Folding spraying mechanism of unmanned aerial vehicle

By designing a springless folding spraying mechanism and utilizing the combination of a rotating seat, nut, and bolt, the problem of difficult maintenance of locking mechanisms in existing technologies is solved, enabling rapid folding and disassembly of the drone spraying mechanism and reducing maintenance costs and workload.

CN223835798UActive Publication Date: 2026-01-27李伟
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520198956.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-01-27
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

The locking mechanism of the existing folding spraying mechanism for drones contains a spring structure, which requires frequent inspection and replacement, resulting in high maintenance costs and a large amount of labor.

Method used

The design employs a springless folding spray mechanism, which replaces the traditional locking mechanism with the cooperation of four sets of rotating seats, four sets of No. 1 nuts, four sets of No. 1 bolts, and four sets of threaded holes. Combined with the semi-circular plate and bolt and nut design of the assembly mechanism, it enables the mechanism to be quickly folded and disassembled.

Benefits of technology

This reduces the need for frequent inspections and replacements of the locking mechanism, lowers maintenance costs and workload, and improves efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223835798U_ABST
    Figure CN223835798U_ABST
Patent Text Reader

Abstract

The utility model discloses a folding type spraying mechanism of an unmanned aerial vehicle, which relates to the field of unmanned aerial vehicles and comprises a square frame, a storage box is fixedly mounted in the square frame, an electric pump is fixedly mounted at the lower end of the storage box, a water inlet of the electric pump is fixed with a water outlet of the storage box, and the folding type spraying mechanism is arranged at the lower end of the square frame. An assembling mechanism is arranged on the outer wall of the square frame; the folding spraying mechanism comprises a supporting frame, four sets of spraying heads and four sets of first bolts, and four sets of concave bases are fixedly installed on the outer wall of the supporting frame. According to the folding spraying mechanism, the folding spraying mechanism can be conveniently folded, meanwhile, normal use of the mechanism can be ensured without frequently checking the locking mechanism, a large amount of time and the workload of workers are not consumed, frequent replacement of the folding spraying mechanism is not needed, and the maintenance cost is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a foldable spraying mechanism for UAVs. Background Technology

[0002] A folding spraying mechanism for drones is a device that allows the drone's spraying system to be folded up for easier transport and storage. This mechanism typically consists of a folding arm, spray heads, and a control system. With technological advancements, the application of folding spraying mechanisms for drones in agriculture has become increasingly widespread.

[0003] However, in the existing technology, due to the complex structure of the foldable spraying mechanism, it is necessary to regularly inspect and maintain each component of the folding mechanism in daily use to ensure its normal operation. However, the locking mechanism in the foldable spraying mechanism contains structures such as springs, which require frequent inspection to ensure that it can be used normally. This not only consumes a lot of time and increases the workload of the staff, but also requires frequent replacement, which increases the maintenance cost. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art and to propose a foldable spraying mechanism for drones.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A foldable spraying mechanism for a drone includes a frame, a storage box fixedly installed inside the frame, an electric pump fixedly installed at the lower end of the storage box, and the water inlet of the electric pump being fixed to the water outlet of the storage box. A foldable spraying mechanism is provided at the lower end of the frame, and an assembly mechanism is provided on the outer wall of the frame.

[0007] The folding spraying mechanism includes a support frame, four sets of spray heads, and four sets of No. 1 bolts. Four sets of concave seats are fixedly installed on the outer wall of the support frame. Rotating rods are rotatably installed inside each of the four sets of concave seats, and the circular plates of the four sets of rotating rods are respectively located at the upper ends of the four sets of concave seats. Rotating seats are fixedly installed on the outer walls of each of the four sets of rotating rods, and the four sets of rotating seats are respectively located inside the four sets of concave seats. A long cylinder is fixedly installed at one end of each of the four sets of rotating seats. A damping shaft seat is fixedly installed on the outer wall of each of the four sets of long cylinders. No. 1 nuts are welded to the lower ends of each of the four sets of concave seats, and threaded holes are opened at the lower ends of each of the four sets of rotating rods.

[0008] Preferably, the assembly mechanism includes eight sets of No. 1 semicircular plates evenly distributed on the frame, and each of the eight sets of No. 1 semicircular plates has a No. 2 semicircular plate at one end.

