A high-conductivity, tensile-resistant optical cable assembly

Abstract

The present invention discloses a high-conductivity, tensile-resistant optical cable assembly, which specifically relates to the technical field of optical cable assemblies. The assembly comprises a reinforcing core and a plurality of optical fiber cables wound around the outer surface thereof, and further comprises a bend-resistant sleeve, a pull sleeve, a main body and a sleeve sequentially arranged along the axis direction of the reinforcing core, wherein: the pull sleeve is provided with a buffer cavity arranged in a circular array, and a plurality of end strips provided on the bend-resistant sleeve are embedded in the buffer cavity to squeeze the optical fiber cable into a curved portion and an inclined portion in the buffer cavity. The high-conductivity, tensile-resistant optical cable assembly provided by the invention is fixedly connected between the bend-resistant sleeve, the pull sleeve and the main body. When the optical cable is stretched, the bend-resistant sleeve and the pull sleeve serve as the main buffer to resist stretching. In the process of deformation of the bend-resistant sleeve and the pull sleeve, the optical fiber cable is deformed from the curved portion to the straight portion, thereby adapting to the deformation of the bend-resistant sleeve and the pull sleeve, thereby keeping the optical fiber cable in a stable state at all times and avoiding damage from excessive pulling.

Description

Technical Field

[0001] The present invention relates to the technical field of optical cable assemblies, and in particular to a high-conductivity, tensile-resistant optical cable assembly. Background Art

[0002] As a key component for connecting optical fiber segments or optical cables, optical cable connectors are also the core of optical cable assemblies as the connection end, ensuring the connection quality of optical fibers.

[0003] According to patent announcement number CN113325519B, announcement date: 2022-11-01, an optical cable connection device is disclosed, including: a first connection component, the first connection component includes a first ring, a first pull rope and a first connecting piece, the first ring is fixedly sleeved on the first optical cable, the first connecting piece is slidably sleeved on the first optical cable, and the first pull rope is connected between the first ring and the first connecting piece; a second connection component, the second connection component includes a second ring, a second pull rope and a second connecting piece, the second ring is fixedly sleeved on the second optical cable, the second connecting piece is slidably sleeved on the second optical cable, and the second pull rope is connected between the second ring and the second connecting piece; the first connecting piece is provided with a buckle, and the second connecting piece is provided with a clamping hole, and the buckle is clamped in the clamping hole.

[0004] In the prior art, including the aforementioned patents, the connecting ends of optical cable assemblies, which serve as mechanical connection devices, must not only be combed but also protected against bending and stretching of the exposed optical fibers after the cable is stripped. In the aforementioned patents, a buckle on a first connector is engaged with a hole on a second connector to connect the first and second connectors, thereby achieving a quick connection of the optical cable. The corresponding first and second connectors also provide protection against bending at the connecting ends. However, in actual use, especially for multi-mode optical cables, the optical fiber cables are placed in dedicated slots or clips and secured with elastic or mechanical fastening to prevent the optical fibers from sliding. However, the optical fibers within the rigidly clamped optical fiber cables can suffer some damage, resulting in a decrease in optical fiber transmission efficiency. Furthermore, for fixed optical fiber cables, when the optical cable is pulled, the tensile force directly acts on the optical fiber cable, and the tension applied to the fixed optical fiber cable can cause scratches or tears in the optical fibers within the cable. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-conductivity and tensile-resistant optical cable assembly, which can improve the tensile strength and protection strength of the optical cable while mechanically connecting the optical cable, thereby reducing the problem of decreased conductivity caused by bending damage and tensile damage to the optical cable.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-conductivity, tensile-resistant optical cable assembly, comprising a reinforcing core and a plurality of optical fiber cables wound around the reinforcing core, and further comprising a bend-resistant sleeve, a pull sleeve, a main body, and a sleeve sequentially arranged along the axis of the reinforcing core, wherein:

[0007] The pull sleeve is provided with buffer cavities arranged in a circular array, and multiple end strips provided on the bend-resistant sleeve are embedded in the buffer cavity to squeeze the optical fiber cable into a curved portion and an inclined portion in the buffer cavity. The sleeve is threadedly assembled on the main body to squeeze multiple optical fiber cables and maintain the axis of the reinforcing core horizontally.

[0008] Preferably, the pull sleeve is provided with pads that are arranged alternately with the buffer cavities, the fixing grooves provided on the outer walls on both sides of the pads match the protrusions provided on the end strips, and the extrusion grooves provided on the pads are expanded to compress the two adjacent buffer cavities respectively.

