JPS6382030U

JPS6382030U -

Info

Publication number: JPS6382030U
Application number: JP17642986U
Authority: JP
Priority date: 1986-11-17
Filing date: 1986-11-17
Publication date: 1988-05-30
Also published as: JPH0450420Y2

Description

[Brief explanation of the drawing]

第１図は本考案の熱交換器用キヤツプの一実施
例を示す縦断面図、第２図は第１図の上面図、第
３図は第１図の内側キヤツプを示す上面図、第４
図は常温時における内側キヤツプの回転防止片の
状態を示す第３図の―線に沿う縦断面図、第
５図は高温時における内側キヤツプの回転防止片
の状態を示す縦断面図、第６図は従来の熱交換器
用キヤツプを示す縦断面図である。４３……キヤツプ本体、４５……フイラネツク
、４７……内側キヤツプ、４９……外側キヤツプ
、８７……回転防止片、８９……係止部。 Fig. 1 is a vertical sectional view showing one embodiment of the heat exchanger cap of the present invention, Fig. 2 is a top view of Fig. 1, Fig. 3 is a top view showing the inner cap of Fig.
The figures are a vertical sectional view taken along the line - - of Fig. 3 showing the state of the rotation preventing piece of the inner cap at normal temperature, Fig. 5 is a longitudinal sectional view showing the state of the rotation preventing piece of the inner cap at high temperature, and Fig. 6 is a longitudinal sectional view taken along the - line of Fig. The figure is a longitudinal sectional view showing a conventional heat exchanger cap. 43... Cap main body, 45... Fillet neck, 47... Inner cap, 49... Outer cap, 87... Rotation prevention piece, 89... Locking portion.

Claims

[Scope of utility model registration request]

A cap main body is constituted by an inner cap that is locked to a fillet neck of a heat exchanger, and an outer cap that is arranged to cover the upper surface of the inner cap and is rotatable relative to the inner cap, and An anti-rotation piece made of a shape memory alloy is formed on the upper surface of the inner cap and protrudes upward at room temperature and is located below the upper surface of the inner cap at high temperature, and the outer cap has an anti-rotation piece that protrudes upward. A cap for a heat exchanger, characterized in that a locking portion is formed.