CN208283617U - A kind of house wiring optical fiber cable - Google Patents

Abstract

The utility model relates to a kind of house wiring optical fiber cables, it is related to technical field of optical fiber, solve the problems, such as contraposition inaccuracy when cable connection, interior total sheath is wrapped in including two fiber units arranged in parallel and by two fiber units, the fiber unit includes the unit inner sheath for being set to its internal optical fiber and outer layer, total sheath includes the contact portion being fitted on unit inner sheath and the interconnecting piece that separates with unit inner sheath, the raised line along the setting of total length direction is provided on the contact portion inner wall, the groove opposite with raised line position is offered on the unit inner sheath outer wall, the raised line engaging is in a groove.When carrying out cable jacket connecting, make optical fiber accurate contraposition, splice locations stable structure is unlikely to deform, and is reduced the decaying of optical fiber in use, is improved effectiveness.

Description

A kind of house wiring optical fiber cable

Technical field

The utility model relates to technical field of optical fiber, in particular to a kind of house wiring optical fiber cable.

Background technique

In recent years, as country and relevant departments support that fiber to the home is fast-developing to the policy of " broadband China " strategy. Moreover, because the characteristics such as the transmission frequency bandwidth of optical fiber, message capacity are big, decaying is small, keep the usage amount of house wiring optical cable fast Speed increases.

Authorization Notice No. discloses a kind of oval house wiring optical cable for the Chinese patent of CN203870305U, including Fire retardant jacket, and it is set to stiffener inside the fire retardant jacket and at least a pair of of tight tube fiber, the fire retardant jacket is A pair of symmetrical " V " font, which is provided with, along its axial direction on oval sheath removes mouth, the stiffener and at least a pair Tight tube fiber is directly arranged in fire retardant jacket, or is located in fire retardant jacket after being coated by enhancement layer.Two this optical cables are protecting When set connects, two opposite tight tube fibers are easy to contraposition inaccuracy, and opposite twisting occurs, and continual-connecting-part easily deforms, Fibercuts is caused, is easy to cause optical fiber attenuation to increase in use, reduces effectiveness.

Utility model content

The purpose of this utility model is to provide a kind of house wiring optical fiber cables, are carrying out cable jacket connecting, keep optical fiber quasi- Really contraposition, splice locations stable structure are unlikely to deform, and are reduced the decaying of optical fiber in use, are improved effectiveness.

The above-mentioned purpose of the utility model has the technical scheme that

A kind of house wiring optical fiber cable is wrapped in interior including two fiber units arranged in parallel and by two fiber units Total sheath, the fiber unit includes the unit inner sheath for being set to its internal optical fiber and outer layer, and total sheath includes The contact portion being fitted on unit inner sheath and the interconnecting piece separated with unit inner sheath are provided on the contact portion inner wall Along the raised line of total length direction setting, the groove opposite with raised line position, institute are offered on the unit inner sheath outer wall State raised line engaging in a groove.

By using above-mentioned technical proposal, raised line, unit inner sheath are set in the contact portion of total sheath and unit inner sheath Outer wall on groove is set, when carrying out two cable connections, total sheath of continual-connecting-part is first cut away one section, retains raised line, Then the raised line on an optical cable is inserted into the groove of another optical cable, then puts on the total sheath cut away again, passes through Raised line is matched with groove, and two optical cables is enable accurately to position, and due to the mutual limitation of raised line and groove, Neng Goufang Only continual-connecting-part twists, and guarantees the stable structure of continual-connecting-part, and the optical fiber of connecting will not be broken, and guarantees the efficiency of transmission of signal.

Preferably, the raised line includes the cutting extending into groove and the dowel that connect with contact portion, it is described The width of dowel is less than the width of cutting.

By using above-mentioned technical proposal, raised line is made of width two parts, facilitates total sheath in cutting, raised line and total The separation of sheath reduces cutting difficulty.

Preferably, the card slot being arranged along its length is offered on the two sides of the cutting, the two of the groove The strip being fastened in card slot is provided on side wall.

By using above-mentioned technical proposal, enable cutting is stronger to be inserted into groove, makes the connecting part of optical cable What is connected is stronger.

Preferably, being provided with the fin being arranged along its length on the inside of the interconnecting piece, the fin is contradicted On two unit inner sheaths.

By using above-mentioned technical proposal, two fiber units are resisted by fin, are prevented in total sheath of fiber unit Rotation or twisting, make the fiber unit of continual-connecting-part keep stable state, and protection optical fiber is not broken.

Preferably, the fin is and total sheath is integrally formed, section is triangular in shape structure.

By using above-mentioned technical proposal, fin and total sheath one, convenient for production, structure triangular in shape can more be squeezed Two fiber units are supported between two fiber units.

Preferably, the thickness of the contact portion is greater than the thickness of interconnecting piece.

By using above-mentioned technical proposal, when optical cable laying in the plane when, interconnecting piece and plane contact, deformation quantity compared with Small, contact portion the case where stretching or compressing can occur because of bending, and the setting of its thickness is a little big, make contact portion in deformation There can be the fiber unit inside enough thickness protections.

Preferably, the contact portion outer surface offers V-shaped cutting mouth along the axial direction of total sheath.

It is convenient to be cut total sheath open along longitudinal direction by V-shaped cutting mouth by using above-mentioned technical proposal, it will cut open One section of total sheath be set at the connecting of optical cable, make the more complete, more closed of total sheath after the completion of connecting.

Preferably, the fiber unit is single mode optical fiber or multimode fibre, inside is filled with aramid yarn material.

By using above-mentioned technical proposal, aramid yarn is a kind of high-modulus aramid yarn, has density small, stretch modulus is very Height, breaking strength is higher and the more low special performance of fracture elongation；Filler material is done with aramid yarn material, makes optical fiber higher At a temperature of, it is able to maintain intrinsic stability.

Preferably, the unit inner sheath is the cylindrical structure made of polythene material.

By using above-mentioned technical proposal, polythene material dielectric properties are good, and permeability rate is low, and unit inner sheath can play very Good resistance effect.

Preferably, total sheath is the tubular construction made of pvc material.

By using above-mentioned technical proposal, total sheath has preferable fire retardancy, preferably the optical fiber inside protection.

In conclusion the utility model has the following beneficial effects:

1, the optical cable of the utility model can be positioned by mutually matched connected structure when connecting, make to connect Two optical cables accurately connected, guarantee connect two optical cables have preferable signal propagation efficiency；

2, the mutual limitation of cable connection portion raised line and groove, can prevent continual-connecting-part fiber unit from twisting, and guarantee The optical fiber of the stable structure of continual-connecting-part, connecting is not easy to break, guarantees the efficiency of transmission of signal；

3, in cable connection, the total sheath cut away can be reused, is coated on continual-connecting-part, after the completion of making connecting Total sheath it is more complete, more closed.

Detailed description of the invention

Fig. 1 is the cross section structure schematic diagram of the utility model optical cable；

Fig. 2 is the partial enlarged view in Fig. 1 at A；

Fig. 3 is structural schematic diagram of the utility model optical cable when connecting.

In figure, 1, fiber unit；10, optical fiber；11, unit inner sheath；12, groove；13, strip；14, aramid yarn material；2, Total sheath；21, contact portion；22, interconnecting piece；23, raised line；231, cutting；232, dowel；233, card slot；24, fin；25,V Font cutting mouth.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

The utility model create description in, it is to be understood that term " center ", "upper", "lower", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute The orientation or positional relationship shown is merely for convenience of the creation of description the utility model and simplifies description, rather than indication or suggestion Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this The limitation of utility model.

A kind of house wiring optical fiber cable is mainly made of fiber unit 1 and 2 two parts of total sheath, optical fiber as shown in Fig. 1 Unit 1 is two groups, and size is identical and is arranged in parallel, and two groups of fiber units 1 fit together, and is wrapped in the interior of total sheath 2 Portion.

Fiber unit 1 mainly includes external unit inner sheath 11 and internal optical fiber 10, and unit inner sheath 11 is cylinder Shape structure, is made of polythene material.Fiber unit 1 can use single mode optical fiber or multimode fibre, adopt in the present embodiment Aramid yarn material 14 is filled in unit inner sheath 11 with single mode optical fiber to protect optical fiber 10.

Total sheath 2 is the tubular construction made of pvc material, and two fiber units 1 are fully wrapped around firmly, total to protect Set 2 includes the interconnecting piece at two 21 both ends of contact portion of contact portion 21 and connection in crescent being attached on unit inner sheath 11 22, contact portion 21 is located at the left and right sides of fiber unit 1, interconnecting piece 22 be located at the upper and lower surface of fiber unit 1 without with optical fiber Unit 1 contacts, and the thickness of contact portion 21 is greater than the thickness of interconnecting piece 22, and contact portion 21 is enable to have enough thickness when stretching Fiber unit 1 inside degree protection.

The two sides up and down of 11 outer wall of unit inner sheath offer the groove 12 being arranged along its length, contact portion 21 it is upper Be provided with the raised line 23 to intermediate projections on the inner wall of lower both ends, raised line 23 along total sheath 2 length direction setting and with groove 12 Position it is opposite, can be embedded into groove 12 just.

Two 11 outer surfaces of unit inner sheath are inconsistent and subtriangular space is formed between interconnecting piece 22, connection Section fin 24 triangular in shape is provided on the inner wall in portion 22, fin 24 and total sheath 2 are integrated the structure of injection molding, and It is inconsistent with two unit inner sheaths 11, it is used to support two fiber units 1.

V-shaped cutting mouth 25, axial direction of the V-shaped cutting mouth 25 along total sheath 2 are offered on the outer wall of side contact portion 21 It opens up, it is convenient to be cut total sheath 2 open along longitudinal direction by V-shaped cutting mouth 25.

As shown in Fig. 2, the T-shaped structure of raised line 23, including the biggish cutting 231 of end portion width and root width it is lesser Dowel 232, dowel 232 are connected on contact portion 21, and cutting 231 is inserted into groove 12 and is against the slot bottom of groove 12. When it is implemented, two sides of cutting 231 offer arc-shaped card slot 233, card slot 233 is along the length side of cutting 231 To setting, the two side walls of groove 12 are equipped with arc-shaped strip 13, when cutting 231 is against the slot bottom of groove 12, strip 13 It is stuck in card slot 233, enables cutting 231 is stronger to be inserted into groove 12.

As shown in Fig. 3, the optical cable of the utility model cuts away total sheath of two one segment length of end of cable when connecting 2, expose internal unit inner sheath 11, retains the raised line 23 on the optical cable of left side；The 11 section phase of unit inner sheath of two optical cables It supports, the length of contact portion 21 is less than the length of unit inner sheath 11, and the part raised line 23 retained on the optical cable of left side is embedded into In the groove 12 on unit inner sheath 11 that right side optical cable exposes, by two cable connections；Again by 2 sets of the total sheath of that section cut away Outside at two cable connections will be sealed in the inside at connecting.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (10)

1. a kind of house wiring optical fiber cable, it is characterised in that: including two fiber units (1) arranged in parallel and by two optical fiber Unit (1) is wrapped in interior total sheath (2), and the fiber unit (1) includes being set to its internal optical fiber (10) and outer layer Unit inner sheath (11), total sheath (2) include contact portion (21) and and the unit being fitted on unit inner sheath (11) The interconnecting piece (22) of inner sheath (11) separation, is provided on contact portion (21) inner wall and is arranged along total sheath (2) length direction Raised line (23), offer the groove opposite with raised line (23) position (12) on unit inner sheath (11) outer wall, it is described convex Item (23) is fastened in groove (12).

2. a kind of house wiring optical fiber cable according to claim 1, it is characterised in that: the raised line (23) is recessed including extending into Cutting (231) in slot (12) and the dowel (232) connecting with contact portion (21), the width of the dowel (232) are small Width in cutting (231).

3. a kind of house wiring optical fiber cable according to claim 2, it is characterised in that: on the two sides of the cutting (231) The card slot (233) being arranged along its length is offered, is provided on the two sidewalls of the groove (12) and is fastened on card slot (233) Interior strip (13).

4. a kind of house wiring optical fiber cable according to claim 1, it is characterised in that: the inside of the interconnecting piece (22) is arranged There is the fin (24) being arranged along its length, the fin (24) contradicts on two unit inner sheaths (11).

5. a kind of house wiring optical fiber cable according to claim 4, it is characterised in that: the fin (24) is and total sheath (2) structure integrally formed, section is triangular in shape.

6. a kind of house wiring optical fiber cable according to claim 1, it is characterised in that: the thickness of the contact portion (21) is greater than The thickness of interconnecting piece (22).

7. a kind of house wiring optical fiber cable according to claim 1, it is characterised in that: contact portion (21) outer surface is along total The axial direction of sheath (2) offers V-shaped cutting mouth (25).

8. a kind of house wiring optical fiber cable according to claim 1, it is characterised in that: the fiber unit (1) is single-mode optics Fine or multimode fibre, it is internal to be filled with aramid yarn material (14).

9. a kind of house wiring optical fiber cable according to claim 1, it is characterised in that: the unit inner sheath (11) is by gathering Cylindrical structure made of vinyl material.

10. a kind of house wiring optical fiber cable according to claim 1, it is characterised in that: total sheath (2) is by polychlorostyrene second Tubular construction made of alkene material.