CN113578551A - Spray body for connecting two-way water valve and nozzle body thereof - Google Patents
Spray body for connecting two-way water valve and nozzle body thereof Download PDFInfo
- Publication number
- CN113578551A CN113578551A CN202110857807.7A CN202110857807A CN113578551A CN 113578551 A CN113578551 A CN 113578551A CN 202110857807 A CN202110857807 A CN 202110857807A CN 113578551 A CN113578551 A CN 113578551A
- Authority
- CN
- China
- Prior art keywords
- valve
- central
- hole
- water
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/005—Special arrangements or adaptations of the spraying or distributing parts, e.g. adaptations or mounting of the spray booms, mounting of the nozzles, protection shields
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a spray body for connecting a two-way water valve and a nozzle body thereof, wherein the spray body comprises a water inlet, a water outlet and a backflow port, and the water inlet is communicated with the water outlet through the backflow port; the backflow port comprises an inner cavity and an outer cavity which is annularly arranged on the outer side of the inner cavity, the inner cavity is communicated with the water outlet, and the outer cavity is communicated with the water inlet; the inner cavity is used for communicating with a central through hole of the bidirectional water through valve, and the outer cavity is used for communicating with a plurality of peripheral through holes of the bidirectional water through valve; the two-way water valve, the water inlet and the water outlet are communicated by the inner cavity and the outer cavity of the backflow port, so that the connection between the spraying body and the two-way water valve can be realized, the two-way water valve can be applied to the field of spray heads of plant protection machines to control the on-off of pesticide spraying, the water inlet is led to the plurality of peripheral through holes and then enters the backflow cavity of the two-way water valve, the pressure reduction effect can be achieved, and the effect of plugging and sealing the central through hole can be improved.
Description
Technical Field
The invention relates to the field of agricultural precision pesticide application, in particular to a spraying body connected with a bidirectional water passing valve and a nozzle body thereof.
Background
However, plant protection machines and pesticide application technologies are relatively laggard, the pesticide dosage in China is about 31 ten thousand tons in the last five years, the pesticide utilization rate is only about 35 percent, and the 'quantity control and efficiency improvement' becomes a necessary measure for controlling the growth of pesticides, and the problems of low pesticide effective utilization rate, excessive residue, environmental pollution and the like still exist. With the continuous development of precision agriculture and intelligent agriculture, the agricultural machinery has greatly improved in the aspects of automation and intellectualization. In the field of agricultural plant protection, the precision spraying technology is an important branch of precision agriculture, and has great advantages as a novel spraying technology on demand.
Chinese patent application publication No. CN 110973096a discloses a pesticide spray head for a plant protection unmanned aerial vehicle, which comprises a connecting pipe, wherein the outer wall of the connecting pipe is provided with threads, the lower end of the connecting pipe is provided with a spraying frame, the lower end of the spraying frame is provided with a spraying port, the side wall of the spraying frame is uniformly provided with connecting through holes along the circumferential direction, the connecting through holes are internally provided with communicating mechanisms, and the outer wall of the spraying frame is uniformly provided with direction adjusting mechanisms along the circumferential direction; this scheme can spray the pesticide according to the angle of spraying of regulation, can reduce the influence that receives weather wind-force influence, guarantees the effect of evenly spraying the pesticide in different operational environment, but this scheme does not control the break-make of whether the shower nozzle sprays the medicine, does not have relevant record yet.
Application publication number is CN 109550608A's chinese patent discloses a regulation formula plant protection unmanned aerial vehicle pesticide sprays shower nozzle, comprising an outer tube, the inner tube has been cup jointed to the inside of outer tube, and the bottom fixed connection of annular fixed plate and inner tube is passed through to the bottom of outer tube, space between outer tube and the inner tube is the spray liquor chamber, the middle part fixedly connected with feed liquor pipe on outer tube top, and the bottom and the spray liquor chamber intercommunication of feed liquor pipe, the middle part fixedly connected with flow control valve on inner tube top, flow control valve's top and the bottom intercommunication of feed liquor pipe, that is to say, this scheme comes the flow to control the shower nozzle through setting up flow control valve, although can adjust the flow, but unable effectual realization is to the break-make that the shower nozzle sprayed, and, flow control valve's frequent regulation will cause its reliability to reduce.
Chinese patent application publication No. CN 107654659 a discloses a simple valve core, wherein a cover is clamped at the bottom of a valve body, a fixed ceramic sheet is hermetically arranged at the inner side of the cover, a communicating water outlet is oppositely arranged in the middle of the cover and the fixed ceramic sheet, an opposite water inlet is arranged at one side of the water outlet, the outer edge of the upper end of the fixed ceramic sheet is hermetically clamped at the lower end of a sealed fixed seat, the upper end of the sealed fixed seat is clamped at the inner side of the valve body, a valve rod is hermetically sleeved in the sealed fixed seat, the upper end of the valve rod extends out of the valve body, the lower end of the valve rod is hermetically clamped at the top end of the water outlet in the middle of the fixed ceramic sheet, the upper end of the valve rod is lifted to separate the lower end of the valve rod from the water outlet, that is, the scheme can control the opening and closing of the water outlet by the axial reciprocating movement of the valve rod, but the valve core of the type is generally applied to the field of return valves (cold and hot water valves), the water inlets are respectively communicated with cold water and then flow out of the water outlet after being mixed, the prior art does not have records about the application of the valve in the field of spray heads for spraying pesticides on plant protection machines, and the prior art does not have corresponding structures for reference.
Disclosure of Invention
The invention aims to provide a spray body for connecting a two-way water valve and a nozzle body thereof, aiming at solving the problems in the prior art, a backflow port is arranged on the spray body, a plurality of peripheral through holes and water inlets of the two-way water valve are communicated by an outer cavity of the backflow port, and a central through hole and a water outlet of the two-way water valve are communicated by an inner cavity of the backflow port, so that the connection with the two-way water valve can be realized by the spray body, the two-way water valve can be further applied to the field of spray heads of plant protection machines to control the on-off of pesticide spraying, and the water inlets are led to the plurality of peripheral through holes and then enter the backflow cavity of the two-way water valve, so that the pressure reduction effect can be achieved, and the effect of plugging and sealing the central through hole can be further improved.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a spray body for connecting a two-way water valve, which comprises a water inlet, a water outlet and a backflow port, wherein the water inlet is communicated with the water outlet through the backflow port; the backflow port comprises an inner cavity and an outer cavity which is annularly arranged on the outer side of the inner cavity, the inner cavity is communicated with the water outlet, and the outer cavity is communicated with the water inlet; the inner cavity is used for communicating with a central through hole of the bidirectional water through valve, and the outer cavity is used for communicating with a plurality of peripheral through holes of the bidirectional water through valve.
Preferably, the spray body is of a T-shaped structure, the water inlet and the water outlet are positioned on two support arms on the same axis, and the backflow port is positioned on the support arm in the other vertical direction.
Preferably, the backflow port comprises an outer cylinder and an inner cylinder sleeved in the outer cylinder, the inner cavity is formed in the inner cylinder, and the outer cavity is formed between the inner cylinder and the outer cylinder.
The invention also provides a nozzle body, which comprises the spraying body, a nozzle connected with the water outlet and the two-way water valve connected with the backflow port; and a valve core used for plugging the central through hole is arranged at the central through hole.
Preferably, the bidirectional water valve comprises a barrel-shaped body, a backflow cavity communicating the central through hole and the peripheral through hole is formed inside the barrel-shaped body, and the central through hole and the peripheral through hole are formed at the bottom of the barrel-shaped body; the bottom of the barrel-shaped body extends to a direction far away from the barrel-shaped body to form a first insertion part, and the first insertion part is inserted into the outer cavity and is in sealed connection with the side wall of the outer cavity; the central through hole extends in the direction far away from the barrel-shaped body to form a second insertion part, and the second insertion part is inserted into the inner cavity and connected with the side wall of the inner cavity.
Preferably, a plurality of the peripheral through holes are uniformly arranged around the central through hole in a surrounding manner.
Preferably, the valve core is a normally closed valve core, the normally closed valve core is connected with a first electromagnetic structure and a return spring, the normally closed valve core keeps closing the central through hole under the action of the return spring, and the normally closed valve core can move away from the central through hole under the action of the first electromagnetic structure.
Preferably, the first electromagnetic structure includes a first electromagnetic coil and a first fixed iron core arranged in the first electromagnetic coil, the first fixed iron core is coaxial with the normally closed valve element, the return spring is sleeved outside the normally closed valve element, one end of the return spring abuts against the normally closed valve element, and the other end of the return spring abuts against the first fixed iron core.
Preferably, the valve core is a normally open valve core, the normally open valve core is connected with a second electromagnetic structure and a return spring, the normally open valve core is kept away from the central through hole under the action of the return spring, and the normally open valve core can be close to and close the central through hole under the action of the second electromagnetic structure.
