Low-loss polarization-maintaining system optical fiber assembly

Abstract

The utility model provides a low-loss polarization-maintaining system optical fiber assembly, which relates to the technical field of optical fibers, and comprises a storage box, the side surface of the storage box is rotatably connected with a handle, the end part of the handle is provided with a first gear, the surface of the first gear is provided with a winding drum, the surface of the winding drum is wound with an optical fiber cable, and the surface of the first gear is meshed with a second gear. A transmission assembly is arranged on the surface of the second gear, a movable groove is formed in the side face of the storage box, a placement box is arranged on the side face of the storage box, and a first optical fiber connector is arranged at the end of the optical fiber cable. The problem that the optical fiber cable is scattered and intertwined due to the fact that the optical fiber cable is too long is effectively avoided, when the length of the optical fiber cable is short, people can reversely rotate the handle to enable the optical fiber cable to be smoothly released from the winding drum and adjusted to the needed length, and adaptability and flexibility of the optical fiber assembly are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fibers, in particular to an optical fiber component of a low-loss polarization-maintaining system. Background Art

[0002] According to Chinese patent number CN206311804U, a high extinction ratio polarization-maintaining fiber assembly includes a polarization-maintaining fiber and a metal sleeve. The metal sleeve is sleeved over the exterior of the polarization-maintaining fiber. The polarization-maintaining fiber includes a core, which is divided into a gold-plated region and a non-gold-plated region. The gold-plated region serves as the insertion end of the polarization-maintaining fiber, and the exterior of the non-gold-plated region is wrapped by a cladding layer. A pair of symmetrical grooves are provided on the end surface of one end of the metal sleeve for accommodating soldering of the polarization-maintaining fiber and the metal sleeve tin sheet. The two cuts of the grooves are integrated with the gold-plated region of the core. The utility model cuts a groove at one end of the metal sleeve and heats the tin sheet in the groove to weld the polarization-maintaining fiber and the metal sleeve during welding. This can artificially change the stress difference between the fast axis and the slow axis of the optical fiber, greatly reducing the reduction in the extinction ratio after welding the metal sleeve.

[0003] The above-mentioned reference documents and prior art have the following technical problems:

[0004] 1. The existing fiber optic components are not easy to flexibly adjust the length of use according to actual conditions. The optical fibers are easily tangled and entangled due to being too long, which not only affects the appearance, but may also cause signal attenuation or maintenance difficulties. When the length is short, the optical fiber connection cannot be completed. In addition, the optical fiber components are exposed when not in use and are subject to dust, dirt, and even physical damage, which significantly shortens their service life and affects the stability and reliability of optical fiber communication. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a low-loss polarization-maintaining system optical fiber component.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a low-loss polarization-maintaining system optical fiber assembly, comprising a storage box, a handle rotatably connected to the side of the storage box, a first gear provided at the end of the handle, a winding drum provided on the surface of the first gear, an optical fiber wound on the surface of the winding drum, a second gear engaged with the surface of the first gear, a transmission assembly provided on the surface of the second gear, a movable groove provided on the side of the storage box, a placement box provided on the side of the storage box, a first optical fiber connector provided at the end of the optical fiber, and a second optical fiber connector provided at the other end of the optical fiber.

[0007] Preferably, the transmission assembly includes a transmission rod, a screw rod, a movable block, a limit rod and a fixed seat, the ends of the two transmission rods are provided with screw rods, the surface of the screw rod is provided with a movable block, the surface of the movable block is connected through the limit rod, and the surface of the movable block is provided with a fixed seat.

[0008] Preferably, a door is hinged on the surface of the placement box, and the position of the placement box corresponds to the positions of the movable groove and the second optical fiber connector respectively.

[0009] Preferably, the end of the handle passes through the side surface of the storage box and is connected to the surface of the first gear, and the end of the winding drum is rotatably connected to the inner wall of the storage box.

[0010] Preferably, the end of the optical fiber line movably passes through the surface of the fixing seat, and the position of the movable groove corresponds to the fixing seat.

[0011] Preferably, the end of the transmission rod is rotatably connected to the inner wall of the storage box, and the two ends of the limit rod are fixedly connected to the inner wall of the storage box.

[0012] Preferably, the end of the optical fiber line passes through the side of the storage box and is connected to the second optical fiber connector, and the shapes of the first optical fiber connector and the second optical fiber connector are adapted to the storage box.

[0013] Beneficial effects

[0014] The utility model adopts a winding drum and a transmission assembly. When faced with a long optical fiber line, the operator turns the handle to drive the first gear and the winding drum to rotate synchronously to realize the winding of the optical fiber line. At the same time, the second gear rotates accordingly, thereby driving the screw rod to rotate, prompting the fixed seat to move horizontally on the screw rod, ensuring that the optical fiber line is tightly and neatly stored on the winding drum, effectively avoiding the problem of the optical fiber line being scattered and entangled due to being too long. When the length of the optical fiber line is short, the operator can smoothly release the optical fiber line from the winding drum by turning the handle in the opposite direction, and adjust it to the required length, thereby enhancing the adaptability and flexibility of the optical fiber assembly.

[0015] In the present invention, a placement box and a box door are adopted. When the optical fiber component is not in use, after the optical fiber line is properly rolled up by the winding drum, the personnel can place the first optical fiber connector and the second optical fiber connector into the placement box respectively and close the box door, thereby providing comprehensive dust and damage prevention protection for the optical fiber component, maintaining the cleanliness of the optical fiber component, greatly extending its service life, and ensuring the stability and reliability of optical fiber communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an axonometric view of the present utility model;

[0017] Figure 2 It is a three-dimensional diagram of the utility model;

[0018] Figure 3 It is a structural diagram of the utility model;

[0019] Figure 4 This is the internal structure diagram of the utility model.

[0020] Legend:

[0021] 1. Storage box; 2. Handle; 3. Storage box; 4. Box door; 5. Optical fiber line; 6. First optical fiber connector; 7. Second optical fiber connector; 8. Movable slot; 9. First gear; 10. Winding drum; 11. Second gear; 12. Transmission assembly; 1201. Transmission rod; 1202. Screw rod; 1203. Movable block; 1204. Limit rod; 1205. Fixed seat. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0023] The specific embodiments of the present utility model are described below with reference to the accompanying drawings. Specific embodiment one:

[0025] Reference Figure 1-4 , a low-loss polarization-maintaining system optical fiber assembly, including a storage box 1, the side of the storage box 1 is rotatably connected to a handle 2, by rotating the handle 2, driving the first gear 9 and the winding drum 10 to rotate, thereby realizing the winding, winding or releasing of the optical fiber 5, the end of the handle 2 is provided with a first gear 9, through the first gear 9 and the second gear 11 meshing, the rotational force is transmitted to the transmission assembly 12, the end of the handle 2 passes through the side of the storage box 1 and is connected to the surface of the first gear 9, the surface of the first gear 9 is provided with a winding drum 10, through the setting of the winding drum 10, the optical fiber 5 is wound and stored to prevent the optical fiber 5 from being entangled in a disorderly manner, the end of the winding drum 10 is rotatably connected to the inner wall of the storage box 1, and the surface of the winding drum 10 is wound with an optical fiber 5.

[0026] The surface of the first gear 9 is meshed with the second gear 11, which receives the rotational force and transmits it to the transmission component 12, driving the screw rod 1202 to rotate. The surface of the second gear 11 is provided with a transmission component 12, and the transmission component 12 includes a transmission rod 1201, a screw rod 1202, a movable block 1203, a limit rod 1204 and a fixed seat 1205. The end of the transmission rod 1201 is rotatably connected to the inner wall of the storage box 1, and the screw rod 1202 is connected to the transmission rod 1201 to ensure the transmission of the rotational force. The ends of the two transmission rods 1201 are provided with screw rods 1202, and the movable block 1203 is driven horizontally by the rotation of the screw rod 1202. Movement, a movable block 1203 is provided on the surface of the screw rod 1202, and a limiting rod 1204 is connected to the surface of the movable block 1203. Through the setting of the limiting rod 1204, the movable block 1203 is limited to rotate, so that it keeps moving horizontally to prevent it from deviating from the track. The two ends of the limiting rod 1204 are fixedly connected to the inner wall of the storage box 1, and a fixed seat 1205 is provided on the surface of the movable block 1203. The end of the optical fiber line 5 movably passes through the surface of the fixed seat 1205. Through the setting of the fixed seat 1205, it is easy to control the horizontal movement direction of the optical fiber line 5 so that it cooperates with the winding drum 10, thereby neatly winding the optical fiber line 5.

[0027] A movable groove 8 is provided on the side of the storage box 1, and the position of the movable groove 8 corresponds to the fixed seat 1205. The setting of the movable groove 8 facilitates the horizontal movement space of the optical fiber line 5 when winding and releasing. A placement box 3 is provided on the side of the storage box 1, and a box door 4 is hinged on the surface of the placement box 3. Through the setting of the box door 4, the placement box 3 is closed to protect the internal joints from the influence of environmental factors such as dust. The position of the placement box 3 corresponds to the position of the movable groove 8 and the second optical fiber connector 7 respectively. The shapes of the first optical fiber connector 6 and the second optical fiber connector 7 are adapted to the placement box 3. Through the setting of the placement box 3, it is used to store the first optical fiber connector 6 and the second optical fiber connector 7 to protect the joints from damage. The end of the optical fiber line 5 is provided with a first optical fiber connector 6, and the other end of the optical fiber line 5 is provided with a second optical fiber connector 7. The end of the optical fiber line 5 passes through the side of the storage box 1 and is connected to the second optical fiber connector 7, which facilitates the winding of the optical fiber line 5 at the end of the first optical fiber connector 6, while the optical fiber line 5 corresponding to the end of the second optical fiber connector 7 is shorter and is not wound.

[0028] Fiber optic components use low-loss fiber materials, such as pure silica fiber cores. These materials reduce Rayleigh scattering loss by reducing the concentration of doping materials, thereby achieving lower loss levels. At the same time, polarization-maintaining fiber introduces special designs and materials (such as birefringent materials or suitably shaped glass materials) into the internal structure to maintain the polarization state of the optical signal, thereby reducing polarization-dependent loss.

[0029] When faced with a long optical fiber 5, the operator turns the handle 2, which drives the first gear 9 and the winding drum 10 to rotate synchronously to achieve the winding of the optical fiber 5. At the same time, the second gear 11 rotates, thereby driving the screw rod 1202 to rotate, causing the fixing seat 1205 to move horizontally on the screw rod 1202, driving the optical fiber 5 to move horizontally during the winding process, ensuring that the optical fiber 5 is tightly and neatly stored on the winding drum 10, effectively avoiding the problem of the optical fiber 5 being scattered and entangled due to being too long. When the optical fiber 5 is short, the operator rotates the handle 2 in the opposite direction to release the optical fiber 5 smoothly from the winding drum 10 and adjust it to the required length, enhancing the adaptability and flexibility of the optical fiber assembly. When the optical fiber assembly is not in use, after the optical fiber 5 is properly wound up by the winding drum 10, the operator can place the first optical fiber connector 6 and the second optical fiber connector 7 into the storage box 3 respectively and close the box door 4. This provides comprehensive dust and damage protection for the optical fiber assembly, maintains the cleanliness of the optical fiber assembly, greatly extends its service life, and ensures the stability and reliability of optical fiber communication. Specific embodiment two:

[0031] On the premise of meeting the above structure, the fixed seat 1205 can be replaced with two U-shaped connecting blocks with adjustment function, and adjusted in conjunction with the screw. By turning the screw, the two U-shaped connecting blocks are driven to move relative to each other, so as to flexibly adjust the distance between them to adapt to various optical fiber lines 5 from thin to thick, avoiding the limitations of the traditional fixed seat 1205 due to fixed size, and greatly improving the ease of use and adaptability of the device.

[0032] In summary:

[0033] 1. The use of the take-up drum 10 and the transmission assembly 12 enables, when faced with a long optical fiber 5, the operator rotates the handle 2 to drive the first gear 9 and the take-up drum 10 to rotate synchronously, thereby winding the optical fiber 5. At the same time, the second gear 11 rotates accordingly, thereby driving the screw rod 1202 to rotate, prompting the fixing seat 1205 to move horizontally on the screw rod 1202, ensuring that the optical fiber 5 is tightly and neatly stored on the take-up drum 10, effectively avoiding the problem of the optical fiber 5 being scattered and entangled due to being too long. When the optical fiber 5 is short, the operator rotates the handle 2 in the opposite direction to release the optical fiber 5 smoothly from the take-up drum 10 and adjust it to the required length, thereby enhancing the adaptability and flexibility of the optical fiber assembly;

[0034] 2. The placement box 3 and the box door 4 are used to realize that when the optical fiber component is not in use, after the optical fiber line 5 is properly rolled up by the reel 10, the personnel can place the first optical fiber connector 6 and the second optical fiber connector 7 into the placement box 3 respectively and close the box door 4, providing comprehensive dust and damage protection for the optical fiber component, maintaining the cleanliness of the optical fiber component, greatly extending its service life, and ensuring the stability and reliability of optical fiber communication.

[0035] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-loss polarization-maintaining system optical fiber assembly, comprising a storage box (1), characterized in that: The side of the storage box (1) is rotatably connected to a handle (2), the end of the handle (2) is provided with a first gear (9), the surface of the first gear (9) is provided with a winding drum (10), the surface of the winding drum (10) is wound with an optical fiber (5), the surface of the first gear (9) is meshed with a second gear (11), the surface of the second gear (11) is provided with a transmission assembly (12), the side of the storage box (1) is provided with a movable groove (8), the side of the storage box (1) is provided with a placement box (3), and the end of the optical fiber (5) is provided with a first optical fiber connector (6), the other end of the optical fiber line (5) is provided with a second optical fiber connector (7); the transmission assembly (12) comprises a transmission rod (1201), a screw rod (1202), a movable block (1203), a limiting rod (1204) and a fixed seat (1205), the ends of the two transmission rods (1201) are provided with screw rods (1202), the surface of the screw rod (1202) is provided with a movable block (1203), the surface of the movable block (1203) is connected to the limiting rod (1204), and the surface of the movable block (1203) is provided with a fixed seat (1205).

2. The low-loss polarization-maintaining optical fiber assembly according to claim 1, characterized in that: A door (4) is hinged on the surface of the placement box (3), and the position of the placement box (3) corresponds to the positions of the movable groove (8) and the second optical fiber connector (7).

3. The low-loss polarization-maintaining optical fiber assembly according to claim 1, wherein: The end of the handle (2) passes through the side of the storage box (1) and is connected to the surface of the first gear (9), and the end of the winding drum (10) is rotatably connected to the inner wall of the storage box (1).

4. The low-loss polarization-maintaining optical fiber assembly according to claim 1, wherein: The end of the optical fiber line (5) movably penetrates the surface of the fixing seat (1205), and the position of the movable groove (8) corresponds to the fixing seat (1205).

5. The low-loss polarization-maintaining optical fiber assembly according to claim 1, characterized in that: The end of the transmission rod (1201) is rotatably connected to the inner wall of the storage box (1), and the two ends of the limit rod (1204) are fixedly connected to the inner wall of the storage box (1).

6. The low-loss polarization-maintaining optical fiber assembly according to claim 1, characterized in that: The end of the optical fiber line (5) passes through the side of the storage box (1) and is connected to the second optical fiber connector (7); the shapes of the first optical fiber connector (6) and the second optical fiber connector (7) are adapted to the placement box (3).

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