Building crack detection device

Abstract

The utility model relates to the technical field of crack detection, in particular to a building crack detection device which comprises a base, self-locking universal wheels, a detector, a detection head and a stabilizing device, the self-locking universal wheels are fixedly installed on the surface of the base, the detector is fixedly connected with the surface of the base, the detection head is connected with the detector through a data line, and the stabilizing device is connected with the detector. The stabilizing device is arranged on the surface of the base and comprises two sets of screw rods, the screw rods penetrate through the surface of the base and are rotationally connected with fixing frames, the fixing frames are fixedly connected with the surface of the base, and a first motor is fixedly installed on the surface of any fixing frame. The output end of the first motor is fixedly connected with the surface of any screw, gears are fixedly connected to the surfaces of the screws, and rack rods are connected to the surfaces of the gears in an engaged mode. According to the utility model, by arranging the stabilizing device, the detection height can be adjusted to detect a higher crack, and meanwhile, the gravity center of the equipment is reduced to avoid overturning of the equipment due to height change, so that the stability of the equipment is effectively improved.

Description

Technical Field

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

[0002] Building cracks are cracking phenomena that occur in the building parts of building structures. According to the different materials of the materials themselves, they can be divided into concrete building cracks, brick masonry building cracks, new partition board cracks, and cracks generated by buildings of different materials. After cracks occur, it is necessary for workers to measure and detect them, and then take corresponding protective measures, and detection equipment is required.

[0003] The prior art such as the Chinese patent with the publication number CN220508090U discloses a crack detection device for building structure detection, including a moving frame, and a measuring instrument is arranged at the top of the moving frame; a lifting component is arranged at the top of the moving frame; the lifting component includes an anti-slip sleeve, one end of the anti-slip sleeve is fixedly connected to one end of a rotating disc, the other end of the rotating disc is fixedly connected to a first rotating rod, the first rotating rod is fixedly connected to a second gear, the second gear meshes with a group of third gears, and both groups of third gears are fixedly connected to a first threaded rod; through the structural design of the lifting component, the function of lifting the height of the measuring instrument is realized, and the problem that when using the crack detection device to measure cracks, due to the different positions of the cracks, when facing cracks at a higher position, workers may not be able to adjust the measuring instrument to a suitable position, and then cannot measure it is solved.

[0004] In order to solve the problems of insufficient stability and applicability of the equipment during building crack detection, most of the existing building crack detection equipment can only adjust the detection height and the horizontal position of the detection instrument, but when adjusting the height, the center of gravity of the equipment will change. Especially when detecting cracks at a high place, the equipment may overturn due to the change of the center of gravity, and there is a lack of adjustment means for the distance between the detection instrument and the crack. After the base of the equipment contacts the wall, the detection equipment cannot move forward any more, so improvements need to be made. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a building crack detection device to solve the shortcomings of insufficient stability and applicability of the equipment during building crack detection in the prior art.

[0006] To achieve the above object, the utility model adopts the following technical solutions: a building crack detection device, comprising a base, self-locking universal wheels, a detector, a detection head and a stabilizing device. The self-locking universal wheels are fixedly installed on the surface of the base. The detector is fixedly connected to the surface of the base. The detection head is connected to the detector through a data cable. The stabilizing device is arranged on the surface of the base. The stabilizing device includes screws. The number of the screws is two groups and they are symmetrically arranged. The screws penetrate through the surface of the base and are rotatably connected to a fixing frame. The fixing frame is fixedly connected to the surface of the base. A first motor is fixedly installed on the surface of any one of the fixing frames. The output end of the first motor is fixedly connected to the surface of any one of the screws. A gear is fixedly connected to the surface of the screw. A rack bar is meshed and connected to the surface of the gear. An expansion rod is fixedly connected to the surface of the rack bar. A spring is sleeved and connected to the surface of the expansion rod. One end of the spring is fixedly connected to the surface of the rack bar. The other end of the spring is fixedly connected to a leg. The leg is fixedly connected to one end of the expansion rod.

[0007] Further, a dovetail groove is formed on the surface of the base. Dovetail blocks are fixedly connected to the surfaces of the rack bars. The dovetail blocks are slidably connected to the surfaces of the dovetail grooves.

[0008] Further, belt pulleys are fixedly connected to the surfaces of the screws. A conveyor belt is connected to the surfaces of the belt pulleys for transmission.

