WO2021087772A1 - Ensemble électrovanne et plateforme mobile - Google Patents

Ensemble électrovanne et plateforme mobile Download PDF

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Publication number
WO2021087772A1
WO2021087772A1 PCT/CN2019/115799 CN2019115799W WO2021087772A1 WO 2021087772 A1 WO2021087772 A1 WO 2021087772A1 CN 2019115799 W CN2019115799 W CN 2019115799W WO 2021087772 A1 WO2021087772 A1 WO 2021087772A1
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WO
WIPO (PCT)
Prior art keywords
solenoid valve
yoke
channel
valve assembly
passage
Prior art date
Application number
PCT/CN2019/115799
Other languages
English (en)
Chinese (zh)
Inventor
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 (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to CN201980033203.1A priority Critical patent/CN112166273A/zh
Priority to PCT/CN2019/115799 priority patent/WO2021087772A1/fr
Publication of WO2021087772A1 publication Critical patent/WO2021087772A1/fr

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Classifications

    • 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
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/029—Electromagnetically actuated valves
    • 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
    • F16K31/0603—Multiple-way valves
    • F16K31/0624—Lift valves
    • 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
    • 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
    • F16K31/10—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid with additional mechanism between armature and closure member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/08—Pipe-line systems for liquids or viscous products
    • F17D1/14—Conveying liquids or viscous products by pumping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product

Definitions

  • the invention relates to the technical field of movable platforms, in particular to a solenoid valve assembly and a movable platform.
  • the relevant movable platform uses solenoid valves to open or close the pipeline.
  • the fluid in the pipeline will enter the solenoid valve.
  • 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.
  • 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.
  • 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.
  • 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;
  • FIG. 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;
  • FIG. 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;
  • FIG. 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;
  • FIG. 10 is an enlarged view of the circled part of the cross-sectional schematic diagram shown in FIG. 9;
  • FIG. 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;
  • FIG. 13 is a perspective view of another embodiment of the solenoid valve of the solenoid valve assembly of the present invention.
  • FIG. 14 is a perspective view of another embodiment of the yoke assembly of the solenoid valve assembly of the present invention.
  • FIG. 15 is a perspective view of another embodiment of the yoke assembly of the solenoid valve assembly of the present invention.
  • FIG. 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.
  • FIG. 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 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.
  • 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.
  • the sealing member 43 is made of an elastic material.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the base 430 of the sealing member 43 is only sealed with the first channel 4210 and the second channel 4220.
  • 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.
  • the second passage 4220 and the third passage 4230 are also disconnected.
  • 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.
  • the communication pipe 42 is a three-way pipe.
  • 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.
  • the solenoid valve 41 includes a yoke assembly 411 and a housing 410 covering the yoke assembly 411.
  • 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 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.
  • the sealing member 43 is made of an elastic material.
  • the sealing member 43 is a diaphragm.
  • 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.
  • 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.
  • the base 430 and the communicating tube 42 are attached and sealed.
  • 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.
  • the mover 4115 compresses the elastic member 4116.
  • 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.
  • 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 .
  • 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.
  • the solenoid valve 41 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 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.
  • 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.
  • 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.
  • the present invention is not limited to this.
  • 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.
  • FIG. 18 shows a communication pipe 42B according to another 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the mover 4115 moves downward under the influence of gravity, and the seal 43 breaks the contact with the communication pipe 42.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

La présente invention concerne un ensemble électrovanne, comprenant: une électrovanne (41), un tuyau de communication (42), et un élément d'étanchéité (43) situé entre l'électrovanne et le tuyau de communication. Le tuyau de communication comprend au moins un premier canal (4210) et un second canal (4220) qui communiquent. L'élément d'étanchéité est fixé et scellé à l'électrovanne. L'électrovanne comprend un dispositif de déplacement (4115) et un élément élastique (4115) qui vient en butée contre le dispositif de déplacement. Une fois que l'électrovanne est mise hors tension, la force élastique de l'élément élastique entraîne le déplacement du dispositif de déplacement, de telle sorte que l'élément d'étanchéité est fixé et scellé au tuyau de communication de façon à déconnecter le premier canal du second canal. L'élément d'étanchéité du présent ensemble électrovanne est fixé et scellé à l'électrovanne, ce qui empêche efficacement le fluide dans le tuyau de communication de pénétrer à l'intérieur de l'électrovanne, protège efficacement l'électrovanne de la corrosion et prolonge la durée de vie de l'électrovanne.
PCT/CN2019/115799 2019-11-05 2019-11-05 Ensemble électrovanne et plateforme mobile WO2021087772A1 (fr)

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