Lining cracking detection equipment

Abstract

The utility model discloses lining cracking detection equipment, and relates to the technical field of tunnel lining detection. The device comprises a fixed plate, a fan-shaped block is arranged on the fixed plate, an adjusting block is rotatably matched with the fan-shaped block, a three-dimensional laser ultrasonic scanner is arranged on the adjusting block, a moving block is slidably matched with the bottom of the fixed plate, and a positioning assembly is arranged in the fixed plate. The adjusting rod is rotated to drive the bidirectional threaded rod to rotate, so that the rollers of the positioning rods on the two sides are located on the walls on the two sides of the tunnel, it can be guaranteed that the three-dimensional laser ultrasonic scanner on the fixing plate is located in the middle of the tunnel, and certain stability is achieved; the three-dimensional laser ultrasonic scanner is driven by the adjusting block to rotate to scan and detect the tunnel top lining cracking position, when the bottom of the fixed plate meets an obstacle, the movable block can be adjusted to move to avoid the obstacle and continue to move forwards for detection, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of tunnel lining detection, and specifically relates to a lining crack detection device. Background Art

[0002] Tunnel lining in existing technology is a permanent support structure built with reinforced concrete and other materials along the perimeter of the tunnel body to prevent deformation or collapse of the surrounding rock. Currently, the most commonly used tunnel lining inspection method in China still relies on traditional inspection methods. Its main lifting platform sends people to the designated location and conducts inspections through the naked eye and operating instruments. This method is inefficient and has poor accuracy in recording cracks.

[0003] A Chinese patent with publication number CN116046886A discloses a tunnel top crack safety detection device, including an engineering vehicle for supporting crack detection, a lifting mechanism arranged on the engineering vehicle and a support platform installed on the top of the lifting mechanism, and also includes: a detection platform, the support platform supports the detection platform through an angle adjustment mechanism arranged on the top; an ultrasonic detector and a geological radar, the ultrasonic detector and the geological radar are arranged above the detection platform, and the knocking mechanism is installed on the detection platform. This tunnel top crack safety detection device performs comprehensive detection of tunnel top cracks through the ultrasonic detector and the geological radar respectively arranged on the detection platform on the top of the engineering vehicle, so as to better analyze the depth of the tunnel top cracks and the defects behind them.

[0004] When the above equipment is used to detect cracks on the top of the tunnel, the engineering vehicle needs to remain in the middle and move forward for detection. If it encounters an obstacle in front, it is inconvenient to move it left or right, which will result in incomplete detection by the detection equipment on the top.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a lining crack detection device.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0008] A lining crack detection device comprises a fixed plate, a fan-shaped block is mounted on the fixed plate, an adjustment block is rotatably matched with the fan-shaped block, a three-dimensional laser ultrasonic scanner is arranged on the adjustment block, a moving block is slidably matched with the bottom of the fixed plate, and a positioning component is arranged inside the fixed plate;

[0009] A cavity, a first through slot and a second through slot are provided in the fixing plate, and the first through slot passes through the fixing plate transversely. The positioning assembly includes a positioning rod that is slidably engaged on both sides of the first through slot, an adjusting rod that is rotatably engaged in the second through slot, and a bidirectional threaded rod that is threadedly engaged in the positioning rod. A roller is installed at one end of the positioning rod, and the adjusting rod cooperates with the bidirectional threaded rod.

[0010] Optionally, a first electric push rod is installed on the adjusting block, a placement plate is installed at the telescopic end of the first electric push rod, the three-dimensional laser ultrasonic scanner is installed on the placement plate, a driving member is installed on one side of the fan-shaped block, and the output shaft of the driving member is installed on one side of the adjusting block. When detecting cracks in the lining at the top of the tunnel, the adjusting block is driven by the driving member to swing left and right on the fan-shaped block, and the first electric push rod can adjust the position height of the three-dimensional laser ultrasonic scanner on the placement plate to facilitate all-round detection of the lining cracks.

[0011] Optionally, sliding grooves are provided on opposite sides of the first through groove, sliding blocks are installed on opposite sides of the positioning rod, the sliding blocks are slidably fitted in the sliding grooves, a first bevel gear is installed on the bidirectional threaded rod, a second bevel gear is installed at one end of the adjusting rod, the first bevel gear is meshed with the second bevel gear, and the first bevel gear and the second bevel gear are located in the cavity, a T-shaped block is installed at the bottom of the fixed plate, baffles are installed on opposite sides of the T-shaped block, a T-shaped slot is provided on one side of the moving block, and the T-shaped block is slidably fitted in the T-shaped slot.

