CN219623493U

CN219623493U - Three-way joint for plant protection equipment, joint assembly and plant protection unmanned equipment

Info

Publication number: CN219623493U
Application number: CN202320630467.9U
Authority: CN
Inventors: 黄伟波; 陈亮
Original assignee: Guangzhou Xaircraft Technology Co Ltd
Current assignee: Guangzhou Xaircraft Technology Co Ltd
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-09-01
Anticipated expiration: 2033-03-27

Abstract

The utility model discloses a three-way joint for plant protection equipment, a joint assembly and plant protection unmanned equipment, and relates to the technical field of fluid transmission. The three-way joint comprises a main pipe body, a first self-plugging head and a first reset piece, wherein the first self-plugging head is movably arranged in the main pipe body, when the first self-plugging head is positioned at different positions, one channel in the main pipe body is closed, the other channel is opened, different liquid transmission requirements are met, and the drip-proof effect is achieved. According to the quick-release assembly, through the assembly of the quick-release connector and the three-way connector, the two self-plugging heads can mutually prop against, so that a channel in the quick-release connector and a fluid infusion channel in the three-way pipe are communicated, and a fluid infusion function is provided. This plant protection unmanned equipment takes three way connection, when needs are to stock solution container replenishing liquid, need not to use outside independent pumping mechanism, can install quick detach on three way connection and connect, restart equipment can carry out the fluid infusion from the liquid pump of taking, fluid infusion operation convenient and fast more.

Description

Three-way joint for plant protection equipment, joint assembly and plant protection unmanned equipment

Technical Field

The utility model relates to the technical field of fluid transmission, in particular to a three-way joint, a quick-release joint and a joint assembly.

Background

In the agricultural field and some manufacturing fields, there is a need for adding liquid substances such as liquid medicine and tap water, when adding liquid substances, a certain amount of liquid is generally filled in a liquid storage container such as a liquid barrel and a liquid tank of equipment, then the liquid in the liquid storage container is sent to a target area through a liquid pump and the like, and when the liquid in the liquid storage container is used up, new liquid is poured into the liquid storage container.

Be applied to unmanned aerial vehicle in agricultural field, like unmanned aerial vehicle, unmanned vehicles etc. generally carry on the equipment stock solution container and sprinkler, export liquid to sprinkler through pumping system on the unmanned aerial vehicle, sprinkler sprays liquid such as pesticide, nutrient solution in the stock solution container to the target area. In the related art, when replenishing the liquid storage container, the cover of the liquid storage container needs to be opened to expose the opening, and then the liquid is pumped from the opening into the liquid storage container through a set of independent pumping mechanisms. The independent pumping mechanism comprises a liquid supply pipe and a pump body, wherein the liquid supply pipe is connected with the pump body, one end of the liquid supply pipe is inserted from an opening of the liquid storage container, and liquid is conveyed into the liquid storage container through the liquid supply pipe after the pump body is started. The pump body is large in size and inconvenient to carry when a user performs outdoor operation.

Disclosure of Invention

One of the purposes of the embodiments of the present utility model is: the three-way connector is provided with two pipeline communication modes, under the conventional state, the first pipe orifice is communicated with the second pipe orifice, so that a liquid supply function can be realized, and when the first self-sealing plug is pushed, the first pipe orifice is communicated with the third pipe orifice, so that a liquid adding function can be realized.

The second object of the embodiment of the utility model is that: the utility model provides a joint component, cooperation when quick detach connects and tee bend joint assembly realizes the liquid feeding function, realizes the liquid feeding function through tee bend joint when quick detach connects and tee bend joint separation.

A third object of the embodiment of the present utility model is: the unmanned plant protection equipment is provided, and the fluid infusion operation is more convenient and faster.

In order to achieve one of the above purposes, the present utility model adopts the following technical scheme:

a three-way joint, comprising:

a main tube body including a first main tube portion, a second main tube portion, and a third main tube portion; the first main pipe portion comprises a first pipe orifice, the second main pipe portion comprises a second pipe orifice, and the third main pipe portion comprises a third pipe orifice; the third main pipe part is provided with a first limiting part;

the first self-plugging head is movably arranged in the third main pipe part; the first self-plugging head is provided with a first position and a second position; when the first self-plugging head is positioned at the first position, the first self-plugging head is abutted against the first limiting part to seal the third pipe orifice, and the first pipe orifice is communicated with the second pipe orifice; when the first self-plugging head is positioned at the second position, the first self-plugging head seals a communication channel between the first pipe orifice and the second pipe orifice, and the first pipe orifice is communicated with the third pipe orifice;

A first restoring member mounted to the main pipe body; the first reset piece is used for providing an acting force for the first self-plugging head to move to a first position;

wherein the first pipe orifice is used for communicating with a liquid pump of the plant protection equipment.

Optionally, a secondary tube; the auxiliary pipe body is arranged in the main pipe body; the auxiliary pipe body comprises a first auxiliary pipe part and a second auxiliary pipe part; the first auxiliary pipe portion is spaced between the first main pipe portion and the second main pipe portion; the second auxiliary pipe part is positioned in the third main pipe part, an overflow gap is formed between the second auxiliary pipe part and the third main pipe part, and an auxiliary pipe orifice is formed at the end part of the second auxiliary pipe part;

when the first self-plugging head is positioned at the second position, the first self-plugging head seals the auxiliary pipe opening; when the first self-plugging head is positioned at the first position, the first self-plugging head opens the auxiliary pipe port, and the first main pipe part, the auxiliary pipe body, the overflow gap and the second main pipe part are communicated.

Optionally, the first self-sealing plug includes a first plug body and a first seal; the first sealing piece is arranged on one side of the first plug main body close to the third pipe orifice; when the first self-plugging head is located at the first position, the first sealing piece is contacted with the first limiting part to seal the third pipe orifice.

Optionally, the first self-sealing plug includes a first plug body and a second seal; the second sealing piece is arranged on one side, close to the auxiliary pipe body, of the first plug main body; when the first self-plugging head is positioned at the second position, the second sealing piece is in contact with the auxiliary pipe body so as to seal the auxiliary pipe opening.

Optionally, an installation groove is formed in one side, close to the auxiliary pipe body, of the first plug main body, the second sealing element is a sealing rubber block, and the second sealing element is arranged in the installation groove; when the first self-plugging head is located at the second position, the second sealing piece abuts against the end face of the auxiliary pipe body, and the second sealing piece covers the auxiliary pipe opening.

In order to achieve the second purpose, the utility model adopts the following technical scheme:

a joint assembly, comprising:

the quick-release connector and the three-way connector of the scheme;

the quick-release connector comprises a connector pipe body, a second self-plugging head and a buckling piece, wherein a first connector pipe orifice and a second connector pipe orifice are formed at two opposite sides of the connector pipe body, the second self-plugging head is arranged in the connector pipe body, and the buckling piece is connected with the connector pipe body;

The joint assembly has an assembled state; when the joint assembly is in the assembly state, the joint pipe body is sleeved with the third main pipe part, the quick-release joint is connected with the third main pipe part in a buckled mode through the buckling piece, the second self-plugging head abuts against the first self-plugging head, the first self-plugging head is kept at the second position under the action of the second self-plugging head, and the first joint pipe orifice, the second joint pipe orifice, the third pipe orifice and the first pipe orifice are communicated.

Optionally, the joint pipe body further comprises a second reset piece; the second self-plugging head is movably arranged in the joint pipe body, and the second resetting piece is arranged between the second self-plugging head and the joint pipe body; a second limiting part is arranged in the joint pipe body;

the second self-plugging head is provided with a closed position and an open position; when the self-plugging head is positioned at the closed position, the second self-plugging head is abutted against the second limiting part to seal the second joint pipe orifice; when in the open position, the first connector nozzle is communicated with the second connector nozzle;

when the joint assembly is in the assembling state, the second self-plugging head is in the opening position; the second reset piece is used for providing acting force for the second self-plugging head to move to the closed position.

