WO2021087772A1

WO2021087772A1 - Solenoid valve assembly and movable platform

Info

Publication number: WO2021087772A1
Application number: PCT/CN2019/115799
Authority: WO
Inventors: 王博; 周乐; 黄彦鑫; 朱聪聪; 李博
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2021-05-14
Also published as: CN112166273A

Abstract

A solenoid valve assembly, comprising: a solenoid valve (41), a communicating pipe (42), and a sealing member (43) located between the solenoid valve and the communicating pipe. The communicating pipe at least comprises a first channel (4210) and a second channel (4220) that communicate. The sealing member is attached and sealed to the solenoid valve. The solenoid valve comprises a mover (4115) and an elastic member (4115) that abuts against the mover. Once the solenoid valve is powered off, the elastic force of the elastic member drives the mover to move, so that the sealing member is attached and sealed to the communicating pipe so as to disconnect the first channel from the second channel. The sealing member of the present solenoid valve assembly is attached and sealed to the solenoid valve, which effectively prevents fluid in the communicating pipe from entering the inside of the solenoid valve, effectively protects the solenoid valve from corrosion, and prolongs the service life of the solenoid valve.

Description

Solenoid valve assembly and movable platform

Technical field

The invention relates to the technical field of movable platforms, in particular to a solenoid valve assembly and a movable platform.

Background technique

In applications such as industry and agriculture, it is often necessary to automatically control the fluid (gas or fluid) in the pipeline. The relevant movable platform uses solenoid valves to open or close the pipeline. When the pipeline is opened, the fluid in the pipeline will enter the solenoid valve. Because the fluid is corrosive, the fluid flows into the solenoid valve, which easily corrodes the parts of the solenoid valve and affects the service life of the solenoid valve.

Summary of the invention

The invention provides a solenoid valve assembly and a movable platform, which can prevent fluid from corroding the solenoid valve.

The present invention provides a solenoid valve assembly, which includes: a solenoid valve, a communicating pipe, and a sealing element between the solenoid valve and the communicating pipe, and the communicating pipe includes at least a first passage and a second passage that communicate with each other, The sealing element is attached to the solenoid valve for sealing. The solenoid valve includes a mover and an elastic element that abuts against the mover. After the electromagnetic valve is de-energized, the elastic force of the elastic element drives the The mover moves to make the sealing member and the communication pipe fit and seal, so as to disconnect the first channel and the second channel.

Another aspect of the present invention provides a movable platform for spraying fluid. The movable platform includes a spraying system, the spraying system includes a water pump, a spray head, and the above-mentioned solenoid valve assembly; wherein the fluid flows from the water pump Through the solenoid valve assembly and ejected from the spray head.

The sealing element of the solenoid valve assembly of the present invention fits and seals the solenoid valve, effectively preventing the fluid in the connecting pipe from entering the solenoid valve, effectively protecting the solenoid valve from corrosion, and prolonging the service life of the solenoid valve.

Description of the drawings

In order to more clearly explain the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative labor.

Fig. 1 is a perspective view of a movable platform according to an embodiment of the present invention;

Figure 2 is a perspective view of a solenoid valve assembly according to an embodiment of the present invention;

Figure 3 is an exploded view of the solenoid valve assembly shown in Figure 2;

4 is a schematic cross-sectional view of the communicating pipe of the solenoid valve assembly shown in FIG. 2, wherein the abutting portion is not shown;

Fig. 5 is a perspective view of the yoke assembly of the solenoid valve assembly of Fig. 2;

6 is a schematic cross-sectional view of the yoke assembly shown in FIG. 5, wherein the mover is not shown;

Figure 7 is an exploded view of the upper yoke and mover sleeve of the yoke assembly shown in Figure 5;

Fig. 8 is an exploded view of the lower yoke and stator of the yoke assembly shown in Fig. 5;

9 is a schematic cross-sectional view of the solenoid valve assembly shown in FIG. 2, wherein the sealing member is in an open state;

10 is an enlarged view of the circled part of the cross-sectional schematic diagram shown in FIG. 9;

