Optical cable splitter

Abstract

The utility model discloses an optical cable splitter, and relates to the technical field of optical cable connection, the optical cable splitter comprises an outer frame, a tail sleeve assembly, a branching assembly and at least two branch sleeves, a wire passing channel penetrating through the outer frame is formed in the outer frame, and two ends of the wire passing channel are respectively provided with a first opening and a second opening; a wire inlet hole is formed in the tail sleeve assembly, the tail sleeve assembly is connected to the periphery of the first opening, and the wire inlet hole is communicated with the first opening; at least two branching holes are formed in the branching assembly, the branching assembly covers the second opening and is connected with the periphery of the second opening, and the second opening is communicated with the branching holes; and each branch sleeve is correspondingly communicated with one branching hole and is connected with the branching assembly. The optical fiber penetrates into the tail sleeve through the wire inlet hole and sequentially penetrates through the tail sleeve assembly, the outer frame, the branching assembly and the branch sleeve, the outer frame and the branch sleeve protect the stripped optical fiber, the branching assembly and the branch sleeve can comb the optical fiber, the damage risk of the optical fiber is reduced, and the convenience of combing the optical fiber is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of optical cable connection, especially relates to an optical cable brancher. BACKGROUND

[0002] Optical fiber communication technology is a kind of high-speed, stable, reliable communication mode, and is widely used in communication network.Optical fiber is usually composed of core and cladding, the core is responsible for transmitting optical signal, and the cladding ensures that optical signal reflects in the core without leakage.Optical cable is a cable structure composed of multiple optical fibers, reinforcing elements (such as steel wire or aramid fiber) and protective layer (such as sheath).

[0003] In the traditional technology, when the outdoor optical cable is connected to the indoor, the main way is fusion, which needs to strip the protective layer of the optical cable to expose the optical fiber and fuse it with the indoor optical fiber.This fusion method requires very professional equipment and technical personnel, which increases the cost and difficulty of construction.Secondly, the efficiency of optical cable fusion is low, especially in the fusion of large-core optical cable, which requires a lot of time and manpower.Finally, the maintenance of optical cable fusion is difficult, and once the optical fiber cable fails, professional personnel are needed for detection and repair, which increases the maintenance cost and time.

[0004] Therefore, in the related technology, the pre-terminated way is used to realize the connection of outdoor optical cable to indoor, that is, the protective layer of optical cable is stripped in advance and the optical fiber connector is connected at the end of optical fiber, and the optical fiber adapter is set in the indoor, and the outdoor optical cable is connected to the indoor by inserting the optical fiber connector into the optical fiber adapter.But this way, the stripped optical fiber lacks protection and is easy to be damaged, and the stripped optical fiber is easy to entangle each other, which leads to disorder and is not easy to comb. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide an optical cable brancher, which can protect the pre-terminated optical cable, reduce the risk of damage to the optical fiber and improve the convenience of combing the optical fiber.

[0006] To achieve the above purpose, the utility model provides an optical cable brancher, which comprises an outer frame, a tail sleeve assembly, a wire distribution assembly and at least two branch sleeve pipes, the outer frame is formed with a wire passing channel penetrating through the outer frame, and the wire passing channel is formed with a first opening and a second opening at both ends respectively; the tail sleeve assembly is formed with a wire inlet hole, the tail sleeve assembly is connected to the periphery of the first opening, and the wire inlet hole is communicated with the first opening; the wire distribution assembly is provided with at least two wire distribution holes, the wire distribution assembly covers the second opening and is connected with the periphery of the second opening, and the second opening is communicated with the wire distribution hole; each branch sleeve pipe is communicated with a wire distribution hole and connected with the wire distribution assembly.

[0007] In an embodiment, the wire distribution assembly is provided with a plurality of wire distribution holes, and the wire distribution assembly has a central axis, and the plurality of wire distribution holes are distributed in a ring shape around the central axis of the wire distribution assembly.

[0008] In an embodiment, the branch sleeve includes a first pipe segment, a connecting pipe segment, and a second pipe segment connected in sequence, and the first pipe segment is connected with the periphery of the wire distribution hole; the first pipe segment and the second pipe segment are arranged parallel to the central axis of the wire distribution assembly, and the connecting pipe segment is arranged gradually away from the central axis of the wire distribution assembly in the direction from the first pipe segment to the second pipe segment.

[0009] In an embodiment, the wire distribution assembly includes a wire distribution cover and a second fixing sleeve, the wire distribution cover is provided with at least two wire distribution holes, and the outer wall of the wire distribution cover is provided with a second boss extending along the circumference of the wire distribution cover; the wire distribution cover covers and extends into the second opening, and the second boss is in abutment with the outer periphery of the second opening; the second fixing sleeve is sleeved outside the wire distribution cover and detachably connected with the outer frame, and the second boss is limited between the second fixing sleeve and the outer periphery of the second opening.

