A reservoir dam overflow surface damage repairing device

Abstract

This application discloses a device for repairing damage to the overflow surface of a reservoir dam, relating to the technical field of water conservancy engineering. It includes a vehicle body, a grouting assembly, a conveying assembly, and several baffles. The grouting assembly includes a grout cylinder and a mixing structure. The grout cylinder has a grout storage space inside, and the mixing structure includes a mixing paddle and a first driving component. The conveying assembly includes a fixed pipe, a movable pipe, a discharge nozzle, and a grout pump. The baffles are movably disposed at the bottom of the vehicle body, with a contact surface at the bottom for abutting against the overflow surface, and several frames at the top for detaching and fixing the discharge nozzle. This application can maintain a continuous and stable grouting function, while effectively ensuring the grouting effect during long-term grouting, thereby effectively improving the grouting repair effect.

Description

Technical Field

[0001] This application relates to the technical field of water conservancy engineering, and in particular to a device for repairing damage to the overflow surface of a reservoir dam. Background Technology

[0002] After long-term operation, due to the influence of the construction technology and concrete strength at the time, most of the overflow surface of the reservoir dam will usually suffer damage such as erosion, honeycombing, and grouting failure, and grouting machines are usually needed to repair the damaged areas.

[0003] When erosion pits appear on the overflow surface of a reservoir dam and require repair, the outline of the damaged concrete area to be cleaned is usually marked first, and then a groove is cut using a concrete cutter. Then, small power tools or light tools are used to chisel away the loose concrete, minimizing or avoiding the use of large equipment to avoid disturbing or damaging the integrity of the surrounding concrete. After that, the surface is cleaned of scum, dust, oil, moss, etc. After the surface is dry (moisture content not exceeding 8%), two coats of small-molecule primer are applied. After the primer dries, grouting is performed using a grouting machine (the grouting material is prepared according to factors such as the depth and size of the erosion pit).

[0004] When the erosion pit is large, the grouting repair time is also long. Therefore, the construction personnel need to control the grouting machine to be temporarily parked around the erosion pit. At this time, the grouting machine needs to maintain the function of continuous and stable grouting. At the same time, during the grouting process, it is necessary to ensure that the grout fills the erosion pit evenly and prevent external impurities from being mixed in, so as to ensure the repair quality after the grout solidifies. Summary of the Invention

[0005] This application provides a device for repairing damage to the overflow surface of a reservoir dam, which can maintain a continuous and stable grouting function and effectively ensure the grouting effect during long-term grouting, thereby effectively improving the grouting repair effect.

[0006] This application provides a device for repairing damage to the overflow surface of a reservoir dam, employing the following technical solution:

[0007] A device for repairing damage to the overflow surface of a reservoir dam includes a vehicle body, a grouting assembly, a conveying assembly, and several baffles.

[0008] The vehicle body is used to load the grouting assembly, the conveying assembly and several of the baffles, and is used by construction personnel to control its movement on the inclined overflow surface;

[0009] The grouting assembly includes a grout cylinder and a stirring structure; the grout cylinder has a grout storage space inside, and the stirring structure includes a stirring paddle and a first driving member. The stirring paddle is located in the grout storage space, and the first driving member is used to drive the stirring paddle to rotate.

[0010] The conveying assembly includes a fixed pipe, a movable pipe, a discharge nozzle, and a slurry pump; one end of the fixed pipe is connected to the slurry cylinder and communicates with the bottom of the slurry storage space, one end of the movable pipe is connected to the other end of the fixed pipe, and the discharge nozzle is located at the end of the movable pipe away from the fixed pipe; the slurry pump is mounted on the fixed pipe and is used to drive the slurry to flow along the fixed pipe;

[0011] The baffle is movably disposed at the bottom of the vehicle body, and its bottom has an abutting surface for conforming and abutting with the overflow surface. Its top is provided with several frames for detaching and fixing the discharge nozzles, and the discharge area of ​​the discharge nozzles installed on the frames is located on the side of the baffle away from the vehicle body.

[0012] By adopting the above technical solution, the mixing structure can maintain stirring of the slurry after it has been prepared and poured into the slurry storage space, improving the uniformity of the slurry composition and effectively reducing the probability of the slurry solidifying under static conditions. This allows the repair device to maintain a continuous and stable grouting function. At the same time, during the grouting repair process, the baffle not only contacts the overflow surface to improve the positional stability of the vehicle body and reduce vibration, but also effectively prevents external impurities from entering the erosion pit due to vehicle vibration. The discharge nozzle installed on the frame can free up the hands of construction personnel and effectively ensure the grouting effect during long-term grouting, thereby effectively improving the grouting repair effect.