[0009] Preferably, a groove is provided on the end strip, a bubble is provided in the end strip, and a thin-walled portion provided on a side of the end strip adjacent to the optical fiber cable expands to squeeze the optical fiber cable when the groove narrows.

[0010] Preferably, the plurality of spring pieces provided on the main body are movably disposed in the extrusion grooves respectively.

[0011] Preferably, a wide channel communicating with the extrusion groove is provided on the pad, and a plurality of push pieces provided on the main body are movably provided in the buffer cavity respectively, and the spring pieces are inserted into the wide channel to expand the wide channel and compress the two adjacent buffer cavities respectively.

[0012] Preferably, the undulating portion provided on the spring piece is movably arranged in a positioning groove provided on the embedded wide channel.

[0013] Preferably, the pull sleeve is sleeved on the reinforcing core, and the sleeve is sleeved on the main body to push the undulating portion to extrude the positioning groove.

[0014] Preferably, the push piece is provided with abutting portions to push against the end of the end strip when the spring piece is inserted into the extrusion groove.

[0015] Preferably, the push piece is provided with a convex point and a cutting end, and when the sleeve is sleeved on the main body, the convex point is pushed and the cutting end is squeezed against the end strip.

[0016] Preferably, the cutting end is inserted into a slot provided on the end strip when the cutting end is squeezed against the end strip.

[0017] In the above technical solution, the present invention provides a high-conductivity, tensile-resistant optical cable assembly, which has the following beneficial effects: through the fixed connection between the bend-resistant sleeve, the pull sleeve and the main body, and then in the process of connecting the bend-resistant sleeve, the end strip on the bend-resistant sleeve is embedded in the buffer cavity to squeeze the optical fiber cable into a curved portion and an inclined portion, and then the optical fiber cable is squeezed and fixed with the sleeve. When the optical cable is stretched, the bend-resistant sleeve and the pull sleeve are used as the main buffer bodies to achieve the anti-stretching effect. In the process of deformation of the bend-resistant sleeve and the pull sleeve, the optical fiber cable is deformed from the curved portion to the straight portion, thereby adapting to the deformation of the bend-resistant sleeve and the pull sleeve, so that the optical fiber cable always maintains a stable state to avoid it from being damaged by excessive pulling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of an explosion structure provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of a pull sleeve structure provided in an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the overall cross-sectional structure provided by an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of a cross-sectional structure of a casing provided in an embodiment of the present invention;

[0024] Figure 6 The embodiment of the present invention provides Figure 1 A in the middle is an enlarged structural diagram;

[0025] Figure 7 The embodiment of the present invention provides Figure 1 The enlarged structural diagram at B in the middle;

[0026] Figure 8 The embodiment of the present invention provides Figure 1 The enlarged structural diagram at C in the middle;

[0027] Figure 9 The embodiment of the present invention provides Figure 4 The enlarged structural diagram at D in the middle;

[0028] Figure 10 The embodiment of the present invention provides Figure 4 Enlarged structural diagram at E in the middle.

[0029] Description of reference numerals:

[0030] 1. Strengthening core; 2. Bending sleeve; 3. Sleeve; 4. Dust-proof plastic cap; 5. Main body; 6. Pull sleeve; 11. Optical fiber cable; 12. Plastic-coated aluminum tape; 13. Sheath; 21. Limiting ring; 22. End strip; 23. Vesicle; 24. Groove; 25. Bump; 26. Slot; 27. Thin-walled part; 31. Inner ring; 32. Extruded rubber ring; 33. Inner convex part; 51. Side ring; 52. Retaining ring; 53. Push piece; 54. Bump position; 55. Insertion end; 56. Butt; 57. Shrapnel; 58. Corrugated part; 61. Pad; 62. Buffer cavity; 63. Inclined surface; 64. Storage groove; 65. Fixing groove; 66. Wide channel; 67. Extrusion groove; 68. Positioning groove. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] like Figure 1-10 As shown, a high-conductivity, tensile-resistant optical cable assembly includes a strengthening core 1 and a plurality of optical fiber cables 11 wound around the strengthening core 1, and further includes a bending sleeve 2, a pull sleeve 6, a main body 5, and a sleeve 3 arranged in sequence along the axis of the strengthening core 1, wherein:

[0033] The pull sleeve 6 is provided with a buffer cavity 62 arranged in a circular array, and the multiple end strips 22 provided on the bend-resistant sleeve 2 are embedded in the buffer cavity 62 to squeeze the optical fiber cable 11 into a curved portion and an inclined portion in the buffer cavity 62. The sleeve 3 is threadedly assembled on the main body 5 to squeeze the multiple optical fiber cables 11 and keep the axis of the reinforcing core 1 horizontal.

