Airborne cleaning system assembly of unmanned aerial vehicle

Abstract

The utility model discloses an unmanned aerial vehicle airborne cleaning system assembly which comprises a water tank structure and a bottom plate installed at the bottom of the water tank structure in an attached mode, a water pump is installed through the bottom plate, a mounting device with an adjustable inclination angle is installed at the bottom of the bottom plate, and a spray head unit is installed through the mounting device. The spray head unit is matched with the water pump; the angle of the mounting device in the device can be adjusted, through angle adjustment, the distance between spray heads at the two ends and a photovoltaic panel is kept consistent, when water flow is sprayed, the distance between the spray heads and the photovoltaic panel is consistent, generated counter-acting force is approximate, the flight attitude of the unmanned aerial vehicle is stable, and cleaning of the photovoltaic panel is more stable and reliable; and the angles of the nozzles at the two ends relative to the photovoltaic panel are adjustable, so that the counter-acting force generated during operation of the nozzles can provide certain power for advancing of the unmanned aerial vehicle, the energy consumption during advancing of the unmanned aerial vehicle is reduced, and the endurance time is prolonged.

Description

Technical Field

[0001] This utility model relates to a component of an airborne cleaning system for unmanned aerial vehicles (UAVs). Background Technology

[0002] Unmanned aerial vehicle (UAV) airborne cleaning systems are a highly efficient and flexible high-altitude cleaning solution, widely used in applications such as building curtain walls, photovoltaic panels, and wind turbine blades. The following is a detailed introduction to its main components:

[0003] As a carrier for a cleaning system, drones need to possess high stability, large payload capacity, and long endurance. Common types of drones include multi-rotor drones and tethered drones.

[0004] Multi-rotor drones: suitable for short-duration, small-area cleaning tasks, such as Shanxi Haochen's curtain wall cleaning drone, which can fly at an altitude of up to 200 meters and has a cleaning coverage rate of up to 99.8%.

[0005] Tethered drones: These drones achieve unlimited flight time through ground power supply. For example, the Maiyouwei FC dual-tethered drone can work continuously for 8-10 hours, making it suitable for long-term operations.

[0006] Cleaning device: The cleaning device is a modification and upgrade of an existing industrial drone. It installs accessories such as water tanks, nozzles, and water pumps on the lower part of the drone. The water pump draws water from the tank and sprays it onto the surface of the photovoltaic panel through the nozzles to complete the cleaning.

[0007] However, we have encountered the following problems in actual use:

[0008] With the help of the stabilization system, the drone hovers horizontally, while the photovoltaic panel is tilted. The different distances between the nozzles at both ends of the photovoltaic panel and the photovoltaic panel cause the two nozzles to experience different reaction forces when the water is sprayed onto the photovoltaic panel. This results in the drone being in a constant state of leveling, leading to poor stability and increased energy consumption.

[0009] Based on the above issues, we designed a drone-borne cleaning system component that can adapt to the tilt of the photovoltaic panel, making the drone flight more stable. Utility Model Content

[0010] The technical problem to be solved by this utility model is to provide a drone-borne cleaning system component that can adapt to the tilt of the photovoltaic panel, making the drone flight more stable.

[0011] To solve the above problems, the present invention adopts the following technical solution:

[0012] A drone-borne cleaning system component includes a water tank structure and a base plate fitted to the bottom of the water tank structure. A water pump is mounted on the base plate, and an adjustable tilt angle mounting device is mounted on the bottom of the base plate. A nozzle unit is mounted on the mounting device, and the nozzle unit works in conjunction with the water pump.

[0013] Preferably, the water tank structure includes a water tank body, a water collection part is injection molded at the bottom of the water tank body, the bottom surface of the water collection part is lower than the bottom surface of the water tank body, the bottom plate fits the water tank body and the water collection part, a groove is injection molded at the upper end of the water tank body, a water injection pipe is injection molded in the middle of the groove, a pipe cap is detachably fitted at the upper end of the water injection pipe, and a vent hole is provided at the bottom of the groove, on the outside of the water injection pipe.

[0014] Preferably, the mounting device includes a base, a central sleeve, a rotating shaft, a micro electric actuator, a oscillating servo, and a gearbox. The lower part of the base is a first rotating opening, and the side of the base is a second rotating opening. The central sleeve passes through the first rotating opening, and a pin is fitted between the central sleeve and the first rotating opening. A rotating seat is provided on the top of the central sleeve. The micro electric actuator is rotatably mounted between the rotating seat and the second rotating opening. The rotating shaft passes through the central sleeve, and a bearing is fitted between the rotating shaft and the central sleeve. A frame plate is welded to the side of the central sleeve. The oscillating servo is fixed to the top of the frame plate. The gearbox is fixed to the input end of the oscillating servo, and the rotating shaft is fixed to the output end of the gearbox. The nozzle unit is adjustablely mounted on the rotating shaft. The base is fixed to the base plate.

[0015] Preferably, the nozzle unit includes a nozzle and a sliding sleeve. The sliding sleeve is sleeved on the rotating shaft and can slide along the axial direction of the rotating shaft. A first frame plate is welded to the outer side of the sliding sleeve. The nozzle is fixed by the first frame plate and connected to the water pump.

[0016] Preferably, two first frame plates are symmetrically arranged, the number of nozzles is the same as that of the first frame plates, a three-way pipe is connected between the two nozzles on the same side, a water pump is connected to the water tank body by a water suction pipe, a solenoid valve is installed on the water suction pipe, a three-way connector is installed at the output end of the water pump, and a high-pressure water pipe is assembled between the three-way connector and the three-way pipes on both sides respectively.

[0017] Preferably, a guide groove is machined on the rotating shaft, one end of which axially penetrates the rotating shaft. A guide block that matches the guide groove is provided on the inner wall of the sliding sleeve. A locking screw is screwed down on the top of the sliding sleeve. After the locking screw is screwed in, it abuts against the guide groove, and the position of the sliding sleeve is fixed at this time.

[0018] The beneficial effects of this utility model are:

[0019] The mounting device in this apparatus is angle-adjustable, ensuring that the distance between the nozzles at both ends and the photovoltaic panel remains consistent. When water is sprayed, the distance from the photovoltaic panel is consistent, resulting in similar reaction forces. This stabilizes the drone's flight attitude and makes the cleaning of the photovoltaic panel more stable and reliable. Furthermore, the adjustable angle of the nozzles relative to the photovoltaic panel allows the reaction force generated during nozzle operation to provide some propulsion for the drone's forward movement, reducing energy consumption and extending its flight time.

[0020] This device has a simple structure and low cost. It can be used to upgrade existing industrial or agricultural drones at a low cost, making it suitable for widespread use. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 A three-dimensional view of the mounting device;

[0024] Figure 3 A schematic diagram of the installation of the center sleeve;

[0025] Figure 4 This is a magnified view of point A;

[0026] Figure 5 This is a structural diagram of a water pump. Detailed Implementation

[0027] All features disclosed in this specification, or steps in all methods or processes disclosed herein, may be combined in any way, except for mutually exclusive features and / or steps.

[0028] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0029] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, in the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "socket," "connect," "through," and "plug-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] See Figure 1 The UAV-borne cleaning system component shown includes a water tank structure 1 and a base plate 2 attached to the bottom of the water tank structure. A water pump 3 is installed on the base plate 2. An adjustable tilt angle mounting device 4 is installed on the bottom of the base plate 2. A nozzle unit 5 is installed on the mounting device 4. The nozzle unit 5 works in conjunction with the water pump 3.

[0033] In the above technical solution, the adjustable mounting device 4 can adapt to the tilt angle of the photovoltaic panel, so that the distance between the nozzle unit 5 at both ends of the mounting device 4 and the photovoltaic panel is nearly the same, and the reaction force generated after the nozzle unit 5 sprays water mist is nearly equal, ensuring that the drone's flight attitude is stable during photovoltaic cleaning, so as to complete the photovoltaic panel cleaning work more efficiently.

[0034] See Figure 1As shown, the water tank structure 1 includes a water tank body 11. A water collection part 12 is injection molded at the bottom of the water tank body 11. The bottom surface of the water collection part 12 is lower than the bottom surface of the water tank body 11. The bottom plate 2 fits the water tank body 11 and the water collection part 12. A groove 13 is injection molded at the upper end of the water tank body 11. A water injection pipe 14 is injection molded in the middle of the groove 13. A pipe cap 15 is detachably fitted at the upper end of the water injection pipe 14. A vent hole 16 is provided at the bottom of the groove 13, on the outside of the water injection pipe 14.

