Cut-off apparatus for fireproof cable

By introducing a threaded rod and slider structure into the fire-resistant cable cutting device, combined with the design of a limit plate and drive wheel, the problem of the existing equipment being unable to accurately cut the length has been solved, and the accuracy and stability of cable cutting have been achieved.

CN224407710UActive Publication Date: 2026-06-26中开电缆科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
中开电缆科技有限公司
Filing Date
2025-08-07
Publication Date
2026-06-26

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  • Figure CN224407710U_ABST
    Figure CN224407710U_ABST
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Abstract

The utility model provides a kind of cutting-off equipment for fireproof cable, including cutting seat, the rear side of cutting seat is provided with cutting assembly for cutting fireproof cable, the front side of cutting seat is provided with conveying assembly for limiting fireproof cable, the upper surface of cutting seat is provided with arc slot, the rear side of cutting assembly is provided with material blocking assembly, the material blocking assembly includes baffle and threaded rod, both sides of baffle end are fixedly installed with slide bar, the side of cutting seat is provided with sliding slot, two The slide bar is movably penetrated in sliding slot, sliding block is slidably installed in slide bar. The utility model is rotated by rotating torsion block and drives threaded rod to rotate, sliding block is moved in sliding slot, and then the distance between baffle and cutting assembly is adjusted, the accurate setting of the cutting length of fireproof cable is realized, in each cutting, cable end and baffle contact trigger cutting, ensure that the length of cable is consistent each time.
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Description

Technical Field

[0001] This utility model belongs to the field of cable cutting technology, and more specifically, it relates to a cutting device for fireproof cables. Background Technology

[0002] Fire-resistant cables, with their excellent flame-retardant properties, high-temperature resistance, and good electrical insulation, have become a key material for ensuring the safe and stable operation of power systems.

[0003] For example, a Chinese patent discloses a cutting device for fire-resistant cables, publication number CN220387765U, which "includes a fixed frame body, a support plate fixed on one side of the fixed frame body, the top of the support plate being arc-shaped, and a cable body being disposed on the top of the support plate. During the conveying of the cable body, the cable body is constrained by guide grooves on two guide plates. Then, when one end of the cable body extends to the inner wall of one side of the limiting frame, the cutting blade is driven by the extension and retraction of a cylinder to cut the cable body, thereby ensuring that the length of each cut is the same." However, in actual use, the distance between the baffle and the cutting component cannot be adjusted, and the precise setting of the cutting length of the fire-resistant cable cannot be achieved, resulting in poor applicability.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a cutting device for fireproof cables in order to achieve a more practical purpose. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a cutting device for fire-resistant cables, which is achieved by the following specific technical means:

[0006] A cutting device for fire-resistant cables includes a cutting base, a cutting assembly for cutting the fire-resistant cable is provided on the rear side of the cutting base, and a conveying assembly for limiting the movement of the fire-resistant cable is provided on the front side of the cutting base. An arc-shaped groove is formed on the upper surface of the cutting base. A baffle assembly is provided on the rear side of the cutting assembly. The baffle assembly includes a baffle plate and a threaded rod. Sliding rods are fixedly installed on both sides of the end of the baffle plate. A sliding groove is formed on the side of the cutting base. Two sliding rods are movably inserted into the sliding groove. A slider is slidably installed in the sliding rod. Both sliding rods are fixedly connected to the slider. A threaded rod is rotatably installed in the sliding groove. The threaded rod passes through the middle of the slider and is threadedly connected to the slider, for adjusting the distance between the baffle plate and the cutting assembly.

[0007] Furthermore, the threaded rod is located on both sides of the slide rod, and a torsion block is fixedly installed at the front end of the threaded rod.

[0008] Furthermore, limit plates are fixedly installed on both sides of the upper end of the cutting seat, and limit grooves are opened on the opposite sides of the two limit plates.

[0009] Furthermore, the cutting assembly includes a bracket, a cutting blade, and a cylinder. The bracket is fixedly installed on the upper end of the cutting seat, the cutting blade is located inside the bracket, and the cylinder is fixedly installed on the upper end of the bracket. The telescopic rod of the cylinder passes through the upper end of the bracket and is fixedly connected to the cutting blade.

[0010] Furthermore, the surface of the cutting blade is provided with a cutting hole, and ear blocks are fixedly installed on both ends of the cutting blade. Two rectangular grooves are provided on the inner surface of the bracket, and the two ear blocks are slidably installed in the rectangular grooves respectively.

[0011] Furthermore, the conveying assembly includes two mounting plates and a drive wheel. Both mounting plates are fixedly mounted on the upper end of the cutting seat and located on both sides of the arc-shaped groove. A connecting shaft is fixedly passed through the middle of the drive wheel, and the two ends of the connecting shaft are rotatably connected to the mounting plates respectively. The outer surface of the drive wheel has a recessed groove adapted to the fireproof cable.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. By rotating the torsion block to drive the threaded rod to rotate, the slider moves in the groove, thereby adjusting the distance between the baffle and the cutting component, so as to achieve precise setting of the cutting length of the fireproof cable. Each time the cable end contacts the baffle, the cutting is triggered, ensuring that the cable length cut each time is consistent.

