An unmanned aerial vehicle for bridge deck waterproof coating spraying

Abstract

The utility model relates to the field of industrial unmanned plane discloses an unmanned plane for bridge waterproof coating spraying, including frame, the fixed frame one is fixedly connected with the frame bottom, the fixed frame one both ends are fixedly connected with the machine leg, the machine leg is away from the fixed frame one one end fixedly connected with the support rod, the frame bottom is fixedly connected with two fixed frame two, two fixed frame two between fixedly connected with the crosspiece, the crosspiece outside is provided with two rings, two similar rings bottom all are fixedly connected with the base, in the utility model, through the locking structure that handle, pull column, the resistance board, lock tongue and spring one constitute, only need to pull handle to drive lock tongue to withdraw, after standard interface installation in place loosens handle, spring one can push lock tongue reset realizes fixed, whole process does not need complicated procedure, greatly shortens the time of spray head replacement, improves the flexibility and efficiency of operation.

Description

Technical Field

[0001] This utility model relates to the field of industrial drones, and in particular to a drone used for spraying waterproof coatings on bridge decks. Background Technology

[0002] The emergence of drones for spraying waterproof coatings on bridge decks stems from the problems of low efficiency, high safety risks of high-altitude operations, and uneven coating thickness in traditional bridge deck waterproof coating spraying. Traditional suspended platform operations not only have high daily labor costs, but are also prone to inadequate base treatment or leakage at joints due to operational errors. Drones for spraying waterproof coatings on bridge decks are mainly used in the bridge construction and maintenance industry, and have also been extended to the field of waterproof coating construction for infrastructure such as tunnels and dams.

[0003] In terms of structure, bridge deck waterproofing coating spraying drones typically include a fuselage and power system, a control system, an intelligent spraying system, and sensor modules. Their main functions are to improve efficiency significantly compared to traditional methods; optimize costs by reducing material waste and labor input; ensure quality by achieving more uniform coating thickness through precise control; and eliminate the risks of high-altitude operations, making construction safer. Currently available bridge deck waterproof coating spraying drones are complicated to operate when changing different models of nozzles. Furthermore, due to the working environment, they fly at low altitudes for extended periods, causing their feet to frequently hit the ground, which can damage the internal components of the drone. Therefore, a drone for bridge deck waterproof coating spraying is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a drone for spraying waterproof coatings on bridge decks, aiming to improve the problem of complicated nozzle replacement operations.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a drone for spraying waterproof coating on bridge decks, comprising a frame, a fixed frame 1 fixedly connected to the bottom of the frame, legs fixedly connected to both ends of the fixed frame 1, a support rod fixedly connected to the end of each leg away from the fixed frame 1, two fixed frames 2 fixedly connected to the bottom of the frame, a crossbar fixedly connected between the two fixed frames 2, two rings provided on the outside of the crossbar, a base fixedly connected to the bottom of each of the two adjacent rings, a standard interface slidably connected inside the base, a spray nozzle provided at the bottom of one of the standard interfaces, a coating tank provided at the bottom of the other standard interface, a water pump fixedly connected to the outside of the coating tank, the output end of the water pump fixedly connected to the input end of the spray nozzle, a lock housing fixedly connected inside the base, a stop plate slidably connected inside the lock housing, a locking tongue fixedly connected to one side of the stop plate, a pull column fixedly connected to the other side of the stop plate, and a spring sleeved on the outside of the pull column.

[0006] As a further description of the above technical solution: Both ends of the support rod are fixedly connected to buffer shells, the bottom of the buffer shells are fixedly connected to support legs, the bottom of the support legs are fixedly connected to buffer bases, the buffer bases are slidably connected to limit plates, the bottom of the limit plates are fixedly connected to pillars, the bottom of the pillars is fixedly connected to buffer pads, and the top of the pillars is fixedly connected to spring two.

[0007] As a further description of the above technical solution: Four arms are fixedly connected to the outside of the frame, and a propeller is installed at the end of each arm away from the frame.

[0008] As a further description of the above technical solution: One end of the spring is fixedly connected to the inner wall of the lock housing, and the other end of the spring is fixedly connected to the outside of the abutment plate.

[0009] As a further description of the above technical solution: A handle is fixedly connected to the end of the pull post away from the abutment, and the locking tongue is slidably connected inside the standard interface.

[0010] As a further description of the above technical solution: The abutment plate abuts against the inner wall of the lock housing.

[0011] As a further description of the above technical solution: The end of the second spring away from the limiting plate is fixedly connected to the inner wall of the buffer base, and the limiting plate abuts against the inner wall of the buffer base.

