CN201377624Y

CN201377624Y - Electromagnetic valve

Info

Publication number: CN201377624Y
Application number: CN200920129128U
Authority: CN
Inventors: 杨华文
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-06
Filing date: 2009-01-06
Publication date: 2010-01-06
Anticipated expiration: 2019-01-06

Abstract

The utility model discloses an electromagnetic valve, which aims to resolve technical problem of enabling the electromagnetic valve to be modularized and to be stable in property, easy in maintenance, simple in structure and low in production cost. The technical scheme of the utility model includes that the electromagnetic valve comprises a valve body, a membrane and a valve cover, upper ends of valve assemblies inside the valve body are connected with the membrane, the membrane is connected with the valve cover, the valve body is formed by more than two valve assemblies which are parallelly in integral molding, and the valve body is equipped with an air inlet and an air discharge opening. Compared with the prior art, the electromagnetic valve integrates a pilot valve and a valve main body, and then, the electromagnetic valve is faster in switching speed, larger in flow, higher in stability, longer in product service life and easy in maintenance. Further, the electromagnetic valve can be molded in injection, compression casting or casting, is fine in consistency of products, and can also reduce production cost of enterprises.

Description

Solenoid valve

Technical field

The utility model relates to a kind of solenoid valve, the leading type air-operated solenoid valve that especially a kind of oxygenerator is used.

Background technique

Because oxygen in medical treatment, industrial purposes more and more widely, people increase day by day to the demand of oxygen, the developing direction of oxygen generating plant also develops from the past miniaturization of traditional main equipment, modularization, removable or even portable direction, and is therefore also more and more higher to the requirement of the critical component solenoid valve in the oxygenerator.The passage that the prior art solenoid valve is formed needs complicated adapter to connect, and pipeline too much can influence the flow and the pressure of air in the gas circuit, and the connection of whole gas circuit is time-consuming takes a lot of work, and its tightness reliability is not high yet, and maintain and replace bothers especially.

Summary of the invention

The purpose of this utility model provides a kind of solenoid valve, and the technical problem that solve is to make the solenoid valve modularization, stable performance, and for ease of maintenaince and simple in structure, cost of production is low.

The utility model is by the following technical solutions: a kind of solenoid valve, comprise valve body, diaphragm and valve gap, the valve group upper end in the described valve body connects diaphragm, connects valve gap on the diaphragm, described valve body is made of side by side the valve group more than two groups of global formation, and described valve body is provided with suction port and relief opening.

The bottom of the utility model valve body is provided with the air outlet.

The top of the utility model valve body is provided with pilot valve, and the upper end of pilot valve is provided with coil.

Valve group of the present utility model is made up of first valve and second valve.

Be provided with first open tubular column in first valve of the present utility model, described suction port is communicated with first valve, and the air outlet is communicated with second valve, first open tubular column.

Be provided with second open tubular column in second valve of the present utility model, described relief opening is communicated with second open tubular column.

Be provided with respectively independently first valve gap, second valve gap with first valve, the second valve corresponding position on the valve gap of the present utility model.

One group of the present utility model independently first valve gap, second valve gap and another group independently are respectively equipped with first guide groove, second guide groove between second valve gap, first valve gap.

Be respectively equipped with first annular recess, second annular recess in first valve gap of the present utility model and second valve gap, described first annular recess, second annular recess connect first guide groove, second guide groove respectively.

Be provided with the identical diaphragm of quantity with the corresponding position of valve group on the diaphragm of the present utility model, described diaphragm is made up of outer ring and inner ring, described outer ring is for upwards the raised structures and first valve form the cavity of sealing, the cavity of formation sealing between the inner ring and first open tubular column, second open tubular column.

The utility model compared with prior art, and pilot valve and valve body is integrated, makes that the solenoid valve switch speed is faster, flow is bigger, stability is higher, the product longer service life, and be easy to safeguard.On the other hand the present invention can injection moulding, die casting or casting, its consistency of product is good, also can reduce enterprise's cost of production.

