WO2022222093A1 - Water tank assembly and unmanned aerial vehicle - Google Patents

Water tank assembly and unmanned aerial vehicle Download PDF

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Publication number
WO2022222093A1
WO2022222093A1 PCT/CN2021/088920 CN2021088920W WO2022222093A1 WO 2022222093 A1 WO2022222093 A1 WO 2022222093A1 CN 2021088920 W CN2021088920 W CN 2021088920W WO 2022222093 A1 WO2022222093 A1 WO 2022222093A1
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WO
WIPO (PCT)
Prior art keywords
water tank
tank assembly
valve
opening
float
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Application number
PCT/CN2021/088920
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French (fr)
Chinese (zh)
Inventor
舒展
王博
颜勋
Original Assignee
深圳市大疆创新科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to CN202180080912.2A priority Critical patent/CN116529162A/en
Priority to PCT/CN2021/088920 priority patent/WO2022222093A1/en
Publication of WO2022222093A1 publication Critical patent/WO2022222093A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
    • B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
    • B64D1/18—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting by spraying, e.g. insecticides

Definitions

  • the present application relates to the technical field of unmanned aerial vehicles, and in particular, to a water tank assembly and an unmanned aerial vehicle.
  • plug-in water tanks have basically become the standard configuration of plant protection drones.
  • the multi-tank solution has a problem of tank switching. If the water in one tank is pumped out first, because the pipeline is connected, the air will be pumped into the spray system from the outlet of the tank, affecting the spray effect.
  • Embodiments of the present application provide a water tank assembly and a drone.
  • the water tank assembly of the embodiments of the present application is used in a sprinkler system.
  • the water tank assembly includes at least one water tank.
  • Each of the tanks includes a tank and a mechanical valve.
  • the box body includes a mounting member.
  • a mechanical valve is mounted on the mount for opening or closing the opening of the case. When the remaining liquid in the tank is greater than a preset threshold, the mechanical valve opens the opening of the tank; when the remaining liquid in the tank is less than a preset threshold, the mechanical valve closes the tank body opening.
  • the mechanical valve is used to control the closing and opening of the opening to realize the on-off of the pipeline, and the liquid switching of at least one water tank can be realized, and the mechanical valve can be automatically opened and closed according to the liquid level in the tank, No additional control intervention is required, the structure is simple and the reliability is high.
  • the water tank assembly of the embodiments of the present application is used in a sprinkler system.
  • the water tank assembly includes at least two water tanks and a combiner.
  • Each of the tanks includes a tank and a mechanical valve.
  • the bottom of the box body is provided with a mounting piece.
  • the mechanical valve is mounted on the mount.
  • the mechanical valve includes a guide pipe, a valve seat and a float.
  • the guide pipe is provided with a water inlet.
  • the valve seat is installed at the bottom of the guide pipe, and the valve seat is provided with an opening.
  • the float is located in the guide pipe. When the buoyancy force of the liquid in the tank is smaller than the preset force of the float, the float closes the opening, and the float is exposed to the liquid in the tank. When the buoyancy is greater than the preset force of the float, the float opens the opening.
  • a confluence pipe connects the openings of the at least two water tanks.
  • the float of the mechanical valve is used to control the closing and opening of the opening, so as to realize the on-off of the pipeline, and the liquid switching of at least two water tanks can be realized.
  • Automatic switch no additional control intervention, simple structure and high reliability.
  • a drone includes a fuselage and a spray system.
  • a sprinkler system is installed on the fuselage.
  • the spray system includes the water tank assembly of the above embodiments.
  • the mechanical valve is used to control the closing and opening of the opening to realize the on-off of the pipeline, and the liquid switching of at least one water tank can be realized, and the mechanical valve can be automatically opened and closed according to the liquid level in the tank. , without additional control intervention, simple structure and high reliability.
  • FIG. 1 is a three-dimensional structural diagram of an unmanned aerial vehicle according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present application.
  • Fig. 3 is a sectional view along line II-II in Fig. 2;
  • Fig. 4 is the enlarged schematic diagram of the IV part of Fig. 3;
  • FIG. 5 is a perspective structural view of a mechanical valve of a water tank assembly according to an embodiment of the present application.
  • Fig. 6 is the enlarged schematic diagram of the VI part of Fig. 3;
  • FIG. 7 is an enlarged schematic view of part VII of FIG. 3 .
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection connected, or integrally connected. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two elements or the interaction relationship between the two elements.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection connected, or integrally connected. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two elements or the interaction relationship between the two elements.
  • the UAV 3000 includes a fuselage 2000 and a spraying system 1000 .
  • the spray system 1000 is installed on the fuselage 2000 .
  • the spray system 1000 includes a water tank assembly 100 and a water pump (not shown).
  • the UAV 3000 may be an automatic unmanned aerial vehicle that can be used for agricultural and forestry operations, and the UAV 3000 can perform liquid spraying operations such as pesticides and water on agricultural products and forest trees.
  • the water tank assembly 100 can contain liquids such as pesticides and water, and the water tank assembly 100 is used for the spraying system 1000 .
  • the water pump may draw liquid in the tank assembly 100 so that the liquid is pumped out of the tank assembly 100 .
  • the water tank assembly 100 will be described in detail below.
  • the tank assembly 100 includes at least one tank 10 and a mechanical valve 30 .
  • tank assembly 100 includes at least two tanks 10 , mechanical valve 30 , confluence pipe 50 , connecting pipe 70 and one-way valve 90 .
  • the number of water tanks 10 is 2, and in other embodiments, the water tanks 10 may be 1, 3, 4, or more than 4.
  • Each tank 10 includes a tank 12 .
  • the box body 12 is substantially a cuboid, and in other embodiments, the box body 12 may be a cylindrical shape, an elliptical column shape, a cone shape, or other regular or irregular shapes.
  • the box body 12 can accommodate liquids such as pesticides and water.
  • the box body 12 includes a mounting member 122 and a water injection port 124 .
  • the mounting member 122 is disposed at the opening 126 of the case body 12
  • the opening 126 may be disposed at the bottom of the case body 12
  • the liquid may flow out of the case body 12 through the opening 126 .
  • the water injection port 124 may be disposed on the top of the tank body 12 , and the liquid may be injected into the tank body 12 through the water injection port 124 .
  • the water injection port 124 can be sealed to prevent the liquid inside the box body 12 from leaking through the water injection port 124 during the operation of the UAV 3000 .
  • the mechanical valve 30 is mounted on the mounting member 122 for opening the opening 126 of the case 12 or closing the opening 126 of the case 12 .
  • a preset threshold eg 0.5L
  • the mechanical valve 30 opens the opening 126 of the tank 12; when the remaining liquid in the tank 12 is less than the preset threshold, the mechanical valve 30 closes The opening 126 of the case 12 .
  • the number of mechanical valves 30 is the same as the number of water tanks 10 , that is, one mechanical valve 30 corresponds to one water tank 10 , and each mechanical valve 30 can open or close the opening 126 of one corresponding water tank 10 .
  • the mechanical valve 30 is tightly connected with the mounting member 122 to prevent the liquid in the tank 12 from leaking out from the connection between the mechanical valve 30 and the mounting member 122 .
  • the mechanical valve 30 includes a float 32 , a guide pipe 34 , a filter screen 36 , a valve seat 38 , a mounting seat 31 , a bottom cover 33 , and an elastic member 35 .
  • the float 32 can open or close the opening 126 of the case 12 .
  • the buoyancy force on the float 32 is greater than the preset force of the float 32, and the float 32 floats up to open the opening 126; when the remaining liquid volume in the tank body 12 is less than the preset threshold value
  • the buoyancy force received by the float 32 is less than the preset force of the float 32
  • the float 32 sinks to close the opening 126 .
  • the predetermined force includes gravity.
  • the preset force includes gravity and downforce
  • the downforce can be the elastic force provided by an elastic member (such as a spring), that is, when the remaining liquid in the tank 12 is greater than a preset threshold , the buoyancy of the float 32 is greater than the gravity of the float 32 and the downward pressure of the float 32, the float 32 floats up to open the opening 126; when the remaining liquid in the tank 12 is less than the preset threshold, the buoyancy of the float 32 is smaller than that of the float 32 The gravitational force and the downward force on the float 32 sinks the float 32 to close the opening 126 .
  • an elastic member such as a spring
  • the float 32 has a preset shape to control the amount of liquid remaining in the tank 12 .
  • Preset shapes may include spheres, cones, cylinders, prisms, or other regular or irregular shapes.
  • the float 32 is spherical. The shape and weight of float 32 can determine the amount of liquid remaining in tank 12 when opening 126 is closed.
