KR20130039691A - Adaptor for preventing plug breakaway - Google Patents

Abstract

PURPOSE: An adapter for plug separation prevention is provided to push a plug in a socket, thereby connecting the plug and the socket. CONSTITUTION: When a user pulls a plug(120) to the outside of a socket(110), the plug is retreated. When a connection pin(121) is moved to the outside of a connection hole, the connection pin is separated from a connection terminal. Power connection between the plug and the socket is released by a constant gap between connection pins. An adaptor(100) maintains a state of inserting the adaptor into a plug insertion hole(111) of the socket by bonding force of a combination protrusion(113) and a combination groove(104).

Description

ADAPTER FOR PREVENTING PLUG BREAKAWAY [0002]

More particularly, the present invention relates to an adapter for preventing the plug from falling off, and more particularly, it relates to an adapter for preventing disengagement of a plug from an outlet, And to prevent a safety accident from occurring due to exposure of a connection part of the outlet.

Generally, an electric / electronic product using electric power includes a power line and a plug connected to an end of the power line, and the plug is connected to a power outlet provided on a wall surface or the like to supply power to the product.

The structure of a conventional outlet and plug is shown in Fig.

As shown in the drawing, a conventional socket 10 is provided with a pair of connection holes 12 in a plug insertion port 11, and a plug 20 having a pair of connection pins 21 in front . When the plug 20 is pushed into the plug insertion port 11 of the receptacle 10, the connection pin 21 is inserted into the connection hole 12 to connect the power source, and the plug 20 is pulled, 11, the connection pin 21 and the connection hole 12 are disconnected to cut off the power supply.

On the other hand, it is known that by separating the power plug from the outlet when the electric / electronic product is not used, it is possible to save about 10% energy consumption in each household. Accordingly, a plug of an unused electric / electronic product is pulled out of the outlet, which is a simple and effective energy saving method. Also, it is preferable to separate the plug from the outlet so as to prevent a short circuit, a short circuit, and a fire caused by the short circuit.

In order to disconnect the plug 20 from the receptacle 10 in order to cut off the power supply connection, when the plug 20 is pulled out, the connection pin 21 is drawn out of the connection hole 12, Is released to the outside of the plug inserting opening 11, so that the plug 20 and the receptacle 10 are completely separated.

The plug 20 and the power line 130 separated from the receptacle 10 are worn on the floor to deteriorate the aesthetic appearance and obstruct the traveling of the surrounding area, There was an inconvenience that needed cleanup. Further, in order to reconnect the plug 20 to the receptacle 10, since the separated plug 20 is taken up and inserted into the plug inserting opening 11 of the receptacle 10, There is a problem that reconnection of the portable terminal 20 is very inconvenient.

Further, since the connection hole 12 of the receptacle 10 is exposed to the outside when the plug 20 is detached, it is possible to prevent the bulging of the plug 20 by removing the conductive foreign matter into the connection hole 12 of the receptacle 10 There is a high possibility that a fire accident due to an electric shock or a short circuit may occur.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a plug connector which can maintain a state in which a plug is connected to a receptacle even when a connection pin of a plug and a connection hole of a receptacle are released, Which prevents the occurrence of an accident due to exposure of a connection hole of a socket outlet, and which can solve the problem of inconvenience and aesthetics caused by disconnection of the plug and the power source line on the floor.

The present invention has the following structure in order to achieve the above object.

The plug detachment prevention adapter of the present invention is composed of an adapter including a first engaging portion inserted into a plug inserting port of a receptacle and a second engaging portion extended to one side of the first engaging portion and engaged with the plug, The first coupling part is provided with a pair of connection connecting pins inserted into connection holes of the socket and connected to a power source, and the second coupling part is provided with a connection insertion port through which the plug is movably inserted and coupled, A pair of connection holes into which the connection pins of the plug are inserted are provided on the inner side of the connection connection holes, and connection terminals for connecting the connection pins inserted in the connection connection holes to the connection connection pins.

And the adapter and the receptacle are integrally formed or the adapter and the plug are integrally or separately formed.

In addition, the adapter is provided with first departure preventing means for preventing the adapter from being released to the outside of the plug inserting opening of the receptacle with respect to the first engaging portion.

The adapter includes a second detachment preventing means for preventing detachment of the plug from the connection inserting port with respect to the second engaging portion.

