Optical fiber connector

Abstract

This application relates to an optical fiber connector, comprising a connector body, a front cover, and a tail sleeve. The connector body further includes an optical fiber splicing assembly, a tail cable fixing sleeve snapped onto the rear end of the optical fiber splicing assembly, and a housing fitted over the optical fiber splicing assembly. The rear end of the tail cable fixing sleeve has at least two clamping claws. The front cover is threaded onto the front end of the housing. The tail sleeve is threaded onto the rear end of the housing and fitted over the tail cable fixing sleeve. The inner wall of the tail sleeve has an inclined surface that compresses the at least two clamping claws to clamp the inserted optical cable during forward twisting relative to the housing. Furthermore, a first sealing ring is fitted onto the front outer wall of the housing to form a seal with the front cover, and a second sealing ring is fitted onto the outer wall of the tail cable fixing sleeve to form a seal with the rear end of the housing. A soft sealing rubber sleeve is also embedded at the front end of the tail cable fixing sleeve to form a seal with the optical cable. This optical fiber connector allows for quick insertion and removal while maintaining a stable connection, is waterproof and dustproof, and has strong adaptability.

Description

Technical Field

[0001] This application relates to fiber optic fast connection technology, and more specifically, to a fiber optic connector. Background Technology

[0002] With the large-scale deployment of Fiber to the Home (FTTH) and the rapid development of 5G networks, fiber optic networks require a large number of waterproof connectors suitable for outdoor environments. Traditional fiber optic connectors are mostly designed for indoor use and lack effective waterproofing measures. When used outdoors, moisture and dust can easily cause contamination or even damage to the fiber end face inside the connector, seriously affecting communication quality. Utility Model Content

[0003] The technical problem to be solved by this application is to provide a waterproof quick-connect fiber optic connector, addressing the aforementioned deficiency of existing technologies in the lack of effective waterproofing measures.

[0004] The technical solution adopted by this application to solve its technical problem is as follows: An optical fiber connector is proposed, comprising: a connector body, the connector body further comprising an optical fiber splicing assembly, a pigtail fixing sleeve snapped onto the rear end of the optical fiber splicing assembly, and a housing sleeved outside the optical fiber splicing assembly; the rear end of the pigtail fixing sleeve has at least two opposing clamping claws; a front cover threadedly connected to the front end of the housing; a tail sleeve threadedly connected to the rear end of the housing and sleeved outside the pigtail fixing sleeve; the inner wall of the tail sleeve has an acting inclined surface, which, during the forward twisting of the tail sleeve relative to the housing, squeezes the at least two opposing clamping claws to clamp the inserted optical cable; and, a first sealing ring is fitted onto the front end of the housing to form a seal between the front cover and the front cover, a second sealing ring is fitted onto the outer wall of the pigtail fixing sleeve to form a seal between the rear end of the housing, and a soft sealing rubber sleeve is also embedded at the front end of the pigtail fixing sleeve to form a seal between the inserted optical cable.

[0005] According to one embodiment of the fiber optic connector described in this application, the fiber optic splicing assembly includes a frame and a fiber optic splicing body installed in a mounting cavity open to one side within the frame. The fiber optic splicing body further includes a splice seat, a clamping block, a locking sleeve, a ferrule, and a return spring. The splice seat has a mating slot. The ferrule is fixed to the front end of the splice seat, and the pre-embedded optical fiber of the ferrule is introduced into the mating slot. The clamping block is wedge-shaped and covers the splice seat to close the mating slot. The locking sleeve is sleeved on the splice seat and the clamping block. The return spring abuts between the splice seat and the frame to make the splice seat always have a forward movement tendency.

[0006] According to one embodiment of the optical fiber connector described in this application, the rear part of the mounting cavity within the frame is further provided with a guide groove that is aligned and communicates with the insertion groove on the mating seat.

[0007] In one embodiment of the fiber optic connector according to this application, the insertion slot and the guide slot are V-shaped slots.

[0008] According to one embodiment of the fiber optic connector described in this application, the frame sleeve is further provided with a wire locking structure at the rear end of the guide groove. The wire locking structure includes a semi-open wire locking seat formed at the rear end of the frame sleeve and a wire locking buckle that is rotatably connected to one side of the wire locking seat and engages with the other side of the wire locking seat to close the wire locking seat.

[0009] In one embodiment of the fiber optic connector according to this application, the inner walls of the locking seat and the locking buckle are each provided with a plurality of wire clamping ribs.

