A small portable engineering cable stripping tool

Abstract

The application belongs to the technical field of wire stripping devices, and provides a small portable engineering armored cable stripping tool, which comprises a rack, the top of the rack is provided with a guide rail, the two ends of the guide rail are respectively provided with a fixing part and a straightening part, a cable is fixedly connected between the fixing part and the straightening part in a direction parallel to the guide rail; a cutting part comprises a shell, the shell is detachably and slidably connected to the guide rail through a sliding seat assembly, the cable penetrates through the shell, two groups of transverse cutting assemblies for stripping the cable are arranged in the shell, the two transverse cutting assemblies are symmetrically arranged on the two sides of the cable, a positioning device is further arranged in the shell, the positioning device and the transverse cutting assemblies are sequentially arranged along the moving direction of the shell, and the positioning device is used for enabling the cable to move along a linear trajectory relative to the transverse cutting assemblies. The application can effectively assist the staff in high-precision stripping of the engineering armored cable, and improves the stripping efficiency and quality.

Description

Technical Field

[0001] This invention belongs to the technical field of wire stripping devices, and particularly relates to a small, portable engineering armored cable stripping tool. Background Technology

[0002] Electricity, as a vital power source in modern society, provides strong support for my country's economic development. Major industries such as manufacturing, agriculture, and services all rely on electricity as a basic energy source, and the transmission of electricity depends on various types of conductors. Armored power cables are widely used in power transmission and distribution systems in factories, mines, high-speed railways, and densely populated cities, and their application scale continues to expand with the rapid development of these fields. An armored cable is a robust assembly made by adding a conductive metallic material to an insulated metal sheath. Its structure generally includes five parts: the conductor core, the shielding layer, the insulation layer, the armor layer, and the protective layer.

[0003] Compared to ordinary power cables, armored cables have an additional armor layer, which significantly enhances the cable's mechanical strength, improves its resistance to corrosion and external damage, thereby greatly improving the safety and reliability of power transmission and reducing later maintenance costs. However, the presence of the armor layer also increases the overall stiffness of the cable, resulting in a larger bending radius and posing some challenges to its installation.

[0004] In the process of power transmission, substations play a crucial role in voltage conversion and are a key link in the power transmission and distribution system. During the construction and operation of substations, armored power cables are widely used for wiring due to the high voltage and frequent human activity. Substations contain numerous electrical devices and complex wiring; traditional manual wire stripping methods are inefficient, physically demanding for workers, and suffer from insufficient precision and cable damage. Existing wire stripping equipment suffers from poor adaptability, insufficient stripping precision, low automation, inadequate safety, and complex maintenance when handling cables of different specifications, materials, or armor structures. Summary of the Invention

[0005] The purpose of this invention is to provide a small, portable stripping tool for armored cables to solve the above-mentioned problems and achieve high-precision stripping by adapting to various types of armored cables.

[0006] To achieve the above objectives, the present invention provides the following solution: a small, portable engineering armored cable stripping tool, comprising: A frame, the top of which is provided with a guide rail, and the two ends of the guide rail are respectively provided with a fixing part and a straightening part, and the cable is fixedly connected between the fixing part and the straightening part in a direction parallel to the guide rail; The cutting section includes a housing, which is detachably slidably connected to the guide rail via a sliding seat assembly. A cable passes through the housing. Two sets of cross-cutting assemblies for stripping the cable are provided inside the housing. The two cross-cutting assemblies are symmetrically arranged on both sides of the cable. A positioning device is also provided inside the housing. The positioning device and the cross-cutting assemblies are arranged sequentially along the moving direction of the housing. The positioning device is used to make the cable move along a straight trajectory relative to the cross-cutting assemblies.

