CN113625404A

CN113625404A - Optical fiber ribbon optical cable easy to peel

Info

Publication number: CN113625404A
Application number: CN202111001186.9A
Authority: CN
Inventors: 任建刚; 黄勤; 黄剑峰; 范丽娜
Original assignee: Yangtze Optical Fibre and Cable Co Ltd
Current assignee: Yangtze Optical Fibre and Cable Co Ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2021-11-09

Abstract

The invention belongs to the technical field of communication optical cables, and discloses an optical fiber ribbon cable easy to strip, which is provided with a containing shell and first to fifth optical fiber ribbon units; the device is characterized in that the accommodating shell is composed of a first protection unit, a second protection unit, a third protection unit and a fourth protection unit; the protection units are internally provided with accommodating cavities, the optical fiber ribbon units are positioned in the accommodating cavities, the width of the outer ends of the accommodating cavities is the minimum, the optical fiber ribbon units cannot escape from the accommodating cavities under the normal condition, the protection units are mutually inclined and connected, and the bending directions of all the protection units are consistent, namely clockwise or anticlockwise; the connecting parts of all the protection units enclose a pentagonal central cavity in the center. The invention has the following main beneficial effects: the structure is more compact, the material consumption is less, the cost is lower, the stripping and the separation are more convenient, the heat dissipation effect is more excellent, and the test and the construction are more convenient.

Description

Optical fiber ribbon optical cable easy to peel

Technical Field

The invention belongs to the technical field of communication optical cables, and particularly relates to an optical fiber ribbon cable easy to peel.

Background

With the development of communication technology, people have made new requirements on the use, performance stability, structural miniaturization, fiber core density and the like of optical fiber ribbon cables.

CN201717055U discloses a self-supporting photoelectric composite cable, which includes a supporting member, a central tube type optical cable body, and a connecting sling for connecting the supporting member and the optical cable body, wherein the optical cable body includes a plurality of optical fibers, a loose tube for disposing the optical fibers therein, a water blocking paste filled between the loose tube and the optical fibers, and a sheath covering the periphery of the loose tube, and the sheath is further provided with a plurality of copper wires for transmitting electrical signals. The copper conductor for transmitting the electric signals is added on the basis of the self-supporting optical cable, so that the optical signal and the electric signal can be simultaneously transmitted by the cable, the construction is convenient, and the optical cable is particularly suitable for overhead use of drop optical cables, buildings and long-distance communication.

CN2689262Y discloses a central beam tube type power supply optical cable with the functions of transmitting electricity or electric signals, which comprises a cable core, an outer protective layer coated outside the cable core and a power transmission lead arranged in the outer protective layer, wherein the cable core comprises optical fibers, a central beam tube, a water blocking layer, a steel strip and fillers, the steel strip is longitudinally coated outside the water blocking layer, the water blocking layer is coated outside the central beam tube, the optical fibers are arranged in the central beam tube, and the fillers are filled in gaps between the optical fibers and the central beam tube; the transmission line has at least two, parallel to each other set up in the outer jacket outside the steel band, the transmission line has different colors that can be distinguished respectively. The cable has the advantages of easy forming, good flexibility, high lateral pressure resistance, convenient stripping in construction and easy identification of the transmission conductor.

CN2713490Y discloses a central beam tube formula optical cable of collection transmission electrical signal and light signal in an organic whole, belongs to communication technical field. The cable comprises a cable core consisting of optical fibers, fillers, a central beam tube and a water blocking layer, a steel belt outside the cable core, a pair of reinforcing members and an outer protective layer extruded outside the steel belt and the pair of reinforcing members, wherein at least one group of covered signal wires for transmitting electric signals is also contained in the outer protective layer along the periphery of the steel belt. The cable has the effects of optical fiber communication and multi-channel electrical signal communication, can reduce the frame/laying of corresponding lines, is beneficial to intensification, saves raw material resources and reduces the cost; the signal wire or the wire pair or the wire group is arranged between the steel belt and the outer sheath layer, so that the signal wire is in a dry structure and is beneficial to construction.

However, the electrical units in the optical cable are not easy to peel off, heat is generated to seriously affect the stable transmission of optical signals, and the structure is not compact enough.

CN211263905U discloses an optical cable easy to peel, which has a support body, an outer sheath, a reinforcement, a loose tube, optical fibers in the loose tube; the support body is characterized by comprising a first support body, a second support body and a body connecting part, wherein the first support body is positioned on the left side of the body connecting part, the second support body is positioned on the right side of the body connecting part, the right lower part of the first support body is connected with the lower part of the body connecting part, the left upper part of the second support body is connected with the upper part of the body connecting part, the body connecting part is formed by combining the plane parts of two semi-cylinders in a relative and staggered manner, the outer edge of the second support body is a part of the surface of a cylinder, and the outer edge of the first support body and the outer edge of the second support body are positioned on the surface of the same cylinder. It has the following main beneficial effects: the structure is more compact, the weight is lighter, the cost is lower, the stripping is easier, the manufacture is easier, and the qualification rate is higher.

CN105700091A discloses an optical cable, comprising: a reinforcement; the outer side of the framework is uniformly distributed with at least three mounting grooves around the axis direction of the reinforcing member, and one end of each mounting groove, which is far away from the reinforcing member, is provided with a notch; an optical fiber ribbon installed in the installation groove; a plurality of covering plates which are matched with the notches and cover the corresponding mounting grooves, and at least one covering plate is provided with a magnetic medium; the waterproof wrapping belt is wrapped outside the framework and the covering plate; the outer sheath is wrapped outside the water-blocking wrapping belt. The covering plate has two functions, namely, the covering plate covers the mounting groove to prevent the water-blocking wrapping belt from being embedded into the mounting groove to influence the quality of the optical cable; and secondly, the covering plate with the magnetic medium can be conveniently positioned when the optical cable is branched, and the mounting groove needing to be pulled open is determined, so that the targeted stripping operation is realized.

However, the above techniques do not provide optical fiber ribbons with more compactness, higher core density, easier inspection and construction, etc.

Disclosure of Invention

In order to solve the above problems, the present invention discloses an optical fiber ribbon cable easy to peel, which is implemented by the following technical solutions.