And at least one of the first departure preventing means and the second departure preventing means includes a projection or groove that provides a fastening force by the engagement.

At least one of the first departure preventing means and the second departure preventing means includes a hook type fastening member which is elastically deformed in accordance with external force applied to provide a fastening force by fastening.

At least one of the first departure preventing means and the second departure preventing means includes a movable fastening member that provides a fastening force by engaging and detaching in accordance with an external force applied by the elasticity of the spring.

At least one of the first departure prevention means and the second departure prevention means includes a screw engagement portion which is engaged or disengaged according to the rotation direction.

Also, at least one of the first departure preventing means and the second departure preventing means includes a fastening protrusion and an a-shaped fastening groove that are fastened or released from each other through longitudinal movement and rotation.

At least one of the first departure preventing means and the second departure preventing means includes an adhesive or a bonding material for providing a bonding force so as to be detachable by applying a force of a predetermined strength or more, or a friction material for providing a frictional force.

Further, the adapter is provided with guiding means for restricting the rotation so that the connection position of the connection pin to the connection connection hole is maintained while guiding the movement of the plug inserted into the connection insertion hole of the second engagement portion.

The adapter includes a guide groove formed at a position corresponding to the inner circumferential surface of the connection insertion hole and having a predetermined angle along the arc, and an incision groove connected to the guide groove and into which the projection of the plug is inserted from the outside.

The adapter may further include a sliding groove formed along one side surface of the connection port of the second coupling portion, a guide member inserted in the sliding groove and guiding the plug to be inserted into the sliding groove, And a retaining plate for retaining the plug inserted in the retaining plate.

The guide member is composed of a pair of guide plates having a shield plate inserted in the sliding groove and rotating together with the rotation of the inserted plug and a guide hole extending in a direction perpendicular to the shield plate to guide the plug .

Further, the adapter is further provided with confirmation means for confirming the insertion / removal state of the plug.

And the checking means is a lamp.

The checking means includes an elastic piece formed by grooves on the outer circumferential surface of the plug, elastic protrusions protruding from the elastic piece, and first and second holes spaced apart from each other in the advancing direction of the plug.

The confirmation means is further provided with a spring for supporting the plug and the adapter.

According to the present invention configured as described above has the following effects.

(1) Even if the connection pin of the plug is pulled out of the connection hole of the outlet to cut off the power supply connection, the plug is kept connected with the outlet through the adapter, so that the plug and the power supply line are not wrapped around the outlet, So that it does not interfere with the traveling around, and it is possible to eliminate the inconvenience of plug and power line cleaning.

(2) Since the plug is always stuck in the socket and can be connected to the socket with a simple operation of pushing the plug toward the socket, the connection of the plug to the socket becomes more convenient.

(3) Even when the connection pin of the plug is drawn out of the connection hole of the socket, the connection hole is shielded from being exposed to the outside by the plug coupled to the socket, so that the electric shock or fire caused by inserting the foreign substance into the connection hole Can be prevented.

1 is a perspective view showing a conventional power outlet and a plug;
FIG. 2 is a perspective view showing an embodiment of the plug detachment prevention adapter according to the present invention. FIG.
Fig. 3 is a perspective view showing the adapter shown in Fig. 2, separated from a plug and an outlet; Fig.
Fig. 4 is a perspective view of the adapter shown in Fig. 2 in a state of being engaged with a plug; Fig.
5 is a cross-sectional view showing a state where a plug is connected to an outlet through an adapter according to the present invention;
Figure 6 is a cross-sectional view showing a state in which the plug is disconnected from the outlet through the adapter according to the present invention.
FIG. 7 is a cross-sectional view showing a state where a plug is disconnected from an outlet through an adapter according to the present invention; FIG.
8 is a perspective view showing another embodiment of the present invention.
9 and 10 are diagrams showing an operation state of another embodiment of the present invention shown in Fig.
11 to 13 show another embodiment according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. These embodiments are provided to explain in detail the present invention to those skilled in the art. Accordingly, the shape of each element shown in the drawings may be exaggerated to emphasize a clearer description.

The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by terms. Terms are used only for the purpose of distinguishing one component from another.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

2 to 6, the adapter 100 of the present invention is detachably coupled between the receptacle 110 and the plug 120. As shown in FIG.

