An optical fiber cutting device for underwater use

Abstract

The present application belongs to the technical field of submersible, particularly relates to a kind of underwater optical fiber cutting device. Including installation support and setting on the cutting mechanism, clamping mechanism and pull pin mechanism of installation support, wherein installation support is connected with underwater equipment main body;Cutting mechanism is used to realize the cutting of underwater equipment transmission data optical fiber;Clamping mechanism is used to clamp optical fiber and ensure that optical fiber has sustained pressure relative to cutting mechanism;Pull pin mechanism is used to trigger the clamping state and reset of clamping mechanism. The present application can quickly cut off Kevlar optical fiber once completely, while taking into account cutting off other types of optical fiber;Good universality, can be applied to various devices, simple and convenient to maintain and has high reliability, is convenient for daily maintenance.

Description

Technical Field

[0001] This invention belongs to the field of submersible technology, and specifically relates to an underwater fiber optic cutting device. Background Technology

[0002] With the advancement of technology over the past few decades, fiber optic technology has become one of the key technologies for modern communication data transmission. Fiber optic technology features high bandwidth, low loss, interference resistance, and privacy, making it widely used in many fields such as communications, industry, and medicine. Similarly, it is also used in the field of submersibles.

[0003] In the field of submersibles, optical fiber is often used as a data transmission medium due to its properties. It can transmit underwater video and sensor data back to the control center in real time, and can also transmit control commands to the submersible in real time. During the submersible recovery phase, the optical fiber is usually cut first. The purpose is to prevent the optical fiber from becoming entangled with the submersible during recovery, and also to reduce the amount of optical fiber released, thereby reducing operating costs.

[0004] Submersibles use various types of optical fibers, commonly including microfibers and Kevlar fibers. Kevlar fibers are coated with Kevlar material. Kevlar material is composed of fibers, and traditional cutting methods make it extremely difficult to completely cut Kevlar fibers in one go, often resulting in tangled strands. How to completely sever Kevlar fibers is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] To address the aforementioned problems, the present invention aims to provide an underwater optical fiber cutting device that can quickly and completely cut Kevlar optical fibers in one go, while also cutting other types of optical fibers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This invention provides an underwater fiber optic cutting device, comprising:

[0008] Mounting brackets are used to connect the underwater equipment to the main body.

[0009] The cutting mechanism, mounted on the mounting bracket, is used to cut the optical fiber used for data transmission in underwater equipment.

[0010] The clamping mechanism, mounted on the mounting bracket, is used to clamp the optical fiber and ensure that the optical fiber has continuous pressure relative to the cutting mechanism;

[0011] The pin-pulling mechanism, mounted on the mounting bracket, is used to trigger the clamping state and reset of the clamping mechanism.

[0012] The cutting mechanism includes a watertight rotary motor I, a cutting shaft, and a cutting blade. The watertight rotary motor I is mounted on the mounting bracket, and its output shaft is connected to the cutting blade via the cutting shaft. The cutting blade has a circular structure, and its edge portion is accommodated in a cutting hole on the cutting bracket. The watertight rotary motor I is used to drive the cutting blade to rotate and cut.

[0013] The clamping mechanism includes a spring bracket, a cutting bracket, an external clamping assembly, and an internal clamping assembly. The spring bracket and the cutting bracket are arranged parallel to each other on the mounting bracket. The external clamping assembly and the internal clamping assembly are both arranged between the cutting bracket and the spring bracket, and the internal clamping assembly is located inside the external clamping assembly.

[0014] The external clamping assembly includes a spring I, a limiting slider, and an outer sliding rod. The outer sliding rod is connected between the cutting bracket and the spring bracket. The limiting slider slides in cooperation with the outer sliding rod. The spring I is sleeved on the outer sliding rod, and its two ends abut against the spring bracket and the limiting slider, respectively. The limiting slider has a guide groove on its side facing the cutting bracket. When the limiting slider is in contact with the cutting bracket, the optical fiber is confined within the guide groove.

[0015] The limiting slider has a square frame structure and is slidably connected to the cutting bracket via a guide rod.

[0016] The internal clamping assembly includes spring II, a pressing slider and an inner slide rod, wherein the inner slide rod is connected between the cutting bracket and the spring bracket and is parallel to the outer slide rod, the pressing slider is slidably engaged with the inner slide rod, and spring II is sleeved on the inner slide rod, with both ends abutting against the spring bracket and the pressing slider respectively;

[0017] Spring II is under pressure, and the function of the pressing slider is to continuously provide pressure to the cut optical fiber.

[0018] There are four inner slide rods and four outer slide rods. The four inner slide rods are respectively connected to the four corners of the pressing slider; the four outer slide rods are respectively connected to the four corners of the limiting slider.

