Guide rail for shield tunnel segment

Abstract

The utility model relates to the technical field of tunnel segments, in particular to a guide rail for shield tunnel segments, which comprises a tunnel, segments arranged on the inner wall of the tunnel, connecting blocks arranged on the inner wall of the segments, two connecting blocks as a group, hanging lugs arranged at the tops of the connecting blocks, chain blocks connected to the middles of the hanging lugs, connecting bearings arranged at the tops of the connecting blocks, and a guide rail arranged on the guide rail. A rolling shaft is connected between the connecting bearings, and a limiting assembly is arranged on one side of the connecting block. By means of the connecting blocks and the rolling shafts arranged in the device, the steel plates can be pulled and laid through the chain blocks and can pass through the rolling shafts and the positions between the pipe pieces, the steel plates are directly laid according to the shapes of the pipe pieces, and laying of the steel plates can be completed without a mechanical arm. The problem that when an existing duct piece is used for laying a steel plate, laying is completed through a mechanical arm, and due to the fact that the mechanical arm occupies too much tunnel space, the space for constructors to move in a tunnel becomes small is solved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel segment technology, and more specifically, to a guide rail for use on shield tunnel segments. Background Technology

[0002] Tunnel segments are concrete layers laid on the inner wall of a tunnel. When tunnel segments need to be repaired, a steel plate is temporarily laid on the segments as a support to prevent further damage and falling debris.

[0003] The existing steel plate laying is done by robotic arms. However, due to the size of the robotic arms themselves, they occupy a lot of construction space in the tunnel, reducing the space available for movement and making it inconvenient for construction workers to carry out their work. Utility Model Content

[0004] The purpose of this utility model is to provide a guide rail for shield tunnel segments, which solves the problem that when laying steel plates for existing segments, the use of robotic arms to complete the laying results in excessive tunnel space occupied by the robotic arms, thus reducing the space available for construction workers to move around in the tunnel.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model provides a guide rail for shield tunnel segments, including a tunnel, segments arranged on the inner wall of the tunnel, connecting blocks arranged on the inner wall of the segments, two connecting blocks in a group, a hanging lug on the top of the connecting block, a hand-operated hoist connected to the middle of the hanging lug, a connecting bearing on the top of the connecting block, rollers connected between the connecting bearings, and a limiting component on one side of the connecting block.

[0007] Preferably, the connecting blocks are bolted to the pipe segments, and several connecting blocks are arranged in an array.

[0008] Preferably, both ends of the roller are rotatably connected to the connecting bearing.

[0009] Preferably, the limiting component includes a deflection groove, a deflection rod, and a limiting wheel. The deflection groove is disposed on one side of the connecting block, the deflection rod is connected to the middle of the deflection groove, and the limiting wheel is connected to one end of the deflection rod.

[0010] Preferably, the deflection groove is located on one side opposite to the two connecting blocks, and the middle part of the deflection groove is inclined on both sides.

[0011] Preferably, one end of the deflection rod is hinged to the middle of the deflection groove, and torsion springs are provided at both ends of the hinge shaft at one end of the deflection rod.

[0012] Preferably, the limiting wheel is located at the end of the deflection rod away from the hinge axis, and the limiting wheel is rotatably connected to one end of the deflection rod.

[0013] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0014] 1. The steel plate is laid by pulling and laying it with a hand-operated hoist through the connecting block and roller in the device. It will pass between the pipe segments through the roller, so that the steel plate is laid directly according to the shape of the pipe segment. The steel plate can be laid without the need for a robotic arm.

[0015] 2. The device is also equipped with a limiting component, which can provide certain resistance and restriction on both sides of the steel plate when the steel plate is pulled through the roller, so that the steel plate will not shift laterally during the pulling and laying process. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the overall structure of the connecting block and roller of this utility model.

[0018] Figure 3 This is a top view cross-sectional structural diagram of the connecting block of this utility model.

[0019] Reference numerals: 1-tunnel, 101-segment, 2-connecting block, 201-hanging lug, 202-connecting bearing, 2021-roller, 203-deflection groove, 2031-deflection rod, 2032-limiting wheel, 3-hand chain hoist. Detailed Implementation

[0020] The following is combined with Figures 1 to 3 This utility model will be described in detail.

