LC type precision plugging optical fiber adapter

Abstract

The utility model relates to the field of optical fiber adapters, in particular to an LC type precision plug-in optical fiber adapter, which comprises a shell, a socket with two through ends is formed in the shell, a connecting sleeve is plugged in the socket, two ends of the connecting sleeve are concentrically sleeved with wiring sleeves, the wiring sleeves are detachably connected with sealing plates, the shell is connected with an elastic sheet, and the elastic sheet is connected with the shell. The two ends of the elastic piece are bent towards the two sides of the shell to form side wings, the surfaces of the side wings are bent to form elastic clamping jaws, a positioning piece is formed on the side face of the shell, one end of the positioning piece extends towards the elastic clamping jaws, a containing notch is formed in the side face of the shell, and a reset spring is arranged in the containing notch. According to the utility model, the reset spring and the positioning sheet generate a reset springback effect, so that the positioning sheet drives the elastic clamping jaw and the installation position to carry out stable clamping installation, the elastic clamping jaw is prevented from loosening or falling off in the use process under the action of the positioning sheet and the reset spring, and the stability and the precision of adapter connection are enhanced.

Description

Technical Field

[0001] The utility model relates to the field of optical fiber adapters, in particular to an LC type precision plug-in optical fiber adapter. Background Art

[0002] Fiber optic adapter is an important network device used to connect different types of fiber optic connectors to achieve connection between optical fibers. It usually includes two connectors, one connector is used to connect optical fibers, and the other connector is used to connect other devices, such as fiber optic transceivers, fiber optic switches, fiber optic routers, etc. Fiber optic adapters can achieve interconnection between different types of fiber optic connectors, such as SC, ST, LC, FC, etc., to meet the connection requirements between different devices. Fiber optic adapters are widely used in telecommunication networks, cable TV networks, user loop systems, regional networks and other fields.

[0003] Among the many types of fiber optic adapters, the LC fiber optic adapter is a miniaturized fiber optic adapter with the advantages of compact structure, convenient connection, and low insertion loss. Therefore, it has been widely used in the field of fiber optic communications.

[0004] The existing LC type fiber optic adapter is usually a plug-in structure in structure, which is convenient for installation and removal. However, the existing plug-in fixing structure is only a simple spring clip for clamping. The clamping of the spring clip usually has a poor plug-in clamping accuracy during the plug-in and use of the fiber optic adapter. In the plug-in process, the spring clip is generally clamped by its own elasticity, but the spring clip is prone to deformation after long-term use, which makes it easy to loosen during the plug-in and pull-out process, so that the stability and precision of the fiber optic adapter during connection are usually poor, which is not conducive to the stable use of the LC fiber optic adapter. In addition, due to the small size of the LC type fiber optic adapter, its internal connecting components are easily affected by the external environment, which makes it easy for external dust, humidity and other foreign matter to invade the adapter's socket, affecting the performance and stability of the fiber optic adapter. Utility Model Content

[0005] The purpose of the utility model is to solve the above defects and provide an LC type precision plug-in optical fiber adapter to solve the technical problems that the plug-in adapter in the above background technology is prone to loosening, affecting the stability of the precision connection of the optical fiber adapter and the poor sealing protection effect of the existing connection.

[0006] The purpose of the utility model is achieved by the following methods:

[0007] The LC type precision plug-in optical fiber adapter includes a shell, a socket with two ends passing through is formed inside the shell, a connecting sleeve is inserted in the socket, the two ends of the connecting sleeve extend to the two ends of the socket respectively, and the two ends of the connecting sleeve are concentrically sleeved with wiring sleeves, and the wiring sleeve is detachably connected to a sealing plate, a spring piece is connected to the shell, the two ends of the spring piece are bent toward the two sides of the shell to form side wings, the surfaces of the side wings are bent to form elastic claws, a positioning piece is formed on the side of the shell, one end of the positioning piece extends toward the elastic claw, and a positioning protrusion is formed at the end of the positioning piece close to the elastic claw, and a buckle protrusion that interlocks with the positioning protrusion is formed on the side of the elastic claw, a receiving slot is opened on the side of the shell, a reset spring is arranged in the receiving slot, and one end of the reset spring extends toward the side of the positioning piece and is connected to the positioning piece.

[0008] Further in the above description, a mounting groove is formed at the bottom of the shell, two ends of the mounting groove extend to two sides of the shell, and the spring piece is nested and installed in the mounting groove.

[0009] Further in the above description, the other end of the positioning piece is integrally formed with the side of the shell, a positioning column is formed on the side of the positioning piece, and the reset spring is located between the accommodating slots of the positioning piece shell, one end of the reset spring contacts the bottom wall of the accommodating slot, and the other end of the reset spring is sleeved with the positioning column, and the positioning protrusion at the end of the positioning piece and the snap protrusion of the elastic claw are engaged with each other, so that when the adapter is plugged in and installed, the elastic claw is squeezed and plugged into the corresponding installation position, and the snap of the elastic claw and the positioning piece compresses the reset spring. After plug-in assembly, the compressed reset spring resets the positioning piece, thereby enhancing the resetting effect of the elastic claw through the positioning piece, thereby enhancing the stability and reliability of the adapter insertion.

[0010] Further in the above description, the cross-section of the positioning piece is inclined, and the outer surface of the positioning piece protrudes outward to form a pressing portion, and the surface of the pressing portion is provided with an anti-slip groove. The positioning piece can be pressed by the set pressing portion to compress the return spring, making it easier to insert the adapter into the installation position, thereby improving the convenience of connection.

[0011] Further in the above description, positioning flanges are provided on both sides of the shell, and avoidance grooves for avoiding the positioning pieces are opened on the sides of the positioning flanges. One end of the shell is inserted into the corresponding installation position and is abutted and positioned by the positioning flange.

[0012] Further in the above description, a positioning end is formed on the inner wall of the socket, a card-connecting plug is provided on the outer surface of the wiring sleeve, the interior of the sealing plate is connected to the card-connecting groove through a through hole, and a positioning groove that is matched with the positioning end is provided on the side of the sealing plate. The sealing plate is card-connected to the wiring sleeve so that the wiring sleeve and the connecting sleeve are sleeved, and the sealing plate is inserted into the socket, and the positioning groove on the side of the sealing plate is matched with the positioning end of the inner wall of the buckle, so that the sealing plate and the socket can be sealed, thereby reducing the entry of external dust and foreign matter into the socket and enhancing the sealing and protection effect of the adapter.

[0013] Further in the above description, a positioning buckle is formed on the outer side of the claw.

[0014] The beneficial effects of the utility model are as follows: a detachable sealing plate is sleeved on the wiring sleeve, so that the sealing plate is inserted into the notch, thereby playing a sealing and protective role for the notch of the shell, reducing the erosion and entry of external dust and foreign matter, preventing interference with transmission, and enhancing the stability of the connection. When the shell after the installation of the spring sheet is inserted into the corresponding installation position, the elastic claw drives the positioning sheet to form an extrusion, and the reset spring on the side of the positioning sheet is compressed, so that the shell can be conveniently inserted and installed in the corresponding installation position. At this time, the reset spring produces a reset rebound effect on the positioning sheet, so that the positioning sheet drives the elastic claw to stably hold and install with the installation position, and improves the precision of the optical fiber adapter and the installation position, so that the loosening of the optical fiber adapter during the plug-in and use process is reduced. The reset spring provides a stable rebound force for the elastic claw, and the elastic effect of the elastic claw and the positioning sheet is enhanced under the mutual clamping of the positioning protrusion and the buckle protrusion, so that the elastic claw is prevented from loosening or falling off during use under the action of the positioning sheet and the reset spring, thereby enhancing the stability and reliability of the adapter connection. At the same time, the reset spring also enhances the durability of the elastic claw and extends the service life of the adapter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the embodiment from a top view;

[0016] Figure 2 This is a schematic diagram of the structure of the embodiment from an upward viewing angle;

[0017] Figure 3 is a cross-sectional view of this embodiment;

[0018] Figure 4 It is the front view of this embodiment;

[0019] The reference numerals in the figure are: 1-shell, 2-socket, 3-connecting sleeve, 4-wiring sleeve, 5-sealing plate, 6-spring, 7-side wing, 8-elastic claw, 9-positioning sheet, 10-positioning protrusion, 11-buckle protrusion, 12-accommodating notch, 13-reset spring, 14-installation groove, 15-positioning column, 16-pressing part, 17-positioning flange, 18-avoidance groove, 19-positioning end, 20-card connection, 21-positioning groove, 22-positioning buckle. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] In this embodiment, refer to Figure 1-Figure 4 The LC type precision plug-in optical fiber adapter specifically implemented includes a housing 1, a socket 2 with two ends passing through is formed inside the housing 1, a connecting sleeve 3 is inserted in the socket 2, two ends of the connecting sleeve 3 extend to the two ends of the socket 2 respectively, and both ends of the connecting sleeve 3 are concentrically sleeved with a wiring sleeve 4, and a sealing plate 5 is detachably connected to the wiring sleeve 4. A spring piece 6 is connected to the housing 1, and the two ends of the spring piece 6 are bent toward the two sides of the housing 1 to form side wings 7, and the surface of the side wing 7 is bent to form an elastic card Claw 8, a positioning piece 9 is formed on the side of the shell 1, one end of the positioning piece 9 extends toward the elastic claw 8, and a positioning protrusion 10 is formed at the end of the positioning piece 9 close to the elastic claw 8, and a buckle protrusion 11 that is engaged with the positioning protrusion 10 is formed on the side of the elastic claw 8, a receiving groove 12 is opened on the side of the shell 1, and a return spring 13 is arranged in the receiving groove 12, one end of the return spring 13 extends toward the side of the positioning piece 9 and is connected to the positioning piece 9, and a positioning buckle 22 is formed on the outer side of the claw.

[0022] A mounting groove 14 is formed at the bottom of the housing 1 , with two ends of the mounting groove 14 extending toward two sides of the housing 1 , and the spring piece 6 is nested and mounted in the mounting groove 14 .

[0023] The other end of the positioning piece 9 is integrally formed with the side of the shell 1, and a positioning column 15 is formed on the side of the positioning piece 9. The reset spring 13 is located between the accommodating slots 12 of the positioning piece 9 and the shell 1. One end of the reset spring 13 contacts the bottom wall of the accommodating slot 12, and the other end of the reset spring 13 is sleeved with the positioning column 15. The positioning protrusion 10 at the end of the positioning piece 9 and the snap protrusion 11 of the elastic claw 8 are engaged with each other, so that when the adapter is plugged in and installed, the elastic claw 8 is squeezed and plugged into the corresponding installation position, and the snap of the elastic claw 8 and the positioning piece 9 compresses the reset spring 13. After plug-in assembly, the compressed reset spring 13 resets the positioning piece 9, thereby enhancing the resetting effect of the elastic claw 8 through the positioning piece 9, thereby enhancing the stability and reliability of the adapter insertion.

[0024] The cross-section of the positioning piece 9 is inclined, and the outer surface of the positioning piece 9 protrudes outward to form a pressing portion 16, and the surface of the pressing portion 16 is provided with an anti-slip groove. The positioning piece 9 can be pressed by the set pressing portion 16 to compress the return spring 13, making it easier to insert the adapter into the installation position and improve the convenience of connection.

[0025] In some embodiments, there is no need to press the pressing portion 16 on the positioning piece 9, and the housing 1 can be directly and conveniently inserted into the installation position. The positioning piece 9 can be squeezed by the elastic claw 8, and can be tightly inserted into the installation position for clamping, so that the optical fiber adapter can be precisely connected, and the reset spring 13 can reset the elastic claw 8 through the positioning piece 9.

[0026] Positioning flanges 17 are provided on both sides of the housing 1 , and side surfaces of the positioning flanges 17 are provided with avoidance grooves 18 for avoiding the positioning sheet 9 . One end of the housing 1 is inserted into the corresponding installation position, and the positioning flange 17 abuts and positions it.

[0027] A positioning end 19 is formed on the inner wall of the socket 2, and a card-connecting plug 20 is provided on the outer surface of the wiring sleeve 4. The interior of the sealing plate 5 is connected to the card-connecting groove through a through hole, and a positioning groove 21 that is matched with the positioning end 19 is provided on the side of the sealing plate 5. The sealing plate 5 is card-connected to the wiring sleeve 4 so that the wiring sleeve 4 is sleeved with the connecting sleeve 3, and the sealing plate 5 is inserted into the socket 2, and the positioning groove 21 on the side of the sealing plate 5 is matched with the positioning end 19 of the inner wall of the buckle, so that the sealing plate 5 and the socket 2 can be sealed, thereby reducing the external dust and foreign matter from entering the socket 2 and enhancing the sealing protection effect of the adapter.

[0028] The specific use process in this embodiment is: install the spring piece 6 in the installation groove 14 of the shell 1, so that the side wings 7 at both ends of the spring piece 6 are wrapped around the two sides of the shell 1, and elastic claws 8 are formed on the side wings 7 of the spring piece 6, and the elastic claws 8 are in contact with the end of the positioning piece 9 on the shell 1, so that the positioning protrusion 10 and the buckle protrusion 11 are buckled with each other. When installing the adapter, by pressing the pressing parts 16 of the positioning pieces 9 on both sides of the shell 1, the positioning pieces 9 are pressed against the reset spring 13, so that the reset spring 13 is compressed. When the shell 1 is inserted into the installation position, the spring piece 6 can be easily inserted, and the positioning piece 9 is released. The reset spring 13 produces a reset effect, which drives the positioning piece 9 to be clamped with the elastic claws 8, so that the elastic claws 8 are precisely clamped and installed with the installation position. , so that the LC type fiber optic adapter can be precisely connected to the external installation position, so that the loosening of the fiber optic adapter during the plug-in and use process is reduced, and the stability and reliability of the elastic claw 8 and the external installation position are enhanced. Under the action of the positioning piece 9 and the reset spring 13, the elastic claw 8 is prevented from loosening or falling off during use. At the same time, the reset spring 13 also enhances the durability of the elastic claw 8 and extends the service life of the adapter. The sealing plate 5 is sleeved on the wiring sleeve 4, and the two sides of the sealing plate 5 penetrate into the notch through the positioning groove 21 and are clamped with the positioning end 19 of the inner wall of the notch, so as to play a sealing and protective role on the notch of the shell 1, reduce the erosion and entry of external dust and foreign matter, prevent interference with transmission, and improve the practicality of the LC fiber optic adapter.

[0029] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. LC type precision plug-in optical fiber adapter, including a housing, a socket with two ends passing through the housing, a connecting sleeve inserted in the socket, two ends of the connecting sleeve respectively extending to the two ends of the socket, and wiring sleeves are concentrically sleeved at both ends of the connecting sleeve, characterized in that: A sealing plate is detachably connected to the wiring sleeve, and a spring sheet is connected to the shell. Both ends of the spring sheet are bent toward both sides of the shell to form side wings, and the surfaces of the side wings are bent to form elastic claws. A positioning sheet is formed on the side of the shell, and one end of the positioning sheet extends toward the elastic claw, and a positioning protrusion is formed at the end of the positioning sheet close to the elastic claw, and a snap protrusion that interlocks with the positioning protrusion is formed on the side of the elastic claw. An accommodating groove is provided on the side of the shell, and a reset spring is provided in the accommodating groove, and one end of the reset spring extends toward the side of the positioning sheet and is connected to the positioning sheet.

2. The LC type precision plug-in optical fiber adapter according to claim 1, characterized in that: The bottom of the shell is formed with a mounting groove, two ends of the mounting groove extend to two sides of the shell, and the spring piece is nested and installed in the mounting groove.

3. The LC type precision plug-in optical fiber adapter according to claim 1, characterized in that: The other end of the positioning piece is integrally formed with the side of the shell, a positioning column is formed on the side of the positioning piece, and a return spring is located between the accommodating slots of the positioning piece shell, one end of the return spring contacts the bottom wall of the accommodating slot, and the other end of the return spring is sleeved with the positioning column.

4. The LC type precision plug-in optical fiber adapter according to claim 1, characterized in that: The cross section of the positioning piece is inclined, and the outer surface of the positioning piece protrudes outward to form a pressing portion, and the surface of the pressing portion is provided with an anti-slip groove.

5. The LC type precision plug-in optical fiber adapter according to any one of claims 1 to 4, characterized in that: Positioning flanges are arranged on both sides of the shell, and side surfaces of the positioning flanges are provided with avoidance grooves for avoiding the positioning sheets.

6. The LC type precision plug-in optical fiber adapter according to any one of claims 1 to 4, characterized in that: The inner wall of the socket is formed with a positioning end, the outer surface of the wiring sleeve is provided with a card plug, the inside of the sealing plate is snap-connected with the card slot through a through hole, and the side of the sealing plate is provided with a positioning groove that is snap-fitted with the positioning end.

7. The LC type precision plug-in optical fiber adapter according to any one of claims 1 to 4, characterized in that: A positioning buckle is formed on the outer side of the claw.

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