[0012] Optionally, a second electric push rod is installed at the bottom of the moving block, the telescopic end of the second electric push rod is connected to the bottom of the moving block, a moving plate is installed at the bottom of the second electric push rod, a plurality of universal wheels are installed at the bottom of the moving plate, a plurality of slots are opened at the bottom of the fixed plate, a fixed frame is installed on one side of the moving block, a latch is arranged in the fixed frame, the latch is plugged into the slot, a limit plate is installed on the latch, a spring is installed on the limit plate, and the spring is sleeved on the latch. The moving block, the second electric push rod and the moving plate are slid at the bottom of the fixed plate, and the overall height of the fixed plate can be adjusted by the second electric push rod.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0014] 1. The lining crack detection equipment drives the bidirectional threaded rod to rotate by rotating the adjusting rod, so that the rollers of the positioning rods on both sides are located on the walls on both sides of the tunnel, which can ensure that the three-dimensional laser ultrasonic scanner on the fixed plate is located in the middle of the tunnel and also plays a certain stability. The three-dimensional laser ultrasonic scanner is driven to rotate by the adjusting block to scan and detect the cracks in the lining on the top of the tunnel. When encountering an obstacle at the bottom of the fixed plate, the moving block can be adjusted to move to avoid the obstacle and continue to move forward for detection, thereby improving the detection efficiency.

[0015] 2. The lining crack detection equipment has a moving block, a second electric push rod and a moving plate sliding at the bottom of the fixed plate. The overall height of the fixed plate can be adjusted by the second electric push rod. The mobility of the moving block enables the fixed plate to be located in the middle of the tunnel and move forward. When encountering an obstacle, the moving block can be moved to avoid the obstacle and continue the detection, thereby improving the detection process.

[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

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

[0019] Figure 2 This is a schematic diagram of the structure of the mobile block connection of the embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the positioning assembly of an embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure inside the fixed frame of the embodiment of the utility model;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1-fixed plate, 2-sector block, 3-adjusting block, 4-driving member, 5-first electric push rod, 6-placing plate, 7-three-dimensional laser ultrasonic scanner, 8-positioning rod, 9-moving block, 10-second electric push rod, 11-moving plate, 12-universal wheel, 13-T-shaped block, 14-baffle, 15-T-shaped groove, 16-bidirectional threaded rod, 17-adjusting rod, 18-first bevel gear, 19-second bevel gear, 20-slider, 101-cavity, 102-first through groove, 103-slide groove, 104-second through groove, 105-slot, 22-roller, 23-fixed frame, 24-latch, 25-limiting plate, 26-spring.

[0024] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0025] The utility model will now be described in further detail with reference to the accompanying drawings.

[0026] See also Figure 1-4 As shown, in this embodiment, a lining crack detection device is provided, including a fixed plate 1, a fan-shaped block 2 is installed on the fixed plate 1, an adjustment block 3 is rotatably matched on the fan-shaped block 2, a three-dimensional laser ultrasonic scanner 7 is arranged on the adjustment block 3, a moving block 9 is slidably matched at the bottom of the fixed plate 1, and a positioning component is arranged inside the fixed plate 1;

[0027] A cavity 101, a first through slot 102 and a second through slot 104 are provided in the fixing plate 1, and the first through slot 102 passes through the fixing plate 1 transversely. The positioning assembly includes a positioning rod 8 that is slidably engaged on both sides of the first through slot 102, an adjusting rod 17 that is rotatably engaged in the second through slot 104, and a bidirectional threaded rod 16 that is threadedly engaged in the positioning rod 8. A roller 22 is installed at one end of the positioning rod 8, and the adjusting rod 17 cooperates with the bidirectional threaded rod 16.

[0028] One aspect of the application of this embodiment is: when using the lining crack detection device, the bidirectional threaded rod 16 is driven to rotate by rotating the adjusting rod 17, so that the rollers 22 of the positioning rods 8 on both sides are located on the walls on both sides of the tunnel, which can ensure that the three-dimensional laser ultrasonic scanner 7 on the fixed plate 1 is located in the middle of the tunnel and also plays a certain stability. The three-dimensional laser ultrasonic scanner 7 is driven to rotate by the adjusting block 3 to scan and detect the cracks in the lining on the top of the tunnel. When the bottom of the fixed plate 1 encounters an obstacle, the moving block 9 can be adjusted to move to avoid the obstacle and continue to move forward for detection, thereby improving the detection efficiency.

[0029] In this embodiment, a first electric push rod 5 is installed on the adjustment block 3, and a placement plate 6 is installed at the telescopic end of the first electric push rod 5. A three-dimensional laser ultrasonic scanner 7 is installed on the placement plate 6. A driving member 4 is installed on one side of the sector block 2, and the output shaft of the driving member 4 is installed on one side of the adjustment block 3. When detecting cracks in the lining at the top of the tunnel, the adjustment block 3 is driven by the driving member 4 to swing left and right on the sector block 2. The first electric push rod 5 can adjust the position height of the three-dimensional laser ultrasonic scanner 7 on the placement plate 6 to facilitate all-round detection of the lining cracks.