[0009] Preferably, the upper ends of the four sets of spray heads are rotatably mounted inside the four sets of damping bearings, and one end of the four sets of No. 1 bolts is threadedly connected to the four sets of No. 1 nuts and the four sets of threaded holes.

[0010] Preferably, four sets of connecting columns are fixedly installed on the upper end of the support frame, and the upper ends of the four sets of connecting columns are all fixed to the lower end of the frame.

[0011] Preferably, each of the eight sets of No. 1 semicircular plates is provided with No. 2 bolts at one end and at the upper and lower edges, and each of the eight sets of No. 2 semicircular plates is provided with No. 2 nuts at one end and at the upper and lower edges.

[0012] Preferably, one end of each of the eight sets of No. 1 semicircular plates is fixed to the outer wall of the frame, and the eight sets of No. 2 nuts are respectively threaded onto the outer wall of several sets of No. 2 bolts.

[0013] Preferably, a shaped pipe is fixedly installed at the outlet of the electric pump, and a connector is fixedly installed at the other end of the shaped pipe.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. This utility model features a folding spraying mechanism that allows for easy folding. By using four sets of rotating seats, four sets of No. 1 nuts, four sets of No. 1 bolts, and four sets of threaded holes, it replaces the spring-loaded structure in the traditional locking mechanism. This eliminates the need for frequent inspections of the locking mechanism, ensuring its normal operation. This not only saves time and reduces the workload of staff, but also eliminates the need for frequent replacements, thus reducing maintenance costs.

[0016] 2. This utility model has an assembly mechanism that can fix four sets of No. 1 fixing plates and four sets of No. 2 fixing plates to the drone frame, thereby enabling the spraying mechanism to be installed on the drone, and conversely, enabling the spraying mechanism to be removed from the drone. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a folding spraying mechanism for a drone is provided for this utility model.

[0018] Figure 2 This utility model provides a schematic diagram of the folding spraying mechanism structure in a folding spraying mechanism for a drone;

[0019] Figure 3 This utility model provides an exploded view of a portion of the folding spraying mechanism in a folding spraying mechanism for an unmanned aerial vehicle (UAV).

[0020] Figure 4A partial bottom view of a folding spraying mechanism for a drone is provided for this utility model.

[0021] Legend: 1. Frame; 11. Storage box; 12. Electric pump; 13. Shaped pipe; 14. Connector; 2. Folding spraying mechanism; 21. Support frame; 22. Spray head; 23. Concave seat; 24. Rotating seat; 25. Long cylinder; 26. Connecting column; 27. Damping shaft seat; 28. Rotating rod; 29. ​​Nut No. 1; 210. Bolt No. 1; 211. Threaded hole; 3. Assembly mechanism; 31. Semicircular plate No. 1; 32. Semicircular plate No. 2; 33. Bolt No. 2; 34. Nut No. 2. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a foldable spraying mechanism for a drone, including a frame 1, a storage box 11 fixedly installed inside the frame 1, an electric pump 12 fixedly installed at the lower end of the storage box 11, and the water inlet of the electric pump 12 is fixed to the water outlet of the storage box 11. A foldable spraying mechanism 2 is provided at the lower end of the frame 1, and an assembly mechanism 3 is provided on the outer wall of the frame 1.

[0025] The folding spraying mechanism 2 includes a support frame 21, four sets of spray heads 22, and four sets of No. 1 bolts 210. Concave seats 23 are fixedly installed on all four sides of the outer wall of the support frame 21. Rotating rods 28 are rotatably installed inside each of the four sets of concave seats 23. The circular plate of the rotating rod 28 is located at the upper end of the concave seat 23. Rotating seats 24 are fixedly installed on the outer walls of each of the four sets of rotating rods 28, and the four rotating seats 24 are respectively located inside the four sets of concave seats 23. A long cylinder 25 is fixedly installed at one end of each of the four sets of rotating seats 24. A damping shaft seat 27 is fixedly installed on the outer wall of each long cylinder 25. The lower end of each of the four spray heads 22 is welded with a No. 1 nut 29. The lower end of each of the four rotating rods 28 is provided with a threaded hole 211. The upper ends of the four sets of spray heads 22 are rotatably installed inside the corresponding damping bearings 27. One end of each of the four sets of No. 1 bolts 210 is threadedly connected to the corresponding No. 1 nut 29 and the four sets of threaded holes 211. The upper ends of the four sides of the support frame 21 are fixedly installed with connecting columns 26. The upper ends of the four sets of connecting columns 26 are fixed to the lower end of the square frame 1. The outlet of the electric pump 12 is fixedly installed with a special-shaped pipe 13. The other end of the special-shaped pipe 13 is fixedly installed with a connector 14.

[0026] The specific setup and function of this embodiment are described below. By flipping the four sets of spray heads 22 one by one, the four sets of spray heads 22 move inside the four sets of damping bearing seats 27 respectively until the four sets of spray heads 22 are flush with the four sets of long cylinders 25, allowing the four sets of spray heads 22 to be folded. Then, by rotating the four sets of No. 1 bolts 210 one by one, the four sets of No. 1 bolts 210 rotate inside the four sets of No. 1 nuts 29 and the four sets of threaded holes 211 respectively, and the four sets of No. 1 bolts 210 gradually move out of the four sets of threaded holes 211. After that, the four sets of long cylinders 25 are moved one by one towards the outer wall of the support frame 21. The long cylinders 25 are rotated by the rotating seat. 24 drives the rotating rod 28 to rotate, so that the four sets of rotating rods 28 rotate inside the four sets of concave seats 23 respectively, until the four sets of long cylinders 25 are flush with the four sides of the support frame 21, which can facilitate the folding spraying mechanism 2 to be folded. Through the cooperation between the four sets of rotating seats 24, the four sets of No. 1 nuts 29, the four sets of No. 1 bolts 210 and the four sets of threaded holes 211, the structure with springs in the traditional locking mechanism is replaced. Thus, the normal use of the mechanism can be ensured without frequent inspection of the locking mechanism. This not only saves a lot of time and reduces the workload of the staff, but also reduces maintenance costs by eliminating the need for frequent replacement.

[0027] The four sets of connecting columns 26 can support the support frame 21, allowing the support frame 21 to be suspended below the storage box 11. At the same time, the support frame 21 can also shield the electric pump 12, thus providing a protective effect.

[0028] Example 2: Figure 1 and Figure 4As shown, the assembly mechanism 3 includes eight sets of No. 1 semicircular plates 31 evenly distributed on the frame 1, that is, each side of the frame 1 has two sets of No. 1 semicircular plates 31. One end of each of the eight sets of No. 1 semicircular plates 31 is provided with a No. 2 semicircular plate 32. One end of each of the eight sets of No. 1 semicircular plates 31 and located at the upper and lower edges is provided with a No. 2 bolt 33. One end of each of the eight sets of No. 2 semicircular plates 32 and located at the upper and lower edges is provided with a No. 2 nut 34. One end of each of the eight sets of No. 1 semicircular plates 31 is fixed to the outer wall of the frame 1. The eight sets of No. 2 nuts 34 are respectively threaded on the outer wall of several sets of No. 2 bolts 33.

[0029] The overall effect of this embodiment is as follows: by bringing eight sets of No. 1 semicircular plates 31 into contact with the outer wall of the drone frame, and then bringing eight sets of No. 2 semicircular plates 32 into contact with the eight sets of No. 1 semicircular plates 31 one by one, then inserting several sets of No. 2 bolts 33 into the two circular holes of the eight sets of No. 1 semicircular plates 31 and No. 2 semicircular plates 32 one by one, then picking up several sets of No. 2 nuts 34 one by one and putting them on the outer wall of the several sets of No. 2 bolts 33, and then turning the several sets of No. 2 nuts 34 one by one, so that the several sets of No. 2 nuts 34 rotate on the threads of the several sets of No. 2 bolts 33 until they are tightened, thereby fixing the eight sets of No. 1 semicircular plates 31 and eight sets of No. 2 semicircular plates 32 onto the drone frame, thus enabling the spraying mechanism to be installed on the drone, and conversely, enabling the spraying mechanism to be removed from the drone.

