Anti-loose fiber optic connector

Abstract

The application relates to the technical field of optical fiber connectors, and discloses an anti-loosening optical fiber connector which comprises a connector main body, a transmitting end fixedly connected to the side surface of the connector main body, a connecting block fixedly connected to the side surface of the connector main body away from the transmitting end, a clamping mechanism fixedly connected to the side surface of the connecting block away from the connector main body, a protective sleeve fixedly connected to the side surface of the clamping mechanism away from the connector main body, a self-locking mechanism movably connected to one side of the protective sleeve close to the clamping mechanism, and a detection mechanism movably connected to the other side of the protective sleeve away from the clamping mechanism. The optical fiber cable is placed in the limiting block and the lower half screw rod, the upper half screw rod and the lower half screw rod are in contact with each other, the optical fiber cable is fixed between the upper half screw rod and the lower half screw rod, finally the threaded sleeve is turned into the outside of the upper half screw rod and the lower half screw rod, the upper half screw rod and the lower half screw rod are fixed, the position of the optical fiber cable is fixed, and the installation is more firm.

Description

Technical Field

[0001] This invention relates to the field of fiber optic connector technology, and more specifically to an anti-loosening fiber optic connector. Background Technology

[0002] Fiber optic connectors are devices that detachably connect optical fibers. They precisely align the two end faces of the fibers to maximize the coupling of light energy from the transmitting fiber to the receiving fiber and minimize the impact on the system caused by their connection to the optical link. These are the basic requirements of fiber optic connectors. To a certain extent, fiber optic connectors affect the reliability and performance of optical transmission systems.

[0003] Fiber optic connectors can be divided into common silicon-based fiber optic single-mode and multimode connectors according to the different transmission media. The main purpose of fiber optic connectors is to realize the splicing of optical fibers. They are widely used in fiber optic communication systems. There are many types and different structures. Most fiber optic connectors generally use high-precision components to realize the alignment and connection of optical fibers. Optical performance directly affects the working performance of fiber optic connectors. In addition, the interchangeability, repeatability, tensile strength, temperature and mating / removal cycles of fiber optic connectors must also be considered.

[0004] When using fiber optic connectors, it is necessary to fix the fiber optic cable. Currently, the fiber optic cable is usually fixed by a clip. However, this method has limited effectiveness and cannot firmly fix the fiber optic cable when connecting it to the fiber optic connector, which will affect the performance of the fiber optic cable inside the connector.

[0005] When a fiber optic connector is in use, the fiber optic cable will move inside the connector when it comes into contact with the outside world. Since the fiber optic cable does not transmit electricity, it is impossible to use an electrically driven clamping device to automatically fix it when it moves. Furthermore, current fiber optic connectors cannot automatically adjust the clamping force according to the amplitude of the movement. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide an anti-loosening fiber optic connector to solve the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an anti-loosening fiber optic connector, comprising a connector body, a transmitter fixedly connected to the side of the connector body, a connecting block fixedly connected to the side of the connector body away from the transmitter, a clamping mechanism fixedly connected to the side of the connecting block away from the connector body, a protective sleeve fixedly connected to the side of the clamping mechanism away from the connector body, a self-locking mechanism movably connected to the side of the protective sleeve near the clamping mechanism, and a detection mechanism movably connected to the side of the protective sleeve away from the clamping mechanism; fiber optic cables are movably connected to the connector body, the clamping mechanism, and the protective sleeve; the clamping mechanism includes a placement box fixedly connected to the connecting block, a limit block fixedly connected to the bottom of the placement box, a lower half-screw fixedly connected to the side of the placement box away from the connecting block, an upper half-screw provided at the top of the lower half-screw, the outer threads of the lower half-screw and the upper half-screw being adapted to each other, and a threaded sleeve threadedly connected to the side of the lower half-screw and the upper half-screw.

[0008] In a preferred embodiment, the protective sleeve has a recessed groove, the self-locking mechanism is located in the recessed groove, and the optical fiber cable is located in the self-locking mechanism. The protective sleeve also has a stepped groove, and the detection mechanism is located in the stepped groove.