  • the float 32 is made of a corrosion-resistant plastic material or other material.
  • the guide pipe 34 communicates with the opening 126 of the box body 12 for guiding the float 32 to move up and down along the guide pipe 34 , so as to open or close the opening 126 of the box body 12 more accurately.
  • the guide pipe 34 is located inside the casing 12 , the top of the guide pipe 34 and the peripheral wall 344 are provided with a water inlet 346 , and the liquid in the casing 12 enters the guide pipe 34 through the top of the guide pipe 34 and the water inlet 346 of the peripheral wall 344
  • the duct 34 thus flows out of the opening 126 of the case 12 along the guide duct 34 when the float 32 opens the opening 126 .
  • the filter screen 36 is used to filter impurities in the liquid.
  • the filter screen 36 may be arranged inside the guide duct 34 or outside the guide duct 34 .
  • the filter screen 36 is arranged outside the guide pipe 34 , that is, the guide pipe 34 is located in the filter screen 36 , so that impurities in the liquid are filtered outside the guide pipe 34 by the filter screen 36 .
  • the valve seat 38 is installed at the bottom of the guide pipe 34 , and the valve seat 38 is provided with an opening 126 .
  • the float 32 When the remaining liquid in the water tank 10 is less than the preset threshold, the float 32 is pressed against the valve seat 38 by the preset force, the mechanical valve 30 is closed, and the opening 126 is closed to prevent the air in the water tank 10 from entering the system;
  • the float 32 floats up and disengages from the valve seat 38, the mechanical valve 30 opens, and the opening 126 is opened; when the remaining liquid volume in the water tank 10 gradually decreases from greater than the preset threshold to less than When the threshold is preset, the float 32 gradually falls back to the valve seat 38 from the floating state, closing the opening 126 in time.
  • the mounting seat 31 is mounted on the mounting member 122 of the tank body 12 for mounting the mechanical valve 30 on the water tank 10 .
  • the valve seat 38 is connected to the mounting seat 31 and the guide channel
  • the guide pipe 34 is connected to the mounting seat 31 through the valve seat 38 , and is further mounted on the mounting member 122 of the box body 12 through the mounting seat 31 .
  • the mounting seat 31 is provided with a channel communicating with the confluence pipe 50 and the opening 126 .
  • the bottom cover 33 is detachably connected to the mounting base 31 .
  • the bottom cover 33 and the mounting seat 31 are detachably connected by threads, and in other embodiments, the bottom cover 33 and the mounting seat 31 can be detachably connected by snaps or other means. It can be understood that after the bottom cover 33 is removed from the mounting seat 31, the float 32, the guide pipe 34 and the filter screen 36 can be taken out from the inside of the box body 12, so as to facilitate the cleaning of the float 32, the guide pipe 34 and the filter screen 36 or replace.
  • the elastic piece 35 is located in the guide pipe 34 , and the elastic piece 35 abuts the float 32 and the top of the guide pipe 34 .
  • the opening 126 is closed, and the elastic member 35 can increase the downward pressure of the float 32, improve the stability of the float 32, and prevent the float 32 from deviating when it is vibrated, thereby causing the mechanical valve 30 to function. failure, affecting the performance of the work.
  • the elastic member 35 includes a spring.
  • the confluence pipe 50 connects at least two water tanks 10 .
  • the confluence pipe 50 is connected to a water pump (not shown) and at least two openings 126 of the water tank 10 .
  • the liquid in the at least two water tanks 10 reaches the confluence pipe 50 through the mechanical valve 30 , passes through the confluence pipe 50 and then flows to the water pump, and finally is sprayed out through the nozzle.
  • the junction tube 50 is located above the opening 126 . In this way, the confluence pipe 50 is safer and less likely to collide, and the liquids in the at least two water tanks 10 flow upwards, merge above the opening 126 , and then flow downwards to be ejected by the nozzle. In other embodiments, the confluence tube 50 may also be located below the opening 126 .
  • the confluence pipe 50 includes a main pipe 52 and at least two branch pipes 54 .
  • the main pipe 52 is connected with a water pump, and under the action of the water pump, the liquids in at least two water tanks 10 can flow out from the main pipe 52 .
  • Each branch pipe 54 is connected to the main pipe 52 and the opening 126 of a corresponding one of the water tanks. Under the action of the water pump, the liquid in each water tank 10 flows out from the opening 126, converges to the same main pipe 52 through the branch pipe 54, and then leads from the main pipe 52 to the same main pipe 52. The water pump is finally sprayed through the nozzle.
  • the number of branch pipes 54 is the same as the number of water tanks 10 , that is, one branch pipe 54 corresponds to one water tank 10 .
  • the branch pipe 54 includes an insertion port 542 and a convex portion 544 .
  • the insertion port 542 is provided at one end of the branch pipe 54 .
  • the protruding portion 544 is disposed in the socket 542 .
  • the socket 542 is in the shape of a bell mouth
  • the convex portion 544 is arranged in the center of the socket 542
  • the convex portion 544 is in the shape of a column.
  • One end of the connecting pipe 70 is connected to the mechanical valve 30 . After the liquid in the tank 12 flows out through the mechanical valve 30 , it enters the connecting pipe 70 and flows in the connecting pipe 70 .
  • the number of connecting pipes 70 is the same as the number of water tanks 10 , that is, one connecting pipe 70 corresponds to one water tank 10 .
  • the one-way valve 90 is installed on the other end of the connecting pipe 70 , that is, the one-way valve 90 is connected to the plug port 542 of the connecting pipe 70 and the branch pipe 54 , so that the liquid in the connecting pipe 70 can flow to the The branch pipe 54 of the confluence pipe 50 .
  • the one-way valve 90 can only flow out and cannot flow in, that is, the liquid in the connecting pipe 70 can flow to the branch pipe 54 of the confluence pipe 50 through the one-way valve 90, but the liquid in the branch pipe 54 of the confluence pipe 50 cannot pass through the one-way valve 90. Flow toward the valve 90 to the connecting pipe 70 .
  • the one-way valve 90 is located above the opening 126, and when the one-way valve 90 is located above the opening 126, the one-way valve 90 is less prone to bumping than the one-way valve 90 is located below the opening 126, It is not easy to enter mud or sand, and it is easier to align when installing, and the positioning accuracy is higher.
  • a plug port 542 is connected to a one-way valve 90, which has a simpler structure and higher reliability.
  • the number of one-way valves 90 is the same as the number of water tanks 10 , that is, one one-way valve 90 corresponds to one water tank 10 .
  • the one-way valve 90 includes a valve core 92 , an outer peripheral wall 94 , a sealing ring 96 and a receiving groove 98 .
  • the valve core 92 is movably provided on the one-way valve 90 for controlling the opening and closing of the one-way valve 90 .
  • the convex part 544 abuts against the valve core 92 to open the one-way valve 90; when the one-way valve 90 is removed from the socket 542, the convex part 544 is separated from the valve core 92, and the valve core 92 closes the one-way valve 90 .
  • the spool 92 is provided at the center of the check valve 90 , the spool 92 is cylindrical, and the central axis of the spool 92 and the central axis of the convex portion 544 are coincident with the straight line A.
  • the valve core 92 is covered with an elastic member (such as a spring), so that when the one-way valve 90 is connected to the socket 542, the convex portion 544 abuts against the valve core 92, the elastic member is compressed from the initial position, and the single The valve 90 is opened; when the convex portion 544 is separated from the valve core 92, the elastic member returns to the original position so that the one-way valve 90 is automatically closed.
  • an elastic member such as a spring
  • the outer peripheral wall 94 of the one-way valve 90 is provided with a sealing ring 96 .
  • the sealing ring 96 sealingly connects the outer peripheral wall 94 of the one-way valve 90 and the inner side wall 5424 of the socket 542 . In this way, the liquid flowing through the one-way valve 90 will not seep out from the connection between the one-way valve 90 and the plug port 542 , and the outside air will not enter the one-way valve 90 from the connection between the one-way valve 90 and the plug port 542 . , to ensure the normal operation of the sprinkler system 1000.
  • the outer peripheral wall 94 of the one-way valve 90 is provided with an accommodating groove 98 , and the sealing ring 96 is partially accommodated in the accommodating groove 98 . In this way, the installation of the one-way valve 90 and the plug port 542 is facilitated.
  • the mechanical valve 30 is used to control the closing and opening of the opening 126 to realize the on-off of the pipeline, and the liquid switching of at least one water tank 10 can be realized, and, The mechanical valve 30 can be automatically opened and closed according to the liquid level in the tank body 12, without additional control intervention, and has a simple structure and high reliability.
