KR200425684Y1 - Safety Concentric Plug - Google Patents

Abstract

The present invention relates to an outlet for supplying power, and the object of the present invention is to provide a safety outlet equipped with a double safety device so as to prevent electric shock even when children play with a conductor inserted in the terminal hole of the outlet.

Safety outlet of the present invention for achieving the above object is the insertion groove is formed so that the plug is inserted into the inner bottom surface of the insertion groove, the upper case of the case formed with two insertion holes so that the plug terminal can be inserted, the lower case A safety socket including a coupled case and a cable extending to the case, the plug contact terminal fixed inside the case to be in contact with the plug terminal inserted into the insertion hole, and positioned inside the case; The cable is connected to a current supplying power supply terminal, and penetrates around the switch which is pushed out by the plug inserted into the insertion groove and protrudes into the insertion groove through the upper case of the case; According to the movement of the plug contact terminal and the power supply terminal or And that is configured to include a lock switch terminal according to the technical features.

Safety outlet, plug, plug contact terminal, switch, switch terminal, power supply terminal

Description

Safety outlet {Safety Concentric Plug}

1 is an exploded perspective view showing a safety outlet according to an embodiment of the present invention,

Figure 2 is a plan view showing the inside of the case bottom plate of the safety outlet shown in Figure 1,

3A is a cross sectional view prior to plugging into the safety outlet shown in FIG. 1, FIG.

3B is a cross-sectional view showing the inside of the safety outlet when the plug is plugged in the state of FIG. 3A.

4 is a plan view showing the relationship when the long conductor is inserted and tilted in the safety outlet shown in FIG.

Explanation of symbols on the main parts of the drawings

1: plug 5: plug terminal

100: outlet 101: case

105: insertion groove 107: insertion hole

110: plug contact terminal 120: switch terminal

130: power supply terminal 140: switch

141: block 143: push bar

145: coil spring 150: leaf spring

The present invention relates to an outlet for supplying power, and in particular, it is equipped with a double safety device so as to prevent electric shock even when children play with a conductor inserted in the terminal hole of the outlet.

Where people can stay, such as homes or offices, power outlets that supply power are fixed to the wall. Such a power outlet has a high-voltage current that can cause a person to be electrocuted and die. Often, an electric shock occurs when a small child inserts a conductor such as a nail or chopstick into a hole in the outlet.

In order to solve the problem of such a safety accident, the safety outlet described in Korean Utility Model Publication No. 375590 (designation name: safety outlet) has a pair of switches located on the inner inner side of the outlet, Is pressed into the insertion hole of the outlet and the power is supplied only by pressing a pair of switches with a plug.

Therefore, even if a child inserts a conductor into the insertion hole of the outlet, the power is not supplied unless a pair of switches are pressed, and thus electric shock is not provided. As such, the conventional safety outlet includes a primary safety device called a switch.

However, in spite of the primary stabilization device, when children insert conductors into both insertion holes of the outlet and press a pair of switches, electric power may be supplied and electric shock may occur.

The present invention is designed to solve the problems of the prior art as described above, the conductor is inserted into each of the insertion hole of the outlet, respectively, tilt the conductor to press a pair of switches, the power terminal and the conductor inside the outlet is dropped It is an object of the present invention to provide a safety outlet equipped with a double safety device that is configured so that the power supply is not made even if the switch is pressed.

Safety outlet of the present invention for achieving the above object is the insertion groove is formed so that the plug is inserted into the inner bottom surface of the insertion groove, the upper case of the case formed with two insertion holes so that the plug terminal can be inserted, the lower case A safety socket including a coupled case and a cable extending to the case, the plug contact terminal fixed inside the case to be in contact with the plug terminal inserted into the insertion hole, and positioned inside the case; The cable is connected to a current supplying power supply terminal, and penetrates around the switch which is pushed out by the plug inserted into the insertion groove and protrudes into the insertion groove through the upper case of the case; According to the movement of the plug contact terminal and the power supply terminal or And that is configured to include a lock switch terminal according to the technical features.

In addition, according to a preferred embodiment of the present invention, the plug contact terminal is a plate-like structure, is inserted into the engaging jaw formed in the lower plate vertically in contact with the plug terminal as the vertical position, to one side in contact with the plug terminal The switch is open, and the switch includes a push rod protruding into the insertion groove, a block that is an insulator wrapped by the switch terminal, and a coil spring for pushing the block, and a block that is insulated from the open portion of the plug contact terminal. The corresponding spring is positioned, and the leaf spring is positioned to press the plug inserted inside the insertion groove.

In the following, with reference to the accompanying drawings a preferred embodiment of a safety outlet according to the present invention will be described in detail.

In the drawings, Figure 1 is an exploded perspective view showing a safety outlet according to an embodiment of the present invention, Figure 2 is a plan view showing the inside of the lower case of the safety outlet shown in FIG. And Figure 3a is a cross-sectional view before plugging the plug into the safety outlet shown in Figure 1, Figure 3b is a cross-sectional view showing the inside of the safety outlet when plugged in the state of Figure 3a, Figure 4 is a safety shown in Figure 1 This is a plan view showing the relationship when the long conductor is inserted into the outlet and tilted.

