Concrete crack detection device

Abstract

The invention relates to the technical field of detection devices, and discloses a concrete crack detection device which comprises a cart, a supporting frame is fixedly connected to the top of the cart, a detection mechanism is arranged on the surface of the supporting frame, a marking device is arranged on the rear portion of the detection mechanism, and a cleaning device is arranged at the bottom of the cart. The detection mechanism comprises a first supporting plate, a servo motor, a first reciprocating lead screw, a movable support, a pipeline, a sliding rod, an electric sliding rail, a telescopic spray gun, a belt, a filtering box, a rotating rod and a stirring fan, the first supporting plate is fixedly connected to the front portion of the supporting frame, and the servo motor is fixedly connected to the front portion of the supporting frame. Therefore, when the molten glue is sprayed, each corner of the crack can be filled with the molten glue, accurate measurement of the depth of the crack is provided, and errors possibly occurring in a traditional method are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of detection devices, and in particular to a concrete crack detection device. Background Art

[0002] Concrete crack detection is an important quality control and maintenance task in construction projects. The appearance of cracks may affect the safety, durability and aesthetics of the structure. Therefore, timely and accurate detection and evaluation of the types of cracks and their development trends are of great significance for the maintenance and repair of concrete structures. Concrete cracks can generally be divided into shrinkage cracks: volume shrinkage caused by evaporation of water during the hardening process of concrete, which is common in concrete with improper initial maintenance; temperature cracks: due to the expansion and contraction of concrete under temperature changes, especially under conditions of large temperature differences; structural cracks: caused by structural loads or uneven settlement, which may be potential safety hazards.

[0003] The patent with application number CN202210291704.3 discloses a surface crack detection device for concrete structures, including a test bench for placing concrete blocks, and four rectangularly distributed frame plates are fixedly connected to the upper surface of the test bench, wherein a first round rod is set between two frame plates, and a second round rod is set between the other two frame plates, the first round rod and the second round rod are parallel to each other, and the first round rod and the second round rod are both slidably connected with a moving block, and the moving block can move along the axial direction of the first round rod and the second round rod, and a fixed rod is set between the two moving blocks, and a sliding seat is slidably connected to the fixed rod, and a filling component is provided on one side of the sliding seat, and the filling component is used to inject hot melt adhesive into the cracks of the concrete block. The patent injects hot melt adhesive into the cracks to measure the hot melt adhesive that is consistent with the shape of the crack space after shaping, so as to make the detection of concrete cracks more efficient, and at the same time, the measured crack information is more comprehensive and accurate.

