CN110806616B - Optical cable connecting device - Google Patents
Optical cable connecting device Download PDFInfo
- Publication number
- CN110806616B CN110806616B CN201911100815.6A CN201911100815A CN110806616B CN 110806616 B CN110806616 B CN 110806616B CN 201911100815 A CN201911100815 A CN 201911100815A CN 110806616 B CN110806616 B CN 110806616B
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- hole
- optical
- accommodating part
- fiber accommodating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2558—Reinforcement of splice joint
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The application discloses an optical cable connecting device, which comprises a main body structure and sealing structures arranged at two ends of the main body structure; the main structure comprises an optical fiber accommodating part and a protective sleeve, wherein two ends of the optical fiber accommodating part are respectively provided with a first through hole, and the outside of the optical fiber accommodating part is provided with a welding point; the optical fibers of the two optical cables respectively penetrate through the sealing structures and the first through holes at the two ends of the main body structure, and are respectively wound on the optical fiber accommodating parts upwards and downwards after being welded at the welding points; the protective sleeve is sleeved outside the optical fiber accommodating part after the optical fiber is wound. The winding of redundant optic fibre is realized through the piece is acceptd to optic fibre to this scheme, and the risk that there is the rupture in this kind of optical cable connection and fixed mode can avoid optic fibre, and the device has better sealed protecting effect, makes optic fibre not receive adverse circumstances's in the pit influence, and on-the-spot convenient operation.
Description
Technical Field
The application relates to the technical field of optical cables, in particular to an optical cable connecting device.
Background
The optical fiber sensor is increasingly applied to detection of temperature, pressure, vibration and the like of an oil well because of the advantages of small volume, easy installation, high temperature and high pressure resistance, strong anti-interference capability, corrosion resistance and the like. Optical fiber sensor need be connected through optical cable and equipment on the land when going into the well, and optical cable connection generally uses the heat sealing machine to weld optic fibre, because the environment is comparatively abominable in the pit, for example high temperature, high pressure, vibration and corrosive fluid etc. lead to optic fibre especially splice point department impaired easily, consequently need be when realizing optical cable connection, provide the protection for the optical cable junction.
The existing optical cable connecting device is only provided with a sealing layer outside an optical fiber connecting position, for example, the optical cable connecting device adopts the forms of metal tube sealing, glue injection sealing and the like, however, although the mode can avoid the direct exposure of the optical fiber to the underground environment, the sealing protection effect is limited, the optical fiber has the risk of being pulled and broken, and the actual operation on site is complex, so that the optical cable connecting efficiency is low.
Disclosure of Invention
In order to solve the technical problem, the application provides an optical cable connecting device.
In a first aspect, the present application provides an optical cable connection device, including a main structure and sealing structures disposed at two ends of the main structure; the main structure comprises an optical fiber accommodating part and a protective sleeve, wherein two ends of the optical fiber accommodating part are respectively provided with a first through hole, and the outside of the optical fiber accommodating part is provided with a welding point;
the optical fibers of the two optical cables respectively penetrate through the sealing structures and the first through holes at the two ends of the main body structure, and are respectively wound on the optical fiber accommodating parts upwards and downwards after being welded at the welding points; the protective sleeve is sleeved outside the optical fiber accommodating part after the optical fiber is wound.
Optionally, the sealing structure includes an outer sealing head, a second through hole is provided in the outer sealing head, and the outer sealing head is inserted into one end of the main body structure and connected with the protective sleeve.
Optionally, two ends of the optical fiber accommodating part are of an opening structure, the sealing structure further comprises an inner sealing head, a threaded pressing part and a pressing nail, a conical pressing part and an inner threaded hole are arranged in the inner sealing head, and an external thread is arranged outside the pressing nail; the pressing nail is screwed into the internal thread hole of the internal sealing head and is abutted against the extrusion piece; the inner sealing head penetrates through a through hole reserved in the threaded pressing piece, and the threaded pressing piece is in threaded connection with one end of the optical fiber accommodating piece, so that the inner sealing head is pressed between the threaded pressing piece and the optical fiber accommodating piece; the length of the protective sleeve is greater than the length of the optical fiber receiving member.
Optionally, the sealing structure further comprises an outer nut pressing piece and a clamping sleeve, a first protruding portion is arranged at the top of the outer sealing head, a first tapered hole is formed in the first protruding portion, the first tapered hole is communicated with the second through hole, an external thread is arranged outside the first protruding portion, and when the outer nut pressing piece is in threaded connection with the first protruding portion, the clamping sleeve is pressed in the first tapered hole by the outer nut pressing piece.
Optionally, a third through hole is formed in the inner sealing head, a fourth through hole is formed in the extrusion piece, a fifth through hole is formed in the pressing nail, a sixth through hole is formed in the cutting sleeve, and a seventh through hole is formed in the outer nut pressing piece.
Optionally, two ends of the optical fiber accommodating member are provided with clamping positions and internal threads at an opening above the clamping positions, the inner sealing head is provided with a boss matched with the clamping positions, and the threaded pressing member is further provided with external threads; the optical fiber accommodating part is in threaded connection with the threaded pressing part, and the boss is clamped inside the clamping part.
