Drone insulator hydrophobicity testing device

Abstract

This invention relates to a device for testing the hydrophobicity of insulators on unmanned aerial vehicles (UAVs), comprising a UAV body and a water storage tank. The UAV body is equipped with a high-definition camera that captures and saves images of the insulators after water spraying. A control module is located on the side of the UAV body near the water storage tank. The water storage tank is installed at the bottom of the UAV body and provides a reservoir for the atomized water spraying from the spray pipes to the insulators. This UAV insulator hydrophobicity testing device effectively mitigates the vibration of the spray pipes caused by high-altitude wind speeds or high-flow-rate water pumps through multiple sets of shock-absorbing and support mechanisms on the support frame. Furthermore, the device utilizes a rotating design of the movable ring, combined with the spiral grooves of the external toothed ring, spiral protrusions, and linkage column, to dynamically adjust the clamping force position, avoiding prolonged stress on a single location and extending the service life of the spray pipes.

Description

Technical Field

[0001] This invention belongs to the field of hydrophobicity testing technology, specifically a hydrophobicity testing device for unmanned aerial vehicle (UAV) insulators. Background Technology

[0002] Composite insulators in operation may suffer severe surface damage or aging due to factors such as dirt, moisture, discharge, and low temperature. This can lead to a decrease in the surface hydrophobicity of the insulators, causing a sharp drop in surface insulation strength in humid weather such as rainy days. This can result in surface flashover and pollution flashover. Testing the hydrophobicity of composite insulators can effectively assess their pollution resistance, enabling timely maintenance and prevention of accidents.

[0003] The existing traditional method for testing the hydrophobicity of composite insulators relies on manual spraying with a sprayer at the insulator hanging point by climbing a tower and taking photos. This method is time-consuming, labor-intensive, and carries certain risks associated with working at height. When testing the hydrophobicity of insulators by fixing water pipes, stress concentration can easily occur due to wind force at high altitudes and the impact of the water flow itself, which can shorten the service life of the insulators. Furthermore, the water pipes are prone to vibration or external forces, which can cause uneven water spraying, affecting the test accuracy. Long-term vibration may even cause mechanical damage to the water pipes or related components.

[0004] In view of this, a hydrophobicity testing device for UAV insulators is proposed. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] Given the following technical problems in the existing technology: The existing traditional test for the hydrophobicity of composite insulators relies on manual climbing of the tower to the insulator hanging point to spray water manually with a sprayer and then take pictures. This is time-consuming and labor-intensive, and also has certain risks of working at height. When conducting the hydrophobicity test of insulators by fixing water pipes, stress concentration is easily generated due to the wind force at high altitude and the impact of the water flow itself, which shortens the service life. In addition, the water pipes are prone to vibration or external force, resulting in uneven water spraying, affecting the test accuracy, and may even cause mechanical damage to the water pipes or related components due to long-term vibration.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a device for testing the hydrophobicity of unmanned aerial vehicle (UAV) insulators, comprising the UAV body and a water storage tank;

[0008] The drone body is equipped with a high-definition capture camera, which takes pictures of the insulators after water spraying and saves them. A control module is configured on the side of the drone body near the water storage tank.

[0009] The water storage tank is installed at the bottom of the UAV body, and the water storage tank provides a water source for the spray branch pipe to atomize and spray water onto the insulator;

[0010] A support frame is installed between the drone body and the water storage tank. An annular cavity is opened along the inner edge of the support frame. Several sector-shaped cavities A are opened on the outer peripheral wall of the annular cavity. The sector-shaped cavities A can provide space for the extension and retraction of the linkage column when the movable ring rotates. Several sector-shaped cavities A are distributed in a circular array. A sector-shaped cavity B is opened on one side of the sector-shaped cavity A. The sector-shaped cavity B facilitates the rotational movement of the movable ring.

[0011] The support frame is provided with multiple sets of shock absorption mechanisms, the number of which is determined by the size of the UAV body. Each shock absorption mechanism includes a movable ring, a circular channel, an external toothed ring, and an external toothed rack. The movable ring is rotatably installed in the annular cavity. Several support mechanisms are installed along the inner edge of the movable ring. Several circular channels are opened on the movable ring and are arranged in a circumferential array. The inner edge of the circular channel is milled with an annular groove, and the external toothed ring is rotatably installed in the annular groove.

