A telescopic adjustable portable unmanned aerial vehicle spraying device

CN224747338UActive Publication Date: 2026-09-15祝太航
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Patent Information

Application Number
CN202522254026.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-24
Publication Date
2026-09-15
Estimated Expiration
2035-10-24

AI Technical Summary

Technical Problem

[0003]本实用新型提供一种伸缩可调的便捷式无人机喷洒装置,可以有效解决上述背景技术中提出的无人机喷洒装置在使用过程中由于缺少相应的辅助拓展结构,使得无人机喷洒装置的撒药范围有限,进而导致单位面积的作物需要无人机喷洒装置往复多次才能完成喷洒,降低了无人机喷洒装置的使用便捷性和喷洒效率的问题

Benefits of technology

1.设置了伸缩可调式均匀喷洒机构,通过安装座将中心安装横杆和活动端杆安装到支撑底架端部,通过储药液箱对药液进行存放,通过安装弧形座和调节套管的配合将连接摆杆和撒药喷头安装到活动端杆底部,通过调节套管侧面的翻转卡扣对调节套管进行固定,通过调节套管侧面的翻转卡扣可沿活动端杆外侧调节撒药喷头的位置,以实现对喷洒范围的调节,通过输液底泵将储药液箱内部的药液导入输药主管内部,通过导液细管将输药主管内部药液导入撒药喷头进行喷洒,通过捆束扎带对输药主管进行捆束,进而实现了对无人机喷洒装置喷洒范围的快速调节,提高了无人机喷洒装置整体的喷洒效率,优化了无人机喷洒装置整体的使用便捷性。

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Abstract

The utility model discloses a telescopic adjustable portable unmanned plane spraying device, including unmanned plane main part, the unmanned plane main part bottom symmetry fixedly connected with the support chassis, the unmanned plane main part top middle part fixedly connected with the storage liquid tank, the storage liquid tank bottom fixedly connected with infusion bottom pump one end, the support chassis end is fixedly connected with the center installation cross bar through the connecting seat, the both ends of center installation cross bar all are provided with movable end rod, the movable end rod outside equidistance sleeve joint has installed arc seat, the utility model discloses infusion bottom pump will the liquid medicine of storage liquid tank inside lead into the inside of infusion main pipe, through the liquid guide capillary tube, the liquid medicine in the inside of infusion main pipe is introduced into the pesticide spraying head and sprays, through the bundle of binding belt, the infusion main pipe is bound, and then the quick adjustment of unmanned plane spraying device spraying range is realized, improves the spraying efficiency of unmanned plane spraying device whole, optimized the use convenience of unmanned plane spraying device whole.
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Description

Technical Field

[0001] This utility model relates to the field of drone spraying technology, specifically a telescopic and adjustable portable drone spraying device. Background Technology

[0002] The drone spraying system mainly consists of a spraying system, a control system, and a positioning system. The spraying system delivers pesticides precisely and quantitatively through pipes and nozzles. The positioning system enables positioning, navigation, and data acquisition. Combined with the control system, it guides the drone to fly along a set route and controls the nozzles to spray pesticides, thus achieving precise spraying. In addition, the downward airflow generated by the drone's rotors increases the penetration of the mist into the crops, ensuring that pesticides adhere to both sides of the leaves. However, the lack of corresponding auxiliary expansion structures in the current use of drone spraying devices limits the spraying range, which means that the drone spraying device needs to repeat the process multiple times to complete the spraying of crops per unit area, thus reducing the ease of use and spraying efficiency of drone spraying devices. Utility Model Content

