CN216289921U - Cable stripper - Google Patents

Abstract

The utility model relates to a cable stripper, which comprises a guide part, a clamping part and a cutting part, wherein the positioning part comprises a bearing plate, a guide rod and a guide wheel, the front part of the bearing plate is provided with a positioning hole, the inner wall of the positioning hole is provided with an internal thread, the guide rod is provided with an external thread and is connected with the positioning hole through the external thread, the left side surface of the bearing plate is provided with a bolt, the inner end of the bolt extends into the positioning hole to tightly push against the front side surface of the guide rod, the clamping part comprises a slide rod, a pressing block and a roller wheel, the roller wheel positioned at the left part of a bearing groove is vertically opposite to the guide wheel, the cutting part comprises a turning plate and a cutting knife, the turning plate is connected with the bearing plate through hinge, the cutting knife comprises a first knife body and a second knife body, the left end of the first knife body is provided with a first cutting edge, and the second knife body is provided with a second cutting edge. The utility model can solve the problem that the existing cable wire stripper can not remove the insulating layer of the flexible cable.

Description

Cable stripper

Technical Field

The utility model relates to the technical field of power maintenance, in particular to a cable stripper.

Background

A cable is a conductor made of one or more conductors insulated from each other and an outer insulating sheath that carries power or information from one location to another.

When a power system is maintained, operations such as cutting and connecting cables are often required, when the cables are connected, an outer insulating layer of the cables needs to be stripped off, and when the insulating layer is stripped, a wire stripper needs to be used.

The existing wire strippers cut and strip an insulating layer along the length direction or the annular direction of a cable, and can only strip the insulating layer of the cable with higher hardness, and the flexible cable cannot be stripped by using a conventional wire stripper because of the softness and large deformation quantity, needs manual stripping by using a wallpaper knife and the like by maintenance personnel, is not only troublesome, but also easily injures hands and cable inner cores.

Disclosure of Invention

The utility model provides a cable stripper, aiming at solving the problem that the existing cable stripper can not remove an insulating layer of a flexible cable, and aiming at enabling maintenance personnel to use an instrument to remove the insulating layer of the flexible cable, so that the operation is quick and convenient, and the inner core of the cable is not damaged.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

a cable stripper comprises a guide part, a clamping part and a cutting part;

the guide part comprises a bearing plate, a guide rod and a guide wheel, the bearing plate is a rectangular plate body, the distance between the front end and the rear end of the bearing plate is greater than the distance between the left end and the right end, a rectangular through hole penetrating through the upper surface and the lower surface of the bearing plate is arranged at the rear part of the bearing plate, a positioning hole penetrating through the upper surface and the lower surface of the bearing plate is arranged at the front part of the bearing plate, the positioning hole is a circular through hole, internal threads are arranged on the inner wall of the positioning hole, the guide rod is a rod body which is vertically arranged and has a square cross section, the four corners of the square are in an arc transition state, the diameter of an arc at the arc transition position is greater than the side length of the square, the upper parts of arc side surfaces at which the four arc transition positions on the guide rod are provided with integrated external threads, the guide rod is connected with the positioning hole through the external threads, and a rectangular connecting groove which is recessed towards the inside of the guide rod, and has a downward opening is arranged at the lower part of the guide rod, the left end and the right end of the connecting groove respectively penetrate through the lower parts of the left side surface and the right side surface of the guide rod, shaft holes penetrating through the front side surface and the rear side surface of the guide rod are formed in the lower parts of the connecting groove, the guide wheel is a disc body positioned in the connecting groove, rotating shafts are connected to the centers of the front side surface and the rear side surface of the guide wheel respectively, the two rotating shafts respectively extend into the shaft holes of the guide rod on the front side and the rear side surface of the guide wheel and are in sliding contact with the shaft holes, a threaded hole communicated with the positioning hole is formed in the left side surface of the bearing plate, a bolt is screwed in the threaded hole, and the inner end of the bolt extends into the positioning hole to tightly support the left side surface of the guide rod;

the clamping part comprises a slide bar, a pressing block and a roller, the slide bar is a bar body with an outer side wall in sliding contact with the inner wall of the rectangular through hole, the upper end of the slide bar is positioned above the bearing plate and is connected with a horizontal baffle, the lower end of the slide bar penetrates through the rectangular through hole and is positioned below the bearing plate, the lower end of the front side face of the slide bar is connected with the rear side face of the pressing block, the pressing block is a cuboid positioned below the guide wheel, a rectangular bearing groove with an upward opening and a concave part towards the inside of the pressing block is arranged on the upper surface of the pressing block, the left end and the right end of the bearing groove respectively penetrate through the left end and the right end of the pressing block, rollers are movably connected to the left part and the right part of the front inner side wall and the rear side wall of the bearing groove, the rollers are cylindrical, annular V-shaped grooves with outward openings are arranged on the peripheral walls of the rollers, and the V-shaped grooves on the left part of the bearing groove are vertically opposite to the guide wheel;