[0009] In a preferred embodiment, the protective sleeve is made of an elastic material and deforms as the optical fiber cable moves. There are four detection mechanisms, which are distributed at equal angles within the protective sleeve, and the optical fiber cable is located at the center of the four detection mechanisms.

[0010] In a preferred embodiment, a pressure plate is fixedly connected to the side of the upper screw away from the threaded sleeve, and a fixed shaft is movably connected to the inside of the pressure plate away from the upper screw. The two sides of the fixed shaft are fixedly connected to the inside of the placement box.

[0011] In a preferred embodiment, the detection mechanism includes a support block that contacts the optical fiber cable. A pressure block is fixedly connected to the side of the support block, and a support spring is movably connected to the side of the support block near the pressure block. A limit cylinder is movably connected inside the support spring, and a piezoelectric ceramic is fixedly connected inside the limit cylinder. The pressure block and the piezoelectric ceramic are located on the same axis.

[0012] In a preferred embodiment, the pressure block is located inside the limiting cylinder, the two sides of the support spring are in contact with the stepped groove and the support block respectively, and the pressure block is always located inside the limiting cylinder when the pressure block moves. The two sides of the support block are fixedly connected with sliders, and the sliders slide in the grooves opened on both sides inside the stepped groove.

[0013] In a preferred embodiment, the self-locking mechanism includes an electromagnet that receives current. The electromagnets have two currents, which are mirror-symmetrical about the center of the protective sleeve. The bottom end of the electromagnet is fixedly connected to the interior of the clearance groove. Magnetic plates are provided on the sides of the two electromagnets that are far apart from each other, and elastic balls are provided on the sides of the magnetic plates that are far apart from the electromagnets.

[0014] In a preferred embodiment, connecting plates are fixedly connected to both sides of the top of the magnetic plate, and fixing blocks are fixedly connected to the inner sides of the top of the two connecting plates. A locking arc plate is fixedly connected to the side of the fixing block near the electromagnet. A lever shaft is movably connected inside the connecting plate. The two sides of the lever shaft are fixedly connected to the inside of the clearance groove. The optical fiber cable is located inside the locking arc plate.

[0015] The technical effects and advantages of this invention are as follows:

[0016] 1. This invention comprises a lower screw, an upper screw, and a threaded sleeve. The optical fiber cable is placed in the limiting block and the lower screw, causing the pressure plate and the upper screw to rotate around the fixed axis. This causes the upper screw and the lower screw to come into contact with each other, fixing the optical fiber cable between the upper screw and the lower screw. Finally, the threaded sleeve rotates into the outside of the upper screw and the lower screw, fixing the upper screw and the lower screw and fixing the position of the optical fiber cable, making its installation more secure.

[0017] 2. When the optical fiber cable of the present invention is subjected to force and shakes, the shaking optical fiber cable will cause the protective sleeve to deform, and the shaking optical fiber cable will cause the support block to drive the pressure block to move towards the piezoelectric ceramic, thereby causing the piezoelectric ceramic to generate current under impact. The generated current is used by the self-locking mechanism to automatically clamp the optical fiber cable. The greater the shaking of the optical fiber cable, the greater the clamping force, ensuring that the optical fiber cable will not fall off, and can automatically generate current, which will increase with the increase of impact force.

[0018] 3. When the piezoelectric ceramic of the present invention generates current after impact, the generated current flows into the electromagnet. After the current is passed through the electromagnet, a magnetic repulsion force is generated between it and the magnetic plate. Under the action of the magnetic repulsion force, the magnetic plate rotates around the lever axis and moves away from the electromagnet. At this time, the connecting plate drives the fixing block and the locking arc plate to move towards the middle, thereby causing the two locking arc plates to move towards the middle synchronously, clamping the optical fiber cable and preventing the optical fiber cable from falling off when it shakes or is subjected to external force. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the overall exploded structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the overall structure of the clamping mechanism of the present invention.

[0022] Figure 4 This is an exploded view of the clamping mechanism of the present invention.