  • the mechanical valve 30 and the one-way valve 90 cooperate with each other. When the water in a water tank 10 is exhausted first, the mechanical valve 30 closes the water tank 10. The opening 126, the air in the water tank 10 cannot be drawn into the spraying system 1000 from the opening 126 of the water tank 10, so as to prevent the air from mixing into the spraying system 1000 and affecting the spraying effect.
  • a first feature "on” or “under” a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature being “below”, “below” and “below” the second feature includes that the first feature is directly below and diagonally below the second feature, or simply means that the first feature is level less than the second feature.

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  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Float Valves (AREA)

Abstract

A water tank assembly (100) and an unmanned aerial vehicle (3000). The water tank assembly (100) is used for a spraying system (1000). The water tank assembly (100) comprises at least one water tank (10). Each water tank (10) comprises a tank body (12) and a mechanical valve (30). The tank bodies (12) comprise mounting members (122). The mechanical valves (30) are mounted on the mounting members (122) and are used to open openings (126) of the tank bodies (12) or close the openings (126) of the tank bodies (12). When the remaining amount of liquid in the tank bodies (12) is greater than a preset threshold, the mechanical valves (30) open the openings (126) of the tank bodies (12). When the remaining amount of liquid in the tank bodies (12) is less than the preset threshold, the mechanical valves (30) close the openings (126) of the tank bodies (12).

Description

水箱组件及无人机Water tank components and drones 技术领域technical field
本申请涉及无人机技术领域，特别涉及一种水箱组件及无人机。The present application relates to the technical field of unmanned aerial vehicles, and in particular, to a water tank assembly and an unmanned aerial vehicle.
背景技术Background technique
随着植保无人机的逐渐推广，大容量水箱成为植保无人机发展的主流趋势。为了提高换药效率，插拔式水箱基本上成为植保无人机的标配。然而，随着水箱容积不断增大，重量也不断增大，插拔式水箱的提拎已经变得非常困难，对于体型偏瘦的人来说，这一问题显得更加严重。因此，多水箱组合式方案得到应用。多水箱方案存在一个水箱切换的问题，如果一个水箱中的水先被抽完，由于管路是联通的，空气将从该水箱的出口被抽进喷洒***中，影响喷洒效果。With the gradual promotion of plant protection drones, large-capacity water tanks have become the mainstream trend in the development of plant protection drones. In order to improve the efficiency of dressing change, plug-in water tanks have basically become the standard configuration of plant protection drones. However, with the increasing volume and weight of the water tank, it has become very difficult to carry the plug-in water tank, and this problem is even more serious for people who are thinner. Therefore, the multi-tank combined scheme is applied. The multi-tank solution has a problem of tank switching. If the water in one tank is pumped out first, because the pipeline is connected, the air will be pumped into the spray system from the outlet of the tank, affecting the spray effect.
发明内容SUMMARY OF THE INVENTION
本申请的实施方式提供一种水箱组件及无人机。Embodiments of the present application provide a water tank assembly and a drone.
本申请实施方式的水箱组件用于喷洒***。所述水箱组件包括至少一个水箱。每个所述水箱包括箱体和机械阀。所述箱体包括安装件。机械阀安装在所述安装件，用于打开所述箱体的开口或关闭所述箱体的开口。当所述箱体内的剩余液量大于预设阈值时，所述机械阀打开所述箱体的开口；当所述箱体内的剩余液量小于预设阈值时，所述机械阀关闭所述箱体的开口。The water tank assembly of the embodiments of the present application is used in a sprinkler system. The water tank assembly includes at least one water tank. Each of the tanks includes a tank and a mechanical valve. The box body includes a mounting member. A mechanical valve is mounted on the mount for opening or closing the opening of the case. When the remaining liquid in the tank is greater than a preset threshold, the mechanical valve opens the opening of the tank; when the remaining liquid in the tank is less than a preset threshold, the mechanical valve closes the tank body opening.
上述实施方式的水箱组件中，利用机械阀来控制开口的关闭和打开，以实现管路的通断，可实现至少一个水箱的液体切换，而且，机械阀可以根据箱体内的液面自动开关，无需额外的控制介入，结构简单而且可靠性高。In the water tank assembly of the above embodiment, the mechanical valve is used to control the closing and opening of the opening to realize the on-off of the pipeline, and the liquid switching of at least one water tank can be realized, and the mechanical valve can be automatically opened and closed according to the liquid level in the tank, No additional control intervention is required, the structure is simple and the reliability is high.
本申请实施方式的水箱组件用于喷洒***。所述水箱组件包括至少两个水箱和合流管。每个所述水箱包括箱体和机械阀。所述箱体的底部开设有安装件。机械阀安装在在所述安装件。所述机械阀包括导向管道、阀座和浮子。导向管道开设有进水口。阀座安装在所述导向管道的底部，所述阀座开设有开口。浮子位于所述导向管道内，在所述浮子受到所述箱体内的液体浮力小于所述浮子的预设作用力时，所述浮子关闭所述开口，在所述浮子受到所述箱体内的液体浮力大于所述浮子的预设作用力时，所述浮子打开所述开口。合流管连接所述至少两个水箱的开口。The water tank assembly of the embodiments of the present application is used in a sprinkler system. The water tank assembly includes at least two water tanks and a combiner. Each of the tanks includes a tank and a mechanical valve. The bottom of the box body is provided with a mounting piece. The mechanical valve is mounted on the mount. The mechanical valve includes a guide pipe, a valve seat and a float. The guide pipe is provided with a water inlet. The valve seat is installed at the bottom of the guide pipe, and the valve seat is provided with an opening. The float is located in the guide pipe. When the buoyancy force of the liquid in the tank is smaller than the preset force of the float, the float closes the opening, and the float is exposed to the liquid in the tank. When the buoyancy is greater than the preset force of the float, the float opens the opening. A confluence pipe connects the openings of the at least two water tanks.
上述实施方式的水箱组件中，利用机械阀的浮子来控制开口的关闭和打开，以实现管路的通断，可实现至少两个水箱的液体切换，而且，机械阀可以根据箱体内的液面自动开关， 无需额外的控制介入，结构简单而且可靠性高。In the water tank assembly of the above embodiment, the float of the mechanical valve is used to control the closing and opening of the opening, so as to realize the on-off of the pipeline, and the liquid switching of at least two water tanks can be realized. Automatic switch, no additional control intervention, simple structure and high reliability.
本申请实施方式的一种无人机包括机身和喷洒***。喷洒***安装在所述机身。所述喷洒***包括上述实施方式所述的水箱组件。A drone according to an embodiment of the present application includes a fuselage and a spray system. A sprinkler system is installed on the fuselage. The spray system includes the water tank assembly of the above embodiments.
上述实施方式的无人机中，利用机械阀来控制开口的关闭和打开，以实现管路的通断，可实现至少一个水箱的液体切换，而且，机械阀可以根据箱体内的液面自动开关，无需额外的控制介入，结构简单而且可靠性高。In the unmanned aerial vehicle of the above-mentioned embodiment, the mechanical valve is used to control the closing and opening of the opening to realize the on-off of the pipeline, and the liquid switching of at least one water tank can be realized, and the mechanical valve can be automatically opened and closed according to the liquid level in the tank. , without additional control intervention, simple structure and high reliability.
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。Additional aspects and advantages of the present application will be set forth, in part, from the following description, and in part will become apparent from the following description, or may be learned by practice of the present application.
附图说明Description of drawings
本申请的上述和/或附加的方面和优点可以从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:
图1是本申请实施方式的无人机的立体结构图；1 is a three-dimensional structural diagram of an unmanned aerial vehicle according to an embodiment of the present application;
图2是本申请实施方式的无人机的结构示意图；2 is a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present application;
图3是图2中沿线Ⅱ-Ⅱ的剖视图；Fig. 3 is a sectional view along line II-II in Fig. 2;
图4是图3的Ⅳ部分的放大示意图；Fig. 4 is the enlarged schematic diagram of the IV part of Fig. 3;
图5是本申请实施方式的水箱组件的机械阀的立体结构图；5 is a perspective structural view of a mechanical valve of a water tank assembly according to an embodiment of the present application;
图6是图3的Ⅵ部分的放大示意；Fig. 6 is the enlarged schematic diagram of the VI part of Fig. 3;
图7是图3的Ⅶ部分的放大示意图。FIG. 7 is an enlarged schematic view of part VII of FIG. 3 .
主要元件符号说明：Description of main component symbols:
无人机3000、机身2000、喷洒***1000、水箱组件100、水箱10、箱体12、安装件122、注水口124、开口126、机械阀30、浮子32、导向管道34、周壁344、进水口346、滤网36、阀座38、安装座31、底盖33、弹性件35、合流管50、总管52、支管54、插接口542、内侧壁5424、凸部544、连接管道70、单向阀90、阀芯92、外周壁94、密封圈96、收容槽98。UAV 3000, fuselage 2000, spray system 1000, water tank assembly 100, water tank 10, tank 12, mounting piece 122, water injection port 124, opening 126, mechanical valve 30, float 32, guide pipe 34, peripheral wall 344, inlet Water outlet 346, filter screen 36, valve seat 38, mounting seat 31, bottom cover 33, elastic member 35, confluence pipe 50, main pipe 52, branch pipe 54, insertion port 542, inner side wall 5424, convex part 544, connecting pipe 70, single The valve 90 , the valve core 92 , the outer peripheral wall 94 , the sealing ring 96 , and the accommodating groove 98 .
具体实施方式Detailed ways
下面详细描述本申请的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present application, and should not be construed as a limitation on the present application.
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺 时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc., or The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as a limitation on this application. In the description of the present application, "plurality" means two or more, unless otherwise expressly and specifically defined.
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接。可以是机械连接，也可以是电连接。可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection connected, or integrally connected. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.
请参阅图1和图2，本申请实施方式的无人机3000包括机身2000和喷洒***1000。喷洒***1000安装在机身2000。喷洒***1000包括水箱组件100和水泵(图未示)。具体地，无人机3000可以是一种可用于农林作业的自动无人飞行器，无人机3000可对农产品、林木等进行农药、水等液体喷洒作业活动。水箱组件100能够容纳农药、水等液体，水箱组件100用于喷洒***1000。水泵可以抽取水箱组件100中的液体，以使得液体泵出水箱组件100。Referring to FIG. 1 and FIG. 2 , the UAV 3000 according to the embodiment of the present application includes a fuselage 2000 and a spraying system 1000 . The spray system 1000 is installed on the fuselage 2000 . The spray system 1000 includes a water tank assembly 100 and a water pump (not shown). Specifically, the UAV 3000 may be an automatic unmanned aerial vehicle that can be used for agricultural and forestry operations, and the UAV 3000 can perform liquid spraying operations such as pesticides and water on agricultural products and forest trees. The water tank assembly 100 can contain liquids such as pesticides and water, and the water tank assembly 100 is used for the spraying system 1000 . The water pump may draw liquid in the tank assembly 100 so that the liquid is pumped out of the tank assembly 100 .
下面将对水箱组件100进行详细描述。The water tank assembly 100 will be described in detail below.
水箱组件100包括至少一个水箱10和机械阀30。在某些实施方式中，水箱组件100包括至少两个水箱10、机械阀30、合流管50、连接管道70和单向阀90。具体地，在图2的实施方式中，水箱10的数量为2个，在其它实施方式中，水箱10可为1个、3个、4个或者大于4个等。The tank assembly 100 includes at least one tank 10 and a mechanical valve 30 . In certain embodiments, tank assembly 100 includes at least two tanks 10 , mechanical valve 30 , confluence pipe 50 , connecting pipe 70 and one-way valve 90 . Specifically, in the embodiment of FIG. 2 , the number of water tanks 10 is 2, and in other embodiments, the water tanks 10 may be 1, 3, 4, or more than 4.
每个水箱10包括箱体12。具体地，在图2的实施方式中，箱体12基本呈长方体型，在其它实施方式中，箱体12可呈圆柱型、椭圆柱型、锥型或者其他规则或不规则形状。箱体12可容纳农药、水等液体。Each tank 10 includes a tank 12 . Specifically, in the embodiment of FIG. 2 , the box body 12 is substantially a cuboid, and in other embodiments, the box body 12 may be a cylindrical shape, an elliptical column shape, a cone shape, or other regular or irregular shapes. The box body 12 can accommodate liquids such as pesticides and water.
箱体12包括安装件122和注水口124。安装件122设置在箱体12的开口126处，开口126可设置在箱体12的底部，液体可通过开口126流出箱体12。注水口124可设置在箱体12的顶部，液体可通过注水口124注入箱体12内部。注水口124能够密封，以防止在无人机3000作业过程中箱体12内部的液体通过注水口124漏出。The box body 12 includes a mounting member 122 and a water injection port 124 . The mounting member 122 is disposed at the opening 126 of the case body 12 , the opening 126 may be disposed at the bottom of the case body 12 , and the liquid may flow out of the case body 12 through the opening 126 . The water injection port 124 may be disposed on the top of the tank body 12 , and the liquid may be injected into the tank body 12 through the water injection port 124 . The water injection port 124 can be sealed to prevent the liquid inside the box body 12 from leaking through the water injection port 124 during the operation of the UAV 3000 .
请参阅图3和图4，机械阀30安装在安装件122，用于打开箱体12的开口126或关闭箱体12的开口126。当箱体12内的剩余液量大于预设阈值(例如0.5L)时，机械阀30打开箱体12的开口126；当箱体12内的剩余液量小于预设阈值时，机械阀30关闭箱体12的开口126。机械阀30的数量与水箱10的数量相同，即一个机械阀30对应一个水箱10，每个机械阀30能够打开或关闭与其对应的一个水箱10的开口126。机械阀30与安装件122 紧密连接以防止箱体12内的液体从机械阀30与安装件122的连接处漏出。机械阀30包括浮子32、导向管道34、滤网36、阀座38、安装座31、底盖33、弹性件35。Referring to FIGS. 3 and 4 , the mechanical valve 30 is mounted on the mounting member 122 for opening the opening 126 of the case 12 or closing the opening 126 of the case 12 . When the remaining liquid in the tank 12 is greater than a preset threshold (eg 0.5L), the mechanical valve 30 opens the opening 126 of the tank 12; when the remaining liquid in the tank 12 is less than the preset threshold, the mechanical valve 30 closes The opening 126 of the case 12 . The number of mechanical valves 30 is the same as the number of water tanks 10 , that is, one mechanical valve 30 corresponds to one water tank 10 , and each mechanical valve 30 can open or close the opening 126 of one corresponding water tank 10 . The mechanical valve 30 is tightly connected with the mounting member 122 to prevent the liquid in the tank 12 from leaking out from the connection between the mechanical valve 30 and the mounting member 122 . The mechanical valve 30 includes a float 32 , a guide pipe 34 , a filter screen 36 , a valve seat 38 , a mounting seat 31 , a bottom cover 33 , and an elastic member 35 .
浮子32能够打开或关闭箱体12的开口126。当箱体12内的剩余液量大于预设阈值时，浮子32受到的浮力大于浮子32的预设作用力，浮子32上浮以打开开口126；当箱体12内的剩余液量小于预设阈值时，浮子32受到的浮力小于浮子32的预设作用力，浮子32下沉以关闭开口126。在某些实施方式中，预设作用力包括重力。在某些实施方式中，预设作用力包括重力及下压力，下压力可为弹性件(例如弹簧)提供的弹力，也即是说，当箱体12内的剩余液量大于预设阈值时，浮子32受到的浮力大于浮子32的重力及浮子32受到的下压力，浮子32上浮以打开开口126；当箱体12内的剩余液量小于预设阈值时，浮子32受到的浮力小于浮子32的重力及浮子32受到的下压力，浮子32下沉以关闭开口126。The float 32 can open or close the opening 126 of the case 12 . When the remaining liquid volume in the tank body 12 is greater than the preset threshold, the buoyancy force on the float 32 is greater than the preset force of the float 32, and the float 32 floats up to open the opening 126; when the remaining liquid volume in the tank body 12 is less than the preset threshold value When the buoyancy force received by the float 32 is less than the preset force of the float 32 , the float 32 sinks to close the opening 126 . In some embodiments, the predetermined force includes gravity. In some embodiments, the preset force includes gravity and downforce, and the downforce can be the elastic force provided by an elastic member (such as a spring), that is, when the remaining liquid in the tank 12 is greater than a preset threshold , the buoyancy of the float 32 is greater than the gravity of the float 32 and the downward pressure of the float 32, the float 32 floats up to open the opening 126; when the remaining liquid in the tank 12 is less than the preset threshold, the buoyancy of the float 32 is smaller than that of the float 32 The gravitational force and the downward force on the float 32 sinks the float 32 to close the opening 126 .
在某些实施方式中，浮子32呈预设形状以控制箱体12内的剩余液量。预设形状可包括球形、锥型、柱形、棱柱形或者其他规则或不规则形状。在图4所示的实施方式中，浮子32呈球形。浮子32的形状和重量可决定关闭开口126时箱体12内的剩余液量。可以理解，在浮子32的密度相同时，若浮子32的上半部分的体积大于浮子32的下半部分的体积(例如顶点朝下的圆锥)，当液面发生变化时，浮子32受到的浮力的变化较大，开口126较快地被关闭，从而箱体12内的剩余液量较多；若浮子32的上半部分的体积小于浮子32的下半部分的体积(例如顶点朝上的圆锥)，当液面发生变化时，浮子32受到的浮力的变化较小，开口126较慢地被关闭，从而箱体12内的剩余液量较少。在某些实施方式中，浮子32由耐腐蚀的塑胶材料或其它材料制成。In some embodiments, the float 32 has a preset shape to control the amount of liquid remaining in the tank 12 . Preset shapes may include spheres, cones, cylinders, prisms, or other regular or irregular shapes. In the embodiment shown in Figure 4, the float 32 is spherical. The shape and weight of float 32 can determine the amount of liquid remaining in tank 12 when opening 126 is closed. It can be understood that when the density of the float 32 is the same, if the volume of the upper half of the float 32 is greater than the volume of the lower half of the float 32 (for example, a cone with the apex facing down), when the liquid level changes, the buoyant force on the float 32 If the volume of the upper part of the float 32 is smaller than the volume of the lower part of the float 32 (for example, a cone with an upward apex) ), when the liquid level changes, the change in the buoyancy force received by the float 32 is small, and the opening 126 is closed more slowly, so that the remaining liquid in the tank 12 is less. In some embodiments, the float 32 is made of a corrosion-resistant plastic material or other material.
导向管道34与箱体12的开口126联通，用于引导浮子32沿导向管道34上下移动，从而较准确地打开或关闭箱体12的开口126。请结合图4，导向管道34位于箱体12的内部，导向管道34的顶部和周壁344开设有进水口346，箱体12内的液体通过导向管道34的顶部和周壁344的进水口346进入导向管道34，从而在浮子32打开开口126的情况下，沿着导向管道34从箱体12的开口126流出。The guide pipe 34 communicates with the opening 126 of the box body 12 for guiding the float 32 to move up and down along the guide pipe 34 , so as to open or close the opening 126 of the box body 12 more accurately. Referring to FIG. 4 , the guide pipe 34 is located inside the casing 12 , the top of the guide pipe 34 and the peripheral wall 344 are provided with a water inlet 346 , and the liquid in the casing 12 enters the guide pipe 34 through the top of the guide pipe 34 and the water inlet 346 of the peripheral wall 344 The duct 34 thus flows out of the opening 126 of the case 12 along the guide duct 34 when the float 32 opens the opening 126 .
滤网36用于过滤液体中的杂质。滤网36可设置在导向管道34的内部，也可设置在导向管道34的外部。在图4的示例中，滤网36设置在导向管道34的外部，即导向管道34位于滤网36内，从而液体中的杂质被滤网36过滤在导向管道34外部。The filter screen 36 is used to filter impurities in the liquid. The filter screen 36 may be arranged inside the guide duct 34 or outside the guide duct 34 . In the example of FIG. 4 , the filter screen 36 is arranged outside the guide pipe 34 , that is, the guide pipe 34 is located in the filter screen 36 , so that impurities in the liquid are filtered outside the guide pipe 34 by the filter screen 36 .
阀座38安装在导向管道34的底部，阀座38开设有开口126。当水箱10内的剩余液量小于预设阈值时，浮子32依靠预设作用力压紧在阀座38上，机械阀30关闭，将开口126关闭，防止水箱10中的空气进入***；当水箱10内的剩余液量大于预设阈值时，浮子32上浮并与阀座38脱开，机械阀30打开，将开口126打开；当水箱10中的剩余液量从大于预设阈值逐渐减少至小于预设阈值时，浮子32从浮起状态逐渐回落到阀座38上，及时将开 口126关闭。The valve seat 38 is installed at the bottom of the guide pipe 34 , and the valve seat 38 is provided with an opening 126 . When the remaining liquid in the water tank 10 is less than the preset threshold, the float 32 is pressed against the valve seat 38 by the preset force, the mechanical valve 30 is closed, and the opening 126 is closed to prevent the air in the water tank 10 from entering the system; When the remaining liquid volume in the tank 10 is greater than the preset threshold, the float 32 floats up and disengages from the valve seat 38, the mechanical valve 30 opens, and the opening 126 is opened; when the remaining liquid volume in the water tank 10 gradually decreases from greater than the preset threshold to less than When the threshold is preset, the float 32 gradually falls back to the valve seat 38 from the floating state, closing the opening 126 in time.
安装座31安装在箱体12的安装件122，用于将机械阀30安装在水箱10上。具体地，阀座38连接安装座31和导向通道，导向管道34通过阀座38连接安装座31，进而通过安装座31安装在箱体12的安装件122上。安装座31开设有连通合流管50和开口126的通道。The mounting seat 31 is mounted on the mounting member 122 of the tank body 12 for mounting the mechanical valve 30 on the water tank 10 . Specifically, the valve seat 38 is connected to the mounting seat 31 and the guide channel, and the guide pipe 34 is connected to the mounting seat 31 through the valve seat 38 , and is further mounted on the mounting member 122 of the box body 12 through the mounting seat 31 . The mounting seat 31 is provided with a channel communicating with the confluence pipe 50 and the opening 126 .
请参阅图4和图5，底盖33可拆卸地连接安装座31。在图4所示的实施方式中，底盖33与安装座31通过螺纹可拆卸地连接，在其它实施方式中，底盖33与安装座31可通过卡扣或者其它方式可拆卸地连接。可以理解，当底盖33从安装座31上拆卸下来之后，浮子32、导向管道34和滤网36可以从箱体12的内部取出，从而便于对浮子32、导向管道34和滤网36进行清洗或更换。Referring to FIGS. 4 and 5 , the bottom cover 33 is detachably connected to the mounting base 31 . In the embodiment shown in FIG. 4 , the bottom cover 33 and the mounting seat 31 are detachably connected by threads, and in other embodiments, the bottom cover 33 and the mounting seat 31 can be detachably connected by snaps or other means. It can be understood that after the bottom cover 33 is removed from the mounting seat 31, the float 32, the guide pipe 34 and the filter screen 36 can be taken out from the inside of the box body 12, so as to facilitate the cleaning of the float 32, the guide pipe 34 and the filter screen 36 or replace.
弹性件35位于导向管道34内，弹性件35抵接浮子32和导向管道34的顶部。在浮子32与阀座38处于密封状态时，开口126关闭，弹性件35可以增加浮子32的下压力，提高浮子32的稳定性，防止浮子32在受到振动时位置偏离，进而导致机械阀30功能失效，影响作业效果。在图4的示例中，弹性件35包括弹簧。The elastic piece 35 is located in the guide pipe 34 , and the elastic piece 35 abuts the float 32 and the top of the guide pipe 34 . When the float 32 and the valve seat 38 are in a sealed state, the opening 126 is closed, and the elastic member 35 can increase the downward pressure of the float 32, improve the stability of the float 32, and prevent the float 32 from deviating when it is vibrated, thereby causing the mechanical valve 30 to function. failure, affecting the performance of the work. In the example of FIG. 4 , the elastic member 35 includes a spring.
合流管50连接至少两个水箱10。合流管50连接一个水泵(图未示)和至少两个水箱10的开口126。至少两个水箱10内的液体经由机械阀30到达合流管50，经过合流管50合流之后通向水泵，最后通过喷头喷出。在某些实施方式中，合流管50位于开口126的上方。如此，合流管50更加安全，不易发生碰撞，至少两个水箱10的液体向向上流动，在开口126的上方合流，然后再向下流动，由喷头喷出。在其它实施方式中，合流管50也可位于开口126的下方。请结合图6，在图6所示的实施方式中，合流管50包括一个总管52和至少两个支管54。The confluence pipe 50 connects at least two water tanks 10 . The confluence pipe 50 is connected to a water pump (not shown) and at least two openings 126 of the water tank 10 . The liquid in the at least two water tanks 10 reaches the confluence pipe 50 through the mechanical valve 30 , passes through the confluence pipe 50 and then flows to the water pump, and finally is sprayed out through the nozzle. In certain embodiments, the junction tube 50 is located above the opening 126 . In this way, the confluence pipe 50 is safer and less likely to collide, and the liquids in the at least two water tanks 10 flow upwards, merge above the opening 126 , and then flow downwards to be ejected by the nozzle. In other embodiments, the confluence tube 50 may also be located below the opening 126 . Please refer to FIG. 6 , in the embodiment shown in FIG. 6 , the confluence pipe 50 includes a main pipe 52 and at least two branch pipes 54 .
总管52连接一个水泵，在水泵的作用下，至少两个水箱10的液体能够从总管52流出。The main pipe 52 is connected with a water pump, and under the action of the water pump, the liquids in at least two water tanks 10 can flow out from the main pipe 52 .
每个支管54连接总管52和对应的一个水箱的开口126，在水泵的作用下，每个水箱10内的液体从开口126流出，经由支管54汇聚至同一个总管52，然后从总管52通向水泵，最后通过喷头喷出。在某些实施方式中，支管54的数量与水箱10的数量相同，即一个支管54对应一个水箱10。支管54包括插接口542和凸部544。插接口542设于支管54的一端。凸部544设于插接口542内。在图7的示例中，插接口542呈喇叭口状，凸部544设置在插接口542的中心，凸部544呈柱状。Each branch pipe 54 is connected to the main pipe 52 and the opening 126 of a corresponding one of the water tanks. Under the action of the water pump, the liquid in each water tank 10 flows out from the opening 126, converges to the same main pipe 52 through the branch pipe 54, and then leads from the main pipe 52 to the same main pipe 52. The water pump is finally sprayed through the nozzle. In some embodiments, the number of branch pipes 54 is the same as the number of water tanks 10 , that is, one branch pipe 54 corresponds to one water tank 10 . The branch pipe 54 includes an insertion port 542 and a convex portion 544 . The insertion port 542 is provided at one end of the branch pipe 54 . The protruding portion 544 is disposed in the socket 542 . In the example of FIG. 7 , the socket 542 is in the shape of a bell mouth, the convex portion 544 is arranged in the center of the socket 542 , and the convex portion 544 is in the shape of a column.
连接管道70的一端连接机械阀30，箱体12内的液体经由机械阀30流出之后，进入连接管道70，并在连接管道70中流动。在某些实施方式中，连接管道70的数量与水箱10的数量相同，即一个连接管道70对应一个水箱10。One end of the connecting pipe 70 is connected to the mechanical valve 30 . After the liquid in the tank 12 flows out through the mechanical valve 30 , it enters the connecting pipe 70 and flows in the connecting pipe 70 . In some embodiments, the number of connecting pipes 70 is the same as the number of water tanks 10 , that is, one connecting pipe 70 corresponds to one water tank 10 .
请结合图7，单向阀90安装在连接管道70的另一端，即单向阀90连接连接管道70和支管54的插接口542，从而连接管道70中的液体可以经由单向阀90流动至合流管50的支 管54。可以理解，单向阀90只能流出不能流入，即连接管道70中的液体可以经由单向阀90流动至合流管50的支管54，但是，合流管50的支管54中的液体不可以经由单向阀90流动至连接管道70。在某些实施方式中，单向阀90位于开口126的上方，相比于单向阀90位于开口126的下方，当单向阀90位于开口126的上方时，单向阀90不容易磕碰，不容易进泥巴或沙子，在安装时更容易对准，定位精度更高。一个插接口542连接一个单向阀90，结构更加简单，可靠性高。在某些实施方式中，单向阀90的数量与水箱10的数量相同，即一个单向阀90对应一个水箱10。单向阀90包括阀芯92、外周壁94、密封圈96和收容槽98。Referring to FIG. 7 , the one-way valve 90 is installed on the other end of the connecting pipe 70 , that is, the one-way valve 90 is connected to the plug port 542 of the connecting pipe 70 and the branch pipe 54 , so that the liquid in the connecting pipe 70 can flow to the The branch pipe 54 of the confluence pipe 50 . It can be understood that the one-way valve 90 can only flow out and cannot flow in, that is, the liquid in the connecting pipe 70 can flow to the branch pipe 54 of the confluence pipe 50 through the one-way valve 90, but the liquid in the branch pipe 54 of the confluence pipe 50 cannot pass through the one-way valve 90. Flow toward the valve 90 to the connecting pipe 70 . In some embodiments, the one-way valve 90 is located above the opening 126, and when the one-way valve 90 is located above the opening 126, the one-way valve 90 is less prone to bumping than the one-way valve 90 is located below the opening 126, It is not easy to enter mud or sand, and it is easier to align when installing, and the positioning accuracy is higher. A plug port 542 is connected to a one-way valve 90, which has a simpler structure and higher reliability. In some embodiments, the number of one-way valves 90 is the same as the number of water tanks 10 , that is, one one-way valve 90 corresponds to one water tank 10 . The one-way valve 90 includes a valve core 92 , an outer peripheral wall 94 , a sealing ring 96 and a receiving groove 98 .
阀芯92可移动地设于单向阀90，用于控制单向阀90的打开和关闭。在单向阀90连接插接口542时，凸部544抵靠阀芯92以打开单向阀90，在单向阀90从插接口542取下时，凸部544与阀芯92分离，阀芯92关闭单向阀90。在图7的示例中，阀芯92设置在单向阀90的中心，阀芯92呈柱状，阀芯92的中心轴线与凸部544的中心轴线重合于直线A。在某些实施方式中，阀芯92外套设弹性件(如弹簧)，如此，在单向阀90连接插接口542时，凸部544抵靠阀芯92，弹性件从初始位置被压缩，单向阀90打开；当凸部544与阀芯92分离时，弹性件恢复至初始位置使得单向阀90自动关闭。The valve core 92 is movably provided on the one-way valve 90 for controlling the opening and closing of the one-way valve 90 . When the one-way valve 90 is connected to the socket 542, the convex part 544 abuts against the valve core 92 to open the one-way valve 90; when the one-way valve 90 is removed from the socket 542, the convex part 544 is separated from the valve core 92, and the valve core 92 closes the one-way valve 90 . In the example of FIG. 7 , the spool 92 is provided at the center of the check valve 90 , the spool 92 is cylindrical, and the central axis of the spool 92 and the central axis of the convex portion 544 are coincident with the straight line A. In some embodiments, the valve core 92 is covered with an elastic member (such as a spring), so that when the one-way valve 90 is connected to the socket 542, the convex portion 544 abuts against the valve core 92, the elastic member is compressed from the initial position, and the single The valve 90 is opened; when the convex portion 544 is separated from the valve core 92, the elastic member returns to the original position so that the one-way valve 90 is automatically closed.
单向阀90的外周壁94设有密封圈96。在单向阀90连接插接口542时，密封圈96密封连接单向阀90的外周壁94和插接口542的内侧壁5424。如此，流经单向阀90的液体不会从单向阀90与插接口542的连接处渗出，外界的空气也不会从单向阀90与插接口542的连接处进入单向阀90，保证了喷洒***1000正常工作。The outer peripheral wall 94 of the one-way valve 90 is provided with a sealing ring 96 . When the one-way valve 90 is connected to the socket 542 , the sealing ring 96 sealingly connects the outer peripheral wall 94 of the one-way valve 90 and the inner side wall 5424 of the socket 542 . In this way, the liquid flowing through the one-way valve 90 will not seep out from the connection between the one-way valve 90 and the plug port 542 , and the outside air will not enter the one-way valve 90 from the connection between the one-way valve 90 and the plug port 542 . , to ensure the normal operation of the sprinkler system 1000.
单向阀90的外周壁94设有收容槽98，密封圈96部分地容置在收容槽98中。如此，便于安装单向阀90和插接口542。The outer peripheral wall 94 of the one-way valve 90 is provided with an accommodating groove 98 , and the sealing ring 96 is partially accommodated in the accommodating groove 98 . In this way, the installation of the one-way valve 90 and the plug port 542 is facilitated.
综上，上述实施方式的无人机3000及水箱组件100中，利用机械阀30来控制开口126的关闭和打开，以实现管路的通断，可实现至少一个水箱10的液体切换，而且，机械阀30可以根据箱体12内的液面自动开关，无需额外的控制介入，结构简单而且可靠性高。此外，上述实施方式的无人机3000及水箱组件100中，采用机械阀30与单向阀90相互配合的方式，当一个水箱10中的水先被抽完时，机械阀30关闭该水箱10的开口126，该水箱10中的空气无法从该水箱10的开口126被抽进喷洒***1000中，从而避免了空气混入喷洒***1000影响喷洒效果。To sum up, in the UAV 3000 and the water tank assembly 100 of the above-mentioned embodiments, the mechanical valve 30 is used to control the closing and opening of the opening 126 to realize the on-off of the pipeline, and the liquid switching of at least one water tank 10 can be realized, and, The mechanical valve 30 can be automatically opened and closed according to the liquid level in the tank body 12, without additional control intervention, and has a simple structure and high reliability. In addition, in the unmanned aerial vehicle 3000 and the water tank assembly 100 of the above-mentioned embodiment, the mechanical valve 30 and the one-way valve 90 cooperate with each other. When the water in a water tank 10 is exhausted first, the mechanical valve 30 closes the water tank 10. The opening 126, the air in the water tank 10 cannot be drawn into the spraying system 1000 from the opening 126 of the water tank 10, so as to prevent the air from mixing into the spraying system 1000 and affecting the spraying effect.
