WO2021056140A1 - 接头组件、压力式喷洒系统及可移动平台 - Google Patents

接头组件、压力式喷洒系统及可移动平台 Download PDF

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Publication number
WO2021056140A1
WO2021056140A1 PCT/CN2019/107270 CN2019107270W WO2021056140A1 WO 2021056140 A1 WO2021056140 A1 WO 2021056140A1 CN 2019107270 W CN2019107270 W CN 2019107270W WO 2021056140 A1 WO2021056140 A1 WO 2021056140A1
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WO
WIPO (PCT)
Prior art keywords
return
return passage
valve core
water tank
water pump
Prior art date
Application number
PCT/CN2019/107270
Other languages
English (en)
French (fr)
Inventor
舒展
周乐
李博
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.)
Filing date
Publication date
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 CN201980034225.XA priority Critical patent/CN112218527B/zh
Priority to PCT/CN2019/107270 priority patent/WO2021056140A1/zh
Publication of WO2021056140A1 publication Critical patent/WO2021056140A1/zh

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/005—Special arrangements or adaptations of the spraying or distributing parts, e.g. adaptations or mounting of the spray booms, mounting of the nozzles, protection shields
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0089—Regulating or controlling systems

Definitions

  • the embodiment of the present invention relates to the technical field of spraying systems for plant protection, in particular to a joint assembly, a pressure spraying system and a movable platform.
  • a normally closed pressure switch is set on the spray head.
  • the pressure switch When the system pressure is greater than the preset value, the pressure switch will open. When the spray is stopped, the pressure switch will automatically close to prevent dripping. But the use effect is still not ideal.
  • the pressure switch cannot be opened by hydraulic pressure, which causes the spray system to be unable to exhaust air, and the pressure switch needs to be opened manually. After the air in the system is exhausted, hydraulic pressure can be used to open the pressure switch, and spray normally and achieve the effect of preventing leakage.
  • each nozzle is equipped with a pressure switch.
  • embodiments of the present invention provide a joint assembly, a pressure spray system, and a movable platform.
  • the first aspect of the embodiments of the present invention provides a joint assembly, which is applied to a pressure spray system
  • a water tank connector including a first end for communicating with a water pump, a second end for communicating with a water tank, and a water tank return end, where the first end, the second end and the water tank return end are in communication;
  • the water pump connector includes a third end for communicating with the water pump, a fourth end for communicating with the spray head, and a water pump return end, where the third end, the fourth end and the water pump return end are in communication;
  • the return end of the water tank can communicate with the return end of the water pump to form a return passage, and a valve body device is provided in the return passage, and the valve body device has an open state and a closed state;
  • the return passage in the open state, is conducted so that the gas in the pressure spray system can flow back into the water tank, and in the closed state, the valve body device blocks the water tank.
  • the return channel is used to enable the liquid in the water tank to be pumped to the spray head through the water pump.
  • a second aspect of the embodiments of the present invention provides a pressure spray system, including: a water tank, a water pump, a spray head, and a joint assembly; wherein the joint assembly includes:
  • the water tank connector includes a first end communicating with the water pump, a second end communicating with the water tank, and a water tank return end, where the first end, the second end and the water tank return end are in communication;
  • the water pump connector includes a third end communicating with the water pump, a fourth end communicating with the nozzle through a pipeline, and a water pump return end, where the third end, the fourth end and the water pump return end are in communication;
  • the return end of the water tank can communicate with the return end of the water pump to form a return passage, and a valve body device is provided in the return passage, and the valve body device has an open state and a closed state;
  • the return passage in the open state, is conducted so that the gas in the pressure spray system can flow back into the water tank, and in the closed state, the valve body device blocks the water tank.
  • the return channel is used to enable the liquid in the water tank to be pumped to the spray head through the water pump.
  • a third aspect of the embodiments of the present invention provides a movable platform, including a frame, and a pressure spray system installed on the frame, the pressure spray system including a water tank, a water pump, a spray head, and a joint assembly;
  • the joint components include:
  • the water tank connector includes a first end communicating with the water pump, a second end communicating with the water tank, and a water tank return end, where the first end, the second end and the water tank return end are in communication;
  • the water pump connector includes a third end communicating with the water pump, a fourth end communicating with the nozzle through a pipeline, and a water pump return end, where the third end, the fourth end and the water pump return end are in communication;
  • the return end of the water tank can communicate with the return end of the water pump to form a return passage, and a valve body device is provided in the return passage, and the valve body device has an open state and a closed state;
  • the return passage in the open state, is conducted so that the gas in the pressure spray system can flow back into the water tank, and in the closed state, the valve body device blocks the water tank.
  • the return channel is used to enable the liquid in the water tank to be pumped to the spray head through the water pump.
  • the joint assembly is arranged between the water tank and the water pump, and the joint assembly forms a backflow channel between the water tank and the water pump, and a valve body is arranged in the backflow channel Device, the valve body device has an open state and a closed state.
  • the open state the return channel is conducted, and the gas in the pressure spray system can return to the water tank.
  • the closed state the valve body device blocks the return channel and the water tank The liquid can be sprayed to the spray head through a water pump.
  • the air bubbles in the pressure spraying system are discharged to the water tank through the backflow channel to achieve exhaust, ensuring that the pressure in the system before the water is discharged can reach the preset water pressure, and the spraying system does not need to be sprayed.
  • the nozzles of the system are exhausted. Since the exhaust is not discharged through the nozzles, but directly discharged to the water tank, the liquid will not be wasted during the exhaust, and there is no need to manually turn on the pressure switch of each nozzle to exhaust. It only needs to open the return channel between the water tank and the water pump to achieve exhaust, which improves the operation and spraying efficiency and improves the user experience.
  • Figure 1 is a schematic diagram of the structure of a joint assembly and a water pump provided by an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of the joint assembly and the water pump when the valve body device of the joint assembly is in an open state according to an embodiment of the present invention
  • FIG. 3 is a cross-sectional view of the joint assembly and the water pump when the valve body device of the joint assembly is in a closed state according to an embodiment of the present invention
  • FIG. 4 is a cross-sectional view of the joint assembly and the water pump when the valve body device of the joint assembly is in a closed state according to another embodiment of the present invention
  • FIG. 5 is a cross-sectional view of the joint assembly and the water pump when the valve body device of the joint assembly is in an open state according to another embodiment of the present invention.
  • connection herein includes any direct and indirect means of connection. Therefore, if it is described in the text that a first device is connected to a second device, it means that the first device can be directly connected to the second device, or indirectly connected to the second device through other devices.
  • a pressure switch is provided on the nozzle of the pressure spray system.
  • the pressure switch is opened when the system hydraulic pressure reaches a preset value to achieve spraying. , The pressure switch is automatically closed to prevent dripping.
  • the hydraulic pressure in the system cannot reach the preset value, and the pressure switch cannot be opened to spray.
  • the operator needs to manually adjust the pressure of each nozzle.
  • the air in the system can only be used normally after the pressure switch is opened, which leads to cumbersome operation before spraying and overall reduction of spraying efficiency.
  • the exhaust process is realized from the nozzle, this process will cause the liquid medicine to follow the discharge, resulting in failure The necessary liquid medicine is wasted, which is not conducive to environmental protection.
  • FIG. 1 is a schematic structural diagram of a joint assembly and a water pump according to an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of the joint assembly and a water pump when the valve body device of the joint assembly according to an embodiment of the present invention is in an open state
  • the embodiment of the invention provides a cross-sectional view of the joint assembly and the water pump when the valve body device of the joint assembly is in the closed state.
  • the joint assembly of this embodiment includes: a water tank joint 10 and a water pump joint 20.
  • the water tank connector 10 includes a first end 11 for communicating with the water pump 100, a second end 12 for communicating with a water tank (not shown in the figure), and a water tank return end 13, the first end 11 and the second end 12 is in communication with the return end 13 of the water tank.
  • the first end 11 can be used to detachably connect with the water pump 100.
  • the second end 12 can be used to detachably connect with the water tank.
  • Both the first end 11 and the water pump 100 and the second end 12 and the water tank can be connected by a quick disassembly structure, such as a threaded extrusion joint connection, so as to realize the quick disassembly and assembly of the water tank joint 10.
  • the water pump connector 20 may include a third end 21 for communicating with the water pump 100, a fourth end 22 for communicating with a spray head (not shown in the figure), and a water pump return end 23, a third end 21, a fourth end 22 Connect with the return end of the water pump 23.
  • the third end 21 can be used to detachably connect to the water pump 100
  • the fourth end 22 can be used to detachably connect to the spray head.
  • Both the third end 21 and the water pump 100 and the fourth end 22 and the spray head can be connected by a quick disassembly structure, such as a threaded extrusion joint connection, so as to realize the quick disassembly and assembly of the water pump joint 20.
  • first end “first end”, “second end”, “water tank return end”, “third end”, “fourth end”, and “water pump return end” described in this embodiment do not mean At the end, it divides the circulation channels in the water tank connector 10 and the water pump connector 20.
  • the return end 13 of the water tank and the return end 23 of the water pump can be communicated to form a return passage 30.
  • a valve body device 31 is provided in the return passage 30.
  • the valve body device 31 has an open state (as shown in Figure 2) and a closed state (as shown in Figure 3). Show). Among them, in the open state, the return channel 30 is conducted so that the gas in the pressure spray system can return to the water tank. In the closed state, the valve body device 31 blocks the return channel 30 so that the liquid in the water tank can be The water pump 100 is pumped to the spray head.
  • the return end 13 of the water tank and the return end 23 of the water pump can be detachably connected through a quick-release joint, so as to facilitate the docking, disassembly and assembly of the water tank connector 10 and the water pump connector 20.
  • the shape of the channel in the return end 13 of the water tank is not limited to the linear type shown in Figures 2 and 3, and the shape of the channel in the return end 23 of the water pump is not limited to the shape L shown in Figure 3, the return end 13 of the water tank and the return flow of the water pump
  • the shape of the channel in the end 23 can be linear, L-shaped, S-shaped, etc. This embodiment is not limited, as long as the return channel 30 can be formed after the return end 13 of the water tank communicates with the return end 23 of the water pump.
  • the valve body device 31 can be installed in the return passage 30 in a horizontal, vertical or inclined posture, which is not limited in this embodiment. As shown in FIGS. 2 and 3, the valve body device 31 is vertically installed in the water pump connector 20 as Optionally, the valve body device 31 may also be arranged in the water tank joint 10.
  • the return end 23 of the water pump and the valve body device 31 can be manual valves. Before spraying, the operator can manually set the valve body device 31 to the open state, so that the gas in the spraying system can be discharged from the return channel 30 to the water tank. .
  • valve body device 31 After the exhaust is completed, the operator can set the valve body device 31 to a closed state, so that the return channel 30 is blocked, and the liquid in the water tank can only be pumped to the spray head through the action of the water pump 100.
  • the valve body device 31 is an electronically controlled valve, such as a solenoid valve, the valve body device 31 can accept an opening control command to open and conduct the return passage 30, or accept a closing control command to close it to block the return passage 30.
  • a joint assembly is arranged between the water tank and the water pump.
  • the joint assembly forms a return channel between the water tank and the water pump, and a valve body device is arranged in the return channel.
  • the valve body device has an open state and In the closed state, in the open state, the return channel is connected, and the gas in the pressure spray system can return to the water tank. In the closed state, the valve body device blocks the return channel, and the liquid in the water tank can be pumped to the spray head by the water pump. spray.
  • the air bubbles in the pressure spraying system are discharged to the water tank through the backflow channel to achieve exhaust, ensuring that the pressure in the system before the water is discharged can reach the preset water pressure, and the spraying system does not need to be sprayed.
  • the nozzle of the system is exhausted. Since the exhaust is not discharged through the nozzle, it is directly discharged through the return channel to the water tank. When the exhaust is exhausted, the liquid medicine will not be wasted, and it will not increase the burden on the environment. Environmental protection. And because the exhaust is opened through the total return passage between the water tank and the water pump, there is no need to manually open the pressure switch of each nozzle to exhaust, which improves the operation and spraying efficiency and improves the user experience.
  • the valve body device 31 may include a valve core 311 movably arranged in the return passage 30, and the valve core 311 can When the hydraulic pressure reaches a preset value, the valve body device 31 is moved under the action of the hydraulic pressure until the valve body device 31 is in an open state, so as to conduct the return passage 30.
  • the valve body device 31 may also include a valve seat, the valve core 311 can be slidably arranged in the valve seat, and the valve seat is fixed in the return passage 30. At this time, when the valve core 311 moves Relative to the movement of the return passage 30, it can also be understood that the valve core 311 is movably arranged in the return passage 30.
  • valve core 311 can be slidably arranged in the return passage.
  • the corresponding part of the return passage 30 where the valve body device 31 is placed is a linear passage, so that the valve core 31 can slide.
