Flame-retardant fireproof photoelectric composite cable with protection structure
By laying a protective sleeve structure outside the main body of the photoelectric composite cable, including the installation of casing and limiting ring, the problem of bending degree of the photoelectric composite cable exceeding the limit is solved, and the bending degree protection and bending limit of the optical fiber are achieved, which improves the effectiveness of the device.
Patent Information
- Application Number
- CN202421668102.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-15
AI Technical Summary
Existing flame-retardant and fire-resistant photoelectric composite cables can easily cause the optical fiber to bend beyond the limit when bending, resulting in transmission failure or damage.
A flame-retardant and fire-resistant photoelectric composite cable with a protective structure is designed. By laying a protective sleeve structure outside the main body of the photoelectric composite cable, including the installation sleeve and the limit ferrule, a gap is reserved between adjacent limit ferrule to limit the bending of the photoelectric composite cable, and a buffer protection area is provided with the help of the reinforcement sleeve.
It effectively avoids the bending degree of the photoelectric composite cable exceeding the limit, prevents optical fiber transmission failure or damage, and provides bending limit and buffer protection, improving the effectiveness of the device.
Smart Images
Figure CN222867284U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optoelectronic composite cables, and more specifically to a flame-retardant and fireproof optoelectronic composite cable with a protective structure. Background Art
[0002] Optoelectronic composite cable refers to a transmission line suitable for broadband access network systems. It is a new type of access method that integrates optical fiber and power transmission copper wire. It can solve the problems of broadband access, equipment power consumption, and signal transmission. Optoelectronic composite cable is usually jacketed with LSZH material. LSZH material has good flame retardant and fireproof properties. Therefore, optoelectronic composite cable has good flame retardant and fireproof properties.
[0003] The existing flame-retardant and fireproof optoelectronic composite cable contains optical fiber, which cannot be bent too much when in use. Therefore, when the optoelectronic composite cable is in use, if the optoelectronic composite cable is bent too much, it is easy to cause the bending degree of the optical fiber to exceed the limit, which can easily cause transmission failure of the optical fiber. In view of this, we propose a flame-retardant and fireproof optoelectronic composite cable with a protective structure. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a flame retardant and fireproof optical fiber composite cable with a protective structure to solve the technical problem that the current flame retardant and fireproof optical fiber composite cable is too bent, causing internal optical fiber transmission failure or even damage.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a flame-retardant and fireproof optoelectronic composite cable with a protective structure, comprising an optoelectronic composite cable body, a protective sleeve structure is arranged outside the optoelectronic composite cable body, the protective sleeve structure comprises an installation sleeve and a limiting ring, the installation sleeve is sleeved on the outside of the optoelectronic composite cable body, the limiting rings are equidistantly arranged on the surface of the installation sleeve, and gaps are reserved between adjacent limiting rings;
[0006] A reinforcement sleeve is arranged between adjacent limiting rings, the outer surface of the reinforcement sleeve is a circular surface, the inner surface of the reinforcement sleeve is a semicircular surface, the inner wall cavity of the reinforcement sleeve is a semicircular cavity, and a gap is reserved between the inner wall of the reinforcement sleeve and the outer wall of the mounting sleeve.