11 is a schematic cross-sectional view of the solenoid valve assembly shown in FIG. 2, wherein the sealing member is in a sealed state;

FIG. 12 is an enlarged view of the circled part of the cross-sectional schematic diagram shown in FIG. 11;

13 is a perspective view of another embodiment of the solenoid valve of the solenoid valve assembly of the present invention;

14 is a perspective view of another embodiment of the yoke assembly of the solenoid valve assembly of the present invention;

15 is a perspective view of another embodiment of the yoke assembly of the solenoid valve assembly of the present invention;

16 is a perspective view of another embodiment of the yoke assembly of the solenoid valve assembly of the present invention;

Figure 17 is a bottom view of another embodiment of the communicating pipe of the solenoid valve assembly of the present invention;

18 is a perspective view of another embodiment of the communicating pipe of the solenoid valve assembly of the present invention;

19 is a schematic cross-sectional view of another embodiment of the communication pipe sealing assembly of the present invention;

20 is a schematic cross-sectional view of another embodiment of the communication pipe sealing assembly of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present invention. On the contrary, they are merely examples of devices consistent with some aspects of the invention as detailed in the appended claims.

The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms of "a", "said" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and/or" as used herein refers to and includes any or all possible combinations of one or more associated listed items. Unless otherwise indicated, similar words such as "front", "rear", "lower" and/or "upper" are only for convenience of description, and are not limited to one position or one spatial orientation. Similar words such as "connected" or "connected" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect.

The sealing element of the solenoid valve assembly of the present invention is attached and sealed to the solenoid valve, effectively preventing the fluid in the connecting pipe from entering the solenoid valve, effectively protecting the solenoid valve from corrosion, and prolonging the service life of the solenoid valve; at the same time, the solenoid valve The components do not need to be made of corrosion-resistant materials, which saves costs; in addition, the seal can effectively prevent the fluid in the communication pipe from entering the solenoid valve, and there is no need to set a waterproof magnetic isolation sleeve, which will not weaken the solenoid. The magnetism of the valve enables the solenoid valve to have better magnetic permeability, and meets the requirements of miniaturization, light weight and low power consumption under the same electromagnetic force of the solenoid valve. The solenoid valve assembly and the movable platform of the present invention will be described in detail below with reference to the accompanying drawings. If there is no conflict, the following embodiments and features in the embodiments can be combined with each other.

Another aspect of the present invention provides a movable platform for spraying fluid. The movable platform includes a spraying system. The spraying system includes a water pump, a spray head, and the solenoid valve assembly described above; wherein the fluid flows from the water pump Through the solenoid valve assembly and ejected from the spray head.

It should be noted that the movable platform includes an aircraft, a robot, or an autonomous vehicle, etc. The movable platform is equipped with a detection device, and the detection device includes a radar, a ranging sensor, and the like.

As shown in Fig. 1, the mobile platform (for example, drone) of the present invention can be applied in application fields such as industry and agriculture to realize automatic control of fluid (gas or liquid) in pipelines. For example, pesticides can be sprayed. The movable platform includes a fuselage 1, a wing 2 connected to the fuselage 1, and a spray system. The spraying system includes a tank 3, a water pump (not shown) connected to the tank 3, a diverter (not shown), a flow meter (not shown) and a solenoid valve assembly 4, and a solenoid valve assembly 4 connected to the solenoid The nozzle 5 of the valve assembly 4. The movable platform includes an aircraft and the like. The fluid in the tank 3 flows from the water pump through the solenoid valve assembly 4 and is ejected from the spray head 5. The spray head atomizes the fluid and sprays it out to facilitate uniform spraying.

