Optical cable fixing clip

Abstract

This invention relates to the field of optical cable connection technology. The purpose of this invention is to provide an optical cable fixing clip to solve the technical problem of easy breakage of optical cables caused by relying on fixing plates to support them in the prior art. The optical cable fixing clip includes a fixing cylinder fixed to a fixing plate during use. The fixing cylinder has openings at both ends, and its extension direction is defined as the front-to-back direction. An elastic inner core is fixed inside the fixing cylinder. The elastic inner core has a through-hole for optical cable insertion and a spindle insertion hole located on one side of the optical cable insertion hole and arranged parallel to the optical cable insertion hole. The optical cable insertion holes correspond to the openings at both ends of the fixing cylinder, and the spindle insertion hole corresponds to at least one opening at the end of the fixing cylinder. The optical cable fixing clip also includes a spindle, which is used to be inserted into the spindle insertion hole and to compress the portion of the elastic inner core located between the optical cable insertion hole and the spindle insertion hole, thereby pressing the optical cable inside the optical cable insertion hole.

Description

Technical Field

[0001] This invention relates to the field of optical cable connection technology, and more specifically to an optical cable fixing clip. Background Technology

[0002] Temperature-sensing optical cables, as a novel temperature measurement tool, are increasingly widely used. A typical temperature-sensing optical cable consists of an internal temperature-sensing optical fiber and an external protective layer. The temperature-sensing mechanism of the optical fiber is based on the scattering effect, generating light with a wavelength longer than the light source wavelength and light with a wavelength shorter than the light source wavelength. The optical fiber is affected by external temperature, causing changes in the shorter wavelength light within the cable, thus providing an absolute temperature indication. This principle allows for temperature measurement along the area laid out with the optical cable. Therefore, temperature-sensing optical cables have become a popular new type of sensing optical cable in recent years, frequently used in thermal response and thermal tracer tests. However, since the temperature-sensing optical fiber is a sensitive component, the external protective layer should generally not be excessive to ensure effective temperature measurement. This results in relatively poor resistance to breakage or torsion in temperature-sensing optical cables.

[0003] When deploying and connecting temperature-sensing optical cables in a measurement area, two cables are typically laid out continuously and without interruption, so that if one fails, the other can still function normally. The connection and arrangement of the optical cables must ensure that there are no twists, bends, or joints between the two cables, and fusion splicing is strictly prohibited. However, when the optical cable deployment area is a narrow space or a long passageway, the connection and deployment of the temperature-sensing optical cable becomes a challenge. Existing technologies involve welding fixing plates at intervals to the side walls of the space or passageway, drilling holes in the fixing plates, and then threading the optical cable through these holes. The fixing plates provide support for the optical cable, but because they do not actually secure the cable, the cable remains slack and is prone to sag due to gravity, leading to bending or even breakage. Furthermore, after long-term use, the outer protective layer of the optical cable ages, and this aging layer can be easily cut by the walls of the holes in the fixing plates, causing the temperature-sensing optical cable to break and fail. Summary of the Invention

[0004] The purpose of this invention is to provide an optical cable fixing clip to solve the technical problem that optical cables are prone to breakage due to the reliance on fixing plates to support them in the prior art.

[0005] To achieve the above objectives, the technical solution of the optical cable fixing clip provided by the present invention is as follows:

[0006] A fiber optic cable fixing clip includes a fixing cylinder fixed to a fixing plate during use, with openings at both ends of the fixing cylinder, and the extension direction of the fixing cylinder is defined as the front-to-back direction; an elastic inner core is fixed inside the fixing cylinder, and the elastic inner core has a through-hole for fiber optic cable insertion and a spindle insertion hole located on one side of the fiber optic cable insertion hole and arranged parallel to the fiber optic cable insertion hole. The fiber optic cable insertion holes correspond to the openings at both ends of the fixing cylinder, and the spindle insertion hole corresponds to at least one opening at the end of the fixing cylinder. The fiber optic cable fixing clip also includes a spindle, which is used to be inserted into the spindle insertion hole and to squeeze the portion of the elastic inner core located between the fiber optic cable insertion hole and the spindle insertion hole to press the fiber optic cable inside the fiber optic cable insertion hole.

