DE2340449A1 - HYDRAULIC FLUSHING TANK WITH AN IMPROVED MOUNTING AND RE-SEALING DEVICE - Google Patents

Description

Dr. ! ng. H. Negendank Dipl. In «. H. Heuck - Dip! Pwys. ^M - Schmitt Dipl. Ing. E. Grsalfs - Dipl. Ing. v /. Wehnert

8 Mäacfcos £. fÄ-jZsrtstraS * 2Ϊ

Telephone 5380586

WATER CONTROL PRODUCTS, INC.

.887 East Maple Road August 8th 1973

Birmingham, Michigan, USA Attorney File iM-2776

Hydraulic rinse tank with an improved attachment and

Reseal device

The field of application of the present invention is in liquid flushing assemblies. "The present invention is particularly related on small, compact water flushing arrangements for quickly draining a quantity of water, such as a pressurized water unit.

Because of the relatively large volume of water that is required to flush conventional gravity toilets, in the last Years of great effort has been made to develop devices that allow gravity toilets to work effectively with reduced ! allow the most amount of water.

A type of device that requires efficient flushing with a fraction of the amount of water used in traditional gravity toilets,

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ORIGINAL INSPECTED

is a hydraulic toilet flushing device.

Hydraulic toilet flushers are very effective in that

i they are rinsed with a relatively small volume of water. can and have operational character that can compete with conventional gravity toilets. These devices are, in fact, a major breakthrough in water closet technology. . ". '-

The present invention is based on a new and improved Aufsetz- and resealer directed for use in hydraulic toilet flushers.

The present invention is a new hydraulic flush tank with an improved put-on and reseal device. The wash tank works in the downward direction by pressing a button. That Device contains a combination of a sealing shut-off member and a spring-loaded valve that is slidable in an opening is recorded in the shut-off member. The valve is connected to the button located outside the tank. When the button is pressed down is, the valve leaves its seated position in the shut-off element and thus opens the shut-off element. When the shut-off member is open, the pressure above the shut-off member decreases, causing the shut-off member to lift and the outlet in the tank to be released causes. The spring strives to put the shut-off member on

to prevent after rinsing the tank and thus leaves some liquid-j

i can flow through the outlet when the tank is filled . This I.

the J

Liquid flow is used for reseal / bowl.

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However, the shut-off member is also designed to respond to the increasing pressure that occurs after the tank has been flushed through the entering liquid was generated. Thus, the closure member acts against the action of the spring-loaded valve during tank filling. Such a counteraction continues until the shut-off member is put in place.

It is accordingly an object of the present invention to provide a new and to create an improved hydraulic toilet.

Another object of the invention is to provide one with a hermetically sealed cylinder connected to the tank for holding an amount of liquid and compressed air, an outlet from Tank through the cylinder and a normally closed valve in the outlet, which is raised by pressing a button can be. ,

Another object of the invention is to provide a hydraulic toilet which can be flushed with the push of a button can.

Further features, details and advantages of the invention result from the following description of an exemplary embodiment with reference to the drawing. It shows:

Fig. 1 is an oblique view of a hydraulic toilet with a tank containing an improved fitting and resealing device according to the invention;

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Fig. 2 is an enlarged partial view partly in Section of the tank of Fig. 1 with the components of the improved placement and sealing device, in the setting at the start of the rinse cycle;

5 shows a view similar to FIG. 2, but with the alignment of the various components of the attachment and resealing at a different time during flushing;

Fig. 4 is a view similar to Fig. 2, but with the orientation of the various components of the fitting and resealing device at a time during the reseal cycle;

FIG. 5 is a view similar to FIG. 2, but with the tank in a sealed and fitted position in readiness for the start of a rinse cycle.

The present invention relates generally to liquids Flushing apparatus and in particular hydraulic toilets.

In Fig. 2, a hermetically sealed container or tank is shown attached to a bowl 12 with a filling tube 14, which is connected via the bottom part of the tank 10. It should be noted that the tank 10 of the present invention is arranged in connection with a toilet bowl 12.

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However, the tank 10 of the present invention can be adapted to be used within or as a conventional toilet tank Replacement for the usual flushing equipment can be arranged.

In Fig. 2 is a check valve assembly. 16 between the Filling pipe 14 and a line 1d connected. Line 14 is connected to a source of pressurized water, such as a typical source of town water with an average ^ jerk, the inden on the order of 2.1 at or more in most cases. The tank 10 can be fitted with a vent tube with a seat its bottom and be provided with a backsciiag ball loosely retained in the lower end part of the tube by a bolt. J Since the details of such a vent pipe are well known in the art, they are not shown in the drawing ' shown. In addition, as described below, the components within a cylinder 38 can act as a check valve take effect, which in this case eliminates the need for the ventilation pipe .;

As also shown in FIG. 2, the upper end of the cylinder is fastened vertically through the tank 10 by means of a thread 40 and sealed. The lower end portion or exit end portion of the cylinder 58 is also sealed in the tank 10.

The improved seat and reseal device of the present invention is contained in cylinder 38 and has a shut-off member 42 which is displaceable within the cylinder. At the bottom portion of the cylinder 38 is a seat 45 educated. The shut-off member 42 forms a hermetic seal

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with the seat 45 when the shut-off member 42 is in the attached Position. Jas shut-off element 42 has a central, axial bore 44 at its upper end and receives a valve stem 46 in a V-displaceable manner. In .Absperrglied 42 are also holes 47, which are in communication with a chamber 49 in the shut-off member 42. In the lower portion of the cylinder 38 are Openings 50 formed, the ϊτη tank 10 contained liquid Allow to flow into the cylinder 38 and through the opening 51 in the bottom thereof when the shut-off member 42 is in a

^! upper position. It should be pointed out that the

Before the start of the rinsing cycle *, the shut-off element 42 is : against the shoulder or a stop that rests the seat 45 on the cylinder 38, see FIG. 5.

At the lower end of the valve stem 46 there is a fill valve 56, which can be placed in a filling valve seat formed in the shut-off member 42. A [

O-ring 60 forms a seal to prevent passage of pressure medium through the shut-off member 42 when the filling valve 56 is in the attached position.

The filling valve stem 46 protrudes through a pressure-dependent membrane 61. The membrane 61 is firmly attached to the valve stem 46, see above that a vertical movement of the valve stem causes a vertical movement of the diaphragm 61 or vice versa. The membrane 61 is slidable on the cylinder by a flexible rubber sleeve 64 38 sealed.

409809/0478

The diaphragm 61 is hermetically sealed to the sleeve 64, which is hermetically sealed to the cylinder 38 to form a hermetically sealed chamber 66. As shown in the drawing, the diaphragm 61 can be in the form of a cap or plate. The function of the diaphragm 61 can, however, be accomplished by a piston. In this regard, it should be pointed out that the function of the membrane 61 is to form a pressure-medium-tight, movable cover on the chamber 6ü. A compression coil spring 48 is arranged within the cylinder 58 and normally pushes the filling valve 56 upwards. The compression coil spring 48 is arranged in the upper end of the cylinder 58 around the valve stem 40 and coaxially with it. The function of the reder 48 is to prevent the shut-off member 42 from engaging after the tank has been flushed. By preventing the shut-off member 42 from being seated immediately after the tank has been rinsed, the spring 48 allows water through the tank outlet for resealing

i the bowl flow. A more detailed explanation

this function of the spring 48 follows below. '

To place the amount of water flowing into the bowl and to reseal the bowl after the tank has been rinsed, the force exerted by the coil spring 48 is adjustable. The adjuster includes a member 65 with screw threads 67, which engages the screw thread 69 on the shaft 46 stands. The screw threads 67 and 69 allow the member 69 to be rotated and thus raised or lowered Member for adjusting the force directed by the spring 48 with respect to the shaft 4ö nac.i <-Φ η. It should be noted that

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BATH ORIGINAL

the limb ό5 a stop or a shoulder. 73 has for Touching and transferring the effects exerted by the upper end of the spring 48 according to the force directed above.

A cylinder 71 is formed in the cylinder 38 for receiving the spring 48 and for providing a firm stop around the spring 48 to allow upward pressure against shoulder 73.

The top linden of the valve stem protruding through the tank 10 has an attached control button 70.

; As stated above, the tank 10 can also be a vent pipe

exhibit. The purpose of the vent tube is to let air into the tank when necessary and to ^{shut off the air supply at the appropriate time during fill cycle 1} to allow the liquid entering the tank to oppose the air in the tank

press j. The vent tube also acts as a check valve to prevent the liquid in bowl 12 from flowing back into the tank when the tank is opened during rinse cycle ¹ .

In one embodiment of the invention, however, the function of a ventilation pipe is advantageously effected by a Return medium channel in valve stem 46. One or more openings 90 in the push button 70 are in connection with the hollow interior of the filling valve stem 46. At the bottom of the filling valve

56 further openings, not shown, are arranged, which also with the hollow interior of the filling valve stem 46 in connection

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stand. Obviously, if the level of the liquid in the tank 10 is higher than the openings 50, the ambient air cannot penetrate into the tank 10. However, when the liquid level in the tank 10 falls below the openings 50, the air enters outside of the tank into the tank and thus fills the vacuum contained therein and supplies the air necessary for the application of pressure the entering liquid is required.

According to FIG. 2, the push button 70 in Direction of the arrow 72 pressed down. The downward movement of the push button 70 is transmitted directly to the filling valve 56 and moves this in the chamber 4b of the shut-off member, as shown uürch the arrow 93, downwards. .-lit the one from his normal fitted position in the end member 62 lowered Valve 56, cf. 5, the water 74 in the chamber 66 flows through the gate as shown by the arrows 95. ; The release of liquid in the chamber 66 causes an Abj drop in pressure in chamber 66. This pressure drop causes

a pressure differential between chamber 66 and the remainder of the tank ι 10. Pressure medium in the tank 10 passes over to equalize the pressure the openings 50 in the cylinder 33 and. practice how through the ι arrow 97 shown, on an edge 96 on the shut-off member 42 a upward pressure, the lifting of the shut-off member 42 in the cylinder 38 in the position shown in FIG causes.

-10-

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If the shut-off element is in the position shown in FIG. 3, so the water in the tank exits therefrom through the tank outlet 51, as shown by the arrows 100, with a large surge due to the pressure within the tank represented by the double-headed arrows 110. When the fluid level falls in the tank, so does the Jruck. Once there is the blocking element 42 is raised and the pressure in the tank 10 is reduced, water naturally enters the tank Ίυ through the filling pipe 14. As other, more recent iiydrauliscne tanks, the tank 10 is designed so that, after flushing, Ues tanks water the; Tank through the outlet 51 leaves much faster than it enters the tank through the filling pipe 14. Due to the pressure reduction in the tank and due to The shut-off element 42 may fall under the force of gravity until it comes into contact with the upper surface of the filling valve 56, cf. Fig. 4. jjas filling valve "strives to remove the shut-off element due to the upward biasing action of the spring 48 upwards too sluggish, see also Fig. 4, The effect of the Fe- ' the 48 prevents the shut-off member 42 from being fully seated on the | Valve seat 45. i) a the shut-off element 42 is not filigree on the seat 45

is put on, after the tank has been rinsed, some liquid enters it, passes through the openings 50 and through the

Outlet 51 at the bottom of cylinder 38 through the tank. This passage of water through the outlet 51 is desirable because he refills and seals the bowl after it has been rinsed. However, some of the liquid entering the tank will flow between the edges 96 and the inner walls of the cylinder 38 and enters the chamber 66. This causes an Oruckauf-

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build in chamber 66. As shown by double-headed arrow 130, the pressure in the chamber 66 presses the membrane 61 away from the shut-off element 42. When the pressure in chamber 66 is equal to or is greater than the upward pressure caused by the spring 48, the shut-off member 42 is seated and the tank is again sealed and ready for flushing, see Fig. 5.

As shown in the drawing, a spring can optionally be provided in the chamber 66, which supports the placement of the shut-off member 42. If the spring 112 is installed in the cylinder, it exerts a downward movement on the shut-off element 42 ^! directed force which is smaller than the upward force exerted by the spring 48 against the filling valve 46.

The principle on which the toilet tank of the present invention relies for its operation is controlled by the fact that the water 74, as indicated by the double-headed arrow 110 shown is under pressure. Since the water in the tank is under pressure, it is actually through the openings 50 and the outlet 51 is pressed as a jolt. The power of the tank 10 pressurized water flowing into the bowl 12 during the rinsing cycle Shock depends on the pressure in the tank, which in turn depends on the pressure of the pressurized water source, which in most cases is in the Of the order of 2.1 at or higher.

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If, as stated above, the water level in tank 10 falls during the flushing cycle, the pressure in tank 10 also falls.

j locking member 42 raises therein. When the pressure and water level j i
fall in the tank 10, the shut-off member 42 is then lowered

^: While the tank is emptying in the manner described above, water naturally enters the tank because the filling pipe 14 is on.

a water source is connected. If the filling tube 14 is connected to an i
Water source connected and the check valve assembly 16 opened to allow water to flow through the pipe 14 into the tank 10, the rising water in the tank hermetically seals the tank, which continues the filling with water against the pressure of the air above the water and thus the equilibrium state shown by Fig. 5 is established.

After the tank has been flushed and before the shut-off member 42

j is fully seated, something occurs over the filling tube 14 into the

Tank 10 enters the chamber 66 and causes a pressure on the shut-off member 42 downward.

: The arrangement in the cylinder 38 is designed so that the liquid flows through the filling pipe 40 into the tank 10 faster than it can exit through the shut-off member 42 lifted from the seat. This arrangement causes a pressure build-up in the chamber 66, which engages the shut-off member 42 and thereby seals the tank. '

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Thus, following the teachings of the present invention, it follows an improved fitting and resealing of hydraulic fluid draining devices.

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Claims (1)

" ^u ' 7340449 Patent attorney Dr. Ing.H. Nefiendan Ing.H. Heüde - Γ! -Ι Pw *. W. Schmitz Telephone 5530580 Water Control Products, Inc. ■ East Maple Road August 8th 19 73 Birmingham, Michigan. United States Attorney File M-2776 Claims .J arrangement for filling a sealed tank with a predetermined Amount of liquid and for quickly draining this liquid for rinsing a container with a Has a pressure fluid source connected tank, a valve cylinder open to the tank and to a discharge opening, a Seat in the cylinder and a valve that cooperates with the seat to close the cylinder opposite the opening, characterized by a reciprocating piston which is dependent on a differential pressure acting on the piston can be moved in the cylinder, with the piston having a passage through it, through a main valve, which operates to open and close the drain port in response to the reciprocating movement of the piston can be, through a manually controlled valve that closes the channel in the piston in a position and due i the actuation in a second position to open the channel j can be actuated to the drain port by means. 409809/0478, ₁₅ _ j ORIGINAL INSPECTED which forms a pressure chamber above the main valve by a throttled device which supplies pressurized fluid to the chamber from the tank to push the piston and main valve into the closed position, the chamber being open to opening when the manually controlled valve is in the second position is moved, whereby the pressure in the tank moves the main valve to an open position in order to connect the liquid in the tank to the drain opening, and through a Means to add air to the tank at the end of drain cycle ¹ leads due to the actuation of the manually controlled valve j into the second position, in which air enters the tank through! } entering liquid is compressed when the j j ι. ! corresponding valves are in the closed positions], ; i j by the discharge pressure above the liquid stored in the tank ! to increase. 2. Arrangement according to claim 2, characterized in that the ; Seat is arranged next to the drain opening at one end of the cylinder, and that the main valve has a valve seat one end of the channel has that with the manually controlled! Valve works together, with a spring on each valve is provided which presses this into a closed position. j3. Arrangement according to claim 1, characterized in that the The throttled device for supplying liquid to the pressure chamber has an intermediate space formed between the main valve and the cylinder in which the main valve is displaceable is. 409809/0 4 78. . -16- " ¹⁶ ". 7340449 4. Arrangement according to claim 1, characterized in that a manually operable shaft from one end of the cylinder protrudes and actuates the manually controlled valve, and that the device for supplying air into the tank in the Has stem formed air channels that lead to the cylinder below the manually controlled valve. 5. Arrangement according to claim 4, characterized in that a membrane for sealing the shaft against the cylinder is used in such a way that there is a mutual Movement is allowed. 409809/0478 Leeward