KR101691718B1 - Safety consent - Google Patents

Abstract

More particularly, the present invention relates to a safety socket, and more particularly, to a safety socket, in which a movable body for protecting an outlet terminal does not move vertically inside the case, and when a plug terminal is inserted, the movable body and the case are unlocked, To a safety receptacle.
According to the present invention, since the upper and lower covers do not come down even when the infant or the elderly presses the surface of the outlet with a hand or a metal rod, there is an effect that an electric shock accident that may occur due to the outlet terminal being exposed to the outside can be prevented.

Description

Safety outlet {SAFETY CONSENT}

More particularly, the present invention relates to a safety socket, and more particularly, to a safety socket, in which a movable body for protecting an outlet terminal does not move vertically inside the case, and when a plug terminal is inserted, the movable body and the case are unlocked, To a safety receptacle.

An outlet is a means for supplying electric power. When a plug is inserted and a terminal is brought into contact with the outlet, electric current flows. In some cases, electricity or fire may occur due to carelessness in a home or school.

In order to prevent such accidents, a shielding means for blocking the opening of the socket-outlet is being developed. When the plug is normally inserted, the shielding means must be opened and an electrical connection must be made.

FIG. 1A is a plan view showing an internal structure of a safety socket according to the related art, and FIG. 1B is a perspective view showing a state where a plug terminal is plugged in a safety socket according to the related art and is unlocked.

The safety socket of the related art is connected to a power line, a power connection port connected to the plug connection terminal 1104 is disposed in the lower body portion, and a circular hole portion into which the plug is inserted is formed in the upper body portion.

The safety cover is formed with a through hole through which the plug connection terminal passes, and the safety device 100 is coupled to the safety cover. The safety device 100 and the safety cover move upward and downward along the guide groove formed in the safety device accommodating portion, and are restored to the original position (raised position) by the elastic member.

Inside the safety device 100, a blade 102 having an inclined portion 104 configured to rotate in accordance with the insertion of the plug connection terminal is provided. A pair of sliders 110 slidable in accordance with the rotation of the wing 102 are installed and the slider 110 is restored to its original position by the restoring force of the elastic member 120 when the plug connection terminal is inserted .

In the prior art, the wing 102 is rotated by the pressure of the plug connection terminal to move the pair of left and right sliders 110 in parallel. As the slider 110 moves, the slider inclined portion 118 moves, And comes into contact with the engagement inclined portion. The safety device 100 moves due to the engagement of the engagement slopes or the release of the engagement according to the position of the slider 110.

However, in the safety socket of the prior art, the safety device 100 is also lowered down by using a tool (including a hand) other than a plug-in terminal. When the safety device 100 is lowered, the outlet connection terminal may be exposed. Even when the plug connection terminal is not inserted, the safety device 100 is lowered, and the outlet connection terminal is exposed, .

KR 10-1420123 B1

In order to solve the above-described problems, a spring is provided on the bottom surface of a moving body so that the moving body made of the upper and lower covers can be lifted up to the uppermost position inside the case, and only when the plug is inserted into the through groove, the moving body is unlocked So that contact between the plug terminal and the receptacle terminal can be achieved.

According to an aspect of the present invention, which is conceived to solve the above-described problems, there is provided a safety socket for shielding a socket terminal from being exposed to the outside by a locked state in which a mobile terminal does not move up and down when plug terminals are not plugged, A case 210 in which a cam guide 210-4 is formed concavely in a lateral direction on an inner side surface thereof; And a slide spring (260) interposed between the lower surface of the moving body and the upper surface of the case (210) to allow the moving body to move up to the upper side of the case (210) An upper cover 220 made in the shape of a cross section and having two plug through holes 220-3; A lower lid 230 fixed to a bottom surface of the upper lid 220 and having two plug through holes 230-2; Four arms are extended around a center boss through hole 240-1 and are rotatably installed in a space defined by the upper cover 220 and the lower cover 230, A rotation driving member 240 having a rotation slope 240-3 formed on its upper surface and a rotation protrusion 240-4 formed on a bottom surface of an end portion of the arm formed with the rotation slope 240-3; A rotation protrusion groove 250-2 is formed to be rotatable below the rotation driving member 240 and into which the rotation protrusion 240-4 is inserted and the cam protrusion 210-4 A locking member 250 in which a slide cam 250-4 capable of being inserted or removed is protruded; An elastic force for pushing up the rotation drive member 240 upward and a compression torsion for exerting an elastic force for rotating the lock member 250 to insert the slide cam 250-4 into the cam guide 210-4 And a spring (270).

The compression torsion spring 270 includes a cylindrical elastic coil 270-1 formed by spirally twisting a steel wire; And a torsion arm 270-2 having an end portion of the steel wire bent in the radial direction of the cylinder.

According to the present invention, since the upper and lower covers do not go down even when the infant or the elderly presses the surface of the outlet with a hand or a metal rod, there is an effect that an electric shock accident that may occur due to the outlet terminal being exposed to the outside can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1A is a plan view showing the internal structure of a safety socket according to the prior art; Fig.
FIG. 1B is a perspective view showing a state in which a plug terminal is plugged into a safety outlet according to the prior art to be unlocked. FIG.
2 is a perspective view showing the entire structure of an outlet according to an embodiment of the present invention;
Fig. 3 is an exploded perspective view showing the components of the outlet of Fig. 2; Fig.
4 is a perspective view showing a detailed structure of a case;
5 is a perspective view showing the detailed structure of the upper lid.
6 is a perspective view showing a detailed structure of a lower lid.
7 is a perspective view showing the detailed structure of the rotation drive member;
8 is a perspective view showing the detailed structure of the lock member.
9 is a perspective view showing a detailed structure of a compression torsion spring.
10 is a perspective view showing a coupling structure of a moving body in a locked state;
11 is a cross-sectional perspective view showing the internal structure of the locking state of FIG. 10;
FIG. 12 is a perspective view showing a coupling structure of the moving body when in the unlocked state; FIG.
13 is a perspective view showing a rotation process of the rotation driving member and the lock member in the unlocked state of Fig.

Hereinafter, a "safety outlet" (hereinafter referred to as "outlet") according to an embodiment of the present invention will be described with reference to the drawings.

Fig. 2 is a perspective view showing the entire structure of a receptacle according to an embodiment of the present invention, and Fig. 3 is an exploded perspective view showing constituent elements of the receptacle of Fig.

As shown in FIGS. 2 and 3, the receptacle 200 of the present invention has a structure in which a moving body is slidably installed inside a case 210 constituting an external body. The moving body moves in the upward direction (upward direction of the case) by the restoring force of the elastic body. Therefore, when no pressure is applied to the moving body, it is in a state of being raised up to the upper end (direction protruding out of the case).

The moving body defined in the present invention refers to a structure in which the upper cover 220, the lower cover 230, the rotation driving member 240, the lock member 250, and the compression torsion spring 270 are assembled. It is used as a meaning. The moving body is constructed in such a structure that the upper cover 220 and the lower cover 230 are coupled to each other in the up and down direction. In the inner space created by the upper cover 220 and the lower cover 230, (250), and a compression torsion spring (270). The slide spring 260 is interposed on the bottom surface of the moving body inside the case 210, thereby exerting a restoring force of moving the moving body upward to the case 210.

The case 210 of the present invention is mounted on a general outlet without a safety device. That is, the user must pass through the outlet 200 of the present invention to plug the plug into a conventional outlet.

When the receptacle 200 of the present invention is inserted into a conventional conventional socket, the moving body is raised upward by the elastic force of the slide spring 260. 2, the upper surface of the upper cover 220 is raised to a height substantially equal to the upper end of the case 210. Since the height of the case 210 is larger than the length of a general plug terminal, Terminals can not touch each other. When the user presses the upper surface of the upper cover 220 with a hand or other object, the moving object does not descend because it is locked. As a result, when the mobile terminal is not in a normal use state, the mobile terminal remains on the upper side of the case 210, so that the outlet terminal is not exposed to the outside. However, when the user uses the normal method (when the plug terminal is inserted), the movable body is unlocked and can be moved downward. In this case, the plug terminal can be lowered sufficiently to meet with the outlet terminal.

On the inner side surface of the case 210, a predetermined groove is formed in the transverse direction, and a part of the lock member 250 is fitted into the groove in the transverse direction while rotating. When the locking member 250 is inserted in the lateral groove, the moving member does not move up and down. When the locking member 250 is rotated in the horizontal direction due to insertion of the plug terminal, the locking member 250 is detached from the lateral groove. As a result, the movable body can move up and down freely.

The rotation driving member 240 is a means for rotating within a certain range due to the insertion of the plug terminal. When the rotation driving member 240 rotates, the locking member 250 also rotates within a certain range.

The compression torsion spring 270 is formed by elongating the end portion of the spirally twisted wire relatively long. The compression torsion spring 270 exerts a compressive force in the direction of the central axis of the spirally wound steel wire and exerts a rotational force in the circumferential direction of the spiral wire. The compression torsion spring 270 is installed between the rotation drive member 240 and the lock member 250. The rotational drive member 240 and the lock member 250 are urged upward by the compressive force of the compression torsion spring 270 in the direction of the central axis and the rotational drive member 240 and the lock member 250 250 are subjected to the force of horizontally rotating.

The detailed structure and operation of each component will be described below.

4 is a perspective view showing the detailed structure of the case.

The case 210 has a cylindrical storage body 210-1 with an open top surface as a whole. Protrusions, guides, ribs, and the like are formed on the inside and the outside of the housing body 210-1 in the lateral direction or the longitudinal direction, and description of portions that are not technical features of the present invention will be omitted.

The interior of the housing body 210-1 is substantially circular in cross section and has a shape similar to the outer shape of the moving body so that the moving body freely moves in the vertical direction inside the housing body 210-1.

On the right and left sides of the inner side of the housing body 210-1, a guide groove 210-2 is recessed in the longitudinal direction. In the guide groove 210-2, protrusions protruding from left and right sides of the outer side of the moving body are slid in a state sandwiched. The moving body can be moved up and down without rotating left and right by the guide groove 210-2.

The terminal insertion groove 210-3 is formed in the bottom surface of the housing body 210-1. Since the terminal insertion groove 210-3 is a portion through which the normal plug terminal passes, the diameter of the plug terminal and the socket terminal To form a gap.

A cam guide 210-4 is formed in the guide groove 210-2 so as to be concave at a predetermined depth in the transverse direction. The cam guide 210-4 may be formed in both the guide grooves 210-2, but it may be formed in only one of the guide grooves 210-2.

In the guide groove 210-2, the projections are fitted or disengaged while rotating in the horizontal direction.

5 is a perspective view showing the detailed structure of the upper lid.

The left side of FIG. 5 is a view of the upper lid 220 viewed from above, and the right side is a view seen from a lower side.

The upper cover 220 has a structure in which a plurality of grooves or protrusions are formed in a shield plate 220-1 having a shape similar to the inner end face of the housing body 210-1 of the case 210. [ The blocking plate 220-1 has a function of covering the top surface so that the outlet terminal is not exposed to the outside. On the left and right sides of the bottom surface of the blocking plate 220-1, a spring boss 220-2 extending downward is formed. The spring boss 220-2 is a rod-shaped structure in which a cylindrical slide spring 260 is fitted and serves to prevent the slide spring 260 from coming off the upper lid 220. [

Two plug through holes 220-3 are formed in the shield plate 220-1. Plug terminals are inserted through the plug through holes 220-3.

A coupling boss 220-4 is formed in a hollow cylindrical shape protruding from the bottom surface of the blocking plate 220-1. The center of the rotation drive member 240 is rotatably fitted while the engagement bosses 220-4 are used for engagement of the lower cover 230. [

On the side surface of the blocking plate 220-1, an outwardly protruding release protrusion 220-5 protrudes downward. The detachment prevention protrusion 220-5 is used for engagement of the lower cover 230. [

6 is a perspective view showing the detailed structure of the lower lid.

The lower cover 230 is a structure fixed to the bottom surface of the upper cover 220. The lower cover 230 has a circular through hole 230-2 having a shape similar to that of the upper cover 220, Respectively. The plug through hole 230-2 formed in the lower assembly plate 230-1 is substantially elliptical and elongated so that the protrusions and the like in the interior can rotate within a certain range.

On the side surface of the lower assembling plate 230-1, a lower stopping protrusion 230-3 protruding by a predetermined size in the radial direction is formed. The detachment protrusion 220-5 of the upper cover 220 is fitted to the lower retaining jaw 230-3, but the lower surface of the lower retaining jaw 230-3 is opened to facilitate assembly. Further, a separate latching jaw is formed in the lower latching jaw 230-3 so that the assembled upper lid 220 and the lower lid 230 are not separated easily.

7 is a perspective view showing a detailed structure of the rotation driving member.

7 is a perspective view of the rotation driving member 240 as viewed from above, and the right side is a perspective view as viewed from a lower perspective.

The rotation driving member 240 is generally in the form of a cross with four arms, and the lengths of the two pairs of arms at positions symmetrical to each other with respect to the center are generally different. However, the length of the arm may vary depending on the structure of the receptacle 200.

A boss through hole 240-1, which is vertically penetrated, is located at a middle point of the four arms of the rotation driving member 240. The coupling boss 220-4 on the bottom of the upper cover 220 is inserted into the boss through hole 240-1 so that the rotation driving member 240 rotates around the coupling boss 220-4 .

Among the four arms, an earth terminal cover 240-2 protruding upward is formed at the end of a pair of arms. The earth terminal cover 240-2 covers the ground terminal provided on both inner side surfaces of the case 210 so as not to be exposed to the upper side of the case 210. [

And a rotating slope 240-3 is formed on the upper surface of the end of the other pair of arms of the four arms. The rotating slope 240-3 is a portion that contacts the plug terminal and is made to be inclined at a certain angle with respect to the upper surface of the socket 200. [ The rotation slopes 240-3 facing each other with respect to the boss through hole 240-1 are inclined in directions opposite to each other, so that the two plug terminals contact the two rotation slopes 240-3 at the same time When the pressure is applied, the rotation driving member 240 rotates. 3 and 7 of the present invention, when the plug terminal pushes the rotating slope 240-3 from above, the rotation driving member 240 rotates counterclockwise about the center boss through hole 240-1 Respectively. However, this rotation direction may be opposite to the direction of the rotation slope 240-3.

The highest point of the rotation slope 240-3 is inserted into the plug through hole 220-3 of the upper cover 220. [ Accordingly, if the rotation driving member 240 is not slightly lowered, the rotation driving member 240 can not be rotated by the plug through hole 220-3.

On the other side of the rotation slope 240-3, that is, on the bottom surface of the other pair of arms, a rotation protrusion 240-4 is protruded. The rotation protrusion 240-4 engages with the lock member 250 positioned immediately below and allows the lock member 250 to rotate together when the rotation drive member 240 rotates. In the drawings of the present invention, the rotation protrusions 240-4 are formed on the right and left sides, respectively, but may be formed on only one of them.

8 is a perspective view showing a detailed structure of the lock member.

The lock member 250 is positioned between the upper cover 220 and the lower cover 230 and the rotation driving member 240 is seated on the upper surface of the lock member 250. The lock member 250 is inserted into or removed from the cam guide 210-4 formed in the case 210 while rotating together with the rotation driving member 240. [ The movable body can be fixed or movable depending on the position of the lock member 250. [

The lock member 250 has a substantially circular swivel plate 250-1 as a main body and is formed with one rotation protrusion groove 250-2 through the left and right sides symmetrical with respect to the center of the swivel plate 250-1 . The rotation protrusions 240-4 of the rotation driving member 240 and the rotation protrusions 240-4 of the rotation driving member 240 are fitted in the rotation protrusion groove 250-2, ) Rotate together.

Through-holes 250-3 are formed through right and left symmetrically with respect to the center of the rotary plate 250-1. The rotation projection grooves 250-2 and the plug through holes 250-3 are formed independently of each other and are preferably located at a slightly spaced apart position so as not to interfere with each other.

The spaced distance between the rotation projection groove 250-2 and the plug through hole 250-3 will coincide with the rotation angle range of the rotation drive member 240 and the lock member 250. [

On the side surface of the rotary plate 250-1, a slide cam 250-4 protrudes from a position symmetrical to the left and right about the center. The slide cam 250-4 protrudes in the radial direction of the rotary plate 250-1 and has a size and shape enough to be smoothly inserted into or out of the cam guide 210-4 formed in the case 210 Is made.

In the present invention, the rotation driving member 240 and the lock member 250 are separately described as separate parts, but in some cases, two of them may be integrally designed and injection molded. In this case, one part can be used without any separate assembly process.

9 is a perspective view showing the detailed structure of the compression torsion spring.

The compression torsion spring 270 is an elastic member that simultaneously exerts a compressive elastic force and a rotational elastic force and forms a torsion arm 270-2 by elongating an end portion of the elastic coil 270-1 formed by spirally twisting a steel wire . The torsion arm 270-2 is formed by bending the end portion of the steel wire in the radial direction of the spiral steel wire. As a result, a compressive force is generated in the central axis direction of the elastic coil 270-1, and a rotational force is generated in the circumferential direction. The compression torsion spring 270 is fitted under the rotation drive member 240 and the lock member in a state in which the central center axis of the cylindrical elastic coil 270-1 is erected in the vertical direction. The rotation protrusion 240-4 of the bottom surface of the rotation driving member 240 is inserted into the cylindrical portion of the elastic coil 270-1.

One of the two torsion arms 270-2 is fixed to the rotation driving member 240, and the other of the two torsion arms 270-2 is fixed to the lower cover 230. Accordingly, the rotation driving member 240 receives a rotating force that rotates in one direction with respect to the lower lid 230.

FIG. 10 is a perspective view illustrating a coupling structure of a moving body when in a locked state, and FIG. 11 is a cross-sectional perspective view illustrating an internal structure in a locked state of FIG.

10, when the upper lid 220 and the lower lid 230 are engaged with the rotation driving member 240, the lock member 250, and the compression torsion spring 270 incorporated therein, Is made. The rotation drive member 240 and the lock member 250 are fixed to either side by the rotational force of the compression torsion spring 270. [ At this time, the rotating inclined surface 240-3 is positioned directly under the plug through hole 220-3 of the upper cover 220. [ Therefore, when viewed from the top of the moving body, the outlet terminal is blocked so as not to be seen.

In this state, as shown in Fig. 11, the lock member 250 is located on one side, and the slide cam 250-4 is inserted into the cam guide 210-4. Therefore, even if pressure is applied to the moving body, it does not move up and down.

FIG. 12 is a perspective view showing a coupling structure of the moving object when the locking device is in the unlocked state, and FIG. 13 is a perspective view showing the rotation process of the rotation driving device and the locking device in the unlocked state of FIG.

As shown in FIG. 12, the user inserts the plug terminal into the plug through hole 220-3 of the upper cover 220 to use the power source. The two plug terminals are simultaneously fitted to the plug through hole 220-3 by the same length.

The rotation slope 240-3 of the rotation drive member 240 immediately below the plug through hole 220-3 is brought into contact with the end of the plug terminal so that the rotation drive member 240 is rotated counterclockwise Rotate. The lock member 250 is also rotated together with the rotation of the rotation driving member 240 so that the slide cam 250-4 inserted in the cam guide 210-4 moves horizontally, 210-4). When the plug terminal is inserted for a predetermined length or more, the slide cam 250-4 completely slips out of the cam guide 210-4, thereby releasing the vertical lock state of the movable body. Therefore, the moving body can be moved further downward.

A relatively large force is exerted when the user inserts the plug terminal into the receptacle 200. At first, the pressure applied by the user is used to lower the rotation drive member 240 and the lock member 250 downward. When the rotation slope 240-3 is lowered and separated from the plug through hole 220-3 of the upper cover 220, the rotation driving member 240 is freely rotatable.

The force applied to the rotation slope 240-3 while the plug terminal is further lowered is used to rotate the rotation drive member 240 and the lock member 250. [ Then, when the lock member 250 is completely rotated to unlock the moving body, the pressure applied by the user acts as a force to push the moving body downward. This allows the plug terminal to move further downward and contact the receptacle terminal.

On the other hand, when the lock member 250 is rotated, the position of the plug through hole 250-3 formed in the lock member 250 is also changed. The plug through hole 250-3 of the lock member 250 is inserted into the plug through hole 220-3 of the upper cover 220 and the plug through hole 220-3 of the lower cover 230, And coincide with the upper surface 230-2 in the vertical direction. Therefore, the plug terminal passes through all of the three plug through holes 220-3, 230-2, and 250-3, and comes into contact with the lower receptacle terminal.

If the plug terminal is fitted while being in complete contact with the receptacle terminal, the moving body does not move in a state of being positioned under the inside of the case 210. The slide spring 260 stores an elastic force to move upward, and the elastic force of the compression torsion spring 270 to rotate (clockwise in the drawing) to the original position is stored. When the user removes the plug terminal, the elastic force acts as a restoring force, so that the rotation driving member 240 and the lock member 250 rotate to their original state, and the moving body moves upward. Then, the slide cam 250-4 is inserted again into the cam guide 210-4, and the moving body is locked again.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, As will be understood by those skilled in the art. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

200: Safety outlet 210: Case
210-1: Storage body 210-2: Guide groove
210-3: terminal insertion groove 210-4: cam guide
220: upper cover 220-1:
220-2: Spring boss 220-3: Plug through hole
220-4: Coupling boss 220-5: Disengagement prevention projection
230: Lower cover 230-1: Lower assembly plate
230-2: Plug through hole 230-3: Lower jaw
240: rotation driving member 240-1: boss penetrating hole
240-2: Earth terminal cover 240-3:
240-4: rotation protrusion 250: locking member
250-1: spindle 250-2: spindle
250-3: Plug through hole 250-4: Slide cam
260: slide spring 270: compression torsion spring
270-1: elastic coil 270-2: torsion arm

Claims (2)

A safety outlet shielding the socket from being exposed to the outside when the plug terminal is not plugged in a locked state in which the moving object does not move up and down,
A case 210 in which a space for moving the moving body up and down is formed inside and a cam guide 210-4 is formed concavely in the lateral direction on the inner side;
And a slide spring (260) interposed between the lower surface of the moving body and the upper surface of the case (210) to exert an elastic force inside the case,
The moving body
An upper cover 220 having the same shape as the inner end surface of the case 210 and having two plug through holes 220-3;
A lower lid 230 fixed to a bottom surface of the upper lid 220 and having two plug through holes 230-2;
Four arms are extended around a center boss through hole 240-1 and are rotatably installed in a space defined by the upper cover 220 and the lower cover 230, A rotation driving member 240 having a rotation slope 240-3 formed on its upper surface and a rotation protrusion 240-4 formed on a bottom surface of an end portion of the arm formed with the rotation slope 240-3;
A rotation protrusion groove 250-2 is formed to be rotatable below the rotation driving member 240 and inserted with the rotation protrusion 240-4 to rotate together with the rotation driving member 240, A locking member 250 protruding from the cam guide 210-4 so as to be inserted into or removed from the cam guide 210-4 at a position symmetrical to the left and right sides of the center of the side surface;
An elastic force for pushing up the rotation drive member 240 upward and a compression torsion for exerting an elastic force for rotating the lock member 250 to insert the slide cam 250-4 into the cam guide 210-4 And a spring (270)
The compression torsion spring (270)
A cylindrical elastic coil 270-1 formed by twisting a steel wire in a spiral shape;
One of the two torsion arms 270-2 is fixed to the rotation driving member 240, and the other one of the two torsion arms 270-2 is fixed to the rotation driving member 240. The other of the two torsion arms 270-2 is fixed to the rotation driving member 240, One of which is fixed to the lower lid (230), so that the rotation driving member (240) generates a rotational force to rotate in one direction with respect to the lower lid (230). delete

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