[0010] In an embodiment, the outer periphery of the second opening is formed with a second rotation-stopping boss, and the second boss is formed with a second rotation-stopping groove, and the rotation-stopping boss is in clamping connection with the inner wall of the rotation-stopping groove.

[0011] In an embodiment, the wire distribution assembly further includes a second sealing member, the outer wall of the wire distribution cover is formed with a second sealing groove extending along the circumference of the wire distribution cover, and the second sealing member is arranged in the second sealing groove and in sealing connection with the inner wall of the wire passage.

[0012] In an embodiment, the tail sleeve assembly includes a wire passing sleeve and a first fixing sleeve, and the wire passing sleeve is formed with the wire inlet hole; the outer wall of the wire passing sleeve is formed with a first boss extending along the circumference of the wire passing sleeve, and the inner wall of the wire inlet hole is formed with a convex rib extending along the circumference of the wire inlet hole; the wire passing sleeve is sleeved in the wire inlet hole, and the first boss is in abutment with the convex rib on the side facing the wire passage; the first fixing sleeve is detachably connected with the outer wall of the wire passing sleeve, and the convex rib is limited between the first boss and the first fixing sleeve.

[0013] In an embodiment, the outer wall of the wire passing sleeve is further formed with a first rotation-stopping boss, and the convex rib is formed with a first rotation-stopping groove, and the first rotation-stopping boss is in clamping connection with the inner wall of the first rotation-stopping groove.

[0014] In an embodiment, the tail sleeve assembly further comprises a wire holder, the wire holder comprising a movable clamp and a stationary clamp; the stationary clamp is arranged in the wire passing channel and connected with the wire passing sleeve; the movable clamp is detachably connected with the stationary clamp, and a clamping space is formed between the movable clamp and the stationary clamp.

[0015] In an embodiment, the tail sleeve assembly further comprises a first sealing member, the first boss is provided with a first sealing groove extending along the circumference of the wire passing sleeve, and the first sealing member is arranged in the first sealing groove and sealingly connected with the inner wall of the wire passing channel.

[0016] The optical cable branching device provided by the utility model comprises an outer frame, a tail sleeve assembly, a wire branching assembly and at least two branch sleeve pipes, the outer frame is internally formed with a wire passing channel penetrating through the outer frame, and the wire passing channel is formed with a first opening and a second opening at two ends respectively; the tail sleeve assembly is formed with a wire inlet hole, the tail sleeve assembly is connected to the periphery of the first opening, and the wire inlet hole is communicated with the first opening; the wire branching assembly is provided with at least two wire branching holes, the wire branching assembly covers the second opening and is connected with the periphery of the second opening, and the second opening is communicated with the wire branching holes; each branch sleeve pipe is communicated with a wire branching hole and connected with the wire branching assembly. When the optical fiber is preterminated, the optical fiber is passed into the tail sleeve through the wire inlet hole and sequentially passes through the tail sleeve assembly, the outer frame, the wire branching assembly and the branch sleeve pipe, the tail sleeve assembly fixes the optical cable and the outer frame, a plurality of optical fibers in the optical cable can be divided into at least two strands and passed through the wire branching holes on the wire branching assembly, and then the optical fibers can be connected with optical fiber connectors at the end portions of the optical fibers after passing through the branch sleeve pipes, so that the outer frame and the branch sleeve pipes protect the stripped optical fibers, the wire branching assembly and the branch sleeve pipes can comb the optical fibers, and the beneficial effects of reducing the damage risk of the optical fibers and improving the convenience of combing the optical fibers are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structures shown in these drawings without creating labor.

[0018] Figure 1 The structure schematic diagram of the optical cable branching device provided by the utility model is shown in the embodiment.

[0019] Figure 2 The front view of the optical cable branching device is shown in the embodiment. Figure 1 The front view of the optical cable branching device is shown in the embodiment.

[0020] Figure 3 The sectional view along the line A-A' of the optical cable branching device is shown in the embodiment. Figure 2 The sectional view along the line A-A' of the optical cable branching device is shown in the embodiment.

[0021] Figure 4 For Figure 3 Structure diagram of the optical cable brancher from another perspective;

[0022] Figure 5 For Figure 1 Explosive diagram of part structure in the optical cable brancher;

[0023] Figure 6 For Figure 1 Structure diagram of part structure of the optical cable brancher after hiding.