[0035] In the above technical solution, the water tank body 11 is made of lightweight PVC material and is integrally molded by injection molding.

[0036] The water tank body 11 has a water capacity of 40~60L, and the weight of the entire device after being mounted is less than the maximum takeoff payload of the industrial drone.

[0037] The design of the water collection section 12 allows water to collect at the water collection section 12 even when the drone is tilted during flight, making it easy for the water pump 3 to extract the water.

[0038] With the design of groove 13, when water is injected through water injection pipe 14, some of the water that is spilled can be recovered through groove 13.

[0039] The vent 16 is designed to maintain the pressure balance inside and outside the water tank body 11, so as to facilitate the water pump 3 to pump water. At the same time, the vent 16 can also recover water that has spilled into the groove 13.

[0040] See Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the mounting device 4 includes a base 41, a central sleeve 42, a rotating shaft 43, a miniature electric actuator 44, a oscillating servo 45, and a gearbox 46. The lower part of the base 41 is a first rotating opening 411, and the side of the base is a second rotating opening 412. The central sleeve 42 passes through the first rotating opening 411, and a pin 413 is fitted between the central sleeve 42 and the first rotating opening 411. A rotating seat 421 is provided on the top of the central sleeve 42, and the miniature electric actuator 44 is rotatably mounted on the rotating seat 421 and the rotating seat 421. Between the second rotating ports 412, the rotating shaft 43 passes through the central sleeve 42, and a bearing 4433 is fitted between the rotating shaft 43 and the central sleeve 42. A frame plate 47 is welded to the side of the central sleeve 42. The oscillating servo 45 is fixed to the top of the frame plate 47. The gearbox 46 is fixed to the input end of the oscillating servo 45, and the rotating shaft 43 is fixed to the output end of the gearbox 46. The nozzle unit 5 is adjustablely mounted on the rotating shaft 43. The base 41 is fixed to the base plate 2.

[0041] In the above technical solution, the center sleeve 42 can swing ±20° along the pin shaft 413 under the extension and retraction of the shaped electric actuator 44. The swing of the center sleeve 42 allows the nozzle unit 5 to adapt to the tilt angle of the photovoltaic panel.

[0042] Under the action of the oscillating servo motor 45, the rotating shaft 43 can be driven to swing ±20°. The spray direction of the nozzle unit 5 is opposite to the forward direction of the drone, so that the water sprayed by the nozzle unit 5 provides a certain amount of power for the forward movement of the drone.

[0043] The above technical solution also includes a remote control module that communicates remotely with the UAV remote control panel to control the water pump, miniature electric actuator, and oscillating servo.

[0044] See Figure 2 , Figure 4 and Figure 5 As shown, the nozzle unit 5 includes a nozzle 51 and a sliding sleeve 52. The sliding sleeve 52 is sleeved on the rotating shaft 43 and can slide along the axial direction of the rotating shaft 43. A first frame plate 53 is welded to the outer side of the sliding sleeve 52. The nozzle 51 is fixed by the first frame plate 53 and the nozzle 51 is connected to the water pump 3.

[0045] In the above technical solution, the position of the nozzle 51 can be adjusted by the displacement of the sliding sleeve 52, and the distance between the nozzles 51 on both sides of the rotating shaft 43 is less than the length of the photovoltaic panel.

[0046] See Figure 4 and Figure 5 Two first frame plates 53 are symmetrically arranged. The number of nozzles 51 is the same as that of the first frame plates 53. A three-way pipe 54 is connected between the two nozzles 51 on the same side. A water pump 3 is connected to the water tank body 11 by a water suction pipe 55. A solenoid valve 56 is installed on the water suction pipe 55. A three-way connector 57 is installed at the output end of the water pump 3. High-pressure water pipes 58 are assembled between the three-way connector 57 and the three-way pipes 54 on both sides.

[0047] The single-sided dual-nozzle design increases the spray volume and improves the cleaning effect.

