Dustproof and anti-reversion optical fiber plug

Abstract

The utility model discloses a dustproof anti-reversion optical fiber plug, which comprises a first optical fiber, an outer sleeve and a ceramic tube, the end part of the outer sleeve is connected with a connecting plug, the connecting plug comprises a connecting part and a plurality of elastic sheets consisting of a first elastic sheet and a second elastic sheet, the connecting part is in a circular truncated cone shape, one end of the first elastic sheet is connected with the edge of the connecting part, and the other end of the first elastic sheet is connected with the ceramic tube. An annular clamping groove is formed between the connecting part and the first elastic sheet, and a convex ring is formed between the first elastic sheet and the second elastic sheet; gaps are formed among the elastic sheets, and the elastic sheets are annularly connected to the connecting part; and a dustproof sleeve is sleeved on the elastic sheet. And gaps are formed between the elastic sheets, so that the elastic sheets are easy to stretch and deform. And clamping after butt joint with an interface of an adapter is facilitated. As the elastic sheets are sleeved with the dustproof sleeves, the dustproof sleeves can prevent dust from entering the interior through gaps between the elastic sheets, and the dust is prevented from falling on the end face of the optical fiber. Light propagation is smooth, light loss is avoided, and the reliability of the optical fiber plug is higher.

Description

Technical Field

[0001] This utility model relates to a dustproof and anti-reverse fiber optic plug, belonging to the field of dustproof and anti-reverse fiber optic plugs. Background Technology

[0002] In existing technologies, the locking between the fiber optic connector and adapter uses a snap-fit ​​connection after insertion. Pressing the pressure plate disengages the latches, opening the connection between the fiber optic connector and adapter. However, a gap exists between the connector and adapter, allowing dust to easily enter the fiber optic connector. If dust settles on the fiber end face, it will affect light propagation, causing optical loss and impacting the reliability of the fiber optic connector. Therefore, preventing dust from entering the fiber optic connector is a crucial technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a dustproof and anti-reverse fiber optic plug.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a dustproof and anti-reverse fiber optic plug, comprising a first optical fiber, an outer jacket, and a ceramic tube. The outer jacket covers the outer side of the end of the ceramic tube, and the first optical fiber passes through the outer jacket and the ceramic tube. The end of the first optical fiber is flush with the end of the ceramic tube. A cap is fitted onto the ceramic tube. A connector is connected to the end of the outer jacket. The connector includes a connecting part and several spring pieces composed of a first spring piece and a second spring piece. The connecting part is frustum-shaped. One end of the first spring piece is connected to the edge of the connecting part, and the other end is connected to the second spring piece. An annular groove is formed between the connecting part and the first spring piece, and a convex ring is formed between the first spring piece and the second spring piece. The several spring pieces have gaps between them and are connected to the connecting part in an annular shape. A dustproof sleeve is fitted onto the spring pieces.

[0005] A further feature of this invention is that dust covers are provided on both the outer and inner sides of the spring sheet.

[0006] The present invention is further configured such that: the dust cover includes a membrane tube, a first ring and a second ring, the first ring is sleeved in the slot, the second ring is sleeved in the inner bottom end of the spring piece, and the middle part of the membrane tube is folded over and sleeved in the inner and outer parts of the spring piece.

[0007] The present invention is further configured such that the end of the cap abuts against the second ring.

[0008] The present invention is further configured such that: the connector is inserted into the adapter interface, the adapter interface includes a body, a retaining ring, a second optical fiber and a tube, the retaining ring is connected to the outer periphery of the end of the body, and the tube is connected to the center of the end of the body; the retaining ring is engaged with the outer side of the annular groove; the tube replaces the cap and abuts against the second ring.

[0009] The present invention is further configured such that: a protrusion is connected to the inner wall of the insertion tube; a notch is provided on the circumferential surface of the ceramic tube, and the protrusion matches the notch.

