CN217085322U

CN217085322U - LC thermal shrinkage-free fusible connector

Info

Publication number: CN217085322U
Application number: CN202220812622.4U
Authority: CN
Inventors: 王跃华; 高峥嵘; 周万波
Original assignee: Shanghai Guangyantong Photoelectric Technology Co ltd
Current assignee: Shanghai Guangyantong Photoelectric Technology Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-07-29
Anticipated expiration: 2032-03-31

Abstract

The utility model relates to the technical field of optical fiber communication, and discloses an LC thermal shrinkage-free fusible connector, which comprises a sleeve shell, a ceramic ferrule, a preset bare fiber to be fused, an optical fiber protective sleeve, an optical cable, a spring, a main cavity body, a wing-shaped protective piece and a protective layer, wherein the spring is positioned on the outer side of the optical fiber protective sleeve, the optical fiber protective sleeve is positioned on the right side of the ceramic ferrule, the optical fiber protective sleeve, the preset bare fiber to be fused and the spring are all positioned inside the sleeve shell, and the optical cable, the wing-shaped protective piece and the protective layer are all positioned inside the main cavity body. The connection effect is optimized, and the optical fiber transmission loss is greatly reduced.

Description

LC thermal shrinkage-free fusible connector

Technical Field

The utility model belongs to the technical field of the optical fiber communication, specifically be a LC exempts from pyrocondensation fusible type connector.

Background

After the existing fusion-type optical fiber connectors are fused, heat-shrinkable tubes are adopted for protection. The operation steps are that after the fusion-type optical fiber connector is in butt joint with a soft optical cable or a butterfly optical cable and the like, fusion welding operation is carried out through an optical fiber fusion splicer, and the method comprises the following steps: the optical fiber welding machine comprises an optical fiber welding machine, a sliding block, a heat-shrinkable sleeve and a heat-shrinkable sleeve, wherein the two cut optical fiber end parts of the two optical fibers are placed in a V-shaped groove of an optical fiber clamp of the optical fiber welding machine, which need to be connected, the two optical fibers pass through the optical fiber clamp fixing positions of the optical fiber welding machine, the two optical fiber cutting ends are close to electrode pins of the optical fiber welding machine, during welding operation, the sliding block controlling the lower side of the optical fiber clamp drives the two optical fiber end parts to be close to each other, welding operation is completed, after welding is completed, the heat-shrinkable sleeve is sleeved with the welded optical fibers, the heat-shrinkable sleeve is heated through an external heating furnace, and welding points are protected after the heat-shrinkable sleeve is shrunk.

When the two parts of optical fibers which are welded are all bare fibers, the success rate of the above operations is high, if the two parts of optical fibers which are welded with a butterfly-shaped leather wire or a soft cable jumper through various connectors such as SC, ST, FC, LC and the like, or the butterfly-shaped leather wire is welded with the soft cable jumper, because the outer layer protection of the welded optical fibers has a large outer diameter for the optical fibers of 0.125um and the self weight of the tail fiber connector, when the heat-shrinkable sleeve is sleeved after the welding is finished, two hands are required to hold the two parts which are welded at the same time, the clamp is separated, then the heat-shrinkable sleeve is moved to a welding point by using two small fingers of one hand, so that the two hands which are occupied originally are required to separate two fingers to move the sleeve, and the welding point of the optical fibers which are welded just is easy to be broken.

After the existing optical fiber connector sleeves a heat-shrinkable sleeve in the connection process, the heat-shrinkable sleeve is required to be placed into a heating groove to complete the heat-shrinkable process, so that the optical fiber is easily disconnected again, the whole process is complicated, the number of human influence factors is too large, the success rate of welding is greatly reduced, and therefore the LC thermal-shrinkable fusible connector is provided.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a LC exempts from pyrocondensation fusible type connector, effectual solved current fiber connector in the connecting process with the pyrocondensation sleeve pipe cover the back, still need to put into it and accomplish the pyrocondensation process in the heating bath, very easily lead to cause optic fibre to break off once more, whole process procedure is numerous and diverse, it is too much to involve artificial influence factor, greatly reduced welded success rate, for this reason, we propose a LC exempts from pyrocondensation fusible type connector's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pyrocondensation fusible type connector is exempted from to LC, includes cover shell, ceramic lock pin, presets and waits to melt naked fibre, optic fibre protective sheath, optical cable, spring, the main cavity body, airfoil shape protection piece and protective layer, the spring is located the outside of optic fibre protective sheath, the optic fibre protective sheath is located the right side of ceramic lock pin, pottery lock pin, optic fibre protective sheath, presetting wait to melt the inside that naked fibre, spring all are located the cover shell, optic cable, airfoil shape protection piece and protective layer all are located the inside of the main cavity body, the right side of cover shell is connected with the left side of the main cavity body.

Preferably, a clamping cap is arranged on the outer side of the ceramic core insert, and the wing type protection piece is connected with the ceramic core insert through the clamping cap.

Preferably, the outside of cover shell is provided with the buckle, the inner wall of main cavity body is provided with the draw-in groove with buckle assorted.

Preferably, the right side of the main cavity body is provided with threads, and the right side of the main cavity body is connected with a spiral tail cap.

Preferably, a dust cap is connected to the left side of the casing.

Preferably, the upper side of the sleeve is connected with a clamping block.

Compared with the prior art, the beneficial effects of the utility model are that:

1. after the optical fibers are welded, the optical fibers are not required to be sheathed with a heat-shrinkable tube for protection and then transferred to a heating furnace for heat-shrinkable tube heating for protecting the welded part, but the wing-shaped protection device is directly folded to press and protect the welded part of the optical fibers to complete the connection, so that the field operation is more convenient, the fiber breakage rate caused by the process factors of transfer, heat shrinkage and the like after the welding is reduced, the connection effect is optimized, and the optical fiber transmission loss is greatly reduced;

2. compared with the existing welding method, the method saves the step of sleeving a heat-shrinkable sleeve and the step of transferring the welded component to a heating furnace, and the two steps are main reasons for breaking the optical fiber, so that the success rate of welding is greatly improved;

3. the whole process is simple to operate, and the working efficiency is high;

4. the method for protecting the well-welded part of the optical fiber by using the protective layer replaces the traditional method for protecting the well-welded part of the optical fiber by using the heat-shrinkable tube, is simple, convenient and efficient, and has simple operation and high working efficiency in the whole process;

5. but the structure of multiple model optical cable of wing protective housing afterbody centre gripping improves the stability of this device.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the casing of the present invention;

fig. 3 is a schematic view of the structure of the main cavity of the present invention.

In the figure: 110. a dust cap; 120. a housing; 130. a ceramic ferrule; 131. a clamping cap; 132. presetting bare fiber to be fused; 140. an optical fiber protective sheath; 150. an optical cable; 160. a spring; 170. a main chamber; 180. a wing section protector; 190. a protective layer; 200. a spiral tail cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an LC thermal shrinkage free fusible connector includes a housing 120, a ferrule 130, a pre-installed bare fiber 132 to be fused, an optical fiber protective sleeve 140, an optical cable 150, a spring 160, a main housing 170, a wing type protective member 180, and a protective layer 190, where the protective layer 190 is made of plastic, silicone rubber, adhesive, ceramic, etc., the spring 160 is located outside the optical fiber protective sleeve 140, the optical fiber protective sleeve 140 is located on the right side of the ferrule 130, the optical fiber protective sleeve 140, the pre-installed bare fiber 132 to be fused, and the spring 160 are all located inside the housing 120, the optical cable 150, the wing type protective member 180, and the protective layer 190 are all located inside the main housing 170, and the right side of the housing 120 is connected to the left side of the main housing 170.

Referring to fig. 1-3, a clamping cap 131 is disposed on the outer side of the ferrule 130, the clamping cap 131 is disposed on the right side of the ferrule 130, the wing-type protection member 180 is connected to the ferrule 130 through the clamping cap 131, the wing-type protection member 180 is connected to the ferrule 130 by the clamping cap 131, a buckle is disposed on the outer side of the housing 120, a clamping groove matched with the buckle is disposed on the inner wall of the main cavity 170, the main cavity 170 is connected to the housing 120 by the buckle, the right side of the main cavity 170 is threaded, the right side of the main cavity 170 is connected to a spiral tail cap 200, the connected optical cable 150 can be limited by the spiral tail cap 200, when the optical cable 150 is moved outside the main cavity, the optical cable 150 is fixed in an auxiliary manner, the connection of the housing 150 is prevented from being damaged, the dust cap 110 is connected to the left side of the optical cable 120, the dust cap 110 is made of rubber, can carry on spacingly to optical cable 150 one end through setting up dust cap 110, when avoiding optical cable 150 one end dust to get into this device inside through-hole on the left of cover 120, avoid optical cable 150 to be worn out by cover 120, the upside of cover 120 is connected with the fixture block, through setting up the fixture block, is convenient for be connected and fix cover 120 and external device.

The working principle is as follows: in the specific implementation of the invention, the wing-type protection element 180 is connected with the right end of the ferrule 130 through a clamping groove, the wing-type protection element 180 has two wings, the ferrule 130 is internally provided with a pre-arranged bare fiber to be melted with a coating layer, the rear end of the optical fiber is stripped of part of the coating layer and the end surface is cut, the ferrule 130 is arranged in the casing 120, the rear part of the ferrule 130 is provided with an optical fiber protection sleeve 140, the outer side of the optical fiber protection sleeve 140 is provided with a spring 160, the ferrule 130, the optical fiber protection sleeve 140 and the spring 160 are arranged in the casing 120 and then inserted into the main cavity 170, the main cavity 170 and the casing 120 are buckled, so as to form a whole, the wing-type protection element 180 is adhered with a protection layer 190 for protecting the optical fiber, the optical fiber protection sleeve 140 is sleeved outside, the spiral tail cap 200 is screwed on the main cavity 170 to clamp the wing-type protection element 180 and fix the rear end optical fiber after the fusion splicing of the fusion splicing type optical fiber and the pigtail is completed, in the using process, the spiral tail cap 200 and the main cavity 170 are sleeved at the rear end of the optical cable 150 which is pre-welded with the welding type optical fiber connector for standby, the optical cable 150 can be a butterfly rubber wire, a soft optical cable and the like, the optical cable 150 is placed on a welding machine clamp to be compressed, the welding type optical fiber connector wing-shaped protection piece 180 is opened and is placed on the other clamp of the welding machine to be compressed, a welding procedure is started, the optical fiber at the tail part of the welding type optical fiber connector and the optical cable 150 are welded well, the two clamps of the welding machine are lifted at the same time after welding, after the clamps are lifted, the two wing-shaped protection pieces 180 are folded and compressed by hands, the welded optical fiber part is fully protected, the upper covers of the two clamps are opened, the protected optical fiber is taken out, the main cavity 170 is sleeved, the spiral tail cap 200 is screwed, and the whole welding process is completed.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, and the terms "comprise", "include", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus, and the terms "mount", "connect", or "connect" should be interpreted broadly unless expressly specified or limited to the contrary and may be fixed or removable, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or the two elements may be connected through an intermediate medium, and the specific meaning of the above terms in the present invention can be understood by those skilled in the art through specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An LC thermal shrinkage free fusible connector, characterized in that: including cover sleeve (120), ceramic lock pin (130), preset and wait to melt bare fiber (132), optic fibre protective sheath (140), optical cable (150), spring (160), main cavity (170), wing type protection piece (180) and protective layer (190), spring (160) are located the outside of optic fibre protective sheath (140), optic fibre protective sheath (140) are located the right side of ceramic lock pin (130), optic fibre protective sheath (140), preset wait to melt bare fiber (132), spring (160) all are located the inside of cover sleeve (120), optical cable (150), wing type protection piece (180) and protective layer (190) all are located the inside of main cavity (170), the right side of cover sleeve (120) is connected with the left side of main cavity (170).

2. The LC heat shrink free fusible type connector of claim 1, wherein: the outer side of the ceramic ferrule (130) is provided with a clamping cap (131), and the wing type protection piece (180) is connected with the ceramic ferrule (130) through the clamping cap (131).

3. The LC heat shrink free fusible type connector of claim 1, wherein: the outside of cover shell (120) is provided with the buckle, the inner wall of main cavity (170) is provided with the draw-in groove with buckle assorted.

4. The LC heat shrink free fusible type connector of claim 1, wherein: the right side of the main cavity (170) is provided with threads, and the right side of the main cavity (170) is connected with a spiral tail cap (200).

5. The LC heat shrink free fusible type connector of claim 1, wherein: the left side of the ceramic ferrule (130) is connected with a dust cap (110).

6. The LC heat shrink free fusible type connector of claim 1, wherein: the upper side of the sleeve (120) is connected with a fixture block.