Fiber Optic Connectors

Abstract

The present invention discloses an optical fiber connector, including a quick connector and a wire clamping assembly, wherein the quick connector includes a shell and an insert, wherein a connection channel is provided in the shell, wherein the insert is inserted in the connection channel, wherein the end of the insert is exposed outside the shell, wherein the shell and the wire clamping assembly are detachably connected, and wherein the wire clamping assembly is used to fix the cable connected to the insert. Through the arrangement of the quick connector and the wire clamping assembly, the cable assembly can be directly performed on site, wherein the cable is firstly stripped to expose the optical fiber, and then the cable is passed through the wire clamping assembly, wherein the optical fiber is inserted into the quick connector and connected to the insert, and then the wire clamping assembly is connected to the quick connector, thereby completing the assembly of the optical fiber connector and the cable, without the aid of a specific clamp, and wherein the assembly is convenient, quick, and efficient, and can also be adapted to local conditions and at a low cost.

Description

Technical Field

[0001] The invention relates to an optical fiber connector, in particular to an optical fiber connector which is convenient for assembling cables. Background Art

[0002] Fiber optic connectors are devices that make detachable connections between optical fibers. They precisely connect the two end faces of the optical fiber so that the light energy output by the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent. To a certain extent, fiber optic connectors affect the reliability and performance of the optical transmission system. Currently used fiber optic connectors are mostly pre-assembled with cables and fiber optic connectors, and then taken to the construction site to be plugged into the fiber optic adapter. However, this method has certain defects: because the length of the cable for household access is difficult to determine, in order to allow optical fiber to enter the home, longer cables are generally used, which cannot be adapted to local conditions and is costly. If on-site assembly is used, it will bring great assembly difficulties. Various problems are also easily generated at the fiber optic docking point, and specific clamps are required for assembly, resulting in low assembly efficiency and high cost. Summary of the invention

[0003] In order to solve the above-mentioned deficiencies in the prior art, an object of the present invention is to provide an optical fiber connector, which is not only convenient for on-site cable assembly, but also has low cost and high efficiency.

[0004] In order to achieve the above-mentioned purpose, the optical fiber connector designed by the present invention includes a quick connector and a wire clamping assembly, the quick connector includes a shell and a core, a connecting channel is provided in the shell, the core is inserted in the connecting channel, the end of the core is exposed outside the shell, the shell and the wire clamping assembly are detachably connected, and the wire clamping assembly is used to fix the cable connected to the core.

[0005] Furthermore, the wire clamping assembly includes a wire clamping housing, the wire clamping housing is provided with a cavity for accommodating the cable to pass through, and the wire clamping housing is plugged into the housing.

[0006] Furthermore, the wire holding shell is provided with a plurality of jacks, the jacks are connected with the cavity, the wire holding assembly also includes a wire holding clip, the wire holding clip includes a plurality of wire holding posts, the wire holding posts are adapted to the jacks, the wire holding posts can pass through the jacks and extend into the cavity, and a wire holding space is formed between the wire holding posts in the cavity.

[0007] Furthermore, the wire clamp housing is provided with a plurality of plug posts, a receiving space is formed between the plurality of plug posts, and the housing is inserted into the receiving space at one end away from the plug core.

[0008] Furthermore, the optical fiber connector also includes a stopper and a protective cover. The stopper is mounted on one end of the shell away from the wire holding assembly, and the stopper is fixedly connected to the shell. The protective cover is mounted outside the stopper and the wire holding shell, and the protective cover can rotate and move relative to the stopper and the wire holding shell.

[0009] Furthermore, the stopper includes a stop ring, which is sleeved outside the shell and fixedly connected to the shell. A stop block is provided on the outer periphery of the stop ring, and a protrusion is provided on the inner peripheral wall of the protective sleeve. The stop block is located on the rotation trajectory of the protrusion.

[0010] Furthermore, a step is provided on the outer circumference of the wire clamping housing, a spring is provided between the step and the protective sleeve, and the spring sleeve is provided outside the wire clamping housing.

[0011] Furthermore, a sealing ring is provided between the stop ring and the protective sleeve and between the wire clamping housing and the protective sleeve.

[0012] Furthermore, an anti-mistake portion is provided at one end of the stop ring away from the wire clamping assembly.

[0013] Furthermore, at least one protruding column is provided on the inner peripheral wall of the protective sleeve.