[0013] Optionally, it also includes a washing assembly disposed on the vehicle body, and the washing assembly includes a water tank, a water pipe and a water pump;

[0014] The water storage tank has an internal cavity. One end of the water supply pipe is connected to the water storage tank and communicates with the bottom of the cavity. The other end of the water supply pipe is connected to the fixed pipe. The water pump is installed on the water supply pipe and is used to drive water to flow along the water supply pipe.

[0015] By adopting the above technical solution, the flushing component can flush the inside of the fixed pipe, thereby effectively solving the problem of blockage caused by grout solidification inside the fixed pipe, and enabling the repair device to effectively maintain the function of continuous and stable grouting.

[0016] Optionally, the flushing assembly further includes a water supply valve for controlling whether the water supply pipe and the fixed pipe are connected, and the water supply valve is located on the fixed pipe near the slurry cylinder.

[0017] By adopting the above technical solution, construction personnel can easily select flushing components according to their needs, reduce the impact of grouting on the flushing components, and effectively increase the flushing range of the flushing components on the internal space of the fixed pipe.

[0018] Optionally, the conveying assembly is further configured with two conveying valves for controlling whether the fixed tube conveys material;

[0019] The conveying valve is located on the fixed pipe near the water supply pipe, and the connection between the water supply pipe and the fixed pipe is near the slurry cylinder. The two conveying valves are located on both sides of the connection between the water supply pipe and the fixed pipe.

[0020] By adopting the above technical solution, construction personnel can easily flush the fixed pipe or the inside of the slurry cylinder as needed, and the inside of the slurry cylinder can be stored for different slurries after flushing. At the same time, construction personnel can easily use the flushing components and discharge nozzles to flush the erosion pits before grouting.

[0021] Optionally, the stirring structure further includes a movable component and a second driving component;

[0022] The movable component is movably connected to the slurry cylinder, and its direction of movement is parallel to the rotation axis of the stirring paddle. The first driving component is disposed on the movable component, and the stirring paddle is rotatably connected to the movable component. The second driving component is disposed on the top of the slurry cylinder and is used to drive the movable component to move.

[0023] The end of the stirring paddle away from the movable part has a sealing part for sealing the connection between the fixed pipe and the slurry cylinder, and the sealing part achieves sealing when the stirring paddle moves to its limit position in the direction close to the fixed pipe.

[0024] By adopting the above technical solution, when grouting is not performed, the mixing paddle stirs the grout in the grout storage space in a blocked state, which can effectively reduce the probability of the grout solidifying and blocking in the fixed pipe.

[0025] Optionally, the baffle has a flow equalization surface for equalizing the slurry on the side away from the vehicle body. The flow equalization surface is inclined downward in the direction away from the vehicle body, and the discharge nozzle mounted on the frame discharges material towards the flow equalization surface.

[0026] By adopting the above technical solutions, the grouting process can be made more uniform, the probability of grout splashing can be effectively reduced, and the air bubbles present during the grout filling of erosion pits can be effectively reduced, thereby effectively improving the grouting repair effect.

[0027] Optionally, the top of the baffle is provided with a frame, which is movably connected to the baffle, and the direction of movement of the frame is parallel to the length direction of the baffle.

[0028] By adopting the above technical solution, construction personnel can easily control the position of the discharge nozzle relative to the erosion pit after it is installed on the frame, thereby facilitating the uniform injection of slurry into the erosion pit.

[0029] Optionally, the top of the baffle is also movably provided with two limiting members for limiting the frame;

[0030] The movement direction of the limiting member is parallel to the movement direction of the frame. The two limiting members are located on both sides of the frame, and the limiting members are positioned on the baffle after movement.

[0031] By adopting the above technical solution, construction personnel can easily position the frame using the limiting device. At the same time, construction personnel can also limit the range of motion of the frame according to the size of the erosion pit, reducing the probability that the grout will flow directly outside the erosion pit during the grouting process of the movable frame.

[0032] Optionally, the frame body has an internal movable groove and a ball is provided in the movable groove;

[0033] The ball rolls along the movable groove, and the direction of the ball's movement is parallel to the direction of movement of the frame. The ball is affected by vibration and rolls back and forth in the movable groove, impacting the inner wall of the movable groove.

[0034] By adopting the above technical solution, when the baffle is in an inclined position on the overflow surface, the frame is first controlled to move to the upper inclined position. During the grouting repair process, the ball will be affected by the operation of the grouting component and will roll back and forth in the moving groove. The force exerted by the ball on the frame will drive the frame to move gradually towards the lower inclined position, thereby achieving more uniform grouting in the erosion pit and eliminating the trouble of manually operating the frame to change the grouting position.

[0035] Optionally, grouting repair is performed with the vehicle body positioned above the erosion pit at an angle, and the baffle located between the vehicle body and the erosion pit is applied.

[0036] By adopting the above technical solution, the baffle can effectively prevent impurities on the overflow surface above the erosion pit from entering the erosion pit under their own weight and external influences (wind, vibration, etc.). At the same time, it can improve the utilization rate of slurry in the slurry storage space and reduce the probability that the slurry cannot be completely discharged through the conveying component due to the tilting of the slurry cylinder.

[0037] In summary, this application includes at least one of the following beneficial effects:

[0038] 1. It can maintain a continuous and stable grouting function, and effectively ensure the grouting effect during long-term grouting, thereby effectively improving the grouting repair effect;

[0039] 2. It enables construction personnel to easily flush erosion pits, the inside of conveying components, and the inside of grout cylinders as needed, making the grouting repair process more convenient and faster.

[0040] 3. It can effectively reduce the probability of external impurities entering the erosion pit during the grouting repair process, thereby effectively improving the grouting repair effect;

[0041] 4. It can effectively improve the grouting effect in erosion pits, improve the uniformity of grouting, reduce the formation of air bubbles, and effectively free up the hands of construction workers, making it suitable for long-term grouting repairs. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the structure of a reservoir dam overflow surface damage repair device during grouting repair according to an embodiment of this application;

[0043] Figure 2 This is a schematic diagram of a repair device for damaged overflow surface of a reservoir dam according to an embodiment of this application;

[0044] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0045] Figure 4 This is a cross-sectional view of a reservoir dam overflow surface damage repair device being used for grouting repair according to an embodiment of this application;

[0046] Figure 5 This is a partial schematic diagram (transport components omitted) of a reservoir dam overflow surface damage repair device during grouting repair near an erosion pit, according to an embodiment of this application.

[0047] Explanation of reference numerals in the attached drawings: 1. Overflow surface; 11. Erosion pit; 2. Vehicle body; 21. Handle; 22. Drive structure; 3. Grouting assembly; 31. Grout cylinder; 311. Grout storage space; 32. Mixing structure; 321. Mixing paddle; 3211. Sealing part; 322. First drive component; 323. Moving part; 324. Second drive component; 4. Conveying assembly; 41. Fixed pipe; 42. Moving pipe; 43. Discharge nozzle; 44. Grout pump; 45. Conveying valve; 5. Baffle; 51. Contact surface; 52. Flow equalization surface; 6. Flushing assembly; 61. Water storage tank; 62. Water supply pipe; 63. Water pump; 64. Water supply valve; 7. Frame; 71. Moving groove; 8. Limiting component; 9. Ball bearing. Detailed Implementation

[0048] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0049] Reference Figure 1 and Figure 2 This application discloses a device for repairing damage to the overflow surface of a reservoir dam, used to assist construction workers in grouting repairs of erosion pits 11 on an inclined overflow surface 1. In this embodiment, the erosion pit 11 is preferably rectangular in shape after being grooved, and the repair device is positioned on the overflow surface 1 to grout the erosion pit 11 from above its inclined surface.

[0050] The repair device includes a vehicle body 2 that facilitates the movement and repositioning of the repair device on the overflow surface 1, a grouting assembly 3 installed on the vehicle body 2 for completing grouting repair, a conveying assembly 4 for conveying grout and other materials, several baffles 5 for improving the positional stability of the vehicle body 2 on the overflow surface 1 and preventing impurities from entering the erosion pit 11 during the grouting repair process, and a flushing assembly 6 for achieving the flushing function.

