CN212965521U

CN212965521U - LC type connector

Info

Publication number: CN212965521U
Application number: CN202022145115.3U
Authority: CN
Inventors: 张业; 韩绍友
Original assignee: Shenzhen Xiayu Precision Parts Co ltd
Current assignee: Shenzhen Xiayu Precision Parts Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-04-13
Anticipated expiration: 2030-09-25

Abstract

The utility model provides a LC type connector, be formed with the assembly spare of group's post including the afterbody protrusion, the crimping cover in the group's post outside is located to the cover and set up the support ring between group's post and crimping cover, form the clearance that is used for the tensile piece of clamp fastening fixed optical fiber between the outer wall of support ring and the crimping cover inner wall, the inner wall and the group's post outer wall of support ring combine closely, the outer wall and the crimping cover inner wall cooperation of support ring press from both sides tight tensile piece and make tensile piece can bear 70N's pulling force and maintain 1 minute and do not drop, support ring outer wall and crimping cover inner wall both's surface hardness all are greater than the surface hardness of tensile piece. The support ring is sleeved on the outer wall of the assembling column, so that the assembling column and the support ring form a rigid whole, the side pulling resistance is improved, the tensile piece is clamped by the outer wall of the support ring and the inner wall of the pressing sleeve, the surface hardness of the outer wall of the support ring and the surface hardness of the inner wall of the pressing sleeve are higher than that of the tensile piece, and the straight pulling resistance of the connector is improved.

Description

LC type connector

Technical Field

The embodiment of the utility model provides a relate to fiber connector technical field, especially relate to a LC type connector.

Background

The LC type connector is one of optical fiber connectors for transmission of data. The existing LC type connector comprises an assembling piece for assembling a connector monomer, an assembling column is formed at the tail part of the assembling piece in a protruding mode and is connected with a crimping sleeve in an inserting mode, when the assembling piece is assembled with an optical fiber correspondingly, an optical fiber core of the optical fiber penetrates through a wire passing groove in the assembling column to be connected with the connector monomer in a butt joint mode, and a tensile piece (such as an aramid fiber bundle) which plays a role in bearing force when the connector is inserted and pulled in the optical fiber is placed outside the assembling column and is clamped through the matching of the side wall of the assembling column and the inner wall of the crimping sleeve. Because the assembling member is usually made of a plastic material with relatively low surface hardness and is easy to deform and wear, in the process of wiring construction, if the lateral tension applied to the LC-type connector is greater than a predetermined value, the assembling post at the tail of the assembling member is easy to break, or if the straight tension applied to the LC-type connector is greater than a predetermined value, the surface of the side wall of the assembling post is easy to deform, so that the tensile member falls off from the space between the assembling post and the crimping sleeve, and the connection between the optical fiber and the single connector is loosened, thereby affecting the stability of communication connection.

SUMMERY OF THE UTILITY MODEL

An embodiment of the present invention provides an LC type connector having good lateral pull resistance and straight pull resistance.

In order to solve the technical problem, the embodiment of the utility model provides an adopt following technical scheme: the utility model provides a LC type connector, includes that the afterbody protrusion is formed with the union piece of group's post, the cover is located the crimping cover in the group's post outside and set up in support ring between group's post and the crimping cover, the outer wall of support ring with form the clearance that is used for pressing from both sides the tensile piece of tight fixed fiber between the crimping cover inner wall, the inner wall of support ring with group's post outer wall combines closely, the outer wall of support ring with crimping cover inner wall cooperation is pressed from both sides tightly tensile piece makes tensile piece can bear 70N's pulling force and maintain 1 minute and does not drop, the support ring outer wall reaches the surface hardness of crimping cover inner wall both all is greater than tensile piece's surface hardness.

Furthermore, the outer wall of the group connecting column is protruded outwards near the end edge of the free end of the group connecting column to form an anti-drop flange for preventing the support ring from dropping off from the group connecting column.

Further, the group union piece both sides have been seted up side by side and have been seted up notch and front and back and run through the logical groove of group union piece, it forms open-ended card hole to be equipped with on the front end wall that leads to the groove to run through front end wall and outside portion, LC type connector still include two afterbody outer walls be equipped with shape and card hole looks adaptation and the groove width with the connector monomer of the ring channel of the thickness looks adaptation of the front end wall that leads to the groove, the free afterbody of connector is gone into logical inslot from the notch card of side direction, just the ring channel is followed the opening card in card hole is gone into the card and is fixed a position the connector monomer.

Furthermore, the LC type connector further comprises a tail sheath connected to the tail part of the assembling piece, the tail sheath is provided with an accommodating cavity with an opening formed in the front end face, and the tail part of the assembling piece penetrates through the opening to be inserted into the accommodating cavity and is fixedly connected with the tail sheath.

Furthermore, the front ends of the side walls on the two sides of the opening of the tail sheath extend forwards to form baffles with preset lengths, and the front end edges of the baffles are positioned on the outer sides of the front end walls of the through grooves so as to limit the connector single body in the through grooves.

Furthermore, the side wall of the tail part of the assembling and connecting piece is provided with a convex clamping hook, and a fastening hole clamped with the clamping hook is arranged on the baffle plate corresponding to the position of the clamping hook.

Furthermore, the outer wall of one side of the free end of the connector monomer protrudes towards the assembling piece, inclines and extends outwards to form an elastic buckling arm, and the outer side wall of the assembling piece is provided with an elastic pressing part which inclines and extends outwards towards the elastic buckling arm and extends outwards towards the tail end of the elastic buckling arm to be used for pressing the elastic buckling arm.

Furthermore, wire passing grooves communicated with the through grooves on the corresponding sides are respectively concavely arranged on two sides of the assembling column.

Adopt above-mentioned technical scheme, the embodiment of the utility model provides a following beneficial effect has at least: the embodiment of the utility model has the advantages that the support ring is tightly sleeved on the assembly column, so that the support ring and the assembly column form a rigid whole, the deformation of the assembly column when the LC type connector is subjected to a larger lateral pulling force is reduced, the fracture between the tail part of the assembly piece and the assembly column is prevented, and the LC type connector has good lateral pulling resistance; and a gap for clamping and fixing the tensile piece is formed between the outer wall of the support ring and the inner wall of the crimping sleeve, and the surface hardness of the outer wall of the support ring and the surface hardness of the inner wall of the crimping sleeve are both greater than the surface hardness of the tensile piece, so that when the LC type connector is subjected to a larger straight pulling force, the outer wall of the support ring and the inner wall of the crimping sleeve are not easy to deform and wear, the tensile piece cannot be loosened, the LC type connector has good straight pulling resistance, and specifically, the tensile property detection qualification standard that the tensile piece bears 70N pulling force and is maintained for 1 minute without falling off can be met.

Drawings

Fig. 1 is a schematic perspective view of an alternative embodiment of the LC type connector according to the present invention in a disassembled state.

Fig. 2 is a perspective view of an alternative embodiment of the LC type connector of the present invention in an assembled state.

Fig. 3 is a schematic cross-sectional view of an alternative embodiment of the LC type connector of the present invention.

Fig. 4 is an enlarged view of a in fig. 3.

Fig. 5 is a schematic cross-sectional view of another alternative embodiment of the LC type connector of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the following illustrative embodiments and description are only intended to illustrate the present invention, and are not intended as a limitation of the present invention, and that features of the embodiments and examples may be combined with each other without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

As shown in fig. 1 and 3-4, an optional embodiment of the present invention provides an LC type connector, including the assembly member 1 whose tail protrudes to form an assembly post 11, the crimping sleeve 2 covering the outside of the assembly post 11 and the support ring 3 disposed between the assembly post 11 and the crimping sleeve 2, a gap is formed between the outer wall of the support ring 3 and the inner wall of the crimping sleeve 2 for clamping a tensile member (not shown) for fixing an optical fiber, the inner wall of the support ring 3 is tightly combined with the outer wall of the assembly post 11, the outer wall of the support ring 3 is tightly combined with the inner wall of the crimping sleeve 2, the outer wall of the support ring 3 and the inner wall of the crimping sleeve 2 cooperate to clamp the tensile member so that the tensile member can bear 70N tension and maintain for 1 minute without falling off, and the surface hardness of both the outer wall of the support ring 3 and the inner wall of the crimping sleeve 2 is greater than the surface hardness of the.

The embodiment of the utility model provides a through close coupling a support ring 3 on the montage post 11, make support ring 3 and montage post 11 form a rigid whole, reduce the deformation that montage post 11 produced when LC type connector receives great lateral pull, prevent to split between assembly 1 afterbody and the montage post 11, make LC type connector have good anti lateral pull ability; and a gap for clamping and fixing the tensile member (such as aramid fiber bundles) is formed between the outer wall of the support ring 3 and the inner wall of the crimping sleeve 2, and because the surface hardness of the outer wall of the support ring 3 and the surface hardness of the inner wall of the crimping sleeve 2 are both greater than that of the tensile member, when the LC type connector is subjected to a larger straight pulling force, both the outer wall of the support ring 3 and the inner wall of the crimping sleeve 2 are not easy to deform and wear, so that the tensile member cannot be loosened, the LC type connector has good straight pulling resistance, and specifically, the qualified standard of tensile property detection that the tensile member bears 70N pulling force and does not fall off within 1 minute can be met.

In another alternative embodiment of the present invention, as shown in fig. 4, the outer wall of the group post 11 is further protruded outward near the free end of the group post 11 to form a separation-preventing flange 111 for preventing the support ring 3 from separating from the group post 11.

In this embodiment, when the support ring 3 is about to be removed from the assembly post 11 to the position of the anti-slip flange 111, the anti-slip flange 111 abuts against one end of the support ring 3 to stop the support ring 3 from moving continuously in the outer direction of the assembly post 11, thereby preventing the support ring 3 from being removed from the assembly post 11.

In another optional embodiment of the present invention, as shown in fig. 1 and 5, the two sides of the assembly member 1 are disposed side by side with a through groove 12 that is disposed in the lateral direction and runs through the assembly member 1, a card hole 121 that runs through the front end wall and forms an opening is disposed on the front end wall of the through groove 12, the LC type connector further includes two connector units 4 that have an annular groove 42 whose outer wall is disposed in the shape of the annular groove 42 that is adapted to the card hole 121 and whose width is adapted to the thickness of the front end wall of the through groove 12, the tail of the connector unit 4 is inserted into the through groove 12 from the lateral direction, and the annular groove 42 is inserted into the card hole 121 from the opening of the card hole 121 to position the connector unit 4.

In this embodiment, the LC type connector is butted with the adapter through the connector unit 4 to complete signal transmission, the connector unit 4 is clamped into the clamping hole 121 at the front end of the through groove 12 through the annular groove 42 at the tail part to respectively load the connector unit 4 into the two sides of the assembling member 1 to complete positioning and installation, the annular groove 42 is matched with the clamping hole 121 to ensure that the connector unit 4 cannot move back and forth relative to the assembling member 1 after being assembled with the assembling member 1, the stability of the connector unit 4 is ensured, and the data transmission stability of the LC type connector when being butted with the adapter is ensured.

In yet another alternative embodiment of the present invention, as shown in fig. 1-3, the LC type connector further includes a tail sheath 5 connected to the tail of the assembly member 1, the tail sheath 5 has a receiving cavity 50 with an opening at the front end surface, and the tail of the assembly member 1 passes through the opening and is inserted into the receiving cavity 50 and is connected and fixed with the tail sheath 5.

In this embodiment, the tail jacket 5 is inserted at the tail of the connector 1 to protect the optical fiber and the tensile member extending from the tail of the connector 1, and on the other hand, the integrity and the sealing performance of the whole LC type connector can be ensured.

In still another alternative embodiment of the present invention, as shown in fig. 1 and fig. 2, the front ends of the side walls on both sides of the opening of the tail sheath 5 extend forward by a predetermined length of the baffle 51, and the front end edge of the baffle 51 is located outside the front end wall of the through groove 12 to limit the connector unit 4 in the through groove 12.

In this embodiment, the baffle 51 covers the opening of the through groove 12, so that a sealed space is formed among the baffle 51, the side wall of the through groove 12, the tail sheath 5 and the tail of the connector unit 4, thereby ensuring the sealing performance inside the LC-type connector.

In another alternative embodiment of the present invention, as shown in fig. 1 and fig. 2, the side wall of the tail portion of the assembly member 1 is provided with a convex hook 14, and the baffle 51 is provided with a fastening hole 511 corresponding to the hook 14 and engaged with the hook 14.

In this embodiment, the hook 14 of the assembly 1 is engaged with the fastening hole 511 of the shutter 51, so that the shutter 51 can be stably fastened to the notch of the through groove 12, and the LC connector can be prevented from being damaged in sealing performance due to the shutter 51 falling off.

In another alternative embodiment of the present invention, as shown in fig. 1 and fig. 2, the outer wall of the free end of the connector unit 4 is protruded to incline and extend outward toward the assembling member 1 to form an elastic button arm 41, and the outer wall of the assembling member 1 is provided with an elastic pressing portion 13 inclined outward toward the elastic button arm 41 to extend outward toward the outer side of the end of the elastic button arm 41 for pressing and operating the elastic button arm 41.

In this embodiment, the elastic buckle arms 41 are used for being buckled with the adapter, and the free ends of the elastic pressing portions 13 are located at the outer sides of the free ends of the two elastic buckle arms 41, that is, the two elastic buckle arms 41 can be pressed simultaneously by pressing the elastic pressing portions 13, so that the LC-type connector and the adapter can be conveniently disassembled and assembled.

In another alternative embodiment of the present invention, as shown in fig. 1 and fig. 5, the two sides of the group connecting post 11 are respectively and concavely provided with a wire passing groove 112 communicated with the through groove 12 of the corresponding side, and the wire passing groove 112 is used for the optical fiber to extend into the through groove 12 from the outside to be connected with the connector unit 4 to complete signal transmission.

The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention, and these forms are within the scope of the present invention.

Claims

1. The utility model provides a LC type connector, is located including afterbody protrusion be formed with the union piece and the cover of group's union post the crimping cover in the group's union post outside, its characterized in that, LC type connector still including set up in support ring between group's union post and the crimping cover, the outer wall of support ring with form the clearance that is used for pressing from both sides the tensile piece of fastening fixed optical fiber between the crimping cover inner wall, the inner wall of support ring with group's union post outer wall combines closely, the outer wall of support ring with the crimping cover inner wall combines closely, the outer wall of support ring with the cooperation of crimping cover inner wall is pressed from both sides tightly tensile piece makes tensile piece can bear 70N pulling force and maintain 1 minute and does not drop, the support ring outer wall with the surface hardness of crimping cover inner wall both is greater than tensile piece's surface hardness.

2. The LC type connector of claim 1 wherein said outer wall of said plurality of posts further projects outwardly against the free end edge of said plurality of posts to form a retaining flange for preventing said support ring from falling off said plurality of posts.

3. The LC type connector according to claim 1, wherein through grooves are formed in the two sides of the assembly member in parallel, notches are formed in the lateral direction, the through grooves penetrate through the assembly member in the front and back directions, clamping holes penetrating through the front end wall and forming an opening in the outer side portion are formed in the front end wall of each through groove, the LC type connector further comprises two connector monomers, the outer walls of the tail portions of the connector monomers are provided with annular grooves, the shapes of the annular grooves are matched with the clamping holes, the groove widths of the annular grooves are matched with the thicknesses of the front end wall of each through groove, the tails of the connector monomers are clamped into the through grooves from the lateral notches, and the annular grooves are clamped into the clamping holes from the openings of the clamping holes.

4. The LC-type connector of claim 3 further comprising a tail boot coupled to the rear portion of the assembly, the tail boot having an open receiving cavity at a front face, the rear portion of the assembly being inserted through the open receiving cavity and secured to the tail boot.

5. The LC-type connector of claim 4, wherein the front ends of the side walls of the two sides of the opening of the tail boot extend forward by a predetermined length of a baffle, and the front end edge of the baffle is located outside the front end wall of the through slot to limit the connector unit in the through slot.

6. The LC-type connector of claim 5, wherein the side wall of the tail of the connector is provided with a convex hook, and the position of the baffle corresponding to the hook is provided with a buckling hole for buckling with the hook.

7. The LC type connector according to claim 3, wherein an outer wall of the free end of the connector unit is formed with a protrusion extending obliquely outward toward the assembling member to form an elastic latching arm, and an outer wall of the assembling member is provided with an elastic pressing portion extending obliquely outward toward the elastic latching arm to an outer side portion of a distal end of the elastic latching arm for pressing the elastic latching arm.

8. The LC-type connector of claim 3, wherein said set of posts are recessed with wire passing grooves on both sides thereof, respectively, in communication with said through grooves on the respective sides.