Unmanned aerial vehicle body combination for spraying silo wall

Abstract

The invention belongs to the field of spraying, and relates to a silo wall spraying unmanned aerial vehicle body combination which can conduct continuous spraying operation on a silo and complete spraying at a time. According to the technical scheme, the unmanned aerial vehicle comprises an unmanned aerial vehicle body, a spraying assembly and a moving vehicle. Wherein the spraying assembly comprises a plurality of nozzles which are horizontally arranged, and the spraying assembly is fixed on the unmanned aerial vehicle body. And at least one coating storage tank is arranged on the mobile vehicle and is communicated with the nozzle.

Description

Technical Field

[0001] The invention belongs to the field of spraying and relates to a silo wall spraying drone body combination. Background Art

[0002] Silos are outdoor devices for storing grain, coal, cement and other goods. They are generally made of galvanized steel plates, steel plates, etc. To avoid corrosion of the steel plates, anti-rust paint can be sprayed on the outer wall of the silo.

[0003] The height of silos is generally above 20m, and some silos are about 70m high, with a diameter of up to 8m. The outside of silos is usually kept smooth and there are no other buildings nearby, so the process of manually spraying the outer wall of silos is complicated and costly.

[0004] In current technology, drone bodies are used to spray the outer walls of silos. Large industrial-grade drone bodies can carry spray tanks and spray the outer walls of silos along a set flight trajectory.

[0005] However, for large silos, the drone body carries a small number of spray cans and cannot operate continuously and quickly. The drone body needs to land frequently and replace the spray cans. When operating again, there will be errors in the initial positioning of the drone body, which can easily cause the spraying area to be missed.

[0006] In addition, after the drone carries the spray can, the drone has a higher load, so the output power of the drone is higher and the running time is shorter. Moreover, after the drone is disturbed by external forces, the vibration amplitude is larger and the self-reset ability is poor, resulting in poor spray quality on the silo surface. Summary of the invention

[0007] In order to overcome the defects in the above-mentioned related technologies, the present invention proposes a silo wall spraying drone body combination, which can continuously spray the silo and complete the spraying in one time.

[0008] In order to achieve the above technical objectives, the present invention provides a silo wall spraying drone body assembly, the silo wall spraying drone body assembly comprising: a drone body, a spraying assembly and a mobile vehicle. The spraying assembly comprises a plurality of horizontally arranged nozzles, and the spraying assembly is fixed on the drone body. The mobile vehicle is provided with at least one paint storage tank, and the at least one paint storage tank is connected to the nozzle.

[0009] Preferably, the silo wall spraying drone body combination also includes a spray pipe assembly, and the spray pipe assembly includes: a telescopic part, a spray pump and a feed hose. The outer shells of at least two telescopic parts are fixed relative to the ground. The feed ends of at least two spray pumps are each provided with a first one-way valve, the inlet end of the first one-way valve is connected to the corresponding paint storage tank in the at least one paint storage tank, the discharge ends of at least two spray pumps are each connected to the second one-way valve, and at least two spray pumps are connected to the piston of the corresponding telescopic part, and the telescopic part provides power for the operation of the spray pump. One end of the feed hose is connected to the outlet end of the second one-way valve, and the other end of the feed hose is connected to the nozzle.

[0010] Preferably, the spray pump comprises: a spray housing and a spray plunger. The spray housing is a pipe fitting, one end of which is provided with an outlet, a side wall of the spray housing close to the outlet is provided with an inlet, and the first one-way valve is connected to the inlet. The spray plunger is a rod, one end of which is provided with a rubber piston, the rubber piston is movably provided in the spray housing, and the other end of the spray plunger is fixedly connected to the piston of the telescopic member.

[0011] Preferably, the spray tube assembly further comprises a hose storage component, and the hose storage component comprises: a cylindrical roller, a stepper motor and a rotary joint. The cylindrical roller is a hollow cylindrical tube, and the cylindrical roller is arranged horizontally. The cylindrical roller has a tendency to rotate around its center line. One end of the feed hose passes through the side wall of the cylindrical roller and extends to the inside of the cylindrical roller. The feed hose is wound around the cylindrical roller. The output shaft of the stepper motor is fixedly connected to the cylindrical roller, and the center line of the output shaft of the stepper motor is colinear with the center line of the cylindrical roller. The rotary joint is fixed to one end of the cylindrical roller away from the stepper motor, one end of the rotary joint is connected to the feed hose, and the other end of the rotary joint is connected to the outlet end of the second one-way valve.

[0012] Preferably, the spray assembly comprises: a connecting bracket, a first nozzle fixing bracket and a second nozzle fixing bracket. The connecting bracket is a rod, and one end of the connecting bracket is clamped with the drone body. The first nozzle fixing bracket is fixedly connected to the connecting bracket, and at least one nozzle is arranged on the first nozzle fixing bracket. The second nozzle fixing bracket is provided with at least one nozzle, a part of the plurality of second nozzle fixing brackets is arranged on one side of the first nozzle fixing bracket, and the part of the second nozzle fixing brackets are hinged in sequence, and the corresponding second nozzle fixing brackets in the part of the second nozzle fixing brackets are hinged to one side of the first nozzle fixing bracket, and another part of the plurality of second nozzle fixing brackets are arranged on one side of the first nozzle fixing bracket, and the other part of the second nozzle fixing brackets are hinged in sequence, and the corresponding second nozzle fixing brackets in the other part of the second nozzle fixing brackets are hinged to the other side of the first nozzle fixing bracket.

[0013] Preferably, the silo wall spraying drone body assembly further includes a cleaning component, which includes: a cleaning liquid storage tank, a cleaning pump and a third one-way valve. The cleaning liquid storage tank is filled with cleaning liquid. The cleaning pump is connected to the cleaning liquid storage tank, and the cleaning pump is also connected to the pipeline between the first one-way valve and the paint storage tank. A third one-way valve is provided on the pipeline between the paint storage tank and the cleaning pump.

[0014] Preferably, the silo wall spraying drone body assembly further comprises a controller, the controller is connected to the drone body by wireless signals, the controller is connected to the mobile vehicle by wireless signals, and the drone body is connected to the mobile vehicle by wireless signals.

[0015] The beneficial effects of the present invention are: The present invention adopts a spraying component, which can realize a large-scale spraying operation on the outer wall of the silo. At the same time, in conjunction with the drone body, it has the advantages of a wide spraying area at one time and high spraying efficiency.

[0016] The present invention adopts a mobile vehicle, which can follow the running path of the drone body to transport the paint storage tank, separate the paint storage tank from the drone body, reduce the carrying capacity of the drone body, and improve the working efficiency of the drone body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1It is a structural diagram of the present invention. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0022] like Figure 1 As shown, some embodiments of the present invention provide a silo wall spraying drone body 1 combination, the silo wall spraying drone body 1 combination comprises: a drone body 1, a spraying assembly 2 and a mobile vehicle 3. The spraying assembly 2 comprises a plurality of horizontally arranged nozzles, and the spraying assembly 2 is fixed on the drone body 1. The mobile vehicle 3 is provided with at least one paint storage tank, and the at least one paint storage tank is connected to the nozzle.

[0023] In some examples, the drone body 1 is an industrial-grade drone body 1, and the lower part of the drone body 1 is fixedly connected to the spray assembly 2. The spray assembly 2 may include multiple nozzles arranged in the horizontal direction, for example, 3 nozzles or 5 nozzles may be arranged in the horizontal direction. The spacing between adjacent nozzles may be 30 cm to 60 cm. A paint storage tank is provided on the mobile vehicle 3, and multiple nozzles are connected to the paint storage tank.

[0024] In the present application, the drone body 1 can perform vertical spraying operations on the outer wall of the silo, that is, each time the drone body 1 completes a vertical spraying operation, a vertical spray strip is formed on the outer wall of the silo. The drone body 1 completes the spraying of the outer wall of the silo after performing vertical spraying operations around the outer wall of the silo multiple times.

[0025] It is understandable that after the drone body 1 completes a vertical spraying operation, when it flies to another location of the silo, the mobile vehicle 3 should be adaptively transferred according to the flight path of the drone body 1. Specifically, the mobile vehicle 3 should always be directly below the silo to avoid bending or kinking of the pipe between the nozzle and the paint tank.

[0026] Alternatively, the drone body 1 can spray the outer wall of the silo from top to bottom to complete the overall silo outer wall spraying operation. Accordingly, the mobile vehicle 3 should circle around the silo body according to the flight path of the drone body 1, that is, when the drone body 1 runs along the flight path, the orthographic projection on the horizontal plane is the transfer path and transfer speed of the mobile vehicle 3.

[0027] In this application, the drone body 1 only carries the nozzle, which can reduce the load on the drone body 1 and improve the working efficiency of the drone body 1. In addition, when the drone body 1 is disturbed by external forces, the load carried by the drone body 1 is small, so the drone body 1 can quickly return to the original path. Overall, the drone body 1 shakes more frequently under the action of external forces, but the shaking amplitude is smaller, which will not cause the nozzle to repeat spraying on the outer wall of the silo or cause large-area spraying omissions due to shaking.

[0028] The technical solution of the present application will not be limited by the carrying weight of the drone body 1, and the drone body 1 can continue to operate under the premise that the power is sufficient, and will not drop down to replace the spray can due to the exhaustion of paint in the spray can. It can speed up the spraying speed and improve the working efficiency, and is suitable for the outer wall spraying operation of large silos.

[0029] In some embodiments, the silo wall spraying drone body 1 combination also includes a spray pipe assembly, and the spray pipe assembly includes: a telescopic member, a spray pump and a feed hose. The outer shells of at least two telescopic members are relatively fixed to the ground. The feed ends of at least two spray pumps are each provided with a first one-way valve, the inlet end of the first one-way valve is connected to the corresponding paint storage tank in the at least one paint storage tank, the discharge ends of at least two spray pumps are each connected to the second one-way valve, and at least two spray pumps are connected to the piston of the corresponding telescopic member, and the telescopic member provides power for the operation of the spray pump. One end of the feed hose is connected to the outlet end of the second one-way valve, and the other end of the feed hose is connected to the nozzle.

[0030] The spray pump comprises: a spray housing and a spray plunger. The spray housing is a pipe fitting, one end of which is provided with an outlet, a side wall of the spray housing close to the outlet is provided with an inlet, and the first one-way valve is connected to the inlet. The spray plunger is a rod, one end of which is provided with a rubber piston, the rubber piston is movably provided in the spray housing, and the other end of the spray plunger is fixedly connected to the piston of the telescopic member.

[0031] In some examples, the spray pipe assembly is fixed on the mobile vehicle 3, the telescopic member can be an electric push rod, and the housing of the telescopic member is fixed on the mobile vehicle 3. The spray pump is a plunger pump, and the spray pump is fixed on the mobile vehicle 3. Specifically, the spray housing is fixed on the mobile vehicle 3, the spray plunger is arranged in the spray housing, and the spray plunger is fixedly connected to the piston rod of the electric push rod. When the electric push rod is running, the corresponding rubber piston can be driven to reciprocate in the spray housing.

[0032] The rubber piston fits tightly against the inner wall of the spray shell. When the rubber piston is away from the outlet end of the spray shell, the spray shell can absorb paint from the paint storage tank. When the rubber piston moves toward the outlet end of the spray shell, the paint in the spray shell is squeezed out. At the same time, the piston rod running speed of the electric push rod can be controlled according to the number of nozzles, so that the paint sprayed from the nozzle maintains an appropriate pressure to complete the spraying operation normally.

[0033] The two spray pumps can work alternately, allowing the nozzle to spray continuously.

[0034] The spray pump of the present application adopts a plunger pump style, which has a simple structure. On the one hand, it is easy to clean, and on the other hand, it is convenient to use a disposable spray pump. For example, the spray shell and the spray plunger are made of hard plastic, which is relatively low in cost. After the spraying is completed, there is no need to worry about the problem of unused paint remaining in the spray pump and forming lumps.

[0035] In some embodiments, the spray tube assembly further includes a hose storage component, and the hose storage component includes: a cylindrical roller, a stepper motor, and a rotary joint. The cylindrical roller is a hollow cylindrical tube, the cylindrical roller is horizontally arranged, and the cylindrical roller has a tendency to rotate around its center line. One end of the feed hose passes through the side wall of the cylindrical roller and extends to the inside of the cylindrical roller, and the feed hose is wound around the cylindrical roller. The output shaft of the stepper motor is fixedly connected to the cylindrical roller, and the center line of the output shaft of the stepper motor is colinear with the center line of the cylindrical roller. The rotary joint is fixed to one end of the cylindrical roller away from the stepper motor, one end of the rotary joint is connected to the feed hose, and the other end of the rotary joint is connected to the outlet end of the second one-way valve.

