DE3006204A1 - Water conserving toilet flush system - uses ring-shaped control device between relief valve and cover to shorten cycle - Google Patents

Abstract

The water control (60) is positioned between the relief valve (32) and the internal cover (46). The device limits the height to which the relief valve (32) can rise or tile off its seat (42) actuated by the plunger (38). This serves to shorten the flush cycle and greatly reduces the total volume of water flow through the main valve during flushing. The water control is ring shaped and is preferably made of a suitable plastic material. The control device is provided with spoke-like projections about its entire periphery and a series of V-shaped notches between the spokes. This construction ensures proper water flow into an upper chamber when the relief valve is tilted off its seat.

Description

Hamburg, February 14, 1980 234580

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Applicant:

1 . Louis E. Govaer 27848 Ormond Street Hayuard, CaI. 94544 U.S.A.

2. James Eduard Hobbs 1915 Foxsualloui Circle Pleasanton, CaI.94566 U.S.A.

Water flush valve

The invention relates to a control device for water flushing valves, in particular for flushing valves, those used in UC flushing equipment are, especially in the well-known Sloan flushing x / entilen.

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The steadily increasing consumption of water in the last few years has led to a shortage of supplies in areas with particularly little rainfall, so that local authorities have been forced to ration the water consumption in order to manage the limited supplies. So is in American arid regions, z. For example, in many communities in northern California, the amount of water available per household per day has been limited to 150-190 liters. High fines were imposed for additional consumption, and the water supply was even switched off in the event of repetitions. This has forced consumers to make drastic restrictions. Since 45 % of the water consumption outside of industrial consumption is used for flushing toilets, with an average of 19 to 27 liters of water being required for one flush, appropriate attention has been paid to the potential for savings in this area. For toilets connected to containers one has therefore used displacement devices such. B. Containers filled with stones, etc.

The public facilities in commercial buildings, hotels, schools, Hospitals, etc., on the other hand, cannot take advantage of these simple savings opportunities. Because of the need with such facilities for perfectly hygienic

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It seems difficult to provide circumstances here Limit consumption in the event of supply difficulties. The invention therefore aims to provide a device with which the flushing process is shortened and thus the amount of water required for flushing is limited can, especially for toilets with Sloan flush valves or similar valves. This object is achieved by a flush valve according to patent claim solved. Refinements of the invention are characterized in the subclaims.

A flush valve equipped according to the invention enables Significantly reduce the amount of uassar required per flush. The device according to the invention is characterized is further characterized by a relatively simple construction, is cheap to manufacture and works for a long time perfect.

Further advantages and features of the invention result from the claims and the following description as well as of the drawing in which the invention is explained and illustrated, for example. Show it:

Fig. 1 shows a cross section through a designed according to the invention Flush valve,

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Figure 2 is an exploded perspective view the invention and its essential parts in relation to the remaining parts of the flushing device,

3 shows a diagrammatic view of an embodiment of a control device to be used for the flushing valve and

FIG. 4 shows a representation of a modified one corresponding to FIG. 3 Embodiment.

The flushing valve shown in FIG. 1 is known per se and is therefore only explained in the same way as it was for Understanding the invention is required. The flushing valve has a Ciessing housing 10 which is provided with a UassereinlaßanschluQ 12 and an outlet 14 is formed, between which an inner, vertical bush 16 is located. Of the The upper edge portion of the socket 16 then forms an annular main valve seat 18. The main valve member consists of a pliable, circular rubber diaphragm 20 with a Valve seat part 22 on the underside; the membrane 20 is on the upper end of a cylindrical guide element clamped on, made of a plastic material, in particular is made of an ASS plastic and extends in the socket 16 downwards. The membrane 20 has

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a central opening 26 through the dia aina clamping disc with a section 3U extends therethrough, is in the guide element 24 is screwed in and thus firmly clamps the membrane 20 between the disk 2B and the guide element 24. Certain other details of the membrane 20 are preferably according to US patent IMr. 3 656 499 executed. A relief valve 32, preferably one Made of polyacebal plastic, or POM, sits on top of the Clamping disk 28 and has a downwardly projecting actuating shaft 34, which can be seen through the fiembran opening 20 and extends downward within the guide element 24. The lower end 36 of the shaft 34 can also be made of polyacetal plastic be made and is arranged so that it faces the actuating piston 38, which means Handle 40 can be pushed inward to open the relief valve 32 to tilt from its seat 42 over the opening 26 and thus the actuation of the flush valve initiate.

The valve housing 10 is provided with an outer hood 44 and an inner hood 46, and the inner hood is preferably molded from AüS plastic. The outer hood is screwed onto the upper end of the housing 10 and formed with a shoulder 48 which engages the outer peripheral edge of the inner hood 46 and thisB

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down against the thickened B edge 50 of the membrane 20 presses in order to clamp the diaphragm firmly in the valve housing at its periphery.