[0034] Specifically, a side ring 51 is provided on the main body 5, and an inner ring 31 is laser-welded inside the sleeve 3. The threads on the inner ring 31 and the side ring 51 cooperate, so that the sleeve 3 can be rotated on the side ring 51 through the inner ring 31 thread, thereby achieving a fixed installation between the sleeve 3 and the main body 5. The main body 5 is provided with a through-hole for passing the optical fiber cable 11 and the reinforcing core 1. A retaining ring 52 is laser-welded and fixed to the main body 5, coaxial with the side ring 51 and located inside the side ring 51. An extruded rubber ring 32 is glued to the inner wall of the inner ring 31. When the sleeve 3 is threadedly assembled on the main body 5, the extruded rubber ring 32 on the sleeve 3 squeezes and fixes multiple optical fiber cables 11, thereby maintaining the optical fiber cables 11 in a horizontal state, thereby reducing the decrease in signal transmission strength caused by their breakage.

[0035] Furthermore, an inclined surface 63 is provided in the buffer cavity 62, and a receiving groove 64 is provided on the inclined surface 63. A plastic-coated aluminum tape 12 is provided on the outside of the optical fiber cable 11, and a sheath 13 is provided on the outside of the plastic-coated aluminum tape 12. When the anti-bending sleeve 2 is sleeved on the sheath 13, the anti-bending sleeve 2 can provide a certain shielding and protection to the exposed end of the optical cable, and at the same time, can achieve an anti-bending effect on the end of the optical cable, and then glue is used to bond the anti-bending sleeve 2 to the sheath 13. After the pull sleeve 6 is sleeved on the reinforcing core 1 and multiple optical fiber cables 11 are respectively placed in the buffer cavity 62, the pull sleeve 6 is brought close to the anti-bending sleeve 2 so that multiple end strips 22 are embedded in the buffer cavity 62 and are located on one side of the inclined surface 63. At this time, the squeezed optical fiber cable 11 is a curved portion in the receiving groove 64, and the remaining portion on the inclined surface 63 is an inclined portion, such as Figure 10 As shown, the dotted circle I represents the inclined portion of the optical fiber cable 11, and the dotted circle II represents the curved portion of the optical fiber cable 11. By providing the optical fiber cable 11 with the inclined portion and the curved portion, multiple optical fiber cables 11 are spread and combed along the inclined portion, and the optical fiber cables 11 are squeezed and deformed within the storage groove 64 to be in a protective state. The pull sleeve 6 can then be fixed to the main body 5 and the bend-resistant sleeve 2 by glue or using corresponding bolts or buckles to fix the pull sleeve 6 to the main body 5 and the bend-resistant sleeve 2.

[0036] Furthermore, when the sleeve 3 is sleeved and threadedly fixed on the main body 5, the sleeve 3 is used to shield and protect the main body 5, the pull sleeve 6 and the anti-bending sleeve 2. When the sheath 13 or the anti-bending sleeve 2 is stretched, the anti-bending sleeve 2, the end strip 22 and the pull sleeve 6 are deformed to absorb the tension. In the process of the former being pulled and deformed, the curved portion of the optical fiber cable 11 in the receiving groove 64 is deformed accordingly to gradually move toward a straightened state, and then the optical fiber cable 11 is deformed in the process of being stretched and straightened. During the process, the bending-resistant sleeve 2, the end strip 22 and the pulling sleeve 6 are deformed to absorb the tensile force, thereby avoiding the optical fiber cable 11 as a unit that is pulled and bears the tensile force, so that the bending-resistant sleeve 2, the end strip 22 and the pulling sleeve 6 absorb the tensile force, and the optical fiber cable 11 is slightly deformed to adapt to the deformation displacement caused by the pulling of the former, thereby ensuring that the optical fiber cable 11 is in a relatively stable form, so that the optical cable assembly can have a better anti-tensile effect, and the optical fiber cable 11 is in a stable state for high signal transmission.

[0037] The bending-resistant sleeve 2 and the pull sleeve 6 are respectively rubber sleeves, and the end strip 22 is a rubber strip. The sleeve 3 is a stainless steel pipe. A dustproof plastic cap 4 is inserted into one end of the sleeve 3 relative to the bending-resistant sleeve 2.

