KR102576297B1 - Receptacle having safe cover unit - Google Patents

Abstract

The present invention relates to an outlet equipped with a safety cover unit; The purpose of this is to provide visual stability by housing the safety cover unit inside the plug insertion hole and covering the entire opening, and safely opens and closes the terminal holes of the plug insertion hole by raising and lowering depending on whether the power plug is inserted or not, thereby connecting the plug terminal. This is to effectively prevent electric shock and the inflow of foreign substances such as dust without affecting the contact points of the hole.
For this purpose, according to the “outlet with safety cover unit” according to the present invention; It is placed in the plug insertion hole 300 so that it can be raised and lowered, and a pair of first through holes 511 are drilled to match the terminal holes 310, and are provided on the bottom in a direction perpendicular to the bottom surface of the plug insertion hole 300. A pair of guide rods 512 are provided to be accommodated in the guide groove 320 to guide the raising and lowering, and a base plate has a pair of first opening grooves 513 facing each other so that the ground terminal 400 is exposed at the edge. (510) and; It is arranged to surround the guide rod 512 accommodated in the guide groove 320, and the lower end is supported on the bottom of the guide groove 320 and the upper end is supported on the bottom of the base plate 510 to move the base plate 510 upward. A coil spring 520 for elastic support; It is integrally fastened to the upper part of the base plate 510 at regular intervals through a spacer shaft 531 provided at the center, and a pair of second through holes 532 are drilled to match the pair of first through holes 511. , Slide grooves 533L and 533R are formed facing left and right around the pair of second through holes 532 on the bottom, and a pair of second opening grooves are formed at the edges to match the pair of first opening grooves 513. A cover plate 530 formed to face (534); A communication hole 541 is slidably disposed in each of the slide grooves 533L and 533R of the cover plate 530 to selectively allow communication between the first through hole 511 and the second through hole 532. This is perforated, and a downwardly sloping surface 542 is formed around the communication hole 541 from the center of the cover plate 530 toward the outside, thereby establishing communication between the first through hole 511 and the second through hole 532. can be blocked, and when the terminal pin 110 of the power plug 100 is inserted through the second through hole 532 from the top, it slides toward the center of the cover plate 530 due to the inclined surface 542 and enters the communication hole. A pair of sliders 540L that allow insertion of the terminal pin 110 of the power plug 100 by communicating with the second through hole 532, the first through hole 511, and the terminal hole 310 through (541). )(540R) and; They are each accommodated in a pair of sliders (540L) (540R), and the sliders (540L) (540R) are elastically supported in the slide grooves (533L) (533R) of the cover plate (530) toward the outside of the cover plate (530). , If the terminal pin 110 of the power plug 100 is not inserted, the inclined surface 542 of the slider 540L (540R) is positioned between the first through hole 511 and the second through hole 532. an elastic member 550 for blocking communication between the first through hole 511 and the second through hole 532; The central portion is rotatably coupled to the spacer shaft 531 through the coupling hole 561, and both edges are connected to the first opening groove 513 of the base plate 510 and the second opening of the cover plate 530. It extends to be located between the grooves 534, and both end portions are coupled to the ends of the pair of sliders 540L and 540R with axes 543, respectively, so that the pair of sliders 540L and 540R are connected to the cover plate 530. When sliding toward the center, it rotates in the forward direction and the edges on both sides move out between the first opening groove 513 and the second opening groove 534, thereby blocking the communication between the first opening groove 513 and the second opening groove 534. Allowed, when the pair of sliders (540L) (540R) slide in the outer direction of the cover plate (530), they rotate in the reverse direction and both edges of the first opening groove (513) and the second opening groove (534) a straight rotating shielding plate 560 located between the top of the ground terminal 400 and blocking communication between the first opening groove 513 and the second opening groove 534; It is characterized by being provided.

Description

Outlet with safety cover unit {RECEPTACLE HAVING SAFE COVER UNIT}

The present invention relates to an outlet equipped with a safety cover unit; More specifically, it relates to an “outlet with a safety cover unit” that prevents electric shock by inserting an iron rod into the terminal hole of the outlet and effectively prevents the inflow of foreign substances such as dust.

