Non-return structure of flow channel for water filtering equipment for ensuring water quality and preventing damages of water filtering equipment

• Main Author: CHEN, DIAN-WEI
• Format: Patent
• Language: Chinese; English
• Published: 01.04.2023
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention relates to a non-return structure of flow channel for water filtering equipment. The water filtering equipment has several filter elements. The filter elements are connected to each other through water pipes using joints. The joints are connected to the water source, and at least one of the joints is mounted with a non-return valve set. The non-return valve set includes a check valve and an one-way member. In which, the check valve has an elastic tube, and one end of the elastic tube is configured with a duckbill valve and the other end is connected to a base. The center of the base is inserted into the elastic tube through a sleeving hole. The one-way member is configured with two steps, and includes a first body portion with a larger diameter and a second body portion with a smaller diameter. The center of the one-way member is configured with a through hole that is continuously penetrated through the first body portion and the second body portion.