[0003] This utility model provides a telescopic and adjustable portable drone spraying device, which can effectively solve the problem mentioned in the background art that the drone spraying device has a limited spraying range due to the lack of corresponding auxiliary extension structure, which leads to the drone spraying device needing to repeat multiple times to complete the spraying of crops per unit area, thus reducing the convenience and spraying efficiency of the drone spraying device.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a telescopic and adjustable portable drone spraying device, comprising a drone body, wherein a support base is symmetrically and fixedly connected to the bottom of the drone body; The top of the drone body is equipped with a telescopic and adjustable uniform spraying mechanism. The telescopic adjustable uniform spraying mechanism includes a medicine storage tank, a bottom pump, a central mounting crossbar, a movable end bar, a mounting arc seat, an adjusting sleeve, a connecting swing arm, a spray nozzle, a main medicine delivery pipe, a liquid guiding cap, and a binding strap. A drug storage tank is fixedly connected to the top center of the main body of the drone, and an infusion pump is fixedly connected to one end of the bottom surface of the drug storage tank. The support base is fixedly connected to a central mounting crossbar at its end via a connecting seat, and both ends of the central mounting crossbar are provided with movable end rods; An arc-shaped mounting seat is equidistantly sleeved on the outer side of the movable end rod. An adjusting sleeve is fixedly connected to the end of the arc-shaped mounting seat at the position corresponding to the outer side of the movable end rod. A connecting swing rod is fixedly connected to the bottom end of the arc-shaped mounting seat. A spray nozzle is fixedly connected to the bottom of the connecting swing rod. The infusion pump is fixedly connected to the middle of its bottom end with a main infusion tube, and a fluid guiding tube is fixedly connected to one side of the bottom of the main infusion tube. The movable end rod and the outer side of the drug delivery tube are both covered by a binding strap.

[0005] Preferably, the mounting arc-shaped seat and the inner wall of the adjusting sleeve are tightly fitted to the outer side of the movable end rod, the adjusting sleeve is provided with a flip-up buckle on the side, and the end of the liquid guiding tube is connected to the corresponding spray nozzle.

[0006] Preferably, a flexible buffer connection mechanism is provided at the position between the central mounting crossbar and the end of the movable end bar; The flexible buffer connection mechanism includes a front connecting block, a rear connecting block, a guide rotating shaft, a connecting mounting buckle, and an arc-shaped limiting spring. The central mounting crossbar is fixedly sleeved with a front connecting block, and one end of the movable end bar is fixedly sleeved with a rear connecting block. A guide rotating shaft is rotatably inserted between the front connecting block and the rear connecting block. Both the front and rear connecting blocks are threaded with connecting buckles at the middle of their respective sides, and an arc-shaped limiting spring is fixedly connected between the ends of the two connecting buckles on the same side.

[0007] Preferably, the inner side of the connecting front block and the outer side of the connecting rear block are tightly slidably fitted together, and the arc-shaped limiting springs on both sides of the connecting rear block are in a compressed state after installation.

[0008] Preferably, the bottom of the support frame is provided with a multi-level flexible buffer mechanism; The bottom multi-level flexible buffer mechanism includes an arc-shaped connecting strip, a connecting rectangular top plate, a guide telescopic rod, a supporting arc-shaped plate, a buffer guide spring, an elastic buffer belt, and a buffer support airbag; An arc-shaped connecting strip is sleeved on the bottom outer side of the support base, and a connecting rectangular top plate is fixedly connected to the bottom of the arc-shaped connecting strip; Guide telescopic rods are movably inserted at the four corners of the top of the connecting rectangular top plate. A supporting arc plate is fixedly connected to the bottom of the guide telescopic rod. A buffer guide spring is fixedly sleeved at the top of the supporting arc plate at the position corresponding to the outer side of the guide telescopic rod. An elastic buffer strip is fixedly connected between the two supporting arc-shaped plates, and a buffer support airbag is fixedly connected to the middle of the top surface of the elastic buffer strip.

[0009] Preferably, the top and bottom ends of the buffer guide spring are tightly fitted to the connecting rectangular top plate and the supporting arc plate, respectively, and the top surface of the buffer support airbag is connected to the bottom surface of the connecting rectangular top plate by adhesive.

[0010] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use. 1. A telescopic and adjustable uniform spraying mechanism is installed. The central mounting crossbar and movable end rod are installed to the end of the support base via the mounting base. The liquid medicine is stored in the storage tank. The connecting swing rod and the spraying nozzle are installed to the bottom of the movable end rod through the cooperation of the mounting arc seat and the adjusting sleeve. The adjusting sleeve is fixed by the flip-out buckle on the side of the adjusting sleeve. The position of the spraying nozzle can be adjusted along the outside of the movable end rod by adjusting the flip-out buckle on the side of the adjusting sleeve to adjust the spraying range. The liquid medicine in the storage tank is introduced into the main delivery pipe through the infusion pump. The liquid medicine in the main delivery pipe is introduced into the spraying nozzle for spraying through the guide tube. The main delivery pipe is tied with a binding strap. This enables rapid adjustment of the spraying range of the drone spraying device, improves the overall spraying efficiency of the drone spraying device, and optimizes the overall ease of use of the drone spraying device.

