KR101525049B1 - safety concentric plug - Google Patents

Abstract

The present invention relates to a safety outlet comprising: an upper body having a pair of plug insertion holes in the upper end, and installed to be lifted in the upper part of a lower body; a middle body instead into the lower part inside the upper body; a lower body having a plug connection rod in both sides of a lower part, and with which the middle body and the upper body are combined to be lifted in an upper part; an opening and closing member installed to be moved in left and right directions on both sides inside the upper body, and elastically supported through a compression coil spring; a vertical rack piece prepared in the front and the rear inside the middle body; a pinion installed installed in the front and the rear inside the lower body, and having a rack plate connection part in both sides of a vertical rack piece connection part; a blocking rack plate installed on both sides of the rear of the upper part inside the lower body, and in contact with the pinion; and a connecting rack plate installed on both sides of the front of the lower part in the lower body, and in contact with the pinion. The present invention has effects of being easily installed on the existing outlet, preventing children from poking a sharp object into a plug insertion hole for fun, and stably connecting and disconnecting a plug.

Description

{SAFETY CONCENTRIC PLUG}

The present invention relates to a safety outlet, and more particularly, to preventing a safety accident by preventing children from putting foreign matter other than a plug into an outlet opening.

Generally, an outlet is for plugging an electrical product.

The plug socket is generally formed integrally on the wall surface or has a separate independent casing, and the plug insertion hole is exposed on the outer surface regardless of its shape.

If you want to connect the plug of the electric appliance to the outlet and supply the electricity, insert the plug of the plug into the plug insertion hole of the outlet. When you want to move and store the used appliance, the plug is disconnected from the outlet.

Therefore, the plug socket is often in an unmated condition, and the plug insertion hole of the plug socket is exposed.

On the other hand, curious young children playing near the outlet may insert a chopstick or other sharp object into the outlet through the plug insertion hole of the outlet.

If the children insert the foreign substance into the receptacle through the plug insertion hole of the receptacle as a joke, the receptacle may be damaged, and various safety accidents such as electric shock can be caused.

There have been proposed a number of safety outlets that can prevent safety accidents by making it difficult for young children to insert a pointed object into the plug insertion hole of an outlet.

The following Patent Document 1 discloses a safety outlet having a double safety device that can be powered only when a power plug applied to a safety outlet is connected to prevent an electric shock.

In the following Patent Document 2, a double safety device for covering a front surface of a plug accommodating portion in a state that a plate is fixed to a wall of a building is simply fitted and coupled by a single operation, and a cover is mounted, So as to improve the productivity.

However, since the safety outlets such as the patent documents 1 and 2 are new ones replacing existing general outlets, they are not only difficult to manufacture, but also difficult to selectively install only in a home without a child.

Korean Utility Model Publication No. 20-2011-0008954 (published on September 21, 2011) Korean Patent Publication No. 10-1025477 (issued on April 4, 2011)

Thus, most safety outlets according to the prior art can not be applied to existing outlets that have already been constructed or manufactured.

Further, the safety socket according to the prior art has a complicated structure, which makes it difficult to manufacture, can not stably maintain the plug connection state, and there is a problem that there is a possibility of failure.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art and it is an object of the present invention to provide a plug socket which can be easily installed and used in an existing socket and can prevent a young child from piercing a sharp object into a plug- And to provide a safety outlet capable of preventing various safety accidents including damage and electric shock.

It is an object of the present invention to provide a safety outlet that can be easily manufactured with a small number of component parts, maintain a stable plug-in state, and open and close the plug insertion hole smoothly.

According to an aspect of the present invention, there is provided a safety socket comprising: an upper body having a pair of plug insertion holes formed at an upper end thereof and being vertically installed at an upper portion of the lower body; An intermediate body inserted into the lower portion of the upper body; A lower body provided with plug connecting rods on both lower sides thereof and having an intermediate body and an upper body movably coupled to the upper body; An opening / closing member which is installed on both sides of the inside of the upper body so as to be laterally movable, and is elastically supported via a compression coil spring; A vertical rack piece provided on an inner front side and an inner rear side of the intermediate body; A pinion installed at an inner front side and an inner rear side of the lower body and provided with a rack plate connecting portion on both sides of the vertical rack connecting portion; A blocking rack plate that is installed on both sides of the inner rear upper portion of the lower body and is connected to the pinion; And a connection rack plate provided on both sides of the inner lower front side of the lower body and connected to the pinion.

The safety socket according to the present invention includes an opening and closing member operating space and a plug passing hole at the center, and a support guide installed at an inner lower end of the upper body to support the opening and closing member.

The safety socket according to the present invention is characterized in that a connection socket insertion hole is formed in the connection rack plate and a connection socket to be connected to the lower body plug connection rod is inserted into the connection socket insertion hole.