[0012] As a preferred technical solution for a hydrophobicity testing device for UAV insulators, a water pump is installed on the back of the water storage tank. The control module is electrically connected to the water pump and controls the operation of the water pump. The inlet end of the water pump is connected to the water storage tank through a water pipe. A water spray branch pipe is installed above the water storage tank. The inlet end of the water spray branch pipe is connected to the outlet end of the water pump through a water pipe. When the water pump is running, it outputs water from the water storage tank to the water spray branch pipe through the water pipe. The upper surface of the water pump wraps and restricts the end of the water spray branch pipe. The water spray branch pipe is located at the center of the support frame.

[0013] As a preferred technical solution for a hydrophobicity testing device for UAV insulators, a toothed ring is provided on the inner edge of one side of the annular cavity, a connecting cavity is provided on the inner edge of the side of the sector cavity A, and the connecting cavity meshes with the outer toothed ring for transmission, and a movable cavity is provided on the inner edge of the bearing frame near the connecting cavity, and the connecting cavity and the movable cavity are connected.

[0014] As a preferred technical solution for a hydrophobicity testing device for UAV insulators, a linkage plate is installed at the center of the outer shaft of the movable ring. The linkage plate is located in a sector cavity A. One side of the linkage plate is connected to an elastic element A, and the other end of the elastic element A is connected to the inner edge of the sector cavity B. When the movable ring rotates, the linkage plate moves synchronously with the movable ring. The linkage plate squeezes the elastic element A, and the elastic element A plays a resisting role and is crucial for subsequent reset.

[0015] As a preferred technical solution for a test device for the hydrophobicity of drone insulators, the inner edge of the annular groove is provided with a spiral protrusion.

[0016] As a preferred technical solution for a hydrophobicity testing device for UAV insulators, the outer peripheral edge surface of the movable ring is provided with a continuous external rack, a worm is rotatably connected in the connecting cavity, and a gear is installed at one end of the worm. The gear meshes with the external rack for transmission. When the movable ring is driven to rotate, the movable ring can drive the gear and worm to rotate through the external rack.

[0017] As a preferred technical solution for a hydrophobicity testing device for UAV insulators, a worm gear is rotatably connected in the movable cavity. The worm gear and worm shaft cooperate for transmission. The arrangement of the worm gear and worm shaft can prevent the extension elastic plate from exerting a rotational force on the worm gear when the main support plate is driven to extend and retract. A flipping frame is installed on the side of the worm gear. An elastic frame is telescopically connected to one end of the flipping frame that extends out of the bearing frame. When the worm shaft rotates, it can drive the worm gear to rotate in another direction. The flipping frame squeezes the elastic frame. At this time, the elastic frame acts on the outer end of the extension elastic plate. The deformation of the extension elastic plate applies a force to the water spray branch pipe.

[0018] As a preferred technical solution for a hydrophobicity testing device for UAV insulators, the support mechanism includes a main support plate, a linkage column, and an extended elastic plate. The main support plate is located at the inner edge of the movable ring, the linkage column is located on the back of the main support plate, and an extended elastic plate is installed on the side of the main support plate. The main support plate and the extended elastic plate wrap around the outer periphery of the water spray branch pipe. The side of the extended elastic plate away from the main support plate is tilted to facilitate the pre-insertion of the water spray branch pipe.

[0019] As a preferred technical solution for a hydrophobicity testing device for UAV insulators, the surface of the linkage column is provided with a spiral groove. The spiral groove cooperates with the spiral protrusion. While the linkage column is extending and retracting, the spiral groove and the spiral protrusion can drive the outer toothed ring to rotate.

[0020] As a preferred technical solution for a hydrophobicity testing device for UAV insulators, a guide frame is installed at the back corner of the main support plate. One end of the guide frame extends and retracts within a movable ring. An elastic element B is installed between the guide frame and the movable ring, and the elastic element B serves as a buffer for the main support plate.

[0021] The beneficial effects of this invention are:

[0022] 1. This UAV insulator hydrophobicity testing device effectively mitigates the vibration of the water spray branch pipe caused by high air volume at high altitudes or high flow rate of water pumps through multiple sets of shock absorption and support mechanisms on the bearing frame.