[0011] 2. A flexible buffer connection mechanism is set up. Additional connecting components are set at the ends of the centrally mounted crossbar and the movable end rod of the connecting front block and the connecting rear block. The connecting front block and the connecting rear block are rotatably connected by a guide rotating shaft. The arc-shaped limiting spring is installed on the side of the connecting front block and the connecting rear block by the connecting mounting buckle. The arc-shaped limiting spring provides flexible limitation between the centrally mounted crossbar and the movable end rod. The elastic deformation of the arc-shaped limiting spring drives the movable end rod to swing, thereby effectively preventing the device from overturning and being damaged due to external collisions during flight, and improving the safety of the UAV spraying device.

[0012] 3. A multi-stage flexible buffer mechanism is installed at the bottom. The components connecting the bottom of the rectangular top plate are installed to the bottom of the support frame through arc-shaped connecting strips. The first stage of flexible buffering is achieved through the elastic compression of the buffer support airbag. When the bottom surface of the support arc plate contacts the bottom surface, the elastic compression of the buffer guide spring provides a second stage of flexible buffering of the kinetic energy at the bottom of the support arc plate. The sliding direction of the support arc plate is guided by the guide telescopic rod, thereby effectively improving the overall buffering performance of the drone spraying device during landing and improving the safety of the drone spraying device during the lifting and lowering process. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2This is a schematic diagram of the structure of the telescopic adjustable uniform spraying mechanism of this utility model; Figure 3 This is a schematic diagram of the flexible buffer connection mechanism of this utility model; Figure 4 This is a schematic diagram of the multi-level flexible buffer mechanism at the bottom of this utility model; Labels in the diagram: 1. Main body of the drone; 2. Support frame; 3. Telescopic adjustable uniform spraying mechanism; 301. Drug storage tank; 302. Infusion pump; 303. Central mounting crossbar; 304. Movable end rod; 305. Mounting arc seat; 306. Adjusting sleeve; 307. Connecting swing arm; 308. Spray nozzle; 309. Main drug delivery pipe; 310. Liquid guiding tube; 311. Bundling strap; 4. Flexible buffer connection mechanism; 401. Connecting front block; 402. Connecting rear block; 403. Guide rotation shaft; 404. Connecting mounting buckle; 405. Arc-shaped limit spring; 5. Bottom multi-stage flexible buffer mechanism; 501. Arc-shaped connecting strip; 502. Connecting rectangular top plate; 503. Guide telescopic rod; 504. Supporting arc-shaped plate; 505. Buffer guide spring; 506. Elastic buffer belt; 507. Buffer support airbag. Detailed Implementation

