KR20220145160A - Plug connector - Google Patents

Abstract

A plug connector having improved optical characteristics is provided. To this end, a plug connector according to the present invention includes: a plug body inserted into a socket connector, optically connected to the socket connector, and formed with a locking elastic piece locked to the socket connector on an outer circumferential surface thereof; and a plug housing in which the plug body protrudes from a front end and an unlocking elastic piece for unlocking the locking elastic piece is formed on an outer circumferential surface thereof. The plug body is slidably disposed forward and backward in the plug housing.

Description

plug connector {PLUG CONNECTOR}

The present invention relates to a plug connector, and more particularly, to a plug connector having one end inserted into the socket connector and optically connected to the socket connector.

In general, the optical connector used for connection of optical fiber, which is the transmission medium of optical communication, is widely used in optical links such as various communication devices, precision instruments, audio and video devices, and sensors, and there are LC, FC, ST and SC optical connectors.

An optical connector is an optical device that connects different optical fibers mechanically so that their central axis coincides with each other to enable optical communication. Since it has the advantage of being able to connect repeatedly, it is currently used when connecting an optical fiber distribution panel or an optical end station device to an optical line, or when connecting an optical fiber cable, or as an input/output terminal of an optical measuring instrument.

The optical connector includes a pair of connectors that are optically connected to each other, and among the pair of connectors, a plug connector that is a male connector and a socket connector that is a female connector are configured.

Korean Patent Publication No. 10-2020-0044928 (published on April 29, 2020) (hereinafter referred to as 'prior art') discloses 'a connector assembly, a plug connector thereof, and a core unit'.

The prior art plug connector includes a plug body, a front housing, and a rear housing, wherein the plug body is inserted into the socket connector to be optically connected to the socket connector, and the front housing is the plug body is a configuration integrally assembled in the front, and the rear housing is a configuration in which a cable optically connected to the plug body is assembled.

In the prior art plug connector, the front housing together with the plug body is moved to the rear housing by the pressure applied to the plug body while the plug body is inserted into the socket connector and optically connected to the socket connector. It is configured to move backwards with respect to the This operation is such that the plug body and the front housing are integrally assembled, and the rear housing is inserted into the front housing and slides back and forth while being supported by a plug floating spring disposed inside the front housing. because there is

However, since the plug connector of the prior art has a structure in which the plug body and the front housing are integrally assembled and the rear housing is installed in the front housing while being supported by the plug floating spring, the plug body When inserted into the socket connector, there is a problem in that the optical properties are deteriorated due to the impact applied to the plug body.

In addition, in the prior art plug connector, when assembling the rear housing to the front housing after assembling the cable to the rear housing, care must be taken not to separate the plug floating spring from the front housing, so that the assembly operation is easy. There were also some difficult problems.

Republic of Korea Patent Publication No. 10-2020-0044928 (published on April 29, 2020)

SUMMARY OF THE INVENTION An object of the present invention is to provide a plug connector having improved optical properties.

Another object to be solved by the present invention is to prevent the plug body from being damaged by strong pressure when it is inserted into the socket connector, and to assemble the cable into the plug housing when the plug body is assembled into the plug housing It is to provide a plug connector that can work.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a plug connector according to the present invention is composed of a plug body and a plug housing. The plug body is inserted into the socket connector to be optically connected to the socket connector. An elastic piece for locking to the socket connector is formed on an outer circumferential surface of the plug body. The plug body is protruded from the front end of the plug housing. An unlocking elastic piece for unlocking the locking elastic piece is formed on an outer circumferential surface of the plug housing. The plug body is slidably disposed back and forth on the plug housing.

A slider may be disposed to be slidable back and forth in the plug housing. The slider may be connected to the plug body and slide back and forth together with the plug body. An elastic member may be disposed in the plug housing. The elastic member may be disposed in contact with the rear of the slide to provide an elastic force to the plug body.

A guide hole may be formed in the front and rear lengths of the plug housing. A guide protrusion may be formed on the slider. The guide protrusion may be inserted into the guide hole and move along the guide hole when the slider slides back and forth.

The guide protrusion may be formed with a locking protrusion. The locking protrusion may be caught on an outer circumferential surface of the plug housing to slidably couple the slider back and forth to the plug housing.

A seating groove may be formed in the slider opposite to the guide protrusion. A seating protrusion to be seated in the seating groove may be formed at the rear end of the plug body.

The plug body may be formed of a pair of plug bodies spaced apart from each other in a direction perpendicular to a slide direction of the plug body. The seating protrusions may be formed of a pair of seating protrusions respectively formed at rear ends of the pair of plug bodies. The seating groove may be formed of a pair of seating grooves in which the pair of seating projections are respectively seated.

The guide hole may be formed as a pair of guide holes spaced apart from each other in a direction perpendicular to a slide direction of the pair of plug bodies. The guide protrusion may be formed as a pair of guide protrusions respectively inserted into the pair of guide holes. The locking protrusion may be formed as a pair of locking protrusions respectively formed on the pair of guide protrusions.

The elastic member may be provided as a coil spring disposed in front and back. A first insertion protrusion to be inserted into the front end of the coil spring may be formed in the slider between the pair of seating grooves. A second insertion protrusion to be inserted into the rear end of the coil spring may be formed inside the plug housing.

The plug housing may include a housing body and a housing cover. The plug body may be disposed at a front end of the housing body. A cable socket portion into which a cable tip is inserted may be formed at the rear end of the housing body. The cable tip may be disposed at a distal end of a cable to be optically connected to the plug body. The housing cover may be coupled to the housing body. An elastic piece for releasing the lock may be formed on an outer surface of the housing cover. The housing cover may be disposed in front of the cable socket to cover the front end of the housing body.

A locking slit may be formed in the front and rear of the cable socket. A cable fixing cap may be fastened to the cable socket part. A screw thread for fastening with a screw thread formed on an outer circumferential surface of the cable socket part is formed on an inner circumferential surface of the cable fixing cap, and the cable fixing cap may be fastened to the cable socket part.

The details of other embodiments are included in the detailed description and drawings.

In the plug connector according to the present invention, since the plug body is slidably arranged back and forth in the plug housing, when the plug body is inserted into the socket connector, an impact applied to the plug body is absorbed, thereby improving optical properties. .

In addition, in the plug connector according to the present invention, since the plug body is slidably disposed in the plug housing back and forth, it is possible to prevent the plug body from being damaged by strong pressure when the plug body is inserted into the socket connector. have.

In addition, in the plug connector according to the present invention, since the plug body is slidably disposed in the plug housing back and forth, the cable assembly operation can be performed in the plug housing while the plug body is assembled to the plug housing. , it is possible to prevent the plug body from being separated from the plug housing in the process of assembling the cable to the plug housing.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view showing a plug connector according to an embodiment of the present invention;
2 is an exploded perspective view showing a state in which the protective cap is disassembled in FIG. 1;
3 is a cross-cut perspective view of the plug connector shown in FIG. 1, excluding the cable;
4 is an exploded perspective view of FIG. 3 except for the protective cap;
5 is a perspective view showing the plug body and the housing body from another angle in FIG. 4;
FIG. 6 is an exploded perspective view showing the slider and the elastic member in FIG. 5 from a different angle; FIG.

Hereinafter, a plug connector according to an embodiment of the present invention will be described with reference to the drawings.

1 is a perspective view illustrating a plug connector according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view illustrating a state in which the protective cap is disassembled in FIG. 1 .

1 and 2 , the plug connector 1 according to the embodiment of the present invention may be optically connected to a socket connector (not shown). Here, the socket connector may be a female connector. That is, the plug connector 1 according to the embodiment of the present invention may be a male connector optically connected to the socket connector by inserting the front end into the insertion hole of the socket connector.

In addition, the plug connector 1 according to the embodiment of the present invention may be used as an optical connector. However, the plug connector 1 according to the embodiment of the present invention does not necessarily have to be used as an optical connector, and may be used for various purposes within the range of being used as a communication connector electrically connected to the socket connector.

At the front end of the plug connector 1 , plug bodies 120 and 130 that are inserted into the socket connector and optically connected to the socket connector may be protruded.

A protection cap 1A may be coupled to the front end of the plug connector 1 to prevent damage to the plug bodies 120 and 130 by surrounding the plug bodies 120 and 130 so as not to be exposed to the outside. At the rear end of the protective cap 1A, a plurality of elastic coupling protrusions 1B may be formed to protrude rearward. The plurality of elastic coupling protrusions 1B may be disposed to be spaced apart from each other in the circumferential direction of the protective cap 1A. A plurality of elastic coupling protrusions 1B are inserted into the coupling ring 110 provided at the front end of the outer cap 100 of the plug connector 1 and elastically caught on the inner wall of the coupling ring 110, so that the protective cap 1A is It may be coupled to the front end of the plug connector (1).

The coupling ring 110 may be slidably arranged back and forth at the front end of the outer cap 100 . In a state in which a plurality of elastic coupling protrusions 1B are inserted into the coupling ring 110 and the protective cap 1A is coupled to the coupling ring 110 , the user slides the coupling ring 110 backward to obtain a plurality of elastic coupling protrusions 1B. By releasing the coupling of the elastic coupling protrusion (1B), it is possible to separate the protective cap (1A) from the coupling ring (110). The user can optically connect the plug bodies 120 and 130 to the socket connector by inserting the plug bodies 120 and 130 into the socket connector after separating the protection cap 1A from the coupling ring 110 .

The plug bodies 120 and 130 may be provided as a pair of plug bodies 120 and 130 spaced apart from each other in the left and right directions. The pair of plug bodies 120 and 130 may include a first plug body 120 and a second plug body 130 . The first plug body 120 and the second plug body 130 may be disposed to be spaced apart from each other in the left and right directions. The first plug body 120 and the second plug body 130 may be disposed to be spaced apart from each other in the width direction of the plug connector 1 .

Locking elastic pieces 122 and 132 that are locked to the socket connector may be formed on the outer peripheral surfaces of the plug bodies 120 and 130 . When the plug bodies 120 and 130 are inserted into the socket connector, the locking elastic pieces 122 and 132 are locked to the internal structure of the socket connector, so that the plug bodies 120 and 130 are separated from the socket connector. it may not be On the other hand, the locking elastic pieces 122 and 132 are unlocked from the internal structure of the socket connector when pressed by the unlocking elastic pieces 152 (refer to FIGS. 3 and 4) to be described later, so that the plug body 120, 130) may be separated from the socket connector.

The locking elastic pieces 122 and 132 include a first locking elastic piece 122 formed on an outer peripheral surface of the first plug body 120 and a second locking elastic piece formed on an outer peripheral surface of the second plug body 130 . (132).

A cable C may be coupled to the rear end of the plug connector 1, and terminals 121 and 131 optically connected to the socket connector when inserted into the socket connector are provided on the plug bodies 120 and 130 on the front side. can be placed in The terminals 121 and 131 may be optically connected to a pair of thin optical lines disposed inside the cable C and the inside of the plug bodies 120 and 130, respectively.

The terminals 121 and 131 may be slidably disposed back and forth on the plug bodies 120 and 130 , and springs for elastically supporting the terminals 121 and 131 may be installed inside the plug bodies 120 and 130 . . When the plug bodies 120 and 130 are inserted into the socket connector, the terminals 121 and 131 may be pushed to the terminal provided inside the socket connector and slide rearward. At this time, the plug bodies 120 and 130 ), the spring that elastically supports the terminals 121 and 131 in the terminal is compressed by being pushed backward by the terminals 121 and 131, so that when the plug bodies 120 and 130 are later separated in the socket connector, the terminals ( 121 and 131) may be slid forward, which is the original position, by the elastic force of the spring.

The terminals 121 and 131 may include a first terminal 121 disposed on the front surface of the first plug body 120 and a second terminal 131 disposed on the front surface of the second plug body 130 . have.

A cable protection spring 105 may be installed at the rear end of the plug connector 1 . The front end of the cable protection spring 105 may be inserted into the rear end of the plug connector 1 . The cable protection spring 105 surrounds the outer peripheral surface of the front end of the cable (C) to prevent damage or twisting of the cable (C).

3 is a cutaway perspective view cut transversely from the plug connector shown in FIG. 1 except for the cable, FIG. 4 is an exploded perspective view shown in FIG. 3 except for the protective cap, and FIG. 5 is the plug body and the housing body in FIG. A perspective view shown at an angle, FIG. 6 is an exploded perspective view showing the slider and the elastic member in FIG. 5 at different angles.

1 to 6 , the plug connector 1 according to the embodiment of the present invention may further include plug housings 140 and 150 . The plug bodies 120 and 130 may be disposed to protrude forward from the front ends of the plug housings 140 and 150 , and the cable C may be coupled to the rear ends of the plug housings 140 and 150 .

The plug connector 1 may further include a cable tip 190 , a tip fixing ring 195 , and a cable fixing cap 180 . The cable tip 190 , the tip fixing ring 195 , and the cable fixing cap 180 may be configured to couple the cable C to the rear ends of the plug housings 140 and 150 .

The plug housings 140 and 150 , the cable tip 190 , the tip fixing ring 195 , and the cable fixing cap 180 may be disposed inside the outer cap 100 . The plug bodies 120 and 130 may be disposed to protrude forward from the front end of the outer cap 100 .

The cable tip 190 and the tip fixing ring 195 may be configured to be installed at the front end of the cable (C), and the cable fixing cap 180 is the cable tip 190 coupled to the front end of the cable (C). It may be configured to be fixed to the cable socket part 145 formed at the rear end of the plug housings 140 and 150 .

The cable fixing cap 180 may be formed in a cylindrical shape opened from the front end to the rear end, the opening at the front end may be formed to have a larger diameter than the opening at the rear end, and the opening at the rear end is slightly larger than the outer circumferential surface of the cable (C). Thus, the cable (C) may pass through the cable fixing cap 180 back and forth.

A process of assembling the cable C to the plug housings 140 and 150 will be briefly described as follows.

In a state in which the cable fixing cap 180 is covered on the outer circumferential surface of the cable C so that the cable C passes through the cable fixing cap 180 back and forth, the rear end of the cable tip 190 is the front end of the cable tip 190 . The diameter is formed smaller than that is inserted into the front end of the cable (C), the front end of the cable tip 190 is disposed outside the front end of the cable (C). In this state, the tip fixing ring 195 is covered on the outer peripheral surface of the front end of the cable (C) so that the rear end of the cable tip 190 does not come out from within the front end of the cable (C). Thereafter, after inserting the cable tip 190 into the cable socket part 145 formed at the rear end of the plug housings 140 and 150 , and fastening the cable fixing cap 180 to the cable socket part 145 , the cable ( C) may be installed in the cable socket part 145 . In this state, a pair of thin optical lines inside the cable C protrude forward of the cable tip 190 through the center hole 192 formed in the center of the cable tip 190, and the pair of The thin optical wires may be respectively inserted into the rear ends of the pair of plug bodies 120 and 130 to be optically connected to the terminals 121 and 131 , respectively.

Meanwhile, the locking elastic pieces 152 for unlocking the locking elastic pieces 122 and 132 formed on the plug bodies 120 and 130 may be formed on the outer peripheral surfaces of the plug housings 140 and 150 .

The locking elastic pieces 122 and 132 may have front ends integrally formed with the outer peripheral surfaces of the plug bodies 120 and 130 , and the remaining portions may be disposed to be spaced apart from the outer peripheral surfaces of the plug bodies 120 and 130 . The rear ends of the locking elastic pieces 122 and 132 may be formed as free ends.

The elastic piece 152 for unlocking may have a rear end formed integrally with the outer circumferential surfaces of the plug housings 140 and 150 , and the remaining portions may be disposed to be spaced apart from the outer circumferential surfaces of the plug housings 140 and 150 . The front end of the elastic piece 152 for unlocking may be formed as a free end.

The rear ends of the locking elastic pieces 122 and 132 may be inserted into the inner space (lower space in the drawing) of the front end of the locking unlocking elastic piece 152 . When the user presses the locking elastic piece 152 from the outside of the plug housings 140 and 150, the unlocking elastic piece 152 presses the locking elastic piece 122, 132 to the locking elastic piece 122, 132) can be unlocked from the socket connector. In this embodiment, since the plug bodies 120 and 130 are slidable back and forth with respect to the plug housings 140 and 150, when the plug bodies 120 and 130 are slid back and forth, the locking elastic pieces 122 and 132 are It may be further inserted into the inner space (lower space in the drawing) of the elastic piece 152 for unlocking.

The unlocking elastic piece 152 may have a left and right width wider than the sum of the left and right widths of the first elastic piece for locking 122 and the left and right widths of the second elastic piece 132 for locking.

The plug bodies 120 and 130 may be disposed to be slidable back and forth in the plug housings 140 and 150 . Through this, it is possible to prevent the plug bodies 120 and 130 from being damaged by strong pressure when they are inserted into the socket connector, and the plug bodies 120 and 130 are assembled into the plug housings 140 and 150 . Since the cable (C) assembly operation can be performed in the plug housings (140, 150) in the process of assembling the cable (C) to the plug housings (140, 150), the plug bodies (120, 130) can 150) to prevent separation.

An elastic member 170 may be disposed in the plug housings 140 and 150 . The elastic member 170 may provide elastic force to the plug bodies 120 and 130 .

In the plug housings 140 and 150 , the slider 160 may be slidably disposed forward and backward. An elastic member 170 may be disposed in contact with the rear of the slider 160 . The slider 160 may be connected to the plug bodies 120 and 130 and slide back and forth together with the plug bodies 120 and 130 .

In the plug housings 140 and 150 , guide holes 142 and 143 may be formed long in front and back. Guide protrusions 161 and 162 may be formed on the slider 160 . The guide projections 161 and 162 are inserted into the guide holes 142 and 143 and move along the guide holes 142 and 143 when the slider 160 slides back and forth to guide the front and rear slide of the slider 160. have.

Locking projections 163 and 164 may be formed below the guide projections 161 and 162 . The locking protrusions 163 and 164 are caught on the outer peripheral surfaces of the plug housings 140 and 150 to slidably couple the slider 160 back and forth to the plug housings 140 and 150 .

The slider 160 may have seating grooves 165 and 166 formed on the upper side opposite to the guide protrusions 161 and 162 . At the rear ends of the plug bodies 120 and 130 , seating protrusions 123 and 133 to be seated in the seating grooves 165 and 166 may be formed.

The plug bodies 120 and 130 may be formed of a pair of plug bodies 120 and 130 spaced apart from each other in a direction perpendicular to the slide direction of the plug bodies 120 and 130 . That is, the first plug body 120 and the second plug body 130 may be disposed to be spaced apart from each other in the left and right directions.

The seating projections 123 and 133 may be formed of a pair of seating projections 123 and 133 respectively formed at rear ends of the pair of plug bodies 120 and 130 . That is, the pair of seating protrusions 123 and 133 includes a first seating protrusion 123 formed at the rear end of the first plug body 120 and a second seating protrusion formed at the rear end of the second plug body 130 . 133) may be included.

The seating grooves 165 and 166 may be formed of a pair of seating grooves 165 and 166 in which the pair of seating protrusions 123 and 133 are respectively seated. That is, the pair of seating grooves 165 and 166 includes a first seating groove 165 in which the first seating protrusion 123 is seated, and a second seating groove 166 in which the second seating projection 133 is seated. may include

The guide holes 142 and 143 may be formed of a pair of guide holes 142 and 143 spaced apart from each other in a direction perpendicular to the slide direction of the pair of plug bodies 120 and 130 . That is, the pair of guide holes 142 and 143 may include a first guide hole 142 and a second guide hole 143 spaced apart from each other in the left and right directions.

The guide protrusions 161 and 162 may be formed of a pair of guide protrusions 161 and 162 respectively inserted into the pair of guide holes 142 and 143 . That is, the pair of guide protrusions 161 and 162 include a first guide protrusion 161 inserted into the first guide hole 142 and a second guide protrusion 162 inserted into the second guide hole 143 . may include.

The locking projections 163 and 164 may be formed of a pair of locking projections 163 and 164 respectively formed on the pair of guide projections 161 and 162 . That is, the pair of locking projections 163 and 164 includes a first locking projection 163 formed on the first guide projection 161 and a second locking projection 164 formed on the second guide projection 162 . can do. The first locking protrusion 163 may be formed to protrude from the end of the first guide protrusion 161 toward the second locking protrusion 164 . The second locking protrusion 164 may be formed to protrude from the end of the second guide protrusion 162 toward the first locking protrusion 163 .

The elastic member 170 may be provided with a coil spring 170 disposed in front and back. A first insertion protrusion 167 inserted into the front end of the coil spring 170 may be formed in the slider 160 between the pair of seating grooves 165 and 166 . A second insertion protrusion 147 inserted into the rear end of the coil spring 170 may be formed inside the plug housings 140 and 150 .

The plug housings 140 and 150 may include a housing body 140 and a housing cover 150 . An upper side of the front end of the housing body 140 may be opened. The housing cover 150 may cover the upper side of the opened front end of the housing body 140 .

At the front end of the housing body 140 , the plug bodies 120 and 130 may be disposed to be slidable back and forth. A slider 160 and an elastic member 170 may be installed inside the front end of the housing body 140 . The slider 160 may be slidably installed back and forth on the housing body 140 . The guide holes 142 and 143 may be formed in the housing body 140 . The elastic member 170 may be installed in the housing body 140 . The second insertion protrusion 147 may be formed inside the housing body 140 .

A cable socket part 145 into which the cable tip 190 is inserted may be formed at the rear end of the housing body 140 . The cable tip 190 may be disposed at the front end of the cable C for optically connecting to the plug bodies 120 and 130 .

The housing cover 150 may be coupled to the front end of the housing body 140 . Hook projections 141 may be formed on both sides of the housing body 140 . A pair of hook projections 141 may be formed on one side of the housing body 140 , and a total of four hook projections 141 may be formed on both sides of the housing body 140 . On both sides of the lower surface of the housing cover 150 , hook portions 151 having hook holes into which the hook projections 141 are inserted may be formed to protrude downward. The hook portion 151 may be formed in a number corresponding to a position corresponding to the hook protrusion 141 . The hook part 151 is disposed on both sides of the housing body 140 , and the hook protrusion 141 is inserted into the hook hole from the inside of the hook part 151 , so that the housing cover 150 is the front end of the housing body 140 . can be coupled to the

An elastic piece 152 for unlocking may be formed on the outer surface of the housing cover 150 . The housing cover 150 may be disposed in front of the cable socket part 145 to cover the front end of the housing body 140 .

A locking slit 146 may be formed in the front and rear of the cable socket part 145 . A cable fixing cap 180 may be fastened to the cable socket part 145 . On the inner circumferential surface of the cable fixing cap 180 , a screw thread fastened to a screw thread formed on the outer circumferential surface of the cable socket part 145 may be formed. The cable fixing cap 180 is fastened to the cable socket part 145 and presses the cable socket part 145 so that the width of the locking slit 146 is narrowed, so that the cable tip inserted into the cable socket part 145 is disposed. 190 and the tip fixing ring 195 may be coupled to the cable socket portion 145 .

As described above, in the plug connector 1 according to the embodiment of the present invention, since the plug bodies 120 and 130 are slidably arranged back and forth in the plug housings 140 and 150, the plug bodies 120 and 130 are When inserted into the socket connector, an impact applied to the plug bodies 120 and 130 may be absorbed, and optical properties may be improved.

In addition, in the plug connector 1 according to the embodiment of the present invention, since the plug bodies 120 and 130 are slidably disposed back and forth in the plug housings 140 and 150 , the plug bodies 120 and 130 are connected to the socket. When inserted into the connector, it can be prevented from being damaged by strong pressure.

In addition, in the plug connector 1 according to the embodiment of the present invention, since the plug bodies 120 and 130 are slidably disposed forward and backward on the plug housings 140 and 150 , the plug bodies 120 and 130 are connected to the plug housing. Since the cable (C) assembly operation can be performed on the plug housings (140, 150) in a state where the assembly on the (140, 150) is completed, in the process of assembling the cable (C) on the plug housings (140, 150), the plug body ( It is possible to prevent separation of the 120 and 130 from the plug housings 140 and 150 .

Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

1: plug connector 120, 130: plug body
122, 132: elastic piece for locking 123, 133: seating projection
140, 150: plug housing 142, 143: guide hole
145: cable socket 146: lock slit
147: second insertion protrusion 152: elastic piece for unlocking
160: slider 161, 162: guide projection
163, 164: locking projection 165, 166: seating groove
167: first insertion protrusion 170: elastic member
180: cable fixing cap 190: cable tip
C: cable

Claims (9)

a plug body inserted into the socket connector, optically connected to the socket connector, and formed with an elastic piece for locking on an outer circumferential surface of the socket connector to be locked to the socket connector; and
a plug housing in which the plug body protrudes from the front end, and an elastic release piece for unlocking the locking elastic piece is formed on an outer circumferential surface of the plug housing;
wherein the plug body is slidably disposed back and forth on the plug housing. The method according to claim 1,
a slider disposed to be slidable back and forth in the plug housing and connected to the plug body to slide back and forth together with the plug body; and
and an elastic member disposed in contact with the rear of the slide in the plug housing to provide an elastic force to the plug body. 3. The method according to claim 2,
In the plug housing, guide holes are formed long in front and behind,
A guide projection is formed in the slider that is inserted into the guide hole and moves along the guide hole when the slider slides back and forth;
A plug connector having a locking protrusion hooked on an outer circumferential surface of the plug housing to slidably couple the slider back and forth to the plug housing on the guide protrusion. 4. The method according to claim 3,
A seating groove is formed in the slider opposite to the guide projection,
A plug connector having a seating protrusion formed at a rear end of the plug body to be seated in the seating groove. 5. The method according to claim 4,
the plug body is formed of a pair of plug bodies spaced apart from each other in a direction perpendicular to a slide direction of the plug body;
The seating projection is formed of a pair of seating projections respectively formed on the rear end of the pair of plug bodies,
The seating groove is a plug connector formed of a pair of seating grooves in which the pair of seating projections are respectively seated. 6. The method of claim 5,
The guide hole is formed of a pair of guide holes spaced apart from each other in a direction perpendicular to the slide direction of the pair of plug bodies,
The guide projection is formed of a pair of guide projections respectively inserted into the pair of guide holes,
The locking projection is a plug connector formed of a pair of locking projections respectively formed on the pair of guide projections. 6. The method of claim 5,
The elastic member is provided with a coil spring disposed in front and behind,
A first insertion protrusion to be inserted into the front end of the coil spring is formed in the slider between the pair of seating grooves,
A plug connector having a second insertion protrusion inserted into the rear end of the coil spring inside the plug housing. The method according to claim 1,
The plug housing,
a housing body in which the plug body is disposed at a front end and a cable socket portion is formed at the rear end into which a cable tip disposed at the front end of a cable for optically connected to the plug body is inserted;
a housing cover coupled to the housing body and having the elastic piece for unlocking formed on an outer surface thereof;
The housing cover is disposed in front of the cable socket part to cover the front end of the housing body. 9. The method of claim 8,
Locking slits are formed in the front and rear of the cable socket,
and a cable fixing cap having a screw thread formed on an outer circumferential surface of the cable socket unit and a screw thread fastened to the inner circumferential surface and fastened to the cable socket unit.

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