[0014] Second, the groove on the outside of the drive wheel of the conveying component fits tightly against the outer surface of the fireproof cable, increasing the contact area and friction. Together with the arc groove and the limiting groove on the limiting plate, the cable is limited and guided from multiple angles, so that the cable remains stable during the conveying process and ensures that the cable can be accurately conveyed to the cutting position. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall fireproof cable cutting device of this utility model.

[0016] Figure 2 This is a schematic diagram of the cutting seat of this utility model cut open.

[0017] Figure 3 This is a schematic diagram of the cutting component of this utility model.

[0018] Figure 4 This is a schematic diagram of the conveying component of this utility model.

[0019] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0020] 1. Cutting seat; 11. Arc groove; 12. Slide groove; 2. Cutting assembly; 21. Bracket; 22. Cutting blade; 23. Cylinder; 24. Cutting hole; 25. Rectangular groove; 26. Ear block; 3. Baffle; 31. Slide rod; 32. Slider; 4. Threaded rod; 41. Torsion block; 5. Conveying assembly; 51. Mounting plate; 52. Drive wheel; 53. Groove; 54. Connecting shaft; 6. Limiting plate; 61. Limiting groove. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example:

[0025] As attached Figure 1 To be continued Figure 4 As shown:

[0026] This utility model provides a cutting device for fireproof cables, including a cutting seat 1. A cutting assembly 2 for cutting fireproof cables is provided on the rear side of the cutting seat 1, and a conveying assembly 5 for limiting the movement of the fireproof cables is provided on the front side of the cutting seat 1. An arc-shaped groove 11 is formed on the upper surface of the cutting seat 1. A baffle assembly is provided on the rear side of the cutting assembly 2. The baffle assembly includes a baffle 3 and a threaded rod 4. Sliding rods 31 are fixedly installed on both sides of the end of the baffle 3. A sliding groove 12 is formed on the side of the cutting seat 1, and both sliding rods 31 are movably inserted through the sliding groove 12. A sliding component is slidably installed within the sliding rod 31. The slider 32 and two sliding rods 31 are fixedly connected to the slider 32. A threaded rod 4 is rotatably installed in the groove 12. The threaded rod 4 passes through the middle of the slider 32 and is threadedly connected to the slider 32. Since the threaded rod 4 is threadedly connected to the slider 32 and the two sliding rods 31 are fixed to the slider 32, and the sliding rods 31 move through the groove 12 on the side of the cutting seat 1, the slider 32 will move smoothly in the groove 12 when the threaded rod 4 rotates. This will drive the baffle 3 to move along the axial direction of the sliding rod 31, accurately adjust the distance between the baffle 3 and the cutting component 2, and complete the preset cutting length.

[0027] The threaded rod 4 is located on both sides of the slide rod 31. A torsion block 41 is fixedly installed at the front end of the threaded rod 4 to facilitate the rotation of the threaded rod 4.

[0028] Limiting plates 6 are fixedly installed on both sides of the upper end of the cutting seat 1. Limiting grooves 61 are opened on the opposite sides of the two limiting plates 6. The limiting grooves 61 play an auxiliary positioning role, limiting the cable from deviating or shaking during the transportation process, and ensuring that the cable is transported smoothly along a straight line.

[0029] The cutting assembly 2 includes a bracket 21, a cutting blade 22, and a cylinder 23. The bracket 21 is fixedly installed on the upper end of the cutting base 1. The cutting blade 22 is located inside the bracket 21. The cylinder 23 is fixedly installed on the upper end of the bracket 21. The telescopic rod of the cylinder 23 passes through the upper end of the bracket 21 and is fixedly connected to the cutting blade 22. The cutting assembly 2 is used to cut cables.

[0030] The surface of the cutting blade 22 is provided with a cutting hole 24. Lugs 26 are fixedly installed on both ends of the cutting blade 22. Two rectangular grooves 25 are provided on the inner surface of the bracket 21. The two lugs 26 are slidably installed in the rectangular grooves 25 respectively. The lugs 26 on both sides of the cutting blade 22 slide in the rectangular grooves 25 on the inner side of the bracket 21, providing guidance and limiting for the movement of the cutting blade 22, ensuring that the cutting blade 22 moves vertically downward, accurately passes through the cutting hole 24, and cuts the fireproof cable.

[0031] The conveying assembly 5 includes two mounting plates 51 and a drive wheel 52. Both mounting plates 51 are fixedly mounted on the upper end of the cutting seat 1 and located on both sides of the arc groove 11. A connecting shaft 54 ​​is fixedly passed through the middle of the drive wheel 52. A motor can be mounted on the mounting plate 51, and the output shaft of the motor is fixedly connected to the connecting shaft 54 ​​to drive the connecting shaft 54 ​​to rotate. Both ends of the connecting shaft 54 ​​are rotatably connected to the mounting plate 51. The outer surface of the drive wheel 52 has a recessed groove 53 that is compatible with the fireproof cable. The design of the groove 53 increases the contact area with the cable surface, ensuring that the drive wheel 52 can effectively drive the cable to move when it rotates.

[0032] The working principle of this embodiment:

[0033] Step 1: Before starting the equipment to cut the fireproof cable, the operator needs to rotate the torsion block 41 according to the required cable cutting length. Since the threaded rod 4 is threadedly connected to the slider 32, and the two sliders 31 are fixed to the slider 32, and the sliders 31 move through the groove 12 on the side of the cutting seat 1, when the threaded rod 4 is rotated, the slider 32 will move smoothly in the groove 12, thereby driving the baffle 3 to move along the axis of the slider 31, accurately adjusting the distance between the baffle 3 and the cutting component 2, and completing the preset cutting length.

[0034] Step 2: After the preparation is complete, insert one end of the fireproof cable into the arc-shaped groove 11 from the front of the device. The shape of the arc-shaped groove 11 is adapted to the cross-section of the fireproof cable, which can initially stabilize the position of the cable. At this time, the outer surface of the fireproof cable is closely fitted with the groove 53 on the outside of the drive wheel 52 of the conveying component 5. The design of the groove 53 increases the contact area with the cable surface, ensuring that the drive wheel 52 can effectively drive the cable to move when it rotates. At the same time, the fireproof cable is also fitted with the limiting groove 61 on the opposite side of the two limiting plates 6. The limiting groove 61 plays an auxiliary positioning role, limiting the cable from deviating or shaking during the conveying process, and ensuring that the cable is conveyed smoothly along a straight line.

[0035] Step 3: When the external drive device is started, the drive wheel 52 begins to rotate. Under the action of friction, the fireproof cable is conveyed along the arc groove 11 towards the cutting assembly 2. The cable continues to move forward until the end contacts the surface of the baffle 3. At this time, the cable is in place. Then, the operator starts the cylinder 23. The telescopic rod of the cylinder 23 extends downward, driving the fixedly connected cutting blade 22 to move down. The lugs 26 on both sides of the cutting blade 22 slide in the rectangular groove 25 inside the bracket 21, providing guidance and limiting for the movement of the cutting blade 22, ensuring that the cutting blade 22 moves vertically downward, accurately passes through the cutting hole 24, and cuts the fireproof cable. Since the position of the baffle 3 has been adjusted in advance, the cutting blade 22 cuts each time the end of the cable contacts the baffle 3, ensuring that the length of the fireproof cable cut each time is consistent.

[0036] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A cutting device for fire-resistant cables, comprising a cutting base (1), characterized in that: The cutting seat (1) is provided with a cutting component (2) for cutting fireproof cables on its rear side, and a conveying component (5) for limiting the fireproof cables is provided on the front side of the cutting seat (1). An arc groove (11) is provided on the upper surface of the cutting seat (1). A baffle component is provided on the rear side of the cutting component (2). The baffle component includes a baffle (3) and a threaded rod (4). Among them, slide rods (31) are fixedly installed on both sides of the end of the baffle (3), and a slide groove (12) is opened on the side of the cutting seat (1). Both slide rods (31) are movably inserted in the slide groove (12), and a slider (32) is slidably installed in the slide rod (31). Both slide rods (31) are fixedly connected to the slider (32). A threaded rod (4) is rotatably installed in the groove (12). The threaded rod (4) passes through the middle of the slider (32) and is threadedly connected to the slider (32) to adjust the distance between the baffle (3) and the cutting assembly (2).

2. The cutting device for fire-resistant cables as described in claim 1, characterized in that: The threaded rod (4) is located on both sides of the slide rod (31), and a torsion block (41) is fixedly installed at the front end of the threaded rod (4).

3. The cutting device for fire-resistant cables as described in claim 2, characterized in that: Limiting plates (6) are fixedly installed on both sides of the upper end of the cutting seat (1), and limiting grooves (61) are opened on the opposite sides of the two limiting plates (6).

4. The fire-resistant cable cutting device as described in claim 3, characterized in that: The cutting assembly (2) includes a bracket (21), a cutting blade (22), and a cylinder (23). The bracket (21) is fixedly installed on the upper end of the cutting seat (1). The cutting blade (22) is located inside the bracket (21). The cylinder (23) is fixedly installed on the upper end of the bracket (21). The telescopic rod of the cylinder (23) passes through the upper end of the bracket (21) and is fixedly connected to the cutting blade (22).

5. The cutting device for fire-resistant cables as described in claim 4, characterized in that: The surface of the cutting blade (22) is provided with a cutting hole (24), and ear blocks (26) are fixedly installed on both ends of the cutting blade (22). Two rectangular grooves (25) are opened on the inner surface of the bracket (21), and the two ear blocks (26) are slidably installed in the rectangular grooves (25).

6. The cutting device for fire-resistant cables as described in claim 5, characterized in that: The conveying assembly (5) includes two mounting plates (51) and a drive wheel (52). The two mounting plates (51) are fixedly mounted on the upper end of the cutting seat (1) and located on both sides of the arc groove (11). A connecting shaft (54) is fixedly passed through the middle of the drive wheel (52). The two ends of the connecting shaft (54) are rotatably connected to the mounting plates (51) respectively. The outer surface of the drive wheel (52) has a groove (53) that is compatible with the fireproof cable.