[0007] Beneficial effects: By setting a fixed cylinder and fixing it to a fixed plate, and fixing an elastic inner core inside the fixed cylinder, the optical cable passing through the fixed plate and into the elastic inner core can be squeezed by the elastic deformation of the elastic inner core. Compared with directly fixing the optical cable by inserting it into the holes of the fixed plate, the present invention tensions and fixes the optical cable between the two fixed plates in the arrangement area, preventing the optical cable from breaking due to slack and effectively protecting the optical cable. Because optical cables are relatively fragile, if only small-diameter optical cable insertion holes are provided on the elastic inner core, excessive force can easily cause the optical cable to break when the insertion holes are opened during insertion. Furthermore, the optical cable is not easily inserted into the small-diameter insertion holes. Therefore, this invention provides a spindle insertion hole parallel to the optical cable insertion hole on the elastic inner core. This eliminates the need to reduce the diameter of the optical cable insertion hole. The optical cable can be easily inserted into a larger-diameter or compatible optical cable insertion hole, and then the spindle can be inserted into the spindle insertion hole. This allows the spindle to compress the portion of the elastic inner core located between the optical cable insertion hole and the spindle insertion hole, thus tightening the optical cable. Insertion of the optical cable is easy and convenient, and it can be tensioned and fixed, preventing twisting, breakage, and wear during installation and arrangement. This effectively solves the technical problem of easy breakage of optical cables caused by relying on fixing plates to support them in existing technologies.

[0008] Preferably, the mandrel is a hollow shaft with an internal through hole for threading steel wires. The steel wires threaded through the mandrel's through hole serve to provide tension and load-bearing capacity. Because the mandrel is close to the optical cable, when an object falls or collides with the optical cable, the cable bends only slightly before the steel wires can withstand the force of the object. This prevents external forces such as falling objects or collisions from damaging or breaking the optical cable, thus improving the cable's service life and reliability.

[0009] Preferably, the mandrel has a serrated stepped groove on its outer periphery. The serrated stepped groove can increase the friction between the outer periphery of the mandrel and the wall of the mandrel through hole after the mandrel is inserted into the mandrel through hole, thus preventing the mandrel from coming out of the mandrel through hole.

[0010] Preferably, the end of the mandrel used for insertion into the mandrel insertion hole has a rounded corner on its outer periphery. The rounded corner of the mandrel end serves as an arc-shaped guide, facilitating the insertion of the mandrel into the mandrel insertion hole.

[0011] Preferably, the other end of the mandrel is provided with a baffle, which is used to stop and cooperate with the corresponding end face of the elastic inner core to limit the insertion limit of the mandrel. The baffle not only stops and cooperates with the end face of the corresponding end of the elastic inner core to determine whether the mandrel is inserted in place, but also provides a grip for the operator to facilitate the insertion and removal of the mandrel.

[0012] Preferably, the mandrel insertion hole is an oblong hole, and the optical cable insertion hole corresponds to the long side of the oblong hole. Compared with a round hole, the oblong hole can be stretched a greater distance after the mandrel is inserted, so that the mandrel insertion hole can produce greater elastic deformation and ensure the compression effect on the optical cable.

[0013] Preferably, the optical cable insertion holes are provided in two symmetrical arrangements on both sides of the spindle insertion hole. The optical cable insertion holes symmetrically arranged on both sides of the spindle insertion hole are directly squeezed by the deformation of the long side of the spindle insertion hole, which has a good effect on tightening and fixing the optical cable. Moreover, the squeezing force on the two spindle insertion holes is the same, which prevents uneven stress on the two optical cables.

[0014] Preferably, positioning grooves are provided on the two opposite long sides of the mandrel insertion hole. The positioning grooves are used to position the mandrel in conjunction with the mandrel. The positioning grooves prevent the mandrel from shifting along the long side of the waist-shaped hole and deviating from the center of the mandrel insertion hole, ensuring that a stable and direct compressive force is provided to the two optical cable insertion holes.

[0015] Preferably, the fixing cylinder includes a fixing cylinder body and a nut threaded onto the outside of the fixing cylinder body. The fixing cylinder body has an annular retaining flange extending radially inward, and the nut is used to press the elastic inner core against the annular retaining flange. The separate fixing cylinder facilitates the assembly and disassembly of the elastic inner core within the fixing cylinder. The annular retaining flange stops the elastic inner core within the fixing cylinder body, and the nut can lock the fixing cylinder body onto the fixing plate and press the elastic inner core tightly, resulting in a tight and stable threaded fit.

