CN115415066B - Drip-proof valve, spraying system and plant protection unmanned aerial vehicle - Google Patents
Drip-proof valve, spraying system and plant protection unmanned aerial vehicle Download PDFInfo
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- CN115415066B CN115415066B CN202210997183.3A CN202210997183A CN115415066B CN 115415066 B CN115415066 B CN 115415066B CN 202210997183 A CN202210997183 A CN 202210997183A CN 115415066 B CN115415066 B CN 115415066B
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- pressure
- drip
- transmission
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- 238000005507 spraying Methods 0.000 title claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 239000003814 drug Substances 0.000 claims abstract description 25
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000007921 spray Substances 0.000 claims description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- RZVHIXYEVGDQDX-UHFFFAOYSA-N 9,10-anthraquinone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
- B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
- B64D1/18—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting by spraying, e.g. insecticides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to an anti-drip valve, a spraying system and a plant protection unmanned aerial vehicle, wherein the anti-drip valve comprises a mounting bracket, a driving piece, a transmission piece, a pressure-stopping piece and a pressure-waiting piece, and the mounting bracket is provided with a through groove with two open ends; the driving piece is fixed on the mounting bracket; the transmission part is driven by the driving part to move; one end of the pressure stopping piece is connected with the transmission piece, the other end of the pressure stopping piece extends into the through groove, and the driving piece drives the pressure stopping piece to move through the transmission piece; the waiting pressing piece is arranged in the through groove in a penetrating way and is controlled to be switched on and off by the moving pressing piece. The drip-proof valve provided by the embodiment of the invention can be arranged on a pipeline needing to control the on-off of liquid and has wide application range; the spraying system and the plant protection unmanned aerial vehicle are provided with the anti-drip valve, so that the liquid medicine is saved, and the pollution of the liquid medicine to the environment is avoided.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicles, in particular to an anti-drip valve, a spraying system and a plant protection unmanned aerial vehicle.
Background
Plant protection unmanned aerial vehicle belongs to unmanned aerial vehicle for agriculture and forestry pesticide sprays, can improve farming efficiency, reduces artifical intensity of labour, avoids operating personnel direct exposure under the pesticide environment and damages healthy. The plant protection unmanned aerial vehicle comprises a spraying system, wherein the spraying system comprises a medicine box, a water pump, a spray rod and a spray nozzle, the medicine box, the water pump and the spray rod are sequentially connected through a liquid conveying pipe, the water pump conveys liquid medicine in the medicine box to the spray rod through the liquid conveying pipe, and the spray nozzle at the end part of the spray rod sprays the liquid medicine.
When plant protection unmanned aerial vehicle stops plant protection operation, water pump and shower nozzle all are in the state of closing, but because the transfer line is generally longer, still remain a certain amount of liquid medicine in it, and the shower nozzle that adopts on the current plant protection unmanned aerial vehicle adopts pressure nozzle or centrifugal nozzle mostly, and liquid medicine leaks through the shower nozzle under the action of gravity, has caused the liquid medicine extravagant on the one hand, and on the other hand, the liquid medicine of drip can cause the pollution to external environment, easily is contacted and influences health by operating personnel moreover.
Disclosure of Invention
In order to solve the technical problems, the embodiment of the invention provides an anti-drip valve, a spraying system and a plant protection unmanned aerial vehicle, which can effectively prevent residual liquid medicine in a transfusion tube from dripping and leaking through a spray head, and are simple in structure and convenient to install.
In order to achieve the technical effects, the embodiment of the invention adopts the following technical scheme: in a first aspect, an embodiment of the present invention provides an anti-drip valve, including:
the mounting bracket is provided with through grooves with two open ends;
the driving piece is fixed on the mounting bracket;
the transmission piece is driven by the driving piece to move;
one end of the pressure stopping piece is connected with the transmission piece, the other end of the pressure stopping piece stretches into the through groove, and the driving piece drives the pressure stopping piece to move through the transmission piece;
and the pressing piece is arranged in the through groove in a penetrating way, and the on-off of the pressing piece is controlled by the moving pressing piece.
The drip-proof valve provided by the embodiment of the invention has a simple structure, the driving piece drives the transmission piece to move, the transmission piece drives the pressure-proof piece to move, the pressure-proof piece controls the on-off of the pressure-proof piece under the action of the transmission piece, and when the pressure-proof piece extrudes the pressure-proof piece, the pressure-proof piece seals the pressure-proof piece to prevent liquid from passing through; when the pressing piece is far away from the pressing piece under the action of the transmission piece, the inner channel of the pressing piece is opened to enable liquid to pass through, and the control is convenient.
As a preferable structure of the embodiment of the invention, the driving part is a steering engine, and an output shaft of the steering engine is fixedly connected with the transmission part.
As an improvement on the structure of the embodiment of the invention, the transmission part is a rotary disk, and the output shaft of the steering engine is fixedly connected with the central part of the rotary disk; the pressing piece comprises a pressing rod, an axial clamping groove is formed in one end of the pressing rod, the axial clamping groove comprises groove walls on two sides, an arc-shaped pushing groove is formed in the rotating disc, and the rotating disc partially stretches into the axial clamping groove; the compression bar is connected with the rotating disc through a fixing pin, and the fixing pin penetrates through the groove wall at one side of the axial clamping groove and penetrates through the groove wall at the other side of the axial clamping groove after passing through the arc-shaped pushing groove of the rotating disc.
As a preferable structure of the embodiment of the invention, the arc pushing groove is provided with two end parts, including a first end part and a second end part, and the included angle between the two end parts and the connecting line of the center part of the rotating disk is a right angle; the length of the first end part from the center part of the rotating disc is 1.5-2 times of the length of the second end part from the center part of the rotating disc.
As a preferable structure of the embodiment of the invention, the mounting bracket comprises a bottom plate, a fixing frame is arranged on the bottom plate, and the fixing frame is provided with a through groove with two open ends for the to-be-pressed piece to pass through; the side part of the bottom plate is provided with a side plate, the bottom plate is provided with a mounting opening, the driving piece and the transmission piece are respectively fixed on two sides of the mounting opening on the bottom plate, the transmission piece and the fixing frame are positioned on the same side of the bottom plate, one end of the pressure-stopping piece is connected with the transmission piece, and the other end of the pressure-stopping piece stretches into the through groove on the fixing frame.
In a second aspect, the invention provides a spraying system, which comprises a medicine box, a water pump, a liquid conveying pipe, a spray rod, a spray head fixed on the spray rod and the anti-drip valve, wherein the medicine box, the water pump, the anti-drip valve and the spray rod are sequentially connected through the liquid conveying pipe, a to-be-pressed piece of the anti-drip valve is a hose, and two ends of the hose are respectively connected with the liquid conveying pipe through connectors; the anti-drip valve is fixed on the spray rod.
In a third aspect, the invention provides a plant protection unmanned aerial vehicle, comprising a body, a horn and the spraying system.
By adopting the technical scheme, the method has the following beneficial effects: the drip-proof valve provided by the embodiment of the invention has a simple structure, and the driving piece drives the pressure-proof piece to move through the transmission piece, and the pressure-proof piece is controlled to be switched on or off after moving. The anti-drip valve can be arranged on a pipeline which needs to be controlled to be opened and closed by liquid, and has wide application range; the driving piece, the transmission piece, the pressing piece and the waiting piece are all fixed on the mounting bracket, so that the whole structure is compact, the size is small, and the installation is convenient. The spray system and the plant protection unmanned aerial vehicle are provided with the drip-proof valve, the drip-proof valve is fixed on the spray boom of the spray system through the mounting bracket and is positioned on the pipeline between the water pump and the spray head, the drip-proof valve is arranged at the end close to the spray head and used for controlling the on-off of the pipeline between the water pump and the spray head, and residual liquid medicine is prevented from flowing out through the spray head which is incompletely sealed after the spray head is closed, so that the liquid medicine is saved, and the pollution of the liquid medicine to the environment is avoided.
