Adapter

Abstract

The application discloses an adapter, comprising: a housing member having at least one plugging cavity for receiving an optical fiber connector and forming a plugging port; the coaxial part is fixedly arranged in the shell part and used for being in butt joint with an optical fiber connector along an optical axis; the door plate piece is located in the inserting cavity and close to the inserting opening, the upper end edge and the lower end edge of one side of the door plate piece protrude to form rotating shaft parts respectively, and the rotating shaft parts are pivoted to the upper inner wall face and the lower inner wall face of the inserting cavity respectively; a coupling part, a first spring part and a second spring part are formed on the spring part, the coupling part is combined on the door plate part on the side where the rotating shaft part is located, the first spring part elastically abuts against the inner side face of the insertion cavity, and the second spring part elastically abuts against the inner surface of the door plate part; the coupling part is located between the two rotating shaft parts in the axial direction of the rotating shaft of the door plate piece and is separated from the two rotating shaft parts.

Description

Technical Field

[0001] The present application relates to the field of connectors, and in particular to an adapter. Background Art

[0002] An adapter for receiving a fiber optic connector at one or both ends is widely used. A typical fiber optic connector (adapter) includes a sleeve that mounts and centers the fiber or fibers placed inside the connector. The sleeve can be made of a material such as ceramic. A sleeve clamp or other housing component of the connector surrounds the sleeve, which can be made of a material such as molded plastic. A spring can be placed inside the housing or sleeve clamp so that the sleeve is easily biased forward to engage with the sleeve of another fiber mounted on the mating connection device.

[0003] Adapters are generally used to connect two fiber optic connectors, specifically, one fiber optic connector is connected at each end of the adapter. A typical situation may occur when one of the fiber optic connectors at one end of the adapter is removed, leaving the other fiber optic connector in the adapter, which may expose the fiber in the fiber optic connector left in the adapter to the outside, which may encounter various problems. In particular, the exposed fiber end may be damaged by adverse and hazardous environments, and the accumulation of dust and dirt may damage the optical transmission capacity of the fiber. Another very important issue is to protect the operator's eyes from the dangerous light beam emitted from the end of the fiber optic connector.

[0004] Therefore, it is necessary to design a new adapter to solve the above problems. Summary of the invention

[0005] The purpose of this application is to provide an adapter that can have better protection function.

[0006] To achieve the above objectives, this application provides the following technical solutions: An adapter, comprising: A housing member having at least one insertion cavity for receiving the optical fiber connector and forming an insertion interface; A coaxial member, fixedly disposed in the housing member, and used for docking with the optical fiber connector along the optical axis; and A door panel is located in the plug-in cavity and close to the plug-in port, and upper and lower ends of one side of the door panel protrude to form a rotating shaft, and the rotating shaft is pivotally connected to the upper and lower inner wall surfaces of the plug-in cavity; A spring member, formed with an axis-connecting portion, a first spring portion and a second spring portion, wherein the axis-connecting portion is combined with the door panel member on the side where the rotating shaft portion is located, the first spring portion elastically abuts against the inner side surface of the insertion cavity, and the second spring portion elastically abuts against the inner surface of the door panel member; The shaft connection portion is located between the two rotation shaft portions along the axial direction of the rotation shaft of the door panel and is spaced apart from the two rotation shaft portions.

[0007] Furthermore, it also includes a fixing member, which is fixed in the outer shell and exposed from the plug-in port. The fixing member is formed with a locking portion protruding into the plug-in cavity. The locking portion is used to lock with the optical fiber connector. The coaxial member is fixed in the fixing member.

[0008] Furthermore, a penetration hole is formed through the door panel on the side where the rotating shaft portion is located to form a columnar shaft portion; The second spring portion passes through the penetration hole, and the shaft connection portion is arc-shaped in a cross section perpendicular to the axial direction of the rotation axis of the door panel and surrounds at least a portion of the outer surface of the columnar shaft portion.

[0009] Furthermore, a cutting portion is formed at a position of the columnar shaft portion close to the first spring portion, so that a clearance space is formed between the position where the first spring portion and the shaft connection portion are connected and the columnar shaft portion.