The receptacle 110 is a conventional one connected to a power source and has one or a plurality of plug inserting openings 111 into which a normal plug 120 or the adapter 100 is insertably inserted, A pair of connection holes 111 in which a power terminal is embedded are provided.

The plug 120 is a conventional one connected to an apparatus using electric power through a power line 130 and includes a conventional socket 110 or a pair of connection pins 121 connected to the adapter 100, . The connection pin 121 is connected to the power supply line 130 through the inside of the plug 120 and connected to the connection hole 111 of the socket 110 or the connection hole 106 and may be connected to a power source.

The adapter 100 of the present invention is provided with a first coupling portion 101 coupled to the socket 110 and a second coupling portion 102 coupled to the other side.

The first engaging portion 101 is detachably inserted into the plug inserting port 111 of the receptacle 110 and comprises a pair of connecting connecting pins 103 projecting forward.

The connection connection pin 103 is inserted into the connection hole 112 of the socket 110 and is connected to a power source.

The first engaging portion 101 and the connecting connecting pin 103 are preferably formed to have the same dimensions as the normal plug 120 and the connecting pin 121 so as to be connectable to the conventional receptacle 110. [

The second coupling portion 102 is formed of a coupling insertion hole 108 through which the plug 120 is detachably inserted and is movably coupled with the plug 120 inserted therein, A pair of connection connection holes 106 into which the connection pins 121 of the plug 120 are inserted are provided inside the insertion port 108. [

The connection connection hole 106 is provided with a connection terminal 107 for connecting the connection pin 121 inserted with the connection connection pin 103.

As shown in the figure, the connection terminal 107 may be integrally formed at the rear end of the connection connection pin 103 and may be provided in the form of a female connector having a circular cross section into which the connection connection pin 103 is inserted, And may be formed as a separate member connected to the connection connection pin 103 or may be provided in various shapes such as an arc shape or a plate shape in contact with a part of the connection connection pin 103. [

The first coupling portion 101 is capable of being inserted into and drawn out from the plug insertion port 111 of the receptacle 110 while pulling the plug 120 to release the connection between the plug 120 and the adapter 100 The connection pin 121 is not detached to the outside of the plug insertion port 111 when a force is applied to pull it out of the connection connection hole 106 of the adapter 100. [

To this end, the first engagement preventing portion 101 is provided with a first unfastening means (not shown) for providing a fastening force of not less than a predetermined strength but a greater fastening force than a force required for disconnection between the plug 120 and the adapter 100 Respectively.

The first departure prevention means may have various coupling structures that can easily attach and detach and provide a predetermined fastening force. In the illustrated embodiment, as the first departure prevention means, a coupling protrusion 113 is provided in the plug insertion port 111 of the receptacle 110, and the coupling protrusion 113 is coupled to the first coupling portion 101 However, the coupling protrusion 113 may be a conventional one formed in the conventional receptacle 110. The coupling protrusion 113 may be formed in the same manner as the coupling protrusion 113 of FIG.

In addition, the plug 120 can be inserted into and drawn out from the connection and insertion port 108, and the inserted plug 120 can move within a predetermined range, When the plug 120 is applied, second release preventing means for preventing the plug 120 from being released to the outside is provided.

The second departure prevention means may have a variety of coupling structures that are simple to attach and detach and provide a predetermined fastening force. In the illustrated embodiment, the stopper protrusion 105 protruded inward is provided as the second departure prevention means, which is engaged with the inclined portion 122 whose cross-sectional area of the plug 120 is reduced.

Although not shown in the drawing, the connecting pin 121 is inserted into the connecting insertion hole 108 while guiding the movement of the plug 120 inserted therein, so that the connection position of the connecting pin 121 with respect to the connecting connecting hole 106 is maintained. It is preferable that guide means for restricting the rotation between the guide portions is provided. For example, a guide protrusion or a guide groove may be formed on the inner surface of the connection port 108 along the moving direction of the plug 120.

Connection and disconnection between the receptacle 110 and the plug 120 through the adapter 100 of the present invention configured as described above are performed as follows.

4, after the plug 100 is first connected to the adapter 100, the adapter 100 is inserted into the socket 110, or the adapter 100 is first inserted into the socket 110, 100, the plug 120 is connected to the receptacle 110 through the adapter 100 as shown in Fig. That is, as the first engaging portion 101 of the adapter 100 is inserted into the plug inserting hole 111 of the receptacle 110, the connecting connecting pin 103 is inserted into the connecting hole 112 and connected to the power source terminal, The plug 120 is inserted into the connection insertion hole 108 provided in the second engagement portion 102 of the adapter 100 so that the connection pin 121 is inserted into the connection connection hole 106, Respectively.

6, when the plug 120 is pulled out of the socket 110 by hand and the plug 120 is retracted as shown in Fig. 6, the connecting pin 121 is pulled out of the connecting hole 111 And is separated from the connection terminal 107 to form a constant gap t so that the power connection between the plug 120 and the receptacle 110 via the adapter 100 is released.

At this time, the adapter 100 maintains the inserted state in the plug insertion port 111 of the receptacle 110 by the coupling force of the coupling protrusion 113 and the coupling groove 104.

Further, after the plug 120 is retracted to some extent, the movement of the plug 120 is limited by the stop protrusion 105, so that the plug 120 is kept coupled to the adapter 100.

In this state, when the plug 120 is pushed toward the inside of the adapter 100, the plug 120 is advanced, the connection pin 121 is inserted into the connection hole 106, and the plug 120 And the outlet 110 are connected to each other.

If the adapter 100 or the plug 120 is pulled by applying a stronger force than the engaging protrusion 113 and the engaging groove 104 or the stopper protrusion 105, The connection between the plug 100 and the plug 100 or the adapter 100 is released to completely separate each part.

As described above, even if the plug 120 is pulled and the power supply connection between the plug 120 and the socket 110 is cut off, the plug 120 remains connected to the socket 110 via the adapter 100 The problem of the conventional cosmetic problem due to the spread of the plug and the power line separated from the socket 110 on the floor and the troubles due to troubles and troubles in the vicinity of the surroundings can be solved.

Since the plug 120 can be connected to the receptacle 110 only by a simple operation of pushing the plug 120 whose power connection is released to the inside of the adapter 100, The power connection of the plug 120 to the receptacle 110 becomes very convenient, compared with the prior art in which the plug connector 120 is inserted into the receptacle 110 at the connection position.

Here, the adapter 100 is further provided with confirmation means for allowing the user to check the mutual connection state of the plug and the socket at the time of energization.

The lamp 109 may be used as a first verification means.

That is, when a small-sized lamp such as an LED is installed outside the adapter 100 and the installed lamp is electrically connected to the connection contact hole or the connection terminal side, the plug contacts the socket, This allows you to easily check whether the plug is plugged into an outlet.

Further, it is also possible to confirm by using an elastic body as the confirmation means as shown in Fig.

That is, as another embodiment of the checking means, the checking means 140 may form a groove 141 having a certain length with respect to the opposed position of the outer surface of the plug 120, The elastic piece 142 is formed horizontally and the elastic piece 142 protrudes outward at the end of the elastic piece 142, and the outer line of the protrusion is provided with the elastic protrusion 143 having a natural curved shape.

Then, the first and second holes 144 and 145 are formed on the outer circumferential surface of the adapter 100 so that the elastic protrusion 143 can be inserted and retracted in accordance with the forward and backward movement of the plug. At this time, the interval between the first and second holes 144 and 145 is the same as the interval when the plug moves back and forth.

For example, when the plug 120 is retracted and the connection with the outlet is released, the elastic protrusion 143 is positioned on the side of the second hole 145 so that the user confirms the disconnection state through the position of the elastic protrusion from the outside , When the plug is advanced and connected to the outlet, the elastic protrusion 143 located in the second hole 145 moves to the first hole 144 to be seated, thereby confirming the connection with the outlet .

Further, the elastic protrusion 143 can be elastically operated by the elastic piece 142, so that the elastic protrusion 143 can be inserted into the first hole and the second hole with a predetermined pressure when the adapter is moved forward and backward. This makes it possible to prevent the plug from being easily detached from the outlet.

It is also possible to provide a spring 150 between the adapter and the plug in order to facilitate the movement of the plug. In order to accommodate the spring, it is preferable that a spring groove 151 is formed in the plug. However, it is also possible to form a spring groove in the adapter although not shown in the drawing.

Thus, the connection state of the plug with the socket can be checked through the checking means, so that unnecessary power consumption can be prevented by the user.

Since the connection hole 112 of the receptacle 110 is shielded from being exposed to the outside by the adapter 100 and the plug 120 even when the power supply connection of the plug 120 is released, It is possible to prevent the occurrence of an electric shock or a fire accident due to inserting a foreign substance or the like.

In addition, the adapter 100 of the present invention has an advantage that the conventional socket 110 and the plug 120 can be used without modification.

Meanwhile, in the present invention, the first departure prevention means and the second departure prevention means are not limited to the projections and grooves structured to engage with each other and provide a clamping force as illustrated in the above embodiment, Or by using a variety of structures or materials that provide a cohesive or clamping force that can be released by simple actuation.

For example, as the first departure prevention means or the second departure prevention means, there may be provided a hook type fastening member which provides a releasable fastening force while being deformed by its own elasticity, And may be provided with a movable fastening member which provides a releasable fastening force in accordance with an external force. Further, a threaded portion for engaging or disengaging according to the rotation direction may be provided, or a fastening protrusion and an a-shaped groove may be provided for fastening or releasing each other through longitudinal movement and rotation. In addition, an adhesive or a bonding material that provides a bonding force so as to be separable when a force of a predetermined strength or more is applied, or a friction material that provides a frictional force may be provided.

Some of the components constituting the first departure preventing means and the second departure preventing means may be composed of a coupling member such as a stone, a concave, or a metal piece, which has been previously provided to increase the coupling force to a conventional socket or plug.

In the above-described embodiment of the present invention in which the plug is inserted into and detached from the socket while the plug is inserted into the adapter, an embodiment in which the socket adapter is integrally formed will be described below.

8 to 10 illustrate that the outlet and the adapter are integrally formed according to the present invention. In this case, the shapes of the preceding adapters are similar, but in the state where the first coupling portion 101 is arranged in the adapter 100 So that the second coupling portion 102 is coupled to the socket 110.

That is, the second coupling part 102 is provided to protrude slightly to one side of the socket 110, and the second coupling part 102 is formed with a coupling insertion hole 108 having an inner peripheral side opened.

A stopping protrusion 105 is formed at the end of the connection insertion hole 108 and a pair of cutting grooves 105a are formed so as to face each other inside the stopping protrusion 105. The cutting grooves 105a, And a guide groove 105b for connecting the connection insertion hole 108 is formed in the longitudinal direction of the connection insertion hole 108.

The protrusion 123 formed on the plug 120 is inserted into the cutout groove 105a so that the plug 120 is inserted into the connection port 108. [

The protrusion 123 of the inserted plug 120 enters the guide groove 105b connected via the cutout groove 105a and the connection pin 121 of the plug 120 is inserted into the connection insertion hole 108, And is inserted until the plug can no longer move forward.

In this state, when the plug 120 is rotated in the arrow direction (counterclockwise direction) as shown in FIG. 8, the connection hole 112 and the inserted connection pin 121 coincide in a beveled state. At this time, the guide groove 105b can adjust the angle? Of rotation of the projection 123 within a range that does not coincide with the connection hole 112.

Although not shown in the present embodiment, when the connection pin 121 reaches the end of the connection insertion hole 108, the guide groove 105b is formed in the guide groove 105b may be formed so as to extend from the connection hole.

Further, a lamp (not shown) may be provided on the outer circumferential surface of the second engagement portion 102 to confirm the connection state of the connection pin and the connection hole.

The plus coupled as described above moves along the connection insertion port 108 of the second coupling portion 102 and the connection pin 121 can concurrently connect and disconnect with the connection hole 112, The positive electrode 120 may be detached from the second coupling portion 102 as opposed to the coupling process.

Further, when the connection pin 121 is detached from the connection hole 112, it is possible to prevent the connection pin 121 from being formed by forming the gap t.

On the other hand, in this embodiment, the outlet and the adapter are integrally formed. However, it is also possible to separate the plug and the adapter in a state in which the outlet and the adapter are separated as in the previous embodiment.

That is, when the embodiment shown in Figs. 2 to 6 is combined with the embodiment shown in Figs. 8 to 10, the cutout groove and the guide groove are formed in the second engagement portion of the adapter separated from the outlet, .

It is also possible to separate by using the second departure preventing means, and the first leaving boiling point and the second departure preventing means may have not only protruding and grooved structures which engage with each other and provide fixing force as exemplified in the embodiment, But may be constructed using a variety of structures or materials that provide a cohesive or clamping force capable of releasing through a simple operation or by applying a force of a predetermined strength or more.