[0023] 2. This UAV insulator hydrophobicity testing device uses the rotating design of the movable ring in conjunction with the spiral groove of the external toothed ring, spiral protrusion and linkage column to dynamically adjust the clamping force position, avoid long-term stress in a single position, and extend the service life of the water spray branch pipe.

[0024] 3. This UAV insulator hydrophobicity testing device achieves multi-directional resistance through the extension of the elastic plate under the action of the elastic frame, expands the shock absorption range, improves the stability of the water spray branch pipe in high-altitude operations, and ensures the accuracy of the test.

[0025] 4. This UAV insulator hydrophobicity testing device uses a high-definition camera mounted on the UAV to capture high-definition images of the insulator after water spraying. Combined with a ground monitoring and analysis system, it automatically calculates and determines the hydrophobicity level of the insulator, providing high-precision test results. It is suitable for high-altitude operation environments.

[0026] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 This is a schematic diagram from another perspective of the present invention.

[0030] Figure 3 This is a schematic diagram of the carrier frame of the present invention.

[0031] Figure 4 This is a cross-sectional schematic diagram of the support frame of the present invention.

[0032] Figure 5 Based on the present invention Figure 4 A schematic diagram from another perspective.

[0033] Figure 6 Based on the present invention Figure 4 The diagram below shows the damping and support mechanisms, which are hidden.

[0034] Figure 7 This is a schematic diagram of the shock absorption mechanism and support mechanism of the present invention.

[0035] Figure 8 This is a cross-sectional schematic diagram of the shock absorption mechanism of the present invention.

[0036] Figure 9 Based on the present invention Figure 8 The diagram below shows the supporting structure hidden.

[0037] Figure 10 This is a cross-sectional schematic diagram of the flipping frame of the present invention.

[0038] Figure label:

[0039] 100. Drone body; 101. High-definition capture camera; 102. Control module; 200. Water storage tank; 201. Water spray branch pipe; 202. Connecting bracket; 203. Water pump; 300. Bearing frame; 301. Annular cavity; 302. Sector A; 303. Sector B; 304. Edge toothed ring; 305. Connecting cavity; 306. Movable cavity; 400. Shock absorption mechanism; 401. Movable ring; 402. Linkage plate; 4 03. Elastic component A; 404. Circular channel; 405. Annular groove; 406. External gear ring; 407. Spiral protrusion; 408. External rack; 409. Worm; 410. Gear; 411. Worm wheel; 412. Tilting frame; 413. Elastic frame; 500. Support mechanism; 501. Main support plate; 502. Linkage column; 503. Extended elastic plate; 504. Spiral groove; 505. Guide frame; 506. Elastic component B. Detailed Implementation

[0040] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0042] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0043] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include the three-dimensional spatial dimensions of length, width, and depth.

[0044] Example, refer to Figure 1 and Figure 2 A device for testing the hydrophobicity of insulators for unmanned aerial vehicles (UAVs) includes a UAV body 100 and a water storage tank 200.

[0045] The drone body 100 is equipped with a high-definition capture camera 101, which takes pictures of the insulator after water spraying and saves them. The drone body 100 is equipped with a control module 102 on the side near the water storage tank 200.

[0046] A water storage tank 200 is installed at the bottom of the UAV body 100. The water storage tank 200 provides a water source for the water spray branch pipe 201 to spray water atomized onto the insulator. A water pump 203 is installed on the back of the water storage tank 200. The control module 102 is electrically connected to the water pump 203 and controls the operation of the water pump 203. The inlet end of the water pump 203 is connected to the water storage tank 200 through a water pipe. A water spray branch pipe 201 is installed above the water storage tank 200. The input end of the water spray branch pipe 201 is connected to the output end of the water pump 203 through a water pipe. When the water pump 203 is running, it outputs the water source in the water storage tank 200 to the water spray branch pipe 201 through the water pipe. The upper surface of the water pump 203 wraps and restricts the end of the water spray branch pipe 201. The water spray branch pipe 201 is located at the center of the support frame 300.

[0047] By remotely controlling the drone body 100, the drone body 100 flies to the location of the insulator to be tested. The water pump 203 is operated by the control module 102. The water pump 203 inputs water from the storage tank 200 to the location of the water spray branch pipe 201 and outputs it to the insulator. At this time, high-definition water repellency images are obtained by the high-definition capture camera 101, and the collected data photos are fed back to the ground monitoring system through the transmitter. The analysis system calculates based on the information obtained from the water repellency images and automatically determines the water repellency level.

[0048] Reference Figures 3-6 :

[0049] A support frame 300 is installed between the drone body 100 and the water storage tank 200. An annular cavity 301 is opened on the inner edge of the support frame 300. Several fan-shaped cavities A302 are opened on the outer peripheral wall of the annular cavity 301. The fan-shaped cavities A302 can provide space for the extension and retraction of the linkage column 502 when the movable ring 401 rotates. The several fan-shaped cavities A302 are arranged in a circular array. A fan-shaped cavity B303 is opened on one side of the fan-shaped cavity A302. The fan-shaped cavity B303 facilitates the rotational movement of the movable ring 401.

[0050] A toothed ring 304 is provided on the inner edge of one side of the annular cavity 301. A connecting cavity 305 is provided on the inner edge of the side of the fan-shaped cavity A302, and the connecting cavity 305 meshes with the outer toothed ring 406 for transmission. A movable cavity 306 is provided on the inner edge of the bearing frame 300 near the connecting cavity 305. The connecting cavity 305 and the movable cavity 306 are connected.

[0051] Reference Figure 4 , Figure 5 and Figures 7-10 :

[0052] Multiple sets of shock-absorbing mechanisms 400 are provided on the support frame 300. The number of shock-absorbing mechanisms 400 is determined by the size of the UAV body 100. In order to better illustrate its structure, this solution shows one set in the figure. The shock-absorbing mechanism 400 includes a movable ring 401, a circular channel 404, an external toothed ring 406, and an external rack 408. The movable ring 401 is rotatably installed in the annular cavity 301. Several support mechanisms 500 are installed on the inner edge of the movable ring 401. Several circular channels 404 are opened on the movable ring 401. The circular channels 404 are arranged in a circumferential array. The inner edge of the circular channel 404 is milled with an annular groove 405. The external toothed ring 406 is rotatably installed in the annular groove 405.

[0053] A linkage plate 402 is installed at the center of the outer shaft of the movable ring 401. The linkage plate 402 is located in the sector cavity A302. One side of the linkage plate 402 is connected to an elastic element A403, and the other end of the elastic element A403 is connected to the inner edge of the sector cavity B303. When the movable ring 401 rotates, the linkage plate 402 moves synchronously with the movable ring 401. The linkage plate 402 squeezes the elastic element A403, and the elastic element A403 plays a resisting role and plays a key role in subsequent reset.

[0054] A spiral protrusion 407 is installed on the inner edge of the annular groove 405;

[0055] The outer peripheral edge surface of the movable ring 401 is provided with a continuous external rack 408. A worm 409 is rotatably connected in the connecting cavity 305. A gear 410 is installed at one end of the worm 409. The gear 410 meshes with the external rack 408 for transmission. When the movable ring 401 is driven to rotate, the movable ring 401 can drive the gear 410 and the worm 409 to rotate through the external rack 408.

[0056] A worm gear 411 is rotatably connected in the movable cavity 306. The worm gear 411 and the worm 409 cooperate for transmission. The arrangement of the worm gear 411 and the worm 409 can prevent the extension elastic plate 503 from exerting a rotational force on the worm gear 411 when the main support plate 501 is driven to extend and retract. A flipping frame 412 is installed on the side of the worm gear 411. One end of the flipping frame 412 that extends out of the bearing frame 300 is telescopically connected to an elastic frame 413. When the worm 409 rotates, it can drive the worm gear 411 to rotate in another direction. The flipping frame 412 squeezes the elastic frame 413. At this time, the elastic frame 413 acts on the outer end of the extension elastic plate 503. The deformation of the extension elastic plate 503 applies a force to the water spray branch pipe 201.

