side of the arc frame, and the roller is rotatably connected between the two connecting seats.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects: 1. The device uses a strut and an arc-shaped frame to form a semi-circular ring that rests against the inner wall of the tunnel. The steel plate can then slide directly through the gap between the arc-shaped frame and the inner wall of the tunnel to drag it onto the inner wall of the tunnel, facilitating the installation of the steel plate without the need for a robotic arm to control the operation.

[0016] 2. The device is also equipped with a rotating disc. Through the top rod connected to the rotating disc, the steel plate can be temporarily supported and fixed after it is moved to the designated position along the arc frame. This makes it convenient for construction personnel to fix the plate during construction without having to pull it continuously or making it difficult to fit against the inner wall of the tunnel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the state structure of the present invention.

[0019] Figure 3 This is a side view of the arc-shaped frame of the present invention.

[0020] Figure 4 This is a side view of the base structure of the present invention.

[0021] Figure 5 This is a top view of the movable plate of the present invention.

[0022] Figure 6This is a side view cross-sectional structural diagram of the movable plate of the present invention.

[0023] Reference numerals: 1-base, 101-support leg, 102-pulley, 103-worktable, 104-side support rod, 2-rotating disk, 201-top rod, 202-rotating shaft, 203-drive motor, 3-support frame, 301-movable plate, 302-upper support rod, 303-top support rod, 304-deflection opening, 3041-limiting slide, 305-limiting block, 3051-slider, 3052-spring telescopic rod, 4-arc frame, 401-connecting seat, 402-roller. Detailed Implementation

[0024] The following is combined with Figures 1 to 6 The present invention will be described in detail below.

[0025] A steel ring reinforcement device for subway shield tunnels includes a base 1, with support legs 101 at the bottom of the base 1 and pulleys 102 connecting the support legs 101. Workbenches 103 are connected to both sides of the top of the base 1, with side support rods 104 connected to both sides of the workbenches 103. A support frame 3 is connected to the top of the base 1, with a movable plate 301 connected to the middle of the support frame 3. Upper support rods 302 are connected to both sides of the support frame 3, and a top support rod 303 is connected to the top of the support frame 3. The side support rods 104, upper support rods 302, and... One end of the top support rod 303 is connected to an arc-shaped frame 4. The middle of the arc-shaped frame 4 is connected to a roller 402. The top center of the base 1 is connected to a rotating disk 2. The side wall of the rotating disk 2 is connected to a top rod 201. The side support rod 104, the upper support rod 302 and the top support rod 303 are all electric telescopic rods. The arc-shaped frame 4 is composed of several curved rods in a semi-circular shape. The arc-shaped frame 4 also includes a connecting seat 401. The connecting seat 401 is located on the inward side of the arc-shaped frame 4. The roller 402 is rotatably connected between the two connecting seats 401.

[0026] First, the base 1 is moved by sliding along the track in the tunnel using the pulleys 102 on the base 1. Then, the support legs 101 at the bottom of the base 1 are extended to support the base 1 on the ground to stabilize it. Next, the work platform 103 is connected to the top of the base 1 on both sides using bolts and diagonal braces, so that the construction workers can move on the work platform 103. At the same time, side support rods 104 are connected to both sides of the work platform 103. By extending and retracting the side support rods 104, the arc frame 4 connected at one end is pressed against the inner wall of the tunnel, thus completing the construction of a section of the arc frame 4.

[0027] Then, a support frame 3 is built on the top of the base 1 with bolts. A movable plate 301 is connected to the middle of the support frame 3 with bolts, so that construction workers can carry out construction at a higher position. At the same time, upper support rods 302 are connected to both sides of the support frame 3 to complete the construction of another section of the arc frame 4. Finally, the last section of the arc frame 4 is built by the top support rod 303 on the support frame 3. Finally, several arc frames 4 are spliced ​​together to form a semi-circular ring that fits against the inner wall surface of the tunnel.

[0028] When installing steel plates on the tunnel inner wall of the part that the arc frame 4 abuts, one end of the steel plate can be passed through the arc frame 4, and then the steel plate is attached to one side of the roller 402. The rolling of the roller 402 reduces the friction when the steel plate is dragged, allowing the steel plate to move along the trajectory of the arc frame 4 to the upper part of the tunnel for installation. The steel plate is dragged by connecting a hand chain hoist at a position away from the steel plate and at a position away from the installation position. The hand chain hoist is used to pull the steel plate along the arc frame 4, thereby completing the installation of the steel plate.

[0029] Furthermore, the rotating disk 2 also includes a rotating shaft 202 and a drive motor 203. The rotating shaft 202 is located at the center of the top of the base 1, and the drive motor 203 is connected to one side of the base 1. One end of the rotating shaft 202 passes through the base 1 and is connected to the drive motor 203. The rotating shaft 202 passes through the rotating disk 2 for connection. The movable plate 301 also includes a deflection opening 304, a limiting groove 3041, a limiting block 305, a slider 3051, and a spring telescopic rod 3052. The deflection opening 304 is located at the center of the movable plate 301, and the limiting groove 3041 is located on both sides of the center of the deflection opening 304. The limiting block 305 is connected to the deflection opening 304. In the middle of the deflection opening 304, the slider 3051 is set on one side of the limiting block 305, and the spring telescopic rod 3052 is set on one side of the limiting block 305. The bottom plate is set near both ends of the deflection opening 304. There are several limiting blocks 305, and the limiting blocks 305 are connected in the deflection opening 304. The side support rod 104, the upper support rod 302 and the top support rod 303 all pass through the space between two limiting blocks 305. The spring telescopic rod 3052 is set at one end of the two limiting blocks 305. A push handle is also set on one side of the base 1. The support frame 3, the worktable 103 and the movable plate 301 are all connected by bolts.

[0030] At the same time, when the steel plate is moved to the designated position, the electric extension and retraction of the top rod 201 is used to abut against the steel plate, so that the steel plate is temporarily supported and fixed to the inner wall of the tunnel, so as to facilitate the construction personnel to complete the fixing construction of the steel plate. Meanwhile, by turning on the drive motor 203 to control the rotation of the rotating shaft 202, the top rod 201 can change the angle in the deflection opening 304 to abut against the steel plate at different positions for fixing.

[0031] Finally, when the top rod 201 deflects, it will move against the limiting block 305 in the deflection opening 304, causing the limiting block 305 to slide in the deflection opening 304. This will block the deflection opening 304 without affecting the deflection of the top rod 201, preventing construction workers from stepping into the hole or construction tools from slipping down from the deflection opening 304. Then, the bracket and device on the base 1 are removed and placed directly in the middle of the base 1. The support leg 101 is then retracted, allowing the base 1 to be moved by pushing the handle. This allows the base to pass through narrow spaces, such as tunnel openings with equipment, to facilitate the laying of the next section of steel plate.

[0032] The following is a detailed implementation process of the present invention. First, the base 1 is moved by sliding along the track in the tunnel using pulleys 102 on the base 1. Then, the support legs 101 at the bottom of the base 1 extend to support the base 1 on the ground for stability. Next, the work platform 103 is connected to both sides of the top of the base 1 using bolts and diagonal braces, allowing construction workers to move on the work platform 103. At the same time, side support rods 104 are connected to both sides of the work platform 103. The extension and retraction of the side support rods 104 causes one end of the arc-shaped frame 4 to be fitted against the inner wall of the tunnel, completing the construction of a section of the arc-shaped frame 4. Then, a support frame 3 is built on the top of the base 1 using bolts. A movable plate 301 is connected to the middle of the support frame 3 using bolts, allowing construction workers to work at a higher level. At the same time, a movable plate 301 is also connected to both sides of the support frame 3. Connect the upper support rod 302 to complete the construction of another section of the arc frame 4. Finally, the last section of the arc frame 4 is constructed using the top support rod 303 on the support frame 3. Several arc frames 4 are then spliced ​​together to form a semi-circular ring that fits against the inner wall of the tunnel. When installing steel plates on the inner wall of the tunnel where the arc frame 4 abuts, one end of the steel plate can be passed between the arc frames 4, and then the steel plate is attached to one side of the roller 402. The rolling of the roller 402 reduces the friction when the steel plate is dragged, allowing the steel plate to move along the trajectory of the arc frame 4 to the upper part of the tunnel for installation. The steel plate is dragged by connecting a hand chain hoist at a position away from the steel plate and at a position away from the installation location. The hand chain hoist pulls the steel plate along the arc frame 4, thus completing the construction of the steel plate.

[0033] Simultaneously, when the steel plate moves to the designated position, the electric extension and retraction of the top rod 201 abuts against the steel plate, temporarily supporting it against the inner wall of the tunnel. This facilitates the construction workers in fixing the steel plate. At the same time, by activating the drive motor 203 to control the rotation of the rotating shaft 202, the top rod 201 can change its angle within the deflection opening 304 to abut against the steel plate at different positions for fixation. Finally, when the top rod 201 deflects, it abuts against the limiting block 305 in the deflection opening 304 and moves accordingly. The movable limiting block 305 slides in the deflection opening 304, thereby blocking the deflection opening 304 without affecting the deflection of the top rod 201, preventing construction workers from stepping into the hole or construction tools from slipping down from the deflection opening 304. Then, the bracket and device on the base 1 are removed and placed directly in the middle of the base 1. The support leg 101 is then retracted, so that the base 1 can be moved by pushing the handle. This allows the base to pass through narrow spaces such as tunnel openings with equipment, making it easier to lay the next section of steel plate.

Claims

1. A steel ring reinforcement device for subway shield tunnels, comprising a base (1), characterized in that, The base (1) is provided with support legs (101) at the bottom, and pulleys (102) are connected between the support legs (101). The top two sides of the base (1) are connected with worktables (103), and the worktables (103) are connected with side support rods (104) on both sides. The top of the base (1) is connected with a support frame (3), and a movable plate (301) is connected to the middle of the support frame (3). The upper support rods (302) are connected to both sides of the support frame (3), and a top support rod (303) is connected to the top of the support frame (3). An arc frame (4) is connected to one end of the side support rod (104), the upper support rod (302), and the top support rod (303). A roller (402) is connected to the middle of the arc frame (4). A rotating disk (2) is connected to the middle of the top of the base (1), and a top rod (201) is connected to the side wall of the rotating disk (2). The movable plate (301) further includes a deflection opening (304), a limiting groove (3041), a limiting block (305), a slider (3051), and a spring telescopic rod (3052). The deflection opening (304) is located in the middle of the movable plate (301), the limiting groove (3041) is located on both sides of the middle of the deflection opening (304), the limiting block (305) is connected to the middle of the deflection opening (304), the slider (3051) is located on one side of the limiting block (305), and the spring telescopic rod (3052) is located on one side of the limiting block (305). The deflection opening (304) is provided with a base plate near the bottom of both ends, and there are several limiting blocks (305), and the limiting blocks (305) are connected in the deflection opening (304); The side support rod (104), upper support rod (302) and top support rod (303) all pass between the two limiting blocks (305), and the spring telescopic rod (3052) is located at one end of the two limiting blocks (305).

2. The steel ring reinforcement device for subway shield tunnels according to claim 1 is characterized in that the side support rod (104), the upper support rod (302) and the top support rod (303) are all electric telescopic rods.

3. The steel ring reinforcement device for subway shield tunnels according to claim 1 is characterized in that the arc frame (4) is composed of several curved rods arranged in a semi-circular shape.

4. The subway shield tunnel steel ring reinforcement device according to claim 1 is characterized as follows: the rotating disk (2) further includes a rotating shaft (202) and a transmission motor (203), the rotating shaft (202) is set in the middle of the top of the base (1), and the transmission motor (203) is connected to one side of the base (1).

5. A steel ring reinforcement device for subway shield tunnels according to claim 4, characterized in that one end of the rotating shaft (202) passes through the base (1) and is connected to the transmission motor (203), and the rotating shaft (202) passes through the rotating disk (2) for connection.

6. The subway shield tunnel steel ring reinforcement equipment according to claim 1 is characterized in that a push handle is provided on one side of the base (1), and the support frame (3), the workbench (103) and the movable plate (301) are all connected by bolts.

7. A steel ring reinforcement device for subway shield tunnels according to claim 1, characterized in that the arc frame (4) further includes a connecting seat (401), the connecting seat (401) is disposed on the inward side of the arc frame (4), and the roller (402) is rotatably connected between the two connecting seats (401).

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