[0010] Compared with existing technologies, the advantages of this invention are as follows: Because there are gaps between the spring contacts, and the spring contacts are easily deformed and expanded, an annular groove is formed between the connecting part and the first spring contact, and a convex ring is formed between the first and second spring contacts; this facilitates locking and connection with the adapter interface. Because dust covers are fitted onto the spring contacts, these covers prevent dust from entering the interior through the gaps between the spring contacts, thus avoiding dust settling on the end face of the optical fiber. This results in smooth light propagation, lossless light transmission, and higher reliability of the optical fiber connector. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a dustproof and anti-reverse fiber optic plug according to a preferred embodiment of the present invention;

[0012] Figure 2 A schematic diagram of the dustproof and anti-reverse fiber optic plug and sheath;

[0013] Figure 3 This is a structural diagram of the sheath;

[0014] Figure 4 A schematic diagram of the structure of the dustproof and anti-reverse fiber optic plug, sheath, and adapter interface;

[0015] Figure 5 This is a schematic diagram of the structure of the first optical fiber and the ceramic tube.

[0016] In the diagram: 1. First optical fiber; 2. Outer jacket; 3. Connector; 4. Ceramic tube; 5. Dust cover; 6. Cap; 7. Body; 8. Clamping ring; 9. Second optical fiber; 10. Insertion tube; 11. Notch; 12. Protrusion; 31. Connecting part; 32. First spring; 33. Second spring; 34. Gap; 51. Membrane tube; 52. First ring; 53. Second ring. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0018] See appendix Figure 1-5As shown, a dustproof and anti-reverse fiber optic plug in this embodiment includes a first optical fiber 1, an outer jacket 2, and a ceramic tube 4. The outer jacket 2 covers the outer side of the end of the ceramic tube 4. The first optical fiber 1 passes through the outer jacket 2 and the ceramic tube 4, and the end of the first optical fiber 1 is flush with the end of the ceramic tube 4. A cap 6 is fitted onto the ceramic tube 4. A connector 3 is connected to the end of the outer jacket 2. The connector 3 includes a connecting part 31 and several springs consisting of a first spring 32 and a second spring 33. The connecting part 31 is frustum-shaped. One end of the first spring 32 is connected to the edge of the connecting part 31, and the other end is connected to the second spring 33. An annular groove is formed between the connecting part 31 and the first spring 32, and a convex ring is formed between the first spring 32 and the second spring 33. The several springs have gaps 34 and are connected to the connecting part 31 in an annular shape. A dustproof sleeve 5 is fitted onto the springs. The dust cover 5 includes a membrane tube 51, a first ring 52, and a second ring 53. The first ring 52 is fitted into the slot, and the second ring 53 is fitted into the inner bottom end of the spring piece. The middle part of the membrane tube 51 is folded over and fitted into the inside and outside of the spring piece. The end of the cap 6 abuts against the second ring 53. The connector 3 is inserted into the adapter interface, which includes a body 7, a retaining ring 8, a second optical fiber 9, and a tube 10. The retaining ring 8 is connected to the outer periphery of the end of the body 7, and the tube 10 is connected to the center of the end of the body 7. The retaining ring 8 is engaged with the outside of the annular slot. Before use, the cap 6 is removed, and the tube 10 replaces the cap 6, abutting against the second ring 53.

[0019] To prevent the fiber optic plug and adapter end faces from being misaligned and inserted incorrectly, the present invention is further configured such that: a protrusion 12 is connected to the inner wall of the insertion tube 10; a notch 11 is provided on the circumferential surface of the ceramic tube 4, and the protrusion 12 matches the notch 11.

