Constant flow device of fluid switch and fluid switch
A fluid switch and fluid technology, applied in valve devices, lift valves, safety valves, etc., can solve the problems of change in outflow, decrease in outflow, and increase in outflow.
Active Publication Date: 2016-12-14
XIAMEN LOTA INT CO LTD +1
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- Abstract
- Description
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- Application Information
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Problems solved by technology
Its disadvantage is that when there is a change in fluid pressure within a certain range in the supply line connected to the water inlet, this change will still affect the outflow even when the switching valve is kept in a certain switching state, that is, the fluid pressure The outflow increases when the fluid pressure becomes larger, and the outflow decreases when the fluid pressure becomes smaller
This results in a change in the outflow for a constant state of the switching valve
Method used
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[0039]Referring now to the accompanying drawings, the schematic scheme of the constant flow device of the fluid switch and the constant flow spool disclosed in the present invention will be described in detail. Although the drawings are provided to illustrate certain embodiments of the invention, the drawings are not necessarily to scale of particular embodiments and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain aspects of the invention. public content. Some components in the drawings can be adjusted according to actual needs without affecting the technical effect. Appearances of the phrase "in the drawings" or similar terms in the specification do not necessarily refer to all drawings or examples.
[0040] Certain directional terms used hereinafter to describe the drawings, such as "inner," "outer," "above," "below" and other directional terms, are to be understood those directions involved in the drawing. Unless othe...
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The invention relates to a constant flow device of a fluid switch and the fluid switch. The constant flow device comprises a shell and a constant flow valve element, wherein the shell is provided with a fluid inlet portion and a fluid outlet portion, and the constant flow valve element is mounted in the shell and comprises a valve base and a constant flow device; the valve base is provided with an inlet communicated with the fluid inlet portion, an outlet communicated with the fluid outlet portion and an inner cavity; the constant flow device is mounted in the inner cavity and forms a passage enabling the inlet and the outlet to be in fluid communication; the constant flow device is arranged to reduce the section of the passage along with the fluid pressure increasing within the fluid pressure range and increase the section of the passage along with the fluid pressure decreasing within the fluid pressure range, and therefore within the fluid pressure range, the fluid flow on the outlet is kept basically constant. According to the device, outflow is kept constant within the certain fluid pressure change range.
Description
technical field [0001] The invention relates to the technical field of fluid control, in particular to a constant current device for a fluid switch and a fluid switch. Background technique [0002] A fluid switch, such as a faucet, generally has a built-in switching valve to control the outflow of the fluid, such as switching between large and small flow rates. [0003] For example, the Chinese patent whose publication number is CN201666407U and whose publication date is December 8, 2010 discloses a water-saving faucet with a button to switch the water outlet. It is provided with a water body with a large flow hole and a small flow hole. Slidable water diversion body, under the action of return spring, the water diversion body can cover the large flow hole, so as to realize two levels of water volume adjustment. [0004] Another example is that the Chinese patent with the publication number CN2603132 and the publication date being February 11, 2004 discloses a two-speed del...
Claims
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IPC IPC(8): F16K17/20F16K1/52
CPCF16K1/52F16K17/20
Inventor 叶立明周建平白双林
Owner XIAMEN LOTA INT CO LTD