[0009] Further, movable sleeves are threadedly connected to the surfaces of the screws. The movable sleeves are sleeved and connected to the surfaces of the screws. A same detection table is fixedly connected to the surfaces of the two groups of movable sleeves. A handle is fixedly connected to the surface of the base.

[0010] Further, an adjusting device is arranged on the surface of the detection table. The adjusting device includes a second motor. The second motor is fixedly installed on the surface of the detection table. The output end of the second motor is fixedly connected to a bidirectional threaded rod. The bidirectional threaded rod is rotatably connected to the inner wall of the detection table. A placement groove is formed on the surface of the detection table. The bidirectional threaded rod is arranged in the placement groove. A movable block is threadedly connected to the surface of the bidirectional threaded rod. The movable block is slidably connected to the surface of the placement groove.

[0011] Further, the number of the movable blocks is two groups and they are symmetrically arranged. A first connecting rod is rotatably connected to the surface of each of the movable blocks. A second connecting rod is rotatably connected to the surface of each of the movable blocks. A same central column is rotatably connected to the surfaces of the first connecting rod and the second connecting rod. The first connecting rod and the second connecting rod are cross-rotatably connected through the central column.

[0012] Furthermore, the number of connecting rods 1 and 2 is two groups and they are symmetrically arranged. The other ends of the two groups of connecting rods 1 and 2 are rotatably connected to a group of sliders, the sliders are fixedly connected to the surface of the detection head, the surface of the sliders is slidably connected to guide columns, and both ends of the guide columns are fixedly connected to protective covers.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, by setting a stabilizing device, when it is necessary to adjust the height of the detection head, the motor is started to rotate a set of screws connected thereto, and under the action of the pulley and the conveyor belt, the other set of screws rotate synchronously, so that the two sets of movable sleeves move the detection platform upward to achieve the height adjustment of the detection head. At the same time, the rotation of the screw drives the gear to rotate, so that the two sets of rack rods meshing with each set of gears move in opposite directions, thereby driving the legs to move in the direction away from the screw, so that the center of gravity of the equipment is lowered, and the equipment is prevented from overturning due to the change of the center of gravity of the equipment caused by the rise of the detection platform. After the detection is completed, the motor is reversed to make the detection platform descend and the legs are retracted at the same time. The equipment is moved by using the handle and the self-locking universal wheel. The telescopic rod and the spring are set so that the legs will not be in hard contact with the ground, so as to avoid affecting the movement of the legs and the equipment. The dovetail block and the dovetail groove are set to ensure that it will not separate from the base without affecting the movement of the rack rod. By setting a stabilizing device, the detection height can be adjusted to detect higher cracks, and at the same time, the center of gravity of the equipment is lowered to avoid the equipment from overturning due to the height change, thereby effectively improving the stability of the equipment.

[0015] 2. In the utility model, by setting an adjusting device, starting motor 2 makes the bidirectional threaded rod rotate, thereby driving the two groups of movable blocks to slide toward or away from each other in the placement groove, so that connecting rod 1 and connecting rod 2 drive the protective cover to move forward and backward. When in use, the detection head is extended forward from the base range to prevent the base from affecting the detection head from approaching the crack. When not in use, the detection head is returned to the base range to avoid accidental collision due to excessive extension. At the same time, it can drive the slider and the detection head to move toward or away from each other along the guide column, so that the distance between the detection heads can be adjusted to adapt to different cracks. By setting the adjusting device, the distance of the detection head being extended can be adjusted to ensure that it is as close to the crack as possible, and the distance between the detection heads can be adjusted to adapt to different cracks, thereby effectively improving the applicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of a building crack detection device is proposed for the utility model;

[0017] Figure 2 A partial structural schematic diagram of a stabilizing device in a building crack detection device is proposed for the utility model;

[0018] Figure 3 This is a partial structural schematic diagram of a stabilizing device in a building crack detection device proposed by the present utility model;

[0019] Figure 4 This is a partial structural schematic diagram of an adjusting device in a building crack detection device proposed by the present utility model;

[0020] Figure 5 This is a partial structural schematic diagram of an adjusting device in a building crack detection device proposed by the present utility model.

[0021] Legend description:

[0022] 1. Base; 2. Self-locking universal wheel; 3. Detector; 4. Detection head; 5. Stabilizing device; 501. Screw rod; 502. Fixed frame; 503. Motor 1; 504. Gear; 505. Rack bar; 506. Telescopic rod; 507. Spring; 508. Leg; 509. Dovetail groove; 510. Dovetail block; 511. Pulley; 512. Conveyor belt; 513. Movable sleeve; 514. Detection table; 515. Handle; 6. Adjusting device; 601. Motor 2; 602. Bi-directional threaded rod; 603. Placing groove; 604. Movable block; 605. Link 1; 606. Link 2; 607. Central column; 608. Slide block; 609. Guide post; 610. Protective cover. Specific implementation manner

[0023] Please refer to Figures 1-5 , the present utility model provides a technical solution: a building crack detection device, including a base 1, a self-locking universal wheel 2, a detector 3, a detection head 4 and a stabilizing device 5. The self-locking universal wheel 2 is fixedly installed on the surface of the base 1, the detector 3 is fixedly connected to the surface of the base 1, the detection head 4 is connected to the detector 3 through a data cable, and the stabilizing device 5 is arranged on the surface of the base 1.

[0024] Next, specifically describe the specific settings and functions of its stabilizing device 5 and adjusting device 6.

[0025] In this embodiment: the stabilizing device 5 includes a screw rod 501, the number of the screw rods 501 is two groups and they are symmetrically arranged, the screw rods 501 penetrate the surface of the base 1 and are rotatably connected to a fixing frame 502, the fixing frame 502 is fixedly connected to the surface of the base 1, a motor 503 is fixedly installed on the surface of any fixing frame 502, the output end of the motor 503 is fixedly connected to the surface of any screw rod 501, the surface of the screw rod 501 is fixedly connected to a gear 504, the surface of the gear 504 is meshingly connected to a rack rod 505, the surface of the rack rod 505 is fixedly connected to a telescopic rod 506, the surface of the telescopic rod 506 is sleeved with a spring 507, one end of the spring 507 is fixedly connected to the surface of the rack rod 505, the other end of the spring 507 is fixedly connected to a leg 508, and the leg 508 is fixedly connected to one end of the telescopic rod 506.

[0026] The effects achieved by the above components are: starting the motor 503 causes the screw 501 to rotate, and then the gear 504 rotates, driving the two sets of rack rods 505 meshing with the gear 504 to move in opposite directions, and then driving the support leg 508 to move away from the screw 501, so that the center of gravity of the equipment is lowered, avoiding the equipment from overturning due to the change in the center of gravity of the equipment. After the detection is completed, the motor 503 is reversed to retract the support leg 508. The telescopic rod 506 and the spring 507 are set so that the support leg 508 will not be in hard contact with the ground, avoiding affecting the movement of the support leg 508 and the equipment.

[0027] Specifically, a dovetail groove 509 is formed on the surface of the base 1 , and a dovetail block 510 is fixedly connected to the surface of the rack rod 505 , and the dovetail block 510 is slidably connected to the surface of the dovetail groove 509 .

[0028] The effect achieved by the above components is that the dovetail block 510 and the dovetail groove 509 are arranged to ensure that the rack rod 505 will not separate from the base 1 without affecting its movement.

[0029] Specifically, the surfaces of the screw rods 501 are fixedly connected with pulleys 511 , and the surfaces of the pulleys 511 are conveyingly connected with conveyor belts 512 .

[0030] The effect achieved by the above components is: under the action of the pulley 511 and the conveyor belt 512, the motor 1 503 causes one group of screw rods 501 to rotate, and the other group of screw rods 501 will also rotate synchronously.

[0031] Specifically, the surface of the screw rod 501 is threadedly connected with a movable sleeve 513, and the movable sleeve 513 is sleeved and connected to the surface of the screw rod 501. The surfaces of the two sets of movable sleeves 513 are fixedly connected to the same testing platform 514, and the surface of the base 1 is fixedly connected to a handle 515.

[0032] The effects achieved by the above components are as follows: When the screw rod 501 rotates, the movable sleeve 513 moves up and down, thereby realizing the adjustment of the detection height. Since the two groups of movable sleeves 513 are fixedly connected to the same detection table 514, the movable sleeve 513 will only move up and down without rotation. The handle 515 is provided to facilitate the movement of the device.

[0033] Specifically, an adjustment device 6 is provided on the surface of the detection table 514. The adjustment device 6 includes a second motor 601. The second motor 601 is fixedly installed on the surface of the detection table 514. The output end of the second motor 601 is fixedly connected to a bidirectional threaded rod 602. The bidirectional threaded rod 602 is rotatably connected to the inner wall of the detection table 514. A placement groove 603 is formed on the surface of the detection table 514. The bidirectional threaded rod 602 is arranged in the placement groove 603. A movable block 604 is threadedly connected to the surface of the bidirectional threaded rod 602. The movable block 604 is slidably connected to the surface of the placement groove 603.

[0034] The effects achieved by the above components are as follows: Starting the second motor 601 causes the bidirectional threaded rod 602 to rotate, thereby driving the movable block 604 to slide towards or away from each other in the placement groove 603. The placement groove 603 is provided to limit the movement of the movable block 604 so that it can only slide without rotating.

[0035] Specifically, the number of movable blocks 604 is two and they are symmetrically arranged. A first connecting rod 605 is rotatably connected to the surface of each movable block 604. A second connecting rod 606 is rotatably connected to the surface of each movable block 604. The surfaces of the first connecting rod 605 and the second connecting rod 606 are rotatably connected to the same central column 607. The first connecting rod 605 and the second connecting rod 606 are cross-rotatably connected through the central column 607.

[0036] The effects achieved by the above components are as follows: The two groups of movable blocks 604 moving towards or away from each other cause the first connecting rod 605 and the second connecting rod 606 to drive the detection head 4 to move back and forth. When in use, the detection head 4 extends forward beyond the range of the base 1 to avoid the base 1 affecting the detection head 4 approaching the crack. When not in use, the detection head 4 returns to within the range of the base 1 to avoid accidental collision due to excessive extension.

[0037] Specifically, the number of the first connecting rod 605 and the second connecting rod 606 is two and they are symmetrically arranged. The other ends of the two groups of the first connecting rod 605 and the second connecting rod 606 are rotatably connected to a group of sliders 608. The sliders 608 are fixedly connected to the surface of the detection head 4. A guide post 609 is slidably connected to the surface of the slider 608. The two ends of the guide post 609 are fixedly connected to a protective cover 610.

[0038] The effects achieved by the above components are: connecting rod 1 605 and connecting rod 2 606 can drive the slider 608 and the detection head 4 to move toward or away from each other along the guide column 609, so that the distance between the detection heads 4 can be adjusted to adapt to different cracks. The protective cover 610 is set to protect the detection head 4.

[0039] Working principle: By setting the stabilizing device 5, when it is necessary to adjust the height of the detection head 4, the motor 1 503 is started to rotate a set of screw rods 501 connected thereto. Under the action of the pulley 511 and the conveyor belt 512, the other set of screw rods 501 rotate synchronously, so that the two sets of movable sleeves 513 move upward with the detection platform 514 to achieve the height adjustment of the detection head 4. At the same time, the rotation of the screw rod 501 drives the gear 504 to rotate, so that the two sets of rack rods 505 meshing with each set of gears 504 move in opposite directions, thereby driving the legs 508 away from the screw rods 501. 01, so that the center of gravity of the equipment is lowered, so as to avoid the equipment overturning due to the change of the center of gravity of the equipment caused by the rise of the detection platform 514. After the detection is completed, the motor 503 is reversed to make the detection platform 514 descend and the legs 508 are retracted. The equipment is moved by using the handle 515 and the self-locking universal wheel 2. The telescopic rod 506 and the spring 507 are set so that the legs 508 will not have hard contact with the ground to avoid affecting the movement of the legs 508 and the equipment. The dovetail block 510 and the dovetail groove 509 are set so as not to affect the movement of the rack rod 505. Under the premise of movement, it is ensured that it will not separate from the base 1. By setting up a stabilizing device 5, the detection height can be adjusted to detect higher cracks, and at the same time, the center of gravity of the equipment is lowered to prevent the equipment from overturning due to height changes, which effectively improves the stability of the equipment. In addition, by setting up an adjusting device 6, the motor 2 601 is started to rotate the bidirectional threaded rod 602, thereby driving the two groups of movable blocks 604 to slide towards or away from each other in the placement groove 603, so that the connecting rod 1 605 and the connecting rod 2 606 drive the protective cover 610 to move forward and backward. When in use, the detection head 4 is extended out of the range of the base 1 to prevent the base 1 from affecting the detection head 4 to approach the crack. When not in use, the detection head 4 is returned to the range of the base 1 to avoid accidental collision due to excessive extension. At the same time, the slider 608 and the detection head 4 can be driven to move towards or away from each other along the guide column 609, so that the distance between the detection heads 4 is adjusted to adapt to different cracks. By setting up the adjusting device 6, the distance of the detection head 4 extending can be adjusted to ensure that it is as close to the crack as possible, and the distance between the detection heads 4 can be adjusted to adapt to different cracks, which effectively improves the applicability of the equipment.