[0004] During the use of the above device, when the machine detects cracks in the concrete floor, some blind corners of the oblique cracks are not easily sprayed when the telescopic spray gun sprays the melted glue, making the measured data inaccurate. Therefore, a concrete crack detection device is proposed to solve the above problem. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a concrete crack detection device in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a concrete crack detection device, including a cart, a support frame is fixedly connected to the top of the cart, a detection mechanism is arranged on the surface of the support frame, a marking device is arranged at the rear of the detection mechanism, and a cleaning device is arranged at the bottom of the cart; the detection mechanism includes a support plate 1, a servo motor, a reciprocating screw rod 1, a movable bracket, a pipeline, a sliding rod, an electric slide rail, a telescopic spray gun, a belt, a filter box, a rotating rod, and a stirring fan, the support plate 1 is fixedly connected to the front of the support frame, and the servo motor is fixedly connected to the support frame. At the front, the reciprocating screw rod 1 is fixedly connected to the output end of the servo motor, the movable bracket is movably connected to the circumferential surface of the reciprocating screw rod 1, the slide rod is fixedly connected to the inner wall of the movable bracket, the electric slide rail is slidably connected to the circumferential surface of the slide rod, the pipeline is fixedly connected to the top of the electric slide rail, and the telescopic spray gun is fixedly connected to the bottom of the electric slide rail. When the concrete crack detection device is started, when the servo motor drives the reciprocating screw rod 1 to rotate, the cross spiral groove on the reciprocating screw rod 1 drives the movable bracket to move forward and backward. When cracks are detected in the concrete, the movable bracket moves forward and backward, and the electric slide rail moves The inner wall of the bracket moves left and right, and the electric slide rail moves left and right to drive the telescopic spray gun to move left and right. The telescopic spray gun moves left and right to spray the melted glue sucked out of the pipeline in the filter box into the concrete cracks. By moving the telescopic spray gun left and right, the melted glue can fill every corner of the cracks when spraying the melted glue, providing accurate measurement of the crack depth, avoiding errors that may occur in traditional methods, and at the same time, the shape and structure of the colloid after solidification can directly reflect the contour and depth of the crack, which is convenient for subsequent evaluation. The belt drive is connected to the circumferential surface of the reciprocating screw rod, the filter box is fixedly connected to the top of the cart, and the rotating rod The filter box is rotatably connected to the inner wall of the filter box, the stirring fan is fixedly connected to the circumferential surface of the rotating rod, the electric slide rail is slidably connected to the inner wall of the movable bracket through the slide plate, the circumferential surface of the reciprocating screw rod is rotatably connected to the inner wall of the support frame, the circumferential surface of the rotating rod is transmission-connected to the inner wall of the belt, the circumferential surface of the servo motor is in contact with the top of the support plate 1, the belt is driven to rotate by the rotation of the reciprocating screw rod 1, the rotating rod is driven to rotate by the rotation of the belt, and the stirring fan is driven to rotate by the rotation of the rotating rod. By stirring the melted glue in the filter box, different components can be evenly distributed, thereby improving the measurement accuracy of the hot melt glue after use. Preferably, the marking device includes a guide block, a contact plate 1, a fixed plate, a collecting box, and a round block, the guide block is fixedly connected to the circumferential surface of the telescopic end of the telescopic spray gun, the fixed plate is fixedly connected to the rear part of the movable bracket, the contact plate 1 is slidably connected to the inner wall of the fixed plate, the collecting box is fixedly connected to the inner wall of the fixed plate, and the round block is rotatably connected to the inner wall of the collecting box, and when the telescopic spray gun moves downward, the guide block is driven to move downward, and when the guide block moves downward, it will contact the contact plate 1, so that the contact plate 1 moves backward, and the contact plate 1 moves backward and drives the slider to drive the round block to rotate through the slide groove, so that the dry powder in the collecting box is sprayed out and marked, so as to facilitate the subsequent repair of concrete cracks at the marked dry powder location. The marking device also includes a support rod, a connecting block, a rotating plate, a roller 1, a rolling roller, a slider, and a connecting rod, the support rod is fixedly connected to the inner wall of the round block, and the connecting block is fixedly connected The circumferential surface of the connecting rod is connected to the circumferential surface of the connecting block, the circumferential surface of the roller one contacts the inner wall of the collecting box, the rolling roller is fixedly connected at the axis of the roller one, the sliding block is fixedly connected to the bottom of the contact plate one, the connecting rod is fixedly connected to the bottom of the rotating plate, the top of the round block is provided with a guide groove, the bottom of the sliding block is located in the guide groove, the circumferential surface of the connecting rod is rotatably connected to the inner wall of the roller one, the inner wall of the collecting box is rotatably connected to the circumferential surface of the support rod, the support rod is driven to rotate by the rotation of the round block, the rotation of the support rod drives the connecting block to rotate, the rotation of the connecting block drives the rotating plate to rotate, the rotation of the rotating plate drives the connecting rod to rotate, the rotation of the connecting rod drives the roller one to rotate, the rotation of the roller one drives the rolling roller to follow the rotation, the rotation of the rolling roller crushes the agglomerated dry powder to prevent the dry powder in the collection box from agglomerating and falling into the bottom, which is inconvenient for marking.

