KR102275583B1 - Safety socket-outlets with prevention of ingress of foreign substances - Google Patents

Abstract

The present invention relates to a safety outlet equipped with a structure to prevent inflow of foreign substances comprising: an insertion hole provided in a shape of a penetrating long hole on both sides of a bottom surface of an insertion port; a through hole provided in a shape penetrating a center of the bottom surface of the insertion port; and a cavity provided in a shape forming a space part in a lower part of the bottom surface of the insertion port and a through hole formed on an upper surface, and a side surface through hole formed on both side surfaces to penetrate the insertion hole. Therefore, the present invention has an effect of blocking the inflow of foreign substances.

Description

Safety socket-outlets with prevention of ingress of foreign substances

The present invention relates to an outlet for supplying power to various products, and more particularly, the introduction of foreign substances to prevent safety accidents such as electric shock or fire that may occur due to inflow of foreign substances into the outlet or incorrect insertion of conductive conductors. It relates to a safety outlet equipped with a preventive structure.

Conventional outlets do not have a safety device. Therefore, in conventional outlets, since the plug's terminal openings are always open, when children insert conductive objects other than plugs, for example, metal chopsticks, spoons, nails, knives, etc., electricity due to electric shock or short circuit There was a lot of risk of accidents.

1 is a perspective view of a conventional outlet.

As shown, the conventional outlet 100 has a groove-shaped insertion hole 110 for supplying power on one surface, and a plurality of connection holes 111 spaced apart at regular intervals on the bottom surface of the insertion hole 110 are provided. It is perforated, and a power terminal of +/− is formed in the outlet 100 and spaced apart on the same line as the connection port 111 .

The plug 200 is inserted into the insertion port 110 of the outlet 100 formed as described above, and the terminal rod 210 protruding from the plug 200 is inserted into the connection port 111 of the insertion port 110 . ) is connected to the power terminal.

A configuration is known in which a energizing pin 120 for connecting or blocking the power of the outlet 100 is installed inside the insertion port 110 of the outlet 100 spaced apart from the connection port 111 .

However, the above conventional outlet also has a problem in that there is a risk of an electric accident due to electric shock or short circuit when metal chopsticks, spoons, nails, knives, etc. are inserted into the connection port 111 .

Registered Patent Publication No. 10-1152865 (2012.06.12. Announcement)

The present invention is to solve the above problem, since the opening and closing mechanism slides after the operation of the push button and the terminal rod can be inserted only when the opening hole coincides with the insertion hole, it is possible to prevent foreign substances from being introduced into the outlet. This is to provide a safety outlet equipped with a foreign material prevention structure that can prevent short circuit or electric shock accident even if children insert foreign substances such as chopsticks into any one insertion hole in the outlet.

The present invention safety outlet provided with a foreign substance inflow prevention structure is, on both sides of the bottom surface of the insertion hole, an insertion hole provided in the shape of a penetrating long hole, a through hole provided in the shape of a penetrating shape in the center of the bottom surface of the insertion hole, the bottom surface of the insertion hole It is provided in a shape to form a space in the upper surface, the through hole is formed, and a cavity formed on both sides of the side through hole so as to penetrate the insertion hole, the push button is further provided; The push button is provided with a body coupled so as to be movable up and down inside the cavity, a cylindrical shape protruding from the upper surface of the body, and fitted to enable sliding movement in the through hole, coupled protrusion rod, and the outer surface of the body It includes a first inclined surface having an inclined structure that is narrowed toward the central portion while descending in the downward direction, and a guide rod protruding in a cylindrical shape from the bottom surface of the body, the opening and closing mechanism being further provided; The opening/closing mechanism includes an opening hole provided in a shape penetrating the opening/closing mechanism vertically, and one end of the opening/closing mechanism is provided to have the same inclined structure as the first inclined surface of the push button, and the first inclined surface of the push button and the slide A second inclined surface that makes surface contact for movement, a side guide hole provided in the shape of a hole through one side of the insertion hole so that the opening and closing mechanism can slide, and a side guide hole provided at the end of the side guide hole, the opening and closing mechanism Installed at the end of the first spring that elastically supports and supports the lower surface guide hole and the lower surface guide hole provided in the shape of a hole through the bottom of the cavity so that the guide rod provided on the lower surface of the push button can slide. It is made of a second spring for elastically supporting the guide rod, and a coupling means is further provided; The coupling means is fixed to one end of the first spring, a fixing plate provided with a protruding rod having a concave matsutake mushroom-shaped neck in the center, an outer wall provided in a circular shape protruding from the central portion, and a regular interval inside the outer wall The inner wall protruding in a concentric circle with a notch, a cut-out groove provided in a penetrating shape on both sides of the inner wall, and the outer wall and the inner wall are coupled in a state where elasticity is provided, and the side of one end is inserted into the cut-out groove and the inner wall It is characterized in that it consists of a bottom plate including a bending spring provided in a state protruding to the center of the.

In addition, it is provided in the shape of a recessed groove on the upper surface of the opening and closing mechanism, it is characterized in that it includes a safety groove installed in the same position as the insertion hole in the state that the plug is not coupled.

In addition, the side guide hole and the opening and closing mechanism is characterized in that it has an inclined structure.

In addition, a protective cover is further provided; The protective cover includes a fixing groove provided in a recessed shape on the outer wall of the protective cover, a ball embedded in a through hole formed on both sides of the insertion hole, a coupling plate screwed into the inside of the through hole, and a driver groove formed in the center of the outer surface; A guide tube having a cylindrical structure protruding from the coupling plate is inserted into the guide tube, the other side is fixed to the coupling plate, and one side is characterized in that it consists of a stopper including a support spring coupled with a ball.

In addition, an adsorption fixing part is further provided; The adsorption fixing part is made of an elastic material, is fixed to the bottom surface of the safety outlet, has a hemispherical structure so that a vacuum part is formed therein, is fixed to a groove formed on the lower surface of the body, and external air from the fixed surface to the inside of the vacuum part An adhesive part that adheres so as not to flow in, an opening that is provided in a penetrating shape on the outer surface of the body and functions as a passage for evacuating or sucking air from the vacuum unit to the outside, and a stepped provided in a shape protruding from the inner surface of the opening And, an elastic piece installed with one side fixed to the upper surface of the step, a wire fixed to the upper surface of the elastic piece and installed in a state drawn out of the opening, and an opening means including a handle provided at the end of the wire characterized.

In addition, the adhesive part, based on 100 parts by weight of the polyurethane resin, 0.05 to 0.1 parts by weight of the conductive polymer, 0.2 to 0.5 parts by weight of an alkali metal salt, 15 to 20 parts by weight of polyisobutene, 5 to 15 parts by weight of ethylene vinyl acetate, 0.5 parts by weight of a stabilizer to 5 parts by weight.

The safety outlet equipped with the foreign substance inflow prevention structure of the present invention has the effect of blocking foreign substances such as chopsticks from entering the insertion hole of the safety outlet, and when inserting foreign substances (chopsticks, etc.) into the insertion hole without pressing the push button. When a foreign substance is caught in the safety groove of the opening/closing mechanism, the insertion is restricted and blocked. When a foreign substance is caught in the safety groove, the insertion (pressing) operation of the push button is also limited. When the plug is pulled out, the push button is affected by the spring's elastic force. As the opening and closing mechanism is also slid by the elastic force of the spring, it moves from the position where the insertion hole and the opening hole of the opening and closing mechanism coincide to the position where the safety groove coincides with the insertion hole, thereby blocking the insertion hole. .

1 is a perspective view of a conventional outlet.
Figure 2 is a cross-sectional view of the present invention before the plug coupling of the safety outlet provided with a foreign matter inflow prevention structure.
Figure 3 is a cross-sectional view of a state in which the plug is coupled to the safety outlet provided with the foreign matter inflow prevention structure of the present invention.
4 is a partially enlarged cross-sectional view of the second embodiment of the opening/closing mechanism.
5 is a partial cross-sectional view and an enlarged perspective view of the coupling means.
Figure 6 is a schematic view and a partially enlarged perspective view of the installation state of the protective cover.
7 is a cross-sectional view and a partially enlarged cross-sectional view of the adsorption fixing unit.
8 is a state diagram of a power cutoff means before overheating.
9 is a diagram of the operating state of the power cut-off means after overheating;

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. For reference, sizes of components, thicknesses of lines, etc. shown in the drawings referenced to describe the present invention may be expressed somewhat exaggeratedly for convenience of understanding.

In addition, the terms used in the description of the present invention are defined in consideration of the functions in the present invention, and thus may vary according to user, operator intention, custom, and the like. Therefore, the definition of this term should be made based on the content throughout the present specification.

And in the present application, terms such as 'comprise' and 'have' refer to the existence of a specific number, step, operation, component, part, or combination thereof described in the specification, but one or more other It is to be understood that this does not preclude the possibility of addition or presence of features or numbers, steps, operations, components, parts, or combinations thereof.

In addition, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only this embodiment allows the disclosure of the present invention to be complete, and the scope of the invention to those of ordinary skill in the art It is provided for complete disclosure.

