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CN118654145B - Solenoid valve with longer service life - Google Patents

Solenoid valve with longer service life Download PDF

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Publication number
CN118654145B
CN118654145B CN202411133923.4A CN202411133923A CN118654145B CN 118654145 B CN118654145 B CN 118654145B CN 202411133923 A CN202411133923 A CN 202411133923A CN 118654145 B CN118654145 B CN 118654145B
Authority
CN
China
Prior art keywords
annular
groove
hole
valve
sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202411133923.4A
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Chinese (zh)
Other versions
CN118654145A (en
Inventor
林哲锋
朱正西
孙晓丰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG JIALEJIA ELECTRICAL APPLIANCES CO Ltd
Original Assignee
ZHEJIANG JIALEJIA ELECTRICAL APPLIANCES CO Ltd
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Priority to CN202411133923.4A priority Critical patent/CN118654145B/en
Publication of CN118654145A publication Critical patent/CN118654145A/en
Application granted granted Critical
Publication of CN118654145B publication Critical patent/CN118654145B/en
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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
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31—Self-supporting filtering elements
    • B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • 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
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/184—Combined check valves and 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
    • F16K31/0644—One-way valve
    • F16K31/0655—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
    • F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • F16K31/086—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet the magnet being movable and actuating a second magnet connected to the closing element
    • F16K31/088—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet the magnet being movable and actuating a second magnet connected to the closing element the movement of the first magnet being a rotating or pivoting movement
    • 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
    • F16K31/105—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 for rotating 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
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
    • F16K31/402—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a diaphragm
    • F16K31/404—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a diaphragm the discharge being effected through the diaphragm and being blockable by an electrically-actuated member making contact with the diaphragm
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
    • F16K5/0421—Fixed plug and turning sleeve
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
    • F16K5/0442—Spindles and actuating means
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/10—Means for additional adjustment of the rate of flow

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The invention discloses an electromagnetic valve with longer service life, which comprises a valve body, a sealing assembly and an electromagnetic driving assembly, wherein an inlet runner and an outlet runner are arranged in the valve body, an annular sealing seat is arranged in the valve body, an end cover is arranged at an opening at the upper end of the valve body, the electromagnetic driving assembly is arranged at the upper end of the end cover, the sealing assembly comprises a water blocking disc and a diaphragm, the diaphragm is arranged on the water blocking disc, the diaphragm comprises a diaphragm main body and an elastic part arranged at the outer edge of the diaphragm main body, the elastic part comprises an elastic inner ring, an elastic outer ring and a connecting flange, the elastic inner ring is of a horn-shaped structure with a big top and a small bottom, the water blocking disc is connected to the inner side of the elastic inner ring, the lower end of the elastic inner ring is connected with the outer edge of the diaphragm main body, the upper end of the elastic inner ring is connected with the upper end of the elastic outer ring, and the connecting flange is arranged at the lower end of the elastic outer ring and is used for being connected with the inner wall of the valve body. The invention can obviously reduce the shearing force suffered by the diaphragm when the valve is opened and closed, thereby prolonging the service life of the diaphragm and further prolonging the service life of the electromagnetic valve.

Description

Solenoid valve with longer service life
Technical Field
The invention relates to the technical field of valves, in particular to a solenoid valve with longer service life.
Background
Solenoid valves are electromagnetic controlled industrial equipment, are automatic basic elements for controlling fluids, and belong to actuators, not limited to hydraulic and pneumatic. For use in industrial control systems to regulate the direction, flow, velocity and other parameters of a fluid. The solenoid valve can be matched with different circuits to realize expected control, and the control precision and flexibility can be ensured. Solenoid valves are many, and different solenoid valves function at different locations in the control system, most commonly one-way valves, safety valves, directional control valves, speed regulating valves, and the like.
The sealing component in the existing electromagnetic valve generally comprises a diaphragm and a water retaining disk, wherein the diaphragm is assembled with the water retaining disk, the diaphragm comprises a diaphragm main body positioned in the middle and an elastic connecting portion arranged on the outer periphery of the diaphragm main body, the outer edge of the elastic connecting portion is fixed in the valve body, the cross section of the elastic connecting portion is in an inverted U-shaped shape, the outer periphery of the water retaining disk is vertically extended and provided with an annular flange, and the inner side of the elastic connecting portion is tightly attached to the outer side of the annular flange. Because solenoid valve opens and close the in-process, the baffle disc can carry out vertical activity with the diaphragm, and in the activity in-process, the elastic connection portion of baffle disc receives vertical direction effect, and the U-shaped department of bending of elastic connection portion receives the shearing force great, takes place to damage very easily, and life is shorter.
Therefore, there is a need for an improvement in the above-described structure.
Disclosure of Invention
The invention aims to provide the electromagnetic valve with longer service life, which can obviously reduce the shearing force suffered by the diaphragm when the valve is opened and closed, thereby prolonging the service life of the diaphragm and further prolonging the service life of the electromagnetic valve.
The electromagnetic valve comprises a valve body, a sealing component and an electromagnetic driving component, wherein an inlet runner and an outlet runner are arranged in the valve body, an annular sealing seat is arranged in the valve body and corresponds to a position between the inlet runner and the outlet runner, an end cover is arranged at an opening at the upper end of the valve body, the electromagnetic driving component is arranged at the upper end of the end cover and is used for controlling the sealing component to prop against or keep away from the upper end of the annular sealing seat so as to realize the conduction or blocking of the inlet runner and the outlet runner, the sealing component comprises a water blocking disc and a diaphragm, the diaphragm is arranged on the water blocking disc, the diaphragm comprises a diaphragm main body and an elastic part arranged at the outer edge of the diaphragm main body, the elastic part comprises an elastic inner ring, an elastic outer ring and a connecting flange, the elastic inner ring is of a horn mouth structure with a big top and a small bottom, the water blocking disc is connected to the inner side of the elastic inner ring, the lower end of the elastic inner ring is connected with the outer edge of the diaphragm main body, and the upper end of the elastic inner ring is connected with the upper end of the elastic outer ring, and the connecting flange is arranged at the lower end of the elastic inner ring is used for being connected with the valve body.
Through adopting above-mentioned technical scheme, the diaphragm adopts special design structure for the elasticity inner ring of elasticity portion has certain inclination, and elasticity inner ring and elasticity outer loop form a cross-section for the annular structure of reverse V-arrangement, and when seal assembly axial activity, reduce the influence that receives axial force itself through the deformation volume of elasticity inner ring on vertical, thereby show the shearing force that the diaphragm received when reducing valve and open and close, in order to promote the life of diaphragm, and then promote the life of solenoid valve.
The electromagnetic driving assembly comprises a coil framework, an electromagnetic coil, an inner sleeve and a valve core, wherein the coil framework is arranged on an end cover, a plastic package body which is annularly arranged is arranged on the coil framework, the electromagnetic coil is arranged in the plastic package body, the inner sleeve axially penetrates through the center of the coil framework, the valve core can be axially movably arranged in the inner sleeve and is used for being matched with the sealing assembly, a reset spring for applying axial acting force to the valve core is further arranged in the inner sleeve, a compressing part is arranged at the inner end of the inner sleeve, a connecting groove is formed in the inner wall of the valve body, and when the end cover is arranged on the valve body, the inner end of the end cover is abutted against the upper end of the compressing part of the inner sleeve, so that the connecting flange on the diaphragm is compressed in the connecting groove by the inner sleeve.
