CN216848250U - LC hot melt type optical fiber quick connector - Google Patents

Abstract

The application discloses an LC hot-melt type optical fiber quick connector, and relates to the technical field of optical fiber connection; the front shell, the core inserting assembly and the tail shell assembly are included; the front shell is connected with the tail shell assembly and is matched with the tail shell assembly to form an accommodating space for accommodating the ferrule assembly; the tail shell assembly comprises an elastic module which limits the ferrule assembly to be far away from the front shell along the axial direction of the ferrule assembly; adopt the technical scheme that this application provided to solve current LC hot melt type optic fibre quick connector equipment inconvenient, the lower technical problem of efficiency.

Description

LC hot melt type optical fiber quick connector

Technical Field

The application relates to the technical field of optical fiber connection, in particular to an LC hot-melt type optical fiber quick connector.

Background

LC-structured fiber optic connectors have the characteristics of small size and the ability to handle high density panels and more core connections. And its size is little (2 device center-to-center distances 6.25mm of duplex LC adapter international standard), and the LC hot melt type quick connector that can convenient and fast connect the equipment on the market at present is rare, and certain inconvenience can appear when the equipment in most LC hot melt type quick connector to influence packaging efficiency.

SUMMERY OF THE UTILITY MODEL

This application aim at provides an LC hot melt type optic fibre quick connector, adopts the technical scheme that this application provided to solve current LC hot melt type optic fibre quick connector equipment inconvenient, the lower technical problem of efficiency.

In order to solve the technical problem, the application provides an LC hot-melt type optical fiber quick connection device, which comprises a front shell, a ferrule assembly and a tail shell assembly;

the front shell is connected with the tail shell assembly and is matched with the tail shell assembly to form an accommodating space for accommodating the ferrule assembly;

the tail shell assembly comprises an elastic module which limits the ferrule assembly to be far away from the front shell along the axial direction of the ferrule assembly;

in the implementation process, the plug core assembly can be preassembled by a factory, in field installation, after an operator performs fiber melting and thermal shrinkage, the plug core assembly is installed into the front shell, and then the tail shell assembly is aligned to the front shell to realize rapid splicing; the elastic module is in a stable assembly state, when the ferrule assembly is stressed, the elastic force of the elastic module can enable the ferrule assembly and the other ferrule to be connected to realize pressure tightening, so that the stable connection of the ferrule assembly and the other ferrule is ensured; this application will be connected and divide into several modules before, can realize the high-efficient equipment in scene, and built-in elasticity module is also when guaranteeing to connect stably, has also avoided the condition that the spring loses to appear in the field assembly, uses more convenient and fast.

Preferably, the elastic module comprises an abutting piece and an elastic piece;

one end of the elastic piece is abutted against the inner cavity of the tail shell assembly, and the other end of the elastic piece is abutted against the abutting piece;

the abutting part abuts against one end of the ferrule assembly;

in the implementation process, one end of the elastic piece is abutted against the inner cavity of the tail shell assembly and sequentially serves as an abutting point, and the other end of the elastic piece is abutted against the abutting piece; when the ferrule assembly is stressed, the elastic piece is compressed through the transmission of the abutting piece and the elastic piece, the elastic force of the elastic piece acts on the ferrule assembly through the abutting piece, the ferrule assembly can be in pressure tightening with the external ferrule, and stable connection is guaranteed.

Preferably, one end of the abutting part close to the elastic part is provided with an annular plane, and the outer diameter of the annular plane is larger than that of the other end of the abutting part;

in the implementation process, due to the design of the annular plane, the abutting part can ensure that the embedded optical fiber can be smoothly inserted, and meanwhile, the function of the elastic part of the abutting surface can be sufficient.

