首页|Patent Application Titled 'Spiral Water Intake Valve And Fire-Fighting Robot' Pu blished Online (USPTO 20240390717)
Patent Application Titled 'Spiral Water Intake Valve And Fire-Fighting Robot' Pu blished Online (USPTO 20240390717)
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Reporters obtained the following quote from the background information supplied by the inventors:“The water source of existing fire trucks or fire protection d evices usually comes from fire-fighting waterstorage tanks, which have limited water capacity. The applicant filed a patent application with thepublication nu mber CN113404872A on Jul. 21, 2021, titled Track Water Valve. The track water va lveincludes a valve body, and a main valve core is provided in the valve body. It is characterized in that: apilot valve mechanism is provided in the main val ve core; the pilot valve mechanism includes a pilot valve,a pilot base, and a p ilot spring; a water flow channel is provided in the valve body; a water intake channel is provided in the middle of an upper valve cover of the valve body; a p ilot valve is provided in the mainvalve core; the main valve core includes a ma in valve connection stand and a main valve guide stand; anupper end of the valv e connection stand is sealed against a lower end of the upper valve cover; a pil otchannel is provided in the main valve connection stand; a lower end of the ma in valve connection stand isfixedly connected to an upper end of the main valve guide stand; a water inlet hole is provided on an outerwall of the upper end o f the main valve guide stand in a spaced-apart way; a pilot base is provided at alower end of the main valve guide stand; a guide channel is provided in the ma in valve guide stand; thethree channels, i.e., the guide channel, the pilot cha nnel, and the water intake channel are connected; theguide channel is connected with a water flow channel through the water inlet hole; the diameter of the guide channel is larger than the diameter of the pilot channel; the upper end of th e pilot valve extends outof the main valve connection stand and is placed in th e water intake channel; the middle part of the pilotvalve is sealed against and slidably connected to the pilot channel; a lower end of the pilot valve extendsinto the guide channel and is slidingly connected to the guide channel; the out er diameter of an upperend of the pilot valve is smaller than the outer diamete r of the middle part of the pilot valve; the lowerend of the pilot valve is pro vided with a pilot spring; an upper end of the pilot spring abuts a lower endsu rface of the pilot valve; a lower end of the pilot spring abuts the pilot base; the pilot base is fixedlyconnected to the main valve guide stand; after the pil ot valve is pressed, the pilot valve squeezes the pilotspring and moves downwar d, and the water in the water flow channel enters the guide channel and thepilo t channel through the water inlet hole and flows out through the water intake ch annel.
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