Water meter shell

Abstract

The invention provides a water meter shell, and the shell comprises a meter body (1), a water inlet pipe (2), a water outlet pipe (3) and a movement positioning ring (4). The meter body (1) comprisesa body (21) and an embedded upper end ring (22). The body (21), the upper end ring (22), the meter body (1), the water inlet pipe (2) and the water outlet pipe (3) are formed by punching of steel pipes, and an arc-shaped contraction ring (6) surrounding a lower port (5) is formed at the lower end of the meter body (1). A water inlet (7) and a water outlet (8) are formed at the two sides of the body (21). The lower port (5) is welded with a small circular steel plate (12), serving as a shell bottom. A port external thread (13) is arranged at the upper end; connecting pipe external threads (19)are arranged at the outer ends of the water inlet pipe (2) and the water outlet pipe (3), and the inner ends of the water inlet pipe (2) and the water outlet pipe (3) form cambered surface openings (14) through laser cutting and are respectively welded to the outer surfaces of a water inlet (7) and a water outlet (8) of the meter body (1). The water meter shell is made of light and thin materials,light in weight, low in manufacturing cost and capable of meeting the environment-friendly requirement.

Description

technical field [0001] The invention belongs to the technical field of water meter manufacturing, and in particular relates to a water meter shell formed by stamping and welding by adopting steel pipes or steel plates. Background technique [0002] At present, most of the water meter shells on the market are made of nodular cast iron or brass casting; due to the casting molding process, the shell thickness is relatively large and the weight is heavy, and casting defects such as pores and shrinkage are prone to occur, resulting in low production efficiency ; Cast iron is easy to rust, which affects water quality, and the cost of brass casting is very high; at the same time, there are more waste gases in the production process, which has a great impact on the environment and human body. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a water meter casing that is formed by stamping and welding steel pipes or steel p...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the water meter shells on the market are made of nodular cast iron or brass casting; due to the casting molding process, the shell thickness is relatively large and the weight is heavy, and casting defects such as pores and shrinkage are prone to occur, resulting in low production efficiency ;Cast iron is easy to rust, which affects water quality, and the cost of brass casting is very high; at the same time, there is a lot of waste gas in the production process, which has a great impact on the environment and human body

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