Optionally, the second joint pipe orifice is used for being connected with a three-way joint;

the second self-sealing plug comprises a second plug main body and a third sealing piece; the third sealing piece is arranged on one side of the second plug main body, which is close to the second joint pipe orifice; when the second self-plugging head is positioned at the closed position, the third sealing piece abuts against the second limiting part so as to seal the second joint pipe orifice.

Optionally, the joint pipe body includes a first joint pipe portion and a second joint pipe portion, the first joint pipe orifice is formed in the first joint pipe portion, and the second joint pipe orifice is formed in the second joint pipe portion;

the first joint pipe part is used for being connected with the liquid adding pipe, and the second joint pipe part is used for being connected with the three-way joint; the diameter of the first joint pipe part is smaller than that of the second joint pipe part.

Optionally, the quick-release connector comprises a sleeve, the sleeve is arranged outside the connector pipe body, and the sleeve is movably connected with the connector pipe body;

the sleeve can move to a locking position or an unlocking position along the axial direction of the joint pipe body; when the sleeve is positioned at the locking position, the sleeve acts on the buckling piece, and the buckling piece is buckled with the third main pipe part; when the sleeve is positioned at the unlocking position, the buckling piece is separated from the third main pipe part in a buckling way.

Optionally, the quick-release connector includes a third restoring member, where the third restoring member is disposed between the sleeve and the connector body, and the third restoring member provides a force to the sleeve that is maintained in the locking position.

Optionally, the outer wall of the third main pipe part is provided with a buckling concave part, and the joint pipe body is provided with a buckling hole; at least a portion of the fastening member is embedded into the fastening hole;

the sleeve comprises a locking pipe part and an unlocking pipe part which are connected with each other, wherein a gap between the locking pipe part and the joint pipe body is a first gap, a gap between the unlocking pipe part and the joint pipe body is a second gap, and the first gap is smaller than the second gap; when the sleeve is positioned at the locking position, the buckling piece is clamped into the buckling concave part under the extrusion of the locking pipe part; when the sleeve is positioned at the unlocking position, the unlocking pipe part is positioned at one side of the buckling piece, which is away from the third main pipe part, and the buckling piece is separated from the buckling concave part.

Optionally, the connector tube body is provided with an outward protruding anti-drop protrusion, or the sleeve is provided with an inward protruding anti-drop protrusion; the first joint pipe orifice is used for being connected with a liquid supply pipe, and the second joint pipe orifice is used for being connected with a three-way joint; the anti-falling convex part is positioned at one side of the buckling piece, which is away from the first joint pipe orifice, and limits the buckling piece to fall off from the position between the sleeve and the joint pipe body.

Optionally, the first self-plugging head includes a first plug main body, a first convex column and a first sealing element, the first convex column is connected with one side of the first plug main body, which is close to the first limiting part, and the first sealing element is sleeved outside the first convex column; the first limiting part is a first gland, the first gland is connected with the third main pipe part, and the first gland is provided with a first through hole; when the first self-plugging head is positioned at the first position, the first convex column is inserted into the first through hole, and the first sealing element is clamped between the first gland and the first plugging head main body;

and/or the second self-plugging head comprises a second plug main body, a second convex column and a third sealing piece, wherein the second convex column is connected with one side, close to the second limiting part, of the second plug main body, and the third sealing piece is sleeved outside the second convex column; the second limiting part is a second gland, the second gland is connected with the joint pipe body, and the second gland is provided with a second through hole; when the second self-plugging head is located at the second position, the second convex column is inserted into the second through hole, and the third sealing piece is clamped between the second gland and the second plugging head main body.

Optionally, when the first self-plugging head includes a first plug fixture block, the first plug fixture block is provided with a first fixture block gap or a first fixture block gap is formed between adjacent first plug fixture blocks, and when the first self-plugging head is located at the second position, the third main pipe portion is communicated with the first main pipe portion through the first fixture block gap;

and/or when the second self-plugging head comprises a second plug clamping block, the second plug clamping block is provided with a second clamping block notch or a second clamping block notch is formed between the second plug clamping blocks, and when the second self-plugging head is positioned at the opening position, the first joint pipe orifice is communicated with the second joint pipe orifice through the second clamping block notch.

In order to achieve the third purpose, the utility model adopts the following technical scheme:

the unmanned plant protection equipment is characterized by comprising a liquid storage container, a liquid pump, a spraying device and the three-way joint for the unmanned plant protection equipment according to any embodiment;

the liquid storage container is connected with the liquid pump, the liquid pump is connected with the first main pipe part, and the second main pipe part is connected with the spraying device.

The beneficial effects of the utility model are as follows:

The three-way joint and the joint component can be applied to unmanned plant protection equipment or other equipment with a spraying function. After the quick-release connector is mounted to the three-way connector, the pipeline communication state of the quick-release connector can be switched, so that the equipment can be conveniently switched from an outward spraying mode to an inward liquid supplementing mode.

According to the utility model, the three-way joint is arranged in the unmanned plant protection equipment, the three-way joint is connected between the liquid storage container and the spraying device, and when the quick-release joint is not arranged on the three-way joint, liquid is pumped outwards to the spraying device through a liquid pump on the equipment to perform spraying operation. When needs are to supplement liquid to the stock solution container of plant protection unmanned aerial vehicle, install quick detach connects to three way connection, can switch three way connection's pipeline intercommunication state, inwards pump liquid to the stock solution container through the liquid pump on the equipment, carry out the fluid infusion operation, so the user need not to carry independent pumping mechanism when outdoor operation, connect quick detach to three way connection and restart the liquid pump that equipment carried on can carry out the fluid infusion, make fluid infusion operation more convenient, swift, high-efficient, reduce cost, user's use experience promotes.

Drawings

The utility model is described in further detail below with reference to the drawings and examples.

FIG. 1 is a perspective view of a quick release assembly according to the present utility model in a disassembled state;

FIG. 2 is a second perspective view of the quick release assembly of the present utility model in a disassembled state;

FIG. 3 is a perspective view of the quick release assembly of the present utility model in an assembled state;

fig. 4 is a schematic structural view of the three-way joint according to the present utility model (the first self-plugging head is located at the first position in the drawing);

FIG. 5 is a semi-sectional view of a three-way joint according to the present utility model;

FIG. 6 is a schematic view of the quick release connector according to the present utility model;

FIG. 7 is a schematic view of the quick release assembly of the present utility model in a disassembled state (arrows in the drawing indicate liquid supply waterways);

FIG. 8 is a schematic view of the quick release assembly of the present utility model in an assembled state (arrows in the drawing indicate fluid replacement waterways);

fig. 9 is an enlarged view of a portion a in fig. 8;

fig. 10 is an enlarged view of a portion B in fig. 8;

FIG. 11 a) is a state diagram of the sleeve of the present utility model in a locked position;

FIG. 11 b) is a state diagram of the sleeve of the present utility model in an unlocked position;

FIG. 12 is a schematic view of a three-way fitting;

fig. 13 is a schematic structural view of the quick release connector.

In the figure: 10. a three-way joint; 101. a first nozzle; 102. a second nozzle; 103. a third nozzle; 104. a secondary pipe orifice; 105. an overcurrent gap; 11. a main pipe body; 111. a first main pipe portion; 112. a second main pipe portion; 113. a third main pipe portion; 1131. a buckling concave part; 114. a first mounting step; 12. a first limit part; 13. a first self-plugging head; 131. a first plug body; 132. the first plug clamping block; 133. a first post; 134. a first seal; 135. a second seal; 14. a first reset member; 15. an auxiliary pipe body; 151. a first sub-pipe portion; 152. a second auxiliary pipe portion; 20. quick-release connectors; 201. a first connector nozzle; 202. a second connector orifice; 21. a joint pipe body; 211. a first joint pipe section; 212. a second joint pipe section; 2121. a second mounting step; 213. a third joint pipe section; 2131. a fastening hole; 214. an anti-falling convex part; 22. a second limit part; 23. a second self-plugging head; 231. a second plug body; 232. the second plug clamping block; 233. a second post; 234. a third seal; 24. a second reset member; 251. a sleeve; 2511. a locking tube portion; 2512. unlocking the tube portion; 2513. a guide slope; 252. a third reset member; 253. a fastening piece; 254. a fixed sleeve; 30. a mounting frame; 31. and (5) mounting holes.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "affixed" and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Referring to fig. 1 to 11, the present utility model provides a three-way joint 10, a quick release joint 20 and a joint assembly. The three-way joint 10, the quick-release joint 20 and the joint assembly are applied to plant protection equipment, which can be plant protection unmanned aerial vehicle, plant protection unmanned vehicle, fixed irrigation equipment and the like.

The joint assembly is applied to equipment with a liquid storage container, the three-way joint 10 is arranged on the equipment, and when the quick-release joint 20 is not arranged on the three-way joint 10, the liquid storage container can supply liquid to the outside; after the quick-release connector 20 is assembled with the three-way connector 10, the quick-release connector 20 and external equipment can supplement liquid to the interior of the liquid storage container.

The three-way joint 10, the quick release joint 20 and the joint assembly of the present utility model will be described below by taking the application of the three-way joint 10, the quick release joint 20 and the joint assembly to the field of plant protection unmanned equipment as an example.

The unmanned plant protection equipment comprises an equipment main body, a liquid storage container, a liquid pump, a spraying device and a three-way joint 10. The liquid storage container is used for containing liquid such as liquid medicine, and the liquid storage container can be, but is not limited to, a medicine chest. The liquid storage container is mounted on the apparatus main body, the liquid pump is connected to the liquid storage container, the first main pipe portion 111 of the three-way joint 10 is connected to the liquid pump, and the second main pipe portion 112 of the three-way joint 10 is connected to the spraying device.

The liquid pump is a bidirectional pump, the bidirectional pump is a pump with the conveying capacity of bidirectional conveying fluid, and the direction of conveying water flow is opposite to that of the driver of the bidirectional pump when the driver of the bidirectional pump rotates forwards and reversely. In this embodiment, the liquid pump is a peristaltic pump. In other embodiments, the bi-directional pump may be other water pumps, such as a three-phase electric water pump, a centrifugal water pump, and the like.

The quick release connector 20 is adapted to be mounted on the three way connector 10 for switching channels in the three way connector 10 and for connecting a water inlet pipe. The three-way joint 10 and the quick release joint 20 are designed to block the waterway under the action of the resetting piece.

When the three-way connector 10 of the plant protection unmanned equipment is not provided with the quick-release connector 20, a liquid supply channel of the three-way connector 10 is opened, a liquid pump in the plant protection unmanned equipment rotates positively, and liquid in a liquid storage container of the plant protection unmanned equipment is sent to a spraying device through the liquid supply channel of the three-way connector 10 to perform normal aircraft spraying operation. When the liquid medicine is needed to be supplemented into the medicine chest of the plant protection unmanned equipment, one end of the quick release connector 20 is connected with the external medicine chest, the other end of the quick release connector is arranged on the third main pipe part 113 of the three-way connector 10, the liquid supplementing channel in the three-way connector 10 is opened, the regulated liquid medicine is filled in the external medicine chest, the liquid pump in the plant protection unmanned equipment is reversed, and the regulated liquid medicine in the external medicine chest is pumped into the medicine chest of the plant protection unmanned equipment through the liquid supplementing channel, so that the medicine supplementing operation is completed. The medical kit of plant protection unmanned equipment is provided with level sensor, makes the liquid pump of plant protection unmanned equipment can automatic stop the operation of drawing water after the medicine liquid reaches required dose, makes the user add medicine more intelligent.

When the first self-plugging head 13 of the three-way joint 10 is positioned at different positions, one channel in the main pipe body 11 is closed, the other channel is opened, different liquid transmission requirements are met, and the drip-proof effect is achieved. When the quick-release connector 20 is positioned at different positions, the sealing and the opening of the internal channel of the connector pipe body 21 are realized, and the liquid transmission or sealing and leakage prevention are realized.

Referring to fig. 1 to 13, specific structures of the three-way joint 10 and the quick release joint 20 will be described.

Referring to fig. 1 to 5, the three-way joint 10 includes a main pipe body 11, a first self-plugging head 13, and a first reset member 14.

The main tube 11 includes a first main tube 111, a second main tube 112, and a third main tube 113. The first main pipe portion 111 comprises a first nozzle 101, the second main pipe portion 112 comprises a second nozzle 102, and the third main pipe portion 113 comprises a third nozzle 103. The third main pipe portion 113 is provided with a first stopper portion 12 inside. In the figure, the main tube body 11 has a T-shaped structure, the first main tube portion 111 and the second main tube portion 112 are connected to form a straight tube, the third main tube portion 113 is connected to a side wall of the straight tube, and the third main tube portion 113 is perpendicular to the straight tube.

The first self-sealing plug 13 is movably disposed in the channel inside the third main pipe portion 113, the first self-sealing plug 13 has a first position and a second position, and the first self-sealing plug 13 is movable along the axial direction of the third main pipe portion 113 to move between the first position and the second position. A first restoring member 14 is mounted to the main tubular body 11, the first restoring member 14 being configured to provide a force to the first self-sealing head 13 for movement to the first position.

The first self-sealing plug 13 provides different passages inside the main pipe body 11 when it is located at different positions. As shown in fig. 4 and 7, when the first self-plugging head 13 is located at the first position, the three-way joint 10 is in a liquid supply use state, the liquid supply channel is opened, and the liquid supplementing channel is closed; as shown in fig. 8 and 10, when the first self-sealing plug 13 is in the second position, the three-way joint 10 is in the fluid infusion state, the fluid infusion channel is opened, and the fluid infusion channel is closed.

As shown in fig. 4, when the first self-sealing cap 13 is located at the first position, the end surface of the first self-sealing cap 13 facing the side of the third pipe orifice 103 abuts against the first limiting portion 12, which not only plays a role in limiting the first self-sealing cap 13 from being separated from the third pipe orifice 103, but also makes contact and fit with the first limiting portion 12 to seal the third pipe orifice 103. When the first self-sealing plug 13 is located at the first position, a channel communicated between the first pipe orifice 101 and the second pipe orifice 102 is opened, at this time, the channel inside the first main pipe orifice 111 is communicated with the channel inside the second main pipe orifice 112 to form a liquid supply channel, and liquid can flow from the first pipe orifice 101 to the second pipe orifice 102, so that liquid can be supplied from the liquid storage container to the outside. Note that closing the third nozzle 103 means that liquid cannot flow from the third nozzle 103 to the first main pipe portion 111 or to the second main pipe portion 112.

As shown in fig. 8 to 10, when the first self-sealing cap 13 is located at the second position, the first self-sealing cap 13 is separated from the first limiting portion 12, and the first self-sealing cap 13 is separated from the first main pipe portion 111 and the second main pipe portion 112, or separated from the first main pipe portion 111 or separated from the second main pipe portion 112, so that the first self-sealing cap 13 cuts off and seals the communication channel between the first pipe orifice 101 and the second pipe orifice 102, and the third pipe orifice 103 and the first pipe orifice 101 are communicated through the fluid supplementing channel, so that the fluid can flow from the third pipe orifice 103 to the first pipe orifice 101, and the fluid can be added and supplemented to the fluid storage container from the outside. The liquid flow in the liquid supplementing channel is as follows: a gap is formed between the third pipe orifice 103, the first self-sealing cap 13 and the first limiting portion 12, a gap is formed between the first self-sealing cap 13 and the inner wall of the third main pipe portion 113, the inside of the first main pipe portion 111, and the first pipe orifice 101.

The three-way joint 10 is applied to plant protection unmanned equipment, and when the first self-plugging head 13 is located at a first position, the three-way joint 10 is in a liquid supply use state, and liquid in the liquid storage container can be pumped to a spraying device through a liquid pump of the plant protection unmanned equipment, so that the function of conveying the liquid outwards is completed. The third main pipe portion 113 of the three-way joint 10 provides a quick disconnect joint 20 mounting location. With continued reference to fig. 1 to 3 and 6, the quick-release connector 20 includes a connector tube 21, a second self-plugging head 23, a second resetting member 24, and a fastening member 253.

The connector tube body 21 comprises a first connector tube opening 201 and a second connector tube opening 202, wherein the first connector tube opening 201 is used for being connected with an external medicine box or other liquid supply container and liquid supply equipment when the connector tube body 21 is applied, and the second connector tube opening 202 is used for being connected with the three-way connector 10. The joint pipe 21 is provided with a second stopper 22. The joint pipe body 21 is a two-way pipe body. The second self-sealing plug 23 is movably disposed in the joint pipe body 21, the second self-sealing plug 23 has a sealing position and an opening position, and the second self-sealing plug 23 can move axially along the joint pipe body 21 in the joint pipe body 21 to move to the sealing position or the opening position. A second restoring member 24 is mounted inside the joint body 21, and the second restoring member 24 is configured to provide a force to the second self-sealing cap 23 for moving to the sealing position. The fastening piece 253 is connected with the joint pipe body 21, and the fastening piece 253 is used for being in fastening connection with the three-way joint 10.

When the second self-sealing stopper 23 is located at a different position, the passage inside the joint pipe body 21 is closed or opened. As shown in fig. 6 and 7, when the second self-sealing cap 23 is in the open position, the first connector nozzle 201 communicates with the second connector nozzle 202, so as to open a flow passage in the quick release connector 20, and liquid can flow from the first connector nozzle 201 to the second connector nozzle 202; when quick detach connects 20 dress in three way connection 10, and the circulation passageway in the quick detach connects 20 is opened, and the fluid replacement passageway in the three way connection 10 is opened, can send the liquid in the outside medical kit to unmanned aerial vehicle's medical kit in through quick detach subassembly, carries out the liquid medicine and supplements.

As shown in fig. 6 and 8 to 10, when the second self-sealing cap 23 is in the sealing position, the end face of the second self-sealing cap 23 facing the side of the second joint orifice 202 abuts against the second limiting portion 22, which not only plays a role in limiting the second self-sealing cap 23 from being separated from the second joint orifice 202, but also cooperates with the second limiting portion 22 to seal the second joint orifice 202 for connection with the three-way joint 10.

In the joint assembly, the three-way joint 10 is installed on the equipment main body of the unmanned aerial vehicle, and when the medicine box of the unmanned aerial vehicle needs to be supplemented with medicine liquid, the quick release joint 20 is installed on the three-way joint 10.

As shown in fig. 3 and 8, the quick release connector 20 is mounted on the three-way connector 10 with the connector assembly in an assembled state. When the joint assembly is in an assembled state, the joint pipe body 21 is sleeved with the third main pipe portion 113, and is in snap connection with the third main pipe portion 113 through the fastening piece 253, so that the quick-release joint 20 is in snap connection with the three-way joint 10, and a channel between the third main pipe portion 113 and the first main pipe portion 111 in the three-way joint 10 is opened, so that the pipeline allows liquid to pass through.

When the joint assembly is in an assembled state, the joint pipe body 21 and the third main pipe portion 113 are limited to move in the axial direction under the limitation of the buckling piece 253, the second self-sealing plug 23 and the first self-sealing plug 13 are abutted against each other, the first self-sealing plug 13 is kept at a second position under the action of the second self-sealing plug 23, and the second self-sealing plug 23 is kept at an open position under the action of the first self-sealing plug 13, so that an internal channel of the joint pipe body 21 is communicated with a fluid supplementing channel of the three-way joint 10, and the first joint pipe orifice 201 is communicated with the first pipe orifice 101.

In fig. 8 to 10, when the joint assembly is in the assembled state, as indicated by the arrows, the first joint pipe orifice 201, the gap between the second self-sealing cap 23 and the second stopper 22, the gap between the second self-sealing cap 23 and the inner wall of the joint pipe body 21, the second joint pipe orifice 202, the third pipe orifice 103 of the three-way structure, the internal passage of the third main pipe portion 113, the internal passage of the first main pipe portion 111, and the first pipe orifice 101 communicate.

Wherein, quick detach connects 20 and three way connection 10 block together, and the fluid infusion passageway of opening that can be better, closed fluid supply passageway to make plant protection unmanned aerial vehicle's liquid pump can add the medicine through this open passageway, in order to satisfy the demand of plant protection unmanned aerial vehicle's automatic dosing's service scenario.

In other application scenarios, the three-way joint 10 of the three-way joint 10 mounted on the unmanned device may be not pressed by the quick release joint 20 to switch to the fluid infusion state, but a first self-plugging head 13 operation portion capable of manually operating the first self-plugging head 13 to move may be reserved, and the first self-plugging head 13 is manually pushed to the second position by pushing the operation portion to open the fluid infusion channel.

After the unmanned aerial vehicle medical kit is filled with liquid, the quick-release connector 20 is detached by the three-way connector 10, and the connector assembly is in a detached state. When the joint assembly is in a disassembled state, the quick-release joint 20 is separated from the three-way joint 10, the first self-blocking head 13 is reset and kept at the first position under the action of the first reset piece 14, at this time, a liquid supply channel in the three-way joint 10 is communicated, and the first pipe orifice 101 and the second pipe orifice 102 are communicated, so that liquid can be allowed to flow, a liquid pump of the unmanned aerial vehicle can normally pump liquid in a medicine chest of the unmanned aerial vehicle to a spraying device of the unmanned aerial vehicle, and the spraying operation is completed. When the joint assembly is in the disassembled state, the second self-blocking head 23 is reset and kept in the closed position under the action of the second reset piece 24.

After the quick-release connector 20 is separated from the three-way connector 10, the first self-plugging cap 13 abuts against the first limiting portion 12 under the action of the first resetting member 14, so that the three-way structure is temporarily and automatically plugged by the third pipe orifice 103 without using, and the situation that liquid drops and leaks from the pipe orifice of the third main pipe orifice 113 is avoided when the liquid medicine is not needed to be replenished. After the quick-release connector 20 is separated from the three-way connector 10, the second self-plugging head 23 can be abutted against the second limiting part 22 under the action of the second resetting piece 24, so that the automatic plugging of the second connector pipe orifice 202 is realized, and the residual liquid in the quick-release connector 20 is prevented from dripping from the second connector pipe orifice 202.

It should be noted that, when the quick-release connector 20 is applied, the first connector nozzle 201 may be normally connected to an external liquid supply container through the water inlet pipe, and when the quick-release connector 20 is detached from the three-way connector 10, the problem of liquid leakage at the first connector nozzle 201 is not required to be considered.

The three-way joint 10, the quick release joint 20 and the joint assembly of the utility model provide better liquid supply and liquid supplement effects when applied to unmanned aerial vehicles, unmanned vehicles and other agricultural unmanned equipment or other equipment and fields by the following modes:

first, a three-way connection 10 can provide different waterways under different states, installs a three-way connection 10 in equipment main part, not only can satisfy the liquid demand that equipment goes out to outside, can also satisfy the demand that is supplied liquid to equipment inside by outside, satisfies two sets of waterways demands through a three-way connection 10, need not to install two sets of waterway structures in equipment main part, makes the structure of unmanned aerial vehicle etc. equipment simpler.

Second, when the quick-release connector 20 is assembled to the three-way connector 10, closing of the liquid supply channel and opening of the liquid supplementing channel of the three-way connector 10 are completed, and the three-way connector 10 is not required to be manually operated again for switching the channels, so that the operation is convenient and quick, and the liquid supplementing efficiency is higher.

Third, when the joint assembly is in an assembled state, the three-way joint 10 has a self-sealing and drip-proof function, and the first self-sealing plug 13 can seal a channel between the first main pipe portion 111 and the second main pipe portion 112, namely seal a liquid supply channel; thereby avoiding liquid from dripping to the second main pipe 112 connected with the spraying device during liquid supplementing and avoiding affecting the accuracy of the subsequent spraying operation; and the dripping between different channels is avoided, and the fluid infusion efficiency is ensured.

Fourth, when the joint assembly is in a disassembled state, the three-way joint 10 has a self-sealing and leakage-preventing function, the first self-sealing plug 13 plugs the third pipe orifice 103, when no external force is propped against the joint assembly, the self-sealing and leakage-proof of the third main pipe orifice 113 is realized, and the leakage of liquid from the third pipe orifice 103 during liquid supply is avoided, so that waste or environmental pollution is caused.

Fifth, when the joint assembly is in the disassembled state, the quick-release joint 20 has a self-sealing and leakage-preventing function, and the second joint pipe orifice 202 is plugged by the second self-sealing plug 23, so that residual liquid is prevented from leaking out of the second joint pipe orifice 202, and waste or environmental pollution is avoided.

Sixth, when the joint assembly is in an assembled state, the quick-release joint 20 and the three-way joint 10 are kept in a clamping and buckling manner through the buckling piece 253, so that manual operation is not needed, and the labor is saved and the efficiency is improved.

In other embodiments, main tubular body 11 may also be of Y-type configuration, or other shaped configuration.

With continued reference to fig. 4, 5, and 7-10, the three-way joint 10 is configured in such a way as to achieve a closing of the passage between the first main pipe portion 111 and the second main pipe portion 112 when the first self-plugging head 13 is moved to the second position.

The three-way joint 10 includes a secondary pipe body 15. The sub-pipe body 15 is provided inside the main pipe body 11. The sub-pipe body 15 includes a first sub-pipe portion 151 and a second sub-pipe portion 152. The first sub-pipe portion 151 is spaced between the first main pipe portion 111 and the second main pipe portion 112, the second sub-pipe portion 152 is located in the third main pipe portion 113, an overcurrent gap 105 is formed between the second sub-pipe portion 152 and the third main pipe portion 113, and the end of the second sub-pipe portion 152 forms the sub-pipe orifice 104.

In other words, the liquid in the first main pipe portion 111 is blocked by the sub pipe body 15, cannot flow directly into the second main pipe portion 112, but must first enter the passage of the sub pipe body 15, and then pass through the sub pipe orifice 104 and the flow gap 105, before flowing into the second main pipe portion 112. In this way, by opening or closing the sub-nozzle 104, the on-off between the channels of the first main pipe portion 111 and the second main pipe portion 112 can be achieved, and the communication or the blocking between the first nozzle 101 and the second nozzle 102 can be achieved.

When the first self-plugging head 13 is located at the first position, the first self-plugging head 13 opens the auxiliary pipe orifice 104, the first main pipe 111, the auxiliary pipe, the overflow gap 105, and the second main pipe 112 are sequentially communicated to form a liquid supply channel, and the first pipe orifice 101 is communicated with the second pipe orifice 102 through the liquid supply channel. When the first self-sealing cap 13 is located at the second position, the first self-sealing cap 13 seals the auxiliary pipe orifice 104 to close the liquid supply channel, so that the first pipe orifice 101 and the second pipe orifice 102 cannot be communicated.

In this embodiment, by configuring the secondary pipe portion and by means of the small pipe in the large pipe, the secondary pipe orifice 104 can be opened or capped by the first self-plugging head 13 to realize the switching of two waterways, so that the three-way structure is simpler. In addition, the sealing member is arranged on one side of the first self-sealing plug 13 close to the auxiliary pipe body 15, so that sealing leakage prevention during sealing of the auxiliary pipe orifice 104 is easy to realize.

In other embodiments, the main pipe body 11 may be configured in the T-shaped structure, and when the first self-sealing cap 13 is located at the second position, the first self-sealing cap 13 is inserted into the straight pipe portion and inserted between the first main pipe portion 111 and the second main pipe portion 112, which is not easy to realize leakage prevention.

With continued reference to fig. 6 to 11, in order to facilitate manual operation to achieve the snap connection or disconnection between the quick release connector 20 and the three-way connector 10, the quick release connector 20 includes a sleeve 251, and the sleeve 251 is used to lock or unlock the locking member 253.

The sleeve 251 is sleeved outside the joint pipe body 21, the sleeve 251 is movably connected with the joint pipe body 21, and the sleeve 251 can move to a locking position or an unlocking position along the axial direction of the joint pipe body 21. When the sleeve 251 is in the locking position, the sleeve 251 acts on the fastening member 253 to fasten the fastening member 253 to the third main pipe portion 113, so as to maintain the connection between the quick release connector 20 and the three-way connector 10, and to maintain the abutment of the second self-sealing plug 23 against the first self-sealing plug 13. When the sleeve 251 is in the unlocked position, the fastening member 253 is disengaged from the third main pipe portion 113, and the quick connector 20 can be detached.

The quick disconnect 20 includes a third reset member 252. A third restoring member 252 is provided between the sleeve 251 and the joint body 21, the third restoring member 252 providing a force to the sleeve 251 to be maintained in the locked position. In this embodiment, the fixing sleeve 254 is provided on the outside of the joint body 21, and the third restoring member 252 is sandwiched between the fixing sleeve 254 and the sleeve 251.

In other embodiments, the third restoring member 252 may not be provided, positioning holes may be provided in the joint pipe body 21 and the third main pipe portion 113, respectively, and after the quick release joint 20 is inserted into the three-way joint 10, positioning pins may be engaged into the two positioning holes, or the joint assembly may be maintained in an assembled state.

With continued reference to fig. 6, 8-11, and 13, the following describes the fitting relationship among the sleeve 251, the joint body 21, the third main pipe 113, and the fastening member 253:

the fastening member 253 is movably mounted between the sleeve 251 and the third main pipe portion 113.

The outer wall of the third main pipe portion 113 is provided with fastening recesses 1131 at intervals in the circumferential direction, the joint pipe body 21 is provided with a plurality of fastening holes 2131 at intervals in the circumferential direction, and the plurality of fastening pieces 253 are provided at intervals in the circumferential direction. At least a portion of the fastener 253 is inserted into the fastener hole 2131.

The sleeve 251 includes a locking pipe portion 2511 and an unlocking pipe portion 2512 connected to each other, a gap between the locking pipe portion 2511 and the joint pipe body 21 being a first gap, a gap between the unlocking pipe portion 2512 and the joint pipe body 21 being a second gap, the first gap being smaller than the second gap; when the sleeve 251 is at the locking position, the fastening member 253 is fastened into the fastening concave portion 1131 under the pressing force of the locking tube portion 2511; when the sleeve 251 is in the unlocked position, the unlocking pipe portion 2512 is located at a side of the fastening member 253 facing away from the third main pipe portion 113, and the fastening member 253 is disengaged from the fastening recess 1131.

As shown in fig. 7, sleeve 251 is in a locked position when the connector assembly is in a disassembled state. As shown in fig. 8, sleeve 251 is also in the locked position when the connector assembly is in the assembled state. As shown in b) of fig. 11, when the quick connector 20 is attached or when the quick connector 20 is required to be detached, the sleeve 251 may be moved to the left to the unlock position.

In order to provide a smoother locking and unlocking experience, a guiding inclined surface 2513 is formed between the locking tube portion 2511 and the unlocking tube portion 2512, and the guiding inclined surface 2513 is used for guiding the steel balls to move.