Referring to FIGS. 2 and 3, the solenoid valve assembly 4 includes a solenoid valve 41, a communication pipe sealing assembly fixed to the solenoid valve 41, and a connector 46 connected to the connecting wire 45. The communicating pipe sealing assembly includes a communicating pipe 42 and a sealing member 43. The sealing member 43 is located between the solenoid valve 41 and the communication pipe 42. According to an embodiment of the present invention, the sealing member 43 is made of an elastic material. According to another embodiment of the present invention, the sealing member 43 is a diaphragm. The connector 46 is connected to a power source (not shown) to supply power to the solenoid valve 41. The communicating pipe 42 may be a two-way pipe or a multi-way pipe. In the illustrated embodiment, the communicating pipe 42 is a three-way pipe, and the communicating pipe 42 may also be a four-way pipe, a five-way pipe, or a six-way pipe. The present invention does not affect the passage of the communicating pipe 42. The number is limited and can be set according to actual needs. According to an embodiment of the present invention, the spray head 5 is connected to the communication pipe 42, and the fluid sequentially passes through the diverter, the flow meter, the water pump, and the communication pipe of the solenoid valve assembly 4 After 42, it is ejected by the spray head 5. Each of the channels can be connected with one spray head 5 to facilitate spraying fluid.

Referring to FIG. 3 and FIG. 4, the communication pipe 42 includes a connecting portion 420 and a first extension portion 421, a second extension portion 422 and a third extension portion 423 extending from the connecting portion 420. The communicating pipe 42 is provided with a first passage 4210 passing through the first extension portion 421, a second passage 4220 passing through the second extension portion 422, a third passage 4230 passing through the third extension portion 423, and An inlet 4211 at one end of the first channel 4210, a first outlet 4221 at one end of the second channel 4220, and a second outlet 4231 at one end of the third channel 4230. The connecting portion 420 includes an annular first protruding portion 4201, a partition 4202 whose two ends are respectively connected to the first protruding portion 4201, and an annular second protruding portion 4203. The second protrusion 4203 surrounds the first protrusion 4201. The connecting portion 420 includes a flat abutting portion 4204. Four corners of the abutting portion 4204 are provided with first assembly holes 4205 respectively. The present invention does not limit the position and number of the first assembly holes 4205, and can be set according to actual needs.

The sealing member 43 includes a base 430, a side wall 431 extending from the base 430, and a first limiting portion 4310 extending from the side wall 431. As shown in FIGS. 9 to 10, the base 430 and the side wall 431 enclose a space 4301. When the seal 43 is in an open state, the space 4301 is in communication with the first channel 4210, the second channel 4220, and the third channel 4230, and fluid can enter the first channel through the inlet 4211. The channel 4210 then enters the second channel 4220 and the third channel 4230, and finally flows out through the first outlet 4221 and the second outlet 4231. The side wall 431 and the second protruding portion 4203 fit and seal to prevent fluid from flowing out through the gap between the connecting pipe 42 and the side wall 431.

As shown in FIGS. 11 to 12, when the sealing member 43 is in a sealed state, the base 430 and the communicating tube 42 are attached and sealed to block the first channel 4210 and the second channel 4220, so The first channel 4210, the second channel 4220, and the third channel 4230 are disconnected in pairs. According to an embodiment of the present invention, the base 430 of the sealing member 43 is only sealed with the first channel 4210 and the second channel 4220. Specifically, in the illustrated embodiment, the base 430 is in close contact with the first protruding portion 4201 and the partition 4202, and fluid cannot enter the second channel 4220 through the first channel 4210 or Entering the third channel 4230 completes the function of closing the connecting pipe 42. Since the base 43 of the sealing member 43 is sealed with the second passage 4220, the second passage 4220 and the third passage 4230 are also disconnected. When the movable platform is tilted, the fluid in the second channel 4220 or the third channel 4230 will not flow out through the first outlet 4221 or the second outlet 4231, preventing leakage when spraying is not required. The phenomenon of dripping.

In the illustrated embodiment, the communication pipe 42 is a three-way pipe. When the communication pipe 42 includes more channels provided with outlets, for example, a fourth channel, a fifth channel, etc. are also provided. The sealing member 43 needs to ensure that every two channels are disconnected to prevent dripping from the outlet.