[0007] The utility model designs a protective sleeve structure outside the main body of the optoelectronic composite cable, wherein the installation sleeve in the protective sleeve structure is sleeved on the main body of the optoelectronic composite cable, and then a plurality of groups of limit rings are arranged at equal intervals on the surface of the installation sleeve, and gaps are reserved between adjacent limit rings. Therefore, when the main body of the optoelectronic composite cable is bent, the limit rings on the bending side will be close to each other. When the main body of the optoelectronic composite cable is bent to a certain degree, the adjacent limit rings will press against each other, so that the main body of the optoelectronic composite cable cannot continue to bend, thereby achieving the effect of limiting the curvature of the main body of the optoelectronic composite cable, avoiding the curvature of the main body of the optoelectronic composite cable exceeding the curvature limit of the internal optical fiber core, thereby causing transmission failure or even damage to the optical fiber core. The body is bent, and during the process of contact and fixing of two adjacent groups of limit rings, the reinforcement sleeve is squeezed and deformed inwardly at the same time, and the inner wall of the reinforcement sleeve will be pressed against the outer wall of the installation sleeve. With continuous bending, the contact area between the inner wall of the reinforcement sleeve and the outer wall of the installation sleeve will become larger and larger, and the required external bending force on the main body of the optoelectronic composite cable will become larger and larger. This process can be used as a buffer area. With the increase of force, personnel can know in time that the bending degree of the main body of the optoelectronic composite cable is close to the limit. Therefore, the reinforcement sleeve can assist the limit ring to make a buffer protection area for the bending of the main body of the optoelectronic composite cable, so that the bending limiting effect of the main body of the optoelectronic composite cable is better, and after losing the external bending force, the reinforcement sleeve can also assist the main body of the optoelectronic composite cable to better straighten and reset, thereby further improving the use effect of the device.
[0008] Preferably, the optoelectronic composite cable body comprises a reinforcing core, and optical fiber structures and cables are arranged around the reinforcing core. The optical fiber structures and cables are arranged in three groups each, and the optical fiber structures and cables are evenly spaced around the reinforcing core.
[0009] Preferably, the optical fiber structure and cable are externally covered with a yarn sheath, the yarn sheath is filled with water-blocking cable paste, the yarn sheath is externally covered with a plastic-coated aluminum tape sheath, and the plastic-coated aluminum tape sheath is externally covered with an LSZH outer sheath.
[0010] Preferably, the optical fiber structure comprises a loose tube, a plurality of optical fiber cores are arranged inside the loose tube, and the loose tube is filled with water-blocking fiber paste.
[0011] Preferably, the cable comprises a battery core and an insulating sleeve, and the insulating sleeve is wrapped around the outside of the battery core.
[0012] Preferably, a plurality of groups of reset rods are equidistantly arranged on both sides of the semicircular cavity, and the reset rods on both sides of the semicircular cavity are symmetrically arranged, the reset rods have curvature, and the reset rods on both sides of the semicircular cavity are relatively curved.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. The utility model designs a protective sleeve structure outside the optoelectronic composite cable body, the installation sleeve in the protective sleeve structure is sleeved on the optoelectronic composite cable body, and then a plurality of groups of limit rings are arranged at equal intervals on the surface of the installation sleeve, and gaps are reserved between adjacent limit rings. Therefore, when the optoelectronic composite cable body is bent, the limit rings on the bending side will be close to each other. When the optoelectronic composite cable body is bent to a certain degree, the adjacent limit rings will press against each other, so that the optoelectronic composite cable body cannot continue to bend, thereby achieving the effect of limiting the curvature of the optoelectronic composite cable body, avoiding the curvature of the optoelectronic composite cable body exceeding the bending limit of the internal optical fiber core, thereby causing transmission failure or even damage to the optical fiber core, and solving the technical problem that the internal optical fiber transmission fails or even is damaged due to excessive bending of the current flame-retardant and fire-proof optoelectronic composite cable. Therefore, the utility model has the advantage of protecting the curvature of the optical fiber.
[0015] 2. The utility model also provides a reinforcing sleeve between two adjacent groups of limiting rings, the outer surface of the reinforcing sleeve is a circular surface as a whole, the inner surface of the reinforcing sleeve is a semicircular structure, the inner wall cavity of the reinforcing sleeve is a semicircular cavity, and a gap is reserved between the inner wall of the reinforcing sleeve and the outer wall of the installation sleeve. Therefore, when the optoelectronic composite cable body is bent and the two adjacent groups of limiting rings contact and fix, the reinforcing sleeve is squeezed and deformed inwardly at the same time, and the inner wall of the reinforcing sleeve will press against the outer wall of the installation sleeve. With continuous bending, the contact area between the inner wall of the reinforcing sleeve and the outer wall of the installation sleeve will become larger and larger, and the required external bending force on the optoelectronic composite cable body will become larger and larger. This process can be used as a buffer area. With the increase of force, personnel can know in time that the bending degree of the optoelectronic composite cable body is close to the limit. Therefore, the reinforcing sleeve can assist the limiting ring to make a buffer protection area for the bending of the optoelectronic composite cable body, so that the bending limiting effect of the optoelectronic composite cable body is better, and after losing the external bending force, the reinforcing sleeve can also assist the optoelectronic composite cable body to better straighten and reset, thereby further improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the main structure of the optoelectronic composite cable of the utility model;
[0018] Figure 3 This is a schematic diagram of the protective cover structure of the utility model;
[0019] Figure 4 It is a schematic cross-sectional view of the protective cover structure of the utility model;
[0020] Figure 5 For the utility model Figure 4 Enlarged schematic diagram at point A in the middle.
