CN2312387Y - Electromagnetic valve - Google Patents

Abstract

The utility model relates to an electromagnetic valve. A valve inlet 10 and a valve outlet 11 are arranged on a cylindrical valve seat 1, and a sealing gasket is arranged on an upper concave table of the valve inlet 10. A magnetic cover 5 is arranged on an upper port of the valve seat 1, a coil 6 and a coil frame 7 are arranged in the magnetic cover 5, and a fixed armature 8 passes through a hole of the coil frame 7 to be fixed on a magnetic plate which is fixed on an upper port of the magnetic cover 5. A valve core 3 penetrates through a lower bottom hole of the magnetic cover 5 and the hole of the coil frame 7, and a spring 4 is arranged between a lower concave table of the valve core 3 and the bottom face of the magnetic cover 5. The utility model has the advantages of simple structure, reliable operation, small size, low cost and less electricity consumption, and is suitable for a fluid metering instrument in an integrated structure with a valve controlling system and metering.

Description

A kind of solenoid valve

The utility model is the solenoid valve that is used for gas, liquid conveying control, is a kind of electromagnetic valve that is contained in the measuring instrument inside of line transportation fluid specifically.

At present, along with the continuous increase of using combustion gas family, the intensity and the difficulty of the work of tabling look-up also continue to increase, and traditional gas meter of single function of measuring can't adapt to the demand in current market.The user is often taken place be in arrears with, refuse to hand over the gas expense or the worker that the checks meter phenomenon of claiming for charge at random.In order to solve a series of problems that the tollbooth of registering one's residence brings, magnetic card type, electronic gas instrument have appearred in the principle of using after other similar commodity realize purchasing combustion gas earlier on the market.This instrument all is to adopt the structure of separated type, and promptly control system, power supply, valve and former instrument are the branch body structures, can dismantle each other, and interconnecting between the each several part all is exposed to outside the table body.The instrument of this structure exists many unreliable factors, also can stay the hidden danger of doing trick to the individual user simultaneously.The basic outlet that addresses these problems is all installed control system, power supply, valve in former instrument exactly, and gas meter is integrated.

The purpose of this utility model provides a kind of device in liquid, gas dosing instrument inside, has reliable operation, and is simple in structure, and cost hangs down the solenoid valve with little power consumption.

The utility model is achieved in that shown in Fig. 1 structural representation, it by valve seat 1, sealing gasket 2, spool 3, spring 4, magnetic cover 5, coil 6, coil rack 7, decide armature 8, magnetic sheet 9, advance valve port 10, go out valve port 11 and go between 12 to form.The diapire of tubular valve seat 1 is provided with into valve port 10, wall suitable for reading is provided with out valve port 11, advance sealing gasket 2 is housed on the concave station on the valve port 10, it is suitable for reading that magnetic cover 5 is contained in valve seat 1, coil 6 is contained in the magnetic cover 5 on coil rack 7, decide armature 8 and penetrate in the hole of coil rack 7 and be fixed on the magnetic sheet 9, magnetic sheet 9 be fixed on magnetic cover 5 suitable for reading on; Spool 3 penetrates in the hole of the lower bottom hole of magnetic cover 5 and coil rack 7, between the bottom surface of spool 3 lower convex platforms and magnetic cover 5 spring 4 is housed.Deciding armature 8 is that permanent magnetic material constitutes.

The utility model is contained on the pipeline of measuring instrument inside, seals between valve seat 1 outer surface and the inner surface of pipeline, and fluid is intercepted by valve seat 1.When the utility model is in opening state as shown, spool 3 with decide armature 8 adhesives, whole in addition magnetic circuit is closed, the elastic force of spring 4 is not enough to overcome spool 3 and decides attraction force between the armature 8, thereby makes solenoid valve remain on stable opening state; Fluid enters in the valve seat 1 from advancing valve port 10, flows out from going out valve port 11.When the need electromagnetic valve is closed, pass to the direct current (d.c.) of certain orientation and intensity for coil 6, spool 3 and the magnetic force of deciding armature 8 are repelled each other, spool 3 is under the effect of repulsion and spring 4 elastic force, move downward and close into valve port 10, and then cut off electric current on the coil 6, because spool 3 and decide suction between the armature 8 less than the elastic force of spring 4, make the into stable closed condition of valve port 10 maintenances, and fluid is dammed.When coil 6 passes to reciprocal direct current (d.c.), spool 3 is inhaled mutually with the magnetic force of deciding armature 8, overcome the elastic force of spring 4, spool 3 is pull-in on decides on the armature 8, the latter two still keep adhesive to cut off electric current, valve port 10 keeps stable opening state and make into.

The utlity model has in sum simple in structure, reliable operation, volume is little, the advantage of the low and little power consumption of cost, it has realized that electromagnetic valve is contained in the measuring instrument, it is suitable for the measuring instrument of control system, power supply, valve and metering integral structure and uses.

Magnetic cover 5 of the present utility model, magnetic sheet 9 and spool 3 all are to be made by the permeability magnetic material electrical pure iron.Deciding armature 8 adopts the highest rare earth permanent-magnetic material of magnetic energy product to make.Valve seat 1 and coil rack 7 adopt non-magnetic stainless steel, copper and plastic or other material to make.Sealing gasket 2 adopts 267 fluorine rubber materials to make.Spring 4 adopts 1 chromium, 18 nickel, 9 titanium spring materials to make.Between base 1 and the magnetic cover 5, between magnetic cover 5 and the coil rack 7, between magnetic sheet 9 and coil rack 7 and the magnetic cover 5, magnetic sheet 9 and decide all to use 401 glue bonds together between the armature 8, and play the effect of sealing.Two lead-in wires 12 of coil 6 are drawn from the hole of coil rack 7 and magnetic sheet 9, the sealing of Kong Zhongyong 401 glue.

Claims (2)

1, a kind of solenoid valve, it is contained in the inside of fluid metering instrument, by valve seat 1, magnetic cover 5, coil 6, decide armature 8 and spool 3 etc. and form, it is characterized in that: the diapire of tubular valve seat 1 is provided with into valve port 10, and wall suitable for reading is provided with out valve port 11, advances sealing gasket 2 is housed on the concave station on the valve port 10, it is suitable for reading that magnetic cover 5 is contained in valve seat 1, coil 6 is contained in the magnetic cover 5 on coil rack 7, decide armature 8 and penetrate in the hole of coil rack 7 and be fixed on the magnetic sheet 9, magnetic sheet 9 be fixed on magnetic cover 5 suitable for reading on; Spool 3 penetrates in the hole of the lower bottom hole of magnetic cover 5 and coil rack 7, between the bottom surface of spool 3 lower convex platforms and magnetic cover 5 spring 4 is housed.

2, solenoid valve as claimed in claim 1 is characterized in that said to decide armature 8 be that permanent material constitutes.

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