Optionally, the outer sealing head includes big tip and tip, and the excircle diameter of big tip is greater than the excircle diameter of tip, and the tip is connected with the bottom of big tip, and the top and the first bellying of big tip are connected, the outside of tip is equipped with external screw thread and sealed slot, the protective sleeve both ends are equipped with the internal thread, tip and protective sleeve threaded connection, and the big tip crimping is on protective sleeve's terminal surface.
Optionally, the optical fiber accommodating member is of a cylindrical structure, both ends of the optical fiber accommodating member are further provided with wire grooves communicated with the first through holes, and the inside of the optical fiber accommodating member is of a solid structure or a hollow structure; and the optical fibers of the two optical cables respectively penetrate through the sealing structures at the two ends of the main body structure, the first through hole and the wire guide groove, and are respectively wound on the outer wall of the cylindrical structure upwards and downwards after being welded at the welding point.
Optionally, the outer circle diameter of the middle part of the optical fiber accommodating part is smaller than the outer circle diameters of the two ends, and the outer circle diameters of the two ends of the optical fiber accommodating part are equal to the inner circle diameter of the protective sleeve.
Optionally, two ends of the optical fiber accommodating member are cylindrical structures, the middle of the optical fiber accommodating member is a plate-shaped structure, the first through hole is located on the cylindrical structures, a welding table is arranged in the center of the plate-shaped structure, and the welding point is located on the welding table; winding platforms are respectively arranged on the upper side and the lower side of the welding platform on the plate-shaped structure, optical fibers of two optical cables respectively penetrate through the sealing structures and the first through holes at the two ends of the main structure, and are respectively wound on the two winding platforms after the welding points are welded.
In a second aspect, the application provides another optical cable connection device, which comprises an optical fiber accommodating part and a protection sleeve, wherein an outer nut pressing part and a conical pressing part are arranged at two ends of the optical fiber accommodating part, the optical fiber accommodating part is of a solid cylindrical structure, a first through hole and a wire guide groove are respectively arranged at two ends of the optical fiber accommodating part, the first through hole is communicated with the wire guide groove, and a welding point is arranged outside the optical fiber accommodating part; the diameter of the outer circle of the middle part of the optical fiber accommodating part is smaller than the diameters of the outer circles of the two ends of the optical fiber accommodating part, and the diameters of the outer circles of the two ends of the optical fiber accommodating part are equal to the diameter of the inner circle of the protective sleeve; two ends of the optical fiber accommodating part are connected with second protruding parts, and second conical holes are formed in the second protruding parts; the second bulge is in threaded connection with the outer nut pressing piece and presses the pressing piece in the second taper hole; sequentially penetrates through the through hole of the outer nut casting die, the through hole of the extrusion piece, the first through hole and the wire guide groove, and is respectively wound on the outer wall of the optical fiber accommodating piece upwards and downwards after being welded at the welding point; the protective sleeve is sleeved outside the optical fiber accommodating part after the optical fiber is wound.
The third aspect of the invention provides another optical cable connecting device, which comprises an optical fiber accommodating part and a protective sleeve, wherein outer nut pressing parts and a conical pressing part are arranged at two ends of the optical fiber accommodating part, two ends of the optical fiber accommodating part are of cylindrical structures, the middle of the optical fiber accommodating part is of a plate-shaped structure, a first through hole is formed in the cylindrical structure, a welding table is arranged in the center of the plate-shaped structure, a welding point is arranged on the welding table, winding tables are respectively arranged on the upper side and the lower side of the welding table on the plate-shaped structure, and the diameter of the outer circle at two ends of the optical fiber accommodating part is equal to the diameter; two ends of the optical fiber accommodating part are connected with second protruding parts, and second conical holes are formed in the second protruding parts; the second bulge is in threaded connection with the outer nut pressing piece and presses the pressing piece in the second taper hole; the optical fibers of the two optical cables sequentially penetrate through the through hole of the outer nut casting die, the through hole of the extrusion piece and the first through hole, and are respectively wound on the two winding tables after being welded at the welding point; the protective sleeve is sleeved outside the optical fiber accommodating part after the optical fiber is wound.
The beneficial effect that this application possesses as follows: the optical cable connection structure comprises a main structure and sealing structures arranged at two ends of the main structure, when the optical cables are connected, armor with a certain length is removed from the two optical cables, optical fibers are exposed, the sealing structures are used for sealing and fixing the cables, then the optical fibers of the two optical cables penetrate through the sealing structures and the first through holes at the two ends respectively, fusion welding is carried out at fusion welding points on the outside of an optical fiber accommodating part, one ends of the two optical fibers are connected, one optical fiber is wound upwards on the optical fiber accommodating part, the other optical cable is also wound downwards in the same mode, the wound optical fiber is bonded and fixed on the optical fiber accommodating part, a protective sleeve is sleeved outside the optical fiber accommodating part, the optical fibers are sealed and protected, the sealing structures are arranged at two ends of the main structure respectively, and then the optical cable connection is completed. The winding of redundant optic fibre is realized through the piece is acceptd to optic fibre to this scheme, and the risk that there is the rupture in this kind of optical cable connection and fixed mode can avoid optic fibre, and the device has better sealed protecting effect, makes optic fibre not receive adverse circumstances's in the pit influence, and on-the-spot convenient operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view illustrating an internal structure of an optical cable connecting device according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of an optical fiber receiving member according to an embodiment of the present disclosure;
FIG. 3 is an enlarged view of a seal structure shown in an embodiment of the present application;
FIG. 4 is a schematic view of the internal structure of a cable connecting device according to the second embodiment of the present application;
FIG. 5 is a schematic view of an overall external structure of a cable connecting device according to the second embodiment of the present application;
fig. 6 is a schematic view of an internal structure of an optical cable connection device according to a third embodiment of the present application.