[0024] Brief Description of the Drawings:

[0025] 1000, optical cable brancher;

[0026] 1, outer frame; 1a, wire passage; 1b, first opening; 1c, second opening; 11, convex rib; 11a, first rotation stopping groove; 12, second rotation stopping convex;

[0027] 2, tail sleeve assembly; 2a, wire inlet hole; 21, wire sleeve; 211, first convex; 211a, first sealing groove; 212, first rotation stopping convex; 22, first fixing sleeve; 23, wire fixing device; 23a, clamping space; 231, moving clamping seat; 232, static clamping seat; 24, first sealing element;

[0028] 3, wire distribution assembly; 3a, wire distribution hole; 3B, center shaft; 31, wire distribution cover; 31a, second sealing groove; 311, second convex; 311a, second rotation stopping groove; 32, second fixing sleeve; 33, second sealing element;

[0029] 4, branch sleeve; 41, first pipe section; 42, connecting pipe section; 43, second pipe section.

[0030] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0032] It should be noted that if the embodiments of the utility model have directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture, if the specific posture changes, then the directionality indication also changes accordingly.

[0033] In addition, if the embodiments of the utility model have the description of "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appears throughout the text, which means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary technical personnel in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0034] The utility model provides a kind of optical cable brancher 1000.

[0035] Please refer to Figure 1 、 Figure 3 And Figure 5 In an embodiment of the utility model, the utility model provides optical cable brancher 1000 including outer frame 1, tail cover assembly 2, wire distribution assembly 3 and at least two branch sleeve 4, the through line passage 1a that is formed in outer frame 1 is formed with the through line passage 1a of outer frame 1, the two ends of through line passage 1a are formed first opening 1b and second opening 1c respectively;Tail cover assembly 2 is formed with wire inlet hole 2a, tail cover assembly 2 is connected to the periphery of first opening 1b, and wire inlet hole 2a is communicated with first opening 1b;Wire distribution assembly 3 is equipped with at least two wire distribution holes 3a, wire distribution assembly 3 is covered in second opening 1c and is connected with the periphery of second opening 1c, and second opening 1c is communicated with wire distribution hole 3a;Each branch sleeve 4 is communicated with a wire distribution hole 3a and is connected with wire distribution assembly 3.

[0036] In the embodiment, the optical cable brancher 1000 comprises an outer frame 1, a tail sleeve assembly 2, a branch assembly 3 and at least two branch sleeves 4, wherein the outer frame 1 is a cylindrical structure, and the outer frame 1 is used to protect the stripped optical fibers in the optical cable. The outer frame 1 is provided with a wire passage 1a formed therein, and the outer frame 1 is open at both ends, i.e., the outer frame 1 is provided with a first opening 1b and a second opening 1c at both ends respectively, and the first opening 1b, the wire passage 1a and the second opening 1c are sequentially communicated. The tail sleeve assembly 2 is connected with the periphery of the first opening 1b, and the tail sleeve assembly 2 is provided in a cylindrical shape, and the tail sleeve assembly 2 is provided with a wire inlet hole 2a formed therein for the optical cable to pass in, and the size of the wire inlet hole 2a is slightly larger than the outer diameter of the optical cable, so as to prevent liquid or dust from entering the optical cable brancher 1000 while ensuring that the optical cable can pass in. The branch assembly 3 is connected with the periphery of the second opening 1c and covers the second opening 1c, and the branch assembly 3 is provided with at least two branch holes 3a arranged at intervals, and when the optical cable brancher 1000 is assembled with the optical cable, the optical fibers are divided into at least two strands, and each strand of optical fibers passes through a branch hole 3a, and the branch hole 3a can also bundle each strand of optical fibers to prevent the optical fibers from being scattered. The branch assembly 3 realizes the branching of the optical cable, and each branch of the optical cable can perform different signal transmission work, such as data, voice and video, so as to support multiple services to be performed simultaneously. In addition, when a branch fails, the failed branch can be quickly isolated and checked. The optical cable brancher 1000 further comprises a plurality of branch sleeves 4, and the branch sleeves 4 are used for the optical fibers to pass in, and one end of the branch sleeve 4 is connected with the branch assembly 3 and communicated with the branch hole 3a. Optionally, the branch sleeve 4 and the branch assembly 3 can be provided in an integral molding structure; preferably, the branch sleeve 4 and the branch assembly 3 can be detachably connected, for example, the branch sleeve 4 is inserted with the inner wall of the branch hole 3a, and at this time, the branch sleeve 4 and the inner wall of the branch hole 3a can be provided with interference fit or gap fit, so as to ensure that the branch sleeve 4 is not easily detached when inserted into the branch hole 3a.

[0037] The optical cable brancher 1000 of the embodiment is used when the optical cable is assembled, the protective layer of the optical cable is first stripped to expose part of the optical fibers in the optical cable, and then the optical cable is inserted into the tail sleeve assembly 2 from the wire inlet hole 2a, the tail sleeve assembly 2 fixes the protective layer of the optical cable which is not stripped and is connected with the outer frame 1, so as to realize the connection and fixation between the optical cable brancher 1000 and the optical cable, and the stripped optical fibers pass through the outer frame 1, the branch assembly 3 and the branch sleeve 4 in sequence, and then an optical fiber connector is installed at the end of the optical fiber. In this way, the optical cable is connected into the outer frame 1 through the tail sleeve assembly 2, the outer frame 1 and the branch sleeve 4 protect the stripped optical fibers, the branch assembly 3 and the branch sleeve 4 can comb the optical fibers, and the branch sleeve 4 isolates the optical fibers of each branch to prevent the optical fibers of each branch from being entangled with each other to cause disorder, thereby reducing the risk of damage to the optical fibers and improving the convenience of combing the optical fibers.

[0038] Further, please refer toFigure 6 In an embodiment of the present application, the distribution assembly 3 is provided with a plurality of distribution holes 3a, and the distribution assembly 3 has a central axis 3B, and the plurality of distribution holes 3a are distributed in a ring shape around the central axis 3B of the distribution assembly 3.

[0039] In the embodiment, the plurality of distribution holes 3a are distributed in a ring shape around the central axis 3B of the distribution assembly 3, and the ring shape makes each distribution hole 3a symmetric relative to the central axis 3B, and when the optical cable brancher 1000 bears external tension or torsion force, the load can be uniformly transmitted to the distribution assembly 3 through the inner wall of the distribution hole 3a. Compared with the matrix layout, the ring distribution effectively reduces the risk of material fatigue. The ring distribution can keep the distance between the distribution holes 3a constant, avoiding the problem of uneven bending radius of the optical fiber caused by the difference in axial / radial distance in the matrix layout. Moreover, the optical fibers drawn from the distribution holes 3a are equidistant, and the branch optical fibers in the inner ring of the rectangular arrangement are easily blocked by the branch optical fibers in the outer ring, which causes inconvenience in combing. The ring arrangement avoids the blocking between the branch optical fibers, and improves the convenience of combing the optical fibers.

[0040] Further, please refer to Figures 1 to 3 In an embodiment of the present application, the branch sleeve 4 comprises a first pipe segment 41, a connecting pipe segment 42 and a second pipe segment 43 connected in sequence, and the first pipe segment 41 is connected with the periphery of the distribution hole 3a; the first pipe segment 41 and the second pipe segment 43 are arranged parallel to the central axis 3B of the distribution assembly 3, and the connecting pipe segment 42 is arranged gradually away from the central axis 3B of the distribution assembly 3 along the direction from the first pipe segment 41 to the second pipe segment 43.

[0041] In the embodiment, the branch sleeve 4 is used for protecting the branch optical fibers drawn out of the outer frame 1, and the branch sleeve 4 comprises a first pipe section 41, a connecting pipe section 42 and a second pipe section 43, which are integrally formed. The first pipe section 41 is connected with the peripheral edge of the branching hole 3a, and optionally, the first pipe section 41 is integrally formed with the branching assembly 3, and preferably, the first pipe section 41 is inserted with the inner wall of the branching hole 3a, and the outer wall of the first pipe section 41 can be provided with an interference fit or a clearance fit with the inner wall of the branching hole 3a, so as to ensure that the branch sleeve 4 cannot easily fall off from the branching hole 3a. The first pipe section 41 is parallel to the central axis 3B of the branching assembly 3, which ensures that the optical fibers remain in a straight extension state when drawn out of the branching hole 3a, and avoids excessive bending of the optical fibers due to an angle mutation at the outlet of the branching hole 3a. The connecting pipe section 42 gradually deviates from the central axis 3B in a involute manner, so that the plurality of branch sleeves 4 are arranged in a divergent manner in space, which effectively increases the distance between adjacent sleeves and prevents the multiple branch optical fibers from being entangled with each other at the outlet area. The second pipe section 43 returns to a direction parallel to the central axis 3B, thereby providing a stable axial outlet channel for the optical fiber connector, ensuring that the optical fiber end is kept in a straight alignment when connected, and improving the convenience of combing. The three-section branch sleeve 4 structure of the embodiment realizes physical protection in the multiple branch optical fiber scenario through precise control of the geometric direction of the straight line involute straight line, detachable mechanical connection of the branching cover 31, the second fixing sleeve 32 and the annular sealing layout.

[0042] Further, please refer to Figures 3 to 5 In an embodiment of the utility model, the branching assembly 3 comprises a branching cover 31 and a second fixing sleeve 32, the branching cover 31 is provided with at least two branching holes 3a, and the outer wall of the branching cover 31 is provided with a second boss 311 extending along the circumferential direction of the branching cover 31; the branching cover 31 covers the second opening 1c and extends into the second opening 1c, and the second boss 311 abuts against the outer peripheral edge of the second opening 1c; the second fixing sleeve 32 is sleeved on the branching cover 31 and detachably connected with the outer frame 1, and the second boss 311 is limited between the second fixing sleeve 32 and the outer peripheral edge of the second opening 1c.

