CN102313031A

CN102313031A - Valve member

Info

Publication number: CN102313031A
Application number: CN2010102236326A
Authority: CN
Inventors: 浅井直也
Original assignee: Takasago Electric Suzhou Co Ltd
Current assignee: Takasago Electric Suzhou Co Ltd
Priority date: 2010-08-06
Filing date: 2010-08-06
Publication date: 2012-01-11

Abstract

The invention discloses a valve member which comprises a valve body and a sealing part capable of moving up and down in the valve body, wherein the valve body is internally provided with a plurality of runners communicated to the inner surface of the valve body, the valve body is internally provided with at least two valve seats configured around the runners, the sealing part is matched with the at least two valve seats through movement so that the at least two valve seats are simultaneously opened or closed; and the sealing part is completely coincident with the valve seat to form at least two sealing surfaces, when one sealing surface is failed, other sealing surfaces replace the failed sealing surface to realize a sealing effect.

Description

Valve member

Technical field

The present invention relates to a kind of valve member, relate in particular to a kind of fluid and switch current direction of being used to open or close, and through dual or multiplex valve structure being set to improve the valve member of airtight performance.

Background technique

In recent years, the precision requirement of all kinds of surveying instruments is increasingly high.Especially for employed valve member in the various analytical instrument such as chemical analysis instrument, environmental analysis instrument, life science instrument, guarantee that valve member seal property is integral.But existing solenoid valve seat design becomes single seal construction.The foreign matter that fluid in the solenoid valve contains, the solid matters such as crystal of separating out from fluid cause Sealing to be stuck or scratch through regular meeting, cause the sealability of this solenoid valve can not obtain enough assurances, thereby reduce sealing, cause leakage.

Particularly, corrosion resistance is important to these analytical instrument, and the valve seat of employed solenoid valve is processed by corrosion-resisting resin or the anti-corrosive rubber poorer slightly than corrosion-resisting resin in these analytical instrument.But, when foreign matter is stuck, be easy to sustain damage by the valve seat of corrosion-resisting resin manufacturing.In addition, for for the valve seat of anti-corrosive rubber manufacturing, the damage that anti-corrosive rubber can be caused by smaller foreign matter through the elastic force reparation of self.But when foreign matter was relatively big, valve seat can't be avoided damage through the elastic force of rubber.In such cases, valve seat can sustain damage owing to bigger foreign matter, thereby causes valve seat leakage.

Summary of the invention

To the deficiency of existing technology, the purpose that the present invention solves provides a kind of multi-sealed structure that has, the valve member of good seal performance.

For solving the problems of the technologies described above, technological scheme of the present invention is achieved in that

A kind of valve member; It comprises valve body and the sealed member that can in valve body, move; Be provided with the some runners that are communicated to valve interior surface in the said valve body, wherein, be provided with in the said valve body and be disposed at said runner at least two valve seats on every side; Said sealed member cooperates with said two valve seats through motion at least, and said at least two valve seats are opened or closed simultaneously.

When said sealed member and said valve seat fit like a glove, form at least two sealing surfaces.

Described sealing surface is separate, even wherein the sealability of a certain sealing surface lost efficacy, other sealing surface replaces it to realize sealability.

The invention has the beneficial effects as follows: simple in structure, good seal performance.

Description of drawings

Fig. 1 is an expression first embodiment of the invention electromagnetic valve structure schematic representation;

Fig. 2 is the local enlarged diagram of mark A in the presentation graphs 1;

Fig. 3 is an expression second embodiment of the invention electromagnetic valve structure schematic representation;

Fig. 4 is the local enlarged diagram of mark B in the presentation graphs 3;

Fig. 5 is an expression third embodiment of the invention electromagnetic valve structure schematic representation;

Fig. 6 is the local enlarged diagram of mark C in the presentation graphs 5.

Reference character:

10 valve bodies, 101 valve seats, 102 conduits

103 valve interior surfaces, 104 runner A, 105 runner B

20a plane type sealed member 20b steps type seal parts 20c cone seal parts

201 sealing surfaces, 30 Electromagnetic Control elements

Embodiment

Fig. 1, Fig. 2 have disclosed the valve member of first kind of preferred implementation of the present invention.The valve member that is disclosed among Fig. 1, Fig. 2 is a solenoid valve.Plane type sealed member 20a that said solenoid valve comprises valve body 10, move up and down in solenoid valve inside and the Electromagnetic Control element 30 that moves up and down as driving source control plane formula sealed member 20a with electromagnetic coil.When Electromagnetic Control element 30 was arranged to the control unit through the operation of machinery type or other mode control valves, this solenoid valve also can be other valve members.

Be provided with runner A104 and runner B 105 in the valve body 10, it all is communicated to valve interior surface 103.Be provided with in the said valve body 10 to be and be disposed at runner A104 at least two valve seats 101 on every side around shape.Be provided with conduit 102 between adjacent two valve seats.Said plane type sealed member 20a cooperates with said valve seat 101, and said at least two valve seats 101 are opened or closed simultaneously.When the plane type sealed member 20a of solenoid valve with after valve seat 101 on being arranged on valve interior surface 103 separates, runner A104 and runner B105 connect; After the plane type sealed member 20a of solenoid valve and valve seat 101 sealings that are arranged on the valve interior surface 103, runner A104 and runner B105 are isolated from each other.Concrete controlling method is identical with former solenoid valve, does not do here and gives unnecessary details.

As shown in Figure 2, in valve body 10, being provided with runner A104 is the multiple valve seat 101 of plane at center, and itself and plane type sealed member 20a form movable combination.This activity combination uses resin material to process usually, but different according to purposes, also can use the such elastic material of rubber.Each valve seat 101 on the valve body can both fit like a glove with plane type sealed member 20a, forms sealing surface 201.Each sealing surface 201 is the plane same plane that is positioned at.

For the activity combination of using resin material to process, when valve cut out, the foreign matter of sneaking in the fluid damaged sealing surface 201 easily, thereby caused leaking.Yet, to be arranged to when dual or multiple when valve seat, the sealing surface 201 of the valve seat of opposite side still can keep sealability.

Fig. 3, Fig. 4 have disclosed second kind of preferred implementation of the present invention.Said solenoid valve comprises the Electromagnetic Control element 30 that valve body 10, the steps type seal parts 20b that moves up and down in solenoid valve inside and operating console step seal parts 20b move up and down.When Electromagnetic Control element 30 was arranged to the control unit through the operation of machinery type or other mode control valves, this solenoid valve also can be other valve members.

Be provided with runner A104 and runner B105 in the valve body, it all is communicated to valve interior surface 103.Be provided with in the said valve body 10 to be and be disposed at runner A104 at least two valve seats 101 on every side around shape.Be provided with conduit 102 between adjacent two valve seats.Said steps type seal parts 20b cooperates with said valve seat 101, and said at least two valve seats 101 can be opened or closed simultaneously.When the steps type seal parts 20b of solenoid valve with after valve seat 101 on being arranged on valve interior surface 103 separates, runner A104 and runner B105 connect; After the steps type seal parts 20b of solenoid valve and valve seat 101 sealings that are arranged on the valve interior surface 103, runner A104 and runner B105 are isolated from each other.Concrete controlling method is identical with former solenoid valve, does not do here and gives unnecessary details.

The difference of second mode of execution and first mode of execution is: be that the center is provided with the multiple valve seat 101 of step type with runner A104 on the valve body 10, itself and steps type seal parts 20b form movable combination.This activity combination uses resin material to process usually, but different according to purposes, also can use the such elastic material of rubber.Each valve seat 101 on the valve body can both fit like a glove with steps type seal parts 20b, forms sealing surface 201.Said each sealing surface 201 has the face of at least two high low heads that are parallel to each other and have.Than first mode of execution, second mode of execution can avoid that a plurality of valve seats are stuck simultaneously when running into relatively large foreign matter.Therefore, the leakiness of solenoid valve self has reduced, and the stability of sealability has significantly improved.

In addition, for the activity combination of being processed by resin material, when closed electromagnetic valve, the foreign matter of sneaking in the fluid damages sealing surface 201 easily, thereby causes leaking.Yet, to be arranged to when dual when valve seat, the sealing surface 201 of the valve seat of opposite side still can keep sealability.

Fig. 5, Fig. 6 are the third preferred implementation of the present invention.Said solenoid valve comprises the Electromagnetic Control element 30 that valve body 10, the cone seal parts 20c that moves up and down in solenoid valve inside and control cone seal parts 20c move up and down.When Electromagnetic Control element 30 was arranged to the control unit through the operation of machinery type or other mode control valves, this solenoid valve also can be other valve members.

Be provided with runner A104 and runner B105 in the valve body, it all is communicated to valve interior surface 103.Be provided with in the said valve body 10 to be and be disposed at runner A104 at least two valve seats 101 on every side around shape.Be provided with conduit 102 between adjacent two valve seats.Said cone seal parts 20c cooperates with said valve seat 101, and said at least two valve seats 101 can be opened or closed simultaneously.When the cone seal parts 20c of solenoid valve with after valve seat 101 on being arranged on valve interior surface 103 separates, runner A104 and runner B105 connect; After the cone seal parts 20c of solenoid valve and valve seat 101 sealings that are arranged on the valve interior surface 103, runner A104 and runner B105 are isolated from each other.Concrete controlling method is identical with former solenoid valve, does not do here and gives unnecessary details.

The 3rd mode of execution is with the difference of first and second mode of execution: the internal surface 103 from valve body 10 is provided with the inclined-plane that cooperates with cone seal parts 20c.Be that the center is provided with multiple valve seat 101 with runner A104 on the valve body 10, itself and cone seal parts 20c form movable combination.This activity combination uses resin material to process usually, but different according to purposes, also can use the such elastic material of rubber.Each valve seat 101 on the valve body can both fit like a glove with cone seal parts 20c, forms sealing surface 201.Each sealing surface 201 is on the same conical surface.The same conical surface also possibly be a sphere.This structure that cone seal parts 20c cooperates with valve seat 101 in valve body 10 can be revised its Displacement error, makes sealing be further enhanced.

For the purpose of the present invention, even when having bigger foreign matter to get into,, still can guarantee not snap in the sealing surface proper functioning of another valve seat of foreign matter, thereby guarantee the sealing of valve seat through the elasticity of each valve seat.After solenoid valve was opened once more, foreign matter can be discharged solenoid valve with fluid, and the sealing that once snaps in the valve seat of foreign matter can be recovered again.Therefore, the leakiness of solenoid valve self has reduced, and the stability of sealability has significantly improved.Resin or the rubber material as the valve seat material selected for use all have corrosion resistance, and this is very important for analytical instrument.This structure has improved the stability of solenoid valve sealability, has prolonged the working life of valve.

Although be the example purpose; Preferred implementation of the present invention is disclosed; But those of ordinary skill in the art will recognize, under the situation that does not break away from disclosed scope of the present invention and spirit by appending claims, various improvement, increase and replacement are possible.

Claims

1. valve member; It comprises valve body and the sealed member that can in valve body, move up and down; Be provided with the some runners that are communicated to valve interior surface in the said valve body; It is characterized in that: be provided with in the said valve body and be disposed at said runner at least two valve seats on every side, said sealed member cooperates with said two valve seats through motion at least, and said at least two valve seats are opened or closed simultaneously.

2. according to the valve member described in the claim 1, it is characterized in that: said valve member further comprises the control unit of the said sealed member motion of control.

3. according to the valve member described in the claim 2, it is characterized in that: said control unit is the Electromagnetic Control element, and said valve member is for controlling the solenoid valve of said sealed member motion through said Electromagnetic Control element.

4. according to the valve member described in the claim 1, it is characterized in that: said some runners comprise first and second runner, when said sealed member moves downward when coincideing with said at least two valve seats, form at least two sealing surfaces.

5. according to the valve member described in the claim 4, it is characterized in that: said sealed member is arranged to the plane type structure, and said at least two sealing surfaces are the plane same plane that is positioned at.

6. according to the valve member described in the claim 4, it is characterized in that: said sealed member is arranged to staircase structural model, and said at least two sealing surfaces have being parallel to each other respectively and have the face of high low head.

7. according to the valve member described in the claim 4, it is characterized in that: said sealed member is arranged to taper, and said at least two sealing surfaces are positioned on the same conical surface or on the same sphere.

8. according to the valve member described in the claim 1, it is characterized in that: said each valve seat and said sealed member are processed with resin material.

9. according to the valve member described in the claim 1, it is characterized in that: at least one in said sealed member and the said valve seat is to process with rubber material.

10. according to the valve member described in the claim 1, it is characterized in that: said each adjacent valve seat is provided with conduit between the sealed member place near correspondence.