A concrete crack rapid repairing device and a method of using the same

Abstract

The embodiment of the present application provides a concrete crack quick repairing device and a use method thereof, and relates to the field of concrete repairing equipment. The concrete hopper correcting mechanism comprises: a discharging part and a correcting assembly; the discharging part is connected with the correcting assembly; the discharging part can change the discharging width of the concrete under control; the correcting assembly can centrally arrange the discharging part under control; the correcting assembly comprises: a first connecting frame, a swing rod, a cross frame, a lead screw, a first motor, a moving seat, a cross arm, a first connecting rod and a second connecting rod; the swing rod has two ends, which are symmetrically arranged in the up-down direction; one end of the first connecting frame is rotatably installed at one end of the swing rod at the top, and the other end of the first connecting frame is connected with the discharging part. The center adjustment work can be carried out, the discharging part can be centrally arranged relative to the gap to be repaired, and then the repairing concrete can be accurately filled into the gap.

Description

Technical Field

[0001] This invention relates to the field of concrete repair equipment, specifically to a rapid concrete crack repair device and its usage method. Background Technology

[0002] In the field of construction engineering, concrete structures are prone to developing cracks after long-term use. If not repaired in time, these cracks can reduce structural stability and pose safety hazards. Currently, the mixing and dispensing of concrete cracks are mostly done using dispersion equipment. Compared with common repair materials, magnesium phosphate cement has gradually gained favor from researchers and the construction market due to its advantages such as rapid hydration reaction, rapid early strength development, wide environmental adaptability, ability to harden even at sub-zero temperatures, and reliable bonding quality. Research has focused on the use of magnesium phosphate cement for rapid repair.

[0003] Currently, when using phosphatase cement to make repair concrete, a mixer is usually used to prepare the concrete, and then a discharge pipe is used to pour the concrete into the gap. However, since the treated gap is usually narrow and long, if the discharge position is not centered, gaps may appear in the corners after discharge, affecting the quality of the repair.

[0004] Based on this, the present invention is proposed. Summary of the Invention

[0005] According to an embodiment of the present invention, in a first aspect, a rapid repair device for concrete cracks is provided.

[0006] The rapid concrete crack repair device includes: a concrete hopper straightening mechanism;

[0007] The concrete hopper straightening mechanism includes: a feeding section and a straightening component; the feeding section is connected to the straightening component; the feeding section is controllable to change the feeding width of the concrete; the straightening component is controllable to center the feeding section.

[0008] The correction assembly includes: a first connecting frame, a swing rod, a crossbar, a lead screw, a first motor, a moving seat, a cross arm, a first connecting rod, and a second connecting rod;

[0009] There are two swing rods, symmetrically distributed vertically; one end of the first connecting frame is rotatably mounted on one end of the swing rod at the top, and the other end of the first connecting frame is connected to the unloading part; the cross frame is rotatably mounted on one end of the swing rod at the bottom; the lead screw is rotatably mounted inside the cross frame, and the threads on the lead screw are symmetrically arranged on both sides; the first motor is mounted on one end of the cross frame, and its output end is connected to one end of the lead screw; there are two movable seats, symmetrically screwed onto the lead screw; there are two cross arms, respectively mounted on the bottom ends of the two movable seats; the bottom end of the first connecting rod is fixedly mounted on the upper surface of the swing rod at the bottom, and the other end slides through the swing rod at the top; there are two second connecting rods, symmetrically arranged relative to the cross frame, the bottom end of the second connecting rod is fixedly mounted on the upper surface of the cross frame, and the other end slides through the first connecting frame.

[0010] Preferably, the correction assembly further includes: a guide rod;

[0011] The guide rod is installed inside the cross frame, and the two movable seats are slidably connected to the guide rod.

[0012] Preferably, the correction component further includes: a guide wheel;

[0013] There are several guide wheels, which are installed at equal intervals on the opposite sides of the two cross arms.