[0030] In this embodiment, the first through groove 102 is provided with a slide groove 103 on both sides thereof, and the positioning rod 8 is provided with a slide block 20 on both sides thereof, and the slide block 20 is slidably fitted in the slide groove 103. The bidirectional threaded rod 16 is provided with a first bevel gear 18, and one end of the adjusting rod 17 is provided with a second bevel gear 19, and the first bevel gear 18 is meshed with the second bevel gear 19, and the first bevel gear 18 and the second bevel gear 19 are located in the cavity 101. A T-shaped block 13 is provided at the bottom of the fixed plate 1, and baffles 14 are provided at both sides thereof. A T-shaped groove 15 is provided at one side of the moving block 9, and the T-shaped block 13 is slidably fitted in the T-shaped groove 15. A second electric push rod 10 is provided at the bottom of the moving block 9, and the telescopic end of the second electric push rod 10 is connected to the bottom of the moving block 9. A moving plate 11 is installed at the bottom of the second electric push rod 10, and a plurality of universal wheels 12 are installed at the bottom of the moving plate 11. A plurality of slots 105 are opened at the bottom of the fixed plate 1. A fixed frame 23 is installed on one side of the moving block 9. A latch 24 is arranged in the fixed frame 23. The latch 24 is plugged into the slot 105. A limit plate 25 is installed on the latch 24. A spring 26 is installed on the limit plate 25, and the spring 26 is sleeved on the latch 24. The moving block 9, the second electric push rod 10 and the moving plate 11 are slidably arranged at the bottom of the fixed plate 1. The overall height of the fixed plate 1 can be adjusted by the second electric push rod 10. The mobility of the moving block 9 enables the fixed plate 1 to move forward in the middle of the tunnel and encounter obstacles when it encounters obstacles. The moving block 9 can be moved to avoid the obstacles and continue the detection, thereby improving the detection process.

[0031] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A lining crack detection device, characterized in that: include: A fixed plate (1), the fixed plate (1) being provided with a sector block (2), the sector block (2) being rotatably engaged with an adjustment block (3), the adjustment block (3) being provided with a three-dimensional laser ultrasonic scanner (7), the bottom of the fixed plate (1) being slidably engaged with a moving block (9), and a positioning component being provided inside the fixed plate (1); A cavity (101), a first through slot (102) and a second through slot (104) are provided in the fixing plate (1), and the first through slot (102) passes through the fixing plate (1) transversely. The positioning assembly comprises a positioning rod (8) slidably engaged on both sides of the first through slot (102), an adjusting rod (17) rotatably engaged in the second through slot (104), and a bidirectional threaded rod (16) threadedly engaged in the positioning rod (8). A roller (22) is installed at one end of the positioning rod (8), and the adjusting rod (17) engages with the bidirectional threaded rod (16).

2. A lining crack detection device according to claim 1, characterized in that: A first electric push rod (5) is mounted on the adjustment block (3); a placement plate (6) is mounted on the telescopic end of the first electric push rod (5); a three-dimensional laser ultrasonic scanner (7) is mounted on the placement plate (6); a driving member (4) is mounted on one side of the sector block (2); and an output shaft of the driving member (4) is mounted on one side of the adjustment block (3).

3. The lining crack detection device according to claim 1 is characterized in that: Slide grooves (103) are provided on opposite sides of the first through groove (102), slide blocks (20) are provided on opposite sides of the positioning rod (8), the slide blocks (20) are slidably fitted in the slide grooves (103), a first bevel gear (18) is provided on the bidirectional threaded rod (16), a second bevel gear (19) is provided on one end of the adjusting rod (17), the first bevel gear (18) is meshed with the second bevel gear (19), and the first bevel gear (18) and the second bevel gear (19) are located in the cavity (101).

4. The lining crack detection device according to claim 1 is characterized in that: A T-shaped block (13) is installed at the bottom of the fixed plate (1), baffles (14) are installed on opposite sides of the T-shaped block (13), a T-shaped groove (15) is opened on one side of the movable block (9), and the T-shaped block (13) is slidably fitted in the T-shaped groove (15).

5. The lining crack detection device according to claim 4 is characterized in that: A second electric push rod (10) is installed at the bottom of the moving block (9), the telescopic end of the second electric push rod (10) is connected to the bottom of the moving block (9), a moving plate (11) is installed at the bottom of the second electric push rod (10), and a plurality of universal wheels (12) are installed at the bottom of the moving plate (11).

6. The lining crack detection device according to claim 1, characterized in that: A plurality of slots (105) are provided at the bottom of the fixed plate (1), a fixed frame (23) is provided on one side of the movable block (9), a latch (24) is provided in the fixed frame (23), the latch (24) is plugged into the slot (105), a limit plate (25) is provided on the latch (24), a spring (26) is provided on the limit plate (25), and the spring (26) is sleeved on the latch (24).

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