Claims

1. A building crack detection device, comprising a base (1), a self-locking universal wheel (2), a detector (3), a detection head (4) and a stabilizing device (5), characterized in that: The self-locking universal wheel (2) is fixedly mounted on the surface of the base (1); the detector (3) is fixedly connected to the surface of the base (1); the detection head (4) is connected to the detector (3) via a data cable; the stabilizing device (5) is arranged on the surface of the base (1); the stabilizing device (5) comprises screw rods (501); the screw rods (501) are in two groups and are symmetrically arranged; the screw rods (501) penetrate the surface of the base (1) and are rotatably connected to a fixing frame (502); the fixing frame (502) is fixedly connected to the surface of the base (1); a motor (503) is fixedly mounted on the surface of any of the fixing frames (502). The output end of the motor 1 (503) is fixedly connected to the surface of any one of the screw rods (501); the surface of the screw rod (501) is fixedly connected to a gear (504); the surface of the gear (504) is meshingly connected to a rack rod (505); the surface of the rack rod (505) is fixedly connected to a telescopic rod (506); the surface of the telescopic rod (506) is sleeved with a spring (507); one end of the spring (507) is fixedly connected to the surface of the rack rod (505); the other end of the spring (507) is fixedly connected to a leg (508); the leg (508) is fixedly connected to one end of the telescopic rod (506).

2. A building crack detection device according to claim 1, characterized in that: A dovetail groove (509) is provided on the surface of the base (1), and a dovetail block (510) is fixedly connected to the surface of the rack rod (505), and the dovetail block (510) is slidably connected to the surface of the dovetail groove (509).

3. A building crack detection device according to claim 2, characterized in that: The surfaces of the screw rods (501) are fixedly connected to pulleys (511), and the surfaces of the pulleys (511) are conveyingly connected to conveyor belts (512).

4. A building crack detection device according to claim 3, characterized in that: The surfaces of the screw rods (501) are all threadedly connected with movable sleeves (513), the movable sleeves (513) are sleeved and connected to the surface of the screw rods (501), the surfaces of two groups of movable sleeves (513) are fixedly connected to the same testing platform (514), and the surface of the base (1) is fixedly connected to a handle (515).

5. A building crack detection device according to claim 4, characterized in that: The surface of the detection platform (514) is provided with an adjustment device (6), the adjustment device (6) comprising a second motor (601), the second motor (601) being fixedly mounted on the surface of the detection platform (514), the output end of the second motor (601) being fixedly connected with a bidirectional threaded rod (602), the bidirectional threaded rod (602) being rotatably connected to the inner wall of the detection platform (514), the surface of the detection platform (514) being provided with a placement groove (603), the bidirectional threaded rod (602) being arranged in the placement groove (603), the surface of the bidirectional threaded rod (602) being threadedly connected with a movable block (604), the movable block (604) being slidably connected to the surface of the placement groove (603).

6. A building crack detection device according to claim 5, characterized in that: The movable blocks (604) are provided in two groups and are symmetrically arranged. The surfaces of the movable blocks (604) are rotatably connected to connecting rod 1 (605). The surfaces of the movable blocks (604) are rotatably connected to connecting rod 2 (606). The surfaces of connecting rod 1 (605) and connecting rod 2 (606) are rotatably connected to the same central column (607). The connecting rod 1 (605) and connecting rod 2 (606) are cross-rotatably connected via the central column (607).

7. A building crack detection device according to claim 6, characterized in that: The number of the connecting rod one (605) and the connecting rod two (606) is two groups and they are symmetrically arranged. The other ends of the two groups of connecting rods one (605) and connecting rods two (606) are rotatably connected to a group of sliders (608). The sliders (608) are fixedly connected to the surface of the detection head (4). The surface of the sliders (608) is slidably connected to guide columns (609). Both ends of the guide columns (609) are fixedly connected to protective covers (610).

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