FLEXIBLE RELEASE COCK WITH DOUBLE TIME DELAY FOR LIQUID

The present invention relates to a tap with flexible operation and dual delay timer for fluid as, for example, for delivering water to plumbing fixtures such as for waterclosets.

In the document FR'S-475,993- is described a flush valve with trigger valve opening main by an auxiliary valve decompression and control the rate of closure of the main valve by an auxiliary channel calibrated.

The document EP 264638- a flush valve opening control with the main valve by an auxiliary valve decompression whose closure is brought about by the rise of the piston carrying the main poppet.

These prior devices do not allow to vary the water volume delivered according to suit the user simply and economically.

Also an object of the present invention is it to provide a fluid valve which is capable of delivering two volumes of fluid, such as water, different by making two different delays during which fluid flows, and this by a simple mechanism controlled by two buttons.

For this purpose, as well as others which will appear later, is achieved by a tap with flexible operation and dual delay timer for fluid as, for example, for delivering water to plumbing fixtures such as for waterclosets, which comprises a mechanism arranged in the valve body provided with a push button having at least two active parts for actuating the valve opening, a delaying chamber bounded by a jacket timing in which slides a piston which carries a valve timing main coming to rest on a seat of the main valve and a double valve arrangement for two different delays of [...], which valve is characterized, according to the present invention, by the fact that it comprises, on the one hand, a pin guide slides axially within which a control rod and the lower part of which contains auxiliary seats said spigot, the lower part of the control rod carrying primary and secondary auxiliary valves, and, on the other hand, two primary and secondary decompression channels that are located in the lower portion of the pole guide upstream of primary and secondary auxiliary seats.

Advantageously, the length of the range of the auxiliary seat primary below the primary valve is less than the range of the secondary auxiliary seat below the secondary valve.

Preferably, the piston timing comprises, in a known manner, a lip seal which effect wiper seal inside the jacket timing and supports a further seal which seals the lower part of the guide rod and obstruct, at a time, at least one pressure relief channels the delaying chamber.

Advantageously, the guide rod is screwed into the head body and enters the chamber timing to thereby vary the position of the top abutment of the piston, thereby changing the timer duration long and allows adjustment by the user of the volume of fluid delivered.

The description which will follow and which does are not limited to, is related to an exemplary embodiment of the present invention and is to be read in front of the figures included, among which:

• the fig. 1 is a longitudinal sectional view of a valve with flexible operation and dual delay timer for fluid according to the present invention, in closed position;
• the fig. 2 is a longitudinal sectional view of the valve according to the fig. 1 in the end position rise short delay;
• the fig. 3 is a longitudinal sectional view of the valve according to the fig. 1 in the end position to raise by long delay;
• the fig. 4 is a longitudinal sectional view of the valve according to the fig. 1 in timing position long being closed;

As well as can be seen in these drawings, a tap with flexible operation and dual delay timer for fluid, according to the present invention, includes, in particular, a body 1, into which is screwed a integrated cartridge 2.

The body 1, of generally cylindrical shape, is provided with an intake 1 has pressurized fluid, such as water supplied from a supply network under pressure, and an outlet 1 b of this fluid. The integrated cartridge 2, itself generally cylindrical, is, in this example embodiment, coaxial with the outlet 1 b of fluid.

The cartridge 2 comprises, on the one hand, a first portion 21 constituting a head body of cylindrical shape screwed into the body 1, and, on the other hand, a second part screwed into the head body 21 and constituting a pole guide 6 of tubular shape. It also includes a push button 3 consisting of two concentric parts in the exemplary embodiment: a pushbutton timing long 4 disposed at the center of a short delay button 5 provided with a return spring 16.

In the body 1 and under the shaft guide 6, there is formed a chamber 11 has timing which is delimited by a jacket 11 which continue the timing head body 21 within the body 1. in this chamber is located a piston 11a delay timer 13 which carries the main poppet 20 of the valve, the piston is guided by the bottom portion of the pole guide 6. the inner wall of the delaying chamber 11a has, in known manner, one or more grooves 11 b. timing of true water inlet to control the timing and rate of closure of the main poppet 20: this piston 13 having known manner at its periphery a lip seal 15 for sealing contact with the liner 11 timing except at the location of the at least one groove (e) 11 b. timing.

The shaft guide 6 is traversed axially by a control rod 12 secured to one end of the knob 4 long delay.

The actuating stem 12 has, below the button 4 long delay, a ring 7 constituting an abutment for the short delay button 5, as will be explained further. Around the actuating stem 12 are arranged two return springs: the first 16 between the bottom of the guide rod 6 and the underside of the short delay button 5, and the second 8 between the bottom of the guide rod 6 and the ring 7.

With the free end of the guide rod 6 is located, as said previously, the timing plunger 13 which can slide along the guide rod 6 in the delaying chamber 11a, and the tightly, between a lower position in which the closing timing of the piston 13 obstructs completely the water inlet 1a under pressure and the water outlet 1b, and a raised position in which the piston timing 13 abuts the bottom 6a, forming a stop, the pole guide 6. timing when the piston 13 is in its lowermost position, its lower end carrying the main poppet valve 20 is supported on the main seat 1 c of this faucet.

Around the guide rod 6 is disposed a third return spring 17 between the piston 13 and the bottom timing 6a of the pole guide 6 to ensure the closing stroke of the piston towards the seat 1 C..

The shaft guide 6 comprises, near its stop 6a, at least one pressure-relief duct secondary 6b for long and at a distance therefrom at least one pressure-relief duct primary 6c for short delay. In its interior the pole guide 6 has two enlargements: the first under the secondary pressure-relief duct 6b constituting the secondary auxiliary seat 6d for long delay, and the second under the primary pressure-relief duct 6c constituting the seat primary auxiliary 6th for short delay. As to the control rod 12, it supports the ancillary valves 9 and 10 primary secondary cooperating respectively with the auxiliary seat and the auxiliary seat 6th primary secondary 6d.

When the valve is in the closed position (fig. 1), the main poppet 20 of the piston timing 13 rests on the main seat 1 c of the faucet: the water outlet 1 b is obstructed, the decompression channels 6c primary and secondary 6b are closed and all return springs 8 of the control rod, 17 of the piston 13 and 16 of the timing short delay button 5 are in position of maximum length at rest. Water pressure is present on both sides of the seal 15 carried by the piston 13 through one or more grooves 11 b. timing, the return spring 17 of the piston 13 pushes the piston timing 13 such that the main valve 20 is held against the main seat 1 c of the faucet.

When a user presses the button 5 short delay, the latter comes, first, with the abutment 7 by compressing its return spring 16. Then, the control knob timing short 5 comes to rest on the top 6f the pole guide 6, thereby causing a limited movement of the control rod 12: primary ancillary valve 9 leaving the seat 6a primary auxiliary primary decompression releases the channel 6c dropping the pressure in the delaying chamber 11a, causing the rise of the piston timing 13 pushed upwards by the pressure of the water supply network on its underside: the delaying chamber then starts to empty by the primary pressure-relief duct 6c.

In position end of rise of the piston in position short delay (fig. 2), the release of the primary pressure-relief duct 6c allows the delaying chamber 11a becoming empty until the piston 13 obstructs the same channel 6c. In this example embodiment, the clogging is accomplished by a seal 14 which is inserted in the piston 13 timing and which slides on the shaft guide 6. this obstruction stops the emptying of the decompression chamber 11a thus stopping the movement of the piston 13 whose rising timing has released the main seat of the valve 1c 20 allowing the fluid to flow to the output of b 1.

Upon releasing the pressure on the button 5 short delay, the control rod 12 ascends and the primary auxiliary valve 9 returns to its place in the auxiliary seat thereby closing the 6th pressure-relief duct primary 6c; the delaying chamber 11 then starts to fill slowly by the groove 11 B because delay timing the plunger 13 is pulled downward by its return spring 17 until it comes to obstruct the main seat 1 c by its valve 20 and, therefore, stop fluid flow.

If the user presses the button 4 long delay (fig. 3), it causes a displacement of the stop 7 and therefore of the control rod 12 is then connected: the ancillary valves 9 and 10 primary secondary leave both their respective auxiliary seats, and the delaying chamber 11a may then be emptied by the two channels of decompression for primary and secondary short delay for long delay 6c 6d initially, then only the secondary decompression timing when the piston 6b has obstructed the channel 13 primary decompression 6c in its ascent.

In position end of rise of the piston 13 in position timing long delay, the time delay chamber 11a has emptied until the piston 13 abuts with its face 18a on the bottom 6a of the pole guide 6; the rise of the piston 1c has released the main seat of the valve 20 allows fluid to flow to the output of b 1.

Releasing the button 4 allows the control rod 12 from rising and to check valves 9 and 10 secondary primary auxiliary resume their places in their respective auxiliary seats 6th 6d in primary and secondary channel-closing secondary and primary decompression 6b 6c; the delaying chamber 11a then starts to fill slowly by timing its groove 11 B because the piston timing 13 is pushed, by its return spring 17, toward the main seat 1 c of the faucet.

The fig. 4 is a longitudinal sectional view of a valve according to the present invention in position long delay in execution, the delaying chamber 11a continued to mount slowly by its or its grooves 11 b. timing, because the piston timing 13 is always urged toward the seat 1 c by its return spring 17 still allowing the piston to move downward until the tip 13 timing obstructing the 1c by its valve seat 20 and thereby block fluid flow.