For example, as the second departure prevention means, there may be provided a hook type fastening member that provides a releasable fastening force while being deformed by its own elasticity, A movable fastening member for providing a releasable fastening force may be provided. Further, a threaded portion for engaging or disengaging according to the rotation direction may be provided, or a fastening protrusion and an a-shaped groove may be provided for fastening or releasing each other through longitudinal movement and rotation. In addition, an adhesive or a bonding material that provides a bonding force so as to be separable when a force of a predetermined strength or more is applied, or a friction material that provides a frictional force may be provided.

In addition, some of the components constituting the second departure prevention means may be formed of a fastening member such as a stone, a concave, or a metal piece, which has been previously provided to increase the coupling force to a conventional outlet or plug.

11 to 14, another embodiment of the present invention shows that the second coupling portion 102 of the adapter is integrally formed in the receptacle, and the adapter is connected to the second coupling portion 102 of the second coupling portion 102, A guide member 140 which is inserted into the sliding groove 105e to guide the plug 120 inserted into the sliding groove 105e and which is inserted into the sliding groove 105e, And a latching plate 105c formed at an end of the connector insertion hole 108 and supporting the plug 120 inserted into the connection insertion hole 108. [

The guide member 140 may include a shield plate 141 that rotates in accordance with the rotation of the plug 120 inserted into the sliding groove 105e and extends in a direction perpendicular to the shield plate 141, And a pair of guide plates 143 having guide holes 142 for guiding the plugs.

A guide hole 142 formed in the guide plate 143 is disposed on an extension line with an insertion hole 105d formed by cutting a part of the latching plate 105c to be connected to the connection insertion port 108 side.

It is preferable that an opening shape of the engagement plate 105c and the insertion hole 105d formed at one side of the connection insertion opening 108 of the second engagement portion 102 is formed to correspond to the shape of one side of the plug 120 . Since the shape of the plug 120 to be inserted may have a shape different from that shown in the figure, it may be formed in a different shape, for example, a rectangular shape instead of a cylindrical shape, or a shape corresponding to an elliptical shape Because.

That is, when the plug 120 is inserted into the connection insertion port 108 while the plug 120 is positioned at the connection insertion port 108 of the second engagement portion 102, 123 are inserted into the insertion hole 105d and enter the connection insertion hole 108 along the guide hole 142 located on the extension of the insertion hole 105d.

The inserted plug is advanced until the protruded connection pin 121 is positioned at the inner end of the connection insertion port 108. When the connection pin is positioned at the end, the protrusion 123 is positioned in the guide hole 142 The plug 120 is fully inserted into the connection insertion hole 108. [

When the plug 120 is rotated clockwise or counterclockwise, the protrusion 123 of the guide member 140 of the guide member 140 is pressed along the rotation direction of the plug, Is connected to the blocking plate 141 to slide the blocking plate 141 along the sliding groove 105e.

The inserted hole 105d in which the projection is inserted and the guide hole 142 form a bevel angle with respect to the rotated plug 120 so that the guide hole 142 is blocked by the stop plate 105c, The projection 123 positioned in the projection 142 is prevented from being separated by the engagement plate 105c.

In this state, when the plug 120 is advanced, the connection hole 112 into which the connection pin 121 is inserted is positioned at the forward position, so that the connection pin is inserted into the connection hole to be energized.

At this time, since the lamp described in the previous embodiment is provided outside the second coupling portion, the connection state can be confirmed by the user through the lamp at the same time as the connection pin and the connection hole are energized.

Conversely, if the connection is canceled, the connection is canceled when the connection direction is reversed, and the lamp is turned off as the lamp is turned off to easily check the connection state.

When the plug is detached from the adapter, it is rotated in a direction opposite to the direction in which the plug was initially rotated so that the guide hole and the insertion hole in which the protrusion is positioned can be positioned on the same line and then released.

In the embodiment shown in Figs. 8 to 13, although the configuration shown in Fig. 7 is not shown in detail, it is a matter of course that the configuration as described above can be configured.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

That is, those skilled in the art without departing from the technical gist of the present invention can be variously modified or modified, as well as such changes or modifications, the technical scope of the present invention in the interpretation of the claims. It is hard to say that I am within.

100: adapter 101: first coupling portion
102: second coupling portion 103: connection connecting pin
104: engaging groove 105: stopping projection
105a: incision groove 105b:
106: Connection connection hole 107: Connection terminal
108: connection port 110: outlet
111: plug insertion hole 112: connection hole
113: engaging projection 120: plug
121: connecting pin 122:
130: power line 140: confirmation means
141: groove 142: elastic piece
143: elastic projection 144: first hole
145: second hole 150: spring

Claims (19)

And an adapter including a first engaging portion inserted into and engaged with a plug inserting port of the receptacle and a second engaging portion extending from one side of the first engaging portion and engaged with the plug,
Wherein the first coupling portion is provided with a pair of connection connecting pins inserted into connection holes of the socket,
The second coupling part includes a connection insertion hole through which the plug is movably inserted and provided with a pair of connection connection holes into which the connection pin of the plug is inserted, and the inside of the connection connection hole. Plug disconnection prevention adapter, characterized in that provided with a connection terminal for energizing the connection pin inserted in the connection connecting pin. The method of claim 1,
Wherein the adapter and the receptacle are integrally formed. The method of claim 1,
Wherein the adapter and the plug are integrally or separately formed. The method according to claim 1 or 3,
The adapter has a first separation preventing means for preventing the adapter from being separated out of the plug insertion hole of the outlet relative to the first coupling portion. The method according to any one of claims 1 to 3,
The adapter has a plug separation prevention adapter, characterized in that the second separation preventing means for preventing the plug from being separated to the outside of the connection insertion hole with respect to the second coupling portion. The method of claim 5,
Wherein at least one of the first departure preventing means and the second departure preventing means includes protrusions or recesses that provide a fastening force by engaging. The method of claim 5,
Wherein at least one of the first departure prevention means and the second departure prevention means includes a hook type fastening member which is elastically deformed according to external force applied to provide a fastening force by fastening. The method of claim 5,
Wherein at least one of the first departure preventing means and the second departure preventing means includes a movable fastening member that provides a fastening force by engaging and retracting operation in accordance with an external force applied by the elasticity of the spring, Disengagement prevention adapter. The method of claim 5,
Wherein at least one of the first departure prevention means and the second departure prevention means includes a screw engagement portion which is engaged or released in the rotation direction. The method of claim 5,
Characterized in that at least one of the first departure prevention means and the second departure prevention means includes a fastening protrusion which is fastened or released with respect to each other through longitudinal movement and rotation and a fastening groove . The method of claim 5,
At least one of the first release preventing means and the second release preventing means is an adapter for preventing plug detachment, characterized in that it comprises an adhesive or bonding material to provide a bonding force so as to be detachable when applying a force of a predetermined strength or more, or a friction material providing a frictional force. . The method according to claim 1 or 3,
Wherein the adapter is provided with guiding means for restricting rotation so as to guide the movement of the plug inserted in the connection insertion port of the second engagement portion while maintaining the connection position of the connection pin to the connection connection hole. . The method of claim 2,
Wherein the adapter includes a guide groove formed at a position corresponding to the inner circumferential surface of the connection insertion hole at a predetermined angle along the arc and formed in the longitudinal direction and a cutting groove connected to the guide groove and into which the projection of the plug is inserted from the outside Adherence prevention plug. The method of claim 2,
The adapter includes a sliding groove formed along one side inner surface of the connection port of the second coupling portion, a guide member inserted in the sliding groove and guiding the plug to be inserted into the sliding groove, And an engagement plate for supporting the inserted plug. 15. The method of claim 14,
The guide member is composed of a pair of guide plates having a shield plate inserted in the sliding groove and rotated together with rotation of the inserted plug and a guide hole extending in a direction perpendicular to the shield plate to guide the plug To prevent the plug from escaping. The method according to claim 1, wherein
Wherein the adapter is further provided with confirmation means for confirming whether the plug is inserted or removed. 17. The method of claim 16,
Wherein the checking means is a lamp. 17. The method of claim 16,
Wherein the checking means comprises elastic pieces formed by grooves on the outer surface of the plug, elastic protrusions protruding from the elastic piece, and first and second holes spaced apart from each other in the advancing direction of the plug, Disengagement prevention adapter. 19. The method of claim 18,
Wherein the checking means is further provided with a spring supporting between the plug and the adapter.

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