[0007] Preferably, the cleaning device, support plate 2, hinged rod, knocking plate, contact plate 2, support plate 3, roller 2, reciprocating screw 2, and brush, the support plate 2 is fixedly connected to the bottom of the movable bracket, the hinged rod is fixedly connected to the inner wall of the support plate 2, the knocking plate is hinged to the circumferential surface of the hinged rod through a torsion spring, and the contact plate 2 is driven to move downward when the telescopic spray gun moves downward, and the contact plate 2 will contact with the knocking plate when it moves downward so that the knocking plate knocks the telescopic spray gun after the contact, thereby reducing bubbles generated during glue pouring and preventing bubbles from causing poor contact between the hot melt adhesive and the substrate, reducing the bonding effect, and causing inaccurate measurements of cracks after curing or peeling, affecting imperfect crack repair and poor repair effect. Problems caused by bubbles may require additional repair work, and reducing bubbles can improve overall construction Efficiency, the contact plate 2 is fixedly connected to the circumferential surface of the telescopic end of the telescopic spray gun, the support plate 3 is fixedly connected to the bottom of the trolley, the reciprocating screw rod 2 is rotatably connected to the inner wall of the support plate 3, the roller 2 is fixedly connected to the circumferential surface of the reciprocating screw rod 2, the brush is movably connected to the circumferential surface of the reciprocating screw rod 2, the front of the roller 2 is in contact with the rear of the support plate 3, the brush is in contact with the support plate 3, the reciprocating screw rod 2 is driven to rotate by the rotation of the roller 2, and the brush is driven to move back and forth left and right by the cross-type spiral groove on the reciprocating screw rod 2, so that the dynamic brush moves back and forth left and right to clean up the impurities on the ground, so that the cleaned surface makes the outline of the crack more obvious, which is convenient for accurately measuring the depth and width of the crack, avoiding the curing effect during glue pouring, and preventing external pollutants from mixing in the glue pouring process and affecting the measurement.

[0008] The present invention adopts the above technical solution to bring the following beneficial effects: 1. The concrete crack detection device operates through the cooperation among a support plate 1, a servo motor, a reciprocating screw rod 1, a mobile bracket, a pipeline, a slide rod, an electric slide rail, a telescopic spray gun, a belt, a filter box, and a rotating rod stirring fan. When the concrete crack detection device is started, the servo motor drives the reciprocating screw rod 1 to rotate, and the cross-type spiral groove on the reciprocating screw rod 1 drives the mobile bracket to move forward and backward. When cracks are detected in the concrete, the mobile bracket moves forward and backward, and the electric slide rail moves left and right on the inner wall of the mobile bracket. The electric slide rail moves left and right to drive the telescopic spray gun to move left and right. The telescopic spray gun moves left and right to move the pipeline in the past. The melted glue sucked out of the filter box is sprayed in the concrete cracks. By moving the telescopic spray gun left and right, the melted glue can fill every corner of the cracks when spraying, providing accurate measurement of the crack depth and avoiding possible errors in traditional methods. At the same time, the shape and structure of the colloid after solidification can directly reflect the outline and depth of the cracks, which is convenient for subsequent evaluation. The reciprocating screw drives the belt to rotate, the belt drives the rotating rod, and the rotating rod drives the stirring fan to rotate. By stirring the melted glue in the filter box, the different components can be evenly distributed, thereby improving the measurement accuracy of the hot melt adhesive after use.

[0009] 2. The concrete crack detection device operates through the cooperation among the guide block, the contact plate 1, the fixed plate, the collection box, the round block, the support rod, the connecting block, the rotating plate, the roller 1, the rolling roller, the slider, and the connecting rod. When the telescopic spray gun moves downward, the guide block is driven to move downward, and the guide block contacts the contact plate 1 when it moves downward, so that the contact plate 1 moves backward, and the contact plate 1 moves backward and drives the slider to rotate through the slide groove to spray the dry powder in the collection box and mark it, so that the marked dry powder location can be used to repair the concrete cracks later, and the support rod is driven to rotate by the rotation of the round block, and the rotation of the support rod drives the connecting block to rotate, and the rotation of the connecting block drives the rotating plate to rotate, and the rotation of the rotating plate drives the connecting rod to rotate, and the rotation of the connecting rod drives the roller 1 to rotate, and the rotation of the roller drives the rolling roller to follow the rotation, and the rolling roller crushes the agglomerated dry powder to prevent the dry powder in the collection box from agglomerating and falling into the bottom, which is inconvenient for marking.

