CN115097588A

CN115097588A - Multi-unit butterfly-shaped leading-in optical cable

Info

Publication number: CN115097588A
Application number: CN202211004028.3A
Authority: CN
Inventors: 柯旋; 龙清钧; 刘勇; 朱玲
Original assignee: Telumin Technology Dongguan Co ltd; SHENZHEN SDGI OPTICAL NETWORK TECHNOLOGIES CO LTD; Shenzhen SDG Information Co Ltd
Current assignee: Telumin Technology Dongguan Co ltd; SHENZHEN SDGI OPTICAL NETWORK TECHNOLOGIES CO LTD; Shenzhen SDG Information Co Ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-09-23

Abstract

The invention belongs to the technical field of communication optical cables, and discloses a multi-unit butterfly-shaped leading-in optical cable which is provided with a plurality of butterfly-shaped units (1) and a plurality of clamping components (2); the butterfly-shaped unit is characterized by comprising an optical fiber (11), a reinforcing member (12) and a unit sheath (13), wherein the unit sheath (13) is provided with a first embedding opening (141) and a second embedding opening (142); the clamping component is composed of a clamping body (21); when the butterfly-shaped unit is assembled, the outer edges of all the butterfly-shaped units are on the same cylindrical surface, one end of the clamping component between the adjacent butterfly-shaped units is embedded into the second embedding opening of one butterfly-shaped unit, and the other end of the clamping component between the adjacent butterfly-shaped units is embedded into the first embedding opening of the other butterfly-shaped unit. The application has the following main beneficial technical effects: the butterfly-shaped unit is convenient to expand, flexible and convenient to assemble, compact in structure, small in occupied space, less in material consumption and low in cost.

Description

Multi-unit butterfly-shaped leading-in optical cable

Technical Field

The invention belongs to the technical field of communication optical cables, and discloses a multi-unit butterfly-shaped leading-in optical cable.

Background

In the prior art, the butterfly-shaped leading-in optical cable is single in structure, inconvenient to expand, low in universality, large in occupied space and high in cost.

CN112711109A discloses an easily expandable butterfly-shaped drop cable, which has a framework component, a plurality of expansion components, and a plurality of butterfly-shaped optical units; the framework part consists of a framework body, a framework extension strip and a clamping part, and a central cavity is formed in the framework body; the expansion part is internally provided with an expansion cavity; and a clamping part is clamped into the expansion cavity of each expansion part and is made to be attached to the upper surface of the lower side wall body of the expansion part, and each expansion cavity is internally provided with a butterfly-shaped light unit which is positioned above the lower side wall body of the expansion part in the expansion cavity. Although it realizes the quick expansion of the butterfly-shaped drop cable, it has the following defects: (1) the symmetric axis of the butterfly-shaped light unit in the length direction passes through the axis of the central cavity, so that the product diameter is too large, the space utilization rate is not high, and the pole renting cost and the product cost are high; (2) the same framework component can not adapt to the conditions of different numbers of butterfly-shaped light units, so that the storage is troublesome and the cost is higher.

CN213482531U discloses an expandable multi-core butterfly-shaped drop cable, which has a framework component, a plurality of expansion components, and a plurality of butterfly-shaped optical units; the method is characterized in that: the framework part consists of a framework body, a framework extension strip and a clamping part, and a central cavity is formed in the framework body; the expansion part is internally provided with an expansion cavity; a clamping part is clamped into the expansion cavity of each expansion part and is made to be attached to the upper surface of the lower side wall body of the expansion part, a butterfly-shaped light unit is arranged in each expansion cavity and located above the lower side wall body of the expansion part in the expansion cavity, and the number of the butterfly-shaped light units is increased through expansion of the expansion part.

CN212411634U discloses an electric power to the home butterfly-shaped drop cable, which has a protection tube, a plurality of butterfly-shaped optical units, and an electric unit; the optical cable is characterized in that the protective tube, the butterfly-shaped optical units and the electric unit are all of special shapes and structures, the electric power is led into the optical cable from the house to the butterfly-shaped, the electric unit is located in a central cavity of the protective tube, the butterfly-shaped optical units are located in an annular cavity of the protective tube, and each framework cavity of the electric unit is located right below a second tearing opening of each butterfly-shaped optical unit. The butterfly-shaped optical unit is placed in a ring cavity mode, and the communication capacity is increased.

However, the above prior art is inconvenient for expanding the butterfly unit, inconvenient for assembling, large in size, large in occupied space and high in cost.

Disclosure of Invention

In order to solve the above problems, the present invention discloses a multi-unit butterfly-shaped drop cable, which is implemented by the following technical solutions.

