A release type main pylon assembly for unmanned aerial vehicle and a special release mother block

Abstract

The present invention relates to a disengageable main pylon assembly and a special disengageable mother block for an unmanned aerial vehicle. The disengageable mother block comprises a mother block body, on which an on / off power-holding electromagnetic assembly, a pre-pressure ejection assembly and a liquid cavity are arranged. The on / off power-holding electromagnetic assembly is magnetic when the power is off and loses its magnetism after the power is on, and the magnetic suction surface of the on / off power-holding electromagnetic assembly faces the bottom of the mother block body; the pre-pressure ejection assembly is elastic, and an ejection elastic force is applied by an ejection head arranged thereon, and the ejection head of the pre-pressure ejection assembly faces the bottom of the mother block body; a quick-plug connection port is arranged on the liquid cavity toward the bottom of the mother block body, and a pipe interface is arranged on the side or / and the top of the liquid cavity. The main pylon assembly comprises a pylon connection module and a disengageable mother block, and the disengageable mother block is connected to the connected part through the pylon connection module. The present invention can realize the rapid plugging and unplugging of the spray hanger and the plant protection unmanned aerial vehicle, forming a strong safety guarantee for the safety of the whole unmanned aerial vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural aerial spraying slings, and particularly relates to a quick-release main hanger assembly for an unmanned aerial vehicle and a special quick-release female block. Background Art

[0002] Due to the rising labor cost in rural areas of China and the fragmented distribution of most arable land, plant protection unmanned aerial vehicles with certain maneuverability and strong regional adaptability have been widely promoted and used in recent years. However, during the operation of unmanned aerial vehicles, due to the influence of their own rotor wind fields and natural wind fields, the droplet drift is relatively serious. Especially when using herbicides, incidents of large-area phytotoxicity in adjacent different crop plots often occur, which restricts the full promotion and use of plant protection unmanned aerial vehicles. Statistics show that aerial spraying will cause 50%-75% of the liquid droplets to drift and fail to reach the target area, while only 10%-35% for ground spraying.

[0003] The flight height of a plant protection unmanned aerial vehicle is an important factor affecting the degree of droplet drift by its own rotor wind field and natural wind field. However, the adjustment of its height cannot effectively solve the problem of droplet drift during its spraying operation. Because when the unmanned aerial vehicle flies at a relatively high altitude, both the natural wind field and the turbulent wind field formed by the rotor will significantly cause droplet drift and cannot effectively deposit and adhere in the target area; when the unmanned aerial vehicle flies at a relatively low altitude, although the influence of the natural wind field can be weakened, the turbulent wind field of its own rotor will cause the crop canopy to swing violently, the droplets cannot effectively adhere and will drift, and too low a flight height will cause the unmanned aerial vehicle to encounter obstacles and crash, resulting in unnecessary losses.

[0004] Therefore, in view of one or more problems such as the loss of the whole machine or droplet drift caused by inappropriate flight height and spraying settings of the unmanned aerial vehicle, it is necessary to propose a new solution. Summary of the Invention

[0005] In view of this, the present invention aims to provide a technical solution that can solve one or more problems such as the loss of the whole machine or droplet drift caused by inappropriate flight height and spraying settings of an aerial plant protection unmanned aerial vehicle.

[0006] First of all, the present invention proposes a quick-insert quick-release female block, the quick-release female block includes a female block body, and a power-on / off holding electromagnetic component, a pre-pressure ejection component and a liquid cavity are arranged on the female block body.

[0007] The power-on / off holding electromagnetic component has magnetism when powered on or off, and loses magnetism after power-off or power-on. The magnetic suction surface of the power-on / off holding electromagnetic component faces downward of the female block body.

[0008] The pre-pressure ejection component has elasticity and applies an ejection elastic force through the ejection head arranged thereon. The ejection head of the pre-pressure ejection component faces downward of the female block body.

[0009] A quick-connect port is provided below the liquid cavity facing the main block body, and a pipe interface is provided on the side and / or above of the liquid cavity.

[0010] In the present invention, the quick-release female block is connected to the spraying hanger through the above-mentioned quick-connect type. The on / off power holding electromagnetic component is connected to the spraying hanger by virtue of magnetism when powered on, and loses magnetism after power-off or power-on. Then, the spraying hanger is ejected by means of the pre-pressure ejecting component. Therefore, the quick-release female block of the present invention can realize quick plugging and disconnection with the spraying hanger.

[0011] The on / off power holding electromagnetic component of the present invention can have magnetism when powered on and lose magnetism when powered off, or conversely, have magnetism when powered off and lose magnetism when powered on.

[0012] According to an embodiment of the present invention, the liquid cavity is a cavity opened inside the main block body or a cavity provided on a component connected to the main block body.

[0013] The liquid cavity is a cavity with a circular, square, polygonal, or elliptical cross-section, or the liquid cavity is a cavity with an irregular cross-section.

[0014] According to an embodiment of the present invention, the on / off power holding electromagnetic component includes an on / off power holding electromagnet and a circuit element. The circuit element receives an electrical signal and transmits the electrical signal to the on / off power holding electromagnet, and the on / off power holding electromagnet loses magnetism after receiving a power-off or power-on signal.

[0015] According to an embodiment of the present invention, the pre-pressure ejecting component includes a pre-pressure spring and a pre-pressure ejecting rod. One end of the pre-pressure ejecting rod abuts against the pre-pressure spring, and the other end of the pre-pressure ejecting rod is provided with the ejecting head.

[0016] The present invention also provides a quick-connect type quick-release main hanger assembly. The main hanger assembly includes a hanger connection module and the above-mentioned quick-connect type quick-release female block. The quick-connect type quick-release female block is connected to a connected component through the hanger connection module.

[0017] According to an embodiment of the present invention, the hanger connection module includes a hanger positioning and fixing clamp sleeve, a mounting and fixing ear plate, and a hanger height adjustment hanging plate. This set of components are connected in sequence. The hanger positioning and fixing clamp sleeve is fixedly connected to the connected component, and the hanger height adjustment hanging plate is connected to the quick-connect type quick-release female block.

[0018] According to an embodiment of the present invention, the hanger positioning and fixing jacket is fixedly connected to the mounting and fixing ear plate, the mounting and fixing ear plate and the hanger height adjustment hanging plate are connected at an adjustable angle, and a position adjustment gear is provided on the hanger height adjustment hanging plate.

[0019] According to an embodiment of the present invention, the main hanger assembly further includes a liquid inlet hose, one end of the liquid inlet hose is connected to the liquid cavity of the quick-insert release female block, and the other end is connected to a liquid storage chamber.

[0020] According to an embodiment of the present invention, the main hanger assembly includes a set of the quick-insert release female blocks and a corresponding set of the hanger connection modules, and the mother block bodies of the quick-insert release female blocks are connected by a connecting rod.

[0021] The quick-insert release main hanger assembly of the present invention can realize the hanging and detachment of the spraying hanger assembly. The implementation method is as follows: When the spraying hanger assembly is installed, the on / off power holding electromagnet is not powered on or is powered on and has strong magnetism. At this time, the iron suction cup and the quick-insert pipe joint in the spraying hanger assembly are pressed against the lower surface of the release female block. Under the action of the magnetic attraction force, the quick-insert joint is inserted into the liquid cavity of the release female block to realize liquid path connection, and it remains in a fitting connection state under the suction force of the magnetic suction cup. When the spraying hanger assembly encounters resistance during operation, the control system gives a signal to make the on / off power holding electromagnet powered on or powered off, the magnetic suction force of the magnetic suction cup disappears, and the spraying hanger integrating the magnetic suction cup and the quick-insert joint pops open under the elastic force of the pre-pressure ejector rod, so that the quick-insert joint is pulled out of the liquid cavity of the release female block, the spraying hanger assembly detaches, and at the same time, the liquid pump of the plant protection unmanned aerial vehicle can be controlled to close. In this way, the spraying hanger that may encounter resistance is separated from the unmanned aerial vehicle, ensuring that the fuselage of the unmanned aerial vehicle is not affected.

[0022] In summary, the quick-insert release main hanger assembly of the present invention can realize the hanging and automatic detachment of the spraying hanger assembly. Furthermore, the spraying hanger assembly of the plant protection unmanned aerial vehicle is designed into an active release structure. When the unmanned aerial vehicle encounters resistance during flight, the spraying hanger assembly can automatically detach to ensure the safety of the unmanned aerial vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 For Figure 3 Schematic diagram of an enlarged cross-section at local I of the release female block and the connecting piece in an embodiment of the present invention (where a magnetic attraction element and a quick-insert joint are connected, etc.);

[0024] Figure 2 Schematic diagram of the front view structure of the release main hanger assembly in an embodiment of the present invention;

[0025] Figure 3 Schematic diagram of the connection structure between the release main hanger assembly and the landing gear support rod of the unmanned aerial vehicle in an embodiment of the present invention;