the cutting part comprises a turning plate and a cutting knife, the turning plate is a rectangular plate body, the distance between the front side surface and the rear side surface of the turning plate is smaller than that between the front side surface and the rear side surface of the bearing plate, the front side surface of the turning plate is aligned with the front side surface of the bearing plate, the left side surface of the turning plate is in contact with the right side surface of the bearing plate, the left end of the upper surface of the turning plate is connected with the front part of the right end surface of the upper surface of the bearing plate through a hinge, the lower surface of the turning plate is connected with the cutting knife positioned on the right side of the guide wheel, the cutting knife comprises a first knife body and a second knife body, the first knife body is a plate body with a left end surface curved to the right and a lower end surface bent downwards to form an arc, the right end of the arc of the lower end surface of the first knife body is higher than the left end, the upper end of the first knife body is connected with the middle part of the lower surface of the turning plate, the left end of the first knife body is close to the lower end of the guide wheel, and the left end of the first knife body is provided with a first knife edge which is V-shaped bulge along the arc length of the arc-shaped recess of the left end of the first knife body, the left parts of the lower ends of the front side surface and the rear side surface of the first cutter body are respectively connected with a second cutter body, the two second cutter bodies are symmetrical front and back, the second cutter body positioned on the front side of the first cutter body is a plate-shaped body, the upper surface of the second cutter body is a right-angled triangle, the lower surface of the second cutter body is a right-angled triangle, the area of the lower surface of the second cutter body is larger than that of the upper surface of the second cutter body, the third side surface of the second cutter body is a right-angled triangle, the right angle of the upper surface of the second cutter body is a right-angled triangle, the side surface between the long right-angled sides of the right-angled triangles of the upper surface and the lower surface of the second cutter body is a vertical inner side surface and faces the first cutter body and the first cutter edge, the side surface of the second cutter body is an inclined side surface, and the bottom edge of the inclined side surface of the second cutter body is an inclined side surface, the lower end of the left side of the inclined side face forms the head end of a second cutting edge, the long right-angle edge of a right-angled triangle on the upper surface of the second cutter body is connected to the front side face of the first cutter body, the intersection of the long right-angle edge and the bevel edge of the right-angled triangle on the upper surface of the second cutter body is intersected with the left end of the front side face of the first cutter body, the right part of the long right-angle edge of the right-angled triangle on the lower surface of the second cutter body is connected to the lower end of the front side face of the first cutter body, the left part of the long right-angle edge of the right-angled triangle on the lower surface of the second cutter body is connected to the lower end of the front side face of the first cutting edge in a backward bending mode, the bottom surface of the second cutter body bends downwards and is located on the same curved surface with the lower end face of the first cutter body.

Further, the lower end of the first blade and the head end of the second blade intersect.

Further, the V-shaped groove on the roller wheel positioned at the right part of the bearing groove is positioned at the right side of the second cutter body.

Furthermore, scale marks are arranged on the front side surface and the rear side surface of the guide rod.

Further, when the upper end of the guide rod is aligned with the upper end of the threaded hole, the lower end of the guide wheel and the lower end of the first knife edge are located on the same horizontal plane, and the zero scale of the scale mark is aligned with the lower surface of the bearing plate.

Furthermore, the sliding rod is sleeved with a compression spring positioned between the bearing plate and the baffle.

Furthermore, the arc diameter of the curved surface of the bottom surface of the second cutter body and the lower end of the first cutter body is larger than the diameter of the guide wheel, and the lower end of the first cutter edge is tangent to the horizontal surface.

Further, the arc diameter of the first cutting edge is larger than the diameter of the guide wheel, and the distance between the first cutting edge and the guide wheel is increased from bottom to top.

Further, the left end of the turning plate is positioned on the left side of the lower end of the first blade.

Through the technical scheme, the utility model has the beneficial effects that:

the guide part and the cutting part of the cable insulation layer cutting device can cut the cable insulation layer, the cutting depth can be determined only by adjusting the height difference between the lower end of the guide wheel and the lower end of the first knife edge, the cable insulation layer starts to move horizontally after entering the cable insulation layer for a certain depth, the cable insulation layer cannot go deep into the cable, an inner core of the cable cannot be injured, and maintenance personnel cannot be injured due to the limitation of the pressing block.