[0051] The vehicle body 2 has a rectangular parallelepiped structure, with multiple casters mounted on its bottom. These casters contact the overflow surface 1, allowing the vehicle to move on it. A handle 21 is also located on one side of the vehicle body 2 along its length, facilitating movement by construction personnel. In this embodiment, preferably, four casters are mounted on the bottom of the vehicle body 2, located at the four corners of the vehicle body 2. Since casters are common existing technology, they will not be described in detail here, and only a brief description will be provided.

[0052] Reference Figure 2 and Figure 3 The grouting assembly 3 is installed on the vehicle body 2 away from the handle 21, and includes a grout cylinder 31 for storing grout and a stirring structure 32 for stirring the grout.

[0053] Reference Figure 1 and Figure 4 The slurry cylinder 31 has a cylindrical structure, with an internal slurry storage space 311 that is also cylindrical. It is fixedly installed on the top of the vehicle body 2 with its axis parallel to the height of the vehicle body 2. The top of the vehicle body 2, below the slurry cylinder 31, has a perforated structure for installing the conveying assembly 4, and the bottom of the slurry cylinder 31 has an opening for the slurry to enter the conveying assembly 4. In this embodiment, preferably, the top of the slurry cylinder 31 also has a pouring spout for construction personnel to pour slurry, prepared according to the damage condition of the overflow surface 1 and material factors, into the slurry storage space 311, and a cover plate for controlling the opening and closing of the pouring spout. Since the pouring spout and cover plate with the above functions are common existing technologies, they will not be described in detail here, and are only briefly shown in the accompanying drawings.

[0054] Reference Figure 2 and Figure 4 The stirring structure 32 includes a stirring paddle 321, a first driving member 322, a movable member 323, and a second driving member 324.

[0055] The second driving member 324 is fixedly installed on the top of the slurry cylinder 31, and the movable member 323 is located in the slurry storage space 311. The second driving member 324 is used to drive the movable member 323 to move relative to the slurry cylinder 31 along the axial direction of the slurry cylinder 31, and the movable member 323 remains in a central position in the slurry storage space 311 during the movement. The first driving member 322 is fixedly installed inside the movable member 323, and one end of the stirring paddle 321 is rotatably connected to the movable member 323. Its rotation axis coincides with its own axis. The stirring paddle 321 is located in the slurry storage space 311, and the first driving member 322 is used to drive the stirring paddle 321 to rotate relative to the movable member 323 to stir the slurry. In this embodiment, the first driving member 322 is preferably a servo motor, and the second driving member 324 is preferably a servo cylinder. Preferably, the blades of the stirring paddle 321 can drive the slurry to surge upward during rotation to keep its composition uniform.

[0056] Reference Figure 2 and Figure 3 The conveying assembly 4 includes a fixed pipe 41 with a certain rigidity, a movable pipe 42 with a certain flexibility, a discharge nozzle 43 for supplying slurry and other materials, and a slurry pump 44 for driving the slurry to flow along the movable pipe 42.

[0057] One end of the fixed pipe 41 is fixedly connected to the bottom of the slurry cylinder 31 and communicates with the bottom of the storage space. One end of the movable pipe 42 is connected to the end of the fixed pipe 41 away from the slurry cylinder 31, and the discharge nozzle 43 is installed on the end of the movable pipe 42 away from the fixed pipe 41. The slurry pump 44 is fixedly installed on the fixed pipe 41 and is used to drive the slurry in the storage space to flow through the fixed pipe 41 into the movable pipe 42, and finally complete the discharge through the discharge nozzle 43. In this embodiment, the fixed pipe 41 is preferably installed vertically below the slurry cylinder 31, and its axis coincides with the axis of the slurry cylinder 31; the movable pipe 42 is preferably made of rubber, and its length meets the needs of the construction personnel to control the movement of the discharge nozzle 43 around the vehicle body 2; the slurry pump 44 is preferably fixedly installed on the vehicle body 2 and located near the movable pipe 42 of the fixed pipe 41; since the discharge nozzle 43 and the slurry pump 44 with the above functions are common existing technologies, they will not be described in detail here, and they are only briefly shown in the accompanying drawings.

[0058] Reference Figure 4The end of the stirring paddle 321 away from the movable part 323 has a sealing part 3211 for sealing the connection between the slurry storage space 311 and the fixed pipe 41, and the second driving member 324 has a restriction on the movement of the movable block. When the movable block moves away from the fixed pipe 41 to the limit position, the sealing part 3211 will be located in the storage space, and the fixed pipe 41 will normally be connected to the bottom of the slurry storage space 311. At this time, the slurry can smoothly enter the fixed pipe 41 under the action of the slurry pump 44, and can adapt to the flushing component 6 to flush the inside of the slurry cylinder 31. When the movable block moves towards the fixed pipe 41 to the limit position, the sealing part 3211 will seal the connection between the slurry storage space 311 and the fixed pipe 41. At this time, the slurry in the storage space will not be able to enter the fixed pipe 41, and the flushing component 6 will not be able to flush the inside of the slurry cylinder 31. At this time, the stirring paddle 321 can still rotate relative to the slurry cylinder 31 to stir the slurry.

[0059] Reference Figure 2 and Figure 3 The flushing assembly 6 is installed on the top of the vehicle body 2, located on the side of the grouting assembly 3 near the handle 21, and includes a water tank 61 for storing flushing water, a water pipe 62 for guiding water flow, and a water pump 63 for driving water to flow along the water pipe 62.

[0060] The water storage tank 61 has a cylindrical structure, with an internal cylindrical cavity for storing rinsing water. It is fixedly mounted on the top of the vehicle body 2 with its axis parallel to the height of the vehicle body 2. Below the water storage tank 61, the top of the vehicle body 2 has a perforated structure for mounting other structures of the rinsing assembly 6, and the bottom of the water storage tank 61 has an opening for water output. In this embodiment, preferably, the top of the water storage tank 61 also has a pouring spout for workers to pour rinsing water into the cavity and a cover for controlling the opening and closing of the pouring spout.

[0061] One end of the water supply pipe 62 is fixedly connected to the bottom of the water storage tank 61 and communicates with the bottom of the cavity of the water storage tank 61, and the other end is fixedly connected to the fixed pipe 41. In this embodiment, preferably, the portion of the water supply pipe 62 near the water storage tank 61 is vertical and its axis coincides with the axis of the water storage tank 61, and the portion near the fixed pipe 41 extends horizontally; and preferably, the connection between the water supply pipe 62 and the fixed pipe 41 is near the bottom of the slurry cylinder 31.

[0062] A water pump 63 is installed on a water pipe 62 and is used to drive water from a water storage tank 61 through the water pipe 62 into a fixed pipe 41. In this embodiment, the water pump 63 is preferably fixedly installed on the vehicle body 2 and located on the water pipe 62 near the water storage tank 61. Since the water pump 63 with the above-mentioned functions is common prior art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0063] Furthermore, the preferred flushing assembly 6 also includes a water supply valve 64 for controlling whether the water supply pipe 62 is connected to the fixed pipe 41, and the preferred delivery assembly 4 also includes two delivery valves 45 for controlling the flow direction of water entering the fixed pipe 41.

[0064] The water supply valve 64 is installed on the water supply pipe 62 near the fixed pipe 41. When it is open, the water pump 63 drives the water in the water storage tank 61 through the water supply pipe 62 into the fixed pipe 41. When it is closed, it prevents the slurry flowing along the fixed pipe 41 from entering the water supply pipe 62. In this embodiment, the water supply valve 64 is preferably a manual valve, which is controlled by the construction personnel as needed. Since manual valves are common existing technology, they will not be described in detail here, and are only briefly shown in the accompanying drawings.

[0065] Both conveying valves 45 are installed on the fixed pipe 41 near the bottom of the slurry cylinder 31, and the two conveying valves 45 are located on both sides of the connection between the water supply pipe 62 and the fixed pipe 41. In this embodiment, the conveying valves 45 are preferably manual valves.

[0066] When the storage space is connected to the fixed pipe 41, when grouting repair is required, the water supply valve 64 should be closed and the two conveying valves 45 should be opened at the same time. When it is necessary to flush the fixed pipe 41, the movable pipe 42 and the discharge nozzle 43 or to flush the erosion pit 11 after grooving through the conveying assembly 4, the water supply valve 64 and the lower conveying valve 45 should be opened and the upper conveying valve 45 should be closed at the same time. When it is necessary to flush the inside of the slurry cylinder 31 in order to pour in different slurries later, the water supply valve 64 and the upper conveying valve 45 should be opened and the lower conveying valve 45 should be closed at the same time.

[0067] Reference Figure 1 and Figure 2 The baffle 5 is movably installed at the bottom of the vehicle body 2, and its movement relative to the vehicle body 2 is controlled by the drive structure 22 installed at the bottom of the vehicle body 2. In this embodiment, preferably, three baffles 5 are installed at the bottom of the vehicle body 2, and the three baffles 5 are respectively located on the three sides of the vehicle body 2 excluding the location of the handle 21.

[0068] Reference Figure 1 and Figure 5The baffle 5 is a rectangular plate structure, and its bottom has an abutment surface 51 that is positioned by friction after contacting the overflow surface 1. The top of the baffle 5 is movably mounted with a frame 7 for the dispensing and positioning of the discharge nozzle 43. The movement direction of the frame 7 is parallel to the length direction of the baffle 5, and the discharge nozzle 43 is installed on the frame 7 with the discharge end pointing downward along the width direction of the baffle 5. The side of the baffle 5 away from the vehicle body 2 has a flow equalization surface 52 for equalizing the flow of slurry. The discharge end of the discharge nozzle 43 installed on the frame 7 faces the flow equalization surface 52. When the abutment surface 51 contacts the overflow surface 1, the baffle 5 is located on the inclined upper side of the erosion pit 11, and the flow equalization surface 52 is inclined downward toward the direction close to the erosion pit 11, so that the slurry discharged through the discharge nozzle 43 flows along the overflow surface 1 and enters the erosion pit 11 evenly. In this embodiment, the length of the baffle 5 is preferably greater than the length of the erosion pit 11. After the contact surface 51 of the baffle 5 adjacent to the erosion pit 11 comes into contact with the overflow surface 1, its two ends in the length direction are respectively located on both sides of the erosion pit 11. And preferably, the bottom of the baffle 5 is made of rubber material.

[0069] Reference Figure 1 and Figure 2 In this embodiment, the preferred drive structure 22 includes a rotating arm and a servo motor. One end of the rotating arm is rotatably connected to the bottom of the vehicle body 2, with its rotation axis perpendicular to its own length direction and parallel to the length direction of the side adjacent to the vehicle body 2. The other end of the rotating arm is connected to the side of the baffle 5 away from the flow equalization surface 52, with the connection point close to the top of the baffle 5 and centered along the length direction of the baffle 5. The baffle 5 can swing up and down and rotate left and right relative to the rotating arm. The servo motor is fixedly installed at the bottom of the vehicle body 2 and is used to drive the rotating arm to rotate relative to the vehicle body 2. Since the drive structure 22 with the above functions is common prior art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0070] During the process of the drive structure 22 driving the baffle 5 to move, the baffle 5 can maintain the position of the contact surface 51 at the bottom of the baffle 5 under its own gravity; when the servo motor drives the rotating arm to rotate upward to the limit position, the baffle 5 and the overflow surface 1 maintain a distance; when the servo motor drives the rotating arm to rotate downward to the limit position, the contact surface 51 of the baffle 5 will be in contact with the overflow surface 1. During this process, the rotational freedom of the baffle 5 relative to the rotating arm can make it adaptively rotate and adjust according to the overflow surface 1 until the contact surface 51 is in contact with the overflow surface 1 and applies downward pressure to the overflow surface 1.

[0071] Reference Figure 2 and Figure 5Two limiting members 8 are movably installed on the top of the baffle 5 to restrict the movement area of ​​the frame 7. The movement direction of the limiting members 8 is parallel to the movement direction of the frame 7, and the two limiting members 8 are located on both sides of the frame 7. In this embodiment, it is preferred that the limiting members 8 can be positioned relative to the baffle 5 after being adjusted relative to the baffle 5; and it is preferred that the limiting members 8 achieve the function of positioning relative to the baffle 5 by being tightened with bolts. Since the limiting members 8 with the above functions are common prior art, they will not be described in detail here, and only a brief representation is given in the accompanying drawings.

[0072] At this time, by adjusting the positions of the two limiting pieces 8 on the baffle 5, the frame 7 can be positioned or the area in which the frame 7 moves relative to the baffle 5 can be restricted.

[0073] The frame 7 also has a movable ball 9 and a movable groove 71 for the ball 9 to roll inside. The movable groove 71 extends along the direction of movement of the frame 7 and is used to guide the ball 9 to roll in the direction of movement of the frame 7. During the grouting repair process, the entire device is affected by vibration due to the operation of the mixing structure 32 and the grout pump 44. At this time, the ball 9 will roll back and forth in the movable groove 71 due to the vibration. The impact generated on the inner wall of the movable groove 71 during the back and forth rolling process has a tendency to drive the frame 7 to move relative to the baffle 5.