Preferably, the tail shell assembly further comprises a transition piece, and a first fixture block and a second fixture block are formed on the outer side wall of the transition piece;

the first fixture block and the second fixture block are respectively close to the front shell and far away from the front shell;

preferably, the tail shell assembly further comprises a tail shell body connected with the transition piece, and a visible area is formed on the tail shell body;

the visible area is made of transparent materials;

in the implementation process, the front shell is rapidly spliced with the transition piece through the first fixture block on the transition piece, and the tail shell is rapidly spliced with the transition piece through the second fixture block on the transition piece; in addition, the design has higher universality and wider application range, can be applied to various scenes, and realizes flexible adjustment; the visible area on the tail shell can be used for an operator to quickly detect the butt joint effect of the molten fibers, a laser pen can be used for detecting the butt joint effect of the molten fibers immediately after the molten fibers are assembled, and if the molten fibers are poor or broken, or the broken fibers can leak red light at the welding point; if no red light leaks, the fused fiber is judged to be good.

Preferably, the aft shell is connected to the transition piece;

a second clamping groove matched with the second clamping block is formed in the tail shell;

in the implementation process, the second clamping block can be clamped into the second clamping groove, so that the tail shell and the transition piece can be quickly spliced.

Preferably, the ferrule assembly comprises a ferrule main body, a tail handle and a nail tube which are connected in sequence;

the embedded optical fiber is assembled in the ferrule assembly;

in the implementation process, the pre-buried optical fiber is arranged on the ferrule assembly, the fiber can be pre-stripped in a factory, and the splicing can be directly carried out on site, so that the fiber stripping and cutting treatment on the site is not needed, the working efficiency is improved, and the fiber breakage rejection rate is reduced.

Preferably, a third clamping groove is formed in the tail handle, and the nail tube is detachably embedded into the third clamping groove;

at above-mentioned realization in-process, quick batch production can be realized to the nail pipe, through the structural mode of nail pipe embedding caudal peduncle, can reduce the die sinking degree of difficulty and the degree of difficulty of moulding plastics of caudal peduncle, reduces the defective rate, promotes production efficiency.

Preferably, a through groove penetrates through the nail tube along the axial direction of the nail tube, and one end, close to the front shell, of the through groove is open and is provided with a guide surface;

at above-mentioned realization in-process, lead to the groove and can supply optic fibre to pass, do uncovered form design through further structure to the nail pipe to being equipped with the spigot surface and leading, can further promoting optic fibre to enter into leading to the groove, when guaranteeing that optic fibre can get into smoothly and realize follow-up butt joint in leading to the groove, the effectual whole production degree of difficulty that reduces.

Preferably, a first clamping groove matched with the first clamping block is formed in the front shell;

in the implementation process, the front shell and the transition piece are rapidly spliced through the first clamping block and the first clamping groove.

Compared with the prior art, the beneficial effect of this application lies in: this application will be connected and divide into several modules before, can realize the high-efficient equipment in scene, and built-in elasticity module is also when guaranteeing to connect stably, has also avoided the condition that the spring loses to appear in the field assembly, uses more convenient and fast.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic diagram of the overall structure of one embodiment of the present application;

FIG. 2 is a schematic illustration of an exploded structure of one embodiment of the present application;

FIG. 3 is a schematic diagram of the overall structure of one embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of the structure of FIG. 3;

FIG. 5 is an enlarged view of the structure of portion A of FIG. 4;

FIG. 6 is a schematic diagram of a portion of one embodiment of the present application;

FIG. 7 is an enlarged schematic view of the structure of portion B of FIG. 6;

FIG. 8 is a schematic diagram of a portion of one embodiment of the present application;

FIG. 9 is a schematic structural view of a nail tube according to one embodiment of the present application;

wherein: 10. a front housing; 11. a first card slot; 20. a ferrule assembly; 21. a ferrule body; 22. a tail handle; 22. a third card slot; 23. a nail tube; 231. a through groove; 232. a guide surface; 24. pre-burying an optical fiber; 25. A silicone tube; 30. a tail housing assembly; 31. a transition piece; 311. a first clamping block; 312. a second fixture block; 32. An elastic module; 321. an abutting member; 322. an elastic member; 33. a tail housing; 331. a visible area; 332. a second card slot; 34. a tail sleeve; 35. and (7) heat-shrinkable tubes.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the application. That is, in some embodiments of the present application, such practical details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