[0021] Description of the numbers in the figure:
[0022] 1. Optical-electric composite cable body; 2. Strengthening core; 3. Optical fiber structure; 301. Optical fiber core; 302. Loose tube; 303. Water-blocking fiber paste; 4. Cable; 401. Battery core; 402. Insulating tube; 5. Gauze sleeve; 6. Plastic-coated aluminum tape sleeve; 7. LSZH outer sheath; 8. Water-blocking cable paste; 9. Protective sleeve structure; 10. Installation sleeve; 11. Limiting ring; 12. Strengthening sleeve; 1201. Round surface; 1202. Semicircular; 1203. Semicircular cavity; 1204. Reset rod. DETAILED DESCRIPTION
[0023] like Figures 1 to 5 As shown, the utility model relates to a flame-retardant and fireproof optoelectronic composite cable with a protective structure, comprising an optoelectronic composite cable main body 1, a protective sleeve structure 9 is arranged on the outside of the optoelectronic composite cable main body 1, the protective sleeve structure 9 comprises an installation sleeve 10 and a limiting ring 11, the installation sleeve 10 is sleeved on the outside of the optoelectronic composite cable main body 1, the limiting rings 11 are equidistantly arranged on the surface of the installation sleeve 10, and gaps are reserved between adjacent limiting rings 11, when the optoelectronic composite cable main body 1 is bent, the limiting rings 11 on the bending side will be close to each other, when the optoelectronic composite cable main body 1 is bent to a certain extent, the adjacent limiting rings 11 will press against each other, so that the optoelectronic composite cable main body 1 cannot continue to bend, so as to achieve the effect of limiting the curvature of the optoelectronic composite cable main body 1, and avoid the curvature of the optoelectronic composite cable main body 1 exceeding the bending limit of the internal optical fiber core 301, thereby causing transmission failure or even damage to the optical fiber core 301.
[0024] Specifically, the optoelectronic composite cable body 1 includes a reinforcing core 2, and an optical fiber structure 3 and a cable 4 are arranged around the reinforcing core 2. There are three groups of optical fiber structures 3 and cables 4, and the optical fiber structures 3 and cables 4 are evenly distributed around the reinforcing core 2. The reinforcing core 2 is used to enhance the tensile strength of the optoelectronic composite cable body 1, and the optical fiber structure 3 and the cable 4 are used to transmit optoelectronic information.
[0025] Furthermore, the outside of the optical fiber structure 3 and the cable 4 is covered with a yarn sheath 5, the inside of the yarn sheath 5 is filled with a water-blocking cable paste 8, the outside of the yarn sheath 5 is covered with a plastic-coated aluminum tape sheath 6, and the outside of the plastic-coated aluminum tape sheath 6 is covered with an LSZH outer sheath 7. The yarn sheath 5 is used to wrap the reinforcing core 2, the optical fiber structure 3 and the cable 4. The main function of the water-blocking cable paste 8 is to prevent water or other fluids from flowing into or migrating into the optoelectronic composite cable body 1, and provide good waterproof buffering and other functions for the optoelectronic composite cable body 1. The plastic-coated aluminum tape sheath 6 improves the moisture-proof ability of the optoelectronic composite cable body 1, enhances the mechanical strength of the optoelectronic composite cable body 1, and also enhances the overall performance and reliability of the optoelectronic composite cable body 1 through the synergistic effect with other protective measures. The LSZH outer sheath 7 has anti-ultraviolet radiation performance and environmental stress cracking resistance, thereby ensuring the service life of the optoelectronic composite cable body 1. The LSZH outer sheath 7 has good flame retardant properties, so the optoelectronic composite cable body 1 has flame retardant and fireproof properties.