1 and 2, the outlet 100 has two pairs of insertion holes 107 formed therein, and a plug contact terminal 110 and a switch terminal therein for each insertion hole 107. 120 and the power supply terminal 130 are located, respectively, the switch terminal 120 is moved up and down to connect or drop the plug contact terminal 110 and the power supply terminal 130.

And the cylindrical plug terminal 5 is positioned in the line contact state with the plug contact terminal 110 in the state of being plugged into the insertion hole 107 of the outlet 100.

Hereinafter, the safety outlet configured as described above will be described in detail.

As shown in FIGS. 1 and 2, the case 101 of the outlet 100 is divided into an upper plate 101H and a lower plate 101L, and the upper plate 101H and the lower plate 101L are fastened. The upper plate 101H is provided with two insertion grooves 105 into which two plugs 1 can be inserted, respectively, and two insertion holes into which the plug terminal 5 is inserted in the bottom surface of each insertion groove 105. 107 is formed, and the push bar 143 of the switch 140 protrudes and is positioned outside the pair of insertion holes 107.

In the case 101 of the outlet 100 configured as described above, when the plug terminals 5 are respectively inserted into the pair of insertion holes 107, the plug 1 body 3 is the outer side of the insertion hole 107. It is configured to press the switch push bar 143 located at.

Meanwhile, four plug contact terminals 110, four switch terminals 120, and two power supply terminals 130 are built in the case 101 in which two insertion grooves 105 are formed. The contact terminal 110 and the four switch terminals 120 are positioned corresponding to each insertion hole 107, and the two power supply terminals 130 are connected to or dropped from other switch terminals which are not formed in pairs and are arranged side by side. Located at the point, the power cable 131 is connected to the two power supply terminals 130, respectively.

As shown in FIG. 1, the plug contact terminal 110 bends a rectangular copper plate having a predetermined length at two points in a length direction to be bent into a 'c' shape, and then bends two parallel sides back inward. For example, in bending two parallel sides inward, one side is bent at the end and the other side is bent at the middle so that the lengths of the two parallel sides are different.

Here, when the plug contact terminal 110 is mounted on the lower plate 101L of the case 101, the bent portion of the short side 111 is bent between the engaging jaws 103 formed on the lower plate by bending the middle portion. Is located. In addition, the locking jaw 103 is located inside the relatively long side 113, so that the plug contact terminal 110 is stably positioned on the bottom plate 101L of the case 101.

In addition, the plug contact terminals 110 are formed in pairs to contact the plug terminals 5, respectively, of the closed side 115 connecting the short side 111 and the long side 113 of the plug contact terminal 110. The inner side comes into contact with the plug terminal 5.

As such, the plug contact terminals 110 supported by the locking projections 103 formed on the lower plate 101L are bent a plurality of times and are positioned vertically, and the inside of the closed side 115 of the plug contact terminals 110 is located. It has an open form.

On the other hand, the switch terminal 120 is located at the side of the plug contact terminal 110. The switch terminal 120 is fixed to the switch 140 configured to vertically move with respect to the lower plate 101L.

Specifically, the switch terminal 120 moves up and down along the switch 140 in a fixed state around the switch 140. When the switch terminal 120 moves downward, the switch terminal 120 comes into contact with the plug contact terminal 110 and moves upward. If it is separated from the plug contact terminal (110). In this case, the switch 140 includes a block 141 surrounded by the switch terminal 120, a cylindrical push rod 143 positioned on an upper surface of the block 141, and a lower portion of the block 141. The block 141 includes a coil spring 145 that provides an elastic force to move upward. Therefore, when the plug terminal 5 is inserted into the insertion hole 107, the push bar 143 is pressed by the plug body 3, and the switch terminal 120 moves downward to be in contact with the plug contact terminal 110. As shown in FIG. 1, the switch terminal 120 does not completely enclose the block 141, but only a portion capable of connecting the plug adhesive terminal 110 and the power supply terminal 130 as it moves. Located.

 As the switch terminal 120 is in contact with the plug contact terminal 110 while moving up and down, the switch terminal 120 is in contact with or dropped from the power supply terminal 130. The power supply terminal 130 is located away from the plug contact terminal 110 and the switch terminal 120 connects or disconnects these plug contact terminals 110 and the power supply terminal 130.

The following describes the operation relationship when the plug is plugged into the safety outlet configured as described above.

As shown in FIGS. 3A and 3B, when the plug terminal 5 is inserted into the insertion hole 107 formed on the upper surface of the case 101, the two plug terminals 5 are disposed in the case 101. It comes in contact with the inside of the closing side 115 of the plug contact terminal 110, the plug body 3 presses the push bar 143 for the outer side of the two insertion holes (107).

When the plug contact terminal 110 and the switch terminal 120 and the power supply terminal 130 come into contact with each other, the switch 140 moves downward while the plug contact terminal 110 and the plug terminal 5 are in contact with each other. Current flows to the power supply.

