Dustproof optical fiber adapter

Abstract

The utility model relates to the technical field of optical fiber connector, specifically relates to a dustproof optical fiber adapter, including main part, shell, shield door and elastic piece, two shield doors symmetry set up in the main part port, the main part one end is inserted in the shell, its characterized in that: shield door direction optical fiber connector insertion direction's side surface two ends each form a first guide block, the end face of first guide block direction optical fiber connector insertion direction forms a first guide surface, the first guide surface outside forms a second guide block, the second guide block inboard forms a second guide surface with the first guide surface link, the second guide surface from the link of second guide surface outwardly inclined. This dustproof optical fiber adapter strengthens the guiding effect of optical fiber connector when inserting, guarantees the guide needle of male head and the guide needle hole of female head accurate alignment, reduces the probability of guide needle to hurt the plug core.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic connector technology, and in particular to a dustproof fiber optic adapter. Background Technology

[0002] Fiber optic adapters are used to connect male and female connectors of fiber optic connectors. To prevent dust and laser damage, a shielding door is installed inside one end of the adapter housing. For example, in the structure disclosed in Utility Patent: A Fiber Optic Adapter (Publication No.: CN208833957U), a shielding door is elastically hinged to the lower port of the first adapter body. The hinge of the shielding door is held in the hinged position by the extension post formed by the extension of the lower end of the second adapter. When the fiber optic connector is not inserted, the shielding door shields the adapter port under the action of the elastic element, which serves to prevent dust and laser damage. When the fiber optic connector is inserted, it is deflected by the thrust to allow the fiber optic connector to be inserted. In the above-mentioned fiber optic adapter structure, when the fiber optic connector is inserted, the shielding door lacks a guiding effect in the width direction of the fiber optic connector plug, which makes it impossible for the male connector's guide pin to be accurately aligned with the female connector's guide pin hole, resulting in the guide pin puncturing the ferrule. Utility Model Content

[0003] In view of this, the purpose of this utility model is to propose a dustproof fiber optic adapter to solve the above problems.

[0004] For the purposes described above, this utility model provides: A dustproof fiber optic adapter includes a main body, an outer shell, shielding doors, and an elastic element. Two shielding doors are symmetrically arranged inside the main body port. One end of the main body is inserted into the outer shell. Each shielding door has a first guide block formed at both ends of its side facing the insertion direction of the fiber optic connector. A first guide surface is formed on the end face of the first guide block facing the insertion direction of the fiber optic connector. A second guide block is formed on the outer side of the first guide surface. A second guide surface is formed on the inner side of the second guide block, which connects with the first guide surface. The second guide surface is inclined outward from the connection point with the first guide surface.

[0005] Preferably, two mounting windows are symmetrically opened on the part of the main body that is inserted into the outer shell. A hinge groove is provided on the end face of the mounting window. The shielding door passes through the mounting window so that the hinge shaft of the shielding door is engaged in the hinge groove. The elastic element is provided on the main body and acts on the side of the shielding door opposite to the insertion direction of the fiber optic connector.

[0006] Preferably, the elastic element includes a mounting frame and an elastic arm. The mounting frame has several mounting slots, and the mounting window end face has several mounting protrusions that match the mounting slots. The mounting frame is placed on the mounting window end face so that the mounting protrusions pass through the mounting slots. The free end of the elastic arm passes through the mounting window and abuts against the side of the shielding door away from the direction of fiber optic connector insertion.

[0007] Preferably, a limiting groove is provided on the side of the shielding door opposite to the insertion direction of the fiber optic connector, and the free end of the elastic arm is located in the limiting groove.

[0008] Preferably, the end of the mounting frame is bent downward to form a plug-in portion, and a plug-in groove is provided on the end face of the mounting window, into which the plug-in portion is inserted.

[0009] Preferably, the inner wall of the outer shell is provided with a plurality of mounting grooves that extend through one end of the outer shell and match the mounting protrusions. The mounting protrusions are located in the mounting grooves, so that the mounting frame is held between the end face of the mounting window and the inner wall of the outer shell.

[0010] Preferably, a limiting protrusion is formed on the side of the shielding door opposite to the insertion direction of the fiber optic connector. When the limiting protrusion swings with the shielding door to abut against the inner wall of the outer shell, the first guide surface is parallel to the insertion direction of the fiber optic connector.

