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Dual flush valve

A technology of flushing valve and valve seat, which is applied in the direction of flushing equipment with water tank, water supply device, building, etc., and can solve problems such as incorrect valve installation

Inactive Publication Date: 2015-04-01
道格拉斯‧罗伯特‧戴维‧弗罗斯特
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although most valves generally perform adequately, some valves, for one reason or another, only perform marginally, with the result that in some cases more than one operation of full flush control is sometimes required to effectively clean the bowl ( toilet pan); the most likely cause is due to any of the following: the valve does not fit the unique combination of the cistern and the bowl, incorrect installation of the valve or limited adjustment does not allow the cistern to fill with water The fluid level is set high enough, or the partial flush level of the valve is fixed and at a level too low - especially in horizontal reservoirs

Method used

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Embodiment Construction

[0034] figure 1 and 2 A reservoir outlet / dual flush valve, generally designated 1 , is shown sealed and held in the outlet at the bottom of the reservoir 15 by a seal 3 and nut 4 . The valve is submerged in water to set the filling level 27, the valve is closed by the main seal 5 which seals against the outlet base 2 against the seat 2A located in the lower part of the valve housing, preventing water from coming out of the reservoir. device intrusion. The valve housing 10 has an upper chamber 13 filled with water which can freely communicate with the water in the reservoir through one or more holes 11 and to a lesser extent by the annular passage / slit 9 and the restrictive passage 8 . In the closed position, the main valve assembly 34, including the float and lower hollow stem assembly 6 and upper hollow stem assembly 12, is driven primarily by the weight of the assembly and the marginal net downward force due to hydrostatic pressure on top of the seal 5. downward force), ...

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PUM

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Abstract

A dual flush valve (1) comprises a housing (10) having an outlet (2, 36) and a main valve assembly (34) movable within the housing between a raised position in which the valve is open and a lowered position in which the valve is closed. An operating system (14) is actable in response to an input to raise the main valve assembly (34) off its seat (2A) so that it is subjected to an upwards force by immersion fluid entering the outlet. In response to a first actuation input, the operating system exerts a first downward force on the main valve assembly (34) so that the main valve assembly is caused to descend when the fluid in the cistern reaches a first predetermined intermediate fluid level (31) to provide a partial flush. In response to a second actuation input the operating system exerts a second downward force on the main valve assembly (34) which is lower than the first downward force so that main valve assembly is caused to descend when the fluid in the cistern reaches a second predetermined intermediate fluid level (32) lower than the first intermediate fluid level to provide a full flush.

Description

technical field [0001] The present application relates to a dual flush valve for emptying or partially emptying a water reservoir, with particular but not exclusive application to domestic water closets. Background technique [0002] In order to meet the ever-increasing stringent water-saving and environmental protection needs, double flush valves have become the main means of regulation for household flush toilets, to meet the regulatory needs of reducing the amount of water required for flushing, double flush valves are almost always installed in slender (vertical) in the water reservoir. Although most valves generally perform adequately, some valves, for one reason or another, only perform marginally, with the result that in some cases more than one operation of full flush control is sometimes required to effectively clean the bowl ( toilet pan); the most likely cause is due to any of the following: the valve does not fit the unique combination of the cistern and the bow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03D1/14
CPCE03D1/142
Inventor 道格拉斯·罗伯特·戴维·弗罗斯特
Owner 道格拉斯‧罗伯特‧戴维‧弗罗斯特