Dustproof cap for optical fiber ferrule

Abstract

The utility model discloses a dustproof cap for an optical fiber ferrule, which comprises a hollow cap body, an opening is arranged at one end of the cap body, a connecting part connected with an optical fiber connector is arranged on the inner wall of the cap body close to the opening, a traction ring is fixed at one end of the cap body far away from the opening, and a plurality of reinforcing ribs are sequentially arranged on the outer wall of the cap body along the circumference. The dustproof cap is connected with the optical fiber connector through the connecting part, so that the dustproof cap and the optical fiber connector can be conveniently connected together and can be conveniently detached, and the dustproof cap is an injection molding part, so that compared with an optical fiber insertion core dustproof cap technology, the dustproof cap is simple in structure, low in production cost and high in practicability. Meanwhile, the dustproof cap can also play a role in dust prevention and sealing and can be spliced with an optical fiber connector, and a traction ring is arranged on the dustproof cap, so that the optical fiber can be conveniently used and dragged to move.

Description

Technical Field

[0001] The utility model relates to the field of optical fibers, in particular to an optical fiber plug-in dust cap. Background Art

[0002] Optical fiber is a light transmission tool that uses the principle of total reflection of light in fibers made of glass or plastic. Therefore, dust, dirt and other contaminants can easily interfere with the transmission of optical signals between optical fibers. Therefore, after the optical fiber is produced, the optical fiber ferrule needs to be plugged with a dust cap.

[0003] For example, the Chinese utility model patent with application number: CN202222002419.3, the name of the utility model creation is a fiber optic ferrule dust cap, which discloses "including a cap sleeve and a cap cover arranged on one side of the cap sleeve, and also including a accommodating cavity and a sliding cavity arranged in the cap sleeve, the accommodating cavity and the sliding cavity are interconnected; a guide component, the guide component is arranged at one end of the sliding cavity close to the outside; an anti-slip component, the anti-slip component is located in the sliding component, and is used to increase the friction between the optical fiber ferrule and the cap sleeve; a sealing component, the sealing component is arranged in the sliding cavity, and when the optical fiber ferrule is plugged into the cap sleeve, the sealing component is used to seal the accommodating cavity." The above technical purpose is: the adsorption of the silicone suction cup can fasten the optical fiber ferrule in the cap sleeve, thereby increasing the optical fiber The friction of the ferrule prevents the fiber optic ferrule from falling off, but the silicone suction cup is localized. When there are cracks or holes on the fiber optic ferrule shell or there is garbage between the silicone suction cup and the fiber optic ferrule shell, the adsorption of the silicone suction cup will be greatly reduced. After the optical fiber has been used for a long time, it is inevitable that the optical fiber will be pulled continuously during use. At this time, the silicone suction cup may be damaged when it is constantly pulled. The silicone material will oxidize and harden after permanent wear, and its adsorption to the fiber optic ferrule shell will also be reduced. When the adsorption of the silicone suction cup is not reduced, because the adsorption of the silicone suction cup is very strong, it takes a lot of force to separate the dust cap from the fiber optic ferrule shell, and the replacement and cleaning of the dust cap are also inconvenient. Utility Model Content

[0004] The utility model aims to provide a dustproof cap for an optical fiber insert.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following scheme: an optical fiber ferrule dust cap, comprising a hollow cap body, an opening is provided at one end of the cap body, a connecting portion connected to the optical fiber connector is provided on the inner wall of the cap body near the opening, a traction ring is fixed to the end of the cap body away from the opening, and a plurality of reinforcing ribs are provided in sequence along the circumference on the outer wall of the cap body. The utility model is connected to the optical fiber connector through the connecting portion, so that the dust cap and the optical fiber connector can be conveniently connected together and can be conveniently disassembled, and the dust cap is an injection molded part. Compared with a fiber optic ferrule dust cap technology, it has a simple structure and low production cost. At the same time, it can also play the same role of dust prevention, sealing and splicing with the optical fiber connector as a fiber optic ferrule dust cap. A traction ring is also provided on the dust cap, which can be used to conveniently drag the optical fiber to move.

[0006] As a further solution of the utility model, the connecting portion includes an inlet symmetrically arranged on the inner wall of the cap body near one end of the opening, an arc groove connected to the inlet is provided on the inner wall of the cap body, and a card groove connected to the top of the arc groove is provided on the inner wall of the cap body.

[0007] As a preferred solution of the utility model, an upwardly tilted transition step is provided at the connection between the arc-shaped groove and the clamping groove.

[0008] As a preferred solution of the utility model, an arc-shaped convex strip is fixed to the arc-shaped groove near the transition step.

[0009] As a further solution of the utility model, the inlet is in an eight-shaped shape.

[0010] As a further solution of the utility model, the cap body is composed of a first sleeve and a second sleeve, a transition arc surface is provided at the connection between the first sleeve and the second sleeve, the opening is arranged on one end of the first sleeve, the traction ring is arranged on one end of the second sleeve, and the reinforcement ribs are arranged on the outer walls of the first sleeve and the second sleeve in sequence.

[0011] As a preferred solution of the utility model, the traction ring includes an arc-shaped block fixed on the top of the second sleeve, and a through hole capable of penetrating the arc-shaped block is provided on the arc-shaped block.

[0012] As a further solution of the utility model, arcuate surfaces are provided on both sides of the arcuate block, and an annular groove is provided at the connection between the arcuate block and the second sleeve.

[0013] In summary, the utility model has the following beneficial effects compared with the prior art: the utility model is connected to the optical fiber connector through a connecting part, so that the dust cap can be conveniently connected to the optical fiber connector and can be conveniently disassembled, and the dust cap is an injection molded part. Compared with a fiber optic ferrule dust cap technology, it has a simple structure and low production cost. At the same time, it can also play the same role as a fiber optic ferrule dust cap in dust prevention, sealing and splicing with the optical fiber connector. A traction ring is also provided on the dust cap, which can be used to conveniently drag the optical fiber to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional view of the utility model.

[0015] Figure 2 It is a cross-sectional view of the utility model.

[0016] Explanation of the accompanying drawings: 1. Cap body; 2. Opening; 3. Connecting part; 4. Traction ring; 5. Reinforcing rib; 11. Inlet; 12. Arc groove; 13. Card groove; 14. Transition step; 15. Arc convex strip: 21. First sleeve; 22. Second sleeve: 23. Transition arc surface; 31. Arc block: 32. Through hole; 41. Arc surface; 42. Annular groove. DETAILED DESCRIPTION

[0017] The following specific implementation content provides a variety of different embodiments or examples for implementing the utility model. Of course, these are only embodiments or examples and are not intended to be limiting. In addition, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0018] In addition, space-related words may be used, such as "below", "lower side", "from the inside out", "above", "upper side" and similar words. These relative words are for the convenience of describing the relationship between one element or feature and another element or feature in the drawings. These spatial relative words include different orientations of the device in use or operation, as well as the orientations described in the drawings. The device may be turned to different orientations, rotations or other orientations, and the space-related adjectives used therein may also be interpreted in the same way. Therefore, it cannot be understood as a limitation on the utility model. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0019] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods: Figure 1 to Figure 2The optical fiber ferrule dust cap shown includes a hollow cap body 1, an opening 2 is provided at one end of the cap body 1, a connecting portion 3 connected to the optical fiber connector is provided on the inner wall of the cap body 1 near the opening 2, a traction ring 4 is fixed to the end of the cap body 1 away from the opening 2, and a plurality of reinforcing ribs 5 are provided in sequence along the circumference on the outer wall of the cap body 1.

[0020] A further embodiment of the connecting portion 3 in the present utility model: the connecting portion 3 includes an inlet 11 symmetrically arranged on the inner wall of the cap body 1 near one end of the opening 2, an arcuate groove 12 connected to the inlet 11 is provided on the inner wall of the cap body 1, and a card groove 13 connected to the top of the arcuate groove 12 is provided on the inner wall of the cap body 1.

[0021] A further embodiment of the arc groove 12 in the utility model is as follows: an upwardly tilted transition step 14 is provided at the connection between the arc groove 12 and the clamping groove 13 .

[0022] A further embodiment of the arc-shaped groove 12 in the present invention is as follows: an arc-shaped convex strip 15 is fixed to the arc-shaped groove 12 near the transition step 14 .

[0023] A further embodiment of the inlet 11 in the present invention: the inlet 11 is in an eight-shaped shape.