[0023] Figure 5 This is a schematic diagram of the internal structure of the protective sleeve of the present invention.

[0024] Figure 6 This is a schematic diagram showing the exploded internal structure of the protective sleeve of the present invention.

[0025] Figure 7 This is a schematic diagram of the detection mechanism of the present invention within the protective sleeve.

[0026] Figure 8 This is an exploded structural diagram of the detection mechanism of the present invention.

[0027] Figure 9 This is an exploded structural diagram of the self-locking mechanism of the present invention.

[0028] The attached figures are labeled as follows: 1. Connector body; 2. Transmitter end; 3. Connecting block; 4. Clamping mechanism; 401. Placement box; 402. Limiting block; 403. Lower half screw; 404. Fixed shaft; 405. Pressure plate; 406. Upper half screw; 407. Threaded sleeve; 5. Protective sleeve; 501. Stepped groove; 502. Alternating groove; 6. Fiber optic cable; 7. Detection mechanism; 701. Support block; 702. Pressure block; 703. Piezoelectric ceramic; 704. Limiting cylinder; 705. Support spring; 706. Slider; 8. Self-locking mechanism; 801. Electromagnet; 802. Magnetic plate; 803. Connecting plate; 804. Fixed block; 805. Locking arc plate; 806. Lever shaft; 807. Elastic ball. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The anti-loosening fiber optic connector involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Reference Figure 1 , Figure 2 as well as Figure 5 and Figure 6This invention provides an anti-loosening fiber optic connector, comprising a connector body 1, a transmitter 2 fixedly connected to the side of the connector body 1, a connecting block 3 fixedly connected to the side of the connector body 1 away from the transmitter 2, a clamping mechanism 4 fixedly connected to the side of the connecting block 3 away from the connector body 1, a protective sleeve 5 fixedly connected to the side of the clamping mechanism 4 away from the connector body 1, a self-locking mechanism 8 movably connected to the side of the protective sleeve 5 near the clamping mechanism 4, and a detection mechanism 7 movably connected to the side of the protective sleeve 5 away from the clamping mechanism 4. Optical fiber cables 6 are movably connected to both the clamping mechanism 4 and the protective sleeve 5. A clearance groove 502 is provided inside the protective sleeve 5, and a self-locking mechanism 8 is located inside the clearance groove 502. The optical fiber cable 6 is located inside the self-locking mechanism 8. A stepped groove 501 is provided inside the protective sleeve 5, and a detection mechanism 7 is located inside the stepped groove 501. The protective sleeve 5 is made of elastic material, and the protective sleeve 5 deforms when the optical fiber cable 6 moves. There are four detection mechanisms 7, which are distributed at equal angles inside the protective sleeve 5, and the optical fiber cable 6 is located at the center of the four detection mechanisms 7.

[0031] In this embodiment, the self-locking mechanism 8 is fixed in the clearance groove 502, which provides space for the self-locking mechanism 8 to perform clamping movements, ensuring the clamping effect of the self-locking mechanism 8. There are four detection mechanisms 7, with the optical fiber cable 6 located in the middle of the four detection mechanisms 7. Therefore, when the optical fiber cable 6 moves arbitrarily, the detection mechanisms 7 can operate, thereby ensuring the timeliness of the current generated by the detection mechanisms 7, and thus ensuring the accuracy of the clamping and fixing of the self-locking mechanism 8.

[0032] Reference Figure 2 , Figure 3 and Figure 4 The clamping mechanism 4 includes a placement box 401 fixedly connected to the connecting block 3. A limit block 402 is fixedly connected to the bottom of the placement box 401. A lower half screw 403 is fixedly connected to the side of the placement box 401 away from the connecting block 3. An upper half screw 406 is provided at the top of the lower half screw 403. The outer threads of the lower half screw 403 and the upper half screw 406 are adapted to each other. A threaded sleeve 407 is threadedly connected to the side of the lower half screw 403 and the upper half screw 406. A pressure plate 405 is fixedly connected to the side of the upper half screw 406 away from the threaded sleeve 407. A fixed shaft 404 is movably connected to the inside of the pressure plate 405 away from the upper half screw 406. The two sides of the fixed shaft 404 are fixedly connected to the inside of the placement box 401.

[0033] In this embodiment, the limiting block 402, the pressure plate 405, the lower screw 403, and the upper screw 406 all have arc-shaped grooves adapted to the optical fiber cable 6. Therefore, the optical fiber cable 6 can be placed in the arc-shaped grooves of the limiting block 402 and the lower screw 403. After placement, the upper screw 406 and the lower screw 403 come into contact, thereby fixing the position of the optical fiber cable 6. The outer threads of the lower screw 403 and the upper screw 406 are adapted to each other, so the inside of the threaded sleeve 407 can be connected to the threads on the sides of the lower screw 403 and the upper screw 406, thereby fixing the position of the lower screw 403 and the upper screw 406, and clamping the optical fiber cable 6 inside them.

[0034] Reference Figure 6 , Figure 7 as well as Figure 8 The detection mechanism 7 includes a support block 701 that contacts the optical fiber cable 6. A pressure block 702 is fixedly connected to the side of the support block 701. A support spring 705 is movably connected to the side of the support block 701 near the pressure block 702. A limiting cylinder 704 is movably connected inside the support spring 705. A piezoelectric ceramic 703 is fixedly connected inside the limiting cylinder 704. The pressure block 702 and the piezoelectric ceramic 703 are on the same axis, and the pressure block 702 is located inside the limiting cylinder 704. The two sides of the support spring 705 are in contact with the stepped groove 501 and the support block 701, respectively. When the pressure block 702 moves, the pressure block 702 is always located inside the limiting cylinder 704. A slider 706 is fixedly connected to the two sides of the support block 701. The slider 706 slides in the grooves opened on both sides inside the stepped groove 501.

[0035] In this embodiment, when the fiber optic cable 6 shakes under external force, the protective sleeve 5 deforms as a whole. When the protective sleeve 5 deforms, the support block 701 moves the pressure block 702 closer to the piezoelectric ceramic 703 and compresses the support spring 705. The compressed support spring 705 allows the support block 701 to reset. The piezoelectric ceramic 703 has a limiting cylinder 704 on its side. At this time, the limiting cylinder 704 can separate the support spring 705 from the piezoelectric ceramic 703, preventing the support spring 705 from contacting the piezoelectric ceramic 703 and thus avoiding loss of power generation. Furthermore, the limiting cylinder 704 can provide support... Spring 705 is used for limiting to prevent radial displacement and damage after the support spring 705 is compressed several times. Slider 706 can limit the movement of support block 701 to prevent support block 701 from falling into the protective sleeve 5. When pressure block 702 contacts and impacts piezoelectric ceramic 703, the impacted piezoelectric ceramic 703 will generate current, and the current generated by piezoelectric ceramic 703 will flow into electromagnet 801 in self-locking mechanism 8. This application can automatically generate current. This application is not affected by the external environment when in use, and the piezoelectric ceramic 703 generates current quickly enough to improve the response speed during clamping.

[0036] Reference Figure 6 and Figure 9 The self-locking mechanism 8 includes an electromagnet 801 that receives current. The electromagnet 801 has two currents and is mirror-symmetrical with respect to the center of the protective sleeve 5. The bottom end of the electromagnet 801 is fixedly connected to the inside of the clearance groove 502. Magnetic plates 802 are provided on the sides of the two electromagnets 801 that are far apart from each other. Elastic balls 807 are provided on the sides of the magnetic plates 802 that are far away from the electromagnets 801. Connecting plates 803 are fixedly connected to both sides of the top of the magnetic plates 802. Fixing blocks 804 are fixedly connected to the inner sides of the top of the two connecting plates 803. Locking arc plates 805 are fixedly connected to the sides of the fixing blocks 804 that are close to the electromagnets 801. A lever shaft 806 is movably connected inside the connecting plates 803. The two sides of the lever shaft 806 are fixedly connected to the inside of the clearance groove 502. The fiber optic cable 6 is located inside the locking arc plate 805.

[0037] In this embodiment, the electromagnet 801, through which current is applied, generates magnetic force, and there is magnetic repulsion between the electromagnet 801 and the magnetic plate 802. This causes the magnetic plate 802 to move away from the electromagnet 801. As the magnetic plate 802 moves away from the electromagnet 801, it compresses the elastic ball 807, causing the elastic ball 807 to deform. Therefore, when clamping is not required, the deformed elastic ball 807 will recover, thereby resetting the locking arc plate 805. This prevents the optical fiber cable 6 from being damaged by prolonged compression. Furthermore, when the magnetic plate 802 moves, it drives the connecting plate 803 and the fixing block 804 to rotate around the lever axis 806. When the fixing block 804 rotates around the lever axis 806, it drives the locking arc plate 805 to move. At this time, the two locking arc plates 805 move inward synchronously, thereby clamping the optical fiber cable 6 within the two locking arc plates 805.

[0038] The working principle of this invention is as follows: When installing the optical fiber cable 6, the optical fiber cable 6 is passed through the threaded sleeve 407 and the protective sleeve 5. At this time, the optical fiber cable 6 will be located between the detection mechanism 7 and the self-locking mechanism 8 inside the protective sleeve 5. After processing the optical fiber cable 6, the optical fiber core inside the optical fiber cable 6 is placed in the appropriate position inside the connector body 1. The part of the optical fiber cable 6 with the coating layer is located inside the limiting block 402 and the lower screw 403. The pressure plate 405 is rotated so that the pressure plate 405 rotates downward around the fixed shaft 404 and contacts the limiting block 402. The upper screw 406 contacts the lower screw 403. Therefore, the pressure plate 405 and the limiting block 402 and the lower screw 403 will clamp and fix the optical fiber cable 6. Then, the threaded sleeve 407 is wrapped around the side of the lower screw 403 and the upper screw 406 to fix the lower screw 403 and the upper screw 406.

[0039] After the threaded sleeve 407 fixes the lower half screw 403 and the upper half screw 406, the protective sleeve 5 on the side of the threaded sleeve 407 protects the part of the optical fiber cable 6 away from the clamping mechanism 4. At this time, when the optical fiber cable 6 shakes under the action of external force, the protective sleeve 5 deforms as a whole under the action of external force. When the protective sleeve 5 deforms, the support block 701 will drive the pressure block 702 to move closer to the piezoelectric ceramic 703 and compress the support spring 705. When the pressure block 702 contacts the piezoelectric ceramic 703 and impacts the piezoelectric ceramic 703, the impacted piezoelectric ceramic 703 will generate current, and the current generated by the piezoelectric ceramic 703 will flow into the electromagnet 801 in the self-locking mechanism 8. When the shaking of the optical fiber cable 6 disappears, the compressed support spring 705 will reset. When the support spring 705 resets, the support block 701 resets, so that the four support blocks 701 make the optical fiber cable 6 in the middle position of the protective sleeve 5.

[0040] When current is passed through electromagnet 801, the electromagnet 801 generates magnetic force, and there is magnetic repulsion between electromagnet 801 and magnetic plate 802. This causes magnetic plate 802 to move away from electromagnet 801. As magnetic plate 802 moves away from electromagnet 801, it compresses elastic ball 807, causing elastic ball 807 to deform. When magnetic plate 802 moves, it drives connecting plate 803 and fixing block 804 to rotate around lever axis 806. When fixing block 804 rotates around lever axis 806, it drives locking arc plate 805 to move. At this time, the two locking arc plates 805 move inward synchronously, thereby clamping the optical fiber cable 6 inside the two locking arc plates 805. The greater the frequency of the optical fiber cable 6 shaking, the greater the current generated by piezoelectric ceramic 703, and the greater the clamping force exerted by locking arc plate 805 on optical fiber cable 6, thus making the fixation of optical fiber cable 6 more secure.