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之 下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。In this application, unless otherwise expressly specified and defined, a first feature "on" or "under" a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature being "below", "below" and "below" the second feature includes that the first feature is directly below and diagonally below the second feature, or simply means that the first feature is level less than the second feature.
上文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，上文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。The above disclosure provides many different implementations or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and arrangements of specific examples are described above. Of course, they are only examples and are not intended to limit the application. Furthermore, this application may repeat reference numerals and/or reference letters in different instances for the purpose of simplicity and clarity, and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, this application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合实施方式或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc., is meant to incorporate the embodiments A particular feature, structure, material, or characteristic described or exemplified is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
尽管已经示出和描述了本申请的实施方式，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施方式进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。Although the embodiments of the present application have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, The scope of the application is defined by the claims and their equivalents.

Claims (35)

  1. 一种水箱组件，用于喷洒***，其特征在于，所述水箱组件包括：A water tank assembly for a spray system, characterized in that the water tank assembly comprises:
    至少一个水箱，每个所述水箱包括箱体，所述箱体包括安装件；at least one water tank, each of the water tanks including a tank body including a mount;
    机械阀，安装在所述安装件，用于打开所述箱体的开口或关闭所述箱体的开口；a mechanical valve, mounted on the mounting piece, for opening or closing the opening of the box;
    当所述箱体内的剩余液量大于预设阈值时，所述机械阀打开所述箱体的开口；当所述箱体内的剩余液量小于预设阈值时，所述机械阀关闭所述箱体的开口。When the remaining liquid in the tank is greater than a preset threshold, the mechanical valve opens the opening of the tank; when the remaining liquid in the tank is less than a preset threshold, the mechanical valve closes the tank body opening.
  2. 根据权利要求1所述的水箱组件，其特征在于，所述机械阀包括浮子，当所述箱体内的剩余液量大于预设阈值时，所述浮子打开所述开口；在所述箱体内的剩余液量小于预设阈值时，所述浮子关闭所述开口。The water tank assembly according to claim 1, wherein the mechanical valve includes a float, and when the remaining liquid in the tank is greater than a preset threshold, the float opens the opening; When the remaining liquid amount is less than a preset threshold, the float closes the opening.
  3. 根据权利要求1所述的水箱组件，其特征在于，所述机械阀包括：The water tank assembly of claim 1, wherein the mechanical valve comprises:
    导向管道，所述导向管道和所述箱体的所述开口连通；a guide pipe, the guide pipe communicates with the opening of the box;
    浮子，用于在所述导向管道内移动；a float for moving within the guide duct;
    当所述箱体内的剩余液量大于预设阈值时，所述浮子打开所述开口；在所述箱体内的剩余液量小于预设阈值时，所述浮子关闭所述开口。When the remaining liquid in the tank is greater than a preset threshold, the float opens the opening; when the remaining liquid in the tank is less than the preset threshold, the float closes the opening.
  4. 根据权利要求3所述的水箱组件，其特征在于，所述导向管道的顶部和周壁开设有进水口。The water tank assembly according to claim 3, wherein the top and the peripheral wall of the guide pipe are provided with a water inlet.
  5. 根据权利要求3所述的水箱组件，其特征在于，所述机械阀包括：The water tank assembly of claim 3, wherein the mechanical valve comprises:
    滤网，所述导向管道位于所述滤网内，或所述导向管道位于所述滤网外。A filter screen, the guide pipe is located inside the filter screen, or the guide pipe is located outside the filter screen.
  6. 根据权利要求3所述的水箱组件，其特征在于，所述机械阀包括：The water tank assembly of claim 3, wherein the mechanical valve comprises:
    阀座，安装在所述导向管道的底部，所述阀座开设有所述开口；a valve seat, installed at the bottom of the guide pipe, the valve seat is provided with the opening;
    安装座，安装在所述安装件，所述阀座连接所述安装座，所述安装座开设有连通合流管和所述开口的通道；a mounting seat, mounted on the mounting piece, the valve seat is connected to the mounting seat, and the mounting seat is provided with a channel communicating with the confluence pipe and the opening;
    底盖，可拆卸地连接所述安装座。The bottom cover is detachably connected to the mounting seat.
  7. 根据权利要求3所述的水箱组件，其特征在于，所述机械阀包括：The water tank assembly of claim 3, wherein the mechanical valve comprises:
    弹性件，位于所述导向管道内，所述弹性件抵接所述浮子和所述导向管道的顶部。An elastic piece is located in the guide pipe, the elastic piece abuts the float and the top of the guide pipe.
  8. 根据权利要求2或3所述的水箱组件，其特征在于，所述浮子呈预设形状以控制所述箱体内的剩余液量。The water tank assembly according to claim 2 or 3, wherein the float is in a preset shape to control the amount of remaining liquid in the tank.
  9. 根据权利要求2或3所述的水箱组件，其特征在于，所述浮子呈球形。The water tank assembly of claim 2 or 3, wherein the float is spherical.
  10. 根据权利要求1所述的水箱组件，其特征在于，所述水箱组件包括至少两个水箱，且所述水箱组件还包括合流管，所述合流管连接所述至少两个水箱。The water tank assembly of claim 1, wherein the water tank assembly comprises at least two water tanks, and the water tank assembly further comprises a confluence pipe connecting the at least two water tanks.
  11. 根据权利要求10所述的水箱组件，其特征在于，所述合流管位于所述开口的上方。11. The water tank assembly of claim 10, wherein the confluence pipe is located above the opening.
  12. 根据权利要求10所述的水箱组件，其特征在于，所述合流管包括：The water tank assembly of claim 10, wherein the confluence pipe comprises:
    一个总管；a supervisor;
    至少两个支管，每个所述支管连接所述总管和所述开口。At least two branch pipes, each of the branch pipes connecting the header pipe and the opening.
  13. 根据权利要求12所述的水箱组件，其特征在于，所述支管开设有插接口，The water tank assembly according to claim 12, wherein the branch pipe is provided with an insertion port,
    所述水箱组件包括连接管道，所述连接管道的一端连接所述机械阀，另一端安装有单向阀，所述连接管道通过所述单向阀连接所述插接口。The water tank assembly includes a connecting pipe, one end of the connecting pipe is connected to the mechanical valve, the other end is installed with a one-way valve, and the connecting pipe is connected to the plug port through the one-way valve.
  14. 根据权利要求13所述的水箱组件，其特征在于，所述插接口内设有凸部，所述单向阀包括阀芯，在所述单向阀连接所述插接口时，所述凸部抵靠所述阀芯以打开所述单向阀，在所述单向阀从所述插接口取下时，所述凸部与所述阀芯分离，所述阀芯关闭所述单向阀。The water tank assembly according to claim 13, wherein a convex portion is provided in the socket, the one-way valve comprises a valve core, and when the one-way valve is connected to the socket, the convex portion against the valve core to open the one-way valve, when the one-way valve is removed from the socket, the protrusion is separated from the valve core, and the valve core closes the one-way valve .
  15. 根据权利要求13所述的水箱组件，其特征在于，所述单向阀位于所述开口的上方。14. The water tank assembly of claim 13, wherein the one-way valve is located above the opening.
  16. 根据权利要求13所述的水箱组件，其特征在于，所述插接口呈喇叭口状。The water tank assembly according to claim 13, wherein the socket is in the shape of a bell mouth.
  17. 根据权利要求13所述的水箱组件，其特征在于，所述单向阀的外周壁设有密封圈，在所述单向阀连接所述插接口时，所述密封圈密封连接所述单向阀的外周壁和所述插接口的内侧壁。The water tank assembly according to claim 13, wherein the outer peripheral wall of the one-way valve is provided with a sealing ring, and when the one-way valve is connected to the plug port, the sealing ring is sealingly connected to the one-way valve. The outer peripheral wall of the valve and the inner side wall of the socket.