[0015] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0016] Example: Figure 1-4 As shown, this utility model provides a technical solution: a telescopic and adjustable portable drone spraying device, including a drone body 1, with a support frame 2 symmetrically fixedly connected to the bottom of the drone body 1. The top of the drone body 1 is equipped with a telescopic and adjustable uniform spraying mechanism 3; The telescopic adjustable uniform spraying mechanism 3 includes a medicine storage tank 301, a liquid infusion pump 302, a central mounting crossbar 303, a movable end rod 304, a mounting arc seat 305, an adjusting sleeve 306, a connecting swing rod 307, a spray nozzle 308, a main medicine infusion tube 309, a liquid guiding tube 310, and a binding strap 311. A medicine storage tank 301 is fixedly connected to the top center of the main body 1 of the drone, and an infusion pump 302 is fixedly connected to one end of the bottom surface of the medicine storage tank 301. The support base 2 has a central mounting crossbar 303 fixedly connected to its end via a connecting seat. Both ends of the central mounting crossbar 303 are provided with movable end rods 304. An arc-shaped mounting seat 305 is equidistantly sleeved on the outer side of the movable end rod 304. An adjusting sleeve 306 is fixedly connected at the end of the arc-shaped mounting seat 305 corresponding to the position on the outer side of the movable end rod 304. A connecting swing rod 307 is fixedly connected to the bottom of the arc-shaped mounting seat 305. A spraying nozzle 308 is fixedly connected to the bottom of the connecting swing rod 307. A drug delivery main tube 309 is fixedly connected to the middle of the bottom end of the infusion pump 302, and a liquid guiding tube 310 is fixedly connected to one side of the bottom of the drug delivery main tube 309. A binding strap 311 is wrapped around the outer sides of the movable end rod 304 and the main delivery tube 309. The inner walls of the mounting arc seat 305 and the adjusting sleeve 306 are tightly fitted to the outer side of the movable end rod 304. A flip-over buckle is provided on the side of the adjusting sleeve 306. The end of the liquid guiding tube 310 is connected to the corresponding spray nozzle 308. The central mounting crossbar 303 and the movable end rod 304 are installed to the end of the support base 2 through the mounting seat. The liquid is stored in the liquid storage tank 301. The connecting swing rod 307 and the spray nozzle 308 are installed to the bottom of the movable end rod 304 through the cooperation of the mounting arc seat 305 and the adjusting sleeve 306. The flip-up buckle on the side of the sleeve 306 is used to fix the adjusting sleeve 306. The position of the spray nozzle 308 can be adjusted along the outside of the movable end rod 304 by adjusting the flip-up buckle on the side of the adjusting sleeve 306 to adjust the spraying range. The liquid medicine inside the storage tank 301 is introduced into the main delivery pipe 309 by the infusion pump 302. The liquid medicine inside the main delivery pipe 309 is introduced into the spray nozzle 308 for spraying by the liquid guide tube 310. The main delivery pipe 309 is tied by the binding strap 311, thereby realizing the rapid adjustment of the spraying range of the drone spraying device, improving the overall spraying efficiency of the drone spraying device, and optimizing the overall ease of use of the drone spraying device. A flexible buffer connection mechanism 4 is provided at the position between the center mounting crossbar 303 and the end of the movable end bar 304; The flexible buffer connection mechanism 4 includes a front connecting block 401, a rear connecting block 402, a guide rotating shaft 403, a connecting mounting buckle 404, and an arc-shaped limiting spring 405; A connecting front block 401 is fixedly sleeved at the end of the central mounting crossbar 303, and a connecting rear block 402 is fixedly sleeved at one end of the movable end rod 304. A guide rotating shaft 403 is rotatably installed between the connecting front block 401 and the connecting rear block 402. Connecting mounting buckles 404 are threaded onto the middle positions of both sides of the connecting front block 401 and the connecting rear block 402. Arc-shaped limiting springs 405 are fixedly connected between the ends of the two connecting mounting buckles 404 on the same side. The inner side of the connecting front block 401 and the outer side of the connecting rear block 402 slide tightly together. The arc-shaped limiting springs 405 on both sides of the connecting rear block 402 are in a compressed state after installation. An additional connecting assembly is provided at the ends of the crossbar 303 and the movable end rod 304, which are connected via a guide shaft 403. A rotatable connection is made between the front connecting block 401 and the rear connecting block 402. An arc-shaped limiting spring 405 is installed on the side of the front connecting block 401 and the rear connecting block 402 through the connecting mounting buckle 404. The arc-shaped limiting spring 405 flexibly limits the connection between the central mounting crossbar 303 and the movable end rod 304. The elastic deformation of the arc-shaped limiting spring 405 drives the movable end rod 304 to swing, thereby effectively preventing the drone spraying device from overturning and being damaged due to external collisions during flight, and further improving the safety of the drone spraying device. The bottom of the support frame 2 is equipped with a multi-stage flexible buffer mechanism 5; The bottom multi-stage flexible buffer mechanism 5 includes an arc-shaped connecting strip 501, a connecting rectangular top plate 502, a guide telescopic rod 503, a supporting arc-shaped plate 504, a buffer guide spring 505, an elastic buffer belt 506, and a buffer support airbag 507. An arc-shaped connecting strip 501 is sleeved on the bottom of the outer side of the support base 2, and a connecting rectangular top plate 502 is fixedly connected to the bottom of the arc-shaped connecting strip 501; Guide telescopic rods 503 are movably interspersed at the four corners of the top of the connecting rectangular top plate 502. A supporting arc plate 504 is fixedly connected to the bottom of the guide telescopic rod 503. A buffer guide spring 505 is fixedly sleeved at the top of the supporting arc plate 504 corresponding to the outer position of the guide telescopic rod 503. An elastic buffer strip 506 is fixedly connected between two supporting arc-shaped plates 504. A buffer support airbag 507 is fixedly connected to the middle of the top surface of the elastic buffer strip 506. The top and bottom ends of the buffer guide spring 505 are tightly fitted to the connecting rectangular top plate 502 and the supporting arc-shaped plate 504, respectively. The top surface of the buffer support airbag 507 is connected to the bottom surface of the connecting rectangular top plate 502 by adhesive. The components at the bottom of the connecting rectangular top plate 502 are installed to the bottom of the support base frame 2 by the arc-shaped connecting strip 501. The elastic compression of the buffer support airbag 507 provides primary flexible buffering. Then, when the bottom surface of the supporting arc-shaped plate 504 contacts the bottom surface, the elastic compression of the buffer guide spring 505 provides secondary flexible buffering of the kinetic energy at the bottom of the supporting arc-shaped plate 504. The sliding direction of the supporting arc-shaped plate 504 is guided by the guide telescopic rod 503, thereby effectively improving the overall buffering performance of the drone spraying device during landing and improving the safety of the drone spraying device during the lifting and lowering process.