[0010] 3. The concrete crack detection device operates through the cooperation among the support plate 2, the hinged rod, the knocking plate, the contact plate 2, the support plate 3, the roller 2, the reciprocating screw 2 and the brush. When the concrete crack detection device is started, the contact plate 2 is driven downward by the telescopic spray gun to move downward. When the contact plate 2 moves downward, it will contact the knocking plate so that the knocking plate contacts the telescopic spray gun, thereby reducing bubbles generated during glue pouring, preventing bubbles from causing poor contact between the hot melt adhesive and the substrate, reducing the bonding effect, and making inaccurate measurements of cracks after curing or peeling, affecting the imperfection of crack repair and poor repair effect. Problems caused by bubbles may require additional repair work, and reducing bubbles can improve the overall construction efficiency. The reciprocating screw 2 is driven to rotate by the rotation of the roller 2, and the brush is driven to move back and forth left and right by the cross-type spiral groove on the reciprocating screw 2, so that the dynamic brush moves back and forth left and right to clean up the impurities on the ground, so that the surface after cleaning makes the outline of the crack more obvious, which is convenient for accurately measuring the depth and width of the crack, avoiding the curing effect during glue pouring, and preventing external pollutants from mixing in the glue pouring process to affect the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the detection mechanism of the present invention; Figure 3 It is a schematic diagram of the marking device of the present invention; Figure 4 A half-section diagram of the marking device of the present invention; Figure 5 For the present invention Figure 4 A magnified view of the structure at center; Figure 6 It is a schematic diagram of the cleaning device of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at point B in the middle.