[0041] In conclusion, the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An anti-loose fiber optic connector comprising a connector body (1), characterized in that: A transmitter (2) is fixedly connected to the side of the connector body (1). A connecting block (3) is fixedly connected to the side of the connector body (1) away from the transmitter (2). A clamping mechanism (4) is fixedly connected to the side of the connecting block (3) away from the connector body (1). A protective sleeve (5) is fixedly connected to the side of the clamping mechanism (4) away from the connector body (1). A self-locking mechanism (8) is movably connected to the side of the protective sleeve (5) near the clamping mechanism (4). A detection mechanism (7) is movably connected to the side of the protective sleeve (5) away from the clamping mechanism (4). The connector body (1) and the clamping mechanism (4) are connected in a manner that... Fiber optic cables (6) are movably connected inside the protective sleeve (5); the clamping mechanism (4) includes a placement box (401) fixedly connected to the connecting block (3), a limit block (402) is fixedly connected to the bottom of the placement box (401), a lower half screw (403) is fixedly connected to the side of the placement box (401) away from the connecting block (3), an upper half screw (406) is provided at the top of the lower half screw (403), the outer ring thread of the lower half screw (403) and the upper half screw (406) are adapted to each other, and a threaded sleeve (407) is threadedly connected to the side of the lower half screw (403) and the upper half screw (406). The protective sleeve (5) has a recessed groove (502) inside, the self-locking mechanism (8) is located in the recessed groove (502), and the optical fiber cable (6) is located in the self-locking mechanism (8). The protective sleeve (5) has a stepped groove (501) inside, and the detection mechanism (7) is located in the stepped groove (501). The detection mechanism (7) includes a support block (701) that contacts the optical fiber cable (6). A pressure block (702) is fixedly connected to the side of the support block (701). A support spring (705) is movably connected to the side of the support block (701) near the pressure block (702). A limiting cylinder (704) is movably connected inside the support spring (705). A piezoelectric ceramic (703) is fixedly connected inside the limiting cylinder (704). The pressure block (702) and the piezoelectric ceramic (703) are located on the same axis. The self-locking mechanism (8) includes an electromagnet (801) that receives current. The electromagnet (801) has two currents. The two electromagnets (801) are mirror-symmetrical with respect to the center of the protective sleeve (5). The bottom end of the electromagnet (801) is fixedly connected to the inside of the clearance groove (502). Magnetic plates (802) are provided on the sides of the two electromagnets (801) that are far apart from each other. Elastic balls (807) are provided on the sides of the magnetic plates (802) that are far away from the electromagnets (801).

2. The anti-loosening fiber optic connector according to claim 1, characterized in that: The protective sleeve (5) is made of elastic material and deforms when the optical fiber cable (6) moves. There are four detection mechanisms (7), which are distributed at equal angles inside the protective sleeve (5) and the optical fiber cable (6) is located at the center of the four detection mechanisms (7).

3. The anti-loosening fiber optic connector according to claim 1, characterized in that: A pressure plate (405) is fixedly connected to the side of the upper screw (406) away from the threaded sleeve (407). A fixed shaft (404) is movably connected inside the pressure plate (405) away from the upper screw (406). The two sides of the fixed shaft (404) are fixedly connected to the inside of the placement box (401).

4. The anti-loosening fiber optic connector according to claim 1, characterized in that: The pressure block (702) is located inside the limiting cylinder (704). The two sides of the support spring (705) are in contact with the stepped groove (501) and the support block (701) respectively. When the pressure block (702) moves, the pressure block (702) is always located inside the limiting cylinder (704). The two sides of the support block (701) are fixedly connected with sliders (706). The sliders (706) slide in the grooves opened on both sides inside the stepped groove (501).

5. The anti-loosening fiber optic connector according to claim 1, characterized in that: Connecting plates (803) are fixedly connected to both sides of the top of the magnetic plate (802). Fixing blocks (804) are fixedly connected to the inner sides of the top of the two connecting plates (803). Locking arc plates (805) are fixedly connected to the side of the fixing blocks (804) near the electromagnet (801). A lever shaft (806) is movably connected inside the connecting plate (803). The two sides of the lever shaft (806) are fixedly connected to the inside of the clearance groove (502). The optical fiber cable (6) is located inside the locking arc plate (805).

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