[0024] A further embodiment of the cap body 1 in the utility model: the cap body 1 is composed of a first sleeve 21 and a second sleeve 22, a transition arc surface 23 is provided at the connection between the first sleeve 21 and the second sleeve 22, the opening 2 is arranged on one end of the first sleeve 21, the traction ring 4 is arranged on one end of the second sleeve 22, and the reinforcing ribs 5 are arranged on the outer walls of the first sleeve 21 and the second sleeve 22 in sequence.

[0025] A further embodiment of the traction ring 4 in the present invention: the traction ring 4 includes an arc block 31 fixed on the top of the second sleeve 22, and a through hole 32 that can penetrate the arc block 31 is provided on the arc block 31.

[0026] A further embodiment of the arc block 31 in the present invention is as follows: arc surfaces 41 are provided on both sides of the arc block 31 , and an annular groove 42 is provided at the connection between the arc block 31 and the second sleeve 22 .

[0027] When in use: the optical fiber dust cap in the present technology is an injection molded part, which is formed by integral injection molding of a mold. Compared with the method of using a silicone suction cup in a fiber optic ferrule dust cap technology, it is simpler and has a lower production cost. When in use, two sliders are provided on the outer shell of the optical fiber connector connected to the optical fiber dust cap. When the two sliders on the outer shell of the optical fiber connector enter from the opening 2, they slide along the arc groove 12 and finally move into the through card groove 13. Because the optical fiber dust cap is an injection molded part, the optical fiber dust cap has a certain toughness. Therefore, when the slider on the optical fiber connector passes through the transition step 14 and the arc convex strip 15, the user only needs to apply a little force to make the slider on the optical fiber connector snap into the card groove 13, so that the optical fiber connector and the optical fiber dust cap will be spliced ​​together. Under the action of the degree step 14 and the arc convex strip 15, the degree step 14 and the arc convex strip 15 are prevented from automatically withdrawing from the card groove 13. The reinforcing rib 5 is to reinforce the strength of the optical fiber dust cap to make the optical fiber dust cap more durable, and the traction ring 4 is to facilitate the user to pull the optical fiber when the optical fiber dust cap is connected to the optical fiber connector.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A fiber optic ferrule dust cap, comprising a hollow cap body (1), an opening (2) being provided at one end of the cap body (1), characterized in that: A connecting portion (3) connected to an optical fiber connector is provided on the inner wall of the cap body (1) near the opening (2), a traction ring (4) is fixed to the end of the cap body (1) away from the opening (2), and a plurality of reinforcing ribs (5) are provided in sequence along the circumference of the outer wall of the cap body (1).

2. The optical fiber ferrule dust cap according to claim 1, characterized in that: The connecting portion (3) comprises an inlet (11) symmetrically arranged on the inner wall of the cap body (1) near one end of the opening (2), an arc-shaped groove (12) communicating with the inlet (11) is provided on the inner wall of the cap body (1), and a clamping groove (13) communicating with the top of the arc-shaped groove (12) is provided on the inner wall of the cap body (1).

3. The optical fiber ferrule dust cap according to claim 2, characterized in that: An upwardly tilted transition step (14) is provided at the connection between the arc-shaped groove (12) and the clamping groove (13).

4. The optical fiber ferrule dust cap according to claim 2, characterized in that: An arc-shaped convex strip (15) is fixed to the arc-shaped groove (12) near the transition step (14).

5. The optical fiber ferrule dust cap according to claim 2, characterized in that: The inlet (11) is in an eight-shaped shape.

6. The optical fiber ferrule dust cap according to claim 1, characterized in that: The cap body (1) is composed of a first sleeve (21) and a second sleeve (22); a transition arc surface (23) is provided at the connection between the first sleeve (21) and the second sleeve (22); the opening (2) is arranged on one end of the first sleeve (21); the traction ring (4) is arranged on one end of the second sleeve (22); and the reinforcing ribs (5) are arranged on the outer walls of the first sleeve (21) and the second sleeve (22) in sequence.

7. The optical fiber ferrule dust cap according to claim 6, characterized in that: The traction ring (4) comprises an arc-shaped block (31) fixed on the top of the second sleeve (22), and a through hole (32) capable of penetrating the arc-shaped block (31) is provided on the arc-shaped block (31).

8. The optical fiber ferrule dust cap according to claim 7, characterized in that: Arc surfaces (41) are provided on both sides of the arc block (31), and an annular groove (42) is provided at the connection between the arc block (31) and the second sleeve (22).

Images