A device for detecting, preventing and repairing cracks in prefabricated concrete components of construction projects

Abstract

The present invention provides a crack detection, prevention and repair device for precast concrete components of construction projects, which belongs to the technical field of precast concrete component detection. It solves the problems of the existing devices having a single detection method for precast concrete component cracks and lacking effective repair functions. It includes an external main control computer and a visual detection mechanism, an ultrasonic detection mechanism, a drilling mechanism, a conveying roller machine and a sorting mechanism arranged in sequence. The conveying roller machine is provided with a drying mechanism, which includes a dust hood and a hot air hood. The dust hood and the hot air hood are arranged on the upper part of the conveying roller machine. The upper part of the conveying roller machine is provided with a glue injection mechanism and a roller glue mechanism in sequence. The drilling mechanism is provided with a circulating dust suction mechanism. The present invention has high efficiency through assembly line detection, repair and sorting. The visual detection mechanism and the ultrasonic detection mechanism cooperate to effectively detect the depth and width of the cracks. The glue injection mechanism and the roller glue mechanism cooperate to stably and efficiently repair the cracks.

Description

Technical Field

[0001] The invention belongs to the technical field of precast concrete component detection, and relates to a precast concrete component detection device, in particular to a precast concrete component crack detection, prevention and repair device for construction engineering. Background Art

[0002] The prefabrication of concrete components is a process of prefabricating concrete components of buildings or structures in factories or construction sites. The use of prefabricated concrete components for assembly construction has the advantages of saving labor, overcoming seasonal influences, and facilitating year-round construction. Promoting the use of prefabricated concrete components is one of the important ways to achieve the industrialization of construction.

[0003] After the components are produced, they need to be air-dried or baked. There are many forms and types of cracks, as listed below:

[0004] 1. Design reasons

[0005] 1. Cracks in components caused by stress concentration due to sudden changes in the cross-section of the designed structure; 2. Improper application of prestress to components during design, resulting in cracks in components (eccentricity, excessive stress, etc.); 3. Too few or too thick structural steel bars in the design, resulting in cracks in components (such as wall panels and floor slabs); 4. The shrinkage and deformation of concrete components are not fully considered in the design; 5. The concrete grade used in the design is too high, resulting in excessive amount of ash, which is not conducive to shrinkage.

[0006] (II) Material reasons

[0007] 1. The mud content of coarse and fine aggregates is too high, which causes the shrinkage of concrete to increase. Poor aggregate particle grading or inappropriate discontinuous grading can easily cause the shrinkage of concrete to increase and induce cracks. 2. The finer the aggregate particle size and the greater the needle-like content, the more ash and water are used per cubic meter of concrete, and the shrinkage increases. 3. Improper selection of concrete admixtures and admixtures, or improper dosage, seriously increases the shrinkage of concrete. 4. Due to the type of cement, the shrinkage of slag silicate cement is greater than that of ordinary silicate cement, the shrinkage values ​​of fly ash and alumina cement are smaller, and the shrinkage of rapid hardening cement is large. 5. Due to cement grade and concrete strength grade: the higher the cement grade, the finer the fineness, and the higher the early strength, the greater the influence on concrete cracking. The higher the concrete design strength grade, the greater the concrete brittleness and the easier it is to crack.

[0008] (III) Reasons for concrete mix design

[0009] 1. Improper selection of cement grade or type in the design; 2. The water-cement ratio (water-binder ratio) in the mix ratio is too large; 3. The greater the amount of cement used per cubic meter and the higher the water consumption, the larger the volume of cement slurry, the greater the slump, and the greater the shrinkage; 4. Improper selection of sand ratio and water-cement ratio in the mix design causes deviation in the workability of concrete, resulting in concrete segregation, water seepage, poor water retention, and increased shrinkage; 5. Improper selection of the amount of concrete expansion agent in the mix design.

[0010] It is necessary to detect and repair the cracks to meet the use effect of precast concrete components and ensure their effective sales, but there is a lack of effective assembly-line detection and repair.

[0011] After searching, it is found that a Chinese patent document discloses a prefabricated concrete component crack detection device [Application number: CN202022271833.5; Announcement number: CN212808163U]. This detection device includes a detection platform, the top four corners of the detection platform are fixed with brackets, the top of the bracket is provided with a lifting slot, and the lifting slot is provided with a lifting rod inside, wherein the bottom of the lifting rod is provided with an adjustment slot, the internal thread of the adjustment slot is connected with an adjustment screw, the top of the lifting rod is fixed with a top frame, the bottom of the top frame is longitudinally slidably connected with a sliding seat, the bottom of the sliding seat is laterally slidably connected with an ultrasonic detection head, and the detection platform is provided with a gear slot near the bracket. Although this crack detection device is convenient for detecting prefabricated concrete components, the detection method is single, which is not conducive to comprehensive detection of cracks in prefabricated concrete components. At the same time, it lacks repair and sorting functions, which is not conducive to rapid repair of cracks in prefabricated concrete components.

[0012] Based on this, we propose a crack detection, prevention and repair device for precast concrete components in construction projects. It has high efficiency through assembly line detection, repair and sorting. The depth and width of the cracks can be effectively detected through the cooperation of the visual detection mechanism and the ultrasonic detection mechanism. The glue injection mechanism and the roller glue mechanism cooperate to repair the cracks stably and efficiently. Summary of the invention

[0013] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a crack detection, prevention and repair device for precast concrete components in construction projects. The technical problem to be solved by the invention is: how to achieve stable, effective and rapid crack detection, prevention and repair and rapid sorting of precast concrete components in an assembly line manner.

[0014] The purpose of the present invention can be achieved by the following technical solutions:

[0015] A crack detection, prevention and repair device for precast concrete components in construction projects comprises an external main control computer and a visual detection mechanism, an ultrasonic detection mechanism, a drilling mechanism, a conveying roller machine and a sorting mechanism which are arranged in sequence. The conveying roller machine is provided with a drying mechanism, the drying mechanism comprises a dust hood and a hot air hood, the dust hood and the hot air hood are arranged on the upper part of the conveying roller machine, a glue injection mechanism and a glue roller mechanism are arranged in sequence on the upper part of the conveying roller machine, the dust hood is located at the front side of the glue injection mechanism, the hot air hood is located at the rear side of the glue roller mechanism, and a circulating dust suction mechanism is provided on the drilling mechanism.

[0016] The working principle of the present invention is as follows: the glue injection mechanism and the glue roller mechanism are used for external adhesive glue, and each electrical component is electrically connected to an external main control computer. The precast concrete component is placed on the visual detection mechanism, and crack detection is performed through the visual detection mechanism to detect the crack width on the upper surface of the precast concrete component, and the detection data is transmitted to the main control computer. The precast concrete component is then subjected to crack detection through the ultrasonic detection mechanism to detect the crack depth on the upper and lower surfaces of the precast concrete component, and the detection data is transmitted to the main control computer. The main control computer performs data analysis and divides it into products that are easy to repair and products that do not need to be repaired. Products that have been repaired or do not need to be repaired are directly finished products; products that need to be repaired on both sides are recycled products and are subjected to cyclic turning processing; products that are difficult to repair and waste products are not repaired and are manually processed to obtain the glue injection routes of products that are easy to repair and recycled products. If the cracks are deep and need to be drilled, the concrete The precast concrete components are transported to the drilling mechanism, which drills holes in the cracks (dust is removed while drilling), and then the drilled precast concrete components are transported to the conveyor roller machine. The dust hood performs negative pressure dust removal on the drilled precast concrete components. The glue injection mechanism injects glue through the glue injection route and the glue injection hole. After glue injection, the glue roller mechanism cooperates to roll glue on the crack surface of the precast concrete component. If the crack is small, only glue rolling is required, and the glue roller mechanism is used for separate glue rolling. After the glue rolling is completed, the adhesive is heated and dried by the hot air hood. The main control computer analyzes the cracks and divides them into easy-to-repair products and those that do not need to be repaired. Products that have been repaired or do not need to be repaired are directly finished products; products that need to be repaired on both sides are recycled products, which are subjected to cyclic turning processing; products that are difficult to repair and waste products are not repaired and are manually processed, and the main control computer controls the sorting mechanism for sorting.

[0017] The visual detection mechanism includes a visual conveyor belt and a visual mounting bracket. The visual conveyor belt passes through the visual mounting bracket. A fixing plate is provided on the visual mounting bracket. A plurality of first visual cameras are provided at the lower end of the fixing plate. A mounting arc frame is provided on the visual conveyor belt. A second visual camera is provided on the mounting arc frame.

[0018] With the above structure, the precast concrete components are placed on the visual conveyor belt for transportation. Several first visual cameras perform a primary crack detection on the precast concrete components, and the second visual cameras perform a secondary crack detection on the precast concrete components to detect the crack width on the upper surface of the precast concrete components, and transmit the detection data to the main control computer.

[0019] The ultrasonic detection mechanism includes an ultrasonic conveying frame and an ultrasonic mounting frame. The ultrasonic conveying frame runs through the ultrasonic mounting frame. A plurality of ultrasonic conveying belts are arranged inside the ultrasonic conveying frame. A tensioner is arranged between the ultrasonic conveying belts and the ultrasonic conveying frame. A base frame is arranged at the lower end of the ultrasonic mounting frame. The base frame is located below the ultrasonic conveying frame. A plurality of ultrasonic detectors are arranged on both sides of the ultrasonic mounting frame and the base frame. The ultrasonic detectors on both sides are cross-distributed.

[0020] With the above structure, the ultrasonic conveyor belt conveys the precast concrete components, and the ultrasonic detectors on both sides detect cracks in the precast concrete components, detect the crack depths on the upper and lower surfaces of the precast concrete components, and transmit the detection data to the main control computer.

[0021] The drilling mechanism includes a fixed frame, an installation box and a drilling conveyor belt are provided on the fixed frame, the installation box is located below the drilling conveyor belt, an air guide port is provided between the fixed frame and the drilling conveyor belt, a wind shield is detachably provided on the fixed frame, a linear slide is fixed on the fixed frame, a slide rod is slidably provided on the linear slide, a cross frame is provided between the two slide rods, a cross screw rod is provided on the cross frame, a cross slide is provided on the cross screw rod, a vertical screw rod is provided on the cross slide, a vertical slide is provided on the vertical screw rod, a drilling rig is fixed on the vertical slide, and a circulating dust suction mechanism includes a dust collecting box, a dust suction fan and an air guide box which are sequentially arranged inside the installation box, the dust collecting box and the air guide box are respectively connected with the air guide port, and the air inlet end and the air outlet end of the dust suction fan are respectively connected with the dust collecting box and the air guide box.

[0022] With the above structure, the transverse screw drives the transverse slide to move transversely, the transverse slide drives the vertical screw to move transversely, and the vertical screw drives the vertical slide to move vertically, thereby driving the drilling rig to move transversely and vertically. The drilling rig drills holes in the precast concrete components, which is helpful for glue injection. When drilling, the dust suction fan starts, and the air guide port on one side sucks air, and the dust particles are sucked into the dust collecting box from the air guide port for collection and treatment. The dust suction fan discharges air at the other end, and blows the air out from the air guide port on the other side onto the precast concrete components, forming a cycle of dust suction. The wind shield is used to block dust to ensure that dust particles enter the air guide port and avoid dust particles splashing.

[0023] The conveying roller machine includes mounting vertical plates, between which a number of equally spaced conveying rollers are rotatably arranged, a driving shaft is rotatably arranged on the outer side of the mounting vertical plates, a bevel gear pair is arranged between the driving shaft and the rotating shafts of a number of the conveying rollers, a conveying motor is arranged on the mounting vertical plates, and an output shaft of the conveying motor is transmission-connected to the driving shaft at a corresponding position.

[0024] With the above structure, the output shaft of the conveying motor drives the driving shaft at the corresponding position to rotate, and the driving shaft drives the rotating shafts of several conveying rollers to rotate through the bevel gear pair, that is, drives several conveying rollers to rotate, for conveying precast concrete components.

[0025] The drying mechanism also includes a heating box, a drying fan, a dust collection box and a mounting rod. The air inlet and air outlet of the drying fan are respectively connected to the dust collection box and the heating box. The mounting rod and the hot air hood are fixed above the mounting vertical plate. The dust collection hood is detachably slidably arranged on the mounting rod. The dust collection box is connected to the dust collection hood through a pipeline, and the heating box is connected to the hot air hood through a pipeline.

[0026] With the above structure, the position of the dust hood on the mounting rod is adjusted so that the height of the dust hood is located above the precast concrete component. The drying fan is started, and the drying fan sucks the dust on the precast concrete component into the dust hood under negative pressure, and then sucks it into the dust collecting box through the pipe. The clean air then enters the heating box through the air outlet end of the drying fan to form hot air. The hot air enters the hot air hood through the pipe and blows on the precast concrete component to dry the adhesive thereon.

[0027] The glue injection mechanism includes two fixed plates, which are fixed on the upper ends of the mounting vertical plates. A transverse slide rail and a transverse screw rod are provided between the two fixed plates. The transverse screw rod is provided with a vertical slide rail, and the vertical slide rail is slidably arranged on the transverse slide rail. A vertical screw rod is provided on the front side of the vertical slide rail. A mounting slide seat is provided on the vertical screw rod, and the mounting slide seat is slidably arranged on the vertical slide rail. A fixed seat is fixed on the mounting slide, and a glue injection valve rod is fixed on the fixed seat.

[0028] With the above structure, the transverse screw drives the vertical slide rail to move horizontally on the transverse slide rail, and the vertical screw drives the installation slide to slide vertically on the vertical slide rail, thereby driving the injection valve stem to move, and cooperating with the conveying roller machine, the injection valve stem moves along the crack. While moving, the injection valve stem injects the adhesive into the crack.

[0029] The rubber roller mechanism comprises two lifting adjustment rods, which are fixed on the upper ends of the mounting vertical plates, and a U-shaped frame is fixed on the upper ends of the two lifting adjustment rods, and a brush roller is rotatably provided at the lower end of the U-shaped frame. Two symmetrical mounting screw blocks are provided at both ends of the U-shaped frame, and an adjusting screw is screwed on the mounting screw block. A sliding bearing seat is rotatably provided at the end of the adjusting screw, and the sliding bearing seat is slidably arranged on the U-shaped frame. A rubber outlet roller is rotatably provided between the two sliding bearing seats at corresponding positions, and the brush roller is located directly below the middle of the two rubber outlet rollers. A rubber roller motor is fixed on the U-shaped frame, and a pulley pair is provided between the output shaft of the rubber roller motor and the rotating shafts of the brush roller and the rubber outlet roller. Two rubber guide plates are fixed on the U-shaped frame, and the two rubber guide plates are located above the rubber outlet roller, and the two rubber guide plates are V-shaped.

[0030] With the above structure, two lifting adjustment rods are adjusted according to the height of the precast concrete component, so that the brush roller can contact the precast concrete component, and the glue output amount of the adhesive is adjusted according to demand, that is, the adjusting screw is adjusted, and the adjusting screw drives the sliding bearing seat to slide on the U-shaped frame, so as to adjust the distance between the two adhesive rollers, and the adhesive is introduced into the position between the two adhesive rollers through the two adhesive guide plates. The output shaft of the roller glue motor drives the brush roller and the rotating shaft of the adhesive roller to rotate through the pulley pair, and the adhesive flows from the gap between the two adhesive rollers to the brush roller, and the brush roller brushes the adhesive roller onto the precast concrete component.

[0031] The sorting mechanism includes a main discharging conveyor belt, two sorting conveyor belts are arranged on one side of the main discharging conveyor belt, and two vertical frames are arranged on the other side of the main discharging conveyor belt. The vertical frames are directly opposite to the positions of the sorting conveyor belts at corresponding positions. A hydraulic cylinder is fixed on the upper end of the vertical frame, and a sorting push plate is arranged at the telescopic end of the hydraulic cylinder.

[0032] With the above structure, products that are easy to repair and do not need to be repaired are directly discharged through the main discharging conveyor belt; products that need to be repaired on both sides are circulating products. When passing through the first hydraulic cylinder, the telescopic end of the hydraulic cylinder extends out to push out the sorting push plate, and the sorting push plate pushes the precast concrete components onto the first sorting conveyor belt for static placement and cyclic flipping treatment, and then is pulled to the visual inspection mechanism for glue repair on the other side. Products that are difficult to repair and waste do not need to be repaired. When passing through the second hydraulic cylinder, the telescopic end of the hydraulic cylinder extends out to push out the sorting push plate, and the sorting push plate pushes the precast concrete components onto the second sorting conveyor belt for manual processing, such as manual waste or manual repair.

[0033] Compared with the prior art, the crack detection, prevention and repair device for precast concrete components in construction engineering has the following advantages:

[0034] Through the cooperation of visual detection mechanism and ultrasonic detection mechanism, the width and depth of cracks in precast concrete components can be effectively detected, and the injection position and amount can be obtained by cooperating with the external main control computer;

[0035] The drilling mechanism and the circulating dust suction mechanism cooperate to realize rapid drilling and effective dust suction of precast concrete components, ensure stable glue injection, avoid dust particles from splashing, and be more environmentally friendly.

[0036] Through the cooperation of the roller glue mechanism, the glue injection mechanism and the conveying roller machine, the cracks of the precast concrete components can be filled with roller glue or glue injection, or the roller glue and glue injection can be used in combination to ensure that the glue is injected deep into the gaps. The roller glue is comprehensive and simple, which can meet the requirements of efficient and stable crack repair.

[0037] The drying mechanism cooperates with the conveying roller to realize secondary dust collection and efficient hot air drying, and the efficiency of glue injection and drying is high and the effect is good;

[0038] The visual inspection mechanism, ultrasonic inspection mechanism and sorting mechanism cooperate with the external main control computer to sort the finished products, turned over and re-injected products and manually processed products, and the sorting is efficient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a front view structural schematic diagram of the present invention.

[0040] Figure 2 It is a three-dimensional structural schematic diagram of the present invention.

[0041] Figure 3 It is a three-dimensional structural schematic diagram of the visual detection mechanism in the present invention.

[0042] Figure 4 It is a three-dimensional structural schematic diagram of the ultrasonic detection mechanism in the present invention.

[0043] Figure 5 It is a three-dimensional structural schematic diagram of the drilling mechanism in the present invention.

[0044] Figure 6 It is a side structural schematic diagram of the drilling mechanism in the present invention.

[0045] Figure 7 It is a three-dimensional structural schematic diagram of the drying mechanism and the conveying roller machine in the present invention.

[0046] Figure 8 It is a three-dimensional structural schematic diagram of the glue injection mechanism in the present invention.

[0047] Fig. 9 It is a three-dimensional structural schematic diagram of the roller glue mechanism in the present invention.

[0048] Fig.10 It is a three-dimensional structural schematic diagram of the sorting mechanism in the present invention.

[0049] Fig.11 It is a flowchart of the working principle of the present invention.

[0050] In the figure, 1, visual inspection mechanism; 2, ultrasonic inspection mechanism; 3, drilling mechanism; 4, conveying roller machine; 5, sorting mechanism; 6, drying mechanism; 7, roller glue mechanism; 8, glue injection mechanism; 9, visual conveyor belt; 10, visual mounting bracket; 11, fixing plate; 12, first visual camera; 13, mounting arc bracket; 14, second visual camera; 15, ultrasonic conveyor bracket; 16, ultrasonic conveyor belt; 17, ultrasonic mounting bracket; 18, ultrasonic detector; 19, base frame; 20, tensioner; 21, fixing bracket; 22, mounting box; 23, drilling conveyor belt; 24, air guide port; 25, linear slide; 26, slide rod; 27, cross frame; 28, vertical screw rod; 29, horizontal screw rod; 30, drilling machine; 31, wind shield Plate; 32, conveying roller; 33, driving shaft; 34, mounting plate; 35, bevel gear pair; 36, heating box; 37, drying fan; 38, dust box; 39, mounting rod; 40, dust hood; 41, hot air hood; 42, fixed plate; 43, horizontal slide rail; 44, horizontal screw rod; 45, vertical slide rail; 46, vertical screw rod; 47, mounting slide seat; 48, fixed seat; 49, injection valve rod; 50, lifting adjustment rod; 51, brush roller; 52, U-shaped frame; 53, adjusting screw; 54, mounting screw block; 55, sliding bearing seat; 56, glue discharge roller; 57, glue guide plate; 58, pulley pair; 59, main discharge conveyor belt; 60, sorting conveyor belt; 61, vertical frame; 62, hydraulic cylinder; 63, sorting push plate. DETAILED DESCRIPTION

[0051] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0052] like Figure 1-Figure 11 As shown, the crack detection, prevention and repair device for precast concrete components of the construction project comprises an external main control computer and a visual detection mechanism 1, an ultrasonic detection mechanism 2, a drilling mechanism 3, a conveying roller machine 4 and a sorting mechanism 5 which are arranged in sequence. The conveying roller machine 4 is provided with a drying mechanism 6, and the drying mechanism 6 comprises a dust hood 40 and a hot air hood 41, which are arranged on the upper part of the conveying roller machine 4. The upper part of the conveying roller machine 4 is provided with a glue injection mechanism 8 and a glue roller mechanism 7 in sequence, the dust hood 40 is located at the front side of the glue injection mechanism 8, the hot air hood 41 is located at the rear side of the glue roller mechanism 7, and the drilling mechanism 3 is provided with a circulating dust suction mechanism;

[0053] The glue injection mechanism 8 and the glue roller mechanism 7 are used for external adhesive bonding. Each electrical component is electrically connected to an external main control computer (which is an existing device with a control program inside). The precast concrete component is placed on the visual inspection mechanism 1, and crack detection is performed through the visual inspection mechanism 1 to detect the crack width on the upper surface of the precast concrete component, and the detection data is transmitted to the main control computer. The precast concrete component is then subjected to crack detection through the ultrasonic inspection mechanism 2 to detect the crack depth on the upper and lower surfaces of the precast concrete component, and the detection data is transmitted to the main control computer. The main control computer performs data analysis and divides it into products that are easy to repair and products that do not need to be repaired. Products that have been repaired or do not need to be repaired are directly finished products; products that need to be repaired on both sides are recycled products, which are subjected to cyclic turning processing; products that are difficult to repair and waste products are not repaired and are manually processed to obtain the injection routes of products that are easy to repair and recycled products. If the cracks are deep and need to be drilled, the mixed products are The precast concrete components are transported to the drilling mechanism 3, which drills holes in the cracks (dust is removed while drilling), and then the drilled precast concrete components are transported to the conveying roller 4. The dust hood 40 performs negative pressure dust removal on the drilled precast concrete components. The glue injection mechanism 8 injects glue through the glue injection route and the glue injection hole. After the glue injection, the glue rolling mechanism 7 cooperates to roll glue on the crack surface of the precast concrete components. If the crack is small, only glue rolling is required, and the glue rolling mechanism 7 is used to roll glue separately. After the glue rolling is completed, the adhesive is heated and dried by the hot air hood 41. The main control computer analyzes the cracks and divides them into easy-to-repair products and products that do not need to be repaired. Products that have been repaired or do not need to be repaired are directly finished products; products that need to be repaired on both sides are recycled products, which are recycled and turned over; products that are difficult to repair and waste products are not repaired and are manually processed. The main control computer controls the sorting mechanism 5 to sort them.

[0054] The visual inspection mechanism 1 includes a visual conveyor belt 9 and a visual mounting bracket 10. The visual conveyor belt 9 passes through the visual mounting bracket 10. The visual mounting bracket 10 is provided with a fixing plate 11. The lower end of the fixing plate 11 is provided with a plurality of first visual cameras 12. The visual conveyor belt 9 is provided with a mounting arc frame 13. The mounting arc frame 13 is provided with a second visual camera 14.

[0055] The precast concrete components are placed on the visual conveyor belt 9 for transportation. A plurality of first visual cameras 12 perform a primary crack detection on the precast concrete components, and a second visual camera 14 performs a secondary crack detection on the precast concrete components, detects the crack width on the upper surface of the precast concrete components, and transmits the detection data to the main control computer.

[0056] The ultrasonic detection mechanism 2 includes an ultrasonic conveying frame 15 and an ultrasonic mounting frame 17. The ultrasonic conveying frame 15 runs through the ultrasonic mounting frame 17. A plurality of ultrasonic conveying belts 16 are arranged inside the ultrasonic conveying frame 15. A tensioner 20 is arranged between the ultrasonic conveying belts 16 and the ultrasonic conveying frame 15. A bottom frame 19 is arranged at the lower end of the ultrasonic mounting frame 17. The bottom frame 19 is located below the ultrasonic conveying frame 15. A plurality of ultrasonic detectors 18 are arranged on both sides of the ultrasonic mounting frame 17 and the bottom frame 19. The ultrasonic detectors 18 on both sides are cross-distributed.

[0057] The ultrasonic conveyor belt 16 conveys the precast concrete components, and the ultrasonic detectors 18 on both sides detect cracks in the precast concrete components, detect the crack depths on the upper and lower surfaces of the precast concrete components, and transmit the detection data to the main control computer.

[0058] The drilling mechanism 3 includes a fixed frame 21, on which a mounting box 22 and a drilling conveyor belt 23 are provided. The mounting box 22 is located below the drilling conveyor belt 23, and an air guide port 24 is provided between the fixed frame 21 and the drilling conveyor belt 23. A wind deflector 31 is detachably provided on the fixed frame 21. A linear slide 25 is fixed on the fixed frame 21, and a slide rod 26 is slidably provided on the linear slide 25. A cross frame 27 is provided between the two slide rods 26, and a cross screw 29 is provided on the cross frame 27. A cross slide is provided on the cross screw 29, and a vertical screw 28 is provided on the cross slide. A vertical slide is provided on the vertical screw 28, and a drilling rig 30 is fixed on the vertical slide. The circulating dust collection mechanism includes a dust collecting box, a dust suction fan and an air guide box which are sequentially arranged inside the mounting box 22, and the dust collecting box and the air guide box are respectively connected to the air guide port 24, and the air inlet end and the air outlet end of the dust suction fan are respectively connected to the dust collecting box and the air guide box;

[0059] The transverse screw 29 drives the transverse slide to move transversely, the transverse slide drives the vertical screw 28 to move transversely, and the vertical screw 28 drives the vertical slide to move vertically, thereby driving the drilling rig 30 to move transversely and vertically. The drilling rig 30 drills holes in the precast concrete components, which is helpful for glue injection. When drilling, the dust suction fan is started, and the air guide port 24 on one side sucks air, and the dust particles are sucked into the dust collecting box from the air guide port 24 for collection and processing. The dust suction fan discharges air at the other end, and blows the air out from the air guide port 24 on the other side and blows it onto the precast concrete components, forming a cycle of dust suction. The wind shield 31 is used to block dust, ensure that dust particles enter the air guide port 24, and avoid dust particles from splashing.

[0060] The conveying roller machine 4 includes a mounting plate 34, between which a plurality of equally spaced conveying rollers 32 are rotatably arranged, a driving shaft 33 is rotatably arranged on the outer side of the mounting plate 34, a bevel gear pair 35 is arranged between the driving shaft 33 and the rotating shafts of a plurality of conveying rollers 32, a conveying motor is arranged on the mounting plate 34, and an output shaft of the conveying motor is transmission-connected to the driving shaft 33 at a corresponding position;

[0061] The output shaft of the conveying motor drives the driving shaft 33 at the corresponding position to rotate, and the driving shaft 33 drives the rotating shafts of several conveying rollers 32 to rotate through the bevel gear pair 35, that is, drives several conveying rollers 32 to rotate, so as to convey the precast concrete components;

[0062] The drying mechanism 6 further includes a heating box 36, a drying fan 37, a dust box 38 and a mounting rod 39. The air inlet and air outlet of the drying fan 37 are respectively connected to the dust box 38 and the heating box 36. The mounting rod 39 and the hot air hood 41 are fixed above the mounting vertical plate 34. The dust hood 40 is detachably slidably arranged on the mounting rod 39. The dust box 38 is connected to the dust hood 40 through a pipeline, and the heating box 36 is connected to the hot air hood 41 through a pipeline.

[0063] The position of the dust hood 40 on the mounting rod 39 is adjusted so that the height of the dust hood 40 is located above the precast concrete component. The drying fan 37 is started, and the drying fan 37 sucks the dust on the precast concrete component into the dust hood 40 under negative pressure, and then sucks it into the dust collecting box 38 through a pipe. The clean air then enters the heating box 36 through the air outlet end of the drying fan 37 to form hot air. The hot air enters the hot air hood 41 through the pipe and blows on the precast concrete component to dry the adhesive thereon.

[0064] The glue injection mechanism 8 includes two fixed plates 42, which are fixed to the upper end of the mounting plate 34, and a transverse slide rail 43 and a transverse screw rod 44 are provided between the two fixed plates 42. A vertical slide rail 45 is provided on the transverse screw rod 44, and the vertical slide rail 45 is slidably arranged on the transverse slide rail 43. A vertical screw rod 46 is provided on the front side of the vertical slide rail 45, and a mounting slide seat 47 is provided on the vertical screw rod 46. The mounting slide seat 47 is slidably arranged on the vertical slide rail 45, and a fixed seat 48 is fixed on the mounting slide seat 47, and a glue injection valve rod 49 is fixed on the fixed seat 48;

[0065] The transverse screw rod 44 drives the vertical slide rail 45 to move horizontally on the transverse slide rail 43, and the vertical screw rod 46 drives the mounting slide 47 to slide vertically on the vertical slide rail 45, thereby driving the glue injection valve stem 49 to move, and cooperate with the conveying roller machine 4 to make the glue injection valve stem 49 move along the crack. At the same time, the glue injection valve stem 49 injects the adhesive into the crack.

[0066] The glue roller mechanism 7 includes two lifting adjustment rods 50, which are fixed on the upper ends of the mounting vertical plates 34. A U-shaped frame 52 is fixed on the upper ends of the two lifting adjustment rods 50. A brush roller 51 is rotatably provided at the lower end of the U-shaped frame 52. Two symmetrical mounting screw blocks 54 are provided at both ends of the U-shaped frame 52. An adjusting screw 53 is screwed on the mounting screw block 54. A sliding bearing seat 55 is rotatably provided at the end of the adjusting screw 53. The sliding bearing seat 55 is slidably provided on the U-shaped frame 52. A glue outlet roller 56 is rotatably provided between the two sliding bearing seats 55 at corresponding positions. The brush roller 51 is located directly below the middle of the two glue outlet rollers 56. A glue roller motor is fixed on the U-shaped frame 52. A pulley pair 58 is provided between the output shaft of the glue roller motor and the rotating shafts of the brush roller 51 and the glue outlet roller 56. Two glue guide plates 57 are fixed on the U-shaped frame 52. The two glue guide plates 57 are located above the glue outlet roller 56, and the two glue guide plates 57 are V-shaped.

[0067] According to the height of the precast concrete component, the two lifting adjustment rods 50 are adjusted so that the brush roller 51 can contact the precast concrete component. The glue output amount of the adhesive is adjusted according to the demand, that is, the adjusting screw 53 is adjusted. The adjusting screw 53 drives the sliding bearing seat 55 to slide on the U-shaped frame 52, so as to adjust the distance between the two adhesive rollers 56. The adhesive passes through the two adhesive guide plates 57 and is introduced into the position between the two adhesive rollers 56. The output shaft of the roller glue motor drives the brush roller 51 and the rotating shaft of the adhesive roller 56 to rotate through the pulley pair 58. The adhesive flows down from the gap between the two adhesive rollers 56 and flows onto the brush roller 51. The two adhesive rollers 56 rotate in opposite directions, and the brush roller 51 brushes the adhesive roller onto the precast concrete component.

[0068] The sorting mechanism 5 comprises a main discharging conveyor belt 59, two sorting conveyor belts 60 are arranged on one side of the main discharging conveyor belt 59, and two vertical frames 61 are arranged on the other side of the main discharging conveyor belt 59. The vertical frames 61 are directly opposite to the positions of the sorting conveyor belts 60 at corresponding positions. A hydraulic cylinder 62 is fixed on the upper end of the vertical frame 61, and a sorting push plate 63 is arranged at the telescopic end of the hydraulic cylinder 62.

[0069] Products that are easy to repair and do not need to be repaired are directly discharged through the main discharge conveyor belt 59; products that need to be repaired on both sides are circulating products. When passing through the first hydraulic cylinder 62, the telescopic end of the hydraulic cylinder 62 extends out to push out the sorting push plate 63, and the sorting push plate 63 pushes the precast concrete components onto the first sorting conveyor belt 60 for static and cyclic turning treatment, and then is pulled to the visual inspection mechanism 1 for glue repair on the other side. Products that are difficult to repair and waste do not need glue repair. When passing through the second hydraulic cylinder 62, the telescopic end of the hydraulic cylinder 62 extends out to push out the sorting push plate 63, and the sorting push plate 63 pushes the precast concrete components onto the second sorting conveyor belt 60 for manual processing, such as manual waste or manual repair.

[0070] Working principle of the present invention:

[0071] The glue injection mechanism 8 and the glue roller mechanism 7 are used for external adhesive bonding. Each electrical component is electrically connected to an external main control computer. The precast concrete components are placed on the visual conveyor belt 9 for conveying. A plurality of first visual cameras 12 perform a primary crack detection on the precast concrete components. The second visual camera 14 performs a secondary crack detection on the precast concrete components, detects the crack width on the upper surface of the precast concrete components, and transmits the detection data to the main control computer.

[0072] The ultrasonic conveyor belt 16 conveys the precast concrete components, and the ultrasonic detectors 18 on both sides detect cracks in the precast concrete components, detect the crack depths on the upper and lower surfaces of the precast concrete components, and transmit the detection data to the main control computer;

[0073] The main control computer analyzes the data and divides them into easy-to-repair products and products that do not need to be refilled. Products that have been refilled or do not need to be refilled are directly finished products; products that need to be refilled on both sides are recycled products and are recycle-turned; products that are difficult to refill and waste products are not refilled and are manually processed;

[0074] For easy-to-replenish products and circulating products, a glue injection route is obtained. If the crack is deep and needs to be drilled, the precast concrete component is transported to the drilling mechanism 3, and the transverse screw 29 drives the transverse slide to move transversely, and the transverse slide drives the vertical screw 28 to move transversely, and the vertical screw 28 drives the vertical slide to move vertically, thereby driving the drilling rig 30 to move transversely and vertically. The drilling rig 30 drills holes in the precast concrete component, which is helpful for glue injection. When drilling, the dust suction fan is started, and the air guide port 24 on one side sucks air, and the dust particles are sucked into the dust collecting box from the air guide port 24 for collection and treatment. The dust suction fan discharges air at the other end, and blows the air out from the air guide port 24 on the other side and blows it on the precast concrete component to form a cycle of dust suction. The wind shield 31 is used to block dust, ensure that dust particles enter the air guide port 24, and avoid dust particles from splashing;

[0075] The drilled precast concrete components are then transported to the conveying roller machine 4. The output shaft of the conveying motor drives the driving shaft 33 at the corresponding position to rotate. The driving shaft 33 drives the rotating shafts of several conveying rollers 32 to rotate through the bevel gear pair 35, that is, drives several conveying rollers 32 to rotate to transport the precast concrete components.