[0017] The working principle and usage process of this utility model: In the actual application process, when it is necessary to spray pesticides on crops through the main body 1 of the drone, the central mounting crossbar 303 and the movable end bar 304 are first installed to the end of the support base 2 through the mounting seat, and the pesticide liquid is stored through the pesticide storage tank 301. Then, by installing the arc-shaped seat 305 and the adjusting sleeve 306, the connecting swing rod 307 and the spraying nozzle 308 are installed to the bottom of the movable end rod 304. The adjusting sleeve 306 is fixed by the flip-out buckle on the side of the adjusting sleeve 306. The position of the spraying nozzle 308 can be adjusted along the outside of the movable end rod 304 by the flip-out buckle on the side of the adjusting sleeve 306 to adjust the spraying range. The liquid medicine inside the storage tank 301 is introduced into the main delivery pipe 309 by the infusion pump 302. Then, the liquid medicine inside the main delivery pipe 309 is introduced into the spraying nozzle 308 for spraying by the liquid guide tube 310. The main delivery pipe 309 is tied by the binding strap 311. This enables the rapid adjustment of the spraying range of the drone spraying device, improves the overall spraying efficiency of the drone spraying device, and optimizes the overall ease of use of the drone spraying device. When buffering is needed between the central mounting crossbar 303 and the movable end bar 304, additional connecting components are provided at the ends of the central mounting crossbar 303 and the movable end bar 304 by connecting front block 401 and connecting rear block 402. The connecting front block 401 and the connecting rear block 402 are rotatably connected by guide rotating shaft 403. Then, the arc-shaped limiting spring 405 is installed on the side of the connecting front block 401 and the connecting rear block 402 by connecting mounting buckle 404. The arc-shaped limiting spring 405 provides flexible limiting between the central mounting crossbar 303 and the movable end bar 304. When the movable end bar 304 collides with the external structure, the elastic deformation of the arc-shaped limiting spring 405 causes the movable end bar 304 to swing, thereby effectively preventing the drone spraying device from overturning and being damaged due to external collisions during flight, and further improving the safety of the drone spraying device. When protection is needed for the drone spraying device during landing, the components connecting the bottom of the rectangular top plate 502 are installed to the bottom of the support base 2 via the arc-shaped connecting strip 501. When the elastic buffer strip 506 contacts the bottom surface, the elastic compression of the buffer support airbag 507 provides primary flexible buffering. Then, when the bottom surface of the support arc plate 504 contacts the bottom surface, the elastic compression of the buffer guide spring 505 provides secondary flexible buffering of the kinetic energy at the bottom of the support arc plate 504. The sliding direction of the support arc plate 504 is guided by the guide telescopic rod 503, thereby effectively improving the overall buffering performance of the drone spraying device during landing and enhancing the safety of the drone spraying device during ascent and descent.

