A device for securing the end of an optical cable

Abstract

The utility model discloses a kind of for optical cable end fixed device, belong to optical cable application technical field, including fixed base, fixed pressing block and locking bushing, using the combination setting of fixed base and fixed pressing block, the compression holding fixed of optical cable end can be realized, then using the matching of locking bushing and optical cable end, and the installation of locking bushing on fixed base, the multi-stage fixing of optical cable end can be correspondingly realized, enough tensile capacity is provided for optical cable after end fixed, avoid the accidental pull-off of optical cable end, improve the reliability and stability of optical cable end fixed.The utility model discloses a kind of for optical cable end fixed device, its structure is simple, convenient to use, can reliably realize the multi-stage fixing of optical cable end, ensure the reliability of optical cable end fixed, provide enough tensile capacity for fixed optical cable end, avoid the accidental pull-off of optical cable's end, realize the stable laying and use of optical cable, with good practical value.

Description

Technical Field

[0001] This utility model belongs to the field of optical cable application technology, specifically relating to a device for fixing the end of an optical cable. Background Technology

[0002] In the process of laying optical cables, there are often situations where it is necessary to fix the ends of the optical cables, such as when the optical cable is introduced into the optical fiber box for fiber splitting.

[0003] Typically, fiber optic cable ends are secured using a cable clamping mechanism, which clamps the outer sheath of the cable end. However, this method relies solely on clamping the outer sheath for fixation, meaning it depends on frictional forces. While this method meets some requirements for cable end fixation, it cannot guarantee the tensile strength of the cable end. The fixed cable end has a relatively low tensile strength, posing a risk of pull-out and affecting the connection and deployment of optical units. Utility Model Content In view of one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides a device for fixing the end of an optical cable, which can reliably lock the end of the optical cable, improve the axial tensile strength after the end of the optical cable is fixed, prevent the end of the optical cable from being accidentally pulled off due to insufficient tensile strength after fixing, and ensure the reliability of the end fixing of the optical cable.

[0004] To achieve the above objectives, this utility model provides a device for fixing the end of an optical cable, including a fixing base, a fixing block, and a locking bushing; One end of the fixed base is a crimping end for crimping optical cables, and the other end is a fixing end for fixing locking bushings. The fixing end is located on one side of the crimping end in a first direction. The fixed base is provided with mounting parts, which are used for connecting and installing the fixed base on corresponding components. The fixing block is detachably connected to the crimping end and is used to press the optical cable onto the crimping end. The locking bushing includes a locking part and an adhesive part arranged coaxially; wherein, the locking part has an optical cable sheath groove, which can be connected to the fixed end, and the end of the optical cable held by the fixing block can be embedded and fixed in the optical cable sheath groove; the adhesive part has a through hole for optical unit and a reinforcing core groove, the through hole for optical unit to pass through in the optical cable, and the reinforcing core groove for accommodating the reinforcing core of the optical cable and realizing the adhesive fixation of the reinforcing core.

[0005] As a further improvement of this utility model, the top surface of the crimping end is provided with a first crimping groove along the first direction; and / or, the side end face of the fixing block used to press the optical cable is provided with a second crimping groove; then the fixing block can press the optical cable into the corresponding crimping groove when connected with the crimping end.

[0006] As a further improvement of this utility model, a plurality of friction protrusions are provided on the inner wall surface of the first crimping groove and / or the second crimping groove; and / or The mounting component has multiple mounting holes on the fixed end, so that the fixed base can be connected to the corresponding component through multiple connectors passing through the corresponding mounting holes. and / or The fixed end is also provided with a pressing and locking component for pressing and sealing strip materials.

[0007] As a further improvement of this utility model, a finite surface is formed at the junction between the crimping end and the fixed end; and The locking part has a bushing end face on the side opposite to the adhesive part, and the bushing end face can abut against the limiting surface when the locking part is connected to the fixed end.

[0008] As a further improvement of this utility model, the limiting surface includes a base limiting surface located on one side of the pressing end and a pressing block limiting surface located on one side of the fixed pressing block; the pressing block limiting surface can be flush with the base limiting surface after the fixed pressing block is connected to the pressing end.

[0009] As a further improvement of this utility model, the top surface of the fixed end is provided with a bushing insertion groove, and the locking part can be embedded in the bushing insertion groove, thereby realizing the locking bushing relative to the fixed base in a first direction.

[0010] As a further improvement of this utility model, at least one bushing limiting groove is provided on the two side walls facing the bushing insertion groove along the second direction; wherein, the second direction is a horizontal direction perpendicular to the first direction; Accordingly, a lateral limiting member is provided on the outer periphery of the locking part, which can be embedded in the corresponding bushing limiting groove when the locking part is embedded in the bushing insertion groove.

[0011] As a further improvement of this utility model, the axis of the optical unit through hole is arranged parallel to the axis of the reinforcing core groove, and the reinforcing core groove is provided on at least one side of the optical unit through hole in the radial direction. or The axis of the optical unit through hole is aligned with the axis of the reinforcing core groove.

[0012] As a further improvement of this utility model, one end of the reinforcing core groove is connected to the optical cable sheath groove, and the other end does not extend to the end of the adhesive part; and the adhesive part is provided with an overflow hole that connects to the inner cavity of the adhesive part.

[0013] As a further improvement of this utility model, the fixing block and the fixing base are detachably connected by multiple locking components; or One end of the fixed pressure block is hinged to the fixed base, and the other end can be detachably connected to the fixed base through a locking member.

[0014] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0015] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include: The device for fixing the end of an optical cable in this invention includes a fixing base, a fixing block, and a locking bushing. By combining the fixing base and the fixing block, the end of the optical cable can be pressed and fixed. By matching the locking bushing with the end of the optical cable and installing the locking bushing on the fixing base, multi-level fixing of the end of the optical cable can be achieved. This provides sufficient tensile strength for the optical cable after the end is fixed, avoids accidental pull-out of the end of the optical cable, and improves the reliability and stability of the optical cable end fixing.

[0016] The device for fixing the end of optical cable in this utility model has a simple structure and is easy to use. It can reliably achieve multi-level fixing of the end of optical cable, ensure the reliability of the fixing of the end of optical cable, provide sufficient tensile strength for the fixed end of optical cable, avoid accidental pull-out of the end of optical cable, realize the stable laying and use of optical cable, and has good practical value. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the device structure for fixing the end of an optical cable in an embodiment of this utility model; Figure 2 This is a schematic diagram of the fixed base structure in an embodiment of this utility model; Figure 3 This is a schematic diagram of the fixed pressure block structure in an embodiment of this utility model; Figure 4 , Figure 5 This is a schematic diagram of the locking bushing structure in one embodiment of the present invention; Figure 6 This is a schematic diagram of the locking bushing structure in another embodiment of the present invention; Figure 7 This is a schematic diagram of the structure after the locking bushing is fixed to the end of the optical cable in an embodiment of this utility model; Figure 8 This is a cross-sectional view of the structure when the device in this utility model is used to lock the end of the optical cable; In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Fixed base; 2. Fixed pressure block; 3. Locking bushing; 4. Optical cable; 101. First crimping groove; 102. Locking hole; 103. Mounting hole; 104. Bushing insert groove; 105. Bushing limiting groove; 106. Crimping locking element; 107. Friction protrusion; 108. Mounting positioning groove; 109. Base limiting surface; 201. Second crimping groove; 202. Locking element; 203. Pressing block limiting surface; 301. Locking part; 302. Adhesive part; 303. Lateral limiting part; 304. Optical cable sheath groove; 305. Optical unit through hole; 306. Reinforcing core groove; 307. Bushing end face; 308. Glue overflow hole; 401. Optical unit. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] In the description of this utility model, it should be understood that, unless otherwise explicitly specified and limited, the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, unless otherwise expressly defined, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] Below, for reference Figures 1-8 This invention describes a device for fixing the end of an optical cable according to a preferred embodiment of the present invention.

[0025] like Figure 1 As shown, the device for fixing the end of the optical cable in the preferred embodiment includes a fixing base 1, a fixing block 2, and a locking bushing 3.

[0026] The fixed base 1 has a crimping end at one end and a fixing end at the other end for fixing the locking bushing 3. The crimping end crimps the unstripped end of the optical cable 4, and the fixing end fixes the locking bushing 3. At the same time, the fixing end is located on the first direction side of the crimping end, and an installation component is provided on the fixed base to connect and install the fixed base 1 on the corresponding component.

[0027] More specifically, the top surface of the crimping end is provided with a first crimping groove 101 along a first direction, and the top surface of the fixed end is provided with a bushing insert groove 104, which is located on one side of the first crimping groove 101 along the first direction. At the same time, the fixed base 1 is provided with a mounting hole 103 for fixing the base 1 to the corresponding component (e.g., a fiber distribution box).

[0028] Furthermore, the fixing block 2 is detachably connected to the crimping end of the fixing base 1, and is used to press the unstripped end (the end with the outer sheath) of the optical cable 4 onto the crimping end (e.g., in the first crimping groove 101).

