Unmanned aerial vehicle spraying device

Abstract

The invention relates to an unmanned aerial vehicle spraying device, and belongs to the technical field of spraying devices, the unmanned aerial vehicle spraying device comprises a spraying mechanism and further comprises an inverted U-shaped frame, the spraying mechanism is rotatably mounted in a U-shaped groove in the bottom of the U-shaped frame, and the U-shaped frame is mounted on an unmanned aerial vehicle device; the two ends of the U-shaped frame are each provided with a connecting mechanism in a penetrating mode, a connector is installed at the top end of the U-shaped frame and communicates with the connecting mechanism through a first connecting pipe, and the connecting mechanism is rotationally connected with the material spraying mechanism; the U-shaped frame is further provided with a driving mechanism used for driving the material spraying mechanism to swing. The deflection angle of the spray head is large, and the spray head is not affected by limiting of the pipeline, so that some dead corners can be sprayed, the spraying effect of equipment is improved, and meanwhile, the situation that the spraying effect of the equipment is affected due to the fact that the pressure in the pipeline is affected due to bending or shaking of the pipeline can be avoided.

Description

Technical Field

[0001] The invention relates to a spraying device for an unmanned aerial vehicle (UAV), belonging to the technical field of spraying devices. Background Art

[0002] In power grid systems, the insulation performance of power equipment is directly related to the safety and stability of power transmission. As power equipment evolves toward higher voltages and larger capacities, the performance requirements for insulation materials are also increasing. Traditional insulation materials are susceptible to environmental factors (such as rain, dust, and contamination) over long-term operation, leading to degradation of surface insulation performance and even causing faults such as flashover and breakdown, seriously threatening the reliable operation of the power grid.

[0003] In recent years, super-amphiphobic insulating materials have become a research hotspot in the field of power equipment insulation due to their excellent waterproof, dustproof and insulating properties. Through their special surface microstructure and low surface energy chemical composition, these materials achieve extreme repellency to water and dust, thereby significantly improving the long-term stability of power equipment in harsh environments. However, since power equipment (such as insulators, bushings, etc.) often have complex structures such as multiple curved surfaces and grooves, and in traditional spraying methods, due to the limiting effect of the paint delivery pipeline, the nozzle is often hindered by the position of the pipeline, resulting in a limited deflection angle, which makes traditional spraying devices prone to spray leakage or incomplete edge coverage. At the same time, due to the traditional pipeline supply method, the bending or shaking of the pipeline will affect the spraying effect.

[0004] A spraying device with a replaceable nozzle disclosed in the Chinese utility model patent with publication number CN214390756U includes a frame, two slide rails are fixedly connected to the top and bottom of the right side of the frame, two sliders are movably sleeved in the two slide rails, a slide rod is fixedly connected to the top of the slider at the bottom, the top of the slide rod is fixedly connected to the bottom of the slider at the top, a sleeve is movably sleeved along the longitudinal direction of the slide rod, and a positioning piece is fixedly connected to the bottom of the sleeve.

[0005] The above reference example adjusts the position of the spray gun seat by controlling the sliding of the sleeve on the slide rod, and the feed pipe of the spray gun seat also moves with the spray gun seat. Since the spray gun seat can only move up and down on the slide rod, its spraying range is limited, and the frequent movement of the feed pipe will also affect the spraying effect. Therefore, improvement is urgently needed. Summary of the Invention

[0006] In order to overcome the shortcomings of the above-mentioned prior art, the present invention designs a drone spraying device, the deflection angle of the nozzle of which is large and will not be affected by the limitation of the pipeline, so that some dead corners can be sprayed, thereby improving the spraying effect of the equipment. At the same time, it can also avoid the bending or shaking of the pipeline, which may affect the pressure in the pipe and then affect the spraying effect of the equipment.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A drone spraying device includes a spraying mechanism and an inverted U-shaped frame, wherein the spraying mechanism is rotatably installed in a U-shaped groove at the bottom of the U-shaped frame, and the U-shaped frame is installed on the drone device; connecting mechanisms are provided at both ends of the U-shaped frame, and a connecting head is installed at the top of the U-shaped frame, the connecting head is connected to the connecting mechanism through a connecting pipe 1, the connecting mechanism is rotatably connected to the spraying mechanism, and the connecting head conveys paint and high-pressure gas to the spraying mechanism respectively through a connecting pipe 1 and the connecting mechanism; a driving mechanism for driving the spraying mechanism to swing is also installed on the U-shaped frame.