[0026] Figure 4a Schematic top view structure diagram of a tripping main hanger assembly according to an embodiment of the present invention;

[0027] Figure 4b Schematic bottom view structure diagram of a tripping main hanger assembly according to an embodiment of the present invention;

[0028] Figure 5a is Figure 2 Schematic left view structure diagram of the right half part of a tripping main hanger assembly according to an embodiment of the present invention;

[0029] Figure 5b is Figure 2 Schematic left view structure diagram of the left half part of a tripping main hanger assembly according to an embodiment of the present invention; and

[0030] Figure 6 Flowchart of the usage method according to an embodiment of the present invention;

[0031] Explanation of the reference numerals in the drawings:

[0032] A Tripping female block, A1 Female block body, 17 Power-on / off holding electromagnetic assembly, 171 Power-on / off holding electromagnet, A11 Pre-pressure ejection assembly, pre-pressure spring 21, pre-pressure ejector rod 22, 63 Liquid cavity, hanger connection module B, 1 Hanger positioning and fixing clamp sleeve, 4 Mounting and fixing ear plate, 5 Hanger height adjustment hanging plate, liquid inlet hose 9, connecting rod 14, connector 10, iron suction cup 18, 25 Integrated mounting plate, 26 Quick connector;

[0033] W2 Landing gear support rod. Detailed implementation manners

[0034] The following will describe in detail the preferred embodiments of the present invention with reference to the accompanying drawings, so as to more clearly understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not limitations on the scope of the present invention, but only to illustrate the essential spirit of the technical solution of the present invention.

[0035] As Figure 1 shown, the present invention provides a tripping female block A, the tripping female block includes a female block body A1, and the female block body A1 is provided with a power-on / off holding electromagnetic assembly 17, a pre-pressure ejection assembly A11 and a liquid cavity 63. Other components, such as a spraying sling assembly, can be magnetically connected below the tripping female block A.

[0036] The positional relationship among the power-on / off holding electromagnetic assembly 17, the pre-pressure ejection assembly A11 and the liquid cavity 63 is not particularly limited and can be arranged in the manner shown in Figure 4b or other manners.

[0037] The power-on / off holding electromagnetic component 17 has magnetism when powered off or on, and loses magnetism after being powered on or off. The magnetic attracting surface of the power-on / off holding electromagnetic component faces downward of the mother block body.

[0038] The pre-pressure ejecting component A11 is elastic and applies an ejecting elastic force through the ejecting head provided thereon. The ejecting head of the pre-pressure ejecting component faces downward of the mother block body.

[0039] A quick-connect port is provided at the bottom of the liquid cavity facing the mother block body, and a pipeline interface is provided on the side or / and above of the liquid cavity. The hydraulic pipeline of the spraying sling can be connected to the liquid cavity in a quick-connect manner, and the liquid cavity is connected to a liquid storage chamber such as a liquid medicine storage chamber or a liquid pump on a drone through the pipeline interface.

[0040] The present invention can connect other slings such as a spraying sling through the above-mentioned release mother block. The power-on / off holding electromagnetic component connects with the sling by virtue of magnetism, and the power-on / off holding electromagnetic component loses magnetism after being powered on or off. Then, the sling is ejected by means of the pre-pressure ejecting component. Therefore, the release mother block of the present invention can realize quick plugging and disconnection with slings such as a spraying sling.

[0041] According to an embodiment of the present invention, the liquid cavity is a cavity opened inside the mother block body or a cavity provided on a component connected to the mother block body.

[0042] As Figure 1 shown, the liquid cavity 63 is a cavity opened inside the mother block body A1.

[0043] The liquid cavity 63 is a cavity with a circular, square, polygonal or elliptical cross-section, or the liquid cavity is a cavity with an irregular cross-section.

[0044] Preferably, the liquid cavity 63 is a cavity with a circular cross-section and a counterbore.

[0045] According to an embodiment of the present invention, the power-on / off holding electromagnetic component 17 includes a power-on / off holding electromagnet 171 and a circuit element (not shown in the figure). The circuit element receives an electrical signal and transmits the electrical signal to the power-on / off holding electromagnet 171. The power-on / off holding electromagnet 171 loses magnetism after receiving a power-on or power-off signal.

[0046] The circuit element can be integrated on the mother block body by using the prior art. This content is easily known in the art and will not be elaborated here.

[0047] The magnetic design is based on being able to firmly attract the spraying sling below.

[0048] According to an embodiment of the present invention, the pre-pressure ejecting assembly A11 includes a pre-pressure spring 21 and a pre-pressure ejecting rod 22. One end of the pre-pressure ejecting rod 22 abuts against the pre-pressure spring 21, and the other end of the pre-pressure ejecting rod 22 is provided with the ejecting head.

[0049] According to an embodiment of the present invention, a chamber can be opened in the mother block body A1 to place the pre-pressure ejecting assembly A11. One end of the pre-pressure spring 21 can be abutted against the upper part of the chamber, and the pre-pressure ejecting rod 22 is placed below the pre-pressure spring 21. A sling magnetically connected to the on / off power-holding electromagnetic assembly 17 applies a pressing force to the pre-pressure ejecting assembly A11. When the magnetism of the on / off power-holding electromagnetic assembly 17 disappears, the pre-pressure ejecting assembly A11 converts the pre-pressure into an ejecting force and applies it to the sling, facilitating the separation of the sling from the drone connected above the release mother block.

[0050] Of course, one end of the pre-pressure spring 21 can also be fixed to the mother block body in other ways.

[0051] As Figure 3 shown, the present invention also provides a quick-insert release main hanger assembly. The main hanger assembly includes a hanger connection module B and the above-mentioned release mother block A. The release mother block is connected to the connected part through the hanger connection module B. According to an embodiment of the present invention, the connected part can be a drone.

[0052] The hanger connection module B can vary according to different connected parts and can be implemented by using any conventional connection structure.

[0053] As Figure 2 shown, according to an embodiment of the present invention, the hanger connection module B includes a hanger positioning and fixing clamp 1, a mounting and fixing ear plate 4, and a hanger height adjustment hanging plate 5. This group of components is connected in sequence. The hanger positioning and fixing clamp 1 is fixedly connected to the connected part, and the hanger height adjustment hanging plate 5 is connected to the release mother block A.

[0054] The above design method of the hanger connection module B can be designed according to the structure of the drone landing gear support rod W2, as Figure 3 shown.

[0055] As Figure 2 shown, according to an embodiment of the present invention, the hanger positioning and fixing clamp 1 is fixedly connected to the mounting and fixing ear plate 4, and the mounting and fixing ear plate 4 and the hanger height adjustment hanging plate 5 are connected at an adjustable angle. The hanger positioning and fixing clamp 1 can be provided with a sleeve to cooperate with the drone landing gear support rod. The number and setting method of the sleeves can be set according to the actual situation.

[0056] As Figure 4aAs shown, one side of the mounting and fixing ear plate 4 can be connected to the positioning and fixing clamping sleeve 1 by screws.

[0057] As Figure 5a shown, according to an embodiment of the present invention, the other end of the mounting and fixing ear plate 4 can be connected to the height adjustment hanging plate 5 by bolts. The mounting and fixing ear plate 4 and the height adjustment hanging plate 5 can be adjusted in angle according to actual needs. When the angles of the two pieces are appropriate, they are fixed in position by bolts.

[0058] When the release female block is connected to the mounting and fixing ear plate 4, the height adjustment hanging plate 5 and the like, the number of height adjustment hanging plates 5 can be set according to specific circumstances, such as Figure 5a 、 5b shown, each release female block and the mounting and fixing ear plate 4 can be connected by two height adjustment hanging plates 5.

[0059] According to an embodiment of the present invention, as Figure 2 shown, the other end of the mounting and fixing ear plate 4 can be pivotally connected to the height adjustment hanging plate 5. The angle between the mounting and fixing ear plate 4 and the height adjustment hanging plate 5 can be adjusted automatically according to the gravity of the object suspended below, and the mounting and fixing ear plate 4 and the height adjustment hanging plate 5 maintain a rotational connection.

[0060] The height adjustment hanging plate 5 of the hanging rack can be provided with position adjustment gears.

[0061] According to an embodiment of the present invention, as Figure 2 shown, the height adjustment hanging plate 5 of the hanging rack is provided with fastening holes at different positions. According to the different positions of the selected fastening holes, the distance between the release female block and the drone boom above can be adjusted within a certain range. Of course, other methods can also be used for position adjustment, such as a telescopic rod structure, etc.

[0062] As Figure 3 shown, according to an embodiment of the present invention, the main hanging rack assembly may further include a liquid inlet hose 9. One end of the liquid inlet hose 9 is connected to the liquid cavity 63 of the quick-release female block A, and the other end is connected to a liquid storage chamber or a liquid pump on the drone. The number and connection method of the liquid inlet hose 9 can be flexibly connected according to the situation.

[0063] The liquid inlet hose 9 makes the pipeline connection method more flexible. Of course, the liquid cavity 63 of the release female block A can also be connected to the liquid storage chamber or the liquid pump on the drone through other pipeline connection methods.

[0064] As Figure 2 、 3, as shown in FIGS. 4a and 4b, according to an embodiment of the present invention, the main hanger assembly includes a set of the quick-insert release female blocks A and a corresponding set of the hanger connection modules B, and the female block bodies of the release female blocks can be connected by a connecting rod. This design can reduce the structural and mechanical parameters of a single quick-insert release female block, and can also make the balance and stability of the overall structure better.

[0065] Preferably, according to an embodiment of the present invention, as Figure 2 , 3 , as shown in FIGS. 4a and 4b, the main hanger assembly includes two sets of the release female blocks A that are symmetric left and right. Correspondingly, there are also two sets of the hanger connection modules B that are symmetric left and right.

[0066] The release main hanger assembly of the present invention can realize the hanging and detachment of the spraying hanger assembly. The implementation method is as follows: when the spraying hanger assembly is installed, the on / off power-holding electromagnet is not powered or powered on, with strong magnetism. At this time, the magnetic suction cup and the quick-insert joint in the spraying hanger assembly are pressed against the lower surface of the release female block. Under the action of the magnetic attraction force, the quick-insert joint is inserted into the liquid cavity of the release female block to realize liquid path connection, and it is kept in a fitting connection state under the suction force of the magnetic suction cup. When the spraying hanger assembly encounters resistance during operation, the control system gives a signal to make the on / off power-holding electromagnet powered on or powered off, and the magnetic suction force of the magnetic suction cup disappears. The spraying hanger integrating the iron suction cup and the quick-insert pipe joint pops open under the elastic force of the pre-pressure ejector rod, so that the quick-insert joint is pulled out of the liquid cavity of the release female block, and the spraying hanger assembly detaches. At the same time, the liquid pump of the plant protection unmanned aerial vehicle can be controlled to close. In this way, the spraying hanger that may encounter resistance is separated from the unmanned aerial vehicle, ensuring that the fuselage of the unmanned aerial vehicle is not affected.

[0067] Of course, the release female block and the release main hanger assembly of the present invention can be applied to different occasions or fields according to actual needs, and are not limited to the field of unmanned aerial vehicle pesticide application exemplified in the present invention. The embodiments of the present invention are only illustrative.

[0068] Embodiment

[0069] Refer to Figure 1 -5, a release-type main hanger assembly for a plant protection unmanned aerial vehicle in this embodiment mainly includes left and right hanger positioning and fixing bushings 1, installation and fixing ear plates 4, hanger height adjustment hanging plates 5, left and right release female blocks I, left and right release female block connecting rods 14, liquid inlet hoses 9 and connectors 10. The fixing and connection between the components in this embodiment are mainly realized by screws and nuts, etc.

[0070] The release female block A mainly includes an on / off power-holding electromagnetic component 17, a pre-pressure spring 21, a pre-pressure ejector rod 22, and a circular counterbore liquid cavity 63. This set of components can be arranged on the female block body.

[0071] AsFigure 3 As shown, the release-type main hanging frame assembly can realize the hanging and automatic detachment of the spraying hanger assembly. The realization method is as follows Figure 6 As shown: When the spraying hanger assembly is installed, the on / off power-holding electromagnetic assembly 17 is not powered on and has strong magnetism. At this time, the integrated mounting plate 25 integrating the magnetic chuck 18 and the quick plug connector 26 in the spraying hanger assembly is pressed against the lower surface of the release female block. Under the action of the magnetic attraction force, the quick plug connector 26 is inserted into the circular counterbore liquid cavity 63 of the release female block to achieve liquid path connection, and it remains in a fitting connection state under the suction force of the iron suction cup 18. When the spraying hanger assembly encounters resistance during operation, the control system gives a signal to power on the on / off power-holding electromagnetic assembly 17, and the magnetic suction force of the magnetic chuck 18 disappears. The integrated mounting plate 25 integrating the magnetic chuck 18 and the quick plug connector 26 bounces off under the elastic force of the pre-pressure ejector rod 22, causing the quick plug connector 26 to be pulled out of the circular counterbore liquid cavity 63 of the release female block, and the spraying hanger assembly detaches. At the same time, the liquid pump of the plant protection unmanned aerial vehicle can be controlled to close, and the liquid path no longer delivers liquid to the liquid cavity of the release female block. The unmanned aerial vehicle can safely return and land. After recovering and inspecting the spraying hanger, the installation of the spraying hanger assembly can be restarted, and then the operation can be carried out again.