[0076] The position of the dust hood 40 on the mounting rod 39 is adjusted so that the height of the dust hood 40 is located above the precast concrete component, and the drying fan 37 is started. The drying fan 37 sucks the dust on the precast concrete component into the dust hood 40 under negative pressure, and then sucks it into the dust box 38 through the pipeline;

[0077] The lateral screw rod 44 drives the vertical slide rail 45 to move horizontally on the lateral slide rail 43, and the vertical screw rod 46 drives the mounting slide seat 47 to slide vertically on the vertical slide rail 45, thereby driving the injection valve rod 49 to move, and cooperate with the conveying roller machine 4, so that the injection valve rod 49 moves along the crack. While moving, the injection valve rod 49 injects the adhesive into the crack. After the injection, according to the height of the precast concrete component, the two lifting adjustment rods 50 are adjusted so that the brush roller 51 can contact the precast concrete component according to the needs. The glue output amount of the adhesive is adjusted, that is, the adjusting screw 53 is adjusted. The adjusting screw 53 drives the sliding bearing seat 55 to slide on the U-shaped frame 52, so as to adjust the distance between the two adhesive output rollers 56. The adhesive passes through the two adhesive guide plates 57 and is introduced into the position between the two adhesive output rollers 56. The output shaft of the adhesive roller motor drives the brush roller 51 and the rotating shaft of the adhesive output roller 56 to rotate through the pulley pair 58. The adhesive flows down from the gap between the two adhesive output rollers 56 and flows onto the brush roller 51. The brush roller 51 brushes the adhesive roller onto the concrete precast component.

[0078] If the cracks detected are small, only glue rolling is required, and the glue rolling mechanism 7 is used to roll glue separately. After the glue rolling is completed, the clean air enters the heating box 36 from the air outlet of the drying fan 37 to form hot air. The hot air enters the hot air hood 41 through the pipeline and blows on the precast concrete components to dry the adhesive thereon.

[0079] The main control computer controls the sorting mechanism 5 to perform sorting. Products that are easy to repair and do not need to be repaired are directly discharged through the main discharge conveyor belt 59. Products that need to be repaired on both sides are circulating products. When passing through the first hydraulic cylinder 62, the telescopic end of the hydraulic cylinder 62 extends out to push out the sorting push plate 63. The sorting push plate 63 pushes the precast concrete components onto the first sorting conveyor belt 60 for static placement and cyclic flipping treatment, and then pulls them to the visual inspection mechanism 1 to repair the glue on the other side. After the glue is repaired again, they are generally treated as easy-to-repair products and discharged from the main discharge conveyor belt 59; products that are difficult to repair and waste products do not need to be repaired. When passing through the second hydraulic cylinder 62, the telescopic end of the hydraulic cylinder 62 extends out to push out the sorting push plate 63. The sorting push plate 63 pushes the precast concrete components onto the second sorting conveyor belt 60 for manual processing, such as manual waste or manual repair.

[0080] In summary, through the cooperation of the visual detection mechanism 1 and the ultrasonic detection mechanism 2, the width and depth of the cracks of the precast concrete components can be effectively detected, and the injection position and amount of glue can be obtained by cooperating with the external main control computer; through the cooperation of the drilling mechanism 3 and the circulating dust suction mechanism, the precast concrete components can be quickly drilled and effectively dusted, ensuring stable glue injection, avoiding dust particles from splashing, and being more environmentally friendly; through the cooperation of the roller glue mechanism 7 and the injection mechanism 8 and the conveying roller 4, the cracks of the precast concrete components can be rolled with glue or injected, or the roller glue and injection can be used in combination to ensure that the glue is injected deep into the gap, and the roller glue is comprehensive and simple, which can meet the requirements of efficient and stable crack repair; through the cooperation of the drying mechanism 6 and the conveying roller 4, secondary dust suction and efficient hot air drying are realized, and the efficiency of glue injection and drying is high and the effect is good; through the cooperation of the visual detection mechanism 1 and the ultrasonic detection mechanism 2 and the sorting mechanism 5, and in cooperation with the external main control computer, the finished products, the turned-over secondary injection products and the manually processed products are sorted, and the sorting is efficient and fast.

