Double-temperature water-heating series two injection type concurrent control valve and manufacturing method thereof

Abstract

A downstream control valve of two-pouring type of dual-temperature water heating series and a manufacture method thereof are provided. The invention includes a one-step forming valve body, a valve rod, a spiral handle, a valve cover, a valve core and a post forming valve body. The one-step forming valve body is formed in a first-time die by injection molding. A blank cap and a closure head are arranged on the one-step forming valve body and then the one-step forming valve body is placed in a second-time die chamber to form the post forming valve body which wraps the one-step forming valve body. The valve rod, the spiral handle and the valve cover are mounted on the forming valve body. The upper sheet of the valve core, the middle sheet of the valve core, the bottom sheet of the valve core and the cushion of the valve core are mounted in turn in the spool chamber of the forming valve body. In order to reduce the production cost of the prior water tap and improve the sanitary quality of the water, metal material is replaced by plastic and the through hole injection molding and the post forming technology are adopted. When the water tap is rotated left or right, the hot or the cold water can be provided. With the advantages of high sensitivity of temperature control and high service efficiency, the invention solves the problem of high cost for the prior water tap and has a broad market foreground.

Description

technical field [0001] The invention relates to a dual-temperature plumbing series two-injection type downstream control valve and a manufacturing method thereof. The method of using plastic instead of metal material and adopting through-hole injection molding and secondary molding process can reduce the cost of existing faucet products and improve water consumption. The purpose of hygiene quality belongs to the field of daily life facilities products. Background technique [0002] Valve is a general term for the components used by pipelines to control or gas flow, reduce their pressure or change the direction of the flow path in daily use. The structure is divided into: ball valve, rotary valve, clarification valve, etc. There are also special valves as part of the machine, such as intake valve, exhaust valve and slide valve, etc. The faucet is a common name for the valve or small valve at the water outlet on the water pipe. [0003] At present, the widely used dual-temper...

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Problems solved by technology

[0004] The present invention provides a novel dual-temperature plumbing series two-injection downstream control valve and its manufacturing method, which uses plastic instead of metal materials and adopts a method of through-hole injection molding and secondary molding technology to reduce the cost and cost of existing faucet products. The purpose of improving the quality of water sanitation is to solve the problem of high cost of existing faucet products

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