Description of drawings

Fig. 1 is the plan view of the utility model solenoid valve.

Fig. 2 is the sectional view of Fig. 2 along the A-A direction.

Fig. 3 is the right elevation of the utility model solenoid valve.

Fig. 4 is the worm's eye view of the utility model solenoid valve.

Fig. 5 is the structural representation of the utility model valve body.

Fig. 6 is the internal structure schematic representation of the utility model valve gap.

Fig. 7 is the structural representation of the utility model diaphragm.

Fig. 8 is the sectional view of Fig. 7 along the B-B direction.

Fig. 9 is the internal structure schematic representation of three groups of valve gaps of the utility model.

Embodiment

The utility model will be further described below in conjunction with accompanying drawing.

Shown in Fig. 1,2,3 and 4, solenoid valve of the present utility model comprises valve body 4, diaphragm 5 and valve gap 3, described valve body 4 is made of side by side two groups of global formation or three groups of valve groups 8, valve group 8 upper ends in the valve body 4 connect diaphragm 5, connect valve gap 3 on the diaphragm 5, be provided with suction port 6 and relief opening 7 in a side of valve body 4, the bottom of valve body 4 is provided with air outlet 9, the top of described valve body 4 is provided with pilot valve 2, and the upper end of pilot valve 2 is provided with coil 1.

As shown in Figure 5, structural representation for the utility model valve body, described valve body 4 is made of side by side two groups of valve groups 8 of global formation, valve group 8 is made up of first valve 81 and second valve 82, in first valve 81, be provided with first open tubular column, 811, the first valves 81 and be communicated with, in second valve 82, be provided with second open tubular column 821 with suction port 6, second open tubular column 821 is communicated with relief opening 7, and the air outlet 9 on the valve body 4 is communicated with second valve 82, first open tubular column 811.

As shown in Figure 6, structural representation for the utility model valve gap, on the described valve gap 3 with first valve 81, second valve, 82 corresponding positions are provided with respectively independently two group of first valve gap 31, second valve gap 32, one group of first valve gap 31 independently, second valve gap 32 is organized independently second valve gap 32 with another, be respectively equipped with first guide groove 33 between first valve gap 31, second guide groove 34, in first valve gap 31 and second valve gap 32, be respectively equipped with first annular recess 35, second annular recess 36, described first annular recess 35, second annular recess 36 connects first guide groove 33 respectively, second guide groove 34.

As shown in Figure 7 and Figure 8, structural representation for the utility model diaphragm, be provided with the identical diaphragm valve of quantity 51 with valve group 8 corresponding positions on the described diaphragm 5, described diaphragm valve 51 is made up of outer ring 52 and inner ring 53, described outer ring 52 is for upwards the raised structures and first valve 81 form the cavity of sealing, the cavity of formation sealing between the inner ring 53 and first open tubular column 811, second open tubular column 821.

As shown in Figure 9, structural representation for three groups of valve gaps of the utility model, when valve body 4 adopts the structure of three groups of valve groups 8, on the valve gap 3 with first valve 81, second valve, 82 corresponding positions are provided with respectively independently three group of first valve gap 31, second valve gap 32, one group of first valve gap 31 independently, second valve gap 32 of second valve gap 32 and second group, be respectively equipped with first guide groove 33 between the 3rd group first valve gap 31, second guide groove 34, the first described second group valve gap 32 is connected by first guide groove 33 with the 3rd group second valve gap 32, in first valve gap 31 and second valve gap 32, be respectively equipped with first annular recess 35, second annular recess 36, described first annular recess 35, second annular recess 36 connects first guide groove 33 respectively, second guide groove 34.

As shown in Figure 2, one group of valve group 8 is connected by first valve 81 of two 2/2-ways, second valve 82 and air outlet 9, suction port 6 and is connected a pilot valve 2 again and forms in the utility model, if use two groups of molecular sieves then valve body 4 form side by side by two groups of valve groups 8, use three groups of molecular sieves then valve body 4 form by three groups of valve group 8 bodies.