Referring to FIG. 3 and FIG. 5 to FIG. 9, the solenoid valve 41 includes a yoke assembly 411 and a housing 410 covering the yoke assembly 411. In one embodiment of the present invention, the housing 410 is a encapsulated body. The yoke assembly 411 includes a coil bobbin 4110, a coil 4111 wound to the coil bobbin 4110, a yoke part 4112 surrounding the coil bobbin 4110, a mover sleeve 4113 assembled to the yoke part 4112, and The stator 4114, the mover 4115 assembled to the mover sleeve 4113, and the elastic member 4116 (for example, a return spring) that abuts the mover 4115. The coil 4111 is connected to the connecting wire 45. After the coil 4111 is energized, a magnetic force is generated to drive the mover 4115 to move, so that the sealing member 43 is in an open state, and the base 430 of the sealing member 43 is separated from the communicating tube 42. According to an embodiment of the present invention, the sealing member 43 is made of an elastic material. According to another embodiment of the present invention, the sealing member 43 is a diaphragm. In one embodiment, the coil 4111 generates magnetic force after being energized to drive the mover 4115 to move. Due to the movement of the mover 4115, the elastic sealing member 43 returns to its own shape, thereby opening the channel sealed by the sealing member 43.

After the coil 4111 is de-energized, the mover 4115 moves under the action of the elastic force of the elastic member 4116 (ie, the return spring), so that the mover 4115 abuts the base 430 of the sealing member 43, The sealing member 43 is in a sealed state. At this time, the base 430 and the communicating tube 42 are attached and sealed. In other words, the sealing member 43 undergoes elastic deformation, so that the sealing member 43 is in a sealed state. The coil 4111 may be an enameled wire.

When the sealing member 43 is in the open state, the mover 4115 compresses the elastic member 4116. When the coil 4111 is energized, the elastic force of the elastic member 4116 that pushes the mover 4115 upward is less than the electromagnetic attraction force between the stator 4114 and the mover 4115. Therefore, the mover 4115 moves in a direction away from the sealing member 42 so that the sealing member 43 is in an open state.

The yoke part 4112 includes an upper yoke 41120 and a lower yoke 41121 that are fixed together. The upper yoke 41120 and the lower yoke 41121 are formed by bending sheet metal, and are enclosed in a ring shape to be sleeved to the The coil bobbin 4110. The upper yoke 41120 includes a top wall 41122 and a first side wall 41123 extending from the top wall 41122. The lower yoke 41121 includes a bottom wall 41124 and a second side wall 41125 extending from the bottom wall 41124. The first side wall 41123 and the second side wall 41125 are welded and fixed. The upper yoke 41120 includes an upper through hole 41126 penetrating through the top wall 41122. The cross section of the coil bobbin 4110 is roughly an I-shaped, hollow revolving structure, and it includes a receiving portion 41101. The mover sleeve 4113 passes through the upper through hole 41126 and is received in the receiving portion 41101. The lower yoke 41121 includes a lower perforation 41127. The stator 4114 passes through the lower through hole 41127 and is received in the receiving portion 41101. The mover sleeve 4113 is in an interference fit with the upper yoke 41120, and the stator 4114 is in an interference fit with the coil frame 4110.

In the illustrated embodiment, the housing 410 and the yoke assembly 411 are integrally molded by injection molding to realize the waterproof function of the solenoid valve 41; and the housing 410 is covered with the connecting wire 45 Therefore, the connection position of the connecting wire 45 and the housing 410 can also be waterproof. The housing 410 includes a hole 4101, a recessed portion 4102, a second limiting portion 4104 and a plurality of second assembly holes 4103. The hole 4101 allows the mover 4115 to pass through to abut the sealing member 43. The solenoid valve assembly 4 includes a locking member 47 assembled to the first assembly hole 4205 of the communicating tube 42 and the second assembly hole 4103 of the housing 410 to fix the communicating tube 42 to The housing 410. The sealing member 43 is received in the recess 4102. The first limiting portion 4310 of the sealing member 43 cooperates with the second limiting portion 4104 of the housing 410 to prevent the sealing member 43 from moving relative to the housing 410, effectively ensuring the sealing effect of the sealing member 43 .