Drawings
FIG. 1 is a schematic diagram of an anti-drip valve according to an embodiment of the present invention;
FIG. 2 is a schematic view of a part of the structure of an anti-drip valve according to an embodiment of the present invention;
FIG. 3 is a schematic view of a structure of an anti-drip valve in a fully opened state (a fixing pin is located at a second end portion) according to an embodiment of the present invention;
FIG. 4 is a schematic view of an embodiment of the present invention, in which the drip valve is not fully opened (the fixing pin is located in the middle of the arc-shaped pushing groove);
FIG. 5 is a schematic view of a structure of an anti-drip valve in a closed state (a fixing pin is located at a first end portion) according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a compression bar according to an embodiment of the present invention;
FIG. 7 is a schematic view of a platen according to an embodiment of the present invention;
FIG. 8 is a schematic view of a platen according to another embodiment of the present invention;
fig. 9 is a schematic view of a spraying system according to an embodiment of the present invention.
In the figure:
1. steering engine; 1.1, an output shaft; 2. a rotating disc; 2.1, rotating the central part of the disc; 2.2, arc pushing grooves; 2.21, a first end; 2.22, a second end; 3. a compression bar; 3.1, axial clamping grooves; 3.11, groove walls; 4. waiting for a pressing piece; 5. a fixing pin; 6. a mounting bracket; 6.1, a bottom plate; 6.11, mounting openings; 6.2, side plates; 6.3, fixing the bracket; 6.31, through groove; 6.32, through holes; 7. a pressing plate; 7.1, a boss;
100. a medicine box; 200. an infusion tube; 300. a water pump; 400. a spray bar; 500. a spray head; 600. an anti-drip valve.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present invention and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present invention will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Unless otherwise indicated, the meaning of "a plurality" is two or more.
The invention will now be described in further detail with reference to specific examples thereof in connection with the accompanying drawings.
Examples:
the embodiment of the invention provides an anti-drip valve, which comprises a mounting bracket 6, a driving piece, a transmission piece, a pressure stopping piece and a waiting piece, wherein the driving piece, the transmission piece, the pressure stopping piece and the waiting piece are fixed on the mounting bracket 6, the transmission piece is driven by the driving piece to move, and a through groove 6.31 with two open ends is arranged on the mounting bracket 6; one end of the pressing piece is connected with the transmission piece, the other end of the pressing piece extends into the through groove 6.31, the driving piece drives the pressing piece to move through the transmission piece, and the pressing piece to be pressed is arranged in the through groove 6.31 in a penetrating mode and is controlled to be switched on and off by the moving pressing piece. The pressing piece is a hose and is used for conveying liquid, the driving piece drives the driving piece to move, the driving piece drives the pressing piece to move while the driving piece moves, the pressing piece is pressed or released after the pressing piece moves, and when the pressing piece is pressed, the infusion channel in the pressing piece is closed to prevent the liquid from flowing through. When the pressure-stopping piece moves again, the pressure-stopping piece is separated from the extrusion action of the pressure-stopping piece, and the liquid can pass through the pressure-stopping piece after the internal channel is restored.
In this embodiment, preferably, the driving member may be a steering engine 1, where the steering engine adopts a TD-8125MG model, and an output shaft 1.1 of the steering engine 1 is fixedly connected with the driving member. The steering engine 1 is started, and the output shaft 1.1 drives the transmission part to move. The driving medium can be rotary disk 2, and rotary disk 2 is the circular dish, and the output shaft 1.1 fixed connection rotary disk central part 2.1 of steering wheel 1, optionally, adopts fixed pin 5 to pass the back by rotary disk central part 2.1 and screws at the output shaft of steering wheel to it is fixed with the output shaft of steering wheel, drives the rotary disk rotation when the output shaft pivoted.
On the basis of the above embodiment, the pressure stopping piece provided in this embodiment includes a pressure lever 3, one end of the pressure lever 3 is provided with an axial clamping groove 3.1, the axial clamping groove 3.1 includes groove walls 3.11 on two sides, the rotating disk 2 is provided with an arc pushing groove 2.2, and a part of the rotating disk 2 extends into the axial clamping groove 3.1; the compression bar 3 is connected with the rotating disc 2 through a fixing pin 5, the fixing pin 5 is penetrated by a groove wall 3.11 on one side of the axial clamping groove 3.1, and penetrates through an arc-shaped pushing groove 2.2 of the rotating disc 2 and then is penetrated by a groove wall 3.11 on the other side of the axial clamping groove 3.1. Because the arc pushing groove 2.2 is arranged on the rotating disk 2, the arc pushing groove 2.2 changes the position of the opposite through groove 6.31 along with the rotation of the rotating disk 2 when the rotating disk 2 rotates, and because the position of the pressure lever 3 in the vertical direction is fixed and is influenced by the position change of the arc pushing groove 2.2, the pressure lever 3 moves linearly along with the position change, and the opposite through groove 6.31 moves reciprocally, so that the extrusion or release of a to-be-pressed piece is realized.
The steering engine 1 is internally provided with an angle sensor, so that the rotating angle of the output shaft can be sensed, and the rotating angle of the output shaft of the steering engine, namely the rotating angle of the rotating disc, is fixedly connected with the center part of the rotating disc. The arc pushing groove 2.2 is provided with two end parts, including a first end part 2.21 and a second end part 2.22, and the included angle between the two end parts and the connecting line of the central part 2.1 of the rotating disc is a right angle; the length of the first end 2.21 from the central part 2.1 of the rotating disc is 1.5-2 times, preferably 2 times, the length of the second end 2.22 from the central part of the rotating disc, and the arc pushing groove 2.2 is positioned on one side of the rotating disc near the through groove of the mounting support, and is in a convex and concave shape, namely, one side near the central part 2.1 of the rotating disc is concave inwards, so that the rotating disc 2 can freely rotate along with the output shaft of the steering engine within an angle defined by the arc pushing groove 2.2.
Because the distance from the arc-shaped pushing groove 2.2 to the central part 2.1 of the rotating disc gradually increases from the second end part 2.22 to the first end part 2.21, and the fixing pin 5 passes through the arc-shaped pushing groove 2.2 when fixing the pressing rod 3 and the rotating disc 2, the relative position of the fixing pin 5 in the arc-shaped pushing groove 2.2 is changed when the arc-shaped pushing groove 2.2 changes along with the rotating disc. When the rotary disk 2 rotates to enable the fixing pin 5 to be located at the first end part 2.21 of the arc-shaped pushing groove 2.2, the first end part 2.21 is far away from the central part 2.1 of the rotary disk, and the pressing rod 3 moves towards the inside of the through groove 6.31 to press the to-be-pressed piece along with the rotation of the rotary disk 2, so that liquid in the to-be-pressed piece is difficult to pass. When the rotary disc 2 rotates 90 degrees, the fixing pin 5 is positioned at the second end part 2.22 of the arc-shaped pushing groove 2.2, the second end part 2.22 is closer to the central part 2.1 of the rotary disc, the rotary disc 2 drives the pressing rod 3 to move to the outside of the through groove, so that the pressing piece is separated from the pressing action of the pressing rod 3, and liquid can pass through after the internal channel of the pressing piece is opened.
Because the anti-drip valve needs to be maintained for a long time when in a closed state, in order to save electric quantity and avoid continuously supplying power to the steering engine, the axis of the pressure rod and the central part of the rotating disc are positioned on the same horizontal line in the embodiment of the invention, therefore, when the anti-drip valve is in the closed state, the first end part, the central part of the rotating disc and the axis of the pressure rod are positioned on the same horizontal line, the fixed pin is regarded as a fulcrum of the lever, the thrust of the pressure rod is along the axis of the pressure rod and points to the fulcrum, and the resistance generated by the fixed pin and the central part of the rotating disc also points to the fulcrum, and the rotating disc is difficult to rotate according to the lever balance principle, so that the anti-drip valve can keep the closed state under the condition of closing the steering engine, namely the pressure piece presses the pressure piece to close the internal channel.
In order to improve the extrusion effect, the pressure stop piece further comprises a pressure plate 7, the pressure plate 7 is fixedly connected with the end part of the pressure rod 3 through a connecting piece, and the connecting piece can be a screw, a fixing pin or a screw. The contact area between the pressing plate 7 and the to-be-pressed piece is larger than the longitudinal section of the pressing rod 3.
In this embodiment, preferably, at least two bosses 7.1 are disposed on a side surface of the pressing plate 7 adjacent to the to-be-pressed piece in the through groove 6.31, each boss 7.1 is laterally and alternately distributed along the pressing plate 7, and each single boss 7.1 is vertically disposed, and each boss 7.1 is semi-cylindrical. Therefore, on one hand, the tightness during extrusion of the to-be-pressed piece can be improved, on the other hand, the abrasion degree of the to-be-pressed piece can be reduced, and the service life of the to-be-pressed piece is prolonged.
On the basis of the above embodiment, the mounting bracket of the present embodiment includes a bottom plate 6.1, a fixing frame 6.3 is disposed on the bottom plate 6.1, and the fixing frame 6.3 is provided with the through groove 6.31 with two open ends for the to-be-pressed piece to pass through; the lateral part of bottom plate 6.1 is equipped with curb plate 6.2, set up installation opening 6.11 on the bottom plate 6.1, driving piece, driving medium are fixed respectively in the both sides of installation opening 6.11 on bottom plate 6.1, the driving piece with mount 6.3 is located the same side of bottom plate 6.1, the one end of end casting die with the driving piece is connected, and the other end stretches into in the logical groove 6.31 on the mount 6.3. Specifically, steering wheel 1 is fixed in one side of installation opening 6.11, and rotary disk 2 is fixed in the opposite side of installation opening 6.11, and one side of depression bar 3 is fixed with rotary disk 2 through fixed pin 5, and the other end of depression bar 3 stretches into in the logical groove 6.31 on the mount 6.3, and through-hole 6.32 has been seted up to the nearly rotary disk 2 side of this mount 6.3, and this through-hole intercommunication logical groove, the tip of depression bar stretches into the logical inslot of mount after passing by the through-hole. The mounting bracket enables other parts of the anti-drip valve to be integrated and concentrated on the mounting bracket, and has the advantages of small volume, compact structure and convenient installation.
On the basis of the embodiment, other embodiments also provide a plant protection unmanned aerial vehicle, including fuselage, horn and sprinkler system, be equipped with flight controller on the fuselage, this sprinkler system includes medical kit, water pump, transfer line, spray lance, fixes the shower nozzle on the spray lance and anti-drip valve in the above-mentioned embodiment, medical kit, water pump, anti-drip valve and spray lance loop through the transfer line and connect, and the steering wheel of water pump, shower nozzle and anti-drip valve all is connected with flight controller, and flight controller can be according to the work of instruction control water pump, shower nozzle and steering wheel.