Through adopting above-mentioned technical scheme, can drive the case and go up when solenoid circular telegram to make seal assembly leave annular seal seat under the effect of water pressure, with this solenoid valve of opening, when solenoid outage, reset spring applys spring force to the case, makes the case descend, thereby makes seal ring assembly pressed on annular seal seat, with this solenoid valve of closing.
The elastic inner ring is further provided with an annular clamping part, the cross section of the annular clamping part is conical, rectangular or circular, an annular clamping groove matched with the annular clamping part is formed in the periphery of the water retaining disc, a middle hole is formed in the middle of the membrane main body, a connecting rod penetrates through the middle hole, and a limiting part propped against the bottom end of the membrane main body is arranged on the periphery of the connecting rod.
Through adopting above-mentioned technical scheme, can realize the connection of water blocking dish and diaphragm, and connection structure is simple reliable, and the dismouting is very convenient.
The invention is further characterized in that a sealing groove for installing a sealing ring is arranged on the periphery of the limiting part, when the electromagnetic driving assembly presses the sealing assembly on the annular sealing seat, the periphery of the limiting part is attached to the inner wall of the annular sealing seat, and a plurality of sealing convex ribs which are concentrically arranged and tightly abutted against the lower end of the water retaining disc are also arranged at the upper end of the diaphragm main body.
By adopting the technical scheme, when the electromagnetic valve is closed, the reliable tightness between the sealing assembly and the annular sealing seat can be ensured, and medium leakage from a gap between the sealing assembly and the annular sealing seat is avoided.
The invention is further characterized in that a first annular concave part is arranged at the outer edge of the upper end of the diaphragm main body, a second annular concave part is arranged at the outer edge of the lower end of the water retaining disc, the first annular concave part and the second annular concave part are combined to form a first cavity, a second cavity is arranged above a corresponding sealing assembly in the valve body, a plurality of first through holes for communicating an inlet runner with the first cavity are respectively arranged on the diaphragm main body in a circumferential array, a second through hole for communicating the first cavity with the second cavity is arranged on the water retaining disc, and a third through hole for communicating the second cavity with an outlet runner is arranged at the position of the water retaining disc right below the valve core.
By adopting the technical scheme, the valve is opened and closed by changing the fluid pressure difference, and the valve has the advantages of higher response speed, stronger adaptability and lower energy consumption.
The invention further provides that a filter screen is arranged in the inlet flow passage, the filter screen comprises an annular substrate, a hemispherical guiding part arranged in the middle of the annular substrate and an annular supporting part arranged on the periphery of the annular substrate, a supporting step is arranged in the inlet flow passage, the annular substrate is abutted against the supporting step, the hemispherical guiding part protrudes towards the direction away from the outlet flow passage, the annular supporting part extends towards the direction away from the outlet flow passage, the outer circular surface of the annular supporting part is tightly attached to the inner circular surface of the inlet flow passage, and an annular storage groove is formed among the annular substrate, the hemispherical guiding part and the annular supporting part.
Through adopting above-mentioned technical scheme, can filter the medium in the runner, store in the annular stock chest of periphery after the large granule impurity filters, can guarantee that middle part hemisphere guiding portion surface does not take place to block up to guarantee that the medium passes through smoothly.
The invention further provides an emergency mechanism, which comprises an emergency driving disc, a follow-up sleeve and a plurality of check valves, wherein the emergency driving disc is rotatably arranged on the inner side of an annular sealing seat, a plurality of first through holes are distributed on the emergency driving disc in a circumferential array, an emergency operation rod is arranged in the middle of the emergency driving disc, a shaft hole is formed in the bottom of the valve body, the emergency operation rod penetrates through the shaft hole and extends to the outside of the valve body, a first sealing ring used for forming sealing fit with the inner wall of the shaft hole is arranged on the periphery of the emergency operation rod, a positioning step is arranged on the periphery of the annular sealing seat, the follow-up sleeve is rotatably arranged on the periphery of the annular sealing seat, and a plug pin used for limiting the follow-up sleeve on the positioning step is inserted on the periphery of the annular sealing seat;
The emergency driving disc is characterized in that a first annular groove is formed in the periphery of the emergency driving disc, a plurality of first mounting grooves are formed in the inner circle surface of the first annular groove, first magnets are embedded in each first mounting groove, first rubber rings are sleeved on the first annular grooves, the first magnets are limited in the corresponding first mounting grooves by the first rubber rings, a second annular groove is formed in the inner periphery of the follow-up sleeve, a plurality of second mounting grooves corresponding to the first mounting grooves are formed in the inner circle surface of the second annular groove, second magnets are embedded in each second mounting groove, second rubber rings are sleeved on the second annular grooves, the second magnets are limited in the corresponding second mounting grooves, and the first magnets and the corresponding second magnets are arranged in a mutually attractive manner;
the side part of the annular sealing seat is provided with a plurality of inner holes in a circumferential array, the follow-up sleeve is provided with a plurality of outer holes corresponding to the inner holes, the upper and lower positions of the corresponding inner holes on the outer side of the annular sealing seat are respectively provided with a second sealing ring used for forming sealing fit with the inner wall of the follow-up sleeve, and the emergency driving disc is provided with a first position in which the outer holes on the follow-up sleeve are communicated with the inner holes on the annular sealing seat and a second position in which the outer holes on the follow-up sleeve are completely blocked from the inner holes on the annular sealing seat when the follow-up sleeve is driven to rotate through magnetic attraction.
By adopting the technical scheme, when the electromagnetic driving mechanism works normally, the emergency mechanism does not work, namely the emergency driving disc is positioned at the second position, the outer hole on the follow-up sleeve is completely blocked from the inner hole on the annular sealing seat, in the production process, when the electromagnetic valve is closed and the electromagnetic driving mechanism fails, if the electromagnetic driving mechanism needs to continue to operate in a short time, the emergency mechanism is started, the emergency driving disc rotates to the first position, the emergency driving disc drives the follow-up sleeve to rotate through the magnetic attraction effect, the outer hole on the follow-up sleeve is promoted to be communicated with the inner hole on the annular sealing seat, when the pressure of a medium in the inlet flow passage is greater than the set opening pressure of the check valve on the outer hole on the follow-up sleeve, the check valve is opened, the inlet flow passage and the outlet flow passage are communicated, and the production line can work in an emergency mode.
The check valve further comprises a sleeve, a support disc, a valve clack and a pre-tightening spring, wherein the sleeve is in threaded connection with the outer end of a corresponding outer hole, the outer end of the sleeve is in threaded connection with a locking nut, the locking nut abuts against the outer wall of the annular sealing seat, the support disc is in threaded connection with the sleeve, a plurality of second through holes are distributed on the support disc in a circumferential array, a guide hole with a square cross section is formed in the center of the support disc, the valve clack is arranged in the sleeve, a guide rod which extends axially and is square in cross section is arranged on the valve clack, the guide rod penetrates through the guide hole, a sealing flange which extends inwards is arranged at the inlet of the outer end of the sleeve, the pre-tightening spring is sleeved on the periphery of the guide rod, one end of the pre-tightening spring abuts against the support disc, the other end of the pre-tightening spring abuts against the valve clack, and the valve clack is abutted against the sealing flange, and the outer end of the valve clack is further provided with a first hexagonal groove.