A multi-unit butterfly-shaped leading-in optical cable is provided with n identical butterfly-shaped units and n identical clamping components, wherein n is more than or equal to 3 and is an integer, and the number of the butterfly-shaped units is equal to that of the clamping components; the method is characterized in that: the butterfly-shaped unit consists of an optical fiber, two reinforcing members positioned on the upper side and the lower side of the optical fiber and a unit sheath, wherein the unit sheath wraps the optical fiber and the reinforcing members, the upper surface of the unit sheath is provided with a sunken first embedding opening, and the lower surface of the unit sheath is provided with a sunken second embedding opening; the clamping component is composed of a clamping body; when the butterfly-shaped unit is assembled, the outer edges of all the butterfly-shaped units are arranged outside, the outer edges of all the butterfly-shaped units are arranged on the same cylindrical surface, the adjacent butterfly-shaped units are connected through a clamping part, one end of the clamping part between the adjacent butterfly-shaped units is embedded into the second embedding opening of one butterfly-shaped unit, the other end of the clamping part between the adjacent butterfly-shaped units is embedded into the first embedding opening of the other butterfly-shaped unit, and the inner space defined by all the butterfly-shaped units and the clamping part is a central cavity.

The multi-unit butterfly-shaped drop cable is characterized in that: the unit sheaths on the left and right sides of the optical fiber have recessed tearing openings.

The multi-unit butterfly-shaped drop cable is characterized in that: the end of the clamping component is stained with adhesive.

The multi-unit butterfly-shaped drop cable is characterized in that: the butterfly unit is composed of an optical fiber, two reinforcing members positioned on the upper side and the lower side of the optical fiber and a unit sheath, the optical fiber and the reinforcing members are coated by the unit sheath, a protruding clamping part is arranged at the position, close to the center, of the upper surface of the unit sheath, a sunken second embedding opening is formed in the lower surface of the unit sheath, and the clamping part and the unit sheath are combined into a whole; the clamping component is composed of a clamping body; when the butterfly unit is assembled, the outer edges of all the butterfly units are outside, the outer edges of all the butterfly units are on the same cylindrical surface, the adjacent butterfly units are connected through the clamping component of one butterfly unit, the clamping components of the butterfly units with the clamping components between the adjacent butterfly units are embedded into the second embedding openings of the butterfly units without the clamping components, and the inner space surrounded by all the butterfly units and the clamping components is a central cavity.

The multi-unit butterfly-shaped drop cable is characterized in that: the butterfly-shaped unit consists of an optical fiber, two reinforcing members positioned on the upper side and the lower side of the optical fiber and a unit sheath, wherein the optical fiber and the reinforcing members are coated by the unit sheath; the clamping component is composed of a clamping body; when the butterfly unit is assembled, the outer edges of all the butterfly units are outside, the outer edges of all the butterfly units are on the same cylindrical surface, adjacent butterfly units are connected through the clamping part of one butterfly unit, the clamping part of the butterfly unit with the clamping part between the adjacent butterfly units is embedded into the first embedding opening of the butterfly unit without the clamping part, and the internal space enclosed by all the butterfly units and the clamping part is a central cavity.

The multi-unit butterfly-shaped drop cable is characterized in that: the butterfly-shaped unit consists of an optical fiber, two reinforcing members positioned on the upper side and the lower side of the optical fiber and a unit sheath, wherein the optical fiber and the reinforcing members are coated by the unit sheath, the outer edge of the upper surface of the unit sheath is provided with a protruding clamping part, the lower surface of the unit sheath is provided with a sunken second embedding opening, and the extension strip and the unit sheath are combined into a whole; the clamping component is composed of an extension strip, and the outer edge of the extension strip is positioned in the circle of the outer edge of the unit sheath; when the butterfly units are assembled, the outer edges of all the butterfly units are outside, the outer edges of all the butterfly units are on the same cylindrical surface, adjacent butterfly units are connected through the extension strip of one butterfly unit, the clamping parts of the butterfly units with the extension strips between the adjacent butterfly units are embedded into the second embedding openings of the butterfly units without the extension strips, and the internal space surrounded by all the butterfly units and the clamping parts is a central cavity.

The multi-unit butterfly-shaped drop cable is characterized in that: the butterfly-shaped unit consists of an optical fiber, two reinforcing members positioned on the upper side and the lower side of the optical fiber and a unit sheath, wherein the unit sheath coats the optical fiber and the reinforcing members, the outer edge of the lower surface of the unit sheath is provided with a protruding clamping part, the upper surface of the unit sheath is provided with a sunken first embedding opening, and the clamping part and the unit sheath are combined into a whole; the clamping component is composed of an extension strip, and the outer edge of the extension strip is positioned in the circle of the outer edge of the unit sheath; when the butterfly unit is assembled, the outer edges of all the butterfly units are outside, the outer edges of all the butterfly units are on the same cylindrical surface, adjacent butterfly units are connected through the clamping component of one butterfly unit, the extending strip of the butterfly unit with the clamping component between the adjacent butterfly units is embedded into the first embedding opening of the butterfly unit without the clamping component, and the internal space enclosed by all the butterfly units and the clamping component is a central cavity.

The multi-unit butterfly-shaped drop cable is characterized in that: the edge of the clamping body of the clamping component is provided with side grooves distributed at intervals.

The multi-unit butterfly-shaped drop cable is characterized in that: the clamping component has tearing grooves at corresponding positions of the upper and lower surfaces of the center of the clamping body, and the tearing grooves are distributed along the length direction of the clamping body.

The multi-unit butterfly-shaped drop cable is characterized in that: the clamping body on the right side of the tearing groove is provided with a plurality of side grooves which are continuously distributed and vertically penetrate through the clamping body, and the edge, close to the left side, of the clamping body is also provided with a plurality of side grooves which are continuously distributed and vertically penetrate through the clamping body.

The multi-unit butterfly-shaped drop cable is characterized in that: still have central reinforcement, protective case, central reinforcement is located protective case and is laminated mutually, and the butterfly unit is located outside protective case, and protective case is located the central intracavity.

The multi-unit butterfly-shaped drop cable is characterized in that: the optical fiber ribbon optical fiber protection device is characterized by further comprising a protection sleeve, a plurality of optical fiber ribbons distributed in a stacking mode are arranged in the protection sleeve, a plurality of optical fibers are arranged in each optical fiber ribbon, a gap is formed between each optical fiber ribbon and the inner wall of the protection sleeve, the butterfly-shaped unit is located outside the protection sleeve, and the protection sleeve is located in the central cavity.

The multi-unit butterfly-shaped drop cable is characterized in that: still have the protective case, protective case inside has many insulated wire, and insulated wire comprises the electric conductor and the insulating layer of wrapping the electric conductor, and the butterfly unit is located outside the protective case, and the protective case is located central cavity.

The multi-unit butterfly-shaped drop cable is characterized in that: the central cavity is also provided with a plurality of butterfly units.

The multi-unit butterfly-shaped drop cable is characterized in that: the butterfly unit is arranged in the shell, and the outer sheath is arranged outside the butterfly unit and covers the butterfly unit.

The application has the following main beneficial technical effects: the butterfly-shaped unit is convenient to expand, flexible and convenient to assemble, compact in structure, small in occupied space, low in material consumption and low in cost.

Drawings

Fig. 1 is a schematic perspective view of a dissected segment of the example 1.

Fig. 2 is an enlarged cross-sectional structure diagram of fig. 1.

Fig. 3 is a schematic perspective view of the central reinforcement member, the protective sleeve and the outer sheath of fig. 1 without the central reinforcement member, the protective sleeve and the outer sheath.

Fig. 4 is an enlarged cross-sectional view of fig. 3.

Fig. 5 is a schematic, anatomical perspective view of the butterfly unit used in fig. 1.

Fig. 6 is an enlarged cross-sectional view of fig. 5.

Fig. 7 is a schematic perspective view of a single dissected segment of the engaging member used in example 1.

Fig. 8 is an enlarged cross-sectional view of fig. 7.

Fig. 9 is a schematic cross-sectional structure diagram of a butterfly unit used in embodiment example 2.

Fig. 10 is a schematic cross-sectional structure diagram of a butterfly unit used in embodiment example 3.

Fig. 11 is a schematic cross-sectional structure diagram of a butterfly unit used in embodiment example 4.

FIG. 12 is a schematic perspective view of a single dissected segment of the engaging member used in example 5.

FIG. 13 is a schematic perspective view of a portion of an anatomical structure of the engaging member used in example 6.

FIG. 14 is a perspective view of a single anatomical segment of the engaging member used in example 7.

Fig. 15 is an enlarged cross-sectional view of fig. 14.

FIG. 16 is a schematic perspective view of a portion of an anatomical structure of the engaging member used in example 8.

Fig. 17 is a schematic perspective view of a dissected segment of the example 9.

Fig. 18 is an enlarged cross-sectional view of fig. 17.

Fig. 19 is a schematic perspective view of a dissected segment of example 10.

Fig. 20 is an enlarged cross-sectional view of fig. 19.

Fig. 21 is a partial cross-sectional structure diagram of embodiment example 11.

Fig. 22 is a partial cross-sectional structural view of embodiment example 12.

Fig. 23 is a partial cross-sectional structure diagram of embodiment example 13.

In the figure: 1-butterfly unit, 2-clamping component, 3-central reinforcement, 4-protective sleeve, 5-outer sheath, 6-optical fiber ribbon, 30-central cavity, 11-optical fiber, 12-reinforcement member, 13-unit sheath, 15-tearing opening, 141-first clamping opening, 142-second clamping opening, R-butterfly unit outer edge radius, O-butterfly unit outer edge circle center, 21-clamping body, 22-side groove, 23-tearing groove, 121-extending strip, 61-optical fiber, 7-insulating layer and 71-electric conductor.

Detailed Description

Examples 1

Referring to fig. 1 to 8, a multi-unit butterfly-shaped drop cable includes six identical butterfly-shaped units 1, six identical clamping members 2, a central reinforcement 3, a protection sleeve 4, and an outer sheath 5, where the central reinforcement 3 is located inside the protection sleeve 4 and is attached to the protection sleeve 4, the butterfly-shaped units 1 are located outside the protection sleeve 4, and the outer sheath 5 is located outside the butterfly-shaped units 1 and covers the butterfly-shaped units 1; the method is characterized in that:

the butterfly-shaped unit 1 is composed of an optical fiber 11, two reinforcing members 12 positioned at the upper side and the lower side of the optical fiber 11 and a unit sheath 13, the unit sheath 13 wraps the optical fiber 11 and the reinforcing members 12, the upper end of the unit sheath 13 is provided with a first recessed embedding opening 141, the lower end of the unit sheath 13 is provided with a second recessed embedding opening 142, the radius of the outer edge of the unit sheath 13 is R, and the circle center of the outer edge of the unit sheath 13 is O;

the clamping component 2 is composed of a clamping body 21, and the cross section of the clamping body 21 is in a sector arc shape;

in an assembly state, the outer edges of all the butterfly units 1 are outside, the outer edges of all the butterfly units 1 are on the same cylindrical surface, the adjacent butterfly units 1 are connected through one clamping part 2, one end of the clamping part 2 between the adjacent butterfly units 1 is embedded into the second embedding opening 142 of one butterfly unit 1, the other end of the clamping part 2 between the adjacent butterfly units 1 is embedded into the first embedding opening 141 of the other butterfly unit 1, the inner space enclosed by all the butterfly units 1 and the clamping part 2 is a central cavity 30, and the protective sleeve 4 is located in the central cavity 30.

The multi-unit butterfly-shaped drop cable is characterized in that: the unit sheaths 13 on both right and left sides of the optical fiber 11 have recessed tear ports 15.

The multi-unit butterfly-shaped drop cable is characterized in that: the end of the engaging member 2 is stained with an adhesive.

EXAMPLES example 2

Referring to fig. 9 and fig. 1 to 8, a multi-unit butterfly-shaped drop cable is substantially the same as embodiment 1, except that: the butterfly-shaped unit 1 is composed of an optical fiber, two reinforcing members positioned at the upper side and the lower side of the optical fiber and a unit sheath, the optical fiber and the reinforcing members are coated by the unit sheath, a protruding clamping part 2 is arranged at the position, close to the center, of the upper end of the unit sheath, a sunken second embedding opening 142 is arranged at the lower end of the unit sheath, and the clamping part 2 and the unit sheath 13 are combined into a whole; the clamping part 2 is composed of a clamping body, and the cross section of the clamping body is in a sector ring arc shape; when the butterfly unit is assembled, the outer edges of all the butterfly units 1 are outside, the outer edges of all the butterfly units 1 are on the same cylindrical surface, the adjacent butterfly units 1 are connected through the clamping part 2 of one butterfly unit 1, the clamping part 2 of the butterfly unit 1 with the clamping part 2 between the adjacent butterfly units 1 is embedded into the second embedding opening 142 of the butterfly unit 1 without the clamping part 2, the inner space surrounded by all the butterfly units 1 and the clamping part 2 is a central cavity, and the protective sleeve is positioned in the central cavity.

EXAMPLE 3

Referring to fig. 10 and fig. 1 to 9, a multi-unit butterfly-shaped drop cable is substantially the same as embodiment 1, except that: the butterfly-shaped unit 1 is composed of an optical fiber, two reinforcing members positioned at the upper side and the lower side of the optical fiber and a unit sheath, the optical fiber and the reinforcing members are coated by the unit sheath, a clamping part 2 which extends out is arranged at the position, close to the center, of the lower end of the unit sheath, the upper end of the unit sheath is provided with a sunken first embedding opening 141, and the clamping part 2 and the unit sheath 13 are combined into a whole; the clamping part 2 is composed of a clamping body, and the cross section of the clamping body is in a sector ring arc shape; in an assembly state, the outer edges of all the butterfly units 1 are outside, the outer edges of all the butterfly units 1 are on the same cylindrical surface, the adjacent butterfly units 1 are connected through the clamping part 2 of one butterfly unit 1, the clamping part 2 of the butterfly unit 1 with the clamping part 2 between the adjacent butterfly units 1 is embedded into the first embedding opening 141 of the butterfly unit 1 without the clamping part 2, the inner space enclosed by all the butterfly units 1 and the clamping part 2 is a central cavity, and the protective sleeve is positioned in the central cavity.

EXAMPLE 4

Referring to fig. 11 and fig. 1 to 10, a multi-unit butterfly-shaped drop cable is substantially the same as embodiment 2, except that: the butterfly-shaped unit 1 is composed of an optical fiber, two reinforcing members positioned on the upper side and the lower side of the optical fiber and a unit sheath, the optical fiber and the reinforcing members are coated by the unit sheath, an extended clamping part is arranged at the outer edge of the upper end of the unit sheath, a recessed second embedding opening is arranged at the lower end of the unit sheath, and the extension strip 121 and the unit sheath 13 are combined into a whole; the clamping component is composed of an extension strip 121, the outer edge of the extension strip 121 is in the circle of the outer edge of the unit sheath; when the butterfly units are assembled, the outer edges of all the butterfly units 1 are outside, the outer edges of all the butterfly units 1 are on the same cylindrical surface, the adjacent butterfly units 1 are connected through the extending strip 121 of one of the butterfly units 1, the clamping parts 2 of the butterfly units 1 with the extending strips 121 between the adjacent butterfly units 1 are embedded into the second embedding openings of the butterfly units 1 without the extending strips 121, the inner space surrounded by all the butterfly units 1 and the clamping parts is a central cavity, and the protective sleeve is positioned in the central cavity.

In this embodiment, referring to fig. 10, a multi-unit butterfly-shaped drop cable is basically the same as embodiment 3 except that: the butterfly-shaped unit 1 is composed of an optical fiber, two reinforcing members positioned on the upper side and the lower side of the optical fiber and a unit sheath, the optical fiber and the reinforcing members are coated by the unit sheath, an extended clamping part is arranged at the outer edge of the lower end of the unit sheath, a sunken first embedding opening is arranged at the upper end of the unit sheath, and the clamping part and the unit sheath 13 are combined into a whole; the clamping component is composed of an extension strip, and the outer edge of the extension strip is positioned in the circle of the outer edge of the unit sheath; when the butterfly-shaped unit 1 is assembled, the outer edges of all the butterfly-shaped units 1 are outside, the outer edges of all the butterfly-shaped units 1 are on the same cylindrical surface, the adjacent butterfly-shaped units 1 are connected through the clamping part of one butterfly-shaped unit 1, the extending strip of the butterfly-shaped unit 1 with the clamping part between the adjacent butterfly-shaped units 1 is embedded into the first embedding opening of the butterfly-shaped unit 1 without the clamping part, the inner space enclosed by all the butterfly-shaped units 1 and the clamping part is a central cavity, and the protective sleeve is positioned in the central cavity.

EXAMPLE 5

Referring to fig. 12 and fig. 1 to 11, a multi-unit butterfly-shaped drop cable is substantially the same as embodiment 1, except that: the edge of the clamping body 21 of the clamping component 2 is provided with side grooves 22 which are distributed at intervals, and the existence of the side grooves 22 reduces the weight of the product and reduces the material consumption of the clamping component.

EXAMPLE 6

Referring to fig. 13 and fig. 1 to 12, a multi-unit butterfly-shaped drop cable is substantially the same as embodiment 1, except that: the upper and lower surfaces of the center of the engaging body 21 of the engaging member 2 are provided with tearing grooves 23, and the tearing grooves 23 are distributed along the length direction of the engaging body 21; the existence of the tearing groove 23 can tear along the tearing groove 23 when not needed, and only part of the clamping body 21 is left; of course, it is also possible to have a plurality of tear-off slots 23 parallel to each other and not in contact with each other, which may be suitable in the case of a different number of butterfly units 1.

EXAMPLES example 7

Referring to fig. 14 and 15, and to fig. 1 to 13, a multi-unit butterfly-shaped drop cable is substantially the same as embodiment 6, except that: the engaging body 21 on the right side of the tearing groove 23 is provided with a plurality of side grooves 22 which are continuously distributed and vertically penetrate through the engaging body 21, and the engaging body 21 is also provided with a plurality of side grooves 22 which are continuously distributed and vertically penetrate through the engaging body 21 on the left side edge.

EXAMPLES example 8

Referring to fig. 16 and fig. 1 to 15, a multi-unit butterfly-shaped drop cable is a combination of embodiment 5 to embodiment 7.

EXAMPLES example 9

Referring to fig. 17 and 18, and to fig. 1 to 16, a multi-unit butterfly-shaped drop cable is substantially the same as embodiment 1 except that: without central strength member 3, protective sleeve 4 has a plurality of optical fiber ribbons 6 distributed in a stacked manner inside, each optical fiber ribbon 6 having a plurality of optical fibers 61 therein, and there is a gap between optical fiber ribbon 6 and the inner wall of protective sleeve 4.

EXAMPLES example 10

Referring to fig. 19 and 20, and to fig. 1 to 18, a multi-unit butterfly-shaped drop cable is substantially the same as embodiment 1 except that: the protective sleeve 4 has a plurality of insulated wires inside without the central reinforcement 3, and the insulated wires are composed of an electric conductor 71 and an insulating layer 7 covering the electric conductor 71.

EXAMPLES example 11

Referring to fig. 21 and fig. 1 to 20, a multi-unit butterfly-shaped drop cable is substantially the same as embodiment 1, except that: also within the central cavity 30 are two butterfly units 1.

EXAMPLE 12

Referring to fig. 22, and referring to fig. 1 to 21, and particularly fig. 13 to 16, a multi-unit butterfly-shaped drop cable is substantially the same as that of embodiments 6 to 8, except that three butterfly-shaped units 1 and three engaging members 2 are eliminated.

EXAMPLES example 13

Referring to fig. 23 and fig. 1 to 22, a multi-unit butterfly-shaped drop cable is substantially the same as embodiment 12, except that: the central cavity 30 is also provided with three butterfly units 1, and the outer edges of the three outer butterfly units 1 are on the same cylindrical surface with the radius R, so that the space occupation is reduced compared with the embodiment 1 with the same number of butterfly units 1.

In this application, in fig. 6, the outer edge of the butterfly unit 1 refers to the right surface of the unit sheath 13, and the inner edge of the butterfly unit 1 refers to the left surface of the unit sheath 13; the outer edge of the butterfly unit 1 in fig. 9, 10, 11 refers to the right surface of the unit sheath 13 when the butterfly unit 1 is rotated in the same direction as in fig. 6, and the inner edge of the butterfly unit 1 in fig. 9, 10, 11 refers to the left surface of the unit sheath 13 when the butterfly unit 1 is rotated in the same direction as in fig. 6.

In the present application, the structures of embodiment example 2 to embodiment example 8 may be used in any other embodiment example, even in a combination of embodiment example 1 to embodiment example 8.

Further, the present application may be free of the central reinforcing member 3, the protective sleeve 4, the outer sheath 5, the optical fiber ribbon 6, and the insulated wire.

The utility model provides an optical cable is introduced to polycell butterfly-shaped, its characterized in that: the material of the snap-fit part is plastic.

The application states a multiunit butterfly-shaped introducing optical cable its characterized in that: the central reinforcing member is a steel wire or an aluminum wire or a steel wire or a glass fiber reinforced plastic rod.

The application states a multiunit butterfly-shaped introducing optical cable its characterized in that: the material of the protective sleeve is plastic.

The application states a multiunit butterfly-shaped introducing optical cable its characterized in that: the material of the outer sheath is plastic.

The application states a multiunit butterfly-shaped introducing optical cable its characterized in that: the model of the optical fiber is G.652, G.653, G.654, G.655, G.656, A1a, A1b, A1c, A1d or A1 e.

The application states a multiunit butterfly-shaped introducing optical cable its characterized in that: the reinforcing member is a steel wire or an aluminum wire or a steel wire or a glass fiber reinforced plastic rod or aramid yarn or terylene yarn or nylon yarn or glass fiber yarn.

The utility model provides an optical cable is introduced to polycell butterfly-shaped, its characterized in that: the material of the unit sheath is plastic.

The application states a multiunit butterfly-shaped introducing optical cable its characterized in that: the material of the clamping body is plastic.

The application states a multiunit butterfly-shaped introducing optical cable its characterized in that: the material of the extension strip is plastic.

The application states a multiunit butterfly-shaped introducing optical cable its characterized in that: the type of the optical fiber is G.652, G.653, G.654, G.655, G.656, A1a, A1b, A1c, A1d or A1 e.

The application states a multiunit butterfly-shaped introducing optical cable its characterized in that: the material of the insulating layer is plastic.

The utility model provides an optical cable is introduced to polycell butterfly-shaped, its characterized in that: the material of the electrical conductor is copper or aluminum or an alloy.

In the multi-unit butterfly-shaped drop cable, the butterfly-shaped units 1 and the clamping components 2 can be other numbers not less than three, the numbers are represented by n, n is not less than 3, n is an integer, and the number of the butterfly-shaped units 1 is equal to that of the clamping components 2.

In the present application, the engaging member 2 may have a sufficient width, and then the tearing groove 23 may reasonably divide the engaging member, but the dividing is not necessarily equal; for example, with the structure of fig. 13, a change between a six-unit butterfly-shaped drop cable and a three-unit butterfly-shaped drop cable can be realized by setting a reasonable width by reasonable division, and a wider engaging member 2 can be used for the three-unit butterfly-shaped drop cable, and after tearing the tear groove 23, it can be suitably used for the six-unit butterfly-shaped drop cable, and so on, and many more changes are possible, and those skilled in the art can easily realize them in light of the above teaching.

In the application, the multi-unit butterfly-shaped leading-in optical cable is further provided with a central reinforcement 3 and a protective sleeve 4, the central reinforcement 3 is located in the protective sleeve 4 and is jointed with the protective sleeve 4, the butterfly-shaped unit 1 is located outside the protective sleeve 4, and the protective sleeve 4 is located in the central cavity 30; or the multi-unit butterfly-shaped leading-in optical cable is also provided with a protective sleeve 4, a plurality of optical fiber ribbons 6 distributed in a laminated mode are arranged inside the protective sleeve 4, a plurality of optical fibers (61) are arranged in each optical fiber ribbon 6, a gap is formed between each optical fiber ribbon 6 and the inner wall of the protective sleeve 4, the butterfly-shaped unit 1 is positioned outside the protective sleeve 4, and the protective sleeve 4 is positioned in the central cavity 30; or the multi-unit butterfly-shaped leading-in optical cable is also provided with a protective sleeve 4, a plurality of insulated wires are arranged inside the protective sleeve 4, each insulated wire is composed of an electric conductor 71 and an insulating layer 7 for coating the electric conductor 71, the butterfly-shaped unit 1 is positioned outside the protective sleeve 4, and the protective sleeve 4 is positioned in the central cavity 30; or a plurality of butterfly units 1 are arranged in the central cavity 30 of the multi-unit butterfly-shaped drop cable.

The number of units of the butterfly-shaped lead-in optical cable is variable, the butterfly-shaped lead-in optical cable can be assembled and arranged easily, construction and operation are facilitated, and the butterfly-shaped lead-in optical cable can be suitable for different demand occasions.

Compared with the structure that the butterfly-shaped units are plugged into the peripheral holes of the sheath in the prior art, the structure in the application is simpler, the material consumption of the sheath is obviously reduced, the construction is quicker and more convenient, the sheath is necessary to be damaged and can not be recovered when the sheath is stripped in the prior art, the splicing assembly of the butterfly-shaped units is realized through the ingenious combination of the clamping parts 2, and all the butterfly-shaped units form a structure with a cylindrical shape and have higher compressive resistance; if the engaging member 2 is separated from the butterfly unit, it can be combined conveniently and separated conveniently by dispensing. When the structure of fig. 9, 10 and 11 is adopted, the assembly is more convenient and quicker.

In the application, the height of the butterfly-shaped unit is preferably 2.8-3.2mm, and the corresponding width is 1.8-2.2mm, so that the butterfly-shaped unit can be suitable for large-size optical fiber connectors in the prior art; the butterfly unit has a height of 2.4-2.6mm, and a corresponding width of 1.4-1.6mm, which is suitable for small-sized optical fiber connectors in the prior art.

In the present application, the size or diameter of the reinforcing member 12 may be smaller than in the prior art, and is configured to accommodate a certain pulling force and to withstand a certain tension during manufacture so as not to break during coiling or deployment.

In the application, the upper end of the unit sheath is close to the center, which means that the upper surface of the unit sheath is close to the center; in fact only on the upper surface of the unit sheath; also referred to as the upper end of the unit sheath; the lower end of the unit sheath is close to the center, which means that the lower surface of the unit sheath is close to the center; in fact only on the lower surface of the unit sheath; also referred to as the lower end of the unit sheath.

In the application, the cross section of the clamping body 21 is in the shape of a sector arc, which means a part of a circular ring formed by concentric cylinders, and the shape is an ideal shape and is an optimal implementation mode, and the mode can enable the connection and support effects of adjacent butterfly units to be optimal; in fact, the above-described shape is not necessary, and it is only necessary to connect adjacent butterfly units.

The application has the following main beneficial technical effects: the butterfly-shaped unit is convenient to expand, flexible and convenient to assemble, compact in structure, small in occupied space, less in material consumption and low in cost.

The above-described embodiments are merely preferred technical solutions of the present invention, and should not be construed as limiting the present invention. The scope of the present invention is defined by the claims, and is intended to include equivalents of the features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.

Claims

1. A multi-unit butterfly-shaped leading-in optical cable is provided with n identical butterfly-shaped units (1) and n identical clamping components (2), wherein n is more than or equal to 3, n is an integer, and the number of the butterfly-shaped units (1) is equal to that of the clamping components (2); the method is characterized in that: the butterfly-shaped unit (1) is composed of an optical fiber (11), two reinforcing members (12) positioned on the upper side and the lower side of the optical fiber (11) and a unit sheath (13), the unit sheath (13) wraps the optical fiber (11) and the reinforcing members (12), a first sunken embedding opening (141) is formed in the upper surface of the unit sheath (13), and a second sunken embedding opening (142) is formed in the lower surface of the unit sheath (13); the clamping component (2) is composed of a clamping body (21); when the butterfly-shaped unit is assembled, the outer edges of all the butterfly-shaped units (1) are arranged outside, the outer edges of all the butterfly-shaped units (1) are arranged on the same cylindrical surface, the adjacent butterfly-shaped units (1) are connected through one clamping part (2), one end of the clamping part (2) between the adjacent butterfly-shaped units (1) is embedded into the second embedding opening (142) of one butterfly-shaped unit (1), the other end of the clamping part (2) between the adjacent butterfly-shaped units (1) is embedded into the first embedding opening (141) of the other butterfly-shaped unit (1), and the inner space surrounded by all the butterfly-shaped units (1) and the clamping part (2) is a central cavity (30).

2. A multi-unit butterfly-shaped leading-in optical cable is provided with n identical butterfly-shaped units (1) and n identical clamping components (2), wherein n is more than or equal to 3, n is an integer, and the number of the butterfly-shaped units (1) is equal to that of the clamping components (2); the method is characterized in that: the butterfly-shaped unit (1) is composed of an optical fiber, two reinforcing members positioned on the upper side and the lower side of the optical fiber and a unit sheath, the optical fiber and the reinforcing members are coated by the unit sheath, the upper surface of the unit sheath is provided with a protruding clamping part (2), the lower surface of the unit sheath is provided with a sunken second embedding opening (142), and the clamping part (2) and the unit sheath are combined into a whole; the clamping component (2) is composed of a clamping body; when the butterfly-shaped unit is assembled, the outer edges of all the butterfly-shaped units (1) are outside, the outer edges of all the butterfly-shaped units (1) are on the same cylindrical surface, the adjacent butterfly-shaped units (1) are connected through the clamping part (2) of one butterfly-shaped unit (1), the clamping part (2) of the butterfly-shaped unit (1) with the clamping part (2) between the adjacent butterfly-shaped units (1) is embedded into the second embedding opening (142) of the butterfly-shaped unit (1) without the clamping part (2), and the internal space surrounded by all the butterfly-shaped units (1) and the clamping part (2) is a central cavity.

3. A multi-unit butterfly-shaped leading-in optical cable is provided with n identical butterfly-shaped units (1) and n identical clamping components (2), wherein n is more than or equal to 3, n is an integer, and the number of the butterfly-shaped units (1) is equal to that of the clamping components (2); the method is characterized in that: the butterfly-shaped unit (1) is composed of an optical fiber, two reinforcing members positioned on the upper side and the lower side of the optical fiber and a unit sheath, the optical fiber and the reinforcing members are coated by the unit sheath, a protruding clamping part (2) is arranged on the lower surface of the unit sheath, a sunken first embedding opening (141) is formed in the upper surface of the unit sheath, and the clamping part (2) and the unit sheath are combined into a whole; the clamping component (2) is composed of a clamping body; when the butterfly-shaped unit is assembled, the outer edges of all the butterfly-shaped units (1) are outside, the outer edges of all the butterfly-shaped units (1) are on the same cylindrical surface, the adjacent butterfly-shaped units (1) are connected through the clamping part (2) of one butterfly-shaped unit (1), the clamping part (2) of the butterfly-shaped unit (1) with the clamping part (2) between the adjacent butterfly-shaped units (1) is embedded into the first embedding opening (141) of the butterfly-shaped unit (1) without the clamping part (2), and the internal space surrounded by all the butterfly-shaped units (1) and the clamping part (2) is a central cavity.

4. A multi-unit butterfly-shaped leading-in optical cable is provided with n identical butterfly-shaped units (1) and n identical clamping components (2), wherein n is more than or equal to 3, n is an integer, and the number of the butterfly-shaped units (1) is equal to that of the clamping components (2); the method is characterized in that: the butterfly-shaped unit (1) consists of an optical fiber, two reinforcing components positioned on the upper side and the lower side of the optical fiber and a unit sheath, wherein the optical fiber and the reinforcing components are wrapped by the unit sheath, an extended clamping part is arranged on the upper surface of the unit sheath, a sunken second embedding opening is formed in the lower surface of the unit sheath, and the extension strip (121) and the unit sheath are combined into a whole; the clamping component is composed of an extension strip (121), and the outer edge of the extension strip (121) is positioned in the circle of the outer edge of the unit sheath; when the butterfly unit is assembled, the outer edges of all the butterfly units (1) are outside, the outer edges of all the butterfly units (1) are on the same cylindrical surface, adjacent butterfly units (1) are connected through the extension strip (121) of one butterfly unit (1), the clamping part (2) of the butterfly unit (1) with the extension strip (121) between the adjacent butterfly units (1) is embedded into the second embedding opening of the butterfly unit (1) without the extension strip (121), and the internal space enclosed by all the butterfly units (1) and the clamping part is a central cavity.

5. A multi-unit butterfly-shaped leading-in optical cable is provided with n identical butterfly-shaped units (1) and n identical clamping components (2), wherein n is more than or equal to 3, n is an integer, and the number of the butterfly-shaped units (1) is equal to that of the clamping components (2); the method is characterized in that: the butterfly-shaped unit (1) is composed of an optical fiber, two reinforcing members positioned on the upper side and the lower side of the optical fiber and a unit sheath, the optical fiber and the reinforcing members are wrapped by the unit sheath, a protruding clamping part is arranged at the outer edge of the lower surface of the unit sheath, a first sunken embedding opening is formed in the upper surface of the unit sheath, and the clamping part and the unit sheath are combined into a whole; the clamping component is composed of an extension strip, and the outer edge of the extension strip is positioned in the circle of the outer edge of the unit sheath; when the butterfly-shaped unit is assembled, the outer edges of all the butterfly-shaped units (1) are arranged outside, the outer edges of all the butterfly-shaped units (1) are arranged on the same cylindrical surface, the adjacent butterfly-shaped units (1) are connected through the clamping component of one butterfly-shaped unit (1), the extending strip of the butterfly-shaped unit (1) with the clamping component between the adjacent butterfly-shaped units (1) is embedded into the first embedding opening of the butterfly-shaped unit (1) without the clamping component, and the internal space enclosed by all the butterfly-shaped units (1) and the clamping component is a central cavity.

6. The multi-element butterfly drop cable of any one of claims 1 to 5, wherein: the edge of the clamping body (21) of the clamping component (2) is provided with side grooves (22) which are distributed at intervals.

7. The multi-element butterfly drop cable of any one of claims 1 to 5, wherein: the engaging body (21) of the engaging member (2) has tearing grooves (23) at corresponding positions on the upper and lower surfaces of the center thereof, and the tearing grooves (23) are distributed throughout the length direction of the engaging body (21).

8. The multi-element butterfly-shaped drop cable of any one of claims 1 to 5, wherein: the clamping body (21) on the right side of the tearing groove (23) is provided with a plurality of side grooves (22) which are continuously distributed and vertically penetrate through the clamping body (21), and the clamping body (21) close to the left side edge is also provided with a plurality of side grooves (22) which are continuously distributed and vertically penetrate through the clamping body (21).

9. The multi-element butterfly drop cable of any one of claims 1 to 5, wherein: multiunit butterfly-shaped introducing optical cable still has central reinforcement (3), protective case (4), and central reinforcement (3) are located protective case (4) and laminate mutually with protective case (4), and butterfly-shaped unit (1) is located outside protective case (4), and protective case (4) are located central chamber (30).

10. The multi-element butterfly drop cable of claim 9, wherein: the butterfly-shaped unit is characterized by further comprising an outer sheath (5), wherein the outer sheath (5) is located outside the butterfly-shaped unit (1) and covers the butterfly-shaped unit (1).