CN219978564U - Core insert assembly and optical fiber connector comprising same - Google Patents

Abstract

The utility model relates to the technical field of optical fiber connectors and discloses an inserting core assembly and an optical fiber connector comprising the inserting core assembly, wherein the inserting core assembly comprises a tail seat, an inserting core, a pressing and attaching block and a lock catch, the inserting core is inserted into the tail seat, the pressing and attaching block can press a butt joint area of a butt joint groove so as to press an optical fiber butt joint point, the connection of two optical fibers is realized, a first matching surface which is obliquely arranged is arranged on the pressing and attaching block, the thrust for pushing the lock catch can be gradually increased in the process of pushing the lock catch, and the lock catch gradually forms interference fit with the pressing and attaching block, so that larger thrust is not required in the whole process of pushing the lock catch in the prior art, the operation difficulty of a user is reduced, and the assembly efficiency is improved.

Description

Core insert assembly and optical fiber connector comprising same

Technical Field

The present utility model relates to the field of optical fiber connectors, and more particularly, to a ferrule assembly and an optical fiber connector including the ferrule assembly.

Background

At present, for the lock pin assembly of the optical fiber connector, a lock buckle sleeve is usually arranged outside the lock pin and the pressing and pasting block, and when in a locking state, the lock buckle is pushed to a locking position, and at the moment, the lock buckle is in interference fit with the pressing and pasting block, so that the pressing and pasting block can be pressed on an optical fiber butt joint part. However, due to the interference fit, the user needs to use a larger pushing force to move the lock catch to the locking position in the whole process, so that the operation difficulty is high, and the assembly efficiency is low.

Disclosure of Invention

The purpose of the utility model is that: provided are a ferrule assembly and an optical fiber connector including the same, which can reduce the operation difficulty of a user.

In order to achieve the above object, the present utility model provides a ferrule assembly comprising:

the optical fiber butt joint device comprises a tail seat, a butt joint groove and a butt joint groove, wherein the tail seat is provided with a containing cavity, an opening communicated with the containing cavity is further formed in the surface of the tail seat, an optical fiber butt joint platform is arranged in the containing cavity, the optical fiber butt joint platform is provided with the butt joint groove exposed by the opening, the butt joint groove is used for butt joint of optical fibers, the butt joint groove is provided with a butt joint area where an optical fiber butt joint position is located, a first channel and a second channel which are communicated with the containing cavity are respectively arranged at two ends of the tail seat, and the first channel is used for the optical fibers to pass through;

the optical fiber connector comprises an inserting core, a first optical fiber and a second optical fiber, wherein a third channel for the other optical fiber to pass through is arranged in the inserting core, the second channel is penetrated by the inserting core, and two ends of the abutting groove are respectively arranged corresponding to the third channel and the first channel;

the pressing and pasting block is covered at the opening and can seal the accommodating cavity, a first matching surface is arranged on the surface of the pressing and pasting block, which is away from the accommodating cavity, the first matching surface is obliquely arranged, and the pressing and pasting block is used for pressing the butt joint area;

the lock catch is movably sleeved on the tailstock and pushes the lock catch to the first matching surface, and the lock catch gradually forms interference fit with the pressing and pasting block so that the pressing and pasting block compresses the butt joint area.

In some embodiments of the utility model:

the included angle between the first matching surface and the table top of the optical fiber docking platform is theta, and the following conditions are satisfied: θ is more than or equal to 0.3 and less than or equal to 5 degrees.

In some embodiments of the utility model:

the lock catch is provided with a second matching surface matched with the first matching surface, and the second matching surface is obliquely arranged;

pushing the lock catch to the first matching surface, wherein the first matching surface and the second matching surface gradually form interference fit.

In some embodiments of the utility model:

the pressing block comprises:

the pressing part is covered at the opening and can seal the accommodating cavity, the first matching surface is arranged on the surface of the pressing part, which is away from the accommodating cavity, the surface of the pressing part, which is towards the accommodating cavity, is provided with a pressing surface, and the pressing surface is used for pressing the butt joint area;

the tail handle part is arranged at one end of the pressing part, the tail seat is provided with a containing groove for containing the tail handle part, the containing groove is communicated with the opening and is positioned at one side of the opening, and when the tail handle part is arranged in the containing groove, the lock catch can be pushed to the first matching surface through the tail handle part;

the maximum thickness of the compression portion is greater than the maximum thickness of the tail shank portion.

In some embodiments of the utility model:

the pressing block further comprises:

the flexible part is connected with the pressing part and the tail handle part, and when the tail handle part is placed in the accommodating groove, the lock catch can be pushed to the first matching surface through the tail handle part and the flexible part in sequence;

the maximum thickness of the tail shank is greater than the maximum thickness of the flexible portion.

In some embodiments of the utility model:

the surface of the compressing part, which is away from the accommodating cavity, is also provided with a transition surface, and the transition surface is arranged between the first matching surface and the tail handle part.

In some embodiments of the utility model:

the surface of the pressing block, which is away from the accommodating cavity, is provided with a first groove, and the first groove extends along the pushing direction of the lock catch.

In some embodiments of the utility model:

the surface of the pressing block, which is away from the accommodating cavity, is provided with a second groove, and the extending direction of the second groove is crossed with the pushing direction of the lock catch.

In some embodiments of the utility model:

the pressure subsides piece orientation hold and be provided with the third recess on the surface in chamber, the tailstock be provided with third recess matched with sand grip, the sand grip is located optic fibre butt joint platform's both sides, pressure subsides piece lid is located when the opening part, the third recess with sand grip cooperatees.

The utility model also provides an optical fiber connector comprising the ferrule assembly described in any of the preceding paragraphs.

The utility model provides an optical fiber connector and a core insert assembly thereof, which have the beneficial effects that compared with the prior art:

the lock pin assembly comprises a tailstock, a lock pin, a pressing block and a lock catch, wherein the lock pin is inserted into the tailstock, the pressing block can compress a butting area so as to compress an optical fiber butting point, connection of two optical fibers is realized, the pressing block is provided with a first matching surface which is obliquely arranged, the thrust for pushing the lock catch can be gradually increased in the process of pushing the lock catch, and the lock catch is gradually in interference fit with the pressing block, so that larger thrust is not required in the whole process of pushing the lock block in the prior art, the operation difficulty of a user is reduced, and the assembly efficiency is improved.

The optical fiber connector comprises the ferrule assembly, so that the operation difficulty of a user can be reduced, and the assembly efficiency is improved.

Drawings

Fig. 1 is a schematic view of a ferrule assembly according to an embodiment of the present utility model.

Fig. 2 is an exploded view of the ferrule assembly of fig. 1.

Fig. 3 is a cross-sectional view of the ferrule assembly of fig. 1 in an unlocked state.

Fig. 4 is a cross-sectional view of the ferrule assembly of fig. 1 in a locked state.

Fig. 5 is a schematic view of the tailstock of the ferrule assembly of fig. 1.

Fig. 6 is a schematic diagram of a press-fit block of the ferrule assembly of fig. 1.

Fig. 7 is a schematic view of another angle of fig. 6.

Fig. 8 is a schematic view of a first mating surface of the ferrule assembly of fig. 1.

Fig. 9 is a schematic structural view of a latch according to an embodiment of the present utility model.

Fig. 10 is a schematic view of another implementation of a ferrule assembly in accordance with an embodiment of the present utility model.

Fig. 11 is an exploded view of the ferrule assembly of fig. 10.

Fig. 12 is a schematic view of the tailstock of the ferrule assembly of fig. 10.

Fig. 13 is a schematic view of a press-fit block of the ferrule assembly of fig. 10.

Fig. 14 is a schematic view of another angle of fig. 13.

Fig. 15 is a schematic view of a first mating surface of the ferrule assembly of fig. 10.

Fig. 16 is a cross-sectional view of the unlocked state of the ferrule assembly of fig. 10.

Fig. 17 is an enlarged schematic view at a in fig. 16.

Fig. 18 is an enlarged schematic view at B in fig. 16.

Fig. 19 is a cross-sectional view of the ferrule assembly of fig. 10 in a locked state.

Fig. 20 is an enlarged schematic view at C in fig. 19.

Fig. 21 is a schematic view of an optical fiber connector according to an embodiment of the present utility model.

Fig. 22 is an exploded view of the fiber optic connector of fig. 21.

Fig. 23 is a schematic diagram of another implementation of an optical fiber connector according to an embodiment of the present utility model.

Fig. 24 is a schematic view of another implementation of an optical fiber connector according to an embodiment of the present utility model.

Fig. 25 is a schematic diagram of another implementation of an optical fiber connector according to an embodiment of the present utility model.

Fig. 26 is an exploded view of the fiber optic connector of fig. 25.

Fig. 27 is an enlarged schematic view at D in fig. 3.

Fig. 28 is an enlarged schematic view at E in fig. 3.

Fig. 29 is an enlarged schematic view at F in fig. 3.

Fig. 30 is an enlarged schematic view at G in fig. 4.

Fig. 31 is an enlarged schematic view at H in fig. 4.

Fig. 32 is an enlarged schematic view at I in fig. 4.

Fig. 33 is an enlarged schematic view at J in fig. 19.

Fig. 34 is an enlarged schematic view at K in fig. 19.

In the figure, 1, a tailstock; 2. a core insert; 3. pressing and pasting blocks; 4. locking; 5. an optical fiber docking platform; 11. a receiving chamber; 12. an opening; 13. a first channel; 14. a second channel; 15. a receiving groove; 21. a third channel; 22. a front ferrule; 23. a rear ferrule; 24. a connecting piece; 31. a first mating surface; 32. a compression surface; 33. a pressing part; 34. a tail shank; 35. a flexible portion; 36. a first groove; 37. a second groove; 38. a third groove; 39. a transition surface; 41. a second mating surface; 51. a butt joint groove; 52. a convex strip; 100. a ferrule assembly; 200. a connector body; 300. a front sleeve; 400. a rear sleeve; 500. an optical fiber.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 and 2, a ferrule assembly 100 according to a preferred embodiment of the present utility model includes: tailstock 1, lock pin 2, press the piece 3 and hasp 4.

The tailstock 1 has and holds the chamber 11, and the surface of tailstock 1 still is provided with the opening 12 that communicates with holding the chamber 11, holds and is provided with optic fibre butt joint platform 5 in the chamber 11, is provided with the butt joint groove 51 that is exposed by opening 12 on the optic fibre butt joint platform 5, and butt joint groove 51 is used for docking optical fiber, and butt joint groove 51 has the butt joint region at optic fibre butt joint position place, and the both ends of tailstock 1 set up respectively with hold the first passageway 13 and the second passageway 14 that the chamber 11 is linked together, and first passageway 13 is used for supplying optic fibre 500 to pass.

The fiber splice location refers to the point of splicing of the fibers in the splice channel 51, which is in the splice area.

The ferrule 2 is internally provided with a third channel 21 for the other optical fiber 500 to pass through, the ferrule 2 is provided with a second channel 14 in a penetrating way, and two ends of the butt joint groove 51 are respectively arranged corresponding to the third channel 21 and the first channel 13.

Referring to fig. 6-8, the pressing block 3 is covered at the opening 12 and can seal the accommodating cavity 11, a first mating surface 31 is disposed on a surface of the pressing block 3 facing away from the accommodating cavity 11, the first mating surface 31 is disposed in an inclined manner, and the pressing block 3 is used for pressing the butt joint area.

Referring to fig. 9, the lock catch 4 is movably sleeved on the tailstock 1 to push the lock catch 4 to the first mating surface 31, and the lock catch 4 gradually forms an interference fit with the pressing block 3, so that the pressing block 3 presses the butt joint area.

According to the embodiment, the ferrule assembly 100 is arranged, the ferrule 2 is inserted into the tailstock 1, the pressing block 3 can compress the butt joint area, so that the optical fibers 500 are compressed, the connection of the two optical fibers 500 is realized, the pressing block 3 is provided with the first matching surface 31 which is obliquely arranged, the thrust for pushing the lock catch 4 can be gradually increased in the process of pushing the lock catch 4, the lock catch 4 is gradually in interference fit with the pressing block 3, in the prior art, when the push block does not reach the locking position, the push block can be pushed continuously only by overcoming the resistance brought by the interference fit, and therefore, the whole process of pushing the lock block needs to be provided with larger thrust, the setting of the first matching surface 31 has a certain buffer transition effect, the thrust can be gradually increased, and the interference fit can be formed only when the push block is pushed to the locking position, so that the operation difficulty of a user can be reduced, and the assembly efficiency is improved.

Referring to fig. 5, in the present embodiment, both ends of the tailstock 1 are columnar, and a first channel 13 and a second channel 14 are disposed inside. The first channel 13 and the second channel 14 are both cylindrical and are arranged coaxially.

For the ferrule 2, referring to fig. 10-12, the ferrule 2 may be configured as a single column, in which case, the fiber docking platform 5 may be disposed on the tailstock 1, and the fiber docking platform 5 is a bottom surface of the accommodating cavity 11; the ferrule 2 may also include a front ferrule 22, a rear ferrule 23, and a connector 24 connecting the front ferrule 22 and the rear ferrule 23, referring to fig. 5, the front ferrule 22 and the connector 24 are cylindrical, and the third channel 21 penetrates the front ferrule 22 to form an inner hole extending axially of the front ferrule 22, where the optical fiber docking platform 5 is disposed on the rear ferrule 23. The connector 24 is inserted in the second channel 14, the rear ferrule 23 is located in the receiving cavity 11, and the front ferrule 22 is located outside the tailstock 1.

When the optical fibers 500 are butted, one optical fiber 500 passes through the first channel 13 and enters the butting groove 51, the other optical fiber 500 passes through the third channel 21 and enters the butting groove 51, the two optical fibers 500 are butted in the butting area in the butting groove 51, and after the lock catch 4 is locked, the pressing and pasting block 3 can press the butting point of the two optical fibers 500.

Referring to fig. 3 and fig. 27-29, in the unlocked state, the lock catch 4 is not pushed onto the first mating surface 31, a gap is provided between the pressing block 3 and the optical fiber docking platform 5, and the optical fiber 500 can move in the docking slot 51.

Referring to fig. 4 and fig. 30-32, in the locked state, the lock catch 4 is pushed onto the first mating surface 31, and the pressing block 3 is pressed against the optical fiber docking platform 5, so that the docking point of two optical fibers 500 can be pressed, and the optical fibers 500 cannot move in the docking slot 51, so as to realize connection of the optical fibers 500.

In some embodiments, the first mating surface 31 forms an angle θ with the mesa of the fiber docking platform 5 that satisfies: θ is more than or equal to 0.3 and less than or equal to 5 degrees.

In this range, the buffer transition effect is ensured, the inclination angle is not too large, and the lock catch 4 is not easy to slip and unlock in the locking state. If theta is larger than 5 degrees, the inclination angle is too large, and the lock catch 4 is easy to slip and unlock in a locking state; if theta is less than 0.3 degrees, the problem of small buffer transition effect exists, the labor-saving effect is not obvious, and the operation difficulty of a user cannot be obviously reduced.

In some embodiments, the lock catch 4 is provided with a second matching surface 41 matched with the first matching surface 31, and the second matching surface 41 is obliquely arranged; the lock catch 4 is pushed to the first mating surface 31, and the first mating surface 31 gradually forms an interference fit with the second mating surface 41.

Since the lock catch 4 of the present embodiment is sleeved outside the press-fit block 3 and the tailstock 1, the second mating surface 41 is disposed inside the lock catch 4 and matches with the first mating surface 31.

The second matching surface 41 is arranged and matched with the first matching surface 31 when the lock catch 4 is pushed, so that the buffer transition effect of the locking process can be better realized, and the pushing force applied to the lock catch 4 is further saved.

In some embodiments, the compression block 3 includes a compression portion 33 and a tail portion 34.

The pressing part 33 is covered at the opening 12 and can seal the accommodating cavity 11, the first matching surface 31 is arranged on the surface of the pressing part 33 facing away from the accommodating cavity 11, the pressing surface 32 is arranged on the surface of the pressing part 33 facing toward the accommodating cavity 11, and the pressing surface 32 is used for pressing the abutting area.

The compression surface 32 compresses the fiber docking platform 5, thereby compressing the docking area so that the locked state can compress the fiber 500 docking point.

The tail stalk portion 34 sets up in the one end of compressing tightly portion 33, is provided with the accommodation groove 15 of holding tail stalk portion 34 on the tailstock 1, and accommodation groove 15 and opening 12 intercommunication are located one side of opening 12, and when tail stalk portion 34 was arranged in accommodation groove 15, hasp 4 can be pushed to first mating surface 31 through tail stalk portion 34.

The maximum thickness of the pressing portion 33 is greater than the maximum thickness of the trailing shank portion 34.

Because the pressing part 33 is in interference fit with the lock catch 4, the surface of the side, on which the first matching surface 31 is arranged, of the pressing part 33 is higher than the surface of the tail handle 34, so that the lock catch 4 is prevented from being blocked by the tail handle 34 to influence the matching with the first matching surface 31.

The placement of the receiving groove 15 can form a stepped groove therein to receive the shank 34.

When the pressing block 3 and the lock catch 4 are in interference fit, the tail handle 34 can deform to enable the pressing part 33 to be in tight fit with the optical fiber docking platform 5.

In some embodiments, the pressing block 3 further includes a flexible portion 35, the pressing portion 33 and the tail portion 34 are connected by the flexible portion 35, and when the tail portion 34 is placed in the accommodating groove 15, the lock catch 4 can be pushed to the first mating surface 31 through the tail portion 34 and the flexible portion 35 in sequence; the maximum thickness of the tail shank 34 is greater than the maximum thickness of the flexible portion 35.

The flexible part 35 is arranged, so that the flexible part 35 is easier to deform in a locking state, and the deformation of the pressing block 3 mainly occurs in the flexible part 35, so that the assembly is more labor-saving.

In some embodiments, a transition surface 39 is also provided on the surface of the hold-down 33 facing away from the receiving chamber 11, the transition surface 39 being provided between the first mating surface 31 and the trailing shank 34.

The provision of the transition surface 39 enables the shackle 4 to be pushed smoothly onto the first mating surface 31.

In other embodiments, referring to fig. 10 and 11, and fig. 13-15, it may be further provided that the surface of the pressing block 3 facing away from the accommodating cavity 11 is provided with a first groove 36, and the first groove 36 extends along the pushing direction of the lock catch 4.

The first groove 36 can make the thickness of the manufactured pressing block 3 more uniform, and no abrupt change of thickness occurs, so that the bottom surface of the pressing block 3 is prevented from shrinking and deforming, that is, the pressing surface 32 for pressing does not shrink and deform, and the connection of the optical fiber 500 is affected.

The surface of the pressing block 3 facing away from the accommodating cavity 11 is provided with a second groove 37, and the extending direction of the second groove 37 is crossed with the pushing direction of the lock catch 4.

The setting of second recess 37 can let the thickness of the pressure subsides piece 3 of second recess 37 position thinner, has better toughness, similar flexible portion 35 of foretell, can let the deformation of pressure subsides piece 3 mainly take place here, can let pressure subsides piece 3 and optic fibre docking platform 5 close fit, reduces user's operation degree of difficulty to improved the whole fatigue resistance of pressure subsides piece 3, can repeatedly lock and unlock the operation and the condition that pressure subsides piece 3 mechanical properties reduced can not appear.

The surface of the pressing block 3 facing the accommodating cavity 11 is provided with a third groove 38, the tailstock 1 is provided with a convex strip 52 matched with the third groove 38, the convex strip 52 is positioned on two sides of the optical fiber butt joint platform 5, and when the pressing block 3 is covered at the opening 12, the third groove 38 is matched with the convex strip 52.

The protruding strip 52 is a part of the tailstock 1, and the protruding strip 52 encloses the accommodation chamber 11, as shown in fig. 12.

The third groove 38 can enable the stable cover of the pressing block 3 to be arranged at the opening 12, so that the stability of the whole structure in the locking process is improved.

In addition, a bump may be provided at the upper edge of the surface of the pressing block 3 facing the accommodating chamber 11, the bump being located at one end of the pressing block 3 facing the first passage 13. By providing the protruding points, even in the locked state, the end of the pressing block 3 facing the first channel 13 still has a gap with the optical fiber docking platform 5, but the pressing of the optical fiber 500 docking point is not affected, see fig. 19, 20, 33 and 34. In the unlocked state, referring to fig. 16-18, the gap between the pressing block 3 and the optical fiber docking platform 5 enables the optical fiber 500 to move in the docking slot 51.

The present embodiment also provides an optical fiber 500 connector comprising the ferrule assembly 100 described above. Referring to fig. 21-22, the connector further includes a connector body 200, and a front sleeve 300 and a rear sleeve 400 disposed on the body, wherein the rear sleeve 400 and the connector body 200 may be detachably connected by a clamping connection, a threaded connection, or the like, referring to fig. 23 and 24, or both may be turned over to connect the front sleeve 300 and the connector body 200 integrally. The ferrule assembly 100 is disposed in the connector body 200 with the first channel 13 extending in the direction of the boot and the third channel 21 extending in the direction of the front boot 300. Both ferrule assemblies 100 described above may be disposed in the connector body 200, see fig. 25 and 26.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims (10)

1. A ferrule assembly, comprising:

the optical fiber butt joint device comprises a tail seat, a butt joint groove and a butt joint groove, wherein the tail seat is provided with a containing cavity, an opening communicated with the containing cavity is further formed in the surface of the tail seat, an optical fiber butt joint platform is arranged in the containing cavity, the optical fiber butt joint platform is provided with the butt joint groove exposed by the opening, the butt joint groove is used for butt joint of optical fibers, the butt joint groove is provided with a butt joint area where the optical fiber butt joint position is located, a first channel and a second channel communicated with the containing cavity are respectively arranged at two ends of the tail seat, and the first channel is used for the optical fibers to pass through;

the optical fiber connector comprises an inserting core, a first optical fiber and a second optical fiber, wherein a third channel for the other optical fiber to pass through is arranged in the inserting core, the second channel is penetrated by the inserting core, and two ends of the abutting groove are respectively arranged corresponding to the third channel and the first channel;

the pressing and pasting block is covered at the opening and can seal the accommodating cavity, a first matching surface is arranged on the surface of the pressing and pasting block, which is away from the accommodating cavity, the first matching surface is obliquely arranged, and the pressing and pasting block is used for pressing the butt joint area;

the lock catch is movably sleeved on the tailstock and pushes the lock catch to the first matching surface, and the lock catch gradually forms interference fit with the pressing and pasting block so that the pressing and pasting block compresses the butt joint area.

2. The ferrule assembly according to claim 1, wherein:

the included angle between the first matching surface and the table top of the optical fiber docking platform is theta, and the following conditions are satisfied: θ is more than or equal to 0.3 and less than or equal to 5 degrees.

3. The ferrule assembly according to claim 1, wherein:

the lock catch is provided with a second matching surface matched with the first matching surface, and the second matching surface is obliquely arranged;

pushing the lock catch to the first matching surface, wherein the first matching surface and the second matching surface gradually form interference fit.

4. The ferrule assembly of claim 1, wherein the press-fit block comprises:

the pressing part is covered at the opening and can seal the accommodating cavity, the first matching surface is arranged on the surface of the pressing part, which is away from the accommodating cavity, the surface of the pressing part, which is towards the accommodating cavity, is provided with a pressing surface, and the pressing surface is used for pressing the butt joint area;

the tail handle part is arranged at one end of the pressing part, the tail seat is provided with a containing groove for containing the tail handle part, the containing groove is communicated with the opening and is positioned at one side of the opening, and when the tail handle part is arranged in the containing groove, the lock catch can be pushed to the first matching surface through the tail handle part;

the maximum thickness of the compression portion is greater than the maximum thickness of the tail shank portion.

5. The ferrule assembly of claim 4, wherein the press-fit block further comprises:

the flexible part is connected with the pressing part and the tail handle part, and when the tail handle part is placed in the accommodating groove, the lock catch can be pushed to the first matching surface through the tail handle part and the flexible part in sequence;

the maximum thickness of the tail shank is greater than the maximum thickness of the flexible portion.

6. The ferrule assembly according to claim 4, wherein:

the surface of the compressing part, which is away from the accommodating cavity, is also provided with a transition surface, and the transition surface is arranged between the first matching surface and the tail handle part.

7. The ferrule assembly according to claim 1, wherein:

the surface of the pressing block, which is away from the accommodating cavity, is provided with a first groove, and the first groove extends along the pushing direction of the lock catch.

8. The ferrule assembly according to claim 1, wherein:

the surface of the pressing block, which is away from the accommodating cavity, is provided with a second groove, and the extending direction of the second groove is crossed with the pushing direction of the lock catch.

9. The ferrule assembly according to claim 1, wherein:

the pressure subsides piece orientation hold and be provided with the third recess on the surface in chamber, the tailstock be provided with third recess matched with sand grip, the sand grip is located optic fibre butt joint platform's both sides, pressure subsides piece lid is located when the opening part, the third recess with sand grip cooperatees.

10. An optical fiber connector comprising the ferrule assembly of any one of claims 1-9.