The clamping force is controlled by holding with a hand in the using process, the clamping force can be changed along with tolerance changes such as the diameter and the out-of-roundness of the cable, the phenomenon of blockage or deviation caused by the problems of the diameter and the out-of-roundness of the cable is avoided, and an inner core of the cable is not cut.

The utility model is not limited by the cross section shape of the flexible cable, and the insulating layer can be conveniently stripped when the cross section is round, square or flat cable.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a left side view of the present invention;

FIG. 4 is a cross-sectional front view of the present invention;

FIG. 5 is a schematic view of the construction of the cutting burr of the present invention;

fig. 6 is a schematic view of the structure of a second cutter body of the utility model;

FIG. 7 is a schematic view of the construction of the guide bar of the present invention;

FIG. 8 is a view of the present invention in use at the beginning of cutting;

fig. 9 is a diagram of the state of use of the present invention during cutting.

The reference numbers in the drawings are as follows: the cutting tool comprises a bearing plate 1, a guide rod 2, a guide wheel 3, a positioning hole 4, an external thread 5, a connecting groove 6, a bolt 7, a sliding rod 8, a pressing block 9, a roller 10, a baffle plate 11, a bearing groove 12, a turning plate 13, a cutting knife 14, a hinge 15, a first knife body 16, a second knife body 17, a first cutting edge 18, a scale mark 19 and a compression spring 20.

Detailed Description

The utility model is further described with reference to the following figures and detailed description:

as shown in fig. 1 to 9, a cable stripper includes a guide portion, a clamping portion and a cutting portion;

the guide part comprises a bearing plate 1, a guide rod 2 and a guide wheel 3, the bearing plate 1 is a rectangular plate body, the distance between the front end and the rear end of the bearing plate 1 is greater than the distance between the left end and the right end, a rectangular through hole penetrating through the upper surface and the lower surface of the bearing plate 1 is arranged at the rear part of the bearing plate 1, a positioning hole 4 penetrating through the upper surface and the lower surface of the bearing plate 1 is arranged at the front part of the bearing plate 1, the positioning hole 4 is a circular through hole, internal threads are arranged on the inner wall of the positioning hole 4, the guide rod 2 is a rod body with a vertically arranged square cross section, the four corners of the square are in an arc transition state, the diameter of an arc at the arc transition position is greater than the side length of the square, an integrated external thread 5 is arranged on the upper part of an arc side surface where the four arc transition positions on the guide rod 2 are arranged, the guide rod 2 is connected with the positioning hole 4 through the external thread 5, and a concave part towards the inside of the guide rod 2 is arranged at the lower part of the guide rod 2, The bearing plate comprises a rectangular connecting groove 6 with a downward opening, wherein the left end and the right end of the connecting groove 6 respectively penetrate through the lower parts of the left side surface and the right side surface of a guide rod 2, the lower part of the connecting groove 6 is provided with shaft holes penetrating through the front side surface and the rear side surface of the guide rod 2, a guide wheel 3 is a disc body positioned in the connecting groove 6, the centers of the front side surface and the rear side surface of the guide wheel 3 are respectively connected with rotating shafts, the two rotating shafts respectively extend into the shaft holes of the guide rod 2 on the front side and the rear side surface of the guide wheel 3 and are in sliding contact with the shaft holes, the left side surface of the bearing plate 1 is provided with a threaded hole communicated with a positioning hole 4, a bolt 7 is screwed in the threaded hole, and the inner end of the bolt 7 extends into the positioning hole 4 to prop against the left side surface of the guide rod 2;

the clamping part comprises a slide bar 8, a pressing block 9 and a roller 10, the slide bar 8 is a bar body with the outer side wall in sliding contact with the inner wall of the rectangular through hole, the upper end of the slide bar 8 is positioned above the bearing plate 1 and connected with a horizontal baffle 11, the lower end of the slide bar 8 penetrates through the rectangular through hole and is positioned below the bearing plate 1, the lower end of the front side surface of the slide bar 8 is connected with the rear side surface of the pressing block 9, the pressing block 9 is a cuboid below the guide wheel 3, a rectangular bearing groove 12 which is sunken towards the inside of the pressing block 9 and has an upward opening is arranged on the upper surface of the pressing block 9, the left end and the right end of the bearing groove 12 respectively penetrate through the left end and the right end of the pressing block 9, the left part and the right part of the front inner side wall and the rear inner side wall of the bearing groove 12 are both movably connected with rollers 10, the roller 10 is a cylinder, the circumferential wall of the roller 10 is provided with an annular V-shaped groove with an outward opening, and the V-shaped groove on the roller 10 at the left part of the bearing groove 12 is vertically opposite to the guide wheel 3;