Modern society is surrounded by numerous electrical appliances, and these electrical appliances are usually powered by receiving 220V AC power through a built-in outlet provided in a building or a separate outlet. These outlets are provided with a plurality of plug inserts that can supply power to electrical appliances. Therefore, when the plug of an electrical appliance is inserted into the plug insertion hole of an outlet, the terminal pins of the plug are respectively inserted into the terminal holes of the plug insertion hole and are electrically connected. However, sometimes curious infants or children insert conductors such as chopsticks into the terminal hole of the outlet, resulting in electric shock. To prevent this, a separate safety cover is purchased and inserted into the outlet.

Referring to Figure 1; The conventional safety cover 10 for an outlet includes a plate-shaped cover part 11 that covers the plug insertion hole 21 of the outlet 20, and a plate-shaped cover part 11 that protrudes from the inner surface of the cover part 11 and is inserted into the outlet terminal hole 22. It consists of a pair of legs (12). Therefore, in the conventional safety cover 10 for an outlet, the leg 12 is inserted into the outlet terminal hole 22 and the cover part 11 covers the plug insertion hole 21, thereby preventing safety accidents. In addition, when it is desired to connect the power plug (not shown) of an electrical appliance, the safety cover for the outlet (10) must be completely disassembled from the outlet (20).

However, in the conventional safety cover for an outlet (10), the leg (12) is forcibly inserted into the terminal hole (22) of the plug insertion port (21), so some force is applied when attaching or detaching, which causes the leg (12) of the safety cover (10) to be forcibly inserted. 12) can be easily damaged. In addition, when the safety cover 10 is coupled to the outlet 20, the leg 12 is plugged into the contact point (not shown) of the terminal hole 22. If this state continues, the contact point of the terminal hole 22 This has the disadvantage that electricity does not flow well when the power plug (terminal pin) is inserted because it becomes loose. And when connecting the power plug, the safety cover 10 is completely disassembled from the outlet 20 and is frequently lost.

The present invention is intended to solve these problems; The purpose of the present invention is to provide a sense of visual stability by housing the safety cover unit inside the plug insertion hole and covering the entire opening thereof, and to safely open and close the terminal holes of the plug insertion hole while rising and falling depending on whether the power plug is inserted. The purpose is to provide an “outlet with safety cover unit” that can effectively prevent electric shock and the inflow of foreign substances such as dust without affecting the contact points of the plug terminal hole.

The present invention for achieving this purpose;

Inside, an outlet housing in which a (+)(-) terminal is accommodated and installed is provided on one side of the outlet housing so that a power plug can be inserted, and the terminal pins of the power plug penetrate through the bottom surface of the outlet housing to accommodate the (+)(-) terminal. ) Both ends penetrate the wall of the plug insertion hole and face the inner space of the plug insertion hole so that terminal holes can be connected to the terminal, and the grounding portion provided on the side of the power plug can be connected to the plug insertion hole. An outlet equipped with an exposed ground terminal and a safety cover unit installed in the plug insertion hole for opening and closing the terminal holes depending on whether the power plug terminal pins are inserted or not;

