JPH0430282U

JPH0430282U -

Info

Publication number: JPH0430282U
Application number: JP7049890U
Authority: JP
Priority date: 1990-07-02
Filing date: 1990-07-02
Publication date: 1992-03-11

Description

[Brief explanation of the drawing]

第１図は本考案にかかるベローズポンプにおけ
るストローク数検出装置の一実施例を示す要部切
り欠き平面図、第２図はその左側面図、第３図は
その正面図である。１……フレーム、２……ポンプ本体、４……ベ
ローズ、７……駆動モータ、８……回転軸、８ａ
……延出端部、９……２重偏心カム機構、１４…
…回転板、１６……スリツト、１７……フオトイ
ンタラプタ。 FIG. 1 is a cutaway plan view of essential parts showing an embodiment of a stroke number detection device for a bellows pump according to the present invention, FIG. 2 is a left side view thereof, and FIG. 3 is a front view thereof. 1... Frame, 2... Pump body, 4... Bellows, 7... Drive motor, 8... Rotating shaft, 8a
...Extending end portion, 9...Double eccentric cam mechanism, 14...
... Rotating plate, 16... Slit, 17... Photo interrupter.

Claims

[Scope of utility model registration request]

A pump body is attached to the frame and performs pump supply by the reciprocating movement of an expandable bellows, a drive motor is attached to the outside of one side of the frame, and each end is supported on each side of the frame. a rotating shaft whose one end is connected to the drive motor and rotationally driven; and a cam means which is penetrated by the rotating shaft and allows the bellows to reciprocate at a number of strokes corresponding to the number of rotations of the rotating shaft. In the bellows pump, the flow rate of pump feeding is controlled according to the number of strokes of the bellows, the other end of the rotary shaft is extended, and the rotary plate provided with the detected element is connected to the other end of the rotary shaft. The frame is provided with an optical detection means that is directly connected to the projecting end so as to be integrally interlocked, faces the rotating plate in a non-contact state, and detects the detected element as the rotating plate rotates, A stroke number detection device for a bellows pump, characterized in that the number of rotations of the rotary plate is detected based on detection of an element, and thereby the number of strokes of the bellows is detected.