KR101225645B1 - Plug and line type receptacle having the structure for preventing disconnection - Google Patents

Abstract

PURPOSE: A plug and line outlet including a breakaway prevention structure is provided to perfectly combine a plug and a line outlet by inserting an insertion pin of a rotation insertion unit into an insertion groove of the line outlet. CONSTITUTION: A plug is inserted into a line outlet. An insertion pin(131) of the rotation insertion unit is inserted into an insertion groove by rotating the rotation insertion unit. When a length(D) between both end units of each insertion pin is equal to a distance between inner walls(W) of insertion grooves, the insertion unit sticks to the insertion groove. The plug is perfectly held in the line outlet.

Description

PLUG AND LINE TYPE RECEPTACLE HAVING THE STRUCTURE FOR PREVENTING DISCONNECTION}

The present invention relates to a plug and line outlet of a novel structure that can physically completely prevent the plug from being easily detached from the line outlet by an external force.

Concentric plugs (receptacle), which is a mechanism for connecting plugs to wires for connecting cords used indoors in indoor wiring of electricity, generally have limited inlet grooves for connecting plugs.

In order to remove the restrictions on the use of such a general socket, a line outlet has been proposed in which a holder (connection terminal part) is mounted in a longitudinal direction inside a case having a predetermined length so that a plurality of plugs can be connected and used with a single wiring. .

On the other hand, a holder (connection terminal portion) mounted inside the casing of the line outlet and connected to the plug is generally formed with a U-shaped inlet groove to insert the connection lead pin of the plug into the inlet groove.

In the case of the above-mentioned line outlet, the plug (line connection part) of the line outlet is expanded or the elasticity becomes weak when the plug is repeatedly connected to or disconnected from the line outlet or the cable is used for a long time. Accordingly, there is a problem in that detachment of the plug due to poor connection or external force occurs frequently.

To solve this problem, the round bent portion inwardly bent in the holder (15, 16) assembled on the support frame (1) in the Republic of Korea Utility Model No. 20-0145580 (June 15, 1999) The ground piece 18 having the trough groove 18b is inserted by 17a, and the front end of the round bent portion 18a is the inner bent point 17a 'of the round bent portion 17a of the holders 15 and 16. A line outlet having a structure in which a plug is inserted in a state supported by a state in which it is inserted in a supported state, is supported in a mutually elastic manner, and doublely supported by the holders 15 and 16 and the ground piece 18 when the plug F is connected ( See FIG. 1).

However, the above invention can support the connecting lead pin of the plug elastically by the holder and the grounding piece in a double way to prevent the holder part from expanding or weakening to some extent, but the plug can be repeatedly disconnected or used for a long time. Inevitably, the expansion of the holder and the weakening of the elastic force cannot be avoided, and in particular, the flow or detachment of the plug due to an unintentional external force cannot be prevented at the source.

The present invention for solving the above-mentioned problems is that when the plug is connected to the power supply by inserting the connection lead pin of the plug into the connection terminal of the line outlet, the plug flows easily from the line outlet due to an unexpected external force as well as a connection failure or easily It is an object of the present invention to provide a plug and line outlet having a new structure that can prevent physically completely.

In order to achieve the above object, the present invention, in the plug and line outlet, the plug, the body portion of the insulator is connected to the power line therein, one end is connected to the power line in the body portion and the other end is And a pair of connecting lead pins protruding outward from the body portion, and a rotation insertion portion rotatably coupled to the outer peripheral surface of the connection portion with the line outlet of the body portion in a forward and reverse direction, wherein the line outlet includes a support frame and the support. It consists of a holder portion of the insulator coupled to the inner side of the frame, and a pair of connecting terminal portion coupled to the inside of the holder portion so that the connection lead pin can be inserted, the rotation insert is inserted into the support frame and fixed Plug and line having a separation prevention structure, characterized in that the pair of engaging portions that can be formed in mutually opposite positions It provides cents.

In addition, the present invention, a pair of insertion pins are formed on the outer peripheral surface of one end of the rotary inserting portion projecting outward in the opposite direction to each other, the insertion portion is formed with insertion grooves that can be fixed to each of the insertion pins are formed It provides a plug and line outlet having a separation prevention structure characterized in that.

In addition, the present invention, the outer circumferential surface of the rotary insertion portion having a separation prevention structure characterized in that the knob which can easily rotate in the forward or reverse direction is formed to protrude in a position spaced apart from the insertion pin. Provides plugs and line outlets.

In addition, the present invention, the plug having a separation prevention structure characterized in that the insertion pin is inserted into the connection terminal portion and then rotate the rotation insertion portion in the forward or reverse direction so that the insertion pin is inserted into the insertion groove fixed. And line outlets.

In addition, the present invention, the knob is a pair, is formed to protrude outward in the opposite direction to each other, the protruding direction of the insertion pin and the protruding direction of the knob is plug and line having a separation prevention structure, characterized in that the same. Provide an outlet.

The plug and the line outlet according to the present invention insert the connection lead pin of the plug into the connection terminal of the line outlet, and then connect the power, and then insert the groove into the insertion hole formed in the line outlet by rotating the rotary insert coupled to the plug The plug and line outlet can be completely structurally connected by inserting them into the plug, so it is fundamental to prevent the plug from flowing out or the plug due to external force, as well as poor connection, regardless of the repetitive disconnection of the plug, the expansion of the holder part due to prolonged use, or the weakening of the elastic force. There is an excellent effect that can be prevented.

1 is an exploded perspective view showing a configuration of a conventional line outlet;
2 is an exploded perspective view of a plug and a line outlet according to the present invention;
3 is a perspective view showing a coupling state of a plug and a line outlet according to the present invention;
4 is a cross-sectional view of a coupling state of a plug and a line outlet according to the present invention;
5 is a side cross-sectional view of a plug according to the present invention;
6 and 7 are views showing the operating state of the rotary insertion unit when the plug and the line outlet are fastened.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention is not limited to the exemplary embodiments described herein, but may be embodied in many different forms, and parts not related to the description will be omitted for clarity.

On the other hand, there is a 2-pin receptacle and a 3-pin receptacle having a ground wire according to the number of pins of the plug, in the present invention will be described based on the 2-pin line outlet for convenience of understanding. However, the scope of the present invention is not limited thereto.

First, as shown in FIGS. 2, 3 and 5, the plug 1 having a separation prevention structure according to the present invention comprises a body portion 11, a connection lead pin 12, and a rotation insertion portion 13. do.

Body portion 11 is made of an insulator, the coated power line (L) is connected to the inside. The connecting lead pin 12, which is an electrical conductor, is composed of a pair, one end of which is connected to the power line L inside the body portion 11 and the other end of which protrudes out of the body portion 11.

One end of the body portion 11, that is, the outer peripheral surface of the connection portion with the line outlet 2 is coupled to the rotation inserting portion 13, which is an insulator freely rotatable in the forward or reverse direction.

On the outer circumferential surface of one end (connecting portion with the line outlet) of the rotary insertion portion 13, an insertion pin 131 protrudes outward and is integrally formed. The insertion pin 131 may be formed in a substantially thin plate shape as shown, and the pair of insertion pins 131 protrude in opposite directions to each other.

In addition, a knob 132 is provided on an outer circumferential surface of the rotation inserting portion 13 at a position spaced apart from the insertion pin 131 so that the user can easily rotate the rotation inserting portion 13 in the forward or reverse direction. It is formed integrally.

One or more knobs 132 are preferably formed, but are not limited thereto, and a pair may be formed. In addition, the knob 132 may be formed in a variety of known shapes that can prevent slippage when the user grasps the plug 1, but preferably, as shown in FIGS. It can be formed in a substantially plate shape projecting outward from the outer peripheral surface along the axial direction of.

When the knobs 132 are formed in pairs, the knobs 132 protrude in opposite directions to each other.

On the other hand, when the insertion pin 131 and the knob 132 are formed in a pair, respectively, it is preferable that the protruding direction of the insertion pin 131 and the protruding direction of the knob 132 are the same. This is because it is easy to check whether the plug 1 is physically coupled to the line outlet 2 through the direction (position) of the knob 132 when 1) is inserted into the line outlet 2.

