CN112166274A - Electromagnetic valve, airborne spraying system and agricultural plant protection machine - Google Patents
Electromagnetic valve, airborne spraying system and agricultural plant protection machine Download PDFInfo
- Publication number
- CN112166274A CN112166274A CN201980032797.4A CN201980032797A CN112166274A CN 112166274 A CN112166274 A CN 112166274A CN 201980032797 A CN201980032797 A CN 201980032797A CN 112166274 A CN112166274 A CN 112166274A
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- Prior art keywords
- iron core
- hole
- pressure relief
- movable iron
- diaphragm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0089—Regulating or controlling systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
Abstract
A solenoid valve (200) comprises a shell (210), a diaphragm (220) which is installed on the shell and can seal a liquid outlet of a pipeline, a movable iron core (230), a static iron core (240), a coil assembly (250), an elastic piece (260) and a pressure relief adjusting piece (270), wherein one end of the movable iron core is abutted to one side, away from the liquid outlet, of the diaphragm, the static iron core is arranged on one side, away from the diaphragm, of the movable iron core, the static iron core is provided with a through hole (241), the movable iron core can slide in the through hole, and the elastic piece is located in the through hole and abutted to the; the pressure relief regulating piece is inserted into the through hole; when the pressure relief adjusting piece moves towards the opening of the through hole in the through hole, the pressure relief adjusting piece can drive the elastic piece to stretch; when the solenoid valve is in a fault state, the pressure relief adjusting piece is operated, so that the pressure relief adjusting piece moves towards the opening of the through hole in the through hole, the elastic piece recovers deformation, the movable iron core is driven to reset, and the diaphragm is separated from the liquid outlet. An airborne spraying system and an agricultural plant protection machine are also disclosed.
Description
Technical Field
The invention relates to the field of control valves, in particular to an electromagnetic valve, an airborne spraying system and an agricultural plant protection machine.
Background
In industrial and agricultural applications, there is often a need for automated control of fluids (gases or liquids) in pipes. The electromagnetic valve is a relatively common automatic control component for controlling the opening and closing of a pipeline (or switching different pipelines), and the opening and closing action is realized by electrifying a coil in the electromagnetic valve to generate a magnetic field and further generating electromagnetic force to attract an iron core. A return spring is typically provided in the solenoid valve to cause the solenoid valve to be normally open or normally closed when not energized. The solenoid valve generally has only two states of on/off, so the solenoid valve has the advantages of simple action, high reliability and the like and is widely applied.
However, the solenoid valve inevitably has some scenes that the solenoid valve cannot act due to structural or electrical faults, and when the solenoid valve has the faults, the solenoid valve needs to be manually operated, so that the solenoid valve is separated from a liquid outlet of the pipeline to realize pressure relief. At present, in one manual pressure relief mode, a mode of quickly disassembling a nut is adopted for connecting an electromagnetic valve and a pipeline, when the electromagnetic valve breaks down, the nut is disassembled to integrally disassemble the electromagnetic valve from the pipeline to achieve pressure relief, and the operation is complex; in another manual pressure relief mode, an additional action device such as a pressure relief screw is arranged, when the electromagnetic valve breaks down, the action device is utilized to drive the movable iron core through a transmission mode, so that pressure relief is realized, the transmission mode is easy to block, and the volume is larger.
Disclosure of Invention
The invention provides an electromagnetic valve, an airborne spraying system and an agricultural plant protection machine.
Specifically, the invention is realized by the following technical scheme:
according to a first aspect of the present invention, there is provided a solenoid valve comprising:
the shell is used for being installed on a pipeline and is provided with an accommodating space;
the diaphragm is arranged on the shell and can seal the liquid outlet of the pipeline;
the movable iron core is accommodated in the accommodating space, and one end of the movable iron core is abutted to one side, away from the liquid outlet, of the diaphragm;
the static iron core is accommodated in the accommodating space, the static iron core is arranged on one side, away from the diaphragm, of the movable iron core, the static iron core is provided with a through hole, and the movable iron core can slide in the through hole;
the coil assembly is accommodated in the accommodating space and used for generating a magnetic field, and the coil assembly is sleeved on the movable iron core and the static iron core;
the elastic piece is positioned in the through hole, is abutted against the movable iron core and is used for providing an elastic acting force for the movable iron core; and
a pressure relief adjuster inserted into the through hole and positioned in the through hole;
when the pressure relief adjusting piece moves towards the opening of the through hole in the through hole, the pressure relief adjusting piece can drive the elastic piece to stretch so as to adjust the elastic acting force of the elastic piece;
when the coil is not electrified, the movable iron core supports the diaphragm under the action of the elastic action force, so that the diaphragm deforms to seal the liquid outlet;
when the electromagnetic valve is in a non-failure state and the coil assembly is electrified, the movable iron core can compress the elastic piece under the action of the suction force of the static iron core, so that the diaphragm is separated from the liquid outlet to open the liquid outlet;
when the electromagnetic valve is in a fault state, the pressure relief adjusting piece is operated, so that the pressure relief adjusting piece moves towards the opening of the through hole in the through hole, the elastic piece recovers deformation, the movable iron core is driven to reset, and the diaphragm is separated from the liquid outlet to open the liquid outlet.
