CN108761657B - Waterproof connector, adapter and waterproof connector assembly - Google Patents
Waterproof connector, adapter and waterproof connector assembly Download PDFInfo
- Publication number
- CN108761657B CN108761657B CN201810557184.XA CN201810557184A CN108761657B CN 108761657 B CN108761657 B CN 108761657B CN 201810557184 A CN201810557184 A CN 201810557184A CN 108761657 B CN108761657 B CN 108761657B
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- China
- Prior art keywords
- wall
- inner frame
- tail
- waterproof connector
- adapter
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- 239000000428 dust Substances 0.000 claims abstract description 45
- 238000003780 insertion Methods 0.000 claims abstract description 5
- 230000037431 insertion Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 23
- 230000003287 optical effect Effects 0.000 claims description 18
- 238000002788 crimping Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 239000013307 optical fiber Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004760 aramid Substances 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3847—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces
- G02B6/3849—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces using mechanical protective elements, e.g. caps, hoods, sealing membranes
-
- 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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The present invention relates to a waterproof connector, an adapter and a waterproof connector assembly. The waterproof connector comprises a waterproof connector and a waterproof adapter, wherein a first connecting part of the adapter is in airtight plug connection with a front shell of the waterproof connector, a dust cover on the adapter is in airtight plug connection with a cap head of a dust cover of the waterproof connector, a dust plug on the adapter is in clearance fit plug connection with a front inner cavity of a first inner frame of the waterproof connector, and a second dust jack on the adapter body is in clearance fit plug connection with a front outer wall of a second inner frame of the waterproof connector. According to the waterproof connector, the adapter and the waterproof connector assembly, the waterproof structures which can guarantee air tightness are designed at a plurality of positions on the waterproof connector, and the waterproof structures which are convenient to insert and pull out and position are arranged at a plurality of positions, so that the overall waterproof effect of the waterproof connector assembly is greatly enhanced, the waterproof connector assembly is more convenient to install or detach, the insertion and pull out are more convenient, the use cost is effectively low, and the installation efficiency is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a waterproof connector, an adapter, and a waterproof connector assembly.
Background
The optical fiber greatly improves the communication speed and quality, and along with the rapid development of economy and technology, the optical fiber communication technology is adopted by each household, the popularization of the optical fiber in the household is particularly important, and the waterproof performance of the connector assembly specially used for outdoor connection is particularly important. The existing connector assembly comprises a connector and an adapter matched with the connector, wherein the adapter is generally arranged below a case shell, one end connected with a common connector is arranged inside the case, and the other end connected with a waterproof connector is arranged outside the case; when in connection, the insert core of the conventional connector inside the waterproof connector is aligned to the insertion hole of the adapter, the shell of the waterproof connector is locked on the adapter through threads or buckles, and the contact part of the connector and the adapter ensures the air tightness inside the connector by utilizing a sealing rubber ring or a rubber mat. The existing connector assembly is poor in tightness between the connector and the connecting wire tube, poor in waterproof effect, external water easily enters the connecting wire tube, poor in tightness between the connector and the adapter, gaps are easily formed on the joint surface, poor in waterproof effect, when the connector assembly is exposed to a humid environment, water easily flows into the interior from gaps between the connector and the adapter, when the water permeates into the surface of the ceramic ferrule, signal transmission can be seriously affected, loss is increased, and long-term use reliability is affected.
Disclosure of Invention
The invention aims to provide a waterproof connector, an adapter and a waterproof connector assembly.
The technical scheme adopted for solving the technical problems is as follows: the waterproof connector comprises a first inner frame, a front shell, a rear shell and a tail sleeve which are sequentially connected into an inner hollow shell along a central axis, wherein a second inner frame, a core insert, a spring, a sealing rubber ring, a stop seat, a connecting piece, an optical cable, a crimping piece and a heat shrinking pipe which are sequentially inserted along the same central axis are further arranged in the inner hollow shell; the front shell is internally provided with an annular elastic piece which can be sleeved outside the first inner frame in a separating way, the tail end of the first inner frame is inserted from the front opening of the front shell and penetrates through the annular elastic piece to extend out of the tail end of the front shell, and the first inner frame is gradually inserted towards the front shell to enable the annular elastic piece to generate stress deformation; the outer wall of the first inner frame, which is close to the front end, is sleeved with a sealing rubber gasket, the sealing rubber gasket is sleeved on the outer wall of the stop seat, the heat shrinkage pipe is tightly wrapped on the outer wall of the joint of the tail end of the stop seat and the optical cable, and the optical cable wrapped with the heat shrinkage pipe extends out from the tail end of the tail sleeve.
In a preferred embodiment, the first inner frame is in an inner hollow circular tube shape, a raised annular first baffle ring is formed in the middle of the outer wall of the first inner frame, the outer diameter of the first baffle ring is not larger than the inner diameter of the front shell, and three recessed limit notches are uniformly formed on the annular side wall of the first baffle ring; the front end outer wall of the first inner frame and the position close to the first baffle ring are provided with a first limit groove which is concaved inwards in an annular mode, and the sealing rubber cushion can be sleeved in the first limit groove in a sealing mode; two limit bayonets which are symmetrically arranged and are recessed towards the direction of the first baffle ring are formed on the front end part of the first inner frame; a first flat platform is formed on the outer wall of the front end of the first inner frame, one end of the first flat platform is connected with the first baffle ring, and the other end of the first flat platform extends to the front end part of the first inner frame; the inner wall of the first inner frame is provided with a raised annular limiting step at a position close to the middle of the inner wall of the first inner frame, a raised long-strip boss is formed at a position close to the tail end of the inner wall of the first inner frame, one end of the boss is connected with the limiting step, and the other end of the boss extends to the tail end of the first inner frame.