It should be noted that all the directional indications such as up, down, left, right, front and rear … … in the embodiment of the present application are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in this application are used for descriptive purposes only, are not specifically intended to be in an orderly or sequential sense, and are not intended to limit the present application, but are merely used for distinguishing components or operations described in the same technical terms, and are not intended to indicate or imply relative importance or implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

For further understanding of the contents, features and functions of the present invention, the following embodiments are exemplified in conjunction with the accompanying drawings and the following detailed description:

examples

LC-structured fiber optic connectors have the characteristics of small size and the ability to handle high density panels and more core connections. The size of the connector is small (the distance between centers of 2 devices in the international standard of a duplex LC adapter is 6.25mm), LC hot-melt type quick connectors which can be conveniently and quickly connected and assembled in the current market are rare, and most of the LC hot-melt type quick connectors are inconvenient to some extent during assembly, so that the assembly efficiency is influenced;

in order to solve the above technical problem, the present embodiment provides the following technical solutions:

specifically, referring to fig. 1 to 9, the present embodiment provides an LC hot-melt optical fiber quick connector, which includes a front shell 10, a ferrule assembly 20, and a tail shell assembly 30;

specifically, the front shell 10 is connected with the tail shell assembly 30 and is matched with the tail shell assembly to form an accommodating space for accommodating the ferrule assembly 20;

further, the tail housing assembly 30 includes an elastic module 32, and the elastic module 32 limits the ferrule assembly 20 from moving away from the front housing 10 along the axial direction thereof;

in the scheme, the core insert assembly 20 can be preassembled by a factory, in field installation, after an operator performs molten fiber thermal shrinkage, the core insert assembly 20 is installed into the front shell 10, and then the tail shell assembly 30 is aligned with the front shell 10 to realize quick splicing; the elastic module 32 is in a stable assembly state, and when the ferrule assembly 20 is stressed, the elastic force of the elastic module 32 can enable the ferrule assembly 20 and another ferrule to be connected to realize pressure tightening, so that the stable connection between the ferrule assembly 20 and the another ferrule is ensured; this application will be connected and divide into several modules before, can realize the high-efficient equipment in scene, and built-in elasticity module 32 has also avoided the condition that the spring loses to appear in the field assembly when guaranteeing to connect stably, uses more convenient and fast.

It should be noted that, the connection described in this embodiment may be a detachable connection;

further, the elastic module 32 includes an abutting member 321 and an elastic member 322;

specifically, referring to fig. 3, one end of the elastic element 322 abuts against the inner cavity of the tail shell assembly 30, and the other end abuts against the abutting element 321;

further, the abutting member 321 abuts against one end of the ferrule assembly 20;

in the above solution, one end of the elastic element 322 abuts against the inner cavity of the tail shell assembly 30, and is sequentially an abutting point, and the other end abuts against the abutting element 321; when the ferrule assembly 20 is stressed, the elastic member 322 is compressed by the abutting member 321 being conducted to the elastic member 322, and the elastic force of the elastic member 322 acts on the ferrule assembly 20 through the abutting member 321, so that the ferrule assembly 20 can be pressed tightly against an external ferrule, thereby ensuring stable connection.

Specifically, referring to fig. 3, an annular plane is formed at one end of the abutting member 321 close to the elastic member 322, and the outer diameter of the annular plane is larger than that of the other end of the abutting member 321;

in the above-mentioned solution, by the design of the annular plane, the abutting piece 321 can provide a sufficient abutting surface working elastic piece 322 function while ensuring that the embedded optical fiber 24 can be smoothly inserted.

Specifically, the tail shell assembly 30 further includes a transition piece 31, and a first latch 311 and a second latch 312 are formed on an outer side wall of the transition piece 31;

further, the first latch 311 and the second latch 312 are close to the front case 10 and far from the front case 10, respectively.

Further, the aft shell assembly 30 also includes an aft shell 33 coupled to the transition piece 31;

in the above solution, the front shell 10 is quickly spliced with the transition piece 31 through the first fixture block 311 on the transition piece 31, and the rear shell 33 is quickly spliced with the transition piece 31 through the second fixture block 312 on the transition piece 31; in addition, the design has higher universality and wider application range, can be applied to various scenes, and realizes flexible adjustment.