The fastening member 253 may have a spherical structure, and friction between the spherical structure and the joint pipe body 21 or the third main pipe 113 is small, so that the position of the fastening member 253 can be easily adjusted when the sleeve 251 is moved, and fastening and dismounting between joints can be realized. In this embodiment, the fastening member 253 is a steel ball, and the fastening member 253 may be made of stainless steel, which is not easy to rust, and is suitable for application in waterway systems, and has high reliability and high hardness. The spherical steel balls are matched with the joint pipe body 21 and the third main pipe portion 113 well, and the limiting effect is good. The two joints are clamped together through the steel balls, and are not easy to separate. In other embodiments, the fastening member 253 may be a metal ball made of other materials.

In this embodiment, the joint pipe body 21 includes three sections: the first joint pipe portion 211, the second joint pipe portion 212 and the third joint pipe portion 213, the third joint pipe portion 213 is provided with a fastening hole 2131 and an anti-drop protrusion 214, the second self-sealing plug 23 is located in the third joint pipe portion 213 in a normal state, and when the quick release joint 20 is mounted on the three-way joint 10, the third joint pipe portion 213 is sleeved outside the three-way joint 10.

The assembly and disassembly process between the quick release connector 20 and the three-way connector 10 will be described.

Under the action of the third resetting piece 252, in a normal state, the sleeve 251 is kept at a locking position to the right, when the sleeve 251 is located at the locking position, the buckling piece 253 is pressed, and the buckling piece 253 penetrates through the joint pipe body 21 to press the third main pipe portion 113, so that the quick-release joint 20 and the three-way joint 10 cannot be separated, and buckling is realized.

The joint pipe body 21 is provided with an outward protruding anti-drop protrusion 214, or the sleeve 251 is provided with an inward protruding anti-drop protrusion 214; the first joint pipe orifice 201 is used for being connected with a liquid supply pipe, and the second joint pipe orifice 202 is used for being connected with the three-way joint 10; the anti-falling protrusion 214 is located at a side of the fastening member 253 facing away from the first joint orifice 201, and the anti-falling protrusion 214 restricts the fastening member 253 from falling out from between the sleeve 251 and the joint pipe body 21.

The structure of the three-way joint 10 and the quick release joint 20 will be described below. The first self-sealing stopper 13 includes a first stopper body 131, a first boss 133, a first seal 134, and a second seal 135. The second self-sealing stopper 23 includes a second stopper body 231, a second boss 233, and a third seal 234.

The first sealing member 134 is used for self-sealing and leakage-preventing the three-way structure when the three-way structure is separated from the quick release connector 20. The first sealing element 134 is arranged on one side of the first plug main body 131 close to the third pipe orifice 103; when the first self-sealing plug 13 is located at the first position, the first sealing element 134 is sandwiched between the first plug main body 131 and the first limiting portion 12, and the first sealing element 134 contacts the first limiting portion 12 to close the third nozzle 103.

The third sealing member 234 is used for self-sealing and leakage-preventing the quick-dismantling joint 20 when the quick-dismantling joint 20 is separated from the three-way joint 10. The second joint orifice 202 is used for connecting with the three-way joint 10, and the third sealing member 234 is arranged on one side of the second plug main body 231, which is close to the second joint orifice 202; when the second self-sealing plug 23 is in the sealing position, the third sealing member 234 is sandwiched between the second plug body 231 and the second limiting portion 22, and the third sealing member 234 contacts the second limiting portion 22 to seal the second joint orifice 202.

The first plug body 131 is a hard structure, and may be, but not limited to, a metal material, an alloy material, or a hard plastic material. The first sealing element 134 and the third sealing element 234 are elastic structures with certain elasticity, and may be, but not limited to, rubber rings, rubber mats and rubber blocks.

The first self-sealing plug 13 and the second self-sealing plug 23 are assembled by adopting structures with different materials, so that the plug main bodies can be used as main body parts of the plugs through the first plug main body 131 and the second plug main body 231 with higher structural strength, the plug main bodies are not easy to deform, and the plug main bodies can be well matched with the components such as the pipe body and the reset piece, so that the plug main bodies can stably and reliably move to the target position under the action of the reset piece, or can be pushed away to the target position when the two self-sealing plugs mutually abut against each other, and the on-off state control of the self-sealing plug on the channel is realized. And, through the spacing cooperation between first sealing member 134 and the first spacing portion 12 that have certain elasticity, through the spacing cooperation between second sealing member 135 and the second spacing portion 22 that have certain elasticity, the sealing member can be extruded under the effect of restoring to the throne the piece and produce certain deformation, realizes better antidrip effect.

The second sealing member 135 is used for sealing and preventing leakage of the liquid supply channel of the three-way structure when the joint assembly is in an assembled state. The second sealing element 135 is arranged on one side of the first plug main body 131, which is close to the auxiliary pipe body 15; when the first self-sealing plug 13 is in the second position, the second sealing member 135 is sandwiched between the first plug main body 131 and the sub-pipe body 15, and the second sealing member 135 contacts the sub-pipe body 15 to close the sub-pipe orifice 104, so that no liquid can flow between the first main pipe portion 111 and the second main pipe portion 112.

In the case where the second seal 135 is provided and the three-way joint 10 includes the sub pipe body 15, in order to achieve good sealing and impermeable performance with a simple structure, the first plug main body 131 and the second seal 135 are assembled by:

the side of the first plug main body 131 near the auxiliary pipe body 15 is provided with a mounting groove (not shown), and the second sealing member 135 is a sealing rubber block, which may be made of, but not limited to, rubber, silica gel, etc. The second sealing member 135 is arranged in the mounting groove, so that the thickness and the surface area of the second sealing member 135 can be configured to be larger than those of the first sealing member 134, the second sealing member 135 can be in ingenious fit with the auxiliary pipe body 15, the second sealing member 135 can be just propped against the end part of the auxiliary pipe body 15 when the first self-plugging head 13 receives axial force, the sealing effect is good, and when water exists in the first main pipe portion 111, the second sealing member 135 can buffer water pressure better, and the sealing effect is guaranteed.

The sealant block embedded in the first plug main body 131 is adopted as the second sealing member 135, the end face of the first self-sealing plug 13 close to one side of the auxiliary pipe body 15 is flat, when the first self-sealing plug 13 is not positioned at the first position to open the auxiliary pipe orifice 104, the protruding part of the first self-sealing plug 13 is prevented from obstructing the water flow flowing from the first main pipe part 111 to the second main pipe part 112, the pressure of the supplied water is ensured, and a good spraying effect is provided.

In other embodiments, the second seal 135 may also be a sealing ring that is sleeved on the first plug body 131.

In other embodiments, the first plug body 131, the first sealing member 134, and the second sealing member 135 may be integrally formed with one another, or the second plug body 231 and the second sealing member 135 may be integrally formed with one another.

The first self-sealing plug 13 further comprises a first convex column 133 and a first gland, the first convex column 133 and the first plug main body 131 are integrally formed, the first gland and the first plug main body 131 are of a split structure, the first gland is detachably or fixedly installed at the pipe orifice of the third main pipe portion 113, and the first gland is provided with a first through hole. The first protruding column 133 is connected to a side of the first plug main body 131, which is close to the first limiting portion 12, and the first sealing element 134 is a sealing ring, and the first sealing element 134 is sleeved outside the first protruding column 133. When the first self-sealing plug 13 is located at the first position, the first post 133 is inserted into the first through hole, and the first sealing element 134 is sandwiched between the first gland and the first plug main body 131.

The second self-sealing plug 23 further comprises a second convex column 233 and a second gland, the second convex column 233 and the second plug main body 231 are integrally formed, the second gland and the second plug main body 231 are of a split structure, the second gland is detachably or fixedly arranged at the second interface pipe of the joint pipe body 21, and the second gland is provided with a second through hole. The second protruding column 233 is connected with one side of the second plug main body 231, which is close to the second limiting part 22, and the third sealing piece 234 is sleeved outside the second protruding column 233; when the second self-sealing plug 23 is in the second position, the second boss 233 is inserted into the second through hole, and the third seal 234 is sandwiched between the second gland and the second plug body 231.

When the first self-plugging head 13 is at the first position, the first convex column 133 is inserted into the first through hole, when the second self-plugging head 23 is at the closed position, the second convex column 233 is inserted into the second through hole, and when the quick-release connector 20 is in sleeve joint and buckling with the three-way connector 10, the butt joint of the second convex column 233 and the first convex column 133 can be easily realized, so that the opening of two internal joint channels is realized.

When the three-way joint 10 is manufactured, the first resetting piece 14 and the first self-plugging head 13 are firstly installed into the third main pipe part 113 through the third pipe orifice 103, and then the first gland is capped; when the quick-release joint 20 is manufactured, the second reset piece 24 and the second self-plugging head 23 are firstly installed into the joint pipe body 21 through the second joint pipe orifice 202, and then the second gland is capped; the gland is arranged so as to be convenient to assemble and provide a limiting function.

The first restoring member 14 is a first elastic member mounted inside the main tube body 11, which may be, but is not limited to, a spring. The second restoring member 24 is a second elastic member installed inside the joint pipe body 21, and the second elastic member may be, but is not limited to, a spring. The first restoring member 14 is a first spring, which is a compression spring, and is disposed on a side of the first self-sealing plug 13 facing away from the third pipe orifice 103. The second restoring member 24 is a second spring, which is a compression spring, and is disposed on a side of the second self-sealing plug 23 facing away from the joint orifice. The spring is used as the first restoring member 14 and the second restoring member 24, and the elastic force can be provided more stably than the elastic sheet. The use of the elastic members as the first restoring member 14 and the second restoring member 24 is easier to install, lighter in weight, and simpler in construction than by magnets or other structures.

In other embodiments, the first restoring member 14 and the second restoring member 24 may be magnets.

With continued reference to fig. 4 and 6, the first and second return members 14 and 24 are mounted as follows:

the third main pipe portion 113 is internally provided with a first installation step 114, the first self-sealing plug 13 is arranged between the first limiting portion 12 and the first installation step 114, the first self-sealing plug 13 comprises a first plug main body 131 and a first plug clamping block 132 which are connected with each other, the first reset piece 14 is a first spring, the first spring is sleeved outside the first plug main body 131, one end of the first spring is abutted against the first plug clamping block 132, and the other end of the first spring is abutted against the first installation step 114.

The joint pipe portion is internally provided with a second installation step 2121, a second self-sealing plug 23 is arranged between the second limiting portion 22 and the second installation step 2121, the second self-sealing plug 23 comprises a second plug main body 231 and a second plug clamping block 232 which are mutually connected, the second resetting piece 24 is a second spring, the second spring is sleeved outside the second plug main body 231, one end of the second spring is abutted against the second plug clamping block 232, and the other end of the second spring is abutted against the second installation step 2121.

With continued reference to fig. 7 to 10, 12 and 13, when the first self-plugging head 13 includes the first plug fixture block 132 and the second self-plugging head 23 includes the second plug fixture block 232, the communication between the channel in the three-way joint 10 and the channel in the quick release joint 20 is achieved by the following manner:

the first plug fixture block 132 is provided with a first fixture block gap or a first fixture block gap is formed between adjacent first plug fixture blocks 132, and when the first self-sealing plug 13 is located at the second position, the third main pipe portion 113 is communicated with the first main pipe portion 111 through the first fixture block gap. When the second self-sealing plug 23 includes the second plug fixture block 232, the second plug fixture block 232 is provided with a second fixture block notch or a second fixture block notch is formed between adjacent second plug fixture blocks 232, and when the second self-sealing plug 23 is located at the open position, the first joint pipe orifice 201 is communicated with the second joint pipe orifice 202 through the second fixture block notch.

With continued reference to fig. 6, in order to facilitate connection of the connector body 21 to the water inlet pipe, a fluid supplementing function is provided.

The joint pipe body 21 includes a first joint pipe portion 211, a first joint pipe orifice 201 formed in the first joint pipe portion 211, and a second joint pipe portion 212, a second joint pipe orifice 202 formed in the second joint pipe portion 212; the first joint pipe part 211 is used for being connected with a liquid adding pipe, and the second joint pipe part 212 is used for being connected with the three-way joint 10; the diameter of the first joint pipe section 211 is smaller than the diameter of the second joint pipe section 212. The first joint pipe part 211 is configured to facilitate the water inlet pipe to be sleeved on the quick release joint 20, and the first joint pipe orifice 201 of the quick release joint 20 is communicated with the liquid supply equipment or the liquid supply container through the water inlet pipe.

The outer side of the first connector tube portion 211 provides a collar or other structure for mating with a water inlet tube and the outer side of the second connector tube portion 212 is for mounting the sleeve 251.

The three-way joint 10 further comprises a mounting frame 30, the mounting frame 30 is provided with mounting holes 31, the mounting frame 30 is fixed on the main pipe body 11 of the three-way joint 10, and the mounting frame 30 is locked on the equipment main body of unmanned aerial vehicle and other equipment through screws or other modes.

In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify operation, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning.

In the description herein, reference to the term "one embodiment," "an example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in the foregoing embodiments, and that the embodiments described in the foregoing embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.

Claims

1. A three-way connection for plant protection equipment, comprising:

a main tube body (11) comprising a first main tube (111), a second main tube (112), and a third main tube (113); the first main tube portion (111) comprises a first nozzle (101), the second main tube portion (112) comprises a second nozzle (102), and the third main tube portion (113) comprises a third nozzle (103); the third main pipe part (113) is provided with a first limit part (12);

a first self-sealing plug (13) movably arranged in the third main pipe part (113); the first self-plugging head (13) is provided with a first position and a second position; when the first self-plugging head (13) is positioned at the first position, the first self-plugging head is abutted against the first limiting part (12) to seal the third pipe orifice (103), and the first pipe orifice (101) is communicated with the second pipe orifice (102); when the first self-blocking head (13) is positioned at the second position, the first self-blocking head (13) closes a communication channel between the first pipe orifice (101) and the second pipe orifice (102), and the first pipe orifice (101) is communicated with the third pipe orifice (103);

a first restoring member (14) mounted to the main tube body (11); the first reset piece (14) is used for providing a force for moving to a first position for the first self-plugging head (13);

2. Three-way joint for plant protection equipment according to claim 1, characterized in that it comprises a secondary pipe body (15); the auxiliary pipe body (15) is arranged in the main pipe body (11); the auxiliary pipe body (15) comprises a first auxiliary pipe part (151) and a second auxiliary pipe part (152); the first auxiliary pipe portion (151) is spaced between the first main pipe portion (111) and the second main pipe portion (112); the second auxiliary pipe part (152) is positioned in the third main pipe part (113), an overflow gap (105) is formed between the second auxiliary pipe part (152) and the third main pipe part (113), and an auxiliary pipe orifice (104) is formed at the end part of the second auxiliary pipe part (152);

when the first self-plugging head (13) is positioned at the second position, the first self-plugging head (13) closes the auxiliary pipe opening (104); when the first self-plugging head (13) is located at the first position, the auxiliary pipe port (104) is opened by the first self-plugging head (13), and the first main pipe portion (111), the auxiliary pipe body (15), the overcurrent gap (105) and the second main pipe portion (112) are communicated.

3. The three-way joint for plant protection equipment according to claim 1, wherein the first self-plugging head (13) comprises a first plug body (131) and a first seal (134); the first sealing piece (134) is arranged on one side of the first plug main body (131) close to the third pipe orifice (103); when the first self-sealing plug (13) is located at the first position, the first sealing piece (134) is in contact with the first limiting part (12) to seal the third pipe orifice (103).

4. The three-way joint for plant protection equipment according to claim 2, characterized in that the first self-plugging head (13) comprises a first plug body (131) and a second seal (135); the second sealing piece (135) is arranged on one side, close to the auxiliary pipe body (15), of the first plug main body (131); when the first self-plugging head (13) is located at the second position, the second sealing piece (135) is in contact with the auxiliary pipe body (15) so as to seal the auxiliary pipe opening (104).

