Automatic maintenance spraying facility for highway bridge high-pier construction

Abstract

The application discloses a kind of automatic maintenance spraying facilities for highway bridge high pier construction in the technical field of bridge high pier construction, including main body threaded rod, it is characterized by: the threaded sleeve is threadedly connected with the main body threaded rod, the possibility of being blown away by horizontal wind force can be reduced, at the same time, the wind shield is always blocked with the peripheral connection pipe to reduce the influence of high-altitude wind, ensure that the water sprayed can be sprayed on the high pier, reduce water resource waste, ensure uniform spraying, improve the maintenance quality of high pier bridge.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge high-pier construction, in particular to an automatic curing sprinkler facility for high-pier construction of highway bridges. Background Art

[0002] With the continuous advancement of highway bridge construction in China, the national expressway network is becoming increasingly perfect, highway traffic construction is increasingly expanding into mountainous areas, and high-pier bridges crossing rivers, lakes and canyons will be widely adopted. Highway traffic construction continues to extend from plain areas to mountainous areas. Due to the numerous peaks and forests, deep valleys and steep slopes in alpine regions, the topography, geomorphology and engineering geological conditions are all very complex, leading to a sharp increase in project scale and difficulty. Affected by terrain and other conditions, highway construction in mountainous areas often needs to cross canyons, lakes and rivers. Therefore, the construction of large-span and high-pier bridges has gradually increased. High piers mostly adopt structural forms such as solid slab, hollow thin-walled and lattice structure, which have relatively complex mechanical properties, and have remarkable characteristics such as height, large size and flexibility, thus requiring high design standards and having great construction difficulty.

[0003] With respect to the automatic spray curing device and curing method for bridge high piers disclosed in the application with the application number CN202110474729.2, the spray curing pipelines are pre-embedded in the high pier, which avoids the problem that external pipelines are difficult to arrange or affect the construction of high pier pouring formwork. The high pier is poured by layer-by-layer stacking, the spray device can be arranged along with the movement of the turnover formwork, the installation and disassembly are simple and convenient, and the pier base poured at the lower layer can be cured by spraying in time, which greatly guarantees the forming quality of the pier base. Water in the water truck is delivered to the spray nozzles in the spray device through a water supply pump, so that the pier base after being poured at the lower layer can be cured by spraying timely and conveniently.

[0004] The height of piers of high-pier bridges is relatively large. The above-mentioned patent adopts a segmented pouring method for pier construction, and sprays the lower pier when pouring the upper-layer pier. In this method, a new built-in spray pipe needs to be installed when pouring each section of pier, which results in cumbersome disassembly and assembly. When pouring relatively high upper bridge sections, water is sprayed from the spray equipment at high altitude, and the wind force on the upper layer of the pier is strong, which causes the wind to drive the water to diffuse around in the air, further leading to uneven wettability between the upper end pier and the lower bridge section and resulting in uneven spraying on the pier. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an automatic curing sprinkler facility for highway bridge high pier construction, which eliminates the influence of high-altitude wind force on sprinkled water body and ensures uniform sprinkling on the upper end of the pier.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic maintenance spraying facility for high pier construction of highway bridges, comprising a main threaded rod, characterized in that: the main threaded rod is threadedly connected to a threaded sleeve, the outer surface of the threaded sleeve is connected to a side mounting plate, a main mounting plate is installed between the side mounting plates, the side periphery of the main mounting plate is connected to the side mounting plates, a wind shield is connected to the outer ring of the lower surface of the main mounting plate, a rotating disk is connected to the lower surface of the main mounting plate, a mounting frame is connected to the rotating disk, a sliding plate is slidably connected to the lower surface of the mounting frame, one end of the sliding plate is connected to a connecting pipe, a storage box is rotatably mounted on the upper surface of the main mounting plate, and a transmission component is provided above the storage box, the transmission component can drive the rotating disk to drive the connecting pipe to rotate.