During the usual actuation of the flushing valve described, the above and below the membrane 20 are present Water pressures are balanced by the small transfer opening 52 and since the pressure surface above the membrane in of the chamber 54 is larger than that under the membrane in the chamber 56, the membrane uird firmly against the valve seat 18 held and thus interrupts the flow of water from the inlet 12 to the outlet 14. If now the piston is pressed inward by means of the handle 40 and touches the shaft 36, the relief valve 32 is disengaged from it Seat 42 tilted. This increases the pressure above the membrane in of the chamber 54 down through the central opening 26 of the Membrane and the outlet 14 relieved. The water pressure from inlet 12 can now be so ineffective that the membrane bent and lifted from its seat 18 uird. So that can the water over the upper end of the socket 16 to the outlet 14, through the valve and into the manifold fitting of the toilet.

The lower end 36 of the shaft 34 allows the relief valve 32 to close on its seat 42, uenn the handle 40 in the actuated position for an excessively long time

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is held. Uenn the relief valve back on his Is seated, the upper chamber 54 gradually fills with water through the passage 52 until the inlet pressure is reached. This increases the duration of the flushing process and determines the amount of water that will pass through the valve until the membrane 20 is back on its Headquarters is 18 and thus blocks the flow of water.

A means 60 for controlling the water is between the Relief valve 32 and the inner hood 46 arranged. The control means 60 limits the height up to which the Relief valve 32 can be raised or tilted from its seat 42 when actuated by plunger 38 will. This shortens the rinse cycle and the total amount of water that the Main valve flows, significantly reduced.

The water control means 60 is generally annular and preferably made of a plastic material. Plastic is preferred for the manufacture of the control means 60 in order to be a stable element under all conditions to create that corrosion-free and resistant against wear and tear, counteracts the settling of foreign bodies on its surface and, ultimately, economical and can be easily manufactured. All these properties make the control device particularly suitable.

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net for the use provided here.

In the embodiment according to FIGS. 2 and 3, the ring-shaped Control device 60 on its entire circumference with spoke-like Uprüngon 62 and a number of general \ / - shaped incisions 64 between the spokes educated. This shape ensures the flow of water into the upper chamber 54 when the relief valve 32 is tilted from its seat 42. A number of disc-like Buttons 66 are provided on the top of the ring 60 near the inner periphery. Wear these buttons helps that the ring 6G does not get between the inner Hood 46 and. the relief valve 32 sets or there is pinched. Inner struts 68 can be provided to give the device 60 additional strength to rent.

The height of the buttons 66 is to be selected based on the water pressure. Unless the water pressure is at its full strength, z. B. on the upper floors of tall buildings, the buttons 66 can be slightly shorter. The superfluous height there Knob 66 can be cut or ground off accordingly.

In the embodiment according to FIG. 4, there is an outer circumference

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of the annular control device 70 consists of a series of smooth, projecting arcs 72, each having an opening 74, through which water can easily flow into. The upper chamber 54, usnn the relief valve 32 from its Seat 42 is tilted. The smooth, rounded edges 76 of the Uögen 72 prevent the ring 70 from seizing or wedged between the inner hood 46 and the relief valve 32. Inner support members 78 may be provided, to provide additional strength to element 70.

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Claims (7)

Expectations ί 1 ./ Flushing valve, especially for UC flushing devices, with an inflow and outflow nozzle and an essentially vertical socket arranged in between, the upper edge of which forms a valve seat for the surrounding section of a central opening in a flexible membrane, above which a pressure chamber and from which a hollow cylindrical guide element protrudes downward through the bushing, and an auxiliary valve sits above the opening, which is provided with an actuating shaft protruding through the guide element, which can be actuated by means of an external handle to relieve the closing pressure of the diaphragm, which is thereby lifts off the valve seat and clears the way to smell inflow and outflow nozzles, characterized by means (60; 70) arranged on the auxiliary valve (32) in the pressure chamber for limiting the opening time of the auxiliary valve. 2. Valve according to claim 1, characterized by one arranged directly on the auxiliary valve (32), annular insert (60; 70) for reducing the lift height of the auxiliary valve. 3. Valve according to claim 2, characterized in that the annular insert with projections on its periphery - 11 - 130034/0629 BATH 300620 « (62; 72) and passages (64; 74) is formed. 4. Valve according to claim 2 or 3, characterized in that that the annular insert (60; 70) on that of the cover (46) of the upper side facing the pressure chamber on its inner circumference with a row of humps (66) is trained. 5. Valve according to claim 4, characterized in that the cusps (66) are essentially solid / cylindrical, 6. Valve according to claim 4 or 5, characterized in that the humps (66) from a machinable with hand tools Material are made. 7. Valve according to one of claims 2 to 6, characterized in that that the annular insert (60; 70) is formed with inner Verstrebunn.selementen (68; 78). 130034/0629