[0036] In some examples, the hose storage component is disposed on the mobile vehicle 3, and the hose storage component includes: a cylindrical roller bracket, a cylindrical roller, a stepper motor and a rotary joint. The cylindrical roller bracket can be two plates, the cylindrical roller bracket is fixed on the mobile vehicle 3, and the cylindrical roller is disposed between the two plates.

[0037] Specifically, the cylindrical roller includes two cylindrical tubes: a large cylindrical tube and a small cylindrical tube. The large cylindrical tube and the small cylindrical tube are pipe fittings with openings at both ends, wherein the small cylindrical tube is inserted into the large cylindrical tube, the outer wall of the small cylindrical tube is fixedly connected to the inner wall of the large cylindrical tube by a straight rod, and the center line of the small cylindrical tube is collinear with the center line of the large cylindrical tube.

[0038] The two ends of the small cylindrical tubes are connected to the cylindrical roller brackets through the corresponding ones and are connected through bearings. The feeding hose passes through the outside of the large cylindrical tube to the inside, then passes through the small cylindrical tube, and is guided to one end of the small cylindrical tube.

[0039] A rotating joint is fixed at one end of the small cylindrical tube, the material delivery hose is communicated with the rotating joint, and the rotating joint is also communicated with the outlet end of the second one-way valve.

[0040] The output shaft of the stepper motor is coaxially fixedly connected to the other end of the small cylindrical tube. The operation of the stepper motor is controlled according to the running path of the drone body 1, so that the length of the feed hose is adapted to the distance between the drone body 1 and the mobile vehicle 3, so as to avoid the feed hose being pulled. Specifically, when the drone body 1 is rising, the stepper motor drives the cylindrical roller to run, so that the feed hose is wound out from the cylindrical roller. When the drone body 1 is descending, the stepper motor drives the cylindrical roller to run, so that the feed hose is wound around the cylindrical roller. It can be understood that when the stepper motor is running, the reserved length of the feed hose (the part not wound around the cylindrical roller) should be greater than the height from the drone body 1 to the mobile vehicle 3, and the mobile vehicle 3 should follow the drone body 1 to keep running, that is, the mobile vehicle 3 is basically directly below the drone body 1.

[0041] The spray assembly 2 includes: a connecting bracket, a first nozzle fixing bracket, and a second nozzle fixing bracket. The connecting bracket is a rod, and one end of the connecting bracket is clamped with the drone body 1. The first nozzle fixing bracket is fixedly connected to the connecting bracket, and at least one nozzle is arranged on the first nozzle fixing bracket. The second nozzle fixing bracket is provided with at least one nozzle, a part of the second nozzle fixing brackets among the plurality of second nozzle fixing brackets are arranged on one side of the first nozzle fixing bracket, and the part of the second nozzle fixing brackets are hinged in sequence, and the corresponding second nozzle fixing brackets among the part of the second nozzle fixing brackets are hinged to one side of the first nozzle fixing bracket, and another part of the second nozzle fixing brackets among the plurality of second nozzle fixing brackets are arranged on one side of the first nozzle fixing bracket, and the other part of the second nozzle fixing brackets are hinged in sequence, and the corresponding second nozzle fixing brackets among the other part of the second nozzle fixing brackets are hinged to the other side of the first nozzle fixing bracket.

[0042] The silo wall spraying drone body 1 combination also includes a cleaning component, which includes: a cleaning liquid storage tank, a cleaning pump and a third one-way valve. The cleaning liquid storage tank is filled with cleaning liquid. The cleaning pump is connected to the cleaning liquid storage tank, and the cleaning pump is also connected to the pipeline between the first one-way valve and the paint storage tank. A third one-way valve is provided on the pipeline between the paint storage tank and the cleaning pump.

[0043] The silo wall spraying drone body 1 combination also includes a controller, which is connected to the drone body 1 by wireless signals, and the controller is connected to the mobile vehicle 3 by wireless signals. The drone body 1 is connected to the mobile vehicle 3 by wireless signals.