Preferably, the second electromagnetic structure includes a second electromagnetic coil and a second fixed iron core arranged in the second electromagnetic coil, a connecting rod is arranged in the second fixed iron core in a sleeved mode, one end of the connecting rod is connected with the normally open type valve core, the other end of the connecting rod is connected with a movable iron core, the movable iron core and the normally open type valve core are respectively located on two sides of the second fixed iron core, the second movable iron core and the normally open type valve core are coaxially arranged, the reset spring is sleeved on the outer side of the connecting rod, one end of the reset spring abuts against the movable iron core, and the other end of the reset spring abuts against the second fixed iron core.
Compared with the prior art, the invention has the following technical effects:
(1) the invention can realize the connection with the two-way water valve by utilizing the spraying body by arranging the backflow port on the spraying body, communicating a plurality of peripheral through holes and a water inlet of the two-way water valve by utilizing the outer cavity of the backflow port and communicating the central through hole and the water outlet of the two-way water valve by utilizing the inner cavity of the backflow port, further applying the two-way water valve to the field of the spray head of a plant protection machine to control the on-off of pesticide spraying, leading the water inlet to the plurality of peripheral through holes and then entering the backflow cavity of the two-way water valve, forming the effect of reducing the pressure of the pore plate, reducing the sealing requirement in the backflow cavity after reducing the pressure of the liquid flow of the water inlet, thereby improving the effect of plugging and sealing the central through hole and reducing the risk of leakage;
(2) the invention adopts the valve core coaxial with the central through hole for plugging, the valve core moves in an axial reciprocating way, the movement mode is simple, the integral structure is simple, the operation can be frequently carried out, the high-frequency on-off of the nozzle is realized, the flow is changed under the condition that the pressure at the nozzle is kept constant, the influence of the pressure change on the atomizing effect of the nozzle is avoided, and the invention has important practical significance for precise variable pesticide application in the farmland;
(3) the invention controls the axial movement of the valve core through the electromagnetic structure, the control is accurate, the action is rapid, and the flow of the central through hole can be controlled by controlling the suction force of the electromagnetic structure, thereby further improving the accuracy and the intellectualization of precision spraying;
(4) the invention can be set to be a normally open type or a normally closed type, the normally open type is selected when the nozzle which is required to be frequently positioned at an open position is selected, the normally closed type is selected when the nozzle which is required to be frequently positioned at a closed position is selected, corresponding selection can be carried out according to the use requirement, and the energy loss for the on-off of the nozzle is reduced on the basis of keeping the spraying effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a general schematic view of a normally closed configuration of the present invention;
FIG. 2 is a schematic diagram of the exploded structure of FIG. 1;
FIG. 3 is a schematic view of the normally closed configuration of the present invention in an operational state;
FIG. 4 is a schematic diagram of the normally closed configuration of the present invention in its normal state;
FIG. 5 is a general schematic view of a normally open configuration of the present invention;
FIG. 6 is a schematic diagram of the exploded structure of FIG. 5;
FIG. 7 is a schematic view of the normally open configuration of the present invention in an operational state;
FIG. 8 is a schematic diagram of the normally open configuration of the present invention in a normal state;
wherein, 1, a first electromagnetic structure; 11. locking the nut; 12. a first electromagnetic coil; 13. a first fixed iron core; 14. a first terminal post; 2. a connecting nut; 3. spraying body; 31. a water inlet; 32. a return port; 33. a water outlet; 4. a nozzle; 5. a two-way water valve; 51. a central through hole; 52. a peripheral through hole; 53. a reflux cavity; 6. a normally closed valve element; 7. a return spring; 10. a second electromagnetic structure; 101. a sleeve; 102. a second electromagnetic coil; 103. a second stationary core; 104. a movable iron core; 105. a connecting rod; 106. and a second terminal.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a spray body for connecting a two-way water valve and a nozzle body thereof, aiming at solving the problems in the prior art, a backflow port is arranged on the spray body, a plurality of peripheral through holes and water inlets of the two-way water valve are communicated by utilizing an outer cavity of the backflow port, and a central through hole and a water outlet of the two-way water valve are communicated by utilizing an inner cavity of the backflow port, so that the spray body can be connected with the two-way water valve, the two-way water valve can be further applied to the field of spray heads of plant protection machines to control the on-off of pesticide spraying, and the water inlets are led to the plurality of peripheral through holes and then enter the backflow cavity of the two-way water valve, so that the pressure reduction effect can be achieved, and the effect of plugging and sealing the central through hole can be further improved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 