CN2325608Y - Water feeding electromagnetic valve - Google Patents

Abstract

The utility model relates to a water feeding electromagnetic valve, composed of a valve seat, a rubber valve cover, a plastic bed pan fixing plate, magnet conducting cover, a coil, a bobbin, a guide sleeve, a spring, a magnet conducting valve rod and a rubber valve head. A ring-shaped magnet which is sheathed on the guide sleeve is arranged in the magnet conducting cover. In the guide sleeve, an iron block magnetized by the ring-shaped magnet is positioned between the upper end of the spring and the magnet conducting cover. The upper end of the magnet conducting valve rod is provided with a hole which causes the lower end of the spring to support the bottom of the magnet conducting valve rod. The electromagnetic valve can realize low consumption, energy saving and bistable effect with low-voltage direct current.

Description

A kind of entering water electromagnetic valve

At present, the kind of solenoid valve is more, and its principle is identical.In " the novel washing machine use and maintenance complete works " of Fujian science tech publishing house publication in 1996, chapter 6, the disclosed entering water electromagnetic valve of first segment is made of valve seat, rubber valve gap, plastics disc, fixed plate, magnetism-guiding hood, coil, coil carrier, guide sleeve, spring, magnetic conduction valve rod, rubber valve head.What this solenoid valve used is Ac, and solenoid valve could be opened when having only energising, otherwise the monostable solenoid valve of just closing, so the voltage height, power consumption is many.

The purpose of this utility model provides a kind of entering water electromagnetic valve of bistable low-loss and energy-saving.

The purpose of this utility model realizes by following proposal: a ring magnet that is enclosed within on the guide sleeve is set in magnetism-guiding hood, is between fixed plate and the coil carrier; In guide sleeve, be provided with one by the magnetized iron block of ring magnet, be between spring upper end and the magnetism-guiding hood; In magnetic conduction valve rod upper end a hole is set, makes the spring lower end head on its end.

Ring magnet also can be replaced by being arranged on a magnet that is positioned at the iron block upper end in the guide sleeve.

The utility model is owing to adopting magnet to make the iron block magnetization realize bistable state, uses low-voltage DC to reach from a kind of state to another kind of state, thus the purpose of realization low-loss and energy-saving.

Below in conjunction with accompanying drawing the utility model is elaborated.

Fig. 1 is a closed condition schematic representation of the present utility model;

Fig. 2 is the opening state schematic representation of Fig. 1;

Fig. 3 is the closed condition schematic representation of the another kind of structure of Fig. 1;

Fig. 4 is the opening state schematic representation of Fig. 3.

With reference to Fig. 1, Fig. 2, the utility model is made of valve seat 1, rubber valve gap 2, plastics disc 3, fixed plate 4, magnetism-guiding hood 5, ring magnet 6, coil 7, coil carrier 8, guide sleeve 10, iron block 11, spring 13, magnetic conduction valve rod 14, rubber valve head 15.Valve seat 1 has water intake, water outlet, valve.Rubber valve gap 2 and plastics disc 3 are together on the valve of valve seat 1.Plastics disc 3 has two projections, and through hole is arranged above, and the through hole in the neutral position claims relief hole, and aside the through hole of position claims the hole of pressurizeing, and relief hole is greater than the pressurization hole.Entangle firm there being on two holes and the plastics disc 3 two projections match on the rubber valve gap 2.Fixed plate 4 is connected on the valve seat 1, and there is hole the centre, with rubber valve gap 2, plastics disc 3 and guide sleeve 10 large cylinders one skull at the valve place.Magnetism-guiding hood 5 is connected with fixed plate 4.Ring magnet 6, coil 7 and coil carrier 8 are enclosed within guide sleeve 10 outsides, place in the magnetism-guiding hood 5.Ring magnet 6 is in the lower end of coil carrier 8, by fixed plate 4.Guide sleeve 10 is connected by the little cylinder of large cylinder and constitutes, one of large cylinder with being pressed on the valve seat 1 around the rubber valve gap 2, can not flow out water in the valve outside herein, plastics disc 3 can move up and down in large cylinder, and hole withstood on the magnetism-guiding hood 5 in the middle of one of little cylinder passed fixed plate 4.In guide sleeve 10 little cylinders, arrange iron block 11, spring 13, magnetic conduction valve rod 14, rubber valve head 15 from top to bottom successively.Iron block 11 is led to into outside magnetism-guiding hood 5 by screw 9 and is fixed, and between iron block 11 and guide sleeve 10 seal ring 12 is arranged.Magnetic conduction valve rod 14 can move up and down in guide sleeve 10 little cylinders, and there is a hole its upper end, and spring 13 is between at the bottom of the hole of iron block 11 and magnetic conduction valve rod 14, and there is the plush copper that interlocks rubber valve head 15 its lower end.Rubber valve head 15 heads on relief hole.

With reference to Fig. 3, Fig. 4, as a kind of special case of Fig. 1, replace going up ring magnet 6 in the example, and magnet 16 placed in the guide sleeve 10 be positioned at above the iron block 11 with magnet 16.Other structures and Fig. 1 are identical.This external guide sleeve 10 contacts with magnetism-guiding hood 5 increases two-section magnetic conduction sleeve 17,18 between anchor ring, to increase the electromagnetic force of entering water electromagnetic valve.

Working principle: when solenoid valve is in closed condition, the magnetic force that is produced by the magnetized iron blocks 11 of ring magnet 6 is less than the gravity of magnetic conduction valve rod 14 and the elastic force of spring 13, rubber valve head 15 is blocked relief hole, at this moment the water of water intake enters enclosed cavity above the plastics disc 3 by the pressurization hole, make that hydraulic pressure equates with influent pressure in the chamber, this just guarantees that rubber valve gap 2 tightly covers on valve.When coil 7 fed the instantaneous direct current of forward, magnetic conduction valve rod 14 is magnetized, and was opposite with the magnetic of 11 of iron blocks, suction therebetween is greater than the elastic force of spring 13 and the gravity of magnetic conduction valve rod 14, be drawn onto together, spring 13 is compressed, and at this moment relief hole is opened, water flows out from water outlet by relief hole rapidly, make rubber valve gap 2 occur pressure difference up and down immediately, plastics disc 3 is upwards pushed away, and valve is opened, water flows out from water outlet through valve from water intake, as shown in Figure 2.At this moment the suction of iron block 11 and magnetic conduction valve rod 14 makes magnetic conduction valve rod 14 be in steady state greater than the elastic force of spring 13 and the gravity of magnetic conduction valve rod 14.When coil 7 feeds reverse instantaneous direct current, the magnetic that magnetic conduction valve rod 14 produces is identical with 11 of iron blocks, magnetic conduction valve rod 14 is under its gravity, magnetic force, elastic force effect, move down, rubber valve head 15 is again with pressure release port lid jail, water is gone into enclosed cavity plastics disc 3 above from the pressurization orifice flow again, increases its interior pressure, again with valve closing.The suction of the 11 pairs of magnetic conduction valve rods 14 of iron block that at this moment are magnetized is less than the elastic force of spring 13 and the gravity of magnetic conduction valve rod 14, so magnetic conduction valve rod 14 is in steady state.The working principle of Fig. 3, Fig. 4 is identical with Fig. 1, Fig. 2's.

Claims (2)

1. entering water electromagnetic valve, constitute by valve seat [1], rubber valve gap [2], plastics disc [3], fixed plate [4], magnetism-guiding hood [5], coil [7], coil carrier [8], guide sleeve [10], spring [13], magnetic conduction valve rod [14], rubber valve head [15], it is characterized in that: in magnetism-guiding hood [5], be positioned between fixed plate [4] and the coil carrier [8], a ring magnet [6] that is enclosed within on the guide sleeve [10] is set, in guide sleeve [10], be positioned between spring [13] upper end and the magnetism-guiding hood [5], be provided with one by the magnetized iron block of ring magnet [6] [11]; In magnetic conduction valve rod [14] upper end a hole that makes spring [13] lower end head on its end is set.

2. entering water electromagnetic valve according to claim 1 is characterized in that: described ring magnet [6] is for being arranged on a piece magnet [16] that is positioned at iron block [11] upper end in the guide sleeve [10].

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