[0038] In the above technical solution, the bend-resistant sleeve 2, the pull sleeve 6 and the main body 5 are fixedly connected, and then during the connection of the bend-resistant sleeve 2, the end strip 22 on the bend-resistant sleeve 2 is embedded in the buffer cavity 62 to squeeze the optical fiber cable 11 into a curved portion and an inclined portion, and then the optical fiber cable 11 is squeezed and fixed with the sleeve 3. When the optical cable is stretched, the bend-resistant sleeve 2 and the pull sleeve 6 serve as the main buffer bodies to achieve an anti-stretching effect. In the process of deformation of the bend-resistant sleeve 2 and the pull sleeve 6, the optical fiber cable 11 is deformed from the curved portion to the straight portion, thereby adapting to the deformation of the bend-resistant sleeve 2 and the pull sleeve 6, so that the optical fiber cable 11 always maintains a stable state to avoid it from being damaged by excessive pulling.

[0039] As an embodiment further provided by the present invention, the pull sleeve 6 is provided with pads 61 which are arranged in sequence with the buffer cavities 62, the fixing grooves 65 provided on the outer walls on both sides of the pads 61 match the protrusions 25 provided on the end strips 22, and the extrusion grooves 67 provided on the pads 61 are expanded to compress the two adjacent buffer cavities 62 respectively.

[0040] Specifically, the pads 61 are located between every two buffer cavities 62 , and the protrusions 25 are symmetrically arranged on opposite sides of the end strip 22 .

[0041] Furthermore, when the pull sleeve 6 is close to the bend-resistant sleeve 2, the end strip 22 is inserted into the buffer cavity 62. At this time, under the elastic action of the end strip 22 and the pull sleeve 6, the end strip 22 is squeezed into the buffer cavity 62. Then, when the ends of the pull sleeve 6 and the bend-resistant sleeve 2 are fitted, the protrusion 25 on the end strip 22 is embedded in the fixed groove 65, and then as the extrusion groove 67 is squeezed and expanded, the opposite side edges of the pad 61 are respectively approached to the buffer cavity 62. At this time, the buffer cavity 62 is narrowed by the pad 61 to squeeze the end strip 22, so that the protrusion 25 is more tightly embedded in the fixed groove 65, and the end strip 22 is squeezed to further exert force on the optical fiber cable 11 in the storage groove 64, so that the optical fiber cable 11 is more fully bent into the storage groove 64 to reserve a larger deformation distance of the optical fiber cable 11 and is subjected to the prestress applied by the end strip 22, so as to ensure the stability of the optical fiber cable 11 and reduce the shaking effect of the optical fiber cable 11 when using the optical cable.

[0042] The extrusion groove 67 may be expanded by providing a pressure block on the sleeve 3, and when the sleeve 3 is installed on the main body 5, the pressure block is used to extrude the groove body of the extrusion groove 67, thereby expanding the extrusion groove 67; or a support block may be additionally applied in the extrusion groove 67, thereby expanding the extrusion groove 67; or any other method known to those skilled in the art to expand the extrusion groove 67 is available.

[0043] As another embodiment provided by the present invention, a groove 24 is provided on the end strip 22, a bubble 23 is provided in the end strip 22, and a thin-walled portion 27 provided on the side of the end strip 22 adjacent to the optical fiber cable 11 expands to squeeze the optical fiber cable 11 when the groove 24 narrows.

[0044] Specifically, such as Figure 10 As shown, the vesicle 23 is located in the end strip 22, and the thin-walled portion 27 is the thinnest area of ​​the inner wall of the vesicle 23. It is located on the side of the end strip 22 close to the optical fiber cable 11. When the extrusion groove 67 is squeezed and expanded, the buffer cavity 62 is narrowed to squeeze the end strip 22, thereby making the end strip 22 close to the optical fiber cable 11, and the groove 24 is narrowed to squeeze the vesicle 23. At this time, the vesicle 23 expands toward the side of the thin-walled portion 27, and the thin-walled portion 27 is located on the side of the storage groove 64. The expanded thin-walled portion 27 is used to squeeze the optical fiber cable 11 in the storage groove 64, so that the optical fiber cable 11 is further bent into the storage groove 64 and fits more closely to the groove wall of the storage groove 64 to maintain stability.

[0045] As another embodiment provided by the present invention, a plurality of spring pieces 57 provided on the main body 5 are movably disposed in the extrusion grooves 67 .

