KR102659261B1 - outlet safety device - Google Patents

Abstract

The present invention relates to a safety device for an outlet, and more specifically, to prevent safety accidents from occurring due to insertion of foreign objects such as chopsticks by simply installing it in an outlet or multi-tap provided for plug connection in a building or house. ，It was invented to provide excellent safety and reliability by automatically operating the safety device when the plug is pulled out.
The configuration of the present invention is fitted and seated in the plug connection part of the outlet (1), the first guide (11), the second guide (12), and the support piece (13) are integrally provided, and the plug through hole (14) is drilled. A supporting base frame (10); An inclined cam surface 21 is installed to be slideable on the upper surface of the base frame 10 guided by the first guide 11 and guides the insertion of the plug 2 into the outlet 1, and the insertion of foreign substances. A pair of safety blocks (20) in which a blocking surface (22) is integrally formed, and the installation grooves (23) are concavely formed to face each other; A first spring 30 that is inserted into the installation groove 23 in a state to prevent separation and elastically supports the safety blocks 20; In the second guide 12, the lock switch 60 is installed on the upper surface of the base frame 10 to slide in a direction perpendicular to the safety blocks 20;
The base frame 10 includes a pair of locking protrusions 50 integrally formed to protrude on both sides; Hooks 61 provided integrally with the lock switch 60 to be hung on the locking protrusions 50; a second spring (70) elastically installed between the lock switch (60) and the support piece (13); When the plug enters the position of the plug through hole 14 by guiding the inclined cam surface 21 of the safety blocks 20, the hooks 61 of the lock switch 60 are pressed to release the lock from the locking protrusion 50. Preferably, the safety blocks 20 include a release member 80 integrally molded into a ring shape.

Description

outlet safety device

The present invention relates to a safety device for an outlet, and more specifically, to prevent safety accidents from occurring due to insertion of foreign objects such as chopsticks by simply installing it in an outlet or multi-tap provided for plug connection in a building or house. ，It was invented to provide excellent safety and reliability by automatically operating the safety device when the plug is pulled out.

In general, with the development of industry, various electrical and electronic devices are being used not only in offices and homes, but also in various industrial sites.

For example, around a computer in an office or home, wires are complexly wired using one or more power strips to connect power to various electronic devices such as the main body, monitor, printer, speakers, audio, and TV.

In the case of power strips, most of them have 2 to 4 plug outlets so that you can connect multiple electronic devices. In particular, in the case of computers, you need to connect several peripheral devices such as monitors, printers, speakers, scanners, etc., so it is necessary to have multiple outlets. It is purchased along with a multi-tap and is very useful for supplying power to the computer body and each peripheral device.

In addition, in homes and offices, outlets are buried and fixed in the wall, and safety accidents often occur when curious children insert conductive materials such as chopsticks through the plug hole of the outlet or power strip. occurs.

Additionally, dust or moisture may also flow into the outlet where the electrical terminals are wired to the plug hole location, causing a fire due to a short circuit or electric leak.

To solve this problem, a safety device is provided to prevent tools other than the rated plug from being inserted.

The Jongle safety device is a safety device in which a safety cover is installed inside the outlet, a cover member that opens and closes the plug connection terminal, an elastic member that elastically supports the cover member, and a sliding part and step part with a curved catching groove. is being proposed.

And, in order to control the opening and closing of these safety devices, a manually operated switch is installed exposed to the outside.

In other words, in the safety device of a conventional outlet or multi-tap, if the user does not manually operate each switch to the locked state after unplugging the plug, the safety plate blocking the plug hole remains operable.

Therefore, there was a problem that safety accidents such as children's accidents occurred when the switch was not operated carelessly in the locked state.

Domestic Patent Registration No. 10-2086237 (registration date March 2, 2020) Domestic Patent Publication No. 10-2022-0054077 (publication date May 2, 2022) Domestic patent registration number 10-1727115 (registration date April 10, 2017)

Accordingly, the present invention was created to solve the conventional problems as described above, and its purpose is to automatically operate the lock switch the moment the user pulls out the plug and prevent the safety valve from being closed by foreign objects such as chopsticks, thus ensuring safety and reliability. The goal is to provide a safety device for this excellent outlet.

Another object of the present invention is to provide a safety device for an outlet that can prevent various safety accidents such as electric shock and short circuit by preventing the inflow of dust and moisture as well as conductive materials such as chopsticks.

The present invention for achieving the above object is fitted and seated in the plug connection part of the outlet (1), the first guide (11), the second guide (12), and the support piece (13) are integrally provided, and the plug through hole is provided. A base frame (10) through which (14) is drilled;
An inclined cam surface 21 is installed to be slideable on the upper surface of the base frame 10 as guided by the first guide 11 and guides the insertion of the plug 2 into the outlet 1, and the insertion of foreign substances. A pair of safety blocks (20) in which a blocking surface (22) is integrally formed, and the installation grooves (23) are concavely formed to face each other;
A first spring 30 that is inserted into the installation groove 23 in a state to prevent separation and elastically supports the safety blocks 20;
In the guide of the second guide 12, the lock switch 60 is installed on the upper surface of the base frame 10 to be able to slide in a direction perpendicular to the safety blocks 20;
The base frame 10 includes a pair of locking protrusions 50 integrally formed to protrude on both sides;
Hooks 61 provided integrally with the lock switch 60 to be hung on the locking protrusions 50;
a second spring (70) elastically installed between the lock switch (60) and the support piece (13);
When the plug enters the position of the plug through hole 14 by guiding the inclined cam surface 21 of the safety blocks 20, the hooks 61 of the lock switch 60 are pressed to release the lock from the locking protrusion 50. Preferably, the safety blocks 20 include a release member 80 integrally molded into a ring shape.

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The upper part of the base frame 10 may be covered with a cover 40 through which the plug through hole 41 and the slide hole 42 are respectively formed.

In addition, several assembly holes 15 are drilled in the base frame 10 and the position is fixed through screws 16.

The present invention as described above has excellent safety and reliability by automatically returning the lock switch to a position that covers the plug hole the moment the user pulls out the plug, and preventing the safety block from being operated by objects such as chopsticks.

In addition, by preventing the inflow of dust and moisture as well as conductive objects such as chopsticks, various safety accidents such as electric shock and short circuits can be prevented and the service life of outlets or power strips can be significantly extended.
In addition, it has excellent safety and reliability effects by switching to an automatic locking state without any additional manipulation.

Figure 1 is a perspective view showing the safety device of the present invention.
Figure 2 is an exploded perspective view of the main part of the present invention.
Figure 3 is a plan view showing a state in which the safety block slide operation is prevented by the lock switch of the present invention.
Figure 4 is a plan view showing a state in which a safety block slide operation is possible by manipulating the lock switch of the present invention.
Figure 5 is a plan view showing the present invention in a state in which the safety block slides and moves by inserting a plug and the lock switch is released.
Figure 6 is a perspective view of Figure 3.
Figure 7 is a perspective view of Figure 4.
Figure 8 is a perspective view of Figure 5.
Figure 9 is a cross-sectional view taken along line AA of Figure 3.
Figure 10 is a cross-sectional view taken along line BB of Figure 4.
Figure 11 is a cross-sectional view taken along line CC of Figure 5.
Figure 12 is a cross-sectional view illustrating the present invention mounted inside an outlet.

The present invention can be modified in various ways and can have various embodiments, and specific embodiments will be illustrated and described in the drawings.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

The term and/or includes any of a plurality of related stated items or a combination of a plurality of related stated items.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be.

On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, embodiments will be described in detail with reference to the attached drawings, but identical or corresponding components will be assigned the same reference numbers regardless of reference numerals, and duplicate descriptions thereof will be omitted.

The present invention can be simply installed in an outlet provided for plug connection (including a multi-tap, hereinafter referred to as an outlet) to prevent safety accidents from occurring due to foreign objects such as chopsticks being inserted, and the safety device automatically activates when the plug is pulled out. It was invented to operate with excellent safety and convenience.

Normally, in order to receive electricity from the outlet (1), the plug (2) of an electric or electronic device is inserted into a plurality of plug connection parts (2) to make an electrical connection, and the electrical connection is made to the terminal connected to the wire inside. A connection is made.

In addition, during long-term use of various electrical and electronic devices, moisture, liquid foreign substances, dust, etc. may flow into the interior where the electrical terminals are located through the plug hole drilled in the plug connection part and stick to it.