[0081] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A crack detection, prevention and repair device for precast concrete components in construction engineering, characterized in that: The invention comprises an external main control computer and a visual inspection mechanism (1), an ultrasonic inspection mechanism (2), a drilling mechanism (3), a conveying roller machine (4) and a sorting mechanism (5) which are arranged in sequence. The conveying roller machine (4) is provided with a drying mechanism (6). The drying mechanism (6) comprises a dust hood (40) and a hot air hood (41). The dust hood (40) and the hot air hood (41) are arranged on the upper part of the conveying roller machine (4). The upper part of the conveying roller machine (4) is provided with a glue injection mechanism (8) and a glue roller mechanism (7) in sequence. The dust hood (40) is located in front of the glue injection mechanism (8). The hot air hood (41) is located on the front side of the glue roller mechanism (7). ), a circulating dust collection mechanism is provided on the drilling mechanism (3); the ultrasonic detection mechanism (2) comprises an ultrasonic conveying frame (15) and an ultrasonic mounting frame (17); the ultrasonic conveying frame (15) penetrates the ultrasonic mounting frame (17); a plurality of ultrasonic conveying belts (16) are provided inside the ultrasonic conveying frame (15); a tensioner (20) is provided between the ultrasonic conveying belts (16) and the ultrasonic conveying frame (15); a bottom frame (19) is provided at the lower end of the ultrasonic mounting frame (17); the bottom frame (19) is located below the ultrasonic conveying frame (15); a plurality of ultrasonic detection devices are provided on both sides of the ultrasonic mounting frame (17) and the bottom frame (19); The conveying roller machine (4) comprises a mounting plate (34), a plurality of equally spaced conveying rollers (32) are rotatably arranged between the mounting plates (34), a driving shaft (33) is rotatably arranged outside the mounting plates (34), a bevel gear pair (35) is arranged between the driving shaft (33) and the rotating shafts of the plurality of conveying rollers (32), a conveying motor is arranged on the mounting plates (34), and an output shaft of the conveying motor is transmission-connected to the driving shaft (33) at a corresponding position; the glue injection mechanism (8) comprises two fixing plates (42), two A fixed plate (42) is fixed to the upper end of the mounting vertical plate (34); a transverse slide rail (43) and a transverse screw rod (44) are provided between the two fixed plates (42); a vertical slide rail (45) is provided on the transverse screw rod (44); the vertical slide rail (45) is slidably arranged on the transverse slide rail (43); a vertical screw rod (46) is provided on the front side of the vertical slide rail (45); a mounting slide seat (47) is provided on the vertical screw rod (46); the mounting slide seat (47) is slidably arranged on the vertical slide rail (45); a fixed seat (48) is fixed on the mounting slide seat (47); and a glue injection valve rod (49) is fixed on the fixed seat (48);The roller glue mechanism (7) comprises two lifting adjustment rods (50), the two lifting adjustment rods (50) are fixed to the upper ends of the mounting vertical plate (34), a U-shaped frame (52) is fixed to the upper ends of the two lifting adjustment rods (50), a brush roller (51) is rotatably provided at the lower end of the U-shaped frame (52), two symmetrical mounting screw blocks (54) are provided at both ends of the U-shaped frame (52), an adjusting screw rod (53) is screwed on the mounting screw block (54), a sliding bearing seat (55) is rotatably provided at the end of the adjusting screw rod (53), and the sliding bearing seat (55) slides The U-shaped frame (52) is rotatably mounted on the two sliding bearing seats (55) at corresponding positions, and a rubber outlet roller (56) is rotatably mounted between the two sliding bearing seats (55). The brush roller (51) is located directly below the middle of the two rubber outlet rollers (56). A rubber roller motor is fixed on the U-shaped frame (52). A pulley pair (58) is provided between the output shaft of the rubber roller motor and the rotating shafts of the brush roller (51) and the rubber outlet roller (56). Two rubber guide plates (57) are fixed on the U-shaped frame (52). The two rubber guide plates (57) are located above the rubber outlet roller (56), and the two rubber guide plates (57) are V-shaped. ; 2. A crack detection, prevention and repair device for precast concrete components in construction engineering according to claim 1, characterized in that: The visual inspection mechanism (1) comprises a visual conveyor belt (9) and a visual mounting bracket (10), the visual conveyor belt (9) passes through the visual mounting bracket (10), a fixing plate (11) is provided on the visual mounting bracket (10), a plurality of first visual cameras (12) are provided at the lower end of the fixing plate (11), a mounting arc frame (13) is provided on the visual conveyor belt (9), and a second visual camera (14) is provided on the mounting arc frame (13).

3. A crack detection, prevention and repair device for precast concrete components in construction engineering according to claim 2, characterized in that: The drilling mechanism (3) comprises a fixed frame (21), a mounting box (22) and a drilling conveyor belt (23) are provided on the fixed frame (21), the mounting box (22) is located below the drilling conveyor belt (23), an air guide port (24) is provided between the fixed frame (21) and the drilling conveyor belt (23), a wind shield (31) is detachably provided on the fixed frame (21), a linear slide (25) is fixed on the fixed frame (21), a slide rod (26) is slidably provided on the linear slide (25), and a slide rod (26) is provided between the two slide rods (26). A horizontal frame (27) is provided in the middle, a horizontal screw rod (29) is provided on the horizontal frame (27), a horizontal slide is provided on the horizontal screw rod (29), a vertical screw rod (28) is provided on the horizontal slide, a vertical slide is provided on the vertical screw rod (28), a drilling machine (30) is fixed on the vertical slide, and the circulating dust collection mechanism comprises a dust collecting box, a dust collecting fan and an air guide box which are sequentially arranged inside the installation box (22), the dust collecting box and the air guide box are respectively connected to the air guide port (24), and the air inlet end and the air outlet end of the dust collecting fan are respectively connected to the dust collecting box and the air guide box.

4. A crack detection, prevention and repair device for precast concrete components in construction engineering according to claim 3, characterized in that: The drying mechanism (6) further comprises a heating box (36), a drying fan (37), a dust collecting box (38) and a mounting rod (39); an air inlet end and an air outlet end of the drying fan (37) are respectively connected to the dust collecting box (38) and the heating box (36); the mounting rod (39) and the hot air hood (41) are fixed above the mounting vertical plate (34); the dust collecting hood (40) is detachably slidably arranged on the mounting rod (39); the dust collecting box (38) and the dust collecting hood (40) are connected via a pipeline; and the heating box (36) and the hot air hood (41) are connected via a pipeline.

5. A crack detection, prevention and repair device for precast concrete components in construction engineering according to claim 4, characterized in that: The sorting mechanism (5) comprises a main discharge conveyor belt (59), two sorting conveyor belts (60) are arranged on one side of the main discharge conveyor belt (59), and two vertical frames (61) are arranged on the other side of the main discharge conveyor belt (59), the vertical frames (61) are directly opposite to the positions of the sorting conveyor belts (60) at corresponding positions, a hydraulic cylinder (62) is fixed to the upper end of the vertical frame (61), and a sorting push plate (63) is arranged at the telescopic end of the hydraulic cylinder (62).

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