[0010] Furthermore, the cutting portion forms a first plane portion, a second plane portion and a third plane portion which are connected to each other, the first plane portion is located between the second plane portion and the third plane portion, and the area of ​​the first plane portion is larger than the area of ​​the second plane portion and larger than the area of ​​the third plane portion.

[0011] Furthermore, the first spring portion is in the shape of a flat plate, and the second spring portion is in the shape of a flat plate. When the door panel is in a closed state, an angle formed between the first spring portion and the second spring portion is no greater than 90 degrees.

[0012] Further, the width of the second spring portion along the axial direction of the rotation axis of the door panel gradually narrows from one end where the second spring portion is connected to the axle connection portion to the free end, and / or the width of the first spring portion along the axial direction of the rotation axis of the door panel gradually narrows from one end where the first spring portion is connected to the axle connection portion to the free end.

[0013] Furthermore, the door panel members are provided with two, which are pivotally connected to the two sides of the plug-in cavity and close to the plug-in interface. When the two door panel members are in a closed state, the two door panel members contact each other and are inclined toward the plug-in cavity along the optical axis direction with the rotating shaft as a fulcrum, forming an angle between the two door panel members, and the angle is not less than 90 degrees and less than 180 degrees.

[0014] Furthermore, the door panel is provided with a rotation stop protrusion extending from the edge position on the side where the shaft portion is located. When the door panel is in a closed state, the rotation stop protrusion can touch and stop on the inner side surface of the plug-in cavity to prevent the door panel from excessively rotating outward along the optical axis toward the plug-in interface.

[0015] Furthermore, along the axial direction of the columnar shaft portion, one of the rotation stop protrusions is provided between the columnar shaft portion and any one of the rotating shaft portions.

[0016] Furthermore, the spring member is formed by bending a metal plate, or the spring member is a torsion spring structure formed by bending a spring steel wire.

[0017] Furthermore, the free end of the second spring portion corresponds to a simply supported portion touching the inner surface of the door panel and forming an acute angle with the inner surface of the door panel, and the distance between the second spring portion and the inner surface of the door panel gradually expands from one end of the second spring portion touching the inner surface of the door panel toward one end of the second spring portion connected to the shaft connection portion.

[0018] Compared with the prior art, the beneficial effect of the present application is that it can have a better protective function. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the adapter of the present application and a docking optical fiber connector.

[0020] Figure 2 It is a side view of the adapter of the present application.

[0021] Figure 3 It is Figure 2 The AA lines in the middle are all pictures.

[0022] Figure 4 It is a three-dimensional exploded view of the adapter of the present application.

[0023] Figure 5 It is a further exploded perspective view of the adapter of the present application.

[0024] Figure 6 yes Figure 3 A magnified view of the structure within the dashed box.

[0025] Figure 7 It is a three-dimensional schematic diagram of the door panel component and the spring component of the adapter of the present application.

[0026] Figure 8 It is a three-dimensional exploded view of the second embodiment of the adapter of the present application.

[0027] Fig. 9 It is a three-dimensional exploded view of the third embodiment of the adapter of the present application. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] Please refer to Figures 1 to 7 As shown, an adapter 100 disclosed in the present application is used to receive an optical fiber connector 200 and connect two optical fiber connectors 200. The adapter 100 includes a housing member 1 generally made of an insulating material by injection molding, a fixing member 2 fixed in the housing member 1, a coaxial member 3 fixed in the fixing member 2, a door panel member 4 and a spring member 5.

[0030] The outer shell 1 is generally in the form of a rectangular barrel, and is formed into a through structure along the optical axis and has a docking hole (not numbered). An assembly portion 101 is formed on the inner wall surface of the outer shell 1 at the middle position in the optical axis direction and extends radially, and a docking tube portion 1011 is formed at the middle position of the assembly portion 101 and extends toward one end along the optical axis direction.

[0031] The fixing member 2 includes a middle partition 201 and locking portions 21 extending from both sides of the middle partition 201 along the optical axis to both ends, and the locking portions 21 are used to be connected and locked with the optical fiber connector. An assembly hole 202 is formed through the middle position of the middle partition 201 along the optical axis, and a matching tube portion 203 is formed around the assembly hole 202 and extends to the other end of the middle partition 201 along the optical axis. The matching tube portion 203 is through-shaped along the optical axis.

[0032] Please refer to Figure 3 As shown, the fixing member 2 is assembled into the outer shell member 1. Specifically, the middle partition portion 201 is assembled and fixed with the assembly portion 101. The root of the locking portion 21 also protrudes to form a buckle block 2011. The buckle block 2011 corresponds to the matching clamping portion 102 formed on the inner side surface of the outer shell member 1 to realize buckling, so as to limit the movement of the fixing member 2 relative to the outer shell member 1 along the optical axis direction. The butt-jointing tube portion 1011 corresponds to the matching tube portion 203 for matching and communication. The coaxial member 3 is inserted and fixed into the butt-jointing tube portion 1011 and the matching tube portion 203. The coaxial member 3 is a tubular structure with openings at both ends, which is used to dock with the matching optical fiber connector along the optical axis. After the fixing member 2 is assembled into the outer shell member 1, the docking hole of the outer shell member 1 is defined to form a plug-in cavity 11 that is open at both ends along the optical axis and to form a plug-in interface 110 and to form In the present application, two door panels 4 are provided in the plug-in port 110, which are respectively rotated and assembled in the plug-in cavity 11 and close to the plug-in port 110. Specifically, the upper and lower ends of one side of the door panel 4 are respectively protruded to form a shaft portion 41, and the shaft portion 41 is respectively pivotally connected to the upper and lower inner wall surfaces of the first plug-in cavity 11 and is respectively located at the two sides of the corresponding plug-in port 110. It is preferred to set two door panels 4 in one plug-in port 110, which can make the insertion of the optical fiber connector smoother, improve the plug-in and pull-out feel, and avoid the situation where a single door panel 4 pushes the optical front connector unevenly and deflects.

[0033] Of course, in some special cases, only one door panel member 4 may be provided in one plug-in port 110. In the case where only one door panel member 4 is provided, when the door panel member 4 is in a closed state, the angle formed between the door panel member 4 and the inner side surface of the corresponding housing member 1 with the rotating shaft portion 41 as a fulcrum is not greater than 90 degrees. At this time, the angle formed between the first spring portion 52 and the second spring portion 53 is also not greater than 90 degrees.

[0034] The spring component 5 is formed with an axial connection portion 51, a first spring portion 52 and a second spring portion 53. The axial connection portion 51 is combined on the door panel component 4 on the side where the rotating shaft portion 41 is located. The first spring portion 52 elastically abuts against the inner side surface of the first plug-in cavity 11, and the second spring portion 53 elastically abuts against the inner surface of the door panel component 4.

[0035] In the embodiment of the present application, a penetration hole 410 is formed through the door panel 4 on the side where the rotating shaft portion 41 is located, and a columnar shaft portion 42 is formed. The columnar shaft portion 42 is located between the two rotating shaft portions 41 along the axial direction of the rotating shaft of the door panel 4, so that the spring member 5 is not affected by the rotation of the rotating shaft portion 41. The second spring portion 53 passes through the penetration hole 410, and the shaft connection portion 51 is arc-shaped along the cross section perpendicular to the axial direction of the rotating shaft of the door panel 4 and surrounds at least part of the outer surface of the columnar shaft portion 42. The shaft connection portion 51 is located between the two rotating shaft portions 41 along the axial direction of the rotating shaft of the door panel 4 and is spaced from the two rotating shaft portions 41. Of course, in other embodiments, the shaft connection portion 51 can be fixed by being embedded and formed integrally with the columnar shaft portion 42. In other embodiments, the penetration hole 410 may not be provided, and the rotating shaft portion 41 is directly fixed in the door panel 4 on the side where the rotating shaft portion 41 is located by being embedded and formed integrally.

[0036] In this embodiment, the spring member 5 is formed by bending a metal plate, the first spring portion 52 is in a flat plate shape (including a slightly curved arc shape here), and the second spring portion 53 is in a flat plate shape (including a slightly curved arc shape here). The spring member 5 is mainly used to apply elastic force to the door panel member 4 so that the door panel member 4 is normally kept in a closed state. When the door panel member 4 is in a normally closed state, the free ends of the two door panel members 4 located at the same plug-in port 110 touch each other at a stop position, and both are inclined toward the plug-in cavity 11 along the optical axis direction with the rotating shaft portion 41 as a fulcrum, and an angle is formed between the two door panel members 4, and the angle is not less than 90 degrees and less than 180 degrees. Such a design can facilitate the insertion of the optical fiber connector. When the door panel member 4 is in a normally closed state, the angle formed between the first spring portion 52 and the second spring portion 53 of a single door panel member 4 is not greater than 90 degrees, preferably not less than 30 degrees and not greater than 60 degrees.