the cutting part comprises a turning plate 13 and a cutting knife 14, the turning plate 13 is a rectangular plate body, the distance between the front side surface and the rear side surface of the turning plate 13 is smaller than the distance between the front side surface and the rear side surface of the bearing plate 1, the front side surface of the turning plate 13 is aligned with the front side surface of the bearing plate 1, the left side surface of the turning plate 13 is contacted with the right side surface of the bearing plate 1, the left end of the upper surface of the turning plate 13 is connected with the front part of the right end of the upper surface of the bearing plate 1 through a hinge 15, the lower surface of the turning plate 13 is connected with the cutting knife 14 positioned on the right side of the guide wheel 3, the cutting knife 14 comprises a first knife body 16 and a second knife body 17, the first knife body 16 is a plate body with the arc-shaped concave part on the left end surface bent towards the right and the lower end surface downwards, the arc-shaped right end of the lower end surface of the first knife body 16 is higher than the left end, the upper end of the first knife body 16 is connected with the middle part of the lower surface of the turning plate 13, the lower end of the guide wheel 3, the left end of the first knife body 16 is provided with a first knife blade 18 which is V-shaped convex towards the left along the arc-shaped concave part, the left parts of the lower ends of the front side surface and the rear side surface of the first cutter body 16 are both connected with second cutter bodies 17, the two second cutter bodies 17 are symmetrical in front and back, the second cutter body 17 positioned at the front side of the first cutter body 16 is a plate-shaped body with the upper surface being a right-angled triangle, the lower surface being a right-angled triangle with the area larger than that of the upper surface, and the three side surfaces, the right angle of the upper surface and the right angle of the lower surface are corresponding up and down, the right-angled triangles of the upper surface and the lower surface are both composed of a long right-angled edge, a short right-angled edge and a bevel edge, the side surface between the long right-angled edges of the right-angled triangles of the upper surface and the lower surface is a vertical inner side surface and faces the first cutter body 16 and the first cutter blade 18, the side surface between the short right-angled edges of the right-angled triangles of the upper surface and the lower surface is an inclined side surface, and the bottom edge of the inclined side surface forms a second cutter blade, the lower end of the left side of the inclined side surface forms the head end of a second blade, the long right-angle side of the right-angled triangle on the upper surface of the second blade 17 is connected to the front side surface of the first blade 16, the intersection of the long right-angle side and the hypotenuse of the right-angled triangle on the upper surface of the second blade 17 is intersected with the left end of the front side surface of the first blade 16, the right part of the long right-angle side of the right-angled triangle on the lower surface of the second blade 17 is connected to the lower end of the front side surface of the first blade 16, the left part of the long right-angle triangle is connected to the lower end of the front side surface of the first blade 18 in a backward bending mode, the left side of the inclined side surface is connected to the front side surface of the first blade 18, and the bottom surface of the second blade 17 is bent downwards and is located on the same curved surface with the lower end surface of the first blade 16.

The lower end of the first blade 18 intersects the head end of the second blade.

The "V" shaped groove on the roller 10 to the right of the bearing groove 12 is located to the right of the second blade 17.

And the front side and the rear side of the guide rod 2 are provided with scale marks 19.

When the upper end of the guide rod 2 is aligned with the upper end of the threaded hole, the lower end of the guide wheel 3 and the lower end of the first blade 18 are positioned on the same horizontal plane, and the zero scale of the scale mark 19 is aligned with the lower surface of the bearing plate 1.

The sliding rod 8 is sleeved with a compression spring 20 which is positioned between the bearing plate 1 and the baffle plate 11.

The arc diameter of the curved surface of the bottom surface of the second cutter body 17 and the lower end of the first cutter body 16 is larger than the diameter of the guide wheel 3, and the lower end of the first cutting edge 18 is tangent to the horizontal surface.

The arc diameter of the first blade 18 is larger than the diameter of the guide wheel 3, and the distance between the first blade 18 and the guide wheel 3 is increased from bottom to top.

The left end of the flap 13 is positioned at the left side of the lower end of the first blade 18.

Before using, confirm the insulating layer degree of depth of cable earlier, place the cable between clamping part and guide part, cutting knife 14 is located the cross-section of cable, loosens bolt 7, and through rotatory leading wheel 3 and guide bar 2, the first cutting edge 18 lower extreme of cutting knife 14 is located between the insulating layer and the inner core of cable, is the cable insulating layer degree of depth that needs the cutting promptly.

When in use, the cable is arranged between the clamping part and the guide part, the utility model clamps the cable along the length direction of the cable, then the bearing plate 1 and the pressing block 9 are held by hands, the guide wheel 3 and the roller 10 clamp the cable, the thumb presses the turning plate 13 downwards and pulls the utility model to move along the length direction of the cable, at this time, the utility model is shown in figure 8, because the turning plate 13 forms an included angle with the bearing plate 1, the second cutter body 17 inclines, the second cutter body 17 guides the first cutter body 16, just like a plowshare of a plough, the lower end of the first cutting edge 18 can go deep into the insulating layer of the cable along with pulling and pressing, when the lower end of the first cutting edge 18 goes deep into the insulating layer of the cable, the turning plate 13 is parallel with the bearing plate 1, as shown in figure 9, the lower end of the first cutting edge 18 is arranged between the insulating layer and the conducting wire of the cable, the lower end of the first cutting edge (18) is in a tangent state with the horizontal plane, the second cutter body 17 will not guide the cutting blade 14 further, and therefore the cutting blade 14 will not continue to cut down the inner core as it pulls to only cut the corresponding depth of the cable insulation layer.

When the device is not used, the compression spring 20 extends to tighten the clamping part and press the guide wheel 3 and the cutting knife 14, so that the cutting knife 14 approaches to the guide wheel 3, the cutting knife 14 is prevented from being turned up, and people can be prevented from being injured when the device is taken.

According to the utility model, the cable insulation layer is cut, the cutting depth can be determined only by adjusting the height difference between the lower end of the guide wheel 3 and the lower end of the first cutter blade 18, and the cutting depth starts to move horizontally after the cutting depth reaches a certain depth of the cable insulation layer, so that the cutting depth cannot go deep into the cable continuously, and an inner core of the cable cannot be damaged.

The utility model controls the force and depth by holding with hands in the using process, can change along with the tolerance change of the diameter, the out-of-roundness and the like of the cable, can not generate deviation due to the problems of the diameter, the out-of-roundness and the like of the cable, can not cut an inner core of the cable, and can not hurt maintenance personnel.

The cable stripping device is not required to rotate around the cable when the cable insulation layer is stripped, so that the cable stripping device is not limited by the shape of the cross section of the cable when in use, and the insulation layer can be conveniently stripped when the cross section is circular, square or flat cable.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made to the technical solution of the present invention within the scope of disclosure without departing from the spirit of the present invention.

Claims (9)

1. A cable stripper is characterized by comprising a guide part, a clamping part and a cutting part;

the guide part comprises a bearing plate (1), a guide rod (2) and a guide wheel (3), the bearing plate (1) is a rectangular plate body, the distance between the front end and the rear end of the bearing plate (1) is greater than the distance between the left end and the right end, a rectangular through hole penetrating through the upper surface and the lower surface of the bearing plate (1) is arranged at the rear part of the bearing plate (1), a positioning hole (4) penetrating through the upper surface and the lower surface of the bearing plate (1) is arranged at the front part of the bearing plate (1), the positioning hole (4) is a circular through hole, an internal thread is arranged on the inner wall of the positioning hole (4), the guide rod (2) is a vertically arranged rod body with a square cross section, four corners of the square are in an arc transition state, the diameter of an arc at the arc transition position is greater than the side length of the square, and an integral external thread (5) is arranged on the upper part of the arc side surface where four arc transition positions on the guide rod (2), the guide rod (2) is connected with the positioning hole (4) through an external thread (5), a rectangular connecting groove (6) which is sunken towards the inside of the guide rod (2) and has a downward opening is arranged at the lower part of the guide rod (2), the left end and the right end of the connecting groove (6) respectively penetrate through the lower parts of the left side surface and the right side surface of the guide rod (2), the lower part of the connecting groove (6) is provided with a shaft hole penetrating through the front side surface and the rear side surface of the guide rod (2), the guide wheel (3) is a disk body positioned in the connecting groove (6), the centers of the front side surface and the rear side surface of the guide wheel (3) are respectively connected with rotating shafts, the two rotating shafts respectively extend into the shaft holes of the guide rods (2) at the front side and the rear side of the guide wheel (3) and are in sliding contact with the shaft holes, the left side surface of the bearing plate (1) is provided with a threaded hole communicated with the positioning hole (4), a bolt (7) is screwed in the threaded hole, and the inner end of the bolt (7) extends into the positioning hole (4) to tightly jack the left side surface of the guide rod (2);

the clamping part comprises a slide bar (8), a pressing block (9) and a roller (10), the slide bar (8) is a bar body with an outer side wall in sliding contact with the inner wall of a rectangular through hole, