Shield tunnel segment assembly slab staggering detection device

Abstract

The utility model relates to the technical field of segment staggering detection, in particular to a shield tunnel segment splicing staggering detection device which comprises a supporting frame, pulleys are fixedly installed at the bottom of the supporting frame, a positioning plate is fixedly connected to the bottom of the supporting frame, a guide cylinder is fixedly connected to the surface of the supporting frame, and the guide cylinder is fixedly connected to the bottom of the supporting frame. The surface of the guide cylinder is slidably connected with a detection rod, and the top of the detection rod is fixedly connected with a connecting plate. When the height difference of the duct pieces becomes large, the detection plate of the detection device drives the connecting plate to descend, the connecting plate drives the adjusting bolt and the trigger disc to descend, the trigger disc descends to make contact with the trigger button, and the trigger button triggers the alarm to give an alarm to remind detection personnel that the duct pieces at the position exceed the dislocation numerical value. Detection personnel do not need to read the detection value while detecting, and the efficiency of segment dislocation detection is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of segment misalignment detection technology, specifically a shield tunnel segment assembly misalignment detection device. Background Technology

[0002] In shield tunnel construction, misalignment of lining segments not only affects the tunnel's appearance but also leads to serious quality problems such as water leakage, segment damage, and shield tail brush damage. It is a key factor affecting tunnel quality. The allowable range for segment misalignment is typically: circumferential misalignment: ≤5mm (within the effective compression range of the waterproof sealing strip); longitudinal misalignment: ≤3mm (ensuring bolt hole alignment accuracy). However, existing shield tunnel segment misalignment detection devices cannot provide real-time feedback on whether the misalignment value exceeds the allowable limit when measuring the misalignment between segments. Furthermore, when measuring assembled segments, multiple locations at the segment connections need to be measured simultaneously. Segment misalignment detection requires reading the measurement values ​​while performing the measurement, which significantly reduces the efficiency of segment misalignment detection. Utility Model Content

[0003] The purpose of this invention is to provide a shield tunnel segment misalignment detection device to solve the problem mentioned in the background art that the existing shield tunnel segment misalignment detection device cannot provide real-time feedback on whether the misalignment value of the segment exceeds the misalignment amount when measuring the misalignment value between segments. The segment misalignment detection requires simultaneous detection and reading of the detection value, which greatly reduces the efficiency of segment misalignment detection.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a shield tunnel segment assembly misalignment detection device, comprising a support frame, a pulley fixedly installed at the bottom of the support frame, a positioning plate fixedly connected to the bottom of the support frame, a guide cylinder fixedly connected to the surface of the support frame, a detection rod slidably connected to the surface of the guide cylinder, a connecting plate fixedly connected to the top of the detection rod, an adjusting bolt threadedly connected to the surface of the connecting plate, a trigger disc fixedly connected to the bottom of the adjusting bolt, a spacing ruler fixedly connected to one side of the connecting plate, an alarm fixedly connected to the side of the support frame, and a trigger button provided on the surface of the support frame, the trigger button being connected to the alarm's input circuit via a connecting line. At the inlet, a fixed rod is fixedly connected to the surface of the support frame, a first slider is slidably connected to the surface of the fixed rod, a movable rod is rotatably connected to the surface of the first slider, the end of the movable rod away from the first slider is rotatably connected to the bottom of the connecting plate, a first spring is fixedly connected to the surface of the first slider, a second slider is fixedly connected to the end of the first spring away from the first slider, the second slider is slidably connected to the surface of the fixed rod, a limit bolt is threaded on the surface of the second slider, a guide block is fixedly connected to the surface of the support frame, a second spring is fixedly connected to the surface of the guide block, a limit rod is fixedly connected to the surface of the second spring, and the limit rod is slidably connected to the surface of the guide block.

[0005] Preferably, the pulleys are provided in two sets, the support frame slides on the tube segment via the pulleys, and the positioning plate limits the sliding position of the support frame on the tube segment.

[0006] Preferably, the bottom horizontal height of the guide cylinder is the same as the bottom horizontal height of the pulley, the bottom of the detection rod is provided with anti-friction microbeads, and the connecting plate slides and rises and falls on the surface of the support frame through the guide cylinder.

[0007] Preferably, the support frame has multiple sets of limiting grooves on its surface, and the multiple sets of limiting grooves are arranged linearly and evenly. The limiting bolt is inserted into the limiting groove of the support frame by rotating on the second slider.