[0019] The pin-pulling mechanism includes a watertight rotary motor II, a steel wire rope I, a pin-pulling shaft, a rope puller, and a pin. The watertight rotary motor II is mounted on the mounting bracket, and its output end is connected to the rope puller via the pin-pulling shaft. One end of the steel wire rope I is connected to the rope puller, and the other end of the steel wire rope I is connected to the pin. The pin is used to connect the clamping slider, the limiting slider, and the spring bracket.

[0020] One end of the wire rope II is connected to the pull pin shaft, and the other end of the wire rope II is connected to the limiting slider after passing through the guide hole on the spring bracket.

[0021] The pressing slider, the limiting slider, and the spring bracket are all provided with pin holes that are coaxial in the initial state, and the pin holes are used to insert the pins.

[0022] The advantages and beneficial effects of this invention are as follows:

[0023] This invention has good versatility. It is based on rotary cutting, rather than traditional elastic cutting. The advantage of rotary cutting is that it can cut continuously until the optical fiber is completely severed; while traditional elastic cutting relies on spring energy storage for a single, ejective cut, which cannot completely sever some fiber cladding materials in one go, and is only suitable for certain fiber types. This invention, however, can be used to cut various types of optical fibers, including microfibers, thus possessing good versatility.

[0024] This invention has a wide range of applications. All components of this invention are waterproof and pressure-resistant, enabling safe use in underwater equipment at various depths. Simultaneously, this invention can also be applied to land-based equipment.

[0025] The maintenance of this invention is simple and convenient. All components in this invention are reusable and do not require frequent replacement. Traditional spring cutting relies on the blade impacting a baffle for cutting, which causes severe wear on the blade and therefore requires frequent replacement. This invention uses rotary cutting, resulting in less blade wear and a longer replacement cycle. This means that when using the equipment of this invention, users can reduce the frequency and cost of maintenance and improve work efficiency.

[0026] This invention has high reliability. Its mechanical structure is simple and its implementation is straightforward, thus ensuring high reliability and eliminating the need for frequent maintenance. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the preparation stage of an underwater optical fiber cutting device according to the present invention.

[0028] Figure 2 This is a front view of an underwater fiber optic cutting device according to the present invention;

[0029] Figure 3 for Figure 2 The right view;

[0030] Figure 4 for Figure 2 The left view;

[0031] Figure 5 This is a schematic diagram of the clamping mechanism and the cutting mechanism during the cutting stage of the present invention;

[0032] Figure 6 for Figure 5 sectional view

[0033] Wherein: 1 is the mounting bracket, 2 is steel wire rope II, 3 is steel wire rope I, 4 is the spring bracket, 5 is spring II, 6 is spring I, 7 is the limit slider, 8 is the optical fiber, 9 is the watertight rotary motor I, 10 is the cutting shaft, 11 is the cutting blade, 12 is the cutting bracket, 13 is the outer slide rod, 14 is the watertight rotary motor II, 15 is the pull pin shaft, 16 is the rope puller, 17 is the pin, 18 is the clamping slider, and 19 is the inner slide rod. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1-4 As shown, the present invention provides an underwater optical fiber cutting device, including a mounting bracket 1 and a cutting mechanism, a clamping mechanism and a pin pulling mechanism disposed on the mounting bracket 1, wherein the mounting bracket 1 is connected to the underwater equipment body; the cutting mechanism is used to cut the optical fiber 8 used for data transmission of the underwater equipment; the clamping mechanism is used to clamp the optical fiber 8 and ensure that the optical fiber 8 has continuous pressure relative to the cutting mechanism; the pin pulling mechanism is used to trigger the clamping state of the clamping mechanism and reset it.

[0036] like Figure 2 As shown, in an embodiment of the present invention, the cutting mechanism includes a watertight rotary motor I9, a cutting shaft 10, and a cutting blade 11. The watertight rotary motor I9 is ​​mounted on the mounting bracket 1, and its output shaft is connected to the cutting blade 11 via the cutting shaft 10. The cutting blade 11 has a circular structure, and its edge portion is accommodated in the cutting hole on the cutting bracket 12. The watertight rotary motor I9 is ​​used to drive the cutting blade 11 to rotate and cut.

[0037] like Figure 2 As shown, in an embodiment of the present invention, the clamping mechanism includes a spring bracket 4, a cutting bracket 12, an external clamping assembly, and an internal clamping assembly. The spring bracket 4 and the cutting bracket 12 are arranged parallel to each other on the mounting bracket 1. The external clamping assembly and the internal clamping assembly are both arranged between the cutting bracket 12 and the spring bracket 4, and the internal clamping assembly is located inside the external clamping assembly.

[0038] In embodiments of the present invention, the external clamping assembly includes a spring I6, a limiting slider 7, and an outer sliding rod 13. The outer sliding rod 13 is connected between the cutting bracket 12 and the spring bracket 4. The limiting slider 7 is slidably engaged with the outer sliding rod 13. The spring I6 is sleeved on the outer sliding rod 13, and its two ends abut against the spring bracket 4 and the limiting slider 7, respectively. The limiting slider 7 has a guide groove on the side facing the cutting bracket 12. The function of the guide groove is to restrict the optical fiber 8 within a specified range and fix the optical fiber 8 at a specified position during cutting, thereby restricting the movement of the optical fiber 8.

[0039] Furthermore, the limiting slider 7 has a square frame structure, and its four corners are slidably connected to the cutting bracket 12 through four guide rods. Under the limiting of the limiting slider 7 by the pin pulling mechanism, the spring I6 is always in a compressed state.

[0040] like Figure 2 As shown in the embodiment of the present invention, the internal clamping assembly includes a spring II 5, a pressing slider 18, and an inner slide rod 19. The inner slide rod 19 is connected between the cutting bracket 12 and the spring bracket 4, and is parallel to the outer slide rod 13. The pressing slider 18 is slidably engaged with the inner slide rod 19. The spring II 5 is sleeved on the inner slide rod 19, and its two ends abut against the spring bracket 4 and the pressing slider 18, respectively. The pressing slider 18 is limited by the pin pulling mechanism, which keeps the spring II 5 in a pressed state. The function of the pressing slider 18 is to continuously provide pressure to the optical fiber 8 being cut, ensuring that the optical fiber 8 adheres to the cutting blade 11, so that the cutting can proceed smoothly.

[0041] Furthermore, there are four inner slide rods 19 and four outer slide rods 13. The four inner slide rods 19 are respectively connected to the four corners of the pressing slider 18, and the pressing slider 18 is provided with a clearance groove that allows the cutting blade 11 to pass through. The four outer slide rods 13 are respectively connected to the four corners of the limiting slider 7.

[0042] like Figure 2-3 As shown, in an embodiment of the present invention, the pin-pulling mechanism includes a watertight rotary motor II 14, steel wire rope I 3, steel wire rope II 2, a pin-pulling shaft 15, a rope puller 16, and a pin 17. The watertight rotary motor II 14 is mounted on the mounting bracket 1, and its output end is connected to the rope puller 16 via the pin-pulling shaft 15. One end of steel wire rope I 3 is connected to the rope puller 16, and the other end is connected to the pin 17. The pin 17 connects to the clamping slider 18, the limiting slider 7, and the spring bracket 4. Steel wire rope I 3 is taut, so that the pin 17 can be easily pulled out when the rope puller 16 rotates. One end of steel wire rope II 2 is connected to the pin-pulling shaft 15, and the other end of steel wire rope II 2 passes through a guide hole on the spring bracket 4 and connects to the limiting slider 7. Steel wire rope II 2 is not taut and has some slack, so that after the optical fiber 8 is cut, the limiting slider 7 is pulled by steel wire rope II 2, causing the optical fiber 8 to detach from the fixing of the limiting slider 7.

[0043] Furthermore, the pressing slider 18, the limiting slider 7, and the spring bracket 4 are all provided with pin holes that are coaxial in the initial state and allow the pin 17 to pass through, facilitating the insertion of the pin 17. One end of the pin-pulling shaft 15 is connected to the watertight rotary motor II 14, and the other end is connected to the rope puller 16. Its main function is to transmit rotational motion, with two purposes: first, to pull out the pin 17, and second, to pull the limiting slider 7 by winding the steel wire rope II 2. The watertight rotary motor II 14 provides the power source for pulling the pin and pulling the limiting slider 7.

[0044] The working principle of the underwater fiber optic cutting device provided by this invention is as follows:

[0045] During the preparation phase, place the rope puller 16 to... Figure 4 At the indicated position, wire rope II2 is in a relaxed, unwound state with ample slack. Pulling the clamping slider 18 and the limiting slider 7 compresses spring II5 and spring I6 respectively, making the pin holes of the spring bracket 4, the limiting slider 7, and the clamping slider 18 concentric, and inserting the pin 17. At this time, the optical fiber 18 passes through the guide groove of the limiting slider 7 and is located between the limiting slider 7 and the cutting bracket 12.

[0046] During the cutting stage, such as Figure 5 and Figure 6 As shown, the watertight rotary motor II 14 rotates and stops after the pin 17 is pulled out. The limiting slider 7 and the clamping slider 18 are released one after the other. The limiting slider 7 first fixes the optical fiber 8 in the designated position, and then the clamping slider 18 continues to squeeze the optical fiber 8, so that there is continuous pressure between the optical fiber 8 and the cutting blade 11. The watertight rotary motor I 9 is then started to drive the cutting blade 11 to cut, and the optical fiber 8 is cut. After being cut, the two segments of the optical fiber 8 are pressed onto the cutting bracket 12 by the limiting slider 7 and the clamping slider 18.

