JPH0461651U

JPH0461651U -

Info

Publication number: JPH0461651U
Application number: JP10491590U
Authority: JP
Priority date: 1990-10-04
Filing date: 1990-10-04
Publication date: 1992-05-27
Anticipated expiration: 2005-10-04
Also published as: JPH0751169Y2

Description

[Brief explanation of the drawing]

第１図は、本考案の一実施例を示す説明図であ
る。第２図は、第１図における噴霧竿の構成の詳
細を示す説明図である。第３図は、第１図におけ
るモータ駆動回路の詳細を示すブロツク回路図で
ある。第４図は、第３図のモータ駆動回路の作動
を示すタイミングチヤートである。第５図は、本
考案の他の実施例の要部を示す説明図である。第
６図は、第５図の実施例のモータ駆動回路である
。第７図は、本考案の更に他の実施例の要部を示
す説明図である。第８図は、従来技術を示す説明
図である。 FIG. 1 is an explanatory diagram showing an embodiment of the present invention. FIG. 2 is an explanatory diagram showing details of the configuration of the spray rod in FIG. 1. FIG. 3 is a block circuit diagram showing details of the motor drive circuit in FIG. 1. 4 is a timing chart showing the operation of the motor drive circuit of FIG. 3. FIG. FIG. 5 is an explanatory diagram showing the main parts of another embodiment of the present invention. FIG. 6 shows a motor drive circuit of the embodiment shown in FIG. FIG. 7 is an explanatory diagram showing a main part of still another embodiment of the present invention. FIG. 8 is an explanatory diagram showing the prior art.

Claims

[Claims for Utility Model Registration] (1) A pump for pumping liquid medicine, a battery-driven motor for driving the pump, and a motor drive circuit,
A suction port of the pump is communicated with a chemical solution tank, and a discharge port of the pump is communicated with a spray nozzle, and a check valve is provided at an appropriate position in a chemical solution flow path from the chemical solution tank to the spray nozzle through the pump suction port. and a detecting means for detecting continuous ON operation for a predetermined period of time of an operation switch that turns on and off the motor driving circuit, and a detecting means for detecting a continuous ON operation for a predetermined period of time, and the motor driving circuit detects a continuous ON operation for a predetermined period of time, and the motor driving circuit detects a continuous ON operation for a preset period of time, and , self-holding means for holding the motor drive circuit in the on state;
A battery-powered sprayer comprising: a self-holding release means for releasing the self-holding state by turning on the operation switch in the self-holding state. (2) It has a chemical solution pressure pump, a battery-driven motor that drives the pump, and a drive circuit for the motor, and the suction port of the pump is connected to the chemical solution tank, and the discharge port of the pump is connected to the drug solution flow path. A spray nozzle is communicated through an on-off valve, and an on-off operation part of the on-off valve is engaged with an operation switch that opens and closes the motor drive circuit, so that the on-off operation of the on-off valve and the on/off operation of the motor are respectively performed. , a battery-powered sprayer characterized in that it is configured to interlock with each other. (3) The battery-powered sprayer according to claim 2, wherein the opening/closing operation of the on-off valve is performed by a lever piece, and the operation part of the operation switch is located in the movement range of the lever piece. (4) A utility model in which the opening/closing operation part of the on-off valve is a slide piece, one side terminal of the operation switch is fixed to the slide piece, and the other side terminal of the operation switch is exposed to the movement range of the one side terminal. A battery-powered sprayer according to claim 2.