LC one-cable double-core optical fiber connector with changeable polarity

Abstract

The utility model relates to the technical field of data communication, in particular to a polarity-changeable LC one-cable double-core optical fiber connector which comprises an inner support, a shell is sleeved on the outer surface of the inner support, a tail sleeve is arranged at one end of the shell, a connector frame is arranged at one end of the inner support, and the other end of the connector frame is provided with a connector. The inner support, the shell, the tail sleeve and the connector frame are movably connected. Through the arrangement of the inner support, the shell, the tail sleeve, the connector frame, the clamping and pressing groove, the rotating shaft hole, the wiring groove, the tail handle, the body frame, the outer frame, the pressing assisting piece, the observation opening, the tail sleeve support, the clamping buckle block, the clamping buckle groove, the rotating shaft and the elastic hook, the polarity of a jumper wire can be conveniently changed, high-density and small-space use is supported, use is convenient and flexible, and in the actual use process, the service life of the jumper wire is prolonged. Firstly, the shell is installed on an inner support of the connector, the tail sleeve is fixedly connected to the tail portion of the shell, the connector frame is fixedly installed on the front section of the inner support, and the connector frame is clamped in a rotating shaft hole of the inner support through a rotating shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of data communication, in particular to an LC one-cable dual-core optical fiber connector with interchangeable polarity. Background Art

[0002] Data communication is a new communication method that is the result of the combination of communication technology and computer technology. To transmit information between two places, there must be a transmission channel. According to the different transmission media, there are wired data communication and wireless data communication, but they all connect the data terminal with the computer through the transmission channel, so that the data terminals in different locations can share software, hardware and information resources. The fiber optic connector is a device for detachable connection between optical fibers. It precisely connects the two end faces of the optical fiber so that the light energy output by the transmitting optical fiber can be coupled to the receiving optical fiber to the maximum extent, and the impact on the system caused by its involvement in the optical link is minimized. This is the basic requirement of the fiber optic connector. To a certain extent, the fiber optic connector affects the reliability and various performances of the optical transmission system. According to the different transmission media, the fiber optic connector can be divided into the common single-mode and multi-mode connectors of silicon-based optical fibers, and there are other fiber optic connectors such as plastic as the transmission medium.

[0003] For example, the patent document with the announcement number CN 106383383 B discloses a one-cable dual-core LC optical fiber connector, including a main bracket, a core assembly, a spring, a heat shrink protective tube, an inner bracket, a base, a tail handle, an outer shell, and a tail sleeve; wherein the tail sleeve is connected to the outer shell, the two bases are matched up and down, and the two inner brackets are embedded in the base, and the positioning points in the main bracket are snapped with the positioning holes in the adapter; an optical cable is divided into two cores in the base, which are respectively connected to the two main brackets. Advantages: (1) The buckle on the elastic arm is snapped with the buckle hole on the outer shell, so that the elastic arm can be deformed and lowered by pulling the tail sleeve, so that the LC connector is detached from the adapter; (2) The inner bracket can be rotated on the base, the outer shell can be pulled out, and the A and B polarities can be directly changed by rotating the inner bracket, which can play the role of eliminating the need to disassemble the polarity; (3) The structure is simple and the operation is convenient, which facilitates the plugging and unplugging of the LC optical fiber connector in a small space, can save the operating space to the greatest extent, and improve the port usage density in the communication equipment.

[0004] However, in existing optical fiber communications, a large number of LC two-core patch cords are used, and the cables of such patch cords are often in an 8-shaped structure, that is, two single-core cables are combined to form an 8-shaped optical cable, and the connectors at both ends of the patch cord are two LC single-connector connectors that are terminated and then merged together. With the improvement of communication speed and capacity, the density of connector use is also getting higher and higher, and it is necessary to integrate and place as many cable connectors as possible in a limited space. However, due to the physical shape limitations of traditional optical cables of this type, and with the increase in connector installation density, the space occupied by the cables is getting larger and larger, which cannot meet daily use needs. Therefore, it is urgent to design a polarity-changeable LC single-cable two-core optical fiber connector to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a polarity-changeable LC one-cable dual-core optical fiber connector to solve the problem mentioned in the above background technology that a large number of LC dual-core jumpers are used in existing optical fiber communications, and the cables of such jumpers are often of an 8-shaped structure, that is, two single-core cables are put together to form an 8-shaped optical cable, and the connectors at both ends of the jumper are two LC single-connector connectors that are terminated and then merged together. With the improvement of communication rate and capacity, the density of connector use is getting higher and higher, and it is necessary to integrate and place as many cable connectors as possible in a limited space. However, due to the physical shape limitations of traditional optical cables of this type, and with the improvement of connector installation density, the space occupied by the cables is getting larger and larger, which cannot meet the daily use needs.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an LC single-cable dual-core optical fiber connector with interchangeable polarity, comprising an inner bracket, an outer shell is provided on the outer surface of the inner bracket, a tail sleeve is provided at one end of the outer shell, and a connector frame is provided at one end of the inner bracket, and the inner bracket, the outer shell, the tail sleeve and the connector frame are all movably connected.

[0007] Preferably, snap grooves are provided on both sides of one end of the inner bracket, a shaft hole is provided on the inner wall of the snap groove, wiring grooves are provided on both sides of the inner bracket, a tail handle is provided at the center of the other end of the inner bracket, and a main body frame is provided on both sides of the tail handle.

[0008] Preferably, an outer frame is provided on the outer surface of the shell, a pressure-assisting plate is fixedly connected to the surface of the outer frame, observation ports are provided on both sides of the outer frame, a tail sleeve bracket is fixedly connected to one end of the outer frame, buckle blocks are fixedly connected to both sides of the tail sleeve bracket, and a card slot is provided at the other end of the outer frame.

[0009] Preferably, buckle grooves are provided on both sides of the tail sleeve, and the tail sleeve is adapted to the protective sleeve.

[0010] Preferably, a rotating shaft is provided at one end of the two groups of joint frames, and a spring hook is provided on the surface of the joint frame.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The polarity-changeable LC single-cable dual-core optical fiber connector can conveniently change the polarity of jumpers through the inner bracket, outer shell, tail sleeve, connector frame, snap slot, shaft hole, wiring groove, tail handle, body frame, outer frame, pressure-assisting sheet, observation port, tail sleeve bracket, snap block, snap slot, shaft and spring hook, supports high-density and small-space use, and is convenient and flexible to use. In actual use, the outer shell is first installed on the inner bracket of the connector, the tail sleeve is connected and fixed at the rear of the outer shell, and the connector frame is installed and fixed at the front section of the inner bracket. The connector frame is snapped into the shaft hole of the inner bracket through the shaft, and the shaft is fixed in the slot through the snap slot. The connector frame cannot fall off the shaft hole, and the connector frame can be rotated arbitrarily on the inner bracket through the shaft. The polarity of the jumper can be changed and adjusted by rotating the connector frame 180 degrees when needed. The inner bracket is provided with a card slot and a shaft hole for fixing the connector frame. The main body frame is provided with a wiring groove for accommodating and guiding the fixed optical fiber. At the same time, a tail handle is provided for fixing the cable sheath and reinforcement. The overall inner bracket connects and supports the connector frame, the outer shell and other components into a whole. The outer shell is fixed to the inner bracket by wrapping the outer frame, and is fixed to the left and right by snapping the buckle block to the main body frame, and the outer shell is tilted The buckle block on the outer shell can be easily removed from the inner bracket, and the spring hook on the connector frame can be pressed by the auxiliary pressure piece. An observation port is provided on the side of the outer shell, through which the color and state of the cable in the wiring trough on the inner bracket can be observed, so as to judge the polarity of the cable. At the same time, a tail sleeve bracket and a buckle block are provided at the rear of the outer shell to fix the tail sleeve. The tail sleeve is provided with a buckle groove, and the buckle groove can be inserted into the slot on the outer shell to effectively fix the tail sleeve on the tail sleeve bracket. This new LC two-core connector can support the merging of 2-core optical fibers into one optical cable for termination, reducing the space occupied by the cable. At the same time, it can also support the adjustment of the polarity of the double-core jumper. The structure is reliable and easy to use. At the same time, through this double-core LC connector, the problem that the traditional double-core 8-shaped jumper is not a round cable and the cable is easy to twist and difficult to wire during use is solved. Through the innovative structural design, the LC double-core connector can support the use of one cable with two cores, which reflects the practicality of the equipment design. This patented product is easy and flexible to use. Under the premise of being fully compatible with the traditional jumper usage, the jumper polarity can be easily changed, and the space occupied by the finished jumper cable is also reduced. It supports higher-density communication use and reflects the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is an overall schematic diagram of the structure of the inner bracket, outer shell, tail sleeve and joint frame of the utility model;

[0014] Figure 2 It is an exploded schematic diagram of the structure of the inner bracket, outer shell, tail sleeve and joint frame of the utility model;

[0015] Figure 3 It is an overall schematic diagram of the internal support structure of the utility model;

[0016] Figure 4 It is an overall schematic diagram of the housing structure of the utility model;

[0017] Figure 5 It is an overall schematic diagram of the tail sleeve structure of the utility model;

[0018] Figure 6 It is an overall schematic diagram of the joint frame structure of the utility model.

[0019] In the figure: 1. inner bracket; 2. outer shell; 3. tail sleeve; 4. connector frame; 1-1. snap slot; 1-2. shaft hole; 1-3. wiring slot; 1-4. tail handle; 1-5. main body frame; 2-1. outer frame; 2-2. pressure-assisting plate; 2-3. observation port; 2-4. tail sleeve bracket; 2-5. buckle block; 2-6. slot; 3-1. buckle slot; 4-1. shaft; 4-2. spring hook. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-6 , an embodiment provided by the utility model:

[0022] A polarity-changeable LC single-cable dual-core optical fiber connector comprises an inner bracket 1, an outer shell 2 is sleeved on the outer surface of the inner bracket 1, a tail sleeve 3 is arranged at one end of the outer shell 2, a joint frame 4 is arranged at one end of the inner bracket 1, the inner bracket 1, the outer shell 2, the tail sleeve 3 and the joint frame 4 are all movably connected, a card slot 1-1 is provided on both sides of one end of the inner bracket 1, a rotating shaft hole 1-2 is provided on the inner wall of the card slot 1-1, a wiring groove 1-3 is provided on both sides of the inner bracket 1, a tail handle 1-4 is provided at the center of the other end of the inner bracket 1, a main body frame 1-5 is provided on both sides of the tail handle 1-4, an outer frame 2-1 is provided on the outer surface of the outer shell 2, a pressure-assisting sheet 2-2 is fixedly connected to the surface of the outer frame 2-1, observation ports 2-3 are provided on both sides of the outer frame 2-1, one end of the outer frame 2-1 is fixedly connected to a tail sleeve bracket 2-4, buckle blocks 2-5 are fixedly connected to both sides of the tail sleeve bracket 2-4, a card slot 2-6 is provided at the other end of the outer frame 2-1, and the tail sleeve 3 The outer shell 2 is fixed to the inner bracket 1 by wrapping it with the outer frame 2-1, and is fixed to the left and right sides by snapping the snap blocks 2-5 on the main body frame 1-5. The outer shell 2 can be conveniently removed from the inner bracket 1 by tilting the snap blocks 2-5 on the outer shell 2, and the snap hooks on the connector frame 4 can be pressed by the pressure-assisting sheet 2-2. An observation port 2-3 is provided on the side of the outer shell 2, through which the color and state of the cable in the wiring groove 1-3 on the inner bracket 1 can be observed, so as to judge the polarity of the cable. At the same time, a tail sleeve bracket 2-4 and a snap block 2-5 are provided at the rear of the outer shell 2 for fixing the tail sleeve 3. The tail sleeve 3 is provided with a snap slot 3-1, and the snap slot 3-1 can be inserted into the snap slot 2-6 on the outer shell 2, so as to effectively fix the tail sleeve 3 on the tail sleeve bracket 2-4.

[0023] Working principle: When in use, the user first installs the outer shell 2 on the inner bracket 1 of the connector, and the tail sleeve 3 is connected and fixed to the tail of the outer shell 2. The connector frame 4 is installed and fixed to the front section of the inner bracket 1. The connector frame 4 is connected to the shaft hole 1-2 of the inner bracket 1 through the shaft 4-1. The shaft 4-1 is fixed in the shaft hole 1-2 through the clamping groove 1-1 and cannot fall off. At the same time, the connector frame 4 can be rotated arbitrarily on the inner bracket 1 through the shaft 4-1. The polarity of the jumper can be changed and adjusted by rotating the connector frame 4 180 degrees when needed. The inner bracket 1 is provided with a clamping groove 1-1 and a shaft hole 1-2 for The main body frame 1-5 is provided with a wiring groove 1-3 for accommodating and guiding the fixed optical fiber, and a tail handle 1-4 is provided for fixing the cable sheath and reinforcement. The overall inner bracket 1 plays the role of connecting and supporting the connector frame 4, the outer shell 2 and other components into a whole. The outer shell 2 is wrapped and fixed on the inner bracket 1 through the outer frame 2-1, and is connected to the main body frame 1-5 through the buckle block 2-5 to fix the left and right. The outer shell 2 can be easily removed from the inner bracket 1 by tilting the buckle block 2-5 on the outer shell 2, and the spring hook on the connector frame 4 can be connected through the auxiliary pressure piece 2-2 The outer shell 2 has a pressing effect, and an observation port 2-3 is provided on the side of the outer shell 2, through which the color and state of the cable in the wiring groove 1-3 on the inner bracket 1 can be observed, so as to judge the polarity of the cable. At the same time, a tail sleeve bracket 2-4 and a buckle block 2-5 are provided at the rear of the outer shell 2 for fixing the tail sleeve 3. A buckle groove 3-1 is provided on the tail sleeve 3, and the buckle groove 3-1 can be inserted into the buckle groove 2-6 on the outer shell 2 to effectively fix the tail sleeve 3 on the tail sleeve bracket 2-4. The new LC two-core connector can support the merging of two-core optical fibers into one optical cable for use as an end, which saves the space occupied by the cable. The time is reduced by half, and it can also support the adjustment of the polarity of the double-core jumper. The structure is reliable and easy to use. At the same time, through this double-core LC connector, the problem that the traditional double-core 8-shaped jumper is not a round cable and the cable is easy to twist and difficult to wire during use is solved. Through the innovative structural design, the LC double-core connector can support the use of one cable with two cores. This patented product is simple and flexible to use. Under the premise of being fully compatible with the usage of traditional jumpers, the jumper polarity can be easily changed. At the same time, it also reduces the space occupied by the finished jumper cable and supports higher-density communication use. The above is the entire working principle of the utility model.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A polarity-changeable LC dual-core optical fiber connector, comprising an inner bracket (1), characterized in that: The outer surface of the inner bracket (1) is sleeved with an outer shell (2), one end of the outer shell (2) is provided with a tail sleeve (3), one end of the inner bracket (1) is provided with a joint frame (4), and the inner bracket (1), the outer shell (2), the tail sleeve (3) and the joint frame (4) are all movably connected.

2. The polarity-changeable LC dual-core optical fiber connector according to claim 1, characterized in that: A clamping groove (1-1) is provided on both sides of one end of the inner bracket (1), a rotating shaft hole (1-2) is provided on the inner wall of the clamping groove (1-1), a wiring groove (1-3) is provided on both sides of the inner bracket (1), a tail handle (1-4) is provided at the center of the other end of the inner bracket (1), and a main body frame (1-5) is provided on both sides of the tail handle (1-4).

3. The polarity-changeable LC dual-core optical fiber connector according to claim 1, characterized in that: An outer frame (2-1) is provided on the outer surface of the housing (2); a pressure-assisting sheet (2-2) is fixedly connected to the surface of the outer frame (2-1); observation ports (2-3) are provided on both sides of the outer frame (2-1); a tail sleeve bracket (2-4) is fixedly connected to one end of the outer frame (2-1); buckle blocks (2-5) are fixedly connected to both sides of the tail sleeve bracket (2-4); and a clamping slot (2-6) is provided on the other end of the outer frame (2-1).

4. The polarity-changeable LC dual-core optical fiber connector according to claim 1, characterized in that: Buckle grooves (3-1) are provided on both sides of the tail sleeve (3).

5. The polarity-changeable LC dual-core optical fiber connector according to claim 1, characterized in that: One end of the two groups of joint frames (4) is provided with a rotating shaft (4-1), and the surface of the joint frame (4) is provided with a spring hook (4-2).

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