Through adopting above-mentioned technical scheme, this check valve simple structure is reliable, and the equipment is very convenient, and the check valve sets for opening pressure adjustable moreover, promptly through inserting hexagonal wrench into the first hexagonal groove of valve clack, rotate the valve clack and can drive the supporting disk and rotate, make supporting disk axial displacement to change the compression volume of pretension spring, and then change the pretension spring and to the pretightning force that the valve clack applyed, realize the check valve and set for the regulation of opening pressure.
The invention further provides that a positioning groove is formed in the inner wall of the valve body, the bottom of the annular sealing seat is embedded in the positioning groove, a sealing gasket is clamped between the bottom end of the annular sealing seat and the inner end surface of the positioning groove, a lock hole communicated with the inlet flow passage is formed in one side of the positioning groove, an L-shaped locking groove communicated with the upper end of the positioning groove is formed in the other side of the positioning groove, a locking assembly and a fixed locking piece are arranged on the outer side of the annular sealing seat, the locking assembly comprises a movable locking piece, a locking spring and a gland, a first side hole is formed in the outer side of the annular sealing seat, the gland is arranged at the outer end of the first side hole, the movable locking piece penetrates through the gland, a limit convex edge limiting with the gland to form a stroke is arranged at the inner end of the movable locking piece, the locking spring is arranged in the first side hole and is used for exerting an outward spring force on the movable locking piece, a second side hole is further formed in the outer side of the annular sealing seat, one end of the fixed locking piece is in threaded connection with the second side hole, and when the bottom of the annular sealing seat is arranged in the positioning groove and enables the fixed locking piece to slide to the inner end of the L-shaped locking piece to slide into the lock hole and move downwards to the lock hole.
Through adopting above-mentioned technical scheme, the detachable design of annular seal seat has made things convenient for emergency mechanism's dismouting operation greatly, can wholly take out annular seal seat when assembling promptly, installs follow-up cover and check valve on annular seal seat again, and the dismantlement operation is the same.
The emergency control valve is further characterized in that a fan-shaped groove is formed in the inner wall of the valve body at a position corresponding to the inner end of the shaft hole, a travel convex part is arranged on the periphery of the emergency control rod, when the emergency control rod rotates, the travel convex part rotates in the fan-shaped groove, when the travel convex part abuts against one end of the fan-shaped groove, the emergency driving disc is located at a first position, when the travel convex part abuts against the other end of the fan-shaped groove, the emergency driving disc is located at a second position, a relief groove is formed in the outer side of the valve body at a position corresponding to the outer end of the shaft hole, a limit nut is connected to the outer end of the emergency control rod through threads, a gasket is clamped between the limit nut and the inner end of the relief groove, the outer end of the emergency control rod, the limit nut and the gasket are all arranged in the relief groove, and the outer end of the emergency control rod is provided with a second hexagonal groove.
Through adopting above-mentioned technical scheme, can carry out axial spacing to emergency operation pole, make it have the spacing function of angle simultaneously, the user of being convenient for accurately adjusts emergency drive dish to first position or second position.
Drawings
FIG. 1 is a cross-sectional view of the whole of example 1;
FIG. 2 is a cross-sectional view of the seal assembly of example 1;
FIG. 3 is a cross-sectional view of the whole of example 2;
FIG. 4 is a schematic view of the emergency mechanism in embodiment 2;
fig. 5 is a schematic view of the mounting structure of the check valve in embodiment 2;
fig. 6 is a schematic view showing the internal structure of the valve body in embodiment 2.
In the figure, 1, a valve body; 2, a sealing assembly; 3, an electromagnetic driving assembly; 4, inlet flow path, 5, outlet flow path, 6, annular seal seat, 7, end cap, 8, water stop disc, 9, diaphragm, 10, diaphragm body, 11, spring portion, 12, spring inner ring, 13, spring outer ring, 14, connecting flange, 15, coil bobbin, 16, solenoid, 17, inner sleeve, 18, spool, 19, plastic package, 20, return spring, 21, hold down portion, 22, connecting groove, 23, annular snap-in portion, 24, annular snap-in groove, 25, mid-hole, 26, connecting rod, 27, retainer, 28, seal groove, 29, sealing bead, 30, first annular recess, 31, second annular recess, 32, first chamber, 33, second chamber, 34, first through-hole, 35, second through-hole, 36, third through-hole, 37, filter screen, 38, annular base, 39, hemispherical guide portion, 40, annular support portion, 41, support step, 42, annular reservoir 43, emergency mechanism, 44, emergency drive disc, 45, follower, 46, 47, emergency valve, 47, second annular recess, 30, first annular recess, 31, second annular recess, 32, first through-hole, 33, second annular recess, 33, second chamber, second through-hole, 34, first through-hole, second annular recess, 35, third through-hole, 37, filter, 38, annular base, 39, hemispherical guide portion, 40, annular guide portion, 40, annular support portion, 41, support step, 42, annular support step, 43, emergency drive disc, 45, follower, seat, 46, follower sleeve, 46, seat ring, seat ring, and seat ring, l-shaped locking groove, 78, locking component, 79, fixed locking block, 80, movable locking block, 81, locking spring, 82, gland, 83, first side hole, 84, limit convex edge, 85, second side hole, 86, sector groove, 87, travel convex part, 88, abdication groove, 89, limit nut, 90, gasket, 91 and second hexagonal groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The electromagnetic valve with longer service life comprises a valve body 1, a sealing assembly 2 and an electromagnetic driving assembly 3, wherein an inlet runner 4 and an outlet runner 5 are arranged in the valve body 1, an annular sealing seat 6 is arranged in the valve body 1 and corresponds to a position between the inlet runner 4 and the outlet runner 5, an end cover 7 is arranged at an opening at the upper end of the valve body 1, the electromagnetic driving assembly 3 is arranged at the upper end of the end cover 7 and used for controlling the sealing assembly 2 to abut against the upper end of the annular sealing seat 6 or keep away from the annular sealing seat 6 so as to realize the conduction or blocking of the inlet runner 4 and the outlet runner 5, the sealing assembly 2 comprises a water blocking disc 8 and a membrane 9, the membrane 9 is arranged on the water blocking disc 8, the membrane 9 comprises a membrane main body 10 and an elastic part 11 arranged at the outer edge of the membrane main body 10, the elastic part 11 comprises an elastic inner ring 12 in an integral structure, an elastic outer ring 13 and a connecting flange 14, the elastic inner ring 12 is in a horn mouth structure with a big upper part and a lower part, the inner side of the water blocking disc 8 is connected with the inner ring 12, the elastic ring 12 is connected with the outer ring 13 and the elastic ring 13 is arranged at the lower end of the outer ring 13, and the elastic ring is connected with the outer ring 13. The diaphragm 9 adopts special design structure for the elasticity inner ring 12 of elasticity portion 11 has certain inclination, and elasticity inner ring 12 and elasticity outer loop 13 form an annular structure that the cross-section is the reverse V shape, and when seal assembly 2 axial activity, reduce the influence that receives axial force itself through the deformation volume of elasticity inner ring 12 in vertical, thereby show the shearing force that reduces diaphragm 9 when opening and close of valve, in order to promote the life of diaphragm 9, and then promote the life of solenoid valve.