In the figure, 101-the optical fibre receptacle, 102-the protective sleeve, 103-the first perforation, 104-the conductor groove, 105-the fusion splice, 106-the detent, 107-the second protrusion, 108-the second taper hole, 109-the fusion splice, 110-the winding splice;
201-outer sealing head, 202-second through hole, 203-inner sealing head, 204-screw pressing piece, 205-pressing nail, 206-pressing piece, 207-outer nut pressing piece, 208-cutting sleeve, 209-first bulge, 210-first taper hole, 211-third through hole, 212-fourth through hole, 213-fifth through hole, 214-sixth through hole, 215-seventh through hole, 216-boss, 217-big end, 218-small end and 219-sealing groove;
301-fiber optic cable, 302-fiber.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a first embodiment of the present application provides an optical cable connection device, which includes a main structure and sealing structures disposed at two ends of the main structure; the main structure comprises an optical fiber accommodating part 101 and a protective sleeve 102, wherein two ends of the optical fiber accommodating part 101 are respectively provided with a first through hole 103, and the outside of the optical fiber accommodating part 101 is provided with a fusion point 105. The fusion point 105 is a point where two optical fibers are fused, and the position of the fusion point 105 on the outer wall of the optical fiber container 101 is not limited, and may be set at an intermediate position on the outer wall of the optical fiber container 101, for example, and may be selected by a person skilled in the art according to actual application.
In one possible implementation manner of the present application, referring to fig. 1, a hollow cylindrical structure is provided inside the protection sleeve 102, the fiber grating receptacle 101 is a cylindrical structure, which may be a hollow structure (refer to fig. 1) or a solid structure (refer to fig. 4), and both ends of the fiber grating receptacle 101 are further provided with wire grooves 104 communicating with the first through holes 103. Especially, when the inside of the optical fiber receiving part 101 is of a solid structure, the problem of wall thickness and the processing of a middle through hole are not involved, so that the diameter size of the optical fiber receiving part 101 can be reduced, the outer diameter of the outer protective sleeve 102 is reduced together, the whole outer size and the volume of the optical cable connecting device can be reduced, the manufacturing cost is reduced, and the underground installation and use are facilitated.
In the optional scheme of this embodiment, the excircle diameter of optic fibre receiving part 101 middle part is less than the excircle diameter at both ends, the excircle diameter at optic fibre receiving part 101 both ends equals protective sleeve 102's interior circle diameter, because this application adopts the mode of twining optic fibre in optic fibre receiving part 101, there is certain clearance in the middle part of optic fibre receiving part 101 and protective sleeve 102, can provide certain accommodation space for winding optic fibre, can also avoid optic fibre direct and protective sleeve 102 in close contact with, avoid external force vibration to pass through protective sleeve 102 and directly act on optic fibre, thereby improve the protective capacities to optic fibre, avoid optical fibre impaired in the use.
When two optical cables 301 are connected, a cutter knife is used for removing armoring with a certain length from the two optical cables 301, so that optical fibers 302 are exposed, the sealing structure is used for sealing and fixing the cables 301, then the optical fibers 302 of the two optical cables 301 respectively pass through the sealing structures and the first through holes at the two ends and are led out from the wire guide groove 104, then the two optical fibers 302 are welded at a welding point 105 on the outer part of the optical fiber accommodating part 101, one end of the two optical fibers 302 is connected, one optical fiber 302 is wound upwards on the outer wall of the upper cylindrical part of the optical fiber accommodating part 101, the other optical fiber 302 is wound downwards on the outer wall of the lower cylindrical part of the optical fiber accommodating part 101, the two wound optical fibers can be bonded and fixed by using a high-temperature adhesive tape, then a protective sleeve 102 is sleeved on the outer part of the optical fiber accommodating part 101 for sealing and protecting the optical fibers 302, and then the sealing, the cable connection is completed. The winding of redundant optic fibre 302 is realized through optic fibre receiving part 101 to this scheme, and this kind of optical cable connection and fixed mode can avoid optic fibre to have the risk of rupture, and the device has better sealed protecting effect, makes optic fibre not receive the influence of adverse circumstances in the pit, and on-the-spot convenient operation, the installation effectiveness is high.