In a preferred embodiment, the front shell is in an hollow circular tube shape, a raised annular second baffle ring is formed on the inner wall near the tail end of the front shell, the inner diameter of the second baffle ring is larger than the outer diameter of the first inner frame and smaller than the outer diameter of the first baffle ring, and the annular elastic sheet is abutted between the first baffle ring of the first inner frame and the second baffle ring of the front shell; three cylindrical first limit bumps are uniformly formed on the inner wall close to the middle section of the front shell; an indication block for indicating the rotation direction is formed on the outer wall of the front shell.
In a preferred embodiment, the stop seat comprises a first connecting column, a second connecting column and a third connecting column which are sequentially connected along a central axis and are integrally formed; a limiting clamping groove extending along the axial direction of the second connecting column is formed in the outer wall of the second connecting column, the limiting clamping groove is in concave-convex connection with a boss on the inner wall of the tail end of the first inner frame, and the first connecting column is inserted into the limiting clamping groove on the second connecting column from the tail end of the first inner frame to be connected with the boss in a plugging manner so as to limit the continuous insertion and axial rotation of the stop seat; an annular concave mounting groove is formed on the outer wall, close to the second connecting column, of the third connecting column, and the sealing rubber ring can be hermetically sleeved in the mounting groove; the spring is sleeved on the outer wall of the tail end of the lock pin, the tail end of the lock pin sleeved with the spring is inserted into the first connecting column of the stop seat, the front end of the lock pin is fixedly inserted from the tail end of the second inner frame and extends out from the front end of the second inner frame, and the tail end part of the second inner frame is propped against the end face of the second connecting column of the stop seat, which is connected with the first connecting column; the front end of the optical cable is inserted from the tail end of the third connecting column of the stop seat and extends out through the front end of the inserting core.
In a preferred embodiment, the rear shell comprises a first connecting end, a second connecting end and a third connecting end which are sequentially connected along a central axis and are integrally formed, the first connecting end and the tail end of the first inner frame are mutually inserted and connected through screw locking, and a second limiting groove which is annular concave is formed on the outer wall of the third connecting end; the tail sleeve is in a hollow round tube shape, the front end opening of the tail sleeve is larger than the tail end opening, the front end of the tail sleeve is mutually spliced with the third connecting end of the rear shell, an annular convex second limiting ring is formed on the inner wall of the front end opening of the tail sleeve, the second limiting ring is matched with the second limiting groove and fixedly connected with the tail sleeve and the rear shell, and an annular concave third limiting groove is formed on the outer wall of the tail sleeve.
In a preferred embodiment, the dustproof cap is in an hollow cap shape and is integrally connected by a cap head and a cap tail which are coaxially arranged, the cap head is cylindrical, a first dustproof socket is formed in the cap head, the tail end of the cap tail is airtight, the cap head is inserted into the front shell along a gap between the outer wall of the front end of the first inner frame and the inner wall of the front shell, the front end of the first inner frame is inserted into the first dustproof socket, a second flat platform which extends to the outside along the axial direction of the second flat platform is formed on the inner wall of the cap head, and the second flat platform is matched and attached with the first flat platform of the first inner frame to fix the cap head and the first inner frame and limit the relative rotation of the cap head and the first inner frame; the outer wall of the cap head is provided with a first rotary part with annular radial protrusions, and three first hook-shaped grooves which extend towards the other end of the first rotary part are uniformly formed on the end part of the first rotary part towards the front end of the cap head; the cap head is inserted into the first limit lug towards the inside of the front shell and corresponds to the notch of the first hook-shaped groove of the first rotating part, the front shell is axially rotated, and the first limit lug moves to the first hook part formed at the tail end of the first hook-shaped groove along the track forming direction of the first hook-shaped groove so as to enable the cap head and the front shell to be axially connected into a whole; the two ends of the first connecting piece are respectively connected with a first mounting ring, and one of the first mounting rings is hooped on the outer wall of the cap tail close to the tail end.
The waterproof adapter comprises an adapter body, a sleeve, a dust cover and a fastener, wherein the sleeve is fixed inside the adapter body and is arranged with the central axis of the sleeve, a second mounting ring is hooped on the outer wall of the adapter body, the second mounting ring is connected with the dust cover through a second connecting piece, and the fastener is detachably sleeved and fixed on the outer wall of the adapter body to limit the second mounting ring from slipping; .
In a preferred embodiment, the adapter body includes a baffle, two sides of the baffle are respectively formed with a first connection part and a second connection part which are both hollow tubular structures, the first connection part and the second connection part are arranged with a central axis, the sleeve is vertically intersected with the baffle, two ends of the sleeve are respectively and correspondingly arranged in inner cavities of the first connection part and the second connection part, and the first connection part and the second connection part can be connected with a connector in a separated way and conduct between the two connectors through the sleeve; the dust cover is detachably packaged and fixed on the end part of the first connecting part, the dust cover and the fastener can be sequentially sleeved on the outer wall of the second connecting part, and the second mounting ring connected with the dust cover is fixed between the fastener and the baffle.