  • the spool 311 can move to the open state in the following two situations:
  • the first is that the operator applies an external force to the valve core 311 to drive the valve core 311 to slide to a preset open position according to the exhaust demand.
  • the valve body device 31 is an electrically controlled valve body, such as a solenoid valve
  • the external force may be the magnetic force generated by the electromagnet when it is energized
  • the electromagnet of the valve body device 31 may be combined with a switch assembly and a power supply to control
  • the operator can operate the switch assembly to make the control circuit conductive, and the electromagnet passes current so that the electromagnet generates magnetic force to attract the valve core 311 to slide to the preset open position.
  • valve body device 31 When the valve body device 31 is a hand-controlled valve body, the valve core 311 can be driven by artificial external force to slide to a preset open position. When the spool 311 is driven by an external force, the valve body device 31 can play a role in exhausting the excess cavity in the system to ensure that the system pressure can reach the preset spraying pressure, even when the spraying system is used for the first time.
  • the pipe is full of air, or it can be completely exhausted.
  • the second is that the valve core 311 is driven by the hydraulic pressure in the entire spray system.
  • the hydraulic pressure drives the valve core 311 to slide to the preset open position.
  • the valve body device 31 can act as a pressure relief
  • a preset opening pressure can be set for the valve body device 31, so that when the hydraulic pressure reaches a preset value, the valve core 311 moves until the valve body device 31 is in an open state.
  • the preset pressure relief pressure can be 0.5MPa-0.6MPa.
  • the system can spray normally.
  • the system hydraulic pressure can be maintained at about 0.3MPa, and the valve body device 31 will not be opened and maintained in a closed state.
  • the valve body device 31 Once the system hydraulic pressure exceeds the preset pressure relief pressure, the valve body device 31 will be pushed open to achieve pressure relief, the system pressure drops, the system is protected, and the overpressure protection is achieved.
  • valve body device 31 can serve as both an exhaust valve and a pressure relief valve, and a valve has dual functions.
  • the operator can judge whether the exhaust is completed based on experience.
  • the airflow sound that can be heard is obviously different from the airflow sound during the exhaust process.
  • Experienced operators Can be accurately grasped.
  • the valve body device 31 may further include an elastic member 312 and a driving member 313.
  • the elastic member 312 is provided between the valve core 311 and the driving member 313.
  • the driving member 313 is used to drive the elastic member 312 to deform or restore the deformation, so as to drive the valve core 312 to move.
  • the elastic member 312 may be an axial spring or an elastic rubber member, as long as it can be deformed by moving in the axial direction and can be restored to the deformation.
  • one end of the elastic member 312 may be connected to the valve core 311, and the other end of the elastic member 312 may be connected to the driving member 313.
  • the operator can operate the driving member 313 to move the driving member 313 in the axial direction of the elastic member 312.
  • the elastic member 312 is compressed.
  • the elastic member 312 recovers from deformation or elongation.
  • the deformation or restoration of the elastic member 312 can drive the valve core 311 to move, and the movement of the valve core 311 realizes the return passage 30 Turn on or off.
  • one end of the elastic member 312 may abut the valve core 311, and the other end of the elastic member 312 may be connected with the driving member 313; or, one end of the elastic member 312 may be connected with the valve core, and the other end of the elastic member may be connected with the driving member 313.
  • Piece 313 abuts. Since the elastic member 312 is located between the valve core 311 and the driving member 313, the elastic member 312 does not need to be connected to the valve core 311 and the driving member 313 at both ends.
  • valve core 311, the elastic member 312, and the driving member 313 are all located in the return channel 30 and can be in contact with the liquid medicine, in order to prevent the valve core 311, the elastic member 312 and the driving member 313 from being corroded, the valve body device is improved. 31 service life.
  • the material of the valve core 311 is a corrosion-resistant material; or, the outer surface of the valve core 311 is wrapped by a corrosion-resistant layer.
  • the material of the elastic member 312 is a corrosion-resistant material; or, the outer surface of the elastic member 312 is wrapped by a corrosion-resistant layer.
  • the material of the driving member 313 may be a corrosion-resistant material, or the outer surface of the driving member 313 is wrapped by a corrosion-resistant layer.
  • the corrosion-resistant material may be a corrosion-resistant material formed by adding chromium, nickel, aluminum, titanium, etc., which can form a protective film into steel.
  • the materials of the valve core 311, the elastic member 312 and the driving member 313 may be the same or different, which is not limited in this embodiment.
  • the return end 23 of the water pump has an opening 231 for communicating with the third end 21 and the fourth end 22, and/or the return end 13 of the water tank is used for having an opening communicating with the first end 11 and the second end 12 hole.
  • the valve core 311 is in clearance fit with the return passage 30, the cross-sectional area of the opening 231 is smaller than the cross-sectional area of the return passage 30, and the valve core 311 is used to press against the opening 231 under the elastic force of the elastic member 312 to block the opening 231.
  • the valve core 311 can also extend into the opening 231 to block the opening 231.
  • valve body device 31 When the return end 23 of the water pump has an opening 231, the valve body device 31 can be arranged in the water pump connector 20, and the valve core 311 is specifically used to block the opening 231 in the water pump connector 20 to block or open the return passage 30.
  • the valve body device 31 When the return end 13 of the water tank has an opening, the valve body device 31 can be arranged in the water tank connector 10, and the valve core 311 is specifically used to seal the opening in the water tank connector 10 to block or open the return channel 30.
  • opening hole specifically refers to a through hole used to open or block the return passage 30.
  • FIGS. 2 and 3 there is an opening 231 in the return end 23 of the water pump.
  • the valve core 311 does not block the opening 231, the return channel 30 is conducted, and the water pump connector 20 is connected to the water tank connector 10, and the gas or liquid in the system can enter the water tank through the return channel 30.
  • the water pump draws the gas from each pipeline in the system to the return passage 30.
  • the gas first passes through the opening 231, and then flows into the entire return passage 30 through the gap between the valve core 311 and the return passage 30, and then Into the water tank to achieve exhaust.
  • the valve core 311 moves away from the hole 231 under the action of hydraulic pressure to open the opening.
  • the liquid first passes through the opening 231, and then flows through the gap between the valve core 311 and the return passage 30 to the entire In the return channel 30, and then into the water tank, the system hydraulic pressure is reduced, the pressure is relieved, and the safety of the system is ensured.
  • the system hydraulic pressure is less than the preset relief pressure, the valve core 311 will not open due to hydraulic pressure, and the valve core 311 will block the opening.
  • the water pump 100 pumps the liquid medicine in the water tank from the water tank through the water tank connector 10, and pumps it to the spray head through the water pump connector 20 to achieve spraying.
  • the conduction or cut-off of the return passage 30 is realized by the fit of the valve core 311 and the opening 231. As long as the valve core 311 fails to completely block the opening 231, the return passage 30 can be connected. In particular, Once the system hydraulic pressure reaches the preset pressure relief pressure value, the opening 231 can be opened immediately, which has a sensitive response and rapid action, which can effectively improve user experience and improve system safety.
  • the end of the valve core 311 used to contact the opening 231 may have an elastic sealing member 3111 for sealing and blocking the opening 231.
  • the elastic sealing member 3111 may be a rubber member, a silicone member, etc., and the opening 231 is blocked by the elastic sealing member 3111, so that the valve core 311 can effectively seal the opening 231. It can be ensured that during normal spraying, the liquid medicine will not enter the water tank through the return channel 30, and the spraying pressure of the system can be maintained, and the reliability of the system can be improved.
  • the elastic sealing member 3111 may be attached to the end surface of the valve core 311; specifically, an adhesive may be used to attach the elastic sealing member 3111 to the end surface of the valve core 311.
  • the valve core 311 has a groove for accommodating the elastic sealing member 3111, and the elastic sealing member 3111 is embedded in the groove.
  • the elastic sealing element 3111 can be bonded to the side wall of the groove by an adhesive, or, during molding, the valve core 311 can be integrally injection molded with the elastic sealing element 3111, and the valve core 311 can be used as an insert to be combined with the elastic sealing element 3111 , The process is simple and the cost is low.
  • valve core 311 may be an elastic sealing member 3111 as a whole.
  • the valve core 311 is a rubber member, which itself has the effect of corrosion resistance and can effectively seal under the action of the elastic member 312 Opening 231.
  • an elastic seal may be provided on the side wall of the valve core 311 or the side wall of the opening 231 to ensure that the valve core 311 can To effectively block the opening 231 and smoothly escape from the opening 231, it is necessary to design the elastic force of the elastic seal rationally.
  • the driving member 313 may have an extreme driving position.
  • the elastic member 312 may be in a preset compression position.
  • the elastic member 312 can continue to be compressed under the action of hydraulic pressure until the valve core 311 opens the opening 231 to make the return passage 30 conduct.
  • a limit structure may be provided in the moving direction of the driving member 313 to limit the driving member 313 to continue moving after reaching the limit driving position, and the corresponding relationship between the limit position of the driving member 313 and the compression amount of the elastic member 312 may be preset. Different compression amounts of the elastic member 312 have different elastic potential energy.
  • the elastic member 312 can be maintained at the position of blocking the opening 231 by the preset compression amount, and has a preset elasticity. Potential energy.
  • the hydraulic pressure of the system is not enough to overcome the elastic potential energy of the elastic member 312 to push the valve core 311 open, the system is maintained in the spraying state, and when the hydraulic pressure of the system reaches the preset pressure relief pressure, the system The internal hydraulic pressure is too large to overcome the elastic potential energy of the elastic member 312, so that the elastic member 312 continues to compress in a direction away from the hole 231, thereby pushing the valve core 311 open to achieve pressure relief.
  • the driving member 313 may be a knob, and the driving member 313 may be threadedly connected with the return channel 30.
  • the driving member 313 can be screwed in the direction where the opening 231 is located, and it can be screwed to the end of the thread or a preset screwing position to reach the limit driving position.
  • the driving member 313 may be a convex post inserted into the return passage 30, an external thread is provided on the outer surface of the protruding post, and an internal thread is provided on the inner surface of the return passage 30, and the two are screwed together to realize driving Screw in and screw out of piece 313.
  • the driving member 313 may be a cylinder sleeved on the outer side wall of the water pump connector 20, the inner surface of the cylinder body has internal threads, and the outer surface of the water pump connector 20 has external threads, and the two are screwed together to realize the driving member 313.
  • the operation mode of the knob is relatively simple, and the processing is convenient.
  • the driving member 313 may be a push-pull block, and the driving member 313 may have a buckle. When the driving member 313 reaches the limit driving position, the driving member 313 may be engaged with a preset snap fit on the return channel 30 through the buckle. Cooperate with each other and be fixed.
  • the water pump return end 23 of the water pump connector 20 may have a first pipe a and a second pipe b, and the first pipe a Intersect and communicate with the second pipeline b.
  • the valve body device 31 can be placed on the second pipeline b.
  • the first pipeline a and the second pipeline b can be led out from the side wall of the pipeline corresponding to the second pipeline b.
  • the end may be a free end b1, and the driving member 313 may be provided at the free end b1.
  • the driving member 313 may include an action part 3131 extending into the free end b1 and a driving part 3132 exposed from the free end b1.
  • the free end b1 can be blocked by the action portion 3131 of the driving member 313 to prevent the liquid medicine from flowing out of the free end b1 and polluting the environment.
  • a sealing ring may be provided between the driving member 313 and the return channel 30 to prevent liquid from flowing out between the driving member 313 and the return channel 30.
  • a sealing ring may be provided between the inner wall of the free end b1 of the second pipeline b and the action portion 3131 of the driving member 313 to seal the return channel 30 in a radial direction, so as to more effectively prevent the liquid from moving along the axial direction. Flow out of the free end b1 and pollute the environment.
  • the return passage 30 may include a first return passage 30a communicating with the first end 11 and the second end 12, and a third end 21 and the fourth end 22 are connected to the second return passage 30b, the first return passage 30a is communicated with the second return passage 30b, and there is an angle between the first return passage 30a and the second return passage 30b.
  • the valve body device 31 can be provided in the first return passage 30a or the second return passage 30b.
  • the valve core 311 may be arranged in one of the first return passage 30a and the second return passage 30b, and the movement direction of the valve core 311 is consistent with the extension direction of one of the first return passage 30a and the second return passage 30b.
  • valve core 311 is provided in the second return passage 30b.
  • the valve core 311 may be provided in the first return passage 30a, as long as it can be blocked or blocked by the valve core 311. It suffices to turn on the return channel 30.
  • the included angle between the first return passage 30a and the second return passage 30b can be any angle from 0° to 90°.
  • the first return passage 30a and the second return passage 30b are substantially perpendicular, so that , During processing, it is more convenient, and when in use, the flow resistance of the fluid in the return channel 30 can also be reduced as much as possible.