3 to 4 and 7 to 8, the present invention provides a spray body 3 for connecting a two-way water valve 5, wherein the spray body 3 comprises a water inlet 31, a water outlet 33 and a return port 32, wherein the water inlet 31 and the water outlet 33 are communicated through the return port 32, that is, the water inlet 31 is communicated with the return port 32, the water outlet 33 is communicated with the return port 32, but the water inlet 31 is not directly communicated with the water outlet 33, and thus the return port 32 can be controlled to control the connection and disconnection between the water inlet 31 and the water outlet 33. Specifically, the return port 32 includes an inner chamber and an outer chamber annularly disposed outside the inner chamber, the inner chamber is communicated with the water outlet 33, and the outer chamber is communicated with the water inlet 31. The inner chamber is adapted to communicate with a central through hole 51 of the two-way water passage valve 5, and the outer chamber is adapted to communicate with a plurality of peripheral through holes 52 of the two-way water passage valve 5. The two-way water passage valve 5 includes a central through hole 51, a peripheral through hole 52 circumferentially provided around the central through hole 51, and a return chamber 53 communicating with both the central through hole 51 and the peripheral through hole 52. The liquid flow enters the jet body 3 from the water inlet 31, then enters the peripheral through holes 52 of the two-way water valve 5 through the outer cavity of the return port 32, enters the return cavity 53 through the peripheral through holes 52, and finally reaches the water outlet 33 and flows out after the liquid flow in the return cavity 53 enters the inner cavity of the return port 32 through the central through hole 51. The invention can realize the connection with the two-way water valve 5 by the spraying body 3 by arranging the return port 32 on the spraying body 3, communicating a plurality of peripheral through holes 52 of the two-way water valve 5 with the water inlet 31 by utilizing the outer cavity of the return port 32 and communicating the central through hole 51 of the two-way water valve 5 with the water outlet 33 by utilizing the inner cavity of the return port 32, further can apply the two-way water valve 5 to the spray head field of a plant protection machine to control the on-off of pesticide spraying, and can form the effect of reducing the pressure of the pore plate by leading the water inlet 31 to the plurality of peripheral through holes 52 and then entering the return cavity 53 of the two-way water valve 5, and can reduce the requirement on sealing in the return cavity 53 after reducing the pressure of the liquid flow of the water inlet 31, thereby improving the effect of sealing the central through hole 51 and reducing the risk of leakage.
The overall structure of the spray body 3 can be set to be a T-shaped structure, which is similar to the structural form of a tee joint, except that the water inlet 31 and the water outlet 33 are not directly communicated. Specifically, the water inlet 31 and the water outlet 33 may be located on two arms of the same axis, and the return port 32 may be located on the other arm in the vertical direction. Therefore, the water inlet direction is the water outlet direction, the on-off control of the water flow can be carried out along the water flow direction without changing the water flow direction, and the whole installation mode is more flexible.
In the T-shaped spraying body 3, in order to realize on-off control between the water inlet 31 and the water outlet 33, the backflow port 32 is divided into an inner barrel and an outer barrel, the inner barrel is sleeved in the outer barrel, an inner cavity is formed in the inner barrel, and an outer cavity is formed between the inner barrel and the outer barrel. At this time, the outer cavity is an annular cavity, and the water flow entering from the water inlet 31 firstly fills the annular outer cavity and then enters the return cavity 53; the inner chamber is in right angle communication with the water outlet 33 and the central through hole 51 is arranged coaxially with the inner chamber.
As shown in fig. 2 to 4 and 6 to 8, the present invention also provides a nozzle body comprising the above-described nozzle body 3, a nozzle 4 connected to a water outlet 33 of the nozzle body 3, and a two-way water passage valve 5 connected to a return port 32. The central through hole 51 of the two-way water passage valve 5 communicates with the inner chamber of the return port 32, and the peripheral through hole 52 of the two-way water passage valve 5 communicates with the outer chamber of the return port 32. A valve core for plugging the central through hole 51 is arranged at the central through hole 51, and it should be noted that the valve core can be coaxially arranged with the central through hole 51, and on-off control of the central through hole 51 is realized by axial movement of the valve core; in addition, the valve core can be arranged in a rotating mode, namely, the valve core is in contact with the surface of the two-way water passing valve 5, and the central through hole 51 can be opened or closed by rotating the relative position of the valve core and the central through hole 51 so as to realize on-off control. The end face of the valve core opposite to the central through hole 51 can be provided with a groove, at the moment, the valve core is equivalently provided with an annular bulge, the area of the end face of the valve core can be reduced, the whole end face does not need to be processed into a sealing plane, the processing difficulty is reduced, in addition, structures such as a sealing ring and the like can be arranged in the groove, and the sealing effect is further improved.