[0026] Furthermore, the optical fiber structure 3 includes a loose tube 302, several groups of optical fiber cores 301 are arranged inside the loose tube 302, and the loose tube 302 is filled with a water-blocking fiber paste 303. The loose tube 302 material has good hydrolysis resistance and lateral pressure resistance. The loose tube 302 is filled with a thixotropic water-blocking fiber paste 303 to provide buffering protection for the optical fiber core 301 and achieve full-section water blocking in the loose tube 302.
[0027] It is worth noting that the cable 4 includes a battery core 401 and an insulating sleeve 402 . The insulating sleeve 402 is wrapped around the outside of the battery core 401 , and the insulating sleeve 402 provides insulation protection for the battery core 401 .
[0028] In an embodiment of the utility model, a reinforcing sleeve 12 is arranged between adjacent limiting rings 11, the outer surface of the reinforcing sleeve 12 is a circular surface 1201, the inner surface of the reinforcing sleeve 12 is a semicircular surface 1202, the inner wall cavity of the reinforcing sleeve 12 is a semicircular cavity 1203, and a gap is reserved between the inner wall of the reinforcing sleeve 12 and the outer wall of the mounting sleeve 10. When the main body 1 of the optoelectronic composite cable is bent and two adjacent groups of limiting rings 11 are in contact and fixed, the reinforcing sleeve 12 is squeezed and deformed inwardly at the same time, and the inner wall of the reinforcing sleeve 12 will be pressed against the outer wall of the mounting sleeve 10. As the bending continues, the inner wall of the reinforcing sleeve 12 and the mounting sleeve 10 are connected. The contact surface of the outer wall 10 will become larger and larger, and the required external bending force on the optoelectronic composite cable body 1 will also become larger and larger. This process can be used as a buffer area. As the force increases, personnel can promptly know that the bending degree of the optoelectronic composite cable body 1 is close to the limit. Therefore, the reinforcement sleeve 12 can assist the limiting ring 11 to make the bending of the optoelectronic composite cable body 1 have a buffer protection area, so that the bending limiting effect of the optoelectronic composite cable body 1 is better, and after the external bending force is lost, the reinforcement sleeve 12 can also assist the optoelectronic composite cable body 1 to better straighten and reset, thereby further improving the use effect of the device.
[0029] Specifically, a plurality of groups of reset rods 1204 are equidistantly arranged on both sides of the semicircular cavity 1203, and the reset rods 1204 on both sides of the semicircular cavity 1203 are symmetrically arranged. The reset rods 1204 have a curvature, and the reset rods 1204 on both sides of the semicircular cavity 1203 are relatively bent. The reset rods 1204 and the reinforcement sleeve 12 are both made of rubber and have an elastic reset effect. When the reinforcement sleeve 12 is bent, the two groups of reset rods 1204 will bend relative to each other, pulling the outer surface of the reinforcement sleeve 12 to bend inward. When the external force is lost, the reset rods 1204 are reset, and the reset effect of the reinforcement sleeve 12 itself can assist the optoelectronic composite cable body 1 to better straighten and reset.
[0030] Working principle: This embodiment provides a flame-retardant and fireproof optoelectronic composite cable with a protective structure. First, when the optoelectronic composite cable body 1 is bent, the limiting rings 11 on the bending side will be close to each other. When the optoelectronic composite cable body 1 is bent to a certain extent, the adjacent limiting rings 11 will press against each other, so that the optoelectronic composite cable body 1 cannot continue to bend, thereby achieving the effect of limiting the bending degree of the optoelectronic composite cable body 1, and preventing the bending degree of the optoelectronic composite cable body 1 from exceeding the bending limit of the internal optical fiber core 301, thereby causing a transmission failure or even damage to the optical fiber core 301.
[0031] Secondly, when the optoelectronic composite cable body 1 is bent and two adjacent groups of limiting ferrules 11 are in contact and fixed, the reinforcing sleeve 12 is squeezed and deformed inward at the same time, and the inner wall of the reinforcing sleeve 12 will press against the outer wall of the installation sleeve 10. As the bending continues, the contact area between the inner wall of the reinforcing sleeve 12 and the outer wall 10 of the installation sleeve will become larger and larger, and the required external bending force on the optoelectronic composite cable body 1 will also become larger and larger. This process can be used as a buffer area. As the force increases, personnel can know in time that the bending degree of the optoelectronic composite cable body 1 is close to the limit. Therefore, the reinforcing sleeve 12 can assist the limiting ferrule 11 to make a buffer protection area for the bending of the optoelectronic composite cable body 1, so that the bending limiting effect of the optoelectronic composite cable body 1 is better, and after losing the external bending force, the reinforcing sleeve 12 can also assist the optoelectronic composite cable body 1 to straighten and reset, further improving the use effect of the device, and the reset rod 1204 will also reset, and cooperate with the self-resetting effect of the reinforcing sleeve 12, it can assist the optoelectronic composite cable body 1 to better straighten and reset.
[0032] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.
Claims
1. A flame-retardant and fireproof optical-electric composite cable with a protective structure, characterized in that: The invention comprises an optoelectronic composite cable body (1), wherein a protective sleeve structure (9) is arranged outside the optoelectronic composite cable body (1), wherein the protective sleeve structure (9) comprises a mounting sleeve (10) and a limiting ring (11), wherein the mounting sleeve (10) is sleeved outside the optoelectronic composite cable body (1), and the limiting rings (11) are arranged equidistantly on the surface of the mounting sleeve (10), and gaps are reserved between adjacent limiting rings (11); A reinforcing sleeve (12) is arranged between adjacent limiting rings (11); the outer surface of the reinforcing sleeve (12) is a circular surface (1201); the inner surface of the reinforcing sleeve (12) is a semicircular surface (1202); the inner wall cavity of the reinforcing sleeve (12) is a semicircular cavity (1203); and a gap is reserved between the inner wall of the reinforcing sleeve (12) and the outer wall of the mounting sleeve (10).
2. The flame-retardant and fireproof optical-electric composite cable with a protective structure according to claim 1, characterized in that: The optical-electric composite cable body (1) comprises a reinforcing core (2), and optical fiber structures (3) and cables (4) are arranged around the reinforcing core (2). The optical fiber structures (3) and cables (4) are three groups each, and the optical fiber structures (3) and cables (4) are evenly spaced and distributed around the reinforcing core (2).
3. The flame-retardant and fireproof optical-electric composite cable with a protective structure according to claim 2, characterized in that: The optical fiber structure (3) and the cable (4) are externally sheathed with a yarn sheath (5), the interior of the yarn sheath (5) is filled with a water-blocking cable paste (8), the exterior of the yarn sheath (5) is sheathed with a plastic-coated aluminum tape sheath (6), and the exterior of the plastic-coated aluminum tape sheath (6) is sheathed with an LSZH outer sheath (7).
4. The flame-retardant and fireproof optical-electric composite cable with a protective structure according to claim 2, characterized in that: The optical fiber structure (3) comprises a loose tube (302), a plurality of groups of optical fiber cores (301) are arranged inside the loose tube (302), and the loose tube (302) is filled with water-blocking fiber paste (303).
5. The flame-retardant and fireproof optical-electric composite cable with a protective structure according to claim 2, characterized in that: The cable (4) comprises a battery core (401) and an insulating sleeve (402), wherein the insulating sleeve (402) is wrapped around the outside of the battery core (401).
6. The flame-retardant and fireproof optical-electric composite cable with a protective structure according to claim 1, characterized in that: A plurality of groups of reset rods (1204) are arranged equidistantly on both sides of the semicircular cavity (1203), and the reset rods (1204) on both sides of the semicircular cavity (1203) are arranged symmetrically. The reset rods (1204) have curvature, and the reset rods (1204) on both sides of the semicircular cavity (1203) are relatively curved.