[0007] Preferably, the cross-cutting assembly includes a cutting housing that is horizontally slidably connected within the housing. A circular cutter and two sets of limiting rings are vertically rotatably connected within the cutting housing. The two limiting rings are respectively coaxially arranged on both sides of the circular cutter. The outer diameter of the circular cutter is larger than the outer diameter of the limiting rings. The limiting rings are in contact with the cable. A rotation drive component for driving the circular cutter to rotate is provided within the cutting housing. A clamping drive assembly for pushing the cutting housing to move in the direction of the cable is provided between the cutting housing and the housing.

[0008] Preferably, the clamping drive assembly includes a plurality of first compression springs, the two ends of which are respectively fixedly connected between the cutting housing and the housing. The first compression springs are used to push the cutting housing toward the cable direction. A wire inlet switch is provided between the cutting housing and the housing. The wire inlet switch is used to separate the two sets of cutting housings, so that the cable can be passed between the two circular cutters in the early stage of the wire stripping operation.

[0009] Preferably, the input switch includes two sets of tensioning blocks, each of which is fixedly connected to the top of one of the two cutting housings. A mounting base is fixedly connected to the top of each housing, and a wedge is slidably connected within the mounting base along the direction of the guide rail. The two opposite sidewalls of the wedge abut against the two tensioning blocks, respectively, for pushing the tensioning blocks outward from the housing. One end of a rope is fixedly connected to the top of the wedge, and a guide wheel is rotatably connected within the mounting base. The other end of the rope passes around the guide wheel and is fixedly connected to a switch. The switch is hinged to the top of the mounting base, and the switch pulls the wedge to slide via the rope. A return spring abuts between the wedge and the mounting base.

[0010] Preferably, the rotation drive includes a motor and a gear pair disposed within the cutting housing, the motor being connected to the circular cutter via the gear pair.

[0011] Preferably, the positioning device includes a second pressure roller frame fixedly connected to the housing and a first pressure roller frame horizontally slidably connected to the housing. Two sets of upper pressure rollers are rotatably connected inside the second pressure roller frame, and two sets of lower pressure rollers are rotatably connected inside the first pressure roller frame. A spacing adjustment component is provided between the first pressure roller frame and the housing. The spacing adjustment component is used to adjust the distance between the second pressure roller frame and the first pressure roller frame, so that the cable is clamped between the two upper pressure rollers and the two lower pressure rollers.

[0012] Preferably, the circumferential sidewall of the upper pressure roller is recessed, and the circumferential sidewall of the lower pressure roller is cylindrical.

[0013] Preferably, the spacing adjustment component includes a fixing plate fixedly connected inside the housing. The fixing plate is located on the side of the first pressure roller frame away from the second pressure roller frame. A tension adjustment screw is horizontally rotatably connected to the side of the first pressure roller frame close to the fixing plate. The tension adjustment screw passes through the fixing plate and is threadedly connected to the fixing plate.

[0014] Preferably, the fixing part includes a first fixing base fixedly connected to the top of the frame. The first fixing base is disposed at one end of the guide rail near the cross-cutting component. An upper clamping plate is disposed on the top of the first fixing base. A first adjusting screw for adjusting the spacing is disposed between the upper clamping plate and the first fixing base. The cable is clamped between the upper clamping plate and the first fixing base.

[0015] Preferably, the straightening part includes a second fixed base fixedly connected to the top of the frame. The second fixed base is disposed at one end of the guide rail near the positioning device. A movable slide plate is slidably connected to the second fixed base. A tensioning screw for adjusting the distance between the movable slide plate and the first fixed base is disposed on the second fixed base. A second clamping member is disposed at the top of the movable slide plate for clamping the end of the cable away from the first fixed base.

[0016] Compared with the prior art, the present invention has the following advantages and technical effects: 1. This invention straightens and positions the cable along the guide rail by using a fixed base and a straightening part, so that the cutting part can form a stable processing reference line on the cable when moving along the guide rail, forming a flat cut. This solves the bending problem caused by the cable's own weight or internal stress, and ensures the straightness and depth uniformity during long-distance stripping.

[0017] 2. This invention uses a positioning device to precisely guide and clamp the cable before it enters the area of ​​the cross-cutting components, ensuring the cable's stability. Then, two sets of cross-cutting components are used to cut the cable, thus forming a working sequence of positioning before cutting. This ensures that the cutting action is always performed on a stabilized cable, greatly improving the accuracy and reliability of the cutting.

[0018] 3. The armored cable stripping tool of the present invention has a reasonable structure and is easy to operate. It can effectively assist workers in cutting and stripping armored cables, improve stripping efficiency and quality, and greatly reduce the labor intensity of workers. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the armored cable stripping tool of the present invention; Figure 2 This is a schematic diagram of the structure of the fixing part of the armored cable stripping tool of the present invention; Figure 3 This is a schematic diagram of the cutting section of the armored cable stripping tool of the present invention; Figure 4 This is a top view of the armored cable stripping tool of the present invention after the top of the cutting section has been removed; Figure 5 This is a front view of the cross-cutting component of the cutting part of the armored cable stripping tool of the present invention; Figure 6 This is a schematic diagram of the inlet switch of the armored cable stripping tool of the present invention; Figure 7 This is a top view of the structure of the spacing adjustment component of the armored cable stripping tool of the present invention; Figure 8 This is a front view schematic diagram of the cutting section of the armored cable stripping tool of the present invention; Figure 9 This is a schematic diagram of the straightening section of the armored cable stripping tool of the present invention.

[0021] The components include: 1. Fixing part; 2. Cutting part; 3. Fixing base; 4. Guide rail; 5. Straightening part; 6. Frame; 7. Casters; 8. First adjusting screw; 9. Upper clamping plate; 10. First fixed base; 11. Inlet switch; 12. Housing; 13. Cutting housing; 14. Positioning device; 15. Handle; 16. Battery box; 17. Motor; 18. Gear pair; 19. Limiting ring; 20. Circular cutter; 21. Tensioning support block; 22. Middle... 23. Fixed frame; 24. First compression spring; 25. Wire clamping block; 26. Wedge block; 27. Switch; 28. Fixed wire hole; 29. ​​Guide wheel; 30. Reset spring; 31. First pressure roller frame; 32. Lower pressure roller; 33. Tension adjusting screw; 34. Fixed plate; 35. Second compression spring; 36. Intermediate block; 37. Upper pressure roller; 38. Second pressure roller frame; 39. Moving slide plate; 40. Second fixed base; 41. Tensioning screw. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Reference Figures 1-9 This invention provides a small, portable engineering armored cable stripping tool, comprising: The frame 6 has a guide rail 4 on its top. The two ends of the guide rail 4 are respectively provided with a fixing part 1 and a straightening part 5. The cable is fixedly connected between the fixing part 1 and the straightening part 5 in a direction parallel to the guide rail 4. The cutting section 2 includes a housing 12, which is detachably and slidably connected to the guide rail 4 via a sliding seat assembly. The cable passes through the housing 12. Two sets of cross-cutting components for stripping the cable are provided inside the housing 12. The two cross-cutting components are symmetrically arranged on both sides of the cable. A positioning device 14 is also provided inside the housing 12. The positioning device 14 and the cross-cutting components are arranged sequentially along the moving direction of the housing 12. The positioning device 14 is used to make the cable move relative to the cross-cutting components along a straight trajectory.

[0025] The top of the frame 6 is equipped with a guide rail 4, providing a precise linear motion trajectory for the cutting section 2. The fixing section 1 and the straightening section 5 are located at both ends of the guide rail 4, working together to straighten and fix the cable, ensuring that the cable remains parallel to the guide rail 4 and establishing a stable processing benchmark. The cutting section 2 is detachably connected to the guide rail 4 via a sliding seat assembly, allowing it to move smoothly along the cable direction. The main function of the positioning device 14 is to guide and clamp the cable before cutting, restricting its radial degree of freedom and ensuring that the cable moves along a linear trajectory. Two sets of symmetrical transverse cutting components cut in simultaneously from both sides, balancing the forces and achieving precise cutting of the armor layer. This invention simplifies the complex wire stripping process into a stable linear sliding cut through the close cooperation of each component, significantly improving work efficiency and reducing labor intensity while ensuring wire stripping accuracy and protecting the internal wire core.