According to a second aspect of the invention, an on-board spraying system of an agricultural plant protection machine is provided, and the on-board spraying system comprises a water tank for being mounted on a frame of the agricultural plant protection machine, a pipeline communicated with the water tank, and the electromagnetic valve provided by the first aspect of the invention, which is mounted on the pipeline and matched with a liquid outlet of the pipeline.
According to a third aspect of the present invention there is provided an agricultural plant protection machine comprising a frame and an on-board sprinkler system according to the second aspect of the present invention mounted on the frame.
According to the technical scheme provided by the embodiment of the invention, the pressure relief adjusting piece is arranged in the static iron core, and the pressure relief adjusting piece, the elastic piece, the movable iron core and the static iron core are matched, so that when the electromagnetic valve fails, such as the electromagnetic valve is electrically effective, the purpose of rapid manual pressure relief can be realized by manually operating the pressure relief adjusting piece by a user, and the electromagnetic valve pressure relief adjusting piece has the advantages of simple structure, low cost and high reliability; meanwhile, the elastic acting force applied to the movable iron core by the elastic piece can be realized by operating the pressure relief adjusting piece.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced 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 based on these drawings without inventive labor.
FIG. 1 is a schematic diagram of a liquid outlet of a sealed conduit of a solenoid valve according to an embodiment of the present invention;
FIG. 2 is an enlarged partial schematic view of FIG. 1;
FIG. 3 is a schematic diagram of a solenoid valve and a pressure relief separation structure of a liquid outlet of a pipeline according to an embodiment of the present invention;
FIG. 4 is an enlarged partial schematic view of FIG. 3;
fig. 5 is a schematic structural view of a pressure relief regulator according to an embodiment of the present invention.
Reference numerals:
100: a pipeline; 110: a liquid outlet; 120: a water inlet; 130: a first water outlet; 140: a second water outlet; 200: an electromagnetic valve; 210: a housing; 220: a diaphragm; 230: a movable iron core; 240: a stationary iron core; 241: a through hole; 250: a coil assembly; 251: a bobbin; 252: a coil; 253: a yoke cover; 260: an elastic member; 270: a pressure relief regulator; 271: a plug-in part; 272: an operation end; 2721: grooving; 280: and (5) sealing rings.
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 electromagnetic valve, the airborne spraying system and the agricultural plant protection machine are described in detail below with reference to the attached drawings. The features of the following examples and embodiments may be combined with each other without conflict.
Referring to fig. 1 to 5, an embodiment of the present invention provides a solenoid valve, and the solenoid valve 200 may include a housing 210, a diaphragm 220, a plunger 230, a stationary core 240, a coil assembly 250, an elastic member 260, and a pressure relief regulator 270. Wherein the housing 210 is used to be mounted on the pipeline 100, and the housing 210 is provided with a receiving space. The housing 210 may be directly detachably connected to the pipeline 100 by means of snap connection, plug connection, or the like, or the housing 210 may be indirectly detachably connected to the pipeline 100 by means of a quick-release member such as a threaded connector, and the connection between the housing 210 and the pipeline 100 may be designed as required.
The tube 100 may comprise the exit port 110 (or the exit port), the membrane 220 is mounted to the housing 210, and the membrane 220 is capable of sealing the exit port 110 of the tube 100. The movable iron core 230, the stationary iron core 240 and the coil assembly 250 are all accommodated in the accommodating space, the coil assembly 250 is used for generating a magnetic field, and the coil assembly 250 is sleeved on the movable iron core 230 and the stationary iron core 240. Further, one end of the movable iron core 230 abuts against one side of the diaphragm 220 far away from the liquid outlet 110, the stationary iron core 240 is disposed on one side of the movable iron core 230 far away from the diaphragm 220, the stationary iron core 240 is provided with a through hole 241, the movable iron core 230 is slidable in the through hole 241, that is, the movable iron core 230 is slidably connected with the through hole 241. The elastic member 260 is disposed in the through hole 241, and the elastic member 260 abuts against the plunger 230, and the elastic member 260 of this embodiment is used to provide an elastic force to the plunger 230. The pressure relief adjuster 270 is inserted into the through hole 241, and the pressure relief adjuster 270 is positioned in the through hole 241. In this embodiment, when the pressure relief adjusting element 270 moves towards the opening of the through hole 241 in the through hole 241, the pressure relief adjusting element 270 can drive the elastic element 260 to stretch so as to adjust the elastic acting force of the elastic element 260.
When the coil is not energized, the movable iron core 230 supports the diaphragm 220 under the action of the elastic force, so that the diaphragm 220 deforms to seal the liquid outlet 110. When the coil is not electrified, the electromagnetic valve 200 can seal the liquid outlet 110 of the pipeline 100, the larger the elastic acting force is, the larger the jacking force of the movable iron core 230 jacking the diaphragm 220 is, the larger the jacking force of the diaphragm 220 exerted on the liquid outlet 110 is, the better the effect of the diaphragm 220 for sealing the liquid outlet 110 is, namely, the positive correlation between the effect of the diaphragm 220 for sealing the liquid outlet 110 and the elastic acting force is, and when the elastic acting force is smaller than a preset threshold value, the diaphragm 220 is separated from the liquid outlet 110, so that the pressure relief effect is realized.
When the solenoid valve 200 is in a non-failure state and the coil assembly 250 is energized, the movable core 230 can compress the elastic member 260 under the attraction force of the stationary core 240, so that the diaphragm 220 is separated from the liquid outlet 110 to open the liquid outlet 110. When the solenoid valve 200 is in a non-failure state and the coil assembly 250 is energized, the coil assembly 250 generates a magnetic field, the movable iron core 230 is attracted by the stationary iron core 240, so that the movable iron core 230 compresses the elastic member 260, the movable iron core 230 drives the diaphragm 220 to move away from the liquid outlet 110, the diaphragm 220 is separated from the liquid outlet 110, the liquid outlet 110 is opened, and the pressure relief effect is realized.
When the solenoid valve 200 is in a failure state, the pressure relief adjusting element 270 is operated to move the pressure relief adjusting element 270 in the through hole 241 toward the opening of the through hole 241, so that the elastic element 260 recovers deformation to drive the movable iron core 230 to reset, and the diaphragm 220 is separated from the liquid outlet 110 to open the liquid outlet 110. The failure state of the solenoid valve 200 may include a situation that the coil assembly 250 cannot be energized due to an electrical failure of the solenoid valve 200 or the coil assembly 250 may be energized but the movable iron core 230 and the stationary iron core 240 cannot be attracted due to a structural failure of the solenoid valve 200, and at this time, the pressure relief adjusting element 270 may be manually operated to implement pressure relief. It should be appreciated that the pressure relief regulator 270 may also be manually operated to achieve pressure relief when the solenoid valve 200 is in a non-faulted state and the coil assembly 250 is not energized. The opening of the through hole 241 is an opening at one end of the through hole 241 remote from the plunger 230.
According to the electromagnetic valve 200 provided by the embodiment of the invention, the pressure relief adjusting piece 270 is arranged in the static iron core 240, and the pressure relief adjusting piece 270, the elastic piece 260, the movable iron core 230 and the static iron core 240 are matched, so that when the electromagnetic valve 200 fails, for example, when the electromagnetic valve 200 is electrically effective, the purpose of rapid manual pressure relief can be realized by manually operating the pressure relief adjusting piece 270 by a user, and the electromagnetic valve 200 is simple in structure, low in cost and high in reliability; meanwhile, the elastic force applied to the plunger 230 by the elastic member 260 is also achieved by operating the relief regulator 270.
The pipe 100 may be a two-way pipe, a three-way pipe, a four-way pipe, etc., when the pipe 100 is a two-way pipe, the pipe 100 includes a water inlet and a water outlet, and the liquid outlet 110 is a water outlet of the pipe 100. When the diaphragm 220 of the electromagnetic valve 200 seals the water outlet, the liquid flowing in from the water inlet cannot flow out from the water outlet; when the diaphragm 220 of the solenoid valve 200 is separated from the diversion port, the liquid flowing in from the water inlet will flow out from the water outlet. When the pipeline 100 is a three-way or above pipeline, the liquid outlet 110 is a diversion port, as shown in fig. 1, the pipeline 100 is a three-way pipe and includes a water inlet 120, a first water outlet 130, a second water outlet 140 and a diversion port, and the water inlet 120 can be respectively communicated with the first water outlet 130 and the second water outlet 140 through the diversion port. Specifically, when the diaphragm 220 of the solenoid valve 200 seals the diversion port, the water inlet 120 is separated from the first water outlet 130 and the second water outlet 140, and the liquid flowing in from the water inlet 120 cannot flow out from the first water outlet 130 and the second water outlet 140; when the diaphragm 220 of the solenoid valve 200 is separated from the diversion port, the water inlet 120 is respectively communicated with the first water outlet 130 and the second water outlet 140 through the diversion port, and the liquid flowing in from the water inlet 120 is diverted at the diversion port and respectively flows out from the first water outlet 130 and the second water outlet 140.
The surface of shell 210 is equipped with the waterproof layer, and this waterproof layer has functions such as waterproof, corrosion-resistant for solenoid valve 200 action piece can not soak in liquid like moving iron core 230, quiet iron core 240 and coil pack 250, consequently does not have corrosion-resistant requirement to moving iron core 230, quiet iron core 240 and coil pack 250, and solenoid valve 200 is applicable to various abominable operating modes, and life is high.
The structure of the through-hole 241 may be designed as desired, for example, the through-hole 241 includes a first hole portion and a second hole portion communicating with the first hole portion, and the size of the cross section of the first hole portion is larger than that of the second hole portion. In this embodiment, the movable iron core 230 is located in the first hole portion, the pressure relief regulator 270 is located in the second hole portion, and the cross-sectional dimension of the movable iron core 230 is greater than the cross-sectional dimension of the second hole portion and is limited in the first hole portion. That is, the plunger 230 is slidably connected to the second hole, and the opening of the through hole 241 is disposed at one end of the first hole away from the second hole. Optionally, the first bore portion is coaxially arranged with the second bore portion.