[0012] As a further description of the above technical solution: The support column is slidably connected inside the buffer base.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the drones spraying the waterproof coating on the bridge deck... The locking structure, consisting of a handle, pull post, stop plate, locking tongue, and spring, allows the locking tongue to retract simply by pulling the handle. Once the standard interface is installed, releasing the handle will allow the spring to push the locking tongue back to its original position and secure it. The entire process requires no complicated steps, significantly reducing the time required to replace the nozzle and improving the flexibility and efficiency of the operation.

[0014] The bottom-mounted buffer structure effectively mitigates the impact of bumps during low-altitude flight, reducing the risk of damage to internal components. When the drone experiences turbulence or its feet touch the ground while flying near the ground, the buffer pad absorbs the force first, which is then transferred to spring two via the support column. Spring two absorbs the impact during its extension and contraction, while the limiting plate ensures the stable operation of the buffer components. This prevents damage to components caused by frequent impacts from the feet during prolonged low-altitude flight, extends the equipment's lifespan, and ensures continuous and stable painting operations. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a drone for spraying waterproof coating on bridge surfaces, as proposed in this utility model. Figure 2 This is a schematic diagram of the propeller structure of a drone used for spraying waterproof coating on bridge surfaces, as proposed in this utility model. Figure 3 This is a schematic diagram of the structure of a fixed bracket for a drone used for spraying waterproof coating on bridge surfaces, as proposed in this utility model. Figure 4 This is a schematic diagram of the nozzle structure of a drone for spraying waterproof coating on bridge decks, as proposed in this utility model. Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the support structure of a drone used for spraying waterproof coating on bridge decks, as proposed in this utility model.

