JPH0167534U

JPH0167534U -

Info

Publication number: JPH0167534U
Application number: JP1987164089U
Authority: JP
Priority date: 1987-10-27
Filing date: 1987-10-27
Publication date: 1989-05-01

Description

[Brief explanation of the drawing]

第１図は本考案による液面検出器のフロートの
一実施例の分解断面図、第２図は第１図の実施例
の超音波溶着前の要部拡大断面図、第３図は第１
図の実施例の超音波溶着後の要部拡大断面図、第
４図は第１図の実施例のリングマグネツトを装着
した状態を示す概略断面図である。１０……液面検出器のフロート、１１……フロ
ート下部、１１ａ……外側壁部、１１ｂ……内側
壁部、１１ｃ……底部、１１ｄ，１１ｅ……段部
、１２……フロート上部、１２ａ，１２ｂ……突
出部、１２ｂ′……ストツパ、１３……リングマ
グネツト。 Fig. 1 is an exploded sectional view of an embodiment of the float of the liquid level detector according to the present invention, Fig. 2 is an enlarged sectional view of the main part of the embodiment of Fig. 1 before ultrasonic welding, and Fig. 3 is the
FIG. 4 is an enlarged sectional view of the main part of the embodiment shown in the figure after ultrasonic welding, and FIG. 4 is a schematic sectional view showing the state in which the ring magnet of the embodiment shown in FIG. 1 is attached. 10... Float of liquid level detector, 11... Float lower part, 11a... Outer wall part, 11b... Inner wall part, 11c... Bottom part, 11d, 11e... Step part, 12... Float upper part, 12a , 12b... protrusion, 12b'... stopper, 13... ring magnet.

Claims

[Claims for Utility Model Registration] (1) A stem extending perpendicularly from above to the liquid level to be detected and incorporating a reed switch, and a stem formed so that the liquid level has a lower specific gravity than the liquid to be detected. A liquid level detector including a hollow cylindrical float loosely fitted to be movable in the vertical direction along the stem, and a magnet attached to the float, wherein the float has a concentric double A float lower part consisting of a cylindrical outer wall part, an inner wall part, and a bottom part that connects and closes the outer wall part and the inner wall part at the lower end, and an annular part that closes the open upper end of the float lower part. The upper part of the float is sealed to the lower part of the float, and a ring magnet is press-fitted into the hollow inner surface of the upper part of the float at a high temperature by heating, and the float is hardened by natural cooling. A float for a liquid level detector, characterized in that the ring magnet is fixed to the float. (2) The float for a liquid level detector according to claim 1, wherein the upper part of the float and the lower part of the float are sealed by ultrasonic welding.