Photoelectric composite cable for trunking

Abstract

The utility model belongs to the technical field of optical cables, and discloses a photoelectric composite cable for a trunking, which is provided with an outer protective layer, at least one electric unit and at least one loose tube, at least one optical unit is arranged in the loose tube, the outer protective layer is composed of an outer protective layer main body, the outer protective layer main body is in a regular octagon shape, the left side of the outer protective layer main body is provided with a notch, and the right side of the outer protective layer main body is provided with a groove. At least one first electric unit accommodating cavity and one loose tube accommodating cavity are arranged in the outer protective layer main body, one electric unit is arranged in the first electric unit accommodating cavity, and one loose tube is arranged in the loose tube accommodating cavity; the cable has the beneficial effects of simple structure, low cost, light weight, separated laying, mutual clamping and fixing and the like.

Description

Technical Field

[0001] This utility model belongs to the field of optical cable technology, and in particular relates to an optical-electric composite cable for cable trays. Background Technology

[0002] Optical-optical 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 copper power transmission wire, and can solve problems related to broadband access, equipment power supply, and signal transmission.

[0003] In the prior art, such as CN111208613A, an optical fiber ribbon cable is disclosed, which has a reinforcing body composed of two identical reinforcing members, multiple optical fiber ribbons located outside the reinforcing body, a protective layer covering all the optical fiber ribbons, and an outer sheath located outside the protective layer; the characteristic is that each reinforcing member is a columnar structure, and two identical reinforcing members are inverted and combined to form a complete cylindrical reinforcing body structure; each optical fiber ribbon is composed of multiple inner optical fibers, multiple outer optical fibers located above the inner optical fibers, and an optical fiber ribbon body covering all the inner and outer optical fibers, and the inner edges of all the optical fiber ribbons are spliced ​​together to form a column with a polygonal cross-section.

[0004] The aforementioned existing technologies have the following drawbacks: 1. They cannot be spliced ​​as a sub-unit to increase the number of transmission units within the cable core; 2. They have a complex structure and relatively high cost. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to disclose a fiber optic composite cable for cable trays, which is achieved using the following technical solution.

[0006] A fiber optic composite cable for cable trays has an outer sheath, at least one electrical unit, and at least one loose tube, wherein at least one optical unit is provided inside the loose tube;

[0007] The outer sheath is composed of an outer sheath body, which is in the shape of a regular octagon. There is a cut on the left side of the outer sheath body. There is at least one first electrical unit cavity in the outer sheath body on one side of the cut. There is at least one loose tube cavity in the outer sheath body on the other side of the cut. There is one electrical unit in the first electrical unit cavity and one loose tube in the loose tube cavity.

[0008] The aforementioned optical-electric composite cable for cable trays has a snap-fit ​​block connected to the right side of the outer sheath body, which can snap into the cut.

[0009] A fiber optic composite cable for cable trays has a sub-row consisting of at least one first sub-unit and one second sub-unit. The first sub-unit has an outer sheath, at least one electrical unit, and at least one loose tube. At least one optical unit is provided inside the loose tube. The outer sheath is composed of an outer sheath body, which is octagonal in shape. A cutout is provided on the left side of the outer sheath body. At least one first electrical unit cavity is provided inside the outer sheath body on one side of the cutout. At least one loose tube cavity is provided inside the outer sheath body on the other side of the cutout. One electrical unit is provided inside the first electrical unit cavity, and one loose tube is provided inside the loose tube cavity. A snap-fit ​​block that can snap into the cutout is connected to the right side of the outer sheath body.

[0010] The second subunit has an outer sheath, at least one electrical unit, and at least one loose tube. At least one optical unit is provided inside the loose tube. The outer sheath is composed of an outer sheath body, which is in the shape of a regular octagon. There is a cutout on the left side of the outer sheath body. At least one first electrical unit cavity is provided inside the outer sheath body on one side of the cutout. At least one loose tube cavity is provided inside the outer sheath body on the other side of the cutout. One electrical unit is provided inside the first electrical unit cavity, and one loose tube is provided inside the loose tube cavity.

[0011] The second sub-unit is located on the far right. From left to right, when there is a first sub-unit, the snap-fit ​​block of the first sub-unit snaps into the cutout of the second sub-unit.

[0012] When there are multiple first sub-units, the snap-fit ​​block of the left first sub-unit is inserted into the cutout of the adjacent right first sub-unit, and the snap-fit ​​block of the rightmost first sub-unit is inserted into the cutout of the second sub-unit.

[0013] A fiber optic composite cable for cable trays has multiple rows of sub-rows, each consisting of at least one first sub-unit and one second sub-unit. The first sub-unit has an outer sheath, at least one electrical unit, and at least one loose tube. At least one optical unit is disposed inside the loose tube. The outer sheath is composed of an outer sheath body, which is octagonal in shape. A cutout is provided on the left side of the outer sheath body. At least one first electrical unit cavity is disposed inside the outer sheath body on one side of the cutout. At least one loose tube cavity is disposed inside the outer sheath body on the other side of the cutout. One electrical unit is disposed inside the first electrical unit cavity, and one loose tube is disposed inside the loose tube cavity. A snap-fit ​​block that can snap into the cutout is connected to the right side of the outer sheath body.

[0014] The second subunit has an outer sheath, at least one electrical unit, and at least one loose tube. At least one optical unit is provided inside the loose tube. The outer sheath is composed of an outer sheath body, which is in the shape of a regular octagon. There is a cutout on the left side of the outer sheath body. At least one first electrical unit cavity is provided inside the outer sheath body on one side of the cutout. At least one loose tube cavity is provided inside the outer sheath body on the other side of the cutout. One electrical unit is provided inside the first electrical unit cavity, and one loose tube is provided inside the loose tube cavity.

[0015] The second sub-unit is located on the far right. From left to right, when there is a first sub-unit, the snap-fit ​​block of the first sub-unit snaps into the cutout of the second sub-unit.

[0016] When there are multiple first sub-units, the snap-fit ​​block of the left first sub-unit is inserted into the cutout of the adjacent right first sub-unit, and the snap-fit ​​block of the rightmost first sub-unit is inserted into the cutout of the second sub-unit.

[0017] The first sub-units of two adjacent rows are attached together, the second sub-units of two adjacent rows are attached together, and a merging cavity is formed between the two adjacent first sub-units of the previous row and the two adjacent first sub-units of the corresponding next row. A merging cavity is formed between the second sub-unit and the adjacent first sub-unit of the previous row and the second sub-unit and the adjacent first sub-unit of the corresponding next row.

[0018] The aforementioned optical-electric composite cable for cable trays incorporates a loose tube or electrical unit placed within the combined cavity.

[0019] The aforementioned optical fiber composite cable for cable trays has a right-angled triangle cut. The opening of the cut is the left side of the outer sheath of the regular octagon. One sidewall on the upper side of the cut is the second cut wall, and one sidewall on the lower side of the cut is the first cut wall. The first cut wall is the hypotenuse of the right-angled triangle. The second cut wall is parallel to the upper side of the outer sheath of the regular octagon. The first electrical unit cavity is located on the upper side of the second cut wall, and the loose tube cavity is located on the right side of the first cut wall.

[0020] The aforementioned optical fiber composite cable for cable trays has an isosceles right-angled triangle cut.

[0021] The aforementioned optical-electric composite cable for cable trays includes at least one first electrical unit cavity located to the lower right of the two loose tube cavities, and one electrical unit is located within the first electrical unit cavity.

[0022] The aforementioned optical-electric composite cable for cable trays has a snap-fit ​​block in the shape of an isosceles right triangle. One right-angled side of the isosceles right triangle completely coincides with the right side of the outer sheath body. The other right-angled side of the isosceles right triangle is the first snap-fit ​​wall, and the hypotenuse of the isosceles right triangle is the second snap-fit ​​wall. The second snap-fit ​​wall is parallel to the first cut wall.

[0023] The aforementioned optical-electric composite cable for cable trays has an optical fiber unit inside the loose tube.

[0024] The aforementioned optical-electric composite cable for cable trays has an optical fiber ribbon as the optical unit inside the loose tube.

[0025] The aforementioned optical fiber composite cable for cable trays comprises an optical fiber strip consisting of at least two optical fibers bonded together.

[0026] The aforementioned optical fiber composite cable for cable trays has an outer sheath made of polyethylene, polyvinyl chloride, or nylon.

[0027] The aforementioned optical fiber composite cable for cable trays uses polybutylene terephthalate or modified polypropylene as the material for the loose tube.

[0028] The aforementioned optical-electric composite cable for cable trays comprises an electrical unit consisting of a conductor and an insulating layer extruded outside the conductor.

[0029] The aforementioned optical fiber composite cable for cable trays uses single-mode or multimode optical fibers.

[0030] This utility model has the following beneficial effects:

[0031] 1. The cut-out design reduces the amount of material used in the outer protective layer, saving costs and reducing weight.

[0032] 2. The optical-electric composite cable of this utility model can be separated into two parts by a cut for separate use. One part is a cable with two electrical units, and the other part is a new optical-electric composite cable with two loose tubes and one electrical unit.

[0033] 3. The outer protective layer of this utility model is octagonal in shape. Compared with the circular structure, it can be more convenient to fit into the wire groove and is more firmly inserted.

[0034] 4. Two adjacent outer sheaths can be snapped together to form an array distribution, allowing different numbers of the optical fiber composite cables of this utility model to be snapped together according to actual laying needs, thereby increasing the number of optical fiber and electrical unit cores.

[0035] 5. After the array is distributed, a merging cavity is formed within the array, which can be used for heat dissipation, or to place loose tubes or electrical units, further increasing the number of fiber optic or electrical unit cores. Attached Figure Description

[0036] Figure 1 This is the front view of Embodiment 1 of this utility model.

[0037] Figure 2 This is a three-dimensional structural diagram of the outer protective layer of Embodiment 1 of this utility model.

[0038] Figure 3 This is a front view of the outer protective layer of Embodiment 1 of this utility model.

[0039] Figure 4 This is the front view of Embodiment 2 of this utility model.

[0040] Figure 5 This is a three-dimensional structural diagram of Embodiment 3 of this utility model.

[0041] Figure 6 This is the front view of Embodiment 3 of this utility model.

[0042] Figure 7 This is the front view of embodiment 4 of this utility model.

[0043] In the figure, 1. Outer sheath, 11. Outer sheath body, 12. First electrical unit cavity, 13. Cutout, 131. First cutout wall, 132. Second cutout wall, 14. Loose tube cavity, 2. Electrical unit, 3. Loose tube, 4. Optical fiber, 5. Optical fiber ribbon, 6. Snap-fit ​​block, 61. First snap-fit ​​wall, 62. Second snap-fit ​​wall, 7. Merging cavity. Detailed Implementation

[0044] Example 1: As Figures 1 to 3 A type of optical fiber composite cable for cable trays has an outer sheath 1, three electrical units 2 and two loose tubes 3, with at least one optical fiber 4 installed inside the loose tubes 3;

[0045] The outer sheath 1 is composed of an outer sheath body 11, which is a regular octagon. The outer sheath body 11 contains three first electrical unit cavities 12 and two loose tube cavities 14. An isosceles right-angled triangular cut 13 is provided on the left side of the outer sheath body 11. The opening of the cut 13 is the left side of the regular octagonal outer sheath body 11. One upper sidewall of the cut 13 is the second cut wall 132, and one lower sidewall of the cut 13 is the first cut wall 131. The first cut wall 131 is the hypotenuse of an isosceles right triangle, the second cut wall 132 is parallel to the upper side of the outer sheath body 11 which is a regular octagon, the two first electrical unit cavities 12 are located on the upper side of the second cut wall 132, the two loose tube cavities 14 are located on the right side of the first cut wall 131, and the remaining first electrical unit cavity 12 is located to the lower right of the two loose tube cavities 14. The first electrical unit cavity 12 is provided with an electrical unit 2, and the loose tube cavity 14 is provided with a loose tube 3.

[0046] Example 2: As Figure 4 and refer to Figure 2 and Figure 3 A type of optical fiber composite cable for cable trays, which is basically the same as that in Example 1, except that: at least one optical fiber strip 5 is provided inside the loose tube 3.

[0047] Example 3: As Figure 5 and Figure 6 and refer to Figure 2 and Figure 3 A fiber optic composite cable for cable trays is basically the same as that in embodiment 1, except that: a snap-fit ​​block 6 is connected to the right side of the outer sheath body 11. The snap-fit ​​block 6 is an isosceles right triangle. One right-angled side of the isosceles right triangle completely coincides with the right side of the outer sheath body 11. The other right-angled side of the isosceles right triangle is the first snap-fit ​​wall 61. The hypotenuse of the isosceles right triangle is the second snap-fit ​​wall 62. The second snap-fit ​​wall 62 is parallel to the first cut wall 131.

[0048] Example 4: Figure 7 and refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 A type of optical fiber composite cable for cable trays has nine first sub-units and three second sub-units. The first sub-units are the same as those in Embodiment 3 and Embodiment 1. The nine first sub-units and three second sub-units are arranged in four rows, with each row having three first sub-units and one second sub-unit. The second sub-units are located on the far right.

[0049] In each row of three first sub-units and one second sub-unit, from left to right, the snap-fit ​​block 6 of the left first sub-unit is inserted into the cutout 13 of the adjacent right first sub-unit, and the snap-fit ​​block 6 of the rightmost first sub-unit is inserted into the cutout 13 of the corresponding right second sub-unit. The first snap-fit ​​wall 61 and the corresponding second cutout wall 132 are completely fitted together, and the second snap-fit ​​wall 62 and the corresponding first cutout wall 131 are completely fitted together.

[0050] The first sub-unit of the upper row and the first sub-unit of the lower row are attached to each other in a one-to-one correspondence. The second sub-unit of the upper row and the second sub-unit of the lower row are attached to each other. A merging cavity 7 is formed between two adjacent first sub-units in the upper row and the corresponding two adjacent first sub-units in the lower row. A merging cavity 7 is formed between the second sub-unit of the upper row and the adjacent first sub-unit, and the corresponding second sub-unit of the lower row and the adjacent first sub-unit. The merging cavity 7 can be used for heat dissipation or to place loose sleeves 3 or electrical units 2.

[0051] The aforementioned optical fiber composite cable for cable trays has an outer sheath 1 made of polyethylene, polyvinyl chloride, or nylon.

[0052] The aforementioned optical fiber composite cable for cable trays uses a loose tube 3 made of polybutylene terephthalate or modified polypropylene.

[0053] The aforementioned optical-electric composite cable for cable trays comprises an electrical unit 2 consisting of a conductor and an insulating layer extruded outside the conductor.

[0054] The aforementioned optical fiber composite cable for cable trays uses single-mode or multimode optical fiber as the optical fiber 4.

[0055] The aforementioned optical fiber composite cable for cable trays comprises an optical fiber strip 5 consisting of at least two optical fibers 4 strung together.

[0056] The aforementioned optical fiber composite cable for cable trays is octagonal in shape and can be installed in cable trays.

[0057] This utility model has the following beneficial effects:

[0058] 1. The cut 13 is set, which reduces the amount of material used in the outer protective layer 1, saves costs, and reduces weight.

[0059] 2. The optical-electric composite cable of this utility model can be separated into two parts from the cut 13 for use separately. One part is a cable with two electrical units 2, and the other part is a new optical-electric composite cable with two loose tubes 3 and one electrical unit 2.

[0060] 3. The outer protective layer 11 of this utility model is in the shape of a regular octagon. Compared with the circular structure, it can be more convenient to be inserted into the wire groove and is more firmly inserted.

[0061] 4. Two adjacent outer sheaths 1 can be snapped together to form an array distribution, and different numbers of the optical fiber composite cables of this utility model can be snapped together according to actual laying needs, increasing the number of optical fiber 4 and electrical unit 2 cores.

[0062] 5. After the array is distributed, a merging cavity 7 is formed within the array, which can be used for heat dissipation, or to place loose tubes 3 or electrical units 2, further increasing the number of optical fibers 4 or electrical units 2.

[0063] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A photoelectric composite cable for wire ducts, having an outer jacket (1), at least one electrical unit (2) and at least one loose tube (3), at least one optical unit being arranged in the loose tube (3), the optical unit being an optical fiber (4) or an optical fiber ribbon (5); characterized in that: The outer protective layer (1) is composed of an outer protective layer body (11), the outer protective layer body (11) is a regular octagon, the left side of the outer protective layer body (11) is provided with a cutout (13), at least one first electric unit cavity (12) is arranged in the outer protective layer body (11) on one side of the cutout (13), at least one loose tube cavity (14) is arranged in the outer protective layer body (11) on the other side of the cutout (13), an electric unit (2) is arranged in the first electric unit cavity (12), and a loose tube (3) is arranged in the loose tube cavity (14).

2. The optical-electrical composite cable for wire duct according to claim 1, wherein: The right side of the outer protective layer body (11) is connected with a clamping block (6) capable of clamping with the cutout (13).

3. An optical-electrical composite cable for wire ducts, having a row of sub-rows consisting of at least one first sub-unit and one second sub-unit, characterized in that: The first subunit has an outer protective layer (1), at least one electric unit (2) and at least one loose tube (3), at least one optical unit is arranged in the loose tube (3), the outer protective layer (1) is composed of an outer protective layer body (11), the outer protective layer body (11) is a regular octagon, the left side of the outer protective layer body (11) is provided with a cutout (13), at least one first electric unit cavity (12) is arranged in the outer protective layer body (11) on one side of the cutout (13), at least one loose tube cavity (14) is arranged in the outer protective layer body (11) on the other side of the cutout (13), an electric unit (2) is arranged in the first electric unit cavity (12), and a loose tube (3) is arranged in the loose tube cavity (14), the right side of the outer protective layer body (11) is connected with a clamping block (6) capable of clamping with the cutout (13). The second subunit has an outer protective layer (1), at least one electric unit (2) and at least one loose tube (3), at least one optical unit is arranged in the loose tube (3), the outer protective layer (1) is composed of an outer protective layer body (11), the outer protective layer body (11) is a regular octagon, the left side of the outer protective layer body (11) is provided with a cutout (13), at least one first electric unit cavity (12) is arranged in the outer protective layer body (11) on one side of the cutout (13), at least one loose tube cavity (14) is arranged in the outer protective layer body (11) on the other side of the cutout (13), an electric unit (2) is arranged in the first electric unit cavity (12), and a loose tube (3) is arranged in the loose tube cavity (14); the second subunit is located at the rightmost side, from left to right, when there is one first subunit, the clamping block (6) of the first subunit is clamped with the cutout (13) of the second subunit; when there are multiple first subunits, the clamping block (6) of the left first subunit is inserted into the cutout (13) of the adjacent right first subunit, and the clamping block (6) of the rightmost first subunit is inserted into the cutout (13) of the second subunit.

4. The photoelectric composite cable for wire duct according to any one of claims 1 to 3, characterized by: The notch (13) is a right-angled triangle, the opening of the notch (13) is the left side of the octagonal outer sheath body (11), one side wall of the upper side of the notch (13) is a second notch wall (132), one side wall of the lower side of the notch (13) is a first notch wall (131), the first notch wall (131) is a hypotenuse of the right-angled triangle, the second notch wall (132) is parallel to the upper side of the octagonal outer sheath body (11), the first electric unit cavity (12) is located on the upper side of the second notch wall (132), and the loose tube cavity (14) is located on the right side of the first notch wall (131).

5. The optical-electrical composite cable for wire duct according to claim 4, wherein: The notch (13) is an isosceles right-angled triangle.

6. The photoelectric composite cable for wire duct according to claim 5, wherein: The clamping block (6) is an isosceles right-angled triangle, one right angle side of the isosceles right-angled triangle is completely coincident with the right side of the outer sheath body (11), the other right angle side of the isosceles right-angled triangle is a first clamping wall (61), and the hypotenuse of the isosceles right-angled triangle is a second clamping wall (62), the second clamping wall (62) is parallel to the first notch wall (131).

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