A kind of waterproof connector for fiber optic protection
Technical field
The invention belongs to fiber optic connection technology fields, more particularly, to a kind of waterproof connector for fiber optic protection.
Background technique
Fibre-optical splice (optical fiber splice), for separable being bound up on for good and all or with opening two optical fiber
Together, it is mainly made of insertion section and receiving unit.With the development of information network, optical fiber has begun access common people
Family, and fibre-optical splice is really connected to the network indispensable part.
Currently, fibre-optical splice be not limited only to optical fiber end use, two optical fiber outdoors the connection in place when,
Need using to water-proof function fibre-optical splice;The leakproofness of waterproof connector is to measure one of the important indicator of its performance.
However the waterproof connector for being currently used for fiber optic protection is all by the way that sealing is arranged between insertion section and the contact face of receiving unit
Pad or sealing ring solve waterproof problem, and this single actual sealing effect of waterproof sealing mode is affected by the external environment
It is larger, it is difficult to the leakproofness of permanently effective fibre-optical splice, to be difficult to ensure network information transmission steady in a long-term.
For this purpose, it is proposed that a kind of waterproof connector for fiber optic protection solves the above problems.
Summary of the invention
Regarding the issue above, the present invention provides a kind of can not only fast implement connection, but also excellent sealing can be carried out
Waterproof connector.
In order to achieve the above objectives, present invention employs following technical proposals: a kind of waterproof connector for fiber optic protection, packet
Insertion section and receiving unit are included, described insertion section one end is connected with input optical fibre, and described receiving unit one end is connected with output optical fibre, institute
Stating insertion section includes first shell and second shell, and the first shell is cylindrical shape, and the first shell is far from second shell
One end be equipped with inside flange, and several jacks are evenly equipped on flange;The second shell is cylinder, the second shell
Be threadedly coupled with first shell, be successively arranged from left to right on the second shell side wall ring-shaped step, it is first annular protrusion and
Second annular protrusion, the second shell are connected with optical fiber pin, the optical fiber pin and output far from one end of output optical fibre
Optical fiber connection;It is cased with spring, first annular plate, the second annular slab and several inserted links on the outside of the ring-shaped step, described
One end of one annular slab offsets with ring-shaped step side wall, and the other end of the first annular plate is connect with spring, the spring
The other end offsets with first annular raised vertical side walls, the end of second annular slab and inserted link with first annular protrusion
Side wall is fixedly connected, and the outside of the second annular slab is arranged in the inserted link, and inserted link is correspondingly arranged with jack position;Described second
Annular element is cased on the outside of annular protrusion, the section of the annular element is wedge shaped, the small head end of the annular element and the second annular slab
Inner ring wall be fixedly connected, the stub end of the annular element and the collar wall of the second annular protrusion offset, the annular element it is outer
Side be equipped with seal assembly, the seal assembly by a section wedge shaped sealing shroud and a rectangular in cross-section sealing ring group
At the sealing ring is connected to the outside of sealing shroud, and the collar wall of sealing shroud one end and the second annular protrusion is tightly connected;
Two limiting slots are equipped on the outer wall of the first shell in parallel, the outer wall of the second shell is equipped with annular slot, and ring
Shape card slot is arranged close to limiting slot;One end face of the receiving unit is equipped with the first cylindrical groove being recessed inwardly, first cylindricality
The bottom surface of slot is equipped with the second cylindrical groove being recessed inwardly, and is embedded on the bottom surface of second cylindrical groove matched with optical fiber pin
Optical fiber slot, the optical fiber slot are connect with output optical fibre, the receiving unit far from be connected on an end face of output optical fibre with
The matched limit lath of limiting slot, and two pieces of opposite sides of the limit lath are connected with and the matched fixture block of annular slot.
In the above-mentioned waterproof connector for fiber optic protection, the first shell is equal with the outer diameter value of second shell,
The surface of the ring-shaped step is equipped with external screw thread, and inner wall of the second shell close to first shell one end is equipped with internal screw thread, institute
Second shell is stated to be threadedly coupled with ring-shaped step.
In the above-mentioned waterproof connector for fiber optic protection, the inner diameter values of second cylindrical groove are slightly larger than sealing shroud
Outer diameter value.
In the above-mentioned waterproof connector for fiber optic protection, the sealing shroud one end passes through sealant and the second annular
The collar wall of protrusion is adhesively fixed.
In the above-mentioned waterproof connector for fiber optic protection, the maximum outside diameter value of the annular element is less than the internal diameter of flange
Value.
In the above-mentioned waterproof connector for fiber optic protection, the inclined-plane on sealing shroud is close on the inclined-plane on the annular element
Setting.
In the above-mentioned waterproof connector for fiber optic protection, one end of the inserted link sequentially passes through jack and annular element
On aperture and extend outwardly.
The present invention is used for the advantages of waterproof connector of fiber optic protection and is compared with prior art: 1, due to by insertion section
Be made of first shell and second shell so that form installation cavity therebetween, can be used for installing spring and first annular plate,
The linkage mechanism of second annular slab, inserted link and annular element composition, reduces the difficulty of insertion section assembling;2, and then reduction optical fiber connects
The cost of the manufacturing of head;3, by the way that flange is arranged on the first shell, setting passes through jack for inserted link on flange, and inserts
Bar is connect with the linkage mechanism inside insertion section, after insertion section is connect with receiving unit, sealing shroud may make to expand around, in turn
The cylindrical contact face of insertion section and receiving unit is sealed;4, the present invention can quickly be connect in guarantee insertion section with receiving unit
Under the premise of, effectively raise the waterproof performance of fibre-optical splice.
Detailed description of the invention
Fig. 1 is a kind of external structure schematic diagram of waterproof connector for fiber optic protection provided by the invention;
Fig. 2 is a kind of perspective view of waterproof connector for fiber optic protection provided by the invention;
Fig. 3 is the perspective view of first shell in a kind of waterproof connector for fiber optic protection provided by the invention;
Fig. 4 is the perspective view of second shell in a kind of waterproof connector for fiber optic protection provided by the invention;
Fig. 5 is the partial enlarged view in Fig. 2 at A.
In figure, 1 insertion section, 2 receiving units, 3 input optical fibres, 4 output optical fibres, 5 first shells, 6 second shells, 7 flange, 8
Jack, 9 ring-shaped steps, 10 first annular protrusions, 11 second annular protrusions, 12 optical fiber pins, 13 springs, 14 first annular plates,
15 second annular slabs, 16 inserted links, 17 annular elements, 18 sealing shrouds, 19 sealing rings, 19 inserted blocks, 20 limiting slots, 21 annular slots, 22
First cylindrical groove, 23 second cylindrical grooves, 24 optical fiber slots, 25 limit laths, 26 fixture blocks.
Specific embodiment
Following embodiment only exists in illustrative purpose, limits the scope of the invention without being intended to.
Embodiment
As shown in Figs. 1-5, a kind of waterproof connector for fiber optic protection, including insertion section 1 and receiving unit 2, insertion section 1 one
End is connected with input optical fibre 3, and 2 one end of receiving unit is connected with output optical fibre 4, and insertion section 2 includes first shell 5 and second shell 6,
First shell 5 is cylindrical shape, and first shell 5 is equipped with inside flange 7 far from one end of second shell 6, and is evenly equipped on flange 7
Several jacks 8.
Specifically, second shell 6 is cylinder, second shell 6 is threadedly coupled with first shell 5, on 6 side wall of second shell
It is successively arranged the annular protrusion 11 of ring-shaped step 9, first annular raised 10 and second from left to right, second shell 6 is far from output light
One end of fibre 4 is connected with optical fiber pin 12, and optical fiber pin 11 is connect with output optical fibre 4.
Wherein, the outside of ring-shaped step 9 is cased with spring 13, first annular plate 14, the second annular slab 15 and several inserted links
16, one end and 9 side wall of ring-shaped step of first annular plate 14 offset, and the other end of first annular plate 14 is connect with spring 13, bullet
The other end of spring 13 offsets with first annular raised 10 vertical side walls, the end of the second annular slab 15 and inserted link 16 with the first ring
The side wall of shape protrusion 10 is fixedly connected, and the outside of the second annular slab 15 is arranged in inserted link 16, and inserted link 16 is corresponding with 8 position of jack
Setting.
Specifically, the outside of the second annular protrusion 11 is cased with annular element 17, the section of annular element 17 is wedge shaped, annular element 17
Small head end is fixedly connected with the inner ring wall of the second annular slab 15, the collar wall of the stub end of annular element 17 and the second annular protrusion 11
It offsets, the linkage mechanism that spring 13 and first annular plate 14, the second annular slab 15, inserted link 16 and annular element 17 form, wherein
Spring 13 can play the role of reset;The outside of annular element 17 is equipped with seal assembly, and seal assembly is wedge shaped by a section
The sealing ring 19 of sealing shroud 18 and rectangular in cross-section composition, sealing ring 20 are connected to the outside of sealing shroud 18, and sealing shroud
The collar wall of 18 one ends and the second annular protrusion 11 is tightly connected.
More specifically, two limiting slots 20 are equipped on the outer wall of first shell 5 in parallel, the outer wall of second shell 6 is equipped with
Annular slot 21, and annular slot 21 is arranged close to limiting slot 20.
One end face of receiving unit 2 is equipped with the first cylindrical groove 22 being recessed inwardly, and the bottom surface of the first cylindrical groove 22 is equipped with inside
Second cylindrical groove 23 of recess is embedded with and the matched optical fiber slot 24 of optical fiber pin 12, light on the bottom surface of the second cylindrical groove 23
Fine slot 24 is connect with output optical fibre 4, and receiving unit 2 is matched with limiting slot 20 far from being connected on an end face of output optical fibre 4
Limit lath 25, and two pieces of opposite sides of limit lath 25 be connected with the matched fixture block 26 of annular slot 21, when receiving unit 2
After connecting with insertion section 1, fixture block 26 is caught in just in annular slot 21, is detached from after avoiding the two from connecting.
The present invention is by being arranged to first shell 5 and second shell 6 for insertion section 1, in order to what is formed between
The linkage mechanism that installation spring 13 and first annular plate 14, the second annular slab 15, inserted link 16 and annular element 17 form in cavity,
By the way that flange 7 is arranged in first shell 5, and it is arranged on flange 7 and passes through jack 8 for inserted link 15, when receiving unit 2 and insertion section
During 1, receiving unit 2 is pressed into inserted link 15, while inserted link 15 drives annular element 17 to drop back, and annular element 17 can during dropping back
So that sealing shroud 18 is expanded around, the sealing shroud 18 after expansion can carry out the cylindrical contact face of insertion section 1 and receiving unit 2
Quickly and effectively seal.
Although insertion section 1, receiving unit 2, input optical fibre 3, output optical fibre 4, first shell 5, is used more herein
Two shells 6, flange 7, jack 8, ring-shaped step 9, first annular raised 10, second annular protrusion 11, optical fiber pin 12, spring
13, first annular plate 14, the second annular slab 15, inserted link 16, annular element 17, sealing shroud 18, sealing ring 19, inserted block 19, limiting slot
20, annular slot 21, the first cylindrical groove 22, the second cylindrical groove 23, optical fiber slot 24, the limit terms such as lath 25 and fixture block 26,
But it does not exclude the possibility of using other terms.The use of these items is only for be more convenient to describe and explain the present invention
Essence;Being construed as any additional limitation is disagreed with spirit of that invention.