As shown in FIG. 8 and FIG. 9, the base 430 of the sealing member 43 fits and seals the housing 410 to prevent the fluid in the communication pipe 42 from entering the solenoid valve 41 and prevent the fluid from corroding the solenoid valve 41 , Effectively prolong the service life of the solenoid valve 41; secondly, the solenoid valve 41 does not need to use corrosion-resistant materials, which saves costs; again, due to the arrangement of the seal 43, fluid is prevented from entering the solenoid valve 41 The solenoid valve 41 does not need to be additionally provided with a waterproof and magnetic isolation sleeve, which saves costs. At the same time, according to an embodiment of the present invention, since the electromagnetic valve 41 omits a waterproof and magnetic isolation sleeve, the solenoid valve 41 is not added The magnetic resistance in the magnetic permeability circuit makes the solenoid valve 41 have a better magnetic permeability effect, and meets the requirements of miniaturization, light weight, and low power consumption under the same electromagnetic attraction force of the solenoid valve 41.

Fig. 13 shows a perspective view of a solenoid valve 41A according to another embodiment of the present invention. The solenoid valve 41A is a solenoid valve in the form of a split housing. Specifically, in the illustrated embodiment, the housing 410A includes a first housing 4101A and a second housing 4102A assembled together, and the yoke assembly 411 is assembled into the housing 410A. The connection between the first housing 4101A and the second housing 4102A can be waterproofed to achieve the waterproof effect of the solenoid valve 41A.

In the illustrated embodiment, the yoke part 4112 is formed by welding the upper yoke 41120 and the lower yoke 41121, which is easy to manufacture and assemble. FIG. 14 shows a perspective view of a yoke assembly 411A according to another embodiment of the present invention. In the illustrated embodiment, the yoke member 4112A is formed by cutting a hollow steel tube with a square cross-section. The yoke part 4112A is sleeved to the coil bobbin 4110. The yoke part 4112A has high processing efficiency and reduces production costs.

FIG. 15 shows a perspective view of a yoke assembly 411B according to another embodiment of the present invention. In the illustrated embodiment, the upper yoke 41120B includes a top portion 41122B and an annular first side 41123B extending from the top portion 41122B. The lower yoke 41121B includes a bottom 41124B and an annular second side 41125B extending from the bottom 41124B. The first side 41123B and the second side 41125B are fixed by welding or riveting, and so on. FIG. 16 shows a perspective view of a yoke assembly 411C according to still another embodiment of the present invention. In the illustrated embodiment, the yoke part 4112C includes a hollow cylindrical first yoke 41122C, and an upper yoke 41120C and a lower yoke 41121C that are welded and fixed to the upper and lower ends of the first yoke 41122C. The

magnetic yoke assemblies

411B and 411C shown in FIG. 15 and FIG. 16 form a closed coating structure, which increases the magnetic permeability area and has better magnetic permeability.

FIG. 17 shows a communication pipe 42A of another embodiment. The individual illustrations in the following refer to the above-mentioned embodiments. In the illustrated embodiment, the first passage 4210 includes a first transition portion 42101 disposed on the connecting portion 420. The connecting portion 420 includes a tubular portion 4206 extending into the first transition portion 42101. The second passage 4220 includes a second transition portion 42201 disposed on the tubular portion 4206. The third passage 4230 includes a third transition portion 42301 disposed on the tubular portion 4206. When the communicating tube 42A is assembled and used with the sealing member 43, the base 430 of the sealing member 43 and the tubular portion 4206 fit and seal, so as to block the second channel 4220 and the third channel 4230 , The first channel 4210, the second channel 4220, and the third channel 4230 are disconnected in pairs. According to an embodiment of the present invention, the base 430 of the sealing member 43 only fits and seals with the end of the tube wall surrounding the first channel 4220 and the end of the tube wall surrounding the second channel 4230. The communicating pipe 42A further includes a second annular protrusion 4203, the second protrusion 4203 surrounds the first transition portion 42101, and the side wall 431 of the sealing member 43 and the second protrusion 4203 4203 fits and seals to prevent fluid from flowing out through the gap between the communicating pipe 42A and the side wall 431. However, the present invention is not limited to this. According to an embodiment of the present invention, the base 430 of the seal 43 may only be connected to the end of the tube wall surrounding the first channel 4220 and the tube wall surrounding the second channel 4230. Two of the ends of the tube wall and the ends of the tube wall surrounding the third channel 4230 are fitted and sealed so that the first channel 4220, the second channel 4230, and the third channel 4230 are in pairs Disconnect, for example, in FIG. 17, the base 430 of the sealing member 43 and the end of the tubular portion 4206 fit and seal.

