CN219417799U - LC connector - Google Patents

Abstract

The embodiment of the utility model provides an LC connector, which comprises a front shell, a rear shell and a tail sheath, wherein the middle part of the front shell is provided with a jack along the axial direction, the middle part of the rear shell is provided with a shaft hole along the axial direction, the front end of the rear shell is inserted into the tail end of the front shell, the tail sheath is sleeved and fixed at the tail end of the rear shell, an elastic cantilever used for being matched and clamped with a butt-jointed adapter is formed outside the front outer wall of one side of the front shell in an inclined manner towards the tail end of the front shell, a pressing elastic piece extending in the front end direction of the front shell is arranged on the outer wall of one side of the tail sheath, and the free end of the pressing elastic piece is arranged outside the free end of the elastic cantilever. According to the embodiment, the pressing spring piece is arranged on the outer wall of the tail sheath, extends in the front end direction of the front shell and is arranged on the outer side of the elastic cantilever, the elastic cantilever and the adapter can be released from the clamping state by pressing the pressing spring piece on the tail sheath, the pressing spring piece is designed on the tail sheath with a relatively simple structure, the pressing spring piece does not need to be designed on the rear shell with a relatively complex structure, and manufacturing and assembly are facilitated.

Description

LC connector

Technical Field

The embodiment of the utility model relates to the technical field of optical fiber connectors, in particular to an LC connector.

Background

An existing LC connector mainly includes: the middle part is equipped with preceding shell, the front end of jack peg graft in preceding shell in and cup joint and be fixed in the tail sheath of backshell tail end, the outer wall department of one side of preceding shell leans on preceding shell tail end slant extension to be formed with the elasticity cantilever that is used for with the adapter cooperation joint of butt joint, the outer wall integrated into one side of backshell has the slant the press shrapnel that the front end direction of preceding shell extends, the free end of press shrapnel is arranged in the free end outside of elasticity cantilever, when carrying out equipment maintenance, through pressing the press shrapnel, can make elasticity cantilever and adapter release the joint state, and then can follow the adapter and pull out the LC connector.

However, because the existing backshell is provided with the grafting structure for assembling the ferrule assembly and the auxiliary structures such as the buckle structure for being matched with the front shell in a buckling manner besides the pressing elastic piece, the auxiliary structures are formed by integrally injection molding with the backshell body, and the structure is too complicated, the difficulty of designing and processing the die is relatively high, and the difficulty of injection molding is relatively high, so that the production efficiency is improved, and the production cost is reduced.

Disclosure of Invention

The technical problem to be solved by the embodiment of the utility model is to provide an LC connector which is beneficial to manufacturing and reducing production cost.

In order to solve the technical problems, the embodiment of the utility model provides the following technical scheme: the utility model provides a LC connector, includes that the middle part is equipped with the preceding shell of jack along the axial, the middle part be equipped with the shaft hole along the axial and the front end peg graft in the backshell of preceding shell tail end and cup joint and be fixed in the tail sheath of backshell tail end portion, the outer wall of one side of preceding shell is close to front end department and is formed with the elasticity cantilever that is used for the adapter cooperation joint with the butt joint outward in preceding shell tail end slant, the outer wall of one side of tail sheath is equipped with the slant the press shell fragment that the front end direction of preceding shell extends, press the free end of shell fragment to be arranged in the free end outside of elasticity cantilever.

Further, the tail sheath comprises a large-diameter section sleeved at the tail end of the rear shell, a tapered section connected with one end, far away from the rear shell, of the large-diameter section and gradually reduced in diameter, and a small-diameter section connected with the tapered section and smaller than the large-diameter section in diameter, and the pressing elastic sheet extends out from the outer wall of one side of the tapered section.

Furthermore, the tail end of the rear shell is outwards protruded with a core tube along the axial direction, and the tail sheath is sleeved and fixed on the core tube.

Further, the outer wall of the core tube is provided with a clamping convex ring along the radial bulge, the clamping convex ring is symmetrically provided with a positioning groove, the inner wall of the tail sheath is correspondingly concavely provided with a clamping annular groove at a position with a preset distance from the front end opening of the tail sheath, the clamping annular groove is internally symmetrically provided with a positioning convex block, and when the tail sheath is sheathed on the core tube, the clamping convex ring is correspondingly embedded in the clamping annular groove and the positioning convex block is correspondingly clamped in the positioning groove to fix the tail sheath and the core tube relatively in the axial direction and the circumferential direction.

Furthermore, the pipe wall of the core pipe is symmetrically provided with telescopic notches which extend from the end face of the tail end of the core pipe to the position of the clamping convex ring and are used for elastically deforming the core pipe.

Furthermore, the front end opening of the tail sheath is symmetrically provided with angle limiting protruding blocks which are aligned with the clamping ring grooves and are sleeved on the core tube only at a preset angle, and the angle limiting protruding blocks and the positioning protruding blocks are coaxially arranged.

Further, a side surface of the clamping convex ring, which faces the tail sheath, is provided with a first guiding inclined surface for guiding the clamping convex ring to be embedded into the clamping ring groove.

Further, the inner edge of the front end opening of the tail sheath is also provided with a second guide inclined plane for guiding the clamping convex ring to be embedded into the clamping ring groove.

Further, the middle section of the rear shell is further provided with a stop boss in a protruding mode along the radial direction, the stop boss is used for being abutted with the end face of the tail end of the front shell to limit the length of the rear shell inserted into the front shell, the front end of the stop boss is provided with an inserting portion in an extending mode, and the tail end of the stop boss is provided with the core tube in an extending mode.

Further, barbs are respectively arranged on two opposite sides of the plug-in connection part, buckling holes are respectively arranged on two opposite side walls of the tail end of the front shell, and when the plug-in connection part is inserted into the front shell, the barbs are correspondingly buckled into the buckling holes.

After the technical scheme is adopted, the embodiment of the utility model has at least the following beneficial effects: according to the embodiment of the utility model, the pressing spring piece is arranged on the outer wall of one side of the tail sheath, the pressing spring piece extends in the front end direction of the front shell in an inclined manner, the free end of the pressing spring piece is arranged on the outer side of the free end of the elastic cantilever, and when equipment maintenance is carried out, the elastic cantilever and the adapter can be released from the clamping state by pressing the pressing spring piece on the tail sheath, and the pressing spring piece is designed on the tail sheath with a relatively simple structure, so that the pressing spring piece does not need to be designed on the rear shell with a relatively complex structure, and the manufacturing and the assembly are facilitated.

Drawings

Fig. 1 is a schematic view showing a split structure of an alternative embodiment of the LC connector of the present utility model.

Fig. 2 is a schematic diagram of a split structure of an alternative embodiment of the LC connector of the present utility model.

Fig. 3 is a schematic cross-sectional view of an alternative embodiment of the LC connector of the present utility model along the mid-axial plane of the length of the spring cantilever.

Fig. 4 is a schematic cross-sectional view of an alternative embodiment of the LC connector of the present utility model along the axial plane of the two barbs.

Fig. 5 is a schematic view of the structure of an alternative embodiment tail jacket of the LC connector of the present utility model.

Detailed Description

The present application is described in further detail below with reference to the drawings and specific examples. It should be understood that the following exemplary embodiments and descriptions are only for the purpose of illustrating the utility model and are not to be construed as limiting the utility model, and that the embodiments and features of the embodiments herein may be combined with one another without conflict.

As shown in fig. 1-3, an alternative embodiment of the present utility model provides an LC connector, which includes a front shell 1 with a jack 10 in the middle along the axial direction, a rear shell 3 with a shaft hole 30 in the middle along the axial direction and a front end inserted into the rear end of the front shell 1, and a rear sheath 5 sleeved and fixed on the rear end of the rear shell 3, an elastic cantilever 12 for mating and clamping with a mating adapter is formed on an outer wall of one side of the front shell 1 near the front end and extends obliquely towards the rear end of the front shell 1, a pressing spring 50 extending obliquely towards the front end of the front shell 1 is provided on an outer wall of one side of the rear sheath 5, and a free end of the pressing spring 50 is disposed outside a free end of the elastic cantilever 12.

According to the embodiment of the utility model, the pressing elastic piece 50 is arranged on the outer wall of one side of the tail sheath 5, the pressing elastic piece 50 extends obliquely in the front end direction of the front shell 1, the free end of the pressing elastic piece 50 is arranged on the outer side of the free end of the elastic cantilever 12, and when equipment maintenance is carried out, the elastic cantilever 12 and the adapter can be released from the clamping state by pressing the pressing elastic piece 50 on the tail sheath 5, and the pressing elastic piece 50 is designed on the tail sheath 5 with a relatively simple structure, so that the pressing elastic piece 50 does not need to be designed on the rear shell 3 with a relatively complex structure, and the manufacturing and the assembly are facilitated.

In an alternative embodiment of the present utility model, as shown in fig. 1-5, the tail sheath 5 includes a large diameter section 52 sleeved on the tail end of the rear housing 3, a tapered section 54 connected with an end of the large diameter section 52 away from the rear housing 3 and having a gradually decreasing diameter, and a small diameter section 56 connected with the tapered section 54 and having a smaller diameter than the large diameter section 52, and the pressing spring 50 extends from an outer wall of one side of the tapered section 54. In this embodiment, the pressing spring 50 extends from the tapered section 54 of the tail sheath 5, so that the design structure is relatively simple and injection molding is convenient.

In an alternative embodiment of the present utility model, as shown in fig. 1, 3 and 4, a core tube 32 protrudes outward from the tail end of the rear housing 3 along the axial direction, and the tail sheath 5 is sleeved and fixed on the core tube 32. In this embodiment, the tail end of the rear shell 3 is provided with the core tube 32, which facilitates the connection and assembly of the tail sheath 5 and the rear shell 3.

In an alternative embodiment of the present utility model, as shown in fig. 1 and fig. 5, the outer wall of the core tube 32 is radially protruded with a clamping convex ring 321, the clamping convex ring 321 is symmetrically provided with a positioning groove 323, the inner wall of the tail sheath 5 is correspondingly concavely provided with a clamping annular groove 57 at a predetermined distance from the front end opening of the tail sheath 5, the clamping annular groove 57 is symmetrically provided with a positioning protrusion 571, and when the tail sheath 5 is sleeved on the core tube 32, the clamping convex ring 321 is correspondingly embedded in the clamping annular groove 57, and the positioning protrusion 571 is correspondingly clamped in the positioning groove 323 to fix the tail sheath 5 and the core tube 32 relatively in the axial direction and the circumferential direction. In this embodiment, the clamping convex ring 321 is correspondingly embedded into the clamping ring groove 57, and the positioning convex block 571 is correspondingly clamped into the positioning groove 323, so that the tail sheath 5 and the core tube 32 are respectively connected and positioned in the axial direction and the circumferential direction, the assembly is convenient, and the structural stability is strong.

In an alternative embodiment of the present utility model, as shown in fig. 1, the wall of the core tube 32 is further symmetrically provided with a stretch notch 325 extending from the end face of the core tube 32 to the position of the snap-fit convex ring 321 for elastically deforming the core tube 32. In this embodiment, the telescopic notch 325 is further provided, so that the pipe wall of the core pipe 32 can be elastically deformed appropriately, the clamping convex ring 321 can conveniently enter the clamping ring groove 57, and the assembly difficulty is lower.

In an alternative embodiment of the present utility model, as shown in fig. 5, the front end opening of the tail sheath 5 is further symmetrically provided with an angle limiting protrusion 58 for aligning with the snap ring groove 57 so that the tail sheath 5 is only sleeved on the core tube 32 at a predetermined angle, and the angle limiting protrusion 58 is coaxially disposed with the positioning protrusion 571. In this embodiment, the angle limiting protrusion 58 is further provided, and since the angle limiting protrusion 58 and the positioning protrusion 571 are coaxially arranged, an assembler can align the angle limiting protrusion 58 with the clamping ring groove 57, and then sleeve the tail sheath 5 on the core tube 32, so that the positioning protrusion 571 can be ensured to be accurately clamped into the clamping ring groove 57, and dislocation of the two is avoided.

In an alternative embodiment of the present utility model, as shown in fig. 1, a side surface of the locking convex ring 321 facing the tail sheath 5 is provided with a first guiding inclined surface 326 for guiding the locking convex ring 321 to be embedded in the locking ring groove 57. In this embodiment, by providing the first guiding slope 326 on the side surface of the locking convex ring 321 facing the tail sheath 5, the first guiding slope can effectively guide the locking convex ring 321 to slightly deform and then be embedded into the locking ring groove 57.

In an alternative embodiment of the present utility model, as shown in fig. 4 and 5, the inner edge of the front end opening of the tail jacket 5 is further provided with a second guiding inclined surface 59 for guiding the snap-in convex ring 321 to be embedded in the snap-in ring groove 57. In this embodiment, the second guiding inclined plane 59 is disposed at the inner edge of the front end opening of the tail sheath 5, which is also effective to guide the snap convex ring 321 to slightly deform and then be embedded in the snap ring groove 57. In implementation, the first guiding inclined plane 326 and the second guiding inclined plane 59 may be flexibly arranged alternatively, or the first guiding inclined plane 326 and the second guiding inclined plane 59 may be arranged simultaneously.

In an alternative embodiment of the present utility model, as shown in fig. 1-4, the middle section of the rear shell 3 is further provided with a stop boss 34 protruding radially for abutting against the tail end face of the front shell 1 to limit the length of the rear shell 3 inserted into the front shell 1, the front end of the stop boss 34 is extended with a plug-in part 36 inserted into the front shell 1, and the tail end of the stop boss 34 is extended with the core tube 32. In this embodiment, the stop boss 34 is further provided, so that the rear case 3 can be effectively limited to be inserted into the front case 1 by abutting against the end face of the rear end of the front case 1.

In an alternative embodiment of the present utility model, as shown in fig. 1 and fig. 4, barbs 361 are respectively disposed on opposite sides of the plugging portion 36, buckling holes 14 are respectively disposed on opposite side walls of the tail end of the front shell 1, and when the plugging portion 361 is inserted into the front shell 1, the barbs 361 are correspondingly buckled into the buckling holes 14. In this embodiment, when the plug portion 361 is inserted into the front shell 1, the barb 361 of the plug portion 36 is matched with the fastening hole 14 of the front shell 1, so that the front shell 1 and the rear shell 3 can be effectively connected and fixed, and the assembly is convenient.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are all within the scope of the present utility model.

Claims (10)

1. The utility model provides a LC connector, includes that the middle part is equipped with the preceding shell of jack along the axial, the middle part be equipped with the shaft hole along the axial and the front end peg graft in the backshell of preceding shell tail end and cup joint and be fixed in the tail sheath of backshell tail end portion, the outer wall of one side of preceding shell is close to front end department and extends forward shell tail end slant and be formed with the elasticity cantilever that is used for the adapter cooperation joint with the butt joint, its characterized in that, the outer wall of one side of tail sheath is equipped with the slant the press shell fragment that the front end direction of preceding shell extends, press the free end of shell fragment to arrange in the free end outside of elasticity cantilever.

2. The LC connector of claim 1, wherein the tail boot includes a large diameter section that is sleeved on the tail end of the rear housing, a tapered section that is engaged with an end of the large diameter section that is far from the rear housing and has a gradually decreasing diameter, and a small diameter section that is engaged with the tapered section and has a smaller diameter than the large diameter section, and the pressing spring extends from an outer wall of one side of the tapered section.

3. The LC connector of claim 1 or 2, wherein the tail end of the rear housing is axially outwardly extended with a core tube, and the tail jacket is socket-fastened to the core tube.

4. The LC connector of claim 3, wherein the outer wall of the core tube is provided with a clamping convex ring along a radial protrusion, the clamping convex ring is symmetrically provided with a positioning groove, the inner wall of the tail sheath is correspondingly provided with a clamping annular groove in a recessed manner at a predetermined distance from the front end opening of the tail sheath, the clamping annular groove is symmetrically provided with a positioning convex block, and when the tail sheath is sleeved on the core tube, the clamping convex ring is correspondingly embedded in the clamping annular groove and the positioning convex block is correspondingly clamped in the positioning groove to fix the tail sheath and the core tube relatively in the axial direction and the circumferential direction.

5. The LC connector of claim 4, wherein the wall of said core tube is further symmetrically provided with expansion notches extending from the end surface of the end of the core tube to the position of said snap-on collars for elastic deformation of said core tube.

6. The LC connector of claim 4 wherein said tail boot front end opening is further symmetrically provided with angle defining projections for alignment with said snap ring grooves to allow said tail boot to be sleeved on said core tube only at a predetermined angle, said angle defining projections being disposed coaxially with said positioning projections.

7. The LC connector of claim 4, wherein a side of the snap-in collar facing the tail jacket is provided with a first guide ramp for guiding the snap-in collar into the snap-in groove.

8. The LC connector of claim 4, wherein the front end opening inner edge of the tail boot is further provided with a second guiding ramp for guiding the snap-in collar into the snap-in ring groove.

9. The LC connector of claim 4, wherein the middle section of the rear housing is further provided with a stop boss protruding in the radial direction for abutting against the end face of the rear end of the front housing to limit the insertion length of the rear housing into the front housing, the front end of the stop boss is extended with a plug portion inserted into the front housing, and the rear end of the stop boss is extended with the core tube.

10. The LC connector of claim 9, wherein the opposite sides of the insertion portion are respectively provided with barbs, the opposite side walls of the tail end of the front housing are respectively provided with a fastening hole, and the barbs are correspondingly fastened into the fastening holes when the insertion portion is inserted into the front housing.