[0020] In summary, the principle of the dustproof and anti-reverse fiber optic plug shown in this utility model is as follows: Due to the gaps between the spring contacts and their easy expansion and contraction, an annular groove is formed between the connecting part 31 and the first spring contact 32, and a convex ring is formed between the first spring contact 32 and the second spring contact 33; this facilitates engagement with the adapter interface. Specifically, the adapter interface includes a body 7, a retaining ring 8, a second optical fiber 9, and a insertion tube 10. The retaining ring 8 is connected to the outer periphery of the end of the body 7, and the insertion tube 10 is connected to the center of the end of the body 7; the retaining ring 8 is engaged with the outer side of the annular groove; the convex ring formed by the first spring contact 32 and the second spring contact 33 expands into the inside of the retaining ring 8. The plug 3 engages with the retaining ring 8. The convex strip 12 matches the notch 11. The insertion tube 10 is fitted onto the ceramic tube 4. The dustproof sleeve 5 is made of nitrile rubber. The first optical fiber 1 and the second optical fiber 9 are connected. When storing the dustproof and anti-reverse fiber optic plug, the cap 6 is closed and fitted onto the ceramic tube 4. Before use, remove the cap 6 and discard it. Replace the cap 6 with the insertion tube 10, which abuts against the second ring 53. Because the inner and outer sides of the spring are fitted with the folded membrane tube 51, the first ring 52 is held by the retaining ring 8 and the retaining groove, and the second ring 53 is held by the end of the insertion tube 10 and the end of the connecting part 31. The dust cover 5 is securely connected to both the inner and outer sides of the spring. This prevents dust from entering the interior through the gaps between the springs, avoiding dust settling on the end face of the optical fiber. Light propagation is smooth, lossless, and the reliability of the optical fiber connector is higher.

[0021] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A dustproof and anti-reverse fiber optic plug, comprising a first fiber (1), an outer jacket (2) and a ceramic tube (4), wherein the outer jacket (2) covers the outer side of the end of the ceramic tube (4), the first fiber (1) passes through the outer jacket (2) and the ceramic tube (4), and the end of the first fiber (1) is flush with the end of the ceramic tube (4); a cap (6) is fitted onto the ceramic tube (4). Its features are, The end of the outer jacket (2) is connected to a connector (3). The connector (3) includes a connecting part (31) and a plurality of spring pieces consisting of a first spring piece (32) and a second spring piece (33). The connecting part (31) is in the shape of a frustum. One end of the first spring piece (32) is connected to the edge of the connecting part (31), and the other end is connected to the second spring piece (33). An annular groove is formed between the connecting part (31) and the first spring piece (32). A convex ring is formed between the first spring piece (32) and the second spring piece (33). There is a gap (34) between the plurality of spring pieces, which are connected to the connecting part (31) in an annular shape. A dust cover (5) is fitted on the spring piece.

2. The dustproof and anti-reverse fiber optic plug according to claim 1, characterized in that, Dust covers (5) are provided on both the outer and inner sides of the spring sheet.

3. The dustproof and anti-reverse fiber optic plug according to claim 2, characterized in that, The dust cover (5) includes a membrane tube (51), a first ring (52) and a second ring (53). The first ring (52) is fitted into the slot, and the second ring (53) is fitted into the inner bottom end of the spring piece. The middle part of the membrane tube (51) is folded over and fitted into the inside and outside of the spring piece.

4. The dustproof and anti-reverse fiber optic plug according to claim 3, characterized in that, The end of the cap (6) abuts against the second ring (53).

5. The dustproof and anti-reverse fiber optic plug according to claim 4, characterized in that, The connector (3) is inserted into the adapter interface, which includes a body (7), a retaining ring (8), a second optical fiber (9), and a tube (10). The retaining ring (8) is connected to the outer periphery of the end of the body (7), and the tube (10) is connected to the center of the end of the body (7). The retaining ring (8) is engaged with the outside of the annular groove. The tube (10) replaces the cap (6) and abuts against the second ring (53).

6. The dustproof and anti-reverse fiber optic plug according to claim 5, characterized in that, The inner wall of the cannula (10) is connected with a protrusion (12); a notch (11) is provided on the circumferential surface of the ceramic tube (4), and the protrusion (12) matches the notch (11).

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