The safety cover unit; It is placed in the plug insertion hole to enable lifting and lowering, and a pair of first through holes are drilled to match the terminal holes. It is accommodated in a guide groove provided in a vertical direction on the bottom surface of the plug insertion hole to guide the lifting and lowering. A base plate is provided with a pair of guide rods for this purpose, and a pair of first opening grooves are formed at the edges to face each other so that the ground terminal is exposed; a coil spring disposed to surround the guide rod accommodated in the guide groove, the lower end of which is supported on the bottom of the guide groove, and the upper end of which is supported on the bottom of the base plate to elastically support the base plate upward; It is integrally fastened to the upper part of the base plate at regular intervals through a spacer shaft provided at the center, and a pair of second through holes are drilled to match the pair of first through holes, and a pair of second through holes are formed on the bottom surface around the pair of second through holes. a cover plate in which slide grooves are formed to face each other left and right, and a pair of second opening grooves are formed opposite to each other on an edge to match the pair of first opening grooves; Each of the slide grooves of the cover plate is slidably disposed, and a communication hole is drilled to selectively allow communication between the first through hole and the second through hole, and is formed around the communication hole in an outward direction from the center of the cover plate. A downwardly inclined surface is formed to block communication between the first through hole and the second through hole, and when the terminal pin of the power plug is inserted through the second through hole from the top, the inclined surface causes the cover plate to a pair of sliders that slide toward the center and communicate with the second through hole, the first through hole, and the terminal hole through the communication hole to allow insertion of a terminal pin of the power plug; They are each accommodated in the pair of sliders and elastically support the slider in the slide groove of the cover plate toward the outside of the cover plate, so that when the terminal pin of the power plug is not inserted, the first through hole and the second an elastic member for blocking communication between the first through hole and the second through hole by positioning the inclined surface of the slider between the through holes; The central portion is rotatably coupled to the spacer shaft in the horizontal direction through a coupling hole, and both edges extend to be located between the first opening groove of the base plate and the second opening groove of the cover plate, and both end portions are Each of the pair of sliders is axially coupled to an end portion, and when the pair of sliders slide toward the center of the cover plate, the pair of sliders rotate in the forward direction and both edges deviate from between the first and second opening grooves to form the first opening groove. The opening groove and the second opening groove are allowed to communicate, and when the pair of sliders slide in the outer direction of the cover plate, they rotate in the reverse direction so that both edges are between the first opening groove and the second opening groove. a straight rotating blocking plate that is positioned to cover the upper end of the ground terminal and blocks communication between the first opening groove and the second opening groove; It is characterized by being provided.

Additionally, the present invention; A pair of opposing locking grooves are provided on the upper wall of the plug insertion hole; The outer end of the pair of sliders is characterized by a stopper portion that slides to the outside of the cover plate and catches in the locking groove when the cover plate rises to the top together with the base plate and the terminal pin of the power plug comes out.

Additionally, the present invention; On the wall of the plug insertion hole, anti-separation grooves are provided to face each other in the vertical direction; The base plate is accommodated in the separation prevention groove at the edge of the base plate, and is characterized in that it is provided with an opposing hook stopper for preventing separation from the plug insertion hole while allowing the base plate to move up and down.

According to the “outlet with safety cover unit” according to the present invention configured as described above; When the power plug is not inserted, it covers the entire opening of the plug insertion hole without affecting the terminal contact point, so it has the advantage of providing visual stability and preventing the inflow of foreign substances such as electric shock and dust. In particular, since both ends of the rotating shield cover the upper part of the ground terminal when the power plug is not connected, the safety cover unit does not fall even when pressed from the outside, thereby more effectively preventing electric shock accidents as well as the inflow of foreign substances.

And only when the terminal pins of the power plug are inserted at the same time, the pair of sliders each slide inward to allow entry of the terminal pins, and the rotating shield rotates at a predetermined angle to expose the top of the ground terminal, allowing the power plug to be connected. do. Therefore, when children inadvertently try to insert metal chopsticks through any of the second opening grooves, the safety cover unit does not fall, thereby preventing electric shock.

In addition, according to the “outlet with safety cover unit” according to the present invention; When the power plug is pulled out from the plug insertion hole and the safety cover unit rises to the top, the slider slides outward and the stopper part is caught in the locking groove and remains locked, causing the safety cover unit to be pressed unless the terminal pin of the power plug is correctly inserted. Even though it does not fall, it has the effect of preventing electrical safety accidents more effectively.

In addition, according to the “outlet with safety cover unit” according to the present invention; The base plate can be moved up and down on the wall of the plug insertion hole through the separation prevention groove and hook holder. Therefore, there is an advantage in that the assembly work can be easily completed by temporarily assembling the safety cover unit consisting of a base plate, a cover plate, a pair of sliders, an elastic member, and a rotating shield, and then inserting it into the plug insertion hole using a pressure fitting method.

Figure 1 schematically shows a safety cover applied to a conventional outlet.
Figure 2 shows an outlet to which a safety cover unit according to the present invention is applied.
Figure 3 is a cross-sectional view taken along line III-III in Figure 2.
Figure 4 is a perspective view showing an excerpt of the plug insertion hole and safety cover unit according to the present invention.
Figure 5 is a plan view of the safety cover unit installed at the plug insertion port in the outlet according to the present invention.
Figure 6 is a cross-sectional view taken along line VI - VI in Figure 5, showing the assembly configuration of the safety cover unit according to the present invention.
Figures 7 and 8 are exploded perspective views showing an excerpt of the safety cover unit according to the present invention.
Figures 9 and 10 show the initial operating state in which the power plug is inserted into the plug insertion hole to which the safety cover unit according to the present invention is applied.
Figure 11 shows a state in which the power plug is completely inserted into the plug insertion hole to which the safety cover unit according to the present invention is applied.
Figures 12 and 13 show a state in which the power plug is completely pulled out of the plug insertion hole to which the safety cover unit according to the present invention is applied.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. Briefly explaining the attached drawings, Figures 2 to 8 show the configuration of the safety cover unit for an outlet according to the present invention, and Figures 9 to 13 show the operating state of the safety cover unit for an outlet according to the present invention.

<Description of the configuration of an outlet equipped with a safety cover unit according to the present invention>

Referring to Figures 2 and 3, the outlet according to the present invention has a (+) (-) terminal 210 installed inside, an outlet housing 200 forming the product outline, and a power plug 100 are inserted. It is provided on one side of the outlet housing 200 so that the terminal pins 110 of the power plug 100 can pass through and connect to the (+)(-) terminal 210. There is a terminal hole 310 on the bottom surface. ) have both ends penetrating the wall of the plug insertion hole 300 so that they can be connected to the perforated plug insertion hole 300 and the grounding portion 120 provided on the side of the power plug 100. It is installed in the ground terminal 400 exposed to the space and the plug insertion hole 300, and opens and closes the terminal holes 310 depending on whether the terminal pins 110 of the power plug 100 are inserted to prevent electric shock. It is equipped with a safety cover unit (500) that can be used.

As shown in FIGS. 3 and 4, the plug insertion hole 300 is made up of a cylindrical body (approximately) with an open top and an empty interior. In the embodiment of the present invention, the plug insertion hole 300 is manufactured separately and is formed on one side of the outlet housing 200 ( As an example, it is configured to be assembled using a hook connection method on the upper surface. Referring to Figures 5 and 6, terminal holes 310 are drilled at regular intervals on the bottom of the plug insertion hole 300, and both ends of the ground terminal 400 penetrate the wall of the plug insertion hole 300. It is exposed to the interior space. In addition, the bottom surface of the plug insertion hole 300 is provided with a guide groove 320 extending downward in the vertical direction facing 180 degrees, where the guide rod 512 of the base plate 510, which will be described later, is accommodated and the safety cover is provided. Guides the raising and lowering of the unit 500. And on the wall of the plug insertion hole 300, a separation prevention groove 330 is formed facing 180 degrees in the vertical direction, where the hook holder 514 of the base plate 510, which will be described later, is accommodated and the safety cover unit 500 ) prevents the breakaway. In addition, on the upper wall of the plug insertion hole 300, a locking groove 340 is provided facing 180 degrees, into which the stopper portion 544 of the slider 540L (540R), which will be described later, is selectively inserted to form a safety cover unit ( 500) can be locked.

In addition, the safety cover unit 500 is installed to cover the opening of the plug insertion hole 300 in the horizontal direction to prevent foreign substances from entering and electric shock accidents; As shown in Figures 4 to 6, a base plate 510 arranged to be able to be raised and lowered in the plug insertion hole 300, a coil spring 520 that elastically supports the base plate 510 in the upward direction, and a base A cover plate 530 coupled to maintain a constant distance from the top of the plate 510, a pair of sliders 540L and 540R arranged to be slidable on the bottom of the cover plate 530, and a pair of sliders ( An elastic member 550 that elastically supports (540L) (540R) in the outward direction is rotatably disposed in the horizontal direction between the cover plate 530 and the base plate 510 to selectively expose the ground terminal 400. It is equipped with a straight rotation shield 560 that allows. {Each component forming the safety cover unit 500 is injection molded using synthetic resin except for the coil spring 520 and the elastic member 550. Therefore, the description of the material is omitted.}

Referring to FIGS. 6 to 8, the base plate 510 is roughly plate-shaped and is placed in the plug insertion hole 300 to be able to move up and down, and has a pair of first through holes 511 to match the terminal holes 310. This is perforated. A pair of guide rods 512 are provided on the bottom of the base plate 510 to be accommodated in the guide groove 320 of the plug insertion hole 300 to guide the raising and lowering, and a ground terminal ( A pair of first opening grooves 513 are formed to face each other by 180 degrees so that 400 is exposed. In addition, the edge of the base plate 510 is accommodated in the separation prevention groove 330 of the plug insertion hole 300, allowing the base plate 510 to move up and down while preventing the base plate 510 from being separated from the plug insertion hole 300. The jaws 514 are provided to face each other. Therefore, after temporarily assembling the safety cover unit 500 consisting of the base plate 510, the cover plate 530, a pair of sliders (540L) (540R), the elastic member 550, and the rotating shield plate 560, the plug insertion hole When inserted into (300), a pair of hook latches (514) are positioned in each of the separation prevention grooves (330) to prevent separation from the plug insertion hole (300) and enable up and down movement.

As shown in FIGS. 6 to 8, the coil spring 520 is arranged to surround the guide rod 512 that can be raised and lowered in the guide groove 320, and its lower end is in the guide groove 320. It is supported on the bottom and the top is supported on the bottom of the base plate 510. Therefore, the base plate 510 is always elastically supported upward through the coil spring 520, so that when the power plug 100 is pulled out from the plug insertion hole 300, it always rises upward.

As shown in FIGS. 6 to 8, the cover plate 530 is roughly plate-shaped and is integrally fastened to the upper part of the base plate 510 at regular intervals through a spacer shaft 531 provided at the center. In the embodiment of the invention, it is configured to be fastened through two screws), and a pair of second through holes 532 are drilled to match the pair of first through holes 511. On the bottom of the cover plate 530, slide grooves 533L and 533R are formed to face each other left and right around the pair of second through holes 532, and at the edges of the cover plate 530, the edges of the base plate 510 are formed. A pair of second opening grooves 534 are formed to face each other by 189 degrees to match the first opening groove 513.

A pair of sliders 540L and 540R are slidably disposed in the slide grooves 533L and 533R of the cover plate 530, respectively, and as shown in FIGS. 6 to 8, the first through hole 511 ) and the second through hole 532 are perforated to selectively allow communication between them. In addition, a downwardly sloping surface 542 is formed around the communication hole 541 from the center of the cover plate 530 to the outside to ensure communication between the first through hole 511 and the second through hole 532. It can be blocked, and when the terminal pin 110 of the power plug 100 is inserted through the second through hole 532 from the top, it slides toward the center of the cover plate 530 due to the inclined surface 542 and flows into the communication hole ( The second through hole 532, the first through hole 511, and the terminal hole 310 are communicated with each other through (541) to allow insertion of the terminal pin 110 of the power plug 100. In addition, at the outer ends of the pair of sliders (540L) (540R), the cover plate 530 along with the base plate 510 is raised to the top, and when the terminal pin 110 of the power plug 100 is pulled out, the locking groove 340 is formed. There is a stopper part 544 that can be caught.

The elastic member 550 consists of a small compression spring, and as shown in FIGS. 6 to 7, is accommodated and arranged in the sliders 540L and 540R, respectively, to fit into the slide grooves 533L and 533R of the cover plate 530. The sliders 540L and 540R are elastically supported toward the outside of the cover plate 530. Therefore, when the terminal pin 110 of the power plug 100 is not inserted, the inclined surface 542 of the slider 540L (540R) is located between the first through hole 511 and the second through hole 532. Communication between the first through hole 511 and the second through hole 532 is blocked, and the safety cover unit 500 can be maintained in a locked state by inserting the stopper part 544 into the locking groove 340 and locking it. (See Figures 5 and 6).

As shown in FIGS. 7 and 8, the straight rotation shield 560 is rotatably coupled to the spacer shaft 531 at its center in the horizontal direction through a coupling hole 561, and the edges on both sides are attached to the base plate ( It extends to be located between the first opening groove 513 of the cover plate 510 and the second opening groove 534 of the cover plate 530. In addition, both end portions of the rotating shield 560 are each coupled to the ends of the pair of sliders 540L and 540R with axes 543 through long holes 562, so that the pair of sliders 540L and 540R cover the cover. When the plate 530 slides in the direction of the center, it rotates at a predetermined angle in the positive direction, and both edges move away from the first opening groove 513 and the second opening groove 534, forming the first opening groove 513 and the second opening groove 530. Communication of the groove 534 is allowed. On the other hand, when the pair of sliders 540L and 540R slide in the outer direction of the cover plate 530, the rotating cover plate 560 rotates at a predetermined angle in the reverse direction and the edges on both sides form the first opening groove 513. ) and the second opening groove 534, covering the upper part of the ground terminal 400 and blocking communication between the first opening groove 513 and the second opening groove 534 (see Figure 5). . As a result, unless the power plug 100 is inserted into the plug insertion hole 300, the opening of the plug insertion hole 300 remains completely covered by the safety cover unit 500, thereby effectively preventing the inflow of foreign substances. There will be.

<Description of the operation of an outlet equipped with a safety cover unit according to the present invention>

Next, the operation and resulting effects of the outlet safety cover unit according to the present invention configured as described above will be described with reference to the accompanying drawings.

As shown in Figures 5 and 6, when the power plug 100 is not inserted, the safety cover unit 500 is located at the top by the elastic support force of the coil spring 520, and a pair of sliders 540L (540R) remains moved outward by the elastic member 550. Therefore, the inclined surface 542 of the slider (540L) (540R) is located between the first through hole (511) and the second through hole (532) to block communication between them, and the stopper portion (544) has a locking groove (340). ) is inserted into the locking state. And both ends of the rotating shield 560 are located between the first opening groove 513 and the second opening groove 534 to block communication between them, so that the ground terminal 400 is also not visible from the outside. Accordingly, even if the safety cover unit 500 is artificially pressed while the power plug 100 is not inserted, not only does it not go down, but even if a chopstick, etc. is inserted into any one of the second through holes 532, the safety cover unit 500 does not fall. (500) does not go down.

In this state, as shown in FIGS. 9 and 10, when the terminal pins 110 of the power plug 100 are simultaneously inserted into the second through hole 532, a pair of sliders 540L and 540R are elastic members. It moves inward while overcoming the elastic support force of (550). That is, when the terminal pins 110 of the power plug 100 press down on the inclined surface 542 of the sliders 540L and 540R from directly above, the pair of sliders 540L and 540R move around the center of the cover plate 530. It slides toward, and as a result, the second through-hole 532, the communicating hole 541, and the first through-hole 511 sequentially communicate and the terminal pin 110 is inserted. In addition, the stopper portions 544 of the sliders 540L and 540R are released from the locking groove 340 and the locked state is released, and both ends of the rotating shield 560 are connected to the first opening groove 513 and the second opening groove 513. By rotating out of the grooves 534, the ground terminal 400 is exposed to the outside through the first opening groove 513 and the second opening groove 534 (see arrow direction in FIG. 10).

Continuing; As shown in FIG. 11, when the power plug 100 is completely inserted into the plug insertion hole 300, the guide rod 512 overcomes the elastic support force of the coil spring 520 and is accommodated in the guide groove 320. And the hook stopper (514) moves down along the separation prevention groove (330). That is, the safety cover unit 500 together with the power plug 100 is completely lowered into the plug insertion hole 300, and the terminal pin 110 of the power plug 100 penetrates the terminal hole 310 (+ )(-) is connected to the terminal 210, and the ground terminal 400 is connected to the ground portion 120 of the power plug 100.

Meanwhile, as shown in FIGS. 12 and 13, when the power plug 100 of the electric appliance is pulled out, the safety cover unit 500 also rises due to the elastic support force of the coil spring 520. In this case, the hook holder 514 moves up along the separation prevention groove 330, and the moment the terminal pin 110 comes out, the pair of sliders 540L and 540R move outward and the stopper portion 544 moves outward. The safety cover unit 500 is raised until it is caught in the locking groove 340 to close the opening of the plug insertion hole 300. When the pair of sliders 540L and 540R move outward, the inclined surface 542 is located between the first through hole 511 and the second through hole 532 to block their communication, and the rotating shield ( Both ends of 560 are rotated to be positioned between the first opening groove 513 and the second opening groove 534 (see the direction of the arrow in FIG. 13), so that the ground terminal 400 is not visible from the outside.

As described above, when the power plug 100 is not inserted, the safety cover unit 500 according to the present invention opens the plug insertion hole 300 without affecting the (+) (-) terminal 210 contact point. Since it covers the entire area, it provides visual stability and prevents electric shock and the inflow of foreign substances such as dust. In particular, when the power plug 100 is not connected, both ends of the rotating shield 560 cover the upper part of the ground terminal 400, so the safety cover unit 500 does not fall even when pressed from the outside, preventing the inflow of foreign substances. It can prevent electric shock accidents more effectively. And only when the terminal pins 110 of the power plug 100 are inserted at the same time, the pair of sliders 540L and 540R each slide in the inward direction to allow entry of the terminal pins 110, and in addition, the rotating shield ( 560 is rotated at a predetermined angle to expose the top of the ground terminal 400, thereby connecting the power plug 100.

In addition, according to the safety cover unit 500 according to the present invention; When the power plug 100 is pulled out from the plug insertion hole 300 and the safety cover unit 500 is raised to the top, the pair of sliders 540L and 540R slide outward and the stopper portion 544 is in the locking groove 340. By maintaining the locked state, the safety cover unit 500 is not lowered even if the safety cover unit 500 is artificially pressed unless the terminal pin 110 of the power plug 100 is accurately inserted.

In addition, according to the safety cover unit 500 according to the present invention; The base plate 510 is coupled to the wall of the plug insertion hole 300 so that it can move up and down through the separation prevention groove 330 and the hook holder 514. Accordingly, the base plate 510, the cover plate 520, and a pair Assembly work by temporarily assembling the safety cover unit 500, which consists of the slider 540L, 540R, the elastic member 550, and the rotating blocking plate 560, and then inserting it into the plug insertion hole 300 using a pressure fit method. can be easily completed.

100..power plug 110..terminal pin 120..grounding part
200..Outlet housing 210..(+)(-) Terminal 300..Plug insertion hole
310.. terminal hole 320.. guide groove 330.. breakaway prevention groove
340..locking groove 400..ground terminal 500..safety cover unit
510.. Base plate 511.. First through hole 512.. Guide rod
513..First opening groove 514..Hook locking jaw 520..Coil spring
530.. Cover plate 531.. Spacer shaft 532.. Second through hole
533L, 533R.. Slide groove 534.. Second opening groove 540L, 540R.. Slider
541.. communication hole 542.. slope 543.. axis
544..Stopper part 550..Elastic member 560..Rotating shielding plate
561..Combining hole 562..Long hole

Claims (3)

delete Inside, an outlet housing 200 in which (+)(-) terminals 210 are accommodated and installed is provided on one side of the outlet housing 200 so that a power plug 100 can be inserted, and the power supply plug 100 is provided on the bottom. A plug insertion hole 300 in which terminal holes 310 are perforated so that the terminal pins 110 of the plug 100 can pass through and be connected to the (+) (-) terminal 210, and the power plug 100 ) A ground terminal (400) with both ends penetrating the wall of the plug insertion hole (300) and exposed to the inner space of the plug insertion hole (300) so that it can be connected to the ground portion (120) provided on the side of the plug, In the outlet installed in the plug insertion hole (300) and equipped with a safety cover unit (500) for opening and closing the terminal holes (310) depending on whether the terminal pins (110) of the power plug (100) are inserted or not;
The safety cover unit 500 is;
It is placed in the plug insertion hole 300 so that it can be raised and lowered, and a pair of first through holes 511 are drilled to match the terminal holes 310, and the bottom is perpendicular to the bottom of the plug insertion hole 300. A pair of guide rods 512 are provided to guide the raising and lowering by being accommodated in the guide groove 320 provided in the direction, and at the edge, a pair of first opening grooves 513 face each other so that the ground terminal 400 is exposed. A base plate 510 formed to be;
It is arranged to surround the guide rod 512 accommodated in the guide groove 320, and the lower end is supported on the bottom of the guide groove 320 and the upper end is supported on the bottom of the base plate 510. ) and a coil spring 520 that elastically supports the upper side;
A pair of second through holes 532 are integrally fastened to the upper part of the base plate 510 at regular intervals through a spacer shaft 531 provided at the center, and are aligned with the pair of first through holes 511. It is perforated, and slide grooves 533L and 533R are formed to face left and right around the pair of second through holes 532 on the bottom surface, and a pair of slide grooves 533L and 533R are formed at the edges to match the pair of first opening grooves 513. a cover plate 530 in which second opening grooves 534 are formed to face each other;
A communication hole ( 541) is perforated, and an inclined surface 542 is formed around the communication hole 541 that slopes downward toward the outside from the center of the cover plate 530 to form the first through hole 511 and the second through hole. It is possible to block communication of the power plug 100, and when the terminal pin 110 of the power plug 100 is inserted through the second through hole 532 from the top, the cover plate 530 due to the inclined surface 542. While sliding toward the center, the second through hole 532, the first through hole 511, and the terminal hole 310 communicate with each other through the communication hole 541, thereby forming a terminal pin of the power plug 100. (110) a pair of sliders (540L) (540R) allowing insertion;
Each of the pair of sliders 540L and 540R is accommodated and disposed, and the sliders 540L and 540R are moved in the slide grooves 533L and 533R of the cover plate 530 toward the outside of the cover plate 530. By elastically supporting the inclined surface of the slider (540L) (540R) between the first through hole (511) and the second through hole (532) when the terminal pin (110) of the power plug (100) is not inserted. an elastic member 550 for blocking communication between the first through hole 511 and the second through hole 532 by positioning (542);
The central portion is rotatably coupled to the spacer shaft 531 through a coupling hole 561, and both edges are aligned with the first opening groove 513 of the base plate 510 and the cover plate 530. It extends to be located between the second opening grooves 534, and both end portions are coupled with axes 543 to the ends of the pair of sliders 540L and 540R, respectively, so that the pair of sliders 540L and 540R are When the cover plate 530 slides toward the center, it rotates in the forward direction and both edges move away from the first opening groove 513 and the second opening groove 534, forming the first opening groove 513 and the second opening groove 530. The opening groove 534 is allowed to communicate, and when the pair of sliders 540L and 540R slide in the outer direction of the cover plate 530, they rotate in the reverse direction and both edges are formed into the first opening groove ( 513) and a straight rotation located between the second opening groove 534 and covering the upper part of the ground terminal 400 and blocking communication between the first opening groove 513 and the second opening groove 534. Equipped with a shielding plate (560);
A pair of locking grooves 340 are provided to face each other on the upper wall of the plug insertion hole 300;
At the outer ends of the pair of sliders 540L and 540R, a cover plate 530 is raised to the top along with the base plate 510, and when the terminal pin 110 of the power plug 100 is pulled out, the cover plate ( A stopper portion 544 is provided that slides to the outside of 530 and catches the locking groove 340; An outlet equipped with a featured safety cover unit. According to clause 2,
On the wall of the plug insertion hole 300, separation prevention grooves 330 are provided to face each other in the vertical direction;
At the edge of the base plate 510, a hook stopper 514 is accommodated in the separation prevention groove 330 and allows the base plate 510 to move up and down while preventing separation from the plug insertion hole 300. An outlet equipped with a safety cover unit, characterized in that it is provided oppositely.

Images