In a preferred embodiment, a second rotating part with annular radial protrusions is formed on the outer wall of the first connecting part, three second hook-shaped grooves which extend towards the other end of the second rotating part are uniformly formed on the front end part of the second rotating part towards the first connecting part, and a second hook part is formed on the tail end of the second hook-shaped groove in the track forming direction; three cylindrical second limit projections are uniformly formed on the inner wall of the dust cover, the dust cover moves towards the first connecting part until the second limit projections correspond to the notch of the second hook-shaped groove of the second rotating part, the dust cover is axially rotated, and the second limit projections move along the track forming direction of the second hook-shaped groove to the second hook-shaped part formed at the tail end of the second hook-shaped groove so as to enable the dust cover and the first connecting part to be axially connected into a whole; a third flat platform extending to the outside along the axial direction of the first flat platform is formed on the inner wall of the first connecting part; a coaxially arranged dustproof plug is further formed in the first connecting portion, the end portion of the dustproof plug exceeds the outer portion of the first connecting portion, and a second dustproof socket extending along the axial direction of the dustproof plug is formed in the dustproof plug; two limit clamping blocks which are symmetrically arranged are formed on the inner wall of the first connecting part, and the limit clamping blocks are formed in a gap formed between the outer wall of the dustproof plug and the inner wall of the first connecting part; the middle part of baffle be formed with one with the coaxial third connecting portion that sets up of first connecting portion and second connecting portion, the both ends of third connecting portion extend respectively to in the inner chamber of first connecting portion and second connecting portion, third connecting portion are the hollow tubulose of both ends open-ended, the sleeve pipe detachable coaxial fixation is in the third connecting portion.
A waterproof connector assembly comprises the waterproof connector, the adapter and a conventional connector, wherein a first connecting part of the adapter is in airtight plug connection with a front shell of the waterproof connector, a second connecting part of the adapter is in airtight plug connection with the conventional connector, and a dust cover on the adapter is in airtight plug connection with a cap head of a dust cover of the waterproof connector; the first connecting part and the second hook-shaped groove on the adapter are respectively identical to the cap head and the first hook-shaped groove on the dustproof cap of the waterproof connector in structure; the dustproof plug on the adapter body is in clearance fit connection with the inner cavity of the front end of the first inner frame of the waterproof connector, and the second dustproof socket on the adapter body is in clearance fit connection with the outer wall of the front end of the second inner frame of the waterproof connector.
The waterproof connector, the adapter and the waterproof connector assembly have the beneficial effects that: through the waterproof construction that can guarantee the gas tightness in many places of design on waterproof connector and set up many places and make the whole waterproof effect of waterproof connector subassembly strengthen greatly, and it is more convenient to install or dismantle, and the plug is more convenient, effectively low use cost improves installation effectiveness.
Drawings
Fig. 1 is a schematic perspective view of a waterproof connector in an embodiment.
Fig. 2 is a schematic perspective view showing a sealed state of the waterproof connector in an embodiment.
Fig. 3 is an exploded view of a waterproof connector in an embodiment.
Fig. 4 is a schematic perspective view of the first inner frame in fig. 3.
Fig. 5 is a side view of the first inner frame of fig. 4.
Fig. 6 is a perspective view of the first inner frame at another angle.
Fig. 7 is a perspective view of the front case of fig. 3.
Fig. 8 is a diagram showing a positional relationship among the first inner frame, the annular elastic piece and the front shell in an embodiment.
Fig. 9 is a perspective view of the stopper seat of fig. 3.
Fig. 10 is a perspective view of the rear case of fig. 3.
Fig. 11 is a perspective view of the boot of fig. 3.
Fig. 12 is a cross-sectional view of the boot of fig. 11.
Fig. 13 is a perspective view of the dust cap of fig. 3.
Fig. 14 is a schematic view illustrating an assembly sequence of the waterproof connector in an embodiment.
Fig. 15 is a schematic perspective view of an adapter in another embodiment.
Fig. 16 is an exploded perspective view of another embodiment of an adapter.
Fig. 17 is another angular perspective view of the adapter body of fig. 16.
Fig. 18 is a front view of the adapter body of fig. 16.
FIG. 19 is a cross-sectional view of section A-A of FIG. 18.
Fig. 20 is a schematic perspective view of a waterproof connector assembly according to yet another embodiment.
Fig. 21 is an exploded perspective view of a waterproof connector assembly according to yet another embodiment.
Detailed Description
The waterproof connector assembly of the present invention will be described in further detail with reference to specific embodiments and drawings.
Referring to fig. 1 to 3, a waterproof connector includes a first inner frame 102, a front shell 103, a rear shell 112 and a tail sleeve 114 sequentially connected along a central axis to form an inner hollow shell, a second inner frame 104, a ferrule 105, a spring 106, a sealing rubber ring 108, a stop seat 109, a connecting piece 110, an optical cable 116, a crimping piece 111 and a heat shrinkage tube 113 sequentially inserted along the same central axis are further disposed in the inner hollow shell, a first dust cap 115 is connected to an outer wall of the tail sleeve 114 through a first connecting piece 1153, and the first dust cap 115 is detachably packaged and fixed at an opening in front of the front shell 113.
The outer wall of the first inner frame 102, which is close to the front end, is sleeved with a sealing rubber pad 101, the sealing rubber pad 108 is sleeved on the outer wall of the stop seat 109, the thermal shrinkage tube 113 is tightly wrapped on the outer wall of the joint of the tail end of the stop seat 109 and the optical cable 116, and the optical cable 116 wrapped with the thermal shrinkage tube 113 extends to the outside from the tail end of the tail sleeve 114.
Referring to fig. 8, an annular elastic sheet 107 is further disposed in the front shell 113 and detachably sleeved outside the first inner frame 102, the tail end of the first inner frame 102 is inserted from the front opening of the front shell 113 and passes through the annular elastic sheet 107, and then extends out of the tail end of the front shell 113, the first inner frame 102 is gradually inserted in the direction of the front shell 113 to enable the annular elastic sheet 107 to generate stress deformation, the annular elastic sheet 107 is clamped by the first inner frame 102 and the front shell 113, and a rear thrust is provided for the first inner frame 102, so that the first inner frame 102 can fully contact with the sealing rubber pad 101, and the air tightness of the waterproof connector is ensured.
Referring to fig. 4 to 6, the first inner frame 102 is hollow and circular, a protruding annular first baffle ring 1024 is formed in the middle of the outer wall of the first inner frame, the outer diameter of the first baffle ring 1024 is not greater than the inner diameter of the front shell 113, and three recessed limiting notches 1026 are uniformly formed on the annular side wall of the first baffle ring 1024.
The front end outer wall of the first inner frame 102 and a position close to the first baffle ring 1024 are formed with a first limiting groove 1023 with an annular concave shape, and the sealing rubber pad 101 can be hermetically sleeved in the first limiting groove 1023.
Two limit bayonets 1025 which are symmetrically arranged and are recessed towards the direction of the first baffle ring 1024 are formed on the front end part of the first inner frame 102; a first flat table 1021 is formed on the outer wall of the front end of the first inner frame 102, one end of the first flat table 1021 is connected to the first baffle ring 1024, and the other end extends to the front end of the first inner frame 102.
A raised annular limiting step 1027 is formed on the inner wall of the first inner frame 102 near the middle part of the inner wall, a raised strip-shaped boss 1022 is formed on the inner wall of the first inner frame 102 near the tail end of the inner wall, one end of the boss 1022 is connected with the limiting step 1027, and the other end extends to the tail end of the first inner frame 102.
Referring to fig. 7 and 8, the front shell 103 is in an hollow circular tube shape, a raised annular second baffle ring 1032 is formed on the inner wall near the tail end of the front shell 103, the inner diameter of the second baffle ring 1032 is larger than the outer diameter of the first inner frame 102 and smaller than the outer diameter of the first baffle ring 1024, and the annular elastic sheet 107 abuts between the first baffle ring 1024 of the first inner frame 102 and the second baffle ring 1032 of the front shell 103; three cylindrical first limit bumps 1031 are uniformly formed on the inner wall close to the middle section of the front shell 103; an indication block 1033 for indicating the rotation direction is formed on the outer wall of the front shell 103 to prompt a user to lock or unlock the direction, so that the front shell is convenient to insert and pull out.
Referring to fig. 9, the retaining seat 109 includes a first connecting post 1091, a second connecting post 1092, and a third connecting post 1093 sequentially connected along a central axis and integrally formed.
The outer wall of the second connecting column 1092 is formed with a limiting clamping groove 1095 extending along the axial direction thereof, the limiting clamping groove 1095 is in concave-convex connection with a boss 1022 on the inner wall of the tail end of the first inner frame 102, relative rotation between the stop seat 109 and the first inner frame 102 is prevented, and the first connecting column 1091 is inserted into the limiting clamping groove 1095 on the second connecting column 1092 from the tail end of the first inner frame 102 and is connected with the boss 1022 in a connection mode so as to limit continuous insertion and axial rotation of the stop seat 109.
An annular concave mounting groove 1094 is formed on the outer wall of the third connecting column 1093, which is close to the second connecting column 1092, and a sealing rubber ring 108 can be hermetically sleeved in the mounting groove 1094 so as to ensure the air tightness of the connecting position; the spring 1096 is sleeved on the outer wall of the tail end of the ferrule 105 with the tail handle, the tail end of the ferrule 105 sleeved with the spring 1096 is inserted into the first connecting column 1091 of the stop seat 109, the front end of the ferrule 105 is fixedly inserted from the tail end of the second inner frame 104 and extends out from the front end of the second inner frame 104, and the tail end part of the second inner frame 104 abuts against the end face, connected with the first connecting column 1091, of the second connecting column 1092 of the stop seat 109; the front end of the optical cable 116 is inserted from the rear end of the third connection post 1093 of the stopper 109 and protrudes through the front end portion of the ferrule 105.
Referring to fig. 10, the rear shell 112 includes a first connecting end 1121, a second connecting end 1122 and a third connecting end 1123, which are sequentially connected along a central axis and integrally formed, the first connecting end 1121 and the tail end of the first inner frame 102 are inserted into each other and are connected by screw locking, and a second limiting groove 1124 with an annular concave shape is formed on the outer wall of the third connecting end 1123.
Referring to fig. 11 to 12, the tail sleeve 114 is a hollow circular tube with a front end opening larger than a rear end opening, the front end of the tail sleeve is inserted into the third connecting end 1123 of the rear shell 112, a second annular protruding limiting ring 1141 is formed on an inner wall of the tail sleeve 114 near the front end opening, the second limiting ring 1141 is matched with the second limiting groove 1124 to fixedly connect the tail sleeve 114 with the rear shell 112, and an annular concave third limiting groove 1142 is formed on an outer wall of the tail sleeve 114 to connect the dust cap 115.