[0046] Specifically, multiple spring clips 57 are fixedly welded to the main body 5 by laser and arranged in a circular array. When the main body 5 is placed on the reinforcing core 1 and close to the pull sleeve 6, the multiple spring clips 57 are respectively inserted into the extrusion groove 67. Since the width of the spring clip 57 is greater than the extrusion groove 67, the extrusion groove 67 is squeezed and expanded during the process of the spring clip 57 squeezing the extrusion groove 67. At the same time, the friction between the spring clip 57 and the inner wall of the extrusion groove 67 can also enhance the tensile strength. Then, by bringing the main body 5 close to the pull sleeve 6 and installing it with the pull sleeve 6, the optical fiber cable 11 before being fixed is bent more toward the storage groove 64 to increase the deformable distance. At the same time, by combing the multiple buffer cavities 62 and the end strips 22 squeezing and limiting the optical fiber cable 11, the stability and tensile strength of the optical fiber cable 11 are enhanced.

[0047] As another embodiment provided by the present invention, a wide channel 66 is provided on the pad 61 and is interconnected with the extrusion groove 67. A plurality of push pieces 53 are provided on the main body 5 and are movably provided in the buffer cavity 62 respectively, and the spring piece 57 is inserted into the wide channel 66 to expand the wide channel 66 and compress the two adjacent buffer cavities 62 respectively.

[0048] Specifically, a plurality of push pieces 53 are fixed to the main body 5 by laser welding, as shown in FIG. Figure 3As shown, the width of the wide channel 66 is greater than the extrusion groove 67, and the width of the spring piece 57 is greater than the wide channel 66. Then, when the main body 5 is close to the pull sleeve 6 and installed with the pull sleeve 6, the spring piece 57 is inserted into the wide channel 66, and the push piece 53 is inserted into the buffer cavity 62. At this time, the side of the push piece 53 and the outer wall of the pad 61 are in contact with each other, and when the spring piece 57 squeezes the inner wall of the wide channel 66, the pad 61 extends relative to the side of the wide channel 66 toward the buffer cavity 62, thereby squeezing the push piece 53 in the buffer cavity 62. At this time, through the extrusion friction between the push piece 53 and the pad 61, the friction force is used to improve the overall tensile strength of the optical cable.

[0049] As the best embodiment provided by the present invention, the undulating portion 58 provided on the spring piece 57 is movably provided in the positioning groove 68 provided on the embedded wide channel 66 .

[0050] Specifically, when the main body 5 is close to the pull sleeve 6, and the push piece 53 is inserted into the buffer cavity 62 and the spring piece 57 is squeezed into the wide channel 66, the friction between the push piece 53 and the pad 61 on the main body 5 and the friction between the spring piece 57 and the wide channel 66 and the extrusion groove 67 are used to improve the stability between the main body 5 and the pull sleeve 6, and avoid the two from separating when being pulled. When the main body 5 and the pull sleeve 6 are installed in place, the undulating portion 58 on the spring piece 57 is embedded in the positioning groove 68, and then the undulating portion 58 is embedded in the positioning groove 68 to further improve the installation stability between the main body 5 and the pull sleeve 6. At the same time, the undulating portion 58 is as shown in FIG. Figure 6 As shown, it is similar to a W-shaped curve. Due to the elasticity of the spring piece 57 itself and the corrugated portion 58 embedded in the positioning groove 68, when the optical cable itself is pulled, in addition to the friction between the push piece 53 and the pad 61 and the friction between the spring piece 57 and the wide channel 66 and the extrusion groove 67, which play an anti-stretching effect, the corrugated portion 58 is subjected to force and deformed to play an instantaneous tensile buffering effect, avoiding problems such as tearing of the optical cable joint due to excessive instantaneous tension. At the same time, the corrugated portion 58 can also play a role in stabilizing the connection between the main body 5 and the pull sleeve 6. Compared with some optical cable assemblies with fixed optical cables, the buffering to resist instantaneous stretching can reduce the problems of permanent tearing and irreversible deformation inside the optical cable assembly caused by instantaneous stretching, thereby improving the service life of the optical cable assembly. The elasticity of the corrugated portion 58 and the elasticity of the pull sleeve 6 can effectively buffer the instantaneous tension.

[0051] As another embodiment provided by the present invention, the pull sleeve 6 is sleeved on the reinforcing core 1 , and the sleeve 3 is sleeved on the main body 5 to push the undulating portion 58 to extrude the positioning groove 68 .

[0052] Specifically, such as Figure 5As shown, after the connection between the main body 5 and the pull sleeve 6 is completed, the pull sleeve 6 and the main body 5 are respectively sleeved on the reinforcing core 1, and there is a certain friction between the elasticity of the pull sleeve 6 itself and the reinforcing core 1. When the sleeve 3 is threadedly rotated on the main body 5 for installation, the inner wall of the sleeve 3 pushes and squeezes the undulating portion 58, thereby squeezing the undulating portion 58 into the positioning groove 68. At this time, multiple undulating portions 58 are squeezed into the positioning groove 68 to move closer to the axis of the reinforcing core 1, thereby utilizing multiple undulating portions 58 to squeeze the pull sleeve 6 to produce deformation to push the reinforcing core 1. The strong core 1 is squeezed, thereby increasing the friction between the strong core 1 and the pull sleeve 6. The friction between the pull sleeve 6 and the strong core 1 improves the tensile strength of the optical cable itself. At the same time, the sleeve 3 squeezes and limits the multiple undulating parts 58, thereby preventing the undulating parts 58 from detaching from the positioning groove 68, thereby ensuring the stability of the connection between the main body 5 and the pull sleeve 6. The stability of the connection between the main body 5 and the pull sleeve 6 further ensures the stable squeezing force of the spring 57 on the wide channel 66 and the squeezing groove 67, and the end strip 22 is always in a squeezed state. No glue is needed to achieve a quick connection and fixation between the main body 5 and the pull sleeve 6, and between the pull sleeve 6 and the bend-resistant sleeve 2.

[0053] As another embodiment provided by the present invention, the abutment 56 provided on the push piece 53 is used to abut against the end of the end strip 22 when the elastic piece 57 is inserted into the extrusion groove 67 .

[0054] Specifically, such as Figure 10 As shown, when the spring piece 57 is inserted into the extrusion groove 67, the abutment portion 56 gradually approaches the end of the end strip 22, and the extrusion groove 67 is squeezed and expanded to narrow the buffer cavity 62. At this time, the end strip 22 is squeezed to approach the optical fiber cable 11. At the same time, the groove 24 is narrowed to squeeze the bladder 23. At this time, the thin-walled portion 27 expands to squeeze the optical fiber cable 11 in the storage groove 64, so that the optical fiber cable 11 is further bent into the storage groove 64, and then as the main body 5 approaches the pull sleeve 6 to make the abutment portion 56 close to the end of the end strip 22. The portion 56 pushes the end of the end strip 22. At this time, the end strip 22 is squeezed and pushed to further bend into the receiving groove 64. Combined with the expansion of the thin-walled portion 27 and the squeezing of the end strip 22, the optical fiber cable 11 in the receiving groove 64 is fully bent into the receiving groove 64 to form a curved portion, thereby increasing the deformable distance of the optical fiber cable 11 and the stability of the optical fiber cable 11. The elasticity of the end strip 22 serves as a contact piece with the optical fiber cable 11, which can reduce the pressure damage to the optical fiber cable 11.

[0055] Further, such as Figure 10As shown, the inner wall of the sleeve 3 is provided with an inner convex portion 33, and the limiting ring 21 provided on the outer wall of the bend-resistant sleeve 2 is located on one side of the inner convex portion 33 when the sleeve 3 is installed on the main body 5, so that the inner convex portion 33 and the limiting ring 21 are squeezed and fitted to achieve a certain sealing effect on the optical cable joint, thereby achieving a certain waterproof, moisture-proof and other effects. At the same time, the blocking extrusion force between the limiting ring 21 and the inner convex portion 33 can be used to protect the optical cable pull rope.

[0056] As another embodiment further provided by the present invention, a protruding point 54 and an inserting end 55 are provided on the push piece 53 . When the sleeve 3 is sleeved on the main body 5 , the protruding point 54 is pushed and the inserting end 55 is squeezed against the end strip 22 .

[0057] Specifically, such as Figure 6 and Figure 10 As shown, the protrusion 54, the insertion end 55 and the abutment 56 are an integrated structure. When the main body 5 approaches the pull sleeve 6 and is installed on the pull sleeve 6, the buffer cavity 62 is narrowed to squeeze the end strip 22 close to the optical fiber cable 11. At the same time, as the main body 5 approaches the pull sleeve 6, the abutment 56 pushes the end of the end strip 22, thereby causing the end strip 22 to further bend into the receiving groove 64.

[0058] Furthermore, the sleeve 3 is installed by threading it onto the main body 5, and then the inner wall of the sleeve 3 pushes and squeezes the wavy portion 58 to squeeze the wavy portion 58 into the positioning groove 68. At this time, multiple wavy portions 58 are used to ensure the stability of the connection between the main body 5 and the pull sleeve 6, and then the sleeve 3 pushes and squeezes multiple protrusions 54 respectively, thereby driving multiple insertion ends 55 to approach the end strip 22 and squeeze the end strip 22. The squeezed end strip 22 cooperates with the push of the abutment 56, so that the end strip 22 bent toward the optical fiber cable 11 fits more fully on the optical fiber cable 11, and at the same time better limits the optical fiber cable 11 to a certain extent, thereby improving the stability of the optical fiber cable 11.