In another possible implementation manner of the present application, as shown in fig. 2, another structure of the optical fiber receiving part 101 is further provided, two ends of the optical fiber receiving part 101 are of a cylindrical structure a, the middle part is of a plate-like structure B, and the diameters of the outer circles of the two ends of the optical fiber receiving part 101 are equal to the diameter of the inner circle of the protection sleeve 102; the first through hole 103 is positioned on the cylindrical structure A at two ends, the welding table 109 is arranged at the center of the plate-shaped structure B, and the welding point 105 is positioned on the welding table 109; and winding tables 110 are respectively arranged on the upper side and the lower side of the welding table 109 on the plate-shaped structure B. When the two optical fibers 302 are welded at the welding point 105, the two optical fibers 302 are wound in different fiber winding manners compared with the previous optical fiber receiving member 101, in this implementation manner, the two optical fibers 302 are not wound on the outer wall of the cylinder, but are wound on the two winding stations 110 upward and downward respectively. Wherein, the winding table 110 may be provided with a groove C, and the optical fiber 302 may be wound on the groove C, so as to enclose the wound optical fiber in the groove and prevent the optical fiber 302 from moving and loosening.
It should be noted that, a person skilled in the art can flexibly select the winding and fixing manner of the optical fiber 302 on the optical fiber receiving member 101, and is not limited to the several implementation manners illustrated in this embodiment, so that the structure of the optical fiber receiving member 101 can be adaptively set according to the winding manner, and the structure of the optical fiber receiving member 101 is not limited in the present application.
In order to improve the sealing performance of the optical cable connection device and achieve stable connection of optical cables, a specific example of the sealing structure will be given below in this embodiment. The sealing structures at the two ends of the main structure are uniform and vertically symmetrical structures, and the embodiment takes the sealing structure at the upper end shown in fig. 1 as an example for explanation.
As shown in fig. 3, the sealing structure includes an outer sealing head 201, the outer sealing head 201 is an outermost layer of the two ends of the main structure, the outer sealing head 201 is respectively plugged into the two ends of the main structure and then connected to the protection sleeve 102, for example, it may be in a threaded connection mode, and a second through hole 202 is provided in the outer sealing head 201, so that the optical fiber 302 can pass through the sealing structure. The optical fiber 302 passes through the second through hole 202 and the first through hole 103 in sequence, and then a subsequent fusion splice can be performed, which is designed as a single sealing structure.
Furthermore, the two ends of the optical fiber accommodating part 101 are of an opening structure, the sealing structure further comprises an inner sealing head 203, a threaded pressing part 204 and a pressing nail 205, a conical pressing part 206 and an inner threaded hole are arranged in the inner sealing head 203, a through hole is reserved in the threaded pressing part 204, and an external thread is arranged outside the pressing nail 205; the two ends of the optical fiber accommodating part 101 are provided with a clamp position 106 and an internal thread at an opening above the clamp position 106, the inner sealing head 203 is provided with a boss 216 matched with the clamp position 106, and the thread pressing part 204 is also provided with an external thread. The outer diameter of the upper portion of the threaded pressing member 204 may be larger than that of the lower portion of the threaded pressing member, and the outer thread of the threaded pressing member 204 is disposed on the lower portion of the threaded pressing member having a smaller outer diameter.
During installation, the inner sealing head 203 penetrates through a through hole reserved in the threaded pressing piece 204, and the threaded pressing piece 204 is in threaded connection with one end of the optical fiber accommodating piece 101, so that the inner sealing head 203 is pressed between the threaded pressing piece 204 and the optical fiber accommodating piece 101; the pressing nail 205 penetrates through the threaded pressing piece 204, the pressing nail 205 is screwed into the internal threaded hole of the internal sealing head 203 through the matching between the external thread of the pressing nail 205 and the internal threaded hole of the internal sealing head 203, and is abutted against the extrusion piece 206 to form the screwed internal sealing assembly, the internal sealing head 203 is arranged at the bottommost part of the internal sealing assembly, and the threaded pressing piece 204 and the pressing nail 205 are arranged above the internal sealing assembly. Through the cooperation between the external screw thread of screw thread casting die 204 and the internal screw thread at the opening of optic fibre appearance 101, hold the piece 101 threaded connection with screw thread casting die 204 to make the boss 216 card of interior sealing head 203 in the inside of screens 106, realize the location of interior sealing head 203, thereby fix interior seal assembly in the opening of optic fibre appearance 101. Under the structure, the length of the protective sleeve 102 is greater than that of the optical fiber accommodating part 101, the outer sealing head 201 is positioned above the inner sealing assembly, and the protective sleeve 102 is in threaded connection with the outer sealing head 201, so that a double-layer sealing structure is realized through the inner sealing head and the outer sealing head, and the sealing effect of the device is improved. Meanwhile, the use of the threaded pressing piece 204, the pressing nail 205 and the pressing piece 206 realizes the fastening connection of the inner sealing structure of the device and the fixation of the optical cable armor.
Further, the sealing structure further comprises an outer nut pressing part 207 and a clamping sleeve 208, a first boss 209 is arranged at the top of the outer sealing head 201, a first tapered hole 210 is arranged in the first boss 209, the first tapered hole 210 is communicated with the second through hole 202, an external thread is arranged outside the first boss 209, the outer surface of the outer nut pressing part 207 is of a hexagonal structure, and an internal thread hole is arranged in the middle of the outer nut pressing part. When the outer sealing head 201 is pressed above the pressing nail 205, and the outer sealing head 201 is connected with the protective sleeve 102, the sleeve 208 is placed into the first tapered hole 210, the outer nut pressing piece 207 is in threaded connection with the first boss 209 through the matching between the internal threaded hole of the outer nut pressing piece 207 and the external thread of the first boss 209, and the sleeve 208 is pressed in the first tapered hole 210 by the outer nut pressing piece 207, so that the fastening connection of the outer sealing structure of the device and the fixation of the optical cable armor are realized.
