JPH0428389U

JPH0428389U -

Info

Publication number: JPH0428389U
Application number: JP6885790U
Authority: JP
Priority date: 1990-06-28
Filing date: 1990-06-28
Publication date: 1992-03-06
Anticipated expiration: 2005-06-28
Also published as: JP2531996Y2

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す縦断面図、第２
図〜第６図は部品図で、第２図は本体を示す縦断
面図、第３図は外側Ｏリングの縦断面図、第４図
は保護カバーの縦断面図、第５図は素子取付台の
縦断面図、第６図は内側Ｏリングの縦断面図、第
７図は第１図の要部拡大図、である。１……本体、２……保護カバー、４……素子取
付台、９……内側Ｏリング、１０……外側Ｏリン
グ、２１……内側シール部、２１ａ……側壁、２
２……外側シール部、２２ａ……側壁、４１……
内側シール部、４１ａ……側壁、１０１……外側
シール部、１０１ａ……側壁。 Fig. 1 is a vertical sectional view showing an embodiment of the present invention;
Figures 6 to 6 are parts diagrams, Figure 2 is a vertical cross-sectional view of the main body, Figure 3 is a vertical cross-sectional view of the outer O-ring, Figure 4 is a vertical cross-sectional view of the protective cover, and Figure 5 is the element installation. FIG. 6 is a vertical cross-sectional view of the base, FIG. 6 is a vertical cross-sectional view of the inner O-ring, and FIG. 7 is an enlarged view of the main part of FIG. DESCRIPTION OF SYMBOLS 1...Main body, 2...Protection cover, 4...Element mounting base, 9...Inner O-ring, 10...Outer O-ring, 21...Inner seal portion, 21a...Side wall, 2
2... Outer seal portion, 22a... Side wall, 41...
Inner seal portion, 41a...side wall, 101...outer seal portion, 101a...side wall.

Claims

[Claims for Utility Model Registration] (1) A fire detector in which an O-ring is interposed between a sealing part of the main body and a sealing part of a protective cover, in which the O-ring is sandwiched between the side walls of both the sealing parts. The fire detector is further characterized in that both the seal portions are formed so as to be relatively movable in a horizontal direction. (2) In a fire detector equipped with a printed circuit board, the detector housing is composed of a main body that houses the printed circuit board, an element mounting base that supports a fire detection part such as a heat-sensitive element, and a protective cover. Attach the mounting base to the printed circuit board with a locking post, attach the printed circuit board by engaging it with the locking protrusion on the main body, and lock the protective cover to the main body, so that there is no space between the main body and the protective cover, and between the protective cover and the element. A fire detector characterized in that an O-ring is interposed between each of the fire detector and the mounting base. (3) The fire according to claim 2, wherein the lead wire drawn out of the sensor from the printed circuit board passes through a recess provided in the main body, and the recess is filled with a filling material. sensor. (4) The fire detector according to claim 2, wherein the protective cover is provided with a protector for a fire detection section disposed on the element mounting base.