As shown in fig. 1, the electromagnetic driving assembly 3 includes a coil skeleton 15, an electromagnetic coil 16, an inner sleeve 17 and a valve core 18, the coil skeleton 15 is mounted on the end cover 7, a plastic package 19 which is annularly arranged is provided on the coil skeleton 15, the electromagnetic coil 16 is disposed in the plastic package 19, the inner sleeve 17 axially penetrates through the center of the coil skeleton 15, the valve core 18 can be axially movably disposed in the inner sleeve 17 to cooperate with the sealing assembly 2, a restoring spring 20 for applying an axial acting force to the valve core 18 is further disposed in the inner sleeve 17, a compressing portion 21 is disposed at the inner end of the inner sleeve 17, a connecting groove 22 is disposed on the inner wall of the valve body 1, and when the end cover 7 is mounted on the valve body 1, the inner end of the end cover 7 abuts against the upper end of the compressing portion 21 of the inner sleeve 17, so that the inner end cover 17 compresses the connecting flange 14 on the diaphragm 9 in the connecting groove 22. When the electromagnetic coil 16 is powered on, the valve core 18 can be driven to move upwards, so that the sealing assembly 2 is separated from the annular sealing seat 6 under the action of water pressure, the electromagnetic valve is opened, and when the electromagnetic coil 16 is powered off, the return spring 20 exerts spring force on the valve core 18 to enable the valve core 18 to move downwards, and the sealing ring assembly is pressed on the annular sealing seat 6, so that the electromagnetic valve is closed.
As shown in fig. 2, an annular clamping portion 23 is disposed on the inner side of the elastic inner ring 12, a cross section of the annular clamping portion 23 is in a conical shape or a rectangular shape or a circular shape, an annular clamping groove 24 which is matched with the annular clamping portion 23 is disposed on the outer periphery of the water retaining disc 8, the annular clamping portion 23 is in a conical shape in this embodiment, an upper end slope of the annular clamping portion 23 is smaller than a lower end slope, a middle hole 25 is disposed in the middle of the membrane main body 10, a connecting rod 26 is disposed on the water retaining disc 8, the connecting rod 26 penetrates through the middle hole 25, and a limiting portion 27 which abuts against the bottom end of the membrane main body 10 is disposed on the outer periphery of the connecting rod 26. The design can realize the connection of the water baffle disc 8 and the membrane 9, and the connection structure is simple and reliable, and the disassembly and assembly are very convenient.
As shown in fig. 2, the periphery of the limiting portion 27 is provided with a sealing groove 28 for installing a sealing ring, when the electromagnetic driving assembly 3 presses the sealing assembly 2 on the annular sealing seat 6, the periphery of the limiting portion 27 is attached to the inner wall of the annular sealing seat 6, and the upper end of the diaphragm main body 10 is further provided with a plurality of sealing ribs 29 which are concentrically arranged and tightly abutted against the lower end of the water retaining disc 8. This design ensures a reliable tightness between the sealing assembly 2 and the annular sealing seat 6 when the solenoid valve is closed, avoiding leakage of the medium from the gap between the two.
As shown in fig. 1 and fig. 2, a first annular concave portion 30 is disposed at an outer edge of an upper end of the diaphragm body 10, a second annular concave portion 31 is disposed at an outer edge of a lower end of the water blocking disc 8, the first annular concave portion 30 and the second annular concave portion 31 are combined to form a first chamber 32, a second chamber 33 is disposed above a corresponding sealing assembly 2 in the valve body 1, a plurality of first through holes 34 for communicating the inlet flow passage 4 with the first chamber 32 are disposed on the diaphragm body 10 in a circumferential array, a second through hole 35 for communicating the first chamber 32 with the second chamber 33 is disposed on the water blocking disc 8, and a third through hole 36 for communicating the second chamber 33 with the outlet flow passage 5 is disposed at a position right below the valve core 18 of the water blocking disc 8. The valve is opened and closed by changing the fluid pressure difference, and the valve has the advantages of higher response speed, higher adaptability and lower energy consumption.
As shown in fig. 1, a filter screen 37 is disposed in the inlet flow channel 4, the surface of the filter screen 37 is fully covered with filter holes, the filter screen 37 includes an annular base 38, a hemispherical guiding portion 39 disposed in the middle of the annular base 38, and an annular supporting portion 40 disposed at the outer periphery of the annular base 38, a supporting step 41 is disposed in the inlet flow channel 4, the annular base 38 is abutted to the supporting step 41, the hemispherical guiding portion 39 protrudes toward a direction away from the outlet flow channel 5, the annular supporting portion 40 extends toward a direction away from the outlet flow channel 5, and an outer circular surface of the annular supporting portion 40 is tightly attached to an inner circular surface of the inlet flow channel 4, and an annular storage groove 42 is formed among the annular base 38, the hemispherical guiding portion 39, and the annular supporting portion 40. The design can filter the medium in the flow channel, and the large-particle impurities are stored in the annular storage groove 42 at the periphery after being filtered, so that the surface of the middle hemispherical guide part 39 can be prevented from being blocked, and the smooth passing of the medium is ensured.
Embodiment 2 As shown in figures 3-6, an emergency mechanism 43 is added on the basis of embodiment 1, and the emergency mechanism 43 comprises an emergency driving disc 44, The emergency driving disc 44 is rotatably arranged on the inner side of the annular sealing seat 6, a plurality of first through holes 47 are distributed on the emergency driving disc 44 in a circumferential array, an emergency operation rod 48 is arranged in the middle of the emergency driving disc 44, a shaft hole 49 is formed in the bottom of the valve body 1, the emergency operation rod 48 penetrates through the shaft hole 49 and extends to the outside of the valve body 1, a first sealing ring 50 used for forming sealing fit with the inner wall of the shaft hole 49 is arranged on the periphery of the emergency operation rod 48, a positioning step 51 is arranged on the periphery of the annular sealing seat 6, the follow-up sleeve 45 is rotatably arranged on the periphery of the annular sealing seat 6, and a plug pin 52 used for limiting the follow-up sleeve 45 on the positioning step 51 is inserted on the periphery of the annular sealing seat 6; the emergency driving disc 44 is provided with a first annular groove 53 at the outer periphery, a plurality of first mounting grooves 54 are arranged on the inner circular surface of the first annular groove 53, a first magnet 55 is embedded in each first mounting groove 54, a first rubber ring 56 is sleeved on the first annular groove 53, the first magnet 55 is limited in the corresponding first mounting groove 54 by the first rubber ring 56, a second annular groove 57 is arranged at the inner periphery of the follow-up sleeve 45, a plurality of second mounting grooves 58 corresponding to the first mounting groove 54 are arranged on the inner circular surface of the second annular groove 57, a second magnet 59 is embedded in each second mounting groove 58, a second rubber ring 60 is sleeved on the second annular groove 57, the second magnet 59 is limited in the corresponding second mounting groove 58, the first magnet 55 and the corresponding second magnet 59 are mutually attracted and arranged in a magnetic pole, a plurality of inner holes 61 are distributed on the side part of the annular sealing seat 6 in a circumferential array, the following sleeve 45 is provided with a plurality of outer holes 62 corresponding to the inner holes 61, the upper and lower positions of the corresponding inner holes 61 on the outer side of the ring-shaped sealing seat 6 are respectively provided with a second sealing ring 63 used for forming sealing fit with the inner wall of the following sleeve 45, when the emergency driving disc 44 drives the following sleeve 45 to rotate through magnetic attraction, the emergency driving disc 44 is provided with a first position in which the outer holes 62 on the following sleeve 45 are communicated with the inner holes 61 on the ring-shaped sealing seat 6, and a second position in which the outer holes 62 on the following sleeve 45 are completely blocked from the inner holes 61 on the ring-shaped sealing seat 6, and the check valve 46 is arranged on the corresponding outer holes 62. When the electromagnetic driving mechanism works normally, the emergency mechanism 43 does not work, namely the emergency driving disc 44 is positioned at the second position, the outer hole 62 on the follow-up sleeve 45 is completely blocked with the inner hole 61 on the annular sealing seat 6, in the production process, when the electromagnetic valve is closed and the electromagnetic driving mechanism fails, if the electromagnetic driving mechanism needs to continue to work in a short time, the emergency mechanism 43 is started, the emergency driving disc 44 rotates to the first position, the emergency driving disc 44 drives the follow-up sleeve 45 to rotate through the magnetic attraction effect, the outer hole 62 on the follow-up sleeve 45 is promoted to be communicated with the inner hole 61 on the annular sealing seat 6, when the medium pressure in the inlet flow passage 4 is greater than the opening pressure set by the check valve 46 on the outer hole 62 on the follow-up sleeve 45, the check valve 46 is opened, the inlet flow passage 4 and the outlet flow passage 5 are communicated, and the production line can work in an emergency way.
