Anti-oxidation flame-retardant optical cable

Abstract

The utility model relates to the technical field of flame-retardant optical cables, in particular to an anti-oxidation flame-retardant optical cable, which comprises a protective sleeve I and a protective sleeve II, optical cable sleeves are fixedly mounted in the protective sleeve I and the protective sleeve II, a plurality of optical fibers are fixedly mounted in the optical cable sleeves, and the optical fibers are fixedly mounted in the protective sleeve II. A plurality of optical fibers are arranged in the optical cable sleeve, filling bodies are filled between the inside of the optical cable sleeve and the plurality of optical fibers, protection mechanisms are arranged between the protection sleeve I and the optical cable sleeve and between the protection sleeve II and the optical cable sleeve, and a connecting mechanism is arranged between the outer walls of the protection sleeve I and the protection sleeve II. The optical cable connector is provided with the connection mechanism, so that external moisture can be well isolated, oxidation caused by contact with the optical fibers is avoided, connection of two optical cables can be conveniently completed through the connection mechanism, the sealing performance between the two optical cables can be improved, and external moisture is effectively prevented from entering the optical cables from the connection position.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of flame -retardant optical cable, specifically is a kind of antioxidant flame -retardant optical cable. BACKGROUND

[0002] Flame -retardant optical cable is made of flame -retardant polyethylene sheath material instead of ordinary optical cable polyethylene sheath material, so that the optical cable has flame -retardant performance, and the structure size, transmission performance, machinery and environment are the same as ordinary optical cable, the center of cable core is a phosphorized steel wire or steel wire rope extruded with polyethylene, the loose sleeve is twisted around the center reinforcing core into compact and circular cable core, and the gap in the cable core is filled with water-blocking filler.

[0003] In the prior art, such as patent application number "CN202021639514.9" proposes a kind of high-strength antioxidant optical cable, the utility model is protected by the buffer layer, so that the optical cable can effectively protect optical cable core from being damaged when being extruded by external force, so as to ensure its normal use performance, and its structure is simple, easy to realize, by setting up external protective layer, so that the optical cable can have better self-protection ability when in use.

[0004] But in the above patent application, only a single buffer layer is provided to protect the optical cable core, which cannot effectively isolate external moisture, so that external moisture can easily enter, causing oxidation of the optical cable core, and when two optical cables are connected well, external connecting pieces are needed for connection, but when connected with external connecting pieces, gaps are likely to occur at the connection between the optical cables, which is difficult to ensure the sealing property, so that external moisture enters from the gaps, also causing oxidation inside the optical cable. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of antioxidant flame -retardant optical cable to solve the problems raised in the above background.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] A kind of antioxidant flame -retardant optical cable, including protective sleeve one and protective sleeve two, the protective sleeve one and protective sleeve two inside are fixedly installed with optical cable cover, the optical cable cover inside is fixedly installed with a plurality of optical fibers, the optical cable cover inside and a plurality of optical fibers are filled with filling body, the protective sleeve one and optical cable cover and the protective sleeve two and optical cable cover are all provided with protection mechanism, and the protective sleeve one and the protective sleeve two outer wall are provided with connecting mechanism;

[0008] The protection mechanism includes protective sleeve three, the protective sleeve three is fixedly installed between optical cable cover and protective sleeve one position, the protective sleeve three one end is provided with cavity, the protective sleeve three is inserted with sponge layer inside, and the protective sleeve three outer side wall is provided with through slot.

[0009] Preferably, the sponge layer is arranged around the position between the protective sleeve three and the protective sleeve one through the through slot at both ends, the inner wall of the protective sleeve three is fixedly connected with a plurality of elastic sheets, and one end of each of the plurality of elastic sheets is fixedly connected with the protective sleeve three.

[0010] Preferably, the connecting mechanism comprises a connecting head one and a connecting head two, the connecting head one is fixedly connected with the outer wall of the protective sleeve one, the connecting head two is fixedly connected with the outer wall of the protective sleeve two, and the outer wall of the connecting head one is fixedly connected with an annular plate.

[0011] Preferably, the outer side wall of the annular plate is provided with an annular insertion slot, the inner wall of the annular insertion slot is provided with an inner annular groove, and two grooves are formed in the outer wall of the annular plate and close to the edge of the annular insertion slot.

[0012] Preferably, two trapezoidal blocks are fixedly installed on the outer side wall of the connecting head two and close to one end of the connecting head one, the trapezoidal blocks are matched with the grooves, and two U-shaped frames are fixedly installed on the outer side wall of the annular plate.

[0013] Preferably, an insertion rod is inserted into the upper end of each of the two U-shaped frames, vertical grooves are formed in the two outer side walls of the U-shaped frames, sliding rods are fixedly installed in the two vertical grooves, T-shaped blocks are sleeved on the outer sides of the two sliding rods, one end of each of the two T-shaped blocks is fixedly connected with the insertion rod, a reset spring is sleeved on the outer side of the sliding rod and above the T-shaped block, one end of the reset spring is fixedly connected with the inner wall of the vertical groove, and the other end of the reset spring is fixedly connected with the T-shaped block.

[0014] Preferably, an insertion hole is formed in the upper end surface of the trapezoidal block and matched with the insertion rod, an annular shell is fixedly connected with the outer side wall of the connecting head two, an annular rubber pad is inserted into the annular shell, and a plurality of supporting springs are installed between the outer side wall of the annular rubber pad and the inner wall of the annular shell.

[0015] The utility model discloses the beneficial effect:

[0016] 1, the utility model discloses the protective sleeve three can protect the optical cable cover to the protection of optical fiber, and the sponge layer protection of the protective mechanism three outer wall and inside is wrapped and protected, and the water absorption of the sponge layer is cooperated, can enhance the waterproof effect of the protective sleeve three to the optical fiber, and the protective sleeve one is wrapped and protected to the outer wall of the sponge layer again, thereby can the moisture of outside be isolated well, avoid contacting with the optical fiber, cause the oxidation to occur.

[0017] 2、The utility model discloses, through the connecting head two in connecting mechanism one end is inserted into annular slot, and through the cooperation of trapezoidal block and insertion rod, can fix the position between connecting head two and annular plate, thereby connecting connecting head two with connecting head one, need not help outside connecting piece, can conveniently complete the connection of two optical cables, and through annular rubber pad cooperation support spring, can fill the interstice between connecting head one and connecting head two well, improve the sealing property of two optical cable junctions, effectively avoid the moisture from the junction into the inside of optical cable, cause oxidation damage. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, for ordinary skilled person in the art, under the premise of not paying creative labor, still can obtain other drawing according to these drawings;

[0019] Figure 1 It is the overall structure schematic diagram of the utility model;

[0020] Figure 2 It is the local structure schematic diagram of the utility model;

[0021] Figure 3 It is the structure schematic diagram of connecting head one and connecting head two in the utility model;

[0022] Figure 4 It is the structure schematic diagram of connecting head one and connecting head two in the utility model;

[0023] Figure 5 It is the sectional view of annular plate in the utility model;

[0024] Figure 6 It is the sectional view of annular shell in the utility model;

[0025] Figure 7 It is the structure schematic diagram of connecting head one and annular plate in the utility model;

[0026] Figure 8 It is the structure schematic diagram of connecting head one and annular plate in the utility model; Figure 7 The enlarged view of A in the utility model.

[0027] The reference signs in the drawing are as follows:

[0028] 1, the protective sleeve one; 2, the protective sleeve two; 3, the connector one; 4, the connector two; 5, the optical cable sleeve; 6, the optical fiber; 7, the filler; 8, the protective sleeve three; 9, the cavity; 10, the elastic sheet; 11, the sponge layer; 12, the slot; 13, the annular plate; 14, the recess; 15, the annular slot; 16, the inner ring groove; 17, the U-shaped frame; 18, the insertion rod; 20, the T-shaped block; 21, the trapezoidal block; 22, the annular shell; 23, the annular rubber pad; 24, the sliding rod. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] An antioxidant flame-retardant optical cable, comprising a protective sleeve one 1 and a protective sleeve two 2, the protective sleeve one 1 and the protective sleeve two 2 are internally fixedly installed with an optical cable sleeve 5, the optical cable sleeve 5 is internally fixedly installed with a plurality of optical fibers 6, the optical cable sleeve 5 is filled with a filler 7 between the inside and the plurality of optical fibers 6, the protective sleeve one 1 and the optical cable sleeve 5 and the protective sleeve two 2 and the optical cable sleeve 5 are provided with a protection mechanism, the protective sleeve one 1 and the protective sleeve two 2 are provided with a connecting mechanism between the outer walls, the protection mechanism comprises a protective sleeve three 8, the protective sleeve three 8 is fixedly installed between the optical cable sleeve 5 and the protective sleeve one 1, one end of the protective sleeve three 8 is provided with a cavity 9, the protective sleeve three 8 is internally inserted with a sponge layer 11, the protective sleeve three 8 is externally provided with a slot 12.

[0031] The sponge layer 11 is wound between the protective sleeve three 8 and the protective sleeve one 1 at both ends through the slot 12, the protective sleeve three 8 is fixedly connected with a plurality of elastic sheets 10, and one end of the plurality of elastic sheets 10 is fixedly connected with the protective sleeve three 8.

[0032] Specifically, the optical cable sleeve 5 can be protected by the protective sleeve three 8, thereby protecting the optical fiber 6, the sponge layer 11 in the protection mechanism is tightly attached to the inner wall of the protective sleeve three 8, and the sponge layer 11 is wound around the outer wall of the protective sleeve three 8 at both ends through the slot 12, so as to wrap and protect the protective sleeve three 8, and the sponge layer 11 can absorb moisture, and the sponge layer 11 is wrapped and protected by the protective sleeve one 1, so as to well isolate the moisture in the outside world and avoid contacting the optical fiber 6 to cause oxidation, and the material of the protective sleeve one 1 is polyvinyl chloride flame-retardant material, so that the optical cable has good flame-retardant effect.

[0033] When the optical cable is extruded by the outside, the sheath one 1 is concave with the sheath three 8, each spring 10 is bent, and then the sheath three 8 and the sheath one 1 are rebounded under the elasticity of each spring 10, and return to the initial position, so that the extrusion of the outside can be well buffered, and the optical cable is prevented from being damaged.

[0034] The connecting mechanism comprises the connecting head one 3 and the connecting head two 4, the connecting head one 3 is fixedly connected to the outer wall of the sheath one 1, the connecting head two 4 is fixedly connected to the outer wall of the sheath two 2, the outer wall of the connecting head one 3 is fixedly connected with the annular plate 13, the outer side wall of the annular plate 13 is provided with the annular slot 15, the inner wall of the annular slot 15 is provided with the inner annular groove 16, and the outer wall of the annular plate 13 is provided with two grooves 14 close to the edge of the annular slot 15.

[0035] The outer side wall of the connecting head two 4 is fixedly installed with two trapezoidal blocks 21 close to one end of the connecting head one 3, the trapezoidal blocks 21 are matched with the grooves 14, the outer side wall of the annular plate 13 is fixedly installed with two U-shaped frames 17, the upper ends of the two U-shaped frames 17 are inserted with the insertion rods 18, the two outer side walls of the U-shaped frames 17 are provided with vertical grooves, the inner parts of the two vertical grooves are fixedly installed with the slide rods 24, the outer parts of the two slide rods 24 are sleeved with the T-shaped blocks 20, one end of the two T-shaped blocks 20 is fixedly connected with the insertion rods 18, the outer part of the slide rod 24 is sleeved with the reset spring above the T-shaped block 20, one end of the reset spring is fixedly connected with the inner wall of the vertical groove, the other end of the reset spring is fixedly connected with the T-shaped block 20, the upper surface of the trapezoidal block 21 is provided with the insertion hole, the insertion hole is matched with the insertion rod 18, the outer side wall of the annular rubber pad 23 is installed with the supporting spring between the inner wall of the annular shell 22, under the elasticity of the two reset springs, the bottom of the insertion rod 18 can be inserted into the insertion hole, the position of the trapezoidal block 21 is fixed, so that the position between the connecting head two 4 and the annular plate 13 can be fixed.

[0036] Specifically, when two optical cables need to be connected, the connecting head two 4 is inserted into the annular slot 15 of the annular plate 13, and the two trapezoidal blocks 21 are inserted into the inner annular groove 16 through the grooves 14, then the connecting head two 4 is rotated by 90°, and the two trapezoidal blocks 21 are moved along the inner annular groove 16, and the two grooves 14 are staggered, in the process, the inclined surface of the trapezoidal block 21 first contacts the bottom end of the insertion rod 18, and under the continuous movement of the trapezoidal block 21, the insertion rod 18 is moved upward by cooperating with the sliding rod 24 through the T-shaped block 20, and the two reset springs are compressed, until the bottom end of the insertion rod 18 contacts the upper surface of the trapezoidal block 21, under the action of the elastic force of the two reset springs, the bottom of the insertion rod 18 is inserted into the insertion hole, and the position of the trapezoidal block 21 is fixed, so that the position between the connecting head two 4 and the annular plate 13 is fixed, thereby the connecting head two 4 is connected with the connecting head one 3, and then the protective sleeve one 1 is connected with the protective sleeve two 2, the connection of the two optical cables is completed, and when the connecting head two 4 is inserted into the annular slot 15, the annular shell 22 moves, with the movement of the annular shell 22, one side of the annular rubber pad 23 first contacts the outer wall of the annular plate 13 and shrinks into the annular shell 22, and the supporting springs are compressed, and then under the action of the elastic force of the supporting springs, the annular rubber pad 23 is extruded to the side close to the annular plate 13, thereby the pores between the connecting head one 3 and the connecting head two 4 can be well filled, the sealing performance of the connection of the two optical cables is improved, and external moisture is prevented from entering the optical cable from the connection to cause oxidation damage.

[0037] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. An antioxidant flame retardant optical cable comprising a primary jacket (1) and a secondary jacket (2), characterized in that, The protective cover one (1) and the protective cover two (2) are internally fixedly installed with optical cable cover (5), the optical cable cover (5) is internally fixedly installed with a plurality of optical fibers (6), the optical cable cover (5) is filled with filler (7) between a plurality of optical fibers (6), the protective cover one (1) and the optical cable cover (5) and the protective cover two (2) and the optical cable cover (5) are all provided with protection mechanism, the protective cover one (1) and the protective cover two (2) outer wall are provided with connecting mechanism between them. The protection mechanism includes protective cover three (8), the protective cover three (8) is fixedly installed between the optical cable cover (5) and the protective cover one (1), one end of the protective cover three (8) is provided with cavity (9), the sponge layer (11) is inserted into the protective cover three (8), the outer wall of the protective cover three (8) is provided with through slot (12).

2. The antioxidant and flame-retardant optical cable according to claim 1, wherein The sponge layer (11) is wrapped around the position between the protective cover three (8) and the protective cover one (1) through the through slot (12) at both ends, a plurality of elastic sheets (10) are fixedly connected to the inner wall of the protective cover three (8), and one end of the plurality of elastic sheets (10) is fixedly connected to the protective cover three (8).

3. The antioxidant and flame-retardant optical cable according to claim 1, wherein The connecting mechanism includes connecting head one (3) and connecting head two (4), the connecting head one (3) is fixedly connected to the outer wall of the protective cover one (1), the connecting head two (4) is fixedly connected to the outer wall of the protective cover two (2), and the outer wall of the connecting head one (3) is fixedly connected with annular plate (13).

4. The antioxidant and flame-retardant optical cable according to claim 3, wherein The outer side wall of the annular plate (13) is provided with annular insertion slot (15), the inner wall of the annular insertion slot (15) is provided with inner annular groove (16), and two recesses (14) are formed in the outer wall of the annular plate (13) near the edge of the annular insertion slot (15).

5. An antioxidant and flame-retardant optical cable according to claim 4, wherein Two trapezoidal blocks (21) are fixedly installed on the outer side wall of the connecting head two (4) near one end of the connecting head one (3), and the trapezoidal blocks (21) are matched with the recesses (14), two U-shaped frames (17) are fixedly installed on the outer side wall of the annular plate (13).

6. An antioxidant and flame-retardant optical cable according to claim 5, wherein The upper end of each of the two U-shaped frames (17) is inserted with an insertion rod (18), vertical grooves are formed in the two outer side walls of the U-shaped frame (17), a slide rod (24) is fixedly installed in each of the two vertical grooves, a T-shaped block (20) is sleeved on the outer side of each of the two slide rods (24), one end of each of the two T-shaped blocks (20) is fixedly connected with the insertion rod (18), a return spring is sleeved on the outer side of the slide rod (24) and above the T-shaped block (20), one end of the return spring is fixedly connected with the inner wall of the vertical groove, and the other end of the return spring is fixedly connected with the T-shaped block (20).

7. An antioxidant and flame-retardant optical cable according to claim 6, wherein The upper end surface of the trapezoidal block (21) is provided with an insertion hole, and the insertion hole is matched with the insertion rod (18), the outer side wall of the connecting head two (4) is fixedly connected with an annular shell (22), the annular shell (22) is internally inserted with an annular rubber pad (23), and a plurality of supporting springs are installed between the outer side wall of the annular rubber pad (23) and the inner wall of the annular shell (22).

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