[0007] The transmission assembly includes a transmission ring and multiple sets of transmission rods. The transmission rods are rotatably connected to the main mounting plate. The upper end of the transmission rod is connected to an upper gear, and the lower end of the transmission rod is connected to a lower gear. The upper end of the threaded sleeve is connected to a moving gear. The inner ring of the transmission ring is provided with internal teeth that mesh with the upper gear. The outer ring of the transmission ring is provided with external teeth that mesh with the moving gear.

[0008] The outer ring of the rotating disk is connected to a driven gear ring, which meshes with the lower gear. An embedded disk is rotatably mounted on the inner ring of the rotating disk, and the lower end of the embedded disk is connected to a driving gear ring. A movable tooth is provided on one side of the sliding plate.

[0009] Multiple electric telescopic rods are rotatably mounted on the lower surface of the rotating disk corresponding to one side of the sliding plate. The lower end of the electric telescopic rod is connected to an adjusting gear. When the adjusting gear is in the upper position, it can simultaneously mesh with the moving teeth and the driving gear ring. When the adjusting gear is in the lower position, it only meshes with the moving teeth.

[0010] Each of the connecting pipes is connected to a connecting hose. The end of the connecting hose away from the connecting pipe is connected to the storage box. A limit groove is provided on the main mounting plate corresponding to the position of the connecting hose. The lower end of the connecting pipe is connected to a movable cover.

[0011] The main mounting plate is divided into an outer connecting plate and an inner connecting plate by a limiting groove. The inner connecting plate and the outer connecting plate are fixed by an upper U-shaped frame. The two ends of the U-shaped frame are respectively fixedly installed on the inner connecting plate and the outer connecting plate. The transmission ring is located between the U-shaped frames and is rotatably connected to the U-shaped frame.

[0012] The lower end of the main threaded rod is connected to a load-bearing seat. The upper surface of the side mounting plate is connected to a drive motor. The output end of the drive motor is connected to a drive gear. The drive gear meshes with the moving gear. The lower surface of the main mounting plate is connected to a micro motor. The output end of the micro motor is connected to an adjustable gear. The output end of the adjustable gear meshes with the active gear ring.

[0013] The movable cover is internally connected to a distance sensor, which is connected to a remote control terminal via Bluetooth. A main water pipe is fixedly connected to the outside of the storage box, and the main water pipe is fixedly connected to a lower water valve.

[0014] Compared with the prior art, the beneficial effects of the present invention are: In this invention, the main mounting plate and the threaded sleeve work together, and the threaded sleeve rotation drive device moves downward while spraying water onto the high pier bridge. During the spraying process, a remote terminal controls a sliding plate to slide below the mounting frame, allowing the connecting pipe to be as close as possible to the surface of the high pier bridge. The threaded sleeve is then continuously driven to rotate, which in turn drives the main mounting plate to move downward. Simultaneously, a transmission component drives the connecting pipe to rotate continuously along the pier surface, spraying the pier surface. The continuous rotation of the connecting pipe on the pier surface ensures uniform spraying. Furthermore, the connecting pipe's proximity to the pier surface during spraying reduces the distance the water travels from the sprayed water to the pier's main surface, thus shortening the water's travel time and reducing the possibility of horizontal wind scattering. Additionally, a wind deflector is always positioned around the connecting pipe to block wind, reducing the impact of high-altitude winds and ensuring that all sprayed water reaches the high pier, minimizing water waste, ensuring uniform spraying, and improving the maintenance quality of the high pier bridge.