  18. 根据权利要求17所述的水箱组件，其特征在于，所述单向阀的外周壁设有收容槽， 所述密封圈部分地容置在所述收容槽中。The water tank assembly according to claim 17, wherein an outer peripheral wall of the one-way valve is provided with a receiving groove, and the sealing ring is partially received in the receiving groove.
  19. 一种水箱组件，用于喷洒***，其特征在于，所述水箱组件包括：A water tank assembly for a spray system, characterized in that the water tank assembly comprises:
    至少两个水箱，每个所述水箱包括箱体，所述箱体的底部开设有安装件；at least two water tanks, each of the water tanks includes a box body, and a mounting member is provided at the bottom of the box body;
    机械阀，安装在所述安装件，所述机械阀包括：a mechanical valve, mounted on the mount, the mechanical valve comprising:
    导向管道，开设有进水口，The guide pipe is provided with a water inlet,
    阀座，安装在所述导向管道的底部，所述阀座开设有开口，The valve seat is installed at the bottom of the guide pipe, and the valve seat is provided with an opening,
    浮子，位于所述导向管道内，在所述浮子受到所述箱体内的液体浮力小于所述浮子的预设作用力时，所述浮子关闭所述开口，在所述浮子受到所述箱体内的液体浮力大于所述浮子的预设作用力时，所述浮子打开所述开口；The float is located in the guide pipe, and when the buoyancy of the liquid in the box is smaller than the preset force of the float, the float closes the opening, and the float is subjected to the buoyancy in the box. When the buoyancy of the liquid is greater than the preset force of the float, the float opens the opening;
    合流管，连接所述至少两个水箱的开口。A confluence pipe connects the openings of the at least two water tanks.
  20. 根据权利要求19所述的水箱组件，其特征在于，所述导向管道的顶部和周壁开设有所述进水口。The water tank assembly according to claim 19, wherein the water inlet is provided on the top and the peripheral wall of the guide pipe.
  21. 根据权利要求19所述的水箱组件，其特征在于，所述机械阀包括：The water tank assembly of claim 19, wherein the mechanical valve comprises:
    滤网，所述导向管道位于所述滤网内，或所述导向管道位于所述滤网外。A filter screen, the guide pipe is located inside the filter screen, or the guide pipe is located outside the filter screen.
  22. 根据权利要求19所述的水箱组件，其特征在于，所述机械阀包括：The water tank assembly of claim 19, wherein the mechanical valve comprises:
    安装座，安装在所述安装件，所述阀座连接所述安装座，所述安装座开设有连通所述合流管和所述开口的通道；a mounting seat, mounted on the mounting piece, the valve seat is connected to the mounting seat, and the mounting seat is provided with a channel communicating with the confluence pipe and the opening;
    底盖，可拆卸地连接所述安装座。The bottom cover is detachably connected to the mounting seat.
  23. 根据权利要求19所述的水箱组件，其特征在于，所述机械阀包括：The water tank assembly of claim 19, wherein the mechanical valve comprises:
    弹性件，位于所述导向管道内，所述弹性件抵接所述浮子和所述导向管道的顶部。An elastic piece is located in the guide pipe, the elastic piece abuts the float and the top of the guide pipe.
  24. 根据权利要求19所述的水箱组件，其特征在于，所述浮子呈预设形状以控制所述箱体内的剩余液量。20. The water tank assembly of claim 19, wherein the float has a predetermined shape to control the amount of liquid remaining in the tank.
  25. 根据权利要求19所述的水箱组件，其特征在于，所述浮子呈球形。20. The water tank assembly of claim 19, wherein the float is spherical.
  26. 根据权利要求19所述的水箱组件，其特征在于，所述合流管位于所述开口的上方。20. The water tank assembly of claim 19, wherein the confluence pipe is located above the opening.
  27. 根据权利要求19所述的水箱组件，其特征在于，所述合流管包括：The water tank assembly of claim 19, wherein the confluence pipe comprises:
    一个总管；a supervisor;
    至少两个支管，每个所述支管连接所述总管和所述开口。At least two branch pipes, each of the branch pipes connecting the header pipe and the opening.
  28. 根据权利要求27所述的水箱组件，其特征在于，所述支管开设有插接口，The water tank assembly according to claim 27, wherein the branch pipe is provided with an insertion port,
    所述水箱组件包括连接管道，所述连接管道的一端连接所述机械阀，另一端安装有单向阀，所述连接管道通过所述单向阀连接所述插接口。The water tank assembly includes a connecting pipe, one end of the connecting pipe is connected to the mechanical valve, the other end is installed with a one-way valve, and the connecting pipe is connected to the plug port through the one-way valve.
  29. 根据权利要求28所述的水箱组件，其特征在于，所述插接口内设有凸部，所述单向阀包括阀芯，在所述单向阀连接所述插接口时，所述凸部抵靠所述阀芯以打开所述单向阀，在所述单向阀从所述插接口取下时，所述凸部与所述阀芯分离，所述阀芯关闭所述单向阀。The water tank assembly according to claim 28, wherein a convex portion is provided in the socket, the one-way valve comprises a valve core, and when the one-way valve is connected to the socket, the convex portion against the valve core to open the one-way valve, when the one-way valve is removed from the socket, the protrusion is separated from the valve core, and the valve core closes the one-way valve .
  30. 根据权利要求28所述的水箱组件，其特征在于，所述单向阀位于所述开口的上方。29. The water tank assembly of claim 28, wherein the one-way valve is located above the opening.
  31. 根据权利要求28所述的水箱组件，其特征在于，所述插接口呈喇叭口状。The water tank assembly according to claim 28, wherein the socket is in the shape of a bell mouth.
  32. 根据权利要求28所述的水箱组件，其特征在于，所述单向阀的外周壁设有密封圈，在所述单向阀连接所述插接口时，所述密封圈密封连接所述单向阀的外周壁和所述插接口的内侧壁。The water tank assembly according to claim 28, wherein the outer peripheral wall of the one-way valve is provided with a sealing ring, and when the one-way valve is connected to the socket, the sealing ring is sealingly connected to the one-way valve The outer peripheral wall of the valve and the inner side wall of the socket.
  33. 根据权利要求32所述的水箱组件，其特征在于，所述单向阀的外周壁设有收容槽，所述密封圈部分地容置在所述收容槽中。The water tank assembly according to claim 32, wherein a receiving groove is provided on the outer peripheral wall of the one-way valve, and the sealing ring is partially received in the receiving groove.
  34. 一种无人机，其特征在于，包括：An unmanned aerial vehicle, characterized in that it includes:
    机身，和fuselage, and
    喷洒***，安装在所述机身，所述喷洒***包括权利要求1-33任一项所述的水箱组件。A sprinkler system, mounted on the fuselage, the sprinkler system comprising the water tank assembly of any one of claims 1-33.
  35. 根据权利要求34所述的无人机，其特征在于，所述喷洒***包括水泵，所述水泵连接所述合流管。The drone of claim 34, wherein the spraying system comprises a water pump connected to the confluence pipe.
PCT/CN2021/088920 2021-04-22 2021-04-22 Water tank assembly and unmanned aerial vehicle WO2022222093A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102410386A (en) * 2010-09-25 2012-04-11 北京亚都室内环保科技股份有限公司 Detachable floater type water valve device and humidifier
CN204983035U (en) * 2015-08-01 2016-01-20 江苏双益给排水有限公司 Water supply and sewerage system
CN107187603A (en) * 2017-07-04 2017-09-22 成都天麒科技有限公司 A kind of plant protection unmanned plane movable sealing structure
US20190030237A1 (en) * 2017-07-25 2019-01-31 Lydia Begg Intravenous Bag Attachment
CN109305367A (en) * 2018-11-09 2019-02-05 易蕾 A kind of agricultural irrigation unmanned plane
CN209209051U (en) * 2018-11-27 2019-08-06 深圳市大疆创新科技有限公司 Water tank and unmanned plane

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102410386A (en) * 2010-09-25 2012-04-11 北京亚都室内环保科技股份有限公司 Detachable floater type water valve device and humidifier
CN204983035U (en) * 2015-08-01 2016-01-20 江苏双益给排水有限公司 Water supply and sewerage system
CN107187603A (en) * 2017-07-04 2017-09-22 成都天麒科技有限公司 A kind of plant protection unmanned plane movable sealing structure
US20190030237A1 (en) * 2017-07-25 2019-01-31 Lydia Begg Intravenous Bag Attachment
CN109305367A (en) * 2018-11-09 2019-02-05 易蕾 A kind of agricultural irrigation unmanned plane
CN209209051U (en) * 2018-11-27 2019-08-06 深圳市大疆创新科技有限公司 Water tank and unmanned plane

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