CN2364296Y

CN2364296Y - Low-voltage DC electromagnetic valve

Info

Publication number: CN2364296Y
Application number: CN 99233062
Authority: CN
Inventors: 万江
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-01
Filing date: 1999-04-01
Publication date: 2000-02-16
Anticipated expiration: 2009-04-01

Abstract

The utility model relates to a low-voltage DC electromagnetic valve comprising a valve body, an isolation device, an electromagnetic movable valve core and a fixed device. The lower surface of a valve base in the valve body is divide into a water inlet cavity, a water outlet cavity and a communication cavity; the upper surface is provided with the isolation device; the up and down movement of the isolation device under the action of magnetic force of a permanent magnet body an and a coil iron hood in the electromagnetic movable valve core opens or closes the valve. The utility model has the advantages of novel and simple structure, small size, no abrasion components, easy maintenance, long service life and energy saving; the utility model can be controlled by dry batteries without electricity; the utility model is suitable for various liquid or gas pipelines which are operated by hand control, or remote control, or computer control.

Description

The low voltage and direct current magnet valve

The utility model relates to a kind of low voltage and direct current magnet valve, metal conduit valve type.

Existing solenoid valve, structure are complicated, mostly are alternating electromagnetic series, and must maintenance electricity be often arranged, and valve is easy to wear and tear, leaks, maintenance difficult.

It is a kind of simple in structure that the purpose of this utility model is to provide, and is easy to safeguard, adopts the low voltage and direct current operation, no matter have electricity, no electric valve all can keep original state, energy saving changes the field coil current direction, can open or close, can stop the solenoid valve of electricity consumption after the action.

The technical solution of the utility model: the low voltage and direct current magnet valve comprises valve body, partition apparatus, electromagnetism movable valve plug and fixing device, valve body has intake-outlet and valve seat, be separated into into water below the valve seat, two cavitys of water outlet, partition apparatus is set on valve seat, above-mentioned partition apparatus is made up of diaphragm and diaphragm, two holes are arranged on it, in order to balance on it, under pressure be convenient on it, move down, when pressing to valve seat, diaphragm and diaphragm will advance, upper plenum above the water outlet connected sum partition apparatus cuts off, seal not connected, be otherwise that valve closing is promptly opened valve, the electromagnetism movable valve plug is set on the partition apparatus, comprise field coil, the iron cover, shielding can and movable valve plug, the shielding can wall pressure is on the diaphragm periphery, form in the valve and the outer sealing of valve, movable valve plug is housed in the shielding can, the bag fruit has permanent magnet in the movable valve plug, permanent magnet is covered with suction to iron, therefore movable valve plug is not to be exactly to descend point most on, in the time of the most following, partition apparatus is pressed to valve seat, the hole that will be connected with the water outlet cavity is stifled tight simultaneously, change the current direction of field coil, just change the polarity of roller power, become by inhaling mutually and repel each other, can make on the movable valve plug, move down, and open, closing valve is fixed the electromagnetism movable valve plug and is linked to be an integral body with valve body with fixing device and promptly constitutes complete solenoid valve.

Accompanying drawing 1 is a low voltage and direct current magnet valve structural drawing;

1-water outlet, 2-valve body, 3-connection cavity, 4-center hole, 8-movable valve plug, 9-housing, 10 permanent magnets, 11 shielding cans, 12 are encouraged roller coil, 13 rubber body, 14 iron covers, 15 guard shields, 16-water outlet cavity, 17-upper plenum, 18-water inlet cavity, 19-water intake among the figure.

Below in conjunction with accompanying drawing the utility model is described in detail, and is provided embodiment:

Accompanying drawing is depicted as a kind of low voltage and direct current magnet valve, by valve body 2, partition apparatus ,-electromagnetism movable valve plug, fixing device constitute.

Valve body 2 is made by hard moulding material, there is entery and delivery port 19,1 at two ends, it and pipeline be connected with two kinds of conventional screw thread and flanges, also available adhesive, valve seat is arranged in the valve body, be separated into into water, water outlet and three cavitys of

connection

18,16 and 3 under it, be connected but intake and be communicated with two cavitys, valve seat makes and is Shape.

Partition apparatus is installed on the valve seat, it is made up of diaphragm 5 and diaphragm 6, and partition panel 5 is made into a plate of picture by hard moulding material

Have one to protrude the center hole 7 of upper and lower plate face and intercommunicating pore 4, two Kong Jun that protrude lower face and penetrate diaphragm 6 and it is snapped in the hole body on the shape, it flat, the two is combined closely, diaphragm is become by the rubber membrane grave Shape, in the groove in the middle of diaphragm just in time embeds, the outer wall of shielding can 11 is pressed in the little groove of periphery, intercommunicating pore is connected with the connection cavity, center hole is communicated with water outlet cavity chamber, the plate of diaphragm turnup connects, just in time push down valve seat and vertical tube limit with diaphragm, with three cavitys 18 below the valve seat, 16,3 and the upper plenum above the partition apparatus 17 cut off, seal and throttle down, when diaphragm moves up, because diaphragm is soft and crooked surplus capacity is arranged, can make the diaphragm one section suitable distance that moves up make the diaphragm height of lifting off a seat, allow advancing under the valve seat, water outlet makes valve open with being communicated with the cavity connection.

The electromagnetism movable valve plug is installed on the partition apparatus, and it comprises field coil 12, iron cover 14, shielding can 11 and movable valve plug 8, and shielding can 11 is one

At the bottom of the shape at last empty tube, the outer wall of following big empty tube is pressed on the diaphragm 6, make cavity 17 and valve external sealed above the partition apparatus, field coil 12 and iron cover 14 are installed at its end, iron cover 14 all encases the field coil periphery, closely paste mutually with top iron cover at middle its end of little empty tube, its wall stretches in the big empty tube, can be smoothly when guaranteeing that movable valve plug moves down, press to the center hole 7 that protrudes upper plate surface on the diaphragm exactly and stop up tight, and the height of control partition apparatus rising, be provided with moving valve core 8 in the little empty tube, the housing 9 of movable valve plug 8 is made by hard moulding material, and inside is provided with a permanent magnet 10, below with center hole by an end that touches, be inlaid with rubber body 13, tight to guarantee sealing.For keeping the firm of electromagnetism movable valve plug, firm and solid and be connected as a single entity with valve body, that present embodiment adopts is guard shield l5, it covers whole electromagnetism movable valve plug, is connected with valve body with screw thread, also can connect with common flange, power line is introduced by guard shield, the parts that the hard moulding material that present embodiment adopted is made, also the material that can use magnetic force not attract can be selected for use according to different purposes as copper, aluminium, stainless steel etc.

Application principle: owing to be provided with permanent magnet 9 in the body of movable valve plug 8, nature is covered with magnetic attraction to coil iron, therefore movable valve plug 8 is not to be covered with attraction force with following iron and partition apparatus is pressed to valve seat to become closed condition, inhales exactly in the above to form open mode on the iron cover.Suppose that valve in off position, movable valve plug 8 is pressed on the partition apparatus center hole, when just beginning water flowing, water enters into water cavity 18, all anhydrous in water outlet cavity 16 and the upper plenum 17, pressure is little, though water can enter upper plenum through intercommunicating pore 4 from being communicated with cavity 3, but because of the hole little, the amount that water enters is few, hydraulic pressure can move up partition apparatus jack-up, after the water in the upper plenum 17 is full of soon, the pressure balance of upper plenum and water inlet cavity, the water outlet cavity pressure is smaller, on the partition apparatus, under pressure reduction appears, permanent magnet 10 in the movable valve plug 8 is near from following iron cover at this moment, under pressure reduction and magnetic force, partition apparatus is pressed to valve seat and throttle down, open valve, then only need pass to direct current, change the magnetic at iron cover two ends, permanent magnet is with iron cover magnetic force polar repulsion and inhale mutually under the double power effect, and movable valve plug 8 moves up and holds mutually with top iron cover, at this moment on the partition apparatus, all cavitys are communicated with down, be under the equipressure, the impulse force of water inlet moves up partition apparatus and opens valve, because permanent magnet is covered with suction to iron, therefore whether field coil switches on, movable valve plug is had no effect, have only the opposite direct current of input current direction could change the position of its movable valve plug, just change the state action that opens or closes and need not keep electric power afterwards.Because movable valve plug 8 strokes attraction forces short and 10 pairs of iron covers 14 of permanent magnet are less, therefore only need the low people to press the direct current of little electric current can start solenoid valve.

In sum, the utility model, novel structure, simple, little, in light weight, the no wear-out part of volume, no leakage phenomenon is easy to safeguard, even can avoid maintenance, long service life can be used for battery control, in servicely need not keep electric power, energy saving is applicable on the various liquid, gas pipeline of manual control, remote control and computer control and uses.

Claims

1, a kind of low voltage and direct current magnet valve comprises valve body 2, partition apparatus, electromagnetism movable valve plug, fixing device, it is characterized in that:

A, described valve body 2 have entery and delivery port 19,1 and valve seat, and being separated into into below the above-mentioned valve seat, water, water outlet and 18,16 2 cavitys of three cavitys of connection are connected;

B, described partition apparatus are made up of diaphragm 5 and diaphragm 6, are installed on the valve seat, and two holes are arranged on the partition apparatus, be communicated with water inlet, water outlet cavity respectively, when partition apparatus is pressed to valve seat three cavitys of water-in and water-out and upper plenum are cut off and sealing, except that have intercommunicating pore, not connected;

C, described electromagnetism movable valve plug, comprise field coil 12, iron cover 14, shielding can 11 and movable valve plug 8, shielding can 11 is pressed on the periphery of diaphragm 6, the shielding can 11 outer field coils 12 that outer iron clad cover 14 is housed, movable valve plug 8 is housed in the shielding can 11, and described movable valve plug 8 is enclosed with permanent magnet 10 by housing 9, and is when being moved to minimum point that center hole 7 is stifled tight; Partition apparatus is pressed to valve seat, and the hole that will link to each other with the water outlet cavity is stifled tight;

D, promising firm electromagnetism movable valve plug is set and makes it and valve body 2 fixing device that is connected as a single entity.

2, solenoid valve according to claim 1, feature be its valve seat make the height two planes be

Shape, the diaphragm 5 that is separated into water-in and water-out below the above-mentioned valve seat and is communicated with three cavity partition apparatus is picture plates Have a center hole 7 that protrudes upper and lower plate face and intercommunicating pore 4, two Kong Jun that protrude lower face to penetrate diaphragm 6 on the shape, it flat and it is snapped in the hole body, diaphragm 6 is pressed into by rubber membrane

Shape, diaphragm just in time embeds in the groove in the middle of the diaphragm 6.

3, solenoid valve according to claim 1 and 2 is characterized in that the end that the housing 9 of movable valve plug 8 contacts with center hole 7 is inlaid with rubber body 13, and shielding can 11 is

Shape;

4, solenoid valve according to claim 1, the fixing device that it is characterized in that the electromagnetism movable valve plug are guard shields 15, and it covers whole electromagnetism movable valve plug and compress, and are connected as a single entity with screw thread or flange and valve body 2.