CN114859477B - Self-buckling butterfly-shaped optical cable - Google Patents
Self-buckling butterfly-shaped optical cable Download PDFInfo
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- CN114859477B CN114859477B CN202210574148.0A CN202210574148A CN114859477B CN 114859477 B CN114859477 B CN 114859477B CN 202210574148 A CN202210574148 A CN 202210574148A CN 114859477 B CN114859477 B CN 114859477B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
- G02B6/3893—Push-pull type, e.g. snap-in, push-on
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
- G02B6/4433—Double reinforcement laying in straight line with optical transmission element
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
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Abstract
The utility model provides a from knot formula butterfly-shaped optical cable, it is through setting up public head and female head that can mutually support the use for arbitrary two optical cable or the different positions of same optical cable pass through public head and female head cooperation lock joint, realize the doubling of a plurality of butterfly-shaped optical cables and the self-knot formula arrangement of independent optical cable fast, use high efficiency; the reinforcing piece is arranged in the easily torn male head and used for embedding the steel wires and the like, so that when the optical cable is required to be coiled or wired, the optical cable is wound and tidied by tearing the male head and the embedded steel wires are not required to be additionally wound by using a binding belt or fixed by using a magic tape; in addition, this application adds the thermochromic material in public first material, and accessible colour comes quick discernment optical cable, and in daily circuit inspection maintenance in-process, distinguish ambient temperature change through optical cable discolour, in time discover optical cable service environment, including building, the unusual change of temperature such as distribution box, avoid leading to the optical cable life-span short, communication performance decline because of lasting high temperature.
Description
Technical Field
The application relates to the field of butterfly-shaped optical cables, in particular to a self-buckling butterfly-shaped optical cable.
Background
The conventional butterfly-shaped optical cable has the characteristics of small structure, easy separation and the like, is generally used for the last kilometer of a user from an optical fiber to the home, comprises an optical fiber home-entering optical cable, can be reserved in an optical fiber distribution box and a home-entering optical fiber box in the use process, is convenient for subsequent welding and use, and is usually fixed by using a ribbon winding or a magic tape in a box or in the user's home, but a plurality of constructors are not wound with the optical cable generally and directly plug the butterfly-shaped optical cable into the box, so that the butterfly-shaped optical cable is placed in disorder, and the performance of the optical cable is affected. And in village and town paving facilities, the additional binding wire is used for binding the optical cable and hanging the optical cable on a telegraph pole for fixing. In addition, according to the self characteristic of optic fibre, all butterfly-shaped optical cable operation requirement all have this index of ambient temperature interval, but in the actual construction wiring process, constructor can't distinguish ambient temperature in the first time, causes butterfly-shaped optical cable because high temperature environment makes the utility reduce. Therefore, how to design a butterfly-shaped optical cable that can improve the arrangement efficiency in each scene and can quickly identify the ambient temperature is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
Aiming at the technical problems, the technical scheme adopted by the application is as follows: the utility model provides a from knot formula butterfly-shaped optical cable, includes rectangle optical fiber sheath, is located the optical fiber unit at rectangle optical fiber sheath center, be located in the rectangle optical fiber sheath and with the first reinforcement and the second reinforcement of optical fiber unit vertical symmetry, set up in the first V-arrangement tearing groove in rectangle optical fiber sheath first horizontal side middle part still includes:
the first male head and the second male head are formed by respectively extending leftwards and rightwards along the extension surfaces of the two side surfaces of the first V-shaped tearing groove, wherein the cross section of the first male head comprises a first line segment, a first horizontal line, a first oblique line, a second oblique line and a second horizontal line which are sequentially connected with the extension surface of the left side surface of the first V-shaped tearing groove 6 in the cross section, the first horizontal line and the first line segment are connected and extend leftwards relative to the first line segment, the first oblique line extends leftwards and upwards relative to the first horizontal line, the second oblique line extends rightwards relative to the first oblique line, and the first horizontal line and the first horizontal side surface are overlapped into a whole in the cross section corresponding to the part of the line segment, so that the first male head is in an easy-tearing structure relative to the rectangular optical fiber sheath; the cross section of the second male head comprises a second line segment, a third horizontal line, a third oblique line, a fourth oblique line and a fourth horizontal line which are sequentially connected and correspond to the extending surface of the right side surface of the first V-shaped tearing groove in the cross section, the third horizontal line and the second line segment are connected and extend rightwards relative to the second line segment, the third oblique line extends rightwards and upwards relative to the third horizontal line, the fourth oblique line extends leftwards and upwards relative to the third oblique line, the fourth horizontal line extends leftwards relative to the fourth oblique line, and the third horizontal line and the first horizontal side surface are overlapped into a whole in the corresponding line segment in the cross section, so that the second male head is in an easy-tearing structure relative to the rectangular optical fiber sheath;
the middle part of the second horizontal side surface is recessed inwards to form a female head, the cross section of the female head comprises a fifth oblique line, a sixth oblique line, a fifth horizontal line, a seventh oblique line, an eighth oblique line, a sixth horizontal line, a ninth oblique line and a tenth oblique line which are sequentially connected, wherein the fifth oblique line is connected with a corresponding line segment of the second horizontal side surface in the cross section and extends leftwards upwards relative to a corresponding line segment of the second horizontal side surface in the cross section, the sixth oblique line extends rightwards relative to the fifth oblique line, the fifth horizontal line extends rightwards relative to the sixth oblique line, the seventh oblique line extends rightwards relative to the fifth horizontal line, the eighth oblique line extends rightwards relative to the eighth oblique line, the ninth oblique line extends rightwards relative to the sixth horizontal line, the tenth oblique line extends leftwards downwards relative to the ninth oblique line, and the tenth oblique line is connected with a corresponding line segment of the second horizontal side surface in the cross section;
in addition, the first oblique line and the fifth oblique line have the same length and respectively have the same included angle with the corresponding line segment of the first horizontal side surface in the cross section, the second oblique line and the sixth oblique line have the same length and respectively have the same included angle with the corresponding line segment of the first horizontal side surface in the cross section, the third oblique line and the tenth oblique line have the same length and respectively have the same included angle with the corresponding line segment of the first horizontal side surface in the cross section, the fourth oblique line and the ninth oblique line have the same length and respectively have the same included angle with the corresponding line segment of the first horizontal side surface in the cross section, and the maximum horizontal width l of the busbar head in a natural state a1 Horizontal distance l between leftmost point of first male head and rightmost point of second male head in natural state A1 +a first error constant b; width l of female head recessed inlet on second horizontal side b ≥l A1 -(l-s+H A ) Xtan (A/2), l is the vertical distance between the first horizontal side and the second horizontal side, A is the angle of the first V-shaped tear groove, H A ＝max(H A1 ,H A2 )，H A1 H is the vertical height of the second horizontal line relative to the first horizontal side A2 Is the vertical height of the fourth horizontal line relative to the first horizontal side; horizontal distance l between leftmost point of fifth horizontal line and rightmost point of sixth horizontal line in mother head under natural state d First and second male top width l in natural state D +first error constant b, width of top of first male and second male in natural state l D Is the horizontal distance between the leftmost point of the second horizontal line and the rightmost point of the fourth horizontal line.
The application has the following technical effects: according to the optical fiber cable signal transmission device, the male head and the female head which can be matched with each other are arranged, wherein the male head comprises a first male head structure and a second male head structure which are easy to tear, so that two butterfly optical cables are buckled through matching of the male head and the other female head of one optical cable, or the male heads and the female heads of different parts of the same optical cable are buckled, the doubling and self-buckling arrangement of the butterfly optical cables are realized rapidly, the optical fiber cable signal transmission device is efficient in use, and the optical fiber cable signal transmission performance is guaranteed; in addition, the reinforcing piece is arranged in the male head and used for embedding the steel wire and the like, so that when a butterfly is required to form a coil or wire, the male head is torn so as to wind and arrange the optical cable by using the embedded steel wire, and the cable is not required to be additionally wound by using a binding belt or a magic tape for fixation; finally, the thermochromic material is added in the male material, so that on one hand, the optical cable can be rapidly identified through the color, on the other hand, in the process of inspecting and maintaining a daily circuit, the change of the environmental temperature is identified through the optical cable color change, the use environment of the optical cable is timely found, the abnormal temperature change of the optical cable, such as buildings and distribution boxes, is avoided, the optical cable is short in service life and low in communication performance due to continuous high temperature, and especially, certain special circuits with high requirements on the communication performance can be used for early warning the change of the environmental temperature.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-section of a butterfly cable according to an embodiment of the present application;
FIG. 2 is a perspective view of a butterfly cable according to another embodiment of the present disclosure;
FIG. 3 is a cross-sectional view of a butterfly cable according to yet another embodiment of the disclosure;
FIG. 4 is a schematic illustration of a butterfly cable of the present application with male and female ends for self-threading;
fig. 5 is a schematic perspective view of a plurality of butterfly cables of the present application using male and female ends for cabling.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The embodiment of the application provides a butterfly-shaped optical cable, as shown in fig. 1, which is a cross section of the butterfly-shaped optical cable, and comprises a rectangular optical fiber sheath 1, an optical fiber unit 2 positioned at the center of the rectangular optical fiber sheath 1, a first reinforcing member 3 and a second reinforcing member 4 which are positioned in the rectangular optical fiber sheath 1 and vertically symmetrical relative to the optical fiber unit 2, and a first V-shaped tearing groove 6 arranged in the middle of a first horizontal side surface 5 of the rectangular optical fiber sheath 1.
In this application, the rectangular optical fiber jacket 1 may be made of any material used in the prior art, such as a common 92A high-hardness low-smoke halogen-free jacket material. The range of the angle a of the first V-shaped tearing groove 6 is [7 °,15 ° ], preferably 10 °, and by setting the angle, the rectangular optical fiber sheath can not break the material used for the rectangular optical fiber sheath due to the overlarge angle of the first V-shaped tearing groove, so that the optical fiber unit can not be completely stored and protected. Further, the rectangular optical fiber sheath 1 may be arbitrarily set in its width and height as required. In a preferred embodiment of the present application, the rectangular optical fiber sheath 1 is a rounded rectangular optical fiber sheath, as shown in fig. 2, so as to avoid damaging the optical fiber during use due to sharp corners of the sheath. The optical fiber unit 2 may be provided as a 1-core optical fiber, a 2-core optical fiber, or a 4-core optical fiber, as desired. In this application, the center of the rectangular optical fiber sheath 1 refers to the position of the intersection of the vertical symmetry line and the horizontal symmetry line in the cross section of the rectangular optical fiber sheath 1. The middle part of the first horizontal side 5 of the rectangular optical fiber sheath 1 is recessed inward in a V shape to form the first V-shaped tearing groove 6, and the first V-shaped tearing groove 6 includes two sides, namely a left side 61 and a right side 62.
The butterfly-shaped optical cable further comprises: the first male end 12 and the second male end 13 formed by extending leftwards and rightwards along the extension surfaces of the two side surfaces of the first V-shaped tearing groove 6 and the female end 8 formed by recessing the middle part of the second horizontal side surface 7 inwards. Specifically, the line segment 121 is a line segment formed by the extending surface of the left side surface 61 of the first V-shaped tear groove 6 in the cross section shown in fig. 1, and the line segment 131 is a line segment formed by the extending surface of the right side surface 62 of the first V-shaped tear groove 6 in the cross section shown in fig. 1.
The cross section of the first male head 12 comprises a line segment 121, a first horizontal line 122, a first oblique line 123, a second oblique line 124 and a second horizontal line 125 which are connected in sequence and correspond to the extending surface of the left side surface 61 of the first V-shaped tearing groove 6 in the cross section, the first horizontal line 122 and the line segment 121 are connected and extend leftwards relative to the line segment 121, the first oblique line 123 extends leftwards relative to the first horizontal line 122, the second oblique line 124 extends rightwards relative to the first oblique line 123, the second horizontal line 125 extends rightwards relative to the second oblique line 124, and the first horizontal line 122 and the part of the corresponding line segment in the cross section of the first horizontal side surface 5 are overlapped into a whole, so that the first male head 12 is in a tearing-prone structure relative to the rectangular optical fiber jacket 1. Specifically, the first male head 12 may be torn away from the body of the rectangular optical fiber sheath 1, and when in use, a user may tear the first male head 12 with a specific length from the rectangular optical fiber sheath 1 as required.
The cross section of the second male head 13 comprises a line segment 131, a third horizontal line 132, a third inclined line 133, a fourth inclined line 134 and a fourth horizontal line 135 which are sequentially connected with the extending surface of the right side surface 62 of the first V-shaped tearing groove 6, wherein the third horizontal line 132 and the line segment 131 are connected and extend rightwards relative to the line segment 131, the third inclined line 133 extends rightwards and upwards relative to the third horizontal line 132, the fourth inclined line 134 extends leftwards and upwards relative to the third inclined line 133, the fourth horizontal line 135 extends leftwards relative to the fourth inclined line 134, and the third horizontal line 132 and the first horizontal side surface 5 are overlapped into a whole in the corresponding line segment in the cross section, so that the second male head 13 is in a tearable structure relative to the rectangular optical fiber jacket 1. Specifically, the second male head 13 may be torn away from the body of the rectangular optical fiber sheath 1, and in use, a user may tear the second male head 13 with a specific length from the rectangular optical fiber sheath 1 as required.
The cross section of the busbar head 8 comprises a fifth oblique line 81, a sixth oblique line 82, a fifth horizontal line 83, a seventh oblique line 84, an eighth oblique line 85, a sixth horizontal line 86, a ninth oblique line 87 and a tenth oblique line 88 which are sequentially connected, wherein the fifth oblique line 81 is connected with a corresponding line segment of the second horizontal side surface 7 in the cross section and extends leftwards and upwards relative to the corresponding line segment of the second horizontal side surface 7 in the cross section, the sixth oblique line 82 extends rightwards and upwards relative to the fifth oblique line 81, the fifth oblique line 83 extends rightwards relative to the sixth oblique line 82, the seventh oblique line 84 extends rightwards and upwards relative to the fifth oblique line 83, the eighth oblique line 85 extends rightwards and downwards relative to the seventh oblique line 84, the sixth horizontal line 86 extends rightwards and forms a ninth oblique line 87 relative to the sixth horizontal line 86, the tenth oblique line 88 extends leftwards and downwards relative to the ninth oblique line 87 and the second horizontal side surface 7 is connected with a corresponding line segment in the cross section. In the present application, the seventh diagonal line 84 and the eighth diagonal line 85 constitute the second V-shaped tear groove 9, and the first V-shaped tear groove 6 and the second V-shaped tear groove 9 themselves are symmetrical about a vertical symmetry line in the cross section of the rectangular optical fiber sheath 1, respectively.
In a preferred embodiment, the second V-shaped tear groove 9 and the first V-shaped tear groove 6 are positioned in correspondence, i.e. the second V-shaped tear groove 9 and the first V-shaped tear groove 6 are horizontally symmetrical with respect to said optical fiber unit 2. In order to facilitate the removal of the optical fiber unit 2, the vertical distance s between the first V-shaped tear groove 6 and the second V-shaped tear groove 9 (the vertical distance s is the distance between the apex of the first V-shaped tear groove 6 and the apex of the second V-shaped tear groove 9 in the cross section) is in the range of [0.6mm,0.8mm ], preferably 0.7mm. The first V-shaped tearing groove 6 and the second V-shaped tearing groove 9 which are vertically arranged enable the whole rectangular optical fiber sheath 1 to be kept in an easy-tearing state, and the optical fiber can be simplified in operation during construction welding.
Further, in order to enable any two butterfly cables to be fastened together or to enable different portions of the same butterfly cable to be fastened together, the first diagonal line 123 and the fifth diagonal line 81 have the same length and respectively have the same included angle with the corresponding line segment of the first horizontal side 6 in the cross section, and the second diagonal line 124 and the sixth diagonal line 82 have the same length and respectively have the same angle with the first horizontal sideThe corresponding line segment included angle of the surface 6 in the cross section is the same, the third oblique line 133 and the tenth oblique line 88 have the same length and respectively have the same included angle with the corresponding line segment of the first horizontal side surface 6 in the cross section, the fourth oblique line 134 and the ninth oblique line 87 have the same length and respectively have the same included angle with the corresponding line segment of the first horizontal side surface 6 in the cross section, and the maximum horizontal width l of the female head 8 in a natural state a Horizontal distance l between leftmost point of first male head 12 and rightmost point of second male head 13 in natural state A A +first error constant b, wherein b has a value within the range of [0mm,0.02mm ]]Vertical height H of female head 8 in natural state a Vertical height H of first male 12 relative to said first horizontal side 5 A1 +the first error constant b or the vertical height H of the second male 13 relative to said first horizontal side 5 A2 +first error constant b, vertical height H of female head 8 a Is the vertical distance of the fifth horizontal line 83 and the corresponding line of the second horizontal side 7 in said cross section. Width l of female head 8 recessed entrance on second horizontal side 7 b ≥l A -(l-s+H A ) X tan (A/2), l is the height of the rectangular optical fiber sheath 1, i.e. the vertical distance between the first and second horizontal sides 5, 7, H A ＝max(H A1 ,H A2 ) I.e. H A Is H A1 And H A2 Maximum value of (H) A1 Is the vertical height H of the second horizontal line 125 relative to the first horizontal side 5 A2 Is the vertical height of the fourth horizontal line 135 relative to the first horizontal side 5; width l of top of female head 8 in natural state d The top width l of the first male 12 and the second male 13 in the natural state D +first error constant b, width l of top of first male 12 and second male 13 in natural state D The width of the top of the female head 8 in the natural state is the horizontal distance between the leftmost point of the fifth horizontal line 83 and the rightmost point of the sixth horizontal line 86, which is the horizontal distance between the leftmost point of the second horizontal line 125 and the rightmost point of the fourth horizontal line 135. H in female head a 、l a 、l b 、l d The first male head and the second male head of one butterfly-shaped optical cable can be just nested in the other butterfly-shaped optical cable under the condition of applying forceThe optical cable or the female head thereof can be arranged efficiently. Namely, through the design of the structural dimension, the rationality and the operation simplicity of the self-buckling structure are met while the characteristic that the butterfly-shaped optical cable is easy to tear is maintained.
According to the method, the male head and the female head which are matched with each other in size are arranged on the butterfly-shaped optical cable, so that different butterfly-shaped optical cables or different parts of the same butterfly-shaped optical cable can be buckled together through the male head and the female head, and further the doubling arrangement of a plurality of optical fibers or the self-buckling winding arrangement of the same optical cable is realized, the arrangement efficiency of the optical cable can be improved in two ways, and the communication performance of the optical fibers can be maintained. In addition, this application can be under the prerequisite that does not change butterfly-shaped optical cable production line, production flow, production efficiency, only change mould size structure and can produce out from knot formula butterfly-shaped optical cable, from knot formula butterfly-shaped optical cable can use effectively and place case, passageway distribution box at indoor router, and surplus optical cable can carry out from knot formula arrangement effectively portably, and butterfly-shaped optical cable can not coil from knot formula, doubling arrangement etc. through the foreign object, practices thrift equipment space, simplifies constructor's operation action, butterfly-shaped optical cable and places more pleasing to the eye.
In this application, the second V-shaped tear groove 9 is provided at an angle b=76° in order to make the male and female heads better fit for use and to be able to protect the optical fiber unit.
In a preferred embodiment of the present application, the first male head 12 and the second male head 13 are vertically symmetrical about the first V-shaped tear groove 6, or the first male head 12 and the second male head 13 are symmetrical about a vertical symmetry line of the rectangular optical fiber sheath 1. Further, a vertical height H of the first male 12 is set A1 The height l of the rectangular optical fiber sheath 1=4mm, and the horizontal distance l between the leftmost point of the first male head 12 and the rightmost point of the second male head 13 in a natural state A =2.0 mm, then at this time, the vertical height H of the second male 13 A2 The maximum horizontal width l of the female head 8 in natural state =1.5 mm a1 =2.0 mm+b, wherein the vertical height H of the first male 12 A1 For a first horizontal line 122 and a second horizontal lineVertical distance between lines 125, vertical height H of second male 13 A2 Is the vertical distance between the third horizontal line 132 and the fourth horizontal line 135. The setting of the parameters ensures that the overall volume of the butterfly-shaped optical cable is not too large to occupy more space, thereby being unfavorable for the arrangement and the use of the optical cable.
In an embodiment of the present invention, in order to make the first male head 12 and the second male head 13 more easily locked into the female head 8, tapered plugs are provided on the upper portions of the first male head 12 and the second male head 13, that is, the second oblique line 124 and the fourth oblique line 134 intersect at an acute angle, and (l-s+h) A1 ) The larger/2, the flatter the plug, l B The smaller, preferably, the plug is set to maintain an entry angle of about 60 °, i.e., the acute angle formed by the second diagonal line 124 and the fourth diagonal line 134=60°, then (l-s+h) A1 ) 2 is 2.4mm, at which time the female inlet l is calculated b ≥l A -(l-s+H A1 ) X tan (a/2) =1.58 mm. Further, the length l of the first horizontal line 122 and the third horizontal line 132 E The value range is [0.63mm,1.167mm ]]In order to make the male and female heads buckled, then l b ≥2l E +(l-s)/2×tan(A/2)。
In a preferred embodiment, the top width l of the first male 12 and the second male 13 in the natural state is set D ≤l b -a, wherein a is a second error constant in the range of [0.02mm,0.5mm]Preferably 0.5mm. And when l=4mm, s=0.7mm, l A1 When =2.0 mm, a=0.5 mm, l D Less than or equal to 1.08mm. The male plug is slightly smaller in size than the female plug in the non-fitting state, when the butterfly-shaped optical cable is self-buckled, the bevel angles of the male plug 12 and the male plug 13 are combined and fit under the extrusion force of the female plug, and the male plug in the plane fitting state at two ends is smaller than the female plug in size and can enter the female plug. After entering the female, the male 12 and the male 13 are not pressed by the extrusion force, and the female is loosely buckled in the elastic energy of the material.
In a preferred embodiment of the present application, the butterfly cable further comprises: a circular hanging wire sheath 10 positioned in the middle of the first vertical side surface of the rectangular optical fiber sheath 1, and a hanging wire 11 positioned in the center of the hanging wire sheath 10, wherein the circular hanging wire sheath 10 and the rectangular optical fiber sheath 1 are integrally formed, as shown in fig. 3. Through setting up the messenger wire sheath with optic fibre sheath integrated into one piece, and then obtain a self-supporting butterfly-shaped optical cable for in outdoor wiring's in-process, utilize according to need messenger wire sheath and messenger wire, fix the butterfly-shaped optical cable in arbitrary place of needs, improve the convenience of use of optical cable.
In another embodiment of the present application, the first male 12 and/or the second male 13 further comprises a third reinforcement 14, as shown in fig. 3. Specifically, the third reinforcement member 14 is a circular reinforcement member, and the center of the third reinforcement member 14 is located at a distance r2=h from the first horizontal side 5 A1 2, the distance r1=l between the centre of the third reinforcement 14 and the leftmost point of the first male 12 A1 /4-(l-s+H A1 ) /4×tan (a/2), or the distance r1=l between the center of the third reinforcement 14 and the rightmost point of said second male 13 A1 /4-(l-s+H A1 ) 4 Xtan (A/2). Preferably, the third reinforcement is embedded with steel wires, wherein the steel wires may be phosphatized steel wires with phi of 0.3 mm. By arranging the reinforcing piece embedded steel wire in the male head, tearing can be performed as a binding wire under the condition that the hand applies force to the tearing groove. When the steel wire is not embedded in the male head, the tearing and discarding can be carried out under the condition that the hand applies force to the tearing groove. Fig. 4 is a schematic view of a butterfly optical cable using the male and female heads for self-fastening winding, and fig. 5 is a schematic view of a plurality of butterfly optical cables using the male and female heads for doubling.
In a preferred embodiment of the present application, the matrix material of the first male 12 and/or the second male 13 is mixed with a thermochromic material. Specifically, the inner sheath material of the first male head 12 and/or the second male head 13 is mixed with thermochromic powder, and the material can change the molecular structure of the organic matter due to electron transfer at a specific temperature, so that the color conversion is realized. The temperature change in the range of-5-90 ℃ of the optical cable can be realized by using the thermochromic powder, and the temperature is displayed by different colors for early warning. If the optical cable male head 1 shows lighter yellow color at normal temperature, when the temperature change is raised to 78 ℃, the optical cable male head 1 shows vivid red color, and vivid contrast is formed.
By using the thermochromic material in the matrix material of the male head, the quick identification function and the environment temperature sensing function of the color bar optical cable are considered, so that the optical cable has a temperature early warning function, a constructor and a line inspection person can find a high temperature source in time, the high temperature source is locked, isolation or multiple protection is effectively carried out, and the transmission performance of the optical cable, especially the special line, is ensured; the optical cable can warn the change of the ambient temperature during building and indoor use, and simultaneously prolongs the service life of the optical cable. In addition, the optical cable can be quickly identified according to the color of the male head in a complex line.
Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. Those skilled in the art will also appreciate that various modifications might be made to the embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.
Claims (10)
1. The utility model provides a from knot formula butterfly-shaped optical cable, includes rectangle optic fibre sheath, is located the optic fibre unit at rectangle optic fibre sheath center, be located in the rectangle optic fibre sheath and with the first reinforcement and the second reinforcement of optic fibre unit vertical symmetry, set up in the first V-arrangement tear groove in rectangle optic fibre sheath first horizontal side middle part, its characterized in that still includes:
the first male head and the second male head are formed by respectively extending leftwards and rightwards along the extension surfaces of the two side surfaces of the first V-shaped tearing groove, wherein the cross section of the first male head comprises a first line segment, a first horizontal line, a first oblique line, a second oblique line and a second horizontal line which are sequentially connected with the extension surface of the left side surface of the first V-shaped tearing groove 6 in the cross section, the first horizontal line and the first line segment are connected and extend leftwards relative to the first line segment, the first oblique line extends leftwards and upwards relative to the first horizontal line, the second oblique line extends rightwards relative to the first oblique line, and the first horizontal line and the first horizontal side surface are overlapped into a whole in the cross section corresponding to the part of the line segment, so that the first male head is in an easy-tearing structure relative to the rectangular optical fiber sheath; the cross section of the second male head comprises a second line segment, a third horizontal line, a third oblique line, a fourth oblique line and a fourth horizontal line which are sequentially connected and correspond to the extending surface of the right side surface of the first V-shaped tearing groove in the cross section, the third horizontal line and the second line segment are connected and extend rightwards relative to the second line segment, the third oblique line extends rightwards and upwards relative to the third horizontal line, the fourth oblique line extends leftwards and upwards relative to the third oblique line, the fourth horizontal line extends leftwards relative to the fourth oblique line, and the third horizontal line and the first horizontal side surface are overlapped into a whole in the corresponding line segment in the cross section, so that the second male head is in an easy-tearing structure relative to the rectangular optical fiber sheath;
the middle part of the second horizontal side surface is recessed inwards to form a female head, the cross section of the female head comprises a fifth oblique line, a sixth oblique line, a fifth horizontal line, a seventh oblique line, an eighth oblique line, a sixth horizontal line, a ninth oblique line and a tenth oblique line which are sequentially connected, wherein the fifth oblique line is connected with a corresponding line segment of the second horizontal side surface in the cross section and extends leftwards upwards relative to a corresponding line segment of the second horizontal side surface in the cross section, the sixth oblique line extends rightwards relative to the fifth oblique line, the fifth horizontal line extends rightwards relative to the sixth oblique line, the seventh oblique line extends rightwards relative to the fifth horizontal line, the eighth oblique line extends rightwards relative to the seventh oblique line, the ninth oblique line extends rightwards relative to the eighth oblique line, the tenth oblique line extends leftwards relative to the ninth oblique line, and the tenth oblique line is connected with a corresponding line segment of the second horizontal side surface in the cross section;
in addition, the first and fifth oblique lines have the same length and the same included angle with the corresponding line segment of the first horizontal side surface in the cross section, the second and sixth oblique lines have the same length and the same included angle with the corresponding line segment of the first horizontal side surface in the cross section, the third and tenth oblique lines have the same length and the same included angle with the corresponding line segment of the first horizontal side surface in the cross section, the fourth oblique line and the fourth oblique lineThe ninth oblique line has the same length and the same included angle with the corresponding line segment of the first horizontal side surface in the cross section, and the maximum horizontal width l of the mother head in a natural state a Horizontal distance l between leftmost point of first male head and rightmost point of second male head in natural state A +a first error constant b; width l of female head recessed inlet on second horizontal side b ≥l A -(l-s+H A ) Xtan (A/2), l is the vertical distance between the first horizontal side and the second horizontal side, A is the angle of the first V-shaped tear groove, H A ＝max(H A1 ,H A2 )，H A1 H is the vertical height of the second horizontal line relative to the first horizontal side A2 Is the vertical height of the fourth horizontal line relative to the first horizontal side; horizontal distance l between leftmost point of fifth horizontal line and rightmost point of sixth horizontal line in mother head under natural state d First and second male top width l in natural state D +first error constant b, width of top of first male and second male in natural state l D Is the horizontal distance between the leftmost point of the second horizontal line and the rightmost point of the fourth horizontal line.
2. The butterfly cable of claim 1, wherein the first male head and the second male head are vertically symmetrical about the first V-shaped tear groove.
3. The butterfly cable of claim 2, wherein b has a value in the range of [0mm,0.02mm ].
4. The butterfly cable of claim 2, further comprising: the circular hanging wire sheath is positioned in the middle of the first vertical side surface of the rectangular optical fiber sheath, and the hanging wire is positioned in the center of the hanging wire sheath, and the circular hanging wire sheath and the rectangular optical fiber sheath are integrally formed.
5. The butterfly cable of claims 1 or 4, wherein the first male head and/or the second male head further comprises a third strength member.
6. The butterfly-shaped optical cable of claim 5, wherein the matrix material of the first male head and/or the second male head is mixed with a thermochromic material.
7. The butterfly cable of claim 2, wherein a = 10 °.
8. The butterfly-shaped optical cable of claim 2, wherein the second diagonal and the fourth diagonal form an acute angle = 60 °.
9. The butterfly cable of claim 2, wherein the rectangular fiber jacket is a rounded rectangular fiber jacket.
10. The butterfly-shaped optical cable of claim 8, wherein l b ≥2l E +(l-s)/2×tan(A/2)，l E Is the length of the first horizontal line or the third horizontal line.
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| CN115097588A (en) * | 2022-08-22 | 2022-09-23 | 深圳市特发信息光网科技股份有限公司 | Multi-unit butterfly-shaped leading-in optical cable |
| CN117666053B (en) * | 2024-01-29 | 2024-04-26 | 江苏中天科技股份有限公司 | Anti-twisting multifunctional low-attenuation butterfly-shaped optical cable |
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