[0021] A guide rail for shield tunnel segments includes a tunnel 1, segments 101 are arranged on the inner wall of the tunnel 1, connecting blocks 2 are arranged on the inner wall of segments 101, two connecting blocks 2 are arranged in a group, a lug 201 is arranged on the top of the connecting block 2, a hand chain hoist 3 is connected to the middle of the lug 201, a connecting bearing 202 is arranged on the top of the connecting block 2, a roller 2021 is connected between the connecting bearings 202, a limiting component is arranged on one side of the connecting block 2, the connecting blocks 2 are bolted to the segments 101, several connecting blocks 2 are arranged in a group, and the two ends of the roller 2021 are rotatably connected to the connecting bearings 202.

[0022] First, connecting blocks 2 are set in pairs on the inner wall of the tunnel segment 101. The array of connecting blocks 2 are arranged around the inner wall of the tunnel segment 101. When the segment 101 needs to be repaired, a steel plate needs to be laid on the surface of the tunnel segment 101 for support. When laying the steel plate, a hand chain hoist 3 is first connected to the connecting block 2 near the top through the lug 201. Then, one end of the hand chain hoist 3 is connected to one end of the steel plate. At the same time, the connecting hook of the hand chain hoist 3 passes through the roller 2021 between the segment 101 and the steel plate, and then connects to one end of the steel plate. The steel plate is then pulled through the roller 2021 between the segment 101 by the hand chain hoist 3 to smoothly lay the steel plate on the inner wall of the tunnel segment 101.

[0023] At the same time, when the steel plate is pulled between the roller 2021 and the segment 101, the steel plate will adhere to the roller 2021 due to its own weight. Since the two ends of the roller 2021 are rotatably connected to the connecting bearing 202, the movement of the steel plate on the roller 2021 will drive the roller 2021 to rotate, so as to more smoothly drag the steel plate to move.

[0024] Meanwhile, each set of connecting blocks 2 can be connected to a hand chain hoist 3. After the steel plate on one side is laid, the connecting block 2 near the bottom is set with a hanging ear 201 to pull the bottom of the steel plate to keep the steel plate in the laying position, so that the center of gravity will not shift to the other side because one end exceeds the top center of the pipe segment 101, causing the steel plate to slide off the roller 2021 to one side.

[0025] Furthermore, the limiting component includes a deflection groove 203, a deflection rod 2031, and a limiting wheel 2032. The deflection groove 203 is disposed on one side of the connecting block 2. The deflection rod 2031 is connected to the middle of the deflection groove 203. The limiting wheel 2032 is connected to one end of the deflection rod 2031. The deflection groove 203 is disposed on one side opposite to the two connecting blocks 2, and the middle of the deflection groove 203 is inclined on both sides. One end of the deflection rod 2031 is hinged to the middle of the deflection groove 203, and torsion springs are provided at both ends of the hinge shaft at one end of the deflection rod 2031. The limiting wheel 2032 is disposed at the end of the deflection rod 2031 away from the hinge shaft, and the limiting wheel 2032 is rotatably connected to one end of the deflection rod 2031.

[0026] Simultaneously, when the steel plate passes through the roller 2021, it will pass between the deflection grooves 203 on opposite sides of the two connecting blocks 2. Then, the steel plate will contact the limiting wheel 2032 connected to the deflection rod 2031 in the deflection groove 203. The limiting wheel 2032 restricts the left and right displacement of the steel plate and prevents lateral movement during the laying process. When the steel plate contacts the limiting wheel 2032, if the width of the steel plate is large, it will squeeze the limiting wheel 2032 during the movement and deflect it through the deflection rod 2031 to widen the distance between the two limiting wheels 2032, thereby adapting to the width of the steel plate. The torsion spring of the hinge part of the deflection rod 2031 will also cause the limiting wheel 2032 to generate a reset deflection force to apply a certain pressure to limit the steel plate and prevent the steel plate from moving laterally.

[0027] The following is a detailed implementation process of this utility model. First, connecting blocks 2 are set in pairs on the pipe segments 101 of the inner wall of tunnel 1. The array of connecting blocks 2 are arranged around the inner wall of the pipe segments 101. Then, when the pipe segments 101 need to be repaired, a steel plate needs to be laid on the surface of the pipe segments 101 for support. When laying the steel plate, a hand-operated hoist 3 is first connected to the connecting block 2 near the top through the hanging lug 201. Then, one end of the hand-operated hoist 3 is connected to one end of the steel plate. At the same time, the connecting hook of the hand-operated hoist 3 passes through the roller 2021 between the pipe segment 101 and then connects to one end of the steel plate. The steel plate is then pulled through the roller 2021 between the pipe segment 101 by the hand-operated hoist 3 to smoothly lay the steel plate on the inner wall of the pipe segment 101. When the steel plate is moved between the roller 2021 and the segment 101, the steel plate will adhere to the roller 2021 due to its own weight. Since both ends of the roller 2021 are rotatably connected to the connecting bearing 202, the movement of the steel plate against the roller 2021 will cause the roller 2021 to rotate, thus more smoothly dragging the steel plate. At the same time, the lugs 201 on each set of connecting blocks 2 can be connected to the hand chain hoist 3. After the steel plate on one side is laid, the lugs 201 are set on the connecting block 2 near the bottom to pull and connect the bottom of the steel plate, so that the steel plate is kept in the laying position and will not slip off the roller 2021 to one side because one end exceeds the center top of the segment 101 and the center of gravity shifts to the other side.

[0028] Simultaneously, when the steel plate passes through the roller 2021, it will pass between the deflection grooves 203 on opposite sides of the two connecting blocks 2. Then, the steel plate will contact the limiting wheel 2032 connected to the deflection rod 2031 in the deflection groove 203. The limiting wheel 2032 restricts the left and right displacement of the steel plate and prevents lateral movement during the laying process. When the steel plate contacts the limiting wheel 2032, if the width of the steel plate is large, it will squeeze the limiting wheel 2032 during the movement and deflect it through the deflection rod 2031 to widen the distance between the two limiting wheels 2032, thereby adapting to the width of the steel plate. The torsion spring of the hinge part of the deflection rod 2031 will also cause the limiting wheel 2032 to generate a reset deflection force to apply a certain pressure to limit the steel plate and prevent the steel plate from moving laterally.

Claims

1. A guide rail for shield tunnel segments, comprising a tunnel (1), wherein segments (101) are arranged on the inner wall of the tunnel (1), characterized in that, The inner wall of the tube segment (101) is provided with a connecting block (2), the connecting blocks (2) are in pairs, the top of the connecting block (2) is provided with a hanging ear (201), the middle of the hanging ear (201) is connected to a hand chain hoist (3), the top of the connecting block (2) is provided with a connecting bearing (202), the connecting bearings (202) are connected with a roller (2021), and a limiting component is provided on one side of the connecting block (2).

2. A guide rail for use on shield tunnel segments according to claim 1, characterized in that, The connecting block (2) is connected to the pipe segment (101) by bolts, and several connecting blocks (2) are arranged in a row.

3. A guide rail for use on shield tunnel segments according to claim 1, characterized in that, The two ends of the roller (2021) are rotatably connected in the connecting bearing (202).

4. A guide rail for use on shield tunnel segments according to claim 1, characterized in that, The limiting component includes a deflection groove (203), a deflection rod (2031), and a limiting wheel (2032). The deflection groove (203) is disposed on one side of the connecting block (2), the deflection rod (2031) is connected to the middle of the deflection groove (203), and the limiting wheel (2032) is connected to one end of the deflection rod (2031).

5. A guide rail for use on shield tunnel segments according to claim 4, characterized in that, The deflection groove (203) is disposed on one side opposite to the two connecting blocks (2), and the middle two sides of the deflection groove (203) are inclined.

6. A guide rail for use on shield tunnel segments according to claim 4, characterized in that, One end of the deflection rod (2031) is hinged to the middle of the deflection groove (203), and torsion springs are provided at both ends of the hinge shaft at one end of the deflection rod (2031).

7. A guide rail for use on shield tunnel segments according to claim 4, characterized in that, The limiting wheel (2032) is located at the end of the deflection rod (2031) away from the hinge axis, and the limiting wheel (2032) is rotatably connected to one end of the deflection rod (2031).

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