[0015] In this invention, the rotation of the threaded sleeve on the main threaded rod simultaneously drives the rotation of the moving gear. The rotation of the moving gear, through its meshing external teeth, drives the rotation of the transmission rod. The rotation of the transmission rod drives the rotation of the lower gear at its lower end. The rotation of the lower gear, through interaction with the driven gear ring on the rotating disk, drives the rotating disk to rotate. The rotation of the rotating disk drives the mounting bracket on it to rotate. The rotation of the mounting bracket, in turn, drives the connecting pipe to rotate. This allows the connecting pipe to continuously rotate on the surface of the high pier bridge during its downward movement, ensuring that the water sprayed from the connecting pipe can be sprayed more evenly and comprehensively on the surface of the high pier bridge, ensuring comprehensive and meticulous maintenance of the high pier bridge and improving the quality of maintenance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A partial structural diagram at point A in the middle; Figure 3 For the present invention Figure 1 A partial structural diagram at point B; Figure 4 This is a schematic diagram of the structure of the present invention from the bottom view; Figure 5 For the present invention Figure 4 A partial structural diagram at point C; Figure 6 This is a cross-sectional view of the structure of the present invention; Figure 7 For the present invention Figure 6 A partial schematic diagram of the structure at point D.

[0018] The attached diagram lists the components represented by each number as follows: 1. Main threaded rod; 2. Moving gear; 3. Transmission ring; 301. External gear; 302. Internal gear; 4. Upper gear; 5. Transmission rod; 6. Windshield; 7. Main mounting plate; 8. Side mounting plate; 9. Storage box; 10. Movable cover; 11. Connecting pipe; 12. Connecting hose; 13. Sliding plate; 14. Moving gear; 15. Mounting bracket; 16. Rotating disc; 17. Embedded disc; 18. Adjusting gear; 19. Driving gear ring; 20. Driven gear ring; 21. Threaded sleeve; 22. Lower gear; 23. Electric telescopic rod. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-7This invention provides a technical solution: an automatic maintenance spraying facility for the construction of high piers of highway bridges, comprising a main threaded rod 1, with multiple sets of threaded sleeves 21 threadedly connected to each set. Side mounting plates 8 are rotatably mounted on the outer surface of the threaded sleeves 21. Main mounting plates 7 are connected between the side mounting plates 8. A wind shield 6 is connected to the outer ring of the lower surface of the main mounting plate 7. A rotating disk 16 is connected to the lower surface of the main mounting plate 7. A mounting frame 15 is connected to the rotating disk 16. A sliding plate 13 is slidably connected to the lower surface of the mounting frame 15. One end of the sliding plate 13 is connected to a connecting pipe 11. A storage box 9 is rotatably mounted on the upper surface of the main mounting plate 7. A transmission component is provided above the storage box 9. The transmission component can drive the rotating disk 16 to rotate the connecting pipe 11 while driving the threaded sleeves 21 to move up and down on the surface of the main threaded rod 1.

[0021] During operation, when spraying maintenance is required on the high piers of the bridge, the threaded sleeve 21 is rotated to move it to the upper end of the main threaded rod 1 (located above the high pier bridge), ensuring that the windshield 6 is above the high pier bridge. Then, the main threaded rod 1 is positioned on both sides of the circular high pier bridge using the bottom counterweight. The threaded sleeve 21 is then driven to rotate in the opposite direction. The threads of the threaded sleeve 21 interact with the main threaded rod 1, causing the threaded sleeve 21 to move downwards a short distance along the main threaded rod 1. This downward movement of the threaded sleeve 21 causes the side mounting plate 8 and the main mounting plate 7 to move downwards a short distance, positioning the connecting pipe 11 at the edge of the high pier bridge. Then, the sliding plate 13 is controlled by a remote terminal to slide below the mounting frame 15, maximizing the contact between the connecting pipe 11 and the surface of the high pier bridge. The threaded sleeve 21 is continuously driven to rotate, which in turn drives the main mounting plate 7 to move downwards. Simultaneously, the connecting pipe 11 is driven to rotate continuously along the pier surface via the transmission assembly, spraying the pier surface. The connecting pipe 11 rotates continuously on the pier surface to ensure the uniformity of the spraying. During the spraying process, the connecting pipe 11 is kept as close as possible to the pier surface to reduce the distance between the sprayed water and the main surface of the pier, thereby shortening the water travel time and reducing the possibility of horizontal dispersion due to wind. At the same time, the wind deflector 6 is always positioned around the connecting pipe 11 to block the wind, reducing the impact of high-altitude winds and ensuring that the sprayed water can be sprayed onto the high pier, reducing water waste, ensuring uniform spraying, and improving the maintenance quality of high-pier bridges.