[0026] In a further optimized design, the sliding seat assembly includes a fixed seat 3 that is slidably connected to the guide rail 4. The top of the fixed seat 3 has a groove, and the bottom of the housing 12 is fixedly connected to a battery box 16, which is adapted to the groove.

[0027] In this embodiment, the entire cutting section 2 can be replaced by quickly connecting and separating the battery box 16 and the fixing base 3. This design allows for the rapid replacement of the entire cutting section 2 according to different cable specifications, and can adapt to the stripping work of various types of armored cables.

[0028] In a further optimized design, the cross-cutting assembly includes a cutting housing 13 that is horizontally slidably connected within the housing 12. A circular cutter 20 and two sets of limiting rings 19 are vertically rotatably connected within the cutting housing 13. The two limiting rings 19 are coaxially arranged on both sides of the circular cutter 20. The outer diameter of the circular cutter 20 is larger than the outer diameter of the limiting rings 19. The limiting rings 19 are in contact with the cable. A rotation drive component for driving the circular cutter 20 to rotate is provided within the cutting housing 13. A clamping drive component for pushing the cutting housing 13 to move in the direction of the cable is provided between the cutting housing 13 and the housing 12.

[0029] In a further optimized design, a middle fixing frame 22 is provided on one side of the housing 12. The middle fixing frame 22 has an opening to facilitate the armored cable to pass through and enter the housing 12.

[0030] In a further optimized design, a handle 15 is fixedly connected to the bottom of the housing 12. The main function of the handle 15 is to facilitate the operator to push the housing 12 along the guide rail 4 to complete the wire stripping work.

[0031] like Figures 3-5As shown, the two sets of circular cutters 20 adopt a symmetrical layout design, the purpose of which is to cut the cable symmetrically along the diameter direction. After cutting, it only needs to be cut at the stripped length. The main function of the limiting ring 19 is to precisely limit the cutting depth of the circular cutter 20, ensuring that the circular cutter 20 can completely cut through the outer layer without damaging the internal wire core.

[0032] The scheme is further optimized. The clamping drive assembly includes multiple first compression springs 23. The two ends of the multiple first compression springs 23 are respectively fixedly connected between the cutting housing 13 and the housing 12. The first compression springs 23 are used to push the cutting housing 13 towards the cable direction. A wire inlet switch 11 is provided between the cutting housing 13 and the housing 12. The wire inlet switch 11 is used to separate the two sets of cutting housings 13, so that the cable can be passed between the two circular cutters 20 at the beginning of the wire stripping operation.

[0033] Further optimization of the scheme: the incoming line switch 11 includes two sets of tensioning blocks 21. The two tensioning blocks 21 are fixedly connected to the top of the two cutting housings 13 respectively. The top of the housing 12 is fixedly connected to a mounting base. A wedge 25 is slidably connected in the mounting base along the direction of the guide rail 4. The two opposite side walls of the wedge 25 abut against the two tensioning blocks 21 respectively, for pushing the tensioning blocks 21 to the outside of the housing 12. One end of a rope is fixedly connected to the top of the wedge 25. A guide wheel 28 is rotatably connected in the mounting base. The other end of the rope passes around the guide wheel 28 and is fixedly connected to a switch 26. The switch 26 is hinged to the top of the mounting base. The switch 26 pulls the wedge 25 to slide through the rope. A return spring 29 abuts between the wedge 25 and the mounting base.

[0034] In a further optimized design, a wire clamping block 24 is fixedly connected to the bottom of the wedge 25 to fix the wire to the wedge 25, and a wire fixing hole 27 is provided on the switch 26 to fix the wire to the switch 26.

