JPS634477U

JPS634477U -

Info

Publication number: JPS634477U
Application number: JP9850786U
Authority: JP
Priority date: 1986-06-26
Filing date: 1986-06-26
Publication date: 1988-01-12

Description

[Brief explanation of the drawing]

第１図：本考案に係るバルブの開閉駆動装置を
用いた自動潅水装置の電気回路図、第２図：同自
動潅水装置のブロツク回路図、第３図：同自動潅
装置の外観構成図、第４図：同自動潅水装置の水
分センサにおけるプローブの正面図、第５図：同
自動潅水装置におけるバルブユニツトの正面図。尚図面中、１：バルブの開閉駆動装置、３：駆
動モータ、４：過電流検出回路、５：スイツチン
グ回路、６：ロツク回路、７：ロツク解除回路、
８：バルブ。 Figure 1: Electrical circuit diagram of an automatic irrigation system using the valve opening/closing drive device according to the present invention, Figure 2: Block circuit diagram of the automatic irrigation system, Figure 3: External configuration diagram of the automatic irrigation system, FIG. 4: A front view of the probe in the moisture sensor of the automatic irrigation system, and FIG. 5: A front view of the valve unit in the automatic irrigation system. In the drawings, 1: valve opening/closing drive device, 3: drive motor, 4: overcurrent detection circuit, 5: switching circuit, 6: lock circuit, 7: lock release circuit,
8: Valve.

Claims

[Claims for Utility Model Registration] (1) In a valve opening/closing drive device that controls a drive motor to open and close a valve, an overcurrent that outputs a detection signal based on the overcurrent of the drive motor that has stopped at the end of opening and closing of the valve. a detection means, a switching means for outputting a motor stop signal of substantially the same level in response to the input of the detection signal to cut off the power to the drive motor, and a switching means for feeding back the motor stop signal to the input of the switching means. 1. A valve opening/closing driving device comprising: a locking means for locking the state; and a lock releasing means for releasing the lock in response to a valve opening/closing command signal. (2) The valve opening/closing device according to claim 1, wherein the detection signal is a low level signal.