After optical fiber is welded, the welding condition of the optical fiber is required to be detected, a light source and an optical power meter are required to be used for traditional detection, the two ends of the molten fiber are required to be respectively connected with a light source and an optical power meter port, the molten fiber effect can be detected, the detection process is very inconvenient, the working efficiency is influenced, and the following technical scheme is provided in order to solve the technical problem:

specifically, referring to fig. 3, a visible area 331 is formed on the tail housing 33;

further, the visible area 331 is made of a transparent material;

in the above scheme, the visual area 331 on the tail shell 33 can allow an operator to quickly detect the butt joint effect of the melt fiber, and after the melt fiber is assembled, a laser pen can be used to detect the effect of the melt fiber immediately, and if the melt fiber is bad or broken, or the split fiber has red light leakage at the welding point; if no red light leaks, the fused fiber is judged to be good.

Further, in some embodiments, the rear shell 33 is made of transparent plastic, and has an inner bright surface and a spark-patterned surface at other positions outside, and the transparent bright surface with mirror-polished surface of the mold is disposed near the welding point to form a transparent ring-shaped viewing window, i.e., the viewing area 331.

Further, the viewing area 331 may be annular, i.e., an annular area is formed around the weld; or partially visible, such as partially visible on a single side.

Specifically, the aft case 33 is coupled to the transition piece 31;

further, a second locking groove 332 adapted to the second locking block 312 is formed on the tail housing 33;

in the above solution, the second latch 312 may be latched into the second latch slot 332, so as to achieve quick connection between the tail shell 33 and the transition piece 31.

Specifically, referring to fig. 2 and 4, the ferrule assembly 20 includes a ferrule main body 21, a tail handle 22 and a nail tube 23 connected in sequence;

further, a pre-buried optical fiber 24 is assembled in the ferrule assembly 20;

in the above scheme, through being provided with pre-buried optic fibre 24 on lock pin subassembly 20, mill can realize shelling the fibre in advance, can directly carry out the butt fusion at the scene to need not to shell the fine processing of cutting of fine again at the scene, promote work efficiency, reduce disconnected fine disability rate.

Further, the ferrule body 21 is made of a ceramic material, and the ferrule body 21 is previously subjected to UPC or APC surface grinding.

Furthermore, in the present application, because the smaller diameter of the ferrule assembly 20 and the heat shrinkable tube 35 is smaller, the ferrule assembly can enter the heat shrinkage bin of any optical fiber fusion splicer, and the heat shrinkable tube 35(30mm in length) can be placed in the middle of the heat shrinkage bin, so as to achieve a heat shrinkage yield of 100% (the temperature in the middle is more accurate, and the temperature of 2 edges of the heat shrinkage bin is mostly lower); however, in the case of designing one end of the heat shrinkable tube 35 close to the edge, the heat shrinkage yield of the heat shrinkable tube 35 close to the edge cannot reach 100%, and most of the reasons that the heat shrinkable tube 35 has a problem at the fusion point within several months after the optical fiber is fused are poor in heat shrinkage.

Specifically, referring to fig. 8-9, a third slot 22 is formed on the tail handle 22, and the nail tube is detachably inserted into the third slot 22;

in above-mentioned scheme, quick batch production can be realized to the nail pipe, through the structural mode of nail pipe embedding caudal peduncle 22, can reduce caudal peduncle 22's the die sinking degree of difficulty and the degree of difficulty of moulding plastics, reduces the defective rate, promotes production efficiency.

Further, a through groove 231 is formed in the nail tube in a penetrating manner along the axial direction of the nail tube, and one end of the through groove 231, which is close to the front shell 10, is open and is provided with a guide surface 232;

in above-mentioned scheme, logical groove 231 can supply optic fibre to pass, does open form design through further the structure to the nail pipe to being equipped with spigot surface 232 and leading, can further promoting optic fibre to enter into logical groove 231, when guaranteeing that optic fibre can get into smoothly and realize follow-up butt joint in logical groove 231, the effectual whole production degree of difficulty that reduces.

Specifically, a first card slot 11 matched with the first card block 311 is formed on the front shell 10;

in the above solution, the front shell 10 and the transition piece 31 are quickly spliced through the first latch 311 and the first latch slot 11.

Further, in some embodiments of the present application, the first fastening block 311 and the first fastening groove 11 form a first fastening structure, the second fastening block 312 and the second fastening groove 332 form a second fastening structure, and the maximum transverse dimension of the first fastening structure and the second fastening structure is controlled at 6.20mm, which is smaller than the distance of the duplex lc6.25mm, so that a duplex connector can be formed after the duplex fastening is performed on 2 hot-melt quick-connect fasteners, and the LC duplex adapter can be inserted/pulled out at the same time.

Specifically, in some embodiments, the optical fiber quick connector provided in the present disclosure is installed as follows:

1. placing the ferrule assembly into a fusion splicing fixture, and putting one end of an optical fiber fusion splicer;

2. firstly, the tail shell component is sleeved with the field optical cable, then the heat shrinkable tube is sleeved with the field optical cable,

3. after the on-site optical cable is stripped and cut, the optical cable is placed on the other end of the welding machine;

4. welding the optical fibers;

5. the heat-shrinkable tube is sleeved, one end of the heat-shrinkable tube is tightly attached to the ferrule assembly, and the ferrule assembly is placed into the heat-shrinkable bin for heat-shrinking;

6. the inserting core assembly is arranged in the front shell according to the required direction;

7. the tail shell assembly is sleeved gradually, crosses the position of the heat shrink tube, and the protruding pins are clamped in the grooves of the front shell;

8. wiping the end face of the ferrule body

9. The lock pin main part inserts and detects red light pen laser delivery outlet, opens laser, inspects the light leak through the visual zone. If no light leakage exists, the welding is judged to be good.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and all simple modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present application are intended to be included within the scope of the present application.

Claims (10)

1. An LC hot melt type optical fiber quick connector is characterized in that: the front shell, the core inserting assembly and the tail shell assembly are included;

the front shell is connected with the tail shell assembly and is matched with the tail shell assembly to form an accommodating space for accommodating the ferrule assembly;

the tail shell assembly comprises an elastic module which limits the insertion core assembly to be far away from the front shell along the axial direction of the insertion core assembly.

2. The LC hot melt optical fiber quick connector of claim 1, wherein: the elastic module comprises an abutting part and an elastic part;

one end of the elastic piece is abutted against the inner cavity of the tail shell assembly, and the other end of the elastic piece is abutted against the abutting piece;

the abutting piece abuts against one end of the ferrule assembly.

3. The LC hot melt optical fiber quick connector of claim 2, wherein: one end of the abutting part close to the elastic part is provided with an annular plane, and the outer diameter of the abutting part is larger than that of the other end of the abutting part.

4. The LC hot melt optical fiber quick connector of claim 1, wherein: the tail shell assembly further comprises a transition piece, and a first clamping block and a second clamping block are formed on the outer side wall of the transition piece;

the first fixture block and the second fixture block are respectively close to the front shell and far away from the front shell.

5. The LC hot melt fiber optic quick connector of claim 4, wherein: the tail shell assembly further comprises a tail shell connected with the transition piece, and a visible area is formed on the tail shell;

the visible area is made of a transparent material.

6. The LC hot melt fiber optic quick connector of claim 5, wherein: the aft shell is connected with the transition piece;

and a second clamping groove matched with the second clamping block is formed on the tail shell.

7. The LC hot melt fiber optic quick connector of claim 4, wherein: the ferrule assembly comprises a ferrule main body, a tail handle and a nail tube which are sequentially connected;

and embedded optical fibers are assembled in the ferrule assembly.

8. The LC hot melt optical fiber quick connector of claim 7, wherein: and a third clamping groove is formed on the tail handle, and the nail tube is detachably embedded into the third clamping groove.

9. The LC hot melt optical fiber quick connector of claim 7, wherein: the nail pipe is formed with logical groove along its axial is run through, lead to the groove and be close to the one end of preceding shell is uncovered form, and is formed with the spigot surface.

10. The LC hot melt fiber optic quick connector of claim 4, wherein: and the front shell is provided with a first clamping groove matched with the first clamping block.

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