[0014] Preferably, the feeding section includes: a guide cylinder, a guide plate, a second connecting frame, a rotating cylinder, an extension arm, a first electric push rod, and a distributing hopper;

[0015] The guide cylinder is installed at one end of the first connecting frame; the guide plate is installed at the top of the guide cylinder; the top of the second connecting frame is connected to the guide cylinder; the rotating cylinder is rotatably connected to the second connecting frame, and the rotating cylinder is connected to the bottom end of the guide cylinder; one end of the extension arm is connected to the rotating cylinder; the first electric push rod is rotatably connected to the second connecting frame, and the output end of the first electric push rod is rotatably connected to the other end of the extension arm; the middle part of the distributing hopper is connected to the bottom end of the rotating cylinder.

[0016] Preferably, the guide plate is arranged in an expanding manner from bottom to top.

[0017] Preferably, it also includes: a base, wheels, a mixing device, and a second electric push rod;

[0018] The mixing equipment is rotatably mounted on the top of the base; the second electric push rod is rotatably mounted on the base, and its output end is rotatably connected to the mixing equipment; there are four wheels, which are rotatably mounted on both sides of the base; the concrete hopper straightening mechanism is mounted on the front side of the base.

[0019] Preferably, the mixing equipment includes: a frame, a bearing frame, a mixing cylinder, a gear ring, a reducer, a rotating shaft, and gears;

[0020] The frame is placed on top of the base, and one end of the frame is rotatably connected to the base; the output end of the second electric push rod is rotatably connected to the other end of the frame; there are two bearing brackets, which are symmetrically installed on the top of the frame; both ends of the mixing cylinder are rotatably installed on the two bearing brackets; there are two gear rings, which are symmetrically installed on the mixing cylinder; the reducer is installed on the frame; one end of the rotating shaft is connected to the output end of the reducer, and the other end is rotatably installed on the frame; there are two gears, which are installed on the rotating shaft, and the two gears are meshed with the two gear rings respectively.

[0021] Preferably, it further includes: a drive assembly; the drive assembly includes: a third electric push rod, a push plate, a pull rod, a mounting plate, and a lifting plate;

[0022] The third electric push rod is mounted on the base; the push plate is mounted on the output end of the third electric push rod; there are two pull rods, which are symmetrically arranged above and below the push plate, and one end of the pull rod is rotatably connected to the push plate; there are two mounting plates, which are rotatably connected to the other ends of the two pull rods respectively; the two lifting plates are slidably connected to the base, and the other ends of the two swing rods are rotatably connected to the lifting plates, and the mounting plate is connected to the lifting plates.

[0023] Preferably, the two pull rods are arranged in a V-shape.

[0024] In a second aspect of the invention, a method of using a rapid concrete crack repair device is provided, the method comprising:

[0025] Step 1: Use a cutting machine to cut the damaged gap area into a rectangular groove, and chisel the inner edge of the cut rectangular groove into a stepped shape, ensuring that the depth of each groove layer is ≥3cm;

[0026] Step 2: Remove all loose, hollow, oily, and rusty concrete; use a combination of high-pressure water washing and compressed air blowing to ensure that there is no floating dust or standing water in the trench; before construction, fully wet the inner wall of the trench for 20 minutes until it is saturated with water and there is no standing water on the surface.

[0027] Step 3: Apply a special MPC interface agent evenly to the inner wall of the rectangular groove to enhance the adhesion between the subsequent concrete and the groove wall.

[0028] Step 4: Place the raw materials for making magnesium phosphate cement concrete into the mixing drum, turn on the reducer, and drive the mixing drum to rotate through the transmission action of gears and gear rings to stir and mix the raw materials to make repair concrete.

[0029] Step 5: Move the equipment to the rectangular groove position, aligning the material feeding section with the rectangular groove; activate the third electric push rod, its output end retracts, driving the push plate to move laterally, and pulls the cross frame down via the pull rod, allowing the cross arm to penetrate deep into the rectangular groove; activate the first motor to drive the lead screw to rotate, and the two moving seats move away from each other synchronously. When the guide wheel on one of the cross arms contacts the inner wall of one side of the rectangular groove, it is limited by the inner wall and rotates in conjunction with the swing rod, and the cross frame moves synchronously until the guide wheels on both cross arms contact the inner walls on both sides of the rectangular groove, then turn off the first motor; through the linkage of the first and second connecting rods, the material feeding section moves laterally synchronously, achieving centering of the material feeding section; then the output end of the third electric push rod extends, and pulls the cross frame up and the material feeding section down via the pull rod, allowing the cross arm to disengage from the rectangular groove, while ensuring that the material hopper is precisely aligned with the rectangular groove, preventing the cross arm from being submerged when concrete falls;