As shown in fig. 5, the check valve 46 includes a sleeve 64, a support disc 65, a valve clack 66 and a pre-tightening spring 67, the sleeve 64 is in threaded connection with the outer end of the corresponding outer hole 62, the outer end of the sleeve 64 is in threaded connection with a locking nut 68, the locking nut 68 abuts against the outer wall of the annular sealing seat 6, the support disc 65 is in threaded connection with the sleeve 64, a plurality of second through holes 69 are distributed on the support disc 65 in a circumferential array, a guide hole 70 with a square cross section is arranged at the center of the support disc 65, the valve clack 66 is arranged in the sleeve 64, a guide rod 71 with a square cross section extending along the axial direction is arranged on the valve clack 66, the guide rod 71 penetrates through the guide hole 70, a sealing flange 72 extending towards the inner circumference is arranged at the inlet of the outer end of the sleeve 64, one end of the pre-tightening spring 67 abuts against the support disc 65, the other end of the pre-tightening spring 67 abuts against the valve clack 66, so that the valve clack 66 is abutted against the sealing flange 72, and a first six-shaped groove 73 is arranged at the outer end of the valve clack 66. The check valve 46 is simple and reliable in structure and quite convenient to assemble, the opening pressure of the check valve 46 is set to be adjustable, namely, the valve clack 66 can be driven to rotate by rotating the valve clack 66 through inserting a hexagonal wrench into the first hexagonal groove 73 of the valve clack 66, the support disc 65 is driven to axially displace, the compression amount of the pre-tightening spring 67 is changed, the pre-tightening force applied to the valve clack 66 by the pre-tightening spring 67 is further changed, and the adjustment of the opening pressure of the check valve 46 is realized.
As shown in fig. 4 and 6, a positioning groove 74 is formed in the inner wall of the valve body 1, the bottom of the annular sealing seat 6 is embedded in the positioning groove 74, a sealing gasket 75 is clamped between the bottom end of the annular sealing seat 6 and the inner end surface of the positioning groove 74, a lock hole 76 communicated with the inlet flow passage 4 is formed in one side of the positioning groove 74, an L-shaped locking groove 77 communicated with the upper end of the positioning groove 74 is formed in the other side of the positioning groove 74, a locking assembly 78 and a fixed locking piece 79 are arranged on the outer side of the annular sealing seat 6, the locking assembly 78 comprises a movable locking piece 80, a locking spring 81 and a pressing cover 82, a first side hole 83 is formed on the outer side of the annular sealing seat 6, the pressing cover 82 is mounted on the outer end of the first side hole 83, the movable locking piece 80 penetrates through the pressing cover 82, a limit limiting flange 84 which is limited by the pressing cover 82 in a stroke mode is formed in the inner end of the movable locking piece 80, the locking spring 81 is arranged in the first side hole 83 and is used for applying an outward spring force to the movable locking piece 80, a second side hole 80 is further arranged on the outer side of the annular sealing seat 6, and the second side is further provided with a side hole 85, when the second side of the locking piece 85 is connected to the second side hole 85 and extends into the outer side of the positioning groove 80, and is mounted on the bottom of the annular sealing seat 80, and the second side hole is connected to the movable locking piece 79, and the second side hole is fixed in the positioning groove and the sealing groove 79. The detachable design of the annular sealing seat 6 greatly facilitates the disassembly and assembly operation of the emergency mechanism 43, namely, the annular sealing seat 6 can be integrally taken out during assembly, and then the follow-up sleeve 45 and the check valve 46 are arranged on the annular sealing seat 6, so that the disassembly operation is the same.
As shown in fig. 4 and fig. 6, a fan-shaped groove 86 is formed in the inner wall of the valve body 1 corresponding to the inner end of the shaft hole 49, a travel protruding portion 87 is formed in the periphery of the emergency operating rod 48, when the emergency operating rod 48 rotates, the travel protruding portion 87 rotates in the fan-shaped groove 86, when the travel protruding portion 87 abuts against one end of the fan-shaped groove 86, the emergency driving disc 44 is located at a first position, when the travel protruding portion 87 abuts against the other end of the fan-shaped groove 86, the emergency driving disc 44 is located at a second position, a position corresponding to the outer end of the shaft hole 49 on the outer side of the valve body 1 is provided with a yielding groove 88, a limit nut 89 is connected to the outer end of the emergency operating rod 48 in a threaded mode, a gasket 90 is clamped between the limit nut 89 and the inner end of the yielding groove 88, the outer end of the emergency operating rod 48, the limit nut 89 and the gasket 90 are all arranged in the yielding groove 88, and the outer end of the emergency operating rod 48 is provided with a second hexagonal groove 91. The design can axially limit the emergency operating rod 48, and simultaneously has an angle limiting function, so that a user can accurately adjust the emergency driving disc 44 to the first position or the second position.

Claims (9)

1.一种使用寿命更长的电磁阀，包括阀体(1)、密封组件(2)以及电磁驱动组件(3)，所述阀体(1)内设有进口流道(4)和出口流道(5)，所述阀体(1)内对应进口流道(4)和出口流道(5)之间的位置设有环形密封座(6)，所述阀体(1)上端开口处设有端盖(7)，所述电磁驱动组件(3)安装于端盖(7)上端用于控制密封组件(2)与环形密封座(6)上端相抵或远离环形密封座(6)，来实现进口流道(4)和出口流道(5)的导通或阻断；其特征在于：所述密封组件(2)包括挡水盘(8)和膜片(9)，所述膜片(9)安装在挡水盘(8)上，所述膜片(9)包括膜片主体(10)以及设置于膜片主体(10)外边缘的弹性部(11)，所述弹性部(11)包括呈一体式结构的弹性内环(12)、弹性外环(13)以及连接凸缘(14)，所述弹性内环(12)呈上大下小的喇叭口结构，挡水盘(8)连接于弹性内环(12)的内侧，所述弹性内环(12)的下端与膜片主体(10)的外缘相连，所述弹性内环(12)的上端与弹性外环(13)的上端相连，所述连接凸缘(14)设置于弹性外环(13)的下端用于与阀体(1)内壁相连接；还包括有应急机构(43)，所述应急机构(43)包括应急驱动盘(44)、随动套(45)以及多个止回阀(46)，所述应急驱动盘(44)可转动地设置于环形密封座(6)内侧，所述应急驱动盘(44)上呈圆周阵列分布有多个第一过孔(47)，所述应急驱动盘(44)的中部设有应急操作杆(48)，所述阀体(1)底部开设有轴孔(49)，所述应急操作杆(48)贯穿所述轴孔(49)伸至阀体(1)外部，并且所述应急操作杆(48)外周设置有用于与所述轴孔(49)内壁构成密封配合的第一密封圈(50)，所述环形密封座(6)外周设有定位台阶(51)，所述随动套(45)转动设置于所述环形密封座(6)外周，并且所述环形密封座(6)外周还插接有用于将随动套(45)限位在所述定位台阶(51)上的插销(52)；1. A solenoid valve with a longer service life, comprising a valve body (1), a sealing assembly (2) and an electromagnetic drive assembly (3), wherein the valve body (1) is provided with an inlet flow channel (4) and an outlet flow channel (5), wherein an annular sealing seat (6) is provided in the valve body (1) at a position corresponding to between the inlet flow channel (4) and the outlet flow channel (5), wherein an end cover (7) is provided at the upper opening of the valve body (1), and the electromagnetic drive assembly (3) is mounted on the upper end of the end cover (7) to control the sealing assembly (2) to abut against or move away from the upper end of the annular sealing seat (6) to achieve the inlet flow channel (4) and the outlet flow channel (5). The invention is characterized in that: the sealing assembly (2) comprises a water retaining plate (8) and a diaphragm (9), the diaphragm (9) being mounted on the water retaining plate (8), the diaphragm (9) comprising a diaphragm body (10) and an elastic portion (11) arranged on the outer edge of the diaphragm body (10), the elastic portion (11) comprising an elastic inner ring (12) in an integrated structure, an elastic outer ring (13) and a connecting flange (14), the elastic inner ring (12) being a trumpet-shaped structure with a larger upper portion and a smaller lower portion, the water retaining plate (8) being connected to the inner side of the elastic inner ring (12), the lower end of the elastic inner ring (12) being in contact with the diaphragm body (10), and the lower end of the elastic inner ring (12) being in contact with the diaphragm body (10). ), the upper end of the elastic inner ring (12) is connected to the upper end of the elastic outer ring (13), the connecting flange (14) is arranged at the lower end of the elastic outer ring (13) for connecting to the inner wall of the valve body (1); and also includes an emergency mechanism (43), the emergency mechanism (43) includes an emergency drive disc (44), a follower sleeve (45) and a plurality of check valves (46), the emergency drive disc (44) is rotatably arranged on the inner side of the annular sealing seat (6), the emergency drive disc (44) is provided with a plurality of first through holes (47) distributed in a circumferential array, and the middle part of the emergency drive disc (44) is provided with an emergency An operating rod (48), an axial hole (49) is formed at the bottom of the valve body (1), the emergency operating rod (48) penetrates the axial hole (49) and extends to the outside of the valve body (1), and a first sealing ring (50) is provided on the outer periphery of the emergency operating rod (48) for forming a sealing match with the inner wall of the axial hole (49), a positioning step (51) is provided on the outer periphery of the annular sealing seat (6), the follower sleeve (45) is rotatably arranged on the outer periphery of the annular sealing seat (6), and a latch (52) for limiting the follower sleeve (45) on the positioning step (51) is also inserted on the outer periphery of the annular sealing seat (6); 所述应急驱动盘(44)外周设置有第一环形槽(53)，所述第一环形槽(53)内圆面设置有多个第一安装槽(54)，每个第一安装槽(54)中嵌设有第一磁体(55)，所述第一环形槽(53)上套设有第一橡胶环(56)，所述第一橡胶环(56)将所述第一磁体(55)限制在对应的第一安装槽(54)内，所述随动套(45)内周设有第二环形槽(57)，所述第二环形槽(57)内圆面设置有多个与所述第一安装槽(54)相对应的第二安装槽(58)，每个第二安装槽(58)中嵌设有第二磁体(59)，所述第二环形槽(57)上套设有第二橡胶环(60)，所述第二橡胶环(60)将所述第二磁体(59)限制在对应的第二安装槽(58)内，所述第一磁体(55)和对应的第二磁体(59)呈磁极互相吸引设置；The emergency drive disc (44) is provided with a first annular groove (53) on its outer periphery, a plurality of first mounting grooves (54) are provided on its inner circumference, a first magnet (55) is embedded in each first mounting groove (54), a first rubber ring (56) is sleeved on the first annular groove (53), the first rubber ring (56) restricts the first magnet (55) in the corresponding first mounting groove (54), a second annular groove (57) is provided on its inner periphery, a plurality of second mounting grooves (58) corresponding to the first mounting groove (54) are provided on the inner circumference of the follower sleeve (45), a second annular groove (57) is provided with a plurality of second mounting grooves (58) corresponding to the first mounting groove (54), a second magnet (59) is embedded in each second mounting groove (58), a second rubber ring (60) is sleeved on the second annular groove (57), the second rubber ring (60) restricts the second magnet (59) in the corresponding second mounting groove (58), the first magnet (55) and the corresponding second magnet (59) are arranged to attract each other with their magnetic poles; 所述环形密封座(6)侧部呈圆周阵列分布有多个内孔(61)，所述随动套(45)上设置有多个与所述内孔(61)相对应的外孔(62)，并且所述环形密封座(6)外侧对应内孔(61)的上下方位置分别设有一个用于与随动套(45)内壁构成密封配合的第二密封圈(63)，所述应急驱动盘(44)通过磁吸作用带动随动套(45)转动时，具有随动套(45)上的外孔(62)与环形密封座(6)上的内孔(61)相导通的第一位置，以及随动套(45)上的外孔(62)与环形密封座(6)上的内孔(61)完全阻断的第二位置，所述止回阀(46)安装于对应的外孔(62)上。The annular sealing seat (6) has a plurality of inner holes (61) distributed in a circumferential array on the side thereof, the follower sleeve (45) is provided with a plurality of outer holes (62) corresponding to the inner holes (61), and a second sealing ring (63) for forming a sealing fit with the inner wall of the follower sleeve (45) is respectively provided at upper and lower positions of the outer side of the annular sealing seat (6) corresponding to the inner hole (61), and when the emergency drive disc (44) drives the follower sleeve (45) to rotate by magnetic attraction, there is a first position in which the outer hole (62) on the follower sleeve (45) is in communication with the inner hole (61) on the annular sealing seat (6), and a second position in which the outer hole (62) on the follower sleeve (45) and the inner hole (61) on the annular sealing seat (6) are completely blocked, and the check valve (46) is installed on the corresponding outer hole (62). 2.根据权利要求1所述的一种使用寿命更长的电磁阀，其特征在于：所述电磁驱动组件(3)包括线圈骨架(15)、电磁线圈(16)、内套(17)以及阀芯(18)，所述线圈骨架(15)安装于端盖(7)上，所述线圈骨架(15)上设有呈环形设置的塑封体(19)，所述电磁线圈(16)设置于塑封体(19)内，所述内套(17)沿轴向贯穿线圈骨架(15)的中心，所述阀芯(18)可沿轴向活动地设置在内套(17)内用于与密封组件(2)相配合，所述内套(17)内还设有用于对阀芯(18)施加轴向作用力的复位弹簧(20)，所述内套(17)内端设有压紧部(21)，所述阀体(1)内壁上设有连接槽(22)，所述端盖(7)安装于阀体(1)上时，端盖(7)内端抵紧于内套(17)的压紧部(21)上端，使得内套(17)将膜片(9)上的连接凸缘(14)压紧在所述连接槽(22)中。2. A solenoid valve with a longer service life according to claim 1, characterized in that: the electromagnetic drive assembly (3) comprises a coil skeleton (15), an electromagnetic coil (16), an inner sleeve (17) and a valve core (18), the coil skeleton (15) is installed on the end cover (7), a plastic sealing body (19) arranged in an annular shape is provided on the coil skeleton (15), the electromagnetic coil (16) is arranged in the plastic sealing body (19), the inner sleeve (17) axially penetrates the center of the coil skeleton (15), and the valve core (18) can move in the axial direction The valve body (1) is provided with a sealing member (2) and a return spring (20) for applying an axial force to the valve core (18). The inner end of the inner sleeve (17) is provided with a pressing portion (21). The inner wall of the valve body (1) is provided with a connecting groove (22). When the end cover (7) is mounted on the valve body (1), the inner end of the end cover (7) is pressed against the upper end of the pressing portion (21) of the inner sleeve (17), so that the inner sleeve (17) presses the connecting flange (14) on the diaphragm (9) into the connecting groove (22). 3.根据权利要求2所述的一种使用寿命更长的电磁阀，其特征在于：所述弹性内环(12)的内侧设置有环形卡接部(23)，所述环形卡接部(23)的截面为锥形或矩形或圆形形状，所述挡水盘(8)外周设有与所述环形卡接部(23)相契合的环形卡槽(24)；所述膜片主体(10)的中部设有中孔(25)，所述挡水盘(8)上设有连接杆(26)，所述连接杆(26)贯穿所述中孔(25)，并且所述连接杆(26)外周设有抵紧于所述膜片主体(10)底端的限位部(27)。3. A solenoid valve with a longer service life according to claim 2, characterized in that: an annular clamping portion (23) is provided on the inner side of the elastic inner ring (12), and the cross-section of the annular clamping portion (23) is conical, rectangular or circular, and the outer periphery of the water retaining plate (8) is provided with an annular clamping groove (24) that matches the annular clamping portion (23); a middle hole (25) is provided in the middle of the diaphragm body (10), and a connecting rod (26) is provided on the water retaining plate (8), and the connecting rod (26) passes through the middle hole (25), and the outer periphery of the connecting rod (26) is provided with a limiting portion (27) that is tightly pressed against the bottom end of the diaphragm body (10). 4.根据权利要求3所述的一种使用寿命更长的电磁阀，其特征在于：所述限位部(27)外周设有用于安装密封圈的密封槽(28)，当电磁驱动组件(3)将密封组件(2)压紧在环形密封座(6)上时，所述限位部(27)外周与所述环形密封座(6)的内壁相贴合，所述膜片主体(10)的上端还设有多个呈同心设置并与所述挡水盘(8)下端相抵紧的密封凸筋(29)。4. A solenoid valve with a longer service life according to claim 3, characterized in that: a sealing groove (28) for installing a sealing ring is provided on the outer periphery of the limiting portion (27); when the electromagnetic drive component (3) presses the sealing component (2) onto the annular sealing seat (6), the outer periphery of the limiting portion (27) fits against the inner wall of the annular sealing seat (6); and the upper end of the diaphragm body (10) is also provided with a plurality of concentrically arranged sealing ribs (29) that are tightly pressed against the lower end of the water retaining plate (8). 5.根据权利要求4所述的一种使用寿命更长的电磁阀，其特征在于：所述膜片主体(10)上端的外边缘处设有第一环形内凹部(30)，所述挡水盘(8)下端的外边缘处设有第二环形内凹部(31)，所述第一环形内凹部(30)和第二环形内凹部(31)组合形成一个第一腔室(32)，所述阀体(1)内对应密封组件(2)上方设有第二腔室(33)，所述膜片主体(10)上呈圆周阵列分别有多个用于将进口流道(4)与第一腔室(32)相连通的第一通孔(34)，所述挡水盘(8)上设有用于将第一腔室(32)与第二腔室(33)相连通的第二通孔(35)，并且所述挡水盘(8)位于所述阀芯(18)正下方的位置设有用于连通第二腔室(33)与出口流道(5)的第三通孔(36)。5. A solenoid valve with a longer service life according to claim 4, characterized in that: a first annular inner recess (30) is provided at the outer edge of the upper end of the diaphragm body (10), a second annular inner recess (31) is provided at the outer edge of the lower end of the water retaining plate (8), the first annular inner recess (30) and the second annular inner recess (31) are combined to form a first chamber (32), a second chamber (33) is provided above the corresponding sealing component (2) in the valve body (1), the diaphragm body (10) is provided with a plurality of first through holes (34) in a circular array for connecting the inlet flow channel (4) with the first chamber (32), the water retaining plate (8) is provided with a second through hole (35) for connecting the first chamber (32) with the second chamber (33), and the water retaining plate (8) is provided with a third through hole (36) for connecting the second chamber (33) with the outlet flow channel (5) at a position directly below the valve core (18). 6.根据权利要求1所述的一种使用寿命更长的电磁阀，其特征在于：所述进口流道(4)内设置有滤网(37)，所述滤网(37)包括环形基底(38)、设置于环形基底(38)中部的半球形引导部(39)以及设置于环形基底(38)外周的环形支撑部(40)，所述进口流道(4)内设有支撑台阶(41)，所述环形基底(38)抵接于支撑台阶(41)上，所述半球形引导部(39)朝向远离出口流道(5)方向凸起，所述环形支撑部(40)朝向远离出口流道(5)方向延伸，并且所述环形支撑部(40)的外圆面与进口流道(4)的内圆面紧密贴合，所述环形基底(38)、半球形引导部(39)以及环形支撑部(40)三者之间形成一个环形储料槽(42)。6. A solenoid valve with a longer service life according to claim 1, characterized in that: a filter screen (37) is arranged in the inlet flow channel (4), the filter screen (37) comprises an annular base (38), a hemispherical guide portion (39) arranged in the middle of the annular base (38) and an annular support portion (40) arranged on the outer periphery of the annular base (38), a support step (41) is arranged in the inlet flow channel (4), the annular base (38) abuts against the support step (41), the hemispherical guide portion (39) protrudes in a direction away from the outlet flow channel (5), the annular support portion (40) extends in a direction away from the outlet flow channel (5), and the outer circular surface of the annular support portion (40) is tightly fitted with the inner circular surface of the inlet flow channel (4), and an annular material storage groove (42) is formed between the annular base (38), the hemispherical guide portion (39) and the annular support portion (40). 7.