Bridge crack grouting repair device

Abstract

This application discloses a bridge crack shotcrete repair device, including a carrier equipped with a rotor mechanism; the carrier is equipped with a positioning mechanism connected to a shotcrete repair mechanism; the positioning mechanism includes two columns mounted on the carrier, with a first lifting beam and a second lifting beam movably connected to the columns; the first lifting beam is movably connected to a first automatic slider, which is equipped with a first probe rod, the end of which is connected to the shotcrete repair mechanism; the second lifting beam is movably connected to a second automatic slider, which is equipped with a second probe rod, the end of which is connected to the shotcrete repair mechanism. The beneficial effects of this solution, as described above, are its simple structure, reasonable design, and avoidance of workers being positioned on the side of the bridge for crack repair, eliminating the need for bulky bridge repair hoisting equipment; it also reduces the workload of workers and improves work efficiency.

Description

Technical Field

[0001] This invention relates to the field of bridge maintenance, and more particularly to a bridge crack spraying repair device. Background Technology

[0002] Once a concrete bridge develops severe cracks, external air and harmful media can easily penetrate into the concrete, producing carbonates through chemical reactions. This reduces the alkalinity of the reinforcing steel, and the surface protective film is damaged, making it more prone to corrosion. In addition, concrete carbonation exacerbates shrinkage cracking, seriously endangering the safe use of the concrete bridge. Cracks on the bridge deck are easy to repair, but cracks on the sides and bottom of the bridge are more difficult to repair. Currently, shotcrete repair of bridge side cracks is generally done manually, using specialized hoisting equipment to transport workers to the side of the bridge. After the workers arrive at the crack location, the shotcrete repair is carried out in the following steps: (1) First, long straight steel bars are placed on the crack; (2) Then, discs are attached to the steel bars and bonded to the side of the bridge; (3) Adhesive is then sprayed on both sides of the crack; (4) The steel bars are removed; (5) Slurry is injected into the crack through the holes left by the steel bars on the discs. This method of operation requires large equipment and requires the cooperation of hoisting vehicles and shotcrete workers; moreover, it is dangerous for shotcrete workers to climb up and down. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing a bridge crack spraying repair device that is simple in structure and reasonable in design. It avoids the need for workers to repair cracks on the side of the bridge, eliminates the need for large bridge repair hoisting equipment, reduces the workload of workers, improves work efficiency, avoids the danger of workers being suspended in the air and on large moving machinery, improves mobility by using drones for operation, and enhances intuitiveness by using cameras.

[0004] To achieve the above objectives, the present invention provides a bridge crack shotcrete repair device, including a carrier, wherein the carrier is provided with a rotor mechanism;

[0005] The vehicle is equipped with a positioning mechanism, which is connected to a shotcrete repair mechanism.

[0006] The positioning mechanism includes two columns installed on the vehicle, and the columns are movably connected to a first lifting beam and a second lifting beam;

[0007] The first lifting beam is movably connected to a first automatic slider, the first automatic slider is provided with a first probe, and the end of the first probe is connected to the shotcrete repair mechanism;

[0008] The second lifting beam is movably connected to a second automatic slider, the second automatic slider is equipped with a second probe, and the end of the second probe is connected to the shotcrete repair mechanism;

[0009] The shotcrete repair mechanism includes a first connecting block, which is disposed at the end of the first probe, and suction cups are provided at both ends of the first connecting block;

[0010] The shotcrete repair mechanism includes a second connecting block, which is disposed at the end of the second probe, and suction cups are provided at both ends of the second connecting block;

[0011] A long strip of pressing plate is provided between the first connecting block and the second connecting block, and a fiber layer is provided on the side of the pressing plate located at the opening of the suction cup;

[0012] A spray nozzle is provided in the middle section of the pressing plate, and an overflow head is provided at the upper end of the pressing plate;

[0013] The vehicle is equipped with a camera and a signal transceiver.

[0014] Furthermore, the carrier is provided with a seat groove, which is located above the carrier, and the horizontal notch of the seat groove faces the position of the shotcrete repair mechanism;

[0015] The column is disposed in the seat groove, and the top of the column is higher than the rotor mechanism.

[0016] Furthermore, the top of the column is provided with a horizontal bending section, and both ends of the horizontal bending section are provided with pulleys. The pulleys are connected to cables. One end of the cables is connected to the first lifting beam, and the other end of the cables is connected to a winch. The winch is located in the seat groove.

[0017] Furthermore, the suction cup is connected to a vent valve, and the vent valve is connected to an air pump.

