Automatic flow control switch

Abstract

The invention provides an automatic flow control switch, and belongs to the technical field of flow control equipment. The automatic flow control switch can be used for solving the problems that the existing sprayer can not control the ejective liquid quantitatively. The switch comprises a valve body which is internally provided with a valve cavity, wherein the two ends of the valve body are provided with a water inlet pipeline and a water outlet pipeline, the upper part of the valve body is provided with a water storage chamber, and the water inlet and water outlet of the valve cavity are respectively communicated with the water storage chamber and the water outlet pipeline; the valve cavity is internally provided with a valve rod which can penetrate through the valve cavity in a penetrating manner, the outer end of the valve rod outward extends to the exterior of the valve body, and the inner end of the valve rod is closed or the water outlet is opened through regulating the axial position of the valve rod; an elastic structure is arranged between the outer end of the valve rod and the valve body and can cause the valve rod to generate an outward moving trend along the self axial direction; and the outer side face of the valve body is articulated with a spanner, the inner side face of the spanner and the outer end face of the valve rod are mutually offset, and the spanner is capable of driving the valve rod to do an inward movement along the self axial direction under the exogenic action. The switch provided by the invention has the advantages of controlling the ejective liquid quantitatively manner and the like.

Description

technical field [0001] The invention belongs to the technical field of flow control equipment, and relates to an automatic flow control switch. Background technique [0002] Crops, flowers and plants generally need to be sprayed with pesticides or clean water, and some spraying devices need to be used. General spraying devices include sprayers and sprinklers, etc. These devices generally include a power mechanism, through which the liquid in the container generates high pressure, and then sprays out with the nozzle. These spraying devices contain an indispensable mechanism. It is the flow control switch. Only through the flow control switch can the flow and speed of the sprayed liquid be controlled, and the control of when and where to spray can also be achieved. [0003] The current flow control equipment on the market is an aircraft carrier-type hand-buckle sprayer disclosed in a patent (CN 2765676Y), which includes a multifunctional head cap, a wrench, a piston, a main b...

AI Technical Summary

Problems solved by technology

[0004] Although the device disclosed in this patent can control when the liquid is sprayed, it also has defects. The device cannot realize the quantitative control of the sprayed liquid, nor can it realize the spraying of the liquid at intervals. For some flowers and plants that require quantitative watering or spraying of pesticides , it is not possible to use the device for spraying

Images