[0014] Compared with the prior art, the beneficial effect of the present invention is that through the setting of the quick connector and the wire clamping assembly, the cable assembly can be directly carried out on site. First, the cable is stripped to expose the optical fiber, and then the cable is passed through the wire clamping assembly. The optical fiber is inserted into the quick connector and connected to the ferrule, and then the wire clamping assembly is connected to the quick connector. The assembly of the optical fiber connector and the cable is completed without the aid of a specific clamp. The assembly is convenient and fast, the efficiency is high, and it can also be adapted to local conditions and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the structure after the cables are assembled on site.

[0017] Figure 3 Figure 2 Exploded diagram.

[0018] Figure 4 It is a schematic diagram of the structure of the quick connector and the stop ring after being assembled in the present invention.

[0019] Figure 5 It is an exploded view of the quick connector of the present invention.

[0020] Figure 6 It is a structural schematic diagram of the wire clamping assembly in the present invention.

[0021] Figure 7 It is a schematic structural diagram of the protective cover in the present invention.

[0022] Figure 8 It is a structural schematic diagram of the connector dust cap in the present invention. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figures 1 to 8 As shown, the optical fiber connector provided by the present invention includes a quick connector 1 and a wire clamping assembly 2, the quick connector 1 includes a shell 11 and a core 12, a connecting channel 111 is provided in the shell 11, the connecting channel 111 is preferably a straight channel, a straight channel is a channel whose central axis is a straight line, and the connecting channel 111 passes through the opposite ends of the shell, the core 12 is inserted in the connecting channel 111, the core 12 is inserted in the shell 11, the core 12 is generally a pre-buried core or a straight-through core, the length of the core 12 is smaller than the length of the shell 11, the end of the core 12 is exposed outside the shell 11, the shell 11 and the wire clamping assembly 2 are detachably connected, and the wire clamping assembly 2 is used to fix the cable 9 connected to the core 12.

[0025] In this embodiment, the housing 11 is provided with a flap 13 at one end away from the ferrule 12, the flap 13 is provided on the connection channel 111, the flap 13 is rotatably connected to the housing 11, and the flap 13 is rotatably connected to the housing 11 via a pair of rotating shafts 14. The arrangement of the flap 13 facilitates the optical fiber extending from the cable 9 to pass into the connection channel 111 and connect with the ferrule 12.

[0026] The inner side wall of the flip cover 13 and the inner side wall of the connecting channel 111 corresponding to the flip cover 13 are both provided with convex ribs 15 , and the convex ribs 15 can abut against the optical fiber passing therethrough, so as to achieve a better fixing effect.

[0027] The housing 11 is provided with an observation opening 112 , which is in communication with the connection channel 111 and is used for observing the connection between the optical fiber and the ferrule 12 .

[0028] Of course, the housing 11 is not provided with the flip cover 13 , the observation opening 112 and the convex rib 15 , and only the connection channel 111 is provided, which can also very conveniently realize the connection between the optical fiber and the ferrule.

[0029] The wire holding assembly 2 includes a wire holding housing 21 . A cavity 215 is provided in the wire holding housing 21 for accommodating the passage of a cable. The wire holding housing 21 is plugged into the housing 11 .

[0030] The specific structure of the clamping wire housing 21 is as follows: the clamping wire housing 21 includes a main body 211, a connecting part 212 and a fastening part 213 connected in sequence, the main body 211, the connecting part 212 and the fastening part 213 are coaxially arranged, the cavity 215 passes through the main body 211, the connecting part 212 and the fastening part 213, a clamping ring 22 is sleeved on the outer periphery of the fastening part 213, which can play a fastening role for the cable passing through the cavity 215, the outer diameters of the connecting part 212 and the fastening part 213 are smaller than the outer diameter of the main body 211, and a step 214 is formed between the main body 211 and the connecting part 212, and a plurality of plug holes 2111 are arranged on the outer periphery of the main body 211, and the plug holes 21 11 is communicated with the cavity, and a plurality of plug posts 23 are provided at one end of the main body 211 away from the connecting portion. The plug posts 23 are formed by extending from the end surface of the main body 211 along the axial direction of the main body, and a receiving space 24 is formed between the plurality of plug posts 23. The end of the shell 11 away from the plug core 12 is inserted into the receiving space 24 to achieve a detachable connection between the shell 11 and the wire clamping assembly 2. In this embodiment, an elastic protrusion 231 is provided on the inner side surface of the end of the plug post 23 away from the main body 211, and the elastic protrusion 231 extends into the receiving space 24. The shell 11 is inserted into the receiving space 24, and the elastic protrusion 231 elastically abuts against the outer periphery of the shell 11, so that the shell and the elastic protrusion abut against each other, and the connection effect is more stable.