[0016] Preferably, the fixing cylinder body is provided with an outward-flared edge, which is used to insert into the through hole of the fixing plate. The outward-flared edge and the end face of the nut are used to clamp the fixing plate. The clamping of the fixing plate by the outward-flared edge and the nut ensures reliable connection and convenient and quick assembly and disassembly. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view (without the mandrel inserted) of the installation and mating of the optical cable fixing clip and fixing plate in Embodiment 1 of the present invention.

[0018] Figure 2 for Figure 1 Right view of the optical fiber cable fixing clip;

[0019] Figure 3 for Figure 1A cross-sectional view of the mandrel being inserted into the mandrel insertion hole of the optical fiber cable fixing clip;

[0020] Figure 4 for Figure 3 Right view of the optical fiber cable fixing clip;

[0021] Figure 5 for Figure 3 A schematic diagram of the structure after the temperature-sensing optical cable and steel wire are inserted into the optical cable fixing clip;

[0022] Figure 6 This is a cross-sectional view of the inner core of the optical cable fixing clip in Embodiment 1 of the present invention;

[0023] Figure 7 for Figure 6 Top view of the central spindle.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Fixed cylinder body; 2. Elastic inner core; 3. Nut; 4. External thread; 5. Outward flange; 6. Annular retaining flange; 7. Optical cable insertion hole; 8. Spindle insertion hole; 9. Fixing plate; 10. Spindle; 11. Baffle; 12. Annular gasket; 13. Steel wire; 14. Rounded corner; 15. Stepped groove; 16. Positioning groove; 17. Temperature-sensing optical cable; 18. Long plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0028] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising a…" does not exclude the process or method that includes said element.

[0029] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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, or they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the term "provided with" should be interpreted broadly. For example, the object "provided with" can be a part of the main body, or it can be separately arranged from the main body and connected to the main body. This connection can be a detachable connection or a non-detachable connection. Those skilled in the art can understand the specific meaning of the above terms in this invention through specific circumstances.

[0031] The present invention will be further described in detail below with reference to embodiments.

[0032] Specific embodiment 1 of the optical cable fixing clip provided by the present invention:

[0033] In this embodiment, the optical cable fixing clip can be connected and cooperated with the fixing plate on the side wall of its arrangement area during use, thereby fixing the temperature-sensing optical cable to the fixing plate. The optical cable fixing clip clamps and fixes the temperature-sensing optical cable, preventing the optical cable between the two fixing plates in the arrangement area from falling, twisting, or breaking due to slack and gravity. It plays the role of tensioning and fixing the temperature-sensing optical cable between two adjacent fixing plates and maintaining a stable connection of the optical cable.

[0034] like Figure 1 As shown, the optical cable fixing clip includes a fixing cylinder for fixing to the fixing plate 9. The extension direction of the fixing cylinder is defined as the front-to-back direction, and the fixing cylinder is a cylinder with open ends. Figure 1As shown, the fixing cylinder includes a fixing cylinder body 1 and a nut 3, which are separately fixed together. Both the fixing cylinder body 1 and the nut 3 have through-holes. The nut 3 is threaded onto the outside of the fixing cylinder body 1, and the outer circumference of the fixing cylinder body 1 is provided with external threads 4 that are adapted to the nut 3. An elastic inner core 2 is fixed in the inner hole of the fixing cylinder body 1. The elastic inner core 2 is provided with two optical cable insertion holes 7, which correspond to the openings at both ends of the fixing cylinder. The optical cable insertion holes 7 are used to allow two temperature-sensing optical cables to be inserted into the elastic inner core 2.

[0035] like Figure 1 As shown, the front end of the fixed cylinder body 1 is provided with an inwardly radially extending annular retaining flange 6, which is used to stop and cooperate with the elastic inner core 2 installed inside the fixed cylinder body 1. The rear end of the nut 3 is provided with an inwardly radially extending nut retaining flange, which is used to stop both the rear end of the fixed cylinder body 1 and the rear end of the elastic inner core 2, so that the elastic inner core 2 is assembled and fixed inside the fixed cylinder. In this embodiment, the front end of the fixed cylinder body 1 is also provided with an outwardly radially extending flange 5, which is used to insert the fixed cylinder body 1 into the through hole of the fixed plate 9, and the flange 5 is used to stop with the front end face of the fixed plate 9. Figure 1 As shown, the nut 3 is installed on the outer periphery of the rear end of the fixed cylinder body 1 after the fixed cylinder body 1 is inserted into the fixed plate 9. The front end face of the nut 3 extends to a position that fits against and stops the rear end face of the fixed plate 9. The outward flange 5 and the front end face of the nut 3 cooperate with each other to clamp the fixed plate 9 from front to back, so that the fixed cylinder is firmly fixed on the fixed plate 9.

[0036] like Figure 1 and Figure 2 As shown, the elastic inner core 2 is a block structure adapted to the inner hole of the fixed cylinder body 1. In this embodiment, the two optical cable insertion holes 7 on the elastic inner core 2 are parallel to each other, and a spindle insertion hole 8 is also provided between the two optical cable insertion holes 7, as shown. Figure 2 and Figure 4 As shown, the spindle insertion hole 8 is an oblong hole located at the center of the elastic inner core 2. Two optical cable insertion holes 7 correspond to and are symmetrically arranged on both sides of the long side of the oblong hole 8. In this embodiment, the optical cable fixing clip also includes a spindle 10 for insertion into the spindle insertion hole 8. The spindle 10 is used to press into the spindle insertion hole 8 and squeeze the portion of the elastic inner core 2 located between the optical cable insertion hole 7 and the spindle insertion hole 8, thereby securing the optical cable within the optical cable insertion hole 7. Figure 2 As shown, each of the two long sides of the optical cable insertion hole 7 is provided with a positioning groove 16 extending toward the optical cable insertion hole 7. The positioning groove 16 is used to cooperate with the mandrel 10 to position the mandrel 10, so that the mandrel 10 remains aligned with the two optical cable insertion holes 7 after being inserted into the optical cable insertion hole 7, so as to provide radial compressive force to the optical cable insertion hole 7 and the optical cable inserted therein.

[0037] like Figures 3 to 7As shown, the mandrel 10 is a cylindrical shaft extending front to back, with a through hole extending front to back inside. The outer diameter of the mandrel 10 is larger than the distance between the long sides of the mandrel mounting hole 8. Figure 6 and Figure 7 As shown, the outer circumference of the rear end of the mandrel 10 is provided with a fillet 14 to facilitate insertion of the mandrel 10 into the mandrel mounting hole 8. To prevent the mandrel 10 from dislodging from the mandrel mounting hole 8, the outer circumference of the mandrel 10 is evenly arranged with serrated stepped grooves 15 spaced at intervals to prevent the mandrel 10 from loosening under external force. Figure 7 As shown, the mandrel 10 has a baffle 11 at its front end. The baffle 11 is used to stop and cooperate with the front end face of the elastic inner core 2 to limit the insertion limit of the mandrel 10 into the mandrel insertion hole 8. The mandrel 10 also has a long plate 18 at its front end, perpendicular to the extending direction of the baffle 11. The long plate 18 and the baffle 11 cooperate to limit the insertion limit of the mandrel 10 and facilitate the removal of the mandrel 10 from the mandrel insertion hole 8. Figure 5 As shown, after the spindle 10 is fixed in the spindle mounting hole 8, a steel wire 13 is inserted into its inner hole to prevent external forces such as falling objects or collisions from directly acting on the optical cable, causing it to be damaged or broken.

[0038] like Figure 5 As shown, an annular gasket 12 is also provided between the outward flange 5 and the fixing plate 9. The annular gasket 12 is clamped by the front end face of the outward flange 5 and the fixing plate 9 to reduce the collision friction between the outward flange 5 and the fixing plate 9.