[0072] In summary, the quick-insert release-type main hanging frame assembly described in the embodiment of the present invention can realize the hanging and automatic detachment of the spraying hanger assembly, and further design the spraying hanger assembly of the plant protection unmanned aerial vehicle into an active release structure. When the unmanned aerial vehicle encounters resistance during flight, the spraying hanger assembly can automatically detach to ensure the safety of the unmanned aerial vehicle.

[0073] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

[0074] The above embodiments are only used to illustrate the present invention. Among them, each component and device of the embodiments can be changed. Each embodiment can be combined or deleted as needed. Not all components in the drawings are necessary settings. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments described herein. Any equivalent transformation and improvement made on the basis of the technical solution of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. A tripping mother block, characterized in that: The release mother block is a quick-insert release mother block, comprising a mother block body, on which an on / off power holding electromagnetic component, a pre-pressure ejection component and a liquid cavity are provided. The on / off power holding electromagnetic component is magnetic when the power is on or off, and loses its magnetism after the power is off or on, and the magnetic attraction surface of the on / off power holding electromagnetic component faces the bottom of the mother block body; The pre-pressure ejection assembly is elastic, and an ejection elastic force is applied through an ejection head arranged thereon, and the ejection head of the pre-pressure ejection assembly faces downwardly of the mother block body; The liquid cavity is provided with a quick-connection port at the bottom facing the mother block body, and a pipeline interface is provided at the side and / or the top of the liquid cavity; The liquid cavity is a cavity opened inside the mother block body or a cavity provided on a component connected to the mother block body; The liquid cavity is a chamber with a circular, square, polygonal or elliptical cross section, or the liquid cavity is a chamber with an irregular cross section; It also includes a liquid inlet hose, one end of which is connected to the liquid cavity of the quick-insert release mother block, and the other end of which is connected to a liquid storage chamber or a liquid pump; The tripping mother block is connected to a spray hanger assembly, and the spray hanger assembly includes a magnetic suction cup and a quick-connect connector, and the quick-connect connector is inserted into the liquid cavity of the tripping mother block to achieve liquid circuit connection; After the on / off power-on holding electromagnetic component loses its magnetism, the magnetic suction cup and the spray hanger of the quick-connect connector are ejected under the elastic force of the pre-pressure ejection component, so that the quick-connect connector is pulled out of the liquid cavity of the release mother block, the spray hanger component falls off, and at the same time, the liquid pump of the plant protection drone is controlled to be closed.

2. The tripping mother block according to claim 1, characterized in that: The on / off power holding electromagnetic assembly includes an on / off power holding electromagnet and a circuit element. The circuit element receives an electrical signal and transmits the electrical signal to the on / off power holding electromagnet. The on / off power holding electromagnet loses its magnetism after receiving a power-off or power-on signal.

3. The tripping mother block according to claim 1, characterized in that: The pre-stress ejection assembly comprises a pre-stress spring and a pre-stress ejector rod, one end of the pre-stress ejector rod abuts against the pre-stress spring, and the other end of the pre-stress ejector rod is provided with the ejection head.

4. A release main hanger assembly, characterized in that: The main hanger assembly comprises a hanger connection module and a tripping female block according to any one of claims 1 to 3, and the tripping female block is connected to a connected component via the hanger connection module.

5. The release type main hanger assembly according to claim 4, characterized in that: The rack connection module comprises a rack positioning and fixing sleeve, an installation and fixing ear plate and a rack height adjustment plate connected in sequence, the rack positioning and fixing sleeve is fixedly connected to the connected member, and the rack height adjustment plate is connected to the release mother block.

6. The release main hanger assembly according to claim 5, characterized in that: The rack positioning and fixing sleeve is fixedly connected to the mounting and fixing ear plate, the mounting and fixing ear plate and the rack height adjustment hanging plate are connected at an adjustable angle, and the rack height adjustment hanging plate is provided with a position adjustment gear.

7. The release main hanger assembly according to claim 4, characterized in that: The main hanger assembly includes a group of quick-plug-in release female blocks and a corresponding group of hanger connection modules, and the female block bodies of the quick-plug-in release female blocks are connected by connecting rods.

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