JPH0378394U

JPH0378394U -

Info

Publication number: JPH0378394U
Application number: JP13700289U
Authority: JP
Priority date: 1989-11-27
Filing date: 1989-11-27
Publication date: 1991-08-08
Anticipated expiration: 2004-11-27
Also published as: JP2503449Y2

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す概略断面図、第
２図は同上に用いる基台の断面図、第３図は同上
に用いる基台の下面図、第４図は同上に用いる基
台の平面図、第５図は同上に用いる化粧リングの
平面図、第６図は第５図中Ｘ−Ｘ線断面図、第７
図および第８図は同上の要部断面図、第９図は同
上の要部概略断面図、第１０図は同上の要部分解
斜視図、第１１図は同上の要部平面図、第１２図
ａ，ｂはそれぞれ同上の要部平面図、第１３図は
従来例を示す概略断面図、第１４図は同上の要部
断面図である。１…導入カバー、２…感知器本体、３…基台、
４…化粧リング、１２…係止突部、２２…パツキ
ング、２３…端子ピン、２５…クリツプ端子、３
１…収納凹所、３５…水抜孔、３７…段部、５１
…ねじ筒、５３ａ，５３ｂ…補強リブ、５５…ね
じ。 Figure 1 is a schematic sectional view showing an embodiment of the present invention, Figure 2 is a sectional view of a base used in the above, Figure 3 is a bottom view of the base used in the same, and Figure 4 is a base used in the same. , FIG. 5 is a plan view of the decorative ring used in the above, FIG. 6 is a sectional view taken along line X-X in FIG. 5, and FIG.
FIG. 8 is a sectional view of the main part of the same as above, FIG. 9 is a schematic sectional view of the main part of the same as above, FIG. 10 is an exploded perspective view of the main part of the same as above, FIG. 13 is a schematic cross-sectional view showing a conventional example, and FIG. 14 is a cross-sectional view of the main part same as above. 1...Introduction cover, 2...Sensor body, 3...Base,
4... Decorative ring, 12... Locking protrusion, 22... Packing, 23... Terminal pin, 25... Clip terminal, 3
1...Storage recess, 35...Drain hole, 37...Step, 51
...Screw tube, 53a, 53b...Reinforcement rib, 55...Screw.

Claims

[Scope of claim for utility model registration] (1) An introduction cover that introduces surrounding smoke into the interior;
A sensor body that detects the presence or absence of smoke within the introduction cover, a storage recess that is attached to the mounting surface in a protruding manner and that stores the sensor main body on the opposite side of the mounting surface, and a storage recess. A base having drainage holes at key points around the base, and a decorative ring connected to the base so as to surround the entire periphery of an introduction cover that is arranged to protrude from the base. A smoke detector comprising: a locking protrusion sandwiched between the sensor body and a decorative ring formed on the circumferential surface of the introduction cover, and the decorative ring having a width capable of covering a drain hole. (2) A stepped portion is formed on the inner bottom surface of the storage recess all the way around the periphery so that the center portion is deeper than the peripheral portion, and an annular packing is formed between the stepped portion and the sensor body. The smoke detector according to claim 1, which is sandwiched. (3) A clip terminal is attached to the base, which removably holds the terminal board connected to the terminal pin pulled out from the sensor body and fixed to the mounting surface. It is connected to the base by a screw that engages with a screw tube protruding from the inner peripheral surface of the screw tube, and there are reinforcing ribs at key points around the circumference of the screw tube to prevent the screw tube from twisting due to screw engagement. The smoke detector according to claim 1, further comprising:.