根据权利要求1所述的一种使用寿命更长的电磁阀，其特征在于：所述止回阀(46)包括套筒(64)、支撑盘(65)、阀瓣(66)以及预紧弹簧(67)，所述套筒(64)螺纹连接于对应外孔(62)的外端，并且所述套筒(64)外端螺纹连接有锁紧螺母(68)，所述锁紧螺母(68)与环形密封座(6)的外壁相抵紧，所述支撑盘(65)螺纹连接套筒(64)内，所述支撑盘(65)上呈圆周阵列分布有多个第二过孔(69)，所述支撑盘(65)的中心处设有截面呈方形的导孔(70)，所述阀瓣(66)设置于套筒(64)内，所述阀瓣(66)上设有沿轴向延伸且截面呈方形的导杆(71)，所述导杆(71)贯穿所述导孔(70)，所述套筒(64)外端的进口处设有向内周延伸的密封凸缘(72)，所述预紧弹簧(67)套设在导杆(71)外周，并且预紧弹簧(67)的一端与支撑盘(65)相抵，预紧弹簧(67)的另一端与阀瓣(66)相抵，使得阀瓣(66)被抵紧在所述密封凸缘(72)上，所述阀瓣(66)的外端还设有第一六角槽(73)。7. A solenoid valve with a longer service life according to claim 1, characterized in that: the check valve (46) comprises a sleeve (64), a support plate (65), a valve disc (66) and a preload spring (67), the sleeve (64) is threadedly connected to the outer end of the corresponding outer hole (62), and the outer end of the sleeve (64) is threadedly connected to a locking nut (68), the locking nut (68) is tightly abutted against the outer wall of the annular sealing seat (6), the support plate (65) is threadedly connected to the sleeve (64), a plurality of second through holes (69) are distributed in a circular array on the support plate (65), and a square cross-section is provided at the center of the support plate (65). The valve flap (66) is arranged in the sleeve (64), and the valve flap (66) is provided with a guide rod (71) extending in the axial direction and having a square cross-section. The guide rod (71) passes through the guide hole (70). The inlet of the outer end of the sleeve (64) is provided with a sealing flange (72) extending toward the inner circumference. The preload spring (67) is sleeved on the outer circumference of the guide rod (71), and one end of the preload spring (67) is against the support plate (65), and the other end of the preload spring (67) is against the valve flap (66), so that the valve flap (66) is pressed against the sealing flange (72). The outer end of the valve flap (66) is also provided with a first hexagonal groove (73). 8.根据权利要求1所述的一种使用寿命更长的电磁阀，其特征在于：所述阀体(1)内壁上开设有定位槽(74)，所述环形密封座(6)的底部嵌设在所述定位槽(74)中，且环形密封座(6)的底端与定位槽(74)的内端面之间夹设有密封垫(75)，所述定位槽(74)的一侧开设有与进口流道(4)相连通的锁孔(76)，所述定位槽(74)的另一侧开设有与定位槽(74)上端相连通的L形锁槽(77)，所述环形密封座(6)外侧设有锁定组件(78)和固定锁块(79)，所述锁定组件(78)包括活动锁块(80)、锁定弹簧(81)以及压盖(82)，所述环形密封座(6)的外侧设有第一侧孔(83)，所述压盖(82)安装于第一侧孔(83)外端，所述活动锁块(80)贯穿所述压盖(82)，并且活动锁块(80)的内端设有与压盖(82)构成行程限位的限位凸边(84)，所述锁定弹簧(81)设置于第一侧孔(83)内用于对活动锁块(80)施加向外的弹簧力；所述环形密封座(6)的外侧还设有第二侧孔(85)，所述固定锁块(79)的一端螺纹连接于第二侧孔(85)上；当环形密封座(6)底部安装在定位槽(74)中并使固定锁块(79)滑动至L形锁槽(77)最内端时，所述活动锁块(80)在锁定弹簧(81)的推动下向外运动并伸入到所述锁孔(76)内。8. A solenoid valve with a longer service life according to claim 1, characterized in that: a positioning groove (74) is provided on the inner wall of the valve body (1), the bottom of the annular sealing seat (6) is embedded in the positioning groove (74), and a sealing gasket (75) is sandwiched between the bottom end of the annular sealing seat (6) and the inner end surface of the positioning groove (74), a locking hole (76) connected to the inlet flow channel (4) is provided on one side of the positioning groove (74), and an L-shaped locking groove (77) connected to the upper end of the positioning groove (74) is provided on the other side of the positioning groove (74), a locking assembly (78) and a fixed locking block (79) are provided on the outer side of the annular sealing seat (6), the locking assembly (78) includes a movable locking block (80), a locking spring (81) and a pressure cover (82), and the outer side of the annular sealing seat (6) is provided A first side hole (83), the pressure cover (82) is installed at the outer end of the first side hole (83), the movable locking block (80) passes through the pressure cover (82), and the inner end of the movable locking block (80) is provided with a limiting convex edge (84) that forms a travel limit with the pressure cover (82), and the locking spring (81) is arranged in the first side hole (83) to apply an outward spring force to the movable locking block (80); a second side hole (85) is also provided on the outer side of the annular sealing seat (6), and one end of the fixed locking block (79) is threadedly connected to the second side hole (85); when the bottom of the annular sealing seat (6) is installed in the positioning groove (74) and the fixed locking block (79) slides to the innermost end of the L-shaped locking groove (77), the movable locking block (80) moves outward under the push of the locking spring (81) and extends into the locking hole (76). 9.根据权利要求1所述的一种使用寿命更长的电磁阀，其特征在于：所述阀体(1)内壁对应轴孔(49)内端的位置设有扇形槽(86)，所述应急操作杆(48)外周设有行程凸部(87)，所述应急操作杆(48)转动时，所述行程凸部(87)在扇形槽(86)中转动，并且所述行程凸部(87)与扇形槽(86)一端相抵时，应急驱动盘(44)位于第一位置，所述行程凸部(87)与扇形槽(86)的另一端相抵时，应急驱动盘(44)位于第二位置；所述阀体(1)外侧对应轴孔(49)外端的位置设有让位槽(88)，所述应急操作杆(48)的外端螺纹连接有限位螺母(89)，所述限位螺母(89)与让位槽(88)内端之间夹设有垫片(90)，所述应急操作杆(48)外端、限位螺母(89)以及垫片(90)均设置于让位槽(88)内，并且所述应急操作杆(48)外端设有第二六角槽(91)。9. A solenoid valve with a longer service life according to claim 1, characterized in that: a fan-shaped groove (86) is provided at a position of the inner wall of the valve body (1) corresponding to the inner end of the shaft hole (49), and a stroke convex portion (87) is provided on the outer periphery of the emergency operating lever (48), and when the emergency operating lever (48) rotates, the stroke convex portion (87) rotates in the fan-shaped groove (86), and when the stroke convex portion (87) abuts against one end of the fan-shaped groove (86), the emergency drive disc (44) is located in the first position, and the stroke convex portion (87) and the fan-shaped groove (86) are in contact with each other. When the other ends abut against each other, the emergency drive disc (44) is located in the second position; a clearance groove (88) is provided at a position on the outer side of the valve body (1) corresponding to the outer end of the shaft hole (49); the outer end of the emergency operating rod (48) is threadedly connected to a limit nut (89); a gasket (90) is sandwiched between the limit nut (89) and the inner end of the clearance groove (88); the outer end of the emergency operating rod (48), the limit nut (89) and the gasket (90) are all arranged in the clearance groove (88); and the outer end of the emergency operating rod (48) is provided with a second hexagonal groove (91).
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CN217153083U (en) * 2021-11-27 2022-08-09 宁波佳音机电科技股份有限公司 Electromagnetic valve

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