[0035] like Figures 4-6 As shown, the operator pulls switch 26 upwards, which pulls wedge 25 backwards via a cable. During this movement, wedge 25 pushes tensioning blocks 21 outwards through its wedge-shaped surfaces on both sides, causing the tensioning blocks 21 to move the cutting housing 13 outwards, increasing the distance between the two circular cutters 20. Simultaneously, the first compression spring 23 is compressed, facilitating the insertion of the armored cable into the housing 12. After the cable is inserted, switch 26 is released, and the return spring 29 pushes wedge 25 forward to reset. Simultaneously, the cutting housing 13 moves inwards under the pressure of the first compression spring 23, causing the two sets of circular cutters 20 to press firmly against the cable sheath for subsequent cable cutting.

[0036] The design is further optimized so that the rotation drive includes a motor 17 and a gear pair 18 disposed in the cutting housing 13. The motor 17 is connected to the circular cutter 20 through the gear pair 18.

[0037] In this embodiment, the battery in the battery box 16 powers the motor 17. The gear pair 18 uses three gears to drive the motor 17 to rotate the circular cutter 20.

[0038] In a further optimized design, the positioning device 14 includes a second pressure roller frame 37 fixedly connected inside the housing 12 and a first pressure roller frame 30 horizontally slidably connected inside the housing 12. Two sets of upper pressure rollers 36 are rotatably connected inside the second pressure roller frame 37, and two sets of lower pressure rollers 31 are rotatably connected inside the first pressure roller frame 30. A spacing adjustment component is provided between the first pressure roller frame 30 and the housing 12. The spacing adjustment component is used to adjust the distance between the second pressure roller frame 37 and the first pressure roller frame 30, so that the cable is clamped between the two upper pressure rollers 36 and the two lower pressure rollers 31.

[0039] Further optimization of the design involves adopting a concave sidewall for the upper pressure roller 36 and a cylindrical sidewall for the lower pressure roller 31, which can better accommodate small-diameter cables.

[0040] In a further optimized design, the spacing adjustment component includes a fixing plate 33 fixedly connected inside the housing 12. The fixing plate 33 is located on the side of the first pressure roller frame 30 away from the second pressure roller frame 37. The side of the first pressure roller frame 30 closest to the fixing plate 33 is horizontally rotatably connected to a tension adjustment screw 32. The tension adjustment screw 32 passes through the fixing plate 33 and is threadedly connected to the fixing plate 33.

[0041] In a further optimized design, a middle block 35 is fixedly connected to the second pressure roller frame 37. The middle block 35 is located between the two upper pressure rollers 36 and has a through hole in the middle to facilitate the passage of cables.

[0042] In a further optimized design, multiple sliding rods are horizontally fixedly connected inside the housing 12. The first pressure roller frame 30 is slidably connected to the multiple sliding rods. Multiple second compression springs 34 abut against the first pressure roller frame 30 and the second pressure roller frame 37. The second compression springs 34 pass through the sliding rods.

[0043] like Figure 3 , Figure 7 and Figure 8 As shown, by rotating the tension adjusting screw 32, the distance between the upper pressure roller 36 and the lower pressure roller 31 can be adjusted well, so that the upper pressure roller 36 and the lower pressure roller 31 can maintain tight contact with the armored cable.

[0044] The solution is further optimized. The fixing part 1 includes a first fixing base 10 fixedly connected to the top of the frame 6. The first fixing base 10 is located at one end of the guide rail 4 near the cross-cutting component. An upper clamping plate 9 is provided on the top of the first fixing base 10. A first adjusting screw 8 for adjusting the spacing is provided between the upper clamping plate 9 and the first fixing base 10. The cable is clamped between the upper clamping plate 9 and the first fixing base 10.

[0045] like Figure 1 and Figure 2 As shown, by tightening the first adjusting screw 8, it pushes the upper clamping plate 9 downward, which, together with the first fixed base 10, squeezes the engineering armored cable, preventing it from moving and ensuring its stability.

