CN205942025U - Optic fibre that can bear 100MPa pressure is worn wall and is put - Google Patents
Optic fibre that can bear 100MPa pressure is worn wall and is put Download PDFInfo
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- CN205942025U CN205942025U CN201620915882.9U CN201620915882U CN205942025U CN 205942025 U CN205942025 U CN 205942025U CN 201620915882 U CN201620915882 U CN 201620915882U CN 205942025 U CN205942025 U CN 205942025U
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Abstract
The utility model belongs to the technical field of underwater robot technology and specifically relates to an optic fibre that can bear 100MPa pressure is worn wall and is put. Include to wear wall spare body, the one end of wearing wall spare body is equipped with the external screw thread that is used for with withstand voltage bulkhead face threaded connection, and the other end is equipped with the shaft shoulder that is used for with the surface sealing connection of withstand voltage bulkhead face, be equipped with the through wires hole along the axial on wearing wall spare body, axle shoulder end and the thread end of wearing wall spare body are equipped with encapsulating groove I and the encapsulating groove II who communicates with the through wires hole respectively, and optic fibre passes the through wires hole and fixed through encapsulating epoxy in encapsulating groove I, through wires hole and encapsulating groove II. The utility model discloses utilize the shrinkage character of epoxy under pressure to seal to improve the bearing capacity for the epoxy provides the skeleton, guarantee the leakproofness in withstand voltage storehouse.
Description
Technical field
This utility model is related to underwater robot technical field, specifically a kind of optical fiber bearing 100MPa pressure
Wall-through device and preparation method thereof.
Background technology
Fibre Optical Communication Technology has become one of mainstay of modern communicationses, and fiber optic communication, can used as an emerging technology
For deep water and ground communication.Optical fiber has the advantages that bandwidth, low, lightweight, strong antijamming capability is lost, not only in the people
Receive user with market to pursue, and apply in fields such as military affairs, ocean scientific investigation, space probations more and more extensive.
Optical fiber is made up of inner core and covering, generally tens microns or several microns of inner core；Outer coversheet is referred to as covering, covering
Effect is exactly to protect optical fiber, and the polymer figure layer of optical fiber is generally epoxy acrylate or acrylate.Undercoating springform
Measure relatively low, about white MPa of level, material is soft, is used for avoiding optical fiber to receive mechanical damage.Outer figure layer elastic modelling quantity is higher, up to several
Ten thousand MPas, tree material is hard, be conducive to the pressurized characteristic of optical fiber and antiwear characteristic.
Existing fiber wall-through Sealing Technology generally adopts 0 circle crush seal, and most applicable situations are no pressure reduction nacelle wall-through,
For example civilian optical transmitter and receiver box and aerospace flight vehicle sealing cabin.In applying under water, domestic current employing optical fiber wall-through can
For the ARV of 1000 meters of depth of waters work, that is, inside and outside differential pressure is only 10MPa, and seals for single fiber wall-through.When latent device is at deep-sea
During work, need internal with the outside communication in pressure storehouse, key issue therein is exactly that optical fiber wall-through connects, and will ensure resistance to
The sealing in pressure storehouse.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide a kind of optical fiber wall-through dress bearing 100MPa pressure
Put and preparation method thereof.This device and preparation method thereof ensure that the sealing in pressure storehouse.
To achieve these goals, this utility model employs the following technical solutions：
A kind of optical fiber wall-through device bearing 100MPa pressure, including wall-through part body, the one of described wall-through part body
End is provided with the external screw thread for threadeding with pressure-resistant cabin wall, and the other end is provided with for the appearance face seal with pressure-resistant cabin wall
The shaft shoulder connecting, described wall-through part body is provided with through wires hole vertically, the shaft shoulder end of described wall-through part body and the end of thread divide
It is not provided with the glue-filling slot I connecting with through wires hole and glue-filling slot II, optical fiber passes through through wires hole and by glue-filling slot I, through wires hole
And encapsulating epoxy resin is fixed in glue-filling slot II.
In the bottom of described glue-filling slot I, the end edge of described through wires hole is provided with lip type structure raised vertically.
It is provided with cylindrical protrusions in the bottom of described glue-filling slot I, described cylindrical protrusions are provided with and threading vertically
The bellmouth of hole connection, the outer openings of described bellmouth are more than interior side opening, and the edge of outer openings is arc transition,
Form described lip type structure.
The inwall of described glue-filling slot II is provided with helical groove structure.The partial spiral that described optical fiber is located in described glue-filling slot II
Lay.