The safety socket according to the present invention is characterized in that a compression coil spring for elastically supporting an upper body and an intermediate body is installed between an inner upper end of the lower body and an inner lower end of the upper body.

The safety socket according to the present invention is characterized in that an elastic engagement protrusion is provided at the lower end of the opening and closing member and a latching groove corresponding to the elastic engagement protrusion of the opening and closing member is formed on both sides of the outer periphery of the projecting pipe provided at the upper center of the lower body .

According to the safety socket according to the present invention, the socket can be easily installed in an existing socket and can be easily used, and can be easily removed from an existing socket if it is not necessary.

Further, according to the safety socket according to the present invention, since the plug insertion hole can be tightly closed, it is possible to prevent a young child from jamming into a socket with a sharp object, and to prevent various safety accidents accordingly do.

Further, according to the safety socket according to the present invention, when the plug is connected, the opening and closing member and the blocking rack plate are transferred through the insertion pressure of both the plug rods, so that the plug can be smoothly connected.

Further, according to the safety socket according to the present invention, the plug connection state can be firmly maintained, and the plug insertion hole can be stably opened and closed when the plug is detached.

1 is a perspective view of a safety outlet according to a preferred embodiment of the present invention;
FIG. 2 is an exploded perspective view of an upper body, an intermediate body, and a lower body according to the preferred embodiment;
3 is an exploded perspective view of the upper body of the safety receptacle according to the preferred embodiment;
FIG. 4 is an exploded perspective view of a lower body of a safety outlet according to the preferred embodiment. FIG.
5 is an exploded perspective view of a connection rack plate and connection socket of a safety outlet according to the preferred embodiment,
6 and 7 are vertical cross-sectional views of a safety socket according to the preferred embodiment of the present invention,
FIG. 8 is a perspective view of a plug socket of a safety outlet according to the preferred embodiment,
Fig. 9 and Fig. 10 are longitudinal sectional views of a plug-in state of a safety outlet according to the preferred embodiment; Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a safety socket according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the following, the terms "upward", "downward", "forward" and "rearward" and other directional terms are defined with reference to the states shown in the drawings.

FIG. 1 is a perspective view of a safety socket according to a preferred embodiment of the present invention, and FIG. 2 is an exploded perspective view of an upper body, an intermediate body, and a lower body of the safety socket according to the preferred embodiment of the present invention.

1 and 2, a safety socket 100 according to a preferred embodiment of the present invention includes an upper body 110, an intermediate body 120, and a lower body 130.

The upper body 110 is installed vertically on the upper portion of the lower body 130 by inserting the plug 300.

A pair of plug insertion holes 111 are formed in the upper end of the upper body 110.

3 is an exploded perspective view of an upper body of a safety outlet according to the preferred embodiment of the present invention.

As shown in FIG. 3, a pair of opening and closing members 140 for opening and closing the plug insertion hole 111 are installed on both sides of the inside of the upper body 110 so as to be movable in the left and right directions.

The top surface of the opening / closing member 140 is formed of a sloped surface 141 having a high inner end and a low outer end.

Between the pair of the opening and closing members 140, there is provided a compression coil spring 142 which elastically supports the opening and closing members 140 in the outward direction.

Therefore, the opening and closing member 140 always seals the plug insertion hole 111, which is not subjected to an external force.

At the lower end of the opening and closing member 140, an elastic coupling protrusion 143 is provided.

In the illustrated embodiment, the opening and closing member 140 is supported by a supporting guide 150 having an opening / closing member working space 151 and a plug passing hole 152 at the center of the opening. However, It is needless to say that the opening and closing member supporting structure may be integrally provided on the body 110. [

The middle body 120 is inserted into the lower portion of the upper body 110.

A pair of vertical rake pieces 160 are provided on the inner front side and the inner rear side of the middle body 120.

The lower body 130 is detachably connected to an existing outlet having a wall or a separate casing, and plug connection rods 131 are provided on both sides of the lower body.

An intermediate body 120 and an upper body 110 are vertically coupled to an upper portion of the lower body 130 and between an upper inner end of the lower body 130 and an inner lower end of the upper body 110, And compression coil springs 132 and 133 for elastically supporting the intermediate body 110 and the intermediate body 120 are installed.

Accordingly, the upper body 110, the intermediate body 130, and the vertical rake piece 160 are maintained in an elevated state unless a separate lowering pressure is applied to the upper body 110 and the middle body 120. [

4 is an exploded perspective view of the lower body according to the preferred embodiment of the present invention.

4, the lower body 130 includes a support plate 130a; And an upper cover 130b provided on an upper portion of the support plate 130. Plug connection rods 131 are provided on both sides of the lower portion of the support plate 130a.