[0043] In the embodiment, the branching assembly 3 comprises a branching cover 31 and a second fixing sleeve 32, the branching cover 31 is in a cylindrical structure, one end of the cylindrical structure is formed with a cover plate to cover one side opening of the cylindrical structure, at least two branching holes 3a are formed on the cover plate, an outer wall of the branching cover 31 is provided with a second boss 311 extending along a circumferential direction of the branching cover 31, the cylindrical structure part extends into the second opening 1c and is inserted with an inner wall of the second opening 1c, the second boss 311 is larger than the second opening 1c in size, a side wall of the second boss 311 abuts against an outer periphery of the second opening 1c, thus, the branching cover 31 is covered on the second opening 1c, a plurality of branching covers 31 can be provided, each branching cover 31 is provided with a branching hole 3a in a distribution mode, thus, the branching cover 31 can be selected according to different optical fiber branching requirements, and the application range of the optical cable branching device 1000 is improved.

[0044] The second fixing sleeve 32 is sleeved on the outer wall of the branching cover 31 and is detachably connected with the outer frame 1, the second boss 311 is limited between the second fixing sleeve 32 and the outer periphery of the second opening 1c, that is, the second fixing sleeve 32 realizes the connection between the branching cover 31 and the outer frame 1, optionally, the second fixing sleeve 32 is sleeved on the outer wall of the outer frame 1, the outer wall of the outer frame 1 can be provided with elastic clamping claws, the inner wall of the second fixing sleeve 32 can be provided with clamping grooves matched with the elastic clamping claws, when the second fixing sleeve 32 is close to the outer frame 1, the inner wall of the second fixing sleeve 32 presses the elastic clamping claws until the elastic clamping claws enter the clamping grooves, the elastic clamping claws rebound and limit the second fixing sleeve 32, preventing the second fixing sleeve 32 from moving away from the outer wall of the outer frame 1 in the opposite direction, at this time, the branching cover 31 is limited between the outer frame 1 and the second fixing sleeve 32, this elastic clamping claw setting mode can realize the quick assembly of the second fixing sleeve 32 and the outer frame 1, preferably, the outer wall of the outer frame 1 is provided with external threads, the inner wall of the second fixing sleeve 32 is provided with internal threads matched with the external threads, that is, the second fixing sleeve 32 is screwed with the outer frame 1, by tightening the second fixing sleeve 32, the branching cover 31 can be clamped between the second fixing sleeve 32 and the outer frame 1, at this time, the outer wall of the second fixing sleeve 32 is provided with a plurality of parallel wall surfaces for clamping by a wrench or the like, this screwing mode can be adjusted in tightness, after long-term use and loosening, the second fixing sleeve 32 can be tightened again for reuse without replacing parts, and the service life of the optical cable branching device is improved. And the screwing can provide greater extrusion force, facilitating the realization of the air tightness between the threading sleeve 21 and the outer frame 1.

[0045] Further, please refer to Figure 5 and Figure 6 In an embodiment of the utility model, the outer periphery of the second opening 1c is formed with a second rotation stopping boss 12, the second boss 311 is formed with a second rotation stopping groove 311a, the rotation stopping boss and the inner wall of the rotation stopping groove are clamped.

[0046] In the embodiment, considering that the optical cable may be rotated in the actual working condition of entering the room, the twisted deformation of the stripped optical fiber in the outer frame 1 is easy to be damaged, therefore, the second rotation stopping protrusion 12 is arranged on the outer periphery of the second opening 1c, the second rotation stopping groove 311a is arranged on the second boss 311, the rotation stopping groove extends along the axial direction of the distribution assembly 3, when the distribution cover 31 approaches and covers the second opening 1c, the rotation stopping protrusion is inserted into the rotation stopping groove and is clamped with the inner wall of the rotation stopping groove, so that the rotation of the distribution cover 31 relative to the outer frame 1 is prevented. Since the distribution cover 31 is connected with the optical fiber, and the outer frame 1 is connected with the peripheral protective layer of the optical cable through the tail sleeve assembly 2, when the optical cable is rotated, the optical fiber in the outer frame 1 is synchronously rotated and is not twisted, so that the effect of preventing the optical fiber from being damaged by twisting is achieved. It can be understood that the number of the second boss 311 and the second rotation stopping groove 311a can be increased on the premise of meeting the structural strength, and the utility model does not limit this.

[0047] Further, referring to Figures 3 to 5 In the embodiment of the utility model, the distribution assembly 3 further includes a second sealing member 33, the outer wall of the distribution cover 31 is formed with a second sealing groove 31a extending along the circumferential direction of the distribution cover 31, and the second sealing member 33 is arranged in the second sealing groove 31a and is sealingly connected with the inner wall of the wire passing channel 1a.

[0048] In the embodiment, considering that rainwater or dust may exist in the use environment of the optical cable distribution device, the distribution assembly 3 of the embodiment further includes a second sealing member 33, the second sealing member 33 can be a sealing ring with a circular or rectangular cross-sectional shape, and a second sealing groove 31a extending along the circumferential direction of the distribution cover 31 is arranged on the outer wall of the cylindrical structure of the distribution cover 31, the cross-sectional dimension of the sealing ring needs to be greater than the cross-sectional dimension of the second sealing groove 31a to partially protrude from the groove opening of the sealing groove, when the cylindrical structure of the distribution cover 31 is inserted into the second opening 1c, the sealing ring is elastically abutted with the inner wall of the wire passing channel 1a, so that the sealing between the distribution cover 31 and the outer frame 1 is realized to prevent rainwater or dust from entering the optical cable distribution device and damaging the optical fiber.

[0049] Further, referring to Figures 3 to 5 In the embodiment of the utility model, the tail sleeve assembly 2 includes a wire passing sleeve 21 and a first fixing sleeve 22, the wire passing sleeve 21 is formed with a wire inlet hole 2a; the wire passing sleeve 21 is formed with a first boss 211 extending along the circumferential direction of the wire passing sleeve 21, the inner wall of the wire inlet hole 2a is formed with a convex rib 11 extending along the circumferential direction of the wire inlet hole 2a, the wire passing sleeve 21 is arranged in the wire inlet hole 2a, and the first boss 211 is abutted with the convex rib 11 on the side facing the wire passing channel 1a; the first fixing sleeve 22 is detachably connected with the outer wall of the wire passing sleeve 21, and the convex rib 11 is limited between the first boss 211 and the first fixing sleeve 22.

[0050] In the embodiment, the tail sleeve assembly 2 comprises a threading sleeve 21 and a first fixing sleeve 22, the threading sleeve 21 is a cylindrical structure, an inlet hole 2a is formed in the threading sleeve 21, and a first boss 211 extending along the circumference of the threading sleeve 21 is formed on the outer wall of the threading sleeve 21. Optionally, the first boss 211 can be provided as a plurality of bosses distributed along the circumference of the threading sleeve 21. Preferably, the first boss 211 can be provided as a ring of bosses extending along the circumference of the threading sleeve 21. Compared with providing a plurality of bosses distributed along the circumference of the threading sleeve 21, this way is easier to realize the sealing of the optical cable branching device 1000, for example, a sealing structure or a sealing agent can be provided between the boss and the outer frame 1. Further, the first boss 211 can also be provided as a plurality of rings of bosses spaced apart and extending along the circumference of the threading sleeve 21, so that the sealing material can be filled between every two rings of bosses to improve the sealing performance of the optical cable branching device 1000.

[0051] The first fixing sleeve 22 is detachably connected with the outer wall of the threading sleeve 21, and the convex rib 11 is limited between the first boss 211 and the first fixing sleeve 22. Optionally, the outer wall of the threading sleeve 21 can be provided with elastic claws, when the first fixing sleeve 22 is sleeved to the outer wall of the threading sleeve 21 in the direction from the threading sleeve 21 to the outer frame 1, the inner wall of the first fixing sleeve 22 presses the elastic claws, after the first fixing sleeve 22 passes through the elastic claws, the elastic claws rebound and limit the first fixing sleeve 22, preventing the first fixing sleeve 22 from moving away from the outer wall of the threading sleeve 21 in the opposite direction, at this time, the convex rib 11 is limited between the first boss 211 and the first fixing sleeve 22. This way of providing elastic claws can realize the quick assembly of the first fixing sleeve 22 and the threading sleeve 21. Preferably, the outer wall of the threading sleeve 21 is provided with external threads, and the inner wall of the first fixing sleeve 22 is provided with internal threads matched with the external threads, that is, the first fixing sleeve 22 is screwed with the threading sleeve 21, by tightening the first fixing sleeve 22, the convex rib 11 can be clamped between the first fixing sleeve 22 and the first boss 211, at this time, the outer wall of the first fixing sleeve 22 is provided with a plurality of parallel wall surfaces for clamping by a wrench or the like. This way of screwing can be adjusted in tightness, after long-term use and loosening, the optical cable branching device can be used again by adjusting the tightness of the first fixing sleeve 22, without the need to replace parts, thereby improving the service life of the optical cable branching device. Moreover, screwing can provide greater extrusion force, facilitating the sealed connection between the threading sleeve 21 and the outer frame 1.

[0052] The threading sleeve 21 can be made of plastic material capable of slight deformation, and the end of the threading sleeve 21 away from the outer frame 1 is tapered in the direction away from the outer frame 1, and correspondingly, the inner cavity of the end of the first fixing sleeve 22 away from the outer frame 1 is tapered in the direction away from the outer frame 1, when the first fixing sleeve 22 moves towards the outer frame 1, the two tapered surfaces contact each other, and the first fixing sleeve 22 extrudes the threading sleeve 21, so that the threading hole in the threading sleeve 21 is shrunk to tightly fit the outer protective layer of the optical cable, thereby realizing the sealing between the threading sleeve 21 and the optical cable.

[0053] Further, referring to Figures 3 to 5 In an embodiment of the present application, the outer wall of the threading sleeve 21 further forms a first rotation-stopping protrusion 212, and the convex rib 11 forms a first rotation-stopping groove 11a, and the first rotation-stopping protrusion 212 is connected with the inner wall of the first rotation-stopping groove 11a.

[0054] In this embodiment, considering the actual working condition of the optical cable entering the room, the optical cable may be rotated, which can easily cause the twisted deformation of the stripped optical fiber in the outer frame 1 and damage the optical fiber, therefore, the first rotation-stopping protrusion 212 is arranged on the outer wall of the threading sleeve 21, and the first rotation-stopping groove 11a extending in the direction of the threading passage 1a is arranged on the convex rib 11, the threading sleeve 21 enters the threading passage 1a in the outer frame 1 from the second opening 1c and moves towards the first opening 1b until the first protrusion 211 abuts against the convex rib 11, in this process, the first rotation-stopping protrusion 212 is inserted into the first rotation-stopping groove 11a and connected with the inner wall of the rotation-stopping groove, which can prevent the threading sleeve 21 from rotating relative to the outer frame 1. Since the optical cable is connected with the threading sleeve 21, and the optical fiber is connected with the outer frame 1 through the branching structure, at this time, preventing the threading sleeve 21 from rotating relative to the outer frame 1 can prevent the twisted deformation of the optical fiber and damage the optical fiber.

[0055] Further, referring to Figure 5 and Figure 6 In an embodiment of the present application, the tail sleeve assembly 2 further comprises a wire fixing device 23, the wire fixing device 23 comprises a movable clamping seat 231 and a stationary clamping seat 232, the stationary clamping seat 232 is arranged in the threading passage 1a and connected with the threading sleeve 21, the movable clamping seat 231 is detachably connected with the stationary clamping seat 232, and a clamping space 23a is formed between the movable clamping seat 231 and the stationary clamping seat 232.

[0056] In the embodiment, considering that the optical cable splitter may be subjected to axial tension in actual use, the tail sleeve assembly 2 is provided with a wire fixing device 23, the wire fixing device 23 comprises a movable clamp 231 and a static clamp 232, the movable clamp 231 and the static clamp 232 are located on the side of the threading sleeve 21 facing the wire passing channel 1a, the static clamp 232 is fixedly connected with the threading sleeve 21, and the threading sleeve 21 and the static clamp 232 are optionally in an integrated structure. The movable clamp 231 and the static clamp 232 are connected through a screw, a clamping space 23a is formed between the movable clamp 231 and the static clamp 232, the unstripped part of the optical cable can be clamped in the clamping space 23a, and the clamping force can be adjusted by tightening the screw. In this way, the optical cable and the protective layer can be fixed to the threading sleeve 21 and then connected with the outer frame 1, so that a larger tension can be borne, and the optical fiber in the outer frame 1 is prevented from being damaged due to tension.

[0057] Further, please refer to Figures 3 to 5 In the embodiment, the tail sleeve assembly 2 further comprises a first sealing member 24, the first boss 211 is provided with a first sealing groove 211a extending along the circumference of the threading sleeve 21, and the first sealing member 24 is arranged in the first sealing groove 211a and sealingly connected with the inner wall of the wire passing channel 1a.

[0058] In the embodiment, considering that rainwater or dust may exist in the use environment of the optical cable splitter, the tail sleeve assembly 2 further comprises a first sealing member 24, the first sealing member 24 can be a sealing ring with a circular or rectangular cross section, and a first sealing groove 211a extending along the circumference of the threading sleeve 21 is arranged on the side of the first boss 211 facing the inner wall of the wire passing channel 1a. The cross-sectional dimension of the sealing ring needs to be greater than that of the first sealing groove 211a, so that the sealing ring partially protrudes from the groove of the first sealing groove 211a. When the threading sleeve 21 enters the wire passing channel 1a, the sealing ring elastically abuts against the inner wall of the wire passing channel 1a, so that the sealing between the wire distribution cover 31 and the outer frame 1 is realized, and rainwater or dust is prevented from entering the optical cable splitter and damaging the optical fiber.

[0059] The above merely illustrates the exemplary embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. An optical cable splitter, characterized in that, The optical cable splitter includes: The outer frame (1) has a wire passage (1a) that passes through the outer frame (1) and the two ends of the wire passage (1a) are respectively formed with a first opening (1b) and a second opening (1c). Tail sleeve assembly (2), on which a wire inlet hole (2a) is formed, the tail sleeve assembly (2) is connected to the periphery of the first opening (1b), and the wire inlet hole (2a) communicates with the first opening (1b); A branch assembly (3) having at least two branch holes (3a), the branch assembly (3) covering the second opening (1c) and connected to the periphery of the second opening (1c), the second opening (1c) communicating with the branch holes (3a); and At least two branch sleeves (4), each branch sleeve (4) is connected to the branch assembly (3), and the inner cavity of each branch sleeve (4) is connected to a branch hole (3a).

2. The optical cable splitter as described in claim 1, characterized in that, The splitter assembly (3) is provided with a plurality of splitter holes (3a), the splitter assembly (3) has a central axis (3B), and the plurality of splitter holes (3a) are arranged in a ring around the central axis (3B) of the splitter assembly (3).

3. The optical cable splitter as described in claim 2, characterized in that, The branch sleeve (4) includes a first pipe section (41), a connecting pipe section (42) and a second pipe section (43) connected in sequence, and the first pipe section (41) is connected to the periphery of the branch hole (3a); The first pipe segment (41) and the second pipe segment (43) are arranged parallel to the central axis (3B) of the branch assembly (3), and the connecting pipe segment (42) is arranged gradually away from the central axis (3B) of the branch assembly (3) along the direction from the first pipe segment (41) to the second pipe segment (43).

4. The optical cable splitter as described in claim 1, characterized in that, The splitter assembly (3) includes a splitter cover (31) and a second fixing sleeve (32). The splitter cover (31) is provided with at least two splitter holes (3a). The outer wall of the splitter cover (31) is provided with a second boss (311) extending circumferentially along the splitter cover (31). The dividing cover (31) covers the second opening (1c) and extends into the second opening (1c), and the second boss (311) abuts against the outer periphery of the second opening (1c); The second fixing sleeve (32) is fitted over the wire divider cover (31) and is detachably connected to the outer frame (1). The second boss (311) is located between the second fixing sleeve (32) and the outer periphery of the second opening (1c).

5. The optical cable splitter as described in claim 4, characterized in that, A second anti-rotation protrusion (12) is formed on the outer periphery of the second opening (1c), and a second anti-rotation groove (311a) is formed on the second boss (311). The anti-rotation protrusion engages with the inner wall of the anti-rotation groove.

6. The optical cable splitter as described in claim 4, characterized in that, The splitter assembly (3) further includes a second seal (33). The outer wall of the splitter cover (31) is formed with a second sealing groove (31a) extending circumferentially along the splitter cover (31). The second seal (33) is disposed in the second sealing groove (31a) and is sealed to the inner wall of the wire passage (1a).

7. The optical cable splitter as described in any one of claims 1 to 6, characterized in that, The tail sleeve assembly (2) includes a threading sleeve (21) and a first fixing sleeve (22), and the threading sleeve (21) forms the inlet hole (2a); The threading sleeve (21) has a first protrusion (211) extending circumferentially along the outside of the threading sleeve (21), and the inner wall of the first opening (1b) has a rib (11) extending circumferentially along the first opening (1b). The threading sleeve (21) passes through the first opening (1b), and the first protrusion (211) and the rib (11) abut against the side facing the thread passage (1a). The first fixing sleeve (22) is detachably connected to the outer wall of the threading sleeve (21), and the protruding rib (11) is located between the first boss (211) and the first fixing sleeve (22).

8. The optical cable splitter as described in claim 7, characterized in that, The outer wall of the threading sleeve (21) is also formed with a first anti-rotation protrusion (212), and a first anti-rotation groove (11a) is formed on the rib (11). The first anti-rotation protrusion (212) is engaged with the inner wall of the first anti-rotation groove (11a).

9. The optical cable splitter as described in claim 7, characterized in that, The tail sleeve assembly (2) also includes a wire fastener (23), which includes a movable clamp (231) and a stationary clamp (232); The stationary clamp (232) is located in the wire passage (1a) and connected to the wire threading sleeve (21). The movable clamp (231) is detachably connected to the stationary clamp (232), and a clamping space (23a) is formed between the movable clamp (231) and the stationary clamp (232).

10. The optical cable splitter as described in claim 7, characterized in that, The tail sleeve assembly (2) further includes a first sealing member (24), on which a first sealing groove (211a) is provided extending circumferentially along the wire sleeve (21), and the first sealing member (24) is disposed in the first sealing groove (211a) and sealed to the inner wall of the wire passage (1a).

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