CN2227238Y - Gravity automatic protective water valve when water stopped - Google Patents

Abstract

The utility model belongs to mechanical techniques, which adds a control chamber on the basis of the common drain valve. Valve plates and valve ports are arranged in the control chamber, the density of the valve plate is 0.5, and a valve plate is tightly attached with a valve port. The utility model is characterized in that the valve plate drops and seals the valve port under the action of gravity to play the role of protection when water stops; when the water valve is closed, the valve plate is pushed by a soft rod to open the valve port, and the valve plate is maintained upward under the action of buoyancy of water to open the valve port. With the functions, the utility model can carry out automatic protection when water stops and can be opened and closed as the same as the common water valve at ordinary times.

Description

Gravity type is cut off the water and is protected water valve automatically

The utility model relates to gravity type that a kind of tap water supply system the uses protection water valve automatically of cutting off the water, and can cut off the water at tap water supply system, forgets when closing water valve again and closes automatically, the phenomenon of metalling run out of appearance prevent to supply water once more after.

At present, the structure of common discharging valve is by handle, valve rod, and valve body, valve core, little valve body, packing is formed.Handle with sleeve drives valve rod and valve core, and along in little valve body and the valve rod, outside thread moves up and down, and the switching spool discharges water or stops to discharge water.But, cut off the water if meet water system, forget when closing discharging valve that supplying water once more then has the anxiety of metalling run out, and causes the waste of tap water.

The purpose of this utility model provides a kind of automatically protection water valve of cutting off the water, and it can not only be controlled and discharge water and close, and can close automatically when cutting off the water and forget shutoff valve, prevents the phenomenon of metalling run out when tap water supply system supplies water once more.

The purpose of this utility model is achieved in that in valve body (1) and sets into mouth of a river A, active chamber B, and bend pipe C, active chamber D, water outlet E and order are communicated with.Order is installed handle (6), valve rod (7), gland (8), packing (9), little valve body (10), spool (11) in the active chamber D.Order is installed valve port (2) in the active chamber B, and valve block (3, valve gap (4), seal ring (5), its middle valve plate can the easy on and off activity.Push rod (13) one ends are connected in valve core bottom, and the other end stretches into active chamber B by bend pipe and valve port and plane 2～3mm on the push rod the other end protrusion valve port when fasten spool (11).Valve block (3) is that the PVC plate of 0.5g/cm is made by density, and valve block (3) is closely connected water-tight with the surface of contact of valve port (2).During the water system normal water supply, be full of water in the valve body, valve block floats, and gravity type is cut off the water, and the protection water valve is identical with the effect of common discharging valve automatically, can normally discharge water and close; As cut off the water, forget that again when closing water valve with handle, the horizontal plane in the valve body drops to when the plane is following on the valve port, valve block drops on the valve port in action of gravity.Because valve port and valve block surface of contact are closely connected, when water system supplies water once more, certainly lead to pressure reduction between active chamber B and the active chamber D, under the effect of pressure reduction, valve block is pressed on the valve port tightly, cuts off the water route, shields.When needs discharge water once more; can close spool by first rotatable handle, drive push rod simultaneously, water is flowed into from the slit between valve block and the valve port valve block top 2～3mm; valve block is floated, and the gravity type protection water valve of cutting off the water automatically can equally discharge water or cut out with discharging valve again with general.Owing to adopt such scheme, can cut off the water, forget to cut off the water route automatically under the situation of shutoff valve, shield, only put and metal run out.Simple in structure.

Below in conjunction with Fu Tu and embodiment the utility model is further specified:

Fig. 1, Fig. 2, Fig. 3 are respectively the sectional arrangement drawings of three kinds of working staties of a kind of embodiment.

Fig. 1: valve block floats, the spool opening state state that promptly discharges water;

Fig. 2: valve block floats, and the spool closed condition is a closed condition;

Fig. 3: valve block falls, the spool opening state guard mode of promptly cutting off the water.

In the present embodiment, be provided with two parallel active chamber B and D in the valve body (1).Water inlet A, active chamber B, bend pipe C, active chamber D, water outlet E order UNICOM.Active chamber D installs at the place handle (6) in proper order, valve rod (7), and gland (8), packing (9), little valve body (10), spool (11), the function of above part is identical with the function of the corresponding part of common discharging valve.Push rod (13) is the soft bar of a spring, and its end is installed in the spool bottom, and the other end stretches into active chamber B by bend pipe, and its length is controlled at an end that stretches into active chamber when spool is closed and protrudes plane 2～3mm on the valve port.Active chamber B installs at the place valve port (2) in proper order, valve block (3), valve gap (4), seal ring (5).It is closely connected water-tight that valve port and valve block surface of contact are wanted.The density of valve block is 0.53/cm ³, and can easy on and off motion in active chamber B.Cut off the water by the gravity type of present embodiment manufacturing and should make valve rod perpendicular to horizontal plane when automatically the protection water valve is installed on water system.

Claims (3)

1. the gravity type automation protection water valve of cutting off the water is at valve body inner handle, valve rod; the gland packing, little valve body, the spool sequential machine connects; it is characterized in that: set up active chamber B and bend pipe C, and water inlet A, active chamber B; bend pipe C, active chamber D, water outlet E is communicated with in proper order; order is installed valve port in the active chamber B; valve block, seal ring, valve gap.

2. gravity type according to claim 1 is cut off the water and is protected water valve automatically, and it is characterized in that: valve block density is 0.5g/cm ³, and on can be in active chamber B, following translation, the valve block bottom surface is positioned on the water inlet A when arriving upper limit position, drops on the last plane of valve port when arriving the lower position.

3. according to claim 1,2 described gravity type are cut off the water and protected water valve automatically, it is characterized in that: push rod one end is connected the spool bottom, and the other end stretches into active chamber B by valve port, and protrudes plane 2～3mm on the valve port when spool is closed.

Images