KR100438988B1 - adapter - Google Patents

Abstract

The present invention relates to an adapter that electrically connects a mains outlet to a mains plug, and more particularly, to an adapter that can be connected to various grounds formed on the mains outlet or mains plug.

Description

Adapter {adapter}

The present invention relates to an adapter that electrically connects a mains outlet to a mains plug, and more particularly, to an adapter that can be connected to various grounds formed on the mains outlet or mains plug.

In general, as shown in FIGS. 24 and 25, main plugs or main outlets having different spacings or arrangement phases are used in pairs in various countries in accordance with the characteristics of each country.

That is, FIG. 24 is a front view showing various types of 110V main blades, and FIG. 25 is a front view showing various types of 220V main plugs. As shown in (a) to (h) of FIG. 24, a pair of electrode piece insertion holes MCEH forming a vertical, horizontal, or diagonal direction is formed in each 110V main outlet MC of each country. The ground piece insertion hole (MCGH) of the vertical or horizontal direction is further formed. Similarly, as shown in (a) to (d) of FIG. 25, a pair of main electrode pieces MPE are formed in the 220 V main plugs MP for each country, and additionally, the ground piece insertion hole MPGH. ) Or the main side ground piece MPSG is further formed. As such, the main plug MP or the main outlet MC has various arrangement phases. In addition, the interval between the electrode piece insertion holes MCEH or the interval between the main electrode pieces MPE may be determined differently depending on the country. Here, it will be apparent that the 110V main outlet may be used as the main plug for 110V, and the main plug for 220V may be used as the main outlet for 220V.

As a result, main plugs or products with mains outlets (especially household appliances) with different spacing or placement phases (especially home appliances) cannot be used because they cannot be paired with mains plugs or mains plugs when traveling abroad. It is happening frequently. For example, you can use the product with an adapter from that country, but if you go to another country, the adapter used in the first country may be useless because it doesn't match the mains plug or mains outlet of another standard.

Thus, the applicant has filed a patent application filed on March 13, 2001 (Application No. 12966), which can be used for the main plug or the main outlet of the above-mentioned countries, and is shown in FIG.

Fig. 26 is a perspective view showing the adapter selected by the applicant separately. The adapter includes at least two electrode bodies (10a, 10b) and at least two electrode bodies housed in the cases (10a, 10b) so that the tip is inserted into the main outlet electrode insertion hole (MCGH) and can be moved left and right within a predetermined range. 15) and inner cylinders 22 for at least two main electrode pieces housed in the cases 10a and 10b so that the main plug electrode piece MPE can be inserted and moved from side to side within a predetermined range, and each main electrode At one end of the inner cylinder 22 so that the outer cylinder 21 and the electrode body 15 and the inner cylinder 22 surrounding and supporting the inner inner cylinder 22 are smoothly moved with respect to each other and electrically connected through elastic contact. It consists of the elastic contact pieces 22 provided.

However, the pre- filed adapter can be used in conjunction with the mains of (a), (c) and (f) in FIG. 24 and the mains plug of (a) in FIG. 25, but is formed in other mains outlets or mains plugs. Not only can it be connected to ground, it can also be unacceptable. For example, when the main plug ground piece MPE is formed in the 110V main plug or the 220V main plug, the pre- filed adapter cannot be used. Even if this adapter is used, it is used without grounding, which may adversely affect the product due to electric shock or leakage of current.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object thereof is to provide an adapter that can be electrically connected to a main plug or a main outlet having various grounding structures.

1 is a perspective view showing the appearance of the adapter according to an embodiment of the present invention.

2 is a front view seen from the plug side case of FIG.

3 is a front view seen from the outlet side case of FIG.

4 is a perspective view of the plug side case of FIG.

5 is a perspective view showing the inner cylinder according to the embodiment of the present invention;

6 is a perspective view of the outlet side case of Figure 1 removed.

Fig. 7 is a perspective view of the outlet side case seen from the outside.

8 is a front view showing a closing plate.

9 is a perspective view seen from the inside of the outlet-side case;

10 is a perspective view illustrating an outer cylinder for a grounding body;

FIG. 11 is a sectional view taken along line A-A of FIG. 10; FIG.

12A to 12C are a perspective view, a plan view, and a side view showing an inner cylinder for a blade-shaped grounding body according to a preferred embodiment of the present invention.

13A and 13B are a perspective view and a plan view of the blade-like ground body;

14A is a cross-sectional view showing a state in which the blade-shaped grounding body is not fixed.

14B and 14C are sectional views showing a state in which the blade-shaped grounding body is fixed;

15A to 15C are a perspective view, a plan view, and a side view showing an inner cylinder for a circular grounding body according to a preferred embodiment of the present invention.

16A and 16B are a perspective view and a plan view of a circular ground body;

17A and 17B are a perspective view showing a side ground body and a plan view seen from the inside thereof.

18 is a cross-sectional view showing a state in which the blade and circular ground body is fixed after removing the case.

19 is a cross-sectional view showing a state in which the blade and circular ground body is not fixed after removing the case.

20 and 21 are perspective views showing the appearance of the adapter according to another embodiment of the present invention.

FIG. 22 is a cross-sectional view after removing the case from the adapter of FIG. 20; FIG.

23A and 23B are a perspective view showing the side ground body of FIG. 22 and a plan view seen from the inside thereof.

24 is a front view showing several types of 110V mains outlets.

25 is a front view illustrating several types of mains plugs for 220V.

Fig. 26 is a perspective view showing the adapter selected by the applicant separately.

<Explanation of symbols for the main parts of the drawings>

110,110 ': plug side case

111: draw-out ball 112: draw-out ball

120: outlet side case

121: insertion hole 122: entrance and exit

123: main ground storage hole 124: side ground drawing hole

125: support guide 126: elastic contact piece sheet

130: closing plate 131: main plug insertion hole

132: ground communication hole 133: main ground communication hole

134: side ground seating groove 140: safety plate

150: blade type electrode body 150 ': circular electrode body

151: blade type electrode piece 152: holder

160: blade type grounding member 160 ': circular type grounding member

161: blade type grounding piece 162: holder

163: projection 164: movement guide home

170: circular grounding body

171: circular ground piece 172: holder

173: turning 174: travel guide

175: gripper

180: support outer cylinder

180a: blade support outer cylinder 180b: round support outer cylinder

180c: Connecting piece 181a, 181b: Inner cylinder insertion slit

182a, 182b: protrusion fixed outwardly caught jaw 183a, 183b: external guide groove

184a, 184b: through hole 185a, 185b: stopper

186a, 186b: spring insertion groove 187a, 187b: spring

190: inner cylinder

190a: blade support inner cylinder 190b: round support inner cylinder

192a, 192b: projection fixed internal pain jaw 193a, 193b: incision

194a and 194b: elastic protrusions 195a and 195b: connection terminal

200,200 ': side ground

201,201 ': Side ground piece 202,202': Circular ground entrance and exit

203,203 ': Main ground insertion hole

210: outer cylinder 220: connected inner cylinder

221: inner cylinder for main electrode piece 222: elastic contact piece

223: extension

MP: 220V main plug

MPE: Main plug electrode piece MPG: Main plug ground piece

MPGH: Main Plug Ground Insert MPSG: Main Plug Side Ground

MC: 110V main blade

MCEH: Mains socket insertion hole MCGH: Mains socket insertion hole

The adapter of the present invention for achieving the above object is a case formed with at least two outlets and inlet and outlet, the electrode body protruding from each of the outlet, the grounding body is formed, the grounding piece through the inlet and outlet It includes a support cylinder for supporting the grounding body to be able to enter and exit, and a fixing / releasing means for fixing or releasing the ground piece protruding from the entrance and exit hole, it can be connected to the main outlet having a variety of grounding structure .

According to another aspect of the present invention, an adapter includes a case in which at least two insertion holes and an entrance hole are formed, a connection cylinder connected to a main plug electrode piece inserted through each insertion hole, a ground body having a ground piece, and the ground piece being It includes a support cylinder for supporting the grounding body to be able to enter and exit through the inlet and outlet, and a fixing / releasing means for fixing or releasing the ground piece protruding from the inlet and outlet, the main body having a variety of grounding structure Can be plugged in.

In the above configuration, the fixing / releasing means is a projection formed on the ground body; A projection locking jaw that is formed in place of the support cylinder and fixes the ground piece in a state protruding from the entrance and exit hole while the projection is caught; It is preferably made of a cut-out portion formed in the longitudinal direction around the projection fixing locking jaw of the support cylinder to form an access passage of the projection, wherein the projection to apply an external force to the grounding body in the state A spring housed in the support cylinder may be further implemented.

In the case where the ground piece is a circular ground piece, it is convenient to rotate the gripping portion formed in the body.

In addition, it is preferable that each of the outlet holes is a long hole, and each of the electrode bodies is capable of moving and rotating from side to side within a predetermined range.

A side grounding body having a side grounding piece connected to the main side grounding piece and a main grounding piece insertion hole into which the main grounding piece is inserted is further provided, and can be connected to a mains outlet or a main plug having various structures.

According to another aspect of the present invention, an adapter includes a case having a plug side case having at least two rectangular outboard holes and an inlet / outlet hole, and an outlet side case having at least two rectangular insertion holes and inlet / outlet holes; Electrode bodies rotatable and rotated within a predetermined range while protruding from the respective outlet holes; A plug side grounding body having a grounding piece; A plug-side support cylinder for supporting the plug-side grounding body such that the plug-side grounding piece can enter and exit through the plug-side entrance and exit hole; In the plug-side protrusion formed in the plug-side ground body, the plug-side support cylinder formed in place to fix or release the plug-side ground piece protruding from the plug-side entrance and exit hole, A plug side projection locking jaw for fixing the plug side ground piece in a state protruding from the plug side entrance and exit hole, and is formed in a longitudinal direction around the plug side projection locking jaw of the plug side support cylinder to enter and exit the plug side projection. Plug side securing / release means having a plug side cutout forming a passageway; A connecting cylinder connected to the main plug electrode piece inserted through the respective insertion holes and movable left and right within a predetermined range; An elastic contact piece provided at one end of the connection cylinder to allow the electrode body and the connection cylinder to be electrically connected to each other while being electrically connected to each other through elastic contact; An outlet side grounding body having a grounding piece; An outlet-side support cylinder for supporting the outlet-side grounding body such that the outlet-side ground piece is able to enter and exit through the outlet-side entrance and exit hole; The outlet side protrusion formed in the outlet side grounding body to fix or release the outlet side grounding piece protruding from the outlet side entrance / exit hole, and formed in place of the outlet side supporting cylinder, and in the state where the outlet side protrusion is caught The outlet side projection latching jaw for fixing the outlet side grounding piece protruding from the outlet side entrance / exit hole is formed in the longitudinal direction around the outlet side projection locking jaw of the plug side support cylinder to enter and exit the outlet side projection. It comprises an outlet-side fixing / release means having an outlet-side cutout forming a passageway, so that it can be connected to the mains outlet and the main plug having various grounding structures.

Further, in the above-described configuration, the main plug side side ground member having a side ground piece connected to the main outlet side ground piece and the main ground piece insertion hole into which the main outlet ground piece is inserted, and the side ground piece connected to the main plug side ground piece And the side of the outlet side having a main ground piece insertion hole is inserted into the main plug ground piece is further provided, it can be connected to the main plug and the main outlet of a variety of structures.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention, the 'adapter' used in the present specification and claims are to include an adapter for a plug, an adapter for an outlet, an adapter combined with a plug and an outlet. .

Example 1

Figure 1 is a perspective view showing the appearance of the adapter according to an embodiment of the present invention, Figure 2 is a front view seen from the plug side case of Figure 1, Figure 3 is a front view seen from the outlet side case of Figure 1, Figure 4 is an internal perspective view of the plug side case of FIG. 1 removed, and FIG. 6 is a perspective view of the outlet side case of FIG. 1 removed. As shown in these figures, the adapter according to an embodiment of the present invention is a case, a pair of blade electrode body 150, blade grounding body 160, connecting cylinder, circular grounding body 170, support cylinder, It consists of a lock / release means.

The case has a plug side case 110 and an outlet side case 120. As shown in FIG. 2, the plug-side case 110 has a lead hole 111 and a blade grounding body 160 which protrude so that each blade type electrode body 150 is connected to the electrode insertion hole MCEH of the main outlet. The blade-shaped ground piece 161 of the entrance and exit hole 112 is formed. As shown in FIG. 7, an insertion hole 121 into which the electrode piece MPE of the main plug is inserted and a circular ground piece 171 of the circular grounding body 170 are inserted into and out of the outlet side case 120. 122 is formed. In addition, the outlet side case 120 has a main grounding hole 123 into which the grounding piece MPG of the main plug is inserted, and a side grounding outing hole 124 through which the side grounding piece 201 to be described later is drawn out. .

On the other hand, as shown in Figure 3, it is preferable that the closing plate 130 for closing the outside of the outlet side case 120 is installed. As shown in FIG. 8, the closing plate 130 includes a main plug insertion hole 131 corresponding to the insertion hole 121 of the outlet side case 120, and a ground communication hole 132 corresponding to the entry and exit hole 122. ), The main ground communication hole 133 corresponding to the main ground receiving hole 123 and the side ground seating groove 134 corresponding to the side ground drawing hole 124 are formed.

The pair of blade type electrode bodies 150 include a blade type electrode piece 151 inserted into and connected to the electrode insertion hole MCEH of the main outlet, and a holder 152 supporting the blade type electrode piece 151 in the lead-out hole 111. It consists of. The holder 152 is rotated and can move left and right within a predetermined range when the drawing hole 111 is a long hole. Therefore, it is possible to satisfy all the various electrode insertion hole structures of the electrode insertion hole (MCEH) of the main outlet of FIG.

The connecting cylinder is connected to the main plug electrode piece MPE inserted through the insertion hole, and is preferably composed of an inner cylinder 220 which is an electrical conductor and an outer cylinder 210 accommodating the inner cylinder 220. . As shown in FIG. 5, each of the inner cylinders 220 has an elastic contact formed in the inner cylinder 221 for the main electrode piece into which the main plug electrode piece MPE is inserted, and one side of which is formed in the outlet side case 120 shown in FIG. 9. The other side of the single sheet 126 is composed of an elastic contact piece 222 in contact with the rear end of the blade electrode piece 151 and an extension piece 223 connecting the inner cylinder 221 for the main electrode piece and the elastic contact piece 222. have. The inner cylinder 221 for the main electrode piece is formed in a structure in which a circular or blade-shaped main plug can be inserted, and the elastic contact piece 222 is configured such that the blade-shaped electrode body 150 is in close contact while rotating left and right. It is preferable. The structure of the inner cylinder 200 is described in detail in the patent application (Application No. 2001-12966) by the applicant. Here, the extension piece 223 of the present embodiment is configured to extend outwardly from one end of the inner cylinder 221 for the main electrode piece, so as to obtain a space for the ground, which will be described later, unlike the previously extended extension piece.

The outer cylinder 210 is installed in the outlet side case 120 while receiving each of the inner cylinders 220. That is, each of the outer cylinder 210 is installed in the insertion hole 121 and the support guide piece 125 of FIG. If the insertion hole 121 is also formed as a long hole like the above-described outlet hole 111, the outer cylinder 210 may be moved left and right within a predetermined range. Through this structure, all of the main plug electrode pieces MPE shown in FIG. 25 can be inserted into and connected to the connection cylinder.

In addition, a safety plate 140 may be installed between the connection cylinder and the closing plate 130. The safety plate 140 is opened only when the plug terminals are inserted at the same time, and prevents children and the like from being inserted into the chopsticks.

Hereinafter, the ground structure will be described.

The blade grounding body 160 is inserted into the main outlet ground insertion hole MCGH through the inlet / outlet 112 of the plug side case 110, and as shown in FIGS. 4, 13A, and 13B, the blade grounding. It consists of a piece 161 and a holder 162 which is an electrical conductor. On the outer circumferential surface of the holder 162, the protrusion 163 and the movement guide groove 164 is formed.

10, 11, 12A to 12C, the blade support cylinder supports the blade-shaped grounding body 160 so that the blade-shaped ground piece 161 can be pulled in and out through the entrance hole 112, It is preferable that the blade support inner cylinder (190a) and the blade support inner cylinder (180a) that surrounds the conductor.

As shown in FIGS. 12A to 12C, the blade-shaped inner cylinder 190a is a cutout portion 193a which forms an access passage of the protrusion fixed inner cylinder catching jaw 192a and the protrusion 163 to which the protrusion 163 is fixed. The elastic protrusion 194a and the connecting terminal 195a are formed. The blade support outer cylinder 180a is installed inside the cases 110 and 120 while accommodating the blade support inner cylinder 190a. As shown in FIGS. 4, 10, and 11, the connection terminal 195a is inserted. An inner cylinder insertion slit 181a, a protrusion fixed outer cylinder engaging jaw 182a, an outer cylinder guide groove 183a, and a through hole 184a, which are possible passages, are formed. The cutout 193a and the outer cylinder guide groove 183a are preferably formed in the longitudinal direction so that the blade-shaped ground member 160 can enter and exit the support cylinder. In addition, the projection fixed inner cylinder engaging jaw (192a) and the projection fixed outer cylinder engaging jaw (182a) is formed in place of each of the support cylinder, preferably formed on the left and right ends of the incision (193a) and the outer cylinder guide groove (183a). Do.

The aforementioned blade support inner cylinder 190a is inserted into the blade support outer cylinder 180a. That is, as shown in Figure 14a, the connection terminal (195a) is inserted and received through the inner cylinder insertion slit 181a of the support outer cylinder 180a, the projection fixed inner cylinder engaging jaw (192a) and the projection fixed outer cylinder engaging jaw ( 182a), the incision 193a and the outer cylinder guide groove 183a are installed at the same position. As such, when the cutout 193a and the outer cylinder guide groove 183a are located at the same position and the protrusion 163 is positioned therein, the blade-shaped grounding body 160 may freely enter and exit the blade-shaped inner cylinder 190a. . The position of the blade at this time is about 45 degrees (refer FIG. 14A).

Next, in order to be inserted into the main outlet ground insertion hole (MCGH), the blade-shaped grounding body 160 should be projected fixed to the support cylinder. That is, as shown in FIG. 14B, when the blade-shaped ground body 160 is rotated to the left side, the projection 163 is caught by the cutout 193a and the outer cylinder guide groove 183a. It can be inserted into the ground insertion hole (MCGH) of Figure 24 (b), (d), (g), (h), as shown in Figure 14c, blade-like ground body 160 When rotated to the right can be inserted into the ground insertion hole (MCGH) of Figure 4 (e) (see Figure 18). Therefore, the blade-like ground body 160 of the present embodiment may be applied to both the main outlet ground insertion hole MCGH.

As described above, the adapter of the present embodiment has protrusions, protrusion fixing inner cylinder catching jaws and cutouts formed on the supporting inner cylinder, and fixing / release means such as protrusion fixing outer cylinder catching jaws and outer cylinder guide grooves formed on the supporting outer cylinder, and thus, easily. It can be applied to the mains plug or mains outlet.

On the other hand, in order to ensure more contact with the blade-shaped inner cylinder 190a in a state where the blade-shaped ground body 160 is fixed, the blade-shaped inner cylinder 190a protrudes inwardly with an elastic protrusion 194a and the corresponding blade type The support outer cylinder 180a is formed with a through hole 184a to allow the outer side of the elastic protrusion 194a to be pushed outward. That is, when the movement guide groove 164 of the holder 162 is fitted and coupled to the elastic protrusion 194a (that is, the fixing of the ground body is released), the blade-shaped ground body (14) is not disturbed by the elastic protrusion 194a. 160 can be smoothly entered and exited from the support cylinder, and when the movement guide groove 164 is out of the elastic protrusion 194a (that is, the ground body is fixed), the holder 162 is pressed against the elastic protrusion 194a This is done closely to prevent each other from loosening.

And, when the adapter is pulled out of the main outlet (MC), that is, the outer surface is easily protruded when the external force is removed to the blade-shaped ground body 160, in the inside of the support cylinder, more specifically, the support outer cylinder (180a) It is preferable to install the spring 187a. That is, the spring 187a exerts an external force on the blade-shaped ground body 160 in a state where the protrusion 163 is located at the cutout 193a and the outer cylinder guide groove 183a so that the spring 187a always protrudes through the entrance and exit hole 112. In order to more securely mount the spring 187a, it is preferable that a spring insertion groove 186a is provided inside the support outer cylinder 180a. The tip of the spring insertion groove 186a may function as a stopper 185a to prevent the blade-shaped ground body 160 from being pushed back.

On the other hand, the circular ground body 170 located in the outlet side case 120 is inserted into the ground insertion hole (MPGH) of the main plug through the entry and exit hole 122 of the outlet side case 120, the blade-type ground body described above Its structure and function are similar except that it is circular instead of blade type of 160. That is, as shown in Figures 16a and 16b, the circular ground body 170 is made of a circular ground piece 171, the projection 173 and the holder 172 is formed with a movement guide groove 174, a circular ground The grip part 175 is formed in the piece 171. The gripping portion 175 is configured in the form of a groove in the outer peripheral surface of the ground piece 171 to be easy to grasp and turn when fixing and releasing the circular ground body 170.

Similarly, as shown in Figs. 10, 11 and 15A and 15C, the circular support cylinder composed of the circular support outer cylinder 180b and the circular support inner cylinder 190b is formed of the above-described blade-supported outer cylinder 180a. The blade support cylinder of the blade support inner cylinder 190a is similar in structure and function. Through this configuration, the circular grounding body 170 can satisfy the main plug MP of FIG. 25C. The blade support outer cylinder 180a and the circular support outer cylinder 180b may be connected to each other by a connection piece 180c to firmly fix each other to the case.

Hereinafter, a structure for satisfying the main plug MP as shown in FIG. 25 (b) or (d) will be described. That is, in FIG. 25B, the ground piece MPG of the main plug is provided below the electrode piece MPE of the main plug, and in FIG. 25D, between the electrode pieces MPE of the main plug. The side ground piece (MPSG) of the main plug is installed above and below. The side grounding body 200 of this embodiment to satisfy this structure is shown in Figs. 17A and 17B.

As for the side ground body 200 located in the outlet side case 120, it is preferable that the side ground piece 201, the circular ground entrance / exit hole 202, and the main ground insertion hole 203 are integrally formed. The side ground piece 201 protrudes to the outside through the side ground drawing hole 124 and the side ground seating recess 134 of the closing plate 130, as shown in FIG. 3. Therefore, this side ground piece 201 is connected to the main plug side ground piece MPSG through contact with each other. The main ground insertion hole 203 has a structure in which the main plug electrode piece MPE can accommodate both blade shapes or circular shapes. The circular ground entry / exit hole 202 connects the side ground piece 201 and the main ground insertion hole 203 integrally, and the entry and exit of the circular ground piece 171 is made due to the installation position of the circular ground piece 171. It is a hole to make it possible.

As described above, the adapter according to the present embodiment can satisfy both the main outlet of FIG. 24 and the main plug of FIG. 25, so that one adapter can sufficiently use a product of any country in another country.

Example 2

If the 220V main plug MP of FIG. 25 is a 220V main outlet, the plug-side casing 110 of Embodiment 1 described above cannot be used as it is. Thus, an adapter for solving this is shown in FIGS. 20 to 22.

20 and 21 are perspective views showing the appearance of the adapter according to another embodiment of the present invention, Figure 22 is a cross-sectional view after removing the case from the adapter of FIG.

The adapter according to the second embodiment is similar in structure and function to that of the first embodiment described above, but the circular electrode body 150 'is used in place of the blade type electrode body 150 in the plug-side case 110'. Point and a circular grounding body 160 'instead of the blade-shaped grounding body 160, the side ground piece 201' shown in Figs. 23A and 23B is formed on the outer circumferential surface of the plug side case 110 '. There is a difference in that it is.

The adapter of the present invention is not limited to the above-described embodiments, and can be implemented in various modifications within the scope of the technical idea of the present invention.

According to the adapter of the present invention as described above has the following advantages.

First, an electrode body protruding from the outlet of the case, a ground body having a ground piece formed therein, a support cylinder for supporting the ground body so that the ground piece can enter and exit through the entrance hole of the case, and the ground piece at the entrance hole. By including a fixing / releasing means for fixing or releasing the fixed state in the protruding state, it is connected to the main outlet having a variety of grounding structure can prevent a short circuit and current leakage.

Secondly, a connecting cylinder connected to the main plug electrode piece inserted through the insertion hole of the case, a grounding body having a grounding piece, and a supporting cylinder supporting the grounding body so that the grounding piece can enter and exit through the opening and closing hole of the case; By including a fixing / releasing means for fixing or releasing the ground piece protruding from the entrance and exit hole, it is connected to the main plug having a variety of ground structure can prevent a short circuit and current leakage.

Third, the fixing / releasing means is a projection formed in the ground body, and a projection fixing latching jaw for fixing the ground piece protruding from the entrance and exit hole in the state where the projection is caught, the support; By forming a cutout portion formed in the longitudinal direction around the projection fixing jaw of the cylinder to form an access passage of the projection, it is possible to easily achieve the projecting fixing of the grounding body or the release of the fixing.

Fourth, since the spring is accommodated in the support cylinder to apply an external force to the ground body in the state where the projection is located in the cutout, it is possible to facilitate the projecting of the ground body.

Fifth, when the ground piece is a circular ground piece, it may be convenient to form a grooved gripping portion in the body, to rotate for the fixing / release of the ground body.

Sixth, the side grounding body having a side grounding piece connected to the main plug or the main outlet side grounding piece and the main grounding piece insertion hole into which the main plug or the mainsing grounding piece is inserted is provided, whereby the main plug or mains outlet having a more diverse grounding structure is provided. Can be accessed.

Seventh, a case having a plug side case formed with at least two rectangular outboard holes and an inlet / outlet and an outlet side case having at least two rectangular insertion holes and inlet / outlet holes; A plug side / outlet side grounding body which protrudes from each of the outlet holes and which is rotatable and rotated left and right within a predetermined range and a grounding piece is formed; A plug side / outlet side support cylinder each supporting the ground body so that the ground piece can be pulled in and out through the entrance and exit hole; A protrusion formed on each of the plug side / outlet side grounding body to fix or release the grounding piece protruding from the entrance and exit hole, and formed at an appropriate position of the support cylinder, and entering and exiting the grounding piece while the protrusion is caught. Plug-side / outlet-side fixing / release means each having a protrusion fixing jaw fixed in a protruding state from the ball and a cutout portion formed in a longitudinal direction around the protrusion fixing locking jaw of the support cylinder to form an entry passage of the protrusion, respectively. ; A connecting cylinder connected to the main plug electrode piece inserted through the respective insertion holes and movable left and right within a predetermined range; The main body and main body having various grounding structures are formed by including an elastic contact piece installed at one end of the connecting body so that the electrode body and the connecting body are electrically connected to each other while being smoothly moved with respect to each other. Can be connected to both plugs.

Claims (16)

A case in which the inlet and outlet holes 112 and at least two outlet holes 111 are formed; An electrode body protruding from each of the outlet holes 111, A grounding body having a grounding piece, A support cylinder for supporting the ground body so that the ground piece can be pulled in and out through the entrance hole 112; It comprises a fixing / releasing means for fixing or releasing the ground piece in a protruding state from the entrance and exit hole 112, Adapters that can be connected to mains outlets with various grounding structures. According to claim 1, The fixing / releasing means is a projection formed on the ground body; A projection locking jaw that is formed in place of the support cylinder and fixes the ground piece in a state protruding from the entrance and exit hole while the projection is caught; Adapter formed of a cut-out portion formed in the longitudinal direction around the fixing projection jaw of the support cylinder to form an access passage of the projection. The adapter according to claim 2, further comprising a spring housed in the support cylinder to apply an external force to the ground body with the protrusion located on the incision. The method of claim 1, wherein the ground piece is circular, Adapter body formed with a gripping groove in the body of the circular ground piece. The method of claim 1, wherein each of the outlet hole is a long hole, And each of the electrode bodies is movable and rotated from side to side within a predetermined range. The adapter according to claim 1, further comprising a side grounding body having a side ground piece connected to the main outlet side ground piece and a main ground piece insertion hole into which the main outlet ground piece is inserted. A case having an entrance hole 122 and at least two insertion holes 121 formed therein; A connecting cylinder connected to the main plug electrode piece MPE inserted through the respective insertion holes 121; A grounding body having a grounding piece, A support cylinder for supporting the ground body so that the ground piece can enter and exit through the entrance hole 122; It comprises a fixing / releasing means for fixing or releasing the ground piece in a protruding state from the entrance and exit 122, Adapters for connection to mains plugs with various grounding schemes. 8. The apparatus of claim 7, wherein the fixing / release means comprises: a protrusion formed on the ground body; A projection locking jaw that is formed in place of the support cylinder and fixes the ground piece in a state protruding from the entrance and exit hole while the projection is caught; Adapter formed of a cut-out portion formed in the longitudinal direction around the fixing projection jaw of the support cylinder to form an access passage of the projection. The adapter according to claim 8, further comprising a spring housed in the support cylinder to apply an external force to the ground body with the protrusion located on the incision. The method of claim 7, wherein the ground piece is circular, Adapter body formed with a gripping groove in the body of the circular ground piece. The method of claim 7, wherein each of the insertion hole is a long hole, And the respective connecting cylinders are movable left and right within a predetermined range. 8. The adapter according to claim 7, further comprising a side grounding body having a side ground piece connected to the main plug side ground piece and a main ground piece insertion hole into which the main plug ground piece is inserted. A case having a plug side case having at least two rectangular drawing holes and an entry hole and a receptacle side case having at least two rectangular insertion holes and an entry hole; An electrode body rotatable and rotatable from side to side within a predetermined range while protruding from the respective outlet holes; A plug side grounding body having a grounding piece, A plug-side support cylinder for supporting the plug-side grounding body such that the plug-side grounding piece can enter and exit through the plug-side entrance and exit hole; In the plug-side protrusion formed in the plug-side ground body, the plug-side support cylinder formed in place to fix or release the plug-side ground piece protruding from the plug-side entrance and exit hole, A plug side projection locking jaw for fixing the plug side ground piece in a state protruding from the plug side entrance and exit hole, and is formed in a longitudinal direction around the plug side projection locking jaw of the plug side support cylinder to enter and exit the plug side projection. A plug side fixing / release means having a plug side cutout forming a passage; A connecting cylinder connected to the main plug electrode piece inserted through the respective insertion holes and movable left and right within a predetermined range; An elastic contact piece provided at one end of the connecting cylinder to allow the electrode body and the connecting cylinder to be electrically connected to each other while being smoothly moved with respect to each other; An outlet-side grounding body having a grounded piece; An outlet-side support cylinder for supporting the outlet-side grounding body such that the outlet-side grounding piece can enter and exit through the outlet-side entrance and exit hole; The outlet side protrusion formed in the outlet side grounding body to fix or release the outlet side grounding piece protruding from the outlet side entrance / exit hole, and formed in place of the outlet side supporting cylinder, and in the state where the outlet side protrusion is caught The outlet side projection latching jaw for fixing the outlet side ground piece protruding from the outlet side entrance and exit hole, is formed in the longitudinal direction around the outlet side projection locking jaw of the plug-side support cylinder to enter and exit the outlet side projection An outlet side fixing / release means having an outlet side cutout forming a passage, Adapters that can be connected to mains outlets and mains plugs with various grounding structures. The adapter according to claim 13, further comprising springs respectively accommodated in the plug-side support cylinder and the outlet-side support cylinder to exert an external force on the ground body while the protrusion is located in the cutout. The method of claim 13, wherein the ground piece is circular, Adapter body formed with a gripping groove in the body of the circular ground piece. The main plug side side ground body according to claim 13, further comprising: a side ground piece connected to the main ground side piece and a main ground piece insertion hole into which the main outlet ground piece is inserted; An adapter further comprising an outlet side side ground body having a side ground piece connected to the main plug side ground piece and a main ground piece insertion hole into which the main plug ground piece is inserted.