[0029] Furthermore, the locking bushing 3 includes a locking part 301 and an adhesive part 302 coaxially arranged. The locking part 301 can achieve limiting locking in the first direction after being connected to the fixed end (e.g., embedded in the bushing insertion groove 104). The locking part 301 has an optical cable sheath groove 304, which allows the end of the optical cable 4 held by the fixing block 2 to be embedded and fixed in the optical cable sheath groove 304. Meanwhile, the adhesive part 302 has a through hole 305 for optical unit 401 and a reinforcing core groove 306. The through hole 305 is used for the optical unit 401 in the optical cable 4 to pass through, and the reinforcing core groove 306 is used to accommodate the reinforcing core of the optical cable 4 and to achieve adhesive fixation of the reinforcing core.

[0030] By utilizing the aforementioned design of the optical cable end fixing device in the preferred embodiment, multi-level fixing of the optical cable 4 end can be achieved (first-level pressing of the fixing block 2, and second-level locking of the reinforcing core by the locking bushing 3), and sufficient tensile force can be provided for the optical cable 4 after the end is fixed, ensuring the reliability of the optical cable 4 after the end is fixed, and avoiding the phenomenon of accidental pull-out of the optical cable 4 after the end is fixed due to tensile force (such as dragging and laying involved in optical cable wiring construction).

[0031] Furthermore, to increase the reliability of the optical cable 4 during crimping and locking, it is preferable to provide a second crimping groove 201 on one end face of the fixed pressure block 2, so that the second crimping groove 201 can be directly opposite the first crimping groove 101 after the fixed pressure block 2 is connected to the crimping end, and combine with the first crimping groove 101 to form a crimping hole with both ends through.

[0032] At this time, the outer sheath of the optical cable 4 is pressed by the inner wall of the two crimping grooves. The second crimping groove 201 is used to increase the contact area during crimping and locking, thereby improving the stability and reliability of the optical cable 4 after crimping and fixing.

[0033] As another example, in actual installation, it is also preferable to provide a plurality of friction protrusions 107 on the inner wall surface of the first crimping groove 101 and / or the second crimping groove 201. The friction protrusions 107 are provided to increase the friction between the crimping groove and the outer sheath of the optical cable 4, thereby improving the reliability of the crimping.

[0034] More specifically, a limiting surface is formed at the junction between the crimping end and the fixing end; and the locking part 301 has a bushing end face 307 on the side opposite to the adhesive part 302. The bushing end face 307 can abut against the limiting surface after the locking part 301 is inserted into the bushing insertion groove 104, so that the optical cable sheath groove 304 is aligned with the first crimping groove 101.

[0035] In actual installation, the end of the optical cable 4 to be fixed is introduced from the side of the fixing base 1 away from the fixed end, pressed and fixed by the fixing block 2, and then glued to the locking bushing 3. At this time, the direction of the tension on the optical cable 4 is from the fixed end to the crimping end, which means that the locking bushing 3 has a tendency to move from the optical cable 4 towards the crimping end. Therefore, based on the setting of the limiting surface, it can effectively provide physical obstruction for the fixed end of the optical cable 4, improve the reliability of the axial limiting of the locking bushing 3, and thus improve the accuracy of fixing the end of the optical cable 4.

[0036] As a specific example, in a preferred embodiment, the limiting surface includes a base limiting surface 109 located on one side of the crimping end and a pressing block limiting surface 203 located on one side of the fixing pressing block 2. The pressing block limiting surface 203 is flush with the base limiting surface 109 after the fixing pressing block 2 is connected to the crimping end, and the two abut against the bushing end face 307 on the locking part 301, ensuring the reliability of the locking bushing 3 under the tension of the optical cable 4.

[0037] Furthermore, in actual installation, depending on the different models and specifications of the optical cable 4, the locking bushing 3 in the preferred embodiment has a variety of specifications to choose from.

[0038] As an example, such as Figure 4 , Figure 5 As shown, the optical cable 4 is a cable type with lateral reinforcement. In this case, the axis of the optical unit through-hole 305 is parallel to the axis of the reinforcing core groove 306, and the reinforcing core groove 306 is provided on at least one radial side of the optical unit through-hole 305, for example... Figure 5 As shown, reinforcing core grooves 306 are provided on both radial sides of the optical unit through hole 305. More specifically, the optical unit through hole 305 and the reinforcing core grooves 306 are laterally connected to facilitate the machining of the locking bushing 3.

[0039] As another example, the optical cable 4 is a circular cable with a central reinforcing member. In this case, the axis of the optical unit through-hole 305 coincides with the axis of the reinforcing core groove 306, meaning the reinforcing core and the optical unit 401 are fixed using the same groove. Figure 6 As shown in the image.

[0040] More specifically, in the preferred embodiment, one end of the reinforcing core groove 306 is connected to the optical cable sheath groove 304, and the other end does not extend to the end of the adhesive portion 302. Furthermore, it is also preferable that an overflow hole 308 communicating with the optical cable sheath groove 304 is provided axially at the end of the adhesive portion 302 opposite to the locking portion 301.

[0041] By using the overflow hole 308, it is possible to check whether there is any glue overflow, and thus determine whether the glue in the locking bushing 3 is full, thereby ensuring the reliability of the optical cable 4 end and the locking bushing 3 when glued and fixed.

[0042] More preferably, an installation positioning groove 108 is provided at the bottom of the fixed base 1 to match the positioning block at the installation position of the fixed base 1, so as to realize the quick positioning and installation of the fixed base 1.

[0043] In addition, to improve the compatibility of the device and the reliability of the end fixing, it is preferable to provide a crimping locking member 106 for crimping strip materials on the fixed end. In this case, the strip material (such as aramid, non-woven fabric and other covering materials) covered by the optical cable 4 can be crimped and locked by the crimping locking member 106.

[0044] In one specific embodiment, the crimping locking member 106 is disposed on the side of the fixed end away from the bushing recess 104. In this case, the crimping locking member 106 includes a pressure plate and a connector (e.g., a connecting screw). The connector passes through the pressure plate and is connected to the fixed end. Thus, the strip material can be wrapped around the outer periphery of the connector and then pressed against the surface of the fixed end by the pressure plate.

[0045] The aforementioned structure is particularly suitable for optical cables without a reinforcing core. In this case, the locking bushing 3 can be used without assembly. After the optical cable 4 is pressed and locked by the fixing block 2, the strip material covering the optical unit 401 can be pulled to the crimping locking member 106 and locked. The crimping locking member 106 and the combined strip material complete the tensile connection at the end of the optical cable 4, thereby ensuring the reliability of the fixed end of the optical cable 4.

[0046] Furthermore, for fixing the locking bushing 3 at the fixed end, at least one bushing limiting groove 105 is provided on the two side walls of the bushing insert groove 104 facing the second direction; wherein, the second direction is a horizontal direction perpendicular to the first direction. Correspondingly, a lateral limiting member 303 is provided on the outer periphery of the locking part 301, and the number and position of the lateral limiting members 303 correspond to the number and position of the bushing limiting grooves 105, so that when the locking part 301 is inserted into the bushing insert groove 104, the lateral limiting members 303 can be inserted into the corresponding bushing limiting grooves 105, for example... Figures 4-6 The limiting protrusion in the middle.

[0047] More preferably, in actual installation, the lateral limiting members 303 are multiple axially spaced. In this case, the bushing limiting grooves 105 are also preferably multiple axially spaced, so as to ensure the reliability of the axial fixation of the locking bushing 3.

[0048] Furthermore, in actual installation, the fixing block 2 and the fixing base 1 can preferably be detachably connected by multiple locking elements 202. For example, in such a case... Figure 1 In the preferred embodiment shown, the fixing block 2 is connected to the pressing end of the fixing base 1 by two locking elements 202 (specifically screws). At this time, two locking holes 102 are correspondingly formed on the top surface of the pressing end, such as... Figure 2 As shown in the image.

[0049] As another example, one end of the fixing block 2 is hinged to the fixing base 1, and the other end is connected by a locking member 202 (e.g., Figure 1 The screw shown Figure 2 The combination of screw holes shown is detachably connected to the fixed base 1.

[0050] For the device in the preferred embodiment, its usage is preferably as follows (preferably taking a laterally reinforced cable type as an example): The optical cable 4 to be fixed at the end is stripped at the end, and the optical unit 401 and the reinforcing core of the optical cable 4 are stripped out respectively. The length of the reinforcing core beyond the unstripped end of the optical cable 4 is reserved according to the length of the reinforcing core groove 306 in the locking bushing 3. The optical unit 401 is inserted into and exits the optical unit through hole 305 from one end of the locking part 301, and the reinforcing core is inserted into the reinforcing core groove 306 from one end of the locking part 301. Adhesive is injected into the locking bushing 3 until the bushing 3 is full. At this point, the unstripped end of the optical cable 4 is embedded in the optical cable sheath groove 304. After the adhesive in the locking bushing 3 cures, the following is obtained: Figure 7 The end structure is shown. Next, the locking bushing 3 is inserted into the bushing insertion groove 104, and the optical cable 4 on one side of the locking bushing 3 is placed in the first crimping groove 101. Then, the fixing block 2 is connected to the fixing base 1, and the fixing block 2 presses the optical cable 4 into the first crimping groove 101, completing the fixing of the end of the optical cable 4 on the fixing base 1. Finally, the fixing base 1 is installed at the corresponding optical cable setting position through multiple mounting holes 103, completing the end fixing of the optical cable 4 during use.

