A cable ring cutting device

Abstract

The utility model discloses a cable ring cutting device, including the handle, the connecting end fixedly connected with the open shell of handle, the inner surface rotationally embedded of open shell has the open ring, the outer surface fixedly connected with arc gear rack of open ring, two transmission assemblies are commonly installed between arc gear rack and open shell, two transmission assemblies commonly meshed connection has main gear, one end of main gear is fixedly connected with power handle, and power handle penetrates open shell and sets up, and is rotatably connected with it. In the utility model, through adopting the side opening type design of open shell and open ring, the cable end does not need to be completely inserted into the device center, and the cable can be directly clamped into any position from the side for ring cutting operation, completely solve the operation problem that long distance threading is needed when traditional full package type ring cutting device cuts the middle section of cable, especially suitable for the ring cutting operation of the middle section or the curved section of cable, and the construction efficiency is improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of cable circumferential cutting technology, and in particular to a cable circumferential cutting device. Background Technology

[0002] Cable circumferential cutting is an operation that involves cutting a cable in a circular shape, primarily used during cable maintenance and repair. Currently, when performing cable circumferential cutting, the first step is to accurately mark the location to be cut, based on the cable section to be repaired or replaced. Then, a suitable tool (such as cable shears or a circumferential cutter) is used to make the circular cut. During the cut, it is crucial to maintain a clean, smooth surface to avoid damaging the cable's internal conductors or insulation.

[0003] Most existing cable circumferential cutting devices are fully enclosed ring structures, requiring the cable end to be completely inserted into the center of the device before circumferential cutting can be performed. When the circumferential cutting position is far from the cable end (such as circumferential cutting in the middle section), the operator must thread the cable a long distance through the device, which not only limits the operating space but is also particularly inconvenient for fixing or bending the cable, seriously affecting construction efficiency.

[0004] For example, the cable circumferential cutting device with existing technology license publication numbers CN219321968U and CN221747836U both have the above-mentioned problems.

[0005] Therefore, improvements are proposed. Utility Model Content

[0006] This utility model is a cable circumferential cutting device proposed to overcome the shortcomings of the existing technology.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a cable circumferential cutting device, including a handle, an open housing fixedly connected to the connecting end of the handle, an open ring rotatably embedded in the inner surface of the open housing, an arc-shaped rack fixedly connected to the outer surface of the open ring, two transmission components jointly installed between the arc-shaped rack and the open housing, the two transmission components jointly meshing with a main gear, a power handle fixedly connected to one end of the main gear, and the power handle passing through the open housing and rotatably connected thereto;

[0008] The inner surface of the open ring and one side of the outer wall are fixedly connected to a fixing frame. An adjustable ring cutting tool is installed on the fixing frame. A scale assembly is installed between the adjustable ring cutting tool and the fixing frame.

[0009] A fixing seat is fixedly connected to one side of the outer surface of the open shell, and a centering clamping assembly is installed on the fixing seat.

[0010] Furthermore, both sides of the outer surface of the open ring are slidably connected to arc-shaped slide rails, and the two arc-shaped slide rails are respectively fixedly installed on the inner walls of the two sides of the open housing. This structural design ensures the stability and coaxiality of the open ring during the rotary cutting process, and effectively prevents the problem of uneven cut caused by tool deviation.

[0011] Furthermore, both of the transmission components include a pinion gear, which is rotatably engaged with the inner walls of both sides of the opening housing and meshes with the main gear. A large gear is meshed with one side of the outer surface of the pinion gear, and the large gear is rotatably engaged with the inner walls of both sides of the opening housing and meshes with the arc-shaped rack, which facilitates driving the opening ring to rotate.

[0012] Furthermore, the adjustable circumferential cutting tool includes a first handwheel, which is located on the top of the fixed frame. A one-way screw is fixedly connected to the bottom of the first handwheel, and the one-way screw passes through the fixed frame and is threadedly connected to the fixed frame. A tool holder is rotatably connected to the bottom of the one-way screw, and the tool holder slides in contact with the fixed frame. A cutting blade is fixedly connected to the bottom of the tool holder. The one-way screw can realize the adjustment of the tool feed, which is beneficial to control the cutting depth.

[0013] Furthermore, the scale assembly includes a scale ruler, which is fixedly connected to the tool holder. A pointer is attached to one side of the outer surface of the scale ruler, and the pointer is fixedly connected to the mounting bracket. The visual scale design allows the operator to intuitively grasp the cutting depth of the tool.

[0014] Furthermore, the centering clamping assembly includes a second handwheel, which is located on the top of the fixed base. A bidirectional screw is fixedly connected to the bottom of the second handwheel, and the bidirectional screw passes through the fixed base and is rotatably connected to the fixed base. Two V-shaped clamping blocks are symmetrically threaded on the outer surface of the bidirectional screw. The V-shaped groove design is adapted to cables of different diameters, making it convenient to clamp and fix cables of various diameters.

