CN101907179B

CN101907179B - Highly corrosion-resistant diaphragm valve

Info

Publication number: CN101907179B
Application number: CN 201010220256
Authority: CN
Inventors: 颜宏
Original assignee: Xiamen Conjoin Electronics Technology Co ltd
Current assignee: Xiamen Conjoin Electronics Technology Co ltd
Priority date: 2010-05-14
Filing date: 2010-06-22
Publication date: 2013-01-02
Anticipated expiration: 2030-06-22
Also published as: CN201764004U; CN101907179A

Abstract

The invention discloses a highly corrosion-resistant diaphragm valve, which comprises a shell, a bobbin winding frame, a magnetizable valve core, an air nozzle, a rubber diaphragm, a base, a bottom plate, a spring, a back cover and a copper pin. The shell is covered on the bobbin winding frame wound with copper wires and is fixedly riveted on the bobbin winding frame; the bottom plate is arranged at the back end of the bobbin winding frame; the back cover is fixed at the back end of the bobbin winding frame; one end of the copper pin is connected with the bobbin winding frame while the other end extends out of the back cover and is connected with a power source; the magnetizable valve core, the spring and the base are arranged in a centre pipe of the bobbin winding frame in turn; the rubber diaphragm is fixed at the front end of the valve core, and the periphery of the rubber diaphragm is connected with the centre through an elastic arch ring; and the air nozzle is provided with a flange, a radial hole and an eccentric axial hole, and is fixed at the front end of the bobbin winding frame through the flange, a step hole matched with the periphery of the rubber diaphragm, and a centre hole and an eccentric hole matched with the centre of the rubber diaphragm are formed on the flange, and the step hole is communicated with the radial hole through the centre hole and communicated with the axial hole through the eccentric hole. The structure can achieve high sealing property and medium corrosion resistance.

Description

A kind of high corrosion-resisting diaphragm valve

Technical field

The present invention relates to a kind of high corrosion-resisting diaphragm valve, be applicable to the small household appliances such as automobile, medical apparatus, coffee machine.

Background technique

In the prior art, a kind of solenoid valve that is applicable to household electric appliance or auto parts machinery is arranged, as shown in Figure 1, mainly comprise shell 10, drum 20, spool 30, rubber plug cock 40, the base 50 with seal ring 51, spring 60, bonnet 70, rubber cushion 80, pad 90 and copper pin 100.Rubber plug cock 40 is fixed in the front end of spool 30.Spool 30, spring 60 and base 50 are assembled in the center tube of drum 20 successively.Pad 90 is installed in the front end of drum 20.Bonnet 70 and rubber cushion 80 are installed in the rear end of drum 20.Shell 10 covers on the drum 20 that is wound with copper cash and rivet clasp.Copper pin 100 is installed on the rubber cushion 80 and with copper cash and is connected.

During use, under the "on" position, not promoted by spring 60, spool 30 drives rubber plug cock 40 all the time forward, blocks the axial bore of drum 20, and solenoid valve is normally off; Under the "on" position, copper coil on drum 20 produces magnetic field, make spool 30 and base 50 magnetization, the effect that spool 30 and base 50 are inhaled because of Magnetic Phase, Compress Spring 60 is drawn close mutually, and spool 30 drives rubber plug cock 40 and moves backward, opens the axial bore of drum 20, the axial bore of drum 20 is communicated with radial hole, and solenoid valve is opening state; After the outage, spool 30 drives the axial bore that rubber plug cock 40 is blocked drum 20 again under spring 60 effects again, and solenoid valve is closed condition.

It is not difficult to find after careful observation, the outer surface of rubber plug cock 40 is the conical surface, and solenoid valve is that the conical surface by rubber plug cock 4 cooperates with the axial bore of drum 20 in good time, realize the Push And Release of solenoid valve, but radial hole is the unlatching shape all the time, such as Korrosionsmedium, very easily cause poorly sealed because of corrosion of component, even the solenoid valve inefficacy, so this solenoid valve sealing is poor, do not have medium corrosion resistance, really await improving.

Summary of the invention

The object of the present invention is to provide a kind of high corrosion-resisting diaphragm valve, to reach good sealing and medium corrosion resistance.

To achieve these goals, technological scheme of the present invention is as follows:

A kind of high corrosion-resisting diaphragm valve comprises shell, drum, magnetizable spool, valve, diaphragm of rubber, base, base plate, spring, bonnet and copper pin; Jacket is being wound with on the drum of copper cash and rivet clasp; Base plate is arranged on the rear end of drum; Bonnet is fixed on the rear end of drum; One end of copper pin connects drum and the other end stretches out with power supply from bonnet and is connected; Magnetizable spool, spring and base are successively set in the center tube of drum; Diaphragm of rubber is fixed on the front end of spool, and the periphery of diaphragm of rubber is connected with the center by the elasticity arch ring; Valve has flange, radial hole and eccentric axial bore, valve is fixed on the front end of drum by flange, form the step hole that cooperates with the diaphragm of rubber periphery, center hole and the eccentric opening that cooperates with the diaphragm of rubber center on the flange, step hole communicates with radial hole by center hole and communicates with axial bore by eccentric opening.

Be formed centrally jack-post in the above-mentioned spool; Be formed centrally in the diaphragm of rubber for the affixed axle sleeve of jack-post.

Be formed centrally in the above-mentioned diaphragm of rubber and can stretch into the plug that cooperates with center hole in the step hole.

Also form on the periphery of above-mentioned diaphragm of rubber and strengthen wall.

Also respectively overlap on above-mentioned radial hole and the eccentric axial bore air tap sleeve is arranged.

Above-mentioned base plate and bonnet can be one-body molded.

After adopting such scheme, after the present invention's assembling, the periphery of diaphragm of rubber cooperates with the step hole of valve all the time and is sealing state; During use, under the "on" position, not promoted by spring, spool drives diaphragm of rubber all the time forward, and the center of diaphragm of rubber is blocked the center hole of valve, closed radial hole, and valve is normally off; Under the "on" position, copper coil on drum produces magnetic field, make the magnetization of spool and base, the effect that spool and base are inhaled because of Magnetic Phase, Compress Spring is drawn close mutually, and spool drives the center back of diaphragm of rubber and moves, open the center hole of valve, the radial hole of valve is communicated through center hole, eccentric opening and axial bore, and valve is opening state, and the periphery of diaphragm of rubber still cooperates with the step hole of valve and is sealing state at this moment; After the outage, the center hole of valve is blocked at spool drives diaphragm of rubber under spring action center again again, and valve is closed condition again.

The present invention compared with prior art replaces the rubber plug cock by diaphragm of rubber, is sealed and matched by the periphery of diaphragm of rubber and the step hole of valve, can prevent effectively that medium from entering in the valve, better tightness, and have medium corrosion resistance.

The present invention will be further described below in conjunction with the drawings and specific embodiments.

Description of drawings

Fig. 1 is the structure sectional view of existing air valve;

Fig. 2 is three-dimensional exploded view of the present invention;

Fig. 3 is the structure sectional view of opening state of the present invention;

Fig. 4 is the structure sectional view of closed state of the present invention;

Fig. 5 is the structure sectional view of diaphragm of rubber of the present invention;

Fig. 6 is the structure sectional view of valve of the present invention;

Fig. 7 is the side view of valve of the present invention.

Label declaration

Shell 10 drums 20

Spool 30 rubber plug cocks 40

Base 50 seal rings 51

Spring 60 bonnets 70

Rubber cushion 80 pads 90

Copper pin 100

Shell 1 drum 2

Spool 3 jack-posts 31

Valve 4 flanges 41

Radial hole 42 axial bores 43

Step hole 44 center holes 45

Eccentric opening 46 diaphragm of rubber 5

Axle sleeve 51 arch rings 52

Plug 53 is strengthened wall 54

Base 6 base plates 7

Spring 8 bonnets 9

Copper pin 10 air tap sleeves 11

Embodiment

Extremely shown in Figure 4 such as Fig. 2, be preferred embodiment of the present invention.

A kind of high corrosion-resisting diaphragm valve that the present invention discloses comprises shell 1, drum 2, magnetizable spool 3, valve 4, diaphragm of rubber 5, base 6, base plate 7, spring 8, bonnet 9 and copper pin 10.

Wherein, shell 1 covers on the drum 2 that is wound with copper cash and rivet clasp.

Base plate 7 is arranged on the rear end of drum 2, and bonnet 9 is fixed on the rear end of drum 2.Base plate 7 and bonnet 9 can be one-body molded.

One end of copper pin 10 connects drum 2, and the other end stretches out with power supply from bonnet 9 and is connected.

Magnetizable spool 3, spring 8 and base 6 are successively set in the center tube of drum 2.The two ends of spring 8 are against respectively on spool 3 and the base 6.

Diaphragm of rubber 5 is fixed on the front end of spool 3, and for convenient fixing, as shown in Figure 5, this embodiment is formed centrally jack-post 31 in spool 3, is formed centrally in diaphragm of rubber 5 for the affixed axle sleeve 51 of jack-post 31.The periphery of diaphragm of rubber 5 is connected with the center by elasticity arch ring 52, makes diaphragm of rubber 5 have very large deformation space, makes the periphery of diaphragm of rubber 5 and center can be one in front and one in back state when stressed and reaches good sealing.

Valve 4 has flange 41, radial hole 42 and eccentric axial bore 43 as shown in Figure 6 and Figure 7.Valve 4 is fixed on the front end of drum 2 by flange 41.Form step hole 44, center hole 45 and eccentric opening 46 on the flange 41, step hole 44 communicates with radial hole 42 by center hole 45 and communicates with axial bore 43 by eccentric opening 46.Diaphragm of rubber 5 peripheries and step hole 44 are sealed and matched with regard to being all the time after assembling is finished, and can prevent that medium from entering in the valve.This embodiment also forms on the periphery of diaphragm of rubber 5 and strengthens wall 54, makes the periphery of diaphragm of rubber 5 can more effectively close step hole 44, more advantageously stops medium to enter in the valve.Diaphragm of rubber 5 centers are driven by spool 3 and cooperate with center hole 45, the state that valve is open or close in good time.This embodiment also forms at the center of diaphragm of rubber 5 can stretch into the plug 53 that cooperates with center hole 45 in the step hole 44, makes the center of diaphragm of rubber 5 can finish more accurately opening or closing of center hole 45.

In addition, this embodiment goes back each cover at the axial bore 43 of radial hole 42 and off-centre an air tap sleeve 11.

After the present invention's assembling, as shown in Figure 3 and Figure 4, the periphery of diaphragm of rubber 5 cooperates with the step hole 44 of valve 4 all the time and is sealing state, reaches media-resistant corrosion effect.

During use, be not under the "on" position as shown in Figure 3, promoted by spring 8, spool 3 drives diaphragm of rubber 5 all the time forward, the center of diaphragm of rubber 5 block valve 4 center hole 45, close radial hole 42, valve is normally off.

Under the "on" position as shown in Figure 4, copper coil on drum 2 produces magnetic field, make spool 3 and base 6 magnetization, the effect that spool 3 and base 6 are inhaled because of Magnetic Phase, Compress Spring 8 is drawn close mutually, the center back that spool 3 drives diaphragm of rubber 5 is moved, open the center hole 45 of valve 4, the radial hole 42 of valve 5 is communicated through center hole 45, eccentric opening 46 and axial bore 43, valve is opening state, but the periphery of diaphragm of rubber 5 still cooperates with the step hole 44 of valve 4 and is sealing state at this moment, reaches media-resistant corrosion effect;

Also as shown in Figure 3, the center hole 45 of valve 4 is blocked at the center of spool 3 drive diaphragm of rubber 5 under spring 8 effects again after cutting off the power supply again, and valve is closed condition again.

It below only is preferred embodiment of the present invention; be not limitation of the present invention, in the ken that those of ordinary skills possess, based on the design main points of this case; the many variations that its implementation form is made, but all should fall within the scope of protection of the present invention.

Claims

1. a high corrosion-resisting diaphragm valve is characterized in that: comprise shell, drum, magnetizable spool, valve, diaphragm of rubber, base, base plate, spring, bonnet and copper pin; Jacket is being wound with on the drum of copper cash and rivet clasp; Base plate is arranged on the rear end of drum; Bonnet is fixed on the rear end of drum; One end of copper pin connects drum and the other end stretches out with power supply from bonnet and is connected; Magnetizable spool, spring and base are successively set in the center tube of drum; Diaphragm of rubber is fixed on the front end of spool, and the periphery of diaphragm of rubber is connected with the center by the elasticity arch ring; Valve has flange, radial hole and eccentric axial bore, valve is fixed on the front end of drum by flange, form the step hole that cooperates with the diaphragm of rubber periphery, center hole and the eccentric opening that cooperates with the diaphragm of rubber center on the flange, step hole communicates with radial hole by center hole and communicates with axial bore by eccentric opening.

2. a kind of high corrosion-resisting diaphragm valve as claimed in claim 1 is characterized in that: be formed centrally jack-post in the above-mentioned spool; Be formed centrally in the diaphragm of rubber for the affixed axle sleeve of jack-post.

3. a kind of high corrosion-resisting diaphragm valve as claimed in claim 1 is characterized in that: be formed centrally in the above-mentioned diaphragm of rubber and can stretch into the plug that cooperates with center hole in the step hole.

4. a kind of high corrosion-resisting diaphragm valve as claimed in claim 1 is characterized in that: also form on the periphery of above-mentioned diaphragm of rubber and strengthen wall.

5. a kind of high corrosion-resisting diaphragm valve as claimed in claim 1 is characterized in that: and each overlaps an air tap sleeve is arranged on above-mentioned radial hole and the eccentric axial bore.

6. a kind of high corrosion-resisting diaphragm valve as claimed in claim 1, it is characterized in that: above-mentioned base plate and bonnet are one-body molded.