The two-way water valve 5 may include a barrel-shaped body, a return cavity 53 communicating the central through hole 51 and the peripheral through hole 52 is formed inside the barrel-shaped body, the central through hole 51 and the peripheral through hole 52 are opened at the bottom of the barrel-shaped body, the peripheral through hole 52 is disposed around the central through hole 51, the diameter of the single peripheral through hole 52 is smaller than that of the central through hole 51, and the sum of the areas of the plurality of peripheral through holes 52 may be set as required, for example, equal to the area of the central through hole 51. The bottom of bucket type body extends to the direction of keeping away from the bucket type body and forms first grafting portion, and first grafting portion inserts the lateral wall sealing connection of the outer intracavity of backward flow mouth 32 and exocoel, and at this moment, the diameter of first grafting portion should equal the internal diameter of exocoel, can also be provided with the sealing washer in grafting department to improve sealed effect. The central through hole 51 extends to the direction far away from the barrel-shaped body to form a second insertion part, the second insertion part is inserted into the inner cavity of the backflow port 32 and is connected with the side wall of the inner cavity, at the moment, the diameter of the second insertion part is equal to the inner diameter of the inner cavity, and similarly, another sealing ring can be arranged at the insertion part to improve the sealing effect. After the two-way water valve 5 and the spray body 3 are mounted, the connecting nut 2 may be provided outside the two-way water valve 5, and the connecting nut 2 wraps the two-way water valve 5 inside and is screwed to the outer wall of the return port 32, so that the two-way water valve 5 is fixed to the end face of the return port 32 in a close contact manner.
Further, a plurality of peripheral through holes 52 may be uniformly arranged around the central through hole 51, and the number of the through holes may be reasonably set according to parameters such as the size of the aperture and the total size of the area of the hole, for example, 4, 5, or 6.
As shown in fig. 1 to 4, the valve element may be a normally closed valve element 6, that is, the normally closed valve element 6 blocks the central through hole 51 in a normal state (as shown in fig. 4), and the normally closed valve element 6 may leave the central through hole 51 to allow the liquid to flow in an operating state (as shown in fig. 3). In order to realize the control state of the normally closed valve core 6, the normally closed valve core 6 can be connected with the first electromagnetic structure 1 and the return spring 7, the normally closed valve core 6 keeps closing the central through hole 51 under the action of the return spring 7, and at the moment, the return spring 7 pushes the normally closed valve core 6 to be attached to the two-way water valve 5; under the action of the first solenoid structure 1, the normally closed valve element 6 can be attracted by the first solenoid structure 1 to move away from the central through hole 51 and toward the first solenoid structure 1, and it should be noted that the normally closed valve element 6 should have a property of being attracted by electromagnetism, such as containing or being made of ferromagnetic metal.
The first electromagnetic structure 1 may include a first electromagnetic coil 12 and a first stator core 13 disposed in the first electromagnetic coil 12, wherein one end of the first stator core 13 passes through the first electromagnetic coil 12 and is locked and fixed by a lock nut 11. The first electromagnetic coil 12 is provided with a first terminal 14, and after the power is switched on, the first electromagnetic structure 1 can generate a magnetic attraction effect to attract and move the normally closed valve element 6. First definite iron core 13 and the coaxial setting of normal close formula case 6 can set first definite iron core 13 to two sections, and the one end that is close to normal close formula case 6 is provided with the recess that can hold normal close formula case 6, can hold into this recess with its attraction when attracting normal close formula case 6. The cover of reset spring 7 is established in the normal close formula case 6 outside, and reset spring 7's one end butt is on normal close formula case 6, the other end butt is on first definite iron core 13, that is to say, can be provided with the boss or other location structure of butt reset spring 7 on the normal close formula case 6, can be provided with the step hole structure on the first definite iron core 13 and be used for butt reset spring 7, therefore, under the normality, utilize reset spring 7's elastic force effect, can control normal close formula case 6 and locate the state at closed central through-hole 51, and then can overcome reset spring 7's elasticity attraction normal close formula case 6 and keep away from two-way limbers 5 and remove after first electromagnetic structure 1 circular telegram. It should be noted that, can be through first terminal 14 connection controlling means, controlling means can adjust the size and the duration of voltage, and then can control the size and the duration of first electromagnetic structure 1 electromagnetic attraction, changes the duration of electromagnetic attraction through adjusting the proportion of PWM voltage signal in an on-off cycle, reaches the good effect of accurate control of flow.