[0018] Furthermore, the spray head penetrates the pressing plate, the spray head includes a spray nozzle located on one side of the fiber layer, and the spray head also includes a connection port located on the side of the pressing plate opposite to the fiber layer, the connection port being connected to a grouting pump.

[0019] Furthermore, the overflow head extends through the pressing plate, and the overflow head includes a connecting port located on one side of the fiber layer, and the overflow head also includes an overflow port located on the side of the pressing plate opposite to the fiber layer.

[0020] Furthermore, a positioning head is provided on the side of the spray nozzle, and the positioning head is at a height higher than the pressing plate than the spray nozzle;

[0021] The same positioning head is provided on the side of the connecting port, and the positioning head is at a higher height than the pressing plate than the connecting port.

[0022] A miniature camera and an LED light are positioned near the positioning head, and a protective shell is provided on the outside of the miniature camera and the LED light. The protective shell is made of transparent material.

[0023] The end of the positioning head is hemispherical, and the centerline of the positioning head, the centerline of the spray head, and the centerline of the overflow head are located in the same plane, and the longitudinal centerline of the pressing plate is also located in this plane.

[0024] Furthermore, the first lifting beam has elongated holes at both ends, and the long axis of the elongated holes is parallel to the longitudinal axis of the first lifting beam.

[0025] The first lifting beam is provided with weight-reducing holes, which are horizontally positioned.

[0026] Furthermore, a pair of rollers are provided at both ends of the second lifting beam, and the rollers are respectively located on both sides of the column;

[0027] The axis of the roller is perpendicular to the longitudinal axis of the second lifting beam;

[0028] The second lifting beam is provided with weight-reducing holes, which are horizontally positioned.

[0029] Furthermore, the column is a round rod, and the diameter of the column is smaller than the spacing between the rollers;

[0030] The roller has an arc-shaped groove on its surface, and the radius of the arc-shaped groove is larger than the radius of the column.

[0031] The vehicle is also equipped with a grouting pump and a grout storage tank.

[0032] During operation, workers maneuver the vehicle to the crack on the side of the bridge. Based on the crack's direction, they control the first and second automatic sliders, and a miniature camera guides the positioning head into the crack. Then, air is extracted from the suction cups, causing the suction cups at the end of the probe to adhere to both sides of the crack.

[0033] Under the suction of the suction cups, the pressing plate squeezes the fiber layer, sealing all cracks except for the grouting nozzle and the connecting opening. Grouting then begins through the nozzle. Grouting stops when the overflow port above the grouting head starts to overflow. Simultaneously, a miniature camera located at the positioning head provides direct observation of the grouting process at the nozzle and connecting opening.

[0034] The beneficial effects of this solution can be seen from the description above: it has a simple structure and reasonable design, avoids workers from repairing cracks on the side of the bridge, and eliminates the need for large bridge repair hoisting equipment; it reduces the workload of workers and improves work efficiency; it avoids the danger of workers being suspended in the air and on large moving machinery; it uses drones for aerial work, which improves mobility; and it uses cameras to improve intuitiveness. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the present invention;

[0036] Figure 2 for Figure 1 A bottom view;

[0037] Figure 3 for Figure 2 Sectional view A-A;

[0038] Figure 4 This is a schematic diagram of the first lifting beam structure of the present invention;

[0039] Figure 5 This is a schematic diagram of the second lifting beam structure of the present invention;

[0040] Figure 6 This is a schematic diagram of the shotcrete repair mechanism of the present invention;

[0041] Figure 7 for Figure 6 Left view;

[0042] In the diagram, 1. Carrier; 2. Rotor mechanism; 3. Positioning mechanism; 4. Shotcrete repair mechanism; 5. Column; 6. First lifting beam; 7. Second lifting beam; 8. First automatic slider; 9. First probe rod; 10. Roller; 11. Second automatic slider; 12. Second probe rod; 13. First connecting block; 14. Suction cup; 15. Second connecting block; 16. Pressing plate; 17. Fiber layer; 18. Shotcrete head; 19. Overflow head; 20. Pulley; 21. Air valve; 22. Shotcrete nozzle; 23. Connection port; 24. Connecting port; 25. Overflow port; 26. Positioning head; 27. Protective shell; 28. Elongated hole. Detailed Implementation

[0043] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0044] like Figure 1-7 As shown, this embodiment is a bridge crack shotcrete repair device, including a carrier 1, and the carrier 1 is equipped with a rotor mechanism 2;

[0045] The vehicle 1 is equipped with a positioning mechanism 3, and the positioning mechanism 3 is connected to a shotcrete repair mechanism 4;

[0046] The positioning mechanism 3 includes two columns 5 installed on the carrier 1, and the columns 5 are movably connected to a first lifting beam 6 and a second lifting beam 7;

[0047] The first lifting beam 6 is movably connected to the first automatic slider 8, the first automatic slider 8 is provided with the first probe 9, and the end of the first probe 9 is connected to the shotcrete repair mechanism 4;

[0048] The second lifting beam 7 is movably connected to the second automatic slider 11, the second automatic slider 11 is provided with a second probe 12, and the end of the second probe 12 is connected to the shotcrete repair mechanism 4.

[0049] The shotcrete repair mechanism 4 includes a first connecting block 13, which is located at the end of the first probe 9, and suction cups 14 are provided at both ends of the first connecting block 13.

[0050] The shotcrete repair mechanism 4 includes a second connecting block 15, which is located at the end of the second probe 12, and suction cups 14 are provided at both ends of the second connecting block 15.

[0051] A long strip of pressing plate 16 is provided between the first connecting block 13 and the second connecting block 15. A fiber layer 17 is provided on the side of the pressing plate 16 located at the opening of the suction cup 14.

[0052] A spray nozzle 18 is provided in the middle section of the pressing plate 16, and an overflow nozzle 19 is provided at the upper end of the pressing plate 16;

[0053] Vehicle 1 is equipped with a camera and a signal transceiver.

[0054] Furthermore, the vehicle 1 is provided with a seat groove, which is located above the vehicle, and the horizontal notch of the seat groove faces the position of the shotcrete repair mechanism 4;

[0055] The column 5 is set in the seat groove, and the top of the column 5 is higher than the rotor mechanism 2.

[0056] Furthermore, the top of the column 5 is provided with a horizontal bending section, and both ends of the horizontal bending section are provided with pulleys 20. The pulleys 20 are connected to cables. One end of the cable is connected to the first lifting beam 6, and the other end of the cable is connected to a winch. The winch is set in the seat groove.

[0057] Furthermore, the suction cup 14 is connected to a vent valve 21, and the vent valve 21 is connected to a vacuum pump.

[0058] Furthermore, the spray nozzle 18 penetrates the pressing plate 16. The spray nozzle 18 includes a spray port 22 located on one side of the fiber layer 17. The spray nozzle 18 also includes a connection port 23 located on the side of the pressing plate 16 facing away from the fiber layer 17. The connection port 23 is connected to a grouting pump.

[0059] Furthermore, the overflow head 19 extends through the pressing plate 16, and the overflow head 19 includes a connecting port 24 located on one side of the fiber layer 17, and the overflow head 19 also includes an overflow port 25 located on the side of the pressing plate 16 facing away from the fiber layer 17.

[0060] Furthermore, a positioning head 26 is provided on the side of the spray nozzle 22, and the positioning head 26 is at a higher height than the pressing plate 16 than the spray nozzle 22.

[0061] The same positioning head 26 is provided on the side of the connecting port 24, and the positioning head 26 is at a higher height than the pressing plate 16 than the connecting port 24.

[0062] A miniature camera and an LED light are located near the positioning head 26. A protective shell 27 is provided on the outside of the miniature camera and LED light. The protective shell 27 is made of transparent material.

[0063] The end of the positioning head 26 is hemispherical. The center line of the positioning head 26 is located in the same plane as the center line of the spray head 18 and the center line of the overflow head 19, and the longitudinal center line of the pressing plate 16 is also located in this plane.

[0064] Furthermore, the first lifting beam 6 has elongated holes 28 at both ends, and the long axis of the elongated holes 28 is parallel to the longitudinal axis of the first lifting beam 6.

[0065] The first lifting beam 6 is equipped with weight-reducing holes, which are set horizontally.

[0066] Furthermore, a pair of rollers 10 are provided at both ends of the second lifting beam 7, with the rollers 10 located on both sides of the column 5 respectively;

[0067] The axis of roller 10 is perpendicular to the longitudinal axis of the second lifting beam 7;

[0068] The second lifting beam 7 is equipped with weight-reducing holes, which are set horizontally.

[0069] Furthermore, column 5 is a round rod, and the diameter of column 5 is smaller than the spacing of rollers 10;

[0070] The roller 10 has an arc-shaped groove on its surface, and the radius of the arc-shaped groove is larger than the radius of the column 5.

[0071] During operation, the staff maneuvered the vehicle 1 to the crack on the side of the bridge. Based on the direction of the crack, they operated the first automatic slider 8 and the second automatic slider 11, and guided the positioning head 26 into the crack using a miniature camera. Then, the air in the suction cup 14 was extracted, causing the suction cup 14 at the end of the probe to adhere to both sides of the crack.