The medicine outlet of medical kit passes through the import of transfer line connection water pump, and the export of water pump passes through the transfer line to be connected to the drip proof valve, and the waiting of drip proof valve is the hose, and the transfer line is connected through the joint respectively at the both ends of hose, and the transfer line is connected to the spray lance again, fixes the shower nozzle on the spray lance, and the water pump is carried medical kit interior liquid medicine to the spray lance, and then spouts through the shower nozzle, and the drip proof valve is fixed on the spray lance, optionally, the curb plate of drip proof valve passes through screw or bolt fastening on the spray lance. Be used for controlling the break-make of liquid medicine, when closing water pump and shower nozzle, need not to spout the medicine, the steering wheel makes the antidrip valve be in the closed condition in order to treat the internal passage of casting die to close after unmanned aerial vehicle flight control ware's control moves, avoids remaining liquid medicine outflow in the transfer line.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An anti-drip valve, comprising:
the mounting bracket (6), the mounting bracket (6) is provided with a through groove (6.31) with two open ends;
the driving piece is fixed on the mounting bracket (6);
the transmission piece is driven by the driving piece to move;
one end of the pressure stopping piece is connected with the transmission piece, the other end of the pressure stopping piece stretches into the through groove (6.31), and the driving piece drives the pressure stopping piece to move through the transmission piece;
the to-be-pressed piece (4) is arranged in the through groove (6.31) in a penetrating way, and the on-off of the to-be-pressed piece (4) is controlled by the moving pressure-stopping piece;
the driving piece is a steering engine (1), and an output shaft (1.1) of the steering engine (1) is fixedly connected with the transmission piece;
the transmission part is a rotary disc (2), and an output shaft (1.1) of the steering engine (1) is fixedly connected with the central part of the rotary disc; the pressure stopping piece comprises a pressure rod (3), an axial clamping groove (3.1) is formed in one end of the pressure rod (3), the axial clamping groove (3.1) comprises groove walls (3.11) on two sides, an arc-shaped pushing groove (2.2) is formed in the rotating disc (2), and part of the rotating disc (2) stretches into the axial clamping groove (3.1); the compression bar (3) is connected with the rotating disc (2) through a fixing pin (5), the fixing pin (5) penetrates through a groove wall (3.11) on one side of the axial clamping groove (3.1), and penetrates through an arc-shaped pushing groove (2.2) of the rotating disc (2) and then penetrates out of a groove wall (3.11) on the other side of the axial clamping groove (3.1);
the arc pushing groove (2.2) is provided with two end parts, including a first end part (2.21) and a second end part (2.22), and the included angle between the two end parts and the connecting line of the central part (2.1) of the rotating disc is a right angle; the length of the first end part (2.21) from the central part (2.1) of the rotary disk is 1.5-2 times of the length of the second end part (2.22) from the central part (2.1) of the rotary disk;
the axis of the compression bar (3) and the central part (2.1) of the rotating disc are positioned on the same horizontal line.
2. Drip valve according to claim 1, characterized in that the pressure stop further comprises a pressure plate (7), which pressure plate (7) is fixedly connected with the end of the pressure rod (3) by means of a connection piece.
3. The drip valve according to claim 2, characterized in that at least two bosses (7.1) are arranged on the pressing plate (7) adjacent to one side surface of the pressing piece (4) in the through groove (6.31), each boss (7.1) is transversely distributed at intervals along the pressing plate (7), the single boss (7.1) is vertically arranged, and the boss (7.1) is semi-cylindrical.
4. An anti-drip valve according to any one of claims 1-3, characterized in that the mounting bracket (6) comprises a bottom plate (6.1), a fixing frame (6.3) is arranged on the bottom plate (6.1), and the fixing frame (6.3) is provided with the through groove (6.31) which is open at two ends and is used for the pressing piece (4) to pass through; the side of the bottom plate (6.1) is provided with a side plate (6.2), the bottom plate (6.1) is provided with a mounting opening (6.11), the driving piece and the transmission piece are respectively fixed on two sides of the mounting opening (6.11) on the bottom plate (6.1), the transmission piece and the fixing frame (6.3) are positioned on the same side of the bottom plate (6.1), one end of the pressure-stopping piece is connected with the transmission piece, and the other end of the pressure-stopping piece stretches into a through groove (6.31) on the fixing frame (6.3).
5. A spraying system is characterized by comprising a medicine box, a water pump, a liquid conveying pipe, a spray rod, a spray head fixed on the spray rod and the drip-proof valve according to any one of claims 1-4, wherein the medicine box, the water pump, the drip-proof valve and the spray rod are sequentially connected through the liquid conveying pipe, a to-be-pressed piece of the drip-proof valve is a hose, and two ends of the hose are respectively connected with the liquid conveying pipe through connectors; the anti-drip valve is fixed on the spray rod.
