CN201982779U

CN201982779U - Diaphragm component of pulse electromagnetic valve

Info

Publication number: CN201982779U
Application number: CN2011201063669U
Authority: CN
Inventors: 鲍伟军
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-12
Filing date: 2011-04-12
Publication date: 2011-09-21
Anticipated expiration: 2021-04-12

Abstract

The utility model discloses a diaphragm component of a pulse electromagnetic valve, which comprises a diaphragm gland bush, a diaphragm body and a rubber sleeve, wherein a vertically-penetrating pressure relief hole is formed on the diaphragm body, and the diaphragm body is in hermetic butt joint with a water cavity of the electromagnetic valve; the diaphragm body can be elastically and movably connected with the diaphragm gland bush by moving a water outlet on the electromagnetic valve upward for opening and moving the water outlet downward for closing; the rubber sleeve is detachably sheathed on the diaphragm body, and the upper end part of the rubber sleeve extends upward for integrally forming an O-shaped ring for sealing in the position corresponding to the pressure relief hole; and a pressure relief hole column on which the pressure relief hole is formed is arranged at the bottom of the diaphragm gland bush, and the pressure relief hole column penetrates the O-shaped ring to be inserted into the pressure relief hole on the diaphragm body. The diaphragm component of the pulse electromagnetic valve comprises a vertical through type pressure relief passage, the pressure relief effect is good, the structure is simple, and the processing is easy; and the rubber sleeve is detachably sheathed on the diaphragm body, not only the sliding sealing property is good and the friction force is small, but also the structure is simple, and the mounting is convenient.

Description

The diaphragm unit of impulse electromagnetic valve

Technical field

The utility model relates to a kind of assembly of impulse electromagnetic valve, especially relates to a kind of diaphragm unit of impulse electromagnetic valve.

Background technique

Solenoid valve is mainly used in the automatic control system that medium is a water, as sensing sanitary appliance, IC water meter etc.Solenoid valve mainly comprises from top to bottom valve head, valve gap and the valve body of assembling successively, is provided with diaphragm unit in this valve body.This valve body comprises water chamber and the water-inlet cavity that is communicated with the water source, and this diaphragm unit to control the critical component of small water flow, mainly is that this valve body is separated out a pressure regulating cavity again as pressure regulation, pressure release.In the most frequently used bypass type pressure relief, current in this pressure regulating cavity relief hole that the middle part is offered from this valve gap successively enter the back to the next door through this valve gap and this valve body on the pressure release passage of bypass type enter this water chamber again, between this water-inlet cavity and this pressure regulating cavity, produce pressure difference like this, this diaphragm unit rises under this action of pressure, this water-inlet cavity is communicated with this water chamber, thereby opens solenoid valve.

But the diaphragm unit of this solenoid valve exists following deficiency and defective: pressure release passage is the water channel of bypass type, and the pressure release effect is relatively poor, and the opening action of solenoid valve is insensitive; Offer pressure release passage on valve body, volume also can correspondingly increase.

The model utility content

In view of this, the purpose of this utility model is to provide a kind of diaphragm unit of impulse electromagnetic valve of straight-through pressure release, and is simple in structure, easy for installation.

In order to reach above-mentioned purpose, solution of the present utility model is:

A kind of diaphragm unit of impulse electromagnetic valve comprises diaphragm gland, diaphragm body and rubber sleeve, has the relief hole that runs through upper and lower surface on this diaphragm body, and the water cavity of this diaphragm body and solenoid valve is the sealing butt; This diaphragm body with can on remove and open and move down the mode of closing the water outlet on the solenoid valve and this diaphragm gland and be elasticity and flexibly connect, wherein: with the sheathed described rubber sleeve of the mode that can dismantle, the upper end portion of described rubber sleeve extends upward and to should the relief hole place one-body molded O type circle that has in order to sealing on the described diaphragm body; The bottom of described diaphragm gland is provided with the relief hole post, has in this relief hole post to connect the relief hole that described pressing diaphragm covers lower surface, and this relief hole post passes in the described relief hole that inserts behind this O type circle on the described rubber sleeve on the described diaphragm body.

Described diaphragm body comprises last disk, lower disc and the projection that connects successively up and down, and described relief hole runs through the upper and lower surface of disk on this, this lower disc and this projection; Should go up sheathed described rubber sleeve on the disk, the water cavity of this lower disc and solenoid valve is the sealing butt.

Fit mutually in the lower surface of described rubber sleeve and described surface of going up disk, the underpart of described rubber sleeve concaves and rolls over and the one-body molded and described suitable groove of disk of going up.

Diaphragm unit also comprises the band needle spring, and this band needle spring is set on the described relief hole post, and the last free end of this band needle spring and following free end correspondence are respectively replaced on the upper surface of the lower surface of described diaphragm gland and described lower disc.

Described pressing diaphragm covers and is provided with the pod apertures that runs through upper and lower surface.

Be with elastomer diaphragm on the described projection, the upper surface of this elastomer diaphragm and the lower surface of described lower disc fit; Have groove on the described projection, the end that this elastomer diaphragm is positioned at inner ring embeds this groove, and the end that this elastomer diaphragm is positioned at the outer ring extends upward inflection and constitutes annular groove, and the bottom of described diaphragm gland is provided with the ring-type bulge loop suitable with this annular groove.

After adopting said structure, the diaphragm unit of the utility model impulse electromagnetic valve has following beneficial effect:

One, in the relief hole on the relief hole post insertion diaphragm body of diaphragm gland bottom, each relief hole on diaphragm gland and the diaphragm body is connected, thereby forms the pressure release path of straight-through type up and down, and not only pressure release is effective, and simple in structure being easy to processed; On the diaphragm body with the sheathed rubber sleeve of the mode that can dismantle, simple in structure, easy for installation and good sealing effect; The upper end portion of rubber sleeve extends upward and one-body molded O type circle, and the relief hole post of diaphragm gland bottom passes in the relief hole that inserts behind the O type circle on the diaphragm body; When the diaphragm body drives rubber sleeve when the relief hole post slides up and down, because O type circle and relief hole post for linearity contacts, have reduced area of contact, the diaphragm body is easier to slide up and down;

Two, the underpart of rubber sleeve concaves and rolls over and one-body molded groove, and rubber sleeve can tightly superscribe disk under hydraulic action, and the lower surface of rubber sleeve and the surface formation of last disk are fitted tightly; When the diaphragm body drove rubber sleeve and slides up and down, rubber sleeve can be from the separation that comes off of diaphragm body.

Description of drawings

Fig. 1 is the schematic perspective view of impulse electromagnetic valve;

Fig. 2 is the sectional view of closed condition to the demonstration diaphragm unit for A-A among Fig. 1;

Fig. 3 be among Fig. 1 A-A to showing diaphragm unit sectional view in opened condition;

Fig. 4 is the schematic perspective view of looking up of valve cover;

Fig. 5 is the schematic perspective view of diaphragm unit;

Fig. 6 is the assembling schematic representation of diaphragm unit.

Among the figure:

Valve head 100 moving core assemblies 110

Pressure release mouth 120 relief holes 121

Diaphragm unit 200 diaphragm glands 210

Fixed hole 211 pod apertures 212

Relief hole 213 relief hole posts 214

Bulge loop 215 diaphragm bodies 220

Last disk 221 lower discs 222

Projection 223 grooves 224

Relief hole 225 equalizing orifices 226

Fin 227 rubber sleeves 230

O type circle 231 elastomer diaphragms 240

Band needle spring 250 valve bodies 300

Water-inlet cavity 301 water chambers 302

Pressure regulating cavity 303 water intakes 304

Water outlet 305 water shutoff mouths 306

Embodiment

In order further to explain the technical solution of the utility model, the utility model is elaborated below by specific embodiment.

Shown in Fig. 1-6, the diaphragm unit 200 of the utility model impulse electromagnetic valve comprises diaphragm gland 210, diaphragm body 220, rubber sleeve 230, elastomer diaphragm 240 and band needle spring 250.

Diaphragm gland 210 is square, and four bights are respectively equipped with fixed hole 211.The upper surface of diaphragm gland 210 is provided with groove, and the bump of this groove and coil rack 120 bottoms cooperatively interacts; The lower surface of diaphragm gland 210 is provided with ring-type bulge loop 215, in order to match with the valve body of solenoid valve.Diaphragm gland 210 is provided with pod apertures 212, in order to the current up and down in the water cavity of conducting solenoid valve.The bottom surface of diaphragm gland 210 is provided with relief hole post 214, has the relief hole 213 that connects diaphragm gland 210 upper and lower surfaces in the relief hole post 214, wears band needle spring 250 on the relief hole post 214.

Diaphragm body 220 comprises the projection 223 of last disk 221, lower disc 222 and the column of the sheet that connects successively up and down, and projection 223 has been provided with three fins 227 of guide functions.Have the relief hole 225 that runs through disk 221, lower disc 222 and projection 223 on the diaphragm body 220.

Rubber sleeve 230 closely is enclosed within on the disk 221 in the mode that can dismantle, and the upper end portion of rubber sleeve 230 extends upward the relief hole 225 places one-body molded O of the having type circle 231 on corresponding diaphragm body 220.Fit mutually in the surface of the lower surface of rubber sleeve 230 and last disk 221, the underpart of rubber sleeve 230 concave folding and the suitable groove of one-body molded and last disk 221, rubber sleeve 230 can tightly superscribe disk 221 like this, the lower surface of rubber sleeve 230 and the surface formation of last disk 221 are fitted tightly, further improve the sealability of diaphragm unit, and under the effect of hydraulic pressure, rubber sleeve 230 can be from diaphragm body 220 separation that comes off.

The elastomer diaphragm 240 of disk shape is set on the projection 223, have annular recess 224 on the projection 223, the end that elastomer diaphragm 240 is positioned at inner ring embeds groove 224, the lower surface of the upper surface of elastomer diaphragm 240 and lower disc 222 fits tightly, and elastomer diaphragm 240 closely is enclosed within on the lower disc 222 like this.The end that elastomer diaphragm 240 is positioned at the outer ring extends upward formation annular groove 241 after the crooked inflection, in order to suitable with the bulge loop 215 of diaphragm gland 210 bottoms.

When diaphragm gland 210 assembles with diaphragm body 220, the bulge loop 215 of diaphragm gland 210 bottoms embeds in the annular groove 241 of elastomer diaphragm 240, the relief hole post 214 of diaphragm gland 210 bottoms passes in the relief hole 225 that stretches into behind the O type circle 231 on the diaphragm body 220, band last free end of needle spring 250 and following free end elasticity respectively are connected on the upper surface of the lower surface of diaphragm gland 210 and lower disc 220, are with the pin of needle spring 250 to be located in the equalizing orifice 226.

Diaphragm gland 210 and diaphragm body 220 from top to bottom set gradually, and relief hole 213 and relief hole 225 are promptly formed the up and down pressure release path of straight-through type like this, and not only pressure release is effective, and simple in structurely are easy to processing, and the volume of solenoid valve is less.

Diaphragm unit 200 is arranged in the valve body 300, the inner chamber of valve body 300 is separated into water-inlet cavity 301 and the water chamber 302 that is positioned at diaphragm unit 200 belows, and the pressure regulating cavity 303 that is positioned at diaphragm unit 200 tops, pressure regulating cavity 303 communicates with water-inlet cavity 301 by equalizing orifice 226.Water-inlet cavity 301 has the water intake 304 that is communicated with the water source, water chamber 302 has water outlet 305, the upper opening of pressure regulating cavity 303 matches with diaphragm gland 210, and the bottom of pressure regulating cavity 303 is provided with water shutoff mouth 306, and water shutoff mouth 306 is communicated with water-inlet cavity 301 and water chamber 302 is logical.In addition, diaphragm unit 200 also cooperatively interacts with valve head 100 as the constituent elements of solenoid valve, is provided with moving core assembly 110 and pressure release mouth 120 in the valve head 100, has relief hole 121 on the pressure release mouth 120, moving core assembly 110 moves up and down, thereby opens or close the relief hole 121 on the pressure release mouth 120.

When removing the relief hole 121 that opens on the pressure release mouth 120 on the moving core assembly 110, flow out from the water outlets 307 of valve body 300 pod apertures 212, the relief hole 121 on the pressure release mouth 120, the relief hole 213 on the

diaphragm gland

210 and 225 backs of the relief hole on the diaphragm body 220 that the current in the pressure regulating cavity 303 are flowed through on the diaphragm gland 210 successively; Hydraulic pressure in the water-inlet cavity 301 is greater than the hydraulic pressure in the pressure regulating cavity 303, so under this action of pressure, diaphragm body 220, rubber sleeve 230 and elastomer diaphragm 240 upwards slide along the relief hole post 214 on the diaphragm gland 210, O type circle 231 on the rubber sleeve 230 contacts for linear with relief hole post 214, not only few, the easy slip of surface of contact, and good seal performance; Diaphragm unit 200 rises and opens water shutoff mouth 306, and big current flow out from water intake 304, water shutoff mouth 306 and the water outlet 305 of valve body 300 successively, and a part of current enter pressure regulating cavity 303 from equalizing orifice 226.

Otherwise, when moving iron core 131 moves down the relief hole 152 of closing on the pressure release mouth 150, hydraulic pressure in the pressure regulating cavity 303 increases, balance each other with the pressure in the water-inlet cavity 301, diaphragm unit 200 is under the effect of band needle spring 250, diaphragm body 220, rubber sleeve 230 and the elastomer diaphragm 240 relief hole post 214 on the diaphragm gland 210 is to lower slider, the diaphragm unit 200 sealing water shutoff mouth 306 that resets that descends like this, thus reach the purpose of the big current of blocking-up.This straight-through type pressure release mode of diaphragm unit 200 has advantage simple in structure, that pressure release passage is easy to make.

The foregoing description and accompanying drawing and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present utility model to its suitable variation or modification of doing.

Claims

1. the diaphragm unit of an impulse electromagnetic valve comprises diaphragm gland, diaphragm body and rubber sleeve, has the relief hole that runs through upper and lower surface on this diaphragm body, and the water cavity of this diaphragm body and solenoid valve is the sealing butt; This diaphragm body with can on remove and open and move down the mode of closing the water outlet on the solenoid valve and this diaphragm gland and be elasticity and flexibly connect, it is characterized in that: with the sheathed described rubber sleeve of the mode that can dismantle, the upper end portion of described rubber sleeve extends upward and to should the relief hole place one-body molded O type circle that has in order to sealing on the described diaphragm body; The bottom of described diaphragm gland is provided with the relief hole post, has in this relief hole post to connect the relief hole that described pressing diaphragm covers lower surface, and this relief hole post passes in the described relief hole that inserts behind this O type circle on the described rubber sleeve on the described diaphragm body.

2. the diaphragm unit of impulse electromagnetic valve as claimed in claim 1 is characterized in that: described diaphragm body comprises last disk, lower disc and the projection that connects successively up and down, and described relief hole runs through the upper and lower surface of disk on this, this lower disc and this projection; Should go up sheathed described rubber sleeve on the disk, the water cavity of this lower disc and solenoid valve is the sealing butt.

3. the diaphragm unit of impulse electromagnetic valve as claimed in claim 2 is characterized in that: fit mutually in the lower surface of described rubber sleeve and described surface of going up disk, the underpart of described rubber sleeve concave folding and one-body molded and the described upward suitable groove of disk.

4. the diaphragm unit of impulse electromagnetic valve as claimed in claim 2, it is characterized in that: diaphragm unit also comprises the band needle spring, this band needle spring is set on the described relief hole post, and the last free end of this band needle spring and following free end correspondence are respectively replaced on the upper surface of the lower surface of described diaphragm gland and described lower disc.

5. as the diaphragm unit of claim 1 or 4 described impulse electromagnetic valves, it is characterized in that: described pressing diaphragm covers and is provided with the pod apertures that runs through upper and lower surface.

6. the diaphragm unit of impulse electromagnetic valve as claimed in claim 2, it is characterized in that: be with elastomer diaphragm on the described projection, the upper surface of this elastomer diaphragm and the lower surface of described lower disc fit; Have groove on the described projection, the end that this elastomer diaphragm is positioned at inner ring embeds this groove, and the end that this elastomer diaphragm is positioned at the outer ring extends upward inflection and constitutes annular groove, and the bottom of described diaphragm gland is provided with the ring-type bulge loop suitable with this annular groove.