CN87205154U

CN87205154U - Pneumatic liquid switch valve

Info

Publication number: CN87205154U
Application number: CN 87205154
Authority: CN
Inventors: 邓长春
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-09-02
Filing date: 1987-09-02
Publication date: 1988-06-29

Abstract

The utility model discloses a pneumatic liquid switch valve combined by a liquid level pneumatic regulator and a cone valve. The pneumatic liquid switch valve can convert the liquid level variation in a liquid storage container into gas pressure to control the cone valve to open or close on basic principles of hydraulic pressure, atmospheric pressure and mechanics, has achieving the functions of automatic liquid pouring and anti-overflow when the liquid is poured into the liquid storage container. The pneumatic liquid switch valve has the characteristics of low cost, simple structure, energy sources saving, convenient use and high reliability, so that the utility model can be used for the automatic pouring of various liquids.

Description

Pneumatic liquid switch valve

The utility model is the automatic liquid storage device that is used for people's lives water or engineering, promptly is used for the switch valve of controlling plumbing fixtures fluid break-make, belongs to valve technology field.

Existing automated fluid switch, a kind of is the floating ball lever formula, it utilizes liquid level change, the buoyancy of ball float makes it with liquid level change, amplifies by lever force, makes valve opening or closes, reach the effect of automatic liquid storage body, but its volume is big, structure is complicated, need be installed in the fixed position and use.Another kind is an electronic type, and it is to utilize liquid level change, makes control electric contact conducting or disconnection, drives electromagnetic valve again and makes valve opening or switching, and its price height needs electricity consumption, is not suitable for flammable liquid, and complex structure, reliability are relatively poor.

Task of the present utility model be design a kind of simple in structure, volume is little, simple installation, can use, be applicable to liquid automatic switch valve various liquid, that do not consume energy the source in the on-fixed position.

Solution of the present utility model has been used hydraulic-pneumatic and mechanics groundwork and technology the liquid level gas pressure regulator has been combined with cone valve, realizes that stream comes in the pipeline liquid automatically pours into by the liquid level change of liquid storage container or the anti-overflow effect when stopping to be filled into container with liquid.

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

Fig. 1: schematic diagram of the present utility model.

Fig. 2: structural representation of the present utility model.

With reference to Fig. 1, vapour-pressure type liquid switch valve is connected with pipeline (8), and the tracheae (2) of vapour-pressure type liquid switch valve inserts in the liquid storage container (1), the head of liquid P that the liquid level H in the liquid storage container (1) changes ₁Convert gaseous tension P to by tracheae (2) ₂, P ₂Act on the diaphragm (3), pass through the power amplification of push-plate (6) then, make conical valve stem (4) and conical valve base (5) mutual action, realization liquid level air pressure is controlled the unlatching of cone valve or is closed.Promptly liquid level H rises to certain altitude (head of liquid P in liquid storage container (1) ₁Certain value) time, P ₁Convert gaseous tension P to by tracheae (2) ₂, acting on the diaphragm (3), this pressure acts on the push-plate (6) through diaphragm (3), and push-plate (6) is with P ₂Conversion zooms into F ₁Try hard to recommend on the mantle valve rod (4) and move, its awl point inserts in the taper hole of conical valve base (5), works as F ₁Power is greater than fluid pressure P in the pipeline (8) ₃Act on the F on conical valve stem (4) the awl point ₂During power, reach the effect that cone valve blocks liquid in the pipeline (8) of closing.Liquid level H drops to certain position (head of liquid P in liquid storage container (1) ₁Be reduced to certain value) time, the gaseous tension P in the tracheae (2) then ₂Reduce, the pressure that acts on the diaphragm (3) reduces, also F ₁Reduce, if fluid pressure P in the pipeline (8) ₃Act on the F on conical valve stem (4) the awl point ₂Power is greater than F ₁Power, then F ₂Try hard to recommend mantle valve rod (4) and move down, open liquid in the cone valve conducting pipeline (8) thereby reach, liquid just injects liquid storage container (1) by delivery pipe (7).

Liquid level is high more in the liquid storage container (1), and promptly H is big more, then P ₁, P ₂Big more, F ₁Power is big more, and cone valve cuts out just reliable more, is filled into anti-overflow effect in the container so can play liquid.

Fig. 2 is a structural representation of the present utility model, also is one of embodiment of the present utility model.It is made up of tracheae (1), lower cover (2), diaphragm (3), push-plate (4), conical valve stem (6), loam cake (5), conical valve base (7), delivery pipe (8).Tracheae (1) is an one with lower cover (2) sealing and fixing, push-plate (4) is fixed as one with conical valve stem (6), conical valve base (7), delivery pipe (8) are one with loam cake (5) sealing and fixing, conical valve stem and push-plate fabricate block insert the interior running-fit assembling of guide hole of loam cake (5), and lower cover (2), diaphragm (3) are one with loam cake fabricate block sealing and fixing.The space that forms between tracheae (1) and the diaphragm (3), after liquid is sealed the tracheae lower port sealing air tight, the space and the extraneous conducting of formation are bar pressure between diaphragm (3) and the loam cake (5).There is the hole more than 1 the loam cake side.Position shown in Figure 2 is a vapour-pressure type liquid switch opening of valves state, and liquid enters in the loam cake (5) by conical valve base (7) hole in the pipeline, flows out by delivery pipe (8) again.When the liquid level in the liquid storage container rises to H, head of liquid P ₁Gaseous tension P by tracheae (1) conversion ₂Act on the diaphragm (3), promote to move on the diaphragm (3), make conical valve stem (6) close conical valve base (7) taper hole through the amplification of push-plate (4) power, promptly close liquid in the pipeline, as long as the liquid level in the liquid storage container does not reduce, cone valve is just kept closed condition.

The utility model can be used for from the beginning water level control, keeps the tank water yield; Also available not timing comes water user's automatic water-storing of water, automatic turning off water or water closet automatically come taps; Also can be used for other such as oils (edible oil, petroleum-type ...) the liquid automatic control switch valve of liquid or the anti-overflow automatic switch valve in when perfusion.

The optimum shape of the utility model loam cake (5), lower cover (2), diaphragm (3), push-plate (4) is the garden plate-like. Diaphragm material is flexible material such as latex, rubber etc., and diaphragm diameter is different with purposes, is generally 40～200 millimeters. Being used for the domestic running water diaphragm diameter is 60～100 millimeters, diaphragm thickness is 0.15～2 millimeter, its optimum thickness is 0.2～0.5 millimeter, and the material of other part is selected plastics such as the metal materials such as ferrous metal, non-ferrous metal according to the difference of circulating liquid medium.

Claims

1, a kind ofly combines with cone valve and the vapour-pressure type liquid switch valve that constitutes, it is characterized in that the liquid level gas pressure regulator is made up of tracheae, lower cover and diaphragm by the liquid level gas pressure regulator; Cone valve is made up of awl dish, conical valve stem, conical valve base, loam cake and delivery pipe; The unlatching of cone valve or to close be head of liquid by liquid level change converts gaseous tension to, acts on flexible diaphragm and the awl dish.

2, vapour-pressure type liquid switch valve according to claim 1 is characterized in that formed space between the tracheae of liquid level gas pressure regulator and the diaphragm, and sealing is air tight after liquid is sealed the tracheae lower port; Formed space and extraneous conducting are bar pressure between diaphragm and the loam cake, are that the loam cake side has the hole more than 1.

3, according to claim 1,2 described vapour-pressure type liquid switch valves, it is characterized in that diaphragm made by flexible material, the diameter of diaphragm is 40～200 millimeters, and the thickness of diaphragm is 0.15～2 millimeter, and its optimum thickness is 0.2～0.5 millimeter.

4, according to claim 1,2 described vapour-pressure type liquid switch valves, it is characterized in that lower cover, diaphragm, awl dish, loam cake are the garden disk shape.

5,, it is characterized in that the material of tracheae, lower cover, awl dish, loam cake, conical valve base, delivery pipe can be with plastics or metal according to claim 1,4 described vapour-pressure type liquid switch valves.