[0048] See Figure 5 As shown, a guide groove 431 is machined on the rotating shaft 43. One end of the guide groove 431 axially passes through the rotating shaft 43. A guide block 521 that matches the guide groove 431 is provided on the inner wall of the sliding sleeve 52. A locking screw 522 is screwed down on the top of the sliding sleeve 52. After the locking screw 522 is screwed in, it abuts against the guide groove 431, and the position of the sliding sleeve 52 is fixed at this time.

[0049] The above technical solution allows the sliding sleeve 52 to only move along the axial direction of the rotating shaft 43.

[0050] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0051] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0052] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0053] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0054] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. 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 component of an unmanned aerial vehicle (UAV) airborne cleaning system, characterized in that: It includes a water tank structure (1) and a base plate (2) attached to the bottom of the water tank structure. A water pump (3) is installed through the base plate (2). An adjustable tilting angle mounting device (4) is installed at the bottom of the base plate (2). A nozzle unit (5) is installed through the mounting device (4). The nozzle unit (5) works in conjunction with the water pump (3).

2. The UAV airborne cleaning system component according to claim 1, characterized in that: The water tank structure (1) includes a water tank body (11), a water collection part (12) is formed by injection molding at the bottom of the water tank body (11), the bottom surface of the water collection part (12) is lower than the bottom surface of the water tank body (11), the bottom plate (2) fits the water tank body (11) and the water collection part (12), a groove (13) is formed by injection molding at the upper end of the water tank body (11), a water injection pipe (14) is formed by injection molding in the middle of the groove (13), a pipe cap (15) is detachably fitted at the upper end of the water injection pipe (14), and a vent hole (16) is provided at the bottom of the groove (13) on the outside of the water injection pipe (14).

3. The UAV airborne cleaning system component according to claim 2, characterized in that: The mounting device (4) includes a base (41), a central sleeve (42), a rotating shaft (43), a miniature electric actuator (44), a oscillating servo (45), and a gearbox (46). The lower part of the base (41) is a first rotating opening (411), and the side of the base is a second rotating opening (412). The central sleeve (42) passes through the first rotating opening (411), and a pin (413) is fitted between the central sleeve (42) and the first rotating opening (411). A rotating seat (421) is provided on the top of the central sleeve (42), and the miniature electric actuator (44) is rotatably mounted on the rotating seat (421) and the rotating seat (421). Between the second rotating port (412), the rotating shaft (43) passes through the central sleeve (42), and a bearing (4433) is fitted between the rotating shaft (43) and the central sleeve (42). A frame plate (47) is welded to the side of the central sleeve (42). The swing servo (45) is fixed to the top of the frame plate (47). The gearbox (46) is fixed to the input end of the swing servo (45). The rotating shaft (43) is fixed to the output end of the gearbox (46). The nozzle unit (5) is adjustablely mounted on the rotating shaft (43). The base (41) is fixed to the base plate (2).

4. The UAV airborne cleaning system component according to claim 3, characterized in that: The nozzle unit (5) includes a nozzle (51) and a sliding sleeve (52). The sliding sleeve (52) is sleeved on the rotating shaft (43) and can slide along the axial direction of the rotating shaft (43). A first frame plate (53) is welded to the outside of the sliding sleeve (52). The nozzle (51) is fixed by the first frame plate (53). The nozzle (51) is connected to the water pump (3).

5. The UAV airborne cleaning system component according to claim 4, characterized in that: Two symmetrically arranged first frame plates (53) are provided. The number of nozzles (51) is the same as that of the first frame plates (53). A three-way pipe (54) is connected between the two nozzles (51) on the same side. A water pump (3) is connected to the water tank body (11) via a water suction pipe (55). A solenoid valve (56) is installed on the water suction pipe (55). A three-way connector (57) is installed at the output end of the water pump (3). A high-pressure water pipe (58) is assembled between the three-way connector (57) and the three-way pipes (54) on both sides respectively.

6. The UAV airborne cleaning system component according to claim 4, characterized in that: A guide groove (431) is machined on the rotating shaft (43). One end of the guide groove (431) passes through the rotating shaft (43) axially. A guide block (521) that matches the guide groove (431) is provided on the inner wall of the sliding sleeve (52). A locking screw (522) is screwed down on the top of the sliding sleeve (52). After the locking screw (522) is screwed in, it abuts against the guide groove (431). At this time, the position of the sliding sleeve (52) is fixed.

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