Flow measuring equipment with anti-backflow structure

By installing baffles in the flow measurement device to prevent backflow, the problems of measurement errors and equipment damage caused by backflow are solved, achieving accurate flow measurement and equipment protection.

CN224286035UActive Publication Date: 2026-05-26WEIHAI CHENGXU INSTR CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIHAI CHENGXU INSTR CO LTD
Filing Date
2025-07-18
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing flow measurement equipment is prone to measurement errors and equipment damage under reverse flow conditions, especially at the pump outlet.

Method used

A baffle is installed in the flow measurement device to allow water to flow in only one direction. The baffle seals the pipe to prevent backflow. Flow measurement devices equipped with anti-backflow structures are used.

Benefits of technology

It effectively avoids measurement errors caused by backflow and protects the equipment from damage caused by backflow, especially the water pump outlet.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224286035U_ABST
    Figure CN224286035U_ABST
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Abstract

The utility model belongs to the technical field of flow measurement equipment, and particularly relates to flow measurement equipment with an anti-backflow structure, which comprises a flow tube, a connecting column, a measurement display component and an anti-backflow mechanism. The anti-backflow mechanism comprises a fixing ring, a fixing block, two fixing columns, a blocking piece and a gasket. Wherein the fixing ring is arranged on the inner wall of the flow tube, the outer wall of the fixing block is connected with the outer wall of the fixing ring, the two fixing columns are arranged on the side walls of the fixing block respectively, the blocking piece is installed on the outer wall of the fixing ring, a connecting groove is formed in the outer wall of the blocking piece, two movable grooves are formed in the inner wall of the connecting groove, and the gasket is installed on the outer wall of the blocking piece. According to the utility model, the baffle plate can be arranged in the pipeline for measuring the flow, only water flow is allowed to pass through unidirectionally, and the baffle plate can seal the pipeline when countercurrent occurs, so that the water flow cannot pass through, the measurement error caused by the countercurrent is avoided, and the water flow can be prevented from countercurrent to damage equipment (such as a water pump outlet).
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