[0015] Furthermore, both V-shaped clamps are slidably connected to the fixed base, and the sliding guide structure ensures the linearity of the V-shaped clamps during movement.

[0016] The beneficial effects of this utility model are:

[0017] In use, this utility model cable circumferential cutting device, through its side-opening design with an open shell and an open ring, eliminates the need to fully insert the cable end into the center of the device. It can directly clamp the cable from the side at any position for circumferential cutting, completely solving the operational problem of long-distance cable threading required by traditional fully enclosed circumferential cutting devices when cutting the middle section of the cable. It is particularly suitable for circumferential cutting operations on the middle or curved sections of cables, significantly improving construction efficiency. With the synergistic effect of the centering clamping component and the adjustable circumferential cutting blade, it not only ensures cutting stability but also achieves depth control for cables of different diameters, improving overall adaptability. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 : A first-view structural diagram of the present invention;

[0020] Figure 2 : Overall second-view structural diagram of this utility model;

[0021] Figure 3 : A three-dimensional cross-sectional view of the shell of this utility model;

[0022] Figure 4 : A schematic diagram showing the connection between the scale assembly and the adjustable circumferential cutting tool of this utility model.

[0023] The attached figures are labeled as follows:

[0024] 1. Handle; 2. Power handle; 3. Open housing; 4. Mounting base; 5. Opening ring; 6. Tool holder; 7. V-shaped clamp; 8. Second handwheel; 9. Double-acting screw; 10. Arc-shaped slide rail; 11. Arc-shaped rack; 12. Large gear; 13. Small gear; 14. Main gear; 15. Scale; 16. First handwheel; 17. Pointer; 18. One-way screw; 19. Mounting bracket; 20. Cutting blade. Detailed Implementation

[0025] 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.

[0026] like Figures 1 to 4 As shown, a cable circumferential cutting device is disclosed, including a handle 1. An open housing 3 is fixedly connected to the connecting end of the handle 1. An open ring 5 is rotatably embedded in the inner surface of the open housing 3. Arc-shaped slide rails 10 are slidably connected to both sides of the outer surface of the open ring 5, and the two arc-shaped slide rails 10 are respectively fixedly installed on the inner walls of the two sides of the open housing 3.

[0027] An arc-shaped rack 11 is fixedly connected to the outer surface of the opening ring 5. Two transmission components are installed together between the arc-shaped rack 11 and the opening housing 3. The two transmission components are meshed with a main gear 14. One end of the main gear 14 is fixedly connected to a power handle 2, which passes through the opening housing 3 and is rotatably connected to it. Both transmission components include a pinion 13, which is rotatably embedded in the inner walls of both sides of the opening housing 3 and meshes with the main gear 14. A large gear 12 is meshed with one side of the outer surface of the pinion 13, which is also rotatably embedded in the inner walls of both sides of the opening housing 3 and meshes with the arc-shaped rack 11.

[0028] A fixing frame 19 is fixedly connected to the inner surface of the open ring 5 and one outer wall. An adjustable ring cutting tool is mounted on the fixing frame 19. A scale assembly is installed between the adjustable ring cutting tool and the fixing frame 19. The adjustable ring cutting tool includes a first handwheel 16, which is located on the top of the fixing frame 19. A one-way screw 18 is fixedly connected to the bottom of the first handwheel 16. The one-way screw 18 passes through the fixing frame 19 and is threadedly connected to the fixing frame 19. A tool holder 6 is rotatably connected to the bottom of the one-way screw 18. The helix angle of the one-way screw 18 is smaller than the friction angle, giving the one-way screw 18 a self-locking capability. This design prevents the screw from shifting due to vibration or load. The bottom of the one-way screw 18 is equipped with a limiting ring, and the cutter holder 6 is rotatably fitted onto the limiting ring, achieving a limited rotational connection between the one-way screw 18 and the cutter holder 6. The cutter holder 6 slides in contact with the fixing frame 19. A cutting blade 20 is fixedly connected to the bottom of the cutter holder 6. The scale assembly includes a scale 15, which is fixedly connected to the cutter holder 6. A pointer 17 is attached to one side of the outer surface of the scale 15, and the pointer 17 is fixedly connected to the fixing frame 19. The outer surface of the scale 15 has scale markings, and the pointer 17, in conjunction with the scale markings, can determine the displacement of the cutter holder 6.