[0011] Preferably, the joint between the main body and the outer shell is welded.

[0012] The beneficial effects of this utility model are as follows: the first guide surface and the second guide surface play a guiding role in the insertion direction and width direction, respectively, when the fiber optic connector is inserted, thereby strengthening the guiding effect on the fiber optic connector during insertion, ensuring that the guide pin of the male connector is accurately aligned with the guide pin hole of the female connector when the fiber optic connector is plugged in, reducing the probability of the guide pin puncturing the ferrule, thereby ensuring accurate plugging of the fiber optic connector and facilitating its use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a cross-sectional schematic diagram of the present invention; Figure 4for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the main structure of the present invention; Figure 6 This is a schematic diagram of the outer shell structure of this utility model. Figure 7 This is a schematic diagram of the structure of the shielding door in this utility model; Figure 8 This is a structural schematic diagram of the shielding door from another perspective in this utility model; Figure 9 This is an educational schematic diagram of the elastic element in this utility model.

[0015] The diagram is marked as follows: 1. Main body; 11. Mounting window; 12. Hinge groove; 13. Mounting protrusion; 14. Insertion groove; 2. Outer shell; 21. Mounting slide; 3. Shielding door; 31. First guide block; 32. First guide surface; 33. Second guide block; 34. Second guide surface; 35. Limiting slide; 36. Limiting protrusion; 4. Elastic element; 41. Mounting frame; 42. Elastic arm; 43. Mounting groove; 44. Insertion part. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0017] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0018] like Figure 1 , Figure 2As shown, a dustproof fiber optic adapter includes a main body 1, a housing 2, shielding doors 3, and elastic elements 4. Two shielding doors 3 are symmetrically arranged inside the port of the main body 1. One end of the main body 1 is inserted into the housing 2. Each of the two ends of the shielding door 3 facing the fiber optic connector insertion direction has a first guide block 31. A first guide surface 32 is formed on the end face of the first guide block 31 facing the fiber optic connector insertion direction. A second guide block 33 is formed on the outer side of the first guide surface 32. A second guide surface 34 is formed on the inner side of the second guide block 33, which connects with the first guide surface 32. The second guide surface 34 is inclined outward from the connection point with the first guide surface 32. When the fiber optic connector is not inserted, the free ends of the two shielding doors 3 abut against each other under the action of their respective elastic elements 4, so that the sides of the two shielding doors 3 facing the fiber optic connector insertion direction are set at an angle, and the first guide surface 32 is inclined to the fiber optic connector insertion direction.

[0019] In the above structure, two second guide surfaces 34 symmetrically formed on the same shielding door 3, inclined outward from their connection with the first guide surface 32, constitute an insertion interface that gradually increases in width direction of the fiber optic connector in the direction of fiber optic connector insertion. When the fiber optic connector is inserted, the end of the fiber optic connector is inserted into the insertion interface formed by the second guide surfaces 34. The second guide surfaces 34 guide the insertion action of the fiber optic connector in the width direction, allowing the fiber optic connector to naturally transition along the second guide surfaces 34 to the position abutting against the first guide surface 32 during the insertion process. The first guide surface 32 guides the insertion action of the fiber optic connector in the width direction. The insertion action of the fiber optic connector serves as a guide in the insertion direction, causing the fiber optic connector to swing along the first guide surface 32 against the shielding door 3, thereby achieving the insertion of the fiber optic connector. Through the above structure and method, the first guide surface 32 and the second guide surface 34 serve as guides in the insertion direction and width direction, respectively, when the fiber optic connector is inserted. This strengthens the guiding effect on the fiber optic connector during insertion, ensuring that the male connector's guide pin is accurately aligned with the female connector's guide pin hole during insertion, reducing the probability of the guide pin puncturing the ferrule, thus ensuring accurate insertion of the fiber optic connector and facilitating its use.

