Highway bridge engineering construction crack repairing device
By designing a crack repair device for highway bridge construction, which utilizes a cleaning roller to remove dust, a peristaltic pump to deliver resin, and an expansion joint for adaptive repair, the device solves the problems of low efficiency and unreliable quality in existing technologies, achieving a highly efficient and uniform crack repair effect.
Patent Information
- Application Number
- CN202511444622.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-10
- Publication Date
- 2025-11-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing methods for repairing cracks in highway bridge construction are inefficient and cannot guarantee quality. They are also highly dependent on the technical skills of construction workers and cannot meet the demand for efficient repair of large-area cracks.
A crack repair device for highway bridge construction was designed, comprising a cleaning structure, a lower repair structure, and a vertical repair structure. The device uses a drive motor to drive a cleaning roller to clean the dust in the crack, a peristaltic pump to deliver acrylic resin for point filling, and an adaptive repair mechanism for inclined walls is achieved through a telescopic device and a gear system.
It improved construction efficiency, ensured the uniformity and reliability of repair quality, adapted to different road conditions, and achieved large-scale and efficient crack repair.
Smart Images

Figure CN120989980A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of road repair technology, specifically to a device for repairing cracks in highway bridge construction. Background Technology
[0002] As an important component of modern transportation infrastructure, highway bridges are directly related to the safety and reliability of transportation due to their construction quality and service life. However, during the construction of highway bridges, cracks often occur due to various factors, such as concrete shrinkage, temperature changes, load effects, and improper construction techniques. These cracks not only affect the aesthetics of the bridge, but more importantly, they reduce the overall strength and durability of the structure, leading to serious problems such as water seepage, steel corrosion, and concrete spalling. This shortens the service life of the bridge, increases maintenance costs, and may even cause safety accidents.
[0003] Traditional crack repair methods mostly rely on manual operation, which is inefficient and the repair quality is greatly affected by the technical level of the construction personnel, making it difficult to guarantee the uniformity and reliability of the repair effect. At the same time, traditional crack repair methods usually require a long construction period, especially when repairing large-area cracks, resulting in low construction efficiency and affecting the overall construction progress of the bridge. Therefore, those skilled in the art provide a crack repair device for highway bridge engineering construction to solve the problems mentioned in the background art. Summary of the Invention
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this invention provides a device for repairing cracks in highway bridge construction, which solves the problems of low efficiency and unreliable quality in existing construction methods.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: a crack repair device for highway bridge construction, comprising a base plate, a storage tank fixedly connected to the center of the upper end face of the base plate near the front side, a lower repair structure provided at the center of the upper end face of the base plate behind the storage tank, a cleaning structure fixedly connected to the center of the front side wall of the base plate, and a vertical repair structure fixedly connected to the center of the upper end face of the base plate near the rear edge.
[0008] The vertical repair structure includes two slide rails, the lower ends of which are fixedly connected to the upper surface of the base plate. A second telescopic device is fixedly connected to the upper surface of the base plate between the two slide rails. A slide plate is fixedly connected to the output end of the second telescopic device. The two ends of the slide plate are slidably connected to the inner sidewalls of the two slide rails. A connecting plate is fixedly connected to the center of the upper surface of the slide plate. A connecting body is fixedly connected to the upper end of the connecting plate. A rotating motor is installed inside the rear sidewall of the connecting body. A driving gear is fixedly connected to the output end of the rotating motor. An adjustment structure is movably connected to one side wall of the connecting body. A driven gear is fixedly connected to the center of the rear sidewall of the adjustment structure. The driven gear and the driving gear mesh with each other.
[0009] Preferably, the adjustment structure includes an adjustment plate, with fixed plates fixedly connected to the center of one side wall of the adjustment plate near the front and rear sides respectively. First telescopic devices are fixedly connected to the upper surfaces of the two fixed plates respectively. A vertical frame is fixedly connected to the output ends of the two first telescopic devices. An injection pipe is fixedly connected to the center of the upper surface of the vertical frame. A small delivery pump is fixedly connected to the upper surface of the vertical frame on one side of the injection pipe. The output end of the small delivery pump passes through the side wall of the injection pipe and leads to the interior. A transmission pipe is fixedly connected to the input end of the vertical frame. The other end of the transmission pipe passes through the side wall of the storage tank and leads to the interior.
[0010] Preferably, the lower repair structure includes a peristaltic pump, the lower end of which is fixedly connected to the center of the upper end face of the base plate. The input end of the peristaltic pump penetrates the side wall of the storage tank and leads to the interior. A lower pressure plate is provided at the center of the lower end face of the base plate below the peristaltic pump. Fifth telescopic devices are fixedly connected to the center of the upper end face of the lower pressure plate near its two side edges. The upper ends of the two fifth telescopic devices are fixedly connected to the lower end face of the base plate. A square frame plate is provided at the lower end of the lower pressure plate. Sliding rods are provided at the center of the upper end face of the square frame plate near its two side edges. The upper ends of the sliding rods are fixedly connected to the lower end face of the lower pressure plate. Springs are respectively sleeved on the side walls of the two sliding rods. The upper and lower ends of the two springs are respectively fixedly connected to the lower end face of the lower pressure plate and the upper end face of the square frame plate. The lower ends of the two sliding rods pass through the upper end face of the square frame plate and lead to the interior. A fourth telescopic device is fixedly connected to the lower end face of the middle base plate of the lower pressure plate. An injection head is fixedly connected to the output end of the fourth telescopic device. The output end of the peristaltic pump passes through the upper end face of the base plate and the side wall of the injection head and leads to the interior of the injection head.
[0011] Preferably, the cleaning structure includes a fixed frame. Connecting rods are fixedly connected to the center of the rear sidewall of the fixed frame near both sides. The other ends of the connecting rods are fixedly connected to the front sidewall of the base plate. Electric telescopic devices are fixedly connected to the center of the upper surface of the fixed frame near both sides. The output ends of the two electric telescopic devices pass through the upper surface of the fixed frame and lead to the lower end, and their ends are fixedly connected to a lower connecting frame. A cleaning roller is provided inside the lower connecting frame. The two ends of the cleaning roller are rotatably connected to the two inner sidewalls of the lower connecting frame. A drive motor is fixedly connected to the center of one sidewall of the lower connecting frame. The output end of the drive motor passes through the sidewall of the lower connecting frame and leads to the interior, and its end is fixedly connected to one end of the cleaning roller.
[0012] Preferably, cameras are fixedly connected to the lower end surfaces of the base plates on both sides of the fourth telescopic device.
[0013] Preferably, a stirring motor is provided at the center of the upper end face of the storage tank, the output end of the stirring motor passes through the upper end face of the storage tank and leads to the interior, and a stirring shaft is fixedly connected to the end of the stirring motor.
[0014] Preferably, two handles are fixedly connected to the rear side wall of the base plate, and the two handles are fixedly connected to each other by two crossbars. A control panel is fixedly connected to the front side wall of the lower crossbar.
[0015] Preferably, the bottom surface of the base plate is fixedly connected to four diagonal corners at the center of the lower end face.
[0016] (III) Beneficial Effects
[0017] This invention provides a device for repairing cracks in highway bridge construction. It has the following beneficial effects:
[0018] 1. In this invention, by setting up a cleaning structure, the cleaning roller inside the lower connecting frame is driven by a drive motor to rotate rapidly during use. During the rotation, dust and sand particles in the cracks are rotated and swept away, providing a certain foundation for subsequent filling of the gaps. At the same time, the lower connecting frame can be raised and lowered by the extension and retraction control of two electric telescopic devices, making it suitable for use in different road conditions.
[0019] 2. In this invention, by setting up a lower repair structure, during use, a peristaltic pump delivers acrylic resin from the storage tank to the injection head. Simultaneously, two fifth telescopic devices control the lower pressure plate for pressing. During the pressing process, the lower end of the frame plate first contacts the ground, and the ground feedback provides support while compressing the two springs. At the same time, two sliding rods slide inside the upper surface of the frame plate, thereby achieving more stable pressure and facilitating subsequent gap filling. When filling the gap, the fourth telescopic device drives the injection head to move up and down, and with the help of two cameras, more accurate point filling can be achieved. When the crack area is large, acrylic resin can be uniformly poured into the middle of the frame plate to achieve large-area filling, resulting in high efficiency and convenient operation.
[0020] 3. In this invention, by setting up a vertical repair structure, during use, the second telescopic device drives the slide plate to slide on the inner sidewalls of the two slide rails. At the same time, by utilizing the movable connection between the connecting body and the adjusting plate, the rotating motor drives the active gear to rotate while meshing with the driven gear, which can adjust the upward and downward tilt angle between the adjusting plate and the connecting body, thereby enabling the filling of gaps in inclined walls. Furthermore, under the action of the two first telescopic devices, the height of the injection pipe can also be adjusted when filling gaps, so that the whole can adaptively adjust in real time according to the condition of the wall during use, which is highly efficient and can maintain a single posture for a long time, providing convenience for filling gaps. Attached Figure Description
[0021] Figure 1 This is an isometric view of the overall structure of the present invention;
[0022] Figure 2 This is a front view of the present invention;
[0023] Figure 3 This is an axonometric view from the lower side in this invention;
[0024] Figure 4 for Figure 3 Enlarged view of point A in the middle;
[0025] Figure 5 This is an isometric view of the connection between the square frame plate and the lower pressure plate in this invention;
[0026] Figure 6 This is an isometric view of the vertical repair structure in this invention.
[0027] The components include: 1. Base plate; 2. Control panel; 3. Horizontal bar; 4. Handle; 5. Vertical repair structure; 501. Slide rail; 502. Transmission pipe; 503. First telescopic device; 504. Injection pipe; 505. Fixing plate; 506. Small delivery pump; 507. Vertical frame; 508. Connecting body; 509. Second telescopic device; 510. Connecting plate; 511. Rotating motor; 512. Slide plate; 513. Drive gear; 514. Driven gear; 6. Lower repair structure. 601. Peristaltic pump; 602. Square frame plate; 603. Lower pressure plate; 604. Camera; 605. Fourth telescopic device; 606. Injection head; 607. Fifth telescopic device; 608. Sliding rod; 609. Spring; 7. Stirring motor; 8. Storage tank; 9. Cleaning structure; 901. Fixed frame; 902. Lower connecting frame; 903. Cleaning roller; 904. Connecting rod; 905. Electric telescopic device; 906. Drive motor; 10. Self-locking casters. Detailed Implementation
[0028] 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.
[0029] Example 1:
[0030] like Figure 1-6 As shown, this embodiment of the invention provides a road bridge construction crack repair device, including a base plate 1, a storage tank 8 fixedly connected to the center of the upper end face of the base plate 1 near the front side, a lower repair structure 6 provided at the center of the upper end face of the base plate 1 behind the storage tank 8, a cleaning structure 9 fixedly connected to the center of the front side wall of the base plate 1, and a vertical repair structure 5 fixedly connected to the center of the upper end face of the base plate 1 near the rear edge.
[0031] The vertical repair structure 5 includes two slide rails 501. The lower ends of the two slide rails 501 are fixedly connected to the upper surface of the base plate 1. A second telescopic device 509 is fixedly connected to the upper surface of the base plate 1 between the two slide rails 501. A slide plate 512 is fixedly connected to the output end of the second telescopic device 509. The two ends of the slide plate 512 are slidably connected to the inner sidewalls of the two slide rails 501. A connecting plate 510 is fixedly connected to the center of the upper surface of the slide plate 512. A connecting body 508 is fixedly connected to the upper end of the connecting plate 510. A rotating motor 511 is installed inside the rear sidewall of the connecting body 508. A driving gear 513 is fixedly connected to the output end of the rotating motor 511. An adjustment structure is movably connected to one side wall of the connecting body 508. A driven gear 514 is fixedly connected to the center of the rear sidewall of the adjustment structure. The driven gear 514 and the driving gear 513 mesh with each other.
[0032] The adjustment structure includes an adjustment plate. Fixed plates 505 are fixedly connected to the center of one side wall of the adjustment plate, near the front and rear sides. First telescopic devices 503 are fixedly connected to the upper surfaces of the two fixed plates 505. The output ends of the two first telescopic devices 503 are jointly fixedly connected to a vertical frame 507. An injection pipe 504 is fixedly connected to the center of the upper surface of the vertical frame 507. A small delivery pump 506 is fixedly connected to the upper surface of the vertical frame 507 on one side of the injection pipe 504. The output end of the small delivery pump 506 passes through the side wall of the injection pipe 504 and leads to the interior. A transmission pipe 502 is fixedly connected to the input end of the vertical frame 507. The other end of the transmission pipe 502 passes through the side wall of the storage tank 8 and leads to the interior. During use, the first... The two telescopic devices 509 drive the slide plate 512 to slide on the inner sidewalls of the two slide rails 501. At the same time, the connecting body 508 and the adjusting plate are movably connected. When the rotating motor 511 drives the driving gear 513 to rotate, it meshes with the driven gear 514, which can adjust the upward and downward tilt angle between the adjusting plate and the connecting body 508. This allows for filling gaps in inclined walls. Furthermore, under the action of the two first telescopic devices 503, the height of the injection pipe 504 can also be adjusted when filling gaps. This allows the whole system to adapt to the wall conditions in real time during use, resulting in high efficiency. It can also maintain a single posture for a long time, providing convenience for filling gaps.
[0033] The lower repair structure 6 includes a peristaltic pump 601. The lower end of the peristaltic pump 601 is fixedly connected to the center of the upper end face of the base plate 1. The input end of the peristaltic pump 601 penetrates the side wall of the storage tank 8 and leads to the interior. A lower pressure plate 603 is provided at the center of the lower end face of the base plate 1 below the peristaltic pump 601. Fifth telescopic devices 607 are fixedly connected to the center of the upper end face of the lower pressure plate 603 near the two side edges. The upper ends of the two fifth telescopic devices 607 are fixedly connected to the lower end face of the base plate 1. A square frame plate 602 is provided at the lower end of the lower pressure plate 603. Sliding rods 608 are respectively provided at the center of the upper end face of the frame plate 602 near the two side edges. The upper ends of the two sliding rods 608 are respectively fixedly connected to the lower end face of the lower pressure plate 603. Springs 609 are respectively sleeved on the side walls of the two sliding rods 608. The upper and lower ends of the two springs 609 are respectively fixedly connected to the lower end face of the lower pressure plate 603 and the upper end face of the frame plate 602. The lower ends of the two sliding rods 608 pass through the upper end face of the frame plate 602 and lead to the interior. A fixed connection is provided on the lower end face of the middle bottom plate 1 of the lower pressure plate 603. The fourth telescopic device 605 has an injection head 606 fixedly connected to its output end. The output end of the peristaltic pump 601 passes through the upper end face of the base plate 1 and the side wall of the injection head 606, leading to the interior of the injection head 606. During use, the peristaltic pump 601 transports the acrylic resin inside the storage tank 8 to the interior of the injection head 606. Simultaneously, the two fifth telescopic devices 607 control the lower pressure plate 603 to perform downward pressing. During the pressing process, the lower end of the frame plate 602 first contacts the ground, and the supporting force fed back from the ground... Simultaneously, the two springs 609 are compressed, and the two sliding rods 608 slide inside the upper surface of the frame plate 602, thereby achieving more stable pressing and facilitating subsequent gap filling. When filling the gap, the injection head 606 is driven to move up and down by the fourth telescopic device 605, and with the help of the two cameras 604, more accurate point filling can be achieved. When the crack area is large, acrylic resin can be uniformly poured into the middle of the frame plate 602 to achieve large-area filling, achieving high efficiency and convenient operation.
[0034] The cleaning structure 9 includes a fixed frame 901. Connecting rods 904 are fixedly connected to the center of the rear side wall of the fixed frame 901 near both sides. The other ends of the connecting rods 904 are fixedly connected to the front side wall of the base plate 1. Electric telescopic devices 905 are fixedly connected to the center of the upper surface of the fixed frame 901 near both edges. The output ends of the two electric telescopic devices 905 pass through the upper surface of the fixed frame 901 and lead to the lower end, and are jointly fixedly connected to a lower connecting frame 902. A cleaning roller 903 is disposed inside the lower connecting frame 902, and both ends of the cleaning roller 903 are rotatably connected to the lower connecting frame 902. On the two inner side walls, a drive motor 906 is fixedly connected to the center of one side wall of the lower connecting frame 902. The output end of the drive motor 906 passes through the side wall of the lower connecting frame 902 and leads to the interior, and its end is fixedly connected to one end of the cleaning roller 903. In use, the drive motor 906 drives the cleaning roller 903 inside the lower connecting frame 902 to rotate rapidly. During the rotation, the dust and sand particles in the crack are rotated and swept away, providing a certain paving for subsequent filling of the gap. At the same time, the lower connecting frame 902 can be raised and lowered by the extension and retraction control of two electric telescopic devices 905, which can be used in different road conditions.
[0035] Cameras 604 are fixedly connected to the lower end surfaces of the base plates 1 on both sides of the fourth telescopic device 605. A stirring motor 7 is installed at the center of the upper end surface of the storage tank 8. The output end of the stirring motor 7 passes through the upper end surface of the storage tank 8 and leads to the interior. A stirring shaft is fixedly connected to the end. Two handles 4 are fixedly connected to the rear side wall of the base plate 1. The two handles 4 are fixedly connected to each other by two crossbars 3. A control panel 2 is fixedly connected to the front side wall of the lower crossbar 3. Self-locking casters 10 are fixedly connected to the center of the lower end surface of the base plate 1 at the four opposite corners.
[0036] Working principle: This application is a crack repair device for highway bridge construction. When in use, the cleaning roller 903 inside the lower connecting frame 902 is driven by the drive motor 906 to rotate rapidly. During the rotation, the dust and sand particles in the crack are rotated and swept away, providing a certain paving for subsequent filling of the crack. At the same time, the lower connecting frame 902 can be raised and lowered by the extension and retraction control of two electric telescopic devices 905, which can be used in different road conditions.
[0037] The peristaltic pump 601 delivers acrylic resin from the storage tank 8 to the injection head 606. Simultaneously, two fifth telescopic devices 607 control the lower pressure plate 603 to press down. During the pressing process, the lower end of the frame plate 602 first contacts the ground, and the ground feedback force compresses the two springs 609. At the same time, the two sliding rods 608 slide inside the upper surface of the frame plate 602, thereby achieving more stable pressing and facilitating subsequent gap filling. When filling the gap, the fourth telescopic device 605 drives the injection head 606 to move up and down. With the help of two cameras 604, more accurate point filling can be achieved. When the crack area is large, acrylic resin can be uniformly poured into the middle of the frame plate 602 to achieve large-area filling, which is efficient and easy to operate.
[0038] The second telescopic device 509 drives the slide plate 512 to slide on the inner sidewalls of the two slide rails 501. At the same time, the connecting body 508 and the adjusting plate are movably connected. When the rotating motor 511 drives the driving gear 513 to rotate, it meshes with the driven gear 514, which can adjust the upward and downward tilt angle between the adjusting plate and the connecting body 508. This allows for filling gaps in inclined walls. Furthermore, under the action of the two first telescopic devices 503, the height of the injection pipe 504 can also be adjusted when filling gaps. This allows the whole system to adapt to the wall conditions in real time during use, resulting in high efficiency. It can also maintain a single posture for a long time, providing convenience for filling gaps.
[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for repairing cracks in highway bridge construction, comprising a base plate (1), characterized in that: A storage tank (8) is fixedly connected to the center of the upper end face of the base plate (1) near the front side. A lower repair structure (6) is provided at the center of the upper end face of the base plate (1) behind the storage tank (8). A cleaning structure (9) is fixedly connected to the center of the front side wall of the base plate (1). A vertical repair structure (5) is fixedly connected to the center of the upper end face of the base plate (1) near the rear edge. The vertical repair structure (5) includes two slide rails (501). The lower ends of the two slide rails (501) are respectively fixedly connected to the upper surface of the base plate (1). A second telescopic device (509) is fixedly connected to the upper surface of the base plate (1) between the two slide rails (501). A sliding plate (512) is fixedly connected to the output end of the second telescopic device (509). The two ends of the sliding plate (512) are respectively slidably connected to the inner sidewalls of the two slide rails (501). The center of the upper surface of the sliding plate (512) is fixedly connected to... A connecting plate (510) is provided, and a connecting body (508) is fixedly connected to the upper end of the connecting plate (510). A rotating motor (511) is provided inside the rear side wall of the connecting body (508). A driving gear (513) is fixedly connected to the output end of the rotating motor (511). An adjusting structure is movably connected to one side wall of the connecting body (508). A driven gear (514) is fixedly connected to one side of the center of the rear side wall of the adjusting structure. The driven gear (514) and the driving gear (513) mesh with each other.
2. The device for repairing cracks in highway bridge construction according to claim 1, characterized in that: The adjustment structure includes an adjustment plate. Fixed plates (505) are fixedly connected to the center of one side wall of the adjustment plate at the front and rear sides respectively. First telescopic devices (503) are fixedly connected to the upper surfaces of the two fixed plates (505). The output ends of the two first telescopic devices (503) are fixedly connected to a vertical frame (507). An injection pipe (504) is fixedly connected to the center of the upper surface of the vertical frame (507). A small delivery pump (506) is fixedly connected to the upper surface of the vertical frame (507) on one side of the injection pipe (504). The output end of the small delivery pump (506) passes through the side wall of the injection pipe (504) and leads to the interior. A transmission pipe (502) is fixedly connected to the input end of the vertical frame (507). The other end of the transmission pipe (502) passes through the side wall of the storage tank (8) and leads to the interior.
3. The device for repairing cracks in highway bridge construction according to claim 1, characterized in that: The lower repair structure (6) includes a peristaltic pump (601). The lower end of the peristaltic pump (601) is fixedly connected to the center of the upper end face of the base plate (1). The input end of the peristaltic pump (601) penetrates the side wall of the storage tank (8) and leads to the interior. A lower pressure plate (603) is provided at the center of the lower end face of the base plate (1) at the lower end of the peristaltic pump (601). A fifth telescopic device (607) is fixedly connected to the center of the upper end face of the lower pressure plate (603) near both sides. The upper ends of the two fifth telescopic devices (607) are fixedly connected to the lower end face of the base plate (1). A square frame plate (602) is provided at the lower end of the lower pressure plate (603). A sliding rod (608) is provided at the center of the upper end face of the square frame plate (602) near both sides. The two sliding rods (608) are fixedly connected to the center of the upper end face of the square frame plate (602). The upper ends of the two sliding rods (608) are fixedly connected to the lower end face of the lower pressure plate (603). Springs (609) are respectively sleeved on the side walls of the two sliding rods (608). The upper and lower ends of the two springs (609) are respectively fixedly connected to the lower end face of the lower pressure plate (603) and the upper end face of the square frame plate (602). The lower ends of the two sliding rods (608) pass through the upper end face of the square frame plate (602) and lead to the interior. A fourth telescopic device (605) is fixedly connected to the lower end face of the middle base plate (1) of the lower pressure plate (603). An injection head (606) is fixedly connected to the output end of the fourth telescopic device (605). The output end of the peristaltic pump (601) passes through the upper end face of the base plate (1) and the side wall of the injection head (606) and leads to the interior of the injection head (606).
4. The device for repairing cracks in highway bridge construction according to claim 1, characterized in that: The cleaning structure (9) includes a fixed frame (901). Connecting rods (904) are fixedly connected to the center of the rear side wall of the fixed frame (901) on both sides. The other ends of the connecting rods (904) are fixedly connected to the front side wall of the base plate (1). Electric telescopic devices (905) are fixedly connected to the center of the upper end face of the fixed frame (901) on both sides. The output ends of the two electric telescopic devices (905) pass through the upper end face of the fixed frame (901) and lead to the lower end. The lower connecting frame (902) is fixedly connected to the end of the cleaning roller (903), and the two ends of the cleaning roller (903) are rotatably connected to the two inner side walls of the lower connecting frame (902). A drive motor (906) is fixedly connected to the center of one side wall of the lower connecting frame (902). The output end of the drive motor (906) passes through the side wall of the lower connecting frame (902) and leads to the interior, and its end is fixedly connected to one end of the cleaning roller (903).
5. A device for repairing cracks in highway bridge construction according to claim 3, characterized in that: Cameras (604) are fixedly connected to the lower end surfaces of the base plates (1) on both sides of the fourth telescopic device (605).
6. The device for repairing cracks in highway bridge construction according to claim 1, characterized in that: A stirring motor (7) is provided at the center of the upper end face of the storage tank (8). The output end of the stirring motor (7) passes through the upper end face of the storage tank (8) and leads to the interior, and a stirring shaft is fixedly connected to the end.
7. A device for repairing cracks in highway bridge construction according to claim 1, characterized in that: Two handles (4) are fixedly connected to the rear side wall of the base plate (1), and the two handles (4) are fixedly connected to each other by two crossbars (3). A control panel (2) is fixedly connected to the front side wall of the lower crossbar (3).
8. A device for repairing cracks in highway bridge construction according to claim 1, characterized in that: The bottom plate (1) is fixedly connected to four diagonal corners of the center of its lower end face with self-locking casters (10).