As shown in fig. 5 to 8, the valve core may be a normally open valve core 60, that is, the normally open valve core 60 is away from the central through hole 51 of the two-way water valve 5 in a normal state (as shown in fig. 8), and the normally open valve core 60 may block the central through hole 51 in an operating state (as shown in fig. 7). In order to realize the control state of the normally open valve core 60, the normally open valve core 60 can be connected with the second electromagnetic structure 10 and the return spring 7, the normally open valve core 60 is kept away from the central through hole 51 under the action of the return spring 7, and at the moment, the return spring 7 pushes the normally open valve core 60 away from the two-way water valve 5; under the action of the second electromagnetic structure 10, the normally open valve core 60 can approach and close the central through hole 51, it should be noted that what the second electromagnetic structure 10 attracts when energized to generate magnetism should not be the normally open valve core 60, but should be a structure such as a movable iron core 104 connected with the normally open valve core 60 and passing through the second electromagnetic coil 102, and at this time, the normally open valve core 60 may be made of a non-ferromagnetic material.
The second solenoid structure 10 may include a second solenoid coil 102 and a second plunger 103 disposed in the second solenoid coil 102, the second solenoid coil 102 is provided with a second terminal 106, and after the power is turned on, the second solenoid structure 10 can generate a magnetic attraction action to move the normally open valve element 60 close to the central through hole 51 of the two-way water valve 5. The second fixed core 103 is provided with a connecting rod 105 in a sleeved manner, one end of the connecting rod 105 is connected with the normally open type valve core 60, the other end of the connecting rod 105 is connected with the movable core 104, and the movable core 104 and the normally open type valve core 60 are respectively located on two sides of the second fixed core 103, that is, when the second electromagnetic structure 10 is electrified, the movable core 104 attracts the second electromagnetic structure, the movable core 104 moves towards the direction close to the second fixed core 103, and at the moment, under the action of the connecting rod 105, the normally open type valve core 60 moves towards the direction away from the second fixed core 103, that is, towards the direction close to the two-way water valve 5. The second movable iron core 104 is coaxially arranged with the normally open valve core 60, and a sleeve 101 can be further arranged, the sleeve 101 is connected to one end, away from the normally open valve core 60, of the second fixed iron core 103, and the movable iron core 104 and the connecting rod 105 penetrate through and are sleeved in the sleeve 101, so that the movement direction of the normally open valve core 60 is guided. The return spring 7 can be sleeved outside the connecting rod 105, one end of the return spring 7 abuts against the movable iron core 104, and the other end of the return spring 7 abuts against the second fixed iron core 103, that is, a boss or other positioning structure abutting against the return spring 7 can be arranged on the movable iron core 104, or the diameter of the movable iron core 104 is directly set to be larger than that of the connecting rod 105, and a step shape is formed at the connecting position of the movable iron core 104 and the connecting rod 105. A boss or other positioning structure may also be provided on the second stationary core 103 for abutting against the return spring 7. Therefore, in the normal state, the movable iron core 104 can be controlled to be located at a position away from the two-way water passage valve 5 by the elastic force of the return spring 7, so that the normally open type valve core 60 is located at a position away from the two-way water passage valve 5, that is, the central through hole 51 is in an open state. After the second electromagnetic structure 10 is energized, the plunger 104 is attracted to move close to the two-way water valve 5 against the elastic force of the return spring 7, so that the normally open valve element 60 moves close to the two-way water valve 5. It should be noted that, the control device can be connected to the second terminal 106, and the control device can adjust the magnitude and duration of the voltage, and then can control the magnitude and duration of the electromagnetic attraction of the second electromagnetic structure 10, and the duration of the electromagnetic attraction is changed by adjusting the duty ratio of the PWM voltage signal in an on-off period, so as to achieve a good effect of accurately controlling the flow.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. The utility model provides a spout the body for connecting two-way water valve which characterized in that: the water inlet and the water outlet are communicated through the backflow port; the backflow port comprises an inner cavity and an outer cavity which is annularly arranged on the outer side of the inner cavity, the inner cavity is communicated with the water outlet, and the outer cavity is communicated with the water inlet; the inner cavity is used for communicating with a central through hole of the bidirectional water through valve, and the outer cavity is used for communicating with a plurality of peripheral through holes of the bidirectional water through valve.