[0020] Based on the above structure, the structure of the shielding door 3 on the main body 1 is as follows: two installation windows 11 are symmetrically opened on the part of the main body 1 that is inserted into the outer shell 2. A hinge groove 12 is opened on the end face of the installation window 11. The shielding door 3 passes through the installation window 11 so that the hinge shaft of the shielding door 3 is engaged in the hinge groove 12. The elastic element 4 is set on the main body 1 and acts on the side of the shielding door 3 that is away from the insertion direction of the optical fiber connector. The structure of the elastic element 4 on the main body 1 is as follows: the elastic element 4 includes a mounting frame 41 and an elastic arm 42. The mounting frame 41 has a plurality of mounting slots 43. The end face of the mounting window 11 has a plurality of mounting protrusions 13 that match the mounting slots 43. The mounting frame 41 is placed on the end face of the mounting window 11 so that the mounting protrusions 13 pass through the mounting slots 43. The free end of the elastic arm 42 passes through the mounting window 11 and abuts against the side of the shielding door 3 away from the direction of insertion of the optical fiber connector.

[0021] In the above structure, when assembling this dustproof adapter, firstly, the shielding door 3 is passed through the mounting window 11 so that the hinge shaft of the shielding door 3 is engaged in the hinge groove 12. Next, the mounting frame 41 of the elastic element 4 is placed on the end face of the mounting window 11 so that the mounting protrusion 13 is engaged in the mounting groove 43. The elastic arm 42 of the elastic element 4 passes through the mounting window and abuts against the shielding door 3. The mounting frame 41 covers the opening of the hinge groove 12 for the hinge shaft of the shielding door 3 to be inserted, so that the hinge shaft of the shielding door 3 is kept in the hinge groove 12. Finally, the main body 1 is... The end is inserted into the outer shell 2, so that the mounting frame 41 of the elastic element 4 is held between the end face of the mounting window 11 and the inner wall of the outer shell 2. This completes the assembly of the dustproof adapter. The overall assembly operation is relatively convenient. The elastic element 4 is mounted on the end face of the mounting window 11 through the multi-point mating mounting groove 43 and mounting protrusion 13, ensuring the stability of the elastic element 4 and providing a restoring force for the reset of the shielding door 3. After the elastic element 4 is installed, the shielding door 3 can be limited to the main body 1, which facilitates the subsequent insertion operation between the main body 1 and the outer shell 2.

[0022] Additionally, a limiting groove 35 is provided on the side of the shielding door 3 facing away from the insertion direction of the fiber optic connector. The free end of the elastic arm 42 abuts against the shielding door 3 and is located in the limiting groove 35. When the elastic arm 42 is deformed and swung by the swinging shielding door 3, its end remains in the limiting groove 35 and slides, ensuring that the elastic arm 42 will not deviate when it deforms and swung, thereby ensuring that a stable restoring force is provided to the shielding door 3 and avoiding jamming between the elastic arm 42 and the shielding door 3.

[0023] Additionally, the end of the mounting frame 41 is bent downward to form a plug-in part 44, and a plug-in groove 14 is provided on the end face of the mounting window 11. The plug-in part 44 is inserted into the plug-in groove 14. At the same time as the mounting protrusion 13 is inserted into the mounting groove 43, the plug-in part 44 is inserted into the plug-in groove 14 and has an interference fit with the inner wall of the plug-in groove 14, which enhances the stability of the elastic element 4 installed on the main body 1.

[0024] Additionally, the inner wall of the outer shell 2 is provided with several mounting grooves 21 that extend through one end of the outer shell 2 and match the mounting protrusions 13. The mounting protrusions 13 are located within the mounting grooves 21, so that the mounting frame 41 is held between the end face of the mounting window 11 and the inner wall of the outer shell 2. When the main body 1 is inserted into the outer shell 2, the mounting protrusions 13 slide into the mounting grooves 21 along with the main body 1 through the port of the mounting grooves 21. By setting the mounting grooves 21, the height of the mounting protrusions 13 can be greater than the thickness of the mounting frame 41 of the elastic element 4, thereby strengthening the stability of the elastic element 4 on the main body 1. Furthermore, the cooperation between the mounting protrusions 13 and the mounting grooves 21 also provides guidance for the operation when the main body 1 is inserted into the outer shell 2, ensuring that the main body 1 and the outer shell 2 are accurately inserted and assembled.

