JPH0590858U - Outlet with ground indicator - Google Patents

Abstract

(57) [Abstract] [Purpose] The main feature of the present invention is to provide an outlet with a grounding indicator capable of extremely easily confirming whether or not the grounding terminal is surely grounded. [Structure] Two sets of outlets including power supply terminals 2 and 3 and a ground terminal 4 are provided, and a power supply indicator 6 and a switch 7 with a ground indicator are provided between them. The switch 7 with a grounding indicator is provided with a grounding indicator 71 and a switch 72.
Is connected to the power source, the other end is connected to one end of the switch 72, and the other end of the switch 72 is connected to the ground terminal. If the grounding terminal 4 is grounded, pressing the switch 72 with a finger causes the grounding indicator 71 to light up, and it can be easily confirmed whether or not it is grounded.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an outlet with a grounding indicator, and more particularly, to an outlet with a grounding indicator, which has a pair of power supply terminals and a grounding terminal and allows a display to confirm whether or not the grounding terminal is grounded.

[0002]

[Problems to be solved by conventional techniques and devices]

 The outlet with a grounding terminal is provided with at least one pair of power supply terminal and grounding terminal, and the grounding terminal is electrically connected internally to the metal mounting portion. When installing such an outlet with a grounding terminal on the wall of a building, there is a risk of causing an electric leakage accident, etc. if the metal mounting part is not securely grounded. However, with conventional outlets with grounding terminals, it was not easy to confirm whether or not the grounding terminal was reliably grounded after it was installed on the wall of the building.

Therefore, a main object of the present invention is to provide an outlet with a grounding indicator, which can very easily confirm whether or not the grounding terminal is surely grounded.

[0004]

[Means for Solving the Problems]

 This invention is an outlet provided with a pair of power supply terminals and a grounding terminal grounded through a metal mounting portion, one end of which is connected to either one of the pair of power supply terminals. And a switch connected between the other end of the ground indicator and the ground terminal.

[0005]

[Action]

 In the outlet with a grounding indicator according to the present invention, whether the grounding terminal is grounded or not is checked by operating a switch to turn on the grounding indicator.

[0006]

【Example】

 FIG. 1 is a plan view showing an embodiment of the present invention. In FIG. 1, a case 1 is provided with two sets of outlets including a pair of parallel power supply terminals 2, 3 and a grounding terminal 4, and each power supply terminal 2, 2, 3 and 3 is inside the case 1. Is electrically connected to. The ground terminals 4 and 4 are electrically connected to the metal mounting portion 5 inside the case 1. It is grounded by screwing this mounting part 5 to the wall surface of the building. A power supply indicator 6 and a ground indicator switch 7 are provided between the two outlets. The power indicator 6 indicates that the power terminals 2 and 3 are energized, and the switch 7 with a ground indicator does not light up when the ground terminal 4 is not grounded when pressed with a finger. If the grounding terminal 4 is grounded, it lights up and you can see that it is grounded.

FIG. 2 is an electric circuit diagram of an embodiment of the present invention. Referring to FIG. 2, power supply terminals 2 and 3 are connected to a power supply by a cable or the like, and power supply display 6 and resistor 8 are connected in series between power supply terminals 2 and 3. As the power indicator 6, for example, a neon tube is used. Further, a diode 9, resistors 11 and 12, and a diode 10 are connected in series between the power supply terminals 2 and 3. One end of the ground indicator 71 is connected to the connection point of the resistors 11 and 12, the other end of the ground indicator 71 is connected to one end of the switch 72, and the other end of the switch 72 is connected to the ground terminal 4. .

In FIG. 2, when power is supplied to the power supply terminals 2 and 3, a voltage is applied to the power supply indicator 6 to turn it on. If the grounding terminal 4 is grounded through the mounting portion 5 shown in FIG. 1 and power is supplied to the power supply terminals 2 and 3, pressing the switch 72 with a finger causes the grounding indicator 71 to light up and the grounding to be performed. You can easily confirm that terminal 4 is grounded.

FIG. 3 is a diagram showing the structure of the switch with ground indicator shown in FIG. As shown in FIG. 3 (a), a board 73 is provided on the bottom of the switch 7 with a grounding indicator, and the grounding indicator 72 is attached to the board 73 and contacts 74 and 75 are provided. Installed. The contact point 74 is electrically connected to one end of the ground indicator 72, and the contact point 75 is connected to the ground terminal 4 by a lead wire (not shown). As shown in FIG. 3B, a metal piece 77 is attached to the lower end of the cap 76, and a coil spring 78 is provided inside the metal piece 77. When the upper part of the cap 76 is pushed with a finger, the metal piece 77 comes into contact with the contacts 74 and 75 of the substrate 73, and the other end of the ground indicator 71 is grounded via the switch 72, as shown in FIG. Light.

[0010]

[Effect of the device]

 As described above, according to the present invention, one end of the ground indicator is connected to the power supply terminal, and the switch is connected between the other end of the ground indicator and the ground terminal, so that the switch can be operated with a finger. It is very easy to check whether the ground terminal is grounded or not by checking whether the ground indicator lights up.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is an electric circuit diagram of an embodiment of the present invention.

FIG. 3 is a diagram showing a structure of a switch with a ground indicator shown in FIG.

[Explanation of symbols]

 1 Case 2, 3 Power supply terminal 4 Grounding terminal 5 Mounting part 6 Power supply display 7 Switch with grounding display 8, 11, 12 Resistance 9, 10 Diode 71 Grounding display 72 Switch

Claims (1)

[Scope of utility model registration request] 1. A grounding indicator having a pair of power supply terminals and a grounding terminal grounded via a metal mounting portion, one end of which is connected to one of the pair of power supply terminals. And a switch connected between the other end of the ground indicator and the ground terminal, the metal mounting portion is grounded by operating the switch and turning on or off the ground indicator. An outlet with a grounding indicator, which is characterized in that it can be checked whether or not it is present.