[0057] The elastic frame 413 moves telescopically within the tilting frame 412, and a spring is installed in the tilting frame 412. When the extended elastic plate 503 moves outward with the linkage column 502, the elastic frame 413 deforms and is squeezed into the tilting frame 412 under the action of the worm gear 411 and the worm 409. When the tilting frame 412 is rotated under force, since the elastic frame 413 has already extended into the tilting frame 412, the tilting frame 412 and the elastic frame 413 exert force to squeeze the chamfered part of the extended elastic plate 503.

[0058] Reference Figures 7-9 :

[0059] The support mechanism 500 includes a main support plate 501, a linkage column 502, and an extended elastic plate 503. The main support plate 501 is located at the inner edge of the movable ring 401. The linkage column 502 is located on the back of the main support plate 501. The extended elastic plate 503 is installed on the side of the main support plate 501. The elastic frame 413 slides and rotates on the extended elastic plate 503, ensuring that the extended elastic plate 503 does not affect the elastic frame 413 when rotating around the water spray branch pipe 201. The main support plate 501 and the extended elastic plate 503 wrap around the outer periphery of the water spray branch pipe 201, with the extended elastic plate 503 located away from the main support plate 501. One side of the 1 is tilted to facilitate the pre-insertion of the water spray branch pipe 201; the surface of the linkage column 502 is provided with a spiral groove 504, which cooperates with the spiral protrusion 407. When the linkage column 502 moves in extension and retraction, the spiral groove 504 and the spiral protrusion 407 can drive the external toothed ring 406 to rotate; a guide frame 505 is installed at the back corner of the main support plate 501. One end of the guide frame 505 moves in extension and retraction with the movable ring 401. An elastic element B506 is installed between the guide frame 505 and the movable ring 401. The elastic element B506 buffers the main support plate 501.

[0060] This implementation will achieve the following:

[0061] The drone 100 is remotely controlled to fly to the insulator location to be tested. The water pump 203 is activated via the control module 102, pumping water from the storage tank 200 into the spray pipe 201 and outputting it to the insulator. High-definition images of the hydrophobicity are captured by the high-definition camera 101 and transmitted to the ground monitoring system. The analysis system calculates the hydrophobicity level based on the information from the images. When there is high wind at high altitude or the water pump 203 is operating at high flow, the spray pipe 201 may vibrate. This vibration causes the corresponding main support plate 501 to extend and retract. The main support plate 501 pushes the linkage column 502 towards the interior of the support frame 300. During this process, the guide frame 505 guides the movement, and the elastic element B506 acts as a damping element, reducing the vibration amplitude. As the linkage column 502 extends and retracts, it is connected to the spiral groove 5... The structure of 04 and the spiral protrusion 407 causes the external gear ring 406 to rotate. Under the action of the external gear ring 406 and the side gear ring 304, the movable ring 401 rotates as a whole, thereby adjusting the position of the clamping force and avoiding multiple forces clamping at the same point, thus improving the service life of the water spray branch pipe 201. During this process, the linkage plate 402 will squeeze the elastic element A403, which further reduces the vibration amplitude, thereby improving the overall shock absorption effect. When the movable ring 401 rotates, it relies on the external... The rack 408 drives the gear 410 to rotate, and through the cooperation of the worm 409 and the worm wheel 411, the tilting frame 412 is tilted. The tilting frame 412 drives the elastic frame 413 to exert a pushing force on the outer end of the extended elastic plate 503 towards the water spray branch pipe 201. This improves the overall shock absorption range, and the symmetrical extended elastic plate 503 can also achieve multi-directional control and shock absorption by moving inward at the same time, thereby improving the stability of the water spray branch pipe 201 when working at height, and thus improving the accuracy of the water repellency test.