When the plug 1 is removed from the outlet 100 in this state, the plug terminal 5 is dropped from the plug contact terminal 110 and the switch terminal 120 is also moved upward by the elastic force of the coil spring 145. The current flows only up to the power supply terminal 130.

In the safety outlet 100 operating as described above, when a young child inserts an elongated conductor into the insertion hole, the current does not flow to the conductor unless the push rod 143 is primarily pressed. Furthermore, in order for the current to flow to the human body, the young child must press the two switch push rods 143 together while the conductor is in contact with the two plug contact terminals 110. Therefore, a safety outlet having a primary safety device, that is, a switch 140 is safe, but the safety outlet 100 of the present invention has a conductor contacting the terminal to press the push bar 143 of the switch, whether artificial or intentional. It has a structure that can not be eliminated with (110).

That is, pressing the push rod 143 while inserting two elongated conductors such as nails and chopsticks into the two insertion holes 107 so as to be in contact with the inside of the closed side 115 of the plug contact terminal 110. To do this, the tops of the inserted conductors must be moved closer to each other. That is, in order to press the push rod 143 located outside the insertion hole 107, a pair of conductors inserted into the insertion hole 107 should be inclined close to form a space for pressing the push rod 143.

As described above, when the upper ends of the conductors are inclined toward each other, as shown in FIG. 4, the lower ends of the conductors are separated from the plug contact terminal 110 while being moved in the opposite direction. Even if the push bar 143 is pressed in this state, the lower end of the conductor is separated from the plug contact terminal 110 to be in contact with the block 141 of the switch 140. Block 141 is a plastic that is an insulator and is safe because no current flows through the conductor.

On the contrary, when the upper end of the conductor is opened away from the conductor, the lower end of the conductor remains in contact with the inside of the closed side 115 of the plug contact terminal 110, but the power supply is not able to be pressed because the push rod 143 of the switch 140 cannot be pressed. Is blocked.

On the other hand, since the cylindrical plug terminal 5 and the plug contact terminal 110 having the plate-like structure are in line contact with each other, there is no force for holding the plug terminal 5 inserted into the insertion hole 107. On the contrary, since the coil spring 145 of the switch 140 provides an elastic force in the direction in which the plug 1 is pulled out, the coil spring 145 of the coil spring 145 after a period of time with the plug 1 plugged into the outlet 100. The plug 1 is gradually moved in the direction in which the plug 1 is pulled out by the elastic force, and in order to prevent this, the leaf spring 150 is mounted on the outlet 100 to prevent the plug 1 from being pushed by the coil spring 145. .

The leaf spring 150 has a 'c' shape, protruded convexly inwards of two parallel sides, the closed side of the leaf spring 150 is located between the upper plate and the lower plate of the case 101, the leaf spring ( Both sides of the 150 penetrate the insertion groove 105 of the case 101 and is positioned inside the insertion groove 105. And the closing side of the leaf spring 150 is located by turning the lower plate of the case, the bolt is fastened to the lower plate through the closing side.

As such, both sides of the leaf spring 150 protrude inside the insertion groove 105, and when the plug 1 is inserted into the insertion groove 105, convex portions formed at both sides of the leaf spring 150 are inserted into the plug body ( 3) By pressing both sides, it is possible to prevent the plug 1 from being pulled out by the elastic force of the coil spring 145.

As described in detail above, the safety outlet of the present invention is equipped with a switch as a primary safety device, and secondly, when a young child does not plug the conductor vertically as the plug terminal is in line contact with the plug contact terminal. The contact between the conductor and the plug contact terminal is separated so that the current does not flow to the conductor even when the power is supplied by pressing the switch.

Therefore, by providing a double safety device, there is an advantage that can prevent the electric shock of young children in advance.

The technical idea of the safety socket of the present invention has been described above with the accompanying drawings, but this is only illustrative of the best embodiment of the present invention and is not intended to limit the present invention.

Claims (2)

An insertion groove is formed to insert the plug, and a case upper plate and a case lower plate having two insertion holes formed therein so that a plug terminal can be inserted into an inner bottom surface of the insertion groove; and a cable extending to the case; In the safety outlet comprising a, A plug contact terminal fixed inside the case so as to contact the plug terminal inserted into the insertion hole; Located inside the case, the power supply terminal is connected to the current flows through the cable; And, It penetrates through the upper case of the case and protrudes into the insertion groove and surrounds a switch pressed and moved by the plug inserted in the insertion groove. The plug contact terminal and the power supply terminal are moved according to the movement of the switch. Safety socket comprising a; a switch terminal for connecting or disconnecting. The method of claim 1, The plug contact terminal is a plate-like structure, is inserted into the locking step formed in the lower plate vertically in contact with the plug terminal as the vertical position, and open to one side in contact with the plug terminal, The switch includes a push rod protruding into the insertion groove, a block that is an insulator wrapped by the switch terminal, and a coil spring for pushing the block. The block which is the insulator is located in correspondence with the opening of the plug contact terminal, Safety socket, characterized in that the leaf spring is located in the insertion groove to press the plug inserted.

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