For example, in some embodiments, the pressure relief adjusting element 270 is rotated to move the pressure relief adjusting element 270 in the through hole 241 toward the opening of the through hole 241, so that the elastic element 260 is deformed again to drive the movable iron core 230 to reset, so that the diaphragm 220 is separated from the liquid outlet 110 to open the liquid outlet 110. In this embodiment, the pressure relief adjuster 270 is rotatably engaged with the through hole 241, and specifically, the pressure relief adjuster 270 is rotatably engaged with the first hole portion, and the pressure relief adjuster 270 is rotated, so that the pressure relief adjuster 270 moves toward the opening of the through hole 241 in the first hole portion. Illustratively, the pressure relief adjuster 270 is a threaded member, and an internal thread is disposed in the through hole 241 and rotatably engaged with the threaded member. Referring to fig. 5, the pressure relief adjusting member 270 includes an insertion portion 271, and the insertion portion 271 includes an external thread, and the external thread is rotatably engaged with the internal thread.
In other embodiments, the pressure relief regulator 270 is pulled to move the pressure relief regulator 270 in the through hole 241 toward the opening of the through hole 241, so that the elastic member 260 recovers its shape, and drives the plunger 230 to reset, so that the diaphragm 220 is separated from the liquid outlet 110 to open the liquid outlet 110. Alternatively, the pressure relief adjuster 270 may be snap-fitted to the through-hole 241, specifically, the pressure relief adjuster 270 may be snap-fitted to the first hole portion, and pulling the pressure relief adjuster 270 may move the pressure relief adjuster 270 in the first hole portion toward the opening of the through-hole 241.
It should be understood that the pressure relief adjuster 270 is not limited to be rotated, clamped, or other quick-release methods, but may be other quick-release methods.
Further, in some embodiments, the pressure relief adjuster 270 is provided with an operating end 272 to facilitate manual operation by a user. The operation end 272 is disposed at an end of the pressure-releasing adjusting element 270 close to the opening of the through-hole 241, and the operation end 272 is exposed out of the housing 210. The operation end 272 of this embodiment can cooperate with the butt of shell 210, in order to move iron core 230, quiet iron core 240 and coil pack 250 sealed in accommodating space, prevent that outside liquid from getting into accommodating space through the opening of through-hole 241, this kind of structural design, make move iron core 230, quiet iron core 240 and coil pack 250 can not soak in liquid, consequently do not have corrosion-resistant requirement to moving iron core 230, quiet iron core 240 and coil pack 250, solenoid valve 200 is applicable to various abominable operating modes, and service life is high. In this embodiment, the operation end 272 is operated such that the pressure relief regulator 270 moves in the through-hole 241 toward the opening of the through-hole 241. That is, the operation end 272 may be operated by rotating, pulling, or other operation means to achieve a corresponding operation of the pressure relief adjuster 270. Along with the embodiment in which the pressure relief regulator 270 includes the insertion part 271, optionally, the operation end 272 is integrally formed at one end of the insertion part 271.
In addition, in some embodiments, a sealing ring 280 is disposed between the operating end 272 and the housing 210, and the sealing ring 280 is sleeved on the pressure relief adjuster 270. When the coil assembly 250 is not energized, the operating end 272 abuts the seal ring 280 against the housing 210 to seal the movable iron core 230, the stationary iron core 240 and the coil assembly 250 in the accommodating space, further preventing external liquid from entering the accommodating space through the opening of the through hole 241. The sealing ring 280 may be a rubber ring, or a sealing ring made of other materials.
Illustratively, the operation end 272 is provided with a slot 2721 engaged with the external rotation mechanism, and the operation end 272 can drive the pressure relief adjusting element 270 to move in the through hole 241 towards the opening of the through hole 241 under the action of the rotation force of the external rotation mechanism, so as to facilitate the operation of the user, and the operation mode is more labor-saving.
Referring to fig. 1 and 3, the diaphragm 220 is embedded in the housing 210, and the diaphragm 220 is exposed out of the housing 210. Illustratively, the housing 210 is provided with a receiving groove communicating with the receiving space, and the diaphragm 220 is received in the receiving groove. Further optionally, the diaphragm 220 is attached to and connected with the side wall of the accommodating groove at two ends of one side of the movable iron core 230, so as to seal the movable iron core 230, the stationary iron core 240 and the coil assembly 250 in the accommodating space, and prevent external liquid from entering the accommodating space through the accommodating groove, and due to the structural design, the movable iron core 230, the stationary iron core 240 and the coil assembly 250 are not soaked in the liquid, so that the movable iron core 230, the stationary iron core 240 and the coil assembly 250 have no corrosion resistance requirement, and the solenoid valve 200 is suitable for various severe working conditions and has a long service life. It should be understood that the manner in which the diaphragm 220 is engaged with the housing 210 is not limited thereto.
Referring to fig. 1 and 3, one end of the elastic member 260 is connected to one end of the plunger 230 facing the stationary core 240, and the other end of the elastic member 260 is engaged with the pressure release adjusting member 270 in the through hole 241. Optionally, the resilient member 260 abuts the pressure relief adjuster 270; of course, the resilient member 260 and the pressure relief adjustment member 270 may be engaged in other ways.
The type of the elastic member 260 may be selected as desired, and optionally, the elastic member 260 is a spring, and an end of the spring away from the plunger 230 abuts the pressure relief adjuster 270. Optionally, the elastic member 260 is an elastic structure made of a flexible material, such as rubber, plastic, or the like.
In order to prevent the elastic member 260 from being separated from the movable iron core 230, optionally, a fixing groove is provided on a side of the movable iron core 230 facing the stationary iron core 240, and one end of the elastic member 260 abuts against the fixing groove.
Referring to fig. 1 and 3 again, the coil assembly 250 may include a coil frame 251 sleeved on the movable core 230 and the stationary core 240, a coil 252 wound on the coil frame 251, and a yoke cover 253 covering the coil frame 251, wherein one end of the yoke cover 253 is engaged with a sidewall of the movable core 230, and the other end is engaged with a sidewall of the stationary core 240, and the coil frame 251 and the coil are waterproofed by the yoke cover 253.
Optionally, the yoke cover 253 is a unitary structure. Optionally, the yoke cover 253 includes an upper yoke cover and a lower yoke cover, the upper yoke cover and the lower yoke cover are matched, one end of the upper yoke cover, which is far away from the lower yoke cover, is sleeved on the movable iron core 230, and one end of the lower yoke cover, which is far away from the upper yoke cover, is sleeved on the stationary iron core 240. Optionally, the upper yoke cover and the lower yoke cover are butted; of course, the upper yoke cover and the lower yoke cover can be matched in other connection modes.
The upper yoke cover and the lower yoke cover may be adapted in shape, and optionally, the upper yoke cover and the lower yoke cover may be U-shaped covers adapted to each other.
In addition, the housing 210 may be integrally formed outside the yoke cover 253 by injection molding, thereby improving a waterproof effect of the solenoid valve 200.
Further, the solenoid valve 200 may further include a power connection line, one end of the power connection line is electrically connected to the coil assembly 250, the power connection line passes through the magnetic yoke cover 253 and the housing 210, and the other end of the power connection line is exposed outside the housing 210 to be connected to an external power source, so as to supply power to the solenoid valve 200. The joint of the power connecting line and the yoke cover 253 is formed by injection molding, so that the waterproof performance of the power connecting line at the joint of the power connecting line and the yoke cover 253 can be realized.
It should be noted that the solenoid valve 200 of the present embodiment may be applied to various devices including pipes, such as an on-board sprinkler system.
The embodiment of the invention also provides an airborne spraying system of the agricultural plant protection machine, and the airborne spraying system comprises a water tank, a pipeline and the electromagnetic valve 200 of the embodiment. Wherein, the water tank is used for installing in the frame of agricultural plant protection machine, and the pipeline communicates with the water tank, and solenoid valve 200's shell 210 is installed on the pipeline to, solenoid valve 200 cooperates with the liquid outlet 110 of pipeline.
In addition, the embodiment of the invention also provides an agricultural plant protection machine, which comprises a rack and the airborne spraying system of the embodiment, wherein the airborne spraying system is arranged on the rack.
Wherein, the agricultural plant protection machine of this embodiment can be plant protection unmanned aerial vehicle, also can be other agricultural sprinkler.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The electromagnetic valve, the airborne spraying system and the agricultural plant protection machine provided by the embodiment of the invention are described in detail, specific examples are applied in the description to explain the principle and the implementation mode of the invention, and the description of the embodiments 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, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (51)
1. A solenoid valve, characterized in that it comprises:
the shell is used for being installed on a pipeline and is provided with an accommodating space;
the diaphragm is arranged on the shell and can seal the liquid outlet of the pipeline;
the movable iron core is accommodated in the accommodating space, and one end of the movable iron core is abutted to one side, away from the liquid outlet, of the diaphragm;
the static iron core is accommodated in the accommodating space, the static iron core is arranged on one side, away from the diaphragm, of the movable iron core, the static iron core is provided with a through hole, and the movable iron core can slide in the through hole;
the coil assembly is accommodated in the accommodating space and used for generating a magnetic field, and the coil assembly is sleeved on the movable iron core and the static iron core;
the elastic piece is positioned in the through hole, is abutted against the movable iron core and is used for providing an elastic acting force for the movable iron core; and
a pressure relief adjuster inserted into the through hole and positioned in the through hole;
when the pressure relief adjusting piece moves towards the opening of the through hole in the through hole, the pressure relief adjusting piece can drive the elastic piece to stretch so as to adjust the elastic acting force of the elastic piece;
when the coil is not electrified, the movable iron core supports the diaphragm under the action of the elastic action force, so that the diaphragm deforms to seal the liquid outlet;
when the electromagnetic valve is in a non-failure state and the coil assembly is electrified, the movable iron core can compress the elastic piece under the action of the suction force of the static iron core, so that the diaphragm is separated from the liquid outlet to open the liquid outlet;
when the electromagnetic valve is in a fault state, the pressure relief adjusting piece is operated, so that the pressure relief adjusting piece moves towards the opening of the through hole in the through hole, the elastic piece recovers deformation, the movable iron core is driven to reset, and the diaphragm is separated from the liquid outlet to open the liquid outlet.
2. The electromagnetic valve according to claim 1, characterized in that the through hole includes a first hole portion and a second hole portion communicating with the first hole portion, a size of a cross section of the first hole portion is larger than a size of a cross section of the second hole portion, and the movable iron core is located in the first hole portion;
the pressure relief adjusting piece is positioned in the second hole part, and the cross section size of the movable iron core is larger than that of the second hole part and is limited in the first hole part.