[0039] In this embodiment, the annular gasket 12 and the elastic inner core 2 are both rubber products resistant to marine environments, while the fixing cylinder body 1, nut 3, and mandrel 10 are all made of stainless steel. During installation, first, the elastic inner core 2 is inserted into the fixing cylinder body 1, then the fixing cylinder body 1 is inserted into the inner hole of the fixing plate 9, so that the front end of the fixing plate 9 and the outward-facing edge 5 are stopped, and the three through holes on the elastic inner core 2 extend horizontally front to back. Next, the nut 3 is tightened and fixed to the rear end of the fixing cylinder body 1. After the nut 3 is fixed, it stops against the rear end face of the fixing plate 9, thus fixing the optical cable fixing clip on the fixing plate 9. After the optical cable fixing clip is installed, as follows... Figure 5 As shown, the two temperature-sensing optical cables 17 are sequentially inserted into the two optical cable insertion holes 7. Finally, the mandrel 10 is inserted into the mandrel insertion hole 8 to clamp and fix the two temperature-sensing optical cables 17, thus completing the insertion of the temperature-sensing optical cables 17 into the fixing cylinder on the fixing plate 9. Finally, the steel wire 13 is inserted into the mandrel 10 to complete the overall installation of the temperature-sensing optical cables 17 and the optical cable fixing clips on the fixing plate 9.

[0040] In this embodiment, the optical cable fixing card is provided with two optical cable insertion holes 7, which are suitable for the arrangement of two temperature-sensing optical cables on the fixing plate 9 in the prior art. Of course, in other embodiments, the number of optical cable insertion holes in the elastic core can be increased or decreased. For example, only one optical cable insertion hole or four optical cable insertion holes are provided around the core shaft insertion hole, so that the optical cable fixing card can be used to connect and arrange different types and numbers of optical cables in the corresponding area.

[0041] In this embodiment, the optical cable fixing clip can be fixed to the fixing plate 9 by the fixing cylinder. The elastic inner core 2 and its inner core shaft insertion hole 8 and optical cable insertion hole 7 are set so that after the optical cable is inserted, the core shaft 10 can squeeze the elastic inner core 2 to deform, thereby clamping and fixing the optical cable. Inserting the core shaft 10 is convenient, safe and labor-saving, and can quickly realize the clamping and loosening of the temperature sensing optical cable 17. Inserting the steel wire 13 can also prevent external forces such as falling objects and collisions from acting on the optical cable, which will cause it to be damaged or broken. This effectively improves the service life and reliability of the optical cable and solves the technical problem of optical cable being easily broken due to the reliance on the fixing plate to support the optical cable in the prior art.

[0042] Specific embodiment 2 of the optical cable fixing clip provided by the present invention:

[0043] The difference from Embodiment 1 is that in Embodiment 1, the spindle insertion hole 8 passes through the elastic inner core 2, and the spindle insertion hole 8 corresponds to the openings at both ends of the fixing cylinder, and two optical cable insertion holes 7 are provided. In this embodiment, only one optical cable insertion hole can be provided, or the two optical cable insertion holes can be located on the same side of the spindle insertion hole. In this case, the opening at one end of the fixing cylinder is larger, and the opening at this end corresponds to both the optical cable insertion hole and the spindle insertion hole; the opening at the other end is smaller, and the opening at this end corresponds only to the optical cable insertion hole.

[0044] Specific embodiment 3 of the optical cable fixing clip provided by the present invention:

[0045] The difference from Embodiment 1 is that in Embodiment 1, the mandrel 10 is a hollow shaft with an internal through hole. In this embodiment, the mandrel is a solid structure, and the steel wire can be wound around both ends of the mandrel to provide tension and support. Of course, the steel wire can also be omitted.

[0046] Specific embodiment 4 of the optical cable fixing clip provided by the present invention:

[0047] The difference from Embodiment 1 is that, in Embodiment 1, the spindle mounting hole 8 is an oblong hole, and the optical cable mounting hole 7 corresponds to the long side of the oblong hole. In this embodiment, the spindle mounting hole is a circular hole. In other embodiments, the spindle mounting hole can also be an elliptical hole or a hole with a polygonal cross-section, such as a triangular hole or a rhomboid hole. However, regardless of the shape of the spindle mounting hole, it is necessary to ensure that the outer diameter of the spindle is larger than the diameter of the spindle mounting hole so that the spindle mounting hole can be opened.

[0048] Specific embodiment 5 of the optical cable fixing clip provided by the present invention:

[0049] The difference from Embodiment 1 is that, in Embodiment 1, there are two optical cable insertion holes 7, symmetrically arranged on both sides of the long side of the spindle insertion hole 8. In this embodiment, the spindle insertion hole is an oblong hole, and the optical cable insertion hole is located on the same side of the long side of the spindle insertion hole. In other embodiments, as long as the spindle can compress and fix the optical cable mounting hole and the optical cable inside after insertion, the spindle insertion hole and the optical cable insertion hole can also be arranged asymmetrically and arbitrarily at intervals on the elastic core.