[0030] The usage and working principle of this device are as follows: First, after spraying, when folding is required, the four spray heads 22 are rotated one by one, allowing them to move within the four damping bearings 27 until they are flush with the four long cylinders 25, enabling folding. Then, the four No. 1 bolts 210 are rotated one by one, allowing them to rotate within the four No. 1 nuts 29 and the four threaded holes 211, gradually moving out of the threaded holes 211. Afterward, the four long cylinders 25 are moved one by one towards the outer wall of the support frame 21. The rotating seat 24 drives the rotating rod 28 to rotate, so that the four sets of rotating rods 28 rotate inside the four sets of concave seats 23 respectively, until the four sets of long cylinders 25 are flush with the four sides of the support frame 21, which can facilitate the folding spraying mechanism 2 to be folded. Finally, by rotating the several sets of No. 2 bolts 33 and several sets of No. 2 nuts 34 one by one, the several sets of No. 2 nuts 34 are screwed apart from the outer wall of the several sets of No. 2 bolts 33 one by one. Then, the several sets of No. 2 semicircular plates 32 are taken out from one side of the eight sets of No. 1 semicircular plates 31 one by one. The spraying mechanism can be disassembled from the drone for easy separate placement.

[0031] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A folding spraying mechanism for a drone, characterized in that: Includes a frame (1), inside which a storage box (11) is fixedly installed, and at the lower end of the storage box (11) an electric pump (12) is fixedly installed, with the inlet of the electric pump (12) fixed to the outlet of the storage box (11), and at the lower end of the frame (1) a folding spraying mechanism (2), and on the outer wall of the frame (1) an assembly mechanism (3). The folding spraying mechanism (2) includes a support frame (21), four sets of spray heads (22) and four sets of No. 1 bolts (210). Four sets of concave seats (23) are fixedly installed on the outer wall of the support frame (21). Rotating rods (28) are rotatably installed inside the four sets of concave seats (23). The circular plates of the four sets of rotating rods (28) are located at the upper ends of the four sets of concave seats (23). Rotating seats (24) are fixedly installed on the outer wall of the four sets of rotating rods (28). The four sets of rotating seats (24) are respectively set inside the four sets of concave seats (23). A long cylinder (25) is fixedly installed at one end of the four sets of rotating seats (24). A damping shaft seat (27) is fixedly installed on the outer wall of the four sets of long cylinders (25). No. 1 nuts (29) are welded to the lower ends of the four sets of concave seats (23). Threaded holes (211) are opened at the lower ends of the four sets of rotating rods (28).

2. The folding spraying mechanism for a drone according to claim 1, characterized in that: The assembly mechanism (3) includes eight sets of first semicircular plates (31) evenly distributed on the frame (1), and each of the eight sets of first semicircular plates (31) is provided with a second semicircular plate (32) at one end.

3. The folding spraying mechanism for a drone according to claim 1, characterized in that: The upper ends of the four sets of spray heads (22) are rotatably installed inside the four sets of damping bearings (27), and one end of the four sets of No. 1 bolts (210) is threadedly connected to the four sets of No. 1 nuts (29) and the four sets of threaded holes (211).

4. The folding spraying mechanism for a drone according to claim 3, characterized in that: Four sets of connecting columns (26) are fixedly installed on the upper end of the support frame (21), and the upper ends of the four sets of connecting columns (26) are all fixed to the lower end of the square frame (1).

5. The folding spraying mechanism for a drone according to claim 2, characterized in that: Each of the eight sets of No. 1 semicircular plates (31) is provided with No. 2 bolts (33) at one end and at the upper and lower edges, and each of the eight sets of No. 2 semicircular plates (32) is provided with No. 2 nuts (34) at one end and at the upper and lower edges.

6. The folding spraying mechanism for a drone according to claim 5, characterized in that: One end of each of the eight sets of No. 1 semicircular plates (31) is fixed to the outer wall of the square frame (1), and the eight sets of No. 2 nuts (34) are threaded onto the outer wall of several sets of No. 2 bolts (33).

7. A folding spraying mechanism for a drone according to any one of claims 1 to 6, characterized in that: The outlet of the electric pump (12) is fixedly installed with a special-shaped pipe (13), and the other end of the special-shaped pipe (13) is fixedly installed with a connector (14).