In an alternative of this embodiment, the outer sealing head 201 may include a large end portion 217 and a small end portion 218, an outer diameter of the large end portion 217 is larger than an outer diameter of the small end portion 218, the small end portion 218 is connected to a bottom of the large end portion 217, a top of the large end portion 217 is connected to the first protrusion 209, an outer portion of the small end portion 218 is provided with an external thread and a sealing groove 219, two ends of the protection sleeve 102 are provided with an internal thread, the small end portion 218 is in threaded connection with the protection sleeve 102 through cooperation between the external thread of the small end portion 218 and the internal thread of the protection sleeve 102, and the large end portion 217 is crimped on an end face of the protection sleeve. The small end portion 218 is provided with a sealing groove 219 with a certain depth, and a sealing ring can be arranged in the sealing groove 219, so that the sealing effect of the outer sealing head 201 is improved.
In order to enable the optical fiber 302 to pass through the sealing structure and enter the optical fiber container 101 for optical fiber fusion splicing and winding, correspondingly, a third through hole 211 is arranged in the inner sealing head 203, a fourth through hole 212 is arranged in the extrusion piece 206, a fifth through hole 213 is arranged in the pressing nail 205, a sixth through hole 214 is arranged in the ferrule 208, a seventh through hole 215 is arranged on the outer nut pressing piece 207, the optical fiber 302 sequentially passes through the seventh through hole 215, the sixth through hole 214, the second through hole 202, the fifth through hole 213, the fourth through hole 212, the third through hole 211 and the first through hole 103, and for the optical fiber container 101 in fig. 1, the optical fiber container 101 needs to pass through the wire guiding groove 104 again to prepare for fusion splicing; in the optical fiber housing 101 shown in fig. 2, the optical fiber 302 is drawn out from the first through hole 103, and then fusion splicing can be performed.
The application provides major structure and seal structure, can realize the fixed of fiber optic cable, make it can not be in the device drunkenness or beat and turn round, can avoid the splice point department to break off, realize the effective connection of optical cable to have high sealing performance, can avoid adverse circumstances such as high temperature in the pit, high pressure and oil gas to the influence of optical cable, guarantee test data's accuracy in the pit, and have advantages such as size is small, the quality is light, simple to operate. In practical application, the sealing structure of the double-layer sealing head can be adopted; alternatively, the inner seal head 203 and the crimp 204 are eliminated and other components are adaptively combined to form a single seal structure.
As shown in fig. 4 (for the convenience of showing the internal structure of the device, the external protection sleeve is omitted in fig. 4) and fig. 5, the second embodiment further provides an optical cable connection device, which includes an optical fiber receiving member 101 and a protection sleeve 102, wherein both ends of the optical fiber receiving member 101 are provided with an external nut pressing member 207 and a tapered pressing member 206, the optical fiber receiving member 101 is of a cylindrical structure with a solid interior, both ends of the optical fiber receiving member 101 are respectively provided with a first through hole 103 and a wire guiding groove 104, the first through hole 103 is communicated with the wire guiding groove 104, and the exterior of the optical fiber receiving member 101 is provided with a fusion-splicing point 105; the diameter of the outer circle of the middle part of the optical fiber accommodating part 101 is smaller than the diameter of the outer circles of the two ends, and the diameter of the outer circles of the two ends of the optical fiber accommodating part 101 is equal to the diameter of the inner circle of the protective sleeve 102; two ends of the optical fiber accommodating part 101 are connected with second protruding parts 107, and second tapered holes 108 are arranged on the second protruding parts 107; the second boss 107 is screwed with the external nut presser 207 and presses the presser 206 in the second tapered hole 108.
Two optical fibers 302 sequentially pass through a through hole reserved in the outer nut pressing part 207, a through hole reserved in the pressing part 206, the first through hole 103 and the wire guide groove 104, the two optical fibers 302 are respectively wound on the outer wall of the cylinder of the optical fiber accommodating part 101 upwards and downwards after being welded at the welding point 105, then the wound optical fibers are bonded and fixed, the protection sleeve 102 is sleeved outside the optical fiber accommodating part 101 after the optical fibers are wound, and the protection sleeve 102 and the two ends of the optical fiber accommodating part 101 can be in threaded connection.
The optical fiber accommodating part 101 is of a structure with thick two ends and thin middle, a certain gap exists between the middle part of the optical fiber accommodating part 101 and the protective sleeve 102, a certain accommodating space can be provided for wound optical fibers, the accommodating space is closed space by matching with the protective sleeve 102, the sealing effect of the device is ensured, the optical fibers can be prevented from being directly in close contact with the protective sleeve 102, external force vibration is prevented from being directly applied to the optical fibers through the protective sleeve 102, the protection capability of the optical fibers is improved, and the optical fibers are prevented from being damaged in the using process. In this embodiment, the optical fiber receiving member 101 is a solid cylinder structure, and does not involve the problem of wall thickness and the machining of a middle through hole, so that the diameter of the optical fiber receiving member 101 can be reduced, the outer diameter of the protection sleeve 102 is reduced, the volume of the whole device is smaller, the structure is simpler, the number of related parts is less, the installation and operation efficiency is higher, the fixation of the optical cable is realized by the extrusion member 206 and the outer nut extrusion member 207, and the connecting device is more stable.