Additionally, curious children may insert tools such as chopsticks into the plug hole, resulting in safety accidents such as electric shock.

In order to prevent such safety accidents, the safety block 20 automatically blocks the entrance to the plug hole the moment the plug 2 is pulled out from the outlet 1, thereby preventing the entry of various foreign substances, especially conductive objects such as chopsticks. It was designed to be blocked safely.

The base frame 10 is made of disk-shaped synthetic resin and, when combined with the cover 40, can be installed separately outside the plug connection part of the outlet 1.

Additionally, it may be mounted inside the outlet 1 as shown in FIG. 12 .

The first guide 11, the second guide 12, and the support piece 13 are integrally provided on the upper surface of the base frame 10.

Then, plug through holes 14 are drilled so that the plug pin enters the interior of the outlet 1 to enable electrical connection.

The first guide 11 guides the slide movement of the safety blocks 20, and the second guide 12 guides the slide movement of the lock switch 60 in a direction perpendicular to the first guide 11. .

The safety blocks 20 are a pair of two symmetrical shapes and are seated in a slideable state on the upper surface of the base frame 10 guided by the first guide 11, and the plug 2 is located at the top of the outlet 1. A blocking surface 22 to prevent the insertion of foreign substances such as chopsticks is formed integrally with the inclined cam surface 21 to guide the insertion into the .

These safety blocks 20 are elastically supported by the first spring 30 and always maintain the direction in which they are spread apart.

As shown in Figures 3 and 4, when the safety blocks 20 are separated from each other due to the elasticity of the first spring 30, the upper part of the plug through hole 14 is formed so that the plug pin enters the inside of the outlet 1. is blocked.

Here, the first spring 30 is installed in the safety blocks 20 by forming the installation grooves 23 concavely at opposing positions so that the first spring 30 is prevented from being separated.

These safety blocks 20, the lock switch 60, which will be described later, and the first spring 30 and second spring 70 can all be installed inside the outlet 1. (FIG. 12 )

In addition, the base frame 10 may be mounted on the plug connection portion of the outlet 1 with the cover 40 covering the top of the base frame 10 with each of the above-mentioned components accommodated inside (FIG. 11).

A plug through hole 41 is drilled in the cover 40 at a position corresponding to the plug through hole 14, so that the cylindrical pin of the plug 2 penetrates the plug through hole 41 and the plug through hole 14 to connect to the outlet. Electrical connection can be made inside (1).

Meanwhile, on the base frame 10, a pair of locking protrusions 50 are integrally formed to protrude while maintaining a distance on both sides, so that when the user wants to use electric appliances, the lock switch 60 is moved. In a state where the plug can be connected, the lock switch 60 is turned on to prevent it from moving.

The lock switch 60 is installed to be able to slide in a direction perpendicular to the safety blocks 20 on the upper surface of the base frame 10 guided by the second guide 12, and the locking protrusions 50 A plurality of hooks 61 are integrally formed to be hung on.

In addition, when the cover 40 is installed in the form of a separate plug on the plug connection part while covering the upper part of the base frame 10, the lock switch 60 and the lock switch 60 are connected through the slide hole 42 drilled in the cover 40. The upper part is exposed to the outside and can be manipulated so that the hook 61 is hung on the locking protrusion 50 by the user's choice.

In addition, when installed inside the outlet 1 without a separate cover 40, a guide groove for operating the lock switch 60 must be provided at the plug connection part.

This lock switch (60) is elastically installed between the support pieces (13) by the second spring (70) and is positioned between the safety blocks (20) when the hook (61) is free from the locking protrusion (50). It is located in and maintains a locked state to prevent the safety blocks 20 from being operated.

In order to release this lock, in the present invention, ring-shaped release members 80 are further integrally formed with the safety blocks 20.

Therefore, when the round end portion of the plug comes into contact with the inclined cam surface 21 of the safety blocks 20, the safety blocks 20 move as guided by the inclined cam surface 21, and the plug 2 moves through the plug through hole 14. ) is entered into the position.

At this time, the hooks 61 of the lock switch 60 are pressed by the release member 80 to release the lock from the locking protrusion 50, and the moment the plug 2 is pulled out from the outlet 1, the lock switch 60 is automatically opened. It is restored by the elasticity of the second spring 70 and can be converted to a locked state.

The base frame 10 can be directly fixed inside the cover 40 or the outlet 1 through screws 16 by drilling several assembly holes 15.

Figures 3 and 6 show a locked state in which the lock switch 60 is normally unlocked and positioned between the safety blocks 20 by the elasticity of the second spring 70.

In this locked state, the slide operation of the safety block 20 is blocked even when the plug 2 as well as an object such as chopsticks is connected.

Figures 4 and 7 show a state in which the lock switch 60 is moved while pressing the elasticity of the second spring 70 through the user's manipulation, and the elastic hook 61 is hung on the locking protrusion 50 and the lock is unlocked. I'm doing it.

In this state, when connecting the plug (2), the safety block (20) can slide under the guidance of the inclined cam surface (21), allowing the plug pin to enter through the plug through hole (14) from the outlet (1) to the plug (2). ), an electrical connection can be made.

Figures 5 and 8 show a state in which the safety block 20 slides under the guidance of the inclined cam surface 21 when connecting the plug 2, and the plug pin can enter through the plug through hole 14.

In this state, the hooks 61 of the lock switch 60 are released from the locking protrusion 50 by pressing the release member 80 of the safety block 20.

FIG. 11 illustrates a state in which the cover 40 is installed exposed to the outside of the plug connection portion and the plug 2 is completely electrically connected to the outlet 1 by entering the plug pin.

In this state, at the moment the plug (2) is pulled out from the outlet (1), the hook (61) of the lock switch (60) is already unlocked, so it returns to the elasticity of the second spring (70) and the safety block as shown in FIG. It is located between (20) and can be automatically and quickly switched to the locked state.

Therefore, by switching to the automatic locking state without any separate operation, various safety accidents are prevented, resulting in excellent safety and reliability.

In addition, it should be noted that the safety device of the present invention can be installed on both outlets 1 installed on the wall and power strips provided with a plurality of outlet holes.

In the above, the present invention has been described in detail only with respect to the described embodiments, but it is obvious to those skilled in the art that various changes and modifications are possible within the technical scope of the present invention, and it is natural that such changes and modifications fall within the scope of the appended patent claims. will be.

10 - Base frame
11 - 1st guide
12 - 2nd guide
13 - Support piece
14 - Plug through hole
20 - Safety block
21 - Inclined cam surface
22 - blocking surface
23 - Installation groove
30 - 1st spring
40 - Cover
41 - Plug through hole
42 - Slide hole
50 - Stumbling block
60 - Lock switch
61 - Hook
70 - 2nd spring
80 - Release member

Claims (4)

A base frame (10) that is inserted and seated in the plug connection part of the outlet (1), is integrally provided with a first guide (11), a second guide (12), and a support piece (13), and has a plug through hole (14) drilled therein. class;
An inclined cam surface 21 is installed to be slideable on the upper surface of the base frame 10 as guided by the first guide 11 and guides the insertion of the plug 2 into the outlet 1, and the insertion of foreign substances. A pair of safety blocks (20) in which a blocking surface (22) is integrally formed, and the installation grooves (23) are concavely formed to face each other;
A first spring 30 that is inserted into the installation groove 23 in a state to prevent separation and elastically supports the safety blocks 20;
In the guide of the second guide 12, the lock switch 60 is installed on the upper surface of the base frame 10 to be able to slide in a direction perpendicular to the safety blocks 20;
The base frame 10 includes a pair of locking protrusions 50 integrally formed to protrude on both sides;
Hooks 61 provided integrally with the lock switch 60 to be hung on the locking protrusions 50;
a second spring (70) elastically installed between the lock switch (60) and the support piece (13);
When the plug enters the position of the plug through hole 14 by guiding the inclined cam surface 21 of the safety blocks 20, the hooks 61 of the lock switch 60 are pressed to release the lock from the locking protrusion 50. A safety device for an outlet, characterized in that the safety blocks (20) include a release member (80) integrally molded into a ring shape.
delete In claim 1,
A safety device for an outlet, characterized in that the upper part of the base frame (10) is covered with a cover (40) through which the plug through hole (41) and the slide hole (42) are respectively pierced.
In claim 1,
A safety device for an outlet, characterized in that the cover (40) is fixed in position through screws (16) by drilling several assembly holes (15) in the base frame (10).

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