MPO connector

Abstract

The MPO connector provided by the embodiment of the utility model comprises an inner shell, the side wall of the inner shell is provided with a buckle groove used for being matched with a corresponding hook of a corresponding adapter, and the tail end edge of the inner shell is further provided with a limiting flange in a protruding mode; the outer shell is movably arranged outside the inner shell in a sleeving mode and can slide in the front-back direction of the inner shell, and when the outer shell slides to the tail end of the forward stroke towards the front end of the inner shell, the outer shell is located at the covering position for correspondingly covering the buckling groove; the stop ring is sleeved at the tail end of the inner shell when the outer shell slides to the covering position and is arranged between the tail end surface of the outer shell and the limiting flange to limit the outer shell; the stop ring is formed by connecting a first component and a second component in a surrounding mode, and the first component and the second component are each provided with a connecting end and a locking end which are located at the two opposite tail ends. The connecting ends of the first component and the second component are correspondingly and rotatably connected, and the locking ends of the first component and the second component are respectively provided with a first buckling piece and a second buckling piece which can be movably buckled and locked with each other. According to the embodiment, the stop ring can be conveniently and rapidly disassembled and assembled.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of optical fiber connectors, and in particular to an MPO connector. Background Art

[0002] An existing MPO connector usually includes an inner shell having an inner cavity that passes through from front to back, an outer shell that is movably mounted on the outside of the inner shell, and an auxiliary spring that is arranged in a gap between the inner shell and the outer shell and is used to elastically push the outer shell toward the front end direction of the inner shell; in addition, in order to prevent the outer shell of the MPO connector from being accidentally touched and moving toward the rear end direction of the inner shell to achieve unlocking after the MPO connector and the adapter are plugged in, a stop ring is usually mounted on the rear end of the inner shell after the MPO connector is plugged in, and the opposite side end faces of the stop ring are respectively abutted against the limiting flange at the rear end edge of the inner shell and the rear end face of the outer shell, thereby limiting the movement stroke of the outer shell toward the rear end and preventing the buckle groove from being exposed.

[0003] The inventors found during the specific implementation that in order to put the stop ring on the rear end of the inner shell, the stop ring usually adopts a C-shaped ring structure with an expansion joint. However, due to the obstruction of the limiting flange and the rear end face of the outer shell, the stop ring of the above structure is very troublesome to disassemble and assemble, which is not conducive to the quick plugging and unplugging of the MPO connector. Utility Model Content

[0004] The technical problem to be solved by the embodiment of the utility model is to provide an MPO connector capable of quickly disassembling and assembling a stop ring.

[0005] In order to solve the above technical problems, the embodiment of the utility model provides the following technical solutions: an MPO connector, comprising:

[0006] An inner shell, wherein the side wall of the inner shell is provided with a buckle groove for engaging with a corresponding hook of the corresponding adapter, and a limiting flange is also formed at the rear end edge of the inner shell;

[0007] an outer shell movably mounted on the outside of the inner shell and slidable along the front-to-back direction of the inner shell, wherein the outer shell is in a covering position corresponding to covering the buckle slot when sliding toward the front end of the inner shell to the end of the forward stroke; and

[0008] A stop ring for being sleeved on the rear end of the inner shell and interposed between the rear end surface of the outer shell and the limiting flange to keep the outer shell in the covering position when the outer shell slides to the covering position;

[0009] The retaining ring is a closed ring body formed by the corresponding encircling connection of a first component and a second component. The first component and the second component both have a connecting end and a locking end located at two opposite ends. The connecting ends of the first component and the second component are correspondingly rotatably connected, and the locking ends of the two are respectively provided with a first latch part and a second latch part that can be movably latched and locked with each other.

[0010] Furthermore, the first member and the second member are both C-shaped or one is C-shaped and the other is linear.

[0011] Furthermore, the connecting ends of the first component and the second component are connected by a flexible belt, and the first component, the second component and the flexible belt are integrally formed or the flexible belt is independently manufactured and the opposite ends are respectively assembled and fixed to the connecting ends of the first component and the second component.