[0008] Preferably, the first spring applies elastic force to the first slider on the second slider, and during the sliding process, the movable rod rotates to drive the connecting plate and the detection rod to slide and rise on the support frame.

[0009] Preferably, a limiting groove is formed on one side of the first slider, and the elastic force of the second spring acts on the limiting rod, which slides on the guide block until it is inserted into the limiting groove of the first slider.

[0010] Preferably, the connecting plate has a threaded hole on its surface. The adjusting bolt rotates on the threaded hole of the connecting plate to drive the trigger disc to rise and fall. The connecting plate drives the adjusting bolt and the trigger disc to rise and fall synchronously. The trigger disc is located directly above the trigger button.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This detection device uses a sliding support frame supported by pulleys on two sets of assembled pipe segments, with the positioning plate positioned on one side between the two sets of pipe segments. A first spring pushes a first slider to move through its elastic force. The first slider drives a connecting plate and a detection rod to slide downwards on a guide cylinder via a movable rod, ensuring that the detection rod is always in contact with the pipe segment. When the height difference between the pipe segments increases, the detection rod causes the connecting plate to descend, which in turn causes the adjusting bolt and trigger disc to descend. This causes the trigger disc to descend until it contacts the trigger button, which then triggers the alarm to sound an alarm, alerting the inspector that the pipe segment at that location exceeds the misalignment value. This eliminates the need for inspectors to read the detection values ​​while performing the inspection, greatly improving the efficiency of pipe segment misalignment detection.

[0013] 2. This detection device uses a rotating adjusting bolt to move the trigger disc up and down on the connecting plate. By observing the spacing gauge, the distance between the trigger disc and the connecting plate can be determined, and thus the distance between the trigger disc and the trigger button can be determined. By adjusting the height of the trigger disc, the amount of misalignment during the detection process can be set, thus improving the flexibility of the detection device.

[0014] 3. Slide the second slider on the surface of the fixed rod, and align the threaded hole on one side of the second slider with the limiting groove of the support frame. Rotate the limiting bolt on the second slider so that the limiting bolt is inserted into a set of limiting grooves of the support frame, thereby changing the position of the second slider. By changing the position of the second slider, the preload of the first spring can be adjusted, thereby extending the service life of the detection device. Attached Figure Description

[0015] Figure 1 This is a front view of the overall structure of this utility model;

[0016] Figure 2 This is a three-dimensional front view of the structure of this utility model;

[0017] Figure 3 This is a partial top view of the structure of this utility model;

[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A;

[0019] Figure 5 This utility model Figure 3 Enlarged structural diagram at point B;

[0020] Figure 6 This is a frontal sectional exploded view of the structure of the first spring connection of this utility model.

[0021] In the diagram: 1. Support frame; 11. Pulley; 12. Positioning plate; 2. Guide cylinder; 21. Detection rod; 22. Connecting plate; 23. Adjusting bolt; 24. Trigger disc; 25. Spacing ruler; 26. Alarm; 27. Trigger button; 3. Fixed rod; 31. First slider; 32. Movable rod; 33. First spring; 34. Second slider; 35. Limit bolt; 36. Guide block; 37. Second spring; 38. Limit rod. Detailed Implementation

[0022] Please see Figure 1-6 One embodiment provided by this utility model:

[0023] A shield tunnel segment misalignment detection device includes a support frame 1, with pulleys 11 fixedly installed at the bottom of the support frame 1 and a positioning plate 12 fixedly connected to the bottom of the support frame 1. The pulleys 11 and the positioning plate 12 are used to slide on the higher segment, while the bottom of the positioning plate 12 slides on the side wall of the segment. A guide cylinder 2 is fixedly connected to the surface of the support frame 1, and a detection rod 21 is slidably connected to the surface of the guide cylinder 2. A connecting plate 22 is fixedly connected to the top of the detection rod 21, and an adjusting bolt 23 is threadedly connected to the surface of the connecting plate 22. A trigger disc 24 is fixedly connected to the bottom of the adjusting bolt 23, and a spacing ruler 25 is fixedly connected to one side of the connecting plate 22. An alarm 26 is fixedly connected to the side of the support frame 1, and a trigger button 27 is provided on the surface of the support frame 1. The trigger button 27 is connected to the input end of the alarm 26 via a connecting line. A fixing rod 3 is fixedly connected to the surface of the support frame 1, and a first slider 31 is slidably connected to the surface of the fixing rod 3. A movable rod 32 is rotatably connected to the surface of the first slider 31. The end of the moving rod 32 away from the first slider 31 is rotatably connected to the bottom of the connecting plate 22. A first spring 33 is fixedly connected to the surface of the first slider 31. A second slider 34 is fixedly connected to the end of the first spring 33 away from the first slider 31. The second slider 34 is slidably connected to the surface of the fixed rod 3. A limit bolt 35 is threaded on the surface of the second slider 34. A guide block 36 is fixedly connected to the surface of the support frame 1. A second spring 37 is fixedly connected to the surface of the guide block 36. A limit rod 38 is fixedly connected to the surface of the second spring 37. The limit rod 38 is slidably connected to the surface of the guide block 36. This detection device can provide real-time feedback to the inspector when the misalignment value exceeds the misalignment amount, so that the inspector knows that the misalignment amount of the segment is out of range and that the segment needs to be properly corrected. Furthermore, the detection device can make appropriate adjustments to the misalignment amount to adapt to different segment misalignment detection. At the same time, when the spring force of the first spring 33 is insufficient, the preload of the first spring 33 can be adjusted to extend the service life of the detection device.

[0024] Furthermore, two sets of pulleys 11 are provided. The support frame 1 slides on the tube segment via the pulleys 11. The positioning plate 12 limits the sliding position of the support frame 1 on the tube segment. The positioning plate 12 is located at the connection of the two sets of tube segments and contacts one side of the tube segment. The positioning plate 12 ensures that the support frame 1 can move linearly and stably on the tube segment, thereby ensuring the stability during the testing process.

[0025] Furthermore, the bottom horizontal height of the guide cylinder 2 is the same as the bottom horizontal height of the pulley 11. The bottom of the detection rod 21 is provided with anti-friction microbeads, thereby reducing the friction between the detection rod 21 and the tube segment. The connecting plate 22 slides and rises and falls on the surface of the support frame 1 through the guide cylinder 2. The detection rod 21 will slide down until the bottom of the detection rod 21 contacts and connects to the surface of the tube segment, and the detection rod 21 moves on the surface of the tube segment through the guide cylinder 2.

[0026] Furthermore, multiple sets of limiting grooves are formed on the surface of the support frame 1, and the multiple sets of limiting grooves are arranged linearly and evenly. The limiting bolt 35 is inserted into the limiting groove of the support frame 1 by rotating on the second slider 34. The surface of the second slider 34 is provided with a threaded hole, and the limiting bolt 35 is threadedly connected to the threaded hole of the second slider 34. The multiple sets of limiting grooves cooperate with the limiting bolt 35 to change the position of the second slider 34 on the fixed rod 3, thereby changing the distance between it and the first slider 31.

[0027] Furthermore, the first spring 33 applies elastic force to the first slider 31 on the second slider 34. During the sliding process, the movable rod 32 rotates and drives the connecting plate 22 and the detection rod 21 to slide and rise on the support frame 1, thereby causing the detection rod 21 to descend to contact the connecting tube segment. Under the elastic force of the first spring 33, the detection rod 21 is always in contact with the tube segment.

[0028] Furthermore, a limiting groove is provided on one side of the first slider 31, and the elastic force of the second spring 37 acts on the limiting rod 38. The limiting rod 38 slides on the guide block 36 to be inserted into the limiting groove of the first slider 31. The limiting rod 38 restricts the position of the first slider 31 on the fixed rod 3. When the detection device is not in use, the position of the first slider 31 can be restricted, thereby restricting the position of the movable rod 32, the detection rod 21 and the connecting plate 22 through the first slider 31.

[0029] Furthermore, the surface of the connecting plate 22 is provided with threaded holes. The adjusting bolt 23 rotates on the threaded holes of the connecting plate 22 to drive the trigger disc 24 to rise and fall. The connecting plate 22 drives the adjusting bolt 23 and the trigger disc 24 to rise and fall synchronously. The trigger disc 24 is located directly above the trigger button 27. During the descent of the trigger disc 24, the trigger button 27 is released. The trigger button 27 causes the alarm 26 to sound an alarm, reminding the inspection personnel that the misalignment exceeds the limit and the segment needs to be adjusted. The alarm 26 and the trigger button 27 are existing technologies, and the alarm 26 can be triggered when the trigger button 27 is touched.