[0030] Step Six: Activate the second electric push rod to drive the frame to rotate and pour the concrete from the mixing drum. The concrete enters the rotating drum through the guide cylinder and falls through both ends of the distribution hopper. Activate the first electric push rod to drive the extension arm, rotating drum, and distribution hopper to rotate, ensuring that the distribution hopper is aligned with the bottom two sides of the stepped inner wall of the rectangular trough, so that the concrete falls and accumulates along the inner walls on both sides. After the bottom layer is filled, continue to rotate the distribution hopper so that the concrete slides into the rectangular trough from bottom to top along each layer of the stepped inner wall until the concrete accumulates and fills the entire rectangular trough.

[0031] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0032] 1. The present invention provides a rapid concrete crack repair device, which uses a concrete hopper straightening mechanism to perform centering adjustment, ensuring that the material feeding part is centered relative to the crack to be repaired, thereby ensuring that the repair concrete can accurately fill the crack. Simultaneously, the tie rod allows the straightening component and the material feeding part to move in opposite directions, preventing interference between them.

[0033] 2. The feeding section in this invention can adjust the feeding width. The rotation of the extension arm is driven by the first electric push rod, which enables the rotating drum to drive the distribution hopper to rotate, thereby allowing the distribution hopper to adapt to gaps of different widths and improving the flexibility of the equipment.

[0034] 3. The mixing cylinder of the present invention can mix concrete, and through the action of the second electric push rod, the mixed concrete is poured into the discharge section, and the concrete is concentrated through the action of the guide plate to prevent concrete overflow.

[0035] It should be understood that the description in the Summary of the Invention is not intended to limit the key or essential features of the embodiments of the present invention, nor is it intended to restrict the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0036] The above and other features, advantages, and aspects of the various embodiments of the present invention will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0037] Figure 1 A schematic diagram of a rapid concrete crack repair device according to an embodiment of the present invention is shown;

[0038] Figure 2 A side view of a rapid concrete crack repair device according to an embodiment of the present invention is shown;

[0039] Figure 3 A side view of the mixing cylinder of a rapid concrete crack repair device according to an embodiment of the present invention is shown in an inclined state.

[0040] Figure 4 A schematic diagram of the material distribution hopper of a rapid concrete crack repair device according to an embodiment of the present invention is shown;

[0041] Figure 5 A top view of a material distribution hopper for a rapid concrete crack repair device according to an embodiment of the present invention is shown;

[0042] Figure 6 A top view of the material distribution hopper of a rapid concrete crack repair device according to an embodiment of the present invention is shown in the rotating state.

[0043] Figure 7 A schematic diagram of a rapid concrete crack repair device according to another embodiment of the present invention is shown;

[0044] Figure 8 A side view of a rapid concrete crack repair device according to another embodiment of the present invention is shown;

[0045] Figure 9 An enlarged view of point A of a rapid concrete crack repair device according to another embodiment of the present invention is shown;

[0046] Figure 10 A structural schematic diagram of a concrete hopper straightening mechanism for a rapid concrete crack repair device according to another embodiment of the present invention is shown.

[0047] Figure 11An exploded structural schematic diagram of the concrete hopper straightening mechanism of a rapid concrete crack repair device according to another embodiment of the present invention is shown.

[0048] The attached figures are labeled as follows:

[0049] 1. Base; 2. Wheel; 3. Frame; 4. Bearing frame; 5. Mixing cylinder; 6. Gear ring; 7. Reducer; 8. Shaft; 9. Gear; 10. Second electric push rod; 11. First connecting frame; 12. Third electric push rod; 13. Guide cylinder; 14. Guide plate; 15. Second connecting frame; 16. Rotary drum; 17. Extension arm; 18. First electric push rod; 19. Distributing hopper; 20. Push plate; 21. Pull rod; 22. Mounting plate; 23. Lifting plate; 24. Swing rod; 25. Cross frame; 26. Lead screw; 27. Guide rod; 28. First motor; 29. ​​Moving seat; 30. Cross arm; 31. Guide wheel; 32. First connecting rod; 33. Second connecting rod. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0052] Example 1:

[0053] like Figure 1 , Figure 2 and Figure 3 As shown, this rapid concrete crack repair device includes a concrete mixing truck and a discharge unit. The concrete mixing truck is used to mix the concrete for repair. The discharge unit is installed on one side of the concrete mixing truck and is used to guide the concrete, and its discharge position can be controlled and changed.

