Waterproof Optical Connector

Abstract

The present invention provides a waterproof connector in which the end of the connector located inside the socket is composed of a fixed unit and a movable unit, so that when the socket is connected, the movement of the movable unit improves the socket connection force and increases the waterproofness. [Solution] The present invention relates to a waterproof connector, which includes a fixed unit in which a connection part connected to a first member of a socket is disposed, a movable unit which moves while being coupled to a part of the fixed unit, and an elastic part which applies an elastic force to the movable unit so as to move it away from the first member. The movable unit is positioned by linearly moving in the direction of the first member by the pressure of a second member which is coupled to the first member.

Description

[Technical field]

[0001] The present invention relates to a waterproof optical connector. [Background technology]

[0002] Optical signal transmission technology is a wired transmission technology that transmits information in the form of optical signals along a transmission path. Wired optical signal transmission technology that uses optical fiber lines made of glass and other materials for long-distance / short-distance large-capacity transmission is commonly used. Wired optical transmission technology is a multiplex transmission technology that uses the physical properties of light to use a single optical line as if it were multiple independent lines.

[0003] In this case, the optical communication transmitting terminal converts an electrical signal into an optical signal, which is then transmitted through an optical fiber line, and the receiving terminal converts the optical signal back into an electrical signal. The transmitting terminal and the receiving terminal each include a signal conversion module to which an optical fiber line is connected.

[0004] The signal conversion module is disposed inside a terminal box, and the terminal box is provided with sockets to which optical fiber lines are connected.

[0005] Referring to FIG. 11 of the drawings, the socket S is coupled to a terminal box and comprises a first member S1 to which a connector 1a of an optical fiber line is connected, and a second member S2 to protect the first member S1 from the external environment such as rainwater, dust, etc.

[0006] A part of the connector 1a is inserted into the first member S1 and connected, and the second member S2 is connected to the first member S1 so as to surround and protect the other part of the connector 1a exposed from the first member S1. The length of the connector 1a inserted into the first member S1 may vary depending on the connecting position of the first member S1. If the part of the connector 1a is not inserted further into the first member S1 than the set value, there is a problem that the second member S2 is not completely connected to the first member S1. As a result, rainwater, dust, etc. flow into the socket S, reducing its waterproofing. Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention provides a waterproof connector in which the end of the connector located inside the socket is composed of a fixed unit and a movable unit, so that when the socket is connected, the movement of the movable unit improves the socket connection force and increases the waterproofness. [Means for solving the problem]

[0008] A waterproof connector according to one embodiment of the present invention includes a fixed unit in which a connection portion connected to a first member of a socket is disposed, a movable unit that moves while coupled to a part of the fixed unit, and an elastic portion that imparts an elastic force to the movable unit to move away from the first member.

[0009] The movable unit may be positioned by being linearly moved toward the first member by a pressure of a second member coupled to the first member.

[0010] The fixed unit may include a ratchet portion to which the connection portion is attached and protrudes, and a guide portion to which the movable unit is movably coupled and which protrudes from the ratchet portion in a direction opposite to the connection portion.

[0011] A mounting space through which an optical fiber connected to the connection part passes is formed in the ratchet part between the guide part and the connection part, and an optical fiber passage connected to the mounting space may be formed inside the guide part.

[0012] The ratchet portion may have a seating groove in which the guide portion is separably positioned.

[0013] The fixing unit may further include a binding portion binding the guide portion to the ratchet portion to prevent movement of the guide portion.

[0014] The guide portion may include a guide body protruding from the ratchet portion, and a flange formed on an outer periphery of the guide body and spaced apart from the ratchet portion.

[0015] The optical fiber passage may have a cross-sectional area that increases in a direction toward the ratchet portion based on the flange.

[0016] The movable unit may include a top junction connected to the guide body so as to be linearly movable and hanging on the flange, and an inner junction connected to the top junction, facing the flange, and having an interior penetrating therethrough.

[0017] The movable unit can move linearly between the flange and the ratchet portion, and the elastic portion is located between the flange and the inner junction and can apply an elastic force so that the top junction is applied to the flange.

[0018] The top junction may have a polygonal guide groove through which the guide body passes, and a rail and a rail groove may be formed around the guide body and the guide groove to linearly guide the movement of the top junction.

[0019] The outer periphery of the flange contacts the inner periphery of the top junction, and the outer periphery of the flange and a part of the inner periphery of the top junction are formed as flat surfaces, and the flat surfaces can linearly guide the movement of the top junction.

[0020] An outer periphery of the flange may be in contact with an inner periphery of the top junction, and a rail and a rail groove for linearly guiding a movement of the top junction may be formed on the inner periphery of the top junction and the outer periphery of the flange.

[0021] The movable unit may further include a coating for protecting the optical fiber connected to the connection portion, and a connecting portion for connecting the top junction.

[0022] The connecting portion may include a rivet inserted into the covering from the inner junction, a clamping tube that encases and connects the covering and the rivet, a sealing tube connected to the top junction and encases and protects a connection portion between the rivet and the covering, and a boot connected to the sealing tube and encases the covering.

[0023] The connecting portion may further include a bottom tube that is in close contact with the inner junction and the clamping tube by pressing the sealing tube inside the sealing tube, and a junction sealing member that is disposed between an inner circumference of the sealing tube and an outer circumference of the coating.

[0024] The connection part may further include a bottom coupling part coupling the bottom tube to the inner junction with a gap therebetween.

[0025] The gap is offset by the connection between the sealing tube and the top junction, and the bottom connection portion can be tightly attached to the clamping tube.

[0026] The movable unit may further include a first protective tube protruding from the guide body toward the inner junction, and a second protective tube protruding from the inner junction toward the first protective tube and connected to the first protective tube.

[0027] The coated optical fiber can pass through the inside of the guide body through the inside of the second protective tube and the inside of the first protective tube. Effect of the Invention

[0028] According to the embodiment of the present invention, when the second member and the first member of the socket are coupled together, the movable unit moves along the second member, thereby improving the coupling force of the socket.

[0029] According to the embodiment of the present invention, the inner junction presses the elastic part as the top junction moves, and the second protective tube is gradually inserted into the first protective tube. Therefore, the optical fiber is not exposed from the sliding space, and the optical fiber is not broken when the top junction moves, so that the optical fiber can be safely protected.

[0030] According to an embodiment of the present invention, the guide part is coupled to the ratchet part, and the top junction moves linearly along the guide part. The top junction, which moves linearly into the mounting space of the ratchet part, does not enter the mounting space. Therefore, the optical fiber arrangement efficiency in the mounting space is improved, and damage to the optical fiber is prevented.

[0031] According to an embodiment of the present invention, the bottom tube is coupled to the inner junction via the bottom coupling part with a gap therebetween. Therefore, the bottom tube is coupled to the inner junction regardless of the coupling position of the clamping tube. In addition, the bottom tube is tightly attached to the inner junction by the pressure of the sealing tube, thereby maintaining airtightness. [Brief description of the drawings]

[0032] [Figure 1] 1 is a diagram showing a state in which a waterproof connector according to an embodiment of the present invention is used; [Diagram 2] FIG. 2 is an enlarged view of the waterproof connector of FIG. [Diagram 3] FIG. 3 is an exploded view of FIG. 2. [Figure 4] FIG. 2 is an exploded view of the fixed unit and the movable unit of FIG. [Diagram 5] FIG. 3 is a cross-sectional view taken along line VV in FIG. 2. [Figure 6] FIG. 3 is a cross-sectional view taken along line VI-VI in FIG. [Figure 7] 7 is an enlarged view of the fixed unit and the movable unit in FIG. 6. [Figure 8] 10 is a schematic diagram showing a waterproof connector according to another embodiment of the present invention. [Figure 9] 9 is a cross-sectional view of the waterproof connector of FIG. 8 after being coupled. [Figure 10] FIG. 2 is a schematic diagram showing a coupling structure between an inner junction and a bottom tube. [Figure 11] FIG. 4 is a schematic diagram for explaining a socket coupled to a terminal box. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0033] A waterproof connector according to one embodiment of the present invention will now be described with reference to FIGS.