[0062] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for testing the hydrophobicity of unmanned aerial vehicle (UAV) insulators, characterized in that: Includes the drone body (100) and a water storage tank (200); The drone body (100) is equipped with a high-definition capture camera (101), and a control module (102) is configured on the side of the drone body (100) near the storage water tank (200). The water storage tank (200) is installed at the bottom of the UAV body (100); A support frame (300) is installed between the UAV body (100) and the water storage tank (200). The support frame (300) is connected to the UAV body (100) through a connecting bracket (202). An annular cavity (301) is opened on the inner edge of the support frame (300). A plurality of sector cavities A (302) are opened on the outer peripheral wall of the annular cavity (301). The plurality of sector cavities A (302) are arranged in a circular array. A sector cavity B (303) is opened on one side of the sector cavity A (302). The bearing frame (300) is provided with multiple sets of shock absorption mechanisms (400). The shock absorption mechanism (400) includes a movable ring (401), a circular channel (404), an external toothed ring (406), and an external rack (408). The movable ring (401) is rotatably installed in the annular cavity (301). Several support mechanisms (500) are installed on the inner edge of the movable ring (401). Several circular channels (404) are opened on the movable ring (401). The several circular channels (404) are arranged in a circumferential array. The inner edge of the circular channel (404) is milled with an annular groove (405). The external toothed ring (406) is rotatably installed in the annular groove (405). The inner edge of the annular groove (405) is provided with a spiral protrusion (407). The support mechanism (500) includes a main support plate (501), a linkage column (502), and an extension elastic plate (503). The main support plate (501) is located at the inner edge of the movable ring (401). The linkage column (502) is located on the back of the main support plate (501). An extension elastic plate (503) is installed on the side of the main support plate (501). The side of the extension elastic plate (503) away from the main support plate (501) is treated with an inclined angle. The surface of the linkage column (502) is provided with a spiral groove (504), which cooperates with the spiral protrusion (407); When the linkage column (502) moves in extension and retraction, the structure of the spiral groove (504) and spiral protrusion (407) causes the outer toothed ring (406) to rotate. Under the action of the outer toothed ring (406) and the side toothed ring (304), the moving ring (401) rotates as a whole, thereby adjusting the position of the clamping force and avoiding multiple forces clamping at the same position point, thereby improving the service life of the water spray branch pipe (201). A toothed ring (304) is provided on the inner edge of one side of the annular cavity (301). A connecting cavity (305) is provided on the inner edge of the side of the fan-shaped cavity A (302), and the connecting cavity (305) meshes with the outer toothed ring (406) for transmission. A movable cavity (306) is provided on the inner edge of the bearing frame (300) near the connecting cavity (305). The connecting cavity (305) and the movable cavity (306) are connected. The structure of the spiral groove (504) and spiral protrusion (407) causes the outer toothed ring (406) to rotate. Under the action of the outer toothed ring (406) and the side toothed ring (304), the moving ring (401) rotates as a whole, thereby adjusting the position of the clamping force and avoiding multiple forces clamping at the same position point, thereby improving the service life of the water spray branch pipe (201).

2. The device for testing the hydrophobicity of UAV insulators according to claim 1, characterized in that: A water pump (203) is installed on the back of the storage tank (200). The control module (102) is electrically connected to the water pump (203). The inlet end of the water pump (203) is connected to the storage tank (200) through a water pipe. A water spray branch pipe (201) is installed above the storage tank (200). The input end of the water spray branch pipe (201) is connected to the output end of the water pump (203) through a water pipe. The water spray branch pipe (201) is located at the center of the support frame (300).

3. The drone insulator hydrophobicity testing device of claim 1, wherein: A linkage plate (402) is installed at the center of the outer shaft of the movable ring (401). The linkage plate (402) is located in the sector cavity A (302). One side of the linkage plate (402) is connected to an elastic element A (403), and the other end of the elastic element A (403) is connected to the inner edge of the sector cavity B (303).

4. The drone insulator hydrophobicity testing device of claim 1, wherein: The outer peripheral edge surface of the movable ring (401) is provided with a continuous external rack (408), and a worm (409) is rotatably connected in the connecting cavity (305). A gear (410) is installed at one end of the worm (409), and the gear (410) meshes with the external rack (408) for transmission.

5. The drone insulator hydrophobicity testing device of claim 1, wherein: A worm gear (411) is rotatably connected in the active cavity (306). The worm gear (411) is engaged with the worm (409) for transmission. A flipping frame (412) is installed on the side of the worm gear (411). An elastic frame (413) is telescopically connected to one end of the flipping frame (412) that extends out of the bearing frame (300).

6. The drone insulator hydrophobicity testing device of claim 1, wherein: A guide frame (505) is installed at the back corner of the main support plate (501). One end of the guide frame (505) is in the telescopic movement of the movable ring (401). An elastic element B (506) is installed between the guide frame (505) and the movable ring (401).

Images