Optical fiber connector self-locking structure capable of being quickly disassembled and manufacturing method

Abstract

The invention discloses an optical fiber connector self-locking structure capable of being quickly disassembled and a manufacturing method, and belongs to the technical field of optical fiber connectors, the optical fiber connector self-locking structure comprises a first locking mechanism and a second locking mechanism, the first locking mechanism is clamped with the second locking mechanism, the first locking mechanism comprises a first clamping sleeve, the first clamping sleeve is fixedly connected with a rotary clamping assembly, and the rotary clamping assembly is fixedly connected with the optical fiber connector. A first connecting mechanism is arranged on one side of the first clamping sleeve, and a movable clamping assembly is movably installed between the first clamping sleeve and the first connecting mechanism. According to the optical fiber connector self-locking structure capable of being quickly disassembled and the manufacturing method, the first locking mechanism and the second locking mechanism can achieve quick insertion and quick disassembly, construction and first-aid repair efficiency can be improved without tools, axial and circumferential double limiting can be achieved by arranging the rotary clamping assembly and the movable clamping assembly, and the self-locking structure is convenient to use. The anti-vibration, anti-pulling and anti-loosening performance is improved, and monitoring and early warning can be achieved by arranging a micro pressure sensor.

Description

Technical Field

[0001] This invention relates to the field of fiber optic connector technology, and in particular to a self-locking structure and manufacturing method for a quick-detachable fiber optic connector. Background Technology

[0002] Optical fiber, short for optical waveguide fiber, is a type of fiber made of glass or plastic that serves as a means of transmitting light. With the continuous development of communication technology, optical fiber transmission is increasingly being used in communication systems. Unlike electrical signal transmission, optical signal transmission cannot simply involve twisting the ends of two optical fibers together. Instead, fiber optic connectors are typically used to connect them, allowing the optical signal to be transmitted through the required channel to ensure the smooth operation of the optical fiber link.

[0003] Existing fiber optic connectors mostly use single-stage snap-fit ​​or threaded connections for locking, which lacks sufficient reliability and is prone to loosening under vibration or pulling, leading to optical signal attenuation or even interruption. Furthermore, they lack status monitoring functions, making it impossible to determine whether they are fully locked, thus posing a hidden risk of failure. Summary of the Invention

[0004] The purpose of this invention is to provide a self-locking structure and manufacturing method for a quick-disassembly fiber optic connector. The first locking mechanism and the second locking mechanism enable quick insertion and removal without tools, which can improve construction and emergency repair efficiency. The rotating snap-fit ​​component and the moving snap-fit ​​component enable dual axial and circumferential limiting, which improves the resistance to vibration, tension and loosening. The miniature pressure sensor enables monitoring and early warning.

[0005] To achieve the above objectives, the present invention provides a quick-release self-locking structure for an optical fiber connector, comprising a first locking mechanism and a second locking mechanism, wherein the first locking mechanism and the second locking mechanism are engaged, the first locking mechanism comprising a first snap-fit ​​sleeve, a rotating snap-fit ​​component fixedly connected to the first snap-fit ​​sleeve, a first connecting mechanism provided on one side of the first snap-fit ​​sleeve, and a movable snap-fit ​​component movably installed between the first snap-fit ​​sleeve and the first connecting mechanism.

[0006] Preferably, the rotating snap-fit ​​assembly includes two rotating snap-fit ​​blocks, both of which are fixedly connected to the first snap-fit ​​sleeve. The two rotating snap-fit ​​blocks are symmetrically arranged about the central axis of the first snap-fit ​​sleeve, and one side of each rotating snap-fit ​​block is serrated.

[0007] Preferably, the movable locking assembly includes a connecting plate, on which locking rods are symmetrically arranged, and locking buckles are provided at the ends of the locking rods.

[0008] Preferably, the inner side of the first card sleeve is provided with a first insert and a first tight-fitting ring, the first insert is connected to the first tight-fitting ring, and the first tight-fitting ring is connected to the first connecting mechanism.

[0009] Preferably, the second locking mechanism includes a second locking sleeve, on which a first sliding groove is provided for the movement of the rotating block and the locking buckle. A locking hole is provided in the middle of the first sliding groove for the locking buckle to pop out. The end of the first sliding groove is connected to the second sliding groove. The second sliding groove allows the rotating block to rotate and slide. A fixing block corresponding to the sawtooth shape of the rotating block is provided at the end of the second sliding groove. A second insert and a third tight-fitting ring are provided on the inner side of the second locking sleeve. The third tight-fitting ring is connected to the second connecting mechanism.

[0010] Preferably, the inner sides of the first locking mechanism and the second locking mechanism are connected to the first optical fiber and the second optical fiber respectively through the first connecting mechanism and the second connecting mechanism, and the first connecting mechanism and the second connecting mechanism have the same structure.

[0011] Preferably, the first connecting mechanism includes a tailstock sleeve, and a second tight-fitting ring is provided on the inner side of the tailstock sleeve. The second tight-fitting ring of the first connecting mechanism is connected to the first tight-fitting ring, and the second tight-fitting ring of the second connecting mechanism is connected to the third tight-fitting ring.

[0012] Preferably, a miniature pressure sensor is installed in the second chute, and the miniature pressure sensor is connected to the early warning device.

[0013] This invention provides a method for manufacturing a quick-detachable self-locking structure for fiber optic connectors, specifically including the following steps: S1. Parts preparation: The first snap-fit ​​sleeve, the second snap-fit ​​sleeve, the movable snap-fit ​​assembly, and the tailstock sleeve are prepared by precision injection molding of high-temperature engineering plastics; the first insert and the second insert are prepared by precision grinding and polishing of zirconia ceramics; the first tight-fitting ring, the second tight-fitting ring, and the third tight-fitting ring are prepared by stainless steel. S2. Component Assembly: The first ferrule and the first tight-fitting ring are press-fitted with the first snap-fit ​​sleeve, and the second ferrule and the third tight-fitting ring are press-fitted with the second snap-fit ​​sleeve. The movable snap-fit ​​assembly is fitted onto the first tight-fitting ring. Then, the first optical fiber is passed through the second tight-fitting ring, the first tight-fitting ring, and the first ferrule. The second optical fiber is passed through the second tight-fitting ring, the third tight-fitting ring, and the second ferrule. The first tight-fitting ring and the second tight-fitting ring, as well as the third tight-fitting ring and the second tight-fitting ring, are crimped together using crimping pliers. The second tight-fitting ring is press-fitted with the tailstock sleeve. Then, the first locking mechanism is inserted into the second locking mechanism along the first groove on the second snap-fit ​​sleeve. The first snap-fit ​​sleeve is rotated so that the rotating block is inserted into the second groove and engages with the fixed block. At this time, the rotating block contacts the miniature pressure sensor.

[0014] Therefore, the present invention adopts the above-mentioned self-locking structure and manufacturing method of a quick-disassembly fiber optic connector. The first locking mechanism and the second locking mechanism can realize quick insertion and quick disassembly, which can improve the efficiency of construction and emergency repair without tools. The rotating snap-fit ​​component and the moving snap-fit ​​component can realize dual axial and circumferential limiting, improve the vibration resistance, tensile resistance and anti-loosening performance, and the miniature pressure sensor can realize monitoring and early warning.

[0015] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a self-locking structure for a quick-detachable fiber optic connector according to the present invention. Figure 2 This is a cross-sectional view of a self-locking structure for a quick-detachable fiber optic connector according to the present invention. Figure 3 This is a cross-sectional view of the first locking mechanism of the self-locking structure of a quick-detachable fiber optic connector according to the present invention. Figure 4 This is a cross-sectional view of the second locking mechanism of the self-locking structure of a quick-detachable fiber optic connector according to the present invention. Figure 5 This is a schematic diagram of the structure of a quick-detachable rotating clip for an optical fiber connector according to the present invention. Figure 6 This is a schematic diagram of the structure of the first slide groove, the second slide groove, and the locking hole of a quick-detachable fiber optic connector according to the present invention.

[0017] Figure Labels 1. First locking mechanism; 11. First snap-fit ​​sleeve; 12. First ferrule; 13. First tight-fitting ring; 14. Rotating locking block; 15. Moving snap-fit ​​assembly; 151. Connecting disc; 152. Snap-fit ​​rod; 153. Snap-fit ​​buckle; 2. Second locking mechanism; 21. Second snap-fit ​​sleeve; 22. Second ferrule; 23. Third tight-fitting ring; 24. First sliding groove; 25. Second sliding groove; 26. Snap-fit ​​hole; 3. Tailstock sheath; 4. Second tight-fitting ring; 5. First optical fiber; 6. Second optical fiber. Detailed Implementation

[0018] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention 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.