[0022] In this invention, through the cooperation between the main mounting plate 7 and the threaded sleeve 21, the threaded sleeve 21 rotates and drives the main mounting plate 7 downwards while spraying the high pier bridge. During the spraying process, the remote terminal controls the sliding plate 13 to slide below the mounting frame 15, so that the connecting pipe 11 is as close as possible to the surface of the high pier bridge. Then, the threaded sleeve 21 is continuously driven to rotate, and the threaded sleeve 21 drives the main mounting plate 7 to move downwards as a whole. At the same time, through the transmission component, the connecting pipe 11 is driven to continuously rotate along the surface of the pier to spray the surface of the pier. The connecting pipe 11 does not... The end rotates on the pier surface to ensure uniform spraying. During spraying, the connecting pipe 11 is kept as close as possible to the pier surface to reduce the distance between the sprayed water and the main pier surface, thereby shortening the water travel time and reducing the possibility of horizontal wind scattering. At the same time, the wind shield 6 is always positioned around the connecting pipe 11 to block the wind, reducing the impact of high-altitude winds and ensuring that the sprayed water can be sprayed onto the high pier, reducing water waste, ensuring uniform spraying, and improving the maintenance quality of high pier bridges.

[0023] The components used in this embodiment, specifically the electric linear actuator, are selected as follows: Brand: Longxiang; Model: 200mm stroke, 1000N thrust, 24V voltage; Power supply: 24V / 4A; Brand: Mean Well; Model: [Missing information - likely a brand name or model number]. The electric linear actuator of this invention can be a Longxiang brand, with a 200mm stroke, 1000N thrust, and 24V voltage. It has a corresponding electric linear actuator motor linear driver and power supply. This application only utilizes the push-pull function of the electric linear actuator. In actual use, the electric linear actuator can be manually opened and closed according to actual needs via a drive device to achieve the basic functions of this application. The automatic control circuit of the electric linear actuator can be designed by those skilled in electrical control without creative invention, which does not limit the implementation of this application.

[0024] As a further embodiment of the present invention, the transmission assembly includes a transmission rod 5 and a transmission ring 3. The transmission rod 5 is provided with multiple sets of transmission rods rotatably connected to the main mounting plate 7. The upper end of the transmission rod 5 is connected to the upper gear 4, and the lower end of the transmission rod 5 is connected to the lower gear 22. The upper end of the threaded sleeve 21 is connected to the moving gear 2. The inner ring of the transmission ring 3 is provided with internal teeth 302, which mesh with the upper gear 4. The outer ring of the transmission ring 3 is provided with external teeth 301, which mesh with the moving gear 2.

[0025] During operation, the threaded sleeve 21 rotates and moves on the main threaded rod 1, simultaneously driving the moving gear 2 to rotate. The rotation of the moving gear 2 drives the transmission ring 3 to rotate through the meshing external teeth 301. The rotation of the transmission ring 3 drives the internal teeth 302 to rotate. The rotation of the internal teeth 302 drives the meshing upper gear 4 to rotate. The rotation of the upper gear 4 drives the transmission rod 5 to rotate. The rotation of the transmission rod 5 drives the lower gear 22 at its lower end to rotate. The rotation of the lower gear 22, through interaction with the driven gear ring 20 on the rotating disk 16, drives the rotating disk 16 to rotate. The rotation of the rotating disk 16 drives the mounting bracket 15 on it to rotate. The rotation of the mounting bracket 15 then drives the connecting pipe 11 to rotate. This causes the connecting pipe 11 to continuously rotate on the surface of the high pier bridge during its downward movement, allowing the water sprayed from the connecting pipe to be sprayed more evenly and comprehensively on the surface of the high pier bridge, ensuring comprehensive and meticulous maintenance of the high pier bridge and improving the quality of maintenance.