An optical fiber ribbon cable easy to peel off is provided with an accommodating shell, a first optical fiber ribbon unit, a second optical fiber ribbon unit, a third optical fiber ribbon unit, a fourth optical fiber ribbon unit and a fifth optical fiber ribbon unit; the accommodating shell is of an integrated structure and consists of a first protection unit, a second protection unit, a third protection unit, a fourth protection unit and a fifth protection unit; the first protection unit is composed of a first protection wall and a second protection wall which form a first accommodating cavity between the first protection wall and the second protection wall, the first protection wall and the second protection wall are both of bent structures and are consistent in bending direction, and the first optical fiber ribbon unit is located in the first accommodating cavity; the second protection unit is composed of a third protection wall and a fourth protection wall which form a second containing cavity between the third protection wall and the fourth protection wall, the third protection wall and the fourth protection wall are both of bent structures and are consistent in bending direction, and the second optical fiber ribbon unit is located in the second containing cavity; the third protection unit is composed of a fifth protection wall and a sixth protection wall which form a third containing cavity between the fifth protection wall and the sixth protection wall, the fifth protection wall and the sixth protection wall are of bent structures and are consistent in bending direction, and the third optical fiber ribbon unit is positioned in the third containing cavity; the fourth protection unit is composed of a seventh protection wall and an eighth protection wall which form a fourth containing cavity between the seventh protection wall and the eighth protection wall, the seventh protection wall and the eighth protection wall are both of bent structures and are consistent in bending direction, and the fourth optical fiber ribbon unit is positioned in the fourth containing cavity; the fifth protection unit is composed of a ninth protection wall and a tenth protection wall which form a fifth accommodating cavity therebetween, the ninth protection wall and the tenth protection wall are both of bent structures and are consistent in bending direction, and the fifth optical fiber ribbon unit is positioned in the fifth accommodating cavity; the lower ends of the first protection wall and the second protection wall are connected to the outer surface of the ninth protection wall, the width of the outer end of the first accommodating cavity is the minimum, the first optical fiber ribbon unit is retracted into the outer end of the first accommodating cavity, and the first optical fiber ribbon unit cannot escape from the first accommodating cavity under the condition that the outer end of the first accommodating cavity is not separated; the lower ends of the third protective wall and the fourth protective wall are connected to the outer surface of the first protective wall, the width of the outer end of the second accommodating cavity is the minimum, the second optical fiber ribbon units are retracted into the outer end of the second accommodating cavity, and the second optical fiber ribbon units cannot escape from the second accommodating cavity under the condition that the outer end of the second accommodating cavity is not separated; the lower ends of the fifth protective wall and the sixth protective wall are connected to the outer surface of the third protective wall, the width of the outer end of the third accommodating cavity is the smallest, the third optical fiber ribbon unit is retracted into the outer end of the third accommodating cavity, and the third optical fiber ribbon unit cannot escape from the third accommodating cavity under the condition that the outer end of the third accommodating cavity is not separated; the lower ends of the seventh protective wall and the eighth protective wall are connected to the outer surface of the fifth protective wall, the width of the outer end of the fourth accommodating cavity is the smallest, the fourth optical fiber ribbon unit is retracted into the outer end of the fourth accommodating cavity, and the fourth optical fiber ribbon unit cannot escape from the fourth accommodating cavity under the condition that the outer end of the fourth accommodating cavity is not separated; the lower ends of the ninth protective wall and the tenth protective wall are connected to the outer surface of the seventh protective wall, the width of the outer end of the fifth accommodating cavity is the smallest, the fifth optical fiber ribbon unit is retracted into the outer end of the fifth accommodating cavity, and the fifth optical fiber ribbon unit cannot escape from the fifth accommodating cavity under the condition that the outer end of the fifth accommodating cavity is not separated; the bending directions of all the protection units are consistent, namely, the protection units are clockwise or anticlockwise; the connecting parts of all the protection units enclose a pentagonal central cavity in the center.

An optical fiber ribbon cable easy to peel off is provided with a containing shell, a first optical fiber ribbon unit, a second optical fiber ribbon unit, a third optical fiber ribbon unit and a fourth optical fiber ribbon unit; the accommodating shell is of an integrated structure and consists of a first protection unit, a second protection unit, a third protection unit and a fourth protection unit; the first protection unit is composed of a first protection wall and a second protection wall which form a first accommodating cavity between the first protection wall and the second protection wall, the first protection wall and the second protection wall are both of bent structures and are consistent in bending direction, and the first optical fiber ribbon unit is located in the first accommodating cavity; the second protection unit is composed of a third protection wall and a fourth protection wall which form a second containing cavity between the third protection wall and the fourth protection wall, the third protection wall and the fourth protection wall are both of bent structures and are consistent in bending direction, and the second optical fiber ribbon unit is located in the second containing cavity; the third protection unit is composed of a fifth protection wall and a sixth protection wall which form a third containing cavity between the fifth protection wall and the sixth protection wall, the fifth protection wall and the sixth protection wall are of bent structures and are consistent in bending direction, and the third optical fiber ribbon unit is positioned in the third containing cavity; the fourth protection unit is composed of a seventh protection wall and an eighth protection wall which form a fourth containing cavity between the seventh protection wall and the eighth protection wall, the seventh protection wall and the eighth protection wall are both of bent structures and are consistent in bending direction, and the fourth optical fiber ribbon unit is positioned in the fourth containing cavity; the lower ends of the first protection wall and the second protection wall are connected to the outer surface of the seventh protection wall, the width of the outer end of the first accommodating cavity is the minimum, the first optical fiber ribbon unit is retracted into the outer end of the first accommodating cavity, and the first optical fiber ribbon unit cannot escape from the first accommodating cavity under the condition that the outer end of the first accommodating cavity is not separated; the lower ends of the third protective wall and the fourth protective wall are connected to the outer surface of the first protective wall, the width of the outer end of the second accommodating cavity is the minimum, the second optical fiber ribbon units are retracted into the outer end of the second accommodating cavity, and the second optical fiber ribbon units cannot escape from the second accommodating cavity under the condition that the outer end of the second accommodating cavity is not separated; the lower ends of the fifth protective wall and the sixth protective wall are connected to the outer surface of the third protective wall, the width of the outer end of the third accommodating cavity is the smallest, the third optical fiber ribbon unit is retracted into the outer end of the third accommodating cavity, and the third optical fiber ribbon unit cannot escape from the third accommodating cavity under the condition that the outer end of the third accommodating cavity is not separated; the lower ends of the seventh protective wall and the eighth protective wall are connected to the outer surface of the fifth protective wall, the width of the outer end of the fourth accommodating cavity is the smallest, the fourth optical fiber ribbon unit is retracted into the outer end of the fourth accommodating cavity, and the fourth optical fiber ribbon unit cannot escape from the fourth accommodating cavity under the condition that the outer end of the fourth accommodating cavity is not separated; the bending directions of all the protection units are consistent, namely, the protection units are clockwise or anticlockwise; the connecting parts of all the protection units enclose a quadrilateral central cavity positioned in the center.