[0054] refer to Figure 1 , Figure 2 and Figure 3The concrete mixing truck includes: a base 1, wheels 2, a mixing device, a second electric push rod 10, and a drive assembly. There are four wheels 2, rotatably mounted on both sides of the base 1. The wheels 2 serve as the main driving force for the equipment's movement; readily available wheel assemblies are sufficient, as this is an existing device and will not be described in detail. The mixing device is rotatably mounted on the top of the base 1. The second electric push rod 10 is rotatably mounted on the base 1, with its output end rotatably connected to the mixing device. The second electric push rod 10 drives the mixing device to rotate, pouring out the mixed concrete. The drive assembly is mounted on the base 1 and connected to the unloading section, used to drive the unloading section to move vertically.

[0055] The mixing equipment includes: a frame 3, a bearing bracket 4, a mixing cylinder 5, a gear ring 6, a reducer 7, a rotating shaft 8, and a gear 9. The frame 3 is placed on top of the base 1, and one end of the frame 3 facing the material feeding section is rotatably connected to the base 1. The output end of the second electric push rod 10 is rotatably connected to the other end of the frame 3. Activating the second electric push rod 10 allows the frame 3 to rotate around the axis at its rotatable connection. There are two bearing brackets 4, symmetrically installed on the top of the frame 3. The two ends of the mixing cylinder 5 are rotatably installed on the two bearing brackets 4, ensuring that the mixing cylinder 5 can rotate around its own axis. The mixing cylinder 5 is an existing concrete mixing device, with a flap inside. As it rotates, it can agitate the concrete raw materials inside, achieving concrete mixing. This embodiment uses a small conical mixer as an example, but it is not limited to this type; any model that meets the actual needs is acceptable. There are two gear rings 6, symmetrically mounted on the mixing cylinder 5. A reducer 7 is mounted on the frame 3. The reducer 7 is an existing device; any model that meets the requirements is acceptable. It is equipped with a drive motor, and when activated, the output end of the reducer 7 can rotate to output power. One end of the rotating shaft 8 is connected to the output end of the reducer 7, and the other end is rotatably mounted on the frame 3. There are two gears 9, each mounted on the rotating shaft 8, and each gear 9 meshes with one of the two gear rings 6. In actual use, concrete raw materials are first placed into the mixing cylinder 5. The reducer 7 is then activated to output power, causing the rotating shaft 8 to rotate. Through the rotation of the gears 9, the gear rings 6 drive the mixing cylinder 5 to rotate synchronously, mixing the raw materials to obtain the finished concrete. Then, the second electric push rod 10 is activated, causing the frame 3 to rotate along with its top components, causing the concrete in the mixing cylinder 5 to pour into the lower part of the mixing cylinder.

