FR2766545A1 - Float valve for water cisterns - Google Patents

Abstract

The vertical action of the float (12) due to the rise of the water in a reservoir, acts on a hollow guided plunger (8), to which it is screwed, in order to push a plug (10) fixed to its summit against a valve seat (2) to cut off the water flow coming via a tube (1). The plunger is attached to the tube (1) by a threaded nut (6).

Description

 The present invention makes it possible to limit the level of water in a reservoir to a constant value.

 The limitation of the water level in a tank is currently ensured by models with the shutter guide moving horizontally.

 Some models have a large rod which allows, via the float, to move the shutter guide which is a drawback since at times it happens that this long rod interferes with the hunting mechanism.

 On all models there is separately a shutter guide which moves horizontally, a nozzle on the body for filling the tank and a rod fixed to the float which allows to move the shutter guide, which does not exist on this model that we will discover.

 According to a first characteristic, it comprises an angled body with a slightly milled seat for better closure since the shutter is a valve of conical shape.

 A shutter guide which moves vertically in the center of a nut which holds the shutter guide by screwing on the body.

The shutter guide is a hollow piston which performs three functions:
- first, that of guiding the shutter;
- secondly, it allows the delivery of water to the tank because it is internally hollow;
- thirdly, the float is fixed directly over it using its thread.

 Finally it is provided with a float which allows by the push of the water to move the shutter guide vertically, this float ensures the routing of the water to the tank using a central hole and a filling tube which is an element of the float.

 According to one embodiment: - the shutter guide and the float will be made with a light material.

The accompanying drawings illustrate the invention
Figure 1 shows in section, the device of the invention.

Figure 2 shows the front view of the shutter guide.

Figure 3 shows the top view of the shutter guide.

Figure 4 shows the top view of the float.

 With reference to these drawings, the invention comprises a body (1) which is bent, provided with a seat (2) slightly milled.

 On one end of the body (1) a stop (3), a nut (4) which allows the valve to be fixed in the tank, the seal is ensured by a seal (5).

 On the other end, a second nut (6) which screws onto the body (1), the sealing of which is ensured by an O-ring (7) housed in the nut (6).

 Such nut (6) which is perforated in its center holds the shutter guide (8) by fixing on the body (1), the seal between the shutter guide (8) and the nut (6) is ensured by an O-ring (9) housed in the shutter guide (8).

At the top of the shutter guide (8) there is initially a shutter (10) which is a conical valve, all around there are four holes (16) which allow water to penetrate to the inside the guide
The shutter (8), a bevel cut (11) facilitates the penetration of water inside the shutter guide (8).

 The shutter guide (8) is internally hollow in order to ensure the flow of water to the reservoir by penetration inside the float (12) and via the filling tube (15) which is an element of the float (12).

 The shutter guide (8) is a threaded piston which allows the float (12) to be fixed on top to allow the float (12) by the push of the water to vertically move the shutter guide ( 8).

 The float (12) forms a single element with the filling tube (15), this float (12) is provided with a fixing nut (13) which allows it to be fixed on the guide of the shutter (8) .

 The screwing of the float (12) on the shutter guide (8) also makes it possible to adjust the level of the float (12) so as to have a greater or lesser quantity of water in the tank.

 Above the fixing nut (13) of the float (12) there is a lock nut (14) to block the float (12), it is provided with a small tail for manual tightening.

 The arrangement according to the invention is particularly intended for Wartercloset tanks.

Claims (9)

 1. Float valve making it possible to limit the water level in a tank to a constant value, characterized in that it comprises a body (1) where a nut (6) is fixed which retains the guide for the shutter ( 8) which is internally hollow and threaded, the float (12) is fixed on the shutter guide (8) which houses the shutter (10) at its top using a fixing nut (13) when the water contained in the tank pushes on the float (12), this makes it possible to vertically move the shutter guide (8) which will allow the shutter (10) to close the passage of water to the seat level (2) in the absence of thrust, the water passage remains open.  2. Device according to claim 1 characterized in that the body (1) is bent provided with a seat (2) slightly milled.  3. Device according to claim 2 characterized in that the shutter guide (8) moves vertically, hollow in its center, it allows to convey the water to the tank.  4. Device according to claim 2 or claim 3 characterized in that the holes (16) allow water to penetrate inside the shutter guide (8), a bevel cut (11) facilitates this penetration .  5. Device according to any one of claims 2 or 3 characterized in that the shutter guide (8) is threaded to ensure the attachment of the float (12) over it.  6. Device according to claim 4 characterized in that the shutter (10) is a conical valve which obstructs the passage of water in contact with the seat (2).  7. Device according to claim 5 characterized in that the float (12) is perforated in its center to be penetrated by the guide of the shutter (8).  8. Device according to the preceding claim characterized in that the float (12) and the filling tube (15) form a single element.  9. Device according to claim 6 characterized in that the lock nut blocks the float (12) over its fixing nut (13), it is provided with a small tail for manual tightening.