  • the return end 13 of the water tank and the first pipeline a can be connected to form a first return passage 30a inside, and the second return passage 30b can be located in the second pipeline b.
  • the water tank connector 10 and the water pump connector 20 It can be detachably connected.
  • the return end 13 of the water tank and the first pipeline a can be detachably connected through a quick-release joint, so as to facilitate the assembly and maintenance of the water tank joint 10 and the water pump joint 20.
  • valve core 311 opens or closes the return passage 30.
  • valve core 311 can make the return passage 30 open and close.
  • state-time switching it can also be implemented through the following implementations:
  • FIG. 4 is a cross-sectional view of the joint assembly and the water pump when the valve body device of the joint assembly provided by another embodiment of the present invention is in the closed state
  • FIG. 5 is the valve body device of the joint assembly provided by another embodiment of the present invention being opened Sectional view of the joint assembly and the water pump in the state.
  • the valve core 311 can move in one of the first return passage 30a and the second return passage 30b, and the valve core 311 can move to open the other of the first return passage 30a and the second return passage 30b to conduct the return passage 30, And, the valve core 311 can move to block the other one of the first return passage 30 a and the second return passage 30 b to block the return passage 30. As shown in FIG.
  • the valve core 311 may be arranged in the second return passage 30b, and the valve core 311 may be located at the corner of the first return passage 30a and the second return passage 30b to block the first return passage 30a.
  • the return passage 30 is in a closed state. Or, as shown in FIG. 5, continue to descend until the first return passage 30a is opened, and the entire return passage 30 is in an open state.
  • valve body device 31 to open and close the return passage 30, which are not limited to the ways exemplified in the embodiments of the present invention, and the embodiments of the present invention do not list them one by one.
  • This embodiment provides a pressure spray system, which includes a water tank, a water pump 100, a spray head, and a joint assembly, and the joint assembly is applied to the pressure spray system.
  • the joint assembly includes: a water tank joint 10 and a water pump joint 20.
  • the water tank connector 10 includes a first end 11 for communicating with the water pump 100, a second end 12 for communicating with a water tank (not shown in the figure), and a water tank return end 13, the first end 11 and the second end 12 is in communication with the return end 13 of the water tank.
  • the water pump connector 20 may include a third end 21 for communicating with the water pump 100, a fourth end 22 for communicating with a spray head (not shown in the figure), and a water pump return end 23, a third end 21, a fourth end 22 Connect with the return end of the water pump 23.
  • the return end 13 of the water tank and the return end 23 of the water pump can be communicated to form a return passage 30.
  • a valve body device 31 is provided in the return passage 30.
  • the valve body device 31 has an open state (as shown in Figure 2) and a closed state (as shown in Figure 3). Show). Among them, in the open state, the return channel 30 is conducted so that the gas in the pressure spray system can return to the water tank. In the closed state, the valve body device 31 blocks the return channel 30 so that the liquid in the water tank can be The water pump 100 is pumped to the spray head.
  • a joint assembly is arranged between the water tank and the water pump.
  • the joint assembly forms a backflow channel between the water tank and the water pump, and a valve body device is arranged in the backflow channel.
  • the valve body device has an open state and In the closed state, in the open state, the return channel is connected, and the gas in the pressure spray system can return to the water tank. In the closed state, the valve body device blocks the return channel, and the liquid in the water tank can be pumped to the spray head by the water pump. spray.
  • the air bubbles in the pressure spraying system are discharged to the water tank through the backflow channel to achieve exhaust, ensuring that the pressure in the system before the water is discharged can reach the preset water pressure, and the spraying system does not need to be sprayed.
  • the nozzle of the system is exhausted. Since the exhaust is not discharged through the nozzle, it is directly discharged through the return channel to the water tank. When the exhaust is exhausted, the liquid medicine will not be wasted, and it will not increase the burden on the environment. Environmental protection. And because the exhaust is opened through the total return passage between the water tank and the water pump, there is no need to manually open the pressure switch of each nozzle to exhaust, which improves the operation and spraying efficiency and improves the user experience.
  • valve body device 31 may include a valve core 311 movably arranged in the return passage 30, and the valve core 311 can When the hydraulic pressure reaches a preset value, the valve body device 31 is moved under the action of the hydraulic pressure until the valve body device 31 is in an open state, so as to conduct the return passage 30.
  • the valve body device 31 may further include an elastic member 312 and a driving member 313.
  • the elastic member 312 is provided between the valve core 311 and the driving member 313.
  • the driving member 313 is used to drive the elastic member 312 to deform or restore the deformation, so as to drive the valve core 312 to move.
  • the elastic member 312 may be an axial spring or an elastic rubber member, as long as it can be deformed by moving in the axial direction and can be restored to the deformation.
  • one end of the elastic member 312 may be connected to the valve core 311, and the other end of the elastic member 312 may be connected to the driving member 313.
  • the operator can operate the driving member 313 to move the driving member 313 in the axial direction of the elastic member 312.
  • the elastic member 312 is compressed.
  • the elastic member 312 recovers from deformation or elongation.
  • the deformation or restoration of the elastic member 312 can drive the valve core 311 to move, and the movement of the valve core 311 realizes the return passage 30 Turn on or off.
  • one end of the elastic member 312 may abut the valve core 311, and the other end of the elastic member 312 may be connected with the driving member 313; or, one end of the elastic member 312 may be connected with the valve core, and the other end of the elastic member may be connected with the driving member 313.
  • Piece 313 abuts. Since the elastic member 312 is located between the valve core 311 and the driving member 313, the elastic member 312 does not need to be connected to the valve core 311 and the driving member 313 at both ends.
  • valve core 311, the elastic member 312, and the driving member 313 are all located in the return channel 30 and can be in contact with the liquid medicine, in order to prevent the valve core 311, the elastic member 312 and the driving member 313 from being corroded, the valve body device is improved. 31 service life.
  • the material of the valve core 311 is a corrosion-resistant material; or, the outer surface of the valve core 311 is wrapped by a corrosion-resistant layer.
  • the material of the elastic member 312 is a corrosion-resistant material; or, the outer surface of the elastic member 312 is wrapped by a corrosion-resistant layer.
  • the material of the driving member 313 may be a corrosion-resistant material, or the outer surface of the driving member 313 is wrapped by a corrosion-resistant layer.
  • the return end 23 of the water pump has an opening 231 for communicating with the third end 21 and the fourth end 22, and/or the return end 13 of the water tank is used for having an opening communicating with the first end 11 and the second end 12 hole.
  • the valve core 311 is in clearance fit with the return passage 30, the cross-sectional area of the opening 231 is smaller than the cross-sectional area of the return passage 30, and the valve core 311 is used to press against the opening 231 under the elastic force of the elastic member 312 to block the opening 231.
  • the valve core 311 can also extend into the opening 231 to block the opening 231.
  • the end of the valve core 311 used to contact the opening 231 may have an elastic sealing member 3111 for sealing and blocking the opening 231.
  • the elastic sealing member 3111 may be attached to the end surface of the valve core 311; specifically, an adhesive may be used to attach the elastic sealing member 3111 to the end surface of the valve core 311.
  • the valve core 311 has a groove for accommodating the elastic sealing member 3111, and the elastic sealing member 3111 is embedded in the groove.
  • the valve core 311 may be an elastic seal 3111 as a whole,
  • the driving member 313 may have a limit driving position.
  • the elastic member 312 may be in a preset compression position. When the preset value is reached, the elastic member 312 can continue to be compressed under the action of hydraulic pressure until the valve core 311 opens the opening 231 to make the return passage 30 conduct.
  • the driving member 313 may be a knob, and the driving member 313 may be threadedly connected with the return channel 30. Further, a sealing ring may be provided between the driving member 313 and the return channel 30 to prevent liquid from flowing out between the driving member 313 and the return channel 30.
  • the structure and function of the joint assembly in this embodiment are the same as those in the fourth embodiment. For details, reference may be made to the description of the fourth embodiment, which will not be repeated here.
  • the return passage 30 may include a first return passage 30a communicating with the first end 11 and the second end 12, and a third return passage 30a.
  • the end 21 and the fourth end 22 communicate with the second return passage 30b
  • the first return passage 30a is communicated with the second return passage 30b
  • the included angle between the first return passage 30a and the second return passage 30b can be any angle from 0° to 90°.
  • the first return passage 30a and the second return passage 30b are substantially perpendicular.
  • valve core 311 opens or closes the return passage 30.
  • valve core 311 can make the return passage 30 in an open state and in addition to time switching in the closed state, the following implementations can also be used:
  • FIG. 4 is a cross-sectional view of the joint assembly and the water pump when the valve body device of the joint assembly provided by another embodiment of the present invention is in the closed state
  • FIG. 5 is the valve body device of the joint assembly provided by another embodiment of the present invention being opened Sectional view of the joint assembly and the water pump in the state.
  • the valve core 311 can move in one of the first return passage 30a and the second return passage 30b, and the valve core 311 can move to open the other of the first return passage 30a and the second return passage 30b to conduct the return passage 30, And, the valve core 311 can move to block the other one of the first return passage 30 a and the second return passage 30 b to block the return passage 30.
  • the movable platform of this embodiment may include an agricultural plant protection drone, a pesticide spraying vehicle, and a human spraying device. It includes a rack and a pressure spray system installed on the rack.
  • the pressure spray system includes a water tank, a water pump 100, a spray head, and a joint assembly.
  • the joint assembly is used in the pressure spray system. Specifically, please refer to FIGS. 1 to 3, where the joint assembly includes: a water tank joint 10 and a water pump joint 20.
  • the water tank connector 10 includes a first end 11 for communicating with the water pump 100, a second end 12 for communicating with a water tank (not shown in the figure), and a water tank return end 13, the first end 11 and the second end 12 is in communication with the return end 13 of the water tank.
  • the water pump connector 20 may include a third end 21 for communicating with the water pump 100, a fourth end 22 for communicating with a spray head (not shown in the figure), and a water pump return end 23, a third end 21, a fourth end 22 Connect with the return end of the water pump 23.
  • the return end 13 of the water tank and the return end 23 of the water pump can be communicated to form a return passage 30.
  • a valve body device 31 is provided in the return passage 30.
  • the valve body device 31 has an open state (as shown in Figure 2) and a closed state (as shown in Figure 3). Show). Among them, in the open state, the return channel 30 is conducted so that the gas in the pressure spray system can return to the water tank. In the closed state, the valve body device 31 blocks the return channel 30 so that the liquid in the water tank can be The water pump 100 is pumped to the spray head.
  • the movable platform provided by the embodiment of the present invention has a pressure spray system.
  • a joint assembly is arranged between the water tank and the water pump.
  • the joint assembly forms a backflow channel between the water tank and the water pump, and is in the backflow channel Set up a valve body device.
  • the valve body device has an open state and a closed state. When in the open state, the return channel is conducted, and the gas in the pressure spray system can return to the water tank. When in the closed state, the valve body device blocks the return channel , The liquid in the water tank can be sprayed to the nozzle through the water pump.
  • the air bubbles in the pressure spraying system are discharged to the water tank through the backflow channel to achieve exhaust, ensuring that the pressure in the system before the water is discharged can reach the preset water pressure, and the spraying system does not need to be sprayed.
  • the nozzle of the system is exhausted. Since the exhaust is not discharged through the nozzle, it is directly discharged through the return channel to the water tank. When the exhaust is exhausted, the liquid medicine will not be wasted, and it will not increase the burden on the environment. Environmental protection. And because the exhaust is opened through the total return passage between the water tank and the water pump, there is no need to manually open the pressure switch of each nozzle to exhaust, which improves the operation and spraying efficiency and improves the user experience.
  • the valve body device 31 may include a valve core 311 movably arranged in the return passage 30, and the valve core When the hydraulic pressure reaches a preset value, the 311 can move under the action of the hydraulic pressure until the valve body device 31 is in an open state, so as to conduct the return passage 30.
  • the valve body device 31 may further include an elastic member 312 and a driving member 313.
  • the elastic member 312 is provided between the valve core 311 and the driving member 313.
  • the driving member 313 is used to drive the elastic member 312 to deform or restore the deformation, so as to drive the valve core 312 to move.
  • the elastic member 312 may be an axial spring or an elastic rubber member, as long as it can be deformed by moving in the axial direction and can be restored to the deformation.
  • one end of the elastic member 312 may be connected to the valve core 311, and the other end of the elastic member 312 may be connected to the driving member 313.
  • the operator can operate the driving member 313 to move the driving member 313 in the axial direction of the elastic member 312.
  • the elastic member 312 is compressed.
  • the elastic member 312 recovers from deformation or elongation.
  • the deformation or restoration of the elastic member 312 can drive the valve core 311 to move, and the movement of the valve core 311 realizes the return passage 30 Turn on or off.
  • one end of the elastic member 312 may abut the valve core 311, and the other end of the elastic member 312 may be connected with the driving member 313; or, one end of the elastic member 312 may be connected with the valve core, and the other end of the elastic member may be connected with the driving member 313.
  • Piece 313 abuts. Since the elastic member 312 is located between the valve core 311 and the driving member 313, the elastic member 312 does not need to be connected to the valve core 311 and the driving member 313 at both ends.
  • valve core 311, the elastic member 312, and the driving member 313 are all located in the return channel 30 and can be in contact with the liquid medicine, in order to prevent the valve core 311, the elastic member 312 and the driving member 313 from being corroded, the valve body device is improved. 31 service life.
  • the material of the valve core 311 is a corrosion-resistant material; or, the outer surface of the valve core 311 is wrapped by a corrosion-resistant layer.
  • the material of the elastic member 312 is a corrosion-resistant material; or, the outer surface of the elastic member 312 is wrapped by a corrosion-resistant layer.
  • the material of the driving member 313 may be a corrosion-resistant material, or the outer surface of the driving member 313 is wrapped by a corrosion-resistant layer.
  • the return end 23 of the water pump has an opening 231 for communicating with the third end 21 and the fourth end 22, and/or the return end 13 of the water tank is used for having an opening communicating with the first end 11 and the second end 12 hole.
  • the valve core 311 is in clearance fit with the return passage 30, the cross-sectional area of the opening 231 is smaller than the cross-sectional area of the return passage 30, and the valve core 311 is used to press against the opening 231 under the elastic force of the elastic member 312 to block the opening 231.
  • the valve core 311 can also extend into the opening 231 to block the opening 231.
  • the end of the valve core 311 for contacting the opening 231 may have an elastic sealing member 3111 for sealing and blocking the opening 231.
  • the elastic sealing member 3111 may be attached to the end surface of the valve core 311; specifically, an adhesive may be used to attach the elastic sealing member 3111 to the end surface of the valve core 311.
  • the valve core 311 has a groove for accommodating the elastic sealing member 3111, and the elastic sealing member 3111 is embedded in the groove.
  • the valve core 311 may be an elastic seal 3111 as a whole,
  • the driving member 313 may have a limit driving position.
  • the elastic member 312 may be in a preset compression position.
  • the elastic member 312 can continue to compress under the action of the hydraulic pressure until the valve core 311 opens the opening 231 to make the return passage 30 conduct.
  • the driving member 313 may be a knob, and the driving member 313 may be threadedly connected with the return channel 30.
  • a sealing ring may be provided between the driving member 313 and the return channel 30 to prevent liquid from flowing out between the driving member 313 and the return channel 30.
  • the return passage 30 may include a first return passage 30a communicating with the first end 11 and the second end 12, and The third end 21 and the fourth end 22 communicate with the second return passage 30b, the first return passage 30a is communicated with the second return passage 30b, and there is an angle between the first return passage 30a and the second return passage 30b.
  • the included angle between the first return passage 30a and the second return passage 30b can be any angle from 0° to 90°.
  • the first return passage 30a and the second return passage 30b are substantially perpendicular.
  • valve core 311 opens or closes the return passage 30.
  • valve core 311 can make the return passage 30 in an open state and in addition to time switching in the closed state, the following implementations can also be used:
  • FIG. 4 is a cross-sectional view of the joint assembly and the water pump when the valve body device of the joint assembly provided by another embodiment of the present invention is in the closed state
  • FIG. 5 is the valve body device of the joint assembly provided by another embodiment of the present invention being opened Sectional view of the joint assembly and the water pump in the state.
  • the valve core 311 can move in one of the first return passage 30a and the second return passage 30b, and the valve core 311 can move to open the other of the first return passage 30a and the second return passage 30b to conduct the return passage 30, And, the valve core 311 can move to block the other one of the first return passage 30 a and the second return passage 30 b to block the return passage 30.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical or mechanical. Or other forms.

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Abstract

一种接头组件、压力式喷洒系统及可移动平台，接头组件应用于压力式喷洒系统，包括：水箱接头（10），包括用于与水泵（100）连通的第一端（11）、用于与水箱连通的第二端（12），以及水箱回流端（13），第一端（11）、第二端（12）和水箱回流端（13）连通；水泵接头（20），包括用于与水泵（100）连通的第三端（21）、用于与喷头连通的第四端（22），以及水泵回流端（23），第三端（21）、第四端（22）和水泵回流端（23）连通；水箱回流端（13）与水泵回流端（23）能够连通形成回流通道（30），在回流通道（30）内设有阀体装置（31），阀体装置（31）具有打开状态和关闭状态；在打开状态时，回流通道（30）导通，在关闭状态时，阀体装置（31）封堵回流通道（30）。

Description

接头组件、压力式喷洒系统及可移动平台 技术领域
本发明实施例涉及植保的喷洒系统技术领域，尤其涉及接头组件、压力式喷洒系统及可移动平台。
背景技术
随着环保要求的提高，各国对喷洒系统不得漏滴的标准越发严格，比如，国内要求停喷5秒后漏滴的数量不能超过5滴，日本要求喷洒系统能在1秒内停喷，然后1滴都不允许漏。由于重力的作用，水泵直连喷嘴的喷洒系统普遍存在漏滴的问题，即在喷洒系统关闭的情况下，喷嘴会继续滴药液。漏滴浪费了药液，并对环境造成污染。
相关技术的压力式喷洒系统中，在喷头上设置一个常闭的压力开关，当系统压力大于预设值时，压力开关才会打开，当停喷时，压力开关自动关闭，从而防止漏滴。但是使用效果仍不理想。例如，当喷洒管道内尤其是泵腔内有空气时，喷头出水口压力无法达到预设值，从而无法借助液压力将压力开关顶开，导致喷洒系统无法排气，需要手动将压力开关打开，系统内的空气排尽后，才能借助液压力打开压力开关，正常喷洒并达到防漏滴的效果。又例如，每个喷头上设置一个压力开关，喷洒前，均需要将手动将每个喷头对应的压力开关打开，实现排气泄压，但是由于喷洒系统的喷头数量很多，每次喷洒前需要将每个喷头上对应的压力开关打开，费时费力，降低了喷洒效率。
发明内容
针对上述至少一个问题，本发明实施例提供一种接头组件、压力式喷洒系统及可移动平台。
本发明实施例第一方面提供一种接头组件，应用于压力式喷洒系统，
包括水箱接头，包括用于与水泵连通的第一端、用于与水箱连通的第二端，以及水箱回流端，所述第一端、所述第二端和所述水箱回流端连通；
水泵接头，包括用于与水泵连通的第三端、用于与喷头连通的第四端，以及水泵回流端，所述第三端、所述第四端和所述水泵回流端连通；
所述水箱回流端与所述水泵回流端能够连通形成回流通道，在所述回流通道内设有阀体装置，所述阀体装置具有打开状态和关闭状态；
其中，在所述打开状态时，所述回流通道导通，以使所述压力式喷洒系统内的气体能够回流至所述水箱中，在所述关闭状态时，所述阀体装置封堵所述回流通道，以使所述水箱内的液体能够通过所述水泵泵向所述喷头。
本发明实施例第二方面提供一种压力式喷洒系统，包括：水箱、水泵、喷头以及接头组件；其中所述接头组件包括：
水箱接头，包括与水泵连通的第一端、与水箱连通的第二端，以及水箱回流端，所述第一端、所述第二端和所述水箱回流端连通；
水泵接头，包括与水泵连通的第三端、与喷头通过管路连通的第四端，以及水泵回流端，所述第三端、所述第四端和所述水泵回流端连通；
所述水箱回流端与所述水泵回流端能够连通形成回流通道，在所述回流通道内设有阀体装置，所述阀体装置具有打开状态和关闭状态；
其中，在所述打开状态时，所述回流通道导通，以使所述压力式喷洒系统内的气体能够回流至所述水箱中，在所述关闭状态时，所述阀体装置封堵所述回流通道，以使所述水箱内的液体能够通过所述水泵泵向所述喷头。
本发明实施例第三方面提供一种可移动平台，包括机架，以及安装于所述机架上的压力式喷洒系统，所述压力式喷洒系统包括水箱、水泵、喷头以及接头组件；其中所述接头组件包括：
水箱接头，包括与水泵连通的第一端、与水箱连通的第二端，以及水箱回流端，所述第一端、所述第二端和所述水箱回流端连通；
水泵接头，包括与水泵连通的第三端、与喷头通过管路连通的第四端，以及水泵回流端，所述第三端、所述第四端和所述水泵回流端连通；
所述水箱回流端与所述水泵回流端能够连通形成回流通道，在所述回流通道内设有阀体装置，所述阀体装置具有打开状态和关闭状态；
其中，在所述打开状态时，所述回流通道导通，以使所述压力式喷洒系统内的气体能够回流至所述水箱中，在所述关闭状态时，所述阀体装置封堵所述回流通道，以使所述水箱内的液体能够通过所述水泵泵向所述喷头。
本发明实施例提供的接头组件、压力式喷洒系统及可移动平台，通过在水箱与水泵之间设置接头组件，接头组件将水箱与水泵之间形成一回流通道，并且在回流通道内设置阀体装置，阀体装置具有打开状态和关闭状态，在打开状态时，回流通道导通，压力式喷洒系统内的气体能够回流至水箱中，在关闭状态时，阀体装置封堵回流通道，水箱内的液体能够通过水泵泵向喷头实现喷洒。本技术方案通过设置回流通道，使得压力式喷洒系统中的气泡通过该回流通道排向水箱，实现排气，保证出水前系统内压力能够达到预设出水压力，对喷洒系统的排气无需借助喷洒系统的喷头进行排气，由于排气时不经过喷头排出，而是直接排向水箱，在排气时，不会造成药液不会浪费，并且由于无需手动将每个喷头的压力开关打开排气，而仅仅需要将水箱与水泵之间的回流通道打开即可实现排气，提高了操作和喷洒效率，改善了用户体验。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附 图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的接头组件与水泵的结构示意图；
图2为本发明一实施例提供的接头组件的阀体装置在打开状态时接头组件与水泵的剖视图；
图3为本发明一实施例提供的接头组件的阀体装置在关闭状态时接头组件与水泵的剖视图；
图4为本发明另一实施例提供的接头组件的阀体装置在关闭状态时接头组件与水泵的剖视图；
图5为本发明另一实施例提供的接头组件的阀体装置在打开状态时接头组件与水泵的剖视图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。
在通篇说明书及权利要求当中所提及的“包括”为一开放式用语，故应解释成“包括但不限定于”。“大致”是指在可接收的误差范围内，本领域技术人员能够在一定误差范围内解决所述技术问题，基本达到所述技术效果。
此外，“连接”一词在此包含任何直接及间接的连接手段。因此，若文中描述一第一装置连接于一第二装置，则代表所述第一装置可直接连接于所 述第二装置，或通过其它装置间接地连接至所述第二装置。
应当理解，本文中使用的术语“及/或、和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A1及/或B1，可以表示：单独存在A1，同时存在A1和B1，单独存在B1这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
为解决现有技术中药液漏滴的问题，现有技术中在压力式喷洒系统的喷头上设置有压力开关，压力开关是在系统液压达到预设值时才打开实现喷洒，当停喷时，压力开关自动关闭，从而防止漏滴。而当喷洒系统的各管路、泵腔中具有空气时，系统内的液压力则无法达到预设值，进而无法打开压力开关实现喷洒，每次喷洒前，操作人员需要手动将每个喷头的压力开关打开排出系统内的空气后才能正常使用，从而导致喷洒前操作繁琐、整体上降低了喷洒效率，并且由于排气的过程是从喷头实现，该过程会导致药液也跟随排出，导致不必要的药液浪费，不利于环保。
实施例一
为进一步解决上述现有技术中的技术问题，本实施例提供一种接头组件，应用于压力式喷洒系统。具体的，图1为本发明实施例提供的接头组件与水泵的结构示意图；图2为本发明实施例提供的接头组件的阀体装置在打开状态时接头组件与水泵的剖视图；图3为本发明实施例提供的接头组件的阀体装置在关闭状态时接头组件与水泵的剖视图。请参照附图1-附图3所示，本实施例的接头组件包括：水箱接头10和水泵接头20。
其中，水箱接头10包括用于与水泵100连通的第一端11、用于与水箱(图中未示出)连通的第二端12，以及水箱回流端13，第一端11、第二端12和水箱回流端13连通。
第一端11可以用于与水泵100可拆卸连接。第二端12可以用于与水箱可拆卸连接。第一端11与水泵100之间、第二端12与水箱之间均可以采用快拆结构连接，例如螺纹挤压接头连接，以实现水箱接头10的快速 拆装。
水泵接头20可以包括用于与水泵100连通的第三端21、用于与喷头(图中未示出)连通的第四端22，以及水泵回流端23，第三端21、第四端22和水泵回流端连通23。同样的，第三端21可以用于与水泵100可拆卸连接，第四端22可以用于与喷头可拆卸连接。第三端21与水泵100之间、第四端22与喷头之间均可以采用快拆结构连接，例如螺纹挤压接头连接，以实现水泵接头20的快速拆装。
值得注意的是，本实施例中所描述的“第一端”、“第二端”、“水箱回流端”、“第三端”、“第四端”、“水泵回流端”并不是指端部，而是对水箱接头10和水泵接头20内的流通通道划分。
水箱回流端13与水泵回流端23能够连通形成回流通道30，在回流通道30内设有阀体装置31，阀体装置31具有打开状态(如图2所示)和关闭状态(如图3所示)。其中，在打开状态时，回流通道30导通，以使压力式喷洒系统内的气体能够回流至水箱中，在关闭状态时，阀体装置31封堵回流通道30，以使水箱内的液体能够通过水泵100泵向喷头。
具体的，水箱回流端13与水泵回流端23可以通过快拆接头可拆卸连接，以便于水箱接头10与水泵接头20的对接和拆装。对于水箱回流端13内的通道形状并不限定为图2和图3所示直线型，水泵回流端23内的通道形状并不限定于图3所示形状L形，水箱回流端13和水泵回流端23内的通道形状可以呈直线型，L形、S形等，本实施例不做限定，只要在水箱回流端13与水泵回流端23连通后能够形成回流通道30即可。
阀体装置31可以以横向、竖向或倾斜姿态设于回流通道30中，本实施例不做限定，如图2和图3所示，阀体装置31竖向设于水泵接头20内，作为可选的，阀体装置31还可以是设于水箱接头10内。水泵回流端23与阀体装置31可以为手动阀，当在喷洒之前，操作者可以通过手动操控将阀体装置31设置为打开状态，以使得喷洒系统内的气体能够从回流通 道30排向水箱。而排气完毕，操作者可以将阀体装置31设置为关闭状态，以使得回流通道30截止，水箱内的液体只能通过水泵100的作用泵向喷头。而当阀体装置31为电控阀，例如为电磁阀，阀体装置31可以接受开启控制命令而打开将回流通道30导通，或者接受关闭控制命令而关闭，将回流通道30堵住。
本发明实施例提供的接头组件，通过在水箱与水泵之间设置接头组件，接头组件将水箱与水泵之间形成一回流通道，并且在回流通道内设置阀体装置，阀体装置具有打开状态和关闭状态，在打开状态时，回流通道导通，压力式喷洒系统内的气体能够回流至水箱中，在关闭状态时，阀体装置封堵回流通道，水箱内的液体能够通过水泵泵向喷头实现喷洒。本技术方案通过设置回流通道，使得压力式喷洒系统中的气泡通过该回流通道排向水箱，实现排气，保证出水前系统内压力能够达到预设出水压力，对喷洒系统的排气无需借助喷洒系统的喷头进行排气，由于排气时不经过喷头排出，而是直接经过回流通道排向水箱，在排气时，不会造成药液不会浪费，不也不会加重环境负担，有利于环保。并且由于是通过水箱与水泵之间的总的回流通道打开排气，无需手动将每个喷头的压力开关打开排气，提高了操作和喷洒效率，改善了用户体验。
实施例二
本实施例在实施例一的基础上，对实施例一进行进一步优化，如图2和图3所示，阀体装置31可以包括活动设置于回流通道30内的阀芯311，阀芯311能够在液压力达到预设值时，在液压力的作用下运动至阀体装置31处于打开状态，以将回流通道30导通。需要说明的是，在其他实施例中，阀体装置31还可以包括阀座，阀芯311可以滑动设于阀座内，而阀座固定在回流通道30内，此时，阀芯311运动时相对于回流通道30运动，也可以理解为阀芯311活动设于回流通道30内。
具体的，阀芯311可以滑动设于回流通道内，在该种方式下，放置有 阀体装置31的回流通道30中对应的部分为直线通道，以便于阀芯31滑动。
可以理解的是，阀芯311能够在以下两种情况下运动至打开状态：
第一种是操作者根据排气需求，对阀芯311施加外力而驱动阀芯311滑动到预设打开位置。具体的，当阀体装置31为电控阀体时，例如电磁阀时，该外力可以是电磁铁在通电时所产生的磁力，阀体装置31的电磁铁可以与开关组件和电源等组成控制电路，操作者可以操作开关组件，使得控制电路导通，电磁铁通过电流，以使得电磁铁产生磁力吸引阀芯311滑动到预设打开位置。当阀体装置31为手控阀体时，阀芯311可以被人为的外力驱动而滑动到预设打开位置。阀芯311被外力驱动的情况下，阀体装置31可以起到排气的作用，排除系统内的多余空腔，以保证系统压力能够达到预设喷洒压力，即使在喷洒系统首次使用时，系统管道里全为空气，也可以完全排尽。
第二种是阀芯311被整个喷洒系统内的液压力驱动，当液压力大于预设值时，液压力驱动阀芯311滑动至预设打开位置，此时，阀体装置31可以充当泄压阀，液压力过大时将阀体装置31顶开，系统内的液体一部分通过回流通道30回流到水箱中，从而降低系统的液压力。在本实施例中，可以对阀体装置31设置预设打开压力，以使得当液压力达到预设值时阀芯311运动至阀体装置31处于打开状态。例如，可以将预设泄压压力为0.5MPa-0.6MPa。在系统液压力达到0.5MPa-0.6Mpa之前，系统能够正常喷洒，在正常喷洒时，系统液压力可以保持在0.3MPa左右，阀体装置31不会被打开，维持在关闭状态。一旦系统液压力超过预设泄压压力，此阀体装置31就会被顶开，实现泄压，系统压力下降，保护系统，实现超压保护。
可以理解的是，无论是通过阀体装置31进行排气还是泄压，气体或药液都是通过回流通道30排向水箱，整个过程药液都不会排到系统外， 能够有效节约农药，保护环境。阀体装置31既可以充当排气阀又可以充当泄压阀，一阀两用。
需要说明的是，在排气过程中，操作员可以根据经验判断是否排气完成，排气完成时，所能听到的气流声音与排气过程中的气流声音明显不同，有经验的操作员可以准确掌握。
下面对阀体装置31的具体结构进行说明，在本实施例中，阀体装置31还可以进一步包括弹性件312和驱动件313，弹性件312设于阀芯311与驱动件313之间，驱动件313用于驱动弹性件312产生形变或恢复形变，以带动阀芯312运动。在本实施例中，弹性件312可以为轴向弹簧或弹性橡胶件，只要能实现能够沿轴向运动而产生形变，并能恢复形变即可。
具体的，如图2或图3所示，弹性件312的一端可以与阀芯311连接，弹性件312的另一端可以与驱动件313连接。这样一来，操作者可以操作驱动件313，以使得驱动件313沿弹性件312的轴向方向运动，当驱动件313沿轴向靠近阀芯311所在方向运动时，弹性件312压缩，当驱动件313沿轴向远离阀芯311所在方向运动时，弹性件312恢复形变或伸长，弹性件312的形变或恢复形变的过程可以带动阀芯311运动，阀芯311的运动实现将回流通道30打开或关闭。
作为可选的，弹性件312的一端可以与阀芯311抵接，弹性件312的另一端可以与驱动件313连接；或者，弹性件312的一端与阀芯连接，弹性件的另一端与驱动件313抵接。由于弹性件312是位于阀芯311与驱动件313之间的，因此，弹性件312无需两端均与阀芯311和驱动件313连接。
需要说明的是，由于阀芯311和弹性件312以及驱动件313均位于回流通道30内，均能够与药液接触，为了防止阀芯311和弹性件312以及驱动件313腐蚀，提高阀体装置31的使用寿命。阀芯311的材料为耐腐蚀材料；或者，阀芯311的外表面被耐腐蚀层包裹。弹性件312的材料为 耐腐蚀材料；或者，弹性件312的外表面被耐腐蚀层包裹。驱动件313的材料可以为耐腐蚀材料，或者驱动件313的外表面被耐腐蚀层包裹。其中，耐腐蚀材料可以是在钢中加入可以形成保护膜的铬、镍、铝、钛等形成耐腐蚀材料。阀芯311、弹性件312和驱动件313三者的材料可以相同也可以不同，本实施例不做限定。
进一步的，水泵回流端23具有用于与第三端21和第四端22连通的开孔231，及/或，水箱回流端13用于具有与第一端11和第二端12连通的开孔。阀芯311与回流通道30间隙配合，开孔231的截面积小于回流通道30的截面积，阀芯311用于在弹性件312的弹力作用下抵顶在开孔231处以封堵开孔231。作为另外一种可选的实施方式，阀芯311还可以伸入开孔231中，以封堵开孔231。
当水泵回流端23具有开孔231时，阀体装置31可以设于水泵接头20内，阀芯311具体用于封堵水泵接头20内的开孔231从而封堵或打开回流通道30。当水箱回流端13具有开孔时，阀体装置31可以设于水箱接头10内，阀芯311具体用于封堵水箱接头10内的开孔从而封堵或打开回流通道30。当然，阀体装置31还可以为两个，两个阀体装置31可以分别位于水泵接头20和水箱接头10内，并用于分别封堵水泵回流端23的开孔和水箱回流端13的开孔。
需要说明的是，所谓“开孔”是特指用于打开或封堵回流通道30的通孔。当水泵回流端23与水箱回流端13中仅一个中具有开孔时，例如，仅水泵回流端23具有开孔231时，水箱回流端13也是与第一端11和第二端12连通的。
以图2和图3所示，在水泵回流端23中具有开孔231。只要阀芯311未封堵住开孔231，回流通道30即导通，从水泵接头20与水箱接头10连通，系统内的气体或液体均能够通过回流通道30进入到水箱内，具体的，例如，在排气时，水泵将系统内各管路的气体抽向回流通道30，气体 先经过开孔231，而后通过阀芯311与回流通道30之间的间隙流动至整个回流通道30内，进而进入至水箱中，实现排气。在泄压时，阀芯311在液压力的作用下朝远离开孔231的方向运动至打开开孔，液体先经过开孔231，而后通过阀芯311与回流通道30之间的间隙流动至整个回流通道30内，进而进入水箱中，降低系统液压力，实现泄压，保证系统安全。在正常喷洒时，由于系统内空气已经排出，系统能够达到预设喷洒压力，并且系统液压力小于预设泄压压力，阀芯311不会由于液压力而顶开，阀芯311封堵住开孔231，水泵100将水箱中的药液通过水箱接头10从水箱中泵出，并经过水泵接头20泵向喷头，实现喷洒。
通过阀芯311与开孔231的配合与否来实现回流通道30的导通或截止，只要阀芯311未能完全封堵住开孔231，即可实现回流通道30的导通，特别的，一旦系统液压力达到预设泄压压力值时，能够立即打开开孔231，其反应灵敏，动作迅速，能够有效提高用户体验，提高系统安全性。
实施例三
本实施例在实施例二的基础上，进一步的，阀芯311上用于与开孔231接触的一端可以具有用于密封封堵开孔231的弹性密封件3111。该弹性密封件3111可以为橡胶件，硅胶件等，通过弹性密封件3111封堵开孔231，可以使得阀芯311能够有效密封开孔231。能够保证在正常喷洒时，药液不会通过回流通道30进入水箱中，能够维持系统喷洒压力，提高系统可靠性。
弹性密封件3111可以贴设于阀芯311的端面上；具体可以采用粘结剂将弹性密封件3111贴设于阀芯311的端面上。或者，如图2或图3所示，阀芯311上具有用于容纳弹性密封件3111的凹槽，弹性密封件3111嵌入凹槽中。弹性密封件3111可以与凹槽的侧壁通过粘结剂粘接，或者，在成型时，阀芯311可以与弹性密封件3111一体注塑成型，阀芯311可作为嵌件与弹性密封件3111结合，工艺简单，成本低廉。
另外，作为其他的可选方式，阀芯311可以整个为弹性密封件3111，例如，阀芯311为橡胶件，其本身具有耐腐蚀的效果，且能够在弹性件312的作用下有效封堵住开孔231。
需要说明的是，对于阀芯311伸入开孔231中以密封开孔231的方式，阀芯311的侧壁上或者开孔231的侧壁上可以设置弹性密封件，为保证阀芯311能有效封堵住开孔231并能够顺畅地从开孔231中脱出，需要合理设计弹性密封件的弹力。
实施例四
本实施例在实施例二或实施例三的基础上，进一步的，驱动件313可以具有极限驱动位置，当驱动件313处于极限驱动位置时，弹性件312可以处于预设压缩位置，当液压力达到预设值时，弹性件312能够在液压力的作用下继续压缩，直至阀芯311打开开孔231以使回流通道30导通。例如，可以在驱动件313的运动方向上设置一个限位结构，以限制驱动件313的到达极限驱动位置后继续运动，可以预先设置驱动件313极限位置与弹性件312的压缩量的对应关系。而弹性件312不同的压缩量具有不同的弹性势能，当驱动件313达到极限驱动位置后，弹性件312可以以该预设压缩量维持在封堵开孔231的位置，并且具有预设的弹性势能，此时，当系统的液压力不足以克服弹性件312的弹性势能而将阀芯311顶开时，系统维持在喷洒状态，而当系统的液压力达到预设的泄压压力时，系统内的液压力过大而克服弹性件312的弹性势能使得弹性件312朝向远离开孔231的方向继续压缩，进而将阀芯311顶开，实现泄压。
在上述实施例中，驱动件313可以为旋钮，驱动件313可以与回流通道30螺纹连接。驱动件313可以朝向开孔231所在方向旋进，并旋进至螺纹末端或者预设的旋进位置时达到极限驱动位置。更为具体的，驱动件313可以为插入回流通道30内的凸柱，在凸柱的外表面设有外螺纹，在回流通道30的内表面设有内螺纹，两者螺接，以实现驱动件313的旋进与 旋出。或者，驱动件313可以为套设在水泵接头20的外侧壁上的筒体，筒体的内表面具有内螺纹，水泵接头20的外表面具有外螺纹，两者螺接，以实现驱动件313的旋进与旋出。旋钮的操作方式较为简单，并且，加工方便。
在其他实施例中，驱动件313可以为推拉块，驱动件313上可以具有卡扣，在驱动件313到达极限驱动位置时，驱动件313可以通过卡扣与回流通道30上预设卡接配合处配合而固定。
需要说明的是，如图2和图3所示，为便于操作者操作驱动件313，水泵接头20的水泵回流端23可以具有第一管路a和第二管路b，第一管路a与第二管路b相交并连通，第二管路b可以放置阀体装置31，从第二管路b所对应的管道的侧壁上可以引出第一管路a，第二管路b的末端可以为自由端b1，驱动件313可以设于该自由端b1，驱动件313可以包括伸入该自由端b1内的动作部3131，以及从该自由端b1露出的驱动部3132。该自由端b1可以通过驱动件313的动作部3131封堵住，而防止药液从该自由端b1流出而污染环境。
进一步的，驱动件313与回流通道30之间可以设有密封圈，以用于防止液体从驱动件313与回流通道30之间流出。具体的，密封圈可以设于第二管路b的自由端b1的内壁与驱动件313的动作部3131之间，以对该回流通道30进行径向密封，以更有效地防止液体沿轴向流出自由端b1而污染环境。
实施例五
本实施例在实施例一至实施例四中任一实施例的基础上，进一步的，回流通道30可以包括与第一端11和第二端12连通的第一回流通道30a，以及与第三端21和第四端22连通的第二回流通道30b，第一回流通道30a与第二回流通道30b相连通，且第一回流通道30a与第二回流通道30b之间具有夹角。如此一来，可以在第一回流通道30a或第二回流通道30b中 设置阀体装置31。阀芯311可以设于第一回流通道30a与第二回流通道30b的其中一个中，阀芯311的运动方向与第一回流通道30a与第二回流通道30b的其中一个的延伸方向一致。如图2或图3所示，阀芯311设于第二回流通道30b中，在其他实施例中，阀芯311可以设于第一回流通道30a中，只要能实现通过阀芯311封堵或导通回流通道30即可。
具体的，第一回流通道30a与第二回流通道30b之间的夹角可以为0°-90°中任意角度，优选的，第一回流通道30a与第二回流通道30b基本垂直，这样一来，在加工时，更为方便，并且，在使用时，也可以尽可能地减小流体在回流通道30内的流动阻力。
当基于实施例四时，水箱回流端13与第一管路a可以对接后在内部形成第一回流通道30a，第二回流通道30b可以位于第二管路b中，水箱接头10与水泵接头20可以可拆卸连接，具体的，水箱回流端13与第一管路a可以通过快拆接头可拆卸连接，以便于对水箱接头10与水泵接头20组装和维护。
实施例六
本实施例基于实施例五，提供另一种阀芯311打开或关闭回流通道30的实施方式，阀芯311除了可以通过打开或封堵开孔231的方式来使得回流通道30在打开状态和关闭状态时间切换之外，还可以通过以下实施方式实现：
具体的，图4为本发明另一实施例提供的接头组件的阀体装置在关闭状态时接头组件与水泵的剖视图；图5为本发明另一实施例提供的接头组件的阀体装置在打开状态时接头组件与水泵的剖视图。阀芯311可以在第一回流通道30a与第二回流通道30b的其中一个中运动，阀芯311能够运动至打开第一回流通道30a与第二回流通道30b的另外一个以导通回流通道30，以及，阀芯311能够运动至封堵第一回流通道30a与第二回流通道30b的另外一个以封堵回流通道30。如图5所示，阀芯311可以设于第二回流通 道30b中，阀芯311可以位于至第一回流通道30a与第二回流通道30b的转角处，以封堵第一回流通道30a，整个回流通道30处于关闭状态。或者，如图5所示，继续下降直至打开第一回流通道30a，整个回流通道30处于打开状态。
阀体装置31打开和关闭回流通道30的方式可以有很多种，其并不限于本发明实施例中所例举的方式，本发明实施例不一一例举。
实施例七
本实施例提供一种压力式喷洒系统，包括水箱、水泵100、喷头以及接头组件，接头组件应用于压力式喷洒系统。具体的，请参照附图1-附图3所示，其中，接头组件包括：水箱接头10和水泵接头20。
其中，水箱接头10包括用于与水泵100连通的第一端11、用于与水箱(图中未示出)连通的第二端12，以及水箱回流端13，第一端11、第二端12和水箱回流端13连通。
水泵接头20可以包括用于与水泵100连通的第三端21、用于与喷头(图中未示出)连通的第四端22，以及水泵回流端23，第三端21、第四端22和水泵回流端连通23。水箱回流端13与水泵回流端23能够连通形成回流通道30，在回流通道30内设有阀体装置31，阀体装置31具有打开状态(如图2所示)和关闭状态(如图3所示)。其中，在打开状态时，回流通道30导通，以使压力式喷洒系统内的气体能够回流至水箱中，在关闭状态时，阀体装置31封堵回流通道30，以使水箱内的液体能够通过水泵100泵向喷头。
本发明实施例提供的喷洒系统，通过在水箱与水泵之间设置接头组件，接头组件将水箱与水泵之间形成一回流通道，并且在回流通道内设置阀体装置，阀体装置具有打开状态和关闭状态，在打开状态时，回流通道导通，压力式喷洒系统内的气体能够回流至水箱中，在关闭状态时，阀体装置封堵回流通道，水箱内的液体能够通过水泵泵向喷头实现喷洒。本技 术方案通过设置回流通道，使得压力式喷洒系统中的气泡通过该回流通道排向水箱，实现排气，保证出水前系统内压力能够达到预设出水压力，对喷洒系统的排气无需借助喷洒系统的喷头进行排气，由于排气时不经过喷头排出，而是直接经过回流通道排向水箱，在排气时，不会造成药液不会浪费，不也不会加重环境负担，有利于环保。并且由于是通过水箱与水泵之间的总的回流通道打开排气，无需手动将每个喷头的压力开关打开排气，提高了操作和喷洒效率，改善了用户体验。
本实施例中的接头组件的结构与功能与实施例一相同，具体可以参照实施例一的描述，在此不再赘述。
实施例八
本实施例在实施例七的基础上，对实施例七进行进一步优化，如图2和图3所示，阀体装置31可以包括活动设置于回流通道30内的阀芯311，阀芯311能够在液压力达到预设值时，在液压力的作用下运动至阀体装置31处于打开状态，以将回流通道30导通。
下面对阀体装置31的具体结构进行说明，在本实施例中，阀体装置31还可以进一步包括弹性件312和驱动件313，弹性件312设于阀芯311与驱动件313之间，驱动件313用于驱动弹性件312产生形变或恢复形变，以带动阀芯312运动。在本实施例中，弹性件312可以为轴向弹簧或弹性橡胶件，只要能实现能够沿轴向运动而产生形变，并能恢复形变即可。
具体的，如图2或图3所示，弹性件312的一端可以与阀芯311连接，弹性件312的另一端可以与驱动件313连接。这样一来，操作者可以操作驱动件313，以使得驱动件313沿弹性件312的轴向方向运动，当驱动件313沿轴向靠近阀芯311所在方向运动时，弹性件312压缩，当驱动件313沿轴向远离阀芯311所在方向运动时，弹性件312恢复形变或伸长，弹性件312的形变或恢复形变的过程可以带动阀芯311运动，阀芯311的运动实现将回流通道30打开或关闭。
作为可选的，弹性件312的一端可以与阀芯311抵接，弹性件312的另一端可以与驱动件313连接；或者，弹性件312的一端与阀芯连接，弹性件的另一端与驱动件313抵接。由于弹性件312是位于阀芯311与驱动件313之间的，因此，弹性件312无需两端均与阀芯311和驱动件313连接。
需要说明的是，由于阀芯311和弹性件312以及驱动件313均位于回流通道30内，均能够与药液接触，为了防止阀芯311和弹性件312以及驱动件313腐蚀，提高阀体装置31的使用寿命。阀芯311的材料为耐腐蚀材料；或者，阀芯311的外表面被耐腐蚀层包裹。弹性件312的材料为耐腐蚀材料；或者，弹性件312的外表面被耐腐蚀层包裹。驱动件313的材料可以为耐腐蚀材料，或者驱动件313的外表面被耐腐蚀层包裹。进一步的，水泵回流端23具有用于与第三端21和第四端22连通的开孔231，及/或，水箱回流端13用于具有与第一端11和第二端12连通的开孔。阀芯311与回流通道30间隙配合，开孔231的截面积小于回流通道30的截面积，阀芯311用于在弹性件312的弹力作用下抵顶在开孔231处以封堵开孔231。作为另外一种可选的实施方式，阀芯311还可以伸入开孔231中，以封堵开孔231。
本实施例中的接头组件的结构与功能与实施例二相同，具体可以参照实施例二的描述，在此不再赘述。
实施例九
本实施例在实施例八的基础上，进一步的，阀芯311上用于与开孔231接触的一端可以具有用于密封封堵开孔231的弹性密封件3111。弹性密封件3111可以贴设于阀芯311的端面上；具体可以采用粘结剂将弹性密封件3111贴设于阀芯311的端面上。或者，如图2或图3所示，阀芯311上具有用于容纳弹性密封件3111的凹槽，弹性密封件3111嵌入凹槽中。另外，作为其他的可选方式，阀芯311可以整个为弹性密封件3111，
本实施例中的接头组件的结构与功能与实施例三相同，具体可以参照实施例三的描述，在此不再赘述。
实施例十
本实施例在实施例八或实施例九的基础上，进一步的，驱动件313可以具有极限驱动位置，当驱动件313处于极限驱动位置时，弹性件312可以处于预设压缩位置，当液压力达到预设值时，弹性件312能够在液压力的作用下继续压缩，直至阀芯311打开开孔231以使回流通道30导通。在上述实施例中，驱动件313可以为旋钮，驱动件313可以与回流通道30螺纹连接。进一步的，驱动件313与回流通道30之间可以设有密封圈，以用于防止液体从驱动件313与回流通道30之间流出。本实施例中的接头组件的结构与功能与实施例四相同，具体可以参照实施例四的描述，在此不再赘述。
实施例十一
本实施例在实施例七至实施例十中任一实施例的基础上，进一步的，回流通道30可以包括与第一端11和第二端12连通的第一回流通道30a，以及与第三端21和第四端22连通的第二回流通道30b，第一回流通道30a与第二回流通道30b相连通，且第一回流通道30a与第二回流通道30b之间具有夹角。具体的，第一回流通道30a与第二回流通道30b之间的夹角可以为0°-90°中任意角度，优选的，第一回流通道30a与第二回流通道30b基本垂直。
本实施例中的接头组件的结构与功能与实施例五相同，具体可以参照实施例五的描述，在此不再赘述。
实施例十二
本实施例基于实施例十一，提供另一种阀芯311打开或关闭回流通道30的实施方式，阀芯311除了可以通过打开或封堵开孔231的方式来使得回流通道30在打开状态和关闭状态时间切换之外，还可以通过以下实施 方式实现：
具体的，图4为本发明另一实施例提供的接头组件的阀体装置在关闭状态时接头组件与水泵的剖视图；图5为本发明另一实施例提供的接头组件的阀体装置在打开状态时接头组件与水泵的剖视图。阀芯311可以在第一回流通道30a与第二回流通道30b的其中一个中运动，阀芯311能够运动至打开第一回流通道30a与第二回流通道30b的另外一个以导通回流通道30，以及，阀芯311能够运动至封堵第一回流通道30a与第二回流通道30b的另外一个以封堵回流通道30。
本实施例中的接头组件的结构与功能与实施例六相同，具体可以参照实施例六的描述，在此不再赘述。
实施例十三
本实施例提供一种可移动平台，本实施例的可移动平台可以包括农业植保无人机、农药喷洒车、人力喷洒装置。包括机架，以及安装于机架上的压力式喷洒系统，压力式喷洒系统包括水箱、水泵100、喷头以及接头组件，接头组件应用于压力式喷洒系统。具体的，请参照附图1-附图3所示，其中，接头组件包括：水箱接头10和水泵接头20。
其中，水箱接头10包括用于与水泵100连通的第一端11、用于与水箱(图中未示出)连通的第二端12，以及水箱回流端13，第一端11、第二端12和水箱回流端13连通。
水泵接头20可以包括用于与水泵100连通的第三端21、用于与喷头(图中未示出)连通的第四端22，以及水泵回流端23，第三端21、第四端22和水泵回流端连通23。水箱回流端13与水泵回流端23能够连通形成回流通道30，在回流通道30内设有阀体装置31，阀体装置31具有打开状态(如图2所示)和关闭状态(如图3所示)。其中，在打开状态时，回流通道30导通，以使压力式喷洒系统内的气体能够回流至水箱中，在关闭状态时，阀体装置31封堵回流通道30，以使水箱内的液体能够通过 水泵100泵向喷头。
本发明实施例提供的可移动平台，具有压力式喷洒系统，压力式喷洒系统中通过在水箱与水泵之间设置接头组件，接头组件将水箱与水泵之间形成一回流通道，并且在回流通道内设置阀体装置，阀体装置具有打开状态和关闭状态，在打开状态时，回流通道导通，压力式喷洒系统内的气体能够回流至水箱中，在关闭状态时，阀体装置封堵回流通道，水箱内的液体能够通过水泵泵向喷头实现喷洒。本技术方案通过设置回流通道，使得压力式喷洒系统中的气泡通过该回流通道排向水箱，实现排气，保证出水前系统内压力能够达到预设出水压力，对喷洒系统的排气无需借助喷洒系统的喷头进行排气，由于排气时不经过喷头排出，而是直接经过回流通道排向水箱，在排气时，不会造成药液不会浪费，不也不会加重环境负担，有利于环保。并且由于是通过水箱与水泵之间的总的回流通道打开排气，无需手动将每个喷头的压力开关打开排气，提高了操作和喷洒效率，改善了用户体验。
本实施例中的接头组件的结构与功能与实施例一相同，具体可以参照实施例一的描述，在此不再赘述。
实施例十四
本实施例在实施例十三的基础上，对实施例十三进行进一步优化，如图2和图3所示，阀体装置31可以包括活动设置于回流通道30内的阀芯311，阀芯311能够在液压力达到预设值时，在液压力的作用下运动至阀体装置31处于打开状态，以将回流通道30导通。
下面对阀体装置31的具体结构进行说明，在本实施例中，阀体装置31还可以进一步包括弹性件312和驱动件313，弹性件312设于阀芯311与驱动件313之间，驱动件313用于驱动弹性件312产生形变或恢复形变，以带动阀芯312运动。在本实施例中，弹性件312可以为轴向弹簧或弹性橡胶件，只要能实现能够沿轴向运动而产生形变，并能恢复形变即可。
具体的，如图2或图3所示，弹性件312的一端可以与阀芯311连接，弹性件312的另一端可以与驱动件313连接。这样一来，操作者可以操作驱动件313，以使得驱动件313沿弹性件312的轴向方向运动，当驱动件313沿轴向靠近阀芯311所在方向运动时，弹性件312压缩，当驱动件313沿轴向远离阀芯311所在方向运动时，弹性件312恢复形变或伸长，弹性件312的形变或恢复形变的过程可以带动阀芯311运动，阀芯311的运动实现将回流通道30打开或关闭。
作为可选的，弹性件312的一端可以与阀芯311抵接，弹性件312的另一端可以与驱动件313连接；或者，弹性件312的一端与阀芯连接，弹性件的另一端与驱动件313抵接。由于弹性件312是位于阀芯311与驱动件313之间的，因此，弹性件312无需两端均与阀芯311和驱动件313连接。
需要说明的是，由于阀芯311和弹性件312以及驱动件313均位于回流通道30内，均能够与药液接触，为了防止阀芯311和弹性件312以及驱动件313腐蚀，提高阀体装置31的使用寿命。阀芯311的材料为耐腐蚀材料；或者，阀芯311的外表面被耐腐蚀层包裹。弹性件312的材料为耐腐蚀材料；或者，弹性件312的外表面被耐腐蚀层包裹。驱动件313的材料可以为耐腐蚀材料，或者驱动件313的外表面被耐腐蚀层包裹。进一步的，水泵回流端23具有用于与第三端21和第四端22连通的开孔231，及/或，水箱回流端13用于具有与第一端11和第二端12连通的开孔。阀芯311与回流通道30间隙配合，开孔231的截面积小于回流通道30的截面积，阀芯311用于在弹性件312的弹力作用下抵顶在开孔231处以封堵开孔231。作为另外一种可选的实施方式，阀芯311还可以伸入开孔231中，以封堵开孔231。
本实施例中的接头组件的结构与功能与实施例二相同，具体可以参照实施例二的描述，在此不再赘述。
实施例十五
本实施例在实施例十四的基础上，进一步的，阀芯311上用于与开孔231接触的一端可以具有用于密封封堵开孔231的弹性密封件3111。弹性密封件3111可以贴设于阀芯311的端面上；具体可以采用粘结剂将弹性密封件3111贴设于阀芯311的端面上。或者，如图2或图3所示，阀芯311上具有用于容纳弹性密封件3111的凹槽，弹性密封件3111嵌入凹槽中。另外，作为其他的可选方式，阀芯311可以整个为弹性密封件3111，
本实施例中的接头组件的结构与功能与实施例三相同，具体可以参照实施例三的描述，在此不再赘述。
实施例十六
本实施例在实施例十四或实施例十五的基础上，进一步的，驱动件313可以具有极限驱动位置，当驱动件313处于极限驱动位置时，弹性件312可以处于预设压缩位置，当液压力达到预设值时，弹性件312能够在液压力的作用下继续压缩，直至阀芯311打开开孔231以使回流通道30导通。在上述实施例中，驱动件313可以为旋钮，驱动件313可以与回流通道30螺纹连接。进一步的，驱动件313与回流通道30之间可以设有密封圈，以用于防止液体从驱动件313与回流通道30之间流出。本实施例中的接头组件的结构与功能与实施例四相同，具体可以参照实施例四的描述，在此不再赘述。
实施例十七
本实施例在实施例十三至实施例十六中任一实施例的基础上，进一步的，回流通道30可以包括与第一端11和第二端12连通的第一回流通道30a，以及与第三端21和第四端22连通的第二回流通道30b，第一回流通道30a与第二回流通道30b相连通，且第一回流通道30a与第二回流通道30b之间具有夹角。具体的，第一回流通道30a与第二回流通道30b之间的夹角可以为0°-90°中任意角度，优选的，第一回流通道30a与第二回 流通道30b基本垂直。
本实施例中的接头组件的结构与功能与实施例五相同，具体可以参照实施例五的描述，在此不再赘述。
实施例十八
本实施例基于实施例十七，提供另一种阀芯311打开或关闭回流通道30的实施方式，阀芯311除了可以通过打开或封堵开孔231的方式来使得回流通道30在打开状态和关闭状态时间切换之外，还可以通过以下实施方式实现：
具体的，图4为本发明另一实施例提供的接头组件的阀体装置在关闭状态时接头组件与水泵的剖视图；图5为本发明另一实施例提供的接头组件的阀体装置在打开状态时接头组件与水泵的剖视图。阀芯311可以在第一回流通道30a与第二回流通道30b的其中一个中运动，阀芯311能够运动至打开第一回流通道30a与第二回流通道30b的另外一个以导通回流通道30，以及，阀芯311能够运动至封堵第一回流通道30a与第二回流通道30b的另外一个以封堵回流通道30。
本实施例中的接头组件的结构与功能与实施例六相同，具体可以参照实施例六的描述，在此不再赘述。
在本发明所提供的几个实施例中，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。在不冲突的情况下，上述实施例可以相互组合。

Claims (63)

  1. 一种接头组件，应用于压力式喷洒系统，其特征在于，包括：
    水箱接头，包括用于与水泵连通的第一端、用于与水箱连通的第二端，以及水箱回流端，所述第一端、所述第二端和所述水箱回流端连通；
    水泵接头，包括用于与水泵连通的第三端、用于与喷头连通的第四端，以及水泵回流端，所述第三端、所述第四端和所述水泵回流端连通；
    所述水箱回流端与所述水泵回流端能够连通形成回流通道，在所述回流通道内设有阀体装置，所述阀体装置具有打开状态和关闭状态；
    其中，在所述打开状态时，所述回流通道导通，以使所述压力式喷洒系统内的气体能够回流至所述水箱中，在所述关闭状态时，所述阀体装置封堵所述回流通道，以使所述水箱内的液体能够通过所述水泵泵向所述喷头。
  2. 根据权利要求1所述的接头组件，其特征在于，
    所述第一端用于与水泵可拆卸连接；
    及/或，所述第二端用于与水箱可拆卸连接；
    及/或，所述第三端用于与水泵可拆卸连接；
    及/或，所述第四端用于与喷头可拆卸连接。
  3. 根据权利要求1所述的接头组件，其特征在于，所述水箱回流端与所述水泵回流端通过快拆接头可拆卸连接。
  4. 根据权利要求1所述的接头组件，其特征在于，所述阀体装置包括活动设置于所述回流通道内的阀芯，所述阀芯能够在液压力达到预设值时，在液压力的作用下运动，使所述阀体装置为打开状态，以将所述回流通道导通。
  5. 根据权利要求4所述的接头组件，其特征在于，所述阀体装置还包括弹性件和驱动件，所述弹性件设于所述阀芯与所述驱动件之间，所述驱动件用于驱动所述弹性件产生形变或恢复形变，以带动所述阀芯运动。
  6. 根据权利要求5所述的接头组件，其特征在于，所述弹性件的一端与所述阀芯连接，所述弹性件的另一端与所述驱动件连接；
    或者，所述弹性件的一端与所述阀芯抵接，所述弹性件的另一端与所述驱动件连接；
    或者，所述弹性件的一端与所述阀芯连接，所述弹性件的另一端与所述驱动件抵接。
  7. 根据权利要求5所述的接头组件，其特征在于，所述水泵回流端用于与所述第三端和所述第四端连通处的开孔；
    及/或，所述水箱回流端具有用于与所述第一端和所述第二端连通的开孔；
    所述阀芯与所述回流通道间隙配合，所述开孔的截面积小于所述回流通道的截面积，所述阀芯用于在所述弹性件的弹力作用下抵顶在所述开孔处以封堵所述开孔。
  8. 根据权利要求7所述的接头组件，其特征在于，所述驱动件具有极限驱动位置，当所述驱动件处于所述极限驱动位置时，所述弹性件处于预设压缩位置，当所述液压力达到预设值时，所述弹性件能够在所述液压力的作用下继续压缩，直至所述阀芯打开所述开孔以使所述回流通道导通。
  9. 根据权利要求7所述的接头组件，其特征在于，所述阀芯上用于与所述开孔接触的一端具有用于密封封堵所述开孔的弹性密封件。
  10. 根据权利要求9所述的接头组件，其特征在于，所述弹性密封件贴设于所述阀芯的端面上；
    或者，所述阀芯上具有用于容纳所述弹性密封件的凹槽，所述弹性密封件嵌入所述凹槽中。
  11. 根据权利要求4所述的接头组件，其特征在于，所述阀芯为弹性密封件。
  12. 根据权利要求5所述的接头组件，其特征在于，所述驱动件为旋钮，所述驱动件与所述回流通道螺纹连接。
  13. 根据权利要求12所述的接头组件，其特征在于，所述驱动件与所述回流通道之间设有密封圈，以用于防止所述液体从所述驱动件与所述回流通道之间流出。
  14. 根据权利要求5所述的接头组件，其特征在于，所述弹性件为轴向弹簧或弹性橡胶件。
  15. 根据权利要求1所述的接头组件，其特征在于，所述回流通道包括与所述第一端和第二端连通的第一回流通道，以及与所述第三端和第四端连通的第二回流通道，所述第一回流通道与第二回流通道相连通，且所述第一回流通道与第二回流通道之间具有夹角。
  16. 根据权利要求15所述的接头组件，其特征在于，所述第一回流通道与所述第二回流通道基本垂直。
  17. 根据权利要求15所述的接头组件，其特征在于，所述阀芯设于所述第一回流通道与第二回流通道的其中一个中，所述阀芯的运动方向与所述第一回流通道与第二回流通道的其中一个的延伸方向一致。
  18. 根据权利要求17所述的接头组件，其特征在于，所述阀芯在所述第一回流通道与第二回流通道的其中一个中运动，所述阀芯能够运动至打开所述第一回流通道与第二回流通道的另外一个以导通所述回流通道，以及，所述阀芯能够运动至封堵所述第一回流通道与第二回流通道的另外一个以封堵所述回流通道。
  19. 根据权利要求1所述的接头组件，其特征在于，所述阀芯的材料为耐腐蚀材料；或者，所述阀芯的外表面被耐腐蚀层包裹。
  20. 根据权利要求5所述的接头组件，其特征在于，所述弹性件的材料为耐腐蚀材料；或者，所述弹性件的外表面被耐腐蚀层包裹。
  21. 一种压力式喷洒系统，其特征在于，包括：水箱、水泵、喷头以 及接头组件；其中所述接头组件包括：
    水箱接头，包括与水泵连通的第一端、与水箱连通的第二端，以及水箱回流端，所述第一端、所述第二端和所述水箱回流端连通；
    水泵接头，包括与水泵连通的第三端、与喷头通过管路连通的第四端，以及水泵回流端，所述第三端、所述第四端和所述水泵回流端连通；
    所述水箱回流端与所述水泵回流端能够连通形成回流通道，在所述回流通道内设有阀体装置，所述阀体装置具有打开状态和关闭状态；
    其中，在所述打开状态时，所述回流通道导通，以使所述压力式喷洒系统内的气体能够回流至所述水箱中，在所述关闭状态时，所述阀体装置封堵所述回流通道，以使所述水箱内的液体能够通过所述水泵泵向所述喷头。
  22. 根据权利要求21所述的压力式喷洒系统，其特征在于，所述喷头内部形成有喷液通道，在所述喷液通道内设有喷头阀体装置，所述喷头阀体装置能够在液压力作用下打开所述喷液通道，且在液压力消失时关闭所述喷液通道。
  23. 根据权利要求21所述的压力式喷洒系统，其特征在于，所述第一端与水泵可拆卸连接；
    及/或，所述第二端与水箱可拆卸连接；
    及/或，所述第三端与水泵可拆卸连接；
    及/或，所述第四端与喷头可拆卸连接。
  24. 根据权利要求21所述的压力式喷洒系统，其特征在于，所述水箱回流端与所述水泵回流端通过快拆接头可拆卸连接。
  25. 根据权利要求21所述的压力式喷洒系统，其特征在于，所述阀体装置包括活动设置于所述回流通道内的阀芯，所述阀芯能够在液压力达到预设值时，在液压力的作用下运动，使所述阀体装置为打开状态，以将所述回流通道导通。
  26. 根据权利要求25所述的压力式喷洒系统，其特征在于，所述阀体装置还包括弹性件和驱动件，所述弹性件设于所述阀芯与所述驱动件之间，所述驱动件用于驱动所述弹性件产生形变或恢复形变，以带动所述阀芯运动。
  27. 根据权利要求26所述的压力式喷洒系统，其特征在于，所述弹性件的一端与所述阀芯连接，所述弹性件的另一端与所述驱动件连接；
    或者，所述弹性件的一端与所述阀芯抵接，所述弹性件的另一端与所述驱动件连接；
    或者，所述弹性件的一端与所述阀芯连接，所述弹性件的另一端与所述驱动件抵接。
  28. 根据权利要求26所述的压力式喷洒系统，其特征在于，所述水泵回流端具有用于与所述第三端和所述第四端连通的开孔，和/或，所述水箱回流端具有用于与所述第一端和所述第二端连通的开孔；
    所述阀芯与所述回流通道间隙配合，所述开孔的截面积小于所述回流通道的截面积，所述阀芯用于在所述弹性件的弹力作用下抵顶在所述开孔处以封堵所述开孔。
  29. 根据权利要求28所述的压力式喷洒系统，其特征在于，所述驱动件具有极限驱动位置，当所述驱动件处于所述极限驱动位置时，所述弹性件处于预设压缩位置，当所述液压力达到预设值时，所述弹性件能够在所述液压力的作用下继续压缩，直至所述阀芯打开所述开孔以使所述回流通道导通。
  30. 根据权利要求28所述的压力式喷洒系统，其特征在于，所述阀芯上用于与所述开孔接触的一端具有用于密封封堵所述开孔的弹性密封件。
  31. 根据权利要求30所述的压力式喷洒系统，其特征在于，所述弹性密封件贴设于所述阀芯的端面上；
    或者，所述阀芯上具有用于容纳所述弹性密封件的凹槽，所述弹性密封件嵌入所述凹槽中。
  32. 根据权利要求29所述的压力式喷洒系统，其特征在于，所述阀芯为弹性密封件。
  33. 根据权利要求26所述的压力式喷洒系统，其特征在于，所述驱动件为旋钮，所述驱动件与所述回流通道螺纹连接。
  34. 根据权利要求33所述的压力式喷洒系统，其特征在于，所述驱动件与所述回流通道之间设有密封圈，以用于防止所述液体从所述驱动件与所述回流通道之间流出。
  35. 根据权利要求26所述的压力式喷洒系统，其特征在于，所述弹性件为轴向弹簧或弹性橡胶件。
  36. 根据权利要求21所述的压力式喷洒系统，其特征在于，所述回流通道包括与所述第一端和第二端连通的第一回流通道，以及与所述第三端和第四端连通的第二回流通道，所述第一回流通道与第二回流通道相连通，且所述第一回流通道与第二回流通道之间具有夹角。
  37. 根据权利要求36所述的压力式喷洒系统，其特征在于，所述第一回流通道与所述第二回流通道基本垂直。
  38. 根据权利要求36所述的压力式喷洒系统，其特征在于，所述阀芯设于所述第一回流通道与第二回流通道的其中一个中，所述阀芯的运动方向与所述第一回流通道与第二回流通道的其中一个的延伸方向一致。
  39. 根据权利要求38所述的压力式喷洒系统，其特征在于，所述阀芯在所述第一回流通道与第二回流通道的其中一个中运动，所述阀芯能够运动至打开所述第一回流通道与第二回流通道的另外一个以导通所述回流通道，以及，所述阀芯能够运动至封堵所述第一回流通道与第二回流通道的另外一个以封堵所述回流通道。
  40. 根据权利要求21所述的压力式喷洒系统，其特征在于，所述阀 芯的材料为耐腐蚀材料；或者，所述阀芯的外表面被耐腐蚀层包裹。
  41. 根据权利要求26所述的压力式喷洒系统，其特征在于，所述弹性件的材料为耐腐蚀材料；或者，所述弹性件的外表面被耐腐蚀层包裹。
  42. 一种可移动平台，其特征在于，包括机架，以及安装于所述机架上的压力式喷洒系统，所述压力式喷洒系统包括水箱、水泵、喷头以及接头组件；其中接头组件包括：
    水箱接头，包括与水泵连通的第一端、与水箱连通的第二端，以及水箱回流端，所述第一端、所述第二端和所述水箱回流端连通；
    水泵接头，包括与水泵连通的第三端、与喷头通过管路连通的第四端，以及水泵回流端，所述第三端、所述第四端和所述水泵回流端连通；
    所述水箱回流端与所述水泵回流端能够连通形成回流通道，在所述回流通道内设有阀体装置，所述阀体装置具有打开状态和关闭状态；
    其中，在所述打开状态时，所述回流通道导通，以使所述压力式喷洒系统内的气体能够回流至所述水箱中，在所述关闭状态时，所述阀体装置封堵所述回流通道，以使所述水箱内的液体能够通过所述水泵泵向所述喷头。
  43. 根据权利要求42所述的可移动平台，其特征在于，所述喷头内部形成有喷液通道，在所述喷液通道内设有喷头阀体装置，所述喷头阀体装置能够在液压力作用下打开所述喷液通道，且在液压力消失时关闭所述喷液通道。
  44. 根据权利要求42所述的可移动平台，其特征在于，所述第一端与水泵可拆卸连接；
    及/或，所述第二端与水箱可拆卸连接；
    及/或，所述第三端与水泵可拆卸连接；
    及/或，所述第四端与喷头可拆卸连接。
  45. 根据权利要求42所述的可移动平台，其特征在于，所述水箱回 流端与所述水泵回流端通过快拆接头可拆卸连接。
  46. 根据权利要求42所述的可移动平台，其特征在于，所述阀体装置包括活动设置于所述回流通道内的阀芯，所述阀芯能够在液压力达到预设值时，在液压力的作用下运动，使所述阀体装置为打开状态，以将所述回流通道导通。
  47. 根据权利要求46所述的可移动平台，其特征在于，所述阀体装置还包括弹性件和驱动件，所述弹性件设于所述阀芯与所述驱动件之间，所述驱动件用于驱动所述弹性件产生形变或恢复形变，以带动所述阀芯运动。
  48. 根据权利要求47所述的可移动平台，其特征在于，所述弹性件的一端与所述阀芯连接，所述弹性件的另一端与所述驱动件连接；
    或者，所述弹性件的一端与所述阀芯抵接，所述弹性件的另一端与所述驱动件连接；
    或者，所述弹性件的一端与所述阀芯连接，所述弹性件的另一端与所述驱动件抵接。
  49. 根据权利要求47所述的可移动平台，其特征在于，所述水泵回流端具有用于与所述第三端和所述第四端连通的开孔，和/或，所述水箱回流端具有用于与所述第一端和所述第二端连通的开孔；
    所述阀芯与所述回流通道间隙配合，所述开孔的截面积小于所述回流通道的截面积，所述阀芯用于在所述弹性件的弹力作用下抵顶在所述开孔处以封堵所述开孔。
  50. 根据权利要求49所述的可移动平台，其特征在于，所述驱动件具有极限驱动位置，当所述驱动件处于所述极限驱动位置时，所述弹性件处于预设压缩位置，当所述液压力达到预设值时，所述弹性件能够在所述液压力的作用下继续压缩，直至所述阀芯打开所述开孔以使所述回流通道导通。
  51. 根据权利要求49所述的可移动平台，其特征在于，所述阀芯上用于与所述开孔接触的一端具有用于密封封堵所述开孔的弹性密封件。
  52. 根据权利要求51所述的可移动平台，其特征在于，所述弹性密封件贴设于所述阀芯的端面上；
    或者，所述阀芯上具有用于容纳所述弹性密封件的凹槽，所述弹性密封件嵌入所述凹槽中。
  53. 根据权利要求50所述的可移动平台，其特征在于，所述阀芯为弹性密封件。
  54. 根据权利要求47所述的可移动平台，其特征在于，所述驱动件为旋钮，所述驱动件与所述回流通道螺纹连接。
  55. 根据权利要求54所述的可移动平台，其特征在于，所述驱动件与所述回流通道之间设有密封圈，以用于防止所述液体从所述驱动件与所述回流通道之间流出。
  56. 根据权利要求47所述的可移动平台，其特征在于，所述弹性件为轴向弹簧或弹性橡胶件。
  57. 根据权利要求42所述的可移动平台，其特征在于，所述回流通道包括与所述第一端和第二端连通的第一回流通道，以及与所述第三端和第四端连通的第二回流通道，所述第一回流通道与第二回流通道相连通，且所述第一回流通道与第二回流通道之间具有夹角。
  58. 根据权利要求57所述的可移动平台，其特征在于，所述第一回流通道与所述第二回流通道基本垂直。
  59. 根据权利要求57所述的可移动平台，其特征在于，所述阀芯设于所述第一回流通道与第二回流通道的其中一个中，所述阀芯的运动方向与所述第一回流通道与第二回流通道的其中一个的延伸方向一致。
  60. 根据权利要求59所述的可移动平台，其特征在于，所述阀芯在所述第一回流通道与第二回流通道的其中一个中运动，所述阀芯能够运动 至打开所述第一回流通道与第二回流通道的另外一个以导通所述回流通道，以及，所述阀芯能够运动至封堵所述第一回流通道与第二回流通道的另外一个以封堵所述回流通道。
  61. 根据权利要求42所述的可移动平台，其特征在于，所述阀芯的材料为耐腐蚀材料；或者，所述阀芯的外表面被耐腐蚀层包裹。
  62. 根据权利要求47所述的可移动平台，其特征在于，所述弹性件的材料为耐腐蚀材料；或者，所述弹性件的外表面被耐腐蚀层包裹。
  63. 根据权利要求42所述的可移动平台，其特征在于，所述可移动平台包括农业植保无人机。
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