[0037] Please refer to Figure 6 As shown, specifically, in the present embodiment, the first spring portion 52 is substantially flush with the inner wall surface of the corresponding outer shell member 1, and the free end of the second spring portion 53 corresponds to a simply supported contact with the inner surface of the door panel member 4 and forms an acute angle with the inner surface of the door panel member 4, so that the distance between the second spring portion 53 and the inner surface of the door panel member 4 gradually expands from the end where the second spring portion 53 touches the inner surface of the door panel member 4 toward the end where the second spring portion 53 is connected to the shaft connection portion 51. Such a design enables the deformation stress on the spring member 5 to be dispersed to the second spring portion 53 when the door panel member 4 is opened, so as to further improve the plastic deformation of the spring member 5.

[0038] Please refer to Figure 7 Combined with Figure 3 to Figure 4 As shown, the columnar shaft portion 42 is formed with a cutting portion 421 at a position close to the first spring portion 52, so that a clearance space 50 is formed between the position where the first spring portion 52 and the shaft connection portion 51 are connected and the columnar shaft portion 42. The clearance space 50 is used to improve the plastic deformation of the spring member 5, especially the position of the shaft connection portion 51, and the connection position between the first spring portion 52 and the second spring portion 53 and the shaft connection portion 51.

[0039] In a more preferred embodiment, the cutting portion 421 forms a first plane portion 4211, a second plane portion 4212 and a third plane portion 4213 which are connected to each other. The first plane portion 4211 is located between the second plane portion 4212 and the third plane portion 4213. The area of ​​the first plane portion 4211 is larger than the area of ​​the second plane portion 4212 and the area of ​​the third plane portion 4213. An obtuse angle structure is formed between the first plane portion 4211 and the second plane portion 4212, an obtuse angle structure is formed between the first plane portion 4211 and the third plane portion 4213, an obtuse angle structure is formed between the second plane portion 4212 and the arc-shaped outer surface of the columnar shaft portion 42, and an obtuse angle structure is formed between the third plane portion 4213 and the arc-shaped outer surface of the columnar shaft portion 42. The width of the second spring portion 53 along the axial direction of the rotating axis of the door panel member 4 gradually narrows from the end where the second spring portion 53 is connected to the shaft connection portion 51 to the free end. It is used to further improve the plastic deformation of the spring member 5.

[0040] Please refer to Figure 3 , Figure 6 and Figure 7 As shown, each of the door panels 4 is formed with a rotation stop convex portion 43 extending from the edge position of the side where the rotating shaft portion 41 is located. When the door panel 4 is in a closed state, the rotation stop convex portion 43 can touch and stop on the inner side surface of the first plug cavity 11 to prevent the door panel 4 from excessively rotating outward along the optical axis toward the first plug interface 110. Further, along the axial direction of the columnar shaft portion 42, one of the rotation stop convex portions 43 is provided between the columnar shaft portion 42 and any one of the rotating shaft portions 41.

[0041] Please refer to Figure 8 As shown, the second embodiment of the adapter of the present application is disclosed. The second embodiment is different from the first embodiment ( Figures 1 to 7 ) The only difference is the structure of the spring member 5. In the second embodiment, the spring member 5 is a torsion spring structure formed by bending a spring steel wire. In the second embodiment, the width of the spring member 5 along the axial direction of the rotation axis of the door panel member 4 is equal or substantially equal.

[0042] Please refer to Fig. 9 As shown, the third embodiment of the adapter of the present application is disclosed. The third embodiment is different from the first embodiment ( Figures 1 to 7 ) The only difference is the structure of the first spring portion 52 in the spring member 5, the width of the first spring portion 52 along the axial direction of the rotation axis of the door panel member 4 gradually narrows from the end where the first spring portion 52 is connected to the shaft connection portion 51 to the free end, which is used to further improve the plastic deformation of the spring member 5.

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

Claims

1. An adapter, characterized in that: include: A housing member having at least one insertion cavity for receiving the optical fiber connector and forming an insertion interface; A coaxial member, fixedly disposed in the housing member, and used for docking with the optical fiber connector along the optical axis; as well as A door panel is located in the plug-in cavity and close to the plug-in port, and upper and lower ends of one side of the door panel protrude to form a rotating shaft, and the rotating shaft is pivotally connected to the upper and lower inner wall surfaces of the plug-in cavity; A spring member, formed with an axis-connecting portion, a first spring portion and a second spring portion, wherein the axis-connecting portion is combined with the door panel member on the side where the rotating shaft portion is located, the first spring portion elastically abuts against the inner side surface of the insertion cavity, and the second spring portion elastically abuts against the inner surface of the door panel member; The shaft connection portion is located between the two rotation shaft portions along the axial direction of the rotation shaft of the door panel and is spaced apart from the two rotation shaft portions.

2. The adapter according to claim 1, characterized in that Also includes: A fixing member is fixed in the outer shell and exposed from the plug-in port. The fixing member is formed with a locking portion protruding into the plug-in cavity. The locking portion is used to lock with the optical fiber connector. The coaxial member is fixed in the fixing member.

3. The adapter according to claim 1, characterized in that: A penetration hole is formed through the door panel on the side where the rotating shaft portion is located to form a columnar shaft portion; The second spring portion passes through the penetration hole, and the shaft connection portion is arc-shaped in a cross section perpendicular to the axial direction of the rotation axis of the door panel and surrounds at least a portion of the outer surface of the columnar shaft portion.

4. The adapter according to claim 3, characterized in that: A cutting portion is formed at a position of the columnar shaft portion close to the first spring portion, so that a clearance space is formed between the position where the first spring portion and the shaft connection portion are connected and the columnar shaft portion.

5. The adapter according to claim 4, characterized in that: The cutting portion forms a first plane portion, a second plane portion and a third plane portion which are connected to each other. The first plane portion is located between the second plane portion and the third plane portion. The area of ​​the first plane portion is larger than that of the second plane portion and larger than that of the third plane portion.

6. The adapter according to claim 1, characterized in that: The first spring portion is in the shape of a flat plate, and the second spring portion is in the shape of a flat plate. When the door panel is in a closed state, an angle formed between the first spring portion and the second spring portion is no greater than 90 degrees.

7. The adapter according to claim 1, characterized in that: The width of the second spring portion along the axial direction of the rotation axis of the door panel gradually narrows from one end where the second spring portion is connected to the axle connection portion to the free end, and / or the width of the first spring portion along the axial direction of the rotation axis of the door panel gradually narrows from one end where the first spring portion is connected to the axle connection portion to the free end.

8. The adapter according to claim 1, wherein: There are two door panels, which are pivotally connected to the two sides of the plug-in cavity and close to the plug-in interface. When the two door panels are in a closed state, the two door panels are in contact with each other and are tilted toward the plug-in cavity along the optical axis with the rotating shaft as a fulcrum, forming an angle between the two door panels, which is not less than 90 degrees and less than 180 degrees.

9. The adapter according to claim 3, characterized in that: The door panel is provided with a rotation stop protrusion extending from the edge position on the side where the shaft portion is located. When the door panel is in a closed state, the rotation stop protrusion can touch and stop on the inner side surface of the plug-in cavity to prevent the door panel from excessively rotating outward along the optical axis toward the plug-in interface.

10. The adapter according to claim 9, characterized in that: Along the axial direction of the columnar shaft portion, one rotation stop convex portion is respectively provided between the columnar shaft portion and any one of the rotating shaft portions.

11. The adapter according to claim 1, wherein: The spring member is formed by bending a metal plate, or the spring member is a torsion spring structure formed by bending a spring steel wire.

12. The adapter of claim 1, wherein: The free end of the second spring portion corresponds to a simply supported contact with the inner surface of the door panel and forms an acute angle with the inner surface of the door panel; the distance between the second spring portion and the inner surface of the door panel gradually expands from one end of the second spring portion touching the inner surface of the door panel toward one end of the second spring portion connected to the shaft connection portion.

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