Fixing device for shield tunneling machine duct piece

Abstract

The utility model provides a fixing device for a shield tunneling machine duct piece, and relates to the field of shield tunneling machines. The fixing device for the shield tunneling machine duct piece comprises the duct piece and a reinforcing plate, a connecting groove, a limiting groove and a fixing groove are formed in the surface of the duct piece, the reinforcing plate abuts against the fixing groove, a fixing ring is fixedly connected to the surface of the reinforcing plate, a connecting mechanism is arranged above the reinforcing plate, the connecting mechanism comprises a connecting box and a fixing buckle, and the connecting box is fixedly connected with the fixing buckle. The middle of the connecting box is slidably connected with a connecting inserting rod, and one end of the connecting inserting rod is clamped with the limiting groove. According to the fixing device for the shield tunneling machine duct pieces, reinforcing plates and fixing grooves are arranged in a staggered mode, the four duct pieces are fixed, fixing buckles are fixed through connecting boxes, fixing rings are fixed through the fixing buckles, the reinforcing plates are fixed to the surfaces of the duct pieces, and the stability of mounting of the reinforcing plates is improved; and the connecting box is used for fixing the two groups of pipe pieces, so that the pipe piece mounting and fixing stability is improved.

Description

Technical Field

[0001] This utility model relates to a tunnel boring machine segment fixing device, specifically a fixing device for tunnel boring machine segments, belonging to the field of tunnel boring machine technology. Background Technology

[0002] A tunnel boring machine (TBM) is a type of tunnel boring machine that uses the shield tunneling method. The shield tunneling construction method involves the TBM constructing (laying) the "shield" (referring to supporting segments) of the tunnel while excavating. TBMs are generally classified into manual TBMs, extrusion TBMs, semi-mechanical TBMs, and mechanical TBMs based on their working principle.

[0003] Utility model patent CN213144479U discloses a tunnel boring machine (TBM) segment connection device, including segment A and segment B. Segment A comprises a first segment and a second segment. A fixing block A is fixedly connected to the middle of the right side of both the first and second segments. A fixing plate is fixedly connected to the bottom of the left side of the first segment, and an insertion plate is fixedly connected to the top of the left side of the second segment. This TBM segment connection device fixes segment B by fixing a third and fourth segment, and then interlocks segments A and B to form a segment connection. This facilitates installation and improves construction speed.

[0004] During tunnel boring machine (TBM) excavation, tunnel segments are used to support and protect the tunnel. Although the tunnel segment connection device in the aforementioned patent is relatively convenient for interlocking the segments, the local stress concentration can easily cause the segments to break. When the segments are damaged, the replacement is quite cumbersome. Therefore, we provide a fixing device for TBM tunnel segments to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a fixing device for tunnel boring machine segments in order to solve the above-mentioned problems, thereby addressing the cumbersome replacement of damaged segments in the prior art.

[0006] This utility model is achieved through the following technical solution: a fixing device for tunnel lining segments of a tunnel boring machine.

[0007] The device includes a pipe segment and a reinforcing plate. The surface of the pipe segment has a connecting groove, a limiting groove, and a fixing groove. The reinforcing plate abuts against the fixing groove. A fixing ring is fixedly connected to the surface of the reinforcing plate. A connecting mechanism is provided above the reinforcing plate. The connecting mechanism includes a connecting box and a fixing buckle. The fixing buckle is slidably connected to the fixing ring. A connecting rod is slidably connected to the middle of the connecting box. One end of the connecting rod is engaged with the limiting groove.

[0008] Preferably, a buffer pad is fixedly connected to the surface of the connecting box, and the two sides of the buffer pad abut against the two sets of connecting grooves. The buffer pad buffers and disperses the stress generated by the tube segment, avoiding damage to the tube segment caused by the accumulated stress.

[0009] Preferably, a sealing strip is provided on the outside of the connecting box, the fixing ring is slidably connected to the sealing strip, and both sides of the sealing strip abut against each other with the pipe segments. The sealing strip fills the gap between the two sets of pipe segments, so that the two sets of pipe segments are elastically connected together.

[0010] Preferably, the connecting box has a threaded rod rotatably connected inside, and an adjusting screw block is threadedly connected to the surface of the threaded rod. A connecting frame is fixedly connected to the surface of the adjusting screw block, and a fixing buckle is fixedly connected to the connecting frame. By rotating the threaded rod, the adjusting screw block drives the connecting frame to move, controlling the fixing buckle to be inserted with the fixing ring, thereby fixing the position of the fixing ring.

[0011] Preferably, the connecting box has a sliding groove inside, and a sliding block is slidably connected inside the sliding groove. The sliding block is fixedly connected to the connecting frame. The connecting frame is fixed by the sliding groove and the sliding block, thereby improving the stability of the sliding of the connecting frame.

[0012] Preferably, a power box is fixedly connected to the surface of the connecting box, and the output end of the power box is fixedly connected to the threaded rod. The power box is operated by the operator using a power tool, thereby controlling the rotation of the threaded rod.

[0013] Preferably, a connecting rod is rotatably connected to the surface of the connecting frame, and a connecting plate is fixedly connected to the other end of the connecting rod. The connecting rod and the connecting plate are rotatably connected. Through the connecting rod, when the connecting frame moves, the connecting plate drives the connecting rod to move, thereby controlling the connecting rod to insert into the limiting groove.

[0014] This utility model provides a fixing device for tunnel lining segments of a tunnel boring machine, which has the following advantages:

[0015] 1. This fixing device for tunnel boring machine segments features a staggered arrangement of reinforcing plates and fixing grooves. The staggered arrangement ensures that the four corners of the reinforcing plates abut against the four fixing grooves, fixing the four segments and improving the stability of the segment connection. The fixing buckle is secured by the connecting box, and the fixing ring is secured by the fixing buckle, thereby fixing the reinforcing plate to the surface of the segment and improving the stability of the reinforcing plate positioning and installation. The connecting rod is inserted into the limiting groove, allowing the connecting box to fix two sets of segments, improving the stability of the segment installation and fixing.

[0016] 2. This fixing device for tunnel boring machine segments uses a buffer pad to buffer and disperse the stress generated by the segments, avoiding stress accumulation that could damage the segments and improving their stability. A sealing strip fills the gap between two sets of segments, allowing them to be elastically connected, thus improving the stability and safety of the connection. Rotation of the threaded rod causes the adjusting screw to move the connecting frame, controlling the engagement of the fixing buckle and the fixing ring, thereby fixing the position of the fixing ring and improving the stability of the reinforcement plate installation.

[0017] 3. This fixing device for tunnel boring machine segments uses sliding grooves and sliding blocks to fix the connecting frame, improving the stability of the connecting frame's sliding. The operator controls the power box to operate using power tools, thereby controlling the rotation of the threaded rod. The worm gear has a self-locking function, which can prevent the threaded rod from rotating arbitrarily, improving the stability of the device's operation. Through the connecting rod, when the connecting frame moves, the connecting plate drives the connecting rod to move, controlling the connecting rod to insert into the limiting groove. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model;

[0020] Figure 3 This is a cross-sectional view of the connecting box structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure of the connecting frame of this utility model.

[0022] [Explanation of Key Component Symbols]

[0023] 1. Segment; 2. Connecting groove; 3. Limiting groove; 4. Fixing groove; 5. Reinforcing plate; 6. Fixing ring; 7. Sealing strip;

[0024] 8. Connecting mechanism; 801. Connecting box; 802. Buffer pad; 803. Power box; 804. Threaded rod; 805. Adjusting screw block; 806. Connecting frame; 807. Fixing buckle; 808. Sliding groove; 809. Sliding block; 810. Connecting rod; 811. Connecting plate; 812. Connecting insert rod. Detailed Implementation

[0025] This utility model provides a fixing device for tunnel segment of a tunnel boring machine.

[0026] Please see Figure 1 and Figure 2The system includes a pipe segment 1 and a reinforcing plate 5. The surface of the pipe segment 1 is provided with a connecting groove 2, a limiting groove 3 and a fixing groove 4, and the reinforcing plate 5 abuts against the fixing groove 4. A fixing ring 6 is fixedly connected to the surface of the reinforcing plate 5. The reinforcing plate 5 and the fixing groove 4 are arranged alternately, and the alternate arrangement makes the four corners of the reinforcing plate 5 abut against the four fixing grooves 4, thereby fixing the four pipe segments 1 and improving the stability of the pipe segment connection.

[0027] Please see Figure 3 and Figure 4 A connecting mechanism 8 is provided above the reinforcing plate 5. The connecting mechanism 8 includes a connecting box 801 and a fixing buckle 807. The fixing buckle 807 is slidably connected to the fixing ring 6. A connecting rod 812 is slidably connected to the middle of the connecting box 801. One end of the connecting rod 812 is engaged with the limiting groove 3. The fixing buckle 807 is fixed by the connecting box 801, and the fixing ring 6 is fixed by the fixing buckle 807, thereby fixing the reinforcing plate 5 to the surface of the pipe segment 1 and improving the stability of the positioning and installation of the reinforcing plate 5. The connecting rod 812 is inserted into the limiting groove 3, so that the connecting box 801 fixes the two sets of pipe segments 1, improving the stability of the installation and fixing of the pipe segments 1.

[0028] The connecting box 801 is internally connected to a threaded rod 804, and the surface of the threaded rod 804 is threadedly connected to an adjusting screw block 805. The surface of the adjusting screw block 805 is fixedly connected to a connecting frame 806, and a fixing buckle 807 is fixedly connected to the connecting frame 806. By rotating the threaded rod 804, the adjusting screw block 805 drives the connecting frame 806 to move, controlling the fixing buckle 807 to be inserted into the fixing ring 6, thereby fixing the position of the fixing ring 6 and improving the stability of the fixed installation of the reinforcing plate 5.

[0029] The connecting box 801 has a sliding groove 808 inside, and a sliding block 809 is slidably connected inside the sliding groove 808. The sliding block 809 is fixedly connected to the connecting frame 806. The connecting frame 806 is fixed by the sliding groove 808 and the sliding block 809, thereby improving the stability of the sliding of the connecting frame 806.

[0030] A power box 803 is fixedly connected to the surface of the connecting box 801, and the output end of the power box 803 is fixedly connected to the threaded rod 804. The power box 803 has a worm gear structure inside. The operator controls the operation of the power box 803 by using a power tool, thereby controlling the rotation of the threaded rod 804. The worm gear has a self-locking function, which can prevent the threaded rod 804 from rotating randomly and improve the stability of the device operation.

[0031] A connecting rod 810 is rotatably connected to the surface of the connecting frame 806. The other end of the connecting rod 812 is fixedly connected to the connecting plate 811, and the connecting rod 810 is rotatably connected to the connecting plate 811. Through the connecting rod 810, when the connecting frame 806 moves, the connecting plate 811 drives the connecting rod 812 to move, controlling the connecting rod 812 to insert into the limiting groove 3.

[0032] A buffer pad 802 is fixedly connected to the surface of the connecting box 801, and the two sides of the buffer pad 802 abut against the two sets of connecting grooves 2. The buffer pad 802 buffers and disperses the stress generated by the tube segment 1, avoids the accumulation of stress, and prevents damage to the tube segment, thereby improving the stability of the tube segment in use.

[0033] Please refer to it again. Figure 1 and Figure 2 The outer side of the connecting box 801 is provided with a sealing strip 7. The fixing ring 6 is slidably connected to the sealing strip 7, and both sides of the sealing strip 7 abut against the tube segment 1. The sealing strip 7 fills the gap between the two sets of tube segments, so that the two sets of tube segments are elastically connected together, improving the stability and safety of the tube segment connection.

[0034] In use, this utility model involves: first, arranging the tunnel segments 1 and reinforcing plates 5 alternately inside the tunnel, ensuring that the four corners of the reinforcing plate 5 abut against each other in the four fixing grooves 4; then pressing the sealing strip 7 into the gap between two tunnel segments 1; and finally, placing the connecting box 801 into the connecting groove 2. The operator uses a power tool to control the operation of the power box 803, which in turn controls the rotation of the threaded rod 804. Adjusting the screw block 805 moves the connecting frame 806, controlling the fixing buckle 807 to engage with the fixing ring 6, thereby fixing the position of the reinforcing plate 5 and securing it to the four nearby tunnel segments 1. The connecting rod 810 causes the connecting plate 811 to move the connecting rod 812, controlling the connecting rod 812 to insert into the limiting groove 3, so that the connecting box 801 fixes the two adjacent segments 1. Through multiple fixings, the segments 1 can be fixedly connected. When a segment 1 is damaged, the connecting boxes 801 on both sides can be loosened to replace the segment 1, reducing the maintenance difficulty of the segment 1 and improving the maintenance efficiency of the segment 1. In addition, the sealing strip 7 and the buffer pad 802 buffer and disperse the stress generated by the segment 1, improving the stability and safety of the segment connection.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fixing device for segments of a tunnel boring machine, comprising a segment (1) and a reinforcing plate (5), characterized in that: The surface of the pipe piece (1) is provided with connecting grooves (2), limiting grooves (3) and fixing grooves (4), the reinforcing plate (5) is in abutment with the fixing grooves (4), the surface of the reinforcing plate (5) is fixedly connected with a fixing ring (6), a connecting mechanism (8) is arranged above the reinforcing plate (5), the connecting mechanism (8) comprises a connecting box (801) and a fixing buckle (807), the fixing buckle (807) is in sliding connection with the fixing ring (6), a connecting plug rod (812) is in sliding connection with the middle portion of the connecting box (801), and one end of the connecting plug rod (812) is clamped with the limiting groove (3).

2. The fixing device for segments of a tunneling machine according to claim 1, characterized in that: The surface of the connecting box (801) is fixedly connected with a buffer pad (802), and the buffer pad (802) is in abutment with the two groups of connecting grooves (2) on the two sides.

3. The fixing device for segments of a tunneling machine according to claim 1, characterized in that: The outer portion of the connecting box (801) is provided with a sealing strip (7), the fixing ring (6) is in sliding connection with the sealing strip (7), and the two sides of the sealing strip (7) are in abutment with the pipe piece (1).

4. The fixing device for segments of a tunneling machine according to claim 1, characterized in that: The inner portion of the connecting box (801) is rotatably connected with a threaded rod (804), the surface of the threaded rod (804) is screw-connected with an adjusting screw block (805), the surface of the adjusting screw block (805) is fixedly connected with a connecting frame (806), and the fixing buckle (807) is fixedly connected with the connecting frame (806).

5. The segment fixing device for a shield tunneling machine according to claim 4, wherein: The inner portion of the connecting box (801) is provided with a sliding groove (808), the inner portion of the sliding groove (808) is slidably connected with a sliding block (809), and the sliding block (809) is fixedly connected with the connecting frame (806).

6. The segment fixing device for a shield tunneling machine according to claim 4, wherein: The surface of the connecting box (801) is fixedly connected with a power box (803), and the output end of the power box (803) is fixedly connected with the threaded rod (804).

7. The segment fixing device for a shield tunneling machine according to claim 4, wherein: The surface of the connecting frame (806) is rotatably connected with a connecting rod (810), the other end of the connecting plug rod (812) is fixedly connected with a connecting plate (811), and the connecting rod (810) is rotatably connected with the connecting plate (811).

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