Road, bridge and tunnel crack detection device

Abstract

The utility model belongs to the technical field of crack detection, and particularly relates to a road, bridge and tunnel crack detection device which comprises a detector main body, two groups of detection probes are mounted at the top of the detector main body; the middle part of the detection probe is fixedly connected with a sliding block; a plurality of groups of springs are fixedly connected to the inner wall of the bottom of the sliding block; the top of the spring is fixedly connected with a top plate; an adjusting rod is arranged at the top of the detection probe, and the two groups of sliding blocks are arranged on the inner wall of the adjusting rod in a sliding manner; a pressing plate is fixedly connected to the middle of the adjusting rod. By arranging the sliding block in the middle of the detection probe and by means of the straight adjusting rod, the levelness of the two groups of detection probes on the inner wall of the adjusting rod during working can be improved, the problem that the measurement effect is poor due to angle inclination between the two groups of detection probes is solved, and meanwhile the situation that it is difficult for a worker to operate a detector body screen with one hand is reduced. And the other hand is used for fixing the positions of the two groups of detection probes.

Description

Technical Field

[0001] The utility model relates to the technical field of crack detection, in particular to a road bridge tunnel crack detection device. Background Art

[0002] Roads, bridges and tunnels are a large-scale infrastructure project and an important part of transportation lines. They include roadbed projects, bridge projects and tunnel projects. These projects are mainly made of concrete and steel, as well as waterproof materials, thermal insulation materials and decorative materials.

[0003] Cracks are one of the common defects in roads, bridges and tunnels. In order to promptly detect potential safety hazards in roads, bridges and tunnels, workers usually contact the two sets of measuring probes on the crack detector with the detection wall and detect the cracks in the wall.

[0004] Through long-term observation, it is found that when using the existing crack detector, two sets of measuring probes are usually required to be placed horizontally on the detection wall, and it is difficult to operate the crack detector screen with one hand and hold the two sets of measuring probes in contact with the wall with the other hand, resulting in inaccurate detection data when detecting wall cracks; therefore, a road bridge tunnel crack detection device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model proposes a road bridge tunnel crack detection device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a road bridge tunnel crack detection device described in the utility model includes a detector body; two groups of detection probes are installed on the top of the detector body; a slider is fixedly connected to the middle of the detection probe; a plurality of groups of springs are fixedly connected to the inner wall of the bottom of the slider; a top plate is fixedly connected to the top of the spring; an adjustment rod is provided on the top of the detection probe, and two groups of sliders are slidably arranged on the inner wall of the adjustment rod; a pressure plate is fixedly connected to the middle of the adjustment rod.

[0007] Preferably, the end of the adjusting rod is fixedly connected to two sets of fixing frames; the middle part of the fixing frame is rotatably connected to a rotating wheel; the side wall of the detector body is fixedly connected to two sets of fixing parts, and the two sets of fixing parts are symmetrically arranged; a storage groove is opened inside the fixing part; the bottom inner wall of the storage groove is connected to a rotating plate with a torsion spring.

[0008] Preferably, a first elastic rope is fixedly connected to the middle of the rotating plate, and the first elastic rope is arranged to pass through the middle of the storage groove; a pull rod is fixedly connected to the end of the first elastic rope; the pull rod is arranged in a V shape; a limit piece matching the shape of the pull rod is fixedly connected to the middle of the detector body.

[0009] Preferably, a sliding rod is slidably connected to the middle of the pressure plate; a support plate is fixedly connected to the bottom of the sliding rod; and two sets of counterweight rods are fixedly connected to the bottom of the support plate.

[0010] Preferably, a second elastic rope is fixedly connected to the end of the counterweight rod; and a knocking ball is fixedly connected to the middle of the second elastic rope.

[0011] Preferably, a rubber plate is fixedly connected to the inner wall of the rotating plate; and the inner wall of the rubber plate is in contact with the end of the first elastic rope.

[0012] Preferably, a friction pad is fixedly connected to the middle portion of the rotating plate.