[0030] Working principle: The support frame 1 slides on the two sets of assembled pipe segments via pulleys 11, and the positioning plate 12 is located on one side between the two sets of pipe segments. The first spring 33 pushes the first slider 31 to move through its elastic force. The first slider 31 drives the connecting plate 22 and the detection rod 21 to slide downward on the guide cylinder 2 through the movable rod 32, so that the detection rod 21 is always in contact with the pipe segment. When the height difference of the pipe segments increases, the detection rod 21 drives the connecting plate 22 to descend. The connecting plate 22 drives the adjusting bolt 23 and the trigger disc 24 to descend, so that the trigger disc 24 descends to contact the trigger button 27. The trigger button 27 triggers the alarm 26 to sound an alarm, reminding the inspector that the pipe segment at this point exceeds the misalignment value. The inspector does not need to read the detection value while inspecting, which greatly improves the efficiency of pipe segment misalignment detection.

[0031] By rotating the adjusting bolt 23, the trigger disc 24 is driven to rise and fall on the connecting plate 22. By observing the spacing ruler 25, the distance between the trigger disc 24 and the connecting plate 22 can be known, and thus the distance between the trigger disc 24 and the trigger button 27 can be known. By adjusting the height of the trigger disc 24, the amount of misalignment during the detection process can be set, thereby improving the flexibility of the detection device.

[0032] The second slider 34 is slid on the surface of the fixed rod 3, and the threaded hole on one side of the second slider 34 is aligned with the limiting groove of the support frame 1. The limiting bolt 35 is rotated on the second slider 34, so that the limiting bolt 35 is inserted into a set of limiting grooves of the support frame 1, thereby changing the position of the second slider 34. By changing the position of the second slider 34, the preload of the first spring 33 can be adjusted, thereby extending the service life of the detection device.

Claims

1. A device for detecting misalignment of segments of a shield tunnel, characterized in that: The utility model provides a support frame, the bottom fixed mounting of support frame has a pulley, the bottom fixed connection of support frame has a positioning plate, the surface fixed connection of support frame has a guide cylinder, the surface sliding connection of guide cylinder has a detection rod, the top fixed connection of detection rod has a connecting plate, the surface screw thread connection of connecting plate has an adjusting bolt, the bottom fixed connection of adjusting bolt has a trigger disc, the side fixed connection of connecting plate has a spacing ruler, the side fixed connection of support frame has a siren, the surface fixed connection of support frame has a fixed link, the surface sliding connection of fixed link has a first sliding block, the surface rotating connection of first sliding block has a movable rod, the bottom rotating connection of movable rod away from first sliding block is in connecting plate, the surface fixed connection of first sliding block has a first spring, the fixed connection of first spring away from first sliding block has a second sliding block, the surface sliding connection of second sliding block is in fixed link, the surface screw thread limit bolt of second sliding block, the surface fixed connection of support frame has a guide block, the surface fixed connection of guide block has a second spring, the surface fixed connection of second spring has a limit rod, the surface sliding connection of limit rod is in guide block.

2. The device for detecting misalignment of shield tunnel segment assembly according to claim 1, characterized in that: The pulley is provided with two groups, the support frame is slid on the pipe piece through the pulley, and the positioning plate limits the sliding position of the support frame on the pipe piece.

3. The device for detecting misalignment of shield tunnel segment assembly according to claim 1, characterized in that: The bottom level of the guide cylinder is same with the bottom level of the pulley, the bottom of the detection rod is provided with the antifriction microbead, the connecting plate is slid and lifted on the surface of the support frame through the guide cylinder.

4. The device for detecting misalignment of shield tunnel segment assembly according to claim 3, characterized in that: A plurality of limiting grooves are arranged on the surface of the support frame in a linear and uniform manner, and the limiting bolt is inserted into the limiting groove of the support frame by rotating on the second sliding block.

5. The device for detecting misalignment of shield tunnel segment assembly according to claim 1, characterized in that: The first spring applies elastic force to the first sliding block on the second sliding block, and the first sliding block drives the connecting plate and the detection rod to slide and lift on the support frame in the process of sliding.

6. The device for detecting misalignment of shield tunnel segment assembly according to claim 1, characterized in that: A limiting groove is arranged on one side of the first sliding block, the elastic force of the second spring acts on the limiting rod, and the limiting rod is inserted into the limiting groove of the first sliding block by sliding on the guide block.

7. The device for detecting misalignment of shield tunnel segment assembly according to claim 1, characterized in that: The surface of the connecting plate is provided with a threaded hole, the adjusting bolt is rotated on the threaded hole of the connecting plate to drive the trigger disc to lift, the connecting plate drives the adjusting bolt and the trigger disc to lift synchronously, and the trigger disc is directly above the trigger button.

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