CN2563381Y

CN2563381Y - Diaphragm type electromagnetic water valve

Info

Publication number: CN2563381Y
Application number: CN 02265961
Authority: CN
Inventors: 张小高
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-31
Filing date: 2002-07-31
Publication date: 2003-07-30
Anticipated expiration: 2012-07-31

Abstract

The utility model relates to a diaphragm type electromagnetic water valve which belongs to the pneumatic executive component field and is designed aiming at irrational structural design of the prior break valves. The technical key points of the utility model are that: a diaphragm provided with earholes is arranged on a connecting plane of a bottom cover and a connecting housing; a through hole is arranged on the central position of the diaphragm; a pin provided with a center hole through drilling is penetrated into the through hole; a gasket A is sleeved on the lower end of the pin; a washer, a gasket B and a pressing ring which are sleeved in turn on the upper end of the pin from the top down; the diaphragm is arranged between the gasket A and the pressing ring; one end of a coupling spring is sleeved inside the washer and connected with the pin through a rivet; the other end of the coupling spring is sleeved inside a groove on the lower end of a valve stem; a valve hole is drilled on the central position of the valve stem; a valve stem groove is milled on the side face of the valve stem. When like magnetic poles repel each other, the valve stem moves downwards; the diaphragm presses against a break hole; the water valve is on the closing state. When unlike magnetic poles attract each other, water enters into the valve hole drilled on the central position of the valve stem; the valve stem groove is milled on the side face of the valve stem; the diaphragm and the valve stem are both ejected by flow to be away from the break hole; the water valve is on the starting state. The utility model is suitable for frequent start or closure and suitable for being used in the environment with quite high humidity.

Description

Diaphragm type electromagnetism water valve

Affiliated technical field

The utility model relates to the pneumatic apparatus field, is a kind of diaphragm type electromagnetism water valve.

Background technique

At present, the valve kind that is used for the fluid class is more, stop valve for example, and it is by the moving up and down of spool, and realizes the open and close of valve.Published relevant diaphragm type valve in the patent documentation, but their structure is comparatively complicated, is not suitable for certain special industry valve.

Summary of the invention

The utility model can not be applicable to the characteristics of special industry with valve at stop valve, proposes a kind of diaphragm type electromagnetism water valve of meter and substitutes old product.Design proposal is with there is a natural attraction between the sexes after electromagnetism energising power, makes the diaphragm air inlet of this valve be in opening state; The principle that outage then repels each other with the same sex restores to the original state, and makes the diaphragm sealing of this valve be in normally off.This water valve compact structure, reasonable in design is applicable to the environmental work that humidity is bigger, and market prospects are good.

Description of drawings

Fig. 1 is a diaphragm type electromagnetism water valve structural representation;

Fig. 2 is a part disassembly-type schematic representation.

Sequence number and title among the figure: 1, coil winding assembly, 2, the field core assembly, 3, the pilot valve core assembly, 4, joint sleeve, 5, diaphragm unit, 6, bottom, 7, stuffing box gland, 8, protecting cover, 9, clamp, 10, valve pocket, A, rubber chock plug, 11, annular groove, 12, O-ring seal, 13, diaphragm, 14, connect spring, 15, valve rod groove, 16, little spring, 17, valve opening, 18, valve rod, 19, earhole.

Referring now to above schematic representation, its feature is described as follows: a kind of diaphragm type electromagnetism water valve is by the coil winding assembly, compositions such as field core assembly, pilot valve core assembly, joint sleeve, diaphragm unit, bottom assembly, it is characterized in that combining the matrix 13 that the plane is provided with band earhole 19 with joint sleeve 4 at bottom 6, the matrix center portion is a through hole, penetrate by the pin that is drilled with center hole, the underpart of pin is with the A pad, the upper end from top to bottom is with packing ring, B pad, trim ring successively, and matrix is to place between A pad and the trim ring; A headgear that connects spring 14 is gone in the packing ring, and by pin and riveting, be inserted in the groove of valve rod 18 underparts the other end, and connecting spring 14 is the vertical soft readjustment parts with diaphragm of valve rod.Bottom 6 in the bottom assembly is provided with annular groove 11, and O-ring seal 12 is inserted in the annular groove, when joint sleeve and bottom are fastened, plays the effect of sealing.

Valve rod 18 center portions are drilled with valve opening 17, and it is a through hole, and the hypomere portion aperture of through hole is less than epimere portion, and little spring 16 is to place epimere portion, is provided with rubber chock plug A in the concave station in hypomere portion aperture; Be milled with a valve rod groove 15 in the side of valve rod.

The top of valve pocket 10 is provided with curve bath, and clamp 9 embeds in the shell of coil winding assembly 1, and snaps in this curve bath, has saved screw rod and the traditional Placement of nut in the past.

At coil winding assembly 1 one side extracting power supply cords, its circle of contact that exposes greatly improves the electrical apparatus element water-proof performance of diaphragm type electromagnetism water valve by protecting cover 8 and stuffing box gland 7 adhering junctions.

Embodiment

Diaphragm type electromagnetism water valve water intake is connected with the water source pipeline, and water outlet is connected with the water pipeline, and the power line that the coil winding assembly is drawn is connected with power supply.The energising back is by the pole orientation in the control system control field core assembly, and when like pole repelled each other, the valve rod of pilot valve core assembly moved down (as shown in Figure 1), and diaphragm is pushed down by the hole.This moment, little spring 16 pressurizeds, rubber chock plug A withstands the pin center hole, and water valve is in closed condition.When there is a natural attraction between the sexes, spring recovered elastic force, and water is entered by the pin center hole, is milled with valve rod groove 15 through the side of valve rod, and diaphragm, valve rod are all pushed up from by the hole by current, make water valve be in opening state.And the earhole 19 of diaphragm disjunctor is by in the eyelet that is bolted to bottom all the time, and is good because of diaphragm plasticity, stands lifting or falling of several times.Connect spring and play the vertical soft readjustment effect with diaphragm of valve rod, so the coaxality of valve rod can be guaranteed, the open and close of valve also easily realize.

Claims

1, diaphragm type electromagnetism water valve is by the coil winding assembly, and compositions such as field core assembly, pilot valve core assembly, joint sleeve, diaphragm unit, bottom assembly is characterized in that:

A) combine the matrix (13) that the plane is provided with band earhole (19) with joint sleeve (4) at bottom (6), the matrix center portion is a through hole, penetrate by the pin that is drilled with center hole, the underpart of pin is with the A pad, the upper end from top to bottom is with packing ring, B pad, trim ring successively, and matrix is to place between A pad and the trim ring; A headgear that connects spring (14) is gone in the packing ring, and by pin and riveting, be inserted in the groove of valve rod (18) underpart the other end;

B) valve rod (18) center portion is drilled with valve opening (17), and it is a through hole, and the hypomere portion aperture of through hole is less than epimere portion, and little spring (16) is to place epimere portion; In the concave station in hypomere portion aperture, be provided with rubber chock plug A; Be milled with a valve rod groove (15) in the side of valve rod.

2, diaphragm type electromagnetism water valve according to claim 1 is characterized in that being provided with curve bath on the top of valve pocket (10), and clamp (9) embeds in the shell of coil winding assembly (1), and snaps in this curve bath.

3, diaphragm type electromagnetism water valve according to claim 1 is characterized in that at coil winding assembly (1) one side extracting power supply cord its circle of contact that exposes is by protecting cover (8) and stuffing box gland (7) adhering junction.