Device and method for mounting water pipe connector on shell of thermostat

Abstract

The invention discloses a device and method for mounting a water pipe connector on the shell of a thermostat. The device comprises a mandrel and a mandrel sleeve; the mandrel sleeve is sleeved outside the mandrel; the external diameter of one end of the mandrel sleeve is matched with the internal diameter of the water pipe connector, and the end of the mandrel sleeve is circumferentially provided with at least one through hole; one end corresponding to the through hole, of the mandrel is provided with a conical section with a small end facing to the outside, and the other end of the mandrel extends out of the mandrel sleeve; the through hole of the mandrel sleeve is internally provided with steel balls, and the steel balls abut against the conical section of the mandrel and provided with brims protruding from the through hole; and a threaded matching section is arranged between the mandrel sleeve and the mandrel. The water pipe connector is well mounted on the shell of the thermostat in a sealing way by using the device and the method according to the mechanical stiff extrusion deformation principle. The components of the device have conventional shapes and simple structures and are easy to manufacture. The device has the advantages of low cost and good processing and sealing performances.

Description

[0001] technical field [0002] The invention relates to a tool for installing a water pipe joint of a thermostat shell and an installation method thereof. [0003] Background technique [0004] The thermostat is used in the valve mechanism used to control the coolant flow path in the engine water cooling cycle system. Therefore, a water pipe joint needs to be assembled on the thermostat shell. Due to production costs and other reasons, the thermostat shell is often made of gray cast iron, and the water pipe joints are often made of carbon steel pipes. Therefore, it is difficult to adopt welding methods with good sealing and connection between the thermostat shell and the water pipe joints. Connection, the tightness of the connection is difficult to ensure well, and it is prone to water leakage and the like. [0005] Therefore, how to design a low-cost and well-tight thermostat water pipe joint installation technology has become a difficult problem to be solved in the art...

AI Technical Summary

Problems solved by technology

Due to production costs and other reasons, the thermostat shell is often made of gray cast iron, and the water pipe joints are often made of carbon steel pipes. Therefore, it is difficult to adopt welding methods with good sealing and connection between the thermostat shell and the water pipe joints. connection, the tightness of the connection is difficult to ensure well, and it is prone to water leakage and other phenomena

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