As shown in FIGS. 3 and 4, the line outlet 2 includes a support frame 21 having a cross-section having a substantially 'C' shape, and a holder portion 22 of an insulator coupled to the inside of the support frame 21. And a pair of connection terminal portions 23 coupled to the inside of the holder portion 22 so that the connection lead pins 12, which are electrical conductors, can be inserted therein.

On the other hand, the coupling structure of the support frame 21 and the holder portion 22, the coupling structure of the holder portion 22 and the connection lead pin 12 may be used in a variety of known shapes or structures.

In the support frame 21 of the line outlet 2 according to the present invention, that is, the inner side of the side wall constituting the side surface of the support frame 21, holder plate fixing jaw 25 of approximately plate shape, respectively, the support frame 21 It is formed integrally extending horizontally in the center direction.

The holder part 22 is inserted into the support frame 21 and fixedly coupled by the holder part fixing jaw 25.

Both side walls of the support frame 21 extend further from the position of the holder part fixing jaw 25 to form the engaging part 24 inside each. Coupling portion 24 is formed on each side wall so that the rotation insert 13 of the plug 1 can be inserted and fixed.

The coupling portion 24 is formed in a plate shape extending horizontally in the center direction of the support frame 21 on both side walls of the support frame 21 at positions spaced apart from the holder fixing jaw 25 at regular intervals. A locking jaw 242 is provided.

Accordingly, an insertion recess 241 having a cross-section having a shape of a letter 'c' is formed between the holder fixing jaw 25 and the hooking jaw 242. Insertion pin 131 formed in the rotation insertion unit 13 is inserted into the insertion recess 241 in accordance with the rotation of the rotation insertion unit 13 is fixed and coupled.

In order to complete the coupling between the plug 1 and the line outlet 2, the height of the insertion recess 241 is equal to or slightly larger than the thickness of the insertion pin 131. The distance between the inner spaces (W) is preferably formed to be substantially the same as the length between both ends of the pair of insertion pins (131).

That is, as shown in FIG. 7, the plug 1 is inserted into the line outlet 2 to be connected, and then the rotation insertion unit 13 is rotated to insert the insertion pin 131 of the rotation insertion unit 13. When inserting into the groove 241, the insertion portion 131 when the length (D) between both ends of the insertion pin 131 is equal to the distance between the inner wall (W) of the pair of insertion grooves 241 facing each other. ) Is firmly in close contact with the insertion groove 241 it is possible to completely prevent the flow or separation of the plug (1) and the line outlet (2).

On the other hand, after inserting the plug (1) into the line outlet (2) and connected, when the rotary insertion portion 13 is rotated in the forward or reverse direction, the protruding edge portion of the insertion pin 131 is first inserted into each insertion groove ( In contact with the inner wall (W) of the 241. Since the diagonal length d between the edges of the insertion pins 131 protruding in opposite directions is slightly larger than the distance between the inner walls W of both insertion grooves 241, the rotation insertion part 13 is rotated in the forward or reverse direction. When the support frame 21 is elastically expanded in the process of making, and then the rotation insert 13 is rotated about 90 degrees, the support frame 21 is returned to its original state by tension. Accordingly, by the elastic contact between the support frame 21 and the insertion pin 131, the insertion pin 131 is firmly in close contact with the insertion recess 241 with a 'click' sound.

In addition, when the rotary insertion unit 13 is rotated to couple the insertion unit 131 to the insertion recess 241, the locking jaw of the support frame 21 is spaced apart from the insertion pin 131 and the knob 132 at the same time. Since 242 is inserted and fixed, it is possible to prevent the flow or detachment of the plug 1 and the line outlet 2 in double.

To this end, the separation distance between the insertion pin 131 and the knob 132 is preferably equal to or slightly larger than the thickness of the locking step 242.

Knob guides 243 may protrude from the end portions of both sidewalls of the support frame 21 to protrude. As shown in FIG. 4, when the knob guide 243 forms a step at the outer end of the knob 132, the step between the knob guide 243 and the knob 132 is engaged to the plug 1 and the line outlet 2. When combined to play a secondary role to prevent the flow or separation of the plug (1).

The operating states of the plug 1 and the line outlet 2 according to the invention are shown in FIGS. 6 and 7.

FIG. 6A shows a state where the connecting lead pin 12 of the plug 1 is inserted into the connecting terminal portion 23 of the line outlet 2. When inserting the plug 1 into the line outlet 2, as shown in (a), the pair of insertion pins 131 do not interfere with the locking step 242 of the line outlet 2 as shown in (a). ) Is positioned to be the same as the longitudinal direction of the line outlet (2).

(B) shows a state in which the plug 1 and the line outlet 2 are physically completely engaged. As shown in (b), the rotary insertion portion 13 is approximately 90 in the forward or reverse direction with the connecting lead pin 12 of the plug 1 inserted into the connecting terminal portion 23 of the line outlet 2. Rotating the insertion pin 131 is inserted and fixed to the insertion groove 241 and at the same time the locking jaw 242 is inserted and fixed in the space between the insertion pin 131 and the knob 132, so that the plug (1) and the line outlet ( 2) is completely physically coupled to prevent the flow or detachment of the plug 1 completely.

When the rotation insertion unit 13 is rotated approximately 90 degrees in the forward or reverse direction again in the state (B), the insertion pin 131 is separated from the insertion recess 241, and the locking jaw 242 is simultaneously inserted into the insertion pin 131. Since it is separated from the space between the knobs 132, the state A in which the plug 1 can be easily removed from the line outlet 2 is obtained.

As described above, when the protrusion direction of the pair of insertion pins 131 and the protrusion direction of the pair of knobs 132 are the same, the plug 1 may be inserted into the line outlet 2. When only the direction of the knob 132 to match the longitudinal direction of the line outlet 2, the interference between the insertion pin 131 and the locking jaw 242 can be avoided, and the plug 1 inserted into the line outlet 2 It is convenient because it is easy to see whether the plug 1 and the line outlet 2 are physically coupled or the state in which the plug 1 can be removed from the line outlet 2 by looking at the direction of the knob 132.

As described above, although some embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the present invention may be modified without departing from the principles or spirit of the present invention. You will know. Therefore, the scope of the present invention is not limited to the described embodiments, and various modifications and variations can be made without departing from the spirit and scope of the present invention, and such modifications or variations will be said to belong to the scope of the present invention. .

1: plug
11: Body part 12: Connection lead pin
13: rotary insert
131: insertion pin 132: knob
2: line outlet
21: support frame 22: holder portion
23: Connection terminal part
24: coupling part
241: insertion groove 242: locking jaw
243: knob guide
25: holder fixing jaw
L: power line

Claims (5)

For plugs and line outlets,
The plug,
A body portion of the insulator connected to the inside of the power line, one end is connected to the power line inside the body portion and the other end of the pair of connecting lead pins protruding out of the body portion, the connection to the line outlet of the body portion Consists of a rotation insertion unit rotatably coupled in the forward and reverse direction on the outer peripheral surface of the site,
The line outlet is,
A support frame, a holder portion of an insulator coupled to the inside of the support frame, and a pair of connection terminal portions coupled to the inside of the holder portion so that the connection lead pins can be inserted therein;
Inside the support frame is a pair of coupling parts that can be fixed by inserting the rotation insert is formed in a position facing each other,
On one outer circumferential surface of the rotary insertion portion, a pair of insertion pins are formed to protrude outwards in opposite directions to each other.
The coupling portion is a plug and line outlet having a separation prevention structure, characterized in that the insertion groove is formed to be inserted into each of the insertion pin is fixed. delete The method according to claim 1,
Plugs and line outlets having a separation prevention structure on the outer circumferential surface of the rotary inserting portion is formed to protrude in a position spaced apart from the insertion pin to easily rotate the rotary inserting portion in the forward or reverse direction. The method according to claim 3,
And a plug and line outlet having a separation preventing structure to insert the connection lead pin into the connection terminal part and rotate the rotation insertion part in a forward or reverse direction so that the insertion pin is inserted into the insertion recess. The method according to claim 3,
The knobs are formed in pairs, protruding outward in opposite directions to each other,
Plug and line outlet having a separation prevention structure, characterized in that the protrusion direction of the insertion pin and the protrusion direction of the knob is the same.

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