3. The solenoid valve of claim 1 or 2, wherein said pressure relief adjuster is rotationally engaged with said through bore.
4. The electromagnetic valve according to claim 3, wherein the pressure relief adjusting member is a threaded member, and an internal thread rotatably engaged with the threaded member is provided in the through hole.
5. The solenoid valve of claim 1 or 2, wherein said pressure relief adjuster is snap fit into said through bore.
6. The electromagnetic valve according to claim 1 or 2, wherein the pressure relief adjusting member is provided with an operating end, the operating end is arranged at one end of the pressure relief adjusting member close to the opening of the through hole and exposed outside the housing, and the operating end can be in butt fit with the housing to seal the movable iron core, the stationary iron core and the coil assembly in the accommodating space;
and operating the operating end to enable the pressure relief adjusting piece to move towards the opening of the through hole in the through hole.
7. The electromagnetic valve according to claim 6, wherein a sealing ring is arranged between the operating end and the housing, and the pressure relief regulator is sleeved with the sealing ring;
when the coil is not electrified, the operating end abuts the sealing ring on the shell so as to seal the movable iron core, the static iron core and the coil assembly in the accommodating space.
8. The solenoid valve of claim 7 wherein said sealing ring is a rubber ring.
9. The electromagnetic valve according to claim 6, wherein the operation end is provided with a slot matched with an external rotating mechanism, and the operation end can drive the pressure relief adjusting piece to move in the through hole towards the opening of the through hole under the action of the rotating force of the external rotating mechanism.
10. The solenoid valve of claim 1 wherein said diaphragm is embedded in said housing and exposed from said housing.
11. The electromagnetic valve according to claim 10, wherein the housing is provided with a housing groove communicating with the housing space, the diaphragm being housed in the housing groove;
and the diaphragm faces to the two ends of one side of the movable iron core and is attached and connected with the side wall of the containing groove, so that the movable iron core, the static iron core and the coil assembly are sealed in the containing space.
12. The electromagnetic valve according to claim 1, wherein one end of the elastic member is connected to one end of the movable iron core facing the stationary iron core, and the other end of the elastic member is engaged with the pressure relief adjusting member in the through hole.
13. The electromagnetic valve according to claim 12, wherein the elastic member is a spring, and one end of the spring, which is far away from the plunger, abuts against the pressure relief adjuster.
14. The electromagnetic valve according to claim 12, wherein a side of the movable iron core facing the stationary iron core is provided with a fixing groove, and one end of the elastic member abuts against the fixing groove.
15. The electromagnetic valve according to claim 1, wherein the coil assembly comprises a coil frame sleeved on the movable iron core and the static iron core, a coil wound on the coil frame, and a yoke cover covering the coil frame;
one end of the magnetic yoke cover is matched with the side wall of the movable iron core, and the other end of the magnetic yoke cover is matched with the side wall of the static iron core.
16. The solenoid valve of claim 15, wherein the yoke cover comprises an upper yoke cover and a lower yoke cover, the upper yoke cover and the lower yoke cover cooperate, an end of the upper yoke cover remote from the lower yoke cover is sleeved on the plunger, and an end of the lower yoke cover remote from the upper yoke cover is sleeved on the plunger.
17. The electromagnetic valve according to claim 1, wherein the liquid outlet is a flow dividing port.
18. The utility model provides an airborne sprinkler system of agricultural plant protection machine which characterized in that, airborne sprinkler system including be used for installing the water tank in the frame of agricultural plant protection machine, with the pipeline of water tank intercommunication and install on the pipeline, with the liquid outlet complex solenoid valve of pipeline, wherein, the solenoid valve includes:
the shell is used for being installed on a pipeline and is provided with an accommodating space;
the diaphragm is arranged on the shell and can seal the liquid outlet of the pipeline;
the movable iron core is accommodated in the accommodating space, and one end of the movable iron core is abutted to one side, away from the liquid outlet, of the diaphragm;
the static iron core is accommodated in the accommodating space, the static iron core is arranged on one side, away from the diaphragm, of the movable iron core, the static iron core is provided with a through hole, and the movable iron core can slide in the through hole;
the coil assembly is accommodated in the accommodating space and used for generating a magnetic field, and the coil assembly is sleeved on the movable iron core and the static iron core;
the elastic piece is positioned in the through hole, is abutted against the movable iron core and is used for providing an elastic acting force for the movable iron core; and
a pressure relief adjuster inserted into the through hole and positioned in the through hole;
when the pressure relief adjusting piece moves towards the opening of the through hole in the through hole, the pressure relief adjusting piece can drive the elastic piece to stretch so as to adjust the elastic acting force of the elastic piece;
when the coil is not electrified, the movable iron core supports the diaphragm under the action of the elastic action force, so that the diaphragm deforms to seal the liquid outlet;
when the electromagnetic valve is in a non-failure state and the coil assembly is electrified, the movable iron core can compress the elastic piece under the action of the suction force of the static iron core, so that the diaphragm is separated from the liquid outlet to open the liquid outlet;
when the electromagnetic valve is in a fault state, the pressure relief adjusting piece is operated, so that the pressure relief adjusting piece moves towards the opening of the through hole in the through hole, the elastic piece recovers deformation, the movable iron core is driven to reset, and the diaphragm is separated from the liquid outlet to open the liquid outlet.
19. The on-board sprinkler system of claim 18, wherein the through-hole includes a first hole portion and a second hole portion in communication with the first hole portion, the first hole portion having a cross-sectional dimension greater than a cross-sectional dimension of the second hole portion, the plunger being positioned in the first hole portion;
the pressure relief adjusting piece is positioned in the second hole part, and the cross section size of the movable iron core is larger than that of the second hole part and is limited in the first hole part.
20. The on-board sprinkler system of claim 18 or 19, wherein the pressure relief adjuster is rotationally engaged with the through-hole.
21. The on-board sprinkler system of claim 20, wherein the pressure relief adjustment member is a threaded member, and an internal thread is disposed within the through-hole and is in rotatable engagement with the threaded member.
22. The on-board sprinkler system of claim 18 or 19, wherein the pressure relief adjuster snap-fits into the through-hole.
23. The airborne sprinkler system according to claim 18 or 19, wherein said pressure relief adjuster is provided with an operating end, said operating end is provided at an end of said pressure relief adjuster near the opening of said through hole and exposed outside of the housing, said operating end is capable of abutting and cooperating with said housing to seal said movable core, said stationary core and said coil assembly in said receiving space;
and operating the operating end to enable the pressure relief adjusting piece to move towards the opening of the through hole in the through hole.
24. The airborne sprinkler system of claim 23, wherein a seal ring is disposed between the operating end and the housing, the seal ring being disposed around the pressure relief adjuster;
when the coil is not electrified, the operating end abuts the sealing ring on the shell so as to seal the movable iron core, the static iron core and the coil assembly in the accommodating space.
25. The on-board sprinkler system of claim 24, wherein the sealing ring is a rubber ring.
26. The airborne sprinkler system of claim 23, wherein the operating end includes a slot that engages an external rotating mechanism, the operating end being capable of moving the pressure relief adjustment member within the through-hole toward the opening of the through-hole under the rotational force of the external rotating mechanism.
27. The on-board sprinkler system of claim 18, wherein the diaphragm is embedded in the housing and exposed outside of the housing.
28. The on-board sprinkler system of claim 27, wherein the housing defines a receiving cavity in communication with the receiving space, the diaphragm being received in the receiving cavity;
and the diaphragm faces to the two ends of one side of the movable iron core and is attached and connected with the side wall of the containing groove, so that the movable iron core, the static iron core and the coil assembly are sealed in the containing space.
29. The airborne sprinkler system of claim 18, wherein one end of the resilient member is connected to an end of the movable core facing the stationary core, and the other end of the resilient member is engaged with the pressure relief adjuster within the through-hole.
30. The on-board sprinkler system of claim 29, wherein the resilient member is a spring, and an end of the spring distal from the plunger abuts the pressure relief adjuster.
31. The on-board sprinkler system of claim 29, wherein the plunger includes a fixed slot on a side thereof facing the stationary core, and an end of the resilient member abuts the fixed slot.
32. The airborne sprinkler system of claim 18, wherein the coil assembly includes a coil bobbin fitted around the movable core and the stationary core, a coil wound around the coil bobbin, and a yoke cover covering the coil bobbin;
one end of the magnetic yoke cover is matched with the side wall of the movable iron core, and the other end of the magnetic yoke cover is matched with the side wall of the static iron core.
33. The on-board sprinkler system of claim 32, wherein the yoke cover includes an upper yoke cover and a lower yoke cover, the upper yoke cover and the lower yoke cover cooperating, an end of the upper yoke cover distal from the lower yoke cover being positioned over the plunger, and an end of the lower yoke cover distal from the upper yoke cover being positioned over the plunger.
34. The on-board sprinkler system of claim 18, wherein the liquid outlet is a diverter port.
35. The utility model provides an agricultural plant protection machine, its characterized in that, agricultural plant protection machine includes frame and machine carries sprinkler system, machine carries sprinkler system installs in the frame, wherein, machine carries sprinkler system including be used for installing the water tank in agricultural plant protection machine's frame, with the pipeline of water tank intercommunication and install on the pipeline, and with the liquid outlet complex solenoid valve of pipeline, wherein, the solenoid valve includes:
the shell is used for being installed on a pipeline and is provided with an accommodating space;
the diaphragm is arranged on the shell and can seal the liquid outlet of the pipeline;
the movable iron core is accommodated in the accommodating space, and one end of the movable iron core is abutted to one side, away from the liquid outlet, of the diaphragm;
the static iron core is accommodated in the accommodating space, the static iron core is arranged on one side, away from the diaphragm, of the movable iron core, the static iron core is provided with a through hole, and the movable iron core can slide in the through hole;
the coil assembly is accommodated in the accommodating space and used for generating a magnetic field, and the coil assembly is sleeved on the movable iron core and the static iron core;
the elastic piece is positioned in the through hole, is abutted against the movable iron core and is used for providing an elastic acting force for the movable iron core; and
a pressure relief adjuster inserted into the through hole and positioned in the through hole;
when the pressure relief adjusting piece moves towards the opening of the through hole in the through hole, the pressure relief adjusting piece can drive the elastic piece to stretch so as to adjust the elastic acting force of the elastic piece;
when the coil is not electrified, the movable iron core supports the diaphragm under the action of the elastic action force, so that the diaphragm deforms to seal the liquid outlet;
when the electromagnetic valve is in a non-failure state and the coil assembly is electrified, the movable iron core can compress the elastic piece under the action of the suction force of the static iron core, so that the diaphragm is separated from the liquid outlet to open the liquid outlet;
when the electromagnetic valve is in a fault state, the pressure relief adjusting piece is operated, so that the pressure relief adjusting piece moves towards the opening of the through hole in the through hole, the elastic piece recovers deformation, the movable iron core is driven to reset, and the diaphragm is separated from the liquid outlet to open the liquid outlet.