[0051] The device for fixing the end of optical cable in this utility model has a simple structure and is easy to use. It can reliably achieve multi-level fixing of the end of optical cable, ensuring that the end of optical cable can be fixed in multiple stages, providing sufficient tensile strength for the fixed end of optical cable, avoiding accidental pull-out of the end of optical cable, and realizing stable laying and use of optical cable. It has good practical value.

[0052] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for fixing the end of an optical cable, characterized in that, Includes a fixed base, a fixed pressure block, and a locking bushing; One end of the fixed base is a crimping end for crimping optical cables, and the other end is a fixing end for fixing locking bushings. The fixing end is located on one side of the crimping end in a first direction. The fixed base is provided with mounting parts, which are used for connecting and installing the fixed base on corresponding components. The fixing block is detachably connected to the crimping end and is used to press the optical cable onto the crimping end. The locking bushing includes a locking part and an adhesive part arranged coaxially; wherein, the locking part has an optical cable sheath groove, which can be connected to the fixed end, and the end of the optical cable held by the fixing block can be embedded and fixed in the optical cable sheath groove; the adhesive part has a through hole for optical unit and a reinforcing core groove, the through hole for optical unit to pass through in the optical cable, and the reinforcing core groove for accommodating the reinforcing core of the optical cable and realizing the adhesive fixation of the reinforcing core.

2. The device for fixing the end of an optical cable according to claim 1, characterized in that, The top surface of the crimping end is provided with a first crimping groove along a first direction; and / or, the side end face of the fixing block used to press the optical cable is provided with a second crimping groove; then the fixing block can press the optical cable into the corresponding crimping groove when connected to the crimping end.

3. The device for fixing the end of an optical cable according to claim 2, characterized in that, The inner wall surface of the first crimping groove and / or the second crimping groove is provided with a plurality of friction protrusions; and / or The mounting component has multiple mounting holes on the fixed end, so that the fixed base can be connected to the corresponding component through multiple connectors passing through the corresponding mounting holes. and / or The fixed end is also provided with a pressing and locking component for pressing and sealing strip materials.

4. The device for fixing the end of an optical cable according to any one of claims 1 to 3, characterized in that, A finite surface is formed at the junction of the crimping end and the fixed end; and The locking part has a bushing end face on the side opposite to the adhesive part, and the bushing end face can abut against the limiting surface when the locking part is connected to the fixed end.

5. The device for fixing the end of an optical cable according to claim 4, characterized in that, The limiting surface includes a base limiting surface located on one side of the crimping end and a pressing block limiting surface located on one side of the fixed pressing block; the pressing block limiting surface can be flush with the base limiting surface after the fixed pressing block is connected to the crimping end.

6. The device for fixing the end of an optical cable according to any one of claims 1 to 3 and 5, characterized in that, The top surface of the fixed end is provided with a bushing insertion groove, and the locking part can be embedded in the bushing insertion groove, thereby realizing the locking bushing relative to the fixed base in the first direction.

7. The device for fixing the end of an optical cable according to claim 6, characterized in that, At least one bushing limiting groove is provided on the two side walls directly opposite the bushing insertion groove along the second direction; wherein, the second direction is a horizontal direction perpendicular to the first direction; Accordingly, a lateral limiting member is provided on the outer periphery of the locking part, which can be embedded in the corresponding bushing limiting groove when the locking part is embedded in the bushing insertion groove.

8. The device for fixing the end of an optical cable according to any one of claims 1 to 3, 5, and 7, characterized in that, The axis of the optical unit through hole is arranged parallel to the axis of the reinforcing core groove, and the reinforcing core groove is provided on at least one side of the optical unit through hole in the radial direction. or The axis of the optical unit through hole is aligned with the axis of the reinforcing core groove.

9. The device for fixing the end of an optical cable according to claim 8, characterized in that, One end of the reinforcing core groove is connected to the optical cable sheath groove, and the other end does not extend to the end of the adhesive part; and the adhesive part is provided with an overflow hole that connects to the inner cavity of the adhesive part.

10. The device for fixing the end of an optical cable according to any one of claims 1 to 3, 5, 7, and 9, characterized in that, The fixed pressure block and the fixed base are detachably connected by multiple locking components; or One end of the fixed pressure block is hinged to the fixed base, and the other end can be detachably connected to the fixed base through a locking member.

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