An optical fiber ribbon cable easy to peel comprises a containing shell, a first optical fiber ribbon unit, a second optical fiber ribbon unit, a third optical fiber ribbon unit, a fourth optical fiber ribbon unit, a fifth optical fiber ribbon unit and a sixth optical fiber ribbon unit, wherein a first protective layer is coated outside the containing shell; the accommodating shell is of an integrated structure and consists of a first protection unit, a second protection unit, a third protection unit, a fourth protection unit, a fifth protection unit and a sixth protection unit; the first protection unit is composed of a first protection wall and a second protection wall which form a first accommodating cavity between the first protection wall and the second protection wall, the first protection wall and the second protection wall are both of bent structures and are consistent in bending direction, and the first optical fiber ribbon unit is located in the first accommodating cavity; the second protection unit is composed of a third protection wall and a fourth protection wall which form a second containing cavity between the third protection wall and the fourth protection wall, the third protection wall and the fourth protection wall are both of bent structures and are consistent in bending direction, and the second optical fiber ribbon unit is located in the second containing cavity; the third protection unit is composed of a fifth protection wall and a sixth protection wall which form a third containing cavity between the fifth protection wall and the sixth protection wall, the fifth protection wall and the sixth protection wall are of bent structures and are consistent in bending direction, and the third optical fiber ribbon unit is positioned in the third containing cavity; the fourth protection unit is composed of a seventh protection wall and an eighth protection wall which form a fourth containing cavity between the seventh protection wall and the eighth protection wall, the seventh protection wall and the eighth protection wall are both of bent structures and are consistent in bending direction, and the fourth optical fiber ribbon unit is positioned in the fourth containing cavity; the fifth protection unit is composed of a ninth protection wall and a tenth protection wall which form a fifth accommodating cavity therebetween, the ninth protection wall and the tenth protection wall are both of bent structures and are consistent in bending direction, and the fifth optical fiber ribbon unit is positioned in the fifth accommodating cavity; the sixth protection unit is composed of an eleventh protection wall and a twelfth protection wall which form a sixth containing cavity between the eleventh protection wall and the twelfth protection wall, the eleventh protection wall and the twelfth protection wall are both of bent structures and are consistent in bending direction, and the sixth optical fiber ribbon unit is positioned in the sixth containing cavity; the lower ends of the first protection wall and the second protection wall are connected to the outer surface of the eleventh protection wall, the width of the outer end of the first accommodating cavity is the smallest, the first optical fiber ribbon unit is retracted into the outer end of the first accommodating cavity, and the first optical fiber ribbon unit cannot escape from the first accommodating cavity under the condition that the outer end of the first accommodating cavity is not separated; the lower ends of the third protective wall and the fourth protective wall are connected to the outer surface of the first protective wall, the width of the outer end of the second accommodating cavity is the minimum, the second optical fiber ribbon units are retracted into the outer end of the second accommodating cavity, and the second optical fiber ribbon units cannot escape from the second accommodating cavity under the condition that the outer end of the second accommodating cavity is not separated; the lower ends of the fifth protective wall and the sixth protective wall are connected to the outer surface of the third protective wall, the width of the outer end of the third accommodating cavity is the smallest, the third optical fiber ribbon unit is retracted into the outer end of the third accommodating cavity, and the third optical fiber ribbon unit cannot escape from the third accommodating cavity under the condition that the outer end of the third accommodating cavity is not separated; the lower ends of the seventh protective wall and the eighth protective wall are connected to the outer surface of the fifth protective wall, the width of the outer end of the fourth accommodating cavity is the smallest, the fourth optical fiber ribbon unit is retracted into the outer end of the fourth accommodating cavity, and the fourth optical fiber ribbon unit cannot escape from the fourth accommodating cavity under the condition that the outer end of the fourth accommodating cavity is not separated; the lower ends of the ninth protective wall and the tenth protective wall are connected to the outer surface of the seventh protective wall, the width of the outer end of the fifth accommodating cavity is the smallest, the fifth optical fiber ribbon unit is retracted into the outer end of the fifth accommodating cavity, and the fifth optical fiber ribbon unit cannot escape from the fifth accommodating cavity under the condition that the outer end of the fifth accommodating cavity is not separated; the lower ends of the eleventh protective wall and the twelfth protective wall are connected to the outer surface of the ninth protective wall, the width of the outer end of the sixth accommodating cavity is the smallest, the sixth optical fiber ribbon unit is retracted into the outer end of the sixth accommodating cavity, and the sixth optical fiber ribbon unit cannot escape from the sixth accommodating cavity under the condition that the outer end of the sixth accommodating cavity is not separated; the bending directions of all the protection units are consistent, namely, the protection units are clockwise or anticlockwise; the connecting parts of all the protection units enclose a hexagonal central cavity in the center.

The optical fiber ribbon cable easy to strip is characterized in that the adjacent protection units are mutually inclined and connected.

The optical fiber ribbon cable easy to strip is characterized by further comprising a first protective layer, wherein the first protective layer is coated outside the accommodating shell; the outer ends of all protection units are on the same circumference.

The optical fiber ribbon cable easy to strip is characterized in that the first protective layer is coated outside the containing shell in a continuous extrusion molding mode or is coated outside the containing shell in a winding mode.

The optical fiber ribbon cable easy to strip is provided with a central reinforcing part, a second protective layer and a third protective layer, wherein the optical fiber ribbon unit and the accommodating shells are arranged outside the central reinforcing part, the second protective layer covers all the accommodating shells, and the third protective layer covers the second protective layer.

The optical fiber ribbon cable easy to strip is characterized in that a transmission line is additionally arranged between the protection unit and the first protection layer, and the transmission line is composed of a transmission conductor and an insulation layer covering the transmission conductor; a flat accommodating cavity is formed between the protection unit and the first protection layer, the accommodating cavity is reduced from the middle to two sides, and the power transmission line is located at the maximum position of the accommodating cavity.

The optical fiber ribbon cable easy to strip is characterized in that the two sides of the power transmission line in the accommodating cavity are also provided with the insulated wires, and each insulated wire consists of a conductor and an insulated sheath covering the conductor.

The optical fiber ribbon cable easy to strip is characterized in that the transmission line is replaced by a loose tube, and the loose tube is composed of a plurality of optical fibers and a loose tube layer positioned outside the optical fibers.

An optical fiber ribbon cable easy to strip is characterized in that the central cavity is internally provided with a reinforcing element which is consistent with the shape of the central cavity, or the reinforcing element is arranged in the central cavity and at least three sides of the central cavity are tangent.

The invention has the following main beneficial effects: the structure is more compact, the material consumption is less, the cost is lower, the stripping and the separation are more convenient, the heat dissipation effect is more excellent, and the test and the construction are more convenient.

Drawings

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

Fig. 2 is a schematic cross-sectional structure of fig. 1 with the first protective layer removed.

Fig. 3 is a schematic perspective view of a section of the housing used in fig. 1 after dissection.

Fig. 4 is a schematic perspective view of a dissected segment of the example 2.

FIG. 5 is a schematic cross-sectional structure of example 3.

FIG. 6 is a schematic cross-sectional structure of example 4.

FIG. 7 is a schematic cross-sectional structure of example 5.

FIG. 8 is a schematic cross-sectional structure of example 6.

FIG. 9 is a schematic cross-sectional structure of example 7.

Fig. 10 is a schematic cross-sectional structure of embodiment example 8.

Fig. 11 is a schematic cross-sectional structure of example 9.