[0050] Specific embodiment 6 of the optical cable fixing clip provided by the present invention:

[0051] The difference from Embodiment 1 is that in Embodiment 1, the fixing cylinder includes a fixing cylinder body 1 and a nut 3 threaded onto the outside of the fixing cylinder body 1. The fixing cylinder body 1 has an annular retaining flange 6 extending radially inward. In this embodiment, the fixing cylinder is an integral cylindrical structure with an internal through hole. After the fixing cylinder passes through the through hole in the fixing plate, it is fixed to the fixing plate by a threaded connection. In other embodiments, the annular retaining flange can be omitted, and the elastic inner core can be embedded or glued inside the fixing cylinder. Alternatively, the shape and structure of the nut can also be changed. For example, the nut can be set as a retaining ring with an internal thread, which is screwed onto the outer circumference of the fixing cylinder body and stops against the fixing plate. In other different embodiments, the fixing cylinder can also be connected to the fixing plate by welding, bonding, clamping, etc. In this case, the fixing cylinder can be a split structure or only have a fixing cylinder body.

[0052] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fiber optic cable fixing clip, characterized in that, The device includes a fixed cylinder that is fixed to a fixed plate (9) during use. The fixed cylinder has openings at both ends, and the extension direction of the fixed cylinder is defined as the front-to-back direction. An elastic inner core (2) is fixed inside the fixed cylinder. The elastic inner core (2) has a through-hole (7) for optical cable insertion and a spindle insertion hole (8) located on one side of the optical cable insertion hole (7) and arranged parallel to the optical cable insertion hole (7). The diameter of the optical cable insertion hole (7) is larger than or matched with the diameter of the optical cable, so as to realize the effortless insertion of the optical cable in the optical cable insertion hole (7). The optical cable insertion holes (7) correspond to the openings at both ends of the fixed cylinder. The spindle insertion hole (8) 8) The openings at both ends of the fixed cylinder correspond to and penetrate the elastic inner core. The core shaft insertion hole is a waist-shaped hole, and the optical cable insertion hole corresponds to the long side of the waist-shaped hole. The optical cable fixing clip also includes a core shaft (10). The outer diameter of the core shaft is larger than the long side spacing of the core shaft insertion hole. The core shaft (10) is used to squeeze into the core shaft insertion hole (8) and squeeze the part of the elastic inner core (2) located between the optical cable insertion hole (7) and the core shaft insertion hole (8) to press the optical cable in the optical cable insertion hole (7). The two opposite long sides of the core shaft insertion hole are provided with positioning grooves (16). The positioning grooves are used to cooperate with the core shaft to position the core shaft.

2. The optical cable fixing clip according to claim 1, characterized in that, The mandrel (10) is a hollow shaft with an internal through hole, and the through hole of the mandrel (10) is used to thread the steel wire (13).

3. The optical cable fixing clip according to claim 2, characterized in that, The mandrel (10) has a serrated stepped groove (15) on its outer periphery.

4. The optical cable fixing clip according to claim 3, characterized in that, The mandrel (10) has a rounded corner (14) on the outer periphery of the end used to insert into the mandrel insertion hole (8).

5. The optical cable fixing clip according to claim 4, characterized in that, The other end of the mandrel (10) is provided with a baffle (11), which is used to stop and cooperate with the corresponding end face of the elastic inner core (2) to limit the penetration limit of the mandrel (10).

6. The optical cable fixing clip according to claim 1, characterized in that, The optical cable insertion hole (7) is provided in two and is symmetrically arranged on both sides of the spindle insertion hole (8).

7. The optical cable fixing clip according to any one of claims 1-5, characterized in that, The fixed cylinder includes a fixed cylinder body (1) and a nut (3) threaded onto the outside of the fixed cylinder body (1). The fixed cylinder body (1) is provided with an annular flange (6) extending radially inward. The nut (3) is used to press the elastic inner core (2) onto the annular flange (6).

8. The optical cable fixing clip according to claim 7, characterized in that, The fixed cylinder body (1) is provided with an outward flange (5). The fixed cylinder body (1) is used to be inserted into the through hole of the fixed plate (9). The outward flange (5) and the end face of the nut (3) are used to clamp the fixed plate (9).

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