A reversible duplex LC fiber optic adapter

Abstract

The application discloses a replaceable polarity duplex LC optical fiber adapter. The technical scheme comprises the following steps: a shell is provided with two side-by-side bidirectional connector sockets at one end, the bidirectional connector socket comprises a main slot matched with a connector body and a button slot matched with a connector elastic button at both ends of the main slot; a ceramic sleeve is installed in the shell through a sleeve fixing seat, and the ceramic sleeve is located on the center line of the main slot; a baffle is oppositely and rotatably installed in the bidirectional connector socket of the shell; and an elastic member is pressed on the baffle, so that the free end of the baffle rotates to the center of the bidirectional connector socket and contacts each other.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication technology, in particular to a duplex LC fiber adapter. BACKGROUND

[0002] Fiber Optic Adapter, also known as optical fiber coupler. Fiber Optic Adapter is a device for detachable (movable) connection between optical fibers. Fiber Optic Adapter can be divided into LC fiber adapter, FC fiber adapter, SC fiber adapter, etc. according to the type of joint. Duplex LC fiber adapter, as the name implies, is a kind of optical fiber adapter which connects two single LC fiber adapters in parallel. The disadvantage of the traditional duplex LC fiber adapter is that the optical fiber connector can only be inserted in one direction, and the polarity is not interchangeable, which brings inconvenience to use. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a reversible polarity duplex LC fiber adapter.

[0004] To solve the above problems, the technical scheme adopted by the present application comprises:

[0005] The shell is provided with two side-by-side bidirectional connector sockets at one end, and the bidirectional connector socket comprises a main slot adapted to the connector body and a key slot adapted to the connector elastic key at both ends of the main slot;

[0006] The ceramic sleeve is installed in the shell through the sleeve fixing seat, and the ceramic sleeve is located on the center line of the main slot;

[0007] The baffle is oppositely and rotatably installed in the bidirectional connector socket of the shell;

[0008] The elastic member applies pressure to the baffle, so that the free end of the baffle rotates towards the center of the bidirectional connector socket and contacts each other.

[0009] The reversible polarity duplex LC fiber adapter is characterized in that the baffle is provided with a locking slot corresponding to the insertion direction end of each bidirectional connector socket.

[0010] The reversible polarity duplex LC fiber adapter is characterized in that the baffle is provided with a locking slot corresponding to the insertion direction end of each bidirectional connector socket.

[0011] The reversible polarity duplex LC fiber adapter is characterized in that the baffle is composed of an upper baffle and a lower baffle, the free end top of the upper baffle is provided with an upper positioning slot, and the free end top of the lower baffle is provided with a lower positioning slot matched with the upper positioning slot.

[0012] The elastic member is a metal spring piece, comprising a spring piece main body connected with the shell and a spring arm arranged at the front end of the spring piece main body, and the spring arm is used to press the baffle.

[0013] The shell is provided with a cover plate at both ends of the bidirectional connector socket, the baffle and the elastic member are loaded into the shell by opening the cover plate, and the cover plate is provided with a positioning mechanism to position the elastic member.

[0014] The sleeve fixing seat is formed by butt joint of a left fixing seat and a right fixing seat, the right fixing seat is integrally formed with the shell, and the left fixing seat is riveted in the shell through a riveting plate integrally formed with the left fixing seat and passing through the bidirectional connector socket.

[0015] The riveting plate is provided with a riveting plate positioning groove at both ends.

[0016] The two baffles in the bidirectional connector socket are integrally formed.

[0017] The free end of the baffle is provided with an inclined part at the top, and the free ends of the two baffles are vertically arranged in front of the ceramic sleeve after contacting each other.

[0018] The interchangeable polarity double LC fiber adapter has the following advantages: the optical fiber connector can be inserted into the fiber adapter in the forward and reverse directions, so that the polarity of the fiber adapter is interchangeable, and the use is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] The application will be further described in detail below in combination with the drawings and specific embodiments.

[0020] Figure 1 is a structural schematic view of the interchangeable polarity double LC fiber adapter of the application;

[0021] Figure 2 is an exploded view of the interchangeable polarity double LC fiber adapter of the application;

[0022] Figure 3 is a sectional view of the interchangeable polarity double LC fiber adapter of the application;

[0023] Figure 4 is a structural schematic view of the upper baffle of the application;

[0024] Figure 5This is a schematic diagram of the structure of the lower baffle of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the elastic element of the present invention;

[0026] Figure 7 This is a schematic diagram of the relationship between the left fixing seat and the riveting plate of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the cover plate of the present invention;

[0028] Figure 9 This is a schematic diagram of the structure of the fiber optic connector of the present invention;

[0029] Figure 10 This is a schematic diagram of the connection between the optical fiber connector and the baffle of the present invention. Detailed Implementation

[0030] like Figures 1 to 10 As shown, the interchangeable polarity dual LC fiber optic adapter of the present invention includes: a housing 1, a ceramic sleeve 2, a baffle 3, and an elastic element 4. The front end of the housing 1 has two parallel bidirectional connector sockets 5, which communicate with the inner cavity of the housing 1. Each bidirectional connector socket 5 includes a main slot 7 adapted to the connector body 6 and button slots 9 located at the upper and lower ends of the main slot 7 and adapted to the connector elastic button 8. The ceramic sleeve 2 is installed inside the housing 1 via a sleeve fixing seat 10, and the ceramic sleeve 2 is located on the center line 11 of the main slot 7 to ensure accurate alignment with the fiber optic connector regardless of whether it is inserted in the forward or reverse direction. The baffle 3 is rotatably installed in the bidirectional connector sockets 5 of the housing 1 via a set of rotating shafts 25 at its front end. Ideally, the baffles 3 in the two bidirectional connector sockets 5 are integrally formed, but a separate baffle can also be provided in each bidirectional connector socket 5 as needed. The elastic element 4 applies pressure to the baffle 3, causing its free end to rotate towards the center of the bidirectional connector socket 5, and the free ends of the baffle 3 come into contact with each other. This contact between the free ends of the baffle 3 closes the fiber optic adapter, thus providing dust and laser protection (after unplugging the fiber optic connector, something needs to block the fiber optic adapter socket to prevent laser emission and potential harm to the user).

[0031] Preferably, the baffle 3 is provided with a locking groove 12 corresponding to the insertion direction end of each of the bidirectional connector sockets 5. When the fiber optic connector is inserted into the bidirectional connector socket 5 of the housing 1, it will push the baffle 3 to rotate upward. When the fiber optic connector is inserted into place, the locking groove 12 will lock the anti-retraction steps 36 at both ends of the connector elastic button 8 of the fiber optic connector, so as to prevent the fiber optic connector from falling out.

[0032] Preferably, the bottom of the baffle 3 is provided with four protruding arms 23, with each pair of protruding arms 23 located on the side wall of the bidirectional connector socket 5. When the connector is inserted into the adapter, the front end of the connector body 6 contacts the protruding arms 23 first and pushes the baffle 3 to rotate, thereby preventing the connector core end face from contacting the baffle 3, thus protecting the cleanliness of the connector core end face when inserted into the adapter.

[0033] Preferably, the baffle 3 consists of an upper baffle 13 and a lower baffle 14. The upper baffle 13 has an upper positioning groove 15 at its free end, and the lower baffle 14 has a lower positioning groove 16 at its free end that positions and engages with the upper positioning groove 15. When the upper baffle 13 and the lower baffle 14 are closed, their upper positioning grooves 15 and lower positioning grooves 16 lock together to improve the sealing and stability after closure.

[0034] Preferably, the elastic element 4 is a metal spring sheet, including a spring sheet body 17 connected to the cover plate 19 of the housing 1 and a spring arm 18 located at the front end of the spring sheet body 17, through which pressure is applied to the baffle 3. The advantage of using the metal spring sheet is that it is easy to install and the spring sheet body 17 also has a certain shielding and anti-interference function.

[0035] Preferably, the housing 1 has cover plates 19 at both ends corresponding to the bidirectional connector socket 5. The baffle 3 and the elastic element 4 are installed into the housing 1 by opening the cover plates 19, and the cover plates 19 are equipped with positioning mechanisms to position the elastic element 4. The cover plates 19 facilitate the installation of the baffle 3 and the elastic element 4. Specifically, the cover plates 19 are connected to the housing 1 by a set of snap fasteners 41 on both sides. The positioning mechanism includes at least two positioning pins 42 located at the bottom of the cover plates 19. The positioning pins 42 engage with the positioning holes 43 on the spring body 17 to improve the stability of the spring body 17 after installation.

[0036] Preferably, the sleeve fixing seat 10 is formed by connecting a left fixing seat 20 and a right fixing seat 21. The right fixing seat 21 is integrally formed with the housing 1, and the left fixing seat 20 is riveted to the housing 1 through the bidirectional connector socket 5 via a riveting plate 22 integrally formed with it. Specifically, the riveting plate 22 is riveted to the inner wall of the housing 1 via a set of riveting posts 37 on the back. This structure facilitates the installation of the sleeve fixing seat 10 and provides very high strength after installation.

[0037] Preferably, the rivet plate 22 has rivet plate positioning grooves 38 at both ends. The cover plate 19 has positioning blocks 40 that insert into the rivet plate positioning grooves 38. This improves the strength of the rivet plate 22 after installation and prevents it from falling off.

[0038] Preferably, the top of the free end of the baffle 3 is provided with an inclined portion 24. After the free ends of the two baffles 3 come into contact with each other, the two inclined portions 24 that are connected together form a planar structure and are placed vertically in front of the ceramic sleeve 2 to improve the blocking effect on the laser.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included within the protection scope of the present invention.

Claims

1. A switchable polarity dual LC fiber optic adapter, characterized in that, include: The housing (1) has two parallel bidirectional connector sockets (5) at one end. The bidirectional connector sockets (5) include a main slot (7) adapted to the connector body (6) and button slots (9) located at both ends of the main slot (7) adapted to the connector elastic buttons (8). The ceramic sleeve (2) is installed inside the housing (1) by the sleeve fixing seat (10) and the ceramic sleeve (2) is located on the center line (11) of the main slot (7); A baffle (3) is rotatably mounted in the bidirectional connector socket (5) of the housing (1); the baffle (3) is composed of an upper baffle (13) and a lower baffle (14). The upper baffle (13) has an upper positioning groove (15) at the top of its free end, and the lower baffle (14) has a lower positioning groove (16) at the top of its free end that is positioned and engaged with the upper positioning groove (15); the baffle (3) has an inclined part (24) at the top of its free end. After the free ends of the two baffles (3) come into contact with each other, they are placed vertically in front of the ceramic sleeve (2); the baffle (3) has a locking groove (12) at the insertion direction end of each bidirectional connector socket (5), and a protruding arm (23) is provided in front of the locking groove (12). The elastic element (4) is pressed against the baffle (3), causing its free end to rotate toward the center of the bidirectional connector socket (5) and come into contact with each other. The elastic element (4) is a metal spring sheet, including a spring sheet body (17) connected to the housing (1) and a spring arm (18) provided at the front end of the spring sheet body (17). The spring arm (18) is used to press against the baffle (3). When the connector body (6) is inserted, its front end contacts the convex arm (23) first and pushes the baffle (3) to rotate. When the connector body (6) is inserted into place, the locking groove (12) locks the anti-reverse steps (36) at both ends of the connector elastic button (8) of the connector body (6).

2. The switchable polarity dual LC fiber optic adapter according to claim 1, characterized in that: The housing (1) is provided with cover plates (19) at both ends corresponding to the bidirectional connector socket (5). By opening the cover plates (19), the baffle (3) and the elastic element (4) are installed into the housing (1). The cover plates (19) are provided with positioning mechanisms to position the elastic element (4).

3. The switchable polarity dual LC fiber optic adapter according to claim 1, characterized in that: The sleeve fixing seat (10) is formed by connecting the left fixing seat (20) and the right fixing seat (21). The right fixing seat (21) is integrally formed with the housing (1). The left fixing seat (20) is riveted to the housing (1) through the bidirectional connector socket (5) by the riveting plate (22) integrally formed with it.

4. The switchable polarity dual LC fiber optic adapter according to claim 3, characterized in that: The rivet plate (22) is provided with rivet plate positioning grooves (38) at both ends.

5. The switchable polarity dual LC fiber optic adapter according to claim 1, characterized in that: The baffles (3) inside the two bidirectional connector sockets (5) are integrally formed.

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