[0072] Under the suction of suction cup 14, pressing plate 16 squeezes fiber layer 17, blocking all cracks except for the grouting nozzle 22 and connecting port 24. Grouting then begins through grouting nozzle 22. Grouting stops when overflow from overflow port 25 above grouting head 18 begins. Simultaneously, a miniature camera located at positioning head 26 provides direct observation of the grouting process at grouting nozzle 22 and connecting port 24.

[0073] The technical features of this invention not described can be implemented by or using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this invention, and this invention is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this invention should also be within the protection scope of this invention.

Claims

1. A bridge crack shotcrete repair device, characterized in that, Includes a vehicle, which is equipped with a rotor mechanism; The vehicle is equipped with a positioning mechanism, which is connected to a shotcrete repair mechanism. The positioning mechanism includes two columns installed on the vehicle, and the columns are movably connected to a first lifting beam and a second lifting beam; The first lifting beam is movably connected to a first automatic slider, the first automatic slider is provided with a first probe, and the end of the first probe is connected to the shotcrete repair mechanism; The second lifting beam is movably connected to a second automatic slider, the second automatic slider is equipped with a second probe, and the end of the second probe is connected to the shotcrete repair mechanism; The shotcrete repair mechanism includes a first connecting block, which is disposed at the end of the first probe, and suction cups are provided at both ends of the first connecting block; The shotcrete repair mechanism includes a second connecting block, which is disposed at the end of the second probe, and suction cups are provided at both ends of the second connecting block; A long strip of pressing plate is provided between the first connecting block and the second connecting block, and a fiber layer is provided on the side of the pressing plate located at the opening of the suction cup; A spray nozzle is provided in the middle section of the pressing plate, and an overflow head is provided at the upper end of the pressing plate; The vehicle is equipped with a camera and a signal transceiver. The vehicle is provided with a seat groove, which is located above the vehicle, and the horizontal notch of the seat groove faces the position of the shotcrete repair mechanism; The column is disposed in the seat groove, and the top of the column is higher than the rotor mechanism; A positioning head is provided on the side of the spray nozzle, and the positioning head is at a higher height than the pressing plate than the spray nozzle. The same positioning head is provided on the side of the connecting port, and the positioning head is at a higher height than the pressing plate than the connecting port. A miniature camera and an LED light are positioned near the positioning head, and a protective shell is provided on the outside of the miniature camera and the LED light. The protective shell is made of transparent material. The end of the positioning head is hemispherical, and the centerline of the positioning head, the centerline of the spray head, and the centerline of the overflow head are located in the same plane, and the longitudinal centerline of the pressing plate is also located in this plane.

2. The bridge crack shotcrete repair device according to claim 1, characterized in that, The top of the column is provided with a horizontal bending section, and both ends of the horizontal bending section are provided with pulleys. The pulleys are connected to cables. One end of the cables is connected to the first lifting beam, and the other end of the cables is connected to a winch. The winch is located in the seat groove.

3. The bridge crack shotcrete repair device according to claim 1, characterized in that, The suction cup is connected to a vent valve, and the vent valve is connected to an air pump.

4. The bridge crack shotcrete repair device according to claim 1, characterized in that, The spray head penetrates the pressing plate, and the spray head includes a spray nozzle located on one side of the fiber layer. The spray head also includes a connection port located on the side of the pressing plate opposite to the fiber layer, and the connection port is connected to a grouting pump.

5. A bridge crack shotcrete repair device according to claim 1, characterized in that, The overflow head extends through the pressing plate, and the overflow head includes a connecting port located on one side of the fiber layer, and the overflow head also includes an overflow port located on the side of the pressing plate opposite to the fiber layer.

6. The bridge crack shotcrete repair device according to claim 1, characterized in that, The first lifting beam has elongated holes at both ends, and the long axis of the elongated holes is parallel to the longitudinal axis of the first lifting beam. The first lifting beam is provided with a weight-reducing hole, which is horizontally positioned.

7. A bridge crack shotcrete repair device according to claim 1, characterized in that, The second lifting beam is equipped with a pair of rollers at both ends, and the rollers are located on both sides of the column respectively; The axis of the roller is perpendicular to the longitudinal axis of the second lifting beam; The second lifting beam is provided with weight-reducing holes, which are horizontally positioned.

8. A bridge crack shotcrete repair device according to claim 7, characterized in that, The column is a round rod, and the diameter of the column is smaller than the spacing between the rollers; The roller has an arc-shaped groove on its surface, and the radius of the arc-shaped groove is larger than the radius of the column.

Images