A manually bidirectional rotating cutting knife structure

Abstract

This utility model relates to the field of fiber optic cleaver technology, specifically a manually operated bidirectional rotating cleaver structure, including a cleaver holder, a circular blade, a driven gear, a pin, a blade mounting screw, a "V"-shaped fixing block, a drive gear, a drive gear fixing screw, a stop plate, a washer, a cleaver base housing, and a stop plate mounting block. This utility model allows for bidirectional blade rotation simply by manually turning the drive gear, which helps ensure the flatness of the fiber optic cutting surface. The gear meshing transmission enables bidirectional blade rotation, making cutting convenient and quick. Furthermore, when the blade is partially worn, it avoids the worn area without requiring a full rotation reset, effectively ensuring the blade is in optimal condition at the cutting zone, guaranteeing cutting quality, and extending blade lifespan. The stop plate locks the gear position without external force, preventing accidental rotation and preventing accidental cutting of the fiber optic cable when it is not properly positioned.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic cleaver technology, specifically a manually operated bidirectional rotating cleaver structure. Background Technology

[0002] In the field of optical fiber communication, fiber optic cleavers are indispensable tools in the process of fiber splicing. Currently, most manual rotating blades on the market are of the unidirectional rotating blade type. In actual use, this type of blade can only rotate in one direction. During the cutting process, it is easy to make the fiber cut surface uneven. When the blade edge wears locally, it is impossible to avoid the worn area by fine adjustment. It can only jump around with the whole tooth pitch, which reduces the utilization rate of the effective cutting surface. After the blade wears, if it is necessary to return the blade to the previous effective cutting edge position, it must be rotated a full circle to reset it. The operation is cumbersome and affects the quality and efficiency of fiber optic cutting, which has certain shortcomings. Utility Model Content

[0003] The purpose of this invention is to provide a manually operated bidirectional rotating cutting blade structure to solve the aforementioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a manually operated bidirectional rotating cutting blade structure, comprising a blade assembly and a drive assembly. The blade assembly includes a blade holder, a circular blade, a driven gear, a pin, and a blade mounting screw. Both the circular blade and the driven gear have pin holes adapted to the pins. The overlapping pin holes of the circular blade and the driven gear are connected by the pins. The circular blade and the driven gear are rotatably mounted on the blade holder by the blade mounting screw. One side of the blade holder has a threaded hole adapted to the blade mounting screw. One end of the blade mounting screw is threaded into the threaded hole of the blade holder. The blade mounting screw has a stepped columnar structure; its connection with the blade holder is threaded, while its contact with the circular blade and the driven gear is a smooth columnar structure. The circular blade and the driven gear are rotatably mounted on the blade mounting screw. Washers are fitted onto both the blade mounting screw and the drive gear fixing screw. A spring is also fitted onto the blade mounting screw, and the washers on the blade mounting screw are located between the driven gear and the spring.

[0005] The drive assembly includes a "V"-shaped fixing rod, a drive gear, and a drive gear fixing screw. Support columns are located at both ends of one side of the "V"-shaped fixing rod, and through holes are formed at the support columns. A screw hole adapted to the position of the support column is formed on the tool holder. The "V"-shaped fixing rod is bolted to the tool holder. The drive gear is rotatably mounted on one side of the "V"-shaped fixing rod via the drive gear fixing screw. A screw hole adapted to the drive gear fixing screw is located at the center of one side of the drive gear. The drive gear is threaded onto the drive gear fixing screw. The contact point between the drive gear fixing screw and the drive gear is a cylindrical structure. The drive gear is rotatably mounted on the drive gear fixing screw, and the drive gear meshes with the driven gear.

[0006] Preferably, a baffle mounting block is fixedly connected to one side of the "V"-shaped fixing rod, and a baffle tooth is installed on the baffle mounting block by bolts. The baffle tooth is a metal piece that can be reset after bending, and one end of the baffle tooth is stuck in a tooth groove of the drive gear.

[0007] Preferably, it also includes a cutting blade base housing, the blade holder is fixedly installed inside the cutting blade base housing, and the cutting blade base housing is provided with a through groove for the drive gear to move and a through groove for the rotation of the circular blade.

[0008] Preferably, the spring provides a certain preload to ensure good contact and stable rotation between the circular blade and the driven gear and the blade mounting screw. The material of the shim is selected based on its wear resistance and lubricity to reduce friction and wear during rotation.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] This invention allows for bidirectional rotation of the blade simply by manually turning the drive gear, which helps ensure the flatness of the fiber optic cutting surface. The gear meshing transmission enables bidirectional blade rotation, making cutting convenient and quick. Furthermore, when the blade experiences localized wear, it avoids the worn area without requiring a full rotation reset, effectively ensuring the blade is in optimal condition at the cutting zone, guaranteeing cutting quality, and extending blade lifespan. The stop plate locks the gear position without external force, preventing accidental rotation and preventing accidental cutting of the fiber optic cable when it is not properly positioned. The ingenious structure of the device facilitates its widespread use. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0012] Figure 2 This is an exploded view of the present invention;

[0013] Figure 3 This is a schematic diagram of the drive component structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the blade assembly structure of this utility model;

[0015] Figure 5 This is a rear-view structural diagram of the present invention assembled on the cutting blade base housing;

[0016] Figure 6 This is a schematic diagram of the rear side view of the structure of the present invention assembled on the base housing of the cutting blade.

[0017] In the diagram: 1. Tool holder; 2. Circular blade; 3. Driven gear; 4. Pin; 5. Blade mounting screw; 6. "V" shaped fixing block; 7. Drive gear; 8. Drive gear fixing screw; 9. Gear stop plate; 10. Washer; 11. Cutting blade base housing; 601. Gear stop plate mounting block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1 to 6 The present invention provides a technical solution: a manually operated bidirectional rotating cutting blade structure, including a blade assembly and a drive assembly.

[0020] The blade assembly mainly consists of a tool holder 1, a circular blade 2, a driven gear 3, a pin 4, and a blade mounting screw 5. Both the circular blade 2 and the driven gear 3 have pin holes that mate with the pin 4. The pin 4 connects the pin holes of the circular blade 2 and the driven gear 3, enabling their linkage. The blade mounting screw 5 has a stepped columnar structure, with one end threaded into a threaded hole in the tool holder 1. The circular blade 2 and the driven gear 3 are rotatably mounted on the columnar structure of the blade mounting screw 5. A washer 10 and a spring are sleeved on the blade mounting screw 5. The washer 10 is located between the driven gear 3 and the spring. The spring provides a certain preload to the blade assembly, ensuring its stability during rotation.

[0021] The drive assembly includes a "V"-shaped fixing rod 6, a drive gear 7, and a drive gear fixing screw 8. The "V"-shaped fixing rod 6 is bolted to the tool holder 1. The drive gear 7 is rotatably mounted on one side of the "V"-shaped fixing rod 6 via the drive gear fixing screw 8. The drive gear 7 meshes with the driven gear 3 to transmit power. A baffle mounting block 601 is fixedly connected to one side of the "V"-shaped fixing rod 6. A baffle plate 9 is bolted to the baffle mounting block 601. One end of the baffle plate 9 is engaged in a tooth groove of the drive gear 7. When the drive gear 7 is rotated, the baffle plate 9 prevents the drive gear 7 from rotating on its own without human intervention, thus avoiding the fiber optic cable being cut due to accidental rotation of the drive gear 7 during fiber optic cutting, thereby improving the safety and reliability of the cutting process.

[0022] Furthermore, the entire cutting blade structure also includes a cutting blade base housing 11, with the blade holder 1 fixedly installed inside the cutting blade base housing 11. The cutting blade base housing 11 is provided with a through groove for the drive gear 7 to be turned and a through groove for the circular blade 2 to rotate, so that the operator can perform manual turning operation to realize the bidirectional rotation of the circular blade 2.

[0023] When the cutting blade needs to be rotated, the operator can use their fingers to turn the exposed drive gear 7 in the through slot on the cutting blade base housing 11. Since the drive gear 7 meshes with the driven gear 3, and the driven gear 3 is connected to the circular blade 2 via a pin 4, the rotation of the drive gear 7 will cause the driven gear 3 and the circular blade 2 to rotate together. Simultaneously, one end of the stop plate 9 is engaged in a tooth groove of the drive gear 7. When the operator stops turning the drive gear 7, the stop plate 9 prevents the drive gear 7 from rotating on its own without human intervention. This ensures that the rotation angle of the circular blade 2 remains stable during fiber optic cutting, avoiding deviations in the fiber cutting position or the fiber being cut due to accidental blade rotation, thereby improving the quality and safety of fiber optic cutting.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A manually operated bidirectional rotating cutting blade structure, characterized in that: The device includes a blade assembly and a drive assembly. The blade assembly includes a tool holder (1), a circular blade (2), a driven gear (3), a pin (4), and a blade mounting screw (5). The circular blade (2) and the driven gear (3) are connected by the pin (4), and the circular blade (2) and the driven gear (3) are rotatably mounted on the tool holder (1) by the blade mounting screw (5). The drive assembly includes a "V"-shaped fixing rod (6), a drive gear (7), and a drive gear fixing screw (8). The "V"-shaped fixing rod (6) is bolted to the tool holder (1), and the drive gear (7) is rotatably mounted on one side of the "V"-shaped fixing rod (6) by the drive gear fixing screw (8). The drive gear (7) meshes with the driven gear (3).

2. The manually operated bidirectional rotating cutting blade structure according to claim 1, characterized in that: A baffle mounting block (601) is fixedly connected to one side of the "V"-shaped fixing rod (6). A baffle tooth (9) is installed on the baffle mounting block (601) by bolts. One end of the baffle tooth (9) is stuck in a tooth groove of the drive gear (7).

3. The manually operated bidirectional rotating cutting blade structure according to claim 1, characterized in that: Both the circular blade (2) and the driven gear (3) are provided with pin holes that are adapted to the pin (4), and the overlapping pin holes of the circular blade (2) and the driven gear (3) are connected by the pin (4).

4. The manually operated bidirectional rotating cutting blade structure according to claim 2, characterized in that: The tool holder (1) has a threaded hole on one side that is compatible with the blade mounting screw (5). One end of the blade mounting screw (5) is threaded into the threaded hole of the tool holder (1). The blade mounting screw (5) has a stepped columnar structure. The connection between the screw and the tool holder (1) is a threaded structure, and the contact point with the circular blade (2) and the driven gear (3) is a smooth columnar structure. The circular blade (2) and the driven gear (3) are rotatably mounted on the blade mounting screw (5).

5. The manually operated bidirectional rotating cutting blade structure according to claim 4, characterized in that: Washers (10) are fitted on both the blade mounting screw (5) and the drive gear fixing screw (8). A spring is also fitted on the blade mounting screw (5), and the washer (10) on the blade mounting screw (5) is located between the driven gear (3) and the spring.

6. The manually operated bidirectional rotating cutting blade structure according to claim 1, characterized in that, The center of one side of the drive gear (7) is provided with a screw hole that is compatible with the drive gear fixing screw (8). The drive gear (7) is threaded onto the drive gear fixing screw (8). The contact point between the drive gear fixing screw (8) and the drive gear (7) is a light column structure. The drive gear (7) is rotatably mounted on the drive gear fixing screw (8).

Images