Therefore, the present invention can be made various changes and can have various forms, implementation examples (態樣, aspect) (or embodiments) will be described in detail in the specification. However, this is not intended to limit the present invention to a specific disclosed form, and it should be understood to include all changes, equivalents or substitutes included in the technical spirit of the present invention, and the expression in the singular used herein is clearly different from the context. Unless otherwise indicated, plural expressions are included.

However, in describing the present invention, detailed descriptions of well-known or well-known functions or configurations will be omitted in order to clarify the gist of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

Figure 2 is a cross-sectional view of the safety outlet provided with the foreign matter inflow prevention structure of the present invention before plug coupling, Figure 3 is a cross-sectional view of the state in which the plug is coupled to the safety outlet provided with the foreign matter inflow prevention structure of the present invention.

As shown, the present invention 'safety outlet equipped with a foreign substance inflow prevention structure' (300. hereinafter referred to as 'safety outlet') has an insertion hole 310, an opening/closing mechanism 320, a push button 330, and a lower guide hole. (340), a side guide hole (350), a through hole (360a), a side through hole (360b), including a cavity (370).

The insertion hole 310 is provided in the shape of a penetrating long hole on both sides of the bottom surface of the insertion hole provided in the shape recessed in the safety outlet 300 , and the terminal rod 410 provided on the bottom surface of the plug 400 is fitted, joined

The through hole (360a) is provided in a shape penetrating through the center of the bottom surface of the insertion hole of the safety outlet (300), and the protruding rod (331) provided on the upper surface of the push button (330) to be described later is fitted so that it can slide and move. do.

The side through-holes 360b are formed to penetrate through the insertion holes 310 on both side surfaces of the cavity 370, which will be described later.

The cavity 370 is provided in a shape to form a space in the lower portion of the bottom surface of the safety outlet 300 insertion hole, a push button 330 to be described later is inserted therein, and a through hole 360a is formed in the upper surface of the push button The protrusion rod 331 provided on the upper surface of the 330 is coupled to enable the slide movement.

In addition, side through-holes 360b are formed in both sides of the cavity 370 to penetrate through the insertion hole 310, so that the opening and closing mechanism 320, which will be described later, is coupled to enable sliding movement.

The push button 330 includes a protruding rod 331 , a body 332 , a first inclined surface 333 , and a guide rod 334 .

The body 332 has a circular cross-section and is coupled to the inside of the cavity 370 to move up and down.

The protruding rod 331 is provided to protrude in a cylindrical shape on the upper surface of the body 332 , and is fitted and coupled to the through hole 360a so as to be slidably movable.

The first inclined surface 333 is provided on the outer surface of the body 332 to have an inclined structure that is narrowed toward the central portion while descending in the downward direction, and is provided on one end surface of the opening and closing mechanism 320 to be described later. The second inclined surface 323 and the slide-movable surface contact are made.

The guide rod 334 is provided to protrude from the bottom surface of the body 332 in a cylindrical shape, and is fitted and coupled to a lower surface guide hole 340 to be described later so as to be slidably moved.

The opening/closing mechanism 320 has the shape of a cylinder or a square pillar, and is fitted and coupled to a side through hole 360b and a side guide hole 350 to be described later so as to be slidably moved, and a safety groove 321, open It consists of a hole 322 and a second inclined surface 323 .

The safety groove 321 is provided in the shape of a recess recessed in the upper surface of the opening/closing mechanism 320 , and is installed at the same position as the insertion hole 310 in a state in which the plug 400 is not coupled.

The safety groove 321 as described above is a configuration that is one of the important features of the present application. Chopsticks are inserted into the insertion hole 310 and the chopsticks are caught in the safety groove 321, or a solid material is inserted into the safety groove 321. In the case of stacking and sticking, even if the push button 330 is joined, the left and right movement of the opening and closing mechanism 320 is blocked by chopsticks or solid objects located in the safety groove 321, so the push button 330 is not pressed. This can prevent accidents in advance.

That is, the opening and closing mechanism 320 without the safety groove 321 has only a function of blocking foreign substances such as chopsticks, so that when the push button 330 is pressed, the chopsticks slide on the upper surface of the opening and closing mechanism 320 . , the opening and closing mechanism 320 moves left and right to open the insertion hole 310 . Therefore, a safety accident may occur as the chopsticks penetrate the insertion hole 310 and contact the power source.

The opening hole 322 is provided on one side of the safety groove 321 in a shape that penetrates the opening and closing mechanism 320 up and down, and is located at the same position as the insertion hole 310 in the state in which the plug 400 is coupled. is installed

The second inclined surface 323 is provided at one end of the opening and closing mechanism 320 to have the same inclined structure as the first inclined surface 333 of the push button 330, and the first inclined surface of the push button 330 ( 333) and an interview so that the slide movement is possible.

The side guide hole 350 is provided in the shape of a hole through one side of the insertion hole 310 so that the opening and closing mechanism 320 can slide, and a first spring is installed at the end, so that the opening and closing mechanism is provided. (320) elastic, support.

The lower guide hole 340 is provided in the shape of a hole through the bottom surface of the cavity 370 so that the guide rod 334, provided on the bottom surface of the push button 330, can slide and move, and at the end of the 2 springs are installed to elastically support the guide rod 334.

Looking at the operation relationship of such a safety outlet,

When the plug 400 is not coupled to the safety outlet 300, the opening and closing mechanism 320 blocks the insertion hole 310, so when a child inserts foreign substances such as chopsticks into the insertion hole, the chopsticks are Since it is caught in the safety groove 321 provided on the upper surface of the opening and closing mechanism, it is possible to fundamentally prevent the chopsticks from coming into contact with the power source.

When the plug is coupled to the safety outlet, the bottom surface of the plug 400 presses the protrusion rod 331 provided on the upper surface of the push button 330 (see FIG. 2 ). When the protruding rod 331 is pressed and the push button 330 descends, the guide rod 334 provided on the bottom surface of the push button descends, overcoming the elastic force of the second spring and deeply inserted into the lower surface guide hole 340 .

In addition, while the first inclined surface 333 provided on the side surface of the push button is in sliding contact with the second inclined surface 323 of the opening and closing mechanism 320, the opening and closing mechanism overcomes the elastic force of the first spring and the side guide hole 350 ) is inserted.

When the opening and closing mechanism is inserted into the side guide hole, the opening hole 322 formed on one side of the opening and closing mechanism coincides with the insertion hole 310 of the safety outlet, so that the terminal rod 410 of the plug can be inserted into the insertion hole 310 . there will be

When the plug is removed, the opening/closing mechanism is restored to its original state by the elastic restoring force of the first and second springs and has a function of preventing foreign substances such as chopsticks from entering.

Looking at the effect of the safety outlet as described above, it is the effect of blocking foreign substances such as chopsticks from entering the insertion hole of the safety outlet, and opening and closing when foreign substances (dropping fingers, etc.) are inserted into the insertion hole without pressing the push button. The effect of limiting and blocking the insertion because foreign substances are caught in the safety groove of the mechanism, the effect that the insertion (pressing) operation of the push button is also limited if foreign substances are caught in the safety groove. When the plug is unplugged, the push button is operated by the elastic force of the spring As it rises again and the opening and closing mechanism is also slid by the elastic force of the spring, it moves from a position where the insertion hole and the opening hole of the opening and closing mechanism coincide to a position where the safety groove coincides with the insertion hole, thereby blocking the insertion hole.

Hereinafter, the structure of the side guide hole and the opening and closing mechanism of the second embodiment of the present invention will be described.

4 is a partially enlarged cross-sectional view of the second embodiment of the opening/closing mechanism.

As shown, in this embodiment, the side guide hole 350 and the opening/closing mechanism 320 are characterized in that they have an inclined structure, and the rest of the configuration is no different from the previous embodiment, so here the description of the same configuration is to be omitted.

In this embodiment adopting the above structure, as the push button 330 descends, the first inclined surface 333 provided on the outer surface of the body 332 of the push button and the second inclined surface formed at one end of the opening and closing mechanism 320 ( 323) is in surface contact, since the opening and closing mechanism 320 has an inclined structure, the load of the push button can be transmitted to the opening and closing mechanism more than when the opening and closing mechanism 320 is in a horizontal state. It has the effect of making the sliding movement of the instrument easy and smooth.

Hereinafter, an embodiment of the coupling means of the first spring will be described.

The first spring is positioned between the bottom surface of the side guide hole 350 and one end of the opening/closing mechanism 320. In this embodiment, this first spring is fixed to the side guide hole 350 and the opening/closing mechanism 320. While, if necessary, it relates to a coupling means that can also be separated from the side guide hole (350).

5 is a partial cross-sectional view and an enlarged perspective view of the coupling means.

As shown, the coupling means 500 includes a bottom plate 510 and a fixing plate 520 .

The fixing plate 520 is fixed to one end of the first spring by fixing means such as welding. The other side of the first spring is fixed to the end of the opening/closing mechanism 320 by welding or the like.

The fixing plate 520 has a disk-shaped structure having a certain thickness, and a protruding bar 521 is provided in the center, and the upper protruding bar 521 has a matsutake mushroom-shaped structure with a concave neck, which will be described later. It is coupled while elastically and deforming the bending spring 514.

The bottom plate 510 has a disk-shaped structure having a certain thickness, and is fixed to the bottom surface of the side guide hole 350 by fixing means such as welding or bonding, an outer wall 511, an inner wall 512, It consists of a cut-out groove (513) and a bending spring (514).

The outer wall 511 is provided in a circular shape protruding from the central portion of the bottom plate 510 , and a bending spring 514 to be described later is elastically supported on the inner wall surface of the outer wall 511 .

The inner wall 512 protrudes in concentric circles at regular intervals on the inner side of the outer wall 511 , and a bending spring 514 is elastically supported on the outer wall surface of the inner wall 512 .

The cut-out groove 513 is provided in a shape penetrating through both sides of the inner wall 512, and the side surface of one end portion of the bending spring 514, which will be described later, is inserted.

The bending spring 514 is coupled in a state in which elasticity is imparted between the outer wall 511 and the inner wall 512 , and the side of one end of the bending spring 514 is inserted into the cut-out groove 513 to the inner wall 512 . ) is provided in a protruding state to the central part.

Looking at the operating relationship of the coupling means 500 as described above, when the opening and closing mechanism 320 is pressed, the fixing plate 520 fixed to the first spring presses the bottom plate 510 , and is provided in the center of the fixing plate 520 . The protruding rod 521 is inserted while passing through the center of the inner wall 512 of the bottom plate 510 while elastically deforming the bending spring 514 to open outward. When the protruding rod is further inserted, the flexural spring 514 is restored to its original shape at the neck of the protruding rod, and it is possible to fix the protruding rod.

Of course, the above coupling means can also be adopted for the second spring.

Hereinafter, an embodiment of the protective cover will be described.

This embodiment relates to a protective cover for preventing the inflow of foreign substances by shielding the insertion hole of the safety outlet when the safety outlet is not in use.

6 is a schematic view and a partially enlarged perspective view of the installation state of the protective cover.

As shown, the protective cover 600 has a hemispherical cylindrical shape with one side open and the other side closed so that it can be inserted into the insertion hole of the safety outlet 300, a fixing groove 610, and a stopper 620 ) is included.

The fixing groove 610 is provided in a shape recessed in the outer wall of the protective cover 600 , and a ball 621 of a stopper 620 to be described later is inserted to fix the protective cover to the inside of the insertion hole.

The stopper 620 includes a ball 621 , a support spring 622 , a guide tube 623 , and a coupling plate 624 .

The ball 621 is embedded in the through-holes formed on both sides of the insertion port of the safety outlet 300, and the bottom of the ball is fixed to one end of a support spring 622 to be described later.

The coupling plate 624 is screw-coupled to the inside of the through hole, and a driver groove is formed in the center of the outer surface of the coupling plate 624 . Of course, the height at which the ball 621 protrudes to the outside of the through hole can be adjusted by tightening or loosening the coupling plate with this driver groove.

The guide tube 623 has a cylindrical structure protruding from one surface of the coupling plate 624, and a support spring 622 is inserted therein, thereby guiding the support spring 622, so that the support spring is buckled. function to prevent it.

The support spring 622 is inserted into the guide tube 623 , the other side is fixed to the coupling plate 624 , and one side is coupled to the ball 621 .

Looking at the operating relationship of the protective cover 600 as described above, when the safety outlet 300 is not used, when the protective cover is inserted into the insertion hole of the safety outlet, the ball 621 of the stopper 620 is the outer surface of the protective cover. pressed on and subjected to pressure. The ball 621 subjected to pressure enters the through hole while compressing the support spring 622 .

When the protective cover is continuously inserted and the ball 621 and the fixing groove 610 coincide with each other, the ball protrudes out of the through hole again due to the elastic restoring force of the support spring, and is inserted into the fixing groove to insert the protective cover. can be fixed.

At this time, adjusting the elastic restoring force of the support spring can be achieved by turning the driver groove of the coupling plate 624 with a driver to adjust the degree of insertion of the coupling plate into the through hole.

Hereinafter, an embodiment of the adsorption fixing unit will be described.

Safety outlets are connected to cables and used near electrical devices. These safety outlets are not fixed to the floor or wall of the room, so safety outlets are damaged or cables are cut off due to pranks such as kicking by children. There was a problem with accidents.

In this embodiment, an adsorption fixing unit capable of fixing the safety outlet to an arbitrary place such as a wall, a room floor, or furniture will be described.

7 is a cross-sectional view and a partially enlarged cross-sectional view of the adsorption fixing part.

The adsorption fixing part 700 of this embodiment includes a vacuum part 710 , an adhesive part 720 , a body 730 , and an opening means 740 .

The body 730 is made of an elastic material such as rubber, is fixed to the bottom surface of the safety outlet 300, and has a hemispherical structure such that a vacuum unit 710 is formed therein.

The adhesive part 720 is provided on the lower side of the outer surface of the body 730, and the adhesive part 720 is fixed to a groove formed on the lower surface of the body 730 so as to stably maintain an external shape made of a gel. and serves to adhere so that outside air does not flow into the vacuum unit 710 from the fixed surface.

The adhesive portion 720 is fixed while being cured in a gel (GEL) state in the state of liquid polyurethane resin in the groove. Looking at the specific composition, the conductive polymer is 0.05 to 0.1 parts by weight, alkali based on 100 parts by weight of the polyurethane resin. 0.2 to 0.5 parts by weight of a metal salt, 15 to 20 parts by weight of polyisobutene, 5 to 15 parts by weight of ethylene vinyl acetate, and 0.5 to 5 parts by weight of a stabilizer.

The adhesive portion 720 has excellent watertightness, airtightness, adhesiveness and shape stability, as well as excellent adhesion while having durability, thereby maximizing the sealing effect.

The opening means 740 includes an elastic piece 741 , an opening 742 , a step 743 , a handle 744 , and a wire 745 .

The opening 742 is provided in a shape penetrating the outer surface of the body 730 and has a function of a passage for discharging or sucking the air of the vacuum unit 710 to the outside.

The step 743 is provided in a protruding shape on the inner surface of the opening 742, and an elastic piece is provided at the upper portion of the step 742.

The elastic piece 741 is installed with one side fixed to the upper surface of the step 743, and by the elastic piece opening or closing the opening 742, the air of the vacuum unit 710 is discharged or sucked to the outside. function.

The wire 745 is installed while being fixed to the upper surface of the elastic piece 741 and withdrawn to the outside of the opening.

The handle 744 is provided at the end of the wire 745, and the user grips and grabs it, and by bending the elastic piece, the opening communicates with the outside air and has a function of opening.

Looking at the operation relationship of the adsorption fixing unit 700 as described above,

When the user places and presses the safety outlet at a place where the user wants to fix the safety outlet 300, that is, on the floor, wall, furniture, etc., the body 730 of the adsorption fixing unit 700 made of an elastic material is compressed while the vacuum unit As the air of the 710 is discharged to the outside by placing the elastic piece 741 through the opening 742, a negative pressure is formed in the vacuum unit.

When a negative pressure is formed in the vacuum unit in this way, the elastic piece 741 closes the opening 742 due to the pressure of the external air, and the vacuum unit maintains the negative pressure, so the safety outlet provided with the adsorption fixing part by the external air pressure can be fixed in any place.

When the user wants to separate the safety outlet from a fixed place, when the user grabs the handle 744 and pulls it, the elastic piece 741 is bent upward by the wire 745 connected to the handle, and the opening 742 is connected to the outside air. In communication, external air is sucked into the vacuum unit 710 .

Therefore, since the vacuum unit loses the negative pressure and the suction power is eliminated, the safety outlet can be separated from any place.

Hereinafter, an embodiment in which the user can identify that the safety outlet is overheated will be described.

The characteristic of this embodiment is that the zonal material is applied to the outer surface of the safety outlet 300 (see FIG. 6).

The Zion paint is a pigment that discolors at a specific temperature, and the reversible Zion paint has a range of a reference temperature of -15°C to 70°C. In this embodiment, the temperature change from high temperature to low temperature or low temperature to high temperature Zion material was prepared to include a temperature-responsive color change composition capable of sequentially exhibiting three or more colors according to the composition, and the composition was 8 to 10 parts by weight of zinc oxide, 10 to 15 parts by weight of titanium dioxide, and 100 parts by weight of the paint. It is characterized in that it is a temperature-sensitive color change composition further comprising 5 to 7 parts by weight of synamate, 10 to 22 parts by weight of each of two or more Zion materials having different temperature zones and colors, and 20 to 30 parts by weight of a curing agent.

In this way, by applying the ionizing material to the outer surface of the safety outlet, the user can visually check the overheating state of the safety outlet, so that the user can easily identify that the safety outlet is overheated and prevent a fire from occurring. In addition, it is possible to have an effect of preventing in advance that the user's body is unconsciously in contact with an overheated safety outlet and burns.

Hereinafter, an embodiment in which the power can be cut off when the safety outlet is overheated will be described.

8 is a state diagram of the power shutoff means before overheating, and FIG. 9 is a state diagram of the power cutoff means after overheating.

The overheat blocking means 800 of this embodiment includes a rotating body 810, a 'C'-shaped pressing tool 820, a first bracket 850, a second bracket 830, a third bracket 840, and a compression spring. , S1 (power cut-off switch) is included.

The rotating body 810 is axially coupled to a rotation shaft provided in the safety outlet 300 so as to be rotatable, one side of which is coupled with a compression spring, and the upper surface of the other side is a 'C'-shaped pressing tool 820 . is in sliding contact with

The 'C'-shaped pressing tool 820 is made of a shape memory alloy, and when heated to a temperature above a certain level, a 'C'-shaped opening is provided.

In addition, the 'C'-shaped pressure tool 820 has a bottom surface of the 'C'-shaped pressure tool 820 on the upper surface of the third bracket 840 provided in a protruding shape on the inner side of the safety outlet 300 . It is fixed.

The compression spring is coupled to the upper outer surface of the first bracket 850 and the rotating body 810 provided in a protruding shape on the inner upper surface of the safety outlet 300 .

S1 (power cut-off switch) is provided on the outer surface of the second bracket 830 provided in a protruding shape on the inner lower surface of the safety outlet (300).

Looking at the operating relationship of such a power cutoff means,

When the temperature rises due to overheating of the safety outlet due to poor contact, etc., the 'C'-shaped pressing tool 820 made of a shape memory alloy is opened.

When the 'C'-shaped pressing tool 820 is opened and presses the rotating body 810, the rotating body rotates about the rotating shaft.

When the rotating body 810 rotates, the rotating body presses the power cut-off switch S1 to cut off the power, so that safety accidents such as fire due to overheating can be prevented.

In the following embodiments, fire extinguishing means in case a fire occurs due to overheating of the safety outlet will be described.

As shown in FIGS. 8 and 9 , the fire extinguishing means 860 of this embodiment is fixed to the side surface of the second bracket 830 and includes an outer shell 861 and a fire extinguishing liquid.

Looking at the operation relationship of the fire extinguishing means, when a fire occurs at the safety outlet 300, the outer shell 861 of the combustible material of the fire extinguishing means 860 is burned by thermal action and is easily destroyed, and at the same time the fire extinguishing means The fire extinguishing liquid filled in the saturated state in the 860 is diffused to the outside, and the fire extinguishing action is performed in the safety outlet 300.

The extinguishing liquid consists of microcapsule particles for fire suppression embedded in the outer shell 861, and the microcapsule particles contain CH3CHFCF3, a micro-extinguishing material, in a micro-sized capsule having a diameter of 5 to 20 μm. In case of fire, microcapsule particles burst and the extinguishing gas is diffused into the inside of the safety outlet to extinguish the fire.

300: safety outlet 310: insertion hole
320: opening and closing mechanism 321: safety home
322: open hole 323: second slope
330: push button 331: protruding bar
332: body 333: first inclined surface
334: guide rod 340: lower guide ball
350: side guide hole 360a: through hole
360b: side through hole 370: cavity
400: plug 410: terminal rod
500: coupling means 510: bottom plate
511: outer wall 512: inner wall
513: cut-out groove 520: fixed plate
521: protruding rod 600: protective cover
610: fixed groove 620: stopper
621: ball 622: support spring
623: guide box 624: coupling plate
700: adsorption fixing unit 710: vacuum unit
720: adhesive part 730: body
740: opening means 741: elastic piece
742: opening 743: step
744: handle 745: wire
800: power cutoff means 810: rotating body
820: 'C' shaped pressure tool 830: 2nd bracket
840: 3rd bracket 850: 1st bracket
860: fire extinguishing means 861: outer shell

Claims (6)

On both sides of the bottom surface of the insertion hole, the insertion hole 310 provided in the shape of a penetrating long hole,
A through hole (360a) provided in a shape penetrating in the center of the bottom surface of the insertion hole,
It is provided in a shape to form a space in the lower portion of the bottom surface of the insertion hole, the through hole (360a) is formed on the upper surface, and the side through hole (360b) is formed on both sides to penetrate the insertion hole (310) It includes a cavity (370),
A push button 330 is further provided;
The push button 330 is
A body 332 coupled to the inside of the cavity 370 so as to be movable up and down, and
A protrusion rod 331 that is provided to protrude in a cylindrical shape from the upper surface of the body 332 and is fitted and coupled to enable sliding movement in the through hole 360a,
A first inclined surface 333 having an inclined structure that is narrowed toward the central portion while descending downward on the outer surface of the body 332;
Includes a guide rod 334 protruding in a cylindrical shape on the bottom surface of the body 332,
An opening and closing mechanism 320 is further provided;
The opening and closing mechanism 320 is
An opening hole 322 provided in a shape penetrating the opening and closing mechanism 320 up and down;
It is provided at one end of the opening/closing mechanism 320 to have the same inclined structure as the first inclined surface 333 of the push button 330 , and a surface to enable sliding movement with the first inclined surface 333 of the push button 330 . A second inclined surface 323 in contact, and
A side guide hole 350 provided in the shape of a hole through one side of the insertion hole 310 so that the opening and closing mechanism 320 can slide and move;
A first spring installed at the end of the side guide hole 350 to elastically support the opening and closing mechanism 320,
A lower surface guide hole 340 provided in the shape of a hole through the bottom surface of the cavity 370 so that the guide rod 334, provided on the bottom surface of the push button 330, can slide and move, and
It is installed at the end of the lower guide hole 340, and consists of a second spring that elastically supports the guide rod 334,
A coupling means 500 is further provided;
The coupling means 500 is,
A fixing plate 520 fixed to one end of the first spring and provided with a protruding rod 521 having a concave matsutake mushroom-shaped neck in the center;
An outer wall 511 provided in a circular shape protruding from the central portion,
An inner wall 512 protruding in concentric circles at regular intervals on the inner side of the outer wall 511,
A cut-out groove 513 provided in a penetrating shape on both sides of the inner wall 512,
It is coupled with elasticity between the outer wall 511 and the inner wall 512 , and the side of one end is inserted into the cut-out groove 513 and protrudes toward the center of the inner wall 512 . Consists of a bottom plate 510 including 514,
Doedoe adsorption fixing unit 700 is further provided;
The adsorption fixing unit 700,
Body 730 made of an elastic material, fixed to the bottom surface of the safety outlet 300, and having a hemispherical structure such that a vacuum part 710 is formed therein;
An adhesive portion 720 that is fixed to a groove formed on the lower surface of the body 730 and adheres to prevent outside air from flowing into the vacuum unit 710 from the fixed surface;
An opening 742 provided in a shape penetrating the outer surface of the body 730 and functioning as a passage for discharging or sucking the air of the vacuum unit 710 to the outside;
A step 743 provided in a protruding shape on the inner surface of the opening 742, and
An elastic piece 741 installed with one side fixed to the upper surface of the step 743 and,
A wire 745 fixed to the upper surface of the elastic piece 741 and installed in a state drawn out of the opening;
It consists of an opening means 740 including a handle 744 provided at the end of the wire 745,
Adhesive portion 720,
Based on 100 parts by weight of the polyurethane resin, the conductive polymer contains 0.05 to 0.1 parts by weight, 0.2 to 0.5 parts by weight of an alkali metal salt, 15 to 20 parts by weight of polyisobutene, 5 to 15 parts by weight of ethylene vinyl acetate, and 0.5 to 5 parts by weight of a stabilizer. and
An overheat blocking means 800 is further provided;
The overheat blocking means 800 is,
The safety outlet 300 is shaft-coupled so as to be able to rotate to the rotation shaft provided inside the safety outlet 300, one side is coupled to a compression spring, and the other side is a 'C'-shaped pressure tool 820 and a rotating body 810 in sliding contact with it,
A 'C'-shaped pressing tool 820 fixed to the third bracket 840 provided in a shape protruding from the inner side of the safety outlet 300, and
A compression spring coupled to the first bracket 850 and the rotating body 810 provided in a shape protruding from the inner upper surface of the safety outlet 300,
It includes a power cut-off switch provided on the outer surface of the second bracket 830 in a shape protruding from the inner lower surface of the safety outlet 300,
The 'C'-shaped pressing tool 820 is made of a shape memory alloy, and when heated, a 'C'-shaped opening is provided so as to be widened. A safety outlet with a foreign substance inflow prevention structure. 2. The method of claim 1,
It is provided in the shape of a recessed groove on the upper surface of the opening/closing mechanism 320, and includes a safety groove 321 installed at the same position as the insertion hole 310 in a state in which the plug 400 is not coupled. A safety outlet equipped with a structure to prevent the inflow of foreign substances. 3. The method of claim 2,
The side guide hole 350 and the opening/closing mechanism 320 are provided with a foreign substance inflow prevention structure, characterized in that having an inclined structure. 4. The method of claim 3,
A protective cover 600 is further provided;
The protective cover 600,
A fixing groove 610 provided in a shape recessed in the outer wall of the protective cover 600,
A ball 621 built into the through hole formed on both sides of the insertion hole, and
A coupling plate 624 screwed into the inner side of the through hole and having a driver groove formed in the center of the outer surface;
A guide tube 623 of a cylindrical structure protruding from the coupling plate 624,
It is inserted into the inside of the guide tube 623, the other side is fixed to the coupling plate 624, and one side is a foreign material characterized in that it consists of a stopper 620 including a support spring 622 coupled to the ball 621. A safety outlet equipped with an inflow prevention structure. delete delete

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