JPH0314558U

JPH0314558U -

Info

Publication number: JPH0314558U
Application number: JP6789589U
Authority: JP
Priority date: 1989-06-10
Filing date: 1989-06-10
Publication date: 1991-02-14

Description

[Brief explanation of the drawing]

第１図は要部を断面したこの考案一実施の全体
の説明図、第２図は同給排気筒と排気管との分解
斜面図、第３図は同電気回路図、第４図は同不具
合状態に於ける給排気筒と排気管の接続時の拡大
断面図、第５図は従来例の不具合状態に於ける給
排気筒と排気管の接続時の拡大断面図。１……給排気筒、７……排気口、９……Ｏリン
グ、１０……ビード、１１……突起、１２……器
具本体、１３……排気管、１５……給気管。 Fig. 1 is an explanatory diagram of the entire implementation of this invention with main parts cut away, Fig. 2 is an exploded perspective view of the supply and exhaust pipe and exhaust pipe, Fig. 3 is the electrical circuit diagram, and Fig. 4 is the same. FIG. 5 is an enlarged cross-sectional view of the connection between the supply and exhaust pipe and the exhaust pipe in a malfunctioning state; FIG. 1... Supply and exhaust pipe, 7... Exhaust port, 9... O-ring, 10... Bead, 11... Protrusion, 12... Instrument body, 13... Exhaust pipe, 15... Air supply pipe.

Claims

[Scope of utility model registration request]

The exhaust pipe 13 and the air supply pipe 15 of the appliance main body 12 are connected to the supply and exhaust pipe 1 that protrudes outdoors, and the supply and exhaust pipe 1 is connected to the air supply and exhaust pipe 1.
In the device that detects disconnection of the supply/exhaust pipe 1 by supplying a weak current between the exhaust pipe 13 and the exhaust pipe 13, the distal end of the exhaust pipe 13 is narrowed and the exhaust of the supply/exhaust pipe 1 into which it is fitted is detected. An O-ring 9 protruding from the outer periphery of the opening 7
forming a bead 10 that fits into the bead 1;
A forced air supply/exhaust type combustion appliance characterized in that a protrusion 11 is formed to protrude inwardly and inwardly from zero.