[0012] In the figure: 1, cart; 2, support frame; 3, detection mechanism; 301, support plate 1; 302, servo motor; 303, reciprocating screw rod 1; 304, mobile bracket; 305, pipeline; 306, slide rod; 307, electric slide rail; 308, telescopic spray gun; 309, belt; 310, filter box; 311, rotating rod; 312, stirring fan; 4, marking device; 401, guide block; 402, contact plate 1; 403, Fixed plate; 404, collecting box; 405, round block; 406, support rod; 407, connecting block; 408, rotating plate; 409, roller one; 410, rolling roller; 411, slider; 412, connecting rod; 5, cleaning device; 501, support plate two; 502, hinged rod; 503, knocking plate; 504, contact plate two; 505, support plate three; 506, roller two; 507, reciprocating screw two; 508, brush. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] See also Figure 1-Figure 7, one embodiment of the present invention is: a concrete crack detection device, including a cart 1, a support frame 2 is fixedly connected to the top of the cart 1, a detection mechanism 3 is arranged on the surface of the support frame 2, a marking device 4 is arranged at the rear of the detection mechanism 3, and a cleaning device 5 is arranged at the bottom of the cart 1; the detection mechanism 3 includes a support plate 301, a servo motor 302, a reciprocating screw rod 303, a movable bracket 304, a pipeline 305, a sliding rod 306, an electric slide rail 307, a telescopic spray gun 308, a belt 309, a filter box 310, a rotating rod 311, and a stirring fan 312, the support plate 301 is fixedly connected to the front of the support frame 2, the servo motor 302 is fixedly connected to the front of the support frame 2, the reciprocating screw rod 303 is fixedly connected to the servo motor At the output end of the machine 302, the movable bracket 304 is movably connected to the circumferential surface of the reciprocating screw rod 303, the slide rod 306 is fixedly connected to the inner wall of the movable bracket 304, the electric slide rail 307 is slidably connected to the circumferential surface of the slide rod 306, the pipeline 305 is fixedly connected to the top of the electric slide rail 307, and the telescopic spray gun 308 is fixedly connected to the bottom of the electric slide rail 307. When the concrete crack detection device is started, when the servo motor 302 drives the reciprocating screw rod 303 to rotate, the movable bracket 304 is driven to move forward and backward through the cross spiral groove on the reciprocating screw rod 303. When cracks are detected in the concrete, the movable bracket 304 moves forward and backward, and the electric slide rail 307 moves left and right on the inner wall of the movable bracket 304. The electric slide rail 307 moves left and right to drive The telescopic spray gun 308 moves left and right. The telescopic spray gun 308 moves left and right to spray the melted glue sucked out of the pipe 305 in the filter box 310 into the concrete cracks. By moving the telescopic spray gun 308 left and right, the melted glue can fill every corner of the cracks when spraying the melted glue, providing accurate measurement of the crack depth, avoiding errors that may occur in traditional methods, and at the same time, the shape and structure of the colloid after solidification can directly reflect the contour and depth of the cracks, which is convenient for subsequent evaluation and avoids errors that may occur in traditional methods. The belt 309 is transmission-connected to the circumferential surface of the reciprocating screw rod 303, the filter box 310 is fixedly connected to the top of the cart 1, the rotating rod 311 is rotationally connected to the inner wall of the filter box 310, and the stirring fan 312 is fixedly connected to the rotating rod 31 1, the electric slide rail 307 is slidably connected to the inner wall of the movable bracket 304 through the slide plate, the circumferential surface of the reciprocating screw rod 303 is rotatably connected to the inner wall of the support frame 2, the circumferential surface of the rotating rod 311 is transmission-connected to the inner wall of the belt 309, and the circumferential surface of the servo motor 302 is in contact with the top of the support plate 301. At the same time, the shape and structure of the colloid after solidification can directly reflect the contour and depth of the crack, which is convenient for subsequent evaluation. The belt 309 is driven to rotate by the rotation of the reciprocating screw rod 303, the rotating rod 311 is driven to rotate by the rotation of the belt 309, and the stirring fan 312 is driven to rotate by the rotation of the rotating rod 311. The melted glue in the stirring filter box 310 can be ensured to be evenly distributed by different components, thereby improving the measurement accuracy of the hot melt adhesive after use.

[0015] The marking device 4 includes a guide block 401, a contact plate 402, a fixed plate 403, a collecting box 404, and a round block 405. The guide block 401 is fixedly connected to the circumferential surface of the telescopic end of the telescopic spray gun 308, the fixed plate 403 is fixedly connected to the rear of the movable bracket 304, the contact plate 402 is slidably connected to the inner wall of the fixed plate 403, the collecting box 404 is fixedly connected to the inner wall of the fixed plate 403, and the round block 405 is rotatably connected to the inner wall of the collecting box 404. When the telescopic spray gun 308 moves downward, the guide block 401 is driven to move downward. When the guide block 401 moves downward, it will contact with the inner wall of the collecting box 404. The contact plate 402 contacts, so that the contact plate 402 moves backward. The movement of the contact plate 402 drives the slider 411 to drive the round block 405 to rotate through the slide groove, spraying the dry powder in the collection box 404 and marking it, so as to facilitate the subsequent repair of concrete cracks at the marked dry powder location. The marking device 4 also includes a support rod 406, a connecting block 407, a rotating plate 408, a roller 409, a rolling roller 410, a slider 411, and a connecting rod 412. The support rod 406 is fixedly connected to the inner wall of the round block 405, and the connecting block 407 is fixedly connected to the circumference of the support rod 406. The rotating plate 408 is fixedly connected to the circumferential surface of the connecting block 407, the circumferential surface of the roller 409 contacts the inner wall of the collecting box 404, the rolling roller 410 is fixedly connected to the axis of the roller 409, the slider 411 is fixedly connected to the bottom of the contact plate 402, the connecting rod 412 is fixedly connected to the bottom of the rotating plate 408, the top of the round block 405 is provided with a guide groove, the bottom of the slider 411 is located in the guide groove, the circumferential surface of the connecting rod 412 is rotatably connected to the inner wall of the roller 409, and the inner wall of the collecting box 404 is rotatably connected to the circumferential surface of the support rod 406 The inner wall of the collecting box 404 is rotatably connected to the circumferential surface of the supporting rod 406, and the supporting rod 406 is driven to rotate by the rotation of the round block 405, and the supporting rod 406 is driven to rotate by the rotation of the connecting block 407, and the connecting block 407 is driven to rotate the rotating plate 408, and the rotating plate 408 is driven to rotate the connecting rod 412, and the connecting rod 412 is driven to rotate the roller 409, and the roller 409 is driven to drive the crushing roller 410 to follow the rotation, and the crushing roller 410 is rotated to crush the agglomerated dry powder to prevent the dry powder in the collecting box 404 from agglomerating and falling into the bottom, which is not convenient for marking.