[0074] The implementation principle of the reservoir dam overflow surface damage repair device in this application embodiment is as follows:

[0075] Before repairing the erosion pit 11 on the overflow surface 1, pour the prepared slurry in sufficient quantity into the storage space and pour sufficient flushing water into the cavity of the water tank 61. Then control the vehicle body 2 to move around the erosion pit 11, and then control the contact surfaces 51 of the three baffles 5 to be in contact with the overflow surface 1, so that the vehicle body 2 is positioned on the overflow surface 1.

[0076] Next, the erosion pit 11 is grooved, and then the water supply valve 64 and the lower conveying valve 45 are opened, while the upper conveying valve 45 is closed. Then the water pump 63 is turned on, and the construction personnel hold the discharge nozzle 43 to rinse the erosion pit 11 to keep the inside of the erosion pit 11 clean after grooving.

[0077] After the inside of the erosion pit 11 is dry, move the vehicle body 2 to one side above the tilt of the erosion pit 11, and then control the contact surfaces 51 of the three baffles 5 to be in contact with the overflow surface 1 to position the vehicle body 2. At this time, the baffle 5 on the side closer to the erosion pit 11 is located between the erosion pit 11 and the vehicle body 2, effectively preventing impurities on the overflow surface 1 from entering the erosion pit 11 under their own gravity.

[0078] Before grouting repair, the discharge nozzle 43 is installed on the frame 7 near the erosion pit 11. Then, the water supply valve 64 is closed and the two delivery valves 45 are opened at the same time. Then, the grout pump 44 is turned on, which drives the grout in the storage space 311 to flow evenly into the erosion pit 11 under the uniform flow action of the uniform flow surface 52 after passing through the fixed pipe 41, the movable pipe 42 and the discharge nozzle 43. During this process, the stirring structure 32 keeps stirring the grout in the storage space 311.

[0079] Specifically, when the erosion pit 11 has a certain inclination on the overflow surface 1, before grouting repair, the positions of the two limiting pieces 8 at the top of the baffle 5 are determined to limit the range of motion of the frame 7. Then, the frame 7 is moved to the upper inclined end before grouting repair. At this time, the rolling ball 9 is affected by vibration and rolls in the moving groove 71. The force applied to the frame 7 will drive the frame 7 to tilt downward under its own gravity within the allowable range of motion, so that the grouting position gradually changes, thereby improving the efficiency and effect of grouting and reducing grout overflow and waste.

[0080] Specifically, when the erosion pit 11 is relatively neat on the overflow surface 1 (such as its length direction being parallel or perpendicular to the tilt direction of the overflow surface 1), before grouting repair, it is only necessary to restrict the movement of the frame 7 relative to the baffle 5 by two limiting members 8, and to center the frame 7 at the top position of the baffle 5, and to center the discharge nozzle 43 installed on the frame 7 relative to the length direction of the erosion pit 11, so that grouting repair can be carried out.

[0081] After the grouting repair is completed, during the solidification process of the grout, the construction personnel can keep the vehicle body 2 in its current position as needed. At this time, the baffle 5 can still prevent impurities from entering from above the erosion pit 11; or control the vehicle body 2 to move away from the erosion pit 11, and then use the flushing component 6 and the conveying component 4 to flush the flow equalization surface 52 of the baffle 5, the inside of the fixed pipe 41, the inside of the movable pipe 42 and the inside of the discharge nozzle 43, so as to facilitate the next use.

