Municipal engineering concrete structure defect repairing device and method

Abstract

The invention provides a municipal engineering concrete structure defect repairing device and method, and relates to the technical field of defect repairing devices. Two first guide rods are fixed to the top end face of the base, a base is arranged on the two first guide rods in a sliding mode, and a riding box is fixed to the top end face of the base. A first hydraulic cylinder is fixed to the top end face of the base. In the aspects of operation convenience and safety, the lifting assembly adopts a double adjusting mode of a hydraulic cylinder and an electric threaded rod. The first hydraulic cylinder can achieve rapid preliminary adjustment of the height of the riding box, when finer adjustment is needed or the hydraulic cylinder breaks down, the first motor drives the first threaded rod, it is guaranteed that the operation height adapts to different working conditions, the supporting rod can effectively reduce the stress damage risk of the threaded rod, the service life of equipment is prolonged, and operation safety is improved. And meanwhile, the riding box is arranged to provide a stable working platform for operators, so that the operators can conveniently carry out operations such as concrete mixing and repairing.

Description

Technical Field

[0001] The present invention relates to the technical field of defect repair devices, and in particular to a defect repair device for a municipal engineering concrete structure and a method thereof. Background Art

[0002] Concrete structures are buildings constructed with concrete. After a period of use, they will be damaged by sun and rain, and pits and other defects will appear on the structures. At this time, repair devices are needed to repair them.

[0003] The existing repairing device is not convenient for repairing defects at high places, and is not convenient for compacting and tamping when repairing defects at high places, which affects the quality of the repaired material. Summary of the Invention

[0004] The present invention relates to a device and method for repairing defects in concrete structures of municipal engineering, which solves the problem that existing repairing devices are inconvenient to repair defects at high places, and are inconvenient to compact and tamp when repairing defects at high places, thus affecting the quality of the repaired concrete structures.

[0005] The present invention provides a device and method for repairing defects in concrete structures of municipal engineering projects, which specifically include: a base; two first guide rods are fixed to the top surface of the base, a base slides on the two first guide rods, and a passenger box is fixed to the top surface of the base; a first hydraulic cylinder is fixed to the top surface of the base, a connecting block is fixed to the protruding end of the first hydraulic cylinder, two second guide rods are welded to the top surface of the connecting block, the two second guide rods slide on the base, a first motor is fixed to the top surface of the connecting block, a first threaded rod is fixed to the output shaft of the first motor, and the first threaded rod is threadedly connected to the base.

[0006] Furthermore, two cylindrical rod-shaped support rods are welded to the top surface of the connecting block, and the upper ends of the two support rods are in contact with the base. The two support rods together constitute a protective component of the first threaded rod.

[0007] Furthermore, the first guide rod, the base, the first hydraulic cylinder, the connecting block, the second guide rod, the first motor, the first threaded rod and the support rod together constitute a lifting assembly; a storage assembly is installed on the riding box, and the storage assembly consists of a storage box, a third guide rod, a mixing rake, a second motor and a second threaded rod. A storage box is fixed on the top surface of the riding box, and concrete for repair is stored in the storage box. Two third guide rods are sliding on the storage box, and the right ends of the two third guide rods are welded to the mixing rake. The mixing rake is located in the storage box, and the mixing rake is in contact with the cement in the storage box.

[0008] Furthermore, a second motor is fixed on the storage box, a second threaded rod is fixed on the output shaft of the second motor, and the second threaded rod is threadedly connected to the mixing rake; and a cement pump for concrete supply is fixed on the storage box.

[0009] Furthermore, a repair assembly is installed on the base, which consists of a fourth guide rod, a mounting arm, a second hydraulic cylinder and a flat plate. Two fourth guide rods are fixed to the top surface of the base, and a mounting arm slides on the two fourth guide rods. A second hydraulic cylinder is fixed to the top surface of the base, and the protruding end of the second hydraulic cylinder is fixed to the bottom end surface of the mounting arm; a flat plate is welded to the right end surface of the mounting arm, and the inclination angle of the flat plate is 45 degrees.

[0010] Furthermore, a tamping assembly is installed on the mounting arm, and the tamping assembly consists of a base body, a fifth guide rod, a mounting seat, a third hydraulic cylinder, a sixth guide rod, a base plate, a spring, a third motor, a toggle block, an elastic block and a tamping block. A base body is welded on the top surface of the mounting arm, and the base body is a concave structure. Two fifth guide rods are sliding on the base body, and the protruding ends of the two fifth guide rods are fixed on the H-shaped mounting seat. A third hydraulic cylinder is fixed on the right end surface of the base body, and the protruding end of the third hydraulic cylinder is fixed on the mounting seat.

[0011] Furthermore, two sixth guide rods with stepped shaft-like structures are slid on the mounting seat, and the protruding ends of the two sixth guide rods are fixed on the base plate. A spring is sleeved on each sixth guide rod, and the left end of the spring contacts the step of the sixth guide rod, and the right end of the spring contacts the left end face of the mounting seat.

[0012] Furthermore, a third motor is fixed on the mounting seat, and a toggle block is fixed on the rotating shaft of the third motor. When the third motor rotates, the toggle block elastically contacts the left end surface of the base plate.

[0013] Furthermore, an elastic block made of rubber is adhered to the right end surface of the base plate, and a tamping block is adhered to the right end surface of the elastic block.

[0014] A method for using a defect repair device for a municipal engineering concrete structure comprises the following steps: 1. Open the first hydraulic cylinder and extend it. The extended end of the first hydraulic cylinder drives the connecting block to rise. The connecting block drives the base to slide upward along the first guide rods via the two second guide rods, thereby achieving a preliminary height adjustment of the passenger box to achieve the appropriate operating height. 2. If the height of the passenger box needs to be further raised, or if the first hydraulic cylinder is damaged, the first motor is started. The output shaft of the first motor drives the first threaded rod to rotate. Since the first threaded rod is threadedly connected to the base, the base and the passenger box will continue to adjust in height under the drive of the threads. 3. Start the second motor and make it rotate back and forth. The output shaft of the second motor drives the second threaded rod to rotate back and forth. Because the second threaded rod is threadedly connected to the mixing rake, the mixing rake moves back and forth left and right within the storage tank along the two third guide rods under the reciprocating drive of the second threaded rod, thereby fully mixing the repair concrete in the storage tank. 4. Place the leveling plate in contact with the wall surface to be repaired. Use a cement pump or other equipment to add repair concrete to the leveling plate. Activate the second hydraulic cylinder to extend it. The extended end of the second hydraulic cylinder drives the installation arm to slide upward along the two fourth guide rods. The installation arm drives the leveling plate to move, repairing the concrete into the pit on the wall surface. 5. After compacting the repaired concrete, activate the third hydraulic cylinder to extend it. The extended end of the third hydraulic cylinder drives the mounting base to the right. The mounting base drives the base plate, elastic block, and tamping block to the right via the two sixth guide rods, thus preliminarily compacting the repaired concrete. 6. Start the third motor, and its rotating shaft drives the toggle block to rotate. The toggle block elastically contacts the left end surface of the base plate. Under the action of this continuous elastic contact, the base plate will vibrate, which is transmitted to the compacting block through the elastic block, achieving continuous vibration of the compacting block, thereby fully compacting the repaired concrete; 7. After completing the repair and compaction work, turn off each motor and hydraulic cylinder in the reverse order to restore the device to its initial state for next use.

[0015] The present invention provides a device and method for repairing defects in concrete structures of municipal engineering, which have the following beneficial effects: For ease of use and safety, the lifting assembly utilizes a dual adjustment mode: a hydraulic cylinder and an electric threaded rod. The first hydraulic cylinder allows for quick, initial adjustment of the ride box's height. When finer adjustments are required or the hydraulic cylinder fails, the first electric motor drives the first threaded rod, ensuring the operating height is adapted to different working conditions. The support rod effectively reduces the risk of damage to the threaded rod, extending the equipment's lifespan and improving operational safety. The ride box also provides a stable working platform for operators, facilitating operations such as concrete mixing and repairs.

[0016] In terms of functional integration, this device integrates concrete storage, mixing, repair, and compaction functions. In the storage component, a second motor drives a second threaded rod, which drives a reciprocating mixing rake to ensure thorough mixing of the concrete in the storage tank and guarantee the quality of the repair material. A cement pump is directly connected to the storage tank, ensuring a stable supply of concrete and streamlining the operation process. The second hydraulic cylinder in the repair component drives a leveling plate, which precisely applies concrete to wall pits. The 45-degree tilt design ensures that the concrete is applied more closely to the wall surface, improving repair efficiency and quality.

[0017] The compaction assembly plays a key role in ensuring repair effectiveness and quality. The third hydraulic cylinder pushes the mounting base, compaction block, and other components for initial compaction. The third motor drives the toggle block, which, through elastic contact with the baseplate, generates continuous vibration. This allows the compaction block to deeply compact the repaired concrete, enhancing concrete density, improving the strength and durability of the repaired area, and effectively ensuring the structural stability of the repaired concrete structure. Furthermore, the coordination of the guide rods with the hydraulic cylinder, motor, and other components ensures stable and precise operation, reducing manual error, improving the automation and overall efficiency of the repair operation, and lowering labor costs, providing reliable support for the rapid and efficient repair of concrete structures in municipal engineering projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0019] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached figure: Figure 1 The figure shows an axial structural diagram of a defect repair device for a municipal engineering concrete structure according to the present invention; Figure 2 The main structural diagram of the municipal engineering concrete structure defect repair device of the present invention is shown; Figure 3 The present invention is shown Figure 2 A schematic diagram of the enlarged structure at point A; Figure 4 The present invention is shown Figure 1 Schematic diagram of the axial structure after rotation; Figure 5 The figure shows the axial structural diagram of the lifting assembly of the present invention; Figure 6 The figure shows an axial structural diagram of the storage assembly of the present invention; Figure 7 The figure shows the axial structural schematic diagram of the compacting assembly of the present invention; Figure 8 The present invention is shown Figure 7 Schematic diagram of the enlarged structure at point B.

[0021] Reference Signs List 1. Base; 2. Lifting assembly; 201. First guide rod; 202. Base; 203. First hydraulic cylinder; 204. Connecting block; 205. Second guide rod; 206. First motor; 207. First threaded rod; 208. Support rod; 3. Passenger box; 4. Storage assembly; 401. Storage box; 402. Third guide rod; 403. Mixing rake; 404. Second motor; 405. Second threaded rod; 5. Repair assembly; 501. Fourth guide rod; 502. Mounting arm; 503. Second hydraulic cylinder; 504. Leveling plate; 6. Tamping assembly; 601. Base; 602. Fifth guide rod; 603. Mounting seat; 604. Third hydraulic cylinder; 605. Sixth guide rod; 606. Base plate; 607. Spring; 608. Third motor; 609. Toggle block; 610. Elastic block; 611. Tamping block; 7. Cement pump DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figures 1 to 8 : The present invention proposes a device and method for repairing defects in concrete structures of municipal engineering, comprising: a base 1; two first guide rods 201 are fixed to the top surface of the base 1, a base 202 slides on the two first guide rods 201, and a riding box 3 is fixed to the top surface of the base 202; a first hydraulic cylinder 203 is fixed to the top surface of the base 1, a connecting block 204 is fixed to the protruding end of the first hydraulic cylinder 203, two second guide rods 205 are welded to the top surface of the connecting block 204, the two second guide rods 205 slide on the base 202, a first motor 206 is fixed to the top surface of the connecting block 204, and the first motor A first threaded rod 207 is fixed on the output shaft of the motor 206, and the first threaded rod 207 is threadedly connected to the base 202. When adjusting the height of the passenger box 3, the first hydraulic cylinder 203 is driven to extend, and the first hydraulic cylinder 203 drives the base 202 to adjust the height, thereby realizing the height adjustment of the passenger box 3; when it is necessary to further increase the height of the passenger box 3 or when the first hydraulic cylinder 203 is damaged, the first motor 206 is driven to rotate, and the first motor 206 drives the first threaded rod 207 to rotate. Under the threaded drive of the first threaded rod 207, the height adjustment of the base 202 and the passenger box 3 can also be realized.

[0024] Among them, two cylindrical rod-shaped support rods 208 are welded to the top surface of the connecting block 204, and the upper ends of the two support rods 208 are in contact with the base 202. The two support rods 208 together constitute a protective component of the first threaded rod 207. During use, the support of the two support rods 208 can reduce the chance of the first threaded rod 207 being damaged by force.

[0025] Among them, the first guide rod 201, the base 202, the first hydraulic cylinder 203, the connecting block 204, the second guide rod 205, the first motor 206, the first threaded rod 207 and the support rod 208 together constitute the lifting assembly 2; a storage assembly 4 is installed on the riding box 3, and the storage assembly 4 consists of a storage box 401, a third guide rod 402, a mixing rake 403, a second motor 404 and a second threaded rod 405. A storage box 401 is fixed on the top surface of the riding box 3, and concrete for repair is stored in the storage box 401. Two third guide rods 402 are sliding on the storage box 401, and the right ends of the two third guide rods 402 are welded to the mixing rake 403. The mixing rake 403 is located in the storage box 401, and the mixing rake 403 is in contact with the cement in the storage box 401.

[0026] Among them, a second motor 404 is fixed on the storage box 401, and a second threaded rod 405 is fixed on the output shaft of the second motor 404, and the second threaded rod 405 is threadedly connected to the mixing rake 403; a cement pump 7 for concrete supply is fixed on the storage box 401. When the concrete in the storage box 401 needs to be mixed, the second motor 404 is driven to rotate reciprocally. The second motor 404 drives the second threaded rod 405 to rotate reciprocally. Under the reciprocating drive of the second threaded rod 405, the mixing rake 403 can be moved back and forth left and right, and the mixing of the repair concrete is achieved.

[0027] Among them, a repair component 5 is installed on the base 1, and the repair component 5 consists of a fourth guide rod 501, a mounting arm 502, a second hydraulic cylinder 503 and a leveling plate 504. Two fourth guide rods 501 are fixed to the top surface of the base 1, and the mounting arm 502 slides on the two fourth guide rods 501. A second hydraulic cylinder 503 is fixed to the top surface of the base 1, and the protruding end of the second hydraulic cylinder 503 is fixed to the bottom end surface of the mounting arm 502; a leveling plate 504 is welded to the right end surface of the mounting arm 502, and the inclination angle of the leveling plate 504 is 45 degrees. During use, the leveling plate 504 is brought into contact with the wall, and concrete for repair is added to the leveling plate 504 through the cement pump 7, driving the second hydraulic cylinder 503 and extending. Driven by the second hydraulic cylinder 503, the leveling plate 504 can repair the pits on the wall with cement.

[0028] Among them, a tamping assembly 6 is installed on the mounting arm 502, and the tamping assembly 6 consists of a base body 601, a fifth guide rod 602, a mounting seat 603, a third hydraulic cylinder 604, a sixth guide rod 605, a base plate 606, a spring 607, a third motor 608, a toggle block 609, an elastic block 610 and a tamping block 611. A base body 601 is welded to the top surface of the mounting arm 502. The base body 601 is a concave structure. Two fifth guide rods 602 are sliding on the base body 601. The protruding ends of the two fifth guide rods 602 are fixed on the H-shaped mounting seat 603. A third hydraulic cylinder 604 is fixed on the right end face of the base body 601. The protruding end of the third hydraulic cylinder 604 is fixed on the mounting seat 603.

[0029] Among them, two sixth guide rods 605 with stepped shaft structures are slid on the mounting seat 603, and the protruding ends of the two sixth guide rods 605 are fixed on the base plate 606. A spring 607 is sleeved on each sixth guide rod 605, and the left end of the spring 607 contacts the step of the sixth guide rod 605, and the right end of the spring 607 contacts the left end face of the mounting seat 603.

[0030] A third motor 608 is fixed on the mounting base 603 , and a toggle block 609 is fixed on the rotating shaft of the third motor 608 . When the third motor 608 rotates, the toggle block 609 elastically contacts the left end surface of the base plate 606 .

[0031] Among them, an elastic block 610 made of rubber material is adhered to the right end surface of the substrate 606, and a tamping block 611 is adhered to the right end surface of the elastic block 610. When the repaired concrete is compacted, the third hydraulic cylinder 604 is driven to extend, and the third hydraulic cylinder 604 drives the mounting seat 603, the substrate 606, the elastic block 610 and the tamping block 611 to move to the right to complete the compaction of the repaired concrete, and drives the third motor 608 to rotate. The third motor 608 drives the toggle block 609 to rotate. Under the action of continuous elastic contact between the toggle block 609 and the substrate 606, continuous vibration of the substrate 606, the elastic block 610 and the tamping block 611 can be achieved, and the tamping of the repaired concrete can be achieved through the continuous vibration of the substrate 606, the elastic block 610 and the tamping block 611.

[0032] A method for using a defect repair device for a municipal engineering concrete structure comprises the following steps: 1. Open the first hydraulic cylinder 203 and extend it. The extended end of the first hydraulic cylinder 203 drives the connecting block 204 upward. The connecting block 204 drives the base 202 to slide upward along the first guide rods 201 via the two second guide rods 205, thereby achieving a preliminary height adjustment of the passenger box 3 to achieve a suitable operating height. 2. If the height of the passenger box 3 needs to be further raised, or if the first hydraulic cylinder 203 is damaged, the first motor 206 is started. The output shaft of the first motor 206 drives the first threaded rod 207 to rotate. Since the first threaded rod 207 is threadedly connected to the base 202, the base 202 and the passenger box 3 will continue to adjust their height under the drive of the threads. 3. Start the second motor 404 and rotate it back and forth. The output shaft of the second motor 404 drives the second threaded rod 405 to rotate back and forth. Since the second threaded rod 405 is threadedly connected to the mixing rake 403, the mixing rake 403 moves back and forth in the storage box 401 along the two third guide rods 402 under the reciprocating drive of the second threaded rod 405, thereby fully mixing the repair concrete in the storage box 401. 4. Place the leveling plate 504 in contact with the wall surface to be repaired. Use a cement pump 7 or other device to add repair concrete to the leveling plate 504. Activate the second hydraulic cylinder 503 to extend it. The extended end of the second hydraulic cylinder 503 drives the mounting arm 502 to slide upward along the two fourth guide rods 501. The mounting arm 502 drives the leveling plate 504 to move, repairing the concrete into the depression on the wall surface. 5. After compacting the repaired concrete, the third hydraulic cylinder 604 is activated and extended. The extended end of the third hydraulic cylinder 604 drives the mounting base 603 to move rightward. The mounting base 603 drives the base plate 606, the elastic block 610, and the tamping block 611 to move rightward via the two sixth guide rods 605, thereby preliminarily compacting the repaired concrete. 6. Start the third motor 608, and its rotating shaft drives the toggle block 609 to rotate. The toggle block 609 elastically contacts the left end surface of the base plate 606. Under the action of this continuous elastic contact, the base plate 606 will generate vibration, which is transmitted to the compacting block 611 through the elastic block 610, achieving continuous vibration of the compacting block 611, thereby fully compacting the repaired concrete; 7. After completing the repair and compaction work, turn off each motor and hydraulic cylinder in the reverse order to restore the device to its initial state for next use.

[0033] The working principle of this embodiment is as follows: The first hydraulic cylinder 203 is turned on to extend it, and the extended end of the first hydraulic cylinder 203 drives the connecting block 204 to rise, and the connecting block 204 drives the base 202 to slide upward along the first guide rod 201 through the two second guide rods 205, thereby achieving a preliminary adjustment of the height of the riding box 3 to achieve a suitable operating height; if the height of the riding box 3 needs to be further increased, or if the first hydraulic cylinder 203 is damaged, the first motor 206 is started, and the output shaft of the first motor 206 drives the first threaded rod 207 to rotate. The threaded rod 207 is threadedly connected to the base 202. Under the thread drive, the base 202 and the riding box 3 will continue to adjust their heights. The second motor 404 is started to rotate back and forth. The output shaft of the second motor 404 drives the second threaded rod 405 to rotate back and forth. Because the second threaded rod 405 is threadedly connected to the mixing rake 403, under the reciprocating drive of the second threaded rod 405, the mixing rake 403 will move back and forth left and right in the storage box 401 along the two third guide rods 402, thereby mixing the repair concrete in the storage box 401. Mix thoroughly; bring the leveling plate 504 into contact with the wall surface to be repaired, and add repair concrete to the leveling plate 504 through equipment such as a cement pump 7; start the second hydraulic cylinder 503 to extend it, and the extended end of the second hydraulic cylinder 503 drives the mounting arm 502 to slide upward along the two fourth guide rods 501, and the mounting arm 502 drives the leveling plate 504 to move, repairing the concrete to the pit on the wall surface; after compacting the repaired concrete, start the third hydraulic cylinder 604 to extend it, and the extended end of the third hydraulic cylinder 604 drives the mounting base 603 to the right The mounting base 603 moves rightward via the two sixth guide rods 605, driving the base plate 606, the elastic block 610, and the tamping block 611 to perform preliminary compaction on the repaired concrete. The third motor 608 is activated, and its rotating shaft drives the toggle block 609 to rotate. The toggle block 609 elastically contacts the left end face of the base plate 606. Under the action of this continuous elastic contact, the base plate 606 generates vibration, which is transmitted to the tamping block 611 via the elastic block 610, achieving continuous vibration of the tamping block 611, thereby fully compacting the repaired concrete. After completing the repair and compaction work, turn off each motor and hydraulic cylinder in the reverse order to restore the device to its original state for next use.

Claims

1. A defect repair device for concrete structures in municipal engineering, characterized in that: include: A base (1); two first guide rods (201) are fixed to the top surface of the base (1); a base (202) slides on the two first guide rods (201); a passenger box (3) is fixed to the top surface of the base (202); a first hydraulic cylinder (203) is fixed to the top surface of the base (1); a connecting block (204) is fixed to the protruding end of the first hydraulic cylinder (203); two second guide rods (205) are welded to the top surface of the connecting block (204); the two second guide rods (205) slide on the base (202); a first motor (206) is fixed to the top surface of the connecting block (204); a first threaded rod (207) is fixed to the output shaft of the first motor (206); and the first threaded rod (207) is threadedly connected to the base (202).

2. A municipal engineering concrete structure defect repair device according to claim 1, characterized in that: Two cylindrical rod-shaped support rods (208) are welded to the top surface of the connecting block (204), and the upper ends of the two support rods (208) are in contact with the base (202). The two support rods (208) together constitute a protective component of the first threaded rod (207).

3. A municipal engineering concrete structure defect repair device according to claim 2, characterized in that: The first guide rod (201), the base (202), the first hydraulic cylinder (203), the connecting block (204), the second guide rod (205), the first motor (206), the first threaded rod (207) and the support rod (208) together constitute a lifting assembly (2); a storage assembly (4) is installed on the riding box (3), and the storage assembly (4) is composed of a storage box (401), a third guide rod (402), a mixing rake (403), a second motor (404) and a second threaded rod (405); a storage box (401) is fixed to the top surface of the riding box (3), and concrete for repair is stored in the storage box (401); two third guide rods (402) are slidably mounted on the storage box (401), and the right ends of the two third guide rods (402) are welded to the mixing rake (403); the mixing rake (403) is located in the storage box (401), and the mixing rake (403) is in contact with the cement in the storage box (401).

4. A municipal engineering concrete structure defect repair device according to claim 3, characterized in that: A second motor (404) is fixed to the storage box (401), a second threaded rod (405) is fixed to the output shaft of the second motor (404), and the second threaded rod (405) is threadedly connected to the mixing rake (403); a cement pump (7) for supplying concrete is fixed to the storage box (401).

5. A municipal engineering concrete structure defect repair device according to claim 4, characterized in that: A repair assembly (5) is installed on the base (1), and the repair assembly (5) is composed of a fourth guide rod (501), a mounting arm (502), a second hydraulic cylinder (503) and a flat plate (504). Two fourth guide rods (501) are fixed to the top surface of the base (1), and the mounting arms (502) slide on the two fourth guide rods (501). A second hydraulic cylinder (503) is fixed to the top surface of the base (1), and the extended end of the second hydraulic cylinder (503) is fixed to the bottom end surface of the mounting arm (502); a flat plate (504) is welded to the right end surface of the mounting arm (502), and the inclination angle of the flat plate (504) is 45 degrees.

6. A municipal engineering concrete structure defect repair device according to claim 5, characterized in that: A tamping assembly (6) is mounted on the mounting arm (502). The tamping assembly (6) is composed of a base (601), a fifth guide rod (602), a mounting seat (603), a third hydraulic cylinder (604), a sixth guide rod (605), a base plate (606), a spring (607), a third motor (608), a toggle block (609), an elastic block (610), and a tamping block (611). A base (601) is welded to the top end surface of the mounting arm (502). The base (601) is a concave structure. Two fifth guide rods (602) slide on the base (601). The protruding ends of the two fifth guide rods (602) are fixed to the H-shaped mounting seat (603). A third hydraulic cylinder (604) is fixed to the right end surface of the base (601). The protruding end of the third hydraulic cylinder (604) is fixed to the mounting seat (603).

7. A municipal engineering concrete structure defect repair device according to claim 6, characterized in that: Two sixth guide rods (605) with stepped shaft structures are slidably mounted on the mounting seat (603). The protruding ends of the two sixth guide rods (605) are fixed on the base plate (606). A spring (607) is sleeved on each sixth guide rod (605). The left end of the spring (607) contacts the step of the sixth guide rod (605), and the right end of the spring (607) contacts the left end face of the mounting seat (603).

8. A municipal engineering concrete structure defect repair device according to claim 7, characterized in that: A third motor (608) is fixed on the mounting seat (603), and a toggle block (609) is fixed on the rotating shaft of the third motor (608). When the third motor (608) rotates, the toggle block (609) elastically contacts the left end surface of the base plate (606).

9. A municipal engineering concrete structure defect repair device according to claim 8, characterized in that: An elastic block (610) made of rubber is adhered to the right end surface of the base plate (606), and a tamping block (611) is adhered to the right end surface of the elastic block (610).

10. The method for using the municipal engineering concrete structure defect repair device according to claim 9, characterized in that: The following steps are involved:

1. The first hydraulic cylinder (203) is opened and extended, and the extended end of the first hydraulic cylinder (203) drives the connecting block (204) to rise, and the connecting block (204) drives the base (202) to slide upward along the first guide rod (201) through the two second guide rods (205), thereby achieving a preliminary adjustment of the height of the riding box (3) to achieve a suitable operating height; 2. If the height of the passenger box (3) needs to be further increased, or if the first hydraulic cylinder (203) is damaged, the first motor (206) is started, and the output shaft of the first motor (206) drives the first threaded rod (207) to rotate. Since the first threaded rod (207) is threadedly connected to the base (202), the base (202) and the passenger box (3) will continue to adjust their heights under the drive of the thread; 3. Start the second motor (404) to make it reciprocate. The output shaft of the second motor (404) drives the second threaded rod (405) to reciprocate. Since the second threaded rod (405) is threadedly connected to the mixing rake (403), under the reciprocating drive of the second threaded rod (405), the mixing rake (403) moves back and forth in the storage box (401) along the two third guide rods (402), thereby fully mixing the repair concrete in the storage box (401); 4. The leveling plate (504) is brought into contact with the wall surface to be repaired, and concrete for repair is added to the leveling plate (504) by means of a cement pump (7) or other equipment. The second hydraulic cylinder (503) is started to extend, and the extended end of the second hydraulic cylinder (503) drives the mounting arm (502) to slide upward along the two fourth guide rods (501). The mounting arm (502) drives the leveling plate (504) to move, and the concrete is repaired to the concave portion on the wall surface; 5. After compacting the repaired concrete, the third hydraulic cylinder (604) is activated to extend. The extended end of the third hydraulic cylinder (604) drives the mounting seat (603) to move rightward. The mounting seat (603) drives the base plate (606), the elastic block (610) and the compacting block (611) to move rightward through the two sixth guide rods (605), thereby performing preliminary compaction on the repaired concrete.

6. Start the third motor (608), and its rotating shaft drives the toggle block (609) to rotate. The toggle block (609) is in elastic contact with the left end surface of the base plate (606). Under the action of this continuous elastic contact, the base plate (606) will generate vibration, which is transmitted to the tamping block (611) through the elastic block (610), thereby achieving continuous vibration of the tamping block (611), thereby fully tamping the repaired concrete; 7. After completing the repair and compaction work, turn off each motor and hydraulic cylinder in the reverse order to restore the device to its initial state for next use.

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