[0016] Working principle: When the concrete crack detection device is started, the servo motor 302 drives the reciprocating screw 303 to rotate, and the cross-type spiral groove on the reciprocating screw 303 drives the mobile bracket 304 to move forward and backward. When cracks are detected in the concrete, the mobile bracket 304 moves forward and backward, and the electric slide rail 307 moves left and right on the inner wall of the mobile bracket 304. The electric slide rail 307 moves left and right to drive the telescopic spray gun 308 to move left and right. The telescopic spray gun 308 moves left and right to spray the melted glue sucked out of the filter box 310 by the pipe 305 into the concrete cracks. By moving the telescopic spray gun left and right, the melted glue sucked out of the filter box 310 by the pipe 305 is sprayed into the concrete cracks. The gun 308 enables the melted glue to fill every corner of the crack when it is sprayed, providing accurate measurement of the crack depth and avoiding possible errors in traditional methods. At the same time, the shape and structure of the colloid after solidification can directly reflect the outline and depth of the crack, which is convenient for subsequent evaluation. The reciprocating screw 303 rotates to drive the belt 309 to rotate, and the belt 309 rotates to drive the rotating rod 311 to rotate, and the rotating rod 311 rotates to drive the stirring fan 312 to rotate. The melted glue in the stirring filter box 310 can be ensured to be evenly distributed, thereby improving the measurement accuracy of the hot melt adhesive after use.

[0017] When the telescopic spray gun 308 moves downward, the guide block 401 is driven to move downward, and the guide block 401 moves downward and contacts with the contact plate 402, so that the contact plate 402 moves backward, and the contact plate 402 moves backward and drives the slider 411 to rotate the round block 405 through the slide slot, so that the dry powder in the collection box 404 is sprayed out and marked, so as to facilitate the subsequent repair of concrete cracks at the marked dry powder location, and the support rod 406 is driven to rotate by the rotation of the round block 405, and the support rod 406 is driven to rotate by the rotation of the connecting block 407, and the connecting block 407 is driven to rotate the rotating plate 408, and the rotating plate 408 is driven to rotate the connecting rod 412, and the connecting rod 412 is driven to rotate the roller 409, and the roller 409 is driven to rotate and drive the rolling roller 410 to rotate, and the rolling roller 410 is rotated to crush the agglomerated dry powder to prevent the dry powder in the collection box 404 from agglomerating and falling into the bottom, which is not convenient for marking.

[0018] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, the cleaning device 5, the second support plate 501, the hinged rod 502, the knocking plate 503, the second contact plate 504, the third support plate 505, the second roller 506, the second reciprocating screw rod 507, and the brush 508, the second support plate 501 is fixedly connected to the bottom of the movable bracket 304, the hinged rod 502 is fixedly connected to the inner wall of the second support plate 501, and the knocking plate 503 is hinged to the circumferential surface of the hinged rod 502 through a torsion spring. When the concrete crack is detected, When the measuring device is started, the telescopic spray gun 308 moves downward and drives the contact plate 504 to move downward. When the contact plate 504 moves downward, it will contact the knocking plate 503, so that the knocking plate 503 knocks the telescopic spray gun 308 after contacting, thereby reducing bubbles generated during glue pouring, preventing bubbles from causing poor contact between the hot melt adhesive and the substrate, reducing the bonding effect, and making the measurement of the cracks after curing or peeling inaccurate, affecting the imperfection of the crack repair, poor repair effect, and problems caused by bubbles. Additional repair work may be required. Reducing bubbles can improve overall construction efficiency. The contact plate 2 504 is fixedly connected to the circumferential surface of the telescopic end of the telescopic spray gun 308. The support plate 3 505 is fixedly connected to the bottom of the cart 1. The reciprocating screw rod 2 507 is rotatably connected to the inner wall of the support plate 3 505. The roller 2 506 is fixedly connected to the circumferential surface of the reciprocating screw rod 2 507. The brush 508 is movably connected to the circumferential surface of the reciprocating screw rod 2 507. The front of the roller 2 506 is aligned with the rear of the support plate 3 505. They are in contact with each other, and the brush 508 is in contact with the support plate three 505. The reciprocating screw rod 2 507 is driven to rotate through the rotation of the roller two 506. The cross-type spiral groove on the reciprocating screw rod 2 507 drives the brush 508 to move back and forth left and right, so that the moving brush 508 moves back and forth left and right to clean the impurities on the ground, so that the outline of the cracks on the cleaned surface is more obvious, which is convenient for accurately measuring the depth and width of the cracks, avoiding the curing effect during the glue pouring, and preventing external pollutants from mixing in during the glue pouring process to affect the measurement.

[0019] Working principle: when the concrete crack detection device is started, the telescopic spray gun 308 moves downward and drives the contact plate 2 504 to move downward. When the contact plate 2 504 moves downward, it will contact the knocking plate 503 so that the knocking plate 503 contacts the telescopic spray gun 308, thereby reducing bubbles generated during glue pouring, preventing bubbles from causing poor contact between the hot melt adhesive and the substrate, reducing the bonding effect, and making inaccurate measurements of cracks after curing or peeling, affecting imperfect crack repair and poor repair effect. Problems caused by bubbles may require additional repair work, and reducing bubbles can improve the overall construction efficiency. The reciprocating screw rod 2 507 is driven to rotate by the rotation of the roller 2 506, and the brush 508 is driven to move back and forth left and right by the cross-type spiral groove on the reciprocating screw rod 2 507, so that the dynamic brush 508 moves back and forth left and right to clean up the impurities on the ground, so that the cleaned surface makes the outline of the crack more obvious, which is convenient for accurately measuring the depth and width of the crack, avoiding the curing effect during glue pouring, and preventing external pollutants from mixing in the glue pouring process and affecting the measurement.

[0020] The present invention provides a concrete crack detection device. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A concrete crack detection device, comprising a cart (1), characterized in that: The top of the cart (1) is fixedly connected to a support frame (2), a detection mechanism (3) is provided on the surface of the support frame (2), a marking device (4) is provided at the rear of the detection mechanism (3), and a cleaning device (5) is provided at the bottom of the cart (1); The detection mechanism (3) comprises a support plate (301), a servo motor (302), a reciprocating screw (303), a movable bracket (304), a pipeline (305), a sliding rod (306), an electric slide rail (307), a telescopic spray gun (308), a belt (309), a filter box (310), a rotating rod (311), and a stirring fan (312). The support plate (301) is fixedly connected to the front of the support frame (2), the servo motor (302) is fixedly connected to the front of the support frame (2), the reciprocating screw (303) is fixedly connected to the output end of the servo motor (302), and the movable bracket (304) is movably connected to the reciprocating screw. The sliding rod (306) is fixedly connected to the inner wall of the movable bracket (304), the electric slide rail (307) is slidably connected to the circumferential surface of the sliding rod (306), the pipe (305) is fixedly connected to the top of the electric slide rail (307), the telescopic spray gun (308) is fixedly connected to the bottom of the electric slide rail (307), the belt (309) is transmission-connected to the circumferential surface of the reciprocating screw rod (303), the filter box (310) is fixedly connected to the top of the trolley (1), the rotating rod (311) is rotationally connected to the inner wall of the filter box (310), and the stirring fan (312) is fixedly connected to the circumferential surface of the rotating rod (311).

2. A concrete crack detection device according to claim 1, characterized in that: The electric slide rail (307) is slidably connected to the inner wall of the movable bracket (304) via a slide plate, and the circumferential surface of the reciprocating screw rod (303) is rotationally connected to the inner wall of the support frame (2).

3. A concrete crack detection device according to claim 2, characterized in that: The circumferential surface of the rotating rod (311) is in transmission connection with the inner wall of the belt (309), and the circumferential surface of the servo motor (302) is in contact with the top of the first supporting plate (301).

4. A concrete crack detection device according to claim 3, characterized in that: The marking device (4) comprises a guide block (401), a contact plate (402), a fixed plate (403), a collection box (404), and a round block (405); the guide block (401) is fixedly connected to the circumferential surface of the telescopic end of the telescopic spray gun (308); the fixed plate (403) is fixedly connected to the rear of the movable bracket (304); the contact plate (402) is slidably connected to the inner wall of the fixed plate (403); the collection box (404) is fixedly connected to the inner wall of the fixed plate (403); and the round block (405) is rotatably connected to the inner wall of the collection box (404).

5. A concrete crack detection device according to claim 4, characterized in that: The marking device (4) also includes a support rod (406), a connecting block (407), a rotating plate (408), a roller one (409), a crushing roller (410), a slider (411), and a connecting rod (412), wherein the support rod (406) is fixedly connected to the inner wall of the round block (405), the connecting block (407) is fixedly connected to the circumferential surface of the support rod (406), the rotating plate (408) is fixedly connected to the circumferential surface of the connecting block (407), the circumferential surface of the roller one (409) is in contact with the inner wall of the collecting box (404), the crushing roller (410) is fixedly connected to the axis of the roller one (409), the slider (411) is fixedly connected to the bottom of the contact plate one (402), and the connecting rod (412) is fixedly connected to the bottom of the rotating plate (408).

6. A concrete crack detection device according to claim 5, characterized in that: A guide groove is provided on the top of the round block (405), the bottom of the sliding block (411) is located in the guide groove, the circumferential surface of the connecting rod (412) is rotatably connected to the inner wall of the roller 1 (409), the inner wall of the collecting box (404) is rotatably connected to the circumferential surface of the supporting rod (406), and the collecting box (404) is rotatably connected to the supporting rod (406).

7. A concrete crack detection device according to claim 6, characterized in that: The cleaning device (5), the second support plate (501), the hinged rod (502), the knocking plate (503), the second contact plate (504), the third support plate (505), the second roller (506), the second reciprocating screw rod (507), and the brush (508), wherein the second support plate (501) is fixedly connected to the bottom of the movable bracket (304), the hinged rod (502) is fixedly connected to the inner wall of the second support plate (501), and the knocking plate (503) is hinged to the contact plate (504) via a torsion spring. The circumferential surface of the hinged rod (502), the contact plate 2 (504) is fixedly connected to the circumferential surface of the telescopic end of the telescopic spray gun (308), the support plate 3 (505) is fixedly connected to the bottom of the trolley (1), the reciprocating screw rod 2 (507) is rotatably connected to the inner wall of the support plate 3 (505), the roller 2 (506) is fixedly connected to the circumferential surface of the reciprocating screw rod 2 (507), and the brush (508) is movably connected to the circumferential surface of the reciprocating screw rod 2 (507).

8. A concrete crack detection device according to claim 7, characterized in that: The front portion of the second roller (506) and the rear portion of the third support plate (505) are in contact with each other, and the brush (508) is in contact with the third support plate (505).

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