[0016] In the diagram: 1. Frame; 2. Arm; 3. Propeller; 4. Mounting bracket one; 5. Leg; 6. Support rod; 7. Buffer housing; 8. Mounting bracket two; 9. Crossbar; 10. Ring; 11. Base; 12. Standard interface; 13. Lock housing; 14. Stop plate; 15. Locking tongue; 16. Pull column; 17. Handle; 18. Spring one; 19. Nozzle; 20. Paint tank; 21. Water pump; 22. Support leg; 23. Buffer base; 24. Limiting plate; 25. Spring two; 26. Support column; 27. Buffer pad. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 , Figure 3 and Figure 5 This utility model provides an embodiment of a drone for spraying waterproof coating on bridge surfaces, comprising a frame 1. The frame 1 serves as the mounting base for the overall structure of the drone, providing a stable assembly carrier for each component. A fixing frame 4 is fixedly connected to the bottom of the frame 1, which securely connects the legs 5 to the frame 1, forming an integral part of the bottom support structure and the fuselage. Legs 5 are fixedly connected to both ends of the fixing frame 4, and the legs 5 can transfer the supporting force of the fixing frame 4 to the support rod 6, bearing part of the fuselage weight when operating near the ground. The end of the leg 5 away from the fixing frame 4 is fixedly connected to the support rod 6, which expands the force-bearing range of the bottom support, making the drone less prone to tilting due to center of gravity shift when flying close to the bridge surface at ultra-low speed. Two fixing frames 8 are fixedly connected to the bottom of the frame 1, symmetrically distributed, providing balanced support for the crossbar 9. A crossbar 9 is fixedly connected between the two fixing frames 8, providing an installation base for adjusting the position of the ring 10. To accommodate different bridge deck widths requiring spraying, two rings 10 are installed on the outside of the crossbar 9. The rings 10 can move flexibly along the crossbar 9, facilitating the adjustment of the distance between the nozzle 19 and the paint tank 20 according to the spraying range. The bottoms of the two adjacent rings 10 are fixedly connected to a base 11, which provides installation and limiting space for the standard interface 12. The standard interface 12 is slidably connected inside the base 11. One of the standard interfaces 12 has a nozzle 19 at its bottom, which can spray the paint in a specific shape to meet the uniform spraying requirements of the bridge deck coating. The other standard interface 12 has a paint tank 20 at its bottom, which can store a sufficient amount of waterproof paint to meet the continuous supply requirements during ultra-low speed operation. A water pump 21 is fixedly connected to the outside of the paint tank 20, which can stably deliver the paint in the paint tank 20 to the nozzle 19. The output end of the water pump 21 is fixedly connected to the input end of the nozzle 19 to ensure stable pressure of the paint during delivery and avoid material interruption or accumulation during ultra-low altitude spraying. Reference Figure 3 and Figure 6Both ends of the support rod 6 are fixedly connected to buffer shells 7. The buffer shells 7 can protect the bottom buffer structure and reduce the interference of debris during operation. The bottom of the buffer shell 7 is fixedly connected to the support leg 22. The support leg 22 can connect the buffer base 23 to the buffer shell 7. The bottom of the support leg 22 is fixedly connected to the buffer base 23. The buffer base 23 provides a closed installation space for the internal buffer components. The buffer base 23 has a sliding limit plate 24 inside. The limit plate 24 can limit the sliding direction of the support column 26 to prevent deviation. The bottom of the limit plate 24 is fixedly connected to the support column 26. The support column 26 can transmit the impact force received by the buffer pad 27 to the second spring 25. The bottom of the support column 26 is fixedly connected to the buffer pad 27. The buffer pad 27 can directly contact the bridge surface or the ground to reduce the vibration caused by hard collision. The top of the support column 26 is fixedly connected to the second spring 25. The second spring 25 can absorb the impact force through its own extension and contraction to ensure the stability of the machine body when taking off or operating near the ground. Reference Figure 1 Four arms 2 are fixedly connected to the outside of the frame 1. The four arms 2 are symmetrically distributed, which can provide a balanced installation position for the propellers 3. The propellers 3 are installed at the ends of the arms 2 away from the frame 1. The propellers 3 work together to precisely control the lift and flight attitude of the UAV, enabling it to achieve ultra-low speed and stable flight near the ground on the bridge. Reference Figure 5 One end of spring 18 is fixedly connected to the inner wall of lock housing 13, and the other end of spring 18 is fixedly connected to the outside of stop plate 14. This connection method allows spring 18 to continuously apply elastic force to stop plate 14, ensuring the locking stability of lock tongue 15. Reference Figure 5A lock housing 13 is fixedly connected inside the base 11. The lock housing 13 provides a stable mounting cavity for the internal locking components, ensuring that the locking mechanism will not shift due to slight vibrations when the drone is operating near the ground. A stop plate 14 is slidably connected inside the lock housing 13. This sliding fit allows the stop plate 14 to move stably inside the lock housing 13, providing a power transmission path for the extension and retraction of the latch 15, adapting to the action requirements when the components are locked or unlocked. A latch 15 is fixedly connected to one side of the stop plate 14. The latch 15 can extend or retract with the movement of the stop plate 14. When extended, it can be embedded in the standard interface 12, firmly fixing it in the base 11, preventing the standard interface 12 from loosening when the drone is flying at ultra-low speeds for spraying. A pull post 16 is fixedly connected to the other side of the stop plate 14. The pull post 16 provides a direct force-bearing component for controlling the movement of the stop plate 14. Operators can slide the stop plate 14 by pulling the pull column 16, thereby controlling the state of the locking tongue 15. The operation is convenient and adaptable to the needs of quick adjustment during operation. A spring 18 is sleeved on the outside of the pull column 16. The spring 18 is limited to the outside of the pull column 16 and can be compressed or stretched when the pull column 16 moves the stop plate 14. After releasing the pull column 16, the stop plate 14 can be pushed back by its own elasticity, ensuring that the locking tongue 15 can be stably locked and ensuring the stability of the component connection during operation. A handle 17 is fixedly connected to the end of the pull column 16 away from the stop plate 14. The handle 17 provides the operator with a convenient force point to manually control the extension and retraction of the locking tongue 15. The locking tongue 15 is slidably connected inside the standard interface 12. Through cooperation with the standard interface 12, the component can be quickly locked or unlocked, adapting to the needs of component replacement during operation. Reference Figure 5 The stop plate 14 abuts against the inner wall of the lock housing 13. This abutting relationship can limit the excessive movement of the stop plate 14 and ensure that the elastic force of the spring 18 can act stably on the bolt 15. Reference Figure 6 The end of the spring 25 away from the limiting plate 24 is fixedly connected to the inner wall of the buffer base 23. The limiting plate 24 abuts against the inner wall of the buffer base 23. The abutment between the limiting plate 24 and the inner wall of the buffer base 23 can prevent the limiting plate 24 from detaching from the buffer base 23, thus ensuring the integrity of the buffer structure. Reference Figure 6 The support column 26 is slidably connected inside the buffer base 23, allowing the support column 26 to extend and retract flexibly with the impact force, forming an effective buffering mechanism with the spring 25, adapting to the complex working conditions when working near the ground.

[0019] Working principle: When selecting a nozzle, you can choose according to the actual situation of the bridge surface: if the bridge surface is wide, you can choose a fan-shaped nozzle with a wider coverage area; if you need to spray a thinner fine coating, you can choose a small-flow conical nozzle to ensure that it meets the uniform spraying requirements of the bridge surface coating. Pull the handle 17 outward, and the pull column 16 will drive the stop plate 14 to slide inside the lock housing 13. While the stop plate 14 compresses the spring 18, it will drive the locking tongue 15 to retract into the lock housing 13. At this time, align the standard interface 12 on the top of the selected nozzle 19 with the opening of the base 11, and slide the standard interface 12 into the base 11. After the standard interface 12 is fully embedded, release the handle 17. The spring 18 will push the stop plate 14 back to its original position by its own elasticity. While the stop plate 14 abuts against the inner wall of the lock housing 13, it will drive the locking tongue 15 to slide into the standard interface 12, and firmly fix the standard interface 12 in the base 11, thus completing the installation of the nozzle 19. The drone is then activated: the propellers 3 at the ends of the external arms 2 of the frame 1 work together to precisely control the lift and flight attitude of the drone, enabling it to achieve stable flight at ultra-low speeds near the ground on the bridge surface; during flight, the fixed frame 4 at the bottom of the frame 1 transmits the support force to the support rod 6 through the legs 5. The support rod 6 expands the support force range at the bottom, preventing the drone from tilting due to the shift of the center of gravity; if the drone experiences slight bumps when it is close to the bridge surface, the buffer pads 27 under the buffer shells 7 at both ends of the support rod 6 first contact the bridge surface or near the ground, and the buffer pads 27 transmit the impact force to the support column 26. The support column 26 slides inside the buffer base 23 and drives the limit plate 24 to move. The limit plate 24 compresses the second spring 25, and the second spring 25 absorbs the impact force through extension and contraction, ensuring the stability of the fuselage and preventing vibration from affecting the spraying accuracy. Meanwhile, the waterproof coating stored in the coating tank 20 is stably transported by the water pump 21. The water pump 21 sends the coating from the output end to the input end of the nozzle 19 through the pipeline, ensuring stable coating delivery pressure. The nozzle 19 then sprays the coating in a preset shape to complete the uniform spraying of the bridge deck waterproof coating. Throughout the process, the locking tongue 15 inside the lock housing 13 is always firmly embedded in the standard interface 12 to prevent the nozzle 19 from loosening due to flight vibration, ensuring continuous and stable operation.

[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drone for spraying waterproof coating on bridge decks, comprising a frame (1), characterized in that: The frame (1) is fixedly connected to a first fixed frame (4) at its bottom. The first fixed frame (4) is fixedly connected to two legs (5) at both ends. The leg (5) is fixedly connected to a support rod (6) at the end away from the first fixed frame (4). The frame (1) is fixedly connected to two second fixed frames (8) at its bottom. A crossbar (9) is fixedly connected between the two second fixed frames (8). Two rings (10) are provided on the outside of the crossbar (9). The bottom of the two adjacent rings (10) is fixedly connected to a base (11). A standard interface (12) is slidably connected inside the base (11). One of the standard interfaces is... A nozzle (19) is provided at the bottom of the interface (12), and a paint tank (20) is provided at the bottom of another standard interface (12). A water pump (21) is fixedly connected to the outside of the paint tank (20). The output end of the water pump (21) is fixedly connected to the input end of the nozzle (19). A lock shell (13) is fixedly connected inside the base (11). A stop plate (14) is slidably connected inside the lock shell (13). A locking tongue (15) is fixedly connected to one side of the stop plate (14). A pull column (16) is fixedly connected to the other side of the stop plate (14). A spring (18) is sleeved on the outside of the pull column (16).

2. The unmanned aerial vehicle for bridge deck waterproof coating spraying according to claim 1, characterized in that: Both ends of the support rod (6) are fixedly connected to buffer shells (7), the bottom of the buffer shell (7) is fixedly connected to a support leg (22), the bottom of the support leg (22) is fixedly connected to a buffer base (23), the buffer base (23) is slidably connected to a limit plate (24), the bottom of the limit plate (24) is fixedly connected to a support column (26), the bottom of the support column (26) is fixedly connected to a buffer pad (27), and the top of the support column (26) is fixedly connected to a spring (25).

3. The unmanned aerial vehicle for bridge deck waterproof coating spraying according to claim 1, characterized in that: The frame (1) is externally fixedly connected to four arms (2), and a propeller (3) is installed at the end of the arm (2) away from the frame (1).

4. The unmanned aerial vehicle for bridge deck waterproof coating spraying according to claim 1, characterized in that: One end of the spring (18) is fixedly connected to the inner wall of the lock housing (13), and the other end of the spring (18) is fixedly connected to the outside of the abutment plate (14).

5. The unmanned aerial vehicle for bridge deck waterproof coating spraying according to claim 1, characterized in that: A handle (17) is fixedly connected to the end of the pull post (16) away from the abutment (14), and the locking tongue (15) is slidably connected inside the standard interface (12).

6. The unmanned vehicle for waterproof coating spraying of bridge deck according to claim 1, characterized in that: The abutment (14) abuts against the inner wall of the lock housing (13).

7. The unmanned aerial vehicle for bridge deck waterproof coating spraying according to claim 2, characterized in that: The end of the second spring (25) away from the limiting plate (24) is fixedly connected to the inner wall of the buffer base (23), and the limiting plate (24) abuts against the inner wall of the buffer base (23).

8. The unmanned aerial vehicle for bridge deck waterproof coating spraying according to claim 2, characterized in that: The support column (26) is slidably connected inside the buffer base (23).

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