[0059] As a further preferred embodiment of the present invention, the cutting end 55 squeezes the end strip 22 to be inserted into the slot 26 provided on the end strip 22 .

[0060] Specifically, such as Figure 7 As shown, slot 26 is disposed within groove 24. When the plurality of protruding points 54 are squeezed by sleeve 3 and the insertion end 55 approaches end strip 22, it is accurately inserted into slot 26. The squeezing of end strip 22 by insertion end 55 causes end strip 22 to bend toward optical fiber cable 11, bending optical fiber cable 11 and inserting it into receiving groove 64. After sleeve 3 is installed on body 5, sleeve 3 maintains its squeezing and limiting effect on protruding points 54, thereby keeping insertion end 55 stably positioned within slot 26.

[0061] Furthermore, when the sleeve 3 is fixed and the sheath 13 or the bend-resistant sleeve 2 is stretched, the deformation of the bend-resistant sleeve 2, the end strip 22 and the pulling sleeve 6 is used to absorb the tension. At this time, because the insertion end 55 is hooked in the slot 26, the push piece 53 is used to pull and fix the end strip 22 to prevent the end strip 22 from detaching from the buffer cavity 62. At the same time, the deformation of the end strip 22 is used to straighten it to reduce the squeezing of the optical fiber cable 11, so that the optical fiber cable 11 can be deformed to a certain extent and tend to be straightened, thereby improving the overall stability. The multi-directional friction and buffering can effectively provide strong protection for the tensile strength of the optical cable itself, so as to improve the stability of the optical cable itself and the stability of the optical fiber cable 11, and reduce the problems of breakage and pulling damage to the optical fiber cable 11.

[0062] Working principle: After stripping the end of the optical cable, multiple optical fiber cables 11 and the reinforcing core 1 are exposed, and the bend-resistant sleeve 2 is bonded and fixed to the sheath 13 by glue. Then, the pull sleeve 6 is placed on the reinforcing core 1 and close to the bend-resistant sleeve 2, and then multiple optical fiber cables 11 are respectively placed in the buffer cavity 62. Then, the pull sleeve 6 is driven to approach the bend-resistant sleeve 2 so that multiple end strips 22 are embedded in the buffer cavity 62 and located on the side of the inclined surface 63. Then, the protrusion 25 on the end strip 22 is embedded in the fixing groove 65 to achieve the connection between the bend-resistant sleeve 2 and the pull sleeve 6. Then, multiple optical fiber cables 11 and the reinforcing core 1 are passed through the main body 5 and the main body 5 is brought close to the pull sleeve 6. At this time, the spring piece 57 is inserted into the wide channel 66, and the push piece 53 is inserted into the buffer cavity 62. As the main body 5 continues to approach the pull sleeve 6, the side of the push piece 53 and the outer wall of the pad 61 are in contact with each other so that the side of the pad 61 extends into the buffer cavity 62, thereby squeezing the push piece 53 in the buffer cavity 62.

[0063] Furthermore, as the spring piece 57 compresses the extrusion groove 67, the extrusion groove 67 is squeezed and expanded. The spacer 61 located on one side of the extrusion groove 67 approaches the buffer cavity 62. At this time, the spacer 61 narrows the buffer cavity 62 to squeeze the end strip 22, thereby making the protrusion 25 fit more tightly into the fixing groove 65. At the same time, the end strip 22 is squeezed closer to the optical fiber cable 11, and the groove 24 narrows to squeeze the bladder 23. At this time, the bladder 23 expands toward the thin-walled portion 27, and then uses the expanded thin-walled portion 27 to push the optical fiber cable 11 in the receiving groove 64 to fit more tightly against the groove wall of the receiving groove 64 to maintain stability.

[0064] Furthermore, as the main body 5 moves closer to the pull sleeve 6, the abutment portion 56 pushes the end of the end strip 22 and bends the end strip 22 further into the receiving groove 64. After the main body 5 and the pull sleeve 6 are installed, the undulating portion 58 is embedded in the positioning groove 68 to further improve the stability of the installation between the main body 5 and the pull sleeve 6.

[0065] The sleeve 3 is then sleeved onto the main body 5 and threadedly rotated with the main body 5. At this time, the sleeve 3 squeezes and limits the multiple undulating portions 58, thereby preventing the undulating portions 58 from disengaging from the positioning groove 68. At the same time, the multiple undulating portions 58 are squeezed into the positioning groove 68 to move closer along the axis of the reinforcing core 1, thereby utilizing the multiple undulating portions 58 to squeeze the pull sleeve 6 to produce deformation and squeeze toward the reinforcing core 1. The friction between the pull sleeve 6 and the reinforcing core 1 increases the tensile strength of the optical cable itself. Then, as the sleeve 3 approaches the bend-resistant sleeve 2, the sleeve 3 pushes and squeezes the multiple protrusions 54, thereby driving the multiple insertion ends 55 to approach the end strip 22 and squeeze the end strip 22. The squeezed end strip 22 cooperates with the push of the abutment portion 56, so that the end strip 22 bent toward the optical fiber cable 11 is more fully fitted to the optical fiber cable 11. After the installation is completed between the sleeve 3 and the main body 5, the sleeve 3 is fixed and the sheath 13 or the bend-resistant sleeve 2 is stretched. At this time, the deformation of the bend-resistant sleeve 2, the end strip 22 and the pull sleeve 6 absorbs the tensile force, and the optical fiber cable 11 deforms and moves from the bent part to the straight part to adapt to the deformation of the bend-resistant sleeve 2 and the pull sleeve 6, so that the optical fiber cable 11 always maintains a stable state to avoid it from being damaged by excessive pulling.

[0066] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A high-conductivity, tensile-resistant optical cable assembly, comprising a reinforcing core (1) and a plurality of optical fiber cables (11) wound around the reinforcing core, characterized in that: It also includes a bending-resistant sleeve (2), a pulling sleeve (6), a main body (5) and a sleeve (3) arranged in sequence along the axial direction of the reinforcing core (1), wherein: The pull sleeve (6) is provided with a buffer cavity (62) arranged in a circular array, and the plurality of end strips (22) provided on the bending-resistant sleeve (2) are embedded in the buffer cavity (62) to squeeze the optical fiber cable (11) into a curved portion and an inclined portion in the buffer cavity (62), and the sleeve (3) is threadedly assembled on the main body (5) to squeeze the plurality of optical fiber cables (11) and the axis of the reinforcing core (1) to remain horizontal; The pull sleeve (6) is provided with pads (61) arranged in an alternating manner with the buffer cavities (62), the fixing grooves (65) provided on the outer walls of the two opposite sides of the pads (61) match the protrusions (25) provided on the end strips (22), and the extrusion grooves (67) provided on the pads (61) expand to respectively compress the two adjacent buffer cavities (62); A plurality of spring pieces (57) provided on the main body (5) are movably disposed in the extrusion grooves (67); The pad (61) is provided with a wide channel (66) that is interconnected with the extrusion groove (67); a plurality of push pieces (53) provided on the main body (5) are movably provided in the buffer cavity (62), and the spring piece (57) is inserted into the wide channel (66) to expand the wide channel (66) and respectively compress the two adjacent buffer cavities (62); The push piece (53) is provided with a convex point (54) and an inserting end (55). When the sleeve (3) is sleeved on the main body (5), the convex point (54) is pushed and the inserting end (55) is pressed against the end strip (22).

2. A high-conductivity, tensile-resistant optical cable assembly according to claim 1, characterized in that: A groove (24) is provided on the end strip (22), a vesicle (23) is provided in the end strip (22), and a thin-walled portion (27) provided on a side of the end strip (22) adjacent to the optical fiber cable (11) expands to squeeze the optical fiber cable (11) when the groove (24) is narrowed.

3. The high-conductivity, tensile-resistant optical cable assembly according to claim 1, characterized in that: The undulating portion (58) provided on the spring piece (57) is movably arranged in a positioning groove (68) provided on the embedded wide channel (66).

4. A high-conductivity, tensile-resistant optical cable assembly according to claim 3, characterized in that: The pull sleeve (6) is sleeved on the reinforcing core (1), and the sleeve (3) is sleeved on the main body (5) to push the folded portion (58) to extrude the positioning groove (68).

5. The high-conductivity, tensile-resistant optical cable assembly according to claim 1, characterized in that: The push piece (53) is provided with abutment (56) for pushing against the end of the end strip (22) when the spring piece (57) is inserted into the extrusion groove (67).

6. The high-conductivity, tensile-resistant optical cable assembly according to claim 1, characterized in that: When the cutting end (55) squeezes the end strip (22), it is inserted into the slot (26) provided on the end strip (22).

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