[0046] In a further optimized design, the straightening unit 5 includes a second fixed base 39 fixedly connected to the top of the frame 6. The second fixed base 39 is located at one end of the guide rail 4 near the positioning device 14. A movable slide plate 38 is slidably connected to the second fixed base 39. A tensioning screw 40 is provided on the second fixed base 39 for adjusting the distance between the movable slide plate 38 and the first fixed base 10. A second clamping member is provided on the top of the movable slide plate 38 for clamping the end of the cable away from the first fixed base 10.

[0047] like Figure 9 As shown, the second clamping member adopts the same first adjusting screw 8 and upper clamping plate 9 structure as the fixing part 1. By tightening the first adjusting screw 8, it pushes the upper clamping plate 9 downward, which, together with the movable slide plate 38, squeezes the engineering armored cable to achieve clamping of the cable. By adjusting the tension screw 40, the movable slide plate 38 moves away from the first fixed base 10, stretching the engineering armored cable and keeping it in a straight state.

[0048] Further optimization of the design: multiple casters 7 are installed at the bottom of the frame 6, which can enable horizontal movement of the frame 6.

[0049] The working process of this embodiment is as follows: The fixing part 1 presses the engineering armored cable by adjusting the first adjusting screw 8 on the first fixing base 10, thereby fixing the engineering armored cable; the two sets of cutting shells 13 are separated by operating the switch 26, and the cable is inserted into the shell 12. The moving slide plate 38 presses and fixes the engineering armored cable by the first adjusting screw 8 on it, and straightens the armored cable by the tensioning screw 40. When the switch 26 is released, the cutting shell 13 presses the cable tightly against the circular cutter 20 under the elastic force of the first compression spring 23. At the same time, the tension adjusting screw 32 is adjusted so that the two pairs of upper pressure rollers 36 and lower pressure rollers 31 press the cable tightly under the preload of the second compression spring 34. After the cable is fixed, the shell 12 is pushed along the guide rail 4 so that the cable is completely stripped. This invention relates to a small, portable stripping tool for armored engineering cables. It has a reasonable structure and is easy to operate. It can effectively assist workers in cutting and stripping armored engineering cables, improving the efficiency and quality of stripping and greatly reducing the labor intensity of workers.

[0050] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 invention, and are not intended to 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 invention.

[0051] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A small, portable engineering armored cable stripping tool, characterized in that, include: A frame (6) is provided with a guide rail (4) at the top of the frame (6). A fixing part (1) and a straightening part (5) are provided at both ends of the guide rail (4). A cable is fixedly connected between the fixing part (1) and the straightening part (5) in a direction parallel to the guide rail (4). The cutting section (2) includes a housing (12), which is detachably slidably connected to the guide rail (4) via a sliding seat assembly. The cable passes through the housing (12). Two sets of cross-cutting components for stripping the cable are provided inside the housing (12). The two cross-cutting components are symmetrically arranged on both sides of the cable. A positioning device (14) is also provided inside the housing (12). The positioning device (14) and the cross-cutting components are arranged sequentially along the moving direction of the housing (12). The positioning device (14) is used to make the cable move along a straight trajectory relative to the cross-cutting components.

2. The small portable engineering armored cable stripping tool according to claim 1, characterized in that: The cross-cutting assembly includes a cutting housing (13) that is horizontally slidably connected within the housing (12). A circular cutter (20) and two sets of limiting rings (19) are vertically rotatably connected within the cutting housing (13). The two limiting rings (19) are coaxially arranged on both sides of the circular cutter (20). The outer diameter of the circular cutter (20) is larger than the outer diameter of the limiting rings (19). The limiting rings (19) are in contact with the cable. A rotation drive is provided within the cutting housing (13) for driving the circular cutter (20) to rotate. A clamping drive assembly is provided between the cutting housing (13) and the housing (12) for pushing the cutting housing (13) to move in the direction of the cable.

3. The small portable engineering armored cable stripping tool according to claim 2, characterized in that: The clamping drive assembly includes a plurality of first compression springs (23), the two ends of which are fixedly connected between the cutting housing (13) and the housing (12). The first compression springs (23) are used to push the cutting housing (13) toward the cable. A wire inlet switch (11) is provided between the cutting housing (13) and the housing (12). The wire inlet switch (11) is used to separate the two sets of cutting housings (13) so that the cable can be passed between the two circular cutters (20) in the early stage of the wire stripping operation.

4. The small portable engineering armored cable stripping tool according to claim 3, characterized in that: The incoming line switch (11) includes two sets of tensioning blocks (21). The two tensioning blocks (21) are fixedly connected to the top of the two cutting housings (13). The top of the housing (12) is fixedly connected to a mounting base. A wedge (25) is slidably connected in the mounting base along the direction of the guide rail (4). The two opposite sidewalls of the wedge (25) abut against the two tensioning blocks (21) respectively, and are used to push the tensioning blocks (21) to the outside of the housing (12). One end of a rope is fixedly connected to the top of the wedge (25). A guide wheel (28) is rotatably connected in the mounting base. The other end of the rope passes around the guide wheel (28) and is fixedly connected to a switch (26). The switch (26) is hinged to the top of the mounting base. The switch (26) pulls the wedge (25) to slide through the rope. A return spring (29) abuts between the wedge (25) and the mounting base.

5. A small portable engineering armored cable stripping tool according to claim 3, characterized in that: The rotation drive includes a motor (17) and a gear pair (18) disposed in the cutting housing (13), and the motor (17) is connected to the circular cutter (20) through the gear pair (18).

6. A small portable engineering armored cable stripping tool according to claim 1, characterized in that: The positioning device (14) includes a second pressure roller frame (37) fixedly connected in the housing (12) and a first pressure roller frame (30) horizontally slidably connected in the housing (12). Two sets of upper pressure rollers (36) are rotatably connected in the second pressure roller frame (37), and two sets of lower pressure rollers (31) are rotatably connected in the first pressure roller frame (30). A spacing adjustment component is provided between the first pressure roller frame (30) and the housing (12). The spacing adjustment component is used to adjust the distance between the second pressure roller frame (37) and the first pressure roller frame (30) so that the cable is clamped between the two upper pressure rollers (36) and the two lower pressure rollers (31).

7. A small portable engineering armored cable stripping tool according to claim 6, characterized in that: The circumferential sidewall of the upper pressure roller (36) is recessed, and the circumferential sidewall of the lower pressure roller (31) is cylindrical.

8. A small portable engineering armored cable stripping tool according to claim 6, characterized in that: The spacing adjustment component includes a fixing plate (33) fixedly connected inside the housing (12). The fixing plate (33) is located on the side of the first pressure roller frame (30) away from the second pressure roller frame (37). The side of the first pressure roller frame (30) close to the fixing plate (33) is horizontally rotatably connected to a tension adjustment screw (32). The tension adjustment screw (32) passes through the fixing plate (33) and is threadedly connected to the fixing plate (33).

9. A small portable engineering armored cable stripping tool according to claim 1, characterized in that: The fixing part (1) includes a first fixing base (10) fixedly connected to the top of the frame (6). The first fixing base (10) is disposed at one end of the guide rail (4) near the cross-cutting component. An upper clamping plate (9) is disposed on the top of the first fixing base (10). A first adjusting screw (8) for adjusting the spacing is disposed between the upper clamping plate (9) and the first fixing base (10). The cable is clamped between the upper clamping plate (9) and the first fixing base (10).

10. A small portable engineering armored cable stripping tool according to claim 9, characterized in that: The straightening part (5) includes a second fixed base (39) fixedly connected to the top of the frame (6). The second fixed base (39) is located at one end of the guide rail (4) near the positioning device (14). A movable slide plate (38) is slidably connected to the second fixed base (39). A tensioning screw (40) is provided on the second fixed base (39) for adjusting the distance between the movable slide plate (38) and the first fixed base (10). A second clamping member is provided on the top of the movable slide plate (38). The second clamping member is used to clamp the end of the cable away from the first fixed base (10).

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