[0009] Furthermore, the connecting mechanism includes a shell, one end of which is provided with a feed pipe 1 for inputting paint and a vent pipe 1 for inputting high-pressure gas, and the feed pipe 1 and the vent pipe 1 are respectively connected to two connecting pipes 1;

[0010] The other end of the shell is rotatably connected with a connecting ring 1, and the outer end of the connecting ring 1 is provided with a vent pipe 2 and a material feeding pipe 2, the vent pipe 2 is connected to the vent pipe 1, and the material feeding pipe 2 is connected to the material feeding pipe 1;

[0011] The material spraying mechanism is fixedly connected to the connecting ring through a fixing plate.

[0012] Furthermore, a central tube is fixedly installed inside the shell via a support plate, a raised plate is fixedly connected to the inner end of the connecting ring 1, a cavity is formed between the raised plate and the inner end surface of the connecting ring 1, the cavity is independent of the internal space of the shell, and the second vent pipe is connected to the internal space of the shell;

[0013] A connecting pipe is provided on one side of the raised plate away from the second feeding pipe. The free end of the connecting pipe is rotatably connected to the central pipe. The cavity is connected to the connecting pipe and the second feeding pipe.

[0014] Furthermore, the central tube, the connecting tube and the outer shell of the cylindrical structure are concentrically arranged.

[0015] Furthermore, the spraying mechanism includes a supply mechanism and a spraying assembly detachably sleeved on the end of the supply mechanism;

[0016] The supply mechanism includes a hollow column 1, a hollow column 2 is fixedly installed at one end of the hollow column 1 away from the spray assembly, a receiving chamber 1 is provided between the hollow column 2 and the inner wall of the hollow column 1, the receiving chamber 2 is provided inside the hollow column 1, and a connecting pipe 2 and a connecting pipe 3 are provided on the side of the hollow column 1, the receiving chamber 1 receives the high-pressure gas delivered by the connecting mechanism through the connecting pipe 2, and the receiving chamber 2 receives the paint delivered by the connecting mechanism through the connecting pipe 3;

[0017] The hollow column 1 is internally sleeved with a movable component, and the high-pressure gas in the accommodating chamber 1 and the paint in the accommodating chamber 2 are transported to the spraying component through the movable component and then sprayed out after being combined.

[0018] Furthermore, the spray assembly includes a spray head, a nozzle is provided at the outer end of the spray head, a feed pipe for receiving paint is provided at the inner end of the spray head, and a plurality of gas supply pipes for receiving high-pressure gas are evenly arranged around the feed pipe.

[0019] Furthermore, a plurality of sliders are evenly fixed to the side of the nozzle along the circumferential direction, and a plurality of chute grooves are provided on the inner side wall of the hollow column, the number of which is the same as that of the sliders. The chute grooves are J-shaped, and the sliders are movably mounted in the chute grooves in a one-to-one correspondence.

[0020] A compression spring movably sleeved on the outside of the hollow column 2 is provided in the accommodating chamber 1, one end of the compression spring is fixedly connected to the inner end of the accommodating chamber 1, the other end of the compression spring is fixedly connected to the inner end of the movable component, and the outer end of the movable component is in contact with the nozzle.

[0021] Furthermore, the movable component includes a hollow column three, a sliding tube is fixedly inserted into the interior of the hollow column three, the free end of the sliding tube slides through the free end of the hollow column two and then extends into the interior of the accommodating chamber two, and a discharge port is opened on the side wall of the end of the sliding tube extending into the interior of the accommodating chamber two;

[0022] The three side walls of the hollow column are provided with ventilation holes, which are communicated with the accommodating cavity.

[0023] Furthermore, the three outer ends of the hollow column are provided with the same number of circular holes as the air supply pipes, each of the circular holes is evenly arranged around the sliding pipe, and each circular hole is detachably connected to each air supply pipe in a one-to-one correspondence.

[0024] Furthermore, the driving mechanism includes a motor, gear 1 and gear 2, the motor is fixedly mounted on the U-shaped frame, the gear 1 is rotatably mounted on the side wall of the U-shaped groove and is transmission-connected to the motor, the gear 2 is fixedly sleeved on the connecting ring 1, and the gear 1 and gear 2 are meshed with each other.

[0025] Compared with the prior art, the present invention has the following characteristics and beneficial effects:

[0026] 1. The present invention arranges the supply of nozzle gas and paint inside the equipment by providing a connecting mechanism. In this way, when the equipment controls the nozzle to deflect the angle, there will be no extended pipe to hinder the deflection and rotation of the nozzle, thereby increasing the deflection angle of the nozzle, allowing the nozzle to spray some blind spots, and improving the spraying effect of the equipment.

[0027] 2. The present invention provides a connecting mechanism so that when the connecting mechanism rotates, normal gas and nozzle supply can still be carried out. Compared with the pipeline supply method, it avoids the pressure in the pipe being affected by the bending or shaking of the pipe, which in turn affects the spraying effect of the equipment.

[0028] 3. The present invention provides a supply mechanism so that the shape of the nozzle can be replaced according to the actual situation during use, and no bolts are required during the replacement process, which speeds up the speed of replacing the nozzle of the device and ensures that the device will not leak paint or gas under the squeezing of the movable components.

[0029] 4. The present invention provides a movable component. When the device replaces the nozzle, as the spray mechanism is removed, the movable component will automatically cut off the supply of gas and paint in the device to avoid leakage when the device replaces the nozzle. As the device reinstalls the nozzle, the movable component will automatically open the supply of gas and paint. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the coordination structure of the connecting mechanism and the spraying mechanism of the present invention;

[0032] Figure 3 It is a schematic diagram of the assembly structure of the supply mechanism of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the connecting mechanism of the present invention;

[0034] Figure 5 It is a schematic cross-sectional view of the connecting mechanism of the present invention;

[0035] Figure 6 yes Figure 5 A schematic diagram of the local enlarged structure at A;

[0036] Figure 7 Schematic diagram of the internal structure of the connecting ring 1 of the present invention;

[0037] Figure 8 It is a structural schematic diagram of the spray assembly of the present invention;

[0038] Figure 9 It is a schematic diagram of the coordinated structure of the supply mechanism of the present invention;

[0039] Figure 10 Schematic diagram of the internal structure of the hollow column 1 of the present invention;

[0040] Figure 11 It is a structural diagram of the active component of the present invention.

[0041] The accompanying drawings are marked as follows: 1. U-shaped frame; 101. Connecting head; 102. Connecting pipe 1; 103. Connecting column; 104. Motor; 105. Gear 1; 106. U-shaped groove; 2. Feeding mechanism; 201. Hollow column 1; 202. Slide; 203. Hollow column 2; 204. Compression spring; 205. Connecting pipe 2; 206. Connecting pipe 3; 207. Fixed plate; 21. Movable component; 211. Hollow column 3; 212. Ventilation port; 213. Annular plate; 214. Circular hole; 215. Sliding pipe; 216. Discharge port; 217. Anti-slip block ;218, accommodating chamber one;219, accommodating chamber two;3, connecting mechanism;301, outer shell;302, support plate;303, center tube;304, connecting chamber;305, feeding pipe one;306, ventilation pipe one;307, connecting ring one;308, connecting ring two;309, connecting pipe;3010, ventilation pipe two;3011, raised plate;3012, cavity;3013, feeding pipe two;3014, gear two;4, spraying mechanism;401, nozzle;402, slider;403, air supply pipe;404, supply pipe;405, spraying assembly. DETAILED DESCRIPTION

[0042] The present invention will be described in more detail below with reference to the embodiments.

[0043] Example 1

[0044] See also Figures 1 to 7 The drone spraying device of this embodiment includes a spraying mechanism 4 and an inverted U-shaped frame 1. The spraying mechanism 4 is rotatably installed in the U-shaped groove 106 at the bottom of the U-shaped frame 1. The U-shaped frame 1 wraps up both sides of the spraying mechanism 4, which can ensure the stable use of the spraying mechanism 4, and the setting of the U-shaped groove 106 will not affect the normal swing of the spraying mechanism 4.

[0045] See also Figure 1 、 Figure 2 and Figure 3 A connecting mechanism 3 is provided at both ends of the U-shaped frame 1, and the connecting mechanism 3 plays the role of transmitting high-pressure gas and paint.

[0046] A connector 101 is installed at the top of the U-shaped frame 1. The connector 101 is connected to an external material supply source and an air supply source for introducing paint and high-pressure gas to achieve the paint spraying function.

[0047] The connecting head 101 is connected to the connecting mechanism 3 through a connecting pipe 102, and the connecting mechanism 3 is rotatably connected to the spraying mechanism 4. In this embodiment, two connecting heads 101 are provided, one of which is connected to the high-pressure gas source, and the other is connected to the paint supply. Both sides of each connecting head 101 are connected to a connecting pipe 102, and the connecting pipes 102 on both sides of each connecting head 101 are respectively connected to the two connecting mechanisms 3, and the high-pressure gas and paint are transferred to the spraying mechanism 4 through the two connecting mechanisms 3, thereby completing the operation of the connecting head 101 conveying paint and high-pressure gas to the spraying mechanism 4 respectively through the connecting pipe 102 and the connecting mechanism 3.

[0048] In order to expand the spraying range of the spraying mechanism 4, a driving mechanism for driving the spraying mechanism 4 to swing is also installed on the U-shaped frame 1. The driving mechanism is used to drive the spraying mechanism 4 to swing up and down, and the lateral position adjustment is completed by a drone device, thereby maximizing the spraying range of the spraying mechanism 4.

[0049] From the above description, it can be seen that the beneficial effects of the present invention are: through the setting of the U-shaped frame 1, the spraying mechanism 4 can be protected in the U-shaped groove 106 of the U-shaped frame 1, and through the setting of the connecting mechanism 3, the swinging direction of the spraying mechanism 4 can be limited to ensure the movement stability of the spraying mechanism 4, and at the same time, the traditional feeding method of the spraying mechanism 4 directly connected to the material pipeline can be changed to a feeding method of supplying high-pressure gas and paint respectively through the connecting mechanism 3, so that when the driving mechanism drives the spraying mechanism 4 to swing, the problem of unstable feeding caused by the pulling of the pipeline and the deformation of the pipeline can be avoided, and the deflection angle of the spraying mechanism 4 can be increased, so that the spraying mechanism 4 can spray some dead corners, effectively improving the spraying effect of the equipment.

[0050] In this embodiment, please refer to Figure 1 A connecting column 103 is installed on the side of the top of the U-shaped frame 1 away from the spraying direction of the spraying mechanism 4. The connecting column 103 is used to connect with the drone device. The drone drives the U-shaped frame 1 to move, thereby changing the position of the spraying mechanism 4. In conjunction with the up and down deflection of the spraying mechanism 4, the spraying range can be further improved.

[0051] Specifically, see Figure 4 、 Figure 5 、 Figure 6 and Figure 7 The connecting mechanism 3 includes a shell 301, and one end of the shell 301 is provided with a feed pipe 305 for inputting paint and a vent pipe 306 for inputting high-pressure gas. The feed pipe 305 and the vent pipe 306 are independent of each other, and the channels for conveying paint and conveying high-pressure gas inside the shell 301 are also independent of each other.

[0052] Among them, the material feeding pipe 305 and the ventilation pipe 306 are respectively connected to the two connecting pipes 102, and the two connecting pipes 102 are used to transport the paint and the high-pressure gas respectively.

[0053] In order to ensure that high-pressure gas and paint are transported independently in the shell 301, a connecting ring 307 is rotatably connected to the other end of the shell 301. The outer end of the connecting ring 307 is provided with a vent pipe 2 3010 and a material feeding pipe 2 3013. The vent pipe 2 3010 is connected to the vent pipe 1 306, and the material feeding pipe 2 3013 is connected to the material feeding pipe 1 305.

[0054] See also Figure 5 A central tube 303 is fixedly installed inside the shell 301 through a support plate 302. The support plate 302 supports the central tube 303. One end of the support plate 302 is fixed to the inner wall of the shell 301, and the other end is fixed to the outer wall of the central tube 303. In this embodiment, support plates 302 are fixed on both sides of the central tube 303. The support plates 302 are thin plates and will not hinder the high-pressure air in the shell 301.

[0055] See also Figure 5 、 Figure 6 and Figure 7 The inner end of the connecting ring 307 is fixedly connected with a raised plate 3011, and a cavity 3012 is formed between the raised plate 3011 and the inner end surface of the connecting ring 307. The cavity 3012 is independent of the internal space of the shell 301, and the ventilation pipe 2 3010 is connected to the internal space of the shell 301.

[0056] A connecting pipe 309 is provided on the side of the raised plate 3011 away from the second feeding pipe 3013 . The free end of the connecting pipe 309 is rotatably connected to the central pipe 303 . The cavity 3012 connects the connecting pipe 309 and the second feeding pipe 3013 .

[0057] In this embodiment, the outer wall of the connecting pipe 309 is fixedly connected to the second connecting ring 308 , and the outer wall of the second connecting ring 308 is rotatably connected to the central pipe 303 through a bearing.

[0058] In this embodiment, one end of the central tube 303 away from the connecting tube 309 is connected to the connecting cavity 304 provided in the shell 301 , and the connecting cavity 304 is connected to the feeding tube 1 305 .

[0059] From the above description, it can be seen that the high-pressure gas is transported sequentially through the connector 101, the connecting pipe 102, the vent pipe 1 306, the inner cavity of the shell 301 and the vent pipe 2 3010, and finally reaches the spraying mechanism 4.

[0060] The paint is transported sequentially through the connector 101, the connecting pipe 102, the feeding pipe 1 305, the connecting cavity 304, the central pipe 303, the connecting pipe 309, the cavity 3012 and the feeding pipe 2 3013, and finally reaches the spraying mechanism 4.

[0061] During the above-mentioned transportation process, the high-pressure gas and the paint are always in an independent state before entering the spraying mechanism 4, which avoids the paint solidification or deposition caused by premature contact during transportation, effectively reducing the risk of pipeline blockage. At the same time, the high-pressure gas can remain pure and pollution-free, ensuring stable air pressure and guaranteeing the subsequent spraying effect.

[0062] The spraying mechanism 4 is fixedly connected to the connecting ring 1 307 through the fixing plate 207. By fixing the spraying mechanism 4 and the connecting ring 1 307, and the connecting ring 1 307 being rotatably connected to the housing 301, the driving mechanism can drive the connecting ring 1 307 to rotate to drive the spraying mechanism 4 to swing.

[0063] Specifically, the driving mechanism includes a motor 104, gear 1 105 and gear 2 3014. The motor 104 is fixedly mounted on the U-shaped frame 1, the gear 1 105 is rotatably mounted on the side wall of the U-shaped groove 106 and is transmission-connected to the motor 104, and the gear 2 3014 is fixedly sleeved on the connecting ring 1 307, and the gear 1 105 and the gear 2 3014 are meshed with each other.

[0064] In this embodiment, the motor 104 is controlled by remote control. When the motor 104 starts, it drives the gear 105 to rotate. The gear 105 drives the meshing gear 2 3014. The gear 2 3014 can drive the connecting ring 1 307. The connecting ring 1 307 can then drive the fixed plate 207. The fixed plate 207 can drive the spraying mechanism 4 to swing and change the spraying direction.

[0065] In this embodiment, two driving mechanisms are provided, which drive the spraying mechanism 4 to swing simultaneously on the left and right sides of the spraying mechanism 4.

[0066] From the above description, it can be seen that through the setting of the driving mechanism, the motor 104 is used to output power, and then through gear 1 105, gear 2 3014, connecting ring 1 307, and fixed plate 207, finally driving the spraying mechanism 4 to swing. The transmission path is short, the energy loss is low, the response speed is fast, and it is suitable for promotion and use.

[0067] Furthermore, the central tube 303, the connecting tube 309 and the cylindrical shell 301 are concentrically arranged. When the motor 104 drives the gear 2 3014 to rotate, the connecting ring 1 307 will also rotate synchronously. By concentrically arranging the central tube 303, the connecting tube 309 and the cylindrical shell 301, the connection stability of the central tube 303 and the connecting tube 309 can be ensured and eccentricity can be prevented.

[0068] The coating in this embodiment is a super-amphiphobic insulating material.

[0069] Example 2

[0070] The drone spraying device of this embodiment is based on the above embodiment 1. Figure 8 、 Figure 9 、 Figure 10 and Figure 11 The spraying mechanism 4 includes a supply mechanism 2 and a spraying assembly 405 detachably mounted on the end of the supply mechanism 2 .

[0071] Specifically, the supply mechanism 2 includes a hollow column 1 201 , and a hollow column 203 is fixedly installed at one end of the hollow column 1 201 away from the spray assembly 405 . In this embodiment, the hollow column 1 201 and the hollow column 2 203 are concentrically arranged.

[0072] An accommodating cavity 1 218 is provided between the inner wall of the hollow column 203 and the hollow column 1 201 , and an accommodating cavity 219 is provided inside the hollow column 1 201 .

[0073] A connecting pipe 205 and a connecting pipe 3 206 are provided on the side of the hollow column 1 201. The accommodating chamber 1 218 receives the high-pressure gas delivered by the connecting mechanism 3 through the connecting pipe 2 205, and the accommodating chamber 2 219 receives the paint delivered by the connecting mechanism 3 through the connecting pipe 3 206. The connecting pipe 2 205 passes through the fixed plate 207 and is connected to the vent pipe 2 3010, and the connecting pipe 3 206 passes through the fixed plate 207 and is connected to the feed pipe 2 3013.

[0074] The hollow column 201 is internally movably connected to a movable assembly 21. The high-pressure gas in the accommodating chamber 1 218 and the paint in the accommodating chamber 2 219 are transported to the spraying assembly 405 through the movable assembly 21 and then sprayed out after merging.

[0075] From the above description, it can be seen that after the paint is output from the second feeding pipe 3013, it is input into the second accommodating chamber 219 through the connecting pipe 3 206, and then transported to the spraying assembly 405 through the movable assembly 21.

[0076] At the same time, the high-pressure gas is output from the second ventilation pipe 3010 and input into the first accommodating chamber 218 through the second connecting pipe 205 , and then transported to the spraying assembly 405 through the movable assembly 21 .

[0077] The high-pressure gas and the coating are combined in the spray assembly 405 and then sprayed out.

[0078] Specifically, see Figure 8The spray assembly 405 includes a nozzle 401, a nozzle is provided at the outer end of the nozzle 401, a supply pipe 404 for receiving paint is provided at the inner end of the nozzle 401, and six air supply pipes 403 for receiving high-pressure gas are evenly arranged around the supply pipe 404. By evenly arranging the six air supply pipes 403 around the supply pipe 404, it can be ensured that the paint is evenly sprayed inside the nozzle 401, thereby ensuring the spraying effect.

[0079] Four sliders 402 are evenly fixed along the circumferential direction on the side of the nozzle 401. The inner wall of the hollow column 201 is provided with the same number of slide grooves 202 as the sliders 402. The slide grooves 202 are J-shaped, and each slider 402 is movably mounted in each slide groove 202 in a one-to-one correspondence.

[0080] As can be seen from the above description, when installing the nozzle 401, first push the slider 402 into the slide groove 202 until it can no longer be pushed forward, then rotate the nozzle 401, and the slider 402 will rotate in the horizontal arc groove of the slide groove 202, thereby completing the preliminary installation of the nozzle 401.

[0081] Furthermore, a compression spring 204 is provided in the accommodating chamber 1 218 and is movably mounted outside the hollow column 203. One end of the compression spring 204 is fixedly connected to the inner end of the accommodating chamber 1 218, and the other end of the compression spring 204 is fixedly connected to the inner end of the movable component 21. The outer end of the movable component 21 is in contact with the nozzle 401.

[0082] From the above description, it can be seen that during the initial installation operation of the nozzle 401, the nozzle 401 and the movable component 21 gradually come into contact with each other, that is, the movable component 21 slides inward under the squeezing action of the nozzle 401, thereby compressing the compression spring 204. When the initial installation operation of the nozzle 401 is completed, the accumulated elastic force of the compression spring 204 will act on the nozzle 401 through the movable component 21, so that the slider 402 can be stuck into the end of the slide groove 202, thereby completing the final installation of the nozzle 401.

[0083] To disassemble the nozzle 401 , push the nozzle 401 in the reverse direction, and then rotate the nozzle 401 so that the slider 402 exits the transverse arc groove of the slide 202 , and finally take the nozzle 401 out.

[0084] Through the design of the J-shaped slide groove 202 and the compression effect of the compression spring 204, the nozzle 401 can be stably clamped by the compression spring 204, and the nozzle 401 can also be easily replaced.

[0085] Further, see Figure 9 、 Figure 10 and Figure 11 The movable component 21 includes a hollow column three 211, and the outer end of the hollow column three 211 is slidably and sealedly sleeved with the inner wall of the hollow column one 201.

[0086] Among them, the interior of the hollow column 3 211 is fixedly penetrated with a sliding tube 215, and the free end of the sliding tube 215 slides and seals through the free end of the hollow column 203 and then extends into the interior of the accommodating chamber 219. A discharge port 216 is provided on the side wall of one end of the sliding tube 215 extending into the interior of the accommodating chamber 219. In particular, the discharge port 216 is used to guide the paint in the accommodating chamber 219, and due to the setting of the compression spring 204, when the nozzle 401 is disassembled, the hollow column 3 211 will be in the compression spring 204 when the nozzle 401 is disassembled. Under the action of the spring 204, it moves outward, so that the discharge port 216 is blocked by the side wall of the socket hole between the hollow column 203 and the sliding tube 215, thereby ensuring that the paint can be prevented from spraying out when the nozzle 401 is disassembled. On the contrary, when the nozzle 401 is installed, the hollow column 3 211 is pushed inward by the nozzle 401, and the discharge port 216 is released to discharge the paint again. The paint enters the sliding tube 215, the supply tube 404 and the nozzle 401 in turn through the discharge port 216.

[0087] A vent 212 is provided on the side wall of the hollow column three 211, and the vent 212 is connected to the accommodating chamber one 218. In particular, the vent 212 is used to discharge the high-pressure gas in the accommodating chamber one 218, and due to the setting of the compression spring 204, when the nozzle 401 is removed, the hollow column three 211 will move outward under the action of the compression spring 204, so that the vent 212 is blocked by the side wall of the hollow column one 201, thereby ensuring that the paint can be prevented from being sprayed out under the action of the high-pressure gas when the nozzle 401 is removed. On the contrary, when the nozzle 401 is installed, the hollow column three 211 is pushed inward by the nozzle 401, and the vent 212 is released to discharge the high-pressure gas again. The high-pressure gas enters the vent 212, the circular hole 214, the air supply pipe 403 and the nozzle 401 in turn.

[0088] As can be seen from the above description, through the setting of the movable component 21, by utilizing the state change of the compression spring 204 when removing or installing the nozzle 401, the vent 212 and the discharge port 216 can be blocked when the nozzle 401 is removed to prevent the paint from spraying out. When the nozzle 401 is installed, the vent 212 and the discharge port 216 can be loosened. The double protection prevents residual paint from splashing, effectively improving safety. When the staff replaces the nozzle 401 according to the actual situation during use, there is no need to disassemble and assemble the bolts, which improves the replacement efficiency of the nozzle 401 and can ensure that the equipment will not leak paint or gas.

[0089] In this embodiment, please refer to Figure 9 and Figure 11 An anti-slip block 217 is provided at the outer edge of one end of the sliding tube 215 located in the second accommodating chamber 219 to prevent the sliding tube 215 from escaping from the second accommodating chamber 219 .

[0090] In this embodiment, an annular plate 213 is provided at the outer edge of one end of the hollow column 3 211 disposed in the accommodating cavity 1 218 to extend outward to prevent the hollow column 3 211 from separating from the hollow column 1 201 .

[0091] Furthermore, the outer end of the hollow column 211 is provided with the same number of circular holes 214 as the air supply pipe 403 , and each circular hole 214 is evenly arranged around the sliding pipe 215 , and each circular hole 214 is detachably connected to each air supply pipe 403 in a one-to-one correspondence.

[0092] The sliding tube 215 is connected to the feeding tube 404 .

[0093] The coating in this embodiment is a super-amphiphobic insulating material.

[0094] The working principle of the present invention is as follows: when the angle of the spraying mechanism 4 needs to be adjusted, the motor 104 is controlled by remote control, the motor 104 starts to drive the gear 105 to rotate, the gear 105 drives the meshing gear 2 3014, the gear 2 3014 can drive the connecting ring 1 307, and then the connecting ring 1 307 can drive the fixed plate 207, and the fixed plate 207 can drive the spraying mechanism 4 to swing and change the spraying direction.

[0095] During the deflection of the spraying mechanism 4, since the connecting tube 309 is rotatably connected to the central tube 303, the gas will be sent into the accommodating chamber 1 218 through the vent tube 2 3010, and the paint will be sent into the accommodating chamber 2 219 in the hollow column 2 203 through the connecting tube 309, the cavity 3012, and the feeding tube 2 3013. No matter how the connecting mechanism 3 rotates, the feeding will not be affected.

[0096] By setting the movable component 21 and utilizing the state change of the compression spring 204 when removing or installing the nozzle 401, the vent 212 and the discharge port 216 can be blocked when the nozzle 401 is removed to prevent the paint from spraying out. When the nozzle 401 is installed, the vent 212 and the discharge port 216 can be loosened. This double protection prevents residual paint from splashing, effectively improving safety. When the staff replaces the nozzle 401 according to the actual situation during use, there is no need to disassemble and assemble the bolts, which improves the replacement efficiency of the nozzle 401 and can ensure that the equipment will not leak paint or gas.

[0097] In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0098] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0099] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

Claims

1. A UAV spraying device, comprising a spraying mechanism (4), characterized in that: It also includes an inverted U-shaped frame (1), the spraying mechanism (4) is rotatably mounted in a U-shaped groove (106) at the bottom of the U-shaped frame (1), and the U-shaped frame (1) is mounted on a drone device; Both ends of the U-shaped frame (1) are provided with connecting mechanisms (3), and a connecting head (101) is installed at the top of the U-shaped frame (1), the connecting head (101) is connected to the connecting mechanism (3) through a connecting pipe (102), the connecting mechanism (3) is rotatably connected to the spraying mechanism (4), and the connecting head (101) respectively delivers paint and high-pressure gas to the spraying mechanism (4) through the connecting pipe (102) and the connecting mechanism (3); The U-shaped frame (1) is also provided with a driving mechanism for driving the spraying mechanism (4) to swing.

2. The drone spraying device according to claim 1, characterized in that: The connecting mechanism (3) includes a housing (301), one end of which is provided with a feed pipe (305) for inputting paint and a vent pipe (306) for inputting high-pressure gas, wherein the feed pipe (305) and the vent pipe (306) are respectively connected to two connecting pipes (102); The other end of the housing (301) is rotatably sleeved with a connecting ring 1 (307), and the outer end of the connecting ring 1 (307) is provided with a vent pipe 2 (3010) and a material feeding pipe 2 (3013), wherein the vent pipe 2 (3010) is connected to the vent pipe 1 (306), and the material feeding pipe 2 (3013) is connected to the material feeding pipe 1 (305); The spraying mechanism (4) is fixedly connected to the connecting ring (307) via a fixing plate (207).

3. The drone spraying device according to claim 2, characterized in that: A central tube (303) is fixedly installed inside the shell (301) via a support plate (302); a raised plate (3011) is fixedly connected to the inner end of the first connecting ring (307); a cavity (3012) is formed between the raised plate (3011) and the inner end surface of the first connecting ring (307); the cavity (3012) is independent of the inner space of the shell (301), and the second vent pipe (3010) is in communication with the inner space of the shell (301); A connecting pipe (309) is provided on the side of the raised plate (3011) away from the second feeding pipe (3013), the free end of the connecting pipe (309) is rotatably connected to the central pipe (303), and the cavity (3012) connects the connecting pipe (309) and the second feeding pipe (3013).

4. The drone spraying device according to claim 3, characterized in that: The central tube (303), the connecting tube (309) and the cylindrical shell (301) are concentrically arranged.

5. The drone spraying device according to claim 1, characterized in that: The spraying mechanism (4) comprises a supply mechanism (2) and a spraying assembly (405) detachably sleeved on the end of the supply mechanism (2); The supply mechanism (2) includes a hollow column (201), a hollow column (203) is fixedly installed at one end of the hollow column (201) away from the spray assembly (405), a receiving chamber (218) is provided between the hollow column (203) and the inner wall of the hollow column (201), a receiving chamber (219) is provided inside the hollow column (201), a connecting pipe (205) and a connecting pipe (206) are provided on the side of the hollow column (201), the receiving chamber (218) receives the high-pressure gas delivered by the connecting mechanism (3) through the connecting pipe (205), and the receiving chamber (219) receives the paint delivered by the connecting mechanism (3) through the connecting pipe (206); The hollow column 1 (201) is movably sleeved with a movable component (21), and the high-pressure gas in the accommodating chamber 1 (218) and the paint in the accommodating chamber 2 (219) are transported to the spraying component (405) through the movable component (21) and then sprayed out after merging.

6. The drone spraying device according to claim 5, characterized in that: The spray assembly (405) includes a spray head (401), a nozzle is provided at the outer end of the spray head (401), a supply pipe (404) for receiving paint is provided at the inner end of the spray head (401), and a plurality of gas supply pipes (403) for receiving high-pressure gas are evenly arranged around the supply pipe (404).

7. The drone spraying device according to claim 6, characterized in that: A plurality of sliders (402) are evenly fixed to the side of the nozzle (401) along the circumferential direction, and the inner wall of the hollow column (201) is provided with the same number of slide grooves (202) as the number of sliders (402). The slide grooves (202) are J-shaped, and each of the sliders (402) is movably mounted in each slide groove (202) in a one-to-one correspondence. A compression spring (204) is provided in the accommodating chamber (218) and is movably sleeved outside the hollow column (203). One end of the compression spring (204) is fixedly connected to the inner end of the accommodating chamber (218), and the other end of the compression spring (204) is fixedly connected to the inner end of the movable component (21). The outer end of the movable component (21) is in contact with the nozzle (401).

8. The drone spraying device according to claim 7, characterized in that: The movable component (21) includes a hollow column three (211), a sliding tube (215) is fixedly inserted into the interior of the hollow column three (211), the free end of the sliding tube (215) slides through the free end of the hollow column two (203) and then extends into the interior of the accommodating chamber two (219), and a discharge port (216) is provided on the side wall of one end of the sliding tube (215) extending into the interior of the accommodating chamber two (219); A vent (212) is provided on the side wall of the hollow column three (211), and the vent (212) is communicated with the accommodating cavity one (218).

9. The drone spraying device according to claim 8, characterized in that: The outer end of the hollow column (211) is provided with the same number of circular holes (214) as the air supply pipe (403), and each circular hole (214) is evenly arranged around the sliding pipe (215), and each circular hole (214) is detachably connected to each air supply pipe (403) in a one-to-one correspondence.

10. The drone spraying device according to claim 3, characterized in that: The driving mechanism comprises a motor (104), a gear 1 (105) and a gear 2 (3014); the motor (104) is fixedly mounted on the U-shaped frame (1); the gear 1 (105) is rotatably mounted on the side wall of the U-shaped groove (106) and is transmission-connected to the motor (104); the gear 2 (3014) is fixedly sleeved on the connecting ring 1 (307); and the gear 1 (105) and the gear 2 (3014) are meshed with each other.

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