Civil engineering crack detecting and repairing device

Abstract

The invention discloses a civil engineering crack detecting and repairing device, and belongs to the technical field of road construction, the civil engineering crack detecting and repairing device comprises a moving device, a crack width detector mounted on the front side of the moving device, a hopper arranged on the moving device, and a mixed discharging assembly arranged at the bottom of the hopper, and the moving device can drive the hopper to move linearly; a baffle is arranged in the middle of the hopper and divides the hopper into an asphalt storage cavity and an aggregate storage cavity, a first discharging hole and a second discharging hole which are communicated with the asphalt storage cavity and the aggregate storage cavity are formed in the bottom of the hopper respectively, and control valves are installed in the first discharging hole and the second discharging hole respectively. The crack width detector is used for measuring the civil engineering surface crack width L. According to the device, civil engineering cracks can be repaired in time after being detected, and the measurement and maintenance efficiency of the civil engineering cracks can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of road construction, and in particular relates to a civil engineering crack detection and repairing device. Background Art

[0002] Cracks in civil engineering refer to gaps that appear on the surface or inside of structural materials such as concrete and masonry. Cracks can be divided into many types according to their causes. According to the time when cracks appear, they can be divided into early cracks and late cracks. Early cracks are usually formed in the early stage of hardening after concrete pouring, mainly due to factors such as hydration heat and shrinkage of concrete. For example, after pouring large volumes of concrete, due to the release of a large amount of heat during cement hydration, the internal temperature rises rapidly, while the heat dissipation on the surface of the concrete is fast. The temperature difference between the inside and outside causes tensile stress in the concrete. When the tensile stress exceeds the tensile strength of the concrete, cracks will appear. In extreme cases, the concrete may collapse partially or even completely, causing serious traffic interruptions and casualties. Although there are some devices in the prior art that can detect cracks in civil engineering, they cannot repair the cracks in civil engineering in time according to the width of the detection. When repairing in the later stage, the degree of repair cannot be well matched with the detection width, resulting in low detection efficiency. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a civil engineering crack detection and repair device, which can promptly repair civil engineering cracks after detection, thereby improving the measurement and maintenance efficiency of civil engineering cracks.

[0004] In order to achieve the above object, the present invention provides the following technical solutions: The present invention discloses a crack detection and repair device for civil engineering, comprising a mobile device, a crack width detector installed on the front side of the mobile device, a hopper arranged on the mobile device, and a mixing and discharging assembly arranged at the bottom of the hopper, wherein the mobile device can drive the hopper to move linearly; a baffle is arranged in the middle of the hopper, and the baffle separates the hopper into an asphalt storage chamber and an aggregate storage chamber, and a first discharge hole and a second discharge hole are respectively opened at the bottom of the hopper to communicate with the asphalt storage chamber and the aggregate storage chamber, and a control valve is installed in each of the first discharge hole and the second discharge hole, and the crack width detector is used to measure the surface crack width L of the civil engineering, when L<a, only the first discharge hole is opened for asphalt to be discharged, when a<L<b, the first discharge hole and the second discharge hole are opened at the same time to discharge the material through the mixing and discharging assembly, and when b<L, the second discharge hole is opened first to discharge the material, and then the first discharge hole is opened to discharge the material. Wherein a and b are the upper threshold and lower threshold of the preset crack width, respectively.

[0005] The mixing and discharging assembly includes a plurality of rotating disks arranged in parallel and at intervals, a center rod connecting the rotating disks, a push rod group fixed between two adjacent rotating disks, a cam group cooperating with the push rod group, and a rotating drive device driving the cam group to rotate. The center rod rotates with the hopper, and a first through hole and a second through hole are axially opened on the rotating disk. The first through hole of each rotating disk is also provided with a first discharge pipe, and the second through hole of each rotating disk is also provided with a second discharge pipe. The rotating drive device drives the rotating disk to rotate through the cam group, so that the first discharge pipe and the second discharge pipe rotate around the center rod, so that they can be alternately connected with the first discharge hole and the second discharge hole to realize mixed discharge.