[0013] The utility model is beneficial in that:

[0014] 1. The road bridge and tunnel crack detection device described in the utility model has a slider in the middle of the detection probe, and with the help of a straight adjustment rod, the horizontality of the two groups of detection probes at the inner wall of the adjustment rod can be improved during operation, thereby reducing the problem of poor measurement effect caused by the angle tilt between the two groups of detection probes, and at the same time reducing the problem that it is difficult for workers to operate the main screen of the detector with one hand and fix the position of the two groups of detection probes with the other hand.

[0015] 2. The road bridge and tunnel crack detection device described in the utility model has two sets of fixing parts arranged on the outer wall of the detector body, which can store the unused adjustment rods, thereby reducing the need to separate and fix the detector body and the detection probe when placing the detector body and the detection probe as a whole, which causes the middle line of the detection probe to be entangled with the outside world. The convenience of transferring the detector body is improved, and the rotating wheel can reduce the wear when contacting the rotating plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the adjusting rod in the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the slider in the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the fixing member in the utility model;

[0021] Figure 5 for Figure 4 Enlarged view of point A.

[0022] In the figure: 1. detector body; 11. detection probe; 12. slider; 13. spring; 14. top plate; 15. adjustment rod; 16. pressure plate; 2. fixing frame; 21. rotating wheel; 22. fixing piece; 23. storage slot; 24. rotating plate; 3. first elastic rope; 31. pull rod; 32. limit piece; 4. sliding rod; 41. support plate; 42. counterweight rod; 5. second elastic rope; 51. knocking ball; 6. rubber plate; 7. friction pad. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 , 2As shown in Figure 3, a road bridge tunnel crack detection device includes a detector body 1; two groups of detection probes 11 are installed on the top of the detector body 1; a slider 12 is fixedly connected to the middle of the detection probe 11; a plurality of groups of springs 13 are fixedly connected to the inner wall of the bottom of the slider 12; a top plate 14 is fixedly connected to the top of the spring 13; an adjusting rod 15 is provided on the top of the detection probe 11, and the two groups of sliders 12 are slidably arranged on the inner wall of the adjusting rod 15; a pressing plate 16 is fixedly connected to the middle of the adjusting rod 15; when working, the staff needs to hang the detector body 1 on the neck, and at the same time, the lines at the ends of the two groups of detection probes 11 can be inserted on the top of the detector body 1, and the two groups of detection probes 11 are in contact with the concrete wall surface. By providing a slider 12 in the middle of the detection probe 11, when the staff needs to use the two groups of detection probes 11, the staff can pull the top of the two groups of detection probes 11, and the slider 12 will slide on the inner wall of the adjusting rod 15, After the positions of the two groups of detection probes 11 are adjusted, the staff can press the pressure plate 16 with one hand, so that when the adjusting rod 15 moves downward as a whole, its bottom will contact the top of the top plate 14. Continuing to press will squeeze the middle parts of the multiple springs 13 to change direction and fix the two groups of detection probes 11 synchronously. At this time, the staff can use the other hand to pick up the detector body 1 hung on the neck, and then release the pressure plate 16, and with the elastic force of the multiple springs 13, the adjusting rod 15 can be separated from the top plate 14. In this step, a slider 12 is set in the middle of the detection probe 11, and with the help of a straight adjustment rod 15, the horizontality of the two groups of detection probes 11 at the inner wall of the adjustment rod 15 can be improved during work, thereby reducing the problem of angle tilt between the two groups of detection probes 11, which causes poor measurement effect. At the same time, it can reduce the problem that it is difficult for the staff to operate the screen of the detector body 1 with one hand and fix the position of the two groups of detection probes 11 with the other hand.