[0029] A fixed base 4 is fixedly connected to one side of the outer surface of the open housing 3. The fixed base 4 is equipped with a centering clamping assembly, which includes a second handwheel 8. The second handwheel 8 is located at the top of the fixed base 4. A bidirectional screw 9 is fixedly connected to the bottom of the second handwheel 8. The bidirectional screw 9 passes through the fixed base 4 and is rotatably connected to the fixed base 4. Two limiting rings are symmetrically fixedly connected to the outer surface of the bidirectional screw 9. The limiting rings are located inside the fixed base 4 and abut against the top and bottom of the inner side of the fixed base 4, respectively, to achieve the purpose of limiting the rotation of the bidirectional screw 9 and the fixed base 4. Two V-shaped clamping blocks 7 are symmetrically threaded on the outer surface of the bidirectional screw 9. Both V-shaped clamping blocks 7 are slidably connected to the fixed base 4. The thread helix angle of the bidirectional screw 9 is less than the friction angle, which gives the bidirectional screw 9 a self-locking ability and can prevent it from shifting due to vibration or load.

[0030] Working principle: The operator first rotates the second handwheel 8, which, through the transmission of the bidirectional screw 9, drives the two V-shaped clamps 7 to slide towards each other on the fixed base 4, clamping and fixing the cable in the center position of the device. The unique design of the V-shaped clamps 7 can adapt to cables of different diameters, ensuring that the cable axis coincides with the rotation center of the open ring 5.

[0031] Rotating the first handwheel 16 drives the one-way screw 18 to rotate, which in turn drives the cutter holder 6 to move along the fixed frame 19 toward the cable. The scale 15 and pointer 17 work together to accurately control the cutting depth of the cutting blade 20, which is suitable for cutting cable sheaths of different thicknesses.

[0032] The operator cranks the power handle 2 to rotate the main gear 14, which transmits power to the arc-shaped rack 11 through two sets of small gears 13 and large gears 12. This drives the open ring 5 to rotate smoothly along the arc-shaped slide rail 10, thereby driving the cutting blade 20 to complete the circumferential cutting operation.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cable circumferential cutting device, comprising a handle (1), characterized in that: The handle (1) is fixedly connected to an open housing (3) at its connecting end. An open ring (5) is rotatably fitted onto the inner surface of the open housing (3). An arc-shaped rack (11) is fixedly connected to the outer surface of the open ring (5). Two transmission components are installed between the arc-shaped rack (11) and the open housing (3). The two transmission components are meshed with a main gear (14). One end of the main gear (14) is fixedly connected to a power handle (2). The power handle (2) passes through the open housing (3) and is rotatably connected to it. The inner surface of the open ring (5) and one side of the outer wall are fixedly connected to a fixing frame (19). An adjustable ring cutting tool is installed on the fixing frame (19). A scale assembly is installed between the adjustable ring cutting tool and the fixing frame (19). A fixing seat (4) is fixedly connected to one side of the outer surface of the open housing (3), and a centering clamping assembly is installed on the fixing seat (4).

2. The cable circumferential cutting device according to claim 1, characterized in that: Both sides of the outer surface of the opening ring (5) are slidably connected to arc-shaped slide rails (10), and the two arc-shaped slide rails (10) are respectively fixedly installed on the inner walls of the two sides of the opening shell (3).

3. The cable circumferential cutting device according to claim 1, characterized in that: Both of the transmission components include a pinion (13), which is rotatably fitted into the inner walls of both sides of the open housing (3) and meshes with the main gear (14). A large gear (12) is meshed with one side of the outer surface of the pinion (13), which is rotatably fitted into the inner walls of both sides of the open housing (3) and meshes with the arc-shaped rack (11).

4. The cable circumferential cutting device according to claim 1, characterized in that: The adjustable ring cutting tool includes a first handwheel (16), which is located on the top of the fixed frame (19). A one-way screw (18) is fixedly connected to the bottom of the first handwheel (16), and the one-way screw (18) passes through the fixed frame (19) and is threadedly connected to the fixed frame (19). A cutter holder (6) is rotatably connected to the bottom of the one-way screw (18), and the cutter holder (6) slides in contact with the fixed frame (19). A cutting blade (20) is fixedly connected to the bottom of the cutter holder (6).

5. A cable circumferential cutting device according to claim 4, characterized in that: The scale assembly includes a scale (15), and the scale (15) is fixedly connected to the tool holder (6). A pointer (17) is attached to one side of the outer surface of the scale (15), and the pointer (17) is fixedly connected to the fixing frame (19).

6. The cable circumferential cutting device according to claim 1, characterized in that: The centering clamping assembly includes a second handwheel (8), which is located on the top of the fixed seat (4). A bidirectional screw (9) is fixedly connected to the bottom of the second handwheel (8), and the bidirectional screw (9) passes through the fixed seat (4) and is rotatably connected to the fixed seat (4). Two V-shaped clamping blocks (7) are symmetrically threaded on the outer surface of the bidirectional screw (9).

7. A cable circumferential cutting device according to claim 6, characterized in that: Both of the V-shaped clamps (7) are slidably connected to the fixed base (4).

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