[0020] Example 1 like Figures 1 to 6 As shown, this invention provides a quick-release self-locking structure for an optical fiber connector, including a first locking mechanism 1 and a second locking mechanism 2. The first locking mechanism 1 and the second locking mechanism 2 are snapped together. The inner sides of the first locking mechanism 1 and the second locking mechanism 2 are respectively connected to a first optical fiber 5 and a second optical fiber 6 through a first connecting mechanism and a second connecting mechanism. The first locking mechanism 1 and the second locking mechanism 2 enable the first optical fiber 5 and the second optical fiber 6 to be aligned, forming a complete optical path. The first locking mechanism 1 includes a first snap-fit ​​sleeve 11. The inner side of the first snap-fit ​​sleeve 11 is provided with a first ferrule 12 and a first tight-fitting ring 13. The first ferrule 12 is connected to the first tight-fitting ring 13, and the first tight-fitting ring 13 is connected to the first connecting mechanism. The first snap-fit ​​sleeve 11 is the main body of the first locking mechanism 1, and it is interference-fitted with the first ferrule 12 and the first tight-fitting ring 13. The first ferrule 12 ensures accurate optical fiber alignment and reduces insertion loss and return loss. The first tight-fitting ring 13 can fix the first optical fiber 5 and the first connecting mechanism.

[0021] A rotating snap-fit ​​assembly is fixedly connected to the first snap-fit ​​sleeve 11. A first connecting mechanism is provided on one side of the first snap-fit ​​sleeve 11. A movable snap-fit ​​assembly 15 is movably installed between the first snap-fit ​​sleeve 11 and the first connecting mechanism. The rotating snap-fit ​​assembly can achieve axial limiting by rotating and snapping in the circumferential direction, while the movable snap-fit ​​assembly 15 can achieve axial clamping and self-locking, forming a double locking mechanism, which makes the connection between the first locking mechanism 1 and the second locking mechanism 2 more stable.

[0022] The rotating snap-fit ​​assembly includes two rotating snap-fit ​​blocks 14, both of which are fixedly connected to the first snap-fit ​​sleeve 11. The two rotating snap-fit ​​blocks 14 are symmetrically arranged about the central axis of the first snap-fit ​​sleeve 11, and one side of each rotating snap-fit ​​block 14 is serrated. The rotating snap-fit ​​blocks 14 are fixedly connected to the first snap-fit ​​sleeve 11, and rotating the first snap-fit ​​sleeve 11 allows the rotating snap-fit ​​blocks 14 to rotate. The serrated shape of the rotating snap-fit ​​blocks 14 facilitates snap-fit.

[0023] The movable locking assembly 15 includes a connecting plate 151, on which locking rods 152 are symmetrically arranged, and locking buckles 153 are provided at the ends of the locking rods 152. The connecting plate 151 is sleeved on the first clamping collar, and the first clamping collar does not affect the connecting plate 151 when it rotates with the first locking sleeve 11. One end of the locking rod 152 is fixedly installed on the connecting plate 151 to form a cantilever beam structure. The locking rod 152 can be bent to allow the locking buckle 153 to enter the first sliding groove 24, and when the locking buckle 153 reaches the locking hole 26, it automatically pops out of the locking hole 26 under its own action, realizing axial self-locking. Pressing the locking buckle 153 to enter the locking hole 26 can release the lock.

[0024] The second locking mechanism 2 includes a second locking sleeve 21. The second locking sleeve 21 is provided with a first sliding groove 24 for the rotatable locking block 14 and the locking buckle 153 to move. The first sliding groove 24 is provided with a locking hole 26 in the middle for the locking buckle 153 to pop out. The end of the first sliding groove 24 is connected to the second sliding groove 25. The second sliding groove 25 allows the rotatable locking block 14 to rotate and slide. The first sliding groove 24 allows the rotatable locking block 14 and the locking buckle 153 to enter the second locking sleeve 21 axially. The locking hole 26 allows the locking buckle 153 to pop out and achieve axial self-locking. The second sliding groove 25 allows the rotatable locking block 14 to rotate and slide.

[0025] The second slide groove 25 has a fixed locking block at its end that corresponds to the sawtooth shape of the rotating locking block 14. The fixed locking block can engage with the rotating locking block 14 to prevent reverse rotation and limit circumferential positioning. The inner side of the second locking sleeve 21 has a second insert 22 and a third tight-fitting ring 23. The third tight-fitting ring 23 is connected to the second connecting mechanism, and the second insert 22 precisely fits with the first ferrule 12, allowing the first optical fiber 5 and the second optical fiber 6 to connect and form a complete optical fiber path. A miniature pressure sensor is installed inside the second slide groove 25. The miniature pressure sensor and the early warning device are connected using existing technology. When the rotating locking block 14 engages with the fixed locking block, the side of the rotating locking block 14 contacts the miniature pressure sensor. When the contact between the rotating locking block 14 and the miniature pressure sensor is released, the early warning device issues an alarm.

[0026] The first and second connecting mechanisms have the same structure. The first connecting mechanism includes a tail sleeve 3, which protects the connection between the first optical fiber 5 and the first locking mechanism 1, as well as the connection between the second optical fiber 6 and the second locking mechanism 2, preventing damage. A second tightening ring 4 is provided inside the tail sleeve 3. The second tightening ring 4 of the first connecting mechanism is connected to the first tightening ring 13, and the second tightening ring 4 of the second connecting mechanism is connected to the third tightening ring 23. This enhances the fixation and tensile strength of the optical fiber, and improves its resistance to bending and tension.

[0027] This invention provides a method for manufacturing a quick-detachable self-locking structure for fiber optic connectors, specifically including the following steps: S1. Parts preparation: The first snap-fit ​​sleeve 11, the second snap-fit ​​sleeve 21, the movable snap-fit ​​assembly 15 and the tailstock sleeve 3 are prepared by precision injection molding of high temperature engineering plastic; the first insert 12 and the second insert 22 are prepared by precision grinding and polishing of zirconia ceramic; the first tight-fitting ring 13, the second tight-fitting ring 4 and the third tight-fitting ring 23 are prepared by stainless steel. S2. Component Assembly: The first ferrule 12 and the first retaining ring 13 are press-fitted with the first snap-fit ​​sleeve 11; the second ferrule 22 and the third retaining ring 23 are press-fitted with the second snap-fit ​​sleeve 21; the movable snap-fit ​​assembly 15 is fitted onto the first retaining ring 13; then the first optical fiber 5 is passed through the second retaining ring 4, the first retaining ring 13, and the first ferrule 12; the second optical fiber 6 is passed through the second retaining ring 4, the third retaining ring 23, and the second ferrule 22. The first tight-fitting ring 13 and the second tight-fitting ring 4, as well as the third tight-fitting ring 23 and the second tight-fitting ring 4, are crimped together using crimping pliers. The second tight-fitting ring 4 is then press-fitted with the tailstock sleeve 3. After that, the first locking mechanism 1 is inserted into the second locking mechanism 2 along the first sliding groove 24 on the second locking sleeve 21. The first locking sleeve 11 is rotated so that the rotating locking block 14 is inserted into the second sliding groove 25 and engages with the fixed locking block. At this time, the side wall of the rotating locking block 14 is in contact with the miniature pressure sensor.

[0028] Therefore, the present invention adopts the above-mentioned self-locking structure and manufacturing method of a quick-disassembly fiber optic connector. The first locking mechanism and the second locking mechanism can realize quick insertion and quick disassembly, which can improve the efficiency of construction and emergency repair without tools. The rotating snap-fit ​​component and the moving snap-fit ​​component can realize dual axial and circumferential limiting, improve the vibration resistance, tensile resistance and anti-loosening performance, and the miniature pressure sensor can realize monitoring and early warning.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A self-locking structure for a quick-detachable fiber optic connector, characterized in that: It includes a first locking mechanism and a second locking mechanism, the first locking mechanism and the second locking mechanism are engaged, the first locking mechanism includes a first engaging sleeve, a rotating engaging component is fixedly connected to the first engaging sleeve, a first connecting mechanism is provided on one side of the first engaging sleeve, and a movable engaging component is movably installed between the first engaging sleeve and the first connecting mechanism.

2. The self-locking structure of a quick-detachable fiber optic connector according to claim 1, characterized in that: The rotating snap-fit ​​assembly includes two rotating snap-fit ​​blocks, both of which are fixedly connected to the first snap-fit ​​sleeve. The two rotating snap-fit ​​blocks are symmetrically arranged about the central axis of the first snap-fit ​​sleeve, and one side of each rotating snap-fit ​​block is serrated.

3. The self-locking structure of a quick-detachable fiber optic connector according to claim 2, characterized in that: The movable locking assembly includes a connecting plate, on which locking rods are symmetrically arranged, and locking buckles are provided at the ends of the locking rods.

4. The self-locking structure of a quick-detachable fiber optic connector according to claim 3, characterized in that: The first card sleeve has a first insert and a first tight-fitting ring on its inner side. The first insert is connected to the first tight-fitting ring, and the first tight-fitting ring is connected to the first connecting mechanism.

5. The self-locking structure of a quick-detachable fiber optic connector according to claim 4, characterized in that: The second locking mechanism includes a second locking sleeve, on which a first sliding groove is provided for the movement of the rotating locking block and the locking buckle. A locking hole is provided in the middle of the first sliding groove for the locking buckle to pop out. The end of the first sliding groove is connected to the second sliding groove. The second sliding groove allows the rotating locking block to rotate and slide. A fixing block corresponding to the sawtooth shape of the rotating locking block is provided at the end of the second sliding groove. A second insert and a third tight-fitting ring are provided on the inner side of the second locking sleeve. The third tight-fitting ring is connected to the second connecting mechanism.

6. The self-locking structure of a quick-detachable fiber optic connector according to claim 5, characterized in that: The inner sides of the first locking mechanism and the second locking mechanism are respectively connected to the first optical fiber and the second optical fiber through the first connecting mechanism and the second connecting mechanism. The first connecting mechanism and the second connecting mechanism have the same structure.

7. The self-locking structure of a quick-detachable fiber optic connector according to claim 6, characterized in that: The first connecting mechanism includes a tailstock sleeve, and a second tight-fitting ring is provided on the inner side of the tailstock sleeve. The second tight-fitting ring of the first connecting mechanism is connected to the first tight-fitting ring, and the second tight-fitting ring of the second connecting mechanism is connected to the third tight-fitting ring.

8. The self-locking structure of a quick-detachable fiber optic connector according to claim 7, characterized in that: A miniature pressure sensor is installed in the second chute, and the miniature pressure sensor is connected to the early warning device.

9. A method for manufacturing a quick-detachable self-locking structure for an optical fiber connector as described in any one of claims 1-8, characterized in that: Specifically, the following steps are included: S1. Parts preparation: The first snap-fit ​​sleeve, the second snap-fit ​​sleeve, the movable snap-fit ​​assembly, and the tailstock sleeve are prepared by precision injection molding of high-temperature engineering plastics; the first insert and the second insert are prepared by precision grinding and polishing of zirconia ceramics; the first tight-fitting ring, the second tight-fitting ring, and the third tight-fitting ring are prepared by stainless steel. S2. Component Assembly: The first ferrule and the first tight-fitting ring are press-fitted with the first snap-fit ​​sleeve, and the second ferrule and the third tight-fitting ring are press-fitted with the second snap-fit ​​sleeve. The movable snap-fit ​​assembly is fitted onto the first tight-fitting ring. Then, the first optical fiber is passed through the second tight-fitting ring, the first tight-fitting ring, and the first ferrule. The second optical fiber is passed through the second tight-fitting ring, the third tight-fitting ring, and the second ferrule. The first tight-fitting ring and the second tight-fitting ring, as well as the third tight-fitting ring and the second tight-fitting ring, are crimped together using crimping pliers. The second tight-fitting ring is press-fitted with the tailstock sleeve. Then, the first locking mechanism is inserted into the second locking mechanism along the first groove on the second snap-fit ​​sleeve. The first snap-fit ​​sleeve is rotated so that the rotating block is inserted into the second groove and engages with the fixed block. At this time, the rotating block contacts the miniature pressure sensor.

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