Referring to fig. 13, the dust cap 115 is in an inner hollow cap shape, and is integrally connected by a cap head 1156 and a cap tail 1158 which are coaxially arranged; the cap 1156 is cylindrical, a first dust-proof socket 1155 is formed in the cap 1156, the tail end of the cap tail 1158 is sealed, the cap 1156 is inserted into the front shell 103 along a gap between the outer wall of the front end of the first inner frame 102 and the inner wall of the front shell 103, the front end of the first inner frame 102 is inserted into the first dust-proof socket 1155, a second flat table 1152 extending to the outside along the axial direction of the cap 1156 is formed on the inner wall of the cap 1156, and the second flat table 1152 is matched with and attached to the first flat table 1021 of the first inner frame 102 to fix the cap 1156 and the first inner frame 102 and limit relative rotation of the two, thereby ensuring close contact of the end faces of the ferrule and preventing error.
The outer wall of the cap head 1156 is formed with a first rotating part 1157 protruding radially in an annular shape, and three first hook grooves 1151 each extending toward the other end of the first rotating part 1157 are uniformly formed along the end of the first rotating part 1157 toward the front end of the cap head 1156; the cap 1156 is inserted into the front housing 103 toward the inside of the front housing 103 and corresponds to the notch of the first hook-shaped groove 1151 of the first rotating portion 1157, the front housing 103 is rotated in the axial direction, the first limit bump 1031 moves to the first hook-shaped portion 11511 formed at the tail end of the first hook-shaped groove 1151 along the track direction of the first hook-shaped groove 1151, so that the cap 1156 is connected with the front housing 103 in the axial direction as a whole, and the front housing 103 can be separated from the cap 1156 by reversely rotating the front housing 103.
The first attachment members 1153 are each coupled at each end to a first mounting ring 1154, wherein one of the first mounting rings 1154 is configured to be coupled to an outer wall of the cap tail 1158 proximate the tail end.
Referring to fig. 14, in the assembly of the waterproof connector, firstly, two layers of sheaths of 5.0mm and 2.0mm outside an optical cable 116 of 5.0mm are respectively peeled off to a proper length, then the front end of the optical cable 116 is sequentially penetrated into a first dustproof cap 115, a tail sleeve 114, a heat shrinkage tube 113, a rear shell 112, a crimping piece 111, a connecting piece 110, a stop seat 109 sleeved with a sealing rubber ring 108 and a spring 106, then the sheath of the front end of the optical cable 116 with a proper length is peeled off to expose a bare optical fiber, and then the bare optical fiber is penetrated into an inserting core 105 with a tail handle, and then the heating and the curing are carried out; grinding the bare core insert after curing is finished; after grinding, firstly inserting the ferrule 105 with the tail handle from the tail end of the second inner frame 104, pushing the spring 106 into the second inner frame 104, then inserting the stop seat 109 into the second inner frame 104 and clamping, pushing the connecting piece 110 into the stop seat 109 and clamping, uniformly distributing the aramid fibers of the optical cable 116 on the outer wall of the tail end of the connecting piece 110, pushing the crimping piece 111, crimping by using a crimping tool, at the moment, wrapping the crimping piece 111 on the outer part of the aramid fibers of the optical cable 116, pushing the heat shrinkage tube 113 to the stop seat 109 after crimping, enabling the heat shrinkage tube 113 to wrap the tail part of the stop seat 109, and performing heat shrinkage operation by using a hot air gun to obtain a semi-finished product; then, the sealing rubber pad 101 is clamped at the first limit groove 1023 of the first inner frame 102, the front shell 103, the annular elastic sheet 107 and the first inner frame 102 are sequentially threaded into the semi-finished product, the annular elastic sheet 107 is plugged into the bottom of the front shell 103, the boss 1022 of the first inner frame 102 is required to be clamped at the limit clamping groove 1095 of the stop seat 109 when the first inner frame 102 is threaded, the rear shell 112 is pushed up and screwed with the first inner frame 102, the tail sleeve 114 is pushed up, the second limit clamping ring 1141 of the tail sleeve 114 is just clamped at the second limit groove 1124 of the rear shell 112, the first mounting ring 1154 of the dust cap 115 is clamped at the third limit groove 1142 of the tail sleeve 114, and the dust cap 115 is covered at the front end of the front shell 103, so as to complete assembly.
Referring to fig. 15 to 16, in another embodiment, a waterproof adapter includes an adapter body 201, a sleeve 202, a dust cover 204 and a fastener 203, wherein the sleeve 202 is fixed inside the adapter body 201 and is disposed with the same central axis, a second mounting ring 205 is hooped on an outer wall of the adapter body 201, the second mounting ring 205 is connected with the dust cover 204 through a second connecting piece 206, and the fastener 203 is detachably sleeved on the outer wall of the adapter body 201 to limit the second mounting ring 205 from slipping.
Referring to fig. 17 to 19, the adapter body 201 includes a baffle 2013, wherein a first connecting portion 2011 and a second connecting portion 2012 having hollow tubular structures are respectively formed on two sides of the baffle 2013, and the first connecting portion 2011 and the second connecting portion 2012 are disposed with a central axis; the sleeve 202 and the baffle 2013 are vertically intersected, two ends of the sleeve are respectively and correspondingly arranged in the inner cavities of the first connecting part 2011 and the second connecting part 2012, and the first connecting part 2011 and the second connecting part 2012 can be respectively connected with a connector in a separated mode and conduct between the two connectors through the sleeve 202; the dust cover 204 may be detachably fixed to an end of the first connecting portion 2011, the dust cover 204 and the fastening member 203 may be sequentially sleeved on an outer wall of the second connecting portion 2012, and the second mounting ring 205 connected to the dust cover 204 is fixed between the fastening member 203 and the baffle 2013.
The outer wall of the first connection part 2011 is formed with a second rotation part 2014 protruding radially in an annular shape, three second hook-shaped grooves 2015 extending toward the other end of the second rotation part 2014 are uniformly formed along the front end part of the second rotation part 2014 toward the first connection part 2011, and a second hook part 20151 is formed along the tail end of the second hook-shaped groove 2015 in the track forming direction.
Three cylindrical second limit protrusions 201 are uniformly formed on the inner wall of the dust cover 204, the dust cover 204 moves towards the first connecting portion 2011 until the second limit protrusions 201 correspond to the notch of the second hook-shaped groove 2015 of the second rotating portion 2014, the dust cover 204 is rotated along the axial direction, the second limit protrusions 201 move along the track forming direction of the second hook-shaped groove 2015 to the second hook portion 20151 formed at the tail end of the second limit protrusions, and therefore the dust cover 204 and the first connecting portion 2011 are connected into a whole along the axial direction.
A third flat stage 2016 extending to the outside in the axial direction thereof is formed on the inner wall of the first connecting portion 2011; the first connecting portion 2011 is further formed with a coaxially disposed dust plug 2017, an end portion of the dust plug 2017 extends beyond the first connecting portion 2011, and a second dust socket 2010 extending in an axial direction of the dust plug 2017 is formed inside the dust plug 2017.
Two symmetrically arranged limit clamping blocks 2018 are formed on the inner wall of the first connecting portion 2011, and the limit clamping blocks 2018 are formed in a gap formed between the outer wall of the dustproof plug 2017 and the inner wall of the first connecting portion 2011.
A third connecting portion 2019 coaxially arranged with the first connecting portion 2011 and the second connecting portion 2012 is formed in the middle of the baffle 2013, two ends of the third connecting portion 2019 extend into inner cavities of the first connecting portion 2011 and the second connecting portion 2012 respectively, the third connecting portion 2019 is hollow and tubular, two ends of the third connecting portion 2019 are open, and the sleeve 202 can be detachably and coaxially fixed in the third connecting portion 2019; in addition, it can be understood that a fixing structure for connecting and fixing the conventional connector is formed inside the second connecting portion 2012, and the structure is conventional and will not be repeated herein.
Referring to fig. 20 to 21, in still another embodiment, a waterproof connector assembly includes the waterproof connector 100 and the waterproof adapter 200, and the conventional connector 300, wherein the first connection part 2011 of the waterproof adapter 200 is plugged with the front shell 103 of the waterproof connector 100 in a sealing manner, the second connection part 2012 of the waterproof adapter 200 is plugged with the conventional connector 300 in a sealing manner, and the conventional connector 300 is connected with the waterproof adapter 200 in a conducting manner through the sleeve 202 disposed inside the waterproof adapter 200, so that the optical signal can pass smoothly; the dustproof cover 204 on the waterproof adapter 200 is in airtight plug connection with the cap head 1156 of the dustproof cap 115 of the waterproof connector 100; the first connecting portion 2011 and the second hook-shaped groove 2015 on the waterproof adapter 200 are identical in structure to the cap 1156 and the first hook-shaped groove 1151 on the dust cap 115 of the waterproof connector 100, respectively; the dustproof plug 2017 on the adapter body 201 is in clearance fit plug connection with the inner cavity of the front end of the first inner frame 102 of the waterproof connector 100, and the second dustproof socket 2010 on the adapter body 201 is in clearance fit plug connection with the outer wall of the front end of the second inner frame 104 of the waterproof connector 100.
In summary, the waterproof connector, the adapter and the waterproof connector assembly have the advantages that the waterproof structure capable of guaranteeing the air tightness and the plurality of convenient inserting and pulling and positioning structures are arranged on the waterproof connector, so that the overall waterproof effect of the waterproof connector assembly is greatly enhanced, the waterproof connector assembly is more convenient to install or detach, the inserting and pulling are more convenient, the use cost is effectively low, and the installation efficiency is improved.
While the invention has been described in conjunction with the specific embodiments above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, all such alternatives, modifications, and variations are included within the spirit and scope of the following claims.
Claims (3)
1. The waterproof connector is characterized by comprising a first inner frame, a front shell, a rear shell and a tail sleeve which are sequentially connected into an inner hollow shell along a central axis, wherein a second inner frame, an inserting core, a spring, a sealing rubber ring, a stop seat, a connecting piece, an optical cable, a crimping piece and a heat shrinking tube which are sequentially inserted along the same central axis are also arranged in the inner hollow shell, the outer wall of the tail sleeve is connected with a first dustproof cap through a first connecting piece, and the first dustproof cap is detachably packaged and fixed at an opening in front of the front shell; the front shell is internally provided with an annular elastic piece which can be sleeved outside the first inner frame in a separating way, the tail end of the first inner frame is inserted from the front opening of the front shell and penetrates through the annular elastic piece to extend out of the tail end of the front shell, and the first inner frame is gradually inserted towards the front shell to enable the annular elastic piece to generate stress deformation; the outer wall of the first inner frame, which is close to the front end, is sleeved with a sealing rubber gasket, the sealing rubber gasket is sleeved on the outer wall of the stop seat, the heat shrinkage pipe is tightly wrapped on the outer wall of the joint of the tail end of the stop seat and the optical cable, and the optical cable wrapped with the heat shrinkage pipe extends out from the tail end of the tail sleeve;
the first inner frame is in an inner hollow circular tube shape, a raised annular first baffle ring is formed in the middle of the outer wall of the first inner frame, the outer diameter of the first baffle ring is not larger than the inner diameter of the front shell, and three recessed limit gaps are uniformly formed on the annular side wall of the first baffle ring; the front end outer wall of the first inner frame and the position close to the first baffle ring are provided with a first limit groove which is concaved inwards in an annular mode, and the sealing rubber cushion can be sleeved in the first limit groove in a sealing mode; two limit bayonets which are symmetrically arranged and are recessed towards the direction of the first baffle ring are formed on the front end part of the first inner frame; a first flat platform is formed on the outer wall of the front end of the first inner frame, one end of the first flat platform is connected with the first baffle ring, and the other end of the first flat platform extends to the front end part of the first inner frame; a raised annular limit step is formed on the inner wall of the first inner frame and close to the middle of the first inner frame, a raised strip-shaped boss is formed on the inner wall of the first inner frame and close to the tail end of the first inner frame, one end of the boss is connected with the limit step, and the other end of the boss extends to the tail end of the first inner frame;
the front shell is in an hollow circular tube shape, a raised annular second baffle ring is formed on the inner wall close to the tail end of the front shell, the inner diameter of the second baffle ring is larger than the outer diameter of the first inner frame and smaller than the outer diameter of the first baffle ring, and the annular elastic sheet is propped against between the first baffle ring of the first inner frame and the second baffle ring of the front shell; three cylindrical first limit bumps are uniformly formed on the inner wall close to the middle section of the front shell; an indication block for indicating the rotation direction is formed on the outer wall of the front shell;
the stop seat comprises a first connecting column, a second connecting column and a third connecting column which are sequentially connected along a central axis and are integrally formed; a limiting clamping groove extending along the axial direction of the second connecting column is formed in the outer wall of the second connecting column, the limiting clamping groove is in concave-convex connection with a boss on the inner wall of the tail end of the first inner frame, and the first connecting column is inserted into the limiting clamping groove on the second connecting column from the tail end of the first inner frame to be connected with the boss in a plugging manner so as to limit the continuous insertion and axial rotation of the stop seat; an annular concave mounting groove is formed on the outer wall, close to the second connecting column, of the third connecting column, and the sealing rubber ring can be hermetically sleeved in the mounting groove; the spring is sleeved on the outer wall of the tail end of the lock pin, the tail end of the lock pin sleeved with the spring is inserted into the first connecting column of the stop seat, the front end of the lock pin is fixedly inserted from the tail end of the second inner frame and extends out from the front end of the second inner frame, and the tail end part of the second inner frame is propped against the end face of the second connecting column of the stop seat, which is connected with the first connecting column; the front end of the optical cable is inserted from the tail end of the third connecting column of the stop seat and extends out from the front end of the inserting core;
the rear shell comprises a first connecting end, a second connecting end and a third connecting end which are sequentially connected along a central axis and are integrally formed, the first connecting end and the tail end of the first inner frame are mutually inserted and connected through screw threads in a locking manner, and a second limiting groove which is concavely annular is formed on the outer wall of the third connecting end; the tail sleeve is in a hollow round tube shape, the front end opening of the tail sleeve is larger than the tail end opening, the front end of the tail sleeve is mutually spliced with the third connecting end of the rear shell, an annular convex second limiting ring is formed on the inner wall close to the front end opening of the tail sleeve, the second limiting ring is matched with the second limiting groove to fixedly connect the tail sleeve and the rear shell, and an annular concave third limiting groove is formed on the outer wall of the tail sleeve;
the dustproof cap is in an inner hollow cap shape and is integrally connected with a cap head and a cap tail which are coaxially arranged, the cap head is cylindrical, a first dustproof socket is formed in the cap head, the tail end of the cap tail is airtight, the cap head is inserted into the front shell along a gap between the outer wall of the front end of the first inner frame and the inner wall of the front shell, the front end of the first inner frame is inserted into the first dustproof socket, a second flat platform which extends to the outside along the axial direction of the cap head is formed on the inner wall of the cap head, and the second flat platform is matched with and attached to the first flat platform of the first inner frame so as to fix the cap head and the first inner frame and limit the relative rotation of the cap head and the first inner frame; the outer wall of the cap head is provided with a first rotary part with annular radial protrusions, and three first hook-shaped grooves which extend towards the other end of the first rotary part are uniformly formed on the end part of the first rotary part towards the front end of the cap head; the cap head is inserted into the first limit lug towards the inside of the front shell and corresponds to the notch of the first hook-shaped groove of the first rotating part, the front shell is axially rotated, and the first limit lug moves to the first hook part formed at the tail end of the first hook-shaped groove along the track forming direction of the first hook-shaped groove so as to enable the cap head and the front shell to be axially connected into a whole; the two ends of the first connecting piece are respectively connected with a first mounting ring, and one of the first mounting rings is hooped on the outer wall of the cap tail close to the tail end.
2. A waterproof adapter for connecting the waterproof connector of claim 1, which comprises an adapter body, a sleeve, a dust cover and a fastener, wherein the sleeve is fixed inside the adapter body and is arranged with a central axis of the sleeve, a second mounting ring is hooped on the outer wall of the adapter body, the second mounting ring is connected with the dust cover through a second connecting piece, and the fastener is detachably sleeved on the outer wall of the adapter body to limit the second mounting ring from slipping;
the adapter body comprises a baffle, a first connecting part and a second connecting part which are both of hollow tubular structures are respectively formed on two sides of the baffle, the first connecting part and the second connecting part are arranged with a central axis, the sleeve pipe is vertically intersected with the baffle, two ends of the sleeve pipe are respectively and correspondingly arranged in inner cavities of the first connecting part and the second connecting part, and the first connecting part and the second connecting part are both detachably connected with a connector and conduct between the two connectors through the sleeve pipe; the dustproof cover can be detachably packaged and fixed on the end part of the first connecting part, the dustproof cover and the fastening piece can be sequentially sleeved on the outer wall of the second connecting part, and a second mounting ring connected with the dustproof cover is fixed between the fastening piece and the baffle plate;
a second rotating part with annular radial protrusions is formed on the outer wall of the first connecting part, three second hook-shaped grooves which extend towards the other end of the second rotating part are uniformly formed on the front end part of the second rotating part towards the first connecting part, and a second hook part is formed on the tail end of the second hook-shaped groove in the track forming direction; three cylindrical second limit projections are uniformly formed on the inner wall of the dust cover, the dust cover moves towards the first connecting part until the second limit projections correspond to the notch of the second hook-shaped groove of the second rotating part, the dust cover is axially rotated, and the second limit projections move along the track forming direction of the second hook-shaped groove to the second hook-shaped part formed at the tail end of the second hook-shaped groove so as to enable the dust cover and the first connecting part to be axially connected into a whole; a third flat platform extending to the outside along the axial direction of the first flat platform is formed on the inner wall of the first connecting part; a coaxially arranged dustproof plug is further formed in the first connecting portion, the end portion of the dustproof plug exceeds the outer portion of the first connecting portion, and a second dustproof socket extending along the axial direction of the dustproof plug is formed in the dustproof plug; two limit clamping blocks which are symmetrically arranged are formed on the inner wall of the first connecting part, and the limit clamping blocks are formed in a gap formed between the outer wall of the dustproof plug and the inner wall of the first connecting part; the middle part of baffle be formed with one with the coaxial third connecting portion that sets up of first connecting portion and second connecting portion, the both ends of third connecting portion extend respectively to in the inner chamber of first connecting portion and second connecting portion, third connecting portion are the hollow tubulose of both ends open-ended, the sleeve pipe detachable coaxial fixation is in the third connecting portion.
3. A waterproof connector assembly, characterized in that the waterproof connector assembly comprises the waterproof connector as claimed in claim 1 and the adapter as claimed in claim 2, and a conventional connector, wherein a first connecting part of the adapter is in airtight connection with a front shell of the waterproof connector, a second connecting part of the adapter is in airtight connection with the conventional connector, and a dust cover on the adapter is in airtight connection with a cap head of a dust cap of the waterproof connector; the first connecting part and the second hook-shaped groove on the adapter are respectively identical to the cap head and the first hook-shaped groove on the dustproof cap of the waterproof connector in structure; the dustproof plug on the adapter body is in clearance fit connection with the inner cavity of the front end of the first inner frame of the waterproof connector, and the second dustproof socket on the adapter body is in clearance fit connection with the outer wall of the front end of the second inner frame of the waterproof connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810557184.XA CN108761657B (en) | 2018-06-01 | 2018-06-01 | Waterproof connector, adapter and waterproof connector assembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810557184.XA CN108761657B (en) | 2018-06-01 | 2018-06-01 | Waterproof connector, adapter and waterproof connector assembly |
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| CN108761657A CN108761657A (en) | 2018-11-06 |
| CN108761657B true CN108761657B (en) | 2023-12-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111596414B (en) * | 2019-02-20 | 2022-04-26 | 利佳科技股份有限公司 | Connector system |
| CN110133805A (en) * | 2019-04-18 | 2019-08-16 | 讯达康通讯设备(惠州)有限公司 | A kind of rotary self-locking SC type optical connector and its assembling structure |
| US12061366B2 (en) * | 2019-05-17 | 2024-08-13 | Commscope Technologies Llc | Mechanical connection interface |
| CN110646897A (en) * | 2019-09-27 | 2020-01-03 | 中航光电科技股份有限公司 | Optical fiber connector assembly, optical fiber plug assembly and corresponding adapter |
| CN111061016A (en) * | 2019-12-31 | 2020-04-24 | 宁波日鼎电子科技有限公司 | Optical fiber connector with protective housing |
| CN112284611A (en) * | 2020-11-10 | 2021-01-29 | 成都国光电气股份有限公司 | Full-range vacuum gauge protection device |
| CN114935796B (en) * | 2022-06-09 | 2024-05-28 | 深圳市中为通讯技术有限公司 | Optical fiber SC waterproof connector |
| CN115437080B (en) * | 2022-10-08 | 2023-08-18 | 江苏亨通光电股份有限公司 | Optical cable node connecting device |
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