[0047] During the release phase, the watertight rotary motor II14 continues to rotate, pulling the limit slider 7 and the clamping slider 18 via the steel wire rope II2, thus releasing the cut optical fiber 8. This completes the entire operation.

[0048] In summary, this invention provides an underwater fiber optic cleaving device that uses rotary cleaving instead of the traditional elastic cleaving method, and can be used to cleave various types of optical fibers, including Kevlar fibers. Furthermore, it boasts excellent versatility, can be applied to various devices, is simple and convenient to maintain, and exhibits high reliability, facilitating routine maintenance.

[0049] The above description is merely an embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, extensions, etc., made within the spirit and principles of the present invention are included within the scope of protection of the present invention.

Claims

1. An underwater fiber optic cutting device, characterized in that, include: Mounting bracket (1) is connected to the main body of the underwater equipment; The cutting mechanism is mounted on the mounting bracket (1) and is used to cut the optical fiber (8) used for transmitting data to underwater equipment. A clamping mechanism is provided on the mounting bracket (1) for clamping the optical fiber (8) and ensuring that the optical fiber (8) has continuous pressure relative to the cutting mechanism; The pin-pulling mechanism is mounted on the mounting bracket (1) and is used to trigger the clamping state and reset of the clamping mechanism; The clamping mechanism includes a spring bracket (4), a cutting bracket (12), an external clamping assembly, and an internal clamping assembly. The spring bracket (4) and the cutting bracket (12) are arranged parallel to each other on the mounting bracket (1). The external clamping assembly and the internal clamping assembly are both arranged between the cutting bracket (12) and the spring bracket (4), and the internal clamping assembly is located inside the external clamping assembly. The external clamping assembly includes a spring I (6), a limiting slider (7), and an outer slide rod (13). The outer slide rod (13) is connected between the cutting bracket (12) and the spring bracket (4). The limiting slider (7) is slidably engaged with the outer slide rod (13). The spring I (6) is sleeved on the outer slide rod (13), and its two ends abut against the spring bracket (4) and the limiting slider (7) respectively. The limiting slider (7) has a guide groove on the side facing the cutting bracket (12). When the limiting slider (7) is in contact with the cutting bracket (12), the optical fiber (8) is confined within the guide groove. The internal clamping assembly includes a spring II (5), a pressing slider (18), and an inner slide rod (19). The inner slide rod (19) is connected between the cutting bracket (12) and the spring bracket (4) and is parallel to the outer slide rod (13). The pressing slider (18) is slidably engaged with the inner slide rod (19). The spring II (5) is sleeved on the inner slide rod (19) and its two ends abut against the spring bracket (4) and the pressing slider (18) respectively. The pressing slider (18) is used to continuously provide pressure to the optical fiber (8) being cut. The pin-pulling mechanism includes a watertight rotary motor II (14), wire rope I (3), wire rope II (2), a pin-pulling shaft (15), a rope puller (16), and a pin (17). The watertight rotary motor II (14) is mounted on the mounting bracket (1), and its output end is connected to the rope puller (16) through the pin-pulling shaft (15). One end of the wire rope I (3) is connected to the rope puller (16), and the other end of the wire rope I (3) is connected to the pin (17). The pin (17) is used to connect the pressing slider (18), the limiting slider (7), and the spring bracket (4). One end of the wire rope II (2) is connected to the pin-pulling shaft (15), and the other end of the wire rope II (2) is connected to the limiting slider (7) after passing through the guide hole on the spring bracket (4). The pressing slider (18), the limiting slider (7) and the spring bracket (4) are all provided with pin holes that are coaxial in the initial state, and the pin holes are used to insert the pin (17).

2. The underwater fiber optic cutting device according to claim 1, characterized in that, The cutting mechanism includes a watertight rotary motor I (9), a cutting shaft (10), and a cutting blade (11). The watertight rotary motor I (9) is mounted on the mounting bracket (1), and its output shaft is connected to the cutting blade (11) through the cutting shaft (10). The cutting blade (11) has a circular structure, and the watertight rotary motor I (9) is used to drive the cutting blade (11) to rotate for cutting.

3. The underwater fiber optic cutting device according to claim 1, characterized in that, The limiting slider (7) has a square frame structure and is slidably connected to the cutting bracket (12) through a guide rod.

4. The underwater fiber optic cutting device according to claim 1, characterized in that, There are four inner slide rods (19) and four outer slide rods (13). The four inner slide rods (19) are respectively connected to the four corners of the pressing slider (18); the four outer slide rods (13) are respectively connected to the four corners of the limiting slider (7).

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