[0010] In one embodiment of the fiber optic connector according to this application, the tail cable retaining sleeve is snapped onto the rear end of the locking socket.

[0011] According to one embodiment of the fiber optic connector described in this application, the rear end of the locking seat extends backward on both sides respectively with elastic buckles, and the outer wall of the tail cable fixing sleeve is provided with buckle grooves on both sides for the elastic buckles to engage.

[0012] According to one embodiment of the optical fiber connector described in this application, the rear end of the tail cable fixing sleeve is further provided with an optical cable guide. The optical cable guide includes a first guide ring fixed to the rear end of the tail cable fixing sleeve, a second guide ring located behind the at least two oppositely arranged clamps, and at least two connecting arms connected between the first guide ring and the second guide ring, avoiding the at least two oppositely arranged clamps.

[0013] According to one embodiment of the fiber optic connector described in this application, the fiber optic connector further includes a connector comprising a connecting strip and a first retaining ring and a second retaining ring respectively formed at both ends of the connecting strip, the first retaining ring being fitted onto the front end of the front cover and the second retaining ring being fitted onto the rear end of the housing.

[0014] The fiber optic connector according to this application has the following advantages: The fiber optic connector according to an embodiment of this application consists of a connector body, a front cover threaded to the front end of the outer shell of the connector body, and a tail sleeve threaded to the rear end of the outer shell of the connector body. The fiber optic splice assembly is disposed inside the outer shell. Unscrewing the front cover exposes the pre-embedded ferrule inside the fiber optic splice assembly for insertion into the device. Unscrewing the tail sleeve releases the clamping force on the tail cable fixing sleeve at the rear end of the fiber optic splice assembly, facilitating the insertion and removal of external optical cables. This threaded screw-locking design allows the fiber optic connector to be quickly inserted and removed while maintaining a stable connection. The fiber optic connector according to an embodiment of this application forms a seal between the front end of the outer shell and the front cover through a first sealing ring, and a seal between the rear end of the outer shell and the tail cable fixing sleeve through a second sealing ring. A soft sealing sleeve embedded in the tail cable fixing sleeve forms a seal with the inserted optical cable, giving the entire fiber optic connector a multi-seal structure, excellent waterproof and dustproof performance, and meeting the needs of outdoor environments. The fiber optic connector according to the embodiments of this application features a screw-adjustable optical cable clamping structure achieved by the tail sleeve and the jaws, as well as a soft sealing sleeve, which can accommodate optical cables of different sizes and reduce the variety of items in inventory. Attached Figure Description

[0015] The present application will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is a schematic diagram of the assembly structure of an optical fiber connector according to an embodiment of this application; Figure 2 yes Figure 1 The diagram shows an exploded view of the fiber optic connector. Figure 3 yes Figure 2 The exploded structural diagram of the optical fiber splicing assembly shown. Figure 4 yes Figure 2 The diagram shows the structure of the tail cable fixing component. Figure 5 yes Figure 1 The longitudinal structural cross-sectional view of the fiber optic connector shown. Figure 6 yes Figure 1 The image shows a cross-sectional view of the fiber optic connector.

[0016] Reference numerals: 100 - Fiber optic connector; 10 - Connector body; 11 - Housing; 111 - First external thread; 112 - Second external thread; 113 - First sealing ring; 114 - Second mounting groove; 12 - Fiber optic splice assembly; 121 - Frame; 1211 - Mounting cavity; 1212 - V-shaped guide groove; 1213 - Mounting hole; 1214 - Limiting plate; 1215 - Through hole; 122 - Fiber optic splice body; 1221 - Splice seat; 1222 - Insertion groove; 1223 - Clamping block; 1224 - Locking sleeve; 1225 - Ferrule mounting hole; 1226 - Ferrule; 1227 - Embedded fiber; 1228 - Protective sleeve; 1229 - Return spring; 123 - Wire locking structure; 1231 - Wire locking seat; 1232 - Wire locking buckle; 1233 - Rotary... Shaft; 1234-Elastic buckle hole; 1235-Snap position; 1236-Snap fastening part; 1237-Fit rib; 124-Elastic buckle; 1241-Elastic cantilever; 1242-Protrusion; 13-Tail cable fixing sleeve; 131-Sleeve body; 132-Claw; 1321-Serge tooth; 133-Snap groove; 134-Guide slope; 135-Second sealing ring; 136-Sealing rubber sleeve; 137-Optical cable guide; 1371-First guide ring; 1372-Second guide ring; 1373-Connecting arm; 20-Front cover; 21-First internal thread; 22-First mounting groove; 30-Tail sleeve; 31-Second internal thread; 32-Action slope; 40-Connector; 41-Connecting strap; 42-First retaining ring; 43-Second retaining ring; 50-Optical cable; 51-Bare optical fiber. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. Furthermore, the embodiments and features described herein can be combined with each other unless otherwise specified.

[0018] Figure 1 A schematic diagram of the assembly structure of an optical fiber connector 100 according to an embodiment of this application is shown. Figure 2 An exploded view of the fiber optic connector 100 is shown. Figure 5 A longitudinal cross-sectional view of the fiber optic connector 100 is shown. Figure 6 A cross-sectional view of the fiber optic connector 100 is shown. See also... Figure 1 , Figure 2 Combination Figure 5 , Figure 6As shown, the fiber optic connector 100 mainly consists of a connector body 10, a front cover 20, a tail sleeve 30, and a connector 40. The connector body 10 further includes a housing 11, a fiber optic splicing assembly 12, and a tail cable fixing sleeve 13. The tail cable fixing sleeve 13 is snap-fitted to the rear end of the fiber optic splicing assembly 12. The housing 11 is fitted over the outside of the fiber optic splicing assembly 12. The front cover 20 is threaded to the front end of the housing 11. The tail sleeve 30 is threaded to the rear end of the housing 11 and fitted over the tail cable fixing sleeve 13. The connector 40 includes a connecting strap 41 and a first retaining ring 42 and a second retaining ring 43 formed at both ends of the connecting strap 41. The first retaining ring 42 is fitted over the front end of the front cover 20, and the second retaining ring 43 is fitted over the rear end of the housing 11, ensuring that even if the front cover 20 is unscrewed and removed from the front end of the housing 11, it remains attached to the housing 11 for convenient use.

[0019] Specifically, see Figure 2 Combination Figure 5 As shown, the outer wall of the front end of the outer casing 11 is provided with a first external thread 111, and a first sealing ring 113 is fitted in front of the first external thread 111. The inner wall of the rear end of the front cover 20 is provided with a first internal thread 21. The front cover 20 is threadedly connected to the outer front end of the outer casing 11 through the mating of the first internal thread 21 and the first external thread 111, and a seal is formed between the outer wall of the front end of the outer casing 11 and the front cover 20 through the first sealing ring 113. The front end of the front cover 20 forms an annular first mounting groove 22 for engaging the first retaining ring 42. See also Figure 2 Combination Figure 5 As shown, the outer wall of the rear end of the housing 11 is provided with a second external thread 112, and the inner wall of the front end of the tail sleeve 30 is provided with a second internal thread 31. The tail sleeve 30 is threadedly connected to the outer end of the housing 11 through the mating of the second internal thread 31 and the second external thread 112. Furthermore, the outer wall of the housing 11 also forms an annular second mounting groove 114 in front of the second external thread 112 for engaging the second retaining ring 43. See further details. Figure 2 Combination Figure 5 As shown, a second sealing ring 135 is fitted onto the outer wall of the tail cable fixing sleeve 13, forming a seal between it and the rear end of the outer shell 11. A soft sealing rubber sleeve 136 is embedded in the front end of the tail cable fixing sleeve 13, forming a seal between it and the inserted optical cable 50. See also Figure 2 Combination Figure 6 As shown, the rear end of the tail cable fixing sleeve 13 has two opposing clamps 132. The inner wall of the tail sleeve 30 is provided on the action slope 32. The action slope 32 squeezes the two clamps 132 during the process of the tail sleeve 30 being twisted forward relative to the outer shell 11 so that the two clamps 132 together clamp the inserted optical cable 50.

[0020] According to the above embodiments of this application, the fiber optic connector 100 is designed with a threaded screw-on locking design for the front cover 20 and the tail sleeve 30. Unscrewing the front cover 20 exposes the pre-embedded ferrule 1226 in the fiber optic splice assembly 12 for insertion into the device. Unscrewing the tail sleeve 30 releases the clamps 132 on the tail cable fixing sleeve 13, facilitating the insertion and removal of the external optical cable 50. This threaded screw-on locking design allows the fiber optic connector 100 to be quickly inserted and removed while maintaining a stable connection. Moreover, the fiber optic connector 100 forms a seal between the front end of the outer shell 11 and the front cover 20 through a first sealing ring 113, and a seal between the rear end of the outer shell 11 and the tail cable fixing sleeve 13 through a second sealing ring 135. The tail cable fixing sleeve 13 is fitted with a soft sealing rubber sleeve 136, which forms a seal with the inserted optical cable 50. This gives the entire fiber optic connector 100 a multi-seal structure, effectively preventing moisture and dust from entering the fiber optic connector 100 and ensuring transmission performance. The fiber optic connector 100 has a screw-adjustable optical cable clamping structure achieved by the soft sealing sleeve 136 and the tail sleeve 30 cooperating with the clamp 132. It can accommodate optical cables 50 of different sizes, such as round optical cables Ø3.0mm, round optical cables Ø5.0mm, square optical cables 5.4*30mm, and square optical cables 8.1*4.5mm, thus reducing the variety of inventory.

[0021] According to a specific embodiment of this application, see Figure 2 Combination Figure 3 As shown, the fiber optic splicing assembly 12 includes a frame 121, a fiber optic splicing body 122 installed within the frame 121, a wire-locking structure 123 formed at the rear end of the frame 121, and a resilient snap fastener 124. See details... Figure 3As shown, the frame 121 has a mounting cavity 1211 that opens to one side, and a mounting hole 1213 extending through to the front end of the mounting cavity 1211. A limiting plate 1214 is formed at the rear end of the mounting cavity 1211, and a through hole 1215 is formed on the limiting plate 1214. The fiber optic splice body 122 is inserted into the mounting cavity 1211 through the mounting hole 1213, and includes a splice seat 1221, a clamping block 1223, a locking sleeve 1224, a ferrule 1226, and a return spring 1229. The ferrule 1226 may also be fitted with a protective sleeve 1228. The connector 1221 has a V-shaped insertion slot 1222. The ferrule 1226 is fixed in the ferrule mounting hole 1225 at the front end of the connector 1221, and the pre-embedded optical fiber 1227 of the ferrule 1226 is inserted into the insertion slot 1222 for docking with the bare optical fiber 51 of the externally inserted optical cable 50. The clamping block 1223 is wedge-shaped and covers the connector 1221 to close the insertion slot 1222. The locking slide 1224 is sleeved on the connector 1221 and the clamping block 1223. Moving the locking slide 1224 can make the clamping block 1223 press the pre-embedded optical fiber 1227 and the bare optical fiber 51 docked in the insertion slot 1222. Moving the locking slide 1224 in the opposite direction can release the clamping block 1223, allowing the optical cable 50 to be quickly inserted and removed without tools. The return spring 1229 abuts against the front end of the connector 1221 and the limiting plate 1214, causing the connector 1221 to always have a forward movement tendency, maintaining a stable connection between the pre-embedded optical fiber 1227 and the bare optical fiber 51. See further details. Figure 3 As shown, the frame 121 is provided with a V-shaped guide groove 1212 at the rear of the mounting cavity 1211. The V-shaped guide groove 1212 is aligned and connected with the insertion groove 1222 on the connector 1221 through the through hole 1215 on the limiting plate 1214, so as to guide the bare optical fiber 51 of the optical cable 50 to be inserted into the insertion groove 1222 in the optical fiber connector body 122 and dock with the pre-embedded optical fiber 1227, so as to ensure the precise alignment of the optical fiber end face and minimize the insertion loss.

[0022] See also Figure 3 Combination Figure 6As shown, the wire locking mechanism 123 is located at the rear end of the guide groove 1212 on the frame 121, and includes a wire locking seat 1231 and a wire locking buckle 1232. The wire locking seat 1231 is semi-open at the rear end of the frame 121, with a rotating shaft 1233 on one side and a buckle 1235 on the opposite side. The wire locking buckle 1232 is generally arc-shaped, with one side connected to the rotating shaft 1233 via an elastic buckle hole 1234 for rotational connection, and the opposite side has a protruding buckle part 1236 that engages with the buckle 1235 to close the wire locking seat 1231. Thus, by rotating the wire locking buckle 1232 relative to the wire locking seat 1231, the optical cable 50 can be inserted. After the pre-embedded optical fiber 1227 in the bare optical fiber splicing body 122 of the optical cable 50 is spliced ​​and locked, the locking buckle 1232 is turned back so that the latching part 1236 and the latching position 1235 are engaged, and the optical cable 50 is then surrounded and locked by the locking seat 1231 and the locking buckle 1232. Preferably, the inner walls of the locking seat 1231 and the locking buckle 1232 are provided with a number of pressure ribs 1237 for pressing the optical cable 50.

[0023] See further Figure 3 Combination Figure 6 As shown, the rear end of the locking seat 1231 extends rearward from both sides with elastic clips 124. Each elastic clip 124 includes an elastic cantilever 1241 and a protrusion 1242 formed at the end of the elastic cantilever 1241 that protrudes inward, for securing the tail cable fixing sleeve 13. See details. Figure 4 As shown, the pigtail fixing sleeve 13 includes a sleeve body 131, a soft sealing sleeve 136 embedded in the front end of the sleeve body 131, two clamps 132 disposed at the rear end of the sleeve body 131, and an optical cable guide 137. The outer wall of the sleeve body 131 has two clamping grooves 133 on both sides corresponding to the two elastic clips 124. The front end of the sleeve body 131 forms a guide slope 134 facing the two elastic clips 124. The protrusions 1242 of the elastic clips 124 move past the guide slope 134 and into the clamping grooves 133, thus securing the pigtail fixing sleeve 13 to the rear end of the optical fiber splicing assembly 12. See further details. Figure 4As shown, the optical cable guide 137 includes a first guide ring 1371 fixed to the rear end of the sleeve 131, a second guide ring 1372 located behind two opposing clamps 132, and two connecting arms 1373 connected between the first guide ring 1371 and the second guide ring 1372, bypassing the two clamps 132. The first guide ring 1371 and the second guide ring 1372 provide a guide channel to guide the optical cable 50 through the tail cable fixing sleeve 13 and into the optical fiber splice assembly 12. The opposing inner sides of the two clamps 132 are preferably provided with a plurality of serrations 1321 for clamping the optical cable 50. As mentioned above, the inclined surface 32 of the tail sleeve 30, which is threaded to the rear end of the housing 11, presses the two clamps 132 during the forward twisting of the tail sleeve 30 relative to the housing 11, so that the two clamps 132 can clamp the optical cable 50 together. By adjusting the degree of twisting of the tail sleeve 30, the two clamps 132 can clamp optical cables 50 of different sizes. The soft sealing sleeve 136 can be made of, for example, soft rubber, or it can be adapted to different sizes of optical cable 50 by elastic deformation.

[0024] The operation process of inserting the optical fiber connector 100 into the optical cable 50 according to the above embodiments of this application is as follows: First, the outer sheath of the end of the optical cable 50 is stripped to form a bare optical fiber 51; then, the tail sleeve 30 of the optical fiber connector 100 is unscrewed, and the snap-fit ​​tail cable fixing sleeve 13 and the optical fiber splicing assembly 12 are pulled out from the rear end of the housing 11. The locking buckle 1232 at the rear end of the frame sleeve 121 of the optical fiber splicing assembly 12 is opened, and the optical cable 50 is passed through the tail sleeve 30 and then through the tail cable fixing sleeve 13 into the locking seat 1231, so that the bare optical fiber 51 is inserted into the splicing seat 1221 under the guidance of the V-shaped guide groove 1212. The fiber optic cable 50 is inserted into the insertion slot 1222 and the pre-embedded optical fiber 1227 is connected. Then, the sliding locking sleeve 1224 is slid to make the clamping block 1223 press the pre-embedded optical fiber 1227 and the bare optical fiber 51 in the insertion slot 1222 to lock them together. Then, the locking buckle 1232 is fastened to the locking seat 1231 to press the optical cable 50. Then, the fiber optic splice assembly 12 and the tail cable fixing sleeve 13 with the optical cable 50 inserted are inserted back into the outer shell 11. Then, the tail sleeve 30 is screwed and locked to the rear end of the outer shell 11. The inclined surface 32 of the inner wall of the tail sleeve 30 squeezes the two claws 132 to clamp the optical cable 50 together, thus completing the insertion of the optical cable 50. The fiber optic connector 100 according to the above embodiment of this application can be quickly inserted and removed without tools and can maintain a stable connection. It has excellent waterproof and dustproof performance and strong universal adaptability.

[0025] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fiber optic connector (100), characterized in that, include: The connector body (10) further includes an optical fiber splicing assembly (12), a tail cable fixing sleeve (13) snapped to the rear end of the optical fiber splicing assembly (12), and a housing (11) sleeved on the outside of the optical fiber splicing assembly (12). The rear end of the tail cable fixing sleeve (13) has at least two opposing clamps (132). The front cover (20) is threaded to the front exterior of the outer casing (11); Tail sleeve (30) is threaded to the rear end of the outer shell (11) and sleeved on the outer end of the tail cable fixing sleeve (13). The inner wall of the tail sleeve (30) has an action slope (32). The action slope (32) squeezes the at least two opposing jaws (132) to clamp the inserted optical cable (50) during the forward twisting of the tail sleeve (30) relative to the outer shell (11). Furthermore, a first sealing ring (113) is fitted on the front outer wall of the outer shell (11) to form a seal with the front cover (20), a second sealing ring (135) is fitted on the outer wall of the tail cable fixing sleeve (13) to form a seal with the rear end of the outer shell (11), and a soft sealing rubber sleeve (136) is also embedded in the front end of the tail cable fixing sleeve (13) to form a seal with the inserted optical cable (50).

2. The fiber optic connector (100) according to claim 1, characterized in that, The fiber optic splicing assembly (12) includes a frame (121) and a fiber optic splicing body (122) installed in a mounting cavity (1211) open to one side within the frame (121). The fiber optic splicing body (122) further includes a splice seat (1221), a clamping block (1223), a locking sleeve (1224), a ferrule (1226), and a return spring (1229). A insertion slot (1222) is provided on the splice seat (1221), and the ferrule (1226) is fixed to the splice seat (1221). The front end of the ferrule (1226) and the pre-embedded optical fiber (1227) of the ferrule (1226) are introduced into the insertion slot (1222). The clamping block (1223) is wedge-shaped and covers the connector (1221) to close the insertion slot (1222). The locking sleeve (1224) is sleeved on the connector (1221) and the clamping block (1223). The return spring (1229) abuts between the connector (1221) and the frame (121) so that the connector (1221) always has a forward movement tendency.

3. The fiber optic connector (100) according to claim 2, characterized in that, The rear part of the mounting cavity (1211) inside the frame (121) is also provided with a guide groove (1212) that is aligned and communicates with the insertion groove (1222) on the coupling seat (1221).

4. The fiber optic connector (100) according to claim 3, characterized in that, The insertion slot (1222) and the guide slot (1212) are V-shaped slots.

5. The fiber optic connector (100) according to claim 3, characterized in that, The frame (121) also has a locking structure (123) at the rear end of the guide groove (1212). The locking structure (123) includes a semi-open locking seat (1231) formed at the rear end of the frame (121) and a locking buckle (1232) rotatably connected to one side of the locking seat (1231) and engaged with the other side of the locking seat (1231) to close the locking seat (1231).

6. The fiber optic connector (100) according to claim 5, characterized in that, The inner walls of the locking seat (1231) and the locking buckle (1232) are each provided with a number of pressure ribs (1237).

7. The fiber optic connector (100) according to claim 5, characterized in that, The tail cable fixing sleeve (13) is snapped to the rear end of the locking seat (1231).

8. The fiber optic connector (100) according to claim 7, characterized in that, The rear end of the locking seat (1231) extends backward on both sides to form elastic buckles (124), and the outer wall of the tail cable fixing sleeve (13) is provided with buckle grooves (133) on both sides for the elastic buckles (124) to be fastened.

9. The fiber optic connector (100) according to claim 1 or 7, characterized in that, The rear end of the tail cable fixing sleeve (13) is also provided with an optical cable guide (137). The optical cable guide (137) includes a first guide ring (1371) fixed to the rear end of the tail cable fixing sleeve (13), a second guide ring (1372) located behind the at least two oppositely arranged claws (132), and at least two connecting arms (1373) connected between the first guide ring (1371) and the second guide ring (1372) avoiding the at least two oppositely arranged claws (132).

10. The fiber optic connector (100) according to claim 1, characterized in that, The fiber optic connector (100) further includes a connector (40), which includes a connecting strip (41) and a first retaining ring (42) and a second retaining ring (43) formed at both ends of the connecting strip (41). The first retaining ring (42) is fitted onto the front end of the front cover (20), and the second retaining ring (43) is fitted onto the rear end of the outer shell (11).

Images