[0031] After the housing 11 is inserted into the receiving space 24 , the connecting channel 111 is connected to the cavity 215 , and the two are coaxially arranged, so as to facilitate the connection between the optical fiber extending from the cable and the ferrule.

[0032] The wire clamping assembly 2 also includes a wire clamping clip 25, which includes a body 251 and a plurality of wire clamping posts 252. The wire clamping posts 252 are adapted to the insertion holes 2111, and the wire clamping posts 252 can pass through the insertion holes 2111 and extend into the cavity, and a wire clamping space is formed between the wire clamping posts 252 in the cavity. After the wire clamping posts 252 are inserted into the cavity, the body 251 abuts against the outer periphery of the wire clamping housing 21, and the cable is passed through the wire clamping space, so that the cable is limited and fastened, and the fixation of the cable is further strengthened.

[0033] The optical fiber connector also includes a stopper 3 and a protective cover 4. The stopper 3 is sleeved on one end of the shell 11 away from the wire holding assembly 2, and the stopper 3 is fixedly connected to the shell 11. The protective cover 4 is sleeved outside the stopper 3 and the wire holding shell 21, and the protective cover 4 can rotate and move relative to the stopper 3 and the wire holding shell 21.

[0034] The stop member 3 includes a stop ring 31 and a fixing clamp 32. The stop ring 31 is sleeved on the shell 11. An annular groove 311 is provided on the outer periphery of the stop ring 31. When the stop ring 311 is sleeved on the shell 11, part of the shell 11 is located in the annular groove 311. The fixing clamp 32 is clamped in the annular groove 311 to fix the shell 11 and the stop ring 31, so that the stop ring 31 is fixedly connected to the shell 11.

[0035] In this embodiment, an opening 312 is provided at the end of the stop ring 31 away from the wire holding assembly 2, so that the end cross-section of the stop ring 31 away from the wire holding assembly 2 is C-shaped. The opening 312 is an anti-mistake portion of the optical fiber connector, and the width of the opening 312 gradually decreases from away from the wire holding assembly 2 to close to the wire holding assembly.

[0036] In this embodiment, a stopper 313 is provided on the outer periphery of the stop ring 31 , and a protrusion 41 is provided on the inner peripheral wall of the protective sleeve 4 . The stopper 313 is located on the rotation track of the protrusion 41 to limit the rotation of the protective sleeve.

[0037] In this embodiment, a spring 5 is provided between the protective sleeve 4 and the step 214 . The spring 5 is sleeved outside the connecting portion 212 of the wire clamping housing 21 . The end of the protective sleeve away from the stop ring can move axially on the outer periphery of the connecting portion 212 .

[0038] In this embodiment, at least one protruding column 42 is disposed on the inner peripheral wall of the protective sleeve 4 , and the protruding column 42 is farther away from the wire clamping assembly 2 than the protruding block 41 .

[0039] A sealing ring 6 is provided between the stop ring 31 and the protective sleeve 4 and between the wire clamping housing 21 and the protective sleeve 4. In this embodiment, the sealing ring 6 between the stop ring 3 and the protective sleeve 4 is located between the boss 42 and the stopper 313, and a sealing ring 6 is provided between the main body 211 and the protective sleeve 4, thereby forming a better seal at the connection between the wire clamping assembly 2 and the quick connector 1, and having a better waterproof and dustproof effect, so that the optical fiber connector can be used not only indoors, but also outdoors, with a wider range of uses and better market prospects.

[0040] The optical fiber connector also includes a tail sleeve 7 and a connector dust cap 8. The tail sleeve 7 is sleeved on the wire clamping housing 21 to limit the protective sleeve 4 to prevent the protective sleeve 4 from being separated from the wire clamping housing 21. In this embodiment, the tail sleeve 7 is sleeved on the fastening portion 213. At least one slide groove 81 is provided on the outer peripheral wall of the connector dust cap 8. The slide groove 81 is adapted to the protrusion 42. When the protective sleeve 4 is sleeved on the connector dust cap 8, the protrusion 42 is slidably disposed in the slide groove 81.

[0041] In this embodiment, the connector dust cap 8 can be fastened to the protective cover by a belt.

[0042] When not assembled on site, the ferrule 12 is inserted into the connecting channel 111 of the housing 11, the end of the ferrule 23 exposed outside the housing 11 is covered with a protective cap, the wire clamping assembly 2 is connected to the housing 11, the stop ring 31 is sleeved outside the housing 11, the protective sleeve 4 is sleeved outside the stop ring 31 and the wire clamping housing 21, the tail sleeve 7 is sleeved outside the fastening portion 213, the protective sleeve 4 is connected to the connector dust cap 8, and the connector dust cap 8 provides dust protection for the ferrule 12, such as Figure 1 shown.

