JPH0210464Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Application) The present invention relates to a voltage detector for checking the voltage of a distribution line to which an AC voltage of 100V or 200V is applied.

(Problems with the Prior Art) Generally, a circuit meter such as a tester is used to check the voltage of a distribution line to which an AC voltage of 100V or 200V is applied.

With the above method, for example, when measuring the voltage applied to an outlet, it is necessary to insert the test rods of a pair of test cords of the circuit meter into the outlet, which is troublesome and short-circuiting. It was dangerous as it could cause

(Purpose of the present invention) In view of the above-mentioned points, the purpose of the present invention is to facilitate and safely inspect the voltage of an outlet or the voltage of a distribution line other than an outlet.

(Embodiment) The present invention will be described below based on FIGS. 1 to 3 showing an embodiment of the present invention. Reference numeral 1 denotes a main body of a voltage detector, and a column portion 1a having a rectangular cross section is provided at the upper part.
A pair of pointed blades 2a, 2b for plugging in an outlet protrude from the upper surface 1b, and three test cord plugging terminals 3a, 3 are provided on the front side 1d of the column 1a.
b, 3c are provided, and the left and right side surfaces 1 of this pillar portion 1a are
Vertical grooves 4 are provided at e and 1f. In addition, a pair of pointed blades 2a, 2b and a pair of insertion terminals 3a, 3b
The pair of pointed blades 2a and 2b are electrically connected to each other.
Alternatively, a pair of indicators 5 provided at the bottom of the main body 1 in response to the voltage applied to the pair of plug-in terminals 3a, 3b.
A and 5b are turned on and an alarm sound is generated from an opening 6 provided at the bottom of the main body 1. Further, the plug-in terminal 3c and the plug-in terminal 3b form a pair so that the resistance value can be checked. 7 is a power switch for operating the function of the voltage detector, 8 is a display window for voltage detection, and 9 is a contact terminal for voltage detection, each of which is provided at the bottom of the main body 1. By making contact, the voltage state of one of the pointed blades 2a is displayed through the display window 8. Reference numeral 10 denotes a cover, which is composed of a cylindrical portion 10a and an upper lid portion 10b that closes the upper surface of the cylindrical portion 10a and has a through hole through which the pointed blades 2a and 2b are inserted. A circular protrusion 11 is provided which is fitted into the pillar portion 1a to form a circular protrusion 11.
1 is inserted into the groove 4 and is movable in the vertical direction. Note that stop holes 4a and 4b are provided near the upper and lower ends of the groove 4, and the circular protrusion 11 is locked in these holes 4a and 4b. The cover 10 is brought to the lower position by locking the stopper hole 4b in the lower position. That is, when the cover 10 is in the upper position, the pointed blades 2a,
2b is surrounded by a cover 10 and has a plug terminal 3
When the cover 10 is in the lower position, the pointed blades 2a, 2b protrude from the cover 10 and surround the plug-in terminals 3a, 3b, 3c, as shown in FIG. Note that the cover 10 is prevented from coming off by a vertically elongated recess 10c provided on the upper and lower inner surfaces of the cylindrical portion 10a of the cover 10 and a protrusion 1g provided at the upper end of the upper and lower surfaces 1d and 1c of the columnar portion 1a of the main body. .

(Effects) As described above, the present invention has a pair of pointed blades 2a, 2b for plugging into an outlet protruding from the upper surface 1b, and the pointed blades 2a, 2b.
A pillar portion 1a is provided with a pair of test cord plug-in terminals 3a, 3b electrically connected to the column portion 2b on the side surface 1d.
The main body 1 outputs a signal in response to the voltage applied to the pointed blades 2a, 2b or the plug terminals 3a, 3b, and the column 1a is movable up and down, and is in the upper position. A cover 10 surrounds the pointed blades 2a, 2b, exposes the plug-in terminals 3a, 3b, protrudes the pointed blades 2a, 2b at a lower position, and surrounds the plug-in terminals 3a, 3b. Therefore, when checking the voltage of the outlet, cover 10
When checking the voltage of the distribution line excluding the outlet by using the pointed blades 2a and 2b with the cover 10 in the lower position.
With the cover 10 in the upper position to expose the plug-in terminals 3a and 3b and the test cord inserted, inspection can be performed easily.Furthermore, when the cover 10 is in the lower position and the voltage of the outlet is checked, the sharp blades 2a and 2b are inserted.
There is no risk of short circuit, and the cover 10
When checking the voltage of the distribution line with the holder in the upper position, the voltage applied to the plug terminals 3a and 3b is
Since the sharp edges 2a and 2b are surrounded by the cover 10, even if the voltages b are applied at the same time, the operation can be performed safely.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the voltage detector of the present invention, in which FIG. 1 shows the cover 10 in the lower position, a is a front view, b is a right side view, and FIG. The cover 10 is in the upper position, and a is a front view and b is a front view.
3 is a right side view, and FIG. 3 is an exploded perspective view of essential parts. 1...Main body, 1a...Column portion, 1b...Top surface, 1
d...Top surface, 2a and 2d...Pointed blade, 3a and 3b...Plug-in terminal, 10...Cover.

Claims (1)

[Scope of utility model registration request] A pair of pointed blades for plugging into an outlet protrude from the top surface, and a pillar part is provided on the side surface with a pair of plug-in terminals for test cords electrically connected to the pointed blades, respectively. a main body that outputs a signal in response to a voltage applied to the main body; and a column that is movable up and down, and surrounds the pointed blade at the upper position and exposes the plug-in terminal; and a cover that protrudes and surrounds the plug-in terminal.