MPO optical fiber connector easy to plug and unplug

Abstract

The utility model discloses an MPO optical fiber connector easy to plug and unplug. According to the technical scheme, the connector comprises a shell, a shell sleeve arranged outside the shell in a sliding mode and an insertion core assembly movably arranged in an inner shell, a stop is arranged at the rear end of the inner shell, a first reset spring is arranged between the insertion core assembly and the stop, a second reset spring is arranged between the shell and the shell sleeve, and the second reset spring is arranged between the shell and the shell sleeve. The rear end of the shell sleeve is connected with a tail sleeve, the tail sleeve is connected with the shell sleeve through a connecting seat at the front end, the connecting seat comprises a flange, a connecting part integrally formed at the rear end of the flange and a boss integrally formed at the front end of the flange, and the tail sleeve is connected to the connecting part. The front end of the boss is provided with a positioning groove matched with the rear end of the stopper, and the two sides of the boss are provided with two buckles arranged at intervals.

Description

Technical Field

[0001] This utility model belongs to the field of optical fiber communication technology, and in particular relates to an easy-to-plug MPO optical fiber connector. Background Technology

[0002] MPO fiber optic connectors are high-density, multi-core fiber optic connectors primarily used to simplify the connection and management of multi-core fiber optic networks. The traditional MPO fiber optic connector structure includes: a housing, a slidable sleeve mounted outside the housing, and a movable ferrule assembly housed within the housing. A stop is located at the rear end of the housing, a first return spring is located between the ferrule assembly and the stop, and a second return spring is located between the housing and the sleeve. Traditionally, to remove the MPO fiber optic connector from the MPO adapter, the sleeve must be held and slid down before it can be pulled out. However, with the miniaturization of MPO fiber optic connectors and the increasing density of cabling within fiber optic cabling cabinets, it has become very difficult for installers to unlock the adapter by holding the sleeve. To address this issue, Chinese invention patent CN 110609357 A, entitled "An MPO Fiber Optic Connector for Unlocking with a Tail Sleeve," proposes a method where a movable tail sleeve is connected to the rear end of the sleeve, allowing users to unlock the MPO fiber optic connector from the adapter by holding the tail sleeve, thus simplifying operation. However, this method still has drawbacks: unstable insertion and removal, and a tendency to jam. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an MPO fiber optic connector that is easy to plug and unplug.

[0004] To solve the above problems, the technical solution adopted by this utility model includes: a housing, a slidable sleeve disposed outside the housing, and a movable insert assembly disposed inside the housing. A stop is provided at the rear end of the housing. A first return spring is provided between the insert assembly and the stop. A second return spring is provided between the housing and the sleeve. A tail sleeve is connected to the rear end of the sleeve. The tail sleeve is connected to the sleeve via a connecting seat at its front end. The connecting seat includes a flange, a connecting portion integrally formed at the rear end of the flange, and a boss integrally formed at the front end of the flange. The tail sleeve is connected to the connecting portion. The front end of the boss has a positioning groove adapted to the rear end of the stop, and two spaced-apart buckles are provided on both sides. The sleeve has a slot for connecting to the buckles, and a first gap is provided between the slot and the buckles. The rear end of the sleeve is fitted onto the boss, and a second gap is provided between the sleeve and the flange.

[0005] The easy-to-plug MPO fiber optic connector is characterized in that: the rear end of the stop is provided with a positioning protrusion that can be embedded in the positioning groove.

[0006] The easy-to-plug MPO fiber optic connector is characterized in that: a first positioning block is provided on both sides of the housing, a first positioning groove is formed between the buckles to cooperate with the first positioning block, and one end of the second reset spring is positioned on the top of the first positioning block.

[0007] The easy-to-plug MPO fiber optic connector is characterized in that: the housing has a first positioning bracket on both sides, and the housing has a second positioning bracket inside the housing that positions and cooperates with the first positioning bracket.

[0008] The easy-to-plug MPO fiber optic connector is characterized in that: at least one of the first positioning mounts has a guide rail extending from its front end, and the housing is provided with a guide rail groove that guides and cooperates with the guide rail.

[0009] The easy-to-plug MPO fiber optic connector is characterized in that: a second positioning block is provided at the rear end of the housing, and a second positioning groove is provided inside the housing to position and cooperate with the second positioning block.

[0010] The easy-to-plug MPO fiber optic connector is characterized in that: the connecting part is provided with a filler groove, and the tail sleeve is integrally formed on the connecting part by insert injection molding.

[0011] The easy-to-plug MPO fiber optic connector is characterized in that: the rear end of the tail sleeve is integrally formed with a handle.

[0012] The advantages of this easy-to-plug MPO fiber optic connector are as follows: 1. The tail sleeve is connected to the housing through double snaps on both sides of the connector base, and multiple positioning structures are provided on the connector base and the housing, making it more stable and less prone to jamming when pushing and pulling; 2. It can also be plugged and unplugged independently through the housing without increasing the plugging and unplugging resistance.

[0013] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the MPO fiber optic connector of this utility model;

[0015] Figure 2 This is an exploded view of the MPO fiber optic connector of this utility model;

[0016] Figure 3 This is a cross-sectional view of the MPO fiber optic connector of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the connector of this utility model;

[0018] Figure 5 , Figure 6This is a schematic diagram of the shell of this utility model at different angles;

[0019] Figure 7 This is a cross-sectional view of the casing of this utility model. Detailed Implementation

[0020] Reference Figure 1-7 As shown, the easy-to-plug MPO fiber optic connector of this utility model includes a housing 1, a slidable sleeve 2 disposed outside the housing 1, and a movable ferrule assembly 3 disposed inside the housing 2. A stop 4 is provided at the rear end of the housing 2, and a first return spring 5 is provided between the ferrule assembly 3 and the stop 4. A second return spring 6 is provided between the housing 1 and the sleeve 2, and the sleeve 2 is reset by the second return spring 6 after sliding down. A tail sleeve 7 is connected to the rear end of the sleeve 2. The tail sleeve 7 is connected to the sleeve 2 via a connecting seat 8 at its front end. The connecting seat 8 includes a flange 9, a connecting portion 10 integrally formed at the rear end of the flange 9, and a boss 11 integrally formed at the front end of the flange 9. The tail sleeve 7 is connected to the connecting portion 10. A positioning groove 12 is provided at the front end of the boss 11, which is adapted to the rear end of the stop 4. The rear end of the stop 4 is positioned within the positioning groove 12, thereby improving the stability of the connection between the connecting seat 8 and the housing 1. Two spaced-apart latches 13 are provided on both sides of the boss 11. The housing 2 has a slot 14 that connects to the latches 13 to improve the stability of the connection. The rear end of the housing 2 is fitted onto the boss 11 to further improve the stability of the connection. A first gap 15 is provided between the slot 14 and the latches 13, and a second gap 16 is provided between the housing 2 and the flange 9. By setting the first gap 15 and the second gap 16, in addition to inserting and removing the housing 2 through the tail sleeve 7, it can also be inserted and removed by hand. Moreover, the tail sleeve 7 will not be moved during the insertion and removal process, so the insertion and removal resistance will not be increased.

[0021] Preferably, the rear end of the stop 4 is provided with a positioning protrusion 17 that can be embedded in the positioning groove 12, so as to further improve the stability of the connection between the connecting seat 8 and the stop 4.

[0022] Preferably, the housing 1 has first positioning blocks 18 on both sides, and the buckles 13 form a first positioning groove 19 that positions and engages with the first positioning blocks 18. One end of the second return spring 6 is positioned on the top of the first positioning block 18. This further improves the stability of the connection between the connecting seat 8 and the housing 1.

[0023] Preferably, the housing 1 has first positioning brackets 20 on both sides, and the sleeve 2 has a second positioning bracket 21 that positions and cooperates with the first positioning brackets 20. During assembly: the sleeve 2 is forcibly inserted from the front end of the housing 1, and the second positioning bracket 21 is engaged with the rear end of the first positioning bracket 20 to achieve positioning of the sleeve 2.

[0024] Preferably, one of the first positioning brackets 20 has a guide rail 22 extending from its front end, and the housing 2 has a guide rail groove 23 that guides and cooperates with the guide rail 22. This allows the housing 2 to fit more accurately into the housing 1 and makes the sliding of the housing 2 more stable.

[0025] Preferably, the rear end of the housing 1 is provided with a second positioning block 24, and the inner part of the housing 2 is provided with a second positioning groove 25 that positions and cooperates with the second positioning block 24, so as to further improve the stability of the connection between the two.

[0026] Preferably, the connecting portion 10 is provided with a filling groove 26, and the tail sleeve 7 is integrally formed onto the connecting portion 10 by insert injection molding. This improves the connection strength between the tail sleeve 7 and the connecting portion 10. The tail sleeve 7 is made of soft rubber, and the connecting seat 8 is made of rigid plastic. Note: Insert injection molding is a conventional connection process.

[0027] Preferably, the rear end of the tail sleeve 7 is integrally formed with a handle 27 to facilitate the user's grip and prevent slippage.

[0028] As stated above, this is not intended to limit the present invention in any way. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An easy-to-plug MPO fiber optic connector, comprising a housing (1), a slidable sleeve (2) disposed outside the housing (1), and a movable ferrule assembly (3) disposed inside the housing (1), wherein a stop (4) is provided at the rear end of the housing (1), a first return spring (5) is provided between the ferrule assembly (3) and the stop (4), a second return spring (6) is provided between the housing (1) and the sleeve (2), and a tail sleeve (7) is connected to the rear end of the sleeve (2), characterized in that: The tail sleeve (7) is connected to the shell (2) through the connecting seat (8) at the front end. The connecting seat (8) includes a flange (9), a connecting part (10) integrally formed at the rear end of the flange (9), and a boss (11) integrally formed at the front end of the flange (9). The tail sleeve (7) is connected to the connecting part (10). The front end of the boss (11) is provided with a positioning groove (12) adapted to the rear end of the stop (4), and two buckles (13) are arranged at intervals on both sides. The shell (2) is provided with a slot (14) connected to the buckle (13), and a first gap (15) is provided between the slot (14) and the buckle (13). The rear end of the shell (2) is fitted on the boss (11), and a second gap (16) is provided between it and the flange (9).

2. The easy-to-plug MPO fiber optic connector according to claim 1, characterized in that: The rear end of the stop (4) is provided with a positioning protrusion (17) that can be embedded in the positioning groove (12).

3. The easy-to-plug MPO fiber optic connector according to claim 1, characterized in that: The housing (1) has first positioning blocks (18) on both sides, and the buckles (13) form a first positioning groove (19) that positions and cooperates with the first positioning blocks (18). One end of the second reset spring (6) is positioned on the top of the first positioning block (18).

4. The easy-to-plug MPO fiber optic connector according to claim 1, characterized in that: The housing (1) has a first positioning bracket (20) on both sides, and the housing (2) has a second positioning bracket (21) that is positioned and cooperates with the first positioning bracket (20).

5. The easy-to-plug MPO fiber optic connector according to claim 4, characterized in that: At least one of the first positioning mounts (20) has a guide rail (22) extending from its front end, and the housing (2) has a guide rail groove (23) that guides and cooperates with the guide rail (22).

6. The easy-to-plug MPO fiber optic connector according to claim 4, characterized in that: The rear end of the housing (1) is provided with a second positioning block (24), and the inner part of the housing (2) is provided with a second positioning groove (25) that is positioned and cooperates with the second positioning block (24).

7. The easy-to-plug MPO fiber optic connector according to claim 1, characterized in that: The connecting part (10) is provided with a filling groove (26), and the tail sleeve (7) is integrally formed on the connecting part (10) by insert injection molding.

8. The easy-to-plug MPO fiber optic connector according to claim 1, characterized in that: The tail sleeve (7) has a handle (27) integrally formed at the rear end.

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