JPH0239094Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a solenoid valve, and more particularly, to a solenoid valve that can display the station number of a solenoid.

[Background technology]

Generally, electromagnetic valves are used to drive and control actuators and the like for operating various machines using fluid pressure and the like. This solenoid valve turns on and off the supply of current to the solenoid, controls the flow direction of the fluid passing through the valve body and the opening and closing of the flow path, and operates so that the actuator etc. performs work according to the fluid. .

By the way, in today's large-scale fluid control systems, many solenoid valves such as those described above may be installed in parallel, and whether or not such solenoid valves are in operation is assigned to each one of them. This can be confirmed by checking the lighting status of indicator lights such as lamps.

However, since the solenoid valve and the above-mentioned lamp in the monitoring section are located far apart from each other, and the wiring connecting them is mixed, it can be easily determined which lamp is used to indicate the operation of which solenoid valve. I couldn't identify it. On the other hand, conventionally, such identification has been carried out by attaching a tag number to the wiring, or by manually tracing and confirming wiring that does not have a tag number or other markings. However, there is a problem in that troublesome work is required to confirm this, and it is not easy to identify a malfunctioning solenoid valve.

[Purpose of invention]

An object of the present invention is to provide a solenoid valve that allows the station number of the solenoid to be accurately and quickly confirmed from the number set in the number setting section and displayed on the number display section.

[Summary of the idea]

The present invention provides a solenoid valve body with a number display section that displays the station number of the solenoid and a number setting switch that can arbitrarily set the station number displayed by this number display section. This makes it easy to identify a solenoid valve that has a function and to confirm whether the identified solenoid valve is operating or not.

〔Example〕

FIG. 1 shows a block connection diagram showing an embodiment of the solenoid valve according to the present invention.

In the figure, reference numeral 1 denotes a solenoid that acts as a driving part for a solenoid valve, and is connected between a terminal 2 for inputting DC power and ground. Reference numeral 3 denotes seven light emitting diodes in a seven-segment arrangement connected to the terminal 2 through each one of a plurality of resistors 4, and these constitute a number display section 5 for displaying the station number.

In addition, each light emitting diode 3 of this number display section 5
is connected to a lighting control circuit 6 having a TTL (transistor-transistor-logic) circuit configuration. 7 is a number setting section connected to this lighting control circuit 6, which consists of, for example, four on/off type switches 8 arranged in parallel;
By switching off, there are 16 different signals, i.e.
It is possible to select and set or specify 16 different station numbers. Note that these switches 8 are collectively connected to a terminal 10 of a DC power source via one resistor 9, respectively. Further, 11 is a terminal of a control power source of the lighting control circuit 6.

FIG. 2 is an external view of a solenoid valve having the circuit as described above, and this solenoid valve consists of a solenoid section 12 containing the solenoid 1 described above and a switching valve section 13. In this electromagnetic valve, the number display section 5 and the number setting section 7 are integrally installed on the outer surface of the solenoid section 12 as shown.

Next, the operation of this embodiment will be explained.

First, in order to enable the lighting control circuit 6 and the number setting section 7, a DC power supply voltage is input to the terminals 11 and 10. Next, a solenoid drive voltage is supplied to the terminal 2 from a predetermined solenoid drive circuit to drive the solenoid 1, thereby enabling the solenoid valve to operate the actuator.

In this case, when a large number of the above-mentioned solenoids, that is, such electromagnetic valves, are arranged in parallel, in order to specify the operation of this electromagnetic valve and the station number of the system to which this electromagnetic valve belongs, enter the number corresponding to the station number. Switch 8 of setting section 7
setting by operating one or more of the following. As a result, a signal corresponding to this operated switch operation is input to the lighting control circuit 6,
After the appropriate arithmetic processing is executed here, one or more of the light emitting diodes 3 of the number display section 5 forming a number corresponding to the specified station number is lit, and the specified station number is displayed. . This display operation is similarly performed for other solenoid valves (not shown). Thus,
The correspondence between each solenoid valve and the station number can be seen at a glance, making it easier for supervisors to maintain and manage the solenoid valve control system, and reducing their labor burden.

In the above embodiment, a DC power source for the light emitting diode 3 is commonly used as a power source for energizing the solenoid 1, but the solenoid 1 may be energized by a separate AC power source.

〔effect〕

According to the present invention, a number display section that displays the station number of the solenoid and a number setting switch that can arbitrarily select and set the station number displayed by this number display section are integrated into the solenoid valve body. Because of this configuration, the correspondence between the above-mentioned solenoid and station number can be clearly seen.
This can reduce the burden on operators and others in monitoring the solenoid valve operation. Further, since the station number can be set arbitrarily, there is an advantage that a new correspondence relationship between the electromagnetic valve and the station number can be created or changed.

[Brief explanation of the drawing]

FIG. 1 is a block connection diagram showing an embodiment of the solenoid valve according to the present invention, and FIG. 2 is an external view thereof. 1... Solenoid, 5... Number display section, 6...
Lighting control circuit, 7...Number setting section.

Claims (1)

[Claims for Utility Model Registration] (1) In a solenoid valve that controls a switching valve section by controlling the electric power supplied to the solenoid, a number display section that displays the station number of the solenoid and a display of the station number are optional. A solenoid valve characterized by an integrated number setting switch that can be set to (2) The solenoid valve according to claim 1 of the utility model registration claim, wherein the number display portion has a seven-segment configuration. (3) The electromagnetic valve according to claim 1, wherein the number display section is operated by a power source for driving a solenoid.