JPH02104544U

JPH02104544U -

Info

Publication number: JPH02104544U
Application number: JP1320689U
Authority: JP
Priority date: 1989-02-07
Filing date: 1989-02-07
Publication date: 1990-08-20

Description

[Brief explanation of the drawing]

第１図はこの考案による実施例の構成図、第２
図と第３図は第１図の使用状態説明図、第４図は
第１図の管１を入口部分から見た図、第５図と第
６図はこの考案による他の実施例の構成図、第７
図は従来技術の構成図である。１……管、２……ボール、３……ばね、４Ａ…
…発光器、４Ｂ……受光器、５Ａ……入口、５Ｂ
……出口、６……ストツパ、７Ａ，７Ｂ……スリ
ツト、８Ａ，８Ｂ……光フアイバ。 Figure 1 is a configuration diagram of an embodiment according to this invention, Figure 2
3 and 3 are explanatory diagrams of the usage state of FIG. 1, FIG. 4 is a view of the tube 1 of FIG. 1 seen from the inlet portion, and FIG. 5 and FIG. Figure, 7th
The figure is a configuration diagram of a conventional technique. 1...Tube, 2...Ball, 3...Spring, 4A...
...Emitter, 4B...Receiver, 5A...Entrance, 5B
...Exit, 6...Stopper, 7A, 7B...Slit, 8A, 8B...Optical fiber.

Claims

[Claims for Utility Model Registration] 1. A ball 2 inserted into the pipe 1 and moved by the flow, and a ball 2 inserted into the pipe 1 when there is no flow.
Push the ball to the inlet 5A side, and if there is a flow, push the ball 2
The spring 3 is compressed toward the outlet 5B by the force of the flow pushing the spring 3, the light emitter 4A is placed at a position where the emitted light passes through the tube 1, and the light emitter 4A is placed at a position where the light from the light emitter 4A that passes through the tube 1 is received. The position of the ball 2 moves within the tube 1 depending on whether there is a flow, and the light from the light emitter 4A is passed through the tube 1 or blocked by the movement of the ball 2. A flow detection mechanism characterized by: 2. The flow detection mechanism according to claim 1, wherein the pipe 1 is formed in a circular shape. 3. Claim 1, wherein a plurality of light emitters 4A are arranged along the tube 1, and a plurality of light receivers 4B are arranged, each of which receives the light of the plurality of light emitters 4A transmitted through the tube 1.
Mechanism for detecting the presence or absence of the described flow. 4 Arrange a plurality of slits 7A along the pipe 1,
A plurality of light emitters 4A are arranged for each slit 7A,
Flow according to claim 1, wherein a plurality of light receivers 4B are arranged to receive the light from the plurality of light emitters 4A transmitted through the tube 1 from the slit 7A via a plurality of slits 7B arranged on opposite sides of the tube 1. Presence detection mechanism. 5 A plurality of first optical fibers 8A are arranged along the tube 1, and the light from the light emitter 4A is transmitted through the first optical fibers 8A.
and a second optical fiber 8 is placed at a position to receive the light from the first optical fiber 8A that has passed through the tube 1.
2. The flow detection mechanism according to claim 1, wherein a plurality of B are arranged along the pipe.