The part that described epoxy resin exposes to glue-filling slot I and glue-filling slot II is the conical surface.
Advantage of the present utility model and good effect are：
1. wall-through part of the present utility model uses lip type structure, is sealed using epoxy shrinkage characteristicss under stress,
And provide skeleton to improve bearing capacity for epoxy.
2. this utility model is rigid glue outside trickle optical cable, tight with embedding epoxy cement.
3. this utility model makes optical fiber slightly spiral to increase the bond area of optical fiber and epoxy in wall-through part.
4. inside this utility model wall-through part, improve the defoaming capacity of vacuumizing phase using helical groove structure.
5. this utility model wall-through part uses anodization surface, improves bonding force, and convenient batch production simultaneously can be by
Embedding restricted duration brings up to 30 days.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the generalized section of this utility model non-encapsulating before processing；
Fig. 3 is the structural representation of technical support mount in this utility model.
Wherein, 1 is optical fiber, and 2 is epoxy resin, and 3 is wall-through part body, and 301 is glue-filling slot I, and 302 is lip type structure, 303
For through wires hole, 304 is glue-filling slot II, and 305 is helical groove structure, and 4 is sealing ring, and 5 is pressure-resistant cabin wall, and 6 is technical support mount.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with the accompanying drawings and be embodied as
Example is described in detail to this utility model.
As shown in Figure 1 and Figure 2, a kind of optical fiber wall-through device bearing 100MPa pressure that this utility model provides, including
Wall-through part body 3, one end of described wall-through part body 3 is provided with the external screw thread for threadeding, the other end with pressure-resistant cabin wall 5
It is provided with the shaft shoulder being tightly connected for the outer surface with pressure-resistant cabin wall 5.It is provided with through wires hole vertically on described wall-through part body 3
303, the shaft shoulder end of described wall-through part body 3 is respectively equipped with the glue-filling slot I 301 connecting with through wires hole 303 and encapsulating with the end of thread
Groove II 304, optical fiber 1 passes through through wires hole 303 and by filling in glue-filling slot I 301, through wires hole 303 and glue-filling slot II 304
Glue epoxy resin 2 is fixing.
In the bottom of described glue-filling slot I 301, the end edge of described through wires hole 303 is provided with lip type knot raised vertically
Structure 302, using epoxy resin, shrinkage characteristicss under stress are sealed described lip type structure 302, and are epoxy
Skeleton is provided to improve bearing capacity.
Be provided with cylindrical protrusions in the bottom of described glue-filling slot I 301, described cylindrical protrusions are provided with vertically with
The bellmouth of through wires hole 303 connection, the outer openings of described bellmouth are more than interior side opening, and the edge of outer openings is circle
Arc transition, forms described lip type structure 302.The bellmouth of described lip type structure 302 facilitates optical fiber 1 to draw, and is unlikely to simultaneously
Optical fiber 1 is damaged by pressure in potting process.Described lip type structure 302 needs to ensure surface radian enough, with dispersive stress.
The inwall of described glue-filling slot II 304 is provided with helical groove structure 305, as shown in Figure 2.This helical groove structure 305 strengthens
The bonding force of epoxy resin and the defoaming capacity improving vacuumizing phase.Described optical fiber 1 is located in described glue-filling slot II 304
Partial spiral is laid, to increase the bond area of optical fiber and epoxy.
Described wall-through part body 3 uses anodization surface, improves bonding force, and convenient batch production simultaneously can be by embedding
Restricted duration brings up to 30 days.
The part that described epoxy resin 2 exposes to glue-filling slot I 301 and glue-filling slot II 304 is the conical surface.Pressurized in outside
Operating mode, the structure of glue-filling slot I 301 can make internal epoxy resin and glue-filling slot I 301 increasingly tightr, and tap web fillet
Stress concentration can be reduced.The feature of glue-filling slot II 304 is the helicla flute of inside, can increase the anti-shear ability of epoxy resin.
A kind of manufacture method of the optical fiber wall-through device bearing 100MPa pressure it is characterised in that the method include with
Under several steps：
1) processing wall-through part body 3 and two technical support mounts 6, one end of described wall-through part body 3 be provided with for pressure
The threaded external screw thread of bulkhead face 5, the other end is provided with the shaft shoulder being tightly connected for the outer surface with pressure-resistant cabin wall 5, institute
State and through wires hole 303 be provided with vertically on wall-through part body 3, the shaft shoulder end of described wall-through part body 3 and the end of thread be respectively equipped with
The glue-filling slot I 301 and glue-filling slot II 304 of through wires hole 303 connection, in the bottom of described glue-filling slot I 301, described through wires hole
303 end edge is provided with lip type structure 302 raised vertically；Lip type structure 302 needs to ensure surface radian enough, to divide
Scattered stress.Glue-filling slot II 304 inwall of described wall-through part body 3 end of thread is provided with helical groove structure 305.