2. The spray body for connecting a two-way water valve as recited in claim 1, wherein: the spray body is of a T-shaped structure, the water inlet and the water outlet are positioned on two support arms on the same axis, and the backflow port is positioned on the support arm in the other vertical direction.
3. The spray body for connecting a two-way water valve as recited in claim 2, wherein: the backflow port comprises an outer barrel and an inner barrel sleeved in the outer barrel, the inner cavity is formed in the inner barrel, and the outer cavity is formed between the inner barrel and the outer barrel.
4. A nozzle body, characterized by: comprising a spray body according to any one of claims 1 to 3, a nozzle connected to the water outlet and the two-way water valve connected to the return port; and a valve core used for plugging the central through hole is arranged at the central through hole.
5. The nozzle body of claim 4, wherein: the bidirectional water passing valve comprises a barrel-shaped body, a backflow cavity communicated with the central through hole and the peripheral through holes is formed inside the barrel-shaped body, and the central through hole and the peripheral through holes are formed in the bottom of the barrel-shaped body; the bottom of the barrel-shaped body extends to a direction far away from the barrel-shaped body to form a first insertion part, and the first insertion part is inserted into the outer cavity and is in sealed connection with the side wall of the outer cavity; the central through hole extends in the direction far away from the barrel-shaped body to form a second insertion part, and the second insertion part is inserted into the inner cavity and connected with the side wall of the inner cavity.
6. The nozzle body of claim 5, wherein: the peripheral through holes are uniformly arranged around the central through hole in a surrounding mode.
7. The nozzle body of any one of claims 4 to 6, wherein: the valve core is a normally closed valve core, the normally closed valve core is connected with a first electromagnetic structure and a return spring, the normally closed valve core keeps closing the central through hole under the action of the return spring, and the normally closed valve core can move away from the central through hole under the action of the first electromagnetic structure.
8. The nozzle body of claim 7, wherein: the first electromagnetic structure comprises a first electromagnetic coil and a first fixed iron core arranged in the first electromagnetic coil, the first fixed iron core and the normally-closed valve element are coaxially arranged, the reset spring is sleeved on the outer side of the normally-closed valve element, one end of the reset spring is abutted to the normally-closed valve element, and the other end of the reset spring is abutted to the first fixed iron core.
9. The nozzle body of any one of claims 4 to 6, wherein: the valve core is a normally open type valve core, the normally open type valve core is connected with a second electromagnetic structure and a return spring, the normally open type valve core is kept away from the central through hole under the action of the return spring, and the normally open type valve core can be close to and seal the central through hole under the action of the second electromagnetic structure.
10. The nozzle body of claim 9, wherein: the second electromagnetic structure comprises a second electromagnetic coil and a second fixed iron core arranged in the second electromagnetic coil, a connecting rod is arranged in the second fixed iron core in a sleeved mode, one end of the connecting rod is connected with the normally-open type valve core, the other end of the connecting rod is connected with a movable iron core, the movable iron core and the normally-open type valve core are respectively located on two sides of the second fixed iron core, the second movable iron core and the normally-open type valve core are coaxially arranged, the reset spring is sleeved on the outer side of the connecting rod, one end of the reset spring is abutted to the movable iron core, and the other end of the reset spring is abutted to the second fixed iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110857807.7A CN113578551B (en) | 2021-07-28 | 2021-07-28 | Spray body for connecting two-way water valve and nozzle body thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110857807.7A CN113578551B (en) | 2021-07-28 | 2021-07-28 | Spray body for connecting two-way water valve and nozzle body thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113578551A true CN113578551A (en) | 2021-11-02 |