[0025] like Figure 1 , 2As shown in , 4 and 5, the end of the adjusting rod 15 is fixedly connected to two groups of fixing frames 2; the middle part of the fixing frame 2 is rotatably connected to a rotating wheel 21; the side wall of the detector body 1 is fixedly connected to two groups of fixing parts 22, and the two groups of fixing parts 22 are symmetrically arranged; a storage groove 23 is opened inside the fixing part 22; the bottom inner wall of the storage groove 23 is connected to a rotating plate 24 by a torsion spring; during operation, by arranging two groups of fixing parts 22 on the outer wall of the detector body 1, when the staff needs to fix the adjusting rod 15 as a whole, the staff can first slide the two groups of detection probes 11 toward the middle of the pressure plate 16, at this time, the staff can align the two groups of fixing frames 2 at the end of the adjusting rod 15 with the middle of the rotating plate 24, and push them into the storage groove 23, so that the rotating wheel 21 will rotate under the action of friction after contacting with the rotating plate 24. At the same time, the rotating plate 24 will be squeezed to rotate until the rotating wheel 21 is completely stored in the inner wall of the storage groove 23, so that the supporting force between the rotating plates 24 is lost, and the rotating plate 24 can be vertically reset again with the help of the torque at its output end. When the adjusting rod 15 is used again, the two groups of rotating plates 24 are pressed in turn to rotate and the rotating wheel 21 can be taken out. This step is combined with two groups of fixing parts 22 provided on the outer wall of the detector body 1, which can store the unused adjusting rods 15 in position, reducing the need to separate and fix the detector body 1 and the detection probe 11 when the detector body 1 and the detection probe 11 are placed as a whole, and the problem of the middle line of the detection probe 11 being entangled with the outside world is caused, which improves the convenience of transferring the detector body 1, and cooperates with the rotating wheel 21 to reduce the wear when contacting with the rotating plate 24.

[0026] like Figure 1 , 4 As shown in Figure 5, a first elastic cord 3 is fixedly connected to the middle of the rotating plate 24, and the first elastic cord 3 is arranged to penetrate the middle of the storage groove 23; a pull rod 31 is fixedly connected to the end of the first elastic cord 3; the pull rod 31 is arranged in a V shape; a limiter 32 is fixedly connected to the middle of the detector body 1 and is arranged to match the shape of the pull rod 31; when working, the first elastic cord 3 is arranged in the middle of the rotating plate 24, so that when the staff needs to open the two sets of rotating plates 24 and take out the rotating wheel 21 inside the storage groove 23, the staff can pull the pull rod 31 arranged in the V shape, so that the pull rod 3 With the help of the first elastic rope 3, the rotating plate 24 will be synchronously pulled downward to move. At this time, the rotating wheel 21 can be taken out as a whole. After that, after loosening the pull rod 31, the pull rod 31 can be fixed on the middle part of the limiter 32 in cooperation with the pulling force of the rotating plate 24 to return to its original position. This step cooperates with the set pull rod 31 to improve the synchronization of the two groups of rotating plates 24 when they are moving, and reduces the problem that when taking out the adjusting rod 15, the staff needs to rotate the middle part of the rotating plate 24 in turn, which makes the adjusting rod 15 take out troublesome. At the same time, the position of the pull rod 31 can be limited and stored in cooperation with the limiter 32.

[0027] like Figure 2 As shown, a slide bar 4 is slidably connected to the middle part of the pressure plate 16; a support plate 41 is fixedly connected to the bottom of the slide bar 4; two groups of counterweight rods 42 are fixedly connected to the bottom of the support plate 41; during operation, by arranging the slide bar 4 in the middle part of the pressure plate 16, when adjusting the position of the detection probe 11, the staff can first pull the slide bar 4 to make the counterweight rod 42 move upward as a whole and separate from the detection probe 11, and then after the positions of the two groups of detection probes 11 are fixed, the staff can loosen the slide bar 4, and the gravity of the descending counterweight rod 42 can make the counterweight rod 42 contact with the two groups of detection probes 11, this step cooperates with the two groups of counterweight rods 42 to lift the detection probe 11 when detecting the ground, and the two groups of counterweight rods 42 can improve the stability of the detection probe 11 when it is working, and reduce the phenomenon of working position deviation of the detection probe 11.

