Bridge high pier concrete automatic spraying repair device

By designing an automatic spraying and repair device for high bridge pier concrete, and utilizing a linkage cleaning mechanism and a fully automated repair process, the problem of unevenness on the surface of high bridge piers was solved, achieving efficient and safe repair results.

CN122382913APending Publication Date: 2026-07-14CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP CO LTD
Filing Date
2026-06-05
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The surface of bridge piers is uneven, cracked, or has holes, and contains garbage and dust. Direct spraying for repair is difficult to guarantee curing, resulting in a decline in repair quality and requiring rework, which increases costs and time.

Method used

Design an automatic spraying repair device for concrete on high bridge piers. It adopts a linkage cleaning mechanism, which drives the turntable, connecting plate and hammer to work together to clean loose concrete blocks through a drive motor. The cleaning disc is rotated by bevel gear transmission to provide a flat base surface. At the same time, it integrates a repair material storage tank, pump and spray head to realize fully automated repair.

Benefits of technology

It significantly improves the hardening properties and quality of repair materials, avoids rework, saves costs and time, increases work efficiency, reduces labor intensity, and ensures construction safety and environmental protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of bridge high pier concrete automatic spraying repair devices, related to bridge high pier repair technical field, including equipment box, linkage cleaning mechanism is arranged in equipment box, linkage cleaning mechanism includes the driving motor arranged in equipment box, driving motor is provided with driving rod at output end, driving rod side is fixedly connected with carousel, carousel side is fixedly connected with first connecting plate, first connecting plate below is rotatably connected with second connecting plate, second connecting plate is rotatably connected with slide bar on side away from first connecting plate, slide bar side is slidably connected with groove plate, slide bar is fixedly connected with hammer body on side away from groove plate, driving rod is rotatably connected with connecting rod above, not only effectively remove uneven place loose concrete block, garbage and dust, also provide clean, smooth base surface for subsequent spraying repair, significantly improve the solidification of repair material and repair quality, avoid the secondary rework caused by improper base surface treatment, save cost and time.
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Description

Technical Field

[0001] This invention relates to the field of bridge pier repair technology, and in particular to an automatic concrete spraying repair device for bridge piers. Background Technology

[0002] As a critical supporting component of bridge structures, damage to bridge piers can have severe consequences, encompassing structural safety, traffic operation, economic costs, and social impact. Piers are among the main load-bearing components of a bridge, and their damage directly weakens the overall stability of the bridge. For example, when cracks or localized concrete spalling occur in a pier, its load-bearing capacity is significantly reduced, rendering it unable to effectively withstand the loads transmitted from the bridge superstructure. This disrupts the overall mechanical balance of the bridge, making it more susceptible to deformation or even collapse under vehicle loads, wind loads, earthquakes, and other external forces. Damage to piers can also trigger a chain reaction of damage to other parts of the bridge. For instance, tilting or settling of piers alters the stress state of the bridge superstructure, creating additional stress on the beams and leading to cracks and deformation. Furthermore, damage to the connection between the pier and the foundation can affect the stability of the foundation, further exacerbating potential safety hazards to the bridge.

[0003] In existing technologies, the surface of high piers may have unevenness, cracks, or holes. These areas may contain garbage and a lot of dust, and uneven areas may contain incompletely detached concrete blocks. If spraying is applied directly for repair, it is difficult to guarantee its curing properties, which may lead to uneven coverage or waste of repair materials, reduced repair quality, and the need for rework, increasing costs and time. Therefore, an automatic spraying repair device for high bridge pier concrete is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as unevenness, cracks, or holes on the surface of high piers, which may contain garbage and a large amount of dust. Furthermore, uneven areas may contain incompletely detached concrete blocks. Direct spraying repairs may not guarantee the curing properties of the repair material, potentially leading to uneven coverage or waste, reduced repair quality, and the need for rework, thus increasing costs and time. Therefore, this invention proposes an automatic spraying repair device for concrete on high bridge piers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic spraying and repair device for concrete on high bridge piers includes an equipment box. A linkage cleaning mechanism is installed inside the equipment box. The linkage cleaning mechanism includes a drive motor installed inside the equipment box. A drive rod is installed at the output end of the drive motor. A turntable is fixedly connected to the side of the drive rod. A first connecting plate is fixedly connected to the side of the turntable. A second connecting plate is rotatably connected below the first connecting plate. A sliding rod is rotatably connected to the side of the second connecting plate away from the first connecting plate. A grooved plate is slidably connected to the side of the sliding rod. A hammer is fixedly connected to the side of the sliding rod away from the grooved plate. A connecting rod is driven above the drive rod. The rod has a first bevel gear fixedly connected to its side, a telescopic rod driven by the first bevel gear, a threaded rod fixedly connected to the side of the telescopic rod away from the first bevel gear, and a cleaning disc fixedly connected to the side of the threaded rod away from the telescopic rod. The drive motor drives the turntable to rotate via the drive rod. The turntable drives the slide rod to slide back and forth on the inner wall of the trough plate via the first connecting plate and the second connecting plate. The slide rod drives the hammer to reciprocate and strike the loose concrete block. The drive rod synchronously drives the telescopic rod and the threaded rod to rotate via the connecting rod and the first bevel gear. The threaded rod drives the cleaning disc to rotate and clean.

[0006] The device can be installed on cranes, elevators, and other equipment, allowing for vertical and horizontal position adjustments to work together to repair high bridge piers.

[0007] The above technical solution further includes: The equipment box is fixedly connected to the drive motor, the drive rod is rotatably connected to the equipment box, the first bevel gear is meshed with the second bevel gear on its side, the second bevel gear is fixedly connected to the telescopic rod, and the connecting rod is rotatably connected to the equipment box.

[0008] The drive rod is connected to a drive belt on the side away from the turntable, and the drive belt is connected to the connecting rod.

[0009] A support plate is fixedly connected below the slot plate, and the support plate is fixedly connected to the equipment box.

[0010] The threaded rod is threaded to a fixing plate on the side near the cleaning disc, and the fixing plate is fixedly connected to it.

[0011] A repair material storage tank is located below the equipment box, and a pump is fixedly connected to the side of the repair material storage tank. A hose is provided at the output end of the pump.

[0012] A guide plate is fixedly connected to the top of the equipment box. A hydraulic rod is installed inside the guide plate. A repair nozzle is installed at the output end of the hydraulic rod. The repair nozzle is fixedly connected to a hose.

[0013] The repair material storage tank is fixedly connected to a feed inlet on the side near the equipment box.

[0014] A debris collection box is installed below the equipment box.

[0015] The equipment box has a mounting frame on its side.

[0016] The present invention has the following beneficial effects: 1. In this invention, the linkage cleaning mechanism drives the turntable, connecting plate, slide rod and hammer to work together through the drive motor. The hammer reciprocates to strike the loose concrete blocks, and at the same time, the bevel gear transmission drives the cleaning disc to rotate, so as to thoroughly clean the surface of the high pier. This not only effectively removes loose concrete blocks, garbage and dust from uneven areas, but also provides a clean and flat base surface for subsequent spraying and repair. It significantly improves the curing properties and repair quality of the repair material, avoids secondary rework caused by improper base surface treatment, and saves costs and time.

[0017] 2. In this invention, the device integrates cleaning and spraying repair functions. Through the linkage cleaning mechanism inside the equipment box and external components such as repair material storage tank, pump, hose, and repair nozzle, a fully automated process from cleaning to spraying repair is realized. The operator only needs to control the overall movement of the device and the extension and retraction of the hydraulic rod to complete the repair work on different parts of the bridge pier, which greatly improves work efficiency and reduces labor intensity.

[0018] 3. In this invention, the debris collection box set below the equipment box can effectively collect falling concrete blocks and dust and other garbage, preventing them from falling from a height and causing injury to construction workers below, thus ensuring construction safety. At the same time, this design also reflects the concept of environmental protection, reducing dust pollution during the construction process and protecting the construction environment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an automatic spraying and repair device for high concrete piers of bridges proposed in this invention. Figure 2 This is a schematic diagram of the external structure in this invention; Figure 3 This is a schematic diagram of a portion of the three-dimensional structure in this invention. Figure 1 ; Figure 4 This is a schematic diagram of a portion of the three-dimensional structure in this invention. Figure 1 ; Figure 5 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 6 for Figure 4 Enlarged schematic diagram of the structure at point B.

[0020] In the diagram: 1. Equipment box; 2. Drive motor; 3. Drive rod; 4. Turntable; 5. First connecting plate; 6. Second connecting plate; 7. Slide rod; 8. Hammer body; 9. Groove plate; 10. Support plate; 11. Transmission belt; 12. Connecting rod; 13. First bevel gear; 14. Second bevel gear; 15. Telescopic rod; 16. Threaded rod; 17. Cleaning disc; 18. Fixing plate; 19. Repair material storage tank; 20. Pump; 21. Hoses; 22. Guide plate; 23. Hydraulic rod; 24. Repair nozzle; 25. Feed inlet; 26. Debris collection box; 27. Mounting frame. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-6 As shown, this invention is an automatic spraying and repair device for concrete on high bridge piers, including an equipment box 1. A linkage cleaning mechanism is installed inside the equipment box 1. The linkage cleaning mechanism includes a drive motor 2 installed inside the equipment box 1. A drive rod 3 is installed at the output end of the drive motor 2. A turntable 4 is fixedly connected to the side of the drive rod 3. A first connecting plate 5 is fixedly connected to the side of the turntable 4. A second connecting plate 6 is rotatably connected below the first connecting plate 5. A sliding rod 7 is rotatably connected to the side of the second connecting plate 6 away from the first connecting plate 5. A grooved plate 9 is slidably connected to the side of the sliding rod 7. A hammer 8 is fixedly connected to the side of the sliding rod 7 away from the grooved plate 9. A connecting rod 12 is transmitted above the drive rod 3. A first bevel gear 13 is fixedly connected to the side, and a telescopic rod 15 is driven to the side of the first bevel gear 13. A threaded rod 16 is fixedly connected to the side of the telescopic rod 15 away from the first bevel gear 13, and a cleaning disc 17 is fixedly connected to the side of the threaded rod 16 away from the telescopic rod 15. The drive motor 2 drives the turntable 4 to rotate through the drive rod 3. The turntable 4 drives the slide rod 7 to slide back and forth on the inner wall of the groove plate 9 through the first connecting plate 5 and the second connecting plate 6. The slide rod 7 drives the hammer 8 to repeatedly strike the loose concrete block. The drive rod 3 drives the telescopic rod 15 and the threaded rod 16 to rotate through the connecting rod 12 and the first bevel gear 13. The threaded rod 16 drives the cleaning disc 17 to rotate and clean.

[0023] The equipment box 1 is fixedly connected to the drive motor 2, the drive rod 3 is rotatably connected to the equipment box 1, the connecting rod 12 is rotatably connected to the equipment box 1, and the fixing plate 18 is fixedly connected to the equipment box 1.

[0024] The drive rod 3 is connected to a drive belt 11 on the side away from the turntable 4, and the drive belt 11 is connected to the connecting rod 12.

[0025] The threaded rod 16 is threadedly connected to a fixing plate 18 on the side near the cleaning disc 17, and the fixing plate 18 is fixedly connected to 1.

[0026] In this embodiment, the linkage cleaning mechanism installed inside the equipment box 1 is activated. The drive motor 2, which is fixedly installed inside the equipment box 1, starts running. When the drive motor 2 runs, it controls the drive rod 3 at its output end to rotate. When the drive rod 3 rotates, it drives the turntable 4 to rotate. When the turntable 4 rotates, it drives the first connecting plate 5, which is fixedly connected to its side, to rotate. Since the first connecting plate 5 and the second connecting plate 6 are rotatably connected, and the other end of the second connecting plate 6 is rotatably connected to the slide rod 7, when the first connecting plate 5 rotates one revolution, it drives the slide rod 7 to move one end reciprocally through the second connecting plate 6. The slide rod 7 slides reciprocally on the inner wall of the slot plate 9. When the slide rod 7 moves, it drives the hammer 8, which is fixedly connected to its other side, to move reciprocally. The reciprocating movement of the hammer 8 knocks down the loose concrete blocks on the bridge pier, making them fall off for subsequent repairs. At the same time, the rotation of the drive rod 3 drives the transmission belt 11, which is connected to its side, to rotate. When the transmission belt 11 rotates, it drives the transmission belt 11, which is connected to its other side, to rotate. The connecting rod 12 of the transmission connection rotates on the inner wall of the equipment box 1. When the connecting rod 12 rotates, it drives the first bevel gear 13, which is fixedly connected to its side, to rotate. When the first bevel gear 13 rotates, it drives the second bevel gear 14, which is meshed with its lower part, to rotate. When the second bevel gear 14 rotates, it drives the telescopic rod 15, which is fixedly connected to its side, to rotate. When the telescopic rod 15 rotates, it drives the threaded rod 16, which is fixedly connected to its side, to rotate. The threaded rod 16 rotates inside the fixed plate 18. Since the threaded rod 16 is threadedly connected to the fixed plate 18, the threaded rod 16 moves while rotating. When the threaded rod 16 moves, it drives the fixed plate 18, which is fixedly connected to its other side, to move and rotate. The threaded rod 16 drives the telescopic rod 15 to extend and retract accordingly without affecting the normal operation of the device. It cleans the dust and other impurities remaining at the bridge pier, ensuring high solidification of the material used for subsequent repairs of the bridge pier. In conjunction with other devices such as cranes and elevators, the device can repair different parts of the bridge pier.

[0027] In one embodiment, for the aforementioned slot plate 9, a support plate 10 is fixedly connected below the slot plate 9, and the support plate 10 is fixedly connected to the equipment box 1.

[0028] In this embodiment, a support plate 10 is fixedly connected below the slot plate 9. The support plate 10 is disposed between the slot plate 9 and the equipment box 1 to ensure the stability of the slot plate 9 during operation.

[0029] In one embodiment, for the above-mentioned equipment box 1, a repair material storage tank 19 is provided at the bottom of the equipment box 1, a pump 20 is fixedly connected to the side of the repair material storage tank 19, and a hose 21 is provided at the output end of the pump 20.

[0030] In this embodiment, the repair material storage tank 19 located below the equipment box 1 is used to store repair materials, such as mud. A pump 20 is fixedly connected to the side of the repair material storage tank 19. The pump 20 extracts the repair material stored in the repair material storage tank 19 and transmits it out through the hose 21 at the output end of the pump 20.

[0031] In one embodiment, for the above-mentioned equipment box 1, a guide plate 22 is fixedly connected to the top of the equipment box 1, a hydraulic rod 23 is provided inside the guide plate 22, a repair nozzle 24 is provided at the output end of the hydraulic rod 23, and the repair nozzle 24 is fixedly connected to the hose 21.

[0032] In this embodiment, a guide plate 22 is fixedly connected to the top of the equipment box 1. A hydraulic rod 23 installed inside the guide plate 22 can control the extension and retraction of its output end. The repair nozzle 24 is moved to a suitable position by the hydraulic rod 23, and the hose 21 automatically sprays the repair material transmitted inside the hose onto the damaged area of ​​the bridge pier through the repair nozzle 24.

[0033] In one embodiment, the repair material storage tank 19 is fixedly connected to a feed inlet 25 on the side of the repair material storage tank 19 near the equipment box 1.

[0034] In this embodiment, repair material can be added to the inside of the repair material storage tank 19 in a timely manner through the feed port 25 provided on the side of the repair material storage tank 19.

[0035] In one embodiment, for the aforementioned equipment box 1, a debris collection box 26 is provided below the equipment box 1.

[0036] In this embodiment, the debris collection box 26 installed below the equipment box 1 can be used to collect fallen concrete blocks, dust and other garbage to prevent them from falling from a height and causing injury to construction workers below.

[0037] In one embodiment, for the aforementioned equipment box 1, a mounting frame 27 is provided on the side of the equipment box 1.

[0038] In this embodiment, an installation frame 27 is provided on the side of the equipment box 1, and holes are evenly provided around the installation frame 27 to facilitate the installation of this device on cranes, elevators and other devices.

[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 variations 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. An automatic spraying and repair device for concrete on high bridge piers, comprising an equipment box (1), characterized in that, The equipment box (1) is equipped with a linkage cleaning mechanism. The linkage cleaning mechanism includes a drive motor (2) installed inside the equipment box (1). The output end of the drive motor (2) is equipped with a drive rod (3). A turntable (4) is fixedly connected to the side of the drive rod (3). A first connecting plate (5) is fixedly connected to the side of the turntable (4). A second connecting plate (6) is rotatably connected below the first connecting plate (5). A slide rod (7) is rotatably connected to the side of the second connecting plate (6) away from the first connecting plate (5). A groove plate (9) is slidably connected to the side of the slide rod (7). A hammer (8) is fixedly connected to the side of the slide rod (7) away from the groove plate (9). A connecting rod (12) is transmitted above the drive rod (3). A first bevel gear (13) is fixedly connected to the side of the connecting rod (12). The first bevel gear (13) is connected to a telescopic rod (15) via a side drive. A threaded rod (16) is fixedly connected to the side of the telescopic rod (15) away from the first bevel gear (13). A cleaning disc (17) is fixedly connected to the side of the threaded rod (16) away from the telescopic rod (15). The drive motor (2) drives the turntable (4) to rotate via the drive rod (3). The turntable (4) drives the slide rod (7) to slide back and forth on the inner wall of the groove plate (9) via the first connecting plate (5) and the second connecting plate (6). The slide rod (7) drives the hammer (8) to repeatedly strike the loose concrete block. The drive rod (3) drives the telescopic rod (15) and the threaded rod (16) to rotate simultaneously via the connecting rod (12) and the first bevel gear (13). The threaded rod (16) drives the cleaning disc (17) to rotate and clean.

2. The automatic spraying and repair device for high bridge pier concrete according to claim 1, characterized in that, The equipment box (1) is fixedly connected to the drive motor (2), the drive rod (3) is rotatably connected to the equipment box (1), the first bevel gear (13) is meshed with the second bevel gear (14) on the side, the second bevel gear (14) is fixedly connected to the telescopic rod (15), and the connecting rod (12) is rotatably connected to the equipment box (1).

3. The automatic spraying and repair device for high bridge pier concrete according to claim 1, characterized in that, The drive rod (3) is connected to a drive belt (11) on the side away from the turntable (4), and the drive belt (11) is connected to the connecting rod (12).

4. The automatic spraying and repair device for high bridge pier concrete according to claim 1, characterized in that, A support plate (10) is fixedly connected below the slot plate (9), and the support plate (10) is fixedly connected to the equipment box (1).

5. The automatic spraying and repair device for high bridge pier concrete according to claim 1, characterized in that, The threaded rod (16) is threaded to a fixing plate (18) on the side near the cleaning disc (17), and the fixing plate (18) is fixedly connected to 1.

6. The automatic spraying and repair device for high bridge pier concrete according to claim 1, characterized in that, A repair material storage tank (19) is provided below the equipment box (1). A pump (20) is fixedly connected to the side of the repair material storage tank (19). A hose (21) is provided at the output end of the pump (20).

7. The automatic spraying and repair device for high bridge pier concrete according to claim 6, characterized in that, The top of the equipment box (1) is fixedly connected to a guide plate (22), and a hydraulic rod (23) is provided inside the guide plate (22). A repair nozzle (24) is provided at the output end of the hydraulic rod (23), and the repair nozzle (24) is fixedly connected to the hose (21).

8. The automatic spraying and repair device for high bridge pier concrete according to claim 6, characterized in that, The repair material storage tank (19) is fixedly connected to the inlet (25) on the side near the equipment box (1).

9. The automatic spraying and repair device for high bridge pier concrete according to claim 1, characterized in that, A debris collection box (26) is provided below the equipment box (1).

10. The automatic spraying and repair device for high bridge pier concrete according to claim 1, characterized in that, The equipment box (1) is provided with an installation frame (27) on its side.