[0018] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A portable, telescopic, adjustable drone spraying device, comprising a drone body (1), characterized in that: The bottom of the main body (1) of the drone is symmetrically fixed with a support frame (2); The top of the drone body (1) is equipped with a telescopic adjustable uniform spraying mechanism (3). The telescopic adjustable uniform spraying mechanism (3) includes a medicine storage tank (301), a liquid infusion pump (302), a central mounting crossbar (303), a movable end rod (304), a mounting arc seat (305), an adjusting sleeve (306), a connecting swing rod (307), a spray nozzle (308), a main medicine infusion pipe (309), a liquid guiding tube (310), and a binding strap (311). A drug storage tank (301) is fixedly connected to the top center of the main body of the drone (1), and an infusion pump (302) is fixedly connected to one end of the bottom surface of the drug storage tank (301). The support base (2) is fixedly connected to a central mounting crossbar (303) at its end via a connecting seat. Both ends of the central mounting crossbar (303) are provided with movable end rods (304). An arc-shaped mounting seat (305) is equidistantly sleeved on the outer side of the movable end rod (304). An adjusting sleeve (306) is fixedly connected to the end of the arc-shaped mounting seat (305) at the position corresponding to the outer side of the movable end rod (304). A connecting swing rod (307) is fixedly connected to the bottom end of the arc-shaped mounting seat (305). A spraying nozzle (308) is fixedly connected to the bottom of the connecting swing rod (307). The infusion pump (302) is fixedly connected to the middle of the bottom end of the infusion main tube (309), and a liquid guiding tube (310) is fixedly connected to one side of the bottom of the infusion main tube (309). The movable end rod (304) and the outer side of the drug delivery tube (309) are both covered by a binding strap (311).

2. The portable, telescopic, adjustable drone spraying device according to claim 1, characterized in that, The inner walls of the mounting arc seat (305) and the adjusting sleeve (306) are tightly fitted to the outer side of the movable end rod (304). The adjusting sleeve (306) is provided with a flip buckle on its side. The end of the liquid guiding tube (310) is connected to the corresponding spray nozzle (308).

3. The portable, telescopic, adjustable drone spraying device according to claim 1, characterized in that, A flexible buffer connection mechanism (4) is provided at the position between the ends of the central mounting crossbar (303) and the movable end bar (304); The flexible buffer connection mechanism (4) includes a front connection block (401), a rear connection block (402), a guide rotation shaft (403), a connection mounting buckle (404), and an arc-shaped limiting spring (405). The central mounting crossbar (303) is fixedly sleeved with a front connecting block (401) at one end, and a rear connecting block (402) is fixedly sleeved at one end of the movable end rod (304). A guide rotating shaft (403) is rotatably inserted between the front connecting block (401) and the rear connecting block (402). Both the front connecting block (401) and the rear connecting block (402) are threadedly installed with connecting mounting buckles (404) at the middle positions on both sides, and an arc-shaped limiting spring (405) is fixedly connected between the ends of the two connecting mounting buckles (404) on the same side.

4. A portable, telescopic, adjustable drone spraying device according to claim 3, characterized in that, The inner side of the connecting front block (401) and the outer side of the connecting rear block (402) are closely slidably fitted together, and the arc-shaped limiting springs (405) on both sides of the connecting rear block (402) are in a compressed state after installation.

5. A portable, telescopic, adjustable drone spraying device according to claim 1, characterized in that, The bottom of the support frame (2) is provided with a multi-level flexible buffer mechanism (5); The bottom multi-level flexible buffer mechanism (5) includes an arc-shaped connecting strip (501), a connecting rectangular top plate (502), a guide telescopic rod (503), a supporting arc-shaped plate (504), a buffer guide spring (505), an elastic buffer strip (506), and a buffer support airbag (507). An arc-shaped connecting strip (501) is sleeved on the bottom of the outer side of the support base (2), and a connecting rectangular top plate (502) is fixedly connected to the bottom of the arc-shaped connecting strip (501). Guide telescopic rods (503) are movably inserted at the four corners of the top of the connecting rectangular top plate (502). A supporting arc plate (504) is fixedly connected to the bottom of the guide telescopic rod (503). A buffer guide spring (505) is fixedly sleeved at the top of the supporting arc plate (504) corresponding to the outer position of the guide telescopic rod (503). An elastic buffer strip (506) is fixedly connected between the two supporting arc plates (504), and a buffer support airbag (507) is fixedly connected to the middle of the top surface of the elastic buffer strip (506).

6. A portable, telescopic, adjustable drone spraying device according to claim 5, characterized in that, The top and bottom ends of the buffer guide spring (505) are tightly fitted to the connecting rectangular top plate (502) and the supporting arc plate (504) respectively, and the top surface of the buffer support airbag (507) is connected to the bottom surface of the connecting rectangular top plate (502) by adhesive.