[0025] Additionally, a limiting protrusion 36 is formed on the side of the shielding door 3 facing away from the insertion direction of the fiber optic connector. When the limiting protrusion 36 swings with the shielding door 3 to abut against the inner wall of the outer shell 2, the first guide surface 32 is parallel to the insertion direction of the fiber optic connector. The limiting protrusion 36 restricts the maximum swing amplitude of the shielding door 3, so that when the shielding door 3 swings to its maximum amplitude, the first guide surface 32 is parallel to the insertion direction of the fiber optic connector, which strengthens the guiding effect of the fiber optic connector in the insertion direction and facilitates use.

[0026] In addition, when the main body 1 is inserted into the outer shell 2, the two can be fastened by snap-fit. In this embodiment, the joint between the main body 1 and the outer shell 2 is welded. Specifically, a ring of mating protrusions is formed on the main body 1, and a ring of mating grooves is formed on the outer shell 2. After the main body 1 and the outer shell 2 are inserted into place, the mating protrusions and the mating grooves form an interference fit. The weld seam is located between the mating protrusions and the mating grooves. Through the above welding treatment, the assembly gap between the main body 1 and the outer shell 2 after insertion is eliminated, and the overall dustproof performance of the adapter is improved.

[0027] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0028] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dustproof fiber optic adapter, comprising a main body (1), an outer shell (2), shielding doors (3), and an elastic element (4), wherein two shielding doors (3) are symmetrically arranged within the port of the main body (1), and one end of the main body (1) is inserted into the outer shell (2), characterized in that: The shielding door (3) has a first guide block (31) formed at each end of the side facing the direction of insertion of the fiber optic connector. The first guide block (31) has a first guide surface (32) formed on the end face facing the direction of insertion of the fiber optic connector. A second guide block (33) is formed on the outer side of the first guide surface (32). A second guide surface (34) is formed on the inner side of the second guide block (33) and is connected to the first guide surface (32). The second guide surface (34) is inclined outward from the connection point with the first guide surface (32).

2. The dustproof fiber optic adapter according to claim 1, characterized in that: Two mounting windows (11) are symmetrically opened on the part of the main body (1) that is inserted into the outer shell (2). A hinge groove (12) is provided on the end face of the mounting window (11). The shielding door (3) passes through the mounting window (11) so that the hinge shaft of the shielding door (3) is engaged in the hinge groove (12). The elastic element (4) is set on the main body (1) and acts on the side of the shielding door (3) away from the direction of insertion of the optical fiber connector.

3. The dustproof fiber optic adapter according to claim 2, characterized in that: The elastic element (4) includes a mounting frame (41) and an elastic arm (42). The mounting frame (41) has several mounting slots (43). The mounting window (11) has several mounting protrusions (13) that match the mounting slots (43). The mounting frame (41) is placed on the mounting window (11) so that the mounting protrusions (13) pass through the mounting slots (43). The free end of the elastic arm (42) passes through the mounting window (11) and abuts against the side of the shielding door (3) away from the direction of the fiber optic connector insertion.

4. The dustproof fiber optic adapter according to claim 3, characterized in that: The shielding door (3) has a limiting groove (35) on the side opposite to the direction of insertion of the optical fiber connector, and the free end of the elastic arm (42) is located in the limiting groove (35).

5. The dustproof fiber optic adapter according to claim 3, characterized in that: The mounting frame (41) is bent downward at one end to form a plug-in part (44), and a plug-in groove (14) is provided on the end face of the mounting window (11), and the plug-in part (44) is inserted into the plug-in groove (14).

6. The dustproof fiber optic adapter according to claim 3, characterized in that: The inner wall of the outer shell (2) is provided with a plurality of mounting grooves (21) that extend through the outer shell (2) to one end and match the mounting protrusion (13). The mounting protrusion (13) is located in the mounting groove (21), so that the mounting frame (41) is held between the end face of the mounting window (11) and the inner wall of the outer shell (2).

7. The dustproof fiber optic adapter according to claim 6, characterized in that: A limiting protrusion (36) is formed on the side of the shielding door (3) away from the insertion direction of the optical fiber connector. When the limiting protrusion (36) swings with the shielding door (3) to abut against the inner wall of the outer shell (2), the first guide surface (32) is parallel to the insertion direction of the optical fiber connector.

8. The dustproof fiber optic adapter according to claim 1, characterized in that: The joint between the main body (1) and the outer shell (2) is welded.

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