[0026] In this invention, the threaded sleeve 21 rotates and moves on the main threaded rod 1, while simultaneously driving the moving gear 2 to rotate. The rotation of the moving gear 2 drives the transmission rod 5 to rotate through the meshing external teeth 301. The rotation of the transmission rod 5 drives the lower gear 22 at its lower end to rotate. The rotation of the lower gear 22, through interaction with the driven gear ring 20 on the rotating disk 16, drives the rotating disk 16 to rotate. The rotation of the rotating disk 16 drives the mounting bracket 15 on it to rotate. The rotation of the mounting bracket 15, in turn, drives the connecting pipe 11 to rotate. This allows the connecting pipe 11 to continuously rotate on the surface of the high pier bridge during its downward movement, enabling the water sprayed from the connecting pipe to be sprayed more evenly and comprehensively on the surface of the high pier bridge, ensuring comprehensive and meticulous maintenance of the high pier bridge and improving the quality of maintenance.

[0027] As a further embodiment of the present invention, the outer ring of the rotating disk 16 is connected to the driven gear ring 20, the driven gear ring 20 meshes with the lower gear 22, the inner ring of the rotating disk 16 is rotatably mounted with an embedded disk 17, the lower end of the embedded disk 17 is connected to the driving gear ring 19, and a movable tooth 14 is provided on one side of the sliding plate 13.

[0028] As a further embodiment of the present invention, a plurality of electric telescopic rods 23 are rotatably mounted on the lower surface of the rotating disk 16 corresponding to one side of the sliding plate 13. The lower end of the electric telescopic rod 23 is connected to the adjusting gear 18. When the adjusting gear 18 is in the upper position, it can simultaneously mesh with the moving tooth 14 and the active tooth ring 19. When the adjusting gear 18 is in the lower position, it only meshes with the moving tooth 14.

[0029] During operation, when adjusting the position of the connecting pipe 11, the electric telescopic rod 23 is opened. The electric telescopic rod 23 drives the adjusting gear 18 to move upward, so that the upper end of the adjusting gear 18 meshes with the active gear ring 19. The micro motor drives the adjusting gear to rotate, which in turn drives the active gear ring 19 to rotate. The rotation of the active gear ring 19 drives the adjusting gear 18 that it meshes with to rotate. The adjusting gear 18 interacts with the moving teeth 14, which in turn drives the sliding plate 13 to rotate, so that the sliding plate 13 gets infinitely close to the surface of the high pier bridge.

[0030] As a further embodiment of the present invention, each connecting pipe 11 is fixedly connected to a connecting hose 12. The end of the connecting hose 12 away from the connecting pipe 11 is fixedly connected to the storage box 9. A limiting groove is provided on the main mounting plate 7 at the position corresponding to the connecting hose 12. The lower end of the connecting pipe 11 is connected to the movable cover 10.

[0031] As a further embodiment of the present invention, the main mounting plate 7 is divided into an outer connecting plate and an inner connecting plate by a limiting groove. The inner connecting plate and the outer connecting plate are fixed by an upper U-shaped frame. The two ends of the U-shaped frame are respectively fixedly installed on the inner connecting plate and the outer connecting plate. The transmission ring 3 is located between the U-shaped frames and is rotatably connected to the U-shaped frame.

[0032] As a further embodiment of the present invention, the lower end of the main threaded rod 1 is connected to a load-bearing seat, the upper surface of the side mounting plate 8 is connected to a drive motor, the output end of the drive motor is connected to a drive gear, the drive gear meshes with the moving gear 2, the lower surface of the main mounting plate 7 is connected to a micro motor, the output end of the micro motor is connected to an adjustable gear, and the output end of the adjustable gear meshes with the active gear ring 19.

[0033] As a further embodiment of the present invention, the inside of the movable cover 10 is connected to a distance sensor, the Bluetooth module of the distance sensor is connected to a remote control terminal, and a main water pipe is fixedly connected to the outside of the storage box 9, and the main water pipe is fixedly connected to the lower water valve.