FIG. 18 shows a communication pipe 42B according to another embodiment. The individual illustrations below refer to the above-mentioned embodiments. In the illustrated embodiment, the connecting portion 420 of the communicating tube 42B includes a receiving portion 4222 communicating with the second passage 4220 and the third passage 4230 and a tubular portion 4223 extending into the receiving portion 4222. The first passage 4210 penetrates the first extension portion 421B and the tubular portion 4223. When the coil 4111 is energized, due to the principle of electromagnetic induction, an electromagnetic attraction force is generated between the mover 4115 and the stator 4114 to drive the mover 4115 to move, so that the seal 43 is in an open state. The base 430 of the sealing member 43 is separated from the communicating tube 42; after the coil 4111 is de-energized, the mover 4115 moves under the elastic force of the elastic member 4116, so that the base of the sealing member 43 430 fits and seals the tubular portion 4223 to block the first channel 4210, so that the first channel 4210 is disconnected from the second channel 4220 and the first channel 4210 and the third channel are disconnected. 4230 disconnected. According to an embodiment of the present invention, after the coil 4111 is de-energized, the mover 4115 moves under the action of the elastic force of the elastic member 4116, so that the sealing member 43 is elastically deformed, so that the sealing member 43 is The base 430 and the tubular portion 4223 are attached and sealed. The communicating tube 42B further includes a second annular protrusion 4203, the second protrusion 4203 surrounds the receiving portion 4222, and the side wall 431 of the sealing member 43 is attached to the second protrusion 4203. It is sealed to prevent fluid from flowing out through the gap between the communicating pipe 42B and the side wall 431.

Fig. 19 shows a schematic cross-sectional view of a communication pipe sealing assembly according to another embodiment. The communicating pipe sealing assembly includes a communicating pipe 42, a base 47, a sealing member 43 located between the base 47 and the communicating pipe 42, a mover 4115 assembled to the base 47, and a mover 4115 located between the mover 4115 and the base 47. The elastic member 4116 between the bases 47. The elastic force of the elastic member 4116 presses against the mover 4115, and the mover 4115 presses against the sealing element 43, so that the sealing element 43 and the communicating tube 42 are attached and sealed. When spraying is required, the pressure of the fluid causes the sealing member 43 to break away from the seal with the communicating pipe 42, and the fluid flows out; when the pressure of the fluid disappears, the resisting force of the elastic member 4116 pushes up the seal. The piece 43 makes it fit and seal with the communicating pipe 42 to realize the function of preventing leakage and dripping.

FIG. 20 shows a schematic cross-sectional view of a communication pipe sealing assembly according to another embodiment. The communicating pipe sealing assembly includes a communicating pipe 42, a base 47, a sealing member 43 located between the base 47 and the communicating pipe 42, a mover 4115 and a top rod 48 assembled to the base 47. The top rod 48 is threadedly connected to the base 47. When the top rod 48 is rotated to move upward relative to the base 47, the top rod 48 pushes up the mover 4115, and the mover 4115 abuts the sealing member 43, so that the sealing member 43 fits and seals the communication pipe 42. When the top rod 48 is rotated to move downward relative to the base 47, the mover 4115 moves downward under the influence of gravity, and the seal 43 breaks the contact with the communication pipe 42.

It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these There is any such actual relationship or sequence between entities or operations. The terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements that are not explicitly listed. Elements, or also include elements inherent to such processes, methods, articles, or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or equipment that includes the element.