A plug connection hole 133 is formed at both upper ends of the upper cover 130b and elasticity of the opening and closing member 140 is formed on both sides of the outer circumference of the protrusion pipe 134 provided at the upper center of the upper cover 130b. And an engaging groove 135 corresponding to the engaging protrusion 143 is formed.

A pair of pinions 170 connected to the vertical rake piece 160 of the intermediate body 120 are installed in the inner front and inner rear of the lower body 130.

The pinion 170 includes a vertical rack piece connecting portion 171 provided at the center thereof; And a rack plate connecting portion 172 provided on both sides of the vertical rack connecting portion 171.

The pinion 170 is formed such that the diameters of the blocking ratchet connection portions 172 on both sides thereof are larger than the diameter of the central vertical ratchet piece connecting portion 171.

A blocking rack plate 210 connected to the pinion 170 is installed on both sides of the inner rear upper portion of the lower body 130 so as to be movable in forward and backward directions.

The blocking rack plate 210 is provided with a rack 211 at the lower end and is connected to the rack plate connecting portion 172 of the rear pinion 170 among the front and rear pinions 170.

A connection rack plate 220 connected to the pinion 170 is installed on both sides of the inner lower front side of the lower body 130 so as to be movable in the forward and backward directions.

The connecting rack plate 220 is provided with a rack 221 at an upper end thereof and is connected to the rack plate connecting portion 172 of the front pinion 170 among the front and rear pinions 170.

A connection socket insertion hole 222 is formed in the connection rack plate 220.

A connection socket 230 connected to the lower body plug connection rod 131 is inserted into the connection socket insertion hole 222 of the connection lock plate 220.

5 is an exploded perspective view of a connection rack and a connection socket of a safety outlet according to the preferred embodiment of the present invention.

The safety outlet 100 according to the preferred embodiment of the present invention is installed in an existing outlet which is integrally installed on a wall surface or has a separate casing.

That is, when a pair of plug connecting rods 131 provided at a lower portion of the lower body 130 is inserted into a plug insertion hole of an existing socket, it can be easily installed in an existing socket.

The safety receptacle 100 according to the preferred embodiment of the present invention closes both receptacle insertion holes 111 of the upper body 110 with a pair of opening and closing members 140 elastically supported by a compression coil spring 142 It is difficult to open the outlet insertion hole 111 of the upper body 110 unless a sharp foreign object is simultaneously inserted into both the socket-outlet insertion holes 111. [

When the safe outlet 100 according to the preferred embodiment of the present invention is installed in an existing outlet, the plug insertion hole of the existing outlet is sealed and the plug insertion hole 111 of the upper body 110 is exposed.

Even if young children insert a pointed object such as a chopstick into one of the plug insertion holes 111 of the upper body 110 in the state where the safety receptacle 100 is installed, Since the opening and closing member 140 that hermetically seals the upper body 110 is elastically supported in the outer direction of the upper body 110 through the compression coil spring 142, the plug insertion hole 111 is fully opened and a sharp object is inserted toward the lower body 130 It becomes very difficult to do.

Even if the compression coil spring 142 is compressed and moved inward of the upper body 110 of the one opening and closing member 140 to open the plug insertion hole 111 with a strong force input, The object to be inserted into the plug insertion hole 111 is blocked by the blocking rack plate 210 located at the lower portion of the plug insertion hole 111, so that it can no longer be lowered.

The safety socket 100 according to the preferred embodiment of the present invention primarily includes the opening and closing member 140 for opening and closing the plug insertion hole 111 of the upper body 110 and the elastic supporting force of the compression coil spring 1420 So that the child can not insert the pointed object into the plug insertion hole 111 of the upper body 110.

It is also possible to prevent various safety accidents such as electric shock by blocking the sharp object passing through the plug insertion hole 111 of the upper body 110 and the opening and closing member 140 with the blocking rack plate 210 do.

Figs. 6 and 7 are longitudinal sectional views of a plug-in unsconnected state of the safety socket according to the preferred embodiment of the present invention.

6 and 7, when a safety outlet 100 according to a preferred embodiment of the present invention is installed in an existing outlet, when a plug 300 of an electrical product is to be connected, a pair of plug rods 310 are simultaneously inserted into the plug insertion hole 111 of the upper body 110 to press the opening and closing member 140 so that both the opening and closing members 140 compress the compression coil spring 142, So that both the plug insertion holes 111 are completely opened and the plug rod 310 can enter the lower body 130.

The upper body 110 is lowered and the middle body 120 is moved together with the upper body 110 after the lowering of the upper body 110 proceeds to some extent .

The vertical rake piece 160 provided inside the intermediate body 120 rotates the pinion 170 connected to the vertical rake piece 160 during the descending of the middle body 120 and is connected to the upper end of the rear pinion 170 The connection rack plate 220 and the connection socket 230 connected to the lower ends of the blocking rack plate 210 and the rear pinion 170 are moved rearward.