[0006] The beneficial effects of the present invention are: The invention discloses a civil engineering crack detection and repair device, wherein the aggregate is used to provide support and the asphalt is used as a bonding medium. When the width of the civil engineering crack is small, only the asphalt can be released to avoid the aggregate overflowing from the crack, and the crack can be filled well. When the crack is large, the crack can be filled with the aggregate first to avoid the waste of asphalt, thereby ensuring the strength and efficiency of crack repair on the basis of cost saving.

[0007] During mixing and discharging, the present invention arranges a hopper to cooperate with the mixing and discharging assembly, and the first discharging pipe and the second discharging pipe rotate around the center rod. When the first discharging pipe and the second discharging pipe are aligned with the first discharging hole and the second discharging hole respectively, the asphalt material and the aggregate can be fed at the same time. One discharging process realizes the construction of a section of asphalt material and a section of aggregate, and realizes the alternating construction configuration of the asphalt material and the aggregate. The mixing and discharging is realized by alternatingly connecting the first discharging hole and the second discharging hole, which ensures the quality of pavement construction and greatly improves the construction efficiency.

[0008] In the device of the present invention, when the first discharge pipe and the second discharge pipe are respectively offset from the first discharge hole and the second discharge hole, the material stops falling, which can just avoid the asphalt material section and aggregate section that have been constructed, avoiding repeated construction of materials and making the road smoother in the later stage.

[0009] In the device of the present invention, a moving device is provided to cooperate with the hopper, and the moving device can drive the hopper to move linearly, so that the hopper can discharge material along a straight line, while avoiding the problem of inaccurate feeding position caused by manual feeding, thereby improving the efficiency of road construction.

[0010] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration: Figure 1 The structure of the device of the present invention is shown in FIG. Figure 1 ; Figure 2 The structure of the device of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a structural schematic diagram of the mixing and discharging assembly of the present invention; Figure 4 It is a structural schematic diagram of the hopper of the present invention; Figure 5 It is a structural schematic diagram of the front wheel obstacle avoidance mechanism of the present invention.

[0012] The numbers in the accompanying drawings are as follows: moving device 1, hopper 2, mixing and discharging component 3, baffle 4, asphalt storage chamber 5, aggregate storage chamber 6, first discharge hole 7, second discharge hole 8, rotating disk 9, center rod 10, first through hole 11, second through hole 12, first discharge pipe 13, second discharge pipe 14, first push rod 15, second push rod 16, first cam 17, second cam 18, rotating shaft 19, first support seat 20, first bevel gear 21, second bevel gear 22, motor 23, boss 24, limit end plate 25, car body 26, transmission Dynamic shaft 27, rear wheel 28, side support device 29, roller 30, connecting shaft 31, L-shaped sliding bracket 32, guide rod 33, bottom plate 34, spring 35, fork rod 36, front wheel 37, disc 38, eccentric shaft 39, connecting rod 40, sliding rod 41, fixed support 42, sliding column 43, swing rod 44, slide groove 45, rotating support 46, outer shell 47, first gear 48, second gear 49, third gear 50, fourth gear 51, fifth gear 52, sixth gear 53, connecting shaft 54, crack width detector 55. DETAILED DESCRIPTION

[0013] like Figures 1 to 5As shown, a civil engineering crack detection and repair device of the present invention comprises a mobile device 1, a crack width detector 55 installed at the front side of the mobile device 1, a hopper 2 arranged on the mobile device 1, and a mixing and discharging assembly 3 arranged at the bottom of the hopper 2, wherein the mobile device 1 can drive the hopper 2 to move linearly; a baffle 4 is arranged in the middle of the hopper 2, and the baffle 4 divides the hopper 2 into an asphalt storage chamber 5 and an aggregate storage chamber 6, and a first discharge hole 7 and a second discharge hole 8 are respectively opened at the bottom of the hopper 2 to communicate with the asphalt storage chamber 5 and the aggregate storage chamber 6, and a control valve is installed in the first discharge hole 7 and the second discharge hole 8, and the crack width detector 55 is used to measure the surface crack width L of the civil engineering. When L<a, only the first discharge hole 7 is opened for asphalt discharge to avoid the aggregate overflowing from the crack due to the large aggregate, and when a<L<b, the first discharge hole 7 and the second discharge hole 8 are opened at the same time to discharge the material through the mixing and discharging assembly 3. Filling can be carried out smoothly. When b<L, first open the second discharge hole 8 to discharge the material, and then open the first discharge hole 7 to discharge the material. Theoretically, the moving device 1 can at least drive the hopper 2 to move linearly, and the mixing and discharging assembly 3 is used to discharge the material intermittently. The moving device 1 drives the hopper 2 to move linearly along the transverse direction of the road to ensure that the material on the hopper 2 can be discharged along the straight line of the road joint, and the discharge will not have a large curve.

[0014] A baffle 4 is provided in the middle of the hopper 2, which divides the inner cavity of the hopper 2 into an asphalt storage cavity 5 and an aggregate storage cavity 6. The front and rear order of the asphalt storage cavity 5 and the aggregate storage cavity 6 is the same as the extension direction of the joint, that is, they are arranged horizontally along the road. The bottom of the hopper 2 is respectively provided with a first discharge hole 7 and a second discharge hole 8 connected with the asphalt storage cavity 5 and the aggregate storage cavity 6. Under the action of gravity, the first discharge hole 7 is used for discharging asphalt, and the second discharge hole 8 is used for discharging aggregate. The aggregate here is crushed stone, which can be well combined with asphalt and can provide a better supporting effect.

[0015] Specifically, in the embodiment of the present invention, the mixing and discharging assembly 3 includes a plurality of rotating disks 9 arranged in parallel and at intervals, a center rod 10 connecting the rotating disks 9, a push rod group fixed between two adjacent rotating disks 9, a cam group coordinated with the push rod group, and a rotating drive device for driving the cam group to rotate. The structural size of each rotating disk 9 is exactly the same, and the interval distance between two adjacent rotating disks 9 is also the same. The center rod 10 is arranged vertically, and the center rod 10 rotates with the hopper 2 and is limited in the axial direction to avoid slipping out.

[0016] A first through hole 11 and a second through hole 12 are axially provided on the rotating disk 9, and the first through hole 11 and the second through hole 12 are fan-shaped. The discharge pipe avoids interference with the push rod. The first through holes 11 of each rotating disk 9 correspond to each other, and the second through holes 12 of each rotating disk 9 also correspond to each other. The first through holes 11 of each rotating disk 9 are also provided with a first discharge pipe 13, and the second through holes 12 of each rotating disk 9 are also provided with a second discharge pipe 14. The rotating drive device drives the rotating disk 9 to rotate through the cam group, so that the first discharge pipe 13 and the second discharge pipe 14 rotate around the center rod 10, so that they can be alternately connected with the first discharge hole 7 and the second discharge hole 8 to realize mixed discharge.

[0017] In this embodiment, the mixing and discharging assembly 3 includes three coaxially arranged rotating disks 9, the push rod group includes two first push rods 15 and two second push rods 16, the two ends of the two first push rods 15 are respectively fixedly connected to the two rotating disks 9 of the upper layer, the two first push rods 15 are centrally symmetrically arranged between the two rotating disks 9 of the upper layer with the center rod 10 as the center, the two ends of the two second push rods 16 are respectively fixedly connected to the two rotating disks 9 of the lower layer, the two second push rods 16 are centrally symmetrically arranged between the two rotating disks 9 of the lower layer with the center rod 10 as the center, and the plane where the two first push rods 15 are located is perpendicular to the plane where the two second push rods 16 are located; the cam group includes a first cam 17 and a second cam 18 respectively matched with the first push rod 15 and the second push rod 16, the first cam 17 and the second cam 18 are simultaneously connected to a rotating shaft 19, and the rotating shaft 19 is connected to the mobile device 1 through a first support seat 20. The device of the present invention can well realize mixed discharging through the cooperation of the cam group and the push rod group, and the discharging is more stable.

[0018] In this embodiment, the rotation driving device includes a first bevel gear 21, a second bevel gear 22, and a motor 23. The first bevel gear 21 is fixed to the lower end of the rotating shaft 19, the second bevel gear 22 is meshed with the first bevel gear 21, and the second bevel gear 22 is connected to the output shaft of the motor 23. The motor 23 drives the second bevel gear 22 to rotate through the output shaft, and the second bevel gear 22 drives the rotating shaft 19 to rotate through the first bevel gear 21. The overall structure is compact and can well control the rotation of the cam group.

[0019] In this embodiment, a boss 24 is integrally provided at the bottom center of the hopper 2. The upper end of the center rod 10 passes through the boss 24 and is connected to a limiting end plate 25. The center rod 10 and the boss 24 are rotatably matched. The axial direction of the center rod 10 is limited by the limiting end plate 25 to prevent the center rod 10 from falling out. Ball bearings can also be provided on the upper surfaces of the limiting end plate 25 and the boss 24 to reduce friction between the two.

[0020] In this embodiment, the mobile device 1 includes a vehicle body 26, a transmission shaft 27 rotatably connected to the vehicle body 26, and a rear wheel 28 matched with the transmission shaft 27. The transmission shaft 27 is simultaneously connected to the output shaft of the motor 23 through a first reduction gear set. In the device of the present invention, the first reduction gear set includes a first gear 48 coaxially connected to the transmission shaft 27, a second gear 49 meshing with the first gear 48, a third gear 50 meshing with the second gear 49, and a fourth gear 51 meshing with the third gear 50. The second gear 49 and the third gear 50 are simultaneously rotatably matched with the vehicle body 26, and the fourth gear 51 is coaxially connected to the output shaft of the motor 23. The device of the present invention can synchronously drive the transmission shaft 27 to achieve the movement of the vehicle body 26 by connecting the output shaft with the transmission shaft 27, so that the movement law of the vehicle body 26 can correspond well to the discharge law of the hopper 2, thereby improving the stability of the construction. A rotating support 46 for supporting the transmission shaft 27 is provided on the vehicle body 26.

[0021] In this embodiment, two sets of side support devices 29 are fixed at longitudinal intervals on the vehicle body 26. The side support devices 29 are used to support the side of the repaired civil engineering road surface to prevent the vehicle body 26 from being greatly offset when moving. Specifically, the side support device 29 includes a roller 30, a connecting shaft 31, an L-shaped sliding bracket 32, a guide rod 33, a bottom plate 34 and a spring 35. The roller 30 is rotatably connected to the connecting shaft 31. The connecting shaft 31 is vertically connected to the horizontal end of the L-shaped sliding bracket 32. The vertical end of the L-shaped sliding bracket 32 ​​is slidably set at one end of the guide rod 33. The other end of the guide rod 33 is fixedly connected to the bottom plate 34 at the bottom of the vehicle body 26. The two ends of the spring 35 are respectively connected to the bottom plate 34 and the L-shaped sliding bracket 32. Through the elastic support effect, the roller 30 is prevented from being greatly offset when encountering obstacles, and the stability of the movement of the vehicle body 26 can be ensured.

[0022] In this embodiment, a fork rod 36 is rotatably provided at the front end of the vehicle body 26, a front wheel 37 is provided at the bottom of the fork rod 36, and a front wheel obstacle avoidance mechanism is also provided on the vehicle body 26. The front wheel obstacle avoidance mechanism includes a second reduction gear set, a disc 38, an eccentric shaft 39, a connecting rod 40, a sliding rod 41, a fixed support 42, a sliding column 43, and a swing rod 44. A sliding channel for sliding cooperation of the sliding rod 41 is formed on the fixed support 42.

[0023] The transmission shaft 27 is connected to the disc 38 through the second reduction gear set. One end of the eccentric shaft 39 is eccentrically fixed to one end surface of the disc 38. The other end of the eccentric shaft 39 is hinged to one end of the connecting rod 40. The swing plane of the connecting rod 40 is perpendicular to the eccentric shaft 39. The other end of the connecting rod 40 is hinged to one end of the sliding rod 41. The middle part of the sliding rod 41 is slidably matched with the fixed support 42 fixed on the vehicle body 26. The sliding rod 41 can slide in the swing plane of the connecting rod 40, and its sliding direction is along the longitudinal direction, that is, the walking direction of the vehicle body 26. A sliding column 43 is fixed to the other end of the sliding rod 41. The sliding column 43 is fixed to the lower end of the sliding rod 41 and is arranged vertically. One end of the swing rod 44 is provided with a sliding groove 45 that cooperates with the sliding column 43. The sliding column 43 can slide in the sliding groove 45. The other end of the swing rod 44 is fixedly connected to the upper end of the fork rod 36. The second reduction gear set includes a fifth gear 52 coaxially connected to the transmission shaft 27, and a sixth gear 53 meshing with the fifth gear 52. A connecting shaft 31 is arranged at the center of the sixth gear 53. The connecting shaft 31 is mounted on the vehicle body 26 through a bearing seat, and the connecting shaft 31 is coaxially connected to the disc 38. When the transmission shaft 27 rotates, the sixth gear 53 is driven to rotate by the fifth gear 52, the sixth gear 53 drives the connecting shaft 31 to rotate, and the connecting shaft 31 drives the disc 38 to rotate. The eccentric rotation of the eccentric shaft 39 can act on the connecting rod 40, and the swing of the connecting rod 40 drives the sliding rod 41 to move. When the sliding rod 41 moves, it can drive the swing rod 44 to swing through the sliding column 43, so that the plug rod located in the center rotates, so that the front wheel 37 can have a certain rotation space, so that the front wheel 37 can deflect back and forth slightly when moving, so that it has a certain mobile obstacle avoidance effect, but under the positioning restriction of the two rear wheels 28, it will not have a large deflection angle, ensuring its linear displacement effect.

[0024] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A civil engineering crack detection and repair device, characterized in that: It includes a moving device, a crack width detector installed on the front side of the moving device, a hopper arranged on the moving device, and a mixing and discharging assembly arranged at the bottom of the hopper, wherein the moving device can drive the hopper to move linearly; a baffle is arranged in the middle of the hopper, and the baffle divides the hopper into an asphalt storage chamber and an aggregate storage chamber, and the bottom of the hopper is respectively provided with a first discharge hole and a second discharge hole connected to the asphalt storage chamber and the aggregate storage chamber, and control valves are installed in the first discharge hole and the second discharge hole, and the crack width detector is used to measure the surface crack width L of civil engineering. When L<a, only the first discharge hole is opened for asphalt discharge, when a<L<b, the first discharge hole and the second discharge hole are opened at the same time to discharge through the mixing and discharging assembly, and when b<L, the second discharge hole is opened first to discharge, and then the first discharge hole is opened to discharge, wherein a and b are the upper threshold and lower threshold of the preset crack width, respectively.