Its working principle is to enter from A ' chamber when air, after pilot valve 2 begins by the setting rule, air pressure under first kind of state in the D chamber is zero, A ' the chamber of air pressure in the C chamber and air inlet air pressure equates, because A ' chamber air pressure is greater than the D chamber, so air can be pushed a diaphragm 5 open and enter into the E chamber from A ' chamber in first valve 81, another diaphragm 5 ' of this moment is because equating in the air pressure in the C chamber and the E chamber, but the air pressure in B chamber is zero in the relief opening 7, so power that makes progress that the downforce that the C chamber that diaphragm 5 ' is subjected to produces produces diaphragm 5 ' greater than the E chamber, so second valve 82 cuts out, air has directly been connected molecular sieve by the E chamber, finishes molecular sieve air inlet action; Pilot valve 2 switches after arriving certain set time, the air pressure in C chamber is zero in the state in second, the air pressure in D chamber equates with the air pressure in A ' chamber in the suction port 6, because the air pressure in the E chamber is greater than air pressure in the C chamber, so diaphragm 5 ' can be open, promptly be that second valve 82 is opened, air is discharged from the B chamber after can entering relief opening 7 again by the E chamber in the molecular sieve, the pressure in D chamber equates with pressure in the A ' chamber in first valve 81 simultaneously, equal zero because the E chamber is communicated with pressure with B ' chamber at this moment, the down pressure that diaphragm 5 ' is subjected to is greater than the power that makes progress, so first valve 81 cuts out, gas in the molecular sieve is by the E chamber, discharge in B ' chamber, finishes the exhaust action of molecular sieve.

The effect of solenoid valve of the present utility model is the conversion of free rule in this two states, finishes the work of molecular sieve oxygen generation.

Claims

1. solenoid valve, comprise valve body (4), diaphragm (5) and valve gap (3), valve group (8) upper end in the described valve body (4) connects diaphragm (5), diaphragm (5) is gone up and is connected valve gap (3), it is characterized in that: described valve body (4) is made of side by side the valve group more than two groups (8) of global formation, and described valve body (4) is provided with suction port (6) and relief opening (7).

2. solenoid valve according to claim 1 is characterized in that: the bottom of described valve body (4) is provided with air outlet (9).

3. solenoid valve according to claim 2 is characterized in that: the top of described valve body (4) is provided with pilot valve (2), and the upper end of pilot valve (2) is provided with coil (1).

4. solenoid valve according to claim 3 is characterized in that: described valve group (8) is made up of first valve (81) and second valve (82).

5. want 4 described solenoid valves according to right, it is characterized in that: be provided with first open tubular column (811) in described first valve (81), described suction port (6) is communicated with first valve (81), and air outlet (9) are communicated with second valve (82), first open tubular column (811).

6. solenoid valve according to claim 5 is characterized in that: be provided with second open tubular column (821) in described second valve (82), described relief opening (7) is communicated with second open tubular column (821).

7. solenoid valve according to claim 6 is characterized in that: described valve gap (3) is gone up with first valve (81), second valve (82) corresponding position and is provided with respectively independently first valve gap (31), second valve gap (32).

8. solenoid valve according to claim 7 is characterized in that: described one group independently first valve gap (31), second valve gap (32) and another group independently are respectively equipped with first guide groove (33), second guide groove (34) between second valve gap (32), first valve gap (31).

9. solenoid valve according to claim 8, it is characterized in that: be respectively equipped with first annular recess (35), second annular recess (36) in described first valve gap (31) and second valve gap (32), described first annular recess (35), second annular recess (36) connect first guide groove (33), second guide groove (34) respectively.

10. solenoid valve according to claim 9, it is characterized in that: described diaphragm (5) is gone up and is provided with the identical diaphragm of quantity (51) with the corresponding position of valve group (8), described diaphragm (51) is made up of outer ring (52) and inner ring (53), described outer ring (52) is for upwards raised structures and first valve (81) form the cavity of sealing, the cavity of formation sealing between inner ring (53) and first open tubular column (811), second open tubular column (821).