JPH0381561U

JPH0381561U -

Info

Publication number: JPH0381561U
Application number: JP14424789U
Authority: JP
Priority date: 1989-12-13
Filing date: 1989-12-13
Publication date: 1991-08-20

Description

[Brief explanation of drawings]

第１図は本考案の一実施例におけるフローセン
サーの平面図、第２図は同縦断正面図、第３図は
ばね受けの一部切欠正面図、第４図は別の実施例
におけるばね受けの一部切欠正面図、第５図はさ
らに別の実施例における被検出体の縦断正面図、
第６図はさらに別の実施例におけるフローセンサ
ーの縦断正面図、第７図は従来のフローセンサー
の平面図、第８図は同縦断正面図である。１……ケーシング、１ａ……突出部、２……第
１の貫通孔、６……ばね受け、６ａ……第２の貫
通孔、８……被検出体、１１……コイルスプリン
グ（ばね）、１３……検出器、２２ａ，２２ｂ，
２６ａ，２６ｂ……孔（バイパス流路）、２４ａ
，２４ｂ，２８……スリツト（バイパス流路）。 Fig. 1 is a plan view of a flow sensor according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional front view of the same, Fig. 3 is a partially cutaway front view of a spring receiver, and Fig. 4 is a spring receiver in another embodiment. FIG. 5 is a longitudinal sectional front view of the object to be detected in another embodiment,
FIG. 6 is a longitudinal sectional front view of a flow sensor in yet another embodiment, FIG. 7 is a plan view of a conventional flow sensor, and FIG. 8 is a longitudinal sectional front view of the same. DESCRIPTION OF SYMBOLS 1... Casing, 1a... Protrusion part, 2... First through hole, 6... Spring receiver, 6a... Second through hole, 8... Detected object, 11... Coil spring (spring) , 13...detector, 22a, 22b,
26a, 26b...hole (bypass flow path), 24a
, 24b, 28...Slit (bypass flow path).

Claims

[Scope of utility model registration request]

a casing having a first through hole;
a detected object that can reciprocate a predetermined distance within the first through hole and that can come into contact with a protrusion extending over the entire length in the circumferential direction protruding from the peripheral wall of one end of the first through hole; a spring receiver having a second through hole formed therein and fitted and fixed to the other end of the first through hole; and a spring receiver interposed between the spring receiver and the object to be detected so as to cause the object to be detected to protrude. a spring that urges the object toward the spring; and a detector that detects the object to be detected; When the detected object moves toward the other end against the force and the viscous fluid no longer flows in, the detected object moves toward the one end due to the biasing force of the spring, and the detector detects the movement of the detected object. In the flow sensor, the presence or absence of a viscous fluid is sensed by detecting the flow of the viscous fluid, and the viscous fluid that has flowed into the first through hole from one end side flows out through the second through hole. When the other end surface of the detected object comes into contact with one end surface of the spring receiver due to the inflow of viscous fluid into the detected object or the casing and closes one end of the second through hole, the first A flow sensor characterized in that a bypass flow path is formed that connects a through hole and a second through hole or bypasses the second through hole.