The device provided by the embodiment of the present invention has been introduced in detail above, and specific examples are used in this article to illustrate the principle and implementation of the present invention. The description of the above embodiment is only used to help understand the core idea of the present invention; at the same time, for Those of ordinary skill in the art, based on the idea of the present invention, will have changes in the specific implementation and the scope of application. In summary, the content of this specification should not be construed as limiting the present invention.

The content disclosed in this patent document contains copyrighted material. The copyright belongs to the copyright owner. The copyright owner does not object to anyone copying the patent document or the patent disclosure in the official records and archives of the Patent and Trademark Office.

Claims

A solenoid valve assembly, characterized in that it comprises: a solenoid valve, a communicating pipe, and a seal between the solenoid valve and the communicating pipe, and the communicating pipe includes at least a first channel and a second channel that communicate with each other , The sealing member is attached to the solenoid valve for sealing, the solenoid valve includes a mover and an elastic member that abuts against the mover. After the solenoid valve is de-energized, the elastic force of the elastic member drives the The mover moves to make the sealing member and the communication pipe fit and seal, so as to disconnect the first channel and the second channel.
The solenoid valve assembly according to claim 1, wherein the solenoid valve includes a housing, the housing includes a hole for the mover to pass through and a recess for accommodating the sealing member, the sealing The parts are attached and sealed with the shell.
The solenoid valve assembly according to claim 2, wherein the solenoid valve assembly includes a locking member to fix the communication pipe to the housing.
The solenoid valve assembly according to claim 2, wherein the solenoid valve comprises a magnetic yoke assembly, the housing is wrapped around the magnetic yoke assembly, and the magnetic yoke assembly is integrally formed with the housing.
The solenoid valve assembly according to claim 2, wherein the solenoid valve comprises a magnetic yoke assembly, the housing is wrapped around the magnetic yoke assembly, and the housing comprises a first housing and a second housing assembled together. A housing, the yoke assembly is assembled into the housing.
The solenoid valve assembly of claim 5, wherein the connection between the first housing and the second housing is sealed.
The solenoid valve assembly according to claim 2, wherein the solenoid valve includes a yoke assembly located in the housing, the yoke assembly includes a coil bobbin, a coil wound to the coil bobbin, and an enclosure To the yoke piece of the coil bobbin, the yoke piece has a ring shape.
The solenoid valve assembly according to claim 2, wherein the solenoid valve includes a yoke assembly located in the housing, the yoke assembly includes a coil bobbin, a coil wound to the coil bobbin, and an enclosure To the yoke piece of the coil bobbin, the yoke piece includes an upper yoke and a lower yoke that are fixed together, and the upper yoke and the lower yoke are enclosed in a ring.
The solenoid valve assembly according to claim 8, wherein the upper magnetic yoke includes a top wall and a first side wall extending from the top wall, and the lower magnetic yoke includes a bottom wall and a first side wall extending from the bottom wall. An extended second side wall, the first side wall and the second side wall are welded and fixed.
The solenoid valve assembly according to claim 2, wherein the solenoid valve includes a yoke assembly located in the housing, the yoke assembly includes a coil bobbin, a coil wound to the coil bobbin, and an enclosure To the yoke part of the coil bobbin, the yoke part includes an upper yoke and a lower yoke, the upper yoke includes a top portion and an annular first side edge extending from the top portion, the lower yoke It includes a bottom and an annular second side edge extending from the bottom, and the first side edge and the second side edge are welded and fixed.
The solenoid valve assembly according to claim 2, wherein the solenoid valve includes a yoke assembly located in the housing, the yoke assembly includes a coil bobbin, a coil wound to the coil bobbin, and an enclosure The yoke part to the coil bobbin, the yoke part includes a first yoke in a ring shape, and an upper yoke and a lower yoke that are welded and fixed to the upper and lower ends of the first yoke.
The solenoid valve assembly according to any one of claims 8 to 11, wherein the upper magnetic yoke includes an upper perforation, the magnetic yoke assembly includes a mover sleeve, the coil bobbin includes a receiving portion, and the The mover sleeve passes through the perforation and is received in the receiving portion, the lower yoke includes a lower perforation, the yoke assembly includes a stator, and the stator passes through the lower perforation and is received in the receiving portion.
