CN207643643U - Dry type Loose tube is with exempting to adjust concentric blowning installation - Google Patents
Dry type Loose tube is with exempting to adjust concentric blowning installation Download PDFInfo
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- CN207643643U CN207643643U CN201721619431.1U CN201721619431U CN207643643U CN 207643643 U CN207643643 U CN 207643643U CN 201721619431 U CN201721619431 U CN 201721619431U CN 207643643 U CN207643643 U CN 207643643U
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- air flue
- exempting
- loose tube
- dry type
- needle holder
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Abstract
The utility model discloses a kind of dry type Loose tubes with exempting to adjust concentric blowning installation, including outer sleeve and it is contained in the inner sleeve of outer sleeve, outer sleeve includes sequentially connected rear pressing cover, air flue outer chamber, coordinate spreader and mold core, inner sleeve includes air flue needle holder and leads fine syringe needle, be provided in inner sleeve for for optical fiber by optical-fibre channel, gap between inner sleeve and outer sleeve, which is formed, is used for gas passage for gas to pass through, air inlet is provided on outer sleeve, the venthole of connection optical-fibre channel and gas passage is provided in air flue needle holder, the arrival end of inner sleeve is connect with outer sleeve with by one side seal of gas passage, the discharge ring of gas passage is arranged on the outside of inner sleeve outlet end.The utility model proposes dry type Loose tube with exempting to adjust concentric blowning installation, avoid optical fiber from being dispelled by air-flow viscous glutinous to Loose tube inner wall, to increase the stability of technique.
Description
Technical field
The utility model is related to optical fiber blowing device technical fields more particularly to a kind of dry type Loose tube to be blown with one heart with tune is exempted from
Device of air.
Background technology
Under the trend that optical cable industry develops to dry type without ointment filled fiber cable direction, the production of dry type Loose tube is to ensure
The key of absolutely dry optical cable quality.The material of current dry type Loose tube is mainly polyethylene, polypropylene or parylene
Butanediol ester, lays optical fiber in endoporus and the medium that blocks water, the medium that blocks water are generally water blocking yarn or water-proofing powder.Due to not filling out
The filling of ointment medium in Chinese pine casing, the ovality of Loose tube are difficult to ensure, will largely effect on subsequent technology stability.
Loose tube needs to support its inner wall to ensure ovality its make-up gas when squeezing out from extruder head.
Currently, relatively common blowning installation is to continue to use the injection needle device for filling out Chinese pine casing, by gas connection optical fiber
Loose tube, gas and Needle sharing channel are poured into together.The drawbacks of this design, is：1, gas is overflowed from the rear of head,
The stability of air-flow is difficult to ensure, to cause the fluctuation of Loose tube outer diameter；2, gas by optical fiber impact Loose tube inner wall with
Loose tube under molten condition, which occurs to glue, to be sticked, and is unfavorable for controlling the state of optical fiber and attenuation being caused to increase.3, the device needs frequency
Numerous progress concentricity adjustment, adjustment difficulty is big and expends time and labor.
Utility model content
The main purpose of the utility model is to provide a kind of dry type Loose tubes with exempting to adjust concentric blowning installation, it is intended to avoid
Optical fiber is dispelled viscous glutinous to improve the stability of technique to Loose tube inner wall by air-flow.
To achieve the above object, the utility model provides a kind of dry type Loose tube with exempting to adjust concentric blowning installation, including outer
Sleeve and the inner sleeve for being contained in outer sleeve, wherein
The outer sleeve includes that sequentially connected rear pressing cover, air flue outer chamber, cooperation spreader and mold core, inner sleeve include
Air flue needle holder and lead fine syringe needle, be provided in inner sleeve for for optical fiber by optical-fibre channel, inner sleeve and outer sleeve
Between gap formed and be used for gas passage for gas to pass through, be provided with air inlet on outer sleeve, be arranged in air flue needle holder
There are the venthole of connection optical-fibre channel and gas passage, the arrival end of inner sleeve to be connect with outer sleeve with gas passage side is close
The discharge ring of envelope, gas passage is arranged on the outside of inner sleeve outlet end.
Preferably, the inner sleeve further include be installed on air flue needle holder arrival end lead fiber module, lead fiber module and gas
Road needle holder is detachably connected.
Preferably, the air flue needle holder is screw-thread fit with fine syringe needle is led, and air flue needle holder is matched with rear pressing cover for screw thread
It closes.
Preferably, the rear pressing cover is bolted with air flue outer chamber, and air flue outer chamber passes through with cooperation spreader
Screw-thread fit.
Preferably, the arrival end of the air flue needle holder is that hex nut shape is either rectangular or other are with parallel folder
Hold the shape of opposite side.
Preferably, air inlet quick-release connector is installed on the air inlet.
Preferably, the venthole is provided with multiple on the length direction of air flue needle holder, and venthole is in air flue syringe needle
It is provided on the circumferencial direction of seat multiple.
Preferably, the axis of the venthole and the axis direction of optical-fibre channel in air flue needle holder are vertically arranged.
Preferably, the air flue outer chamber and spreader are coordinated in such a way that screw thread and mating surface combine.
Preferably, the mold core with cooperation spreader by cone match to ensure air-tightness.
The utility model proposes dry type Loose tube with exempting to adjust concentric blowning installation, gas is from leading between fine syringe needle and mold core
Channel flowing, solve traditional structure optical fiber and gas common air duct cause optical fiber to be dispelled to Loose tube inner wall is viscous glutinous to ask
Topic, to improve the stability of technique.In addition, this dry type Loose tube is concentric with exempting to adjust concentric blowning installation to be that integral type is exempted to adjust
Structure reduces in the time and labor adjusted with one heart.
Description of the drawings
Fig. 1 is the utility model dry type Loose tube structural schematic diagram for exempting to adjust concentric blowning installation.
In figure：1. lead fiber module, 2. air flue needle holders, 3. rear pressing covers, 4. air flue outer chambers, 5. air inlet quick-release connectors,
6. fine syringe needle, 8. mold cores are led in cooperation spreader, 7..
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific implementation mode
It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this
Utility model.
It should be noted that in the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, and is not instruction or dark
Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as pair
The limitation of the utility model.In addition, term " first ", " second " etc. are used for description purposes only, and it should not be understood as instruction or dark
Show relative importance.
Referring to Fig.1, in this preferred embodiment, a kind of dry type Loose tube with exempt to adjust concentric blowning installation, including outer sleeve with
And it is contained in the inner sleeve of outer sleeve, wherein
Outer sleeve includes that sequentially connected rear pressing cover 3, air flue outer chamber 4, cooperation spreader 6 and mold core 8, inner sleeve include
Air flue needle holder 2 and lead fine syringe needle 7, be provided in inner sleeve for for optical fiber by optical-fibre channel, inner sleeve and housing
Gap between cylinder, which is formed, is used for gas passage for gas to pass through, is provided with air inlet on outer sleeve, is set in air flue needle holder 2
It is equipped with the venthole of connection optical-fibre channel and gas passage, the arrival end of inner sleeve（Arrival end is left end shown in FIG. 1）With it is outer
Sleeve connection is with by one side seal of gas passage, the discharge ring of gas passage is around inner sleeve outlet end（Arrival end is shown in FIG. 1
Right end）Outside is arranged.
Specifically, the diameter for leading optical-fibre channel in fine syringe needle 7 is less than the diameter of 2 outlet end optical-fibre channel of air flue needle holder.
In the present embodiment, air flue needle holder 2 is screw-thread fit with fine syringe needle 7 is led, and air flue needle holder 2 is screw-thread fit with rear pressing cover 3.Afterwards
Gland 3 is bolted with air flue outer chamber 4, and air flue outer chamber 4 and cooperation spreader 6 are by screw-thread fit, to ensure
The concentricity and air-tightness of whole device.Air flue outer chamber 4 and spreader are matched in such a way that screw thread and mating surface combine
It closes.Mold core 8 is with cooperation spreader 6 by cone match to ensure air-tightness.Air inlet（Air inlet is threaded hole）On be equipped with
Air inlet quick-release connector 5.By the way that venthole is arranged in air flue needle holder 2, to play the guiding role to penetrating for optical fiber.
Further, inner sleeve further include be installed on 2 arrival end of air flue needle holder lead fiber module 1, lead fiber module 1 and gas
Road needle holder 2 is detachably connected.It is tiny cylindric to lead fiber module 1, and material is wolfram steel, hard alloy or ceramics etc., can root
The diameter of bore of fiber module 1 is led according to number of fibers adjustment.Lead fiber module 1 and 2 clearance fit of air flue needle holder.Lead fiber module 1
Design is very succinct, and processing is simple, saves material, and can be replaced according to product is very easy.
Further, the arrival end of air flue needle holder 2 is hex nut shape, and dismounting use is clamped to facilitate.Other
In variant embodiment, the arrival end of air flue needle holder 2 may also be configured to rectangular or other shapes with parallel clamping opposite side,
It is used to conveniently clamp dismounting.
Further, venthole is provided with multiple on the length direction of air flue needle holder 2, and venthole is in air flue needle holder
It is provided on 2 circumferencial direction multiple.The axis of venthole is vertical with the axis direction of optical-fibre channel in air flue needle holder 2 to be set
It sets.In a circumferential direction, venthole can be uniformly arranged two to four（I.e. multiple ventholes be respectively separated 90 °, 120 ° or
180 ° of direction settings）.A diameter of 2mm ~ 6mm of venthole.Venthole is equal in the length direction and circumferencial direction of air flue needle holder 2
Even arrangement, to facilitate uniform gas flow.
This dry type Loose tube is with exempting to adjust the application method of concentric blowning installation as follows.
First, by according to by number of fibers select suitable endoporus lead 1 clearance fit of fiber module to air flue needle holder 2
On, rear pressing cover 3 is bolted on air flue outer chamber 4, air flue needle holder 2 is matched together with fiber module 1 is led by screw thread
It closes on rear pressing cover 3 and air flue outer chamber 4.Then, fine syringe needle 7 will be led, 2 end of air flue needle holder is mounted on by screw-thread fit.
To be threaded with the cooperation spreader 6 of seam allowance be mounted on head on, by air flue outer chamber 4 together with air flue needle holder 2, lead fine needle
The first 7 equal Screw assemblies that pass through are on cooperation spreader 6.By air inlet quick-release connector 5 by being threadably mounted on air flue outer chamber 4.
The confined space that air flue outer chamber 4, air flue needle holder 2, cooperation spreader 6, mold core 8 are formed can prevent air-flow excessive, ensure
The pressure of gas is constant and steady air current.
The dry type Loose tube that the present embodiment proposes is with exempting to adjust concentric blowning installation, and gas is from leading between fine syringe needle 7 and mold core 8
Channel flowing, solve traditional structure optical fiber and gas common air duct cause optical fiber to be dispelled to Loose tube inner wall is viscous glutinous to ask
Topic, to improve the stability of technique.In addition, this dry type Loose tube is concentric with exempting to adjust concentric blowning installation to be that integral type is exempted to adjust
Structure reduces in the time and labor adjusted with one heart.
It these are only the preferred embodiment of the utility model, it does not limit the scope of the patent of the present invention, every
Equivalent structure transformation made based on the specification and figures of the utility model, it is relevant to be applied directly or indirectly in other
Technical field is equally included in the patent within the scope of the utility model.
Claims (10)
1. a kind of dry type Loose tube is with exempting to adjust concentric blowning installation, which is characterized in that including outer sleeve and be contained in outer sleeve
Inner sleeve, wherein
The outer sleeve includes that sequentially connected rear pressing cover, air flue outer chamber, cooperation spreader and mold core, inner sleeve include air flue
Needle holder and lead fine syringe needle, be provided in inner sleeve for for optical fiber by optical-fibre channel, between inner sleeve and outer sleeve
Gap formed and be used for gas passage for gas to pass through, be provided with air inlet on outer sleeve, the company of being provided in air flue needle holder
The venthole of logical optical-fibre channel and gas passage, the arrival end of inner sleeve are connect with outer sleeve with by one side seal of gas passage,
The discharge ring of gas passage is arranged on the outside of inner sleeve outlet end.
2. dry type Loose tube as described in claim 1 is with exempting to adjust concentric blowning installation, which is characterized in that the inner sleeve also wraps
Include be installed on air flue needle holder arrival end lead fiber module, lead fiber module and be detachably connected with air flue needle holder.
3. dry type Loose tube as claimed in claim 2 is with exempting to adjust concentric blowning installation, which is characterized in that the air flue needle holder
It is screw-thread fit with fine syringe needle is led, air flue needle holder is screw-thread fit with rear pressing cover.
4. dry type Loose tube as described in claim 1 is with exempting to adjust concentric blowning installation, which is characterized in that the rear pressing cover and gas
Road outer chamber is bolted, and air flue outer chamber passes through screw-thread fit with cooperation spreader.
5. dry type Loose tube as described in claim 1 is with exempting to adjust concentric blowning installation, which is characterized in that the air flue needle holder
Arrival end be with it is parallel clamping opposite side shape.
6. dry type Loose tube as described in claim 1 is with exempting to adjust concentric blowning installation, which is characterized in that pacify on the air inlet
Equipped with air inlet quick-release connector.
7. dry type Loose tube as described in claim 1 is with exempting to adjust concentric blowning installation, which is characterized in that the venthole is in gas
It is provided with multiple on the length direction of road needle holder, venthole is provided with multiple on the circumferencial direction of air flue needle holder.
8. dry type Loose tube as described in claim 1 is with exempting to adjust concentric blowning installation, which is characterized in that the axis of the venthole
Line and the axis direction of optical-fibre channel in air flue needle holder are vertically arranged.
9. dry type Loose tube as described in claim 1 is with exempting to adjust concentric blowning installation, which is characterized in that the air flue outer chamber
Coordinated in such a way that screw thread and mating surface combine with spreader.
10. dry type Loose tube as in one of claimed in any of claims 1 to 9 is with exempting to adjust concentric blowning installation, which is characterized in that
The mold core is with cooperation spreader by cone match to ensure air-tightness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721619431.1U CN207643643U (en) | 2017-11-24 | 2017-11-24 | Dry type Loose tube is with exempting to adjust concentric blowning installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721619431.1U CN207643643U (en) | 2017-11-24 | 2017-11-24 | Dry type Loose tube is with exempting to adjust concentric blowning installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207643643U true CN207643643U (en) | 2018-07-24 |
Family
ID=62881816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721619431.1U Active CN207643643U (en) | 2017-11-24 | 2017-11-24 | Dry type Loose tube is with exempting to adjust concentric blowning installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207643643U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188630A (en) * | 2018-09-26 | 2019-01-11 | 杭州富通通信技术股份有限公司 | Dry type Loose tube and its manufacturing method and manufacturing equipment |
| CN109291390A (en) * | 2018-11-02 | 2019-02-01 | 江苏康宏金属软管有限公司 | Haemostatic clamp, biopsy forceps, the spring hose inner tube preparation of foreign body forceps and take-up |
-
2017
- 2017-11-24 CN CN201721619431.1U patent/CN207643643U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188630A (en) * | 2018-09-26 | 2019-01-11 | 杭州富通通信技术股份有限公司 | Dry type Loose tube and its manufacturing method and manufacturing equipment |
| CN109291390A (en) * | 2018-11-02 | 2019-02-01 | 江苏康宏金属软管有限公司 | Haemostatic clamp, biopsy forceps, the spring hose inner tube preparation of foreign body forceps and take-up |
| CN109291390B (en) * | 2018-11-02 | 2023-11-03 | 江苏康宏医疗科技有限公司 | Preparation of spring hose inner tube and take-up device of hemostatic forceps, biopsy forceps and foreign body forceps |
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