[0082] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for repairing damage to the overflow surface of a reservoir dam, characterized in that, It includes a vehicle body (2), a grouting assembly (3), a conveying assembly (4), and several baffles (5); The vehicle body (2) is used to load the grouting assembly (3), the conveying assembly (4) and several of the baffles (5), and is used by construction personnel to control the movement on the inclined overflow surface (1); The grouting assembly (3) includes a grout cylinder (31) and a stirring structure (32); the grout cylinder (31) has a grout storage space (311) inside, and the stirring structure (32) includes a stirring paddle (321) and a first driving member (322). The stirring paddle (321) is located in the grout storage space (311), and the first driving member (322) is used to drive the stirring paddle (321) to rotate. The conveying assembly (4) includes a fixed pipe (41), a movable pipe (42), a discharge nozzle (43), and a slurry pump (44); one end of the fixed pipe (41) is connected to the slurry cylinder (31) and communicates with the bottom of the slurry storage space (311); one end of the movable pipe (42) is connected to the other end of the fixed pipe (41), and the discharge nozzle (43) is located at the end of the movable pipe (42) away from the fixed pipe (41); the slurry pump (44) is located on the fixed pipe (41) and is used to drive the slurry to flow along the fixed pipe (41); The baffle (5) is movably disposed at the bottom of the vehicle body (2), and its bottom has an abutting surface (51) for abutting against the overflow surface (1). Its top is provided with a plurality of frames (7) for disassembling and fixing the discharge nozzle (43), and the discharge area of ​​the discharge nozzle (43) installed on the frame (7) is located on the side of the baffle (5) away from the vehicle body (2). The baffle (5) has a flow equalization surface (52) for equalizing the slurry on the side away from the vehicle body (2). The flow equalization surface (52) is inclined downward in the direction away from the vehicle body (2), and the discharge nozzle (43) installed on the frame (7) discharges material towards the flow equalization surface (52). The top of the baffle (5) is provided with a frame (7), the frame (7) is movably connected to the baffle (5), and the direction of movement of the frame (7) is parallel to the length direction of the baffle (5); The top of the baffle (5) is also movably provided with two limiting members (8) for limiting the frame (7). The movement direction of the limiting member (8) is parallel to the movement direction of the frame (7), the two limiting members (8) are located on both sides of the frame (7), and the limiting member (8) is positioned on the baffle (5) after it moves. The frame (7) has an internal movable groove (71) and a ball (9) is provided in the movable groove (71); The ball (9) rolls along the movable groove (71), and the direction of the ball (9) is parallel to the direction of the frame (7). The ball (9) is affected by vibration and rolls back and forth in the movable groove (71) to hit the inner wall of the movable groove (71). Grouting repair is performed with the vehicle body (2) tilted above the erosion pit (11), and the baffle (5) located between the vehicle body (2) and the erosion pit (11) is applied.

2. The device for repairing damage to the overflow surface of a reservoir dam according to claim 1, characterized in that, It also includes a flushing assembly (6) disposed on the vehicle body (2), and the flushing assembly (6) includes a water tank (61), a water pipe (62) and a water pump (63); The water storage tank (61) has an internal cavity. One end of the water supply pipe (62) is connected to the water storage tank (61) and communicates with the bottom of the cavity. The other end of the water supply pipe (62) is connected to the fixed pipe (41). The water pump (63) is installed on the water supply pipe (62) and is used to drive water to flow along the water supply pipe (62).

3. The device for repairing damage to the overflow surface of a reservoir dam according to claim 2, characterized in that, The flushing assembly (6) further includes a water supply valve (64) for controlling whether the water supply pipe (62) and the fixed pipe (41) are connected, and the water supply valve (64) is located on the fixed pipe (41) near the slurry cylinder (31).

4. The device for repairing damage to the overflow surface of a reservoir dam according to claim 3, characterized in that, The conveying assembly (4) also includes two conveying valves (45) for controlling whether the fixed pipe (41) conveys material. The delivery valve (45) is located on the fixed pipe (41) near the water supply pipe (62). The connection between the water supply pipe (62) and the fixed pipe (41) is close to the slurry cylinder (31), and the two delivery valves (45) are located on both sides of the connection between the water supply pipe (62) and the fixed pipe (41).

5. A device for repairing damage to the overflow surface of a reservoir dam according to claim 4, characterized in that, The stirring structure (32) also includes a movable part (323) and a second driving part (324); The movable component (323) is movably connected to the slurry cylinder (31), and its direction of movement is parallel to the rotation axis of the stirring paddle (321). The first driving component (322) is disposed on the movable component (323), and the stirring paddle (321) is rotatably connected to the movable component (323). The second driving component (324) is disposed on the top of the slurry cylinder (31), and it is used to drive the movable component (323) to move. The stirring paddle (321) has a sealing part (3211) at one end away from the movable part (323) for sealing the connection between the fixed pipe (41) and the slurry cylinder (31), and the sealing part (3211) is sealed when the stirring paddle (321) moves to the limit position in the direction close to the fixed pipe (41).

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