Improved multi-core branch optical cable

Abstract

The utility model discloses an improved multi-core branch optical cable which comprises an inner core layer, a plurality of stripping assemblies are arranged on the surface of the inner core layer at equal intervals, the surfaces of the stripping assemblies are coated with outer stripping layers, each stripping assembly comprises two waterproof layers, optical fibers are inserted into the waterproof layers in a penetrating mode, and the surfaces of the waterproof layers are coated with outer protective layers. The bottoms of the two outer protection layers are fixedly connected with clamping strips, the surface of the inner core layer is provided with a plurality of clamping grooves at equal intervals, the surfaces of the clamping strips are connected with inner cavities of the clamping grooves in a clamping mode, the surface of the stripping assembly is provided with a plurality of limiting rings at equal intervals, and the surfaces of the limiting rings are fixedly connected with a plurality of reinforcing ribs at equal intervals. The transverse limiting ring is arranged on the surface of the outer stripping layer, the reinforcing ribs are arranged on the surface of the limiting ring, limiting is performed through the limiting ring and the reinforcing ribs, and the situation that the optical fiber is extruded outwards, consequently, the surface of the outer stripping layer is damaged, and the stripping length is increased is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of branch optical cables, in particular to an improved multi-core branch optical cable. Background Art

[0002] There are two main types of multi-core branch optical cables. The first is parallel branch optical cable, which is a ribbon optical cable composed of multiple sub-cables, with intermittent cuts between sub-cables for cable branching. The second is integrated branch optical cable, which is a round optical cable integrated with multiple optical cables, with intermittent cuts in the outer jacket for cable branching. The structural size of the optical cable is related to the number of sub-cables, the requirements for sub-cables, and the form of the branch optical cable.

[0003] However, it is very inconvenient to strip the branch optical cables of the existing multi-core optical cables, and the outer stripping layer lacks a limiting structure after stripping, so the stripped optical cable is squeezed outward, which easily damages the outer stripping layer, thereby increasing the stripping length. Utility Model Content

[0004] The purpose of the utility model is to provide an improved multi-core branch optical cable to solve the problem that the existing multi-core optical cable proposed in the above background technology is very inconvenient when stripping the branch optical cable, and the outer stripping layer lacks a limiting structure after stripping, and the stripped optical cable is squeezed outward, which easily causes the outer stripping layer to be damaged, thereby increasing the stripping length.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved multi-core branch optical cable, comprising an inner core layer, a plurality of stripping components are equidistantly arranged on the surface of the inner core layer, the surfaces of the plurality of stripping components are covered with an outer stripping layer, the stripping components comprise two waterproof layers, optical fibers are inserted into the interior of the waterproof layers, the surfaces of the waterproof layers are covered with an outer protective layer, the bottoms of the two outer protective layers are fixedly connected with a clamping strip, a plurality of clamping grooves are equidistantly provided on the surface of the inner core layer, and the surfaces of the clamping strips are clamped with the inner cavities of the clamping grooves, a plurality of limiting rings are equidistantly arranged on the surface of the stripping components, and a plurality of reinforcing ribs are equidistantly and fixedly connected to the surfaces of the limiting rings.

[0006] Preferably, both sides of the bottom of the clamping strip are fixedly connected with elastic protrusions, and one side of the two elastic protrusions respectively abuts against the inner wall of the clamping slot to limit the clamping strip.

[0007] Preferably, a separation mark is provided between two adjacent waterproof layers, and the inner cavity of the separation mark is filled with an adhesive layer, and the strength of the adhesive layer is smaller than the structural strength of the waterproof layer, so as to facilitate the separation between the waterproof layers.

[0008] Preferably, a pulling belt is inserted into the inner cavity of the inner core layer, and the pulling belt is a steel wire rope, so as to enhance the anti-pulling performance of the optical cable.

[0009] Preferably, a middle sleeve is coated between the stripping component and the outer stripping layer, and the surface of the middle sleeve is bonded to the inner wall of the outer stripping layer. The inner wall of the middle sleeve is in close contact with the surface of the stripping component, which facilitates the separation of the glass components.

[0010] Preferably, the stripping component is an arc-shaped structure, and the central angle of the stripping component is one hundred and twenty degrees.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The outer stripping layer and the middle sleeve are stripped by tools, so that the stripping assembly is exposed to the outside, and then the stripping assembly is pulled outward to separate the card strip and the elastic protrusion from the inner cavity of the card slot, so that every two optical fibers can be branched as a whole. When it is necessary to continue branching, the separation mark on the stripping assembly is torn outward to separate the two optical fibers, so that more accurate branching can be achieved. The stripping assembly and the inner core layer are detachably connected through the card strip, the card slot and the elastic protrusion. The inner cavity of the separation mark is filled with an adhesive layer with a structural strength lower than that of the waterproof layer, so that the two adjacent waterproof layers can be torn and pulled for branching, which is convenient for the optical cable to be branched according to needs;

[0013] The surface of the outer stripping layer is provided with a transverse limiting ring, and the surface of the limiting ring is provided with reinforcing ribs. The limiting ring and the reinforcing ribs are used for limiting to prevent the optical fiber from being squeezed outward, causing damage to the surface of the outer stripping layer and increasing the stripping length. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the outer peeling layer of the utility model;

[0016] Figure 3 It is a cross-sectional view of the branch assembly of the utility model;

[0017] Figure 4 It is an enlarged view of part A of the utility model.

[0018] In the figure: 1. inner core layer; 2. stripping assembly; 3. outer stripping layer; 4. middle sleeve; 5. waterproof layer; 6. optical fiber; 7. outer protective layer; 8. clamping strip; 9. clamping slot; 10. elastic protrusion; 11. limiting ring; 12. reinforcing rib; 13. pulling belt; 14. separation mark. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides an improved multi-core branch optical cable, comprising an inner core layer 1, a plurality of stripping components 2 are equidistantly arranged on the surface of the inner core layer 1, the surfaces of the plurality of stripping components 2 are covered with an outer stripping layer 3, the stripping components 2 include two waterproof layers 5, optical fibers 6 are inserted into the waterproof layers 5, the surfaces of the waterproof layers 5 are covered with an outer protective layer 7, the bottoms of the two outer protective layers 7 are fixedly connected with a clamping strip 8, a plurality of clamping grooves 9 are equidistantly provided on the surface of the inner core layer 1, and the surfaces of the clamping strips 8 are clamped with the inner cavities of the clamping grooves 9, a plurality of limiting rings 11 are equidistantly arranged on the surface of the stripping components 2, and a plurality of reinforcing ribs 12 are fixedly connected with the surfaces of the limiting rings 11 at equal intervals; the outer stripping layer 3 and the middle sleeve 4 are stripped by a tool, so that the stripping components 2 are exposed to the outside, at this time, the two adjacent stripping components 2 are only in contact with each other without being bonded, and then the stripping components 2 are pulled outwards to release the outer stripping layer 3 and the middle sleeve 4. Component 2, so that the card strip 8 and the elastic protrusion 10 are separated from the inner cavity of the card slot 9, so that every two optical fibers 6 can be branched as a whole. When it is necessary to continue branching, the separation mark 14 on the stripping component 2 is torn outward to separate the two optical fibers 6, so that more precise branching can be achieved. The stripping component 2 and the inner core layer 1 are detachably connected through the card strip 8, the card slot 9 and the elastic protrusion 10. The inner cavity of the separation mark 14 is filled with an adhesive layer whose structural strength is less than that of the waterproof layer 5, so that branches can be torn between two adjacent waterproof layers 5, which is convenient for the optical cable to branch according to needs, and the surface of the outer stripping layer 3 is provided with a transverse limiting ring 11, and the surface of the limiting ring 11 is provided with a reinforcing rib 12. The limiting ring 11 and the reinforcing rib 12 are used for limiting to prevent the optical fiber 6 from being squeezed outward, resulting in surface damage of the outer stripping layer 3 and increasing the stripping length.

[0021] See also Figure 1-4 Furthermore, elastic protrusions 10 are fixedly connected to both sides of the bottom of the card strip 8, and one side of the two elastic protrusions 10 abuts against the inner wall of the card slot 9 respectively, so as to limit the card connection between the card strip 8 and the card slot 9.

[0022] See also Figure 1-4 Furthermore, a separation mark 14 is provided between two adjacent waterproof layers 5, and the inner cavity of the separation mark 14 is filled with an adhesive layer, and the strength of the adhesive layer is less than the structural strength of the waterproof layer 5, and the inner cavity of the separation mark 14 is filled with an adhesive layer whose structural strength is less than that of the waterproof layer 5, so that branches can be torn between two adjacent waterproof layers 5, which is convenient for the optical cable to branch according to needs.

[0023] See also Figure 1-4 Furthermore, a pulling belt 13 is inserted into the inner cavity of the inner core layer 1, and the pulling belt 13 is a steel wire rope to strengthen the overall structure of the optical cable.

[0024] See also Figure 1-4 Furthermore, a middle sleeve 4 is coated between the stripping component 2 and the outer stripping layer 3, and the surface of the middle sleeve 4 is bonded to the inner wall of the outer stripping layer 3, and the inner wall of the middle sleeve 4 is tightly attached to the surface of the stripping component 2, so that after the outer stripping layer 3 and the middle sleeve 4 are stripped, adjacent stripping components 2 can be separated.

[0025] See also Figure 1-4 Furthermore, the stripping component 2 is an arc-shaped structure, and the central angle of the stripping component 2 is one hundred and twenty degrees, forming a circular structure, so that the stripping components 2 are more stable.

[0026] During specific use, the outer stripping layer 3 and the middle sleeve 4 are peeled off by a tool, so that the stripping component 2 is exposed to the outside. At this time, the two adjacent stripping components 2 are only in contact with each other but not bonded. Then the stripping component 2 is pulled outward to separate the clamping strip 8 and the elastic protrusion 10 from the inner cavity of the clamping slot 9, so that every two optical fibers 6 can be branched as a whole. When it is necessary to continue branching, the separation mark 14 on the stripping component 2 is torn outward to separate the two optical fibers 6, so that more precise branching can be achieved. The stripping component 2 and the inner core layer 1 are detachably connected through the clamping strip 8, the clamping slot 9 and the elastic protrusion 10. The inner cavity of the separation mark 14 is filled with a bonding layer with a structural strength less than that of the waterproof layer 5, so that the two adjacent waterproof layers 5 can be torn and branched, which is convenient for the optical cable to branch according to needs, and a transverse limiting ring 11 is provided on the surface of the outer stripping layer 3, and a reinforcing rib 12 is provided on the surface of the limiting ring 11. The limiting ring 11 and the reinforcing rib 12 are used for limiting to prevent the optical fiber 6 from being squeezed outward, resulting in surface damage of the outer stripping layer 3 and increasing the stripping length.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An improved multi-core branch optical cable, comprising an inner core layer (1), characterized in that: The surface of the inner core layer (1) is provided with a plurality of stripping components (2) at equal intervals, and the surfaces of the plurality of stripping components (2) are covered with an outer stripping layer (3). The stripping components (2) include two waterproof layers (5), the interior of the waterproof layers (5) is interspersed with optical fibers (6), the surface of the waterproof layers (5) is covered with an outer protective layer (7), and the bottoms of the two outer protective layers (7) are fixedly connected with a clamping strip (8). The surface of the inner core layer (1) is provided with a plurality of clamping grooves (9) at equal intervals, and the surface of the clamping strip (8) is clamped with the inner cavity of the clamping groove (9). The surface of the stripping components (2) is provided with a plurality of limiting rings (11) at equal intervals, and the surface of the limiting rings (11) is fixedly connected with a plurality of reinforcing ribs (12) at equal intervals.

2. An improved multi-core branch optical cable according to claim 1, characterized in that: Both sides of the bottom of the clamping strip (8) are fixedly connected with elastic protrusions (10), and one side of the two elastic protrusions (10) is respectively in contact with the inner wall of the clamping slot (9).

3. An improved multi-core branch optical cable according to claim 1, characterized in that: A separation mark (14) is provided between two adjacent waterproof layers (5), and the inner cavity of the separation mark (14) is filled with an adhesive layer, and the strength of the adhesive layer is lower than the structural strength of the waterproof layer (5).

4. The improved multi-core branch optical cable according to claim 1, characterized in that: A pulling belt (13) is inserted into the inner cavity of the inner core layer (1), and the pulling belt (13) is a steel wire rope.

5. The improved multi-core branch optical cable according to claim 1, characterized in that: A middle sleeve (4) is coated between the stripping component (2) and the outer stripping layer (3), and the surface of the middle sleeve (4) is bonded to the inner wall of the outer stripping layer (3), and the inner wall of the middle sleeve (4) is in close contact with the surface of the stripping component (2).

6. An improved multi-core branch optical cable according to claim 1, characterized in that: The stripping component (2) is an arc-shaped structure, and the central angle of the stripping component (2) is one hundred and twenty degrees.

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