[0043] When on-site assembly is required, first unscrew the connector dust cap 8, then unplug the tail sleeve 7, take out the protective sleeve 4, then remove the wire clamping assembly 2, then strip the cable 9 to expose the optical fiber, then pass the cable 9 through the wire clamping housing 21, open the flip cover 13, let the optical fiber pass through the connecting channel 111 and connect with the ferrule 12, and observe the connection between the optical fiber and the ferrule through the observation opening 111. After the optical fiber and the ferrule are connected in place, cover the flip cover 13, and insert the wire clamping clip 25 and the wire clamping column 252 to fix the cable, set a clamping ring 22 on the outer periphery of the fastening part 213, and then put on the protective sleeve 4 and the tail sleeve 7 in turn, that is, complete the on-site assembly of the optical fiber connector and the cable, remove the protective cap, as shown in FIG. Figure 2 As shown, the fiber optic connector is then plugged into the fiber optic adapter to complete the docking between the optical fibers. The assembly between the fiber optic connector and the cable does not require the aid of a specific clamp. The use of cables according to local conditions is conducive to controlling the length of the cable, with low cost and high efficiency.

Claims

1. An optical fiber connector, characterized in that: The quick connector comprises a quick connector and a wire clamping assembly, wherein the quick connector comprises a housing and a plug core, wherein a connection channel is arranged in the housing, the plug core is inserted in the connection channel, and an end of the plug core is exposed outside the housing, the housing and the wire clamping assembly are detachably connected, and the wire clamping assembly is used to fix the cable connected to the plug core; The wire clamping assembly comprises a wire clamping housing, wherein a cavity for accommodating the wire to pass through is provided in the wire clamping housing, and the wire clamping housing is plugged into the housing; The cable clamp housing comprises a main body, a connecting part and a fastening part which are connected in sequence. The main body, the connecting part and the fastening part are coaxially arranged. The cavity passes through the main body, the connecting part and the fastening part. A clamp ring is sleeved on the outer periphery of the fastening part to fasten the cable passing through the cavity. A plurality of plug posts are provided at one end of the main body away from the connecting part, and the plug posts are extended from the end face of the main body along the axial direction of the main body, and a receiving space is formed between the plurality of plug posts. An elastic protrusion is provided on the inner side surface of one end of the plug post away from the main body, and the elastic protrusion extends into the receiving space. The shell is inserted into the receiving space at one end away from the plug core, and the elastic protrusion elastically abuts against the outer periphery of the shell, so that the shell abuts against the elastic protrusion, and the connecting channel is coaxially connected with the cavity.

2. The optical fiber connector according to claim 1, characterized in that: The wire holding shell is provided with a plurality of insertion holes, which are communicated with the cavity. The wire holding assembly also includes a wire holding clip, which includes a plurality of wire holding posts, which are adapted to the insertion holes. The wire holding posts can pass through the insertion holes and extend into the cavity, and a wire holding space is formed between the wire holding posts in the cavity.

3. The optical fiber connector according to claim 2, characterized in that: The optical fiber connector also includes a stopper and a protective cover. The stopper is mounted on an end of the shell away from the wire holding assembly, and the stopper is fixedly connected to the shell. The protective cover is mounted outside the stopper and the wire holding shell, and the protective cover can rotate and move relative to the stopper and the wire holding shell.

4. The optical fiber connector according to claim 3, characterized in that: The stopper comprises a stop ring, which is sleeved outside the shell and fixedly connected to the shell. A stopper is arranged on the outer periphery of the stopper ring, and a protrusion is arranged on the inner peripheral wall of the protective sleeve. The stopper is located on the rotation track of the protrusion.

5. The optical fiber connector according to claim 3, characterized in that: A step is arranged on the outer circumference of the wire clamping housing, a spring is arranged between the step and the protective sleeve, and the spring sleeve is arranged outside the wire clamping housing.

6. The optical fiber connector according to claim 4, characterized in that: A sealing ring is provided between the stop ring and the protective sleeve and between the wire clamping housing and the protective sleeve.

7. The optical fiber connector according to claim 4, characterized in that: An anti-fouling portion is provided on one end of the stop ring away from the wire clamping assembly.

8. The optical fiber connector according to claim 3, characterized in that: At least one protruding column is arranged on the inner peripheral wall of the protective sleeve.

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