36. The agricultural plant protection machine of claim 35, wherein the through-hole includes a first hole portion and a second hole portion communicating with the first hole portion, a cross-sectional dimension of the first hole portion being larger than a cross-sectional dimension of the second hole portion, the plunger being located in the first hole portion;
the pressure relief adjusting piece is positioned in the second hole part, and the cross section size of the movable iron core is larger than that of the second hole part and is limited in the first hole part.
37. An agricultural plant protection machine according to claim 35 or 36, wherein the pressure relief regulator is rotationally engaged with the through hole.
38. The agricultural plant protection machine of claim 37, wherein said pressure relief adjuster is a threaded member, and an internal thread is provided in said through hole for rotatably engaging said threaded member.
39. An agricultural plant protection machine according to claim 35 or 36, wherein the pressure relief regulator is snap fit with the through hole.
40. The agricultural plant protection machine according to claim 35 or 36, wherein the pressure relief adjuster is provided with an operating end, the operating end is arranged at one end of the pressure relief adjuster close to the opening of the through hole and exposed out of the housing, and the operating end can be in abutting fit with the housing to seal the movable iron core, the static iron core and the coil assembly in the accommodating space;
and operating the operating end to enable the pressure relief adjusting piece to move towards the opening of the through hole in the through hole.
41. The agricultural plant protection machine of claim 40, wherein a sealing ring is disposed between said operating end and said housing, said sealing ring being sleeved on said pressure relief adjuster;
when the coil is not electrified, the operating end abuts the sealing ring on the shell so as to seal the movable iron core, the static iron core and the coil assembly in the accommodating space.
42. The agricultural plant protection machine of claim 41, wherein the sealing ring is a rubber ring.
43. The agricultural plant protection machine of claim 40, wherein the operation end is provided with a slot matched with an external rotating mechanism, and the operation end can drive the pressure relief adjusting piece to move in the through hole towards the opening of the through hole under the action of the rotating force of the external rotating mechanism.
44. The agricultural plant protection machine of claim 35, wherein the membrane is embedded in the housing and exposed outside the housing.
45. The agricultural plant protection machine of claim 44, wherein the housing is provided with a housing groove communicating with the housing space, the diaphragm being housed in the housing groove;
and the diaphragm faces to the two ends of one side of the movable iron core and is attached and connected with the side wall of the containing groove, so that the movable iron core, the static iron core and the coil assembly are sealed in the containing space.
46. The agricultural plant protection machine of claim 35, wherein one end of the elastic member is connected to an end of the movable iron core facing the stationary iron core, and the other end of the elastic member is engaged with the pressure relief adjuster in the through hole.
47. The agricultural plant protection machine of claim 46, wherein the elastic member is a spring, and one end of the spring, which is far away from the movable iron core, abuts against the pressure relief adjuster.
48. The agricultural plant protection machine of claim 46, wherein a side of the movable iron core facing the stationary iron core is provided with a fixing groove, and one end of the elastic member abuts against the fixing groove.
49. The agricultural plant protection machine of claim 35, wherein the coil assembly comprises a coil frame sleeved on the movable iron core and the stationary iron core, a coil wound on the coil frame, and a yoke cover covering the coil frame;
one end of the magnetic yoke cover is matched with the side wall of the movable iron core, and the other end of the magnetic yoke cover is matched with the side wall of the static iron core.
50. The agricultural plant protection machine of claim 49, wherein the yoke cover comprises an upper yoke cover and a lower yoke cover, the upper yoke cover and the lower yoke cover are engaged, an end of the upper yoke cover remote from the lower yoke cover is sleeved on the movable iron core, and an end of the lower yoke cover remote from the upper yoke cover is sleeved on the stationary iron core.
51. The agricultural plant protection machine of claim 35, wherein the liquid outlet is a flow split.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/115394 WO2021087677A1 (en) | 2019-11-04 | 2019-11-04 | Solenoid valve, vehicle-mounted spraying system, and agricultural plant protection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112166274A true CN112166274A (en) | 2021-01-01 |
Family
ID=73859830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980032797.4A Pending CN112166274A (en) | 2019-11-04 | 2019-11-04 | Electromagnetic valve, airborne spraying system and agricultural plant protection machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112166274A (en) |
| WO (1) | WO2021087677A1 (en) |
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| CN112166273A (en) * | 2019-11-05 | 2021-01-01 | 深圳市大疆创新科技有限公司 | Solenoid valve subassembly and movable platform |
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Also Published As
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| WO2021087677A1 (en) | 2021-05-14 |
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