Limiting component for cutting optical fiber pigtail

Abstract

The utility model relates to the technical field of optical fiber cutting, in particular to a limiting component for cutting an optical fiber pigtail. Comprising a limiting block and a scale plate, the number of the limiting blocks is two. The limiting block comprises a clamping plate and a clamping block; the clamping plate is connected with the clamping block in a swinging manner; a through hole corresponding to the diameter of the optical fiber is formed between the clamping plate and the clamping block; length scales are arranged on the scale plate; one end of the scale plate is fixedly connected with one of the clamping blocks; and the other clamping block is sleeved on the scale plate in a sliding manner. In the prior art, the cutting length of an optical fiber sheath can only be visually measured according to the working experience of a worker. Errors are relatively large, and if the cutting length is not reasonable, follow-up operation or system stability is easily affected. Compared with the prior art, the optical fiber is limited through the limiting blocks, the current length of the optical fiber can be obtained through the scale plate by adjusting the distance between the limiting blocks, and therefore cutting operation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber cutting technology, and in particular to a limiting component for cutting optical fiber pigtails. Background Technology

[0002] Fiber optic pigtails are fiber optic assemblies with a fiber optic connector at one end and a bare fiber end (requiring fusion splicing or mechanical connection) at the other. They are mainly used to connect optical cables to equipment or extend fiber optic links. As the "last mile" connector in optical networks, the correct selection and installation of fiber optic pigtails directly affect system stability and are an indispensable component of efficient optical communication.

[0003] In practice, to obtain an effective length of fiber optic pigtail, workers need to use wire strippers to cut off a specific length of the fiber sheath to expose the bare fiber inside, thus meeting the requirements for subsequent fusion splicing or mechanical connection. While wire strippers can cut only the sheath without cutting the bare fiber, they cannot precisely measure the cut length. Workers can only visually estimate the cut length based on experience. If the cut sheath length is too short, the fiber cannot be placed into the fusion splicing equipment or assembled into the mechanical connection structure, requiring a second cut. If the cut sheath length is too long, the protective shell assembled after fusion splicing will not fully cover the cut area, potentially affecting system stability. Utility Model Content

[0004] In view of the technical problems of the prior art, this utility model provides a limiting component for cutting optical fiber pigtails.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A limiting component for cutting optical fiber pigtails includes: a limiting block and a scale plate; the number of limiting blocks is two; the limiting block includes a clamping plate and a clamping block; the clamping plate is oscillatingly connected to the clamping block; a through hole corresponding to the diameter of the optical fiber is opened between the clamping plate and the clamping block; the scale plate is provided with a length scale; one end of the scale plate is fixedly connected to one of the clamping blocks; the other clamping block is slidably sleeved on the scale plate.

[0007] Furthermore, the clamping plate includes a positioning clamping plate; the positioning clamping plate is oscillatingly connected to the clamping block; a positioning through hole is provided between the positioning clamping plate and the clamping block; the diameter of the positioning through hole corresponds to the diameter of the optical fiber; and a rubber layer is provided on the inner wall of the positioning through hole.

[0008] Furthermore, the clamp also includes a sliding clamp; the sliding clamp is oscillatingly connected to one of the clamping blocks; a sliding through hole is provided between the sliding clamp and the clamping block; the diameter of the sliding through hole corresponds to the diameter of the optical fiber.

[0009] Furthermore, it also includes a cutting block; the cutting block is disposed between the limiting blocks; the cutting block is connected to one of the limiting blocks; the cutting block is slidably fitted onto the scale plate; a blade is disposed inside the cutting block; the inner diameter of the blade corresponds to the diameter of the bare fiber inside the optical fiber.

[0010] Furthermore, the cutting block includes a pressing block, a positioning block, and a snap-fit ​​structure; the pressing block and the positioning block are equipped with blades; the pressing block is slidably connected to the positioning block through the snap-fit ​​structure; the positioning block has a cavity for accommodating the snap-fit ​​structure; the positioning block is slidably fitted onto the scale plate.

[0011] Furthermore, the snap-fit ​​structure includes a snap hook and a connecting rod; the snap hook protrudes from the positioning block; the snap hook is connected to one of the limiting blocks; the snap hook is connected to the connecting rod; and the connecting rod is connected to the pressing block.

[0012] Furthermore, the snap-fit ​​structure also includes a reset plate and a reset spring; the reset plate is connected to the snap hook; one end of the reset spring abuts against the reset plate, and the other end abuts against the positioning block. Attached Figure Description

[0013] Figure 1 Overall structure diagram.

[0014] Figure 2 : Limiting block structure diagram.

[0015] Figure 3 Exploded view of the cut block.

[0016] In the diagram: 1. Limiting block; 11. Clamping plate; 12. Clamping block; 111. Positioning clamping plate; 112. Sliding clamping plate; 1111. Positioning through hole; 1121. Sliding through hole; 2. Scale plate; 3. Cutting block; 31. Pressing block; 32. Positioning block; 33. Snap-fit ​​structure; 331. Hook; 332. Connecting rod; 333. Reset plate; 334. Reset spring. Detailed Implementation

[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0018] A limiting component for cutting optical fiber pigtails includes: a limiting block 1, a scale plate 2, and a cutting block 3. The scale plate 2 has length markings. There are two limiting blocks 1. Each limiting block 1 includes a clamping plate 11 and a clamping block 12. The clamping plate 11 includes a positioning clamping plate 111. The positioning clamping plate 111 is oscillatingly connected to the clamping block 12. A positioning through hole 1111 is formed between the positioning clamping plate 111 and the clamping block 12. The diameter of the positioning through hole 1111 corresponds to the diameter of the optical fiber. A rubber layer is provided on the inner wall of the positioning through hole 1111. The clamping plate 11 also includes a sliding clamping plate 112. The sliding clamping plate 112 is oscillatingly connected to one of the clamping blocks 12. A sliding through hole 1121 is formed between the sliding clamping plate 112 and the clamping block 12. The diameter of the sliding through hole 1121 corresponds to the diameter of the optical fiber. For ease of description, the limiting block 1, which is equipped with both the positioning clamp 111 and the sliding clamp 112, is defined as limiting block A. The limiting block 1, which is equipped with only the positioning clamp 111, is defined as limiting block B. The clamping block 12 of limiting block A is fixedly connected to the scale plate 2. The clamping block 12 of limiting block B is slidably fitted onto the scale plate 2.

[0019] The cutting block 3 includes a pressing block 31, a positioning block 32, and a locking structure 33. Blades are disposed within the pressing block 31 and the positioning block 32. The pressing block 31 is slidably connected to the positioning block 32 via the locking structure 33. The positioning block 32 has a cavity for accommodating the locking structure 33. The positioning block 32 is slidably fitted onto the scale plate 2. The locking structure 33 includes a hook 331, a connecting rod 332, a reset plate 333, and a reset spring 334. The hook 331 protrudes from the positioning block 32. The hook 331 is connected to the limiting block A. The hook 331 is connected to the connecting rod 332. The connecting rod 332 is connected to the pressing block 31. The reset plate 333 is connected to the hook 331. One end of the reset spring 334 abuts against the reset plate 333, and the other end abuts against the positioning block 32.

[0020] In the default state, limiting block A, cutting block 3, and limiting block B are in a mutually close fit. When it is necessary to cut the optical fiber, lift clamping plate 11. Adjust the position of the optical fiber so that it is positioned on clamping block 12 of limiting block A, passes between pressing block 31 and positioning block 32, and is then positioned on clamping block 12 of limiting block B. At this time, the end of the optical fiber is in contact with the outer edge of limiting block B. After the position adjustment is completed, fasten positioning clamping plate 111 of limiting block B and sliding clamping plate 112 of limiting block A. At this time, the optical fiber is located within positioning through hole 1111 and sliding through hole 1121. The inner walls of sliding through hole 1121 and positioning through hole 1111 fully embrace the optical fiber. At the same time, because the inner wall of positioning through hole 1111 is provided with a rubber layer, while the inner wall of sliding through hole 1121 is smooth, the coefficient of friction between sliding through hole 1121 and optical fiber is less than the coefficient of friction between positioning through hole 1111 and optical fiber. Therefore, under the influence of friction, the optical fiber cannot slide relative to the positioning through-hole 1111, but it can slide relative to the sliding through-hole 1121. Preferably, the inner diameter of the sliding through-hole 1121 is larger than the diameter of the optical fiber.

[0021] At this point, the worker presses down on the sliding clamp 112 of limit block A with one hand and the positioning clamp 111 of limit block B with the other. Then, limit block A is pulled, causing it to slide relative to limit block B. Driven by limit block A, the scale plate 2 slides synchronously relative to limit block B. The distance the scale plate 2 moves at this point represents the length of the fiber optic sheath to be cut. The worker can observe the scale on the scale plate 2 to determine the current length. Once the specified length is reached, pulling on limit block A is stopped. Meanwhile, because the hook 331 of the cutting block 3 engages with limit block A, the cutting block 3 moves synchronously with limit block A.

[0022] Once the movement distance of the scale plate 2 matches the required cutting length of the outer sheath, the positioning clamp 111 on the limiting block A is engaged, and the positioning clamp 111 on the limiting block B is released. At this time, the frictional force between the limiting block A and the optical fiber is greater than the frictional force between the limiting block B and the optical fiber. Therefore, the worker holds the limiting block A with one hand and the limiting block B with the other. Then, the worker pulls the limiting block B, causing it to completely detach from the scale plate 2.

[0023] After the limiting block B is completely disengaged, the freed hand holds the cutting block 3. By pressing the pressing block 31, it is brought closer to the positioning block 32. When the pressing block 31 and the positioning block 32 are fully engaged, the blades inside the pressing block 31 and the positioning block 32 grip the optical fiber, thereby cutting the outer sheath of the optical fiber. Because the inner diameter of the blade corresponds to the diameter of the bare fiber, the bare fiber will not be cut by the blade. On the other hand, when the pressing block 31 is pressed, the pressing block 31 drives the hook 331 and the reset plate 333 to move synchronously through the connecting rod 332, causing the hook 331 to disengage from the limiting block A and causing the reset spring 334 to accumulate elastic force. At this time, the cutting block 3 is pulled, causing the cutting block 3 to slide along the scale plate 2. Under the push of the cutting block 3, the outer sheath is completely detached from the bare fiber, exposing the bare fiber. Thus, the cutting of the optical fiber is completed. When the cutting block 3 is released, the elastic force stored in the return spring 334 is released, and the pressing block 31 returns to its initial position under the push of the return spring 334.

[0024] Preferably, cutting block 3 can be omitted during actual operation. After the limiting block B is completely disengaged from the scale plate 2, wire strippers can be used instead of cutting block 3 to complete the aforementioned cutting process. However, using cutting block 3 makes the operation more convenient and the cutting accuracy more controllable.

[0025] In summary, this invention can effectively limit the movement of optical fibers and allow workers to accurately determine the length of the cut outer sheath to meet subsequent needs. Furthermore, it can be operated by a single person, making the process quite convenient.

[0026] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A limiting component for cutting optical fiber pigtails, characterized in that: include: Limiting block (1), scale plate (2); The number of the limiting blocks (1) is two; The limiting block (1) includes a clamping plate (11) and a clamping block (12); The clamping plate (11) is oscillatingly connected to the clamping block (12); A through hole corresponding to the diameter of the optical fiber is provided between the clamping plate (11) and the clamping block (12); The scale plate (2) is provided with length scale; One end of the scale plate (2) is fixedly connected to one of the clamping blocks (12); Another clamp (12) is slidably fitted onto the scale plate (2).

2. The limiting member for fiber optic cable stub cutting according to claim 1, wherein: The clamp (11) includes a positioning clamp (111). The positioning clamp (111) is swayably connected to the clamp (12); A positioning through hole (1111) is provided between the positioning clamp (111) and the clamp (12). The diameter of the positioning through hole (1111) corresponds to the diameter of the optical fiber; The inner wall of the positioning through hole (1111) is provided with a rubber layer.

3. The limiting member for fiber optic cable stub cutting according to claim 2, wherein: The clamp (11) also includes a sliding clamp (112); The sliding clamp (112) is oscillatingly connected to one of the clamps (12); A sliding through hole (1121) is provided between the sliding clamp (112) and the clamp (12). The diameter of the sliding through-hole (1121) corresponds to the diameter of the optical fiber.

4. The limiting member for fiber optic cable stub cutting according to claim 1, wherein: It also includes cutting blocks (3); The cutting block (3) is disposed between the limiting blocks (1); The cutting block (3) is connected to one of the limiting blocks (1); The cutting block (3) is slidably fitted onto the scale plate (2); The cutting block (3) is equipped with a blade; The inner diameter of the blade corresponds to the diameter of the bare fiber inside the optical fiber.

5. The limiting member for fiber optic cable stub cutting according to claim 4, wherein: The cutting block (3) includes a pressing block (31), a positioning block (32), and a snap-fit ​​structure (33); The blade is provided inside the pressing block (31) and the positioning block (32); The pressing block (31) is slidably connected to the positioning block (32) through the snap-fit ​​structure (33); The positioning block (32) has a cavity for accommodating the snap-fit ​​structure (33); The positioning block (32) is slidably fitted onto the scale plate (2).

6. The limiting member for fiber optic cable stub cutting according to claim 5, wherein: The snap-fit ​​structure (33) includes a snap hook (331) and a connecting rod (332); The hook (331) protrudes from the positioning block (32); The hook (331) is connected to one of the limiting blocks (1); The hook (331) is connected to the connecting rod (332); The connecting rod (332) is connected to the pressing block (31).

7. A limiting member for cutting optical fiber pigtails according to claim 6, characterized in that: The snap-fit ​​structure (33) also includes a reset plate (333) and a reset spring (334); The reset plate (333) is connected to the hook (331); One end of the reset spring (334) abuts against the reset plate (333), and the other end abuts against the positioning block (32).

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