[0012] Furthermore, the connecting ends of the first component and the second component are hinged correspondingly by means of a pivot and a pivot hole.

[0013] Furthermore, a pivot protrusion protrudes from the end surface of the connecting end of the first component, and the opposite sides of the pivot protrusion are correspondingly integrally formed and protrude with coaxial pivots. The end surface of the connecting end of the second component protrudes from both sides with pivot arms respectively, and the two pivot arms are respectively provided with coaxial pivot holes, and the pivot protrusion is inserted into a pivot groove formed between the two pivot arms. The pivots on both sides of the pivot protrusion respectively push the two pivot arms to elastically deform the pivot arms and insert them into the pivot hole on the corresponding one of the pivot arms.

[0014] Furthermore, a pivot protrusion protrudes from the end surface of the connecting end of the first component, and an inner pivot hole is provided on the pivot protrusion. Pivot arms protrude from the end surface of the connecting end of the second component on both sides, and the two pivot arms are respectively provided with coaxial outer pivot holes. The pivot protrusion is inserted into a pivot groove formed between the two pivot arms, and the two outer pivot holes and the inner pivot hole are aligned with each other to form the pivot hole, and a pivot is correspondingly inserted into the pivot hole.

[0015] Furthermore, the first fastener of the first component is an elastic hook, and the second fastener of the second component is a hook groove.

[0016] Furthermore, a positioning protrusion is provided on the outer wall of one side of the inner shell near the tail end portion, which extends from the limiting flange to a predetermined length toward the front end direction of the inner shell and protrudes from the outer wall surface, and a guide groove is formed on the inner wall of the outer shell accordingly. After the outer shell and the inner shell are assembled accordingly, the positioning protrusion is accommodated in the guide groove, and the inner ring surface of the stop ring is formed with a corresponding avoidance groove for accommodating the positioning protrusion at a position corresponding to the positioning protrusion.

[0017] Furthermore, the MPO connector also includes an auxiliary spring disposed in a gap between the inner shell and the outer shell, and used to elastically push the outer shell toward the front end direction of the inner shell to keep the outer shell in the covering position.

[0018] Furthermore, the outer surface of the inner shell is also provided with a front stop protrusion to prevent the outer shell from slipping off from the front end, and the inner surface of the outer shell is correspondingly provided with an inner limit stop block which abuts against the front stop protrusion when the outer shell slides to the end of the forward stroke to stop the outer shell at the covering position. The front end face of the front stop protrusion and the rear end face of the inner limit stop block are respectively adapted to each other and guide the outer shell to deform elastically accordingly when the outer shell is assembled from the front end sliding sleeve of the inner shell to the inner shell, so that the inner limit stop block passes over the guiding inclined surface of the front stop protrusion.

[0019] After adopting the above technical scheme, the embodiment of the utility model has at least the following beneficial effects: the embodiment of the utility model sets the stop ring as a closed ring body formed by the first component and the second component, and the connecting ends of the first component and the second component are rotatably connected, and the locking ends are locked with each other by the first clip and the second clip. When the outer shell slides along the inner shell to the covering position, it is only necessary to make the inner wall of one of the first component or the second component correspondingly fit the outer wall of the tail end of the inner shell, and then relatively rotate the other of the first component and the second component so that the first clip and the second clip on the locking ends of the two are correspondingly locked, so that the assembly of the stop ring is completed; and when it is necessary to remove the stop ring, it is only necessary to release the hook fit of the first clip and the second clip, and then rotate the first component or the second component to remove the stop ring, so that the disassembly and assembly are very convenient, and the stop ring is a closed ring body, which has better stability after being assembled on the inner shell, and the limiting effect on the outer shell is more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the split structure of an optional embodiment of the MPO connector of the utility model.

[0021] Figure 2 This is a schematic diagram of the assembly structure of an optional embodiment of the MPO connector of the utility model.

[0022] Figure 3 The figure is a schematic cross-sectional structure diagram of a retaining ring of an optional embodiment of the MPO connector of the utility model.

[0023] Figure 4 This is a schematic diagram of the disassembly of a retaining ring of another optional embodiment of the MPO connector of the utility model.

[0024] Figure 5This is a schematic diagram of the disassembly of a retaining ring of another optional embodiment of the MPO connector of the utility model.

[0025] Figure 6 This is a schematic cross-sectional structure diagram of a retaining ring of another optional embodiment of the MPO connector of the utility model.

[0026] Figure 7 This is a schematic diagram of the cross-sectional structure of a mid-axis surface in the width direction of an optional embodiment of the MPO connector of the utility model. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following illustrative embodiments and descriptions are only used to explain the present invention and are not intended to limit the present invention. In addition, the embodiments and features in the embodiments of the present application may be combined with each other without conflict.

[0028] like Figure 1-Figure 7 As shown, an optional embodiment of the utility model provides an MPO connector, including:

[0029] An inner shell 1, wherein a buckle groove 10 for correspondingly hooking and engaging with a corresponding adapter is provided on the side wall of the inner shell 1, and a limiting flange 12 is formed protruding at the rear edge of the inner shell 1;

[0030] an outer shell 2 movably mounted on the outside of the inner shell 1 and slidable along the front-to-back direction of the inner shell 1, wherein the outer shell 2 is in a covering position corresponding to covering the buckle slot 10 when sliding toward the front end of the inner shell 1 to the end of the forward stroke; and

[0031] A stop ring 3, which is sleeved on the rear end of the inner shell 1 and is located between the rear end surface of the outer shell 2 and the limiting flange 12 to keep the outer shell 2 in the covering position when the outer shell 2 slides to the covering position;

[0032] The retaining ring 3 is a closed ring body formed by the corresponding encirclement and connection of the first component 30 and the second component 32. The first component 30 and the second component 32 both have a connecting end 30a and a locking end 30b located at two opposite ends. The connecting ends 30a of the first component 30 and the second component 32 are correspondingly rotatably connected, and the locking ends 30b of the two are respectively provided with a first fastener 301 and a second fastener 302 that can be movably snap-locked with each other.

[0033] The embodiment of the utility model sets the stop ring 3 as a closed ring body formed by the first component 30 and the second component 32, and the connecting ends 30a of the first component 30 and the second component 32 are rotatably connected, and the locking end 30b is locked with each other by the first buckle 301 and the second buckle 302. When the outer shell 2 slides along the inner shell 1 to the covering position, it is only necessary to fit the inner side wall of one of the first component 30 or the second component 32 to the outer side wall of the rear end of the inner shell 1, and then relatively rotate the first component 30 and the second component 32. The other of the two components 32 makes the first latch 301 and the second latch 302 on the locking ends 30b of the two latches correspondingly latch and lock, thus completing the assembly of the stop ring 3; and when it is necessary to remove the stop ring 3, it is only necessary to release the hook fit of the first latch 301 and the second latch 302, and then rotate the first component 30 or the second component 32 to remove the stop ring 3, and the disassembly and assembly are very convenient, and the stop ring 3 is a closed ring body, which has better stability after being assembled on the inner shell 1, and the limiting effect on the outer shell 2 is more reliable.

[0034] In an optional embodiment of the utility model, the first member 30 and the second member 32 are both C-shaped or one is C-shaped and the other is linear. In this embodiment, whether one is C-shaped and the other is linear; or both are C-shaped, the two can form a closed-loop stop ring 3 after being assembled.

[0035] In an optional embodiment of the present invention, Figure 1 and Figure 3 As shown, the connecting ends 30a of the first component 30 and the second component 32 are connected by a flexible belt 303. The first component 30, the second component 32 and the flexible belt 303 are integrally formed or the flexible belt 303 is independently manufactured and the opposite ends are respectively assembled and fixed to the connecting ends 30a of the first component 30 and the second component 32. In this embodiment, the connecting ends 30a of the first component 30 and the second component 32 are connected by the flexible belt 303. The flexibility and flexible bending characteristics of the flexible belt 303 can be used to achieve relative rotation connection between the first component 30 and the second component 32; moreover, the flexible belt 303 can be integrally formed or assembled separately, and can be flexibly designed according to actual needs. Figure 1 and Figure 3 In the embodiment shown, the first member 30, the second member 32 and the flexible belt 303 are integrally formed, and the flexible belt 303 can be obtained by using a plastic material with a certain toughness to form and controlling the thickness of the flexible belt 303. If the flexible belt 303 is separately assembled to the connecting end 30a of the first member 30 and the second member 32, it can be assembled by various common fixing connection methods such as bonding, screws or rivets.

[0036] In an optional embodiment of the present invention, Figure 4-Figure 6 As shown, the connecting ends 30a of the first member 30 and the second member 32 are hinged by the pivot 304 and the pivot hole 305. In this embodiment, the connecting ends 30a of the first member 30 and the second member 32 can also be hinged by the pivot 304 and the pivot hole 305 to achieve rotational connection. Different rotational connection methods can be selected according to different usage requirements.

[0037] In an optional embodiment of the present invention, Figure 4 As shown, a pivot protrusion 306 protrudes from the end face of the connecting end 30a of the first component 30, and the opposite sides of the pivot protrusion 306 are correspondingly integrally formed and protrudingly provided with the coaxial pivots 304. The end face of the connecting end 30a of the second component 32 protrudes from both sides with pivot arms 307 respectively. The two pivot arms 307 are respectively provided with coaxial pivot holes 305. The pivot protrusion 306 is inserted into a pivot groove 307a formed between the two pivot arms 307. The pivots 304 on both sides of the pivot protrusion 306 respectively push the two pivot arms 307 to elastically deform the pivot arms 307 and insert them into the pivot hole 305 on the corresponding one of the pivot arms 307. In this embodiment, the pivot protrusion 306 is plugged into the pivot groove 307a formed between the two pivot arms 307, and the two ends of the pivot 304 are slightly forced to squeeze and stretch the two pivot arms 307 (usually made of elastic plastic material) with a certain elasticity so as to be inserted into the pivot hole 305 of the pivot arm 307 to achieve assembly. In a specific implementation, the two opposite end surfaces of the pivot 304 can be designed as smooth spherical surfaces 304a to facilitate squeezing and stretching the pivot arms 307.

[0038] In an optional embodiment of the present invention, Figure 5-Figure 6 As shown, a pivot protrusion 306 protrudes from the end surface of the connection end 30a of the first member 30, and an inner pivot hole 305a is provided on the pivot protrusion 306. A pivot arm 307 protrudes from the end surface of the connection end 30a of the second member 32 on both sides, and two coaxial outer pivot holes 305b are provided on the two pivot arms 307, and the pivot protrusion 306 is inserted into a pivot groove 307a formed between the two pivot arms 307. The two outer pivot holes 305b and the inner pivot hole 305a are aligned with each other to form the pivot hole 305, and the pivot shaft 304 is correspondingly inserted into the pivot hole 305. In this embodiment, the inner pivot hole 305a is directly provided on the pivot protrusion 305, and during the specific assembly, the assembly can be completed by directly passing the pivot shaft 304 through each outer pivot hole 305b and the inner pivot hole 305a in sequence, which is more convenient and labor-saving.

[0039] In an optional embodiment of the present invention, Figure 1-Figure 6 As shown, the first fastener 301 of the first member 30 is an elastic hook, and the second fastener 302 of the second member 32 is a hook groove. In this embodiment, the elastic hook and the hook groove are hooked and matched with each other, so that the hook can be flexibly disassembled.

[0040] In an optional implementation of the present invention, Figure 1 , Figure 2 , Figure 7 As shown, a positioning protrusion 14 extending from the limiting flange 12 to the front end direction of the inner shell 1 by a predetermined length and protruding from the outer wall surface is provided at the rear end of the outer wall of one side of the inner shell 1, and a guide groove 20 is formed on the inner wall of the outer shell 2 correspondingly. After the outer shell 2 and the inner shell 1 are assembled correspondingly, the positioning protrusion 14 is accommodated in the guide groove 20, and the inner ring surface of the stop ring 3 is formed with a position corresponding to the positioning protrusion 14. The position corresponding to the positioning protrusion 14 is formed with a corresponding avoidance groove 308 for accommodating the positioning protrusion 14. In this embodiment, the movement of the outer shell 2 on the inner shell 1 is guided by the mutual assembly and cooperation of the positioning protrusion 14 and the avoidance groove 308 is provided on the stop ring 3 corresponding to the positioning protrusion 14 to accommodate the positioning protrusion 14. On the one hand, the stop ring 3 can be effectively positioned, and on the other hand, the outer ring body of the corresponding side of the stop ring 3 can be prevented from bulging outward, which is conducive to reducing the overall size of the MPO connector.

[0041] In an optional embodiment of the present invention, Figure 1 , Figure 2 , Figure 7 As shown, the MPO connector further includes an auxiliary spring 4 disposed in the gap between the inner shell 1 and the outer shell 2, and used to elastically push the outer shell 2 toward the front end direction of the inner shell 1 to keep the outer shell 2 in the covering position. In this embodiment, by providing the auxiliary spring 4, the outer shell 2 can be effectively elastically pressed to keep the outer shell 2 in the covering position.

[0042] In an optional embodiment of the present invention, Figure 1 , Figure 2 , Figure 7As shown, the outer surface of the inner shell 1 is also provided with a front stop protrusion 16 to prevent the outer shell 2 from slipping off from the front end, and the inner surface of the outer shell 2 is correspondingly provided with an inner limit stopper 22 which abuts against the front stop protrusion 16 when the outer shell 2 slides to the end of the forward stroke and stops the outer shell 2 at the covering position, and the front end surface of the front stop protrusion 16 and the rear end surface of the inner limit stopper 22 are respectively adapted to each other and guide the outer shell 2 to elastically deform accordingly when the outer shell 2 is assembled from the front end sliding sleeve of the inner shell 1 to the inner shell 1, so that the inner limit stopper 22 passes over the guide slope 161 of the front stop protrusion. In this embodiment, the front stop protrusion 16 and the inner limit stopper 22 are also provided to dock with each other, so as to effectively limit the forward limit position of the outer shell 2 sliding on the inner shell 1; and the guide slope 161 is provided to facilitate the assembly of the outer shell 2 to the inner shell 1.

[0043] In addition, to realize the basic functions of MPO connector, such as Figure 1 , Figure 2 , Figure 7 As shown, the MPO connector further includes a plug-in assembly 5 assembled in the inner shell 1 and extending from the front end of the inner shell 1, a stopper 6 whose front end is inserted into the inner shell 1 from the rear end of the inner shell 1, and a main spring 7 disposed between the plug-in assembly 5 and the stopper 6. In this embodiment, the main spring 7 elastically pushes the plug-in assembly 5 so that the plug-in assembly 5 is fully docked with the inside of the adapter socket. At the same time, when the plug-in assembly 5 is subjected to a rigid force during the plugging process, the main spring 7 can buffer the rigid force exerted on the plug-in assembly 5 to prevent the plug-in assembly 5 from being damaged.

[0044] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, which all belong to the protection scope of the utility model.

Claims

1. An MPO connector, comprising: An inner shell, wherein the side wall of the inner shell is provided with a buckle groove for engaging with a corresponding hook of the corresponding adapter, and a limiting flange is also formed at the rear end edge of the inner shell; An outer shell movably sleeved outside the inner shell and slidable along the front-to-back direction of the inner shell, wherein the outer shell is in a covering position corresponding to covering the buckle slot when sliding toward the front end of the inner shell to the end of the forward stroke; as well as A stop ring for being sleeved on the rear end of the inner shell and interposed between the rear end surface of the outer shell and the limiting flange to keep the outer shell in the covering position when the outer shell slides to the covering position; It is characterized in that the stop ring is a closed ring body formed by correspondingly enclosing and connecting a first component and a second component, the first component and the second component both have a connecting end and a locking end located at two opposite ends, the connecting ends of the first component and the second component are correspondingly rotatably connected and the locking ends of the two are respectively provided with a first buckle part and a second buckle part that can be movably buckled and locked with each other.

2. The MPO connector according to claim 1, wherein: The first member and the second member are both C-shaped or one is C-shaped and the other is linear.

3. The MPO connector according to claim 1 or 2, characterized in that: The connecting ends of the first component and the second component are connected by a flexible belt. The first component, the second component and the flexible belt are integrally formed or the flexible belt is independently manufactured and the opposite ends are respectively assembled and fixed to the connecting ends of the first component and the second component.

4. The MPO connector according to claim 1 or 2, characterized in that: The connecting ends of the first component and the second component are hingedly connected by means of a pivot and a pivot hole.

5. The MPO connector according to claim 4, characterized in that: A pivot protrusion protrudes from the end surface of the connecting end of the first component, and the opposite sides of the pivot protrusion are correspondingly integrally formed and protrude with the coaxial pivots. The end surface of the connecting end of the second component protrudes from both sides with pivot arms respectively, and the two pivot arms are respectively provided with coaxial pivot holes, and the pivot protrusion is inserted into the pivot groove formed between the two pivot arms. The pivots on both sides of the pivot protrusion push the two pivot arms respectively so that the pivot arms are elastically deformed and inserted into the pivot hole on the corresponding one of the pivot arms.

6. The MPO connector according to claim 4, wherein: A pivot protrusion protrudes from the end surface of the connecting end of the first component, and an inner pivot hole is formed on the pivot protrusion. Pivot arms protrude from the end surface of the connecting end of the second component on both sides, and the two pivot arms are respectively provided with coaxial outer pivot holes. The pivot protrusion is inserted into a pivot groove formed between the two pivot arms. The two outer pivot holes and the inner pivot hole are aligned with each other to form the pivot hole, and a pivot is correspondingly inserted into the pivot hole.

7. The MPO connector according to claim 1, wherein: The first fastener of the first component is an elastic hook, and the second fastener of the second component is a hook groove.

8. The MPO connector according to claim 1, wherein: A positioning protrusion is provided on the outer wall of one side of the inner shell near the tail end portion, which extends from the limiting flange to a predetermined length toward the front end direction of the inner shell and protrudes from the outer wall surface. A guide groove is formed on the inner wall of the outer shell correspondingly. After the outer shell and the inner shell are assembled accordingly, the positioning protrusion is accommodated in the guide groove, and a corresponding avoidance groove for accommodating the positioning protrusion is formed on the inner ring surface of the stop ring at a position corresponding to the positioning protrusion.

9. The MPO connector according to claim 1, wherein: The MPO connector further includes an auxiliary spring disposed in a gap between the inner shell and the outer shell and used for elastically pushing the outer shell toward the front end direction of the inner shell to keep the outer shell in the covering position.

10. The MPO connector according to claim 1 or 9, characterized in that: The outer surface of the inner shell is also provided with a front stop protrusion that prevents the outer shell from slipping off the front end, and the inner surface of the outer shell is correspondingly provided with an inner limit stop block that abuts against the front stop protrusion when the outer shell slides to the end of the forward stroke to stop the outer shell at the covering position. The front end face of the front stop protrusion and the rear end face of the inner limit stop block are respectively adapted to each other and guide the outer shell to deform elastically when the outer shell is assembled from the front end sliding sleeve of the inner shell to the inner shell, so that the inner limit stop block passes over the guiding inclined surface of the front stop protrusion.

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