[0034] The device includes a main threaded rod 1, characterized in that: the main threaded rod 1 is threadedly connected to a threaded sleeve 21, the outer surface of the threaded sleeve 21 is connected to a side mounting plate 8, a main mounting plate 7 is installed between the side mounting plates 8, the side periphery of the main mounting plate 7 is connected to the side mounting plates 8, a windproof cover 6 is connected to the outer ring of the lower surface of the main mounting plate 7, a rotating disk 16 is connected to the lower surface of the main mounting plate 7, a mounting bracket 15 is connected to the rotating disk 16, a sliding plate 13 is slidably connected to the lower surface of the mounting bracket 15, one end of the sliding plate 13 is connected to a connecting pipe 11, a storage box 9 is rotatably mounted on the upper surface of the main mounting plate 7, and a transmission assembly is provided above the storage box 9, the transmission assembly can drive the rotating disk 16 to drive the connecting pipe 11 to rotate.

[0035] The transmission assembly includes a transmission ring 3 and multiple sets of transmission rods 5. The transmission rods 5 are rotatably connected to the main mounting plate 7. The upper end of the transmission rod 5 is connected to an upper gear 4, and the lower end of the transmission rod 5 is connected to a lower gear 22. The upper end of the threaded sleeve 21 is connected to a moving gear 2. The inner ring of the transmission ring 3 is provided with internal teeth 302, which mesh with the upper gear 4. The outer ring of the transmission ring 3 is provided with external teeth 301, which mesh with the moving gear 2.

[0036] The outer ring of the rotating disk 16 is connected to the driven gear ring 20, which meshes with the lower gear 22. The inner ring of the rotating disk 16 is rotatably mounted with an embedded disk 17, the lower end of which is connected to the driving gear ring 19. The sliding plate 13 is provided with a movable tooth 14 on one side.

[0037] Multiple electric telescopic rods 23 are rotatably mounted on the lower surface of the rotating disk 16 corresponding to one side of the sliding plate 13. The lower end of the electric telescopic rod 23 is connected to an adjusting gear 18. When the adjusting gear 18 is in the upper position, it can simultaneously mesh with the moving tooth 14 and the active tooth ring 19. When the adjusting gear 18 is in the lower position, it only meshes with the moving tooth 14.

[0038] Each connecting pipe 11 is connected to a connecting hose 12. The end of the connecting hose 12 away from the connecting pipe 11 is connected to the storage box 9. A limiting groove is provided on the main mounting plate 7 corresponding to the position of the connecting hose 12. The lower end of the connecting pipe 11 is connected to the movable cover 10.

[0039] The main mounting plate 7 is divided into an outer connecting plate and an inner connecting plate by a limiting groove. The inner connecting plate and the outer connecting plate are fixed by an upper U-shaped frame. The two ends of the U-shaped frame are respectively fixedly installed on the inner connecting plate and the outer connecting plate. The transmission ring 3 is located between the U-shaped frames and is rotatably connected to the U-shaped frame.

[0040] The lower end of the main threaded rod 1 is connected to the load-bearing seat, the upper surface of the side mounting plate 8 is connected to the drive motor, the output end of the drive motor is connected to the drive gear, the drive gear meshes with the moving gear 2, the lower surface of the main mounting plate 7 is connected to the micro motor, the output end of the micro motor is connected to the adjustable gear, and the output end of the adjustable gear meshes with the active gear ring 19.

[0041] The inside of the movable cover 10 is connected to a distance sensor, the Bluetooth module of the distance sensor is connected to a remote control terminal, and a main water pipe is fixedly connected to the outside of the storage box 9, and the main water pipe is fixedly connected to the lower water valve.

Claims

1. An automatic maintenance spraying system for the construction of high piers of highway bridges, comprising a main threaded rod (1), characterized in that: The main threaded rod (1) is threadedly connected to a threaded sleeve (21). The outer surface of the threaded sleeve (21) is connected to a side mounting plate (8). A main mounting plate (7) is installed between the side mounting plates (8). The side periphery of the main mounting plate (7) is connected to the side mounting plate (8). A windshield (6) is connected to the outer ring of the lower surface of the main mounting plate (7). A rotating disk (16) is connected to the lower surface of the main mounting plate (7). A mounting bracket (15) is connected to the rotating disk (16). A sliding plate (13) is slidably connected to the lower surface of the mounting bracket (15). One end of the sliding plate (13) is connected to a connecting pipe (11). A storage box (9) is rotatably installed on the upper surface of the main mounting plate (7). A transmission assembly is provided above the storage box (9). The transmission assembly can drive the rotating disk (16) to rotate the connecting pipe (11). The transmission assembly includes a transmission ring (3) and multiple sets of transmission rods. (5) The transmission rod (5) is rotatably connected to the main mounting plate (7). The upper end of the transmission rod (5) is connected to the upper gear (4), and the lower end of the transmission rod (5) is connected to the lower gear (22). The upper end of the threaded sleeve (21) is connected to the moving gear (2). The inner ring of the transmission ring (3) is provided with internal teeth (302), and the internal teeth (302) mesh with the upper gear (4). The outer ring of the transmission ring (3) is provided with external teeth (301), and the external teeth (301) mesh with the moving gear (2). The outer ring of the rotating disk (16) is connected to the driven gear ring (20), and the driven gear ring (20) meshes with the lower gear (22). The inner ring of the rotating disk (16) is rotatably mounted with an embedded disk (17), and the lower end of the embedded disk (17) is connected to the driving gear ring (19). The side of the sliding plate (13) is provided with a moving tooth (14).

2. The automatic maintenance spraying system for high pier construction of highway bridges according to claim 1, characterized in that: Multiple electric telescopic rods (23) are rotatably mounted on the lower surface of the rotating disk (16) corresponding to one side of the sliding plate (13). The lower end of the electric telescopic rod (23) is connected to an adjusting gear (18). When the adjusting gear (18) is in the upper position, it can simultaneously mesh with the moving tooth (14) and the active tooth ring (19). When the adjusting gear (18) is in the lower position, it only meshes with the moving tooth (14).

3. The automatic maintenance spraying system for high pier construction of highway bridges according to claim 1, characterized in that: The connecting pipe (11) is connected to the connecting hose (12). The end of the connecting hose (12) away from the connecting pipe (11) is connected to the storage box (9). A limiting groove is opened on the main mounting plate (7) corresponding to the position of the connecting hose (12). The lower end of the connecting pipe (11) is connected to the movable cover (10).

4. The automatic maintenance spraying system for high pier construction of highway bridges according to claim 1, characterized in that: The main mounting plate (7) is divided into an outer connecting plate and an inner connecting plate by a limiting groove. The inner connecting plate and the outer connecting plate are fixed by an upper U-shaped frame. The two ends of the U-shaped frame are respectively fixedly installed on the inner connecting plate and the outer connecting plate. The transmission ring (3) is located between the U-shaped frames and is rotatably connected to the U-shaped frame.

5. An automatic maintenance spraying system for the construction of high piers of highway bridges according to claim 1, characterized in that: The lower end of the main threaded rod (1) is connected to the load-bearing seat, the upper surface of the side mounting plate (8) is connected to the drive motor, the output end of the drive motor is connected to the drive gear, the drive gear meshes with the moving gear (2), the lower surface of the main mounting plate (7) is connected to the micro motor, the output end of the micro motor is connected to the adjustable gear, and the output end of the adjustable gear meshes with the active gear ring (19).

6. An automatic maintenance spraying system for high pier construction of highway bridges according to claim 3, characterized in that: The inside of the active cover (10) is connected to a distance sensor, the Bluetooth module of the distance sensor is connected to a remote control terminal, and the outside of the storage box (9) is fixedly connected to a main water pipe, which is fixedly connected to a lower water valve.

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