6. A plant protection unmanned aerial vehicle, comprising a fuselage, a horn, and the spray system of claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210997183.3A CN115415066B (en) | 2022-08-19 | 2022-08-19 | Drip-proof valve, spraying system and plant protection unmanned aerial vehicle |
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| CN202210997183.3A CN115415066B (en) | 2022-08-19 | 2022-08-19 | Drip-proof valve, spraying system and plant protection unmanned aerial vehicle |
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| CN115415066B true CN115415066B (en) | 2023-11-21 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2319645Y (en) * | 1998-01-14 | 1999-05-19 | 农业部南京农业机械化研究所 | Stopping anti-dripping valve |
| DE20218614U1 (en) * | 2002-11-30 | 2004-04-08 | Evertz Hydrotechnik Gmbh & Co.Kg | Preloaded controllable flow rate limiting valve, in particular, spray valve comprises a housing component which together with a valve seat is produced as a single piece |
| CN204682302U (en) * | 2015-04-14 | 2015-10-07 | 苏州蓝翱精密塑胶有限公司 | A kind of external cannula type anti-dripping valve |
| CN209288392U (en) * | 2018-12-27 | 2019-08-23 | 大英新代机械制造有限公司 | A kind of rod piece automatic control disconnecting device |
| CN110836208A (en) * | 2019-11-15 | 2020-02-25 | 邵延荣 | Unloading stop valve |
| CN210484676U (en) * | 2019-08-10 | 2020-05-08 | 佛山顺德歌林美电子产品有限公司 | Hose pinch valve and oxygen generator thereof |
| CN112081966A (en) * | 2020-09-25 | 2020-12-15 | 武芳 | Swing check valve |
| CN214183627U (en) * | 2020-05-29 | 2021-09-14 | 南京拓攻航空科技有限公司 | Spray head device and spraying device comprising same |
-
2022
- 2022-08-19 CN CN202210997183.3A patent/CN115415066B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2319645Y (en) * | 1998-01-14 | 1999-05-19 | 农业部南京农业机械化研究所 | Stopping anti-dripping valve |
| DE20218614U1 (en) * | 2002-11-30 | 2004-04-08 | Evertz Hydrotechnik Gmbh & Co.Kg | Preloaded controllable flow rate limiting valve, in particular, spray valve comprises a housing component which together with a valve seat is produced as a single piece |
| CN204682302U (en) * | 2015-04-14 | 2015-10-07 | 苏州蓝翱精密塑胶有限公司 | A kind of external cannula type anti-dripping valve |
| CN209288392U (en) * | 2018-12-27 | 2019-08-23 | 大英新代机械制造有限公司 | A kind of rod piece automatic control disconnecting device |
| CN210484676U (en) * | 2019-08-10 | 2020-05-08 | 佛山顺德歌林美电子产品有限公司 | Hose pinch valve and oxygen generator thereof |
| CN110836208A (en) * | 2019-11-15 | 2020-02-25 | 邵延荣 | Unloading stop valve |
| CN214183627U (en) * | 2020-05-29 | 2021-09-14 | 南京拓攻航空科技有限公司 | Spray head device and spraying device comprising same |
| CN112081966A (en) * | 2020-09-25 | 2020-12-15 | 武芳 | Swing check valve |
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| Publication number | Publication date |
|---|---|
| CN115415066A (en) | 2022-12-02 |
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Denomination of invention: An anti drip valve, spraying system, and plant protection drone Effective date of registration: 20231225 Granted publication date: 20231121 Pledgee: Nanjing Zidong sub branch of Bank of Nanjing Co.,Ltd. Pledgor: TUOGONG (NANJING) ROBOT Co.,Ltd. Registration number: Y2023980074009 |