Optical fiber connector

Abstract

The present invention discloses an optical fiber connector, comprising a quick connector, a sleeve and a wire clamping assembly, wherein the quick connector comprises a shell and a ferrule, wherein the shell is provided with a connection channel, the ferrule is inserted in the connection channel, the end of the ferrule is exposed outside the shell, the shell is inserted in the sleeve, the end of the ferrule is also exposed outside the sleeve, the wire clamping assembly is used to fix the cable connected to the ferrule, and the wire clamping assembly and the sleeve are detachably connected. Through the arrangement of the quick connector and the wire clamping assembly, assembly can be directly performed on site, first the cable is stripped to expose the optical fiber, then the cable is passed through the wire clamping assembly, the optical fiber is passed into the quick connector and connected to the ferrule, then the assembled wire clamping assembly and the quick connector are inserted into the sleeve, the wire clamping assembly is connected to the sleeve, and thus 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 done according to local conditions with 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 fibers to maximize the coupling of the light energy output by the transmitting optical fiber to the receiving optical fiber. To a certain extent, fiber optic connectors affect the reliability and performance of the optical transmission system. Currently, most fiber optic connectors in use are 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 entry is difficult to determine, in order to allow the optical fiber to enter the home, a longer cable is generally used, which cannot be adapted to local conditions and is costly. If on-site assembly is used, it brings great difficulty in assembly. Various problems are also likely to occur at the fiber optic docking point. 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, the purpose of the present invention is to provide an optical fiber connector that is not only convenient for on-site cable assembly but also low in cost and high in efficiency.

[0004] In order to achieve the above-mentioned purpose, the present invention is designed to provide an optical fiber connector, including a quick connector, a sleeve and a wire clamping assembly, wherein 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 is inserted in the sleeve, the end of the core is also exposed outside the sleeve, the wire clamping assembly is used to fix the cable connected to the core, and the wire clamping assembly is detachably connected to the sleeve.

[0005] Furthermore, the housing is provided with a flip cover at one end away from the insert, the flip cover is provided on the connecting channel, and the flip cover is rotatably connected to the housing.

[0006] Furthermore, ribs are provided on the inner side wall of the flip cover and the inner side wall of the connecting channel corresponding to the flip cover.

[0007] Furthermore, the shell is provided with an observation opening, which is communicated with the connecting channel.

[0008] Furthermore, the wire-holding assembly includes a wire-holding housing, wherein a cavity for accommodating the passage of the cable is provided in the wire-holding housing, and the wire-holding housing is detachably connected to the sleeve.

[0009] Furthermore, the wire holding shell is provided with a plurality of jacks, which are connected to 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 jacks. The wire holding posts can pass through the jacks and extend into the cavity, forming a wire holding space between the wire holding posts located in the cavity.

[0010] Furthermore, the wire clamping housing is provided with an inserting post, and the inner peripheral wall of the sleeve is provided with a plurality of grooves, and the grooves are adapted to the inserting post.

[0011] Furthermore, the optical fiber connector also includes a fixing sleeve, which is arranged outside the wire holding shell. The fixing sleeve can rotate relative to the wire holding shell, and the fixing sleeve is detachably connected to the sleeve.

[0012] Furthermore, a first internal thread is provided on the inner peripheral wall of the outer sleeve element, and a first external thread is provided on the outer peripheral wall of the sleeve away from the ferrule, and the first external thread is adapted to the first internal thread.

[0013] Furthermore, sealing rings are provided between the wire clamping housing and the fixing sleeve, and between the sleeve and the fixing 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, assembly can be carried out directly 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 passed into the quick connector and connected to the ferrule. Then the assembled wire clamping assembly and the quick connector are inserted into the sleeve. The wire clamping assembly is connected to the sleeve, and the assembly of the optical fiber connector and the cable is completed. No specific clamp is required. The assembly is convenient, fast and efficient, and can be done according to local conditions with low cost. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a schematic diagram of the structure of a fiber optic connector assembled with a cable.

[0017] Figure 3 yes Figure 2 Exploded diagram.

[0018] Figure 4 It is an exploded view of the quick connector of the present invention.

[0019] Figure 5 It is a structural schematic diagram of the sleeve in the present invention.

[0020] Figure 6 It is an assembly diagram of the sleeve and the quick connector in the present invention.

[0021] Figure 7It is a structural schematic diagram of the wire clamping assembly in the present invention. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings and examples.

[0023] like Figures 1 to 7 As shown, a fiber optic connector includes a quick connector 1, a sleeve 2 and a wire clamping assembly 3, the quick connector 1 includes a shell 11 and a core 12, a connecting channel 111 is provided in the shell 11, the core 12 is inserted in the connecting channel 111, the connecting channel is preferably a straight channel, a straight channel is a channel whose central axis is a straight line, and the connecting channel passes through the two opposite end surfaces of the shell 11, the core 12 is inserted in the connecting channel, the core 12 generally adopts 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 is inserted in the sleeve 2, and the end of the shell 11 with the end of the core 12 exposed is exposed outside the sleeve 2, so the end of the core 12 is also exposed outside the sleeve 2, the wire clamping assembly 3 is used to fix the cable 9 connected to the core 12, and the wire clamping assembly 3 is detachably connected to the sleeve 2.

[0024] The housing 11 is provided with a flap 13 at one end away from the ferrule 12. The flap 13 is positioned over the connection channel and is rotatably connected to the housing 11. In this embodiment, the flap 13 is rotatably connected to the housing 11 via a pair of rotating shafts 14. The provision of the flap 13 facilitates insertion of the optical fiber extending from the cable into the connection channel and connection with the ferrule 12.

[0025] The inner side wall of the flip cover 13 and the inner side wall of the connecting channel corresponding to the flip cover 13 are both provided with ribs 15 , which can abut against the optical fiber passing through them, thereby achieving a better fixing effect.

[0026] 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 .

[0027] Of course, even if the housing is not provided with a flip cover and an observation opening, the optical fiber can be conveniently inserted into the connection channel and connected to the ferrule.

[0028] A limit ring 21 is provided on the outer peripheral wall of the sleeve 2, and a first external thread 22 is provided on the outer peripheral wall of the sleeve 2 at the end away from the ferrule 12. The outer diameter of the sleeve portion corresponding to the first external thread 22 is smaller than the outer diameter of other parts of the sleeve, thereby forming a step 23 on the outer periphery of the sleeve 2, and the limit ring 21 is away from the first external thread 22. A plurality of grooves 24 are provided on the inner peripheral wall of the sleeve 2 at the end away from the ferrule 12. The grooves 24 are formed by being recessed from the inner peripheral wall of the sleeve 2 away from the center of the sleeve. The shell 11 is inserted into the sleeve 2, and the grooves 24 are arranged around the outer periphery of the shell 11.

[0029] The wire holding assembly 3 includes a wire holding shell 31 and a wire holding clip 32. The wire holding shell 31 is provided with a cavity 313 for accommodating the passage of the cable. A plug post 311 is provided on one end of the wire holding shell 32. The plug post 311 is adapted to the groove 24. The wire holding shell 31 is also provided with a plurality of sockets 312. The sockets 312 are connected to the cavity. The wire holding clip 32 includes a main body 322 and a plurality of wire holding posts 321. The wire holding posts 321 are adapted to the sockets 312. The wire holding posts 321 can pass through the sockets 312 and extend into the cavity. A wire holding space is formed between the wire holding posts 312 located in the cavity. The cable passing through the cavity is clamped in the wire holding space, further strengthening the fixation of the cable.

[0030] When the shell 11 is connected to the wire-holding shell 31, the end face of the shell 11 away from the ferrule abuts against the end face of the wire-holding shell provided with the plug, the connecting channel 111 is connected to the cavity, and the two are coaxially arranged, so that the optical fiber extending from the cable can be inserted into the connecting channel and docked with the ferrule.

[0031] The cable retaining housing 31 is provided with a fixing sleeve 4, which is rotatable relative to the cable retaining housing 31. The inner circumferential wall of the fixing sleeve 4 is provided with a first internal thread, which mates with the first external thread 22. The fixing sleeve 4 is threadedly connected to the sleeve 2, effectively and stably connecting the cable retaining housing 31 to the sleeve 2.

[0032] The wire clamping housing 31 and the sleeve 2 are both provided with a sealing ring 5. The sealing ring on the wire clamping housing 31 is located between the wire clamping housing 31 and the fixing sleeve 4. At least one sealing ring on the sleeve 2 is located between the sleeve and the fixing sleeve, and the sealing ring is provided at the step 23. This arrangement can improve the sealing between the wire clamping assembly, the fixing sleeve and the sleeve, and improve the waterproof and dustproof performance of the optical fiber connector, making the optical fiber connector suitable not only for indoor use but also for outdoor use, with a wider range of applications.

[0033] The optical fiber connector also includes a tail sleeve 6, a connecting sleeve 7, and a connector dust cap 8. The tail sleeve 6 is mounted on the cable clamp housing to limit the fixed sleeve 4 and prevent the fixed sleeve 4 from detaching from the cable clamp housing 31. The connecting sleeve 7 is mounted on the outside of the sleeve 2. One end of the connecting sleeve 7 is also provided with a second external thread 71. The inner peripheral wall of the connecting sleeve 7 is ringed with a positioning protrusion. When the fixing sleeve 4 is screwed onto the sleeve 2, the fixing sleeve 4 partially extends into the connecting sleeve 7 and abuts against the positioning protrusion, limiting the position of the connecting sleeve 7. The connecting sleeve 7 can rotate relative to the sleeve 2, and the end provided with the second external thread abuts against the limit stop ring 21 through a sealing ring. The limit stop ring 21 is also provided with a sealing ring. The inner peripheral wall of the connector dust cap 8 is ringed with a second internal thread, which is compatible with the second external thread.

[0034] When not assembled on site, the ferrule is inserted into the connecting channel, the housing is inserted into the sleeve, and the ferrule exposed outside the sleeve is covered with a protective cap. The wire clamping assembly is connected to the sleeve, the fixing sleeve is screwed to the sleeve, the tail sleeve is put on the wire clamping housing to limit the fixing sleeve, and the connecting sleeve is screwed to the dust cap of the connector. Figure 1 shown.

[0035] When on-site assembly is required, first unscrew the dust cap of the connector, then unplug the tail sleeve, rotate and remove the fixing sleeve, then remove the wire clamping assembly and quick connector in turn, then strip the cable to expose the optical fiber, then pass the cable through the wire clamping housing, open the flip cover, let the optical fiber pass through the connection channel and connect with the ferrule, and observe the connection between the optical fiber and the ferrule through the observation opening. After the optical fiber and the ferrule are connected in place, cover the flip cover, plug in the wire clamping clip, and fix the cable with the wire clamping column, then insert the assembled wire clamping housing and quick connector into the sleeve, and then put in the fixing sleeve, rotate the fixing sleeve to make it screwed with the sleeve until it abuts against the connecting sleeve to fix the wire clamping assembly and the sleeve, and then put in the tail sleeve to limit the fixing sleeve to prevent the fixing sleeve from detaching from the wire clamping housing, so that the optical fiber connector and cable can be quickly assembled on-site, remove the protective cap, such as Figure 2 As shown, the optical fiber connector is then plugged into the optical fiber adapter to complete the docking between the optical fibers. The assembly between the optical fiber 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, a sleeve and a wire clamping assembly. The quick connector comprises a shell and a ferrule. The shell is provided with a connecting channel. The ferrule is inserted into the connecting channel. The end of the ferrule is exposed outside the shell. The shell is inserted into the sleeve. The end of the ferrule is also exposed outside the sleeve. The wire clamping assembly is used to fix the cable connected to the ferrule. The wire clamping assembly and the sleeve are detachably connected. The wire clamping assembly includes a wire clamping housing, wherein a cavity for accommodating the cable to pass through is provided in the wire clamping housing, and the wire clamping housing is detachably connected to the sleeve; The wire clamp housing is provided with a plug post, and the inner peripheral wall of the sleeve is provided with a plurality of grooves, and the grooves are adapted to the plug post; A limit ring is provided on the outer peripheral wall of the sleeve; The optical fiber connector also includes a fixing sleeve, a tail sleeve, a connecting sleeve and a connector dust cap. The fixing sleeve is arranged outside the wire clamping housing, the fixing sleeve can rotate relative to the wire clamping housing, and the fixing sleeve is detachably connected to the sleeve. The inner circumferential wall of the fixing sleeve is provided with a first internal thread, and the outer circumferential wall of the sleeve away from the ferrule is provided with a first external thread, and the first external thread is adapted to the first internal thread; The tail sleeve is arranged on the wire clamping housing to limit the fixing sleeve; The connecting sleeve is sleeved on the outside of the sleeve, and one end of the connecting sleeve is also provided with a second external thread. The inner peripheral wall of the connecting sleeve is provided with a positioning convex ring. When the fixed sleeve is screwed onto the sleeve, the fixed sleeve partially extends into the connecting sleeve and abuts against the positioning convex ring to limit the connecting sleeve. The connecting sleeve can rotate relative to the sleeve, and the end provided with the second external thread abuts against the limit ring through a sealing ring. The inner peripheral wall of the dust cap of the connector is provided with a second internal thread, and the second internal thread is adapted to the second external thread.

2. The optical fiber connector according to claim 1, wherein: The housing is provided with a flip cover at one end away from the insert core. The flip cover is arranged on the connecting channel and is rotatably connected to the housing.

3. The optical fiber connector according to claim 2, wherein: The inner side wall of the flip cover and the inner side wall of the connecting channel corresponding to the flip cover are both provided with convex ribs.

4. The optical fiber connector according to claim 1, wherein: The shell is provided with an observation opening, which is communicated with the connecting channel.

5. The optical fiber connector according to claim 1, wherein: The wire holding shell is provided with a plurality of jacks, 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 jacks. The wire holding posts can pass through the jacks and extend into the cavity, forming a wire holding space between the wire holding posts in the cavity.

6. The optical fiber connector according to claim 1, wherein: Sealing rings are provided between the wire clamping housing and the fixing sleeve, and between the sleeve and the fixing sleeve.

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