Communication optical cable with structure shaped like Chinese character'tu '

Abstract

The utility model belongs to the technical field of cables, and particularly relates to a communication optical cable with an inverted-T-shaped structure, which is provided with three first transmission units which are distributed and fixed in an inverted-T shape, each first transmission unit consists of an outer sheath and an inner sheath, the inner sheath is positioned in the middle of the outer sheath, and gaps exist between the inner sheath and the upper and lower walls of the outer sheath; at least one optical transmission component is arranged in the inner protective layer; the utility model has the beneficial effects of simple structure, pressure resistance, good shock resistance and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables, and in particular relates to a digital structure optical cable for communication products. Background Art

[0002] In the prior art, CN216118114U discloses a communication optical cable for power grid, which is characterized in that it includes a central reinforcement member, a plurality of groups of limit buffer members are equidistantly arranged in a circular array on the outer wall of the central reinforcement member, and an optical cable unit is clamped at the other end of the limit buffer member, the central reinforcement member is arranged in the center of the inner sheath, and the side of the optical cable unit away from the limit buffer member is connected to the inner wall of the inner sheath, the outer wall of the inner sheath is provided with a glass fiber mesh layer, the outer wall of the glass fiber mesh layer is provided with an anti-interference layer, the outer wall of the anti-interference layer is provided with an armor layer, and the outer wall of the armor layer is provided with an outer sheath.

[0003] The above-mentioned prior art has the following drawbacks: 1. Complex structure, high cost and low production efficiency; 2. Low compression and impact resistance. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to disclose a digital structure optical cable for communication, which is achieved by adopting the following technical solutions.

[0005] A communication cable having a T-shaped structure, comprising a first transmission unit, a second transmission unit and a third transmission unit, wherein the first transmission unit, the second transmission unit and the third transmission unit have the same structure and are distributed in a T-shaped shape, wherein the first transmission unit is located at the top, and the second transmission unit and the third transmission unit are located at the left and right sides of the bottom, and characterized in that: the first transmission unit is composed of an outer sheath and an inner sheath, wherein the outer sheath is surrounded by two first outer side walls and two second outer side walls, wherein a first cavity is formed inside the outer sheath, wherein the two first outer side walls are located at the upper and lower sides, and the two first outer side walls are parallel, wherein an upward first fixing component is respectively provided at both ends of the first outer side wall on the upper side, and two first fixing grooves with openings upward are formed on the first outer side wall between the two first fixing components on the upper side, wherein a downward first fixing component is respectively provided at both ends of the first outer side wall on the lower side, and two first fixing grooves with openings downward are formed on the first outer side wall between the two first fixing components on the lower side, and the two second outer side walls are located at the left and right sides, and the second outer side walls are V-shaped, wherein the second outer side wall on the left side forms a first V-shaped groove with an opening to the left, and the second outer side wall on the right side forms a first V-shaped groove with an opening to the right;

[0006] The inner protective layer is located in the first cavity, and the first cavity is surrounded by two first inner side walls and two second inner side walls. The two first inner side walls are located at the upper and lower sides, and the two first inner side walls are parallel. The length of the first inner side wall is greater than the distance between the bottoms of the two first V-shaped grooves. There is a gap between the upper first inner side wall and the upper first outer side wall, and there is a gap between the lower first inner side wall and the lower first outer side wall. The two second inner side walls are located at the left and right sides, and the second inner side walls are V-shaped. The second inner side wall on the left side forms a second V-shaped groove opening to the left, and the second inner wall on the right side forms a second V-shaped groove opening to the right. At least one optical transmission component is provided in the inner protective layer;

[0007] The first fixing part on the upper right side of the second transmission unit is fixed to the first fixing groove on the left side of the first outer side wall below the first transmission unit, the first fixing part on the upper left side of the third transmission unit is fixed to the first fixing groove on the right side of the first outer side wall below the first transmission unit, the first fixing part on the lower left side of the first transmission unit is fixed to the first fixing groove on the right side of the first outer side wall above the second transmission unit, and the first fixing part on the lower right side of the first transmission unit is fixed to the first fixing groove on the left side of the first outer side wall above the third transmission unit.

[0008] The above-mentioned communication cable with a letter structure is characterized in that four partition components are provided between the two second inner side walls, two of which are located on the left side and form an X shape with the second inner side wall on the left side, and the other two partition components are located on the right side and form an X shape with the second inner side wall on the right side, a second cavity is formed between the partition component on the upper left side, the second inner side wall on the left side and the upper first inner side wall, a second cavity is formed between the partition component on the lower left side, the second inner side wall on the left side and the lower first inner side wall, a second cavity is formed between the partition component on the upper right side, the second inner side wall on the right side and the upper first inner side wall, a second cavity is formed between the partition component on the lower right side, the second inner side wall on the right side and the lower first inner side wall, a second cavity is formed between the four partition components, and the optical transmission component is located in the second cavity.

[0009] The above-mentioned V-shaped optical cable for communication is characterized in that: a partition component is also provided between the two second inner walls, the left end of the partition component is connected to the bottom of the second V-shaped groove of the second inner wall on the left side, and the right end of the partition component is connected to the bottom of the second V-shaped groove of the second inner wall on the right side, a second cavity is formed between the partition component, the first inner wall on the upper side and the second inner walls on the left and right sides, a second cavity is formed between the partition component, the first inner wall on the lower side and the second inner walls on the left and right sides, and the optical transmission component is located in the second cavity.

[0010] The above-mentioned digital structure optical cable for communication is characterized in that the optical transmission component is composed of a loose tube and at least one optical communication component in the loose tube, and the optical communication component is an optical fiber.

[0011] The above-mentioned digital structure optical cable for communication is characterized in that the optical transmission component is an optical fiber ribbon.

[0012] The above-mentioned digital structure optical cable for communication is characterized in that the optical fiber ribbon is formed by at least two optical fibers being ribboned together.

[0013] The above-mentioned communication optical cable is characterized in that: a connecting component is provided below the second transmission unit and the third transmission unit, the connecting component is composed of a connecting component body and two second fixing components, the two second fixing components are respectively located on the upper walls at both ends of the connecting component body, and the upper wall of the connecting component body between the two second fixing components is provided with two second fixing grooves;

[0014] The second fixing component on the left is fixed to the first fixing groove on the right side of the first outer side wall below the second transmission unit, the second fixing component on the right side is fixed to the first fixing groove on the left side of the first outer side wall below the third transmission unit, the first fixing component below the right side of the second transmission unit is fixed to the second fixing groove on the left side of the second fixing component, the first fixing component below the left side of the third transmission unit is fixed to the second fixing groove on the right side of the second fixing component, and an installation hole for overhead wiring is formed between the first transmission unit, the second transmission unit, the third transmission unit and the connecting component.

[0015] The above-mentioned digital structure optical cable for communication is characterized in that the material of the outer sheath is high-density polyethylene.

[0016] The above-mentioned digital structure optical cable for communication is characterized in that the material of the inner sheath is high-density polyethylene.

[0017] The above-mentioned V-shaped optical cable for communication is characterized in that: the angle of the first V-shaped groove is greater than the angle of the second V-shaped groove, or the first V-shaped groove and the second V-shaped groove are in contact with each other, or the angle of the first V-shaped groove is smaller than the angle of the second V-shaped groove.

[0018] The above-mentioned V-shaped optical cable for communication is characterized in that when the included angle of the first V-shaped groove is greater than the included angle of the second V-shaped groove, the two ends of the first inner side wall respectively abut against the corresponding second outer side wall.

[0019] The above-mentioned digital structure optical cable for communication is characterized in that the optical fiber is a multimode optical fiber or a single-mode optical fiber.

[0020] This application has the following beneficial effects:

[0021] 1. The inner sheath is located inside the outer sheath, and there is a gap between the inner sheath and the outer sheath, so that when the first transmission unit, the second transmission unit, or the third transmission unit is subjected to upper and lower side pressure, the pressure acts on the outer sheath but not on the inner sheath, thereby protecting the internal optical communication components from being affected.

[0022] 2. The second outer side wall is V-shaped. When the first transmission unit or the second transmission unit or the third transmission unit is subjected to pressure from the upper and lower sides, the pressure can be offset by contracting the angle of the first V-shaped groove. When the first transmission unit or the second transmission unit or the third transmission unit is subjected to pressure from the left and right sides, the pressure can be offset by expanding the angle of the first V-shaped groove, thereby improving the compression resistance of the outer protective layer and the impact resistance of the first transmission unit or the second transmission unit or the third transmission unit.

[0023] 3. When the two ends of the first inner side wall are respectively against the corresponding second outer side wall, the outer protective layer and the inner protective layer are more firmly fixed, preventing the influence of possible vibration on the internal optical communication components during overhead laying.

[0024] 4. The first transmission unit and the second transmission unit are fixed to each other, and the first transmission unit and the third transmission unit are fixed to each other, so that the structure of the optical cable is more solid.

[0025] 5. Connecting components are provided to further improve the structural firmness of the optical cable.

[0026] 6. The formed installation hole does not require any fixing parts for laying, which facilitates the overhead laying of optical cables.

[0027] 7. The structure is simple, the inner and outer protective layers are integrally formed, the production is convenient and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of the end face of Example 1.

[0029] Figure 2 This is a schematic structural diagram of the end surface of the first transmission unit of Example 1.

[0030] Figure 3 This is a schematic structural diagram of the end surface of the outer protective layer of Example 1.

[0031] Figure 4 This is a schematic structural diagram of the end surface of the inner protective layer of Example 1.

[0032] Figure 5 This is a schematic structural diagram of the end face of Example 2.

[0033] Figure 6 This is a schematic structural diagram of the end surface of the first transmission unit of Example 2.

[0034] Figure 7 This is a schematic structural diagram of the inner protective layer and the end surface of the optical unit of Example 2.

[0035] Figure 8 This is a schematic structural diagram of the end surface of the inner protective layer of Example 2.

[0036] Fig. 9 This is a schematic structural diagram of the end face of Example 3.

[0037] Fig.10 This is a schematic structural diagram of the end surface of the connecting component of Example 3.

[0038] Fig.11 This is a schematic diagram of the three-dimensional structure after a section of overhead installation in Example 3.

[0039] In the figure: 1. first transmission unit, 11. outer protective layer, 111. first outer side wall, 112. first fixing groove, 113. second outer side wall, 114. first V-shaped groove, 115. first fixing component, 116. first cavity, 12. inner protective layer, 121. first inner side wall, 122. second inner side wall, 123. second V-shaped groove, 124. partition component, 125. second cavity, 13. loose tube, 14. optical communication component, 2. second transmission unit, 3. third transmission unit, 4. connecting component, 41. connecting component body, 42. second fixing groove, 43. second fixing component, 5. mounting hole, 6. mounting line. DETAILED DESCRIPTION Example 1

[0040] like Figures 1 to 4A communication cable having a T-shaped structure, comprising a first transmission unit 1, a second transmission unit 2 and a third transmission unit 3, wherein the first transmission unit 1, the second transmission unit 2 and the third transmission unit 3 have the same structure and are arranged in a T-shaped shape, wherein the first transmission unit 1 is located at the top, and the second transmission unit 2 and the third transmission unit 3 are located at the left and right sides of the bottom, and wherein the first transmission unit 1 is composed of an outer sheath 11 and an inner sheath 12, wherein the outer sheath 11 is surrounded by two first outer side walls 111 and two second outer side walls 113, wherein a first cavity 116 is formed inside the outer sheath 11, wherein the two first outer side walls 111 are located at the upper and lower sides, and the two first outer side walls 111 are parallel, and the upper first outer side walls 112 are arranged on the upper side of the first outer side walls 113. An upward first fixing component 115 is respectively provided at both ends of the wall 111, and two first fixing grooves 112 opening upward are formed on the first outer side wall 111 between the two first fixing components 115 on the upper side, and a downward first fixing component 115 is respectively provided at both ends of the first outer side wall 111 on the lower side, and two first fixing grooves 112 opening downward are formed on the first outer side wall 111 between the two first fixing components 115 on the lower side, and two second outer side walls 113 are located on the left and right sides, and the second outer side walls 113 are V-shaped, and the left second outer side wall 113 forms a first V-shaped groove 114 opening to the left, and the right second outer side wall 113 forms a first V-shaped groove 114 opening to the right;

[0041] The inner protective layer 12 is located in the first cavity 116, and the first cavity 116 is surrounded by two first inner side walls 121 and two second inner side walls 122. The two first inner side walls 121 are located on the upper and lower sides, and the two first inner side walls 121 are parallel. The length of the first inner side wall 121 is greater than the distance between the bottoms of the two first V-shaped grooves 114. There is a gap between the upper first inner side wall 121 and the upper first outer side wall 111, and there is a gap between the lower first inner side wall 121 and the lower first outer side wall 111. The two second inner side walls 122 are located on the left and right sides, and the second inner side walls 122 are V-shaped. The second inner side wall 122 on the left side forms a second V-shaped groove 123 opening to the left, and the second inner side wall 122 on the right side forms a second V-shaped groove 123 opening to the right. Four partition components 124 are also provided between the two second inner side walls 122. The two partition components 124 are located on the left side and form an X with the second inner side wall 122 on the left side. Shape, other two partitioning components 124 are located on the right side, and form an X shape with the second inner sidewall 122 on the right side, a second cavity 125 is formed between the partitioning component 124 on the upper left side, the second inner sidewall 122 on the left side and the first inner sidewall 121 on the top, a second cavity 125 is formed between the partitioning component 124 on the left side below, the second inner sidewall 122 on the left side and the first inner sidewall 121 below, a second cavity 125 is formed between the partitioning component 124 on the right side above, the second inner sidewall 122 on the right side and the first inner sidewall 121 on the top, a second cavity 125 is formed between the partitioning component 124 on the right side below, the second inner sidewall 122 on the right side and the first inner sidewall 121 below, a second cavity 125 is formed between the four partitioning components 124, a loose tube 13 is provided in the second cavity 125, at least one optical communication component 14 is provided in the loose tube 13, and the optical communication component 14 is an optical fiber;

[0042] The first fixing component 115 on the upper right side of the second transmission unit 2 is fixed to the first fixing groove 112 on the left side of the first outer wall 111 below the first transmission unit 1, the first fixing component 115 on the upper left side of the third transmission unit 3 is fixed to the first fixing groove 112 on the right side of the first outer wall 111 below the first transmission unit 1, the first fixing component 115 on the lower left side of the first transmission unit 1 is fixed to the first fixing groove 112 on the right side of the first outer wall 111 above the second transmission unit 2, and the first fixing component 115 on the lower right side of the first transmission unit 1 is fixed to the first fixing groove 112 on the left side of the first outer wall 111 above the third transmission unit 3. Example 2

[0043] like Figures 5 to 8 , and refer to Figure 3A communication cable having a T-shaped structure, comprising a first transmission unit 1, a second transmission unit 2 and a third transmission unit 3, wherein the first transmission unit 1, the second transmission unit 2 and the third transmission unit 3 have the same structure and are arranged in a T-shaped shape, wherein the first transmission unit 1 is located at the top, and the second transmission unit 2 and the third transmission unit 3 are located at the left and right sides of the bottom, and wherein the first transmission unit 1 is composed of an outer sheath 11 and an inner sheath 12, wherein the outer sheath 11 is surrounded by two first outer side walls 111 and two second outer side walls 113, wherein a first cavity 116 is formed inside the outer sheath 11, wherein the two first outer side walls 111 are located at the upper and lower sides, and the two first outer side walls 111 are parallel, and the upper first outer side walls 112 are arranged on the upper side of the first outer side walls 113. An upward first fixing component 115 is respectively provided at both ends of the wall 111, and two first fixing grooves 112 opening upward are formed on the first outer side wall 111 between the two first fixing components 115 on the upper side, and a downward first fixing component 115 is respectively provided at both ends of the first outer side wall 111 on the lower side, and two first fixing grooves 112 opening downward are formed on the first outer side wall 111 between the two first fixing components 115 on the lower side, and two second outer side walls 113 are located on the left and right sides, and the second outer side walls 113 are V-shaped, and the left second outer side wall 113 forms a first V-shaped groove 114 opening to the left, and the right second outer side wall 113 forms a first V-shaped groove 114 opening to the right;

[0044] The inner protective layer 12 is located in the first cavity 116, and the first cavity 116 is surrounded by two first inner side walls 121 and two second inner side walls 122. The two first inner side walls 121 are located on the upper and lower sides, and the two first inner side walls 121 are parallel. The length of the first inner side wall 121 is greater than the distance between the bottoms of the two first V-shaped grooves 114. There is a gap between the upper first inner side wall 121 and the upper first outer side wall 111, and there is a gap between the lower first inner side wall 121 and the lower first outer side wall 111. The two second inner side walls 122 are located on the left and right sides, and the second inner side walls 122 are V-shaped. The second inner side wall 122 on the left side forms a second V-shaped groove 123 opening to the left, and the second inner side wall 122 on the right side forms a second V-shaped groove 123 opening to the left. The second V-shaped groove 123 on the right, a partition component 124 is also provided between the two second inner side walls 122, the left end of the partition component 124 is connected to the bottom of the second V-shaped groove 123 of the second inner side wall 122 on the left, and the right end of the partition component 124 is connected to the bottom of the second V-shaped groove 123 of the second inner side wall 122 on the right, a second cavity 125 is formed between the partition component 124, the first inner side wall 121 on the upper side and the second inner side walls 122 on the left and right sides, and a second cavity 125 is formed between the partition component 124, the first inner side wall 121 on the lower side and the second inner side walls 122 on the left and right sides, and at least one optical communication component 14 is provided in the second cavity 125, and the optical communication component 14 is an optical fiber ribbon;

[0045] The first fixing component 115 on the upper right side of the second transmission unit 2 is fixed to the first fixing groove 112 on the left side of the first outer wall 111 below the first transmission unit 1, the first fixing component 115 on the upper left side of the third transmission unit 3 is fixed to the first fixing groove 112 on the right side of the first outer wall 111 below the first transmission unit 1, the first fixing component 115 on the lower left side of the first transmission unit 1 is fixed to the first fixing groove 112 on the right side of the first outer wall 111 above the second transmission unit 2, and the first fixing component 115 on the lower right side of the first transmission unit 1 is fixed to the first fixing groove 112 on the left side of the first outer wall 111 above the third transmission unit 3.

[0046] The above-mentioned digital structure optical cable for communication is characterized in that the optical fiber ribbon is formed by at least two optical fibers being ribboned together. Example 3

[0047] like Figures 9 and 10 , and refer to Figures 2 to 4 A communication cable having a T-shaped structure, comprising a first transmission unit 1, a second transmission unit 2 and a third transmission unit 3, wherein the first transmission unit 1, the second transmission unit 2 and the third transmission unit 3 have the same structure and are arranged in a T-shaped shape, wherein the first transmission unit 1 is located at the top, and the second transmission unit 2 and the third transmission unit 3 are located at the left and right sides of the bottom, and wherein the first transmission unit 1 is composed of an outer sheath 11 and an inner sheath 12, wherein the outer sheath 11 is surrounded by two first outer side walls 111 and two second outer side walls 113, wherein a first cavity 116 is formed inside the outer sheath 11, wherein the two first outer side walls 111 are located at the upper and lower sides, and the two first outer side walls 111 are parallel, and the upper first outer side walls 112 are arranged on the upper side of the first outer side walls 113. An upward first fixing component 115 is respectively provided at both ends of the wall 111, and two first fixing grooves 112 opening upward are formed on the first outer side wall 111 between the two first fixing components 115 on the upper side, and a downward first fixing component 115 is respectively provided at both ends of the first outer side wall 111 on the lower side, and two first fixing grooves 112 opening downward are formed on the first outer side wall 111 between the two first fixing components 115 on the lower side, and two second outer side walls 113 are located on the left and right sides, and the second outer side walls 113 are V-shaped, and the left second outer side wall 113 forms a first V-shaped groove 114 opening to the left, and the right second outer side wall 113 forms a first V-shaped groove 114 opening to the right;

[0048] The inner protective layer 12 is located in the first cavity 116, and the first cavity 116 is surrounded by two first inner side walls 121 and two second inner side walls 122. The two first inner side walls 121 are located on the upper and lower sides, and the two first inner side walls 121 are parallel. The length of the first inner side wall 121 is greater than the distance between the bottoms of the two first V-shaped grooves 114. There is a gap between the upper first inner side wall 121 and the upper first outer side wall 111, and there is a gap between the lower first inner side wall 121 and the lower first outer side wall 111. The two second inner side walls 122 are located on the left and right sides, and the second inner side walls 122 are V-shaped. The second inner side wall 122 on the left side forms a second V-shaped groove 123 opening to the left, and the second inner side wall 122 on the right side forms a second V-shaped groove 123 opening to the right. Four partition components 124 are also provided between the two second inner side walls 122. The two partition components 124 are located on the left side and form an X with the second inner side wall 122 on the left side. Shape, other two partitioning components 124 are located on the right side, and form an X shape with the second inner sidewall 122 on the right side, a second cavity 125 is formed between the partitioning component 124 on the upper left side, the second inner sidewall 122 on the left side and the first inner sidewall 121 on the top, a second cavity 125 is formed between the partitioning component 124 on the left side below, the second inner sidewall 122 on the left side and the first inner sidewall 121 below, a second cavity 125 is formed between the partitioning component 124 on the right side above, the second inner sidewall 122 on the right side and the first inner sidewall 121 on the top, a second cavity 125 is formed between the partitioning component 124 on the right side below, the second inner sidewall 122 on the right side and the first inner sidewall 121 below, a second cavity 125 is formed between the four partitioning components 124, a loose tube 13 is provided in the second cavity 125, at least one optical communication component 14 is provided in the loose tube 13, and the optical communication component 14 is an optical fiber;

[0049] The first fixing component 115 on the upper right side of the second transmission unit 2 is fixed to the first fixing groove 112 on the left side of the first outer side wall 111 below the first transmission unit 1, the first fixing component 115 on the upper left side of the third transmission unit 3 is fixed to the first fixing groove 112 on the right side of the first outer side wall 111 below the first transmission unit 1, the first fixing component 115 on the lower left side of the first transmission unit 1 is fixed to the first fixing groove 112 on the right side of the first outer side wall 111 above the second transmission unit 2, the first fixing component 115 on the lower right side of the first transmission unit 1 is fixed to the first fixing groove 112 on the left side of the first outer side wall 111 above the third transmission unit 3, and a connecting component 4 is provided below the second transmission unit 2 and the third transmission unit 3, the connecting component 4 is composed of a connecting component body 41 and two second fixing components 43, the two second fixing components 43 are respectively located on the upper walls at both ends of the connecting component body 41, and the upper wall of the connecting component body 41 between the two second fixing components 43 is provided with two second fixing grooves 42;

[0050] The second fixing component 43 on the left is fixed to the first fixing groove 112 on the right side of the first outer side wall 111 below the second transmission unit 2, the second fixing component 43 on the right side is fixed to the first fixing groove 112 on the left side of the first outer side wall 111 below the third transmission unit 3, the first fixing component 115 below the right side of the second transmission unit 2 is fixed to the second fixing groove 42 on the left side of the second fixing component 43, the first fixing component 115 below the left side of the third transmission unit 3 is fixed to the second fixing groove 42 on the right side of the second fixing component 43, and an installation hole 5 for overhead wiring is formed between the first transmission unit 1, the second transmission unit 2, the third transmission unit 3 and the connecting component 4, and wiring can be performed by passing the installation wire 6 through the installation hole 5.

[0051] The digital structure optical cable for communication described in the present application is characterized in that the material of the outer sheath 11 is high-density polyethylene.

[0052] The digital structure optical cable for communication described in the present application is characterized in that the material of the inner sheath 12 is high-density polyethylene.

[0053] The V-shaped optical cable for communication described in the present application is characterized in that: the angle of the first V-shaped groove 114 is greater than the angle of the second V-shaped groove 123, or the first V-shaped groove 114 and the second V-shaped groove 123 are in contact with each other, or the angle of the first V-shaped groove 114 is smaller than the angle of the second V-shaped groove 123.

[0054] The V-shaped optical cable for communication described in the present application is characterized in that when the angle of the first V-shaped groove 114 is greater than the angle of the second V-shaped groove 123 , the two ends of the first inner side wall 121 respectively abut against the corresponding second outer side wall 113 .

[0055] The digital structure optical cable for communication described in the present application is characterized in that the optical fiber is a multimode optical fiber or a single-mode optical fiber.

[0056] This application has the following beneficial effects:

[0057] 1. The inner sheath 12 is located inside the outer sheath 11, and there is a gap between the inner sheath 12 and the outer sheath 11, so that when the first transmission unit 1 or the second transmission unit 2 or the third transmission unit 3 is subjected to upper and lower side pressure, the pressure acts on the outer sheath 11 but not on the inner sheath 12, thereby protecting the internal optical communication components 14 from being affected.

[0058] 2. The second outer side wall 113 is V-shaped. When the first transmission unit 1 or the second transmission unit 2 or the third transmission unit 3 is subjected to pressure from the upper and lower sides, the pressure can be offset by shrinking the angle of the first V-shaped groove 114. When the first transmission unit 1 or the second transmission unit 2 or the third transmission unit 3 is subjected to pressure from the left and right sides, the pressure can be offset by expanding the angle of the first V-shaped groove 114, thereby improving the compression resistance of the outer sheath 11 and the impact resistance of the first transmission unit 1 or the second transmission unit 2 or the third transmission unit 3.

[0059] 3. When both ends of the first inner side wall 121 are respectively against the corresponding second outer side wall 113, the outer sheath 11 and the inner sheath 12 are more firmly fixed, preventing the internal optical communication component 14 from being affected by possible vibration during overhead installation.

[0060] 4. The first transmission unit 1 and the second transmission unit 2 are fixed to each other, and the first transmission unit 1 and the third transmission unit 3 are fixed to each other, so that the structure of the optical cable is more solid.

[0061] 5. The connection component 4 is provided to further improve the structural firmness of the optical cable.

[0062] 6. The formed installation hole 5 does not require any fixing parts for laying, which facilitates the overhead laying of the optical cable.

[0063] 7. The structure is simple, the inner protective layer 12 and the outer protective layer 11 are integrally formed, the production is convenient and the cost is low.

[0064] The above embodiments are only preferred technical solutions of the present utility model and should not be regarded as limitations of the present utility model. The protection scope of the present utility model shall be the technical solution recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solution recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present utility model.

Claims

1. A communication cable having a T-shaped structure, comprising a first transmission unit (1), a second transmission unit (2) and a third transmission unit (3), wherein the first transmission unit (1), the second transmission unit (2) and the third transmission unit (3) have the same structure and are arranged in a T-shaped structure, wherein the first transmission unit (1) is located at the top, and the second transmission unit (2) and the third transmission unit (3) are located at the left and right sides of the bottom, and wherein: The first transmission unit (1) is composed of an outer protective layer (11) and an inner protective layer (12); the outer protective layer (11) is surrounded by two first outer side walls (111) and two second outer side walls (113); a first cavity (116) is formed inside the outer protective layer (11); the two first outer side walls (111) are located at upper and lower sides, and the two first outer side walls (111) are parallel; two ends of the upper first outer side wall (111) are each provided with an upwardly directed first fixing component (115); the first outer side wall (111) between the two upper first fixing components (115) forms two openings facing upwardly. A first fixing groove (112) is formed on the upper side, two ends of the first outer side wall (111) on the lower side are each provided with a downwardly facing first fixing component (115), the first outer side wall (111) between the two first fixing components (115) on the lower side forms two first fixing grooves (112) opening downwardly, two second outer side walls (113) are located on the left and right sides, the second outer side walls (113) are V-shaped, the left second outer side wall (113) forms a first V-shaped groove (114) opening to the left, and the right second outer side wall (113) forms a first V-shaped groove (114) opening to the right; The inner protective layer (12) is located in the first cavity (116). The first cavity (116) is surrounded by two first inner side walls (121) and two second inner side walls (122). The two first inner side walls (121) are located at the upper and lower sides, and the two first inner side walls (121) are parallel. The length of the first inner side wall (121) is greater than the distance between the bottoms of the two first V-shaped grooves (114). There is a gap between the upper first inner side wall (121) and the upper first outer side wall (111), and there is a gap between the lower first inner side wall (121) and the lower first outer side wall (111). The two second inner side walls (122) are located at the left and right sides. The second inner side walls (122) are V-shaped. The left second inner side wall (122) forms a second V-shaped groove (123) opening to the left, and the right second inner side wall (122) forms a second V-shaped groove (123) opening to the right. At least one optical transmission component is provided in the inner protective layer (12); The first fixing component (115) on the upper right side of the second transmission unit (2) is fixed to the first fixing groove (112) on the left side of the first outer side wall (111) below the first transmission unit (1); the first fixing component (115) on the upper left side of the third transmission unit (3) is fixed to the first fixing groove (112) on the right side of the first outer side wall (111) below the first transmission unit (1); the first fixing component (115) on the lower left side of the first transmission unit (1) is fixed to the first fixing groove (112) on the right side of the first outer side wall (111) above the second transmission unit (2); the first fixing component (115) on the lower right side of the first transmission unit (1) is fixed to the first fixing groove (112) on the left side of the first outer side wall (111) above the third transmission unit (3); and the included angle of the first V-shaped groove (114) is greater than the included angle of the second V-shaped groove (123).

2. A digital structure optical cable for communication products according to claim 1, characterized in that: Two ends of the first inner side wall (121) respectively abut against the corresponding second outer side wall (113).

3. A digital structure optical cable for communication according to claim 1 or claim 2, characterized in that: A partition component (124) is also provided between the two second inner side walls (122); the left end of the partition component (124) is connected to the bottom of the second V-shaped groove (123) of the left second inner side wall (122); the right end of the partition component (124) is connected to the bottom of the second V-shaped groove (123) of the right second inner side wall (122); a second cavity (125) is formed between the partition component (124), the upper first inner side wall (121) and the left and right second inner side walls (122); a second cavity (125) is formed between the partition component (124), the lower first inner side wall (121) and the left and right second inner side walls (122); and the optical transmission component is located in the second cavity (125).

4. A digital structure optical cable for communication according to claim 1 or claim 2, characterized in that: Four partitioning components (124) are further provided between the two second inner side walls (122), two partitioning components (124) are located on the left side and form an X shape with the second inner side wall (122) on the left side, and another two partitioning components (124) are located on the right side and form an X shape with the second inner side wall (122) on the right side, a second cavity (125) is formed between the partitioning component (124) on the upper left side, the second inner side wall (122) on the left side and the upper first inner side wall (121), and the partitioning component (124) on the lower left side, the second inner side wall (122) on the left side and A second cavity (125) is formed between the first inner side walls (121) at the bottom, a second cavity (125) is formed between the partition component (124) at the top right, the second inner side wall (122) at the right and the first inner side wall (121) at the top, a second cavity (125) is formed between the partition component (124) at the bottom right, the second inner side wall (122) at the right and the first inner side wall (121) at the bottom, a second cavity (125) is formed between the four partition components (124), and the optical transmission component is located in the second cavity (125).

5. A digital structure optical cable for communication according to claim 4, characterized in that: The optical transmission component is composed of a loose tube (13) and at least one optical communication component (14) in the loose tube (13); the optical communication component (14) is an optical fiber or an optical fiber ribbon.

6. A digital structure optical cable for communication according to claim 5, characterized in that: A connecting component (4) is provided below the second transmission unit (2) and the third transmission unit (3), the connecting component (4) comprising a connecting component body (41) and two second fixing components (43), the two second fixing components (43) being respectively located on the upper walls at both ends of the connecting component body (41), and two second fixing grooves (42) being provided on the upper wall of the connecting component body (41) between the two second fixing components (43); The second fixing component (43) on the left side is fixed to the first fixing groove (112) on the right side of the first outer wall (111) below the second transmission unit (2); the second fixing component (43) on the right side is fixed to the first fixing groove (112) on the left side of the first outer wall (111) below the third transmission unit (3); the first fixing component (115) on the right side below the second transmission unit (2) is fixed to the second fixing groove (42) on the left side of the second fixing component (43); the first fixing component (115) on the left side below the third transmission unit (3) is fixed to the second fixing groove (42) on the right side of the second fixing component (43); and a mounting hole (5) for overhead wiring is formed between the first transmission unit (1), the second transmission unit (2), the third transmission unit (3) and the connecting component (4).

7. A digital structure optical cable for communication according to claim 6, characterized in that: The material of the outer protective layer (11) is high-density polyethylene.

8. A digital structure optical cable for communication according to claim 7, characterized in that: The material of the inner protective layer (12) is high-density polyethylene.

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