OA18180A - Tank filling valve - Google Patents

Abstract

The invention relates to a filling valve (1) of a toilet flushing tank comprising, (i) a body (2) in which is formed a chamber (3), connected to a water inlet pipe ( 4) and to a filling tube (7) of a flushing tank in which an opening (35) forming an air intake is made, (ii) a reservoir (30) arranged opposite the opening (35 ) designed to be filled during the passage of water until the opening (35) is submerged and to be emptied and release the opening (35) when the filling valve is closed.

Description

TANK FILLING TAP

The present invention relates to a valve for filling a toilet flushing tank comprising a valve body, a regulatory air intake and a filling nozzle cooperating with a shutter.

The filling valves of a flushing tank generally operate by a float control such that the movement of the float at the end of filling controls a push button applying the shutter against one end of the filling pipe, thus interrupting the flow of water.

In the event of accidental depression in the water supply network, the water contained in a toilet tank may be sucked in, which could then join the water supply network.

To prevent this phenomenon, the health regulations related to toilet devices require the presence of an air intake so that a depression that would occur in the food network does not cause suction of the water present in a toilet tank.

However, it turns out that, when filling the tank, the air intake can generate a whistling sound which presents a great inconvenience to the users.

Certain devices aim to remedy this drawback by providing a system for mechanically closing the air intake when the reservoir is filled.

However, this mechanical closure system, made up of several parts, consequently increases the total cost of the filling valve in which it is incorporated.

In this context, an object of the present invention is to provide a faucet for filling a toilet flushing tank which allows the regulatory air intake to be closed, using a reduced number of parts, compared to the devices. of the prior art.

According to a general definition, the invention relates to a valve for filling a toilet flushing tank which comprises, (i) a body in which is formed a chamber, connected to a water inlet tube and to a tube for filling a flushing tank in which an opening forming an air intake is made, (ii) a tank (30) arranged opposite the opening (35) designed to be filled during the passage of water until the opening (35) is submerged and to be emptied and release the opening (35) when closing the filling valve.

The positioning of the opening forming an air intake, in a reservoir communicating with the filling tube, allows the control valve according to the invention to close the air intake using a reduced number of parts. Indeed, this technical arrangement allows the hydraulic closing of the air intake, by immersing the opening positioned in the reservoir.

In fact, the opening, present between the filling tube and the reservoir, allows the water circulating in the filling tube to enter the reservoir in order to fill it and immerse the bore forming the air intake.

This is an important point of the invention. The use of a reservoir, filled when the control valve is opened, allows the device according to the invention to use a small number of parts to close the opening forming an air intake.

In addition, the valve comprises a housing engaged on the filling tube, the housing having an annular portion which delimits the reservoir with the filling tube, and a tubular portion which plunges into the toilet flushing tank.

The annular part of the casing defines with the body an overflow through which the excess water escapes from the reservoir.

The overflow advantageously allows the excess water from the tank to escape to the flushing tank, and forms an air intake with the outside atmosphere.

Thus, the tank according to the invention is not very bulky and has a reduced size.

According to a preferred embodiment, the filling tube has at least one bevel, or a similar shape, positioned near the opening. The bevel is designed to orient a portion of the liquid flowing through the fill tube, through the opening, into the reservoir.

In addition, the filling tube may include at least one oblique surface with respect to the longitudinal axis of the filling tube, designed to brake the liquid flowing in the filling tube.

The oblique surface helps reduce the flow of liquid flowing through the filling tube to facilitate filling the reservoir.

Other characteristics and advantages will emerge from the description which will follow with reference to the appended drawings which represent, by way of non-limiting example, an embodiment of the invention, in which:

Figure 1 is a perspective view of the valve according to the invention;

FIG. 2 is a front sectional view of the valve according to the invention, when the shutter is in the open position;

- Figure 3 is a sectional C-C side view of the valve according to the invention, when the shutter is in the open position;

FIG. 1 shows a control valve 1 for filling a flush tank.

The filling valve 1 is designed to be positioned in a flushing tank of a toilet device to control the filling of said flushing tank.

In addition, the toilet device further comprises emptying means, possibly in two positions, which allow emptying the contents of the flushing tank into a bowl. The function of the filling valve 1 is to control the filling of the flushing tank, until it stops.

For this, the filling valve 1 comprises a body 2 which has a water inlet pipe 4. The water inlet pipe 4 is intended to be connected to a water network, to supply the water tap. water control 1. In addition, a housing 6 partially covers the body 2.

In addition, the filling valve 1 comprises a control mechanism whose function is to control the opening and closing of the filling valve 1, depending on the water level present in the flushing tank.

According to the embodiment presented here, the control mechanism comprises a float 20 connected to a first end of a lever 8.

The float 20 is fixed to the lever 8 by means of an adjustment screw 21, as illustrated in FIG. 1. The rotation of the adjustment screw 21 makes it possible to adjust the height of the float 20 in a flushing tank,

In the example shown, the housing 6 has a tubular part 6b on which the float 20 slides. The tubular part 6b of the housing 6 thus performs a function of guide in translation of the float 20.

The lever 8 has a second end which forms a cam 9.

The cam 9 is rotatably linked to a yoke 10 fixed to the body 2.

Thus, the control mechanism presented here is of the hydraulic type, however, the filling valve 1 can include other types of control mechanisms, such as for example a mechanism of the mechanical type.

Reference may be made to Figure 2, which is a sectional view of the valve, to assess the operation of the control valve 1.

The body 2 schematically presents a water inlet tube 4, a chamber 3 and a filling tube 7.

The filling tube 7 allows the water coming from the water inlet tube to be introduced into the lower part of a flushing tank in order to avoid the noises associated with the flow of water under pressure.

According to the embodiment presented here, a shutter 27 is positioned in the chamber 3. The shutter 27 is controlled with the cam 9 of the lever 8. The shutter 27 comprises a head 28 which has a conical needle to center the head 28. relative to the filling tube 7. The head 28 is intended to close off an upper end of the filling tube to prevent the flow of water into the filling tube 7.

As shown in Figure 2, the filling valve 1 comprises a reservoir 30.

In the example shown, the reservoir 30 is delimited by the casing 6 and 15 by the body 2.

For this, the housing 6 has an annular wall 6a. Thus, the engagement of the housing 6 on the filling tube 7 makes it possible to form the reservoir 30.

It should be noted that the reservoir 30 formed by the annular wall 6a is not sealed. Indeed, the reservoir 30 is provided with an overflow 39 and an emptying orifice 41

An orifice 40 opens to the outside of the filling valve 1, in the flushing tank, to form an air intake with the external atmosphere of the filling valve 1.

In addition, the overflow 39 allows the excess water in the tank 30 to escape into the flushing tank.

As can be seen in Figure 3, provision is made for the reservoir 30 to be placed in communication with the filling tube 7. The filling tube 7 has an opening 35 which opens into the reservoir 30.

The opening 35 opens near a lower part of the annular wall 6a.

A portion of the opening 35 is delimited by a bevel 36.

The bevel 36 is designed to direct part of the flow of liquid which passes through the filling tube 7, towards the reservoir 30.

As shown in Figure 3, a lower end of the filling tube 7 has an oblique surface 37 with respect to a longitudinal axis A of the filling tube 7.

The operation of the filling valve 1 is as follows.

It is specified that the description which follows starts from a situation in which the control valve 1 is open and positioned in a flushing tank of a toilet device.

In the open position, the shutter 27 allows a fluid to flow through the filling tube 7.

The water from the water inlet tube 4 fills the chamber 3 and enters the filling tube 7 to be then discharged into the flushing tank.

When the water flows through the filling tube 7, the oblique surface 37 reduces the flow rate of the water flowing through the filling tube 7.

In addition, the bevel 36 makes it possible to orient part of the water, slowed down by the oblique surface 37, through the opening 35, in the tank 30.

The water thus oriented, by the bevel 36, fills the reservoir 30.

This is an important point of the invention. In fact, the immersion of the reservoir 30 during the filling of the flushing tank makes it possible to hydraulically close the air intake and thus makes it possible to dispense with the costly, and bulky, mechanical closing mechanisms of the prior art. .

If the reservoir 30 is overfilled, the excess water escapes through the overflow 39, into the flushing tank.

According to the embodiment presented here, as the flushing tank is filled, the float 20 slides along the housing 6 and exerts a force on the lever 8. Under the pressure of the float 20, the lever 8 pivots in the yoke 10. By pivoting, the cam 9 of the lever 8Then move the shutter 27 to the closed position in which it closes the filling tube 7.

Closing the shutter 27 stops the flow of water in the filling tube 7.

After closing the filling valve, the position of the opening 35, close to a lower part of the annular wall 6a, allows emptying of the reservoir 30, in the absence of a flow of a fluid in the tube. filling 7.

Thus, when the control valve 1 is closed, the reservoir 30 empties into the filling tube 7 through the emptying orifice 41.

Emptying the tank 30 allows the air intake to open.

The filling valve according to the invention therefore offers the advantage of using a reservoir whose filling, when the filling valve is opened, makes it possible to hydraulically close the air intake. The invention can thus provide an inexpensive filling valve which makes it possible to avoid any outside air suction phenomenon during filling of the flushing tank.

In addition, the emptying of the tank, when the filling valve is closed, allows the opening of the air intake which is designed to avoid any back-siphoning phenomenon in the event of shutter failure combined with a vacuum. of the water inlet tubing.

As goes without saying, the invention is not limited to the sole embodiment described above by way of example. On the contrary, it embraces all variant embodiments.

Claims (5)

1. Filling valve (1) of a toilet flushing tank comprising, (i) a body (2) in which is formed a chamber (3), connected to a water inlet tube (4) and to a filling tube (7) of a flushing tank in which is made an opening (35) forming an air intake, (ii) a reservoir (30) arranged opposite the opening (35) designed to be filled during the passage of water until the opening (35) is submerged and to be emptied and release the opening (35) when the filling valve (1) is closed, 2. Filling valve (1) according to claim 1, characterized in that the valve (1) comprises a housing (6) engaged on the filling tube (7), the housing (6) having an annular part (6a) delimiting the tank (30) with the filling tube (7), and a tubular part (6b) immersed in the toilet flushing tank. 3. Filling valve (1) according to claim 2, characterized in that the annular part (6a) of the housing (6) defines with the body (2) an overflow (39) through which the excess water escapes from the tank (30). 4. Filling valve (1) according to claims 1 and 2 characterized in that the filling tube (7) has at least one bevel (36) positioned near the opening (35), and designed to orient a portion of the liquid circulating in the filling tube (7), through the opening (35), in the reservoir (30). 5. Filling valve (1) according to one of claims 1 to 4 characterized in that the filling tube (7) comprises at least one oblique surface (37) relative to the longitudinal axis (A) of the tube. filling (7), designed to brake the liquid circulating in the filling tube (7).