When the blocking ratchet piece 210 is moved backward, the plug rod 310 of the plug 300 enters into the lower body 130 and can be continuously lowered toward the connection socket 230, The connection socket 230 inserted into the connection socket insertion hole 222 of the connection rack plate 220 is connected to the plug rod 131 of the lower body 130, And is positioned on the descending entry path of the second arm 310.

Therefore, the lower end of the plug rod 310 which enters into the lower body 130 and continuously descends can be inserted into the connection socket 230 connected to the plug rod 131.

When the plug socket 310 of the plug plug 310 is connected to the plug socket 310 of the plug 300 through the plug socket 131 and the connection socket 320 of the lower body 310, .

Fig. 8 is a principal perspective view of a plug-in state of a safety socket according to the preferred embodiment, and Figs. 9 and 10 are longitudinal sectional views of a plug socket of a safety socket according to the preferred embodiment.

The blocking member 140 which is compressed in the inward direction by the plug rod 310 is lowered together with the upper body 110 in the process of connecting the plug 300. At this time, The upper end of the lower body 130 is connected to the upper end of the lower end of the lower body 130. The lower end of the lower end of the lower body 130 is coupled to the lower end of the lower end of the lower body 130,

Therefore, the upper body 110 and the intermediate body 120 can stably maintain the lowered state despite the upward elastic force of the compression coil springs 132 and 133. [

When the user desires to remove the plug 300 from the safe outlet 100 after the use of the electric appliance is finished, the user may hold the safety receptacle 100 with one hand and hold the plug 300 with the other hand, So that the plug 310 of the plug 300 is separated from the connection socket 230 and then drawn out of the upper body 110 through the plug insertion hole 111 of the upper body 110.

When the plug rod 310 of the plug 300 rising in the connection and disconnection process of the plug 300 passes the blocking member 140, the blocking member 140 is pressed by the elastic force of the compression coil spring 142, (110), thereby closing the plug connection hole (111) of the upper body (110).

When the blocking member 140 is moved outwardly, the elastic locking protrusions 143 of the blocking member 140 are separated from the locking recesses 135 of the lower body 130, The upper body 110 and the middle body 120 are lifted to the assembled state of the plugs in FIGS. 6 and 7 by the elastic force of the compression coil springs 132 and 133 provided between the bodies 130.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

For example, although the safe outlet 100 according to the preferred embodiment of the present invention is detachably installed in an existing outlet, a casing of a conventional wall outlet or a stand-alone outlet can be designed and modified to be integrated with an existing outlet.

100: Safety outlet
110: upper body
120: intermediate body
130: Lower body
140: blocking member
150:
160: Vertical track
170: pinion
210: Blocking rack plate
220: Connection rack plate
230: connection socket

Claims (5)

An upper body 110 formed with a pair of plug insertion holes 111 at an upper end thereof and vertically installed at an upper portion of the lower body 130;
An intermediate body 120 inserted into the lower portion of the upper body 110;
A lower body 130 on which plug connecting rods 131 are provided on both lower sides and upper and lower bodies 120 and 110 are vertically coupled to each other;
An opening and closing member 140 installed to be movable in left and right directions on both sides of the inside of the upper body 110 and elastically supported through a compression coil spring 142;
A vertical rake piece 160 provided at an inner front and an inner rear of the middle body 120;
A pinion 170 installed at an inner front and an inner rear of the lower body 130 and provided with rack plate connecting portions 172 on both sides of the vertical rack connecting portion 171;
A blocking rack plate 210 installed on both sides of the inner rear upper portion of the lower body 130 and connected to the pinion 170;
And a connection rack plate (220) installed on both sides of the inner lower front side of the lower body (130) and connected to the pinion (170).
The method according to claim 1,
A support guide 150 provided at an inner lower portion of the upper body 110 and provided with an opening and closing member working space 151 and a plug passing hole 152 at the center thereof and supporting the opening and closing member 140; A safety outlet characterized by comprising. The method according to claim 1,
A connecting socket inserting hole 222 is formed in the connecting rack plate 220 and a connecting socket 230 connected to the lower body plug connecting rod 131 is inserted into the connecting socket inserting hole 222 Safe outlets.
The method according to claim 1,
And compression coil springs 132 and 133 for elastically supporting the upper body 110 and the intermediate body 120 are installed between the inner upper end of the lower body 130 and the lower inner end of the upper body 110 Safe outlets.
The method according to claim 1,
An elastic coupling protrusion 143 is provided at the lower end of the opening and closing member 140 and an elastic coupling protrusion 143 is provided at both sides of the protrusion pipe 134 provided at the upper center of the lower body 130, (135) corresponding to the recess (143).

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