Multi-core optical fiber connector

By using a positioning sleeve and locking post design, combined with the use of sealing components, the problems of weak connection and poor contact in multi-core fiber optic connectors are solved, achieving both fast connection and good sealing.

CN224247952UActive Publication Date: 2026-05-15SHANXI GUORUIKANGCHI MEDICAL INSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI GUORUIKANGCHI MEDICAL INSTR CO LTD
Filing Date
2025-05-12
Publication Date
2026-05-15

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Abstract

The utility model discloses a multi-core optical fiber connector which comprises a connecting male end, a telescoping mechanism is fixedly arranged on the surface of the connecting male end, a positioning sleeve frame is fixedly arranged at one end of the telescoping mechanism, a connecting terminal is fixedly arranged on one side of the connecting male end, and sliding holes are formed in the periphery of the surface of the connecting terminal. A locking column head is arranged in the sliding hole in a sliding mode, and a butt joint groove is formed in the inner wall of the connecting terminal. According to the multi-core optical fiber connector, through the arrangement of the positioning sleeve frame and the locking column head, when the connecting terminal is connected with the butt-joint terminal, the positioning sleeve frame is pulled open firstly, the butt-joint terminal is inserted into the butt-joint groove of the connecting terminal, the butt-joint terminal can jack up the bottom of the locking column head, and the positioning sleeve frame is loosened; the counter-acting force of the spring enables the positioning sleeve frame to slide to the position above the locking column heads, the multiple locking column heads are limited and fixed, the effect of rapidly connecting the multi-core optical fiber is achieved, rapid disconnection is also facilitated, and use is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of optical fiber connection technology, and specifically to a multi-core optical fiber connector. Background Technology

[0002] Multicore fiber is a type of optical fiber with multiple fiber cores. Unlike traditional single-core fiber, multiple independent fiber cores are arranged within the same fiber cladding. Each fiber core can transmit optical signals; therefore, multicore fiber can transmit multiple signals simultaneously within the same fiber, thus improving transmission efficiency and bandwidth. Multicore fiber is often spliced ​​using connectors.

[0003] The multi-core fiber optic connector disclosed in announcement number CN202904070U, although it solves the problem of easy damage to the optical fiber due to direct branching of two-core optical cables at the branch point, and is simple and convenient to install.

[0004] However, this multi-core fiber optic connector has the following disadvantages: the connector uses a threaded connection, and frequent disassembly and assembly can easily cause thread wear, resulting in an unstable connection and a short service life. In addition, the threaded connection is also prone to loosening when subjected to external vibration, leading to poor connector contact. Utility Model Content

[0005] The technical problem to be solved by this utility model is as follows: When the connector is connected by a threaded connection, frequent disassembly and assembly can easily cause thread wear, resulting in an unstable connection and a short service life. In addition, the threaded connection is also prone to loosening when subjected to external vibration, leading to poor contact of the connector.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A multi-core fiber optic connector includes a male connector, a telescopic mechanism fixedly disposed on the surface of the male connector, a positioning sleeve fixedly disposed at one end of the telescopic mechanism, a connector terminal fixedly disposed on one side of the male connector, sliding holes being formed around the surface of the connector terminal, a locking post being slidably disposed inside the sliding holes, a mating groove being formed on the inner wall of the connector terminal, a mating terminal being inserted into the mating groove, a sealing component being sleeved on the surface of the mating terminal, and a female connector fixedly disposed on one side of the mating terminal.

[0008] As a further embodiment of this utility model: the telescopic mechanism includes a fixed tube, a telescopic tube, and a spring. The fixed tube is fixedly disposed on the surface of the male end, the telescopic tube is slidably disposed inside the fixed tube, and the spring is sleeved on the surface of the fixed tube.

[0009] As a further embodiment of this utility model: the sealing assembly includes a rubber gasket and a silicone gasket, the rubber gasket being sleeved on the surface of the mating terminal, and the silicone gasket being fixedly disposed on one side of the rubber gasket.

[0010] As a further embodiment of this utility model: the number of locking pins and sliding holes are several groups, and the several groups of locking pins and sliding holes are distributed in a rectangular array.

[0011] As a further embodiment of this utility model: locking holes are provided around the surface of the mating terminal, and the locking holes are adapted to the locking pin.

[0012] As a further embodiment of this utility model: one end of the male connector is electrically connected to a multi-core optical fiber A, and one end of the female connector is electrically connected to a multi-core optical fiber B.

[0013] As a further embodiment of this utility model: the number of telescopic mechanisms is four sets, the four sets of telescopic mechanisms are distributed in a rectangular array, and the positioning sleeve is slidably disposed on the surface of the connecting terminal.

[0014] The beneficial effects of this utility model are:

[0015] 1. By using the positioning sleeve and locking pin, when connecting the connecting terminal and the mating terminal, first pull open the positioning sleeve, insert the mating terminal into the mating groove of the connecting terminal, and the mating terminal will push up the bottom of the locking pin, releasing the positioning sleeve. The reaction force of the spring causes the positioning sleeve to slide above the locking pin, limiting and fixing multiple locking pins, achieving the effect of quickly connecting multi-core optical fibers, and also facilitating quick disconnection, making it convenient to use.

[0016] 2. By setting up the sealing components, rubber gaskets and silicone gaskets are placed on the surface of the mating terminals. After the mating terminals and connecting terminals are tightened, the rubber gaskets and silicone gaskets seal the connection. Furthermore, the silicone gaskets, due to their good flexibility, will fill any gaps when compressed, achieving a good sealing effect at the multi-core fiber connection, which is convenient for dust and water prevention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the positioning sleeve structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the telescopic mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the locking column head structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the sealing component structure of this utility model.

[0023] In the diagram: 1. Male connector; 2. Telescopic mechanism; 201. Fixed tube; 202. Telescopic tube; 203. Spring; 3. Positioning sleeve; 4. Connecting terminal; 5. Locking post; 6. Connecting terminal; 7. Sealing assembly; 701. Rubber gasket; 702. Silicone gasket; 8. Connecting female connector; 9. A multi-core optical fiber; 10. B multi-core optical fiber. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-5 As shown, a multi-core fiber optic connector includes a male connector 1, a telescopic mechanism 2 fixedly disposed on the surface of the male connector 1, a positioning frame 3 fixedly disposed at one end of the telescopic mechanism 2, a connector terminal 4 fixedly disposed on one side of the male connector 1, and sliding holes formed around the surface of the connector terminal 4. Locking pins 5 are slidably disposed inside the sliding holes. Through the positioning frame 3 and locking pins 5, when connecting the connector terminal 4 and the mating terminal 6, the positioning frame 3 is first pulled open, and the mating terminal 6 is inserted into the mating groove of the connector terminal 4. The mating terminal 6 will push up the bottom of the locking pins 5, releasing the positioning frame 3. The reaction force of the spring 203 causes the positioning frame 3 to slide above the locking pins 5, limiting and fixing multiple locking pins 5. This achieves the effect of quickly connecting multi-core optical fibers and also facilitates quick disconnection, making it convenient to use.

[0026] The inner wall of the connecting terminal 4 is provided with a mating groove, and the mating terminal 6 is inserted into the mating groove. The surface of the mating terminal 6 is fitted with a sealing component 7. Through the setting of the sealing component 7, the rubber gasket 701 and the silicone gasket 702 are fitted onto the surface of the mating terminal 6. After the mating terminal 6 and the connecting terminal 4 are locked together, the rubber gasket 701 and the silicone gasket 702 seal the connection. Furthermore, the silicone gasket 702 will fill any gaps that may exist due to its good flexibility when compressed, thus achieving a good sealing effect at the connection of the multi-core optical fiber, which is convenient for dust and water prevention. A mating female end 8 is fixedly provided on one side of the mating terminal 6.

[0027] like Figure 3As shown, the telescopic mechanism 2 includes a fixed tube 201, a telescopic tube 202 and a spring 203. The fixed tube 201 is fixedly disposed on the surface of the connecting male end 1, the telescopic tube 202 is slidably disposed inside the fixed tube 201, and the spring 203 is sleeved on the surface of the fixed tube 201.

[0028] The telescopic mechanism 2 facilitates the telescopic movement of the positioning frame 3.

[0029] like Figure 5 As shown, the sealing assembly 7 includes a rubber gasket 701 and a silicone gasket 702. The rubber gasket 701 is fitted onto the surface of the mating terminal 6, and the silicone gasket 702 is fixedly disposed on one side of the rubber gasket 701.

[0030] With the sealing component 7, after the mating terminal 6 and the connecting terminal 4 are clamped together, the rubber gasket 701 and the silicone gasket 702 seal the connection. Furthermore, the silicone gasket 702, under pressure, will fill any gaps that may exist due to its good flexibility, thus effectively sealing the multi-core optical fiber connection.

[0031] like Figure 4 As shown, there are several sets of locking pins 5 and sliding holes, and these sets of locking pins 5 and sliding holes are distributed in a rectangular array.

[0032] The locking post 5 serves to fix the mating terminal 6.

[0033] like Figure 5 As shown, locking holes are provided around the surface of the mating terminal 6, and the locking holes are compatible with the locking pin 5.

[0034] The locking hole serves to position and lock the pin 5.

[0035] like Figure 1 As shown, one end of the male terminal 1 is electrically connected to a multi-core fiber 9 (A), and the other end of the female terminal 8 is electrically connected to a multi-core fiber 10 (B).

[0036] By connecting male terminal 1 and female terminal 8, the A multi-core fiber 9 and B multi-core fiber 10 are connected.

[0037] like Figure 3 As shown, there are four sets of telescopic mechanisms 2, which are arranged in a rectangular array. The positioning frame 3 is slidably set on the surface of the connecting terminal 4.

[0038] The telescopic mechanism 2 facilitates the sliding of the positioning frame 3.

[0039] The working principle of this utility model is as follows: Rubber gasket 701 and silicone gasket 702 are fitted onto the surface of the mating terminal 6. When connecting the connecting terminal 4 and the mating terminal 6, the positioning sleeve 3 is first pulled open, and the mating terminal 6 is inserted into the mating groove of the connecting terminal 4. The mating terminal 6 will push up the bottom of the locking pin 5, releasing the positioning sleeve 3. The reaction force of the spring 203 causes the positioning sleeve 3 to slide above the locking pin 5, limiting and fixing multiple locking pins 5, quickly connecting multi-core optical fibers, and also facilitating quick disconnection, making it convenient to use.

[0040] After the mating terminal 6 and the connecting terminal 4 are clamped together, the rubber gasket 701 and the silicone gasket 702 seal the connection. The silicone gasket 702, under pressure, will fill any gaps due to its good flexibility, thus sealing the multi-core fiber connection well and facilitating dust and water protection.

[0041] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0042] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-core fiber optic connector, comprising a male connector (1), characterized in that: A telescopic mechanism (2) is fixedly provided on the surface of the male connector (1). A positioning sleeve (3) is fixedly provided at one end of the telescopic mechanism (2). A connecting terminal (4) is fixedly provided on one side of the male connector (1). Sliding holes are provided around the surface of the connecting terminal (4). A locking pin (5) is slidably provided inside the sliding hole. A mating groove is provided on the inner wall of the connecting terminal (4). A mating terminal (6) is inserted into the mating groove. A sealing component (7) is sleeved on the surface of the mating terminal (6). A mating female end (8) is fixedly provided on one side of the mating terminal (6).

2. A multi-core fiber optic connector according to claim 1, characterized in that, The telescopic mechanism (2) includes a fixed tube (201), a telescopic tube (202) and a spring (203). The fixed tube (201) is fixedly disposed on the surface of the male end (1), the telescopic tube (202) is slidably disposed inside the fixed tube (201), and the spring (203) is sleeved on the surface of the fixed tube (201).

3. A multi-core fiber optic connector according to claim 1, characterized in that, The sealing assembly (7) includes a rubber gasket (701) and a silicone gasket (702). The rubber gasket (701) is fitted onto the surface of the mating terminal (6), and the silicone gasket (702) is fixedly disposed on one side of the rubber gasket (701).

4. A multi-core fiber optic connector according to claim 1, characterized in that, The number of locking pins (5) and sliding holes are several groups, and the several groups of locking pins (5) and sliding holes are distributed in a rectangular array.

5. A multi-core fiber optic connector according to claim 1, characterized in that, Locking holes are provided around the surface of the docking terminal (6), and the locking holes are adapted to the locking pin (5).

6. A multi-core fiber optic connector according to claim 1, characterized in that, One end of the male connector (1) is electrically connected to a multi-core optical fiber (9), and one end of the female connector (8) is electrically connected to a multi-core optical fiber (10).

7. A multi-core fiber optic connector according to claim 1, characterized in that, The telescopic mechanism (2) consists of four sets, which are arranged in a rectangular array. The positioning frame (3) is slidably disposed on the surface of the connecting terminal (4).