As shown in fig. 2 and 6 (the outer protective sleeve 102 is omitted in fig. 6 for the convenience of showing the internal structure of the device), the third embodiment also provides an optical cable connecting device, which is different from the second embodiment in the way of winding the optical fibers due to the difference in the structure of the optical fiber receiving member 101.
Specifically, the apparatus of the third embodiment includes an optical fiber receiving member 101 and a protective sleeve 102, wherein the two ends of the optical fiber receiving member 101 are provided with external nut pressing parts 207 and a conical pressing part 206, the two ends of the optical fiber receiving member 101 are in a cylindrical structure a, the middle of the optical fiber receiving member 101 is in a plate-like structure B, the cylindrical structure a is provided with a first through hole 103, the center of the plate-like structure B is provided with a welding table 109, the welding table 109 is provided with a welding point 105, the plate-like structure B is provided with winding tables 110 on the upper side and the lower side of the welding table 109, and the outer circle diameters of the two ends of the optical fiber receiving member 101 are equal to the inner circle diameter of; two ends (cylindrical structure A) of the optical fiber accommodating part 101 are connected with a second bulge part 107, and a second taper hole 108 is arranged on the second bulge part 107; the second boss 107 is screwed with the external nut presser 207 and presses the presser 206 in the second tapered hole 108. Wherein, the winding table 110 may be provided with a groove C, and the optical fiber 302 may be wound on the groove C, so as to enclose the wound optical fiber in the groove and prevent the optical fiber 302 from moving and loosening.
Two optical fibers 302 sequentially pass through a through hole reserved in the outer nut pressing part 207, a through hole reserved in the pressing part 206, the first through hole 103 and the wire guide groove 104, the two optical fibers 302 are respectively wound on the upper winding table 110 and the lower winding table 110 after being welded at the welding point 105, then the wound optical fibers are bonded and fixed, the protection sleeve 102 is sleeved outside the optical fiber accommodating part 101 after the optical fibers are wound, and the protection sleeve 102 and the two ends of the optical fiber accommodating part 101 can be in threaded connection.
It should be noted that, a person skilled in the art may design an implementation form of the sealing structure according to practical situations, and the sealing structure is not limited to that described in the embodiments of the present application. In addition, the structure of the optical fiber housing 101 may have other implementation modes according to the winding mode of the optical fiber, and is not limited to the embodiments of the present application.
The same or similar parts in the embodiments of the present application may be referred to each other, and the description of the embodiments is omitted.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (12)
1. An optical cable connecting device is characterized by comprising a main body structure and sealing structures arranged at two ends of the main body structure; the main body structure comprises an optical fiber accommodating part (101) and a protective sleeve (102), two ends of the optical fiber accommodating part (101) are respectively provided with a first through hole (103), and the outside of the optical fiber accommodating part (101) is provided with a welding point (105);
the optical fibers of the two optical cables respectively pass through the sealing structures and the first through holes (103) at the two ends of the main body structure, and are respectively wound on the optical fiber accommodating parts (101) upwards and downwards after being welded at the welding points (105); the protective sleeve (102) is sleeved outside the optical fiber accommodating part (101) wound with the optical fiber.
2. An optical cable connection device according to claim 1, wherein the sealing structure comprises an outer sealing head (201), a second through hole (202) is arranged in the outer sealing head (201), and the outer sealing head (201) is plugged into one end of the main structure and connected with the protection sleeve (102).
3. The optical cable connection device according to claim 2, wherein both ends of the optical fiber receiving member (101) are open structures, the sealing structure further comprises an inner sealing head (203), a threaded pressing member (204) and a pressing nail (205), a tapered pressing member (206) and an inner threaded hole are arranged in the inner sealing head (203), and an external thread is arranged outside the pressing nail (205); the pressing nail (205) is screwed into the internal thread hole of the internal sealing head (203) and is abutted with the extrusion piece (206); the inner sealing head (203) penetrates through a through hole reserved in the threaded pressing piece (204), and the threaded pressing piece (204) is in threaded connection with one end of the optical fiber accommodating piece (101) so that the inner sealing head (203) is pressed between the threaded pressing piece (204) and the optical fiber accommodating piece (101); the length of the protective sleeve (102) is greater than the length of the optical fiber receptacle (101).
4. The cable connecting device according to claim 3, wherein the sealing structure further comprises an outer nut pressing member (207) and a ferrule (208), a first protrusion (209) is provided on the top of the outer sealing head (201), a first tapered hole (210) is provided in the first protrusion (209), the first tapered hole (210) communicates with the second through hole (202), an external thread is provided on the outside of the first protrusion (209), and the outer nut pressing member (207) presses the ferrule (208) into the first tapered hole (210) when the outer nut pressing member (207) is threadedly coupled with the first protrusion (209).
5. An optical cable connection device according to claim 4, wherein a third through hole (211) is provided in the inner sealing head (203), a fourth through hole (212) is provided in the pressing member (206), a fifth through hole (213) is provided in the pressing pin (205), a sixth through hole (214) is provided in the ferrule (208), and a seventh through hole (215) is provided in the outer nut pressing member (207).
6. A cable connection device according to any one of claims 3 to 5, wherein the optical fibre receiving member (101) is provided at both ends with detents (106) and internal threads at an opening above the detents (106), the inner sealing head (203) is provided with a boss (216) matching with the detents (106), and the presser (204) is provided with external threads; the optical fiber accommodating part (101) is in threaded connection with a threaded pressing part (204), and the boss (216) is clamped inside the clamping position (106).
7. The optical cable connection device according to claim 4, wherein the outer sealing head (201) comprises a large end portion (217) and a small end portion (218), the outer diameter of the large end portion (217) is larger than that of the small end portion (218), the small end portion (218) is connected with the bottom of the large end portion (217), the top of the large end portion (217) is connected with the first protruding portion (209), the outer portion of the small end portion (218) is provided with an external thread and a sealing groove (219), the two ends of the protective sleeve (102) are provided with internal threads, the small end portion (218) is in threaded connection with the protective sleeve (102), and the large end portion (217) is crimped on the end face of the protective sleeve (102).
8. The optical cable connection device according to claim 1, wherein the optical fiber receiving member (101) has a cylindrical structure, the optical fiber receiving member (101) is further provided with a wire guiding groove (104) at both ends thereof, the wire guiding groove being communicated with the first through hole (103), and the optical fiber receiving member (101) has a solid structure or a hollow structure inside thereof; the optical fibers of the two optical cables respectively pass through the sealing structures at the two ends of the main body structure, the first through hole (103) and the wire guide groove (104), and are respectively wound on the outer wall of the cylindrical structure upwards and downwards after being welded at the welding point (105).
9. The cable connection device according to claim 1, wherein the optical fiber receiving member (101) has a cylindrical structure at both ends and a plate-like structure in the middle, the first through hole (103) is located on the cylindrical structure, the plate-like structure has a welding station (109) at the center, and the welding point (105) is located on the welding station (109); winding tables (110) are respectively arranged on the upper side and the lower side of the welding table (109) on the plate-shaped structure, optical fibers of two optical cables respectively penetrate through the sealing structures and the first through holes (103) at the two ends of the main body structure, and are respectively wound on the two winding tables (110) after being welded at the welding point (105).
10. The optical cable connection device according to claim 1 or 8, wherein the outer diameter of the middle portion of the optical fiber receiving member (101) is smaller than the outer diameter of both ends, and the outer diameter of both ends of the optical fiber receiving member (101) is equal to the inner diameter of the protective sleeve (102).
11. An optical cable connecting device is characterized by comprising an optical fiber accommodating part (101) and a protective sleeve (102), wherein outer nut pressing parts (207) and conical pressing parts (206) are arranged at two ends of the optical fiber accommodating part (101), the optical fiber accommodating part (101) is of a solid cylindrical structure, first through holes (103) and wire guide grooves (104) are respectively arranged at two ends of the optical fiber accommodating part (101), the first through holes (103) are communicated with the wire guide grooves (104), and welding points (105) are arranged on the outer part of the optical fiber accommodating part (101); the diameter of the outer circle of the middle part of the optical fiber accommodating part (101) is smaller than the diameter of the outer circles of the two ends, and the diameter of the outer circles of the two ends of the optical fiber accommodating part (101) is equal to the diameter of the inner circle of the protective sleeve (102); two ends of the optical fiber accommodating part (101) are connected with second protruding parts (107), and second conical holes (108) are formed in the second protruding parts (107); the second bulge (107) is in threaded connection with the external nut pressing piece (207) and presses the pressing piece (206) in the second conical hole (108); the optical fibers of the two optical cables sequentially pass through the through hole of the outer nut pressing piece (207), the through hole of the pressing piece (206), the first through hole (103) and the wire guiding groove (104), and are respectively wound on the outer wall of the optical fiber accommodating piece (101) upwards and downwards after being welded at the welding point (105); the protective sleeve (102) is sleeved outside the optical fiber accommodating part (101) wound with the optical fiber.
12. An optical cable connecting device is characterized by comprising an optical fiber accommodating part (101) and a protective sleeve (102), wherein outer nut pressing parts (207) and conical pressing parts (206) are arranged at two ends of the optical fiber accommodating part (101), two ends of the optical fiber accommodating part (101) are of a cylindrical structure, the middle of the optical fiber accommodating part is of a platy structure, a first through hole (103) is formed in the cylindrical structure, a welding table (109) is arranged in the center of the platy structure, a welding point (105) is arranged on the welding table (109), winding tables (110) are respectively arranged on the upper side and the lower side of the welding table (109) on the platy structure, and the outer circle diameter of the two ends of the optical fiber accommodating part (101) is equal to the inner circle diameter of the protective sleeve (102); two ends of the optical fiber accommodating part (101) are connected with second protruding parts (107), and second conical holes (108) are formed in the second protruding parts (107); the second bulge (107) is in threaded connection with the external nut pressing piece (207) and presses the pressing piece (206) in the second conical hole (108); the optical fibers of the two optical cables sequentially pass through the through hole of the outer nut pressing piece (207), the through hole of the pressing piece (206) and the first through hole (103), and are respectively wound on the two winding tables (110) after being welded at the welding point (105); the protective sleeve (102) is sleeved outside the optical fiber accommodating part (101) wound with the optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911100815.6A CN110806616B (en) | 2019-11-12 | 2019-11-12 | Optical cable connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911100815.6A CN110806616B (en) | 2019-11-12 | 2019-11-12 | Optical cable connecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110806616A CN110806616A (en) | 2020-02-18 |
| CN110806616B true CN110806616B (en) | 2020-06-30 |
Family
ID=69502499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911100815.6A Active CN110806616B (en) | 2019-11-12 | 2019-11-12 | Optical cable connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110806616B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397723B (en) * | 2020-04-27 | 2022-06-28 | 山东省科学院激光研究所 | Three-component optical fiber laser micro-vibration sensor with combined structure and application thereof |
| CN114323252B (en) * | 2022-03-16 | 2022-07-19 | 山东省科学院激光研究所 | Protection device of fiber grating wave detector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4767173A (en) * | 1985-06-26 | 1988-08-30 | Societa' Cavi Pirelli S.P.A. | Submarine telecommunication line with optical fibers |
| CN101718896A (en) * | 2009-12-17 | 2010-06-02 | 江东金具设备有限公司 | Deep-sea cable connector |
| CN202149953U (en) * | 2011-07-27 | 2012-02-22 | 北京市电力公司 | Optical fiber splicing accommodating protective device and mounting structure thereof |
| CN103676054A (en) * | 2013-12-13 | 2014-03-26 | 山东省科学院激光研究所 | Optical cable connecting device special for oil field |
| CN204389749U (en) * | 2014-12-25 | 2015-06-10 | 中国海洋石油总公司 | Draw optical fiber and optical cable connecting device |
| CN204964844U (en) * | 2015-09-24 | 2016-01-13 | 中国电信股份有限公司江苏分公司 | Outdoor optical cable hot melt protection of pipe box |
-
2019
- 2019-11-12 CN CN201911100815.6A patent/CN110806616B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4767173A (en) * | 1985-06-26 | 1988-08-30 | Societa' Cavi Pirelli S.P.A. | Submarine telecommunication line with optical fibers |
| CN101718896A (en) * | 2009-12-17 | 2010-06-02 | 江东金具设备有限公司 | Deep-sea cable connector |
| CN202149953U (en) * | 2011-07-27 | 2012-02-22 | 北京市电力公司 | Optical fiber splicing accommodating protective device and mounting structure thereof |
| CN103676054A (en) * | 2013-12-13 | 2014-03-26 | 山东省科学院激光研究所 | Optical cable connecting device special for oil field |
| CN204389749U (en) * | 2014-12-25 | 2015-06-10 | 中国海洋石油总公司 | Draw optical fiber and optical cable connecting device |
| CN204964844U (en) * | 2015-09-24 | 2016-01-13 | 中国电信股份有限公司江苏分公司 | Outdoor optical cable hot melt protection of pipe box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110806616A (en) | 2020-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110806616B (en) | Optical cable connecting device | |
| JP2868828B2 (en) | Optical fiber cable splicer | |
| US4801191A (en) | Connecting section for optical fiber cable | |
| CA2489858C (en) | Splice for optical cable | |
| JP2007089343A (en) | Assembly method for intermediate connection structure of superconductive cable | |
| CN109521531B (en) | Tube penetrating type pre-terminated jumper wire and tube penetrating type pre-terminated optical cable connecting device | |
| US4412878A (en) | Method of joining together optical fibre undersea cables | |
| CN206339684U (en) | Hot melt type optical fiber quick connector | |
| US5085494A (en) | Fiber optic splice means and method | |
| EP2549315A2 (en) | Method, device and kit of parts for attaching an optical fiber in an optical fiber connector | |
| CN111045160B (en) | Bundling optical fiber connector | |
| JPH0772338A (en) | Traction terminal part of optical cable with connector | |
| EP4145201A1 (en) | Prefabricated connector, coupler and prefabricated connector assembly | |
| CN109683248A (en) | Optical fiber connector and its assemble method | |
| CN112946840B (en) | Optical fiber connector assembly and optical fiber connecting method | |
| CN215813891U (en) | Be used for photomultiplier voltage divider fixing device | |
| CN218272860U (en) | Connecting device for connecting photoelectric composite cable and tractor and geological information acquisition equipment | |
| CN220913387U (en) | SC photoelectric connector and flange plate | |
| CN216690995U (en) | Photoelectric combined type bridle for oil well annulus testing | |
| CN113991591A (en) | Leading-out device and method for built-in double-optical-fiber high-voltage cable terminal | |
| CN220773311U (en) | Acoustic-magnetic composite cable force-bearing joint | |
| RU214395U1 (en) | Bare fiber adapter | |
| CN210465766U (en) | Optical fiber connector | |
| CN114323252B (en) | Protection device of fiber grating wave detector | |
| CN217238477U (en) | Tensile compression joint structure of optical cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |