Bite-resistant lead-in cable

Abstract

The application belongs to the field of optical cable, and relates to an introduction optical cable capable of preventing biting and pecking, which has a sub-cable core, and is characterized in that: the sub-cable core is composed of a first butterfly-shaped unit, a second butterfly-shaped unit and two electric communication components; the cross sections of the first butterfly-shaped unit and the second butterfly-shaped unit are both in the shape of a concave character; in the sub-cable core, the first butterfly-shaped unit is in a normal position, the second butterfly-shaped unit is in a normal position or is embedded in a large concave groove of the first butterfly-shaped unit in an inverted position, and the two electric communication components are embedded in small concave grooves of the second butterfly-shaped unit; and the cross section of the outer edge of the sub-cable core is in the shape of a rectangle. The application has the following main beneficial technical effects: easy to manufacture, simple structure, compactness, better mechanical performance, better biting and pecking prevention, suitable for application in various occasions, and suitable for self-supporting laying.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of optical cable, in particular discloses an introduction optical cable which can prevent biting and pecking. BACKGROUND

[0002] In the prior art, the butterfly-shaped introduction optical cable or butterfly-shaped introduction unit commonly used has two sizes, one of which has a height of 3 mm and a width of 2 mm, and the other of which has a height of 2 mm and a width of 1.6 mm. They can be matched with the optical fiber connectors that are widely used at present, and the optical fiber connectors can be inserted into the optical transceiver ports of the optical equipment. The shape of the butterfly-shaped introduction optical cable or butterfly-shaped introduction unit can be referred to the Communication Industry Standard of the People's Republic of China YD / 1997-2009 "Butterfly-shaped Introduction Optical Cable for Access Network". In the prior art, there is only one size type of butterfly-shaped introduction optical cable or butterfly-shaped introduction unit in the same optical cable. However, in actual use, the optical equipment purchased by users generally only has one type of optical interface, and the size of the optical interface is relatively random. Different manufacturers have different optical interfaces. Therefore, the single structure of the optical cable makes it difficult for users to use smoothly, which brings trouble to users, and also affects the sales and use of the optical cable.

[0003] CN116840990A discloses a butterfly-shaped introduction optical cable with two types of introduction units, which has a cable core composed of four sub-units. Each sub-unit is composed of a unit shell, two first type introduction units and one second type introduction unit located in the unit shell, and the first type introduction units are located on both sides of the second type introduction unit. The cross-sectional outer edge of the unit shell is a regular octagon. Four unit shells are combined to form a central hole with a square cross-section, and the outer part of the joint between adjacent unit shells forms an outer cavity. The unit shells of the four sub-units are integrally formed, or the unit shells of the four sub-units are formed into a whole by bonding or fusion. It has the following main beneficial technical effects: more introduction units, better adaptability and matching with optical interfaces of optical equipment, higher space utilization, and simultaneous transmission of optical and electrical signals.

[0004] CN116626823A discloses an optical cable easy to identify and recognize for indoor and outdoor use, which comprises at least two butterfly-shaped optical cable units connected by connecting parts between adjacent butterfly-shaped optical cable units. There are at least two different cross-sectional shapes of skin wires in the two or more butterfly-shaped optical cable units that make up the optical cable, and the two or more butterfly-shaped optical cable units that make up the optical cable are arranged asymmetrically. It integrates multiple columns of butterfly-shaped optical cable units, and the skin wires of the multiple columns of butterfly-shaped optical cable units have different shapes and are arranged asymmetrically. Installation and debugging personnel can identify the input and output corresponding to each optical cable by naked eye, improving installation and debugging efficiency and saving manpower.

[0005] CN119395840A discloses a fiber optic ribbon cable with special-shaped butterfly-shaped lead-in units, having a plurality of first optical fiber ribbons, a plurality of special-shaped butterfly-shaped lead-in units, four reinforcing components, a frame component, and an outer sheath. The special-shaped butterfly-shaped lead-in units are embedded on the frame strips of the frame component, and the special-shaped butterfly-shaped lead-in units and the frame component form a cable core. The cross section of the cable core is rectangular. The reinforcing components are located in the extension cavity. All the first optical fiber ribbons are distributed in the central cavity in a stacked manner. The outer sheath covers the outside of the cable core. The fiber core density is higher, the manufacturing is easier, the number of butterfly-shaped lead-in units is larger, the disassembly and assembly are more convenient, the space utilization is higher, it is suitable for various optical fiber connectors in the prior art, and the compression resistance and buffering capacity are stronger.

[0006] CN116609904A discloses a compact butterfly-shaped lead-in optical cable, which has a first type of butterfly-shaped lead-in unit, two identical second types of butterfly-shaped lead-in units, and two identical power transmission units. The compact butterfly-shaped lead-in optical cable also has a special-shaped integrated and left-right symmetrical protection component. The first type of butterfly-shaped lead-in unit, the second type of butterfly-shaped lead-in unit, and the power transmission unit are located in the inner cavity inside the protection component. The compact butterfly-shaped lead-in optical cable has a left-right symmetrical structure. The compact butterfly-shaped lead-in optical cable is easy to manufacture, consumes less material, has a smaller size, occupies less space, weighs less, and has a lower cost.

[0007] However, the prior art has the following defects: the structure is too complex, not suitable for access in the same user, the cable is too messy when accessing the same user, not suitable for laying in a cuboid slot / tube, occupies too much space, the structure is relatively thick, the cost is relatively high, and the anti-biting and anti-pecking performance of the optical cable system needs to be improved. SUMMARY

[0008] To solve the above problems, the purpose of the present application is to disclose an anti-biting and anti-pecking lead-in optical cable, which is realized by the following technical scheme.

[0009] An anti-biting and anti-pecking lead-in optical cable has a sub-cable core, wherein the sub-cable core is composed of a first butterfly-shaped unit, a second butterfly-shaped unit, and two electrical communication components. The cross sections of the first butterfly-shaped unit and the second butterfly-shaped unit are both concave. In the sub-cable core, the first butterfly-shaped unit is upright, the second butterfly-shaped unit is embedded in the large concave groove of the first butterfly-shaped unit in an upright or inverted manner, and the two electrical communication components are embedded in the small concave groove of the second butterfly-shaped unit. The cross section of the outer edge of the sub-cable core is rectangular.

[0010] The anti-biting and anti-pecking lead-in optical cable described above further has an outer sheath, which covers the outside of the sub-cable core. The cross section of the outer edge of the outer sheath is rectangular.

[0011] An introduction cable capable of preventing biting and pecking, having a total cable core, characterized in that: the total cable core is formed by stacking a plurality of sub-cable cores up and down; or, the total cable core is formed by arranging a plurality of sub-cable cores side by side; or, the total cable core is formed by a plurality of stacked sub-cable cores, the stacked sub-cable cores are formed by stacking a plurality of sub-cable cores up and down, and the plurality of stacked sub-cable cores are arranged side by side; the cross section of the outer edge of the total cable core is rectangular; the sub-cable core is composed of a first butterfly-shaped unit, a second butterfly-shaped unit, and two electrical communication components, the cross sections of the first butterfly-shaped unit and the second butterfly-shaped unit are both concave, in the sub-cable core, the first butterfly-shaped unit is upright, the second butterfly-shaped unit is upright or inverted and embedded in the large recess of the first butterfly-shaped unit, and the two electrical communication components are embedded in the small recess of the second butterfly-shaped unit, the cross section of the outer edge of the sub-cable core is rectangular.

[0012] The introduction cable capable of preventing biting and pecking as described above, characterized in that:

[0013] An outer sheath, the outer sheath is wrapped outside the total cable core, the cross section of the outer edge of the outer sheath is rectangular.

[0014] The introduction cable capable of preventing biting and pecking as described above, characterized in that: in the sub-cable core, the sidewall of the first butterfly-shaped unit has a reinforcing member, the bottom wall has an optical communication component, and the optical communication component has at least one optical fiber.