5. The three-way joint for plant protection equipment according to claim 4, wherein a mounting groove is formed in one side of the first plug main body (131) close to the auxiliary pipe body (15), the second sealing element (135) is a sealing rubber block, and the second sealing element (135) is arranged in the mounting groove; when the first self-plugging head (13) is located at the second position, the second sealing piece (135) abuts against the end face of the auxiliary pipe body (15), and the second sealing piece (135) covers the auxiliary pipe opening (104).

6. A joint assembly comprising a three-way joint (10) for plant protection equipment according to any one of claims 1 to 5, and further comprising a quick-release joint (20); the quick-release connector (20) comprises a connector pipe body (21), a second self-plugging head (23) and a buckling piece (253), wherein a first connector pipe orifice (201) and a second connector pipe orifice (202) are formed on two opposite sides of the connector pipe body (21), the second self-plugging head (23) is arranged in the connector pipe body (21), and the buckling piece (253) is connected with the connector pipe body (21);

The joint assembly has an assembled state; when the joint assembly is in the assembled state, the joint pipe body (21) is buckled and connected with the third main pipe part (113) through the buckling piece (253), the second self-sealing plug (23) abuts against the first self-sealing plug (13), the first self-sealing plug (13) is kept at a second position under the action of the second self-sealing plug (23), and the first joint pipe orifice (201), the second joint pipe orifice (202), the third pipe orifice (103) and the first pipe orifice (101) are communicated.

7. Joint assembly according to claim 6, wherein the joint body (21) further comprises a second reset member (24); the second self-plugging head (23) is movably arranged in the joint pipe body (21), and the second resetting piece (24) is arranged between the second self-plugging head (23) and the joint pipe body (21); a second limit part (22) is arranged in the joint pipe body (21);

the second self-sealing plug (23) has a sealing position and an opening position; when the self-plugging head is positioned at the closed position, the second self-plugging head (23) is abutted against the second limiting part (22) to close the second joint pipe orifice (202); in the open position, the first connector nozzle (201) is in communication with the second connector nozzle (202);

-said second self-sealing plug (23) being in said open position when said joint assembly is in said assembled state; the second reset element (24) is used for providing a force for moving the second self-plugging head (23) to a closing position.

8. The fitting assembly according to claim 7, wherein the second fitting nozzle (202) is adapted to be connected to a three-way fitting (10);

the second self-sealing plug (23) comprises a second plug body (231) and a third seal (234); the third sealing element (234) is arranged on one side of the second plug main body (231) close to the second joint orifice (202); when the second self-plugging head (23) is located at the closing position, the third sealing piece (234) abuts against the second limiting part (22) to close the second joint pipe orifice (202).

9. Joint assembly according to any of claims 6-8, wherein the joint body (21) comprises a first joint pipe part (211) and a second joint pipe part (212), the first joint pipe orifice (201) being formed in the first joint pipe part (211) and the second joint pipe orifice (202) being formed in the second joint pipe part (212);

the first joint pipe part (211) is used for being connected with a liquid adding pipe, and the second joint pipe part (212) is used for being connected with the three-way joint (10); the diameter of the first joint pipe part (211) is smaller than the diameter of the second joint pipe part (212).

10. Joint assembly according to any of claims 6-8, wherein the quick release joint (20) comprises a sleeve (251), the sleeve (251) being provided outside the joint body (21), the sleeve (251) being movably connected with the joint body (21);

-said sleeve (251) being movable along the axial direction of said joint body (21) to a locked position or an unlocked position; when the sleeve (251) is located at the locking position, the sleeve (251) acts on the buckling piece (253), and the buckling piece (253) is buckled with the third main pipe part (113); when the sleeve (251) is located at the unlocking position, the buckling piece (253) is separated from buckling with the third main pipe part (113).

11. The connector assembly of claim 10, wherein the quick disconnect connector (20) includes a third return member (252), the third return member (252) being disposed between the sleeve (251) and the connector body (21), the third return member (252) providing a force to the sleeve (251) that remains in the locked position.

12. The joint assembly according to claim 10, wherein an outer wall of the third main pipe portion (113) is provided with a fastening recess (1131), and the joint pipe body (21) is provided with a fastening hole (2131); at least a portion of the fastener (253) is embedded within the fastener hole (2131);

The sleeve (251) comprises a locking pipe part (2511) and an unlocking pipe part (2512) which are connected with each other, wherein a gap between the locking pipe part (2511) and the joint pipe body (21) is a first gap, a gap between the unlocking pipe part (2512) and the joint pipe body (21) is a second gap, and the first gap is smaller than the second gap;

when the sleeve (251) is positioned at the locking position, the buckling piece (253) is clamped into the buckling concave part (1131) under the extrusion of the locking pipe part (2511); when the sleeve (251) is located at the unlocking position, the unlocking pipe portion (2512) is located at one side, away from the third main pipe portion (113), of the fastening piece (253), and the fastening piece (253) is separated from the fastening concave portion (1131).

13. The joint assembly according to claim 12, wherein the joint pipe body (21) is provided with an outwardly protruding anti-drop protrusion (214), or the sleeve (251) is provided with an inwardly protruding anti-drop protrusion (214); the first joint pipe orifice (201) is used for being connected with a liquid supply pipe, and the second joint pipe orifice (202) is used for being connected with the three-way joint (10); the anti-falling convex part (214) is positioned on one side of the buckling piece (253) deviating from the first joint pipe orifice (201), and the anti-falling convex part (214) limits the buckling piece (253) from falling out from between the sleeve (251) and the joint pipe body (21).

14. The joint assembly according to claim 7, wherein the first self-plugging head (13) comprises a first plug body (131), a first post (133) and a first sealing member (134), the first post (133) is connected to a side of the first plug body (131) close to the first limiting portion (12), and the first sealing member (134) is sleeved outside the first post (133); the first limiting part (12) is a first gland, the first gland is connected with the third main pipe part (113), and the first gland is provided with a first through hole; when the first self-plugging head (13) is positioned at the first position, the first convex column (133) is inserted into the first through hole, and the first sealing piece (134) abuts against the first gland to close the third pipe orifice (103);

and/or, the second self-plugging head (23) comprises a second plugging head main body (231), a second convex column (233) and a third sealing piece (234), the second convex column (233) is connected with one side, close to the second limiting part (22), of the second plugging head main body (231), and the third sealing piece (234) is sleeved outside the second convex column (233); the second limiting part (22) is a second gland, the second gland is connected with the joint pipe body (21), and the second gland is provided with a second through hole; when the second self-plugging head (23) is located at the second position, the second convex column (233) is inserted into the second through hole, and the third sealing piece (234) abuts against the second gland to close the second joint orifice (202).

15. The joint assembly according to claim 7, wherein when the first self-plugging head (13) includes a first plug fixture block (132), the first plug fixture block (132) is provided with a first fixture block gap or a first fixture block gap is formed between adjacent first plug fixture blocks (132), and the third main pipe portion (113) is communicated with the first main pipe portion (111) through the first fixture block gap when the first self-plugging head (13) is located at the second position;

and/or when the second self-plugging head (23) comprises a second plug clamping block (232), the second plug clamping block (232) is provided with a second clamping block notch or a second clamping block notch is formed between the second plug clamping blocks (232), and when the second self-plugging head (23) is positioned at the opening position, the first joint pipe orifice (201) is communicated with the second joint pipe orifice (202) through the second clamping block notch.

16. Plant-protection unmanned equipment, characterized by comprising a liquid storage container, a liquid pump, a spraying device and a three-way joint (10) for plant-protection equipment according to any one of claims 1-5;

the liquid storage container is connected with the liquid pump, the liquid pump is connected with a first main pipe part (111) of the three-way joint (10), and a second main pipe part (112) of the three-way joint (10) is connected with the spraying device.