[0044] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0045] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A silo wall spraying drone body assembly, characterized in that: include: The drone body, A spraying assembly, the spraying assembly comprising a plurality of horizontally arranged nozzles, the spraying assembly being fixed on the drone body; A mobile vehicle is provided with at least one paint storage tank, and the at least one paint storage tank is connected to the nozzle.

2. The silo wall spraying drone body assembly according to claim 1 is characterized in that: The silo wall spraying drone body assembly also includes a spray pipe assembly, and the spray pipe assembly includes: Telescopic members, at least two of which have shells fixed relative to the ground; A spray pump, wherein the feed ends of at least two spray pumps are each provided with a first one-way valve, the inlet end of the first one-way valve is communicated with a corresponding paint storage tank in the at least one paint storage tank, the discharge ends of at least two spray pumps are each communicated with a second one-way valve, and at least two spray pumps are connected to the pistons of corresponding telescopic members, and the telescopic member provides power for the operation of the spray pump; A material delivery hose, one end of which is connected to the outlet end of the second one-way valve, and the other end of which is connected to the nozzle.

3. The silo wall spraying drone body assembly according to claim 2 is characterized in that: The spray pump comprises: A spray shell, wherein the spray shell is a pipe, an outlet is provided at one end of the spray shell, an inlet is provided on a side wall of the spray shell close to the outlet, and the first one-way valve is connected to the inlet; The spraying plunger is a rod, one end of which is provided with a rubber piston, the rubber piston is movably arranged in the spraying housing, and the other end of the spraying plunger is fixedly connected to the piston of the telescopic member.

4. The silo wall spraying drone body assembly according to claim 2 is characterized in that: The spray pipe assembly further includes a hose receiving component, the hose receiving component including: A cylindrical roller, which is a hollow cylindrical tube, is horizontally arranged, has a tendency to rotate around its center line, one end of the feed hose passes through the side wall of the cylindrical roller and extends to the inside of the cylindrical roller, and the feed hose is wound around the cylindrical roller; A stepper motor, wherein the output shaft of the stepper motor is fixedly connected to the cylindrical roller, and the center line of the output shaft of the stepper motor is collinear with the center line of the cylindrical roller; A rotary joint is fixed to one end of the cylindrical roller away from the stepping motor, one end of the rotary joint is connected to the material delivery hose, and the other end of the rotary joint is connected to the outlet end of the second one-way valve.

5. The silo wall spraying drone body assembly according to any one of claims 1 to 4, characterized in that: The spraying assembly comprises: A connecting bracket, wherein the connecting bracket is a rod, and one end of the connecting bracket is clamped with the drone body; a first nozzle fixing frame, the first nozzle fixing frame is fixedly connected to the connecting bracket, and at least one nozzle is arranged on the first nozzle fixing frame; A second nozzle fixing frame, at least one nozzle is arranged on the second nozzle fixing frame, a part of the plurality of second nozzle fixing frames is arranged on one side of the first nozzle fixing frame, and the part of the second nozzle fixing frames are hinged in sequence, and the corresponding second nozzle fixing frames in the part of the second nozzle fixing frames are hinged to one side of the first nozzle fixing frame, another part of the plurality of second nozzle fixing frames is arranged on one side of the first nozzle fixing frame, and the another part of the second nozzle fixing frames are hinged in sequence, and the corresponding second nozzle fixing frames in the another part of the second nozzle fixing frames are hinged to the other side of the first nozzle fixing frame.

6. The silo wall spraying drone body assembly according to claim 5 is characterized in that: The silo wall spraying drone body assembly also includes a cleaning component, and the cleaning component includes: A cleaning liquid storage tank, wherein the cleaning liquid storage tank is filled with cleaning liquid; A cleaning pump, the cleaning pump is connected to the cleaning liquid storage tank, and the cleaning pump is also connected to the pipeline between the first one-way valve and the paint storage tank; A third one-way valve is provided on the pipeline between the paint storage tank and the cleaning pump.

7. The silo wall spraying drone body assembly according to claim 6 is characterized in that: The silo wall spraying drone body assembly also includes a controller, the controller is connected to the drone body by wireless signals, and the controller is connected to the mobile vehicle by wireless signals; The drone body is connected to the mobile vehicle by wireless signals.

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