[0015] Further, the introduction cable capable of preventing biting and pecking as described above, characterized in that: the bottom wall further has a reinforcing strip, the reinforcing strip is located above and below the optical communication component, and the reinforcing strip and the reinforcing member are connected as a whole.

[0016] The introduction cable capable of preventing biting and pecking as described above, characterized in that: in the sub-cable core, the sidewall of the second butterfly-shaped unit has a reinforcing member, the bottom wall has an optical communication component, and the optical communication component has at least one optical fiber.

[0017] Further, the introduction cable capable of preventing biting and pecking as described above, characterized in that: the bottom wall has a reinforcing strip, the reinforcing strip is located above and below the optical communication component, and the reinforcing strip and the reinforcing member are connected as a whole.

[0018] The application has the following main beneficial technical effects: easy to manufacture, simple structure, compact, better mechanical properties, better protection against biting and pecking, suitable for various applications, and suitable for self-supporting laying. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A schematic diagram of the sectional structure of a first butterfly-shaped unit used in Example 1 after dissection.

[0020] Figure 2 A schematic diagram of the sectional structure of a second butterfly-shaped unit used in Example 1 after dissection. Figure 1Enlarged cross-sectional structural schematic.

[0021] Figure 3 Enlarged cross-sectional structural schematic of a segment of the dissected second butterfly element used in Example 1.

[0022] Figure 4 Enlarged cross-sectional structural schematic of a segment of the dissected second butterfly element used in Example 1. Figure 3 Enlarged cross-sectional structural schematic.

[0023] Figure 5 Enlarged cross-sectional structural schematic of a segment of the dissected second butterfly element used in Example 1.

[0024] Figure 6 Enlarged cross-sectional structural schematic of a segment of the dissected second butterfly element used in Example 1. Figure 5 Enlarged cross-sectional structural schematic.

[0025] Figure 7 Enlarged cross-sectional structural schematic of a segment of the dissected second butterfly element used in Example 1.

[0026] Figure 8 Enlarged cross-sectional structural schematic of a segment of the dissected second butterfly element used in Example 1. Figure 7 Enlarged cross-sectional structural schematic.

[0027] Figure 9 Enlarged cross-sectional structural schematic of a segment of the dissected second butterfly element used in Example 1.

[0028] Figure 10 Enlarged cross-sectional structural schematic of a segment of the dissected second butterfly element used in Example 1.

[0029] Figure 11 Enlarged cross-sectional structural schematic of a segment of the dissected second butterfly element used in Example 1.

[0030] Figure 12 Enlarged cross-sectional structural schematic of a segment of the dissected second butterfly element used in Example 1.

[0031] Figure 13 Enlarged cross-sectional structural schematic of a segment of the dissected second butterfly element used in Example 1. DETAILED DESCRIPTION

[0032] In order that the manner in which the application is to be understood and carried out by those of ordinary skill in the art, the following detailed description and should be read, taken in conjunction with the accompanying drawings, in which:

[0033] In the figure: 1 - first butterfly unit, 2 - second butterfly unit, 3 - optical communication component, 4 - electrical communication component, 5 - outer sheath, 10 - first rectangular cavity, 11 - first side wall, 12 - second side wall, 13 - third side wall, 111 - first reinforcing member, 121 - first reinforcing strip, 122 - second reinforcing strip, 131 - third reinforcing member, 31 - adhesive layer, 32 - optical fiber, 20 - second rectangular cavity, 21 - first wall body, 22 - second wall body, 23 - third wall body, 211 - first reinforcing member, 221 - first reinforcing strip, 222 - second reinforcing strip, 231 - third reinforcing member, 41 - conductor, 42 - insulating layer.

[0034] Embodiment 1: see Figures 1 to 6 An anti-biting introduction optical cable, having a cable core and an outer sheath 5, the cable core is composed of a first butterfly unit 1, a second butterfly unit 2 and two electrical communication components 4, the electrical communication component 4 is composed of a conductor 41 and an insulating layer 42, the insulating layer 42 covers the conductor 41, characterized in that:

[0035] The first butterfly unit 1 is composed of a first side wall 11, a second side wall 12, a third side wall 13, a first reinforcing member 111, a third reinforcing member 131 and an optical communication component 3, the first side wall 11 is parallel to the third side wall 13, the first side wall 11 is perpendicular to the second side wall 12, one end of the first side wall 11 is connected to one end of the second side wall 12, one end of the third side wall 13 is connected to the other end of the second side wall 12, the first reinforcing member 111 is located in the first side wall 11, the optical communication component 3 is located in the second side wall 12, the third reinforcing member 131 is located in the third side wall 13, the optical communication component 3 is composed of a plurality of optical fibers 32 arranged in an array and not in contact with each other and an adhesive layer 31, the adhesive layer 31 covers all the optical fibers 32, the first side wall 11, the second side wall 12 and the third side wall 13 form a first rectangular cavity 10 with an open upper portion;

[0036] The second butterfly unit 2 is composed of a first wall body 21, a second wall body 22, a third wall body 23, a first reinforcing member 211, a third reinforcing member 231 and an optical communication component 3, the first wall body 21 is parallel to the third wall body 23, the first wall body 21 is perpendicular to the second wall body 22, one end of the first wall body 21 is connected to one end of the second wall body 22, one end of the third wall body 23 is connected to the other end of the second wall body 22, the first reinforcing member 211 is located in the first wall body 21, the optical communication component 3 is located in the second wall body 22, the third reinforcing member 231 is located in the third wall body 23, the optical communication component 3 is composed of a plurality of optical fibers 32 arranged in an array and not in contact with each other and an adhesive layer 31, the adhesive layer 31 covers all the optical fibers 32, the first wall body 21, the second wall body 22 and the third wall body 23 form a second rectangular cavity 20 with an open upper portion;

[0037] The second butterfly unit 2 is embedded in the first rectangular cavity 10, the first wall body 21 is in close contact with the first side wall 11, the second wall body 22 is in close contact with the second side wall 12, the third wall body 23 is in close contact with the third side wall 13, the two electrical communication components 4 are arranged side by side in the second rectangular cavity 20, and the cross section of the sub-cable core is rectangular.

[0038] Embodiment 2: please see Figures 7 to 8 and refer to Figures 1 to 6 An anti-biting and pecking entry optical cable, which is basically the same as Embodiment 1, except that the third wall body 23 is in close contact with the first side wall 11, the other end of the first wall body 21 is in close contact with the second side wall 12, the other end of the third wall body 23 is in close contact with the second side wall 12, and the first wall body 21 is in close contact with the third side wall 13.

[0039] Embodiment 3: please see Figure 9 and refer to Figures 1 to 8 An anti-biting and pecking entry optical cable, which is basically the same as Embodiment 1, except that the second side wall 12 further has a first reinforcing strip 121 and a second reinforcing strip 122, the two ends of the first reinforcing strip 121 are respectively connected to the first reinforcing member 111 and the third reinforcing member 131, the two ends of the second reinforcing strip 122 are respectively connected to the first reinforcing member 111 and the third reinforcing member 131, the first reinforcing strip 121 is located above the second reinforcing strip 122, and the optical communication component 3 is located between the first reinforcing strip 121 and the second reinforcing strip 122.

[0040] Embodiment 4: please see Figure 10 and refer to Figures 1 to 9 An anti-biting and pecking entry optical cable, which is basically the same as Embodiment 1, except that the second wall body 22 further has a first reinforcing strip 221 and a second reinforcing strip 222, the two ends of the first reinforcing strip 221 are respectively connected to the first reinforcing member 211 and the third reinforcing member 231, the two ends of the second reinforcing strip 222 are respectively connected to the first reinforcing member 211 and the third reinforcing member 231, the first reinforcing strip 221 is located above the second reinforcing strip 222, and the optical communication component 3 is located between the first reinforcing strip 221 and the second reinforcing strip 222.

[0041] The first butterfly unit 1 of Embodiment 3 and the second butterfly unit 2 of Embodiment 4 can be applied separately or simultaneously in Embodiment 1 and / or Embodiment 2, and can also be applied separately or simultaneously in any of the following embodiments.

[0042] Embodiment 5: please see Figure 11 and refer to Figures 1 to 10An entry cable capable of preventing biting, pecking and nipping, comprising a total cable core and an outer sheath 5, the total cable core is composed of two sub-cable cores arranged in a stacked manner, the sub-cable core is the sub-cable core in any one of the above-mentioned embodiments, the cross section of the total cable core is rectangular, the outer sheath 5 covers the total cable core, and the outer edge of the outer sheath 5 is in the shape of a cuboid.

[0043] Embodiment 6: see Figure 12 , and refer to Figures 1 to 10 An entry cable capable of preventing biting, pecking and nipping, comprising a total cable core and an outer sheath 5, the total cable core is composed of two sub-cable cores arranged in a side-by-side manner, the sub-cable core is the sub-cable core in any one of the above-mentioned embodiments, the cross section of the total cable core is rectangular, the outer sheath 5 covers the total cable core, and the outer edge of the outer sheath 5 is in the shape of a cuboid.

[0044] Embodiment 7: see Figure 13 , and refer to Figures 1 to 10 An entry cable capable of preventing biting, pecking and nipping, combining Embodiment 5 and Embodiment 6, comprising a total cable core and an outer sheath 5, the total cable core is composed of four sub-cable cores, two sub-cable cores are arranged in a stacked manner to form a stacked sub-cable core, and two stacked sub-cable cores are arranged in a side-by-side manner to form the total cable core; the sub-cable core is the sub-cable core in any one of the above-mentioned embodiments, the cross section of the total cable core is rectangular, the outer sheath 5 covers the total cable core, and the outer edge of the outer sheath 5 is in the shape of a cuboid.

[0045] The present application is not limited to the above-mentioned Embodiment 5 to Embodiment 7, but can also be formed by stacking more sub-cable cores to form a total cable core, or arranging more sub-cable cores in a side-by-side manner to form a total cable core, or stacking multiple sub-cable cores to form a stacked sub-cable core, and arranging multiple stacked sub-cable cores in a side-by-side manner to form a total cable core.

[0046] In the present application, the cross section of the first butterfly-shaped unit 1 is in the shape of a concave character, the first side wall 11 and the third side wall 13 are collectively referred to as side walls, the second side wall 12 is referred to as a bottom wall, the first rectangular cavity 10 is referred to as a large concave groove, and the direction of the large concave groove is referred to as a positive direction when the large concave groove is placed upward, or as a positive direction, and the direction of the large concave groove is referred to as a negative direction when the large concave groove is placed downward, or as a negative direction or an inverted direction.

[0047] In the present application, the cross section of the second butterfly-shaped unit 2 is in the shape of a concave character, the first wall body 21 and the third wall body 23 are collectively referred to as side wall bodies, the second wall body 22 is referred to as a bottom wall body, the second rectangular cavity 20 is referred to as a small concave groove, and the direction of the small concave groove is referred to as a positive direction when the small concave groove is placed upward, or as a positive direction, and the direction of the small concave groove is referred to as a negative direction when the small concave groove is placed downward, or as a negative direction or an inverted direction.

[0048] In the present application, when the strength and / or hardness are sufficient, the side wall can not have a reinforcing member.

[0049] In the present application, when the strength and / or hardness are sufficient, the bottom wall can not have a reinforcing strip.

[0050] In the present application, the sidewall body can not have a reinforcing member when it has sufficient strength and / or rigidity.

[0051] In the present application, the bottom wall body can not have a reinforcing strip when it has sufficient strength and / or rigidity.

[0052] In the present application, the optical communication component 3 can not be an optical fiber ribbon, but only a plurality of optical fibers 32 distributed in a scattered manner, or at least one optical fiber 32.

[0053] In the present application, the bottom wall and the bottom wall body can have a tear opening that can tear the bottom wall and the bottom wall body, and after tearing, the optical communication component 3 can be taken out.

[0054] The introduction optical cable capable of preventing biting, pecking and nipping in the present application has a sub-cable core and an outer sheath, and the outer sheath covers the sub-cable core. The sub-cable core is composed of a first butterfly-shaped unit, a second butterfly-shaped unit and two electrical communication components. The cross sections of the first butterfly-shaped unit and the second butterfly-shaped unit are both concave. The second butterfly-shaped unit is embedded in the large concave groove of the first butterfly-shaped unit. The two electrical communication components are embedded in the small concave grooves of the second butterfly-shaped unit. The cross section of the outer edge of the sub-cable core is rectangular, and the cross section of the outer edge of the outer sheath is rectangular.

[0055] The introduction optical cable capable of preventing biting, pecking and nipping in the present application has a sub-cable core and an outer sheath, and the outer sheath covers the sub-cable core. The sub-cable core is composed of a first butterfly-shaped unit, a second butterfly-shaped unit and two electrical communication components. The cross sections of the first butterfly-shaped unit and the second butterfly-shaped unit are both concave. The second butterfly-shaped unit is embedded in the large concave groove of the first butterfly-shaped unit. The two electrical communication components are embedded in the small concave grooves of the second butterfly-shaped unit. The cross section of the outer edge of the sub-cable core is rectangular, and the cross section of the outer edge of the outer sheath is rectangular.

[0056] The introduction optical cable capable of preventing biting, pecking and nipping in the present application has a sub-cable core and an outer sheath, and the outer sheath covers the sub-cable core. The sub-cable core is composed of a first butterfly-shaped unit, a second butterfly-shaped unit and two electrical communication components. The cross sections of the first butterfly-shaped unit and the second butterfly-shaped unit are both concave. The second butterfly-shaped unit is embedded in the large concave groove of the first butterfly-shaped unit. The two electrical communication components are embedded in the small concave grooves of the second butterfly-shaped unit. The cross section of the outer edge of the sub-cable core is rectangular, and the cross section of the outer edge of the outer sheath is rectangular.

[0057] The introduction optical cable capable of preventing biting, pecking and nipping in the present application has a sub-cable core and an outer sheath, and the outer sheath covers the sub-cable core. The sub-cable core is composed of a first butterfly-shaped unit, a second butterfly-shaped unit and two electrical communication components. The cross sections of the first butterfly-shaped unit and the second butterfly-shaped unit are both concave. The second butterfly-shaped unit is embedded in the large concave groove of the first butterfly-shaped unit. The two electrical communication components are embedded in the small concave grooves of the second butterfly-shaped unit. The cross section of the outer edge of the sub-cable core is rectangular, and the cross section of the outer edge of the outer sheath is rectangular.

[0058] Further, the introduction optical cable capable of preventing biting, pecking and nipping in the present application has a sub-cable core and an outer sheath, and the outer sheath covers the sub-cable core. The sub-cable core is composed of a first butterfly-shaped unit, a second butterfly-shaped unit and two electrical communication components. The cross sections of the first butterfly-shaped unit and the second butterfly-shaped unit are both concave. The second butterfly-shaped unit is embedded in the large concave groove of the first butterfly-shaped unit. The two electrical communication components are embedded in the small concave grooves of the second butterfly-shaped unit. The cross section of the outer edge of the sub-cable core is rectangular, and the cross section of the outer edge of the outer sheath is rectangular.

[0059] The reinforcing strip and the reinforcing member are connected as a whole, and actually form a frame, which can more optimally resist external lateral pressure, improve mechanical properties, and of course improve tensile force, impact resistance, etc.

[0060] The second butterfly unit has a reinforcing member in the side wall and a light communication component in the bottom wall, and the light communication component has at least one optical fiber.

[0061] Further, the second butterfly unit has a reinforcing strip in the bottom wall, and the reinforcing strip is above and below the light communication component, and the reinforcing strip and the reinforcing member are connected as a whole.

[0062] The reinforcing strip and the reinforcing member are connected as a whole, and actually form a frame, which can more optimally resist external lateral pressure, improve mechanical properties, and of course improve tensile force, impact resistance, etc.

[0063] Further, the second butterfly unit has a reinforcing strip in the bottom wall, and the reinforcing strip is above and below the light communication component, and the reinforcing strip and the reinforcing member are connected as a whole.

[0064] Further, the second butterfly unit has a reinforcing strip in the bottom wall, and the reinforcing strip is above and below the light communication component, and the reinforcing strip and the reinforcing member are connected as a whole.

[0065] In the application, the sub-cable core can be used alone, and is closely embedded with each other to form an integrated structure, which cannot be separated by applying sufficient force, so it can be conveniently entered into the house, and two types of butterfly-shaped units, i.e. the first butterfly-shaped unit and the second butterfly-shaped unit, are entered into the same house, so that the flexibility of use is greatly improved, and the user does not need to purchase additional optical fiber connectors, and can be matched with related optical equipment in the prior art, improving the versatility, and at least two optical access lines can be provided, meeting the subsequent expansion and multiple function requirements of the user; the electrical communication component can be accessed as a telephone line, a control line, etc., which makes up for the defect that the single butterfly-shaped unit cannot transmit weak current in the prior art. Of course, in the application, when the first butterfly-shaped unit does not have a reinforcing strip, the reinforcing member made of metal can also be used as a weak current transmission line. Similarly, when the second butterfly-shaped unit does not have a reinforcing strip, the reinforcing member made of metal can also be used as a weak current transmission line. The transmission performance and route of the weak current are improved.

[0066] In the application, the reinforcing strip and the reinforcing member are connected as a whole, and the whole covers the optical communication component in the first butterfly-shaped unit; the reinforcing strip and the reinforcing member are connected as a whole, and the whole covers the optical communication component in the second butterfly-shaped unit; when the reinforcing strip, the reinforcing member, the reinforcing strip and the reinforcing member are made of steel, iron, aluminum, copper, alloy, glass fiber reinforced plastic, etc., they have the function of preventing biting, seizing and pecking; in the sub-cable core, if the large groove is in the normal position and the small groove is in the reverse position, the electrical communication component in the small groove also has the function of preventing biting, seizing and pecking.

[0067] In the application, the outer sheath can be made of steel, iron, aluminum, copper, alloy, glass fiber reinforced plastic, etc. In this case, the optical cable further improves the performance of preventing biting, seizing and pecking. Of course, in practice, the outer sheath can also be made of plastic in the prior art. When used, it is laid in a steel pipe, a wiring slot or other wiring device with a square cross section. Since the wiring device itself has high strength, hardness, etc., the optical cable also has the performance of preventing biting, seizing and pecking. The hard outer sheath or wiring device makes it difficult for mice and other animals to bite, so it is not bitten again, thus achieving the effect of preventing biting and seizing. Similarly, ants cannot bite, so it also has the effect of preventing biting. In addition, the hard material makes it difficult for birds to peck, so it also has the effect of preventing pecking.

[0068] The application has a compact structure, is very suitable for indoor and outdoor laying, and has at least two butterfly-shaped units, so that the number of tensile elements is increased compared with the butterfly-shaped lead-in optical cable in the prior art, the tensile force is larger, and it is suitable for self-supporting laying, so the application range is improved.

[0069] In the application, the sub-cable core of the two different types of butterfly-shaped units can be molded at one time, and the two butterfly-shaped units are embedded with each other during production, and the electrical communication component is placed, which is completed at the same time, and the outer sheath can also be extruded or sleeved outside, so the production is very convenient and fast.

[0070] In the present application, the material of the side wall, the bottom wall, the side wall body and the bottom wall body is plastic.

[0071] In the present application, the material of the first reinforcing member, the first reinforcing strip, the second reinforcing strip, the third reinforcing member, the first reinforcing member, the first reinforcing strip, the second reinforcing strip, and the third reinforcing member can be steel, iron, aluminum, copper, glass fiber reinforced plastic rod, aramid yarn, etc., or the above-mentioned different materials can also be used.

[0072] In the present application, the material of the bonding layer is plastic, the optical fiber is a single-mode or multi-mode optical fiber in the prior art, which can be a glass optical fiber or a plastic optical fiber, and can be a solid optical fiber or a hollow optical fiber.

[0073] In the present application, the material of the conductor is copper or aluminum or copper alloy or aluminum alloy, and the material of the insulating layer is plastic.

[0074] In the present application, it is preferred that the cross section of the outer edge of the insulating layer is rectangular, and the cross section of the outer edge of the conductor is also rectangular, and the colors of the insulating layers of the two electric communication components are different, so that they can be easily distinguished.

[0075] In the present application, the first butterfly-shaped unit is a one-piece structure, and the second butterfly-shaped unit is also a one-piece structure.

[0076] The present application has the following main beneficial technical effects: easy to manufacture, simple structure, compact, better mechanical properties, better anti-biting and pecking, suitable for various applications, and suitable for self-supporting laying.

[0077] The present application can be used as an intelligent sensor and an intelligent sensing element; since it can transmit voice and images, it can also be used as a physical sensor, such as a voice sensor and an image sensor; since it transmits optical signals through total reflection principle, it can also be used as a distance sensor; the optical fiber in the present application itself is an optical waveguide, so it can be used as an optical waveguide, such as an array optical waveguide and a diffractive optical waveguide; the present application can also be used in the field of optical computing, as an optical computing, optical computing, and optical network computing, as part of optical chip computing.

[0078] The above-mentioned embodiments are only preferred technical solutions of the present application, and should not be regarded as limitations of the present application. The protection scope of the present application should be based on the technical solutions recited in the claims, including equivalent replacement solutions of the technical features recited in the claims. That is, within this scope, equivalent replacement improvements are also within the protection scope of the present application.

Claims

1. A bite-resistant lead-in optical cable having a sub-cable core, characterized by: The sub-cable core is composed of a first butterfly unit, a second butterfly unit and two electric communication components, the cross section of the first butterfly unit and the second butterfly unit is concave, in the sub-cable core, the first butterfly unit is in normal position, the second butterfly unit is in normal position or in inverted position and is embedded in the large concave groove of the first butterfly unit, the two electric communication components are embedded in the small concave groove of the second butterfly unit, the cross section of the outer edge of the sub-cable core is rectangular; the side wall of the first butterfly unit is provided with a reinforcing member, the bottom wall is provided with an optical communication component, the optical communication component of the first butterfly unit is provided with at least one optical fiber; the side wall of the second butterfly unit is provided with a reinforcing member, the bottom wall is provided with an optical communication component, the optical communication component of the second butterfly unit is provided with at least one optical fiber.

2. The rodent bite and scratch resistant premises entry cable of claim 1, wherein: The sub-cable core is further provided with an outer sheath, the outer sheath is wrapped outside the sub-cable core, the cross section of the outer edge of the outer sheath is rectangular.

3. The rodent bite and scratch resistant premises entry cable of claim 1, wherein: The sub-cable core is further provided with an outer sheath, the outer sheath is wrapped outside the sub-cable core, the cross section of the outer edge of the outer sheath is rectangular.

4. The rodent bite and peck resistant lead-in cable of any one of claims 1 to 3, wherein: The bottom wall is further provided with a reinforcing strip, the reinforcing strip is located above and below the optical communication component, and the reinforcing strip and the reinforcing member are connected as a whole.

5. A bite-resistant lead-in optical cable having a total cable core, characterized by: The total cable core is formed by stacking a plurality of sub-cable cores in up and down directions, or the total cable core is composed of a plurality of sub-cable cores arranged side by side in left and right directions, or the total cable core is composed of a plurality of stacked sub-cable cores, the stacked sub-cable cores are formed by stacking a plurality of sub-cable cores in up and down directions, and the plurality of stacked sub-cable cores are arranged side by side in left and right directions; the cross section of the outer edge of the total cable core is rectangular; the sub-cable core is composed of a first butterfly unit, a second butterfly unit and two electric communication components, the cross section of the first butterfly unit and the second butterfly unit is concave, in the sub-cable core, the first butterfly unit is in normal position, the second butterfly unit is in normal position or in inverted position and is embedded in the large concave groove of the first butterfly unit, the two electric communication components are embedded in the small concave groove of the second butterfly unit, the cross section of the outer edge of the sub-cable core is rectangular.

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