The solenoid valve assembly according to claim 12, wherein the communication pipe further comprises a third passage, and when the sealing member is in an open state, the first passage and the second passage and the third passage The passage is communicated, and the mover moves to drive the sealing element to be attached to the communicating tube to disconnect the first passage and the second passage and the first passage and the third passage.
The solenoid valve assembly according to claim 13, wherein the sealing element comprises a base and a side wall extending from the base, the base and the side wall enclose a space, and the sealing element is in an open state At this time, the space communicates with the first passage, the second passage, and the third passage.
The solenoid valve assembly according to claim 14, wherein the base and the communicating tube are attached and sealed to block the first channel and the second channel, and the first channel, the The second channel and the third channel are disconnected.
The solenoid valve assembly according to claim 15, wherein the communication pipe includes a connecting portion, and a first extension portion, a second extension portion, and a third extension portion extending from the connecting portion, and the first passage The first extension part passes through, the second passage passes through the second extension part, the third passage passes through the third extension part, and the connecting part includes an annular first protruding part and connecting the The partition of the first protruding part, the base part, the first protruding part and the partition are attached and sealed.
The solenoid valve assembly according to claim 16, wherein the communication pipe comprises an annular second protruding portion, the second protruding portion surrounds the first protruding portion, and the side wall is connected to the The second protruding part fits and seals.
The solenoid valve assembly according to claim 14, wherein the base and the communicating tube are abutted and sealed to block the second channel and the third channel, the first channel, the The second channel and the third channel are disconnected in pairs.
The solenoid valve assembly according to claim 18, wherein the communication pipe includes a connecting portion, and a first extension portion, a second extension portion, and a third extension portion extending from the connecting portion, and the first passage Through the first extension portion, the second channel penetrates the second extension portion, the third channel penetrates the third extension portion, and the first channel includes a first transition disposed at the connecting portion Portion, the connecting portion includes a tubular portion extending into the first transition portion, the second passage includes a second transition portion disposed on the tubular portion, and the third passage includes a tubular portion disposed on the tubular portion. The third transition part, the base part and the tubular part are attached and sealed.
The solenoid valve assembly according to claim 19, wherein the communication pipe comprises an annular second protruding portion, the second protruding portion surrounds the first transition portion, and the side wall is connected to the The second protruding part fits and seals.
A movable platform for spraying fluid, characterized in that the movable platform includes a spraying system, and the spraying system includes a water pump, a spray head, and the solenoid valve assembly according to any one of claims 1 to 12; Wherein, the fluid flows from the water pump through the solenoid valve assembly and is ejected from the spray head.
The movable platform according to claim 21, wherein the spray system further comprises a medicine tank, a diverter, and a flow meter, wherein the fluid flows out of the medicine tank and passes through the diverter and the flow meter in sequence. After the meter, the water pump, and the solenoid valve are liquefied by the spray head, they are sprayed.
The movable platform of claim 22, wherein the communication pipe includes an inlet located at one end of the first channel and a first outlet located at one end of the second channel, and fluid enters from the inlet In the first channel, when the seal is in an open state, fluid enters the second channel from the first channel and flows out from the first outlet.
A movable platform for spraying fluid, wherein the movable platform includes a spraying system, and the spraying system includes a water pump, a spray head, and the solenoid valve assembly according to any one of claims 13 to 20; Wherein, the fluid flows from the water pump through the solenoid valve assembly and is ejected from the spray head.
The movable platform according to claim 24, wherein the communication pipe includes an inlet located at one end of the first channel, a first outlet located at one end of the second channel, and a third channel The second outlet at one end of the fluid enters the first channel from the inlet, and when the seal is in an open state, the fluid enters the second channel from the first channel and flows out from the first outlet, and It enters the third passage from the first passage and flows out from the second outlet.