A cutting device for railway signal cables

Abstract

The present invention belongs to the technical field of railway construction, and specifically is a railway signal cable cutting device, including a protective component, the protective component has a protective shell, a cutting cable is slidably connected to the axis of the protective shell, and torsion wheel sliders are symmetrically arranged on the front and rear sides of the outer surface of the protective shell, and the outer surface of the torsion wheel slider output shaft is rotatably connected to a propulsion column, and the propulsion column rotates by itself. The device can cut the cable through the internal blade component, replacing manual cutting to achieve a more convenient production effect, and when cutting the cable, the device will first perform a ring cutting work on the harder outer skin of the outer surface of the cable through the cutting saw blade of the rotary cutting device, and then directly cut off the cable core along the ring cut through the cutting component to achieve overall cutting work, thereby avoiding the problem of large wear caused by the tool cutting the cable at one time, thereby extending the service life of the tool.

Description

Technical Field

[0001] This invention belongs to the field of railway construction technology, specifically a cutting device for railway signal cables. Background Art

[0002] Railway signal cables are the signal transmission channels for signal equipment, acting as its "blood vessels and neural network," and are one of the key components. The installation work for signal cables mainly involves stripping the various sheath layers and wiring the cable cores as needed, and this process is ongoing throughout engineering construction, post-operation equipment maintenance, and emergency repairs.

[0003] Due to the harsh construction environment of railways, cables are usually cut manually in fixed quantities during installation. This results in low installation efficiency, and the success of the cutting work depends heavily on the experience of the construction workers, making it difficult for general operators to learn. Furthermore, the cutting work may pose a safety risk, so improvements are needed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this invention is as follows: a railway signal cable cutting device, comprising a protective component, the protective component having a protective shell, a cutting cable slidably connected to the axis of the protective shell, torsion wheel sliders symmetrically arranged on the front and rear sides of the outer surface of the protective shell, a pushing column rotatably connected to the outer surface of the output shaft of the torsion wheel slider, the pushing column generating rolling friction with the outer surface of the cutting cable through its own rotation, thereby driving the cutting cable to slide; a sheathing component is arranged in the middle of the inner wall of the protective shell, a straightening component is arranged on the back of the sheathing component, and a cutting component is arranged on the front of the sheathing component;

[0005] The cutting component includes a center wheel, and a circumferential cutting groove is formed on the side of the center wheel's inner cavity near the straightening component. Cutting devices are symmetrically arranged on the upper and lower sides of the circumferential cutting groove. A guide rail is provided on the outer surface of the center wheel. The cutting device includes a sliding cover plate, with an embedded pull block in the middle of the inner wall of the sliding cover plate. An inner rail slide is fixedly connected to the inner wall of the sliding cover plate near the straightening component. A cutting saw blade is rotatably connected to the bottom of the inner cavity of the inner rail slide. A motor is installed at the bottom of the inner cavity of the inner rail slide, which can drive the cutting saw blade to rotate at high speed via a rotating shaft, thereby cutting the outer sheath of the cable. The inner wall of the inner rail slide is rotatably connected to the inner wall of the circumferential cutting groove via a rotating wheel rod. The embedded pull block includes a counterweight block. The outer surface of the counterweight block is uniformly provided with insertion plates. A vacuum rod is rotatably connected to the axis at the bottom of the inner cavity of the counterweight block. A built-in motor is fixedly connected to the top of the vacuum rod. Pressure-sensitive pads are symmetrically arranged on both sides of the inner wall of the counterweight block. A compression pad is fixedly connected to the axis at the lower surface of the counterweight block. A hollow pull rod is slidably connected to the bottom of the inner wall of the compression pad. The bottom end of the hollow pull rod can slide along the inner wall of the circumferential groove through a self-rotating roller embedded in the circumferential groove.

[0006] Furthermore, the bottom end of the hollow pull rod is slidably connected to the outer surface of the center wheel via a guide rail, the outer surface of the counterweight block is fixedly connected to the inner cavity of the sliding cover plate via an insert plate, the outer surface of the inner rail slide is slidably connected to the outer surface of the center wheel, and the side of the center wheel is fixedly connected to the inner wall of the protective shell. Since there is a suitable pulley in the inner wall of the inner rail slide, and the rotating rod at the pulley shaft is inserted into the circumferential cutting groove, the inner rail slide always slides in close contact with the center wheel, ensuring that the cutting saw blade always cuts the outer sheath of the cable perpendicularly.

[0007] Furthermore, there are two cutting saw blades, the outer surfaces of which are pressed against the outer sheath of the cutting cable. There are also two pressure-sensitive inner pads, the outer surfaces of which are fixedly connected to the inner wall of the counterweight block. The outer surface of the built-in motor is also fixedly connected to the inner wall of the counterweight block. The outer surface of the torsion wheel slider is slidably connected to the outer surface of the protective shell via a horizontal groove. The outer surface of the push-rotating column is pressed against the front and rear sides of the outer surface of the cutting cable. The outer surface of the cutting cable is slidably connected to the inner cavity of the protective shell via a through-hole.

[0008] Furthermore, the correction component includes a support base, with a fitting side cylinder fixedly connected to the top of the support base. Pressure-sensitive contact cylinders are symmetrically arranged on the upper and lower sides of the inner cavity of the fitting side cylinder. A spring-loaded rod is slidably connected to the axis of each pressure-sensitive contact cylinder. Arc-shaped guide rods are symmetrically arranged on the left and right sides of the outer surface of each pressure-sensitive contact cylinder. When a pressure-sensitive contact cylinder is triggered by the spring-loaded rod, it emits an electrical signal. Through the connecting action of the arc-shaped guide rods, it is ensured that the pressure-sensitive contact cylinders on both sides can emit electrical signals synchronously. When the same spring-loaded rod is pressed twice consecutively, it indicates that the cutting saw blade has rotated one revolution around the center wheel, thus completing the circumferential cutting of the cable sheath. The outer surface of the pressure-sensitive contact cylinder is fixedly connected to the inner wall of the fitting side cylinder. The end of the spring-loaded rod away from the pressure-sensitive contact cylinder extends to the outside of the fitting side cylinder through a through-hole, and the end of the spring-loaded rod away from the pressure-sensitive contact cylinder presses against the outer surface of the cutting saw blade axis rod. The bottom of the support base is fixedly connected to the bottom of the inner wall of the protective shell.

[0009] Furthermore, the cutting component includes a control baffle. Vertical pull rods are slidably connected to both sides of the inner cavity of the control baffle, and an arc-shaped curved plate is fixedly connected to the top of each vertical pull rod. A cutting blade is fixedly connected to the inner wall of the arc-shaped curved plate. A clamping slide plate is symmetrically arranged on the outer surface of the control baffle away from the cutting component. A fine-tuning push plate is slidably connected to the top of the clamping slide plate, and an arc-shaped clamping plate is fixedly connected to the side of the fine-tuning push plate away from the clamping slide plate. The lower surface of the control baffle is fixedly connected to the bottom of the inner wall of the protective shell, and the bottom of the clamping slide plate is slidably connected to the bottom of the inner wall of the protective shell. The back of the clamping slide plate is slidably connected to the outer surface of the control baffle via a guide groove. The inner wall of the arc-shaped clamping plate presses against the outer surface of the cutting cable.

[0010] The beneficial effects of this invention are as follows:

[0011] 1. This device can cut cables using its internal blade components, replacing manual cutting and achieving more convenient production. When cutting cables, the device first uses the cutting saw blade of the rotating cutting equipment to perform a circumferential cut on the harder outer sheath of the cable. Then, the cutting component directly cuts the cable core along the circumferential cut, achieving a complete cut. This avoids the problem of excessive wear caused by cutting the cable with the blade in one go, thus extending the service life of the blade.

[0012] 2. Because the cutting blade lands vertically with its point of impact directly on the cable circumferential cutting position, the outer surface of the cutting blade will not be covered with a large amount of leather debris, thus maintaining good sharpness. Furthermore, when contacting the cable core, the side of the blade will not coat the cross-section of the core with rubber particles, preventing the cable core from having poor conductivity after cutting.

[0013] 3. The device's embedded pull block can control the compression pad cylinder to slide along the outer surface of the hollow pull rod by applying pressure, thereby adjusting the actual distance between the cutting saw blade and the cable. Since pressure-sensitive pads are symmetrically arranged on both sides of the inner wall of the counterweight block, the force feedback from the pressure-sensitive pads can accurately adjust the moving distance of the cutting saw blade, thus avoiding the problem of the cutting saw blade cutting off the internal battery core of the cable while cutting the cable sheath, and reducing the problem of damage to the cutting saw blade.

[0014] 4. When the cutting saw blade rotates around the center wheel, each time the side of the cutting saw blade passes the position of the protruding end of the spring pressure rod, it will trigger the pressure-sensitive contact cylinder by pressing the spring pressure rod. Then, the pressure-sensitive contact cylinder will emit an electrical signal to record the actual number of rotations of the internal cutting saw blade. This ensures that the cable sheath can be completely cut, avoiding the problem of incomplete circumferential cutting of the cable sheath, which would cause the cutting blade to have difficulty cutting and ultimately fail to completely cut the cable. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention;

[0016] Figure 2 is a cross-sectional view of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the peeling component of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the switching device of the present invention;

[0019] Figure 5 This is a cross-sectional view of the embedded pull block of the present invention;

[0020] Figure 6 This is a cross-sectional view of the corrective component of the present invention;

[0021] Figure 7 This is a schematic diagram of the structure of the cutting component of the present invention.

[0022] In the diagram: 1. Protective component; 11. Protective housing; 12. Cable cutting component; 13. Torsion wheel slider; 14. Propulsion column; 2. Scale cutting component; 21. Center wheel; 22. Circumferential cutting groove; 23. Cutting equipment; 24. Guide rail; 231. Sliding cover plate; 232. Inner rail slide bar; 233. Cutting saw blade; 234. Compression pad; 235. Hollow tie rod; 5. Embedded pull block; 51. Counterweight 52. Insertion plate; 53. Built-in motor; 54. Vacuum rotating rod; 55. Pressure-sensitive inner pad; 3. Correction component; 31. Support base; 32. Fitting side cylinder; 33. Pressure-sensitive contact cylinder; 34. Spring pressure rod; 35. Arc-shaped guide rod; 4. Cutting component; 41. Control baffle; 42. Arc-shaped bending plate; 43. Cutting blade; 44. Clamping slide plate; 45. Fine-tuning push plate; 46. Arc-shaped clamping plate. DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0024] Example 1, please refer to Figures 1-5 This invention provides a technical solution: a railway signal cable cutting device, including a protective component 1, the protective component 1 having a protective shell 11, a cutting cable 12 slidably connected at the axis of the protective shell 11, torsion wheel sliders 13 symmetrically arranged on the front and rear sides of the outer surface of the protective shell 11, a push column 14 rotatably connected to the outer surface of the output shaft of the torsion wheel slider 13, the push column 14 generating rolling friction with the outer surface of the cutting cable 12 by rotating, thereby driving the cutting cable 12 to slide; a sheathing component 2 is arranged in the middle of the inner wall of the protective shell 11, a straightening component 3 is arranged on the back of the sheathing component 2, and a cutting component 4 is arranged on the front of the sheathing component 2;

[0025] The cutting component 2 includes a center wheel 21. A circumferential cutting groove 22 is provided on the side of the inner cavity of the center wheel 21 near the straightening component 3. A cutting device 23 is symmetrically arranged on the upper and lower sides of the circumferential cutting groove 22. A guide rail 24 is provided on the outer surface of the center wheel 21. The cutting device 23 includes a sliding cover plate 231. An embedded pull block 5 is provided in the middle of the inner wall of the sliding cover plate 231. An inner rail slide 232 is fixedly connected to the side of the inner wall of the sliding cover plate 231 near the straightening component 3. A cutting saw blade 233 is rotatably connected to the bottom of the inner cavity of the inner rail slide 232. A motor is provided at the bottom of the inner cavity of the inner rail slide 232. The cutting saw blade 233 can be driven to rotate at high speed through a rotating shaft, thereby cutting the outer sheath of the cable 12. The inner wall of the inner rail slide 232 is rotatably connected to the inner wall of the circumferential cutting groove 22 through a rotating wheel rod. The embedded pull block 5 includes a counterweight block 51. The outer surface of the counterweight block 51 is evenly provided with plug-in plates 52. A vacuum rod 54 is rotatably connected to the axis at the bottom of the inner cavity of the counterweight block 51. The top of the vacuum rod 54 is fixedly connected to an internal motor 53. Pressure-sensitive inner pads 55 are symmetrically arranged on both sides of the inner wall of the counterweight block 51. A compression pad cylinder 234 is fixedly connected to the axis at the lower surface of the counterweight block 51. A hollow pull rod 235 is slidably connected to the bottom of the inner wall of the compression pad cylinder 234. The bottom end of the hollow pull rod 235 can slide along the inner wall of the annular groove 22 through the self-rotating roller embedded in the annular groove 22.

[0026] The bottom end of the hollow pull rod 235 is slidably connected to the outer surface of the center wheel 21 via the guide rail 24. The outer surface of the counterweight block 51 is fixedly connected to the inner cavity of the sliding cover plate 231 via the plug-in plate 52. The outer surface of the inner rail slide 232 is slidably connected to the outer surface of the center wheel 21, and the side of the center wheel 21 is fixedly connected to the inner wall of the protective shell 11. Since there is a suitable pulley in the inner wall of the inner rail slide 232, and the rotating rod at the pulley shaft is plugged into the circumferential cutting groove 22, the inner rail slide 232 always slides in close contact with the center wheel 21, ensuring that the cutting saw blade 233 always cuts the outer sheath of the cable 12 perpendicularly.

[0027] There are two cutting saw blades 233, the outer surfaces of which are pressed against the outer sheath of the cutting cable 12. There are also two pressure-sensitive inner pads 55, the outer surfaces of which are fixedly connected to the inner wall of the counterweight block 51. The outer surface of the built-in motor 53 is also fixedly connected to the inner wall of the counterweight block 51. The outer surface of the torsion wheel slider 13 is slidably connected to the outer surface of the protective shell 11 via a horizontal groove. The outer surface of the push column 14 is pressed against the front and rear sides of the outer surface of the cutting cable 12, and the outer surface of the cutting cable 12 is slidably connected to the inner cavity of the protective shell 11 via a through-hole.

[0028] When using this device to cut cables, pull the cable from the reel, then pass the cable end through the insertion port of the protective housing 11 from back to front. Adjust the torsion wheel sliders 13 on both sides so that the pushing rollers 14 on both sides can clamp the outer sheath of the cut cable 12 on both sides of the protective housing 11. Figure 1 As shown, the preparation work is complete.

[0029] The push column 14 transports the cutting cable 12 from back to front by rotating friction. When the cutting cable 12 passes the middle wheel 21, the outer sheath is cut first. At this time, the push columns 14 on both sides clamp the cutting cable 12 and cut the cable located inside the protective shell 11.

[0030] The built-in motor 53 inside the counterweight block 51 controls the air extraction rod 54 to rotate counterclockwise at high speed, drawing the gas inside the compression cylinder 234 into the counterweight block 51. At this time, the compression cylinder 234 slides down and retracts along the hollow pull rod 235, and pulls the sliding cover plate 231 down through the embedded pull block 5. At this time, the inner rail slide 232 on the other side of the sliding cover plate 231 slides against the outer surface of the center wheel 21 towards the cable side. Since the inner rail slide 232 slides relative to the wheel body at the bottom of the inner wall, the wheel body remains in a fixed position under the restriction of the shaft and the circumferential cutting groove 22. Then, the inner rail slide 232 controls the cutting saw blade 233 at the bottom to rotate at high speed, and then cuts through the outer sheath of the cable. The cutting saw blades 233 on both sides work synchronously. Then, the roller at the bottom of the hollow pull rod 235 slides along the inner wall of the guide rail 24, so that the upper and lower cutting devices 23 rotate around the guide rail 24 for one revolution, thereby completely cutting off the outer sheath of the cable.

[0031] Example 2, please refer to Figure 1-Figure 7 The present invention provides a technical solution: Based on the first embodiment, the correction component 3 includes a support base 31, a fitting side cylinder 32 is fixedly connected to the top of the support base 31, pressure-sensitive contact cylinders 33 are symmetrically arranged on the upper and lower sides of the inner cavity of the fitting side cylinder 32, a spring pressure rod 34 is slidably connected at the axis of the pressure-sensitive contact cylinder 33, and arc-shaped guide rods 35 are symmetrically arranged on the left and right sides of the outer surface of the pressure-sensitive contact cylinder 33. After the pressure-sensitive contact cylinder 33 is pressed and triggered by the spring pressure rod 34, it will emit an electrical signal once. Through the connecting action of the arc-shaped guide rods 35, it is ensured that the pressure-sensitive contact cylinders 33 on both sides can emit electrical signals synchronously. When the same spring pressure rod 34 is pressed twice in a row, it means that the cutting saw blade 233 has rotated around the center wheel 21 once, that is, the work of circumferentially cutting the outer sheath of the cable 12 is completed.

[0032] The outer surface of the pressure-sensitive contact cylinder 33 is fixedly connected to the inner wall of the fitting side cylinder 32. The end of the spring pressure rod 34 away from the pressure-sensitive contact cylinder 33 extends to the outside of the fitting side cylinder 32 through the through hole. The end of the spring pressure rod 34 away from the pressure-sensitive contact cylinder 33 is pressed against the outer surface of the cutting saw blade 233 shaft rod. The bottom of the support base 31 is fixedly connected to the bottom of the inner wall of the protective shell 11.

[0033] The cutting component 4 includes a control baffle 41. Vertical pull rods are slidably connected to the left and right sides of the inner cavity of the control baffle 41, and an arc-shaped curved plate 42 is fixedly connected to the top of the vertical pull rods. A cutting blade 43 is fixedly connected to the inner wall of the arc-shaped curved plate 42. A clamping slide plate 44 is symmetrically arranged on the outer surface of the control baffle 41 away from the cutting component 2. A fine-tuning push plate 45 is slidably connected to the top of the clamping slide plate 44, and an arc-shaped clamping plate 46 is fixedly connected to the side of the fine-tuning push plate 45 away from the clamping slide plate 44.

[0034] The lower surface of the control baffle 41 is fixedly connected to the bottom of the inner wall of the protective housing 11, the bottom of the clamping slide plate 44 is slidably connected to the bottom of the inner wall of the protective housing 11, and the back of the clamping slide plate 44 is slidably connected to the outer surface of the control baffle 41 through the guide groove. The inner wall of the arc-shaped clamping plate 46 is pressed against the outer surface of the cutting cable 12.

[0035] After the cutting is completed, the cutting saw blades 233 on both sides are pulled apart to ensure that the cable can pass smoothly through the center wheel 21. When passing the cutting component 4, the clamping slides 44 on both sides move synchronously towards the axis along the slide groove of the control baffle 41. Then, the arc-shaped clamping plate 46 is pushed forward by the top fine-tuning push plate 45 to ensure that the arc-shaped clamping plate 46 can completely clamp the cable. At this time, the cutting point of the cable sheath ring cutting is below the arc-shaped bending plate 42. Then, the control baffle 41 pulls the arc-shaped bending plate 42 straight down through the pull rods on both sides, so that the cutting blade 43 cuts the internal core of the cable along the ring cut.

[0036] After the cutting work inside the protective shell 11 is completed, the front and rear propulsion columns 14 continue to rotate, sending out the cut cable and pulling out the end of the cable from inside the protective shell 11, ready for the next cutting work, thus realizing the cyclic cutting work.

[0037] When the cutting saw blade 233 rotates around the center wheel 21, each time the side of the cutting saw blade 233 passes the position of the protruding end of the spring pressure rod 34, it will trigger the pressure-sensitive contact cylinder 33 by pressing the spring pressure rod 34. Then the pressure-sensitive contact cylinder 33 will emit an electrical signal to record the actual number of rotations of the internal cutting saw blade 233, thereby ensuring that the cable sheath can be completely cut.

[0038] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A railway signal cable cutting device, comprising a protective component (1), the protective component (1) having a protective shell (11), a cutting cable (12) being slidably connected to the axis of the protective shell (11), a torsion wheel slider (13) being symmetrically arranged on the front and rear sides of the outer surface of the protective shell (11), and a propulsion rotating column (14) being rotatably connected to the outer surface of the output shaft of the torsion wheel slider (13), characterized in that: A skin cutting component (2) is arranged in the middle of the inner wall of the protective shell (11), a correction component (3) is arranged on the back of the skin cutting component (2), and a cutting component (4) is arranged on the front of the skin cutting component (2); The skin cutting component (2) comprises a center wheel (21), a side of the inner cavity of the center wheel (21) close to the correction component (3) is provided with a circular cutting groove (22), the upper and lower sides of the circular cutting groove (22) are symmetrically provided with cutting devices (23), and the outer surface of the center wheel (21) is provided with a guide rail (24); The rotary cutting device (23) comprises a sliding cover plate (231), an embedded pull block (5) is arranged in the middle of the inner wall of the sliding cover plate (231), an inner rail slide bar (232) is fixedly connected to one side of the inner wall of the sliding cover plate (231) close to the correction component (3), a cutting saw blade (233) is rotatably connected to the bottom of the inner cavity of the inner rail slide bar (232), and the inner wall of the inner rail slide bar (232) is rotatably connected to the inner wall of the circular cutting rotary groove (22) via a rotating wheel rod.

2. The cutting device for railway signal cables according to claim 1, characterized in that: The embedded pull block (5) comprises a counterweight block (51), the outer surface of which is evenly provided with plug-in card plates (52), a suction rod (54) rotatably connected to the axis of the bottom of the inner cavity of the counterweight block (51), the top of which is fixedly connected to a built-in motor (53), pressure-sensitive inner pads (55) symmetrically arranged on both sides of the inner wall of the counterweight block (51), a compression pad cylinder (234) fixedly connected to the axis of the lower surface of the counterweight block (51), the pressure-sensitive inner pads (55) being fixedly connected to the top of the inner cavity of the counterweight block (51). A hollow pull rod (235) is slidably connected to the bottom of the inner wall of the shrinkage cylinder (234); the bottom end of the hollow pull rod (235) is slidably connected to the outer surface of the center wheel (21) through the guide slide rail (24); the outer surface of the counterweight block (51) is fixedly connected to the inner cavity of the sliding cover plate (231) through the plug-in card plate (52); the outer surface of the inner rail slide bar (232) is slidably connected to the outer surface of the center wheel (21); and the side of the center wheel (21) is fixedly connected to the inner wall of the protective shell (11).

3. The cutting device for railway signal cables according to claim 2, characterized in that: The number of the cutting saw blades (233) is two, and the outer surface of the cutting saw blades (233) and the outer skin of the cutting cable (12) are pressed against each other. The number of the pressure-sensitive inner pads (55) is two, and the outer surface of the pressure-sensitive inner pads (55) is fixedly connected to the inner wall of the counterweight block (51). The outer surface of the built-in motor (53) is fixedly connected to the inner wall of the counterweight block (51).

4. The cutting device for railway signal cables according to claim 3, characterized in that: The outer surface of the torsion wheel slider (13) is slidably connected to the outer surface of the protective shell (11) via a horizontal slide groove, the outer surface of the propulsion rotating column (14) and the front and rear sides of the outer surface of the cutting cable (12) are mutually pressed, and the outer surface of the cutting cable (12) is slidably connected to the inner cavity of the protective shell (11) via a through hole.

5. The cutting device for railway signal cables according to claim 1, characterized in that: The correction component (3) comprises a support base (31), the top of the support base (31) is fixedly connected to a fitting side tube (32), the inner cavity of the fitting side tube (32) is symmetrically provided with pressure-sensitive contact tubes (33) on the upper and lower sides, the axis of the pressure-sensitive contact tube (33) is slidably connected to a spring pressure rod (34), and the outer surface of the pressure-sensitive contact tube (33) is symmetrically provided with arc-shaped guide rods (35) on the left and right sides.

6. The cutting device for railway signal cables according to claim 5, characterized in that: The outer surface of the pressure-sensitive contact tube (33) is fixedly connected to the inner wall of the fitting side tube (32); one end of the spring pressure rod (34) away from the pressure-sensitive contact tube (33) extends to the outside of the fitting side tube (32) through the through opening; and one end of the spring pressure rod (34) away from the pressure-sensitive contact tube (33) is pressed against the outer surface of the axis rod of the cutting saw blade (233); and the bottom of the support base (31) is fixedly connected to the bottom of the inner wall of the protective shell (11).

7. The cutting device for railway signal cables according to claim 1, characterized in that: The cutting component (4) comprises a control baffle (41), the left and right sides of the inner cavity of the control baffle (41) are slidably connected to vertical pull rods, and the top of the vertical pull rod is fixedly connected to an arc-shaped bent plate (42), the inner wall of the arc-shaped bent plate (42) is fixedly connected to a cutting blade (43), and a clamping slide (44) is symmetrically arranged on the side of the outer surface of the control baffle (41) away from the skin cutting component (2), the top of the clamping slide (44) is slidably connected to a fine-tuning push plate (45), and the side of the fine-tuning push plate (45) away from the clamping slide (44) is fixedly connected to an arc-shaped clamping plate (46).

8. The cutting device for railway signal cables according to claim 7, characterized in that: The lower surface of the control baffle (41) is fixedly connected to the bottom of the inner wall of the protective shell (11), the bottom of the clamping slide (44) is slidably connected to the bottom of the inner wall of the protective shell (11), and the back of the clamping slide (44) is slidably connected to the outer surface of the control baffle (41) through a guide groove, and the inner wall of the arc-shaped clamping plate (46) and the outer surface of the cutting cable (12) are pressed against each other.

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