[0056] refer to Figures 1-6The driving component is a vertically positioned third electric push rod 12, which is mounted on the base 1. The output end of the third electric push rod 12 is connected to the feeding section via a first connecting frame 11. Activating the third electric push rod 12 drives the feeding section to move up and down. When the feeding section is aligned with the gap to be repaired, it lowers to ensure that the concrete outlet of the feeding section corresponds to the gap. The feeding section includes: a guide cylinder 13, a guide plate 14, a second connecting frame 15, a rotating drum 16, an extension arm 17, a first electric push rod 18, and a distributing hopper 19. The first connecting frame 11 is connected to the output end of the third electric push rod 12. The guide cylinder 13 is mounted at one end of the first connecting frame 11. The guide cylinder 13 is an inverted conical hollow structure with openings at both the top and bottom. Concrete flowing from top to bottom concentrates towards the center and exits from the bottom of the guide cylinder 13. The guide plate 14 is installed at the top of the guide cylinder 13. The guide plate 14 is arranged in an expanding manner from bottom to top. The concrete poured out by the mixing cylinder 5 falls on the top of the guide plate 14. With the centralized guidance of the guide plate 14, the concrete will enter the guide cylinder 13 and avoid being exposed. The top of the second connecting frame 15 is connected to the guide cylinder 13. The rotating cylinder 16 is rotatably connected to the second connecting frame 15 and the bottom end of the rotating cylinder 16 is connected to the guide cylinder 13. One end of the extension arm 17 is connected to the rotating cylinder 16. The first electric push rod 18 is rotatably connected to the second connecting frame 15, and the output end of the first electric push rod 18 is rotatably connected to the other end of the extension arm 17. Activating the first electric push rod 18 can drive the extension arm 17 to drive the rotating cylinder 16 to rotate. The middle part of the distribution hopper 19 is connected to the bottom end of the rotating drum 16. The cross-section of the distribution hopper 19 is arc-shaped. When the concrete in the guide cylinder 13 falls into the distribution hopper 19 through the rotating drum 16, the concrete falls through both ends of the distribution hopper 19. The angle of the distribution hopper 19 relative to the gap to be repaired can be changed by the first electric push rod 18, thereby changing the width range between the two sides of the distribution hopper 19. It can be adjusted according to the actual width of the gap to be repaired, so that the concrete can fall along the side wall of the gap, ensuring that the concrete gathers and accumulates from both sides towards the center of the gap until the gap is filled, avoiding the accumulation from the center of the gap, which would cause gaps to appear on the inner edge of the gap.

[0057] Example 2:

[0058] like Figure 7 and Figure 8 As shown, the difference between this embodiment and Embodiment 1 is that it also includes a straightening component. The feeding part and the straightening component together constitute a concrete hopper straightening mechanism, which is installed on the front side of the base 1. The feeding part is connected to the straightening component, and the straightening component can be controlled to center the feeding part relative to the gap to be repaired, thereby ensuring that the feeding part remains in the center position after the concrete feeding width is controlled to change.

[0059] refer to Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 The correction assembly includes: a swing rod 24, a crossbeam 25, a lead screw 26, a guide rod 27, a first motor 28, a movable seat 29, a cross arm 30, a guide wheel 31, a first connecting rod 32, and a second connecting rod 33. There are two swing rods 24, symmetrically arranged vertically. One end of the first connecting frame 11 is rotatably mounted on one end of the top swing rod 24, and the other end of the first connecting frame 11 is connected to the unloading section. The crossbeam 25 is rotatably mounted on one end of the bottom swing rod 24 and is U-shaped. The lead screw 26 is rotatably mounted inside the crossbeam 25, with threads symmetrically arranged on both sides. The first motor 28 is mounted on one end of the crossbeam 25, and its output end is connected to one end of the lead screw 26. Turning on the first motor 28 drives the lead screw 26 to rotate. There are two movable seats 29, symmetrically screwed onto the lead screw 26. When the lead screw 26 rotates, it drives the two movable seats 29 to move closer or further apart synchronously. Guide rod 27 is installed inside crossbeam 25. Two movable seats 29 are slidably connected to guide rod 27. Guide rod 27 limits the movement of movable seats 29, ensuring stable movement and preventing rotation. There are two cross arms 30, installed at the bottom ends of the two movable seats 29 respectively. There are several guide wheels 31, equidistantly installed on the opposite sides of the two cross arms 30. The bottom end of the first linkage rod 32 is fixedly installed on the upper surface of the swing rod 24 at the bottom end, and the other end slides through the swing rod 24 at the top end. There are two second linkage rods 33, symmetrically arranged relative to crossbeam 25. The bottom end of the second linkage rod 33 is fixedly installed on the upper surface of crossbeam 25, and the other end slides through the first connecting frame 11. By using the combined limiting effect of the first linkage rod 32 and the second linkage rod 33, the two swing rods 24 can be ensured to rotate synchronously and at the same angle, and the crossbeam 25 and the first connecting frame 11 can be moved laterally synchronously.

[0060] In this embodiment, the driving assembly includes: a third electric push rod 12, a push plate 20, a pull rod 21, a mounting plate 22, and a lifting plate 23. The third electric push rod 12 is mounted on the base 1 and is arranged horizontally. The push plate 20 is mounted on the output end of the third electric push rod 12, and activating the third electric push rod 12 allows the push plate 20 to move horizontally. There are two pull rods 21, symmetrically arranged vertically relative to the push plate 20, forming a V-shape. One end of the pull rod 21 is rotatably connected to the push plate 20. There are two mounting plates 22, each rotatably connected to the other end of the two pull rods 21. When the push plate 20 moves laterally, the two pull rods 21 rotate synchronously, causing the two mounting plates 22 to move closer or further apart. The two lifting plates 23 are slidably connected to the base 1, and the other ends of the two swing rods 24 are rotatably connected to the lifting plates 23. The mounting plate 22 is also connected to the lifting plates 23. This ensures that the material unloading part descends while the correction assembly rises, avoiding interference.

[0061] Furthermore, another embodiment of the present invention provides a method of using a rapid concrete crack repair device, comprising:

[0062] Step 1: Use a cutting machine to cut the damaged gap area into a rectangular groove, and chisel the inner edge of the cut rectangular groove into a stepped shape, ensuring that the depth of each groove layer is ≥3cm.

[0063] Step two: Remove all loose, hollow, oily, and rusted concrete. Use a combination of high-pressure water washing and compressed air blowing to ensure the trench is free of dust and water. Before construction, thoroughly wet the inner wall of the trench for 20 minutes until it is saturated with water and the surface is free of standing water.

[0064] Step 3: Apply a special MPC interface agent evenly to the inner wall of the rectangular groove to enhance the adhesion between the subsequent concrete and the groove wall.

[0065] Step four: Place the raw materials for making magnesium phosphate cement concrete into the mixing drum 5, turn on the reducer 7, and drive the mixing drum 5 to rotate through the transmission action of gear 9 and gear ring 6 to stir and mix the raw materials to make repair concrete.

[0066] Step 5: Move the equipment to the rectangular slot position, aligning the unloading section with the rectangular slot. Then, activate the third electric push rod 12, whose output end retracts, causing the push plate 20 to move laterally. This pulls the cross frame 25 downward via the pull rod 21, allowing the cross arm 30 to penetrate deeper into the rectangular slot. Next, activate the first motor 28 to drive the lead screw 26 to rotate, causing the two moving seats 29 to move away from each other synchronously. When the guide wheel 31 on one of the cross arms 30 contacts the inner wall of one side of the rectangular slot, it is limited by the inner wall and rotates in conjunction with the swing rod 24. The cross frame 25 moves synchronously until the guide wheels 31 on both cross arms 30 are in contact with the inner walls on both sides of the rectangular slot. Then, turn off the first motor 28. Through the linkage of the first connecting rod 32 and the second connecting rod 33, the unloading section moves laterally synchronously, achieving centering of the unloading section. Subsequently, the output end of the third electric push rod 12 extends and is pulled by the pull rod 21, causing the cross frame 25 to rise and the unloading part to fall, so that the cross arm 30 is separated from the rectangular groove. At the same time, the material distribution hopper 19 is precisely aligned with the rectangular groove to prevent the cross arm 30 from being submerged when the concrete falls and to prevent interference between components.

[0067] Step Six: Activate the second electric push rod 10 to drive the frame 3 to rotate and pour the concrete from the mixing drum 5. The concrete enters the rotating drum 16 through the guide cylinder 13 and falls through both ends of the distribution hopper 19. Activate the first electric push rod 18 to drive the extension arm 17, rotating drum 16, and distribution hopper 19 to rotate, ensuring that the distribution hopper 19 is aligned with the bottom two sides of the stepped inner wall of the rectangular trough, allowing the concrete to fall and accumulate along the inner walls on both sides. After the bottom layer is filled, continue to rotate the distribution hopper 19, allowing the concrete to slide into the rectangular trough from bottom to top along each layer of the stepped inner wall until the concrete accumulates and fills the entire rectangular trough.

[0068] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A rapid repair device for concrete cracks, characterized in that, include: Concrete hopper straightening mechanism; The concrete hopper straightening mechanism includes: a feeding section and a straightening component; the feeding section is connected to the straightening component; the feeding section is controllable to change the feeding width of the concrete; the straightening component is controllable to center the feeding section. The correction assembly includes: a first connecting frame (11), a swing rod (24), a crossbar (25), a lead screw (26), a first motor (28), a moving seat (29), a cross arm (30), a first connecting rod (32), and a second connecting rod (33); There are two swing rods (24), symmetrically distributed vertically; one end of the first connecting frame (11) is rotatably mounted on one end of the swing rod (24) at the top, and the other end of the first connecting frame (11) is connected to the unloading part; the cross frame (25) is rotatably mounted on one end of the swing rod (24) at the bottom; the lead screw (26) is rotatably mounted inside the cross frame (25), and the threads on the lead screw (26) are symmetrically arranged on both sides; the first motor (28) is mounted on one end of the cross frame (25), and its output end is connected to one end of the lead screw (26); There are two movable seats (29), which are symmetrically screwed onto the lead screw (26); there are two cross arms (30), which are respectively installed at the bottom ends of the two movable seats (29); the bottom end of the first connecting rod (32) is fixedly installed on the upper surface of the swing rod (24) located at the bottom end, and the other end slides through the swing rod (24) located at the top end; there are two second connecting rods (33), which are symmetrically arranged relative to the cross frame (25), and the bottom end of the second connecting rod (33) is fixedly installed on the upper surface of the cross frame (25), and the other end slides through the first connecting frame (11).

2. The rapid concrete crack repair device according to claim 1, characterized in that, The correction assembly also includes: a guide rod (27); The guide rod (27) is installed inside the cross frame (25), and the two movable seats (29) are slidably connected to the guide rod (27).

3. The rapid concrete crack repair device according to claim 2, characterized in that, The correction component also includes: a guide wheel (31); There are several guide wheels (31), which are installed at equal intervals on the opposite sides of the two cross arms (30).

4. The rapid concrete crack repair device according to any one of claims 1-3, characterized in that, The feeding section includes: a guide cylinder (13), a guide plate (14), a second connecting frame (15), a rotating drum (16), an extension arm (17), a first electric push rod (18), and a distributing hopper (19). The guide cylinder (13) is installed at one end of the first connecting frame (11); the guide plate (14) is installed at the top of the guide cylinder (13); the top of the second connecting frame (15) is connected to the guide cylinder (13); the rotating cylinder (16) is rotatably connected to the second connecting frame (15), and the rotating cylinder (16) is connected to the bottom end of the guide cylinder (13); one end of the extension arm (17) is connected to the rotating cylinder (16); the first electric push rod (18) is rotatably connected to the second connecting frame (15), and the output end of the first electric push rod (18) is rotatably connected to the other end of the extension arm (17); the middle part of the distributing hopper (19) is connected to the bottom end of the rotating cylinder (16).

5. The rapid concrete crack repair device according to claim 4, characterized in that, The guide plate (14) is arranged in an expanding manner from bottom to top.

6. The rapid concrete crack repair device according to claim 5, characterized in that, Also includes: Base (1), wheels (2), mixing equipment and second electric push rod (10); The mixing equipment is rotatably mounted on the top of the base (1); the second electric push rod (10) is rotatably mounted on the base (1), and its output end is rotatably connected to the mixing equipment; there are four wheels (2), which are rotatably mounted on both sides of the base (1); the concrete hopper straightening mechanism is mounted on the front side of the base (1).

7. The rapid concrete crack repair device according to claim 6, characterized in that, The mixing equipment includes: a frame (3), a bearing frame (4), a mixing cylinder (5), a gear ring (6), a reducer (7), a rotating shaft (8), and a gear (9); The frame (3) is placed on the top of the base (1), and one end of the frame (3) is rotatably connected to the base (1); the output end of the second electric push rod (10) is rotatably connected to the other end of the frame (3); there are two bearing brackets (4), which are symmetrically installed on the top of the frame (3); the two ends of the mixing cylinder (5) are rotatably installed on the two bearing brackets (4); there are two gear rings (6), which are symmetrically installed on the mixing cylinder (5); the reducer (7) is installed on the frame (3); one end of the rotating shaft (8) is connected to the output end of the reducer (7), and the other end is rotatably installed on the frame (3); there are two gears (9), which are installed on the rotating shaft (8), and the two gears (9) are meshed with the two gear rings (6) respectively.

8. The rapid concrete crack repair device according to claim 7, characterized in that, Also includes: Driver components; The drive assembly includes: a third electric push rod (12), a push plate (20), a pull rod (21), a mounting plate (22), and a lifting plate (23); The third electric push rod (12) is mounted on the base (1); the push plate (20) is mounted on the output end of the third electric push rod (12); there are two pull rods (21), which are symmetrically arranged above and below the push plate (20), and one end of the pull rod (21) is rotatably connected to the push plate (20); there are two mounting plates (22), which are rotatably connected to the other ends of the two pull rods (21); the two lifting plates (23) are slidably connected to the base (1), and the other ends of the two swing rods (24) are rotatably connected to the lifting plates (23), and the mounting plate (22) is connected to the lifting plates (23).

9. The rapid concrete crack repair device according to claim 8, characterized in that, The two pull rods (21) are arranged in a V-shape.

10. A method of using a rapid concrete crack repair device, the method being implemented based on the rapid concrete crack repair device as described in claim 8 or 9, characterized in that, include: Step 1: Use a cutting machine to cut the damaged gap area into a rectangular groove, and chisel the inner edge of the cut rectangular groove into a stepped shape, ensuring that the depth of each groove layer is ≥3cm; Step 2: Remove all loose, hollow, oily, and rusty concrete; use a combination of high-pressure water washing and compressed air blowing to ensure that there is no floating dust or standing water in the trench; before construction, fully wet the inner wall of the trench for 20 minutes until it is saturated with water and there is no standing water on the surface. Step 3: Apply a special MPC interface agent evenly to the inner wall of the rectangular groove to enhance the adhesion between the subsequent concrete and the groove wall. Step 4: Put the raw materials of each component used to make magnesium phosphate cement concrete into the mixing drum (5), turn on the reducer (7), and drive the mixing drum (5) to rotate through the transmission action of the gear (9) and the gear ring (6) to stir and mix the raw materials to make repair concrete. Step 5: Move the equipment to the rectangular slot position, aligning the unloading part with the rectangular slot; activate the third electric push rod (12), its output end retracts, driving the push plate (20) to move laterally, pulling the cross frame (25) down via the pull rod (21), so that the cross arm (30) extends into the rectangular slot; activate the first motor (28) to drive the lead screw (26) to rotate, and the two moving seats (29) move away from each other synchronously. When the guide wheel (31) on one of the cross arms (30) contacts the inner wall of one side of the rectangular slot, it is limited by the inner wall and rotates in conjunction with the swing rod (24), and the cross frame (25) rotates. The first motor (28) is shut off when the guide wheels (31) on both horizontal arms (30) are in contact with the inner walls of both sides of the rectangular groove. The material unloading section moves horizontally in sync with the first linkage rod (32) and the second linkage rod (33) to center the material unloading section. Then the output end of the third electric push rod (12) extends and is pulled by the pull rod (21) to raise the horizontal frame (25) and lower the material unloading section, so that the horizontal arm (30) is separated from the rectangular groove. At the same time, the material hopper (19) is precisely aligned with the rectangular groove to prevent the horizontal arm (30) from being submerged when the concrete falls. Step 6: Activate the second electric push rod (10) to drive the frame (3) to rotate and pour the concrete in the mixing drum (5); the concrete enters the rotating drum (16) through the guide cylinder (13) and falls through both ends of the distribution hopper (19); activate the first electric push rod (18) to drive the extension arm (17), rotating drum (16) and distribution hopper (19) to rotate, ensuring that the distribution hopper (19) is aligned with the bottom two sides of the stepped inner wall of the rectangular groove, so that the concrete falls and accumulates along the inner walls on both sides; after the bottom layer is filled, continue to rotate the distribution hopper (19) so that the concrete slides into the rectangular groove from bottom to top along the stepped inner walls of each layer until the concrete accumulates and fills the entire rectangular groove.

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