[0034] FIG. 1 is a diagram showing the use state of a waterproof connector according to one embodiment of the present invention, FIG. 2 is an enlarged view of the waterproof connector of FIG. 1, FIG. 3 is an exploded view of FIG. 2, FIG. 4 is an exploded view of the fixed unit and movable unit of FIG. 1, FIG. 5 is a cross-sectional view taken along line VV of FIG. 2, FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 2, and FIG. 7 is an enlarged view of the fixed unit and movable unit of FIG. 6.

[0035] 1 to 7, the waterproof connector 1 according to the present embodiment includes a fixed unit 20, a movable unit 30, and an elastic portion 40, and when the socket housed therein is connected, the connection force is improved by the movement of the movable unit 30.

[0036] The fixing unit 20 includes a ratchet portion 21 and a guide portion 22, and a connection portion 121 of the optical fiber 12 is attached and led out, and a portion of the fixing unit 20 may be inserted into the first member S1 of the socket S coupled to the terminal box. The fixing unit 20 may further include a bundling portion 23.

[0037] The ratchet portion 21 includes a base 211 and a cover 212 , and protects and fixes the connection portion 121 .

[0038] The base 211 and the cover 212 are detachably coupled to each other, and the base 211 is formed with a mounting space 211a through which the optical fiber 12 passes. A connection part 121 may be disposed at one end of the base 211, which is connected to the optical fiber and connected to the signal conversion module. The connection part 121 may be a known LC type connector of an optical cable. The connection part 121 is not limited to the LC type connector.

[0039] One end of the connecting portion 121 can protrude from the base 211 for connection to the first member S1, and the other end is located inside the base 211. Meanwhile, to prevent the connecting portion 121 from coming off the base 211, an engagement groove and an engagement protrusion are formed between the outer periphery of the connecting portion 121 and the inner periphery of the base 211 to prevent the connecting portion 121 from moving in the longitudinal direction.

[0040] A seating groove 211b connected to the mounting space 211a is formed at the other end of the base 211. The width of the seating groove 211b is smaller than the width of the mounting space 211a. A rail groove 211c is formed in the center of the bottom of the seating groove 211b in the longitudinal direction.

[0041] The cover 212 includes a cover body 212a and a ratchet 212c, and protects the optical fiber in the mounting space 211a and protects the lever of the connection portion 121 from the external environment.

[0042] The cover body 212a is disposed on the open upper surface of the base 211 and is separably coupled to it by an engagement protrusion and an engagement groove. A rail groove 212b is formed in the center of the other side lower surface of the cover body 212a in the longitudinal direction, corresponding to the rail groove 211c of the seating groove 211b.

[0043] The ratchet 212c is bent from the other end to one end of the top surface of the cover body 212a, and covers the lever of the connection part 121. When an external force is applied to the ratchet 212c, the lever of the connection part 121 connected to the first member S1 is pushed, and the connection part 121 can be separated from the first member S1.

[0044] The guide part 22 includes a guide body 221 and a flange 222, and guides the movement of the movable unit 30. The guide part 22 may further include a first protective tube 223. The guide body 221 and the first protective tube 223 are integrally formed, and the flange 222 is located between the guide body 221 and the first protective tube 223.

[0045] One end of the guide body 221 is separably seated in the seating groove 211b, and the other end protrudes from the ratchet portion 21. Rails 221a are formed in the centers of the upper and lower surfaces of one end of the guide body 221 to be inserted into the rail grooves 211c and 212b, respectively. The rails 221a are formed in the longitudinal direction of the guide body 221. The shape of the guide body 221 seen from the front is polygonal. The guide body 221 is formed in a rectangular shape.

[0046] The flange 222 protrudes from the end of the guide body 221 along the outer periphery. The flange 222 is formed in a circular shape, but a part of the upper and lower parts is removed to provide two flat surfaces 222a. The flange 222 faces the ratchet portion 21 at a predetermined distance.

[0047] The first protective tube 223 protrudes from the other end of the guide body 221 in a cylindrical shape.

[0048] An optical fiber passage 22a is formed in the longitudinal direction inside the guide part 22. The optical fiber 12 connected to the connection part 121 can pass through the optical fiber passage 22a. When the guide part 22 is cut on a plane, the optical fiber passage 22a is formed so that the part formed inside the first protection tube 223 has the same cross-sectional area based on the flange 222, and the part formed inside the guide body 221 has a cross-sectional area that gradually increases from the flange 222 toward the ratchet part 21.

[0049] The binding portion 23 includes an engagement member 231, a protruding member 232, and a stopper member 233, and fixes the guide portion 22 to the ratchet portion 21 so that it cannot move.

[0050] The engaging members 231 protrude from the upper portions of both side surfaces of the seating groove 211b toward the guide body 221. The upper surfaces of the engaging members 231 are formed into inclined surfaces.

[0051] The protruding member 232 protrudes outward from a lower portion of one end of the guide body 221. The lower surface of the protruding member 232 is formed into an inclined surface corresponding to the upper surface of the engaging member 231. When one end of the guide body 221 seats in the seating groove 211b, the lower surface of the protruding member 232 and the upper surface of the engaging member 231 come into contact with each other and seat. The upper surface of the protruding member 232 is fixed on the lower surface of the engaging member 231. Therefore, the guide part 22 cannot move up and down by the ratchet part 21.

[0052] The stopper members 233 are formed in the up-down direction on both side surfaces of the seating groove 211b, protrude toward the guide body 221, and are inserted into the inside of the guide body 221. Thus, the stopper grooves 221b into which the stopper members 233 are inserted in the up-down direction are formed on both side surfaces of the guide body 221. The engagement between the stopper members 233 and the stopper grooves 221b prevents the guide part 22 from moving in the longitudinal direction of the ratchet part 21.

[0053] The binding of the binding portion 23 prevents the guide portion 22 from moving with the ratchet portion 21, and furthermore, the contact between the periphery of the seating groove 211b and the outer periphery of the guide body 221 prevents the guide portion 22 from rotating about its axis.

[0054] Although the guide portion 22 and the ratchet portion 21 have been described as being separably connected to each other, depending on the design of the waterproof connector 1, the guide portion 22 and the ratchet portion 21 may be integrally formed and not need to be separated.

[0055] The movable unit 30 includes a top junction 31 and an inner junction 32, and is movably coupled to the fixed unit 20. The movable unit 30 may further include a second protective tube 322 and a connecting portion 33.

[0056] A slide space 311 in which the guide part 22 is located is formed inside the top junction 31. The slide space 311 is open toward the other side of the top junction 31. A guide groove 312 through which the guide body 221 penetrates is formed inside one side of the top junction 31. The periphery of the guide groove 312 is formed in a polygonal shape corresponding to the guide body 221. A rail groove 312a to which the rail 221a is coupled is formed around the guide groove 312. Due to the difference between the diameter of the slide space 311 and the vertical width of the guide groove 312, a flange engagement protrusion 312b is formed on one inner side of the top junction 31.

[0057] The periphery of the slide space 311 is formed to correspond to the outer periphery of the flange 222. Here, around the periphery of the slide space 311, a flat surface 311a corresponding to the flat surface 222a of the flange 222 is formed in the longitudinal direction.

[0058] A gap is formed between the periphery of the guide groove 312 and the outer periphery of the guide body 221, and the movement of the moving top junction 31 is restricted when the flange engagement protrusion 312b engages with the ratchet portion 21 or the flange 222 depending on the direction of movement. Therefore, the top junction 31 can move between the flange 222 and the ratchet portion 21.

[0059] One side of the outer periphery of the top junction 31 is formed with multiple steps so that it can be engaged with the inner periphery of the second member S2 of the socket S. The second member S2 is coupled to the first member S1, so that the top junction 31 can move linearly.

[0060] A thread is formed in the circumferential direction on the outer periphery on the other side of the top junction 31. A part of the outer periphery on the other side of the top junction 31 is formed as a flat surface 313. The thread is omitted from the flat surface 313, and an inner engagement protrusion 314 protrudes therefrom. The upper surface of the inner engagement protrusion 314 is formed as an inclined surface. A plurality of flat surfaces 313 and inner engagement protrusions 314 are formed at intervals along the circumferential direction of the top junction 31.

[0061] The top junction 31 can move linearly without rotating in the circumferential direction due to the polygonal guide groove 312, the guide body 221, and the flat surfaces 222a and 311a that are in contact with each other. Therefore, the linearity of the top junction 31 is improved.

[0062] The inner junction 32 is located on the other side of the top junction 31, with a portion of it inserted into the slide space 311 and facing the flange 222 and the first protective tube 223. A coupling wing 321 protrudes from one side of the inner junction 32 in the direction of the top junction 31 and contacts the flat surface 313. An engagement groove 321a is formed in the coupling wing 321. The coupling wing 321 can ride over the inclined surface of the inner engagement protrusion 314, and the inner engagement protrusion 314 engages with the engagement groove 321a, so that the inner junction 32 maintains a state of being coupled to the other side of the top junction 31. Therefore, the inner junction 32 can move linearly along the top junction 31 which moves linearly.

[0063] The second protective tube 322 protrudes from one side of the inner junction 32 facing the first protective tube 223 toward the flange 222 and is positioned in the slide space 311. The second protective tube 322 is inserted into the optical fiber passage 22a of the first protective tube 223. A gap is formed between the outer periphery of the second protective tube 322 and the inner periphery of the first protective tube 223. When the top junction 31 moves linearly from the flange 222 toward the ratchet portion 21, the second protective tube 322 may be gradually inserted into the inside of the first protective tube 223.

[0064] Meanwhile, a guide passage 32a connected to the optical fiber passage 22a in the longitudinal direction is formed inside the inner junction 32. Therefore, the optical fiber 12 connected to the connection portion 121 can enter the optical fiber passage 22a through the guide passage 32a.

[0065] Since the second protective tube 322 is inserted inside the first protective tube 223, the optical fiber 12 is not exposed to the slide space 311. Therefore, when the top junction 31 moves linearly, problems such as bending of the optical fiber 12 do not occur.

[0066] The elastic portion 40 is located in the slide space 311, and one end of the elastic portion 40 is in contact with the flange 222 while surrounding the outer periphery of the first protective tube 223 with a gap therebetween. The other end of the elastic portion 40 is in contact with the inner junction 32 while surrounding the outer periphery of the second protective tube 322 with a gap therebetween. The elastic force of the elastic portion 40 moves the inner junction 32 in a direction away from the flange 222. The top junction 31 connected to the inner junction 32 also moves due to the elastic force of the elastic portion 40. At this time, the top junction 31 is separated from the ratchet portion 21, and the flange engagement protrusion 312b maintains a state of contact with the flange 222.

[0067] When an external force is applied to the top junction 31 in the direction of the ratchet portion 21, the top junction 31 is separated from the flange 222 and can move forward in the direction of the ratchet portion 21, and the elastic portion 40 can be compressed by the inner junction 32. When the external force pressing the top junction 31 is removed, the top junction 31 moves backward due to the elastic force of the elastic portion 40, and the flange engagement protrusion 312b comes into contact with the flange 222.

[0068] The connecting part 33 includes a rivet 331, a clamping tube 332, a sealing tube 333, and a boot 334, and connects the coating 11 that protects the optical fiber 12 to the top junction 31. The connecting part 33 may further include a bottom tube 335 and a junction sealing member 336. The coating 11 protects the optical fiber 12, aramid fiber, etc. located therein.

[0069] The rivet 331 protrudes from the other side of the inner junction 32, and a guide passage 32a is provided therethrough. The rivet 331 is formed integrally with the inner junction 32 and cannot be separated. A portion of the other side of the rivet 331 is inserted into the inside of the coating 11. One side of the rivet 331 is exposed to the outside of the coating 11. The optical fiber 12 in the coating 11 is connected to the connection part 121 through the guide passage 32a, the optical fiber passage 22a, and the mounting space 211a. In addition, the aramid fiber 13 is exposed to the outside of the coating 11 through a gap between the outer periphery of the rivet 331 and the inner periphery of the coating 11.

[0070] The clamping tube 332 is disposed on the outer periphery of the sheath 11 where the rivet 331 is located. One side of the inside of the clamping tube 332 contacts a part of the rivet 331, and the other side presses the sheath 11 toward the rivet 331. The sheath 11 and the rivet 331 are joined together by the joining force of the clamping tube 332.

[0071] The aramid fibers 13 exposed to the outside of the covering 11 pass between the clamping tube 332 and the covering 11 and are fixed by the clamping tube 332 .

[0072] The sealing tube 333 is penetrated in the longitudinal direction, is disposed outside the clamping tube 332, and surrounds the coating 11 and the clamping tube 332. A screw is formed inside one side of the sealing tube 333, so that the sealing tube 333 is screwed to the other side of the top junction 31. The other side of the sealing tube 333 is formed in multiple steps. A plurality of step portions 333a are formed inside the other side of the sealing tube 333.

[0073] The boot 334 encases the covering 11 and is connected to the other side of the sealing tube 333 by means of a protrusion and a groove. The boot 334 fixes the end of the covering 11 to prevent it from folding.

[0074] The bottom tube 335 is located inside the sealing tube 333 and wraps the outside of the clamping tube 332. The bottom tube 335 can move when the sealing tube 333 and the top junction 31 are not coupled. However, when the sealing tube 333 is coupled to the top junction 31, a step portion 333a formed on the inner circumference of the sealing tube 333 presses the other side of the bottom tube 335, so that one side of the bottom tube 335 comes into contact with the other side of the inner junction 32. Therefore, the bottom tube 335 cannot move inside the sealing tube 333 and remains fixed. The bottom tube 335 wraps the outside of the clamping tube 332 to protect the portion where the rivet 331 and the coating 11 are connected.

[0075] The junction sealing member 336 is located behind the bottom tube 335, and is pressed by the sealing tube 333. The junction sealing member 336 can block the inflow of fluids and the like between the sealing tube 333 and the coating 11.

[0076] Next, the operation of the waterproof connector described above will be described.

[0077] The fixing unit 20 of the waterproof connector 1 is connected to the first member S1 of the socket S connected to the signal conversion module. Here, the connection portion 121 of the optical fiber 12 is connected to the terminal portion of the first member S1. Here, the top junction 31 is separated from the ratchet portion 21 by the elastic force of the elastic portion 40 and is hung on the flange 222.

[0078] When the second member S2 located outside the connecting portion 33 and the top junction 31 is moved toward the first member S1 to couple with the first member S1, the multi-step portion formed on the outer periphery of the top junction 31 engages with the inner surface of the second member S2, allowing the top junction 31 to move together with the second member S2. As the top junction 31 moves, the inner junction 32 presses the elastic portion 40, and the second protective tube 322 is gradually inserted into the first protective tube 223. In this way, when the second member S2 and the first member S1 of the socket are coupled, the movable unit 30 moves together with the second member S2, improving the coupling force of the socket S.

[0079] A waterproof connector according to another embodiment of the present invention shown in Figures 8 to 11 has most of the components of the embodiment described in Figures 1 to 7. Figure 8 is a schematic diagram showing a waterproof connector according to another embodiment of the present invention, Figure 9 is a cross-sectional view of the waterproof connector of Figure 8 after it has been coupled and cut, Figure 10 is a schematic diagram showing the coupling structure between the inner junction and the bottom tube, and Figure 11 is a schematic diagram for explaining a socket coupled to a terminal box.

[0080] However, this embodiment differs in the guide structure of the top junction 31 and the guide portion 22, the connection structure between the top junction 31 and the inner junction 32, and the connection structure between the inner junction 32 and the rivet 331 (see Figs. 8 and 9).

[0081] According to this embodiment, a rail 315 protrudes from the inner periphery of the top junction 31, and a rail groove 222b is formed in the flange 222 to be coupled with the rail 315. The top junction 31 can move in a straight line by the rail groove and rail formed in the guide groove 312 and the guide body 221, and the rail and rail groove formed in the top junction 31 and the flange 222.

[0082] A coupling wing 316 having an engagement groove 316a is provided on the other side of the top junction 31. The coupling wing 316 is arranged along the circumferential direction of the top junction 31.

[0083] A plurality of arrangement grooves 323 into which the coupling wings 316 are inserted are formed at intervals in the circumferential direction on the outer periphery of the inner junction 32. An engagement protrusion 324 that engages with an engagement groove 316a of the coupling wings 316 is protruded from the arrangement groove 323. The coupling wings 316 and the engagement protrusion 324 are coupled together, so that the top junction 31 and the inner junction 32 are separably coupled to each other.

[0084] An accommodating groove 325 is formed inside the other side of the inner junction 32. The periphery of the accommodating groove 325 is formed in a polygonal shape. The periphery of the accommodating groove 325 may also be formed in a circular shape. The rivet 331 is separated from the inner junction 32. The clamping tube 332 that connects the rivet 331 and the coating 11 can be inserted into the accommodating groove 325 and connected thereto. Here, the outer periphery of the clamping tube 332 is formed to be the same as the periphery of the accommodating groove 325.

[0085] The sealing tube 333 coupled to the top junction 31 presses the bottom tube 335 toward the inner junction 32. The bottom tube 335 presses the clamping tube 332, thereby maintaining the rivet 331 in contact with the inner surface of the receiving groove 325. The top junction 31 cannot move due to the pressure of the sealing tube 333.

[0086] The other configurations can be applied as they are to the configurations of the embodiment shown in Figs.

[0087] Yet another embodiment of the present invention has most of the components of the embodiment described with reference to Figures 1 to 7. Referring to Figure 10 of the drawings, the inner junction 32 and the bottom tube 335 are connected to each other with a gap therebetween by a bottom connecting part 337. The gap can be offset by a sealing tube 333 connected to the top junction 31.

[0088] The bottom coupling portion 337 includes coupling wings 337a arranged in the circumferential direction protruding from the inner junction 32 and having coupling grooves 337b formed therein, and coupling protrusions 335a formed on the outer periphery of the bottom tube 335. The portion of the bottom tube 335 where the coupling protrusions 335a are formed is recessed and curved for the coupling wings 337a to seat on.

[0089] The coupling wing 337a is coupled to the bottom coupling part 337 by engaging the coupling groove 337b with the coupling protrusion 335a. Here, the coupling protrusion 335a is coupled to the coupling groove 337b with a gap therebetween. Therefore, the bottom tube 335 can move within a range of movement. The gap makes it easy to adjust the position of the bottom coupling part 337 according to the position of the clamping tube 332. The sealing tube 333 coupled to the top junction 31 presses the bottom tube 335 in the direction of the inner junction 32. The bottom tube 335 is fixed between the inner step part of the sealing tube 333 and the inner junction 32 and cannot move.

[0090] The other configurations can be applied as they are to the configurations of the embodiment shown in Figs.

Claims

1. a fixing unit having a connection portion connected to the first member of the socket; a movable unit that is coupled to a part of the fixed unit and moves; an elastic portion that applies an elastic force to the movable unit so as to move the movable unit away from the first member; Including, The fixed unit is a ratchet portion in which the connection portion is disposed; a guide portion protruding from the ratchet portion in a direction opposite to the connection portion and to which the movable unit is movably coupled; Including, a second member coupled to the first member, the second member being pressed against the first member to move linearly toward the first member and set the position; a mounting space through which an optical fiber passes is formed in the ratchet portion between the guide portion and the connection portion; and an optical fiber passage connected to the mounting space is formed inside the guide portion.

2. The ratchet portion has a seating groove in which the guide portion is separably positioned, 2. The waterproof connector according to claim 1, wherein the fixing unit further includes a binding portion that binds the guide portion to the ratchet portion to prevent movement of the guide portion.

3. The guide portion is A guide body protruding from the ratchet portion; a flange formed on an outer periphery of the guide body and spaced apart from the ratchet portion; Including, 2. The waterproof connector according to claim 1, wherein the optical fiber passage has a cross-sectional area that increases in a direction from the flange toward the ratchet portion.

4. The movable unit includes: a top junction coupled to the guide body so as to be linearly movable and extending over the flange; an inner junction coupled to the top junction, facing the flange, and having an interior penetrating therethrough; Including, 4. The waterproof connector according to claim 3, wherein the movable unit can move linearly between the flange and the ratchet portion, and the elastic portion is located between the flange and the inner junction and applies an elastic force so that the top junction is applied to the flange.

5. 5. The waterproof connector according to claim 4, wherein a polygonal guide groove penetrating the guide body is formed in the top junction, and rails and rail grooves for linearly guiding movement of the top junction are formed around the guide body and the guide groove.

6. The waterproof connector according to claim 5, wherein an outer periphery of the flange contacts an inner periphery of the top junction, and the outer periphery of the flange and a portion of the inner periphery of the top junction are formed into flat surfaces, and the flat surfaces linearly guide the movement of the top junction.

7. 7. The waterproof connector according to claim 6, further comprising a connecting portion for connecting said top junction to a coating for protecting an optical fiber connected to said movable unit and said connection portion.

8. The connecting portion is a rivet inserted into the sheath from the inner junction; a clamping tube that encases and joins the coating and the rivet; a sealing tube connected to the top junction and enclosing and protecting a connection portion between the rivet and the coating; a boot coupled to the sealing tube and encasing the covering; 8. The waterproof connector of claim 7, comprising:

9. The connecting portion is a bottom tube that is in contact with the inner junction and the clamping tube by being pressed by the sealing tube within the sealing tube; a junction sealing member disposed between an inner periphery of the sealing tube and an outer periphery of the coating; The waterproof connector of claim 8 further comprising:

10. The connecting portion further includes a bottom connecting portion that connects the bottom tube to the inner junction with a gap therebetween, 10. The waterproof connector according to claim 9, wherein the gap is offset by the coupling between the sealing tube and the top junction, and the bottom coupling portion is in tight contact with the clamping tube.

11. The movable unit includes: a first protective tube protruding from the guide body toward the inner junction; a second protection tube protruding from the inner junction into the first protection tube and connected to the first protection tube; Further comprising:

9. The waterproof connector according to claim 8, wherein the coated optical fiber passes through an interior of the guide body through an interior of the second protective tube and an interior of the first protective tube.

12. a fixing unit in which a connection portion to be connected to the first member of the socket is disposed; a movable unit that is coupled to a part of the fixed unit and moves; an elastic portion that applies an elastic force to the movable unit so as to move the movable unit away from the first member; Including, The movable unit includes: a top junction connected to and hanging on the fixed unit so as to be linearly movable; an inner junction coupled to the top junction and having an inner portion penetrating therethrough; Including, A waterproof connector, wherein the movable unit can move linearly in a guide body of the fixed unit, the elastic portion applies an elastic force to the top junction so that it is attached to the fixed unit, and the movable unit moves linearly in the direction of the first member and is positioned by the pressure of a second member that is connected to the first member.

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