[0028] like Figure 2 As shown, the end of the counterweight rod 42 is fixedly connected to a second elastic rope 5; the middle of the second elastic rope 5 is fixedly connected to a knocking ball 51; when working, by arranging the second elastic rope 5 in the middle of the two groups of counterweight rods 42, when the counterweight rod 42 is moving, under the action of inertia, it will drive the knocking ball 51 to shake in the middle of the second elastic rope 5, and the knocking ball 51 can hit the middle of the adjusting rod 15. This step, combined with the shaking knocking ball 51, can improve the cleanliness of the middle of the adjusting rod 15, and at the same time can further improve the tightness of the contact between the detection probe 11 and the detection ground.

[0029] like Figure 5 As shown, a rubber plate 6 is fixedly connected to the inner wall of the rotating plate 24; the inner wall of the rubber plate 6 is in contact with the end of the first elastic rope 3; when working, by arranging the rubber plate 6 made of soft material on the inner wall of the rotating plate 24, when the pull rod 31 drives the first elastic rope 3 to move, the rubber plate 6 will protect the end of the first elastic rope 3. This step cooperates with the rubber plate 6 to reduce the long-term torsional deformation of the connection at the end of the first elastic rope 3, so as to reduce the problem of separation and breakage between the end and the rotating plate 24, thereby improving the service life of the first elastic rope 3.

[0030] like Figure 5 As shown, a friction pad 7 is fixedly connected to the middle of the rotating plate 24; during operation, by arranging the friction pad 7 in the middle of the rotating plate 24, when the rotating wheel 21 comes into close contact with the rotating plate 24, the rotating wheel 21 will first come into contact with the friction pad 7. This step cooperates with the friction pad 7 to improve the stability of the rotating wheel 21 during rotation, and further reduce the wear between the rotating plate 24 when being squeezed.

[0031] The working principle is that the detector body 1 is hung on the neck, and the lines at the ends of the two groups of detection probes 11 can be inserted on the top of the detector body 1, and the two groups of detection probes 11 are in contact with the concrete wall. A slider 12 is provided in the middle of the detection probe 11, so that when the staff needs to use the two groups of detection probes 11, the staff can pull the top of the two groups of detection probes 11, and the slider 12 will slide on the inner wall of the adjustment rod 15 until the positions of the two groups of detection probes 11 are adjusted. The staff can press the pressing plate 16 with one hand, so that when the adjusting rod 15 moves downward as a whole, its bottom will contact the top of the top plate 14, and after continuing to press, the middle of the multiple springs 13 will be squeezed to change direction, and the two groups of detection probes 11 will be pressed. The detector body 1 is fixed synchronously. At this time, the staff can use the other hand to pick up the detector body 1 hung on the neck, and then release the pressure plate 16, and cooperate with the elastic force of multiple springs 13 to separate the adjusting rod 15 from the top plate 14. By providing two sets of fixing parts 22 on the outer wall of the detector body 1, when the staff needs to fix the adjusting rod 15 as a whole, the staff can first slide the two sets of detection probes 11 toward the middle of the pressure plate 16. At this time, the staff can align the two sets of fixing frames 2 at the end of the adjusting rod 15 with the middle of the rotating plate 24, and push them into the storage groove 23, so that the rotating wheel 21 will rotate under the action of friction after contacting with the rotating plate 24, and at the same time squeeze the rotating plate 24 to rotate until it rotates. After the wheel 21 is stored as a whole in the inner wall of the storage groove 23, the supporting force between the rotating plates 24 is lost, and the rotating plate 24 can be vertically reset again with the help of the torque at its output end. When the adjusting rod 15 is used again, the two groups of rotating plates 24 are pressed in turn to rotate and the rotating wheel 21 can be taken out. By providing a first elastic rope 3 in the middle of the rotating plate 24, when the staff needs to open the two groups of rotating plates 24 and take out the rotating wheel 21 inside the storage groove 23, the staff can pull the pull rod 31 set in a V shape, so that the pull rod 31 can synchronously pull the rotating plate 24 downward with the help of the first elastic rope 3. At this time, the rotating wheel 21 can be taken out as a whole, and then after loosening the pull rod 31, the pull rod 31 can be fixed in the limit position with the pulling force of resetting the rotating plate 24. On the middle part of the component 32, a slide bar 4 is arranged in the middle part of the pressure plate 16. When adjusting the position of the detection probe 11, the staff can first pull the slide bar 4 to make the counterweight rod 42 move upward as a whole and separate from the detection probe 11. After the positions of the two groups of detection probes 11 are fixed, the staff can loosen the slide bar 4, and the gravity of the counterweight rod 42 can make the counterweight rod 42 contact with the two groups of detection probes 11. By arranging a second elastic rope 5 in the middle part of the two groups of counterweight rods 42, when the counterweight rod 42 moves, under the action of inertia, it will drive the knocking ball 51 to shake in the middle part of the second elastic rope 5, and the knocking ball 51 can hit the middle part of the adjustment rod 15. By arranging a rubber plate 6 made of soft material on the inner wall of the rotating plate 24,When the pull rod 31 drives the first elastic rope 3 to move, the rubber plate 6 will protect the end of the first elastic rope 3. By arranging a friction pad 7 in the middle of the rotating plate 24, when the rotating wheel 21 is close to the rotating plate 24, the rotating wheel 21 will first contact the friction pad 7.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A road bridge tunnel crack detection device, comprising a detector body (1); two sets of detection probes (11) are installed on the top of the detector body (1); the characteristics are: A slider (12) is fixedly connected to the middle of the detection probe (11); a plurality of groups of springs (13) are fixedly connected to the inner wall of the bottom of the slider (12); a top plate (14) is fixedly connected to the top of the spring (13); an adjustment rod (15) is provided at the top of the detection probe (11), and two groups of sliders (12) are slidably arranged on the inner wall of the adjustment rod (15); a pressure plate (16) is fixedly connected to the middle of the adjustment rod (15).

2. A road bridge tunnel crack detection device according to claim 1, characterized in that: The ends of the adjusting rod (15) are fixedly connected to two sets of fixing frames (2); the middle of the fixing frames (2) is rotatably connected to a rotating wheel (21); the side walls of the detector body (1) are fixedly connected to two sets of fixing members (22), and the two sets of fixing members (22) are symmetrically arranged; a storage groove (23) is provided inside the fixing member (22); and a rotating plate (24) is connected to the inner wall of the bottom of the storage groove (23) by a torsion spring.

3. A road bridge tunnel crack detection device according to claim 2, characterized in that: A first elastic rope (3) is fixedly connected to the middle of the rotating plate (24), and the first elastic rope (3) is arranged to pass through the middle of the storage groove (23); a pull rod (31) is fixedly connected to the end of the first elastic rope (3); the pull rod (31) is arranged in a V shape; and a limiting member (32) matching the shape of the pull rod (31) is fixedly connected to the middle of the detector body (1).

4. A road bridge tunnel crack detection device according to claim 1, characterized in that: The middle of the pressure plate (16) is slidably connected to a slide bar (4); the bottom of the slide bar (4) is fixedly connected to a support plate (41); and the bottom of the support plate (41) is fixedly connected to two groups of counterweight rods (42).

5. A road bridge tunnel crack detection device according to claim 4, characterized in that: A second elastic rope (5) is fixedly connected to the end of the counterweight rod (42); and a knocking ball (51) is fixedly connected to the middle of the second elastic rope (5).

6. A road bridge tunnel crack detection device according to claim 3, characterized in that: A rubber plate (6) is fixedly connected to the inner wall of the rotating plate (24); the inner wall of the rubber plate (6) is arranged in contact with the end of the first elastic rope (3).

7. A road bridge tunnel crack detection device according to claim 2, characterized in that: A friction pad (7) is fixedly connected to the middle portion of the rotating plate (24).

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