| CN113578551B CN113578551B (en) | 2022-09-27 |
Family
ID=78251090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110857807.7A Active CN113578551B (en) | 2021-07-28 | 2021-07-28 | Spray body for connecting two-way water valve and nozzle body thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113578551B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201412522Y (en) * | 2009-05-24 | 2010-02-24 | 奉化市星宇电子有限公司 | Normally opened type double-spring solenoid valve |
| CN201731148U (en) * | 2009-10-29 | 2011-02-02 | 杨迎龙 | Normally open electromagnetic valve |
| KR20160105051A (en) * | 2015-02-27 | 2016-09-06 | 정우정 | Water dispenser |
| CN208268512U (en) * | 2017-12-15 | 2018-12-21 | 北京威派格科技发展有限公司 | Anti-vibration safety electromagnetic pressure reducing valve |
| CN110785563A (en) * | 2018-09-30 | 2020-02-11 | 深圳市大疆软件科技有限公司 | Pump device of agricultural plant protection machine and agricultural plant protection machine |
| CN210770408U (en) * | 2019-09-27 | 2020-06-16 | 袁琼 | Water valve |
| CN210830953U (en) * | 2019-11-13 | 2020-06-23 | 重庆理工大学 | Anti-drip atomization three-way pipe |
| CN111659552A (en) * | 2020-07-27 | 2020-09-15 | 合肥多加农业科技有限公司 | Integrated variable nozzle |
| CN213145559U (en) * | 2020-08-17 | 2021-05-07 | 浙江理工大学 | Labyrinth disc pressure reducing valve |
-
2021
- 2021-07-28 CN CN202110857807.7A patent/CN113578551B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201412522Y (en) * | 2009-05-24 | 2010-02-24 | 奉化市星宇电子有限公司 | Normally opened type double-spring solenoid valve |
| CN201731148U (en) * | 2009-10-29 | 2011-02-02 | 杨迎龙 | Normally open electromagnetic valve |
| KR20160105051A (en) * | 2015-02-27 | 2016-09-06 | 정우정 | Water dispenser |
| CN208268512U (en) * | 2017-12-15 | 2018-12-21 | 北京威派格科技发展有限公司 | Anti-vibration safety electromagnetic pressure reducing valve |
| CN110785563A (en) * | 2018-09-30 | 2020-02-11 | 深圳市大疆软件科技有限公司 | Pump device of agricultural plant protection machine and agricultural plant protection machine |
| CN210770408U (en) * | 2019-09-27 | 2020-06-16 | 袁琼 | Water valve |
| CN210830953U (en) * | 2019-11-13 | 2020-06-23 | 重庆理工大学 | Anti-drip atomization three-way pipe |
| CN111659552A (en) * | 2020-07-27 | 2020-09-15 | 合肥多加农业科技有限公司 | Integrated variable nozzle |
| CN213145559U (en) * | 2020-08-17 | 2021-05-07 | 浙江理工大学 | Labyrinth disc pressure reducing valve |
Non-Patent Citations (2)
| Title |
|---|
| XIANG YIN: "Development of an automatically guided rice transplanter using RTK-GNSS and IMU", 《IFAC PAPERSONLINE》 * |
| 印祥: "高地隙施药机自动驾驶系统研制与试验", 《农业工程学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113578551B (en) | 2022-09-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2600932B2 (en) | Solenoid valve and solenoid valve connection structure | |
| US5676342A (en) | Proportional flow valve with diaphragm pressure member | |
| DE2836226C2 (en) | ||
| US4558844A (en) | Direct acting valve assembly | |
| EP0195261B1 (en) | Magnetic valve, particularly a fuel quantity control valve | |
| EP0331200B1 (en) | Fuel injection nozzle | |
| EP0717220A1 (en) | Solenoid valve for irrigation control units | |
| DE3305039C2 (en) | ||
| US4848725A (en) | Valve construction | |
| CN111659552A (en) | Integrated variable nozzle | |
| US4453700A (en) | Fluid control valve assembly | |
| CN113578551B (en) | Spray body for connecting two-way water valve and nozzle body thereof | |
| CN203175733U (en) | Control jet flat valve structure of electronic control fuel injector | |
| JPS6453057A (en) | Fuel injection nozzle | |
| US3421732A (en) | Fluidic controlled water valve or the like | |
| CN1323238C (en) | Fuel injector | |
| CN212297662U (en) | Adapter for use with a spray body and a solenoid valve | |
| JPH0473036B2 (en) | ||
| CN208431377U (en) | A kind of solenoid valve with magnet | |
| CN214118365U (en) | Thread type oil injection valve | |
| CN111692352A (en) | Adapter for use with a spray body and a solenoid valve | |
| CN115350825B (en) | Integrated two-stage variable control spray head | |
| CN215831157U (en) | Improved fluid electromagnetic valve | |
| CN218554425U (en) | Drip-proof atomizing nozzle device | |
| JPS6210549Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |