EP2804994A1

EP2804994A1 - Flush tank

Info

Publication number: EP2804994A1
Application number: EP13706725.2A
Authority: EP
Inventors: Ales Rajster
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-16
Filing date: 2013-01-10
Publication date: 2014-11-26
Also published as: SI23973A; WO2013108156A1

Abstract

The present invention refers to a flush tank, particularly to a pressurized flush water tank preferably used with the toilet devices, comprising a water inlet with an inlet valve and an actuating mechanism to activate flushing. A flush tank according to the present invention comprises a pressurized container (1) for flushing water formed with a cylindrical discharge projection (2) into which a first end of a discharge tube (4) is inserted with a relatively press fit to discharge the flushing water from said container (1). At the location of the connection with said discharge projection (2) said discharge tube (4) is formed with a radially extending flange (5) pressed by means of a nut (6) against the front side of said projection (2). A blocking element (13) with a float (14) is arranged inside said discharge tube (4), said blocking element (13) in the closed position thereof abuts in a leak-proof manner via a second seal (15) on a sealing seat (16) of said discharge tube (4).

Description

Flush tank

The present invention refers to a flush tank, particularly to a pressurized flush water tank preferably used with the toilet devices, comprising a water inlet with an inlet valve and an actuating mechanism to activate flushing.

Flush tanks used with the toilet devices are well known and can generally be divided to two groups, either gravity flush tanks or pressurized flush tanks. Said gravity flush tank comprises a relatively large reservoir of flush water, a water inlet, an inlet valve and an actuating mechanism to activate flushing. Mostly, said actuating mechanism is formed in a manner to enable releasing different amounts of water out of the reservoir. A drawback of said gravity flush tanks is a relatively high water consumption during flushing, and a relatively low pressure of the flushing water resulting in a water flow caused by the gravity. Therefore, the toilet device is not cleaned sufficiently. Said pressurized flush tank comprises only a flushing tube connected directly to a water source, usually to an in-house water supply system. In order to block the flushing and, respectively, to activate the flushing a check valve and, respectively, an actuating mechanism is arranged between said flushing tube and said water source. Also said pressurized flush tanks feature a relatively high and uncontrolled water consumption during flushing.

It is the object of the present invention to create a cap of a liquid dispenser which remedies disadvantages of the know solution.

According to the present invention, the object as set above is solved by characteristics of the characterising clause of claim 1. It is provided for, according to the present invention, that a flush tank comprises a pressurized container for flushing water formed with a cylindrical discharge projection into which a first end of a discharge tube is inserted with a relatively press fit to discharge the flushing water from said container. At the location of the connection with said discharge projection said discharge tube is formed with a radially extending flange pressed by means of a nut against the front side of said projection. A blocking element with a float is arranged inside said discharge tube, said blocking element in the closed position thereof abuts in a leak-proof manner via a second seal on a sealing seat of said discharge tube. The invention is further described in detail on the basis of the preferred embodiment, and with a reference to the accompanying drawing, showing a cross-sectional view in a vertical plane of a flush tank according to the invention.

A flush tank according to the present invention comprises a flushing water container, preferably a pressurized container 1 of flushing water which is formed at the side facing a toilet device (not shown) with a cylindrical discharge projection 2 having an external thread 3. In order to discharge flushing water out of said container 1, a first end of a discharge tube 4 is inserted with a relatively press fit into said discharge projection 2, whereas a second end of said discharge tube 4 is connected to said toilet device (not shown). At the location of the connection with said projection 2 said tube 4 is formed with a radially extending flange 5 which is pressed by means of a nut 6 and via a first seal 7 against the front side of said projection 2. Said nut 6 is formed with an internal thread 8 mating with said external thread 3 of the projection 2. Furthermore, said nut 6 is formed with a web 9 which, in essence, cooperates with said flange 5, said web 9 extending radially inwards over the entire circumference of said nut.

Said discharge tube 4 is formed preferably at the side usually facing a user with an elongated bulge 10 comprising mutually spaced threaded projections 11, 12. Inside said tube 4 there is arranged a blocking element 13 with a float 14, said blocking element 13 in the closed position thereof abuts leak-proof via a second seal 15 on a sealing seat 16 of said discharge tube 4. Said flange 5 is formed at its end located in said projection 2 with a stop 17 determining the height to which the blocking element 13 and, respectively, the float 14 is allowed to rise from the sealing seat 16.

In the present embodiment, said threaded projection 11 is formed with a coaxially extending hole 18 being fluidly coupled with an additional hole 19 extending in said bulge 10 in longitudinal direction of said tube 4. Said holes 18, 19 extend entirely inside a wall of said tube 4 and are intended to supply flushing water from the water supply system into said container 1. In front of said first threaded projection 11 is optionally arranged a blocking device such as a check valve. In the present embodiment, the second threaded projection 12 is formed with a coaxially extending through-hole 20 connecting the inside of said tube 4 in the area below said blocking element 13 and the surrounding of the flush tank according to the invention. Said through-hole is intended for incorporation of a actuating mechanism known per se and thus not shown, which moves said blocking element 13 vertically and, thus, triggers a discharge of the flushing water out of the container 1.

It is provided for according to the embodiment of the present invention that said blocking element 13 resembles the form of a disc with a stem. Said disc abuts in a leak-proof manner on said sealing seat 16 of said tube 4, whereas said stem can be acted upon by means of said actuating mechanism (not shown). It is possible, however, that said blocking element 13 is formed in a different manner, such as a sphere for instance which cooperates with said sealing seatl6, and similar.

Flushing water is supplied from the water supply system into said container 1 via holes 18, 19 under the same pressure as it is in a water supply system, typically between 2 and 2,5 bar. As a result of the increasing water level in the container 1, the air trapped therein is compressed in the area below the top of the container 1. When the container 1 is filled with the required quantity of the water, typically between 2, 5 in 3 dm³, the air trapped therein is ultimately compressed below the top of the container 1 under the same pressure as the water in said water supply system. When a user shifts the blocking element 13 from the sealing seat 16 by means of the actuating mechanism, the air which is compressed in the container 1 presses the flushing water with a relatively high pressure out of the container 1 and into the toilet device, thus, completely cleaning the toilet device and flushing the content thereof.

Claims

A flush tank, particularly a pressurized flush water tank preferably used with the toilet devices, comprising a water inlet with an inlet valve and an actuating mechanism to activate flushing, characterized in that that it comprises a pressurized container (1) for flushing water formed with a cylindrical discharge projection (2) into which a first end of a discharge tube (4) is inserted with a relatively press fit to discharge the flushing water from said container (1), said discharge tube (4) being formed at the location of the connection with said discharge projection (2) with a radially extending flange (5) pressed by means of a nut (6) against the front side of said projection (2), and a blocking element (13) with a float (14) being arranged inside said discharge tube (4), said blocking element (13) in the closed position thereof abuts in a leak-proof manner via a second seal (15) on a sealing seat (16) of said discharge tube (4).

A flush tank according to claim 1, characterized in that said tube (4) is formed with a hole (18, 19) in order to supply flushing water into said container (1).

A flush tank according to claim 1, characterized in that said flange (5) is formed at the end thereof located in said projection (2) with a stop (17) for the blocking element (13).

4. A flush tank according to claim 1, characterized in that the joint between said projection (2) and said nut (6) is a threaded joint.