In order that those skilled in the art will more accurately and clearly understand and practice the present application, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which: 1-accommodating case, 3-first protective layer, 4-central reinforcement, 5-second protective layer, 6-third protective layer, 7-transmission line, 8-insulation line, 9-loose tube, 11-first protective unit, 12-second protective unit, 13-third protective unit, 14-fourth protective unit, 15-fifth protective unit, 161-sixth protective unit, 16-central cavity, 21-first optical fiber ribbon unit, 22-second optical fiber ribbon unit, 23-third optical fiber ribbon unit, 24-fourth optical fiber ribbon unit, 25-fifth optical fiber ribbon unit, 26-sixth protective unit, 71-power transmission conductor, 72-insulating layer, 81-conductor, 82-insulating sheath, 91-optical fiber, 92-loose layer, 111-first protective wall, 112-second protective wall, 113-first accommodating cavity, 121-third protective wall, 122-fourth protective wall, 123-second accommodating cavity, 131-a fifth protective wall, 132-a sixth protective wall, 133-a third accommodating cavity, 141-a seventh protective wall, 142-an eighth protective wall, 143-a fourth accommodating cavity, 151-a ninth protective wall, 152-a tenth protective wall, 153-a fifth accommodating cavity, 1611-an eleventh protective wall, 1621-a twelfth protective wall, 163-a sixth accommodating cavity.

Detailed Description

Examples 1

Referring to fig. 1 to 3, an optical fiber ribbon cable easy to be stripped includes a housing case 1, a first protective layer 3, a first optical fiber ribbon unit 21, a second optical fiber ribbon unit 22, a third optical fiber ribbon unit 23, a fourth optical fiber ribbon unit 24, and a fifth optical fiber ribbon unit 25, wherein the housing case 1 is covered with the first protective layer 3; the accommodating shell 1 is of an integrated structure and is composed of a first protection unit 11, a second protection unit 12, a third protection unit 13, a fourth protection unit 14 and a fifth protection unit 15; the first protection unit 11 is composed of a first protection wall 111 and a second protection wall 112 which form a first accommodation cavity 113 therebetween, the first protection wall 111 and the second protection wall 112 are both of a bent structure and have the same bending direction, and the first optical fiber ribbon unit 21 is located in the first accommodation cavity 113; second protection unit 12 is composed of third protection wall 121 and fourth protection wall 122 which form second accommodation cavity 123 therebetween, third protection wall 121 and fourth protection wall 122 are both of a bent structure and have the same bending direction, and second fiber ribbon unit 22 is located in second accommodation cavity 123; third protection unit 13 is formed by fifth protection wall 131 and sixth protection wall 132 that form third accommodation cavity 133 therebetween, and fifth protection wall 131 and sixth protection wall 132 are both curved structures and have the same bending direction, and third fiber ribbon unit 23 is located in third accommodation cavity 133; fourth protective unit 14 includes a seventh protective wall 141 and an eighth protective wall 142 that form a fourth receiving cavity 143 therebetween, where seventh protective wall 141 and eighth protective wall 142 are both curved structures and have the same bending direction, and fourth fiber ribbon unit 24 is located in fourth receiving cavity 143; fifth protective unit 15 is formed by ninth protective wall 151 and tenth protective wall 152 that form fifth receiving cavity 153 therebetween, ninth protective wall 151 and tenth protective wall 152 are both curved structures and have the same bending direction, and fifth fiber ribbon unit 25 is located in fifth receiving cavity 153; the lower ends of first protective wall 111 and second protective wall 112 are connected to the outer surface of ninth protective wall 151, the width of the outer end of first accommodating cavity 113 is the smallest, first ribbon-units 21 are retracted into the outer end of first accommodating cavity 113, and under the condition that the outer end of first accommodating cavity 113 is not separated, first ribbon-units 21 cannot escape from first accommodating cavity 113; the lower ends of third protective wall 121 and fourth protective wall 122 are connected to the outer surface of first protective wall 111, the width of the outer end of second accommodating cavity 123 is the smallest, second ribbon-units 22 are retracted into the outer end of second accommodating cavity 123, and second ribbon-units 22 cannot escape from second accommodating cavity 123 without separating the outer end of second accommodating cavity 123; the lower ends of fifth protective wall 131 and sixth protective wall 132 are connected to the outer surface of third protective wall 121, the width of the outer end of third accommodating cavity 133 is the smallest, third ribbon-unit 23 is retracted into the outer end of third accommodating cavity 133, and third ribbon-unit 23 does not escape from third accommodating cavity 133 without separating the outer end of third accommodating cavity 133; the lower ends of seventh protective wall 141 and eighth protective wall 142 are connected to the outer surface of fifth protective wall 131, the width of the outer end of fourth cavity 143 is the smallest, fourth ribbon-units 24 are retracted into the outer end of fourth cavity 143, and fourth ribbon-units 24 do not escape from fourth cavity 143 without separating the outer end of fourth cavity 143; the lower ends of ninth protective wall 151 and tenth protective wall 152 are connected to the outer surface of seventh protective wall 141, the width of the outer end of fifth accommodating cavity 153 is the smallest, fifth ribbon-units 25 are retracted into the outer end of fifth accommodating cavity 153, and fifth ribbon-units 25 will not escape from fifth accommodating cavity 153 without separating the outer end of fifth accommodating cavity 153; the bending directions of all the protection units are consistent, namely, the protection units are clockwise or anticlockwise; the outer ends of all the protection units are on the same circumference; the connecting portions of all the protection units enclose a central cavity 16 in the shape of a pentagon in the center.

An optical fiber ribbon cable easy to strip is characterized in that the first protection layer is coated outside the accommodating shell in a continuous extrusion molding mode, and the material of the first protection layer is preferably plastic.

The optical fiber ribbon cable easy to strip can be provided without the first protective layer 3; in this case, the outer ends of all protection units do not necessarily need to be on the same circumference.

EXAMPLES example 2

Referring to fig. 4, an easy-to-peel optical fiber ribbon cable is basically the same as embodiment 1 except that: the first protection layer 3 is wound and covered outside the accommodating shell, and the material of the first protection layer is preferably wire or rope or yarn or cloth, such as a binding tape, non-woven fabric, stop band, polyester binding yarn, water blocking yarn and the like.

EXAMPLE 3

Referring to fig. 5, an easy-to-peel optical fiber ribbon cable includes a housing case 1, a first optical fiber ribbon unit 21, a second optical fiber ribbon unit 22, a third optical fiber ribbon unit 23, and a fourth optical fiber ribbon unit 24; the accommodating shell 1 is of an integrated structure and is composed of a first protection unit 11, a second protection unit 12, a third protection unit 13 and a fourth protection unit 14; the first protection unit 11 is composed of a first protection wall 111 and a second protection wall 112 which form a first accommodation cavity 113 therebetween, the first protection wall 111 and the second protection wall 112 are both of a bent structure and have the same bending direction, and the first optical fiber ribbon unit 21 is located in the first accommodation cavity 113; second protection unit 12 is composed of third protection wall 121 and fourth protection wall 122 which form second accommodation cavity 123 therebetween, third protection wall 121 and fourth protection wall 122 are both of a bent structure and have the same bending direction, and second fiber ribbon unit 22 is located in second accommodation cavity 123; third protection unit 13 is formed by fifth protection wall 131 and sixth protection wall 132 that form third accommodation cavity 133 therebetween, and fifth protection wall 131 and sixth protection wall 132 are both curved structures and have the same bending direction, and third fiber ribbon unit 23 is located in third accommodation cavity 133; fourth protective unit 14 includes a seventh protective wall 141 and an eighth protective wall 142 that form a fourth receiving cavity 143 therebetween, where seventh protective wall 141 and eighth protective wall 142 are both curved structures and have the same bending direction, and fourth fiber ribbon unit 24 is located in fourth receiving cavity 143; the lower ends of first protective wall 111 and second protective wall 112 are connected to the outer surface of seventh protective wall 141, the width of the outer end of first accommodating cavity 113 is the smallest, first ribbon-units 21 are retracted into the outer end of first accommodating cavity 113, and under the condition that the outer end of first accommodating cavity 113 is not separated, first ribbon-units 21 cannot escape from first accommodating cavity 113; the lower ends of third protective wall 121 and fourth protective wall 122 are connected to the outer surface of first protective wall 111, the width of the outer end of second accommodating cavity 123 is the smallest, second ribbon-units 22 are retracted into the outer end of second accommodating cavity 123, and second ribbon-units 22 cannot escape from second accommodating cavity 123 without separating the outer end of second accommodating cavity 123; the lower ends of fifth protective wall 131 and sixth protective wall 132 are connected to the outer surface of third protective wall 121, the width of the outer end of third accommodating cavity 133 is the smallest, third ribbon-unit 23 is retracted into the outer end of third accommodating cavity 133, and third ribbon-unit 23 does not escape from third accommodating cavity 133 without separating the outer end of third accommodating cavity 133; the lower ends of seventh protective wall 141 and eighth protective wall 142 are connected to the outer surface of fifth protective wall 131, the width of the outer end of fourth cavity 143 is the smallest, fourth ribbon-units 24 are retracted into the outer end of fourth cavity 143, and fourth ribbon-units 24 do not escape from fourth cavity 143 without separating the outer end of fourth cavity 143; the bending directions of all the protection units are consistent, namely, the protection units are clockwise or anticlockwise; the connecting portions of all the protection units enclose a central, quadrangular cavity 16 in the center.

In the above-described optical fiber ribbon cable easy to peel, it is preferable that the outer ends of all the protection units are on the same circumference.

The optical fiber ribbon cable easy to strip can be coated with the first protective layer outside the accommodating shell 1.

EXAMPLE 4

Referring to fig. 6, an optical fiber ribbon cable easy to peel off includes a housing case 1, a first optical fiber ribbon unit 21, a second optical fiber ribbon unit 22, a third optical fiber ribbon unit 23, a fourth optical fiber ribbon unit 24, a fifth optical fiber ribbon unit 25, and a sixth optical fiber ribbon unit 26, wherein a first protection layer 3 covers the housing case 1; the accommodating shell 1 is of an integrated structure and is composed of a first protection unit 11, a second protection unit 12, a third protection unit 13, a fourth protection unit 14, a fifth protection unit 15 and a sixth protection unit 161; the first protection unit 11 is composed of a first protection wall 111 and a second protection wall 112 which form a first accommodation cavity 113 therebetween, the first protection wall 111 and the second protection wall 112 are both of a bent structure and have the same bending direction, and the first optical fiber ribbon unit 21 is located in the first accommodation cavity 113; second protection unit 12 is composed of third protection wall 121 and fourth protection wall 122 which form second accommodation cavity 123 therebetween, third protection wall 121 and fourth protection wall 122 are both of a bent structure and have the same bending direction, and second fiber ribbon unit 22 is located in second accommodation cavity 123; third protection unit 13 is formed by fifth protection wall 131 and sixth protection wall 132 that form third accommodation cavity 133 therebetween, and fifth protection wall 131 and sixth protection wall 132 are both curved structures and have the same bending direction, and third fiber ribbon unit 23 is located in third accommodation cavity 133; fourth protective unit 14 includes a seventh protective wall 141 and an eighth protective wall 142 that form a fourth receiving cavity 143 therebetween, where seventh protective wall 141 and eighth protective wall 142 are both curved structures and have the same bending direction, and fourth fiber ribbon unit 24 is located in fourth receiving cavity 143; fifth protective unit 15 is formed by ninth protective wall 151 and tenth protective wall 152 that form fifth receiving cavity 153 therebetween, ninth protective wall 151 and tenth protective wall 152 are both curved structures and have the same bending direction, and fifth fiber ribbon unit 25 is located in fifth receiving cavity 153;

sixth protective section 161 is formed by eleventh protective wall 1611 and twelfth protective wall 1621 that form sixth receiving cavity 163 therebetween, where eleventh protective wall 1611 and twelfth protective wall 1621 are both curved structures and have the same bending direction, and sixth fiber ribbon unit 26 is located in sixth receiving cavity 163; the lower ends of first protective wall 111 and second protective wall 112 are connected to the outer surface of eleventh protective wall 1611, the width of the outer end of first housing cavity 113 is the smallest, first ribbon-units 21 are retracted into the outer end of first housing cavity 113, and first ribbon-units 21 will not escape from first housing cavity 113 without separating the outer end of first housing cavity 113; the lower ends of third protective wall 121 and fourth protective wall 122 are connected to the outer surface of first protective wall 111, the width of the outer end of second accommodating cavity 123 is the smallest, second ribbon-units 22 are retracted into the outer end of second accommodating cavity 123, and second ribbon-units 22 cannot escape from second accommodating cavity 123 without separating the outer end of second accommodating cavity 123; the lower ends of fifth protective wall 131 and sixth protective wall 132 are connected to the outer surface of third protective wall 121, the width of the outer end of third accommodating cavity 133 is the smallest, third ribbon-unit 23 is retracted into the outer end of third accommodating cavity 133, and third ribbon-unit 23 does not escape from third accommodating cavity 133 without separating the outer end of third accommodating cavity 133; the lower ends of seventh protective wall 141 and eighth protective wall 142 are connected to the outer surface of fifth protective wall 131, the width of the outer end of fourth cavity 143 is the smallest, fourth ribbon-units 24 are retracted into the outer end of fourth cavity 143, and fourth ribbon-units 24 do not escape from fourth cavity 143 without separating the outer end of fourth cavity 143; the lower ends of ninth protective wall 151 and tenth protective wall 152 are connected to the outer surface of seventh protective wall 141, the width of the outer end of fifth accommodating cavity 153 is the smallest, fifth ribbon-units 25 are retracted into the outer end of fifth accommodating cavity 153, and fifth ribbon-units 25 will not escape from fifth accommodating cavity 153 without separating the outer end of fifth accommodating cavity 153; the lower ends of eleventh protective wall 1611 and twelfth protective wall 1621 are connected to the outer surface of ninth protective wall 151, the width of the outer end of sixth receiving cavity 163 is minimized, sixth fiber ribbon unit 26 is retracted into the outer end of sixth receiving cavity 163, and sixth fiber ribbon unit 26 does not escape from sixth receiving cavity 163 without separating the outer end of sixth receiving cavity 163; the bending directions of all the protection units are consistent, namely, the protection units are clockwise or anticlockwise; the connecting portions of all the protection units enclose a centrally located hexagonal central cavity 16.

EXAMPLE 5

Referring to fig. 7 and fig. 1 to 6, an easy-to-peel optical fiber ribbon cable includes six housing cases 1 with first protective layers removed, an optical fiber ribbon unit, a central strength member 4, a second protective layer 5, and a third protective layer 6 according to embodiment 3 or embodiment 4 or embodiment 1/2, wherein the housing case 1 is located outside the central strength member 4, the second protective layer 5 covers all of the housing case 1, and the third protective layer 6 covers the second protective layer 5.

EXAMPLE 6

Referring to fig. 8 and fig. 1 to 7, an easy-to-peel optical fiber ribbon cable is basically the same as embodiment 5 except that a housing case 1 is provided with a first protective layer 3, and embodiments 1 and 2 can also be used.

EXAMPLES example 7

Referring to fig. 9 and fig. 1 to 4, an easy-to-peel optical fiber ribbon cable is basically the same as embodiment 3 except that: one, add the first protective layer 3 which covers the housing; secondly, a transmission line 7 is added between the protection unit and the first protection layer, and the transmission line 7 is composed of a transmission conductor 71 and an insulation layer 72 covering the transmission conductor; a flat accommodating cavity is formed between the protection unit and the first protection layer, the accommodating cavity becomes smaller from the middle to two sides, and the power transmission line 7 is located at the maximum position of the accommodating cavity.

EXAMPLES example 8

Referring to fig. 10, and fig. 1 to 4 and 9, an optical fiber ribbon cable easy to peel is substantially the same as embodiment 7, except that an insulating wire 8 is further disposed on both sides of the power transmission line 7 in the accommodation cavity, and the insulating wire 8 is composed of a conductive body 81 and an insulating sheath 82 covering the conductive body.

EXAMPLES example 9

Referring to fig. 11, and to fig. 1 to 4 and 10, an optical fiber ribbon cable easy to peel is basically the same as embodiment 8 except that the transmission line is replaced by a loose tube 9, and the loose tube 9 is composed of a plurality of optical fibers 91 and a loose layer 92 outside the plurality of optical fibers.

In the present application, the housing cases in the

embodiments

8 and 9 may be adopted in other embodiments.

In the present application, the housing case is not limited to the case of having 4, 5, 6 protection units as exemplified in the embodiment examples, and may have other plural ones as necessary.

In this application, a reinforcing element may be placed within the central cavity that conforms to its shape, or is tangential to at least three sides thereof.

In the present application, the

embodiments

5 and 6 are not limited to the case of six housing cases, and a plurality of housing cases not smaller than 3 may be used.

In the present application, the first protective layer, the second protective layer, and the third protective layer are only an example, and are not limited to a single layer, but may also be a composite layer, for example, the first protective layer is composed of a water blocking tape/an aluminum tape/a steel tape as an inner layer, and a sheath as an outer layer; and so on, not to mention.

In the present application, the ribbon unit may be a single ribbon, or a combination/stack of multiple ribbons, etc., each having an optical fiber therein.

In the present application, the preferred material of the housing casing is plastic or metal, preferably a material with better elasticity/toughness.

In this application, the preferred material for the power transmission conductor is copper or aluminum or an alloy.

In the present application, the preferred material for the insulating layer is plastic.

In the present application, the preferred material for the insulating sheath is plastic.

In the present application, the preferred material of the loose tube layer is plastic or metal, and polybutylene terephthalate is preferred as plastic.

In the present application, the optical fiber/optical fiber is a single mode or multimode fiber; the model number is G.651 or G.652 or G.653 or G.654 or G.655 or G.656 or G.657 or A1a or A1b or A1c or A1d or A1e or OM1 or OM2 or OM3 or OM 4.

In the present application, adjacent protection units are mutually inclined and connected.

In the application, on one hand, the bent and inclined protection units can reasonably utilize the space, so that the product has a smaller structure, occupies smaller space, consumes less material and has lower cost; on the other hand, the structure of the accommodating cavity ensures the stable structure of the optical fiber ribbon unit, and meanwhile, the optical fiber ribbon unit can be conveniently taken and placed and cannot escape in normal conditions; the optical cable in the prior art can only break the whole loose tube to obtain the corresponding optical fiber ribbon, but the separation is effectively carried out in the application, so long as an accurate protection unit is found, and the unrecoverable damage is not caused; moreover, in the application, the curved accommodating cavity enables the structure of the optical fiber ribbon inside to be more stable and not easy to slip and roll. In the application, compared with the central beam tube type ribbon cable, the product structure is smaller because the reinforcing piece is moved to the central cavity; in the application, when the loose tube is provided, the communication capacity is additionally increased, so that the loose tube can be suitable for occasions with higher fiber core density and higher application requirements; when the power transmission line is provided, the product has the function of power transmission, compared with the prior art that the power transmission line is embedded into the sheath, the stripping and the separation are more convenient, the testing/construction speed is higher, the space is more reasonably utilized, various occasions such as fiber to the home, the building and the like can be realized, no additional application for power supply is needed, the space is effectively utilized, and the heat dissipation effect is more excellent; when the insulated wire is provided, weak current signals such as monitoring, telephone and the like can be transmitted, additional wiring is not needed, and compared with the prior art that the insulated wire is embedded into a sheath, stripping and separation are more convenient, so that the testing/construction speed is higher; of course, the power line, the insulated wire and the loose tube can be provided at the same time.

The above-mentioned embodiments are merely preferred technical solutions of the present invention, and should not be construed as limiting the present invention. The protection scope of the present invention is defined by the claims, and includes equivalents of technical 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. An optical fiber ribbon cable easy to peel off is provided with a containing shell (1), a first optical fiber ribbon unit (21), a second optical fiber ribbon unit (22), a third optical fiber ribbon unit (23), a fourth optical fiber ribbon unit (24) and a fifth optical fiber ribbon unit (25); the novel storage case is characterized in that the storage case (1) is of an integrated structure and consists of a first protection unit (11), a second protection unit (12), a third protection unit (13), a fourth protection unit (14) and a fifth protection unit (15); the first protection unit (11) is composed of a first protection wall (111) and a second protection wall (112) which form a first accommodating cavity (113) between the first protection wall and the second protection wall, the first protection wall (111) and the second protection wall (112) are both of bent structures and are consistent in bending direction, and the first optical fiber ribbon unit (21) is located in the first accommodating cavity (113); the second protection unit (12) is composed of a third protection wall (121) and a fourth protection wall (122) which form a second containing cavity (123) between the third protection wall and the fourth protection wall, the third protection wall (121) and the fourth protection wall (122) are both of bent structures and are consistent in bending direction, and the second optical fiber ribbon unit (22) is located in the second containing cavity (123); the third protection unit (13) is composed of a fifth protection wall (131) and a sixth protection wall (132) which form a third containing cavity (133) between the fifth protection wall and the sixth protection wall, the fifth protection wall (131) and the sixth protection wall (132) are both of bent structures and are consistent in bending direction, and the third optical fiber ribbon unit (23) is located in the third containing cavity (133); the fourth protection unit (14) is composed of a seventh protection wall (141) and an eighth protection wall (142) which form a fourth containing cavity (143) between the seventh protection wall and the eighth protection wall, the seventh protection wall (141) and the eighth protection wall (142) are both of bent structures and are consistent in bending direction, and the fourth optical fiber ribbon unit (24) is positioned in the fourth containing cavity (143); the fifth protection unit (15) is composed of a ninth protection wall (151) and a tenth protection wall (152) which form a fifth accommodating cavity (153) therebetween, the ninth protection wall (151) and the tenth protection wall (152) are both of bent structures and are consistent in bending direction, and the fifth optical fiber ribbon unit (25) is positioned in the fifth accommodating cavity (153); the lower ends of the first protection wall (111) and the second protection wall (112) are connected to the outer surface of the ninth protection wall (151), the width of the outer end of the first accommodating cavity (113) is minimum, the first optical fiber ribbon units (21) are retracted into the outer end of the first accommodating cavity (113), and under the condition that the outer end of the first accommodating cavity (113) is not separated, the first optical fiber ribbon units (21) cannot escape from the first accommodating cavity (113); the lower ends of the third protection wall (121) and the fourth protection wall (122) are connected to the outer surface of the first protection wall (111), the width of the outer end of the second accommodating cavity (123) is minimum, the second optical fiber ribbon units (22) are retracted into the outer end of the second accommodating cavity (123), and under the condition that the outer end of the second accommodating cavity (123) is not separated, the second optical fiber ribbon units (22) cannot escape from the second accommodating cavity (123); the lower ends of the fifth protective wall (131) and the sixth protective wall (132) are connected to the outer surface of the third protective wall (121), the width of the outer end of the third accommodating cavity (133) is minimum, the third optical fiber ribbon unit (23) is retracted into the outer end of the third accommodating cavity (133), and the third optical fiber ribbon unit (23) cannot escape from the third accommodating cavity (133) under the condition that the outer end of the third accommodating cavity (133) is not separated; the lower ends of the seventh protective wall (141) and the eighth protective wall (142) are connected to the outer surface of the fifth protective wall (131), the width of the outer end of the fourth accommodating cavity (143) is minimum, the fourth optical fiber ribbon unit (24) is retracted into the outer end of the fourth accommodating cavity (143), and the fourth optical fiber ribbon unit (24) cannot escape from the fourth accommodating cavity (143) under the condition that the outer end of the fourth accommodating cavity (143) is not separated; the lower ends of the ninth protective wall (151) and the tenth protective wall (152) are connected to the outer surface of the seventh protective wall (141), the width of the outer end of the fifth accommodating cavity (153) is minimum, the fifth optical fiber ribbon unit (25) is retracted into the outer end of the fifth accommodating cavity (153), and the fifth optical fiber ribbon unit (25) cannot escape from the fifth accommodating cavity (153) under the condition that the outer end of the fifth accommodating cavity (153) is not separated; the bending directions of all the protection units are consistent, namely, the protection units are clockwise or anticlockwise; the connecting portions of all the protection units enclose a central pentagonal cavity (16) in the center.

2. An optical fiber ribbon cable easy to peel off is provided with a containing shell (1), a first optical fiber ribbon unit (21), a second optical fiber ribbon unit (22), a third optical fiber ribbon unit (23) and a fourth optical fiber ribbon unit (24); the novel storage case is characterized in that the storage case (1) is of an integrated structure and consists of a first protection unit (11), a second protection unit (12), a third protection unit (13) and a fourth protection unit (14); the first protection unit (11) is composed of a first protection wall (111) and a second protection wall (112) which form a first accommodating cavity (113) between the first protection wall and the second protection wall, the first protection wall (111) and the second protection wall (112) are both of bent structures and are consistent in bending direction, and the first optical fiber ribbon unit (21) is located in the first accommodating cavity (113); the second protection unit (12) is composed of a third protection wall (121) and a fourth protection wall (122) which form a second containing cavity (123) between the third protection wall and the fourth protection wall, the third protection wall (121) and the fourth protection wall (122) are both of bent structures and are consistent in bending direction, and the second optical fiber ribbon unit (22) is located in the second containing cavity (123); the third protection unit (13) is composed of a fifth protection wall (131) and a sixth protection wall (132) which form a third containing cavity (133) between the fifth protection wall and the sixth protection wall, the fifth protection wall (131) and the sixth protection wall (132) are both of bent structures and are consistent in bending direction, and the third optical fiber ribbon unit (23) is located in the third containing cavity (133); the fourth protection unit (14) is composed of a seventh protection wall (141) and an eighth protection wall (142) which form a fourth containing cavity (143) between the seventh protection wall and the eighth protection wall, the seventh protection wall (141) and the eighth protection wall (142) are both of bent structures and are consistent in bending direction, and the fourth optical fiber ribbon unit (24) is positioned in the fourth containing cavity (143); the lower ends of the first protection wall (111) and the second protection wall (112) are connected to the outer surface of the seventh protection wall (141), the width of the outer end of the first accommodating cavity (113) is minimum, the first optical fiber ribbon units (21) are retracted into the outer end of the first accommodating cavity (113), and under the condition that the outer end of the first accommodating cavity (113) is not separated, the first optical fiber ribbon units (21) cannot escape from the first accommodating cavity (113); the lower ends of the third protection wall (121) and the fourth protection wall (122) are connected to the outer surface of the first protection wall (111), the width of the outer end of the second accommodating cavity (123) is minimum, the second optical fiber ribbon units (22) are retracted into the outer end of the second accommodating cavity (123), and under the condition that the outer end of the second accommodating cavity (123) is not separated, the second optical fiber ribbon units (22) cannot escape from the second accommodating cavity (123); the lower ends of the fifth protective wall (131) and the sixth protective wall (132) are connected to the outer surface of the third protective wall (121), the width of the outer end of the third accommodating cavity (133) is minimum, the third optical fiber ribbon unit (23) is retracted into the outer end of the third accommodating cavity (133), and the third optical fiber ribbon unit (23) cannot escape from the third accommodating cavity (133) under the condition that the outer end of the third accommodating cavity (133) is not separated; the lower ends of the seventh protective wall (141) and the eighth protective wall (142) are connected to the outer surface of the fifth protective wall (131), the width of the outer end of the fourth accommodating cavity (143) is minimum, the fourth optical fiber ribbon unit (24) is retracted into the outer end of the fourth accommodating cavity (143), and the fourth optical fiber ribbon unit (24) cannot escape from the fourth accommodating cavity (143) under the condition that the outer end of the fourth accommodating cavity (143) is not separated; the bending directions of all the protection units are consistent, namely, the protection units are clockwise or anticlockwise; the connecting portions of all the protection units enclose a quadrangular central cavity (16) in the center.

3. An optical fiber ribbon cable easy to peel off is provided with a containing shell (1), a first optical fiber ribbon unit (21), a second optical fiber ribbon unit (22), a third optical fiber ribbon unit (23), a fourth optical fiber ribbon unit (24), a fifth optical fiber ribbon unit (25) and a sixth optical fiber ribbon unit (26), wherein a first protective layer (3) is coated outside the containing shell (1); the novel storage case is characterized in that the storage case (1) is of an integrated structure and consists of a first protection unit (11), a second protection unit (12), a third protection unit (13), a fourth protection unit (14), a fifth protection unit (15) and a sixth protection unit (161); the first protection unit (11) is composed of a first protection wall (111) and a second protection wall (112) which form a first accommodating cavity (113) between the first protection wall and the second protection wall, the first protection wall (111) and the second protection wall (112) are both of bent structures and are consistent in bending direction, and the first optical fiber ribbon unit (21) is located in the first accommodating cavity (113); the second protection unit (12) is composed of a third protection wall (121) and a fourth protection wall (122) which form a second containing cavity (123) between the third protection wall and the fourth protection wall, the third protection wall (121) and the fourth protection wall (122) are both of bent structures and are consistent in bending direction, and the second optical fiber ribbon unit (22) is located in the second containing cavity (123); the third protection unit (13) is composed of a fifth protection wall (131) and a sixth protection wall (132) which form a third containing cavity (133) between the fifth protection wall and the sixth protection wall, the fifth protection wall (131) and the sixth protection wall (132) are both of bent structures and are consistent in bending direction, and the third optical fiber ribbon unit (23) is located in the third containing cavity (133); the fourth protection unit (14) is composed of a seventh protection wall (141) and an eighth protection wall (142) which form a fourth containing cavity (143) between the seventh protection wall and the eighth protection wall, the seventh protection wall (141) and the eighth protection wall (142) are both of bent structures and are consistent in bending direction, and the fourth optical fiber ribbon unit (24) is positioned in the fourth containing cavity (143); the fifth protection unit (15) is composed of a ninth protection wall (151) and a tenth protection wall (152) which form a fifth accommodating cavity (153) therebetween, the ninth protection wall (151) and the tenth protection wall (152) are both of bent structures and are consistent in bending direction, and the fifth optical fiber ribbon unit (25) is positioned in the fifth accommodating cavity (153); the sixth protection unit (161) is composed of an eleventh protection wall (1611) and a twelfth protection wall (1621) which form a sixth containing cavity (163) therebetween, the eleventh protection wall (1611) and the twelfth protection wall (1621) are both of bent structures and have the same bending direction, and the sixth optical fiber ribbon unit (26) is positioned in the sixth containing cavity (163); the lower ends of the first protection wall (111) and the second protection wall (112) are connected to the outer surface of the eleventh protection wall (1611), the width of the outer end of the first accommodating cavity (113) is minimum, the first optical fiber ribbon units (21) are retracted into the outer end of the first accommodating cavity (113), and under the condition that the outer end of the first accommodating cavity (113) is not separated, the first optical fiber ribbon units (21) cannot escape from the first accommodating cavity (113); the lower ends of the third protection wall (121) and the fourth protection wall (122) are connected to the outer surface of the first protection wall (111), the width of the outer end of the second accommodating cavity (123) is minimum, the second optical fiber ribbon units (22) are retracted into the outer end of the second accommodating cavity (123), and under the condition that the outer end of the second accommodating cavity (123) is not separated, the second optical fiber ribbon units (22) cannot escape from the second accommodating cavity (123); the lower ends of the fifth protective wall (131) and the sixth protective wall (132) are connected to the outer surface of the third protective wall (121), the width of the outer end of the third accommodating cavity (133) is minimum, the third optical fiber ribbon unit (23) is retracted into the outer end of the third accommodating cavity (133), and the third optical fiber ribbon unit (23) cannot escape from the third accommodating cavity (133) under the condition that the outer end of the third accommodating cavity (133) is not separated; the lower ends of the seventh protective wall (141) and the eighth protective wall (142) are connected to the outer surface of the fifth protective wall (131), the width of the outer end of the fourth accommodating cavity (143) is minimum, the fourth optical fiber ribbon unit (24) is retracted into the outer end of the fourth accommodating cavity (143), and the fourth optical fiber ribbon unit (24) cannot escape from the fourth accommodating cavity (143) under the condition that the outer end of the fourth accommodating cavity (143) is not separated; the lower ends of the ninth protective wall (151) and the tenth protective wall (152) are connected to the outer surface of the seventh protective wall (141), the width of the outer end of the fifth accommodating cavity (153) is minimum, the fifth optical fiber ribbon unit (25) is retracted into the outer end of the fifth accommodating cavity (153), and the fifth optical fiber ribbon unit (25) cannot escape from the fifth accommodating cavity (153) under the condition that the outer end of the fifth accommodating cavity (153) is not separated; the lower ends of an eleventh protection wall (1611) and a twelfth protection wall (1621) are connected to the outer surface of the ninth protection wall (151), the width of the outer end of the sixth accommodating cavity (163) is minimum, the sixth optical fiber ribbon unit (26) is retracted into the outer end of the sixth accommodating cavity (163), and the sixth optical fiber ribbon unit (26) cannot escape from the sixth accommodating cavity (163) under the condition that the outer end of the sixth accommodating cavity (163) is not separated; the bending directions of all the protection units are consistent, namely, the protection units are clockwise or anticlockwise; the connecting portions of all the protection units enclose a hexagonal central cavity (16) in the center.

4. An easily strippable fiber optic ribbon cable according to any one of claims 1 to 3, wherein adjacent protection units are inclined to each other and connected.

5. The optical fiber ribbon cable easy to strip of claim 4, further comprising a first protective layer (3), wherein the first protective layer (3) is coated outside the accommodating case (1); the outer ends of all protection units are on the same circumference.

6. The optical fiber ribbon cable easy to peel off as claimed in claim 5, wherein the first protective layer is continuously extrusion-coated outside the containing case or is wound around the containing case.

7. An optical fiber ribbon cable easy to strip is provided with a central reinforcing member (4), a second protective layer (5) and a third protective layer (6); characterized by further having a plurality of the accommodation cases (1) of claim 1 or claim 2 or claim 3 or claim 5 or claim 6, and a number of optical fiber ribbon units corresponding to the number of optical fiber ribbon units of claim 1 or claim 2 or claim 3 or claim 5 or claim 6; the optical fiber ribbon units are located in the accommodating cavity of the accommodating shell, the accommodating shell (1) is located outside the central reinforcing part (4), the second protective layer (5) covers all the accommodating shell (1), and the third protective layer (6) covers the second protective layer (5).

8. An optical fiber ribbon cable easy to peel according to claim 5 or claim 6, wherein a power line (7) is added between the protective unit and the first protective layer, the power line (7) being constituted by a power conductor (71) and an insulating layer (72) covering the power conductor; a flat accommodating cavity is formed between the protection unit and the first protection layer, the accommodating cavity becomes smaller from the middle to two sides, and the power transmission line (7) is located at the maximum position of the accommodating cavity.

9. The optical fiber ribbon cable easy to strip according to claim 8, wherein an insulated wire (8) is further disposed on both sides of the power line (7) in the accommodating chamber, and the insulated wire (8) is composed of a conductive body (81) and an insulating sheath (82) covering the conductive body.

10. An optical fiber ribbon cable easy to peel according to claim 9, wherein the power transmission line is replaced with a loose tube (9), the loose tube (9) being composed of a plurality of optical fibers (91) and a loose layer (92) outside the plurality of optical fibers; the central cavity has a stiffening element therein that conforms to the shape of the central cavity, or a stiffening element within the central cavity that is tangent to at least three sides of the central cavity.