2. A civil engineering crack detection and repair device according to claim 1, characterized in that: The mixing and discharging assembly includes a plurality of rotating disks arranged in parallel and at intervals, a center rod connecting the rotating disks, a push rod group fixed between two adjacent rotating disks, a cam group cooperating with the push rod group, and a rotating drive device driving the cam group to rotate. The center rod rotates with the hopper, and a first through hole and a second through hole are axially opened on the rotating disk. The first through hole of each rotating disk is also provided with a first discharge pipe, and the second through hole of each rotating disk is also provided with a second discharge pipe. The rotating drive device drives the rotating disk to rotate through the cam group, so that the first discharge pipe and the second discharge pipe rotate around the center rod, so that they can be alternately connected with the first discharge hole and the second discharge hole to realize mixed discharge.

3. A civil engineering crack detection and repair device according to claim 2, characterized in that: The mixing and discharging assembly includes three coaxially arranged rotating disks, the push rod group includes two first push rods and two second push rods, the two ends of the two first push rods are respectively fixedly connected to the two rotating disks of the upper layer, the two ends of the two second push rods are respectively fixedly connected to the two rotating disks of the lower layer, and the plane where the two first push rods are located is perpendicular to the plane where the two second push rods are located; the cam group includes a first cam and a second cam respectively matched with the first push rod and the second push rod, the first cam and the second cam are simultaneously connected to a rotating shaft, and the rotating shaft is connected to the moving device through a first support seat.

4. A civil engineering crack detection and repair device according to claim 3, characterized in that: The rotation driving device includes a first bevel gear, a second bevel gear, and a motor. The first bevel gear is fixed to the lower end of the rotating shaft. The second bevel gear is meshed with the first bevel gear. The second bevel gear is connected to the output shaft of the motor. The motor is fixed on the moving device.

5. A civil engineering crack detection and repair device according to claim 4, characterized in that: A boss is integrally provided at the bottom center of the hopper, and the upper end of the center rod passes through the boss and is connected to a limited end plate, and the center rod is rotatably matched with the boss.

6. A civil engineering crack detection and repair device according to any one of claims 2 to 5, characterized in that: The mobile device includes a vehicle body, a transmission shaft rotatably connected to the vehicle body, and a rear wheel matched with the transmission shaft. The transmission shaft is simultaneously connected to an output shaft of a motor through a first reduction gear set.

7. A civil engineering crack detection and repair device according to claim 6, characterized in that: Two groups of side support devices are fixed at longitudinal intervals on the vehicle body, and the side support devices include rollers, connecting shafts, L-shaped sliding brackets, guide rods, base plates and springs. The rollers are rotatably connected to the connecting shafts, and the connecting shafts are vertically connected to the horizontal ends of the L-shaped sliding brackets. The vertical ends of the L-shaped sliding brackets are slidably arranged at one end of the guide rods, and the other end of the guide rods is fixedly connected to the base plates at the bottom of the vehicle body. The two ends of the springs are respectively connected to the base plates and the L-shaped sliding brackets.

8. A civil engineering crack detection and repair device according to claim 7, characterized in that: The front end of the vehicle body is rotatably provided with a fork rod, the bottom of the fork rod is provided with a front wheel, and the vehicle body is also provided with a front wheel obstacle avoidance mechanism, and the front wheel obstacle avoidance mechanism includes a second reduction gear group, a disc, an eccentric shaft, a connecting rod, a sliding rod, a fixed support, a sliding column, and a swing rod. The transmission shaft is connected to the disc through the second reduction gear group, one end of the eccentric shaft is eccentrically fixed to the disc, the other end of the eccentric shaft is hinged to one end of the connecting rod, the other end of the connecting rod is hinged to one end of the sliding rod, the middle part of the sliding rod is slidably matched with the fixed support fixed on the vehicle body, the other end of the sliding rod is fixed with a sliding column, one end of the swing rod is provided with a sliding groove matching the sliding column, and the other end of the swing rod is fixedly connected to the upper end of the fork rod.

9. A civil engineering crack detection and repair device according to claim 8, characterized in that: The vehicle body is provided with a rotating support for supporting the transmission shaft.

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