Two technical support mounts are using ABS material 3D printing it is ensured that can assembling and can bearing the high temperature within 140 DEG C.?
The bottom of frame is provided with taper osculum, facilitates optical fiber to draw, is unlikely to damage by pressure optical fiber in potting process, as shown in Figure 3.Two works
Skill support (evacuation, cure stage) in embedding twice, it is ensured that device horizontal positioned, does not damage optical fiber by pressure.
2) anodized is carried out to described wall-through part body 3, enter bag after having processed in time and seal up for safekeeping it is ensured that bonding plane exists
Will not be contaminated before bonding.Need to complete embedding in after anodization 30 days.
3) optical fiber 1 of two or more than two to be processed surface by alcohol-pickled；In the present embodiment, Xi'an adopted by optical fiber
The trickle optical cable of 705 bend-insensitives being produced, intercepts length more than two sections of each 1m, falls surface glue and greasy dirt with napkin strip, permissible
With ethanol short time immersion treatment surface.
4) glass cement (diameter 2-3mm) bonding is passed through in one end end of the optical fiber 1 of two or more than two, tries one's best and justify in surface
Profit, after waiting glass adhesive curing, by the lip type structure of glue-filling slot I 301 bottom from wall-through part body 3 for the other end of each optical fiber 1
302 bellmouth insertion, the other end of each optical fiber 1 stretches out after glue-filling slot II 304 inside turn of described wall-through part body 3, leads to
The notch of glue-filling slot I 301 is sealed it is ensured that having in first time encapsulating evacuation by the glass cement crossing one end end of optical fiber 1
Excellent sealing.
Smear glass cement in each optical fiber 1 one end end, in order to the end face seal of glue-filling slot I 301 is lived, internal filling epoxy
During resin, glue-filling slot I 301 is bottom, and after sealed bottom is good, from glue-filling slot II, 304 mouthfuls pour into epoxy resin, and put into vacuum
Fill evacuation.
The reason using glass cement, has several as follows：1. flexible glue, solidification is convenient.Can be broken with tweezers when 2. directly taking out unsuccessfully
Bad property is peeled off.3. favorable sealing property.4. high temperature resistant, baking box can be entered together.5. without smearing release agent, in metal after stripping
Will not residual contaminants with epoxy-surface.
The other end of two or more than two optical fiber 1 is in the glue-filling slot II304 inside turn of described wall-through part body 3 whorl side
After stretch out.The test of welding optic fibre head HONGGUANG guarantees not fracture, and cuts welded joint and facilitates encapsulating.
5) buckle lower end technical support mount on the glue-filling slot II 304 of described wall-through part body 3, make the other end of each optical fiber 1
Drawn by the bellmouth that lower end technical support mount bottom is provided with, make each optical fiber 1 not contact internal walls with glue-filling slot II304, described
Encapsulating epoxy resin 2 in the glue-filling slot II 304 of wall-through part body 3.
Concretely comprise the following steps：60-80 DEG C first preheats and to the epoxy resin evacuation preparing.Encapsulating in the case of preheating,
To with the stopping of wall mouth about 1mm place, put into rapidly vacuum tank evacuation 3min.It is then fed into baking box to complete to solidify, after solidification
Wait natural cooling, cooling of can not opening the door rapidly.
6) carefully remove the glass cement of each optical fiber 1 one end end with tweezers, in the glue-filling slot I of described wall-through part body 3
Buckle upper end support on 301, and one end end of each optical fiber 1 is drawn by the bellmouth that upper end technical support mount bottom is provided with, make
One end of each optical fiber 1 is slightly spiraled in glue-filling slot I 301, is not contacted with the conical surface of lip type structure 302 and labial surface.
7) encapsulating epoxy resin 2 in the glue-filling slot I 301 at described wall-through part body 3 shaft shoulder end.
Concretely comprise the following steps：60-0 DEG C first preheats and to the epoxy resin evacuation preparing.Encapsulating in the case of preheating, arrives
The fast place's stopping that maintaining an equal level with wall mouth, puts into rapidly vacuum tank evacuation 3min.It is then fed into baking box to complete to solidify, after solidification etc.
Treat natural cooling, cooling of can not opening the door rapidly.
8) be two optical fiber 1 two ends increase welding optic fibre head, then carry out suppressing test.
In the present embodiment, the material of described wall-through part body 3 adopts 7075 aluminium alloys.
The screwed hole that the end of thread of described wall-through part body 3 is provided with pressure bulkhead face 5 is threadeded, and wall-through part is originally
The shaft shoulder end of body 3 is tightly connected by sealing ring 4 with the outer surface of pressure-resistant cabin wall 5.Wall-through structure in this utility model and
Epoxy records technique, can guarantee that and passes through two or more than two optical fiber inside same optical fiber wall-through part, and ensure that pressure
The sealing in storehouse.
The foregoing is only embodiment of the present utility model, be not intended to limit protection domain of the present utility model.All
Any modification, equivalent substitution and improvement made within spirit of the present utility model and principle, extension etc., are all contained in this reality
With in new protection domain.
Claims (6)
1. a kind of optical fiber wall-through device bearing 100MPa pressure, it is characterised in that including wall-through part body (3), described is worn
One end of wall pieces body (3) is provided with the external screw thread for threadeding with pressure-resistant cabin wall (5), the other end be provided with for pressure
The shaft shoulder that the outer surface of bulkhead face (5) is tightly connected, described wall-through part body (3) is provided with through wires hole (303) vertically, described
The shaft shoulder end of wall-through part body (3) is respectively equipped with the glue-filling slot I (301) connecting with through wires hole (303) and glue-filling slot with the end of thread
II (304), optical fiber (1) passes through through wires hole (303) and by glue-filling slot I (301), through wires hole (303) and glue-filling slot II
(304) interior encapsulating epoxy resin (2) is fixing.
2. the optical fiber wall-through device bearing 100MPa pressure according to claim 1 is it is characterised in that in described encapsulating
The bottom of groove I (301), the end edge of described through wires hole (303) is provided with lip type structure (302) raised vertically.
3. the optical fiber wall-through device bearing 100MPa pressure according to claim 2 is it is characterised in that in described encapsulating
The bottom of groove I (301) is provided with cylindrical protrusions, is provided with vertically and connects with through wires hole (303) in described cylindrical protrusions
Bellmouth, the outer openings of described bellmouth are more than interior side opening, and the edge of outer openings is arc transition, are formed described
Lip type structure (302).
4. the optical fiber wall-through device bearing 100MPa pressure according to claim 1 is it is characterised in that described glue-filling slot
The inwall of II (304) is provided with helical groove structure (305).
5. the optical fiber wall-through device bearing 100MPa pressure according to claim 4 is it is characterised in that described optical fiber
(1) partial spiral being located in described glue-filling slot II (304) is laid.
6. the optical fiber wall-through device bearing 100MPa pressure according to claim 1 is it is characterised in that described asphalt mixtures modified by epoxy resin
The part that fat (2) exposes to glue-filling slot I (301) and glue-filling slot II (304) is the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620915882.9U CN205942025U (en) | 2016-08-22 | 2016-08-22 | Optic fibre that can bear 100MPa pressure is worn wall and is put |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620915882.9U CN205942025U (en) | 2016-08-22 | 2016-08-22 | Optic fibre that can bear 100MPa pressure is worn wall and is put |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205942025U true CN205942025U (en) | 2017-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620915882.9U Active CN205942025U (en) | 2016-08-22 | 2016-08-22 | Optic fibre that can bear 100MPa pressure is worn wall and is put |
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| Country | Link |
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| CN (1) | CN205942025U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107765377A (en) * | 2016-08-22 | 2018-03-06 | 中国科学院沈阳自动化研究所 | A kind of optical fiber wall-through device for bearing 100MPa pressure and preparation method thereof |
| CN109066532A (en) * | 2018-08-08 | 2018-12-21 | 苏州华旃航天电器有限公司 | A kind of harness boundary surface seal structure cable assemblies and installation method |
-
2016
- 2016-08-22 CN CN201620915882.9U patent/CN205942025U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107765377A (en) * | 2016-08-22 | 2018-03-06 | 中国科学院沈阳自动化研究所 | A kind of optical fiber wall-through device for bearing 100MPa pressure and preparation method thereof |
| CN107765377B (en) * | 2016-08-22 | 2023-04-28 | 中国科学院沈阳自动化研究所 | Fiber wall penetrating device capable of bearing 100MPa pressure and manufacturing method thereof |
| CN109066532A (en) * | 2018-08-08 | 2018-12-21 | 苏州华旃航天电器有限公司 | A kind of harness boundary surface seal structure cable assemblies and installation method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |