A highway pavement anti-collapse crack detection and filling device

Abstract

The application relates to a highway pavement anti-collapse crack detection and filling device and relates to the technical field of pavement construction.The device comprises a carrying vehicle, a crack tester arranged on the carrying vehicle, a stand column vertically connected to the carrying vehicle, a rotating seat rotatably connected to the stand column, a drilling assembly arranged on the stand column and comprising a vertically downward drilling head and a drilling snap ring detachably connected to the rotating seat, the height difference between the drilling head and the drilling snap ring being fixed, a filling assembly arranged on the carrying vehicle and comprising a pouring gun slidingly arranged on the stand column and a filling snap ring detachably connected to the rotating seat, the height difference between the pouring gun and the filling snap ring being fixed, the gun mouth vertically downward, and the pouring gun being used for pouring foaming crack filling agent to the lower part of the pavement, and a lifting assembly arranged on the stand column and used for lifting the drilling assembly or the pouring gun above the drilling point position. The application has the effects of reducing damage to the original pavement and shortening the repair time.

Description

Technical Field

[0001] This application relates to the technical field of road construction, and in particular to a device for detecting and filling cracks in highway pavement to prevent collapse. Background Technology

[0002] Cracks are the most common type of road surface damage. If there are cavities beneath these cracks, the road may collapse, causing traffic accidents. There are many reasons why cavities may appear beneath road surfaces. For example, damaged underground pipelines may break due to long-term use, corrosion, or construction quality issues, leading to leaks that erode the surrounding soil and create cavities. Deep foundation pit construction and tunnel boring operations can also disturb the soil, causing soil loss and creating cavities. Groundwater erosion and long-term geological movements can also enlarge fissures, eventually forming cavities or loosening the soil. In urban areas, the impact of heavy machinery and vehicles causes long-term vibrations to the surface, and the continuously declining groundwater level reduces the pressure in underground fissures and pores, leading to the expansion of deep voids or fissures and ultimately creating cavities beneath the road surface.

[0003] When a cavity is discovered, the crack in the road surface needs to be broken up, the cavity filled, and then asphalt concrete re-poured. However, this method of cavity repair causes significant damage to the original road surface and takes a long time due to maintenance requirements. Summary of the Invention

[0004] In order to reduce damage to the original road surface and shorten the repair time, this application provides a highway pavement anti-collapse crack detection and filling device.

[0005] The technical solution of the highway pavement anti-collapse crack detection and filling device provided in this application is as follows:

[0006] A device for detecting and filling cracks in highway pavement to prevent collapse, comprising:

[0007] Transport vehicle;

[0008] Crack testing equipment is mounted on the transport vehicle;

[0009] The pillars are vertically connected to the transport vehicle;

[0010] The rotating base is rotatably connected to the column.

[0011] A drilling assembly, mounted on a column, includes a vertically downward-facing drill bit and a drilling retainer that is detachably connected to a rotating base. The height difference between the drill bit and the drilling retainer is fixed.

[0012] The filling assembly, installed on the transport vehicle, includes a filling gun that is slidably mounted on a column and a filling retainer that is detachably connected to a rotating seat. The height difference between the filling gun and the filling retainer is fixed and the nozzle is vertically downward, used to inject foamed sealant into the road surface.

[0013] The lifting assembly, mounted on the column, is used to lift the drilling assembly or injection gun located above the drilling point.

[0014] The distance between the drill bit's central axis and the column's central axis, and the distance between the injection gun's central axis and the column's central axis, are equal. The rotating seat is used to drive the drill bit and injection gun to rotate and change position along the column's circumference.

[0015] By adopting the above technical solution, when a road surface crack is discovered, the transport vehicle is moved to the crack location, and a crack tester is used to detect whether there are cavities beneath the road surface. If cavities are found, the transport vehicle is moved until the drill bit is aligned with the road surface above the cavity, the drilling assembly is lowered to drill a hole in the road surface to connect with the cavity, the drill bit is raised, the rotating seat is rotated to align the injection gun with the drilled hole, and the injection gun is lowered so that the nozzle of the injection gun enters the hole to inject foamed sealant. The foamed sealant expands and fills the cavity. Compared with manual demolition and repair of cavities, this method reduces damage to the original road surface and shortens the repair time.

[0016] Optionally, a bearing ring is fixedly connected to the circumferential side wall of the column, and the bearing ring is provided with a lifting notch. The rotating seat, drilling clasp, and filling clasp are spliced ​​into a complete ring and rotatably connected to the bearing ring. The lifting notch is used for the drilling clasp or filling clasp to move up and down. The lifting assembly includes a lifting support plate that can be lifted and lowered in the lifting notch. The lifting support plate is used to lift and lower the drilling clasp or filling clasp.

[0017] By adopting the above technical solution, the rotating seat, drilling clasp, and filling clasp can all rotate on the bearing ring, which provides support. When the drilling clasp or filling clasp rotates to the lifting notch, it loses the support of the bearing ring and connects with the lifting support plate. The lifting of the drilling clasp or filling clasp can be achieved by lifting the lifting support plate, thereby achieving the lifting of the drill bit and the injection gun.

[0018] Optionally, the lifting assembly further includes:

[0019] The lifting motor is mounted on the column.

[0020] The lifting screw is rotatably connected inside the column and threadedly connected to the lifting support plate. One end is connected to the output shaft of the lifting motor.

[0021] By adopting the above technical solution, the lifting motor drives the lifting screw to rotate, and the lifting support plate can be lifted and lowered to realize the lifting control of the drill bit or injection gun.

[0022] Optionally, the drilling assembly further includes:

[0023] First mounting bracket, connecting the drilling retainer;

[0024] The drilling rig is connected to the first mounting bracket, and the drill bit is rotatably connected to the bottom end.

[0025] By adopting the above technical solution, the first mounting frame enables the drilling rig, drill bit, and drill shackle to rise and fall synchronously.

[0026] Optionally, the filling component further includes:

[0027] The second mounting bracket connects the filling retainer and the injection gun;

[0028] The spraying machine is mounted on a transport vehicle and connected to the injection gun via pipes;

[0029] The raw material bin, located on the transport vehicle, is used to supply raw materials to the spraying machine.

[0030] By adopting the above technical solution, the spraying machine sucks out the raw material from the raw material box, and the raw material is pumped into the injection gun and sprayed into the cavity from the nozzle of the injection gun. Then it quickly foams, and the cavity can be filled and repaired after the foaming is completed.

[0031] Optionally, the detection filling device also includes a stabilizing component, which includes:

[0032] Guide rod, used to fix and connect the drilling assembly;

[0033] The sliding plate is a fixed connecting guide rod that is slidably connected to the column.

[0034] By adopting the above technical solution, the guide rod and slide can increase the stability of the drilling assembly during lifting and lowering, reduce shaking and vibration, and improve drilling accuracy.

[0035] Optionally, the inner wall of the slide is provided with a slider, the column is provided with an annular groove for the slider to slide along the circumference of the column, and the column is also provided with a lifting groove that connects to the groove for the slider to slide vertically.

[0036] By adopting the above technical solution, when the slider rotates to align with the lifting groove, the slider can disengage from the support of the groove wall and move down along the lifting groove, ensuring the normal lifting and lowering of the drilling assembly.

[0037] Optionally, a set of stabilizing components is also provided between the column and the injection gun, and the sliding plates of the two sets of stabilizing components are spliced ​​together to form a complete ring.

[0038] By adopting the above technical solution, when the injection gun moves above the drilling position, the corresponding sliding plate can also move down stably under the guidance of the lifting groove, improving the moving accuracy of the injection gun and accurately inserting the nozzle into the hole at the drilling position.

[0039] Optionally, the transport vehicle is equipped with a vertically penetrating working window for the drill bit or injection gun to pass through.

[0040] By adopting the above technical solution, the working window allows the operator to easily observe the position of the drill bit, so as to move the transport vehicle to align the drill bit with the top of the cavity and improve the drilling position accuracy.

[0041] Optionally, the transport vehicle is also equipped with multiple sets of support components, which include:

[0042] Ear plates, used for fixed connection to the transport vehicle;

[0043] Support screw, threaded connection lug;

[0044] The foot plate is fixedly connected to the bottom end of the support screw;

[0045] The handwheel is connected to the top of the support screw.

[0046] By adopting the above technical solution, turning the handwheel allows the footboard to be supported on the road surface, lifting the transport vehicle and making it less prone to shaking, thus making it more stable during drilling and grouting.

[0047] In summary, this application includes at least one of the following beneficial technical effects:

[0048] 1. When a road surface crack is discovered, move the transport vehicle to the crack and use a crack tester to check if there are any cavities beneath the road surface. If cavities are found, move the transport vehicle until the drill bit is aligned with the road surface above the cavity. Lower the drilling assembly to drill a hole in the road surface to connect with the cavity. Raise the drill bit, rotate the rotating seat to align the injection gun with the drilled hole, and lower the injection gun so that the nozzle of the injection gun enters the hole. Then, inject the foamed sealant. The foamed sealant will expand and fill the cavity. Compared with manual demolition and repair of cavities, this method reduces the damage to the original road surface and shortens the repair time.

[0049] 2. The rotating seat, drilling shackle, and filling shackle can all rotate on the bearing ring, which provides support. When the drilling shackle or filling shackle rotates to the lifting notch, it loses the support of the bearing ring and connects to the lifting support plate. The lifting of the lifting support plate can realize the lifting of the drilling shackle or filling shackle, thereby realizing the lifting of the drill bit and the injection gun.

[0050] 3. The spraying machine sucks out the raw material from the raw material tank. The raw material is pumped into the injection gun and sprayed out from the nozzle of the injection gun into the cavity. Then it quickly foams. After the foaming is completed, the cavity can be filled and repaired.

[0051] 4. The working window allows the operator to easily observe the position of the drill bit, so that the transport vehicle can be moved to align the drill bit with the top of the hole, thus improving the drilling position accuracy. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0053] Figure 2 This is a partial cross-sectional structural diagram of an embodiment of this application;

[0054] Figure 3 This is a partial exploded view of an embodiment of this application;

[0055] In the diagram, 1. Transport vehicle; 11. Working window; 12. Support assembly; 121. Ear plate; 122. Support screw; 123. Foot plate; 124. Handwheel; 2. Crack tester; 3. Column; 31. Bearing ring; 32. Lifting notch; 33. Slide groove; 34. Lifting groove; 4. Rotating seat; 41. Gear ring; 42. Gear; 43. Rotating motor; 5. Drilling assembly; 51. Drill bit; 52. Drilling shackle; 53. First mounting bracket; 54. Drilling rig; 6. Filling assembly; 61. Injection gun; 62. Filling shackle; 63. Second mounting bracket; 64. Sprayer; 65. Material box; 7. Lifting assembly; 71. Lifting support plate; 72. Lifting motor; 73. Lifting screw; 8. Battery; 91. Guide rod; 92. Sliding plate; 921. Sliding block. Detailed Implementation

[0056] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail below.

[0057] This application proposes a device for detecting and filling cracks in highway pavement to prevent collapse, referring to... Figure 1 and Figure 2 The system includes a transport vehicle 1, a crack tester 2, a column 3, a rotating base 4, a drilling assembly 5, a filling assembly 6, a lifting assembly 7, a battery 8, and a stabilizing assembly. The crack tester 2 is mounted on the transport vehicle 1 and is used to detect cracks in the road surface. The column 3 is connected to the top of the transport vehicle 1. The rotating base 4 is rotatably connected to the column 3. The drilling assembly 5 is mounted on the column 3 and includes a drill bit 51. The filling assembly 6 is mounted on the transport vehicle 1 and includes a filling gun 61 slidably mounted on the column 3. The lifting assembly 7 is mounted on the column 3 and is used to raise and lower the drill bit 51 and the filling gun 61. The battery 8 supplies power to all electrical components. The stabilizing assembly stabilizes the raising, lowering, and rotating of the drilling assembly 5 and the filling assembly 6.

[0058] When a road surface crack is discovered, the transport vehicle 1 is moved to the crack location, and a crack tester 2 is used to check for cavities beneath the road surface. If a cavity is found, the transport vehicle 1 is moved until the drill bit 51 is aligned with the road surface above the cavity, and the drilling assembly 5 is lowered to drill a hole in the road surface connecting to the cavity. After drilling is completed, the drill bit 51 is raised, and the rotating base 4 is rotated to align the injection gun 61 with the drilled hole. The injection gun 61 is then lowered so that its nozzle enters the hole, and foamed sealant is injected. The foamed sealant expands and fills the cavity. After curing, the repair work is complete. Compared to manually breaking and repairing cavities, this application can reduce damage to the original road surface and shorten the repair time.

[0059] The transport vehicle 1 is a flatbed trolley with a push handle at one end and a vertically penetrating working window 11 at the other end for the drill bit 51 and the injection gun 61 to pass through. The transport vehicle 1 has four casters on its underside for easy movement. The transport vehicle 1 is rectangular, with a set of support components 12 at each of its four corners. Each support component 12 includes a lug plate 121, a support screw 122, a foot plate 123, and a handwheel 124. The lug plates 121 are welded to the four corners of the transport vehicle 1, and the support screw 122 is threaded to and passes through the lug plates 121. The foot plate 123 is a circular plate welded to the bottom of the support screw 122, directly contacting the ground. The handwheel 124 is coaxially connected to the top of the support screw 122 for easy operation by the operator. After the transport vehicle 1 is moved to the designated position, the position of the transport vehicle 1 can be stably fixed by turning the handwheel 124 to lift up the four sets of support components 12.

[0060] Crack tester 2 is installed on the transport vehicle 1, located on one side of the working window 11, and is used to detect cracks in the road surface. After analyzing the results, the condition of the voids under the road surface can be determined, so as to accurately fill them.

[0061] The column 3 is vertically mounted on the transport vehicle 1. The main body is tubular, with a rectangular plate welded to the top and a flange at the bottom that is bolted to the transport vehicle 1. A bearing ring 31 is integrally formed on the circumferential side wall of the column 3, and the bearing ring 31 has a lifting notch 32.

[0062] The rotating base 4 is rotatably connected to the column 3 near its top end, and its bottom end is provided with two C-shaped arc plates that are rotatably connected to the bearing ring 31. A gear ring 41 is provided on the circumferential side wall of the top end of the rotating base 4, and a rotating motor 43 is provided on the rectangular plate at the top end of the column 3. The output shaft of the rotating motor 43 passes downward through the rectangular plate and is keyed to a gear 42. The gear 42 meshes with the gear ring 41. The rotation of the rotating base 4 is achieved by rotating the rotating motor 43.

[0063] The lifting assembly 7 includes a lifting support plate 71, a lifting motor 72, and a lifting screw 73. The lifting screw 73 is coaxially rotatably connected inside the column 3. The lifting motor 72 is mounted on a rectangular plate at the top of the column 3, and its output shaft is keyed to the lifting screw 73 to drive its rotation. The lifting support plate 71 is a circular plate and is threadedly connected to the lifting screw 73. One end of the circumferential sidewall of the lifting support plate 71 protrudes and extends through the circumferential sidewall of the column 3, and the column 3 has a vertical opening for the lifting support plate 71 to move up and down.

[0064] Reference Figure 2 and Figure 3 The drilling assembly 5 includes a drill bit 51, a drilling shackle 52, a first mounting bracket 53, and a drilling rig 54. The longitudinal section of the drilling shackle 52 is the same as the arc plate section at the bottom of the rotating seat 4, and it is rotatably connected to the bearing ring 31. The first mounting bracket 53 is fixedly connected to the drilling shackle 52. The drilling rig 54 is bolted to the first mounting bracket 53, and the bottom end is rotatably connected to the drill bit 51, which is vertically downward and used to drill injection holes in the road surface above the cavity. When the lifting support plate 71 is at its highest point, the part of the lifting support plate 71 that protrudes from the column 3 is located in the lifting notch 32. When the drilling shackle rotates to the lifting notch 32, the lifting support plate 71 can engage with the drilling shackle. When the lifting support plate 71 rises and falls, the drilling shackle moves synchronously, thereby realizing the rise and fall of the drill bit 51.

[0065] Reference Figure 1 and Figure 3 The filling component 6 includes an injection gun 61, a filling retaining ring 62, a second mounting bracket 63, a sprayer 64, and a material box 65. The sprayer 64 and the material box 65 are mounted on the transport vehicle 1 and are used to manufacture the foamed sealant. The filling retaining ring 62 has the same structure as the drilling retaining ring 52 and is positioned opposite to it. The filling retaining ring 62, the drilling retaining ring 52, and the rotating seat 4 can be assembled into a complete rotating body. When the rotating seat 4 rotates 180 degrees, the positions of the drilling retaining ring 52 and the filling retaining ring 62 can be interchanged. The second mounting bracket 63 is welded to the filling retaining ring 62, and the injection gun 61 is mounted on the second mounting bracket 63 with its nozzle pointing vertically downwards. In this embodiment, the foamed sealant used is polyurethane material, which has a fast curing speed and high supporting strength. The distance between the centerline of the injection gun 61 and the centerline of the column 3 is equal to the distance between the centerline of the drill bit 51 and the centerline of the column 3, so that after the drill bit 51 drills out of the injection hole, the rotating seat 4 can rotate 180 degrees to align the injection gun 61 with the position of the injection hole.

[0066] Reference Figure 2 and Figure 3The stabilizing assembly consists of two sets, including guide rods 91 and sliding plates 92. The circumferential sidewall of the column 3 has an annular groove 33 and a vertical lifting groove 34. Two lifting grooves 34 are located on either side of the column 3 and communicate with the groove 33. The sliding plate 92 is an arc-shaped plate, and the sliding plates 92 of the two sets of stabilizing assemblies are joined together to form a complete annular ring fitted onto the column 3. Each end of the inner wall of the sliding plate 92 has a slider 921, which can slide within the groove 33. When the slider 921 is vertically aligned with the lifting groove 34, the sliding plate 92 can slide vertically. The guide rods 91 are welded to the outer sidewall of the sliding plate 92. One guide rod 91 is bolted to the drill rig 54, and the other guide rod 91 is sleeved with the injection gun 61, stabilizing the drill bit 51 or the injection gun 61 during lifting and lowering.

[0067] The implementation principle of this application embodiment is as follows: The transport vehicle 1 is moved to the crack, and a crack tester 2 is used to detect the location of the cavity beneath the road surface, marking the drilling location. The transport vehicle 1 is moved until the drill bit 51 is aligned with the road surface above the cavity, and the support assembly 12 is used to fix its position. The drilling assembly 5 is lowered to drill a hole in the road surface to connect with the cavity. After drilling is completed, the drill bit 51 is raised, the rotating base 4 is rotated 180 degrees, so that the injection gun 61 is aligned with the drilled hole. The injection gun 61 is lowered so that its nozzle enters the hole, and foamed sealant is injected. The foamed sealant expands and fills the cavity. After curing, the repair work is completed.

[0068] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for detecting and filling cracks in highway pavement to prevent collapse, characterized in that, include: Transport vehicle (1); Crack tester (2) is installed on transport vehicle (1); The column (3) is vertically connected to the transport vehicle (1); Rotary seat (4) is rotatably connected to column (3); The drilling assembly (5) is set on the column (3) and includes a vertically downward drill bit (51) and a drilling retainer (52) that is detachably connected to the rotating seat (4). The height difference between the drill bit (51) and the drilling retainer (52) is fixed, and the drill bit (51) and the drilling retainer (52) are fixedly connected. The filling component (6) is installed on the transport vehicle (1) and includes a filling gun (61) slidably installed on the column (3) and a filling retainer (62) detachably connected to the rotating seat (4). The height difference between the filling gun (61) and the filling retainer (62) is fixed, and the filling gun (61) is fixedly connected to the filling retainer (62). The nozzle of the filling gun (61) is vertically downward and is used to inject foamed sealant into the road surface. The lifting assembly (7) is mounted on the column (3) and is used to lift the drilling assembly (5) or the injection gun (61) located above the drilling point. The distance between the central axis of the drill bit (51) and the central axis of the column (3) and the distance between the central axis of the injection gun (61) and the central axis of the column (3) are equal. The rotating seat (4) is used to drive the drill bit (51) and the injection gun (61) to rotate and change position along the circumference of the column (3). A bearing ring (31) is fixedly connected to the circumferential side wall of the column (3). The bearing ring (31) is provided with a lifting notch (32). The rotating seat (4), the drilling clasp (52) and the filling clasp (62) are spliced ​​into a complete ring and rotatably connected to the bearing ring (31). The lifting notch (32) is used for the drilling clasp (52) or the filling clasp (62) to rise and fall through. The lifting assembly (7) includes a lifting support plate (71) that can be lifted and lowered in the lifting notch (32). The lifting support plate (71) is used for lifting and lowering the drilling clasp (52) or the filling clasp (62).

2. The highway pavement anti-collapse crack detection and filling device according to claim 1, characterized in that, The lifting assembly (7) also includes: The lifting motor (72) is installed on the column (3); The lifting screw (73) is rotatably connected inside the column (3) and threadedly connected to the lifting support plate (71). One end is connected to the output shaft of the lifting motor (72).

3. The highway pavement anti-collapse crack detection and filling device according to claim 1, characterized in that, The drilling assembly (5) also includes: First mounting bracket (53), connected to drilling retainer (52); The drilling rig (54) is connected to the first mounting bracket (53), and the bottom end is rotatably connected to the drill bit (51).

4. The highway pavement anti-collapse crack detection and filling device according to claim 1, characterized in that, The filling component (6) further includes: The second mounting bracket (63) connects the filling retainer (62) and the filling gun (61). A sprayer (64) is mounted on a transport vehicle (1) and connected to an injection gun (61) via a pipe. The raw material box (65) is set on the transport vehicle (1) and is used to supply raw materials to the spraying machine (64).

5. The highway pavement anti-collapse crack detection and filling device according to claim 1, characterized in that, It also includes stabilizing components, which include: Guide rod (91), fixedly connected to drilling assembly (5); The sliding plate (92) is fixedly connected to the guide rod (91) and slidably connected to the column (3).

6. The highway pavement anti-collapse crack detection and filling device according to claim 5, characterized in that, The inner wall of the slide plate (92) is provided with a slider (921), and the column (3) is provided with an annular groove (33) for the slider (921) to slide along the circumference of the column (3). The column (3) is also provided with a lifting groove (34) that connects the groove (33) and allows the slider (921) to slide vertically.

7. A highway pavement anti-collapse crack detection and filling device according to claim 6, characterized in that, The stabilizing component is also provided between the column (3) and the injection gun (61), and the sliding plates (92) of the two stabilizing components are spliced ​​together to form a complete ring.

8. The highway pavement anti-collapse crack detection and filling device according to claim 1, characterized in that, The transport vehicle (1) is provided with a vertically penetrating working window (11) for the drill bit (51) or the injection gun (61) to pass through.

9. A highway pavement anti-collapse crack detection and filling device according to claim 1, characterized in that, The transport vehicle (1) is also equipped with multiple sets of support components (12), the support components (12) including: Ear plate (121) is fixedly connected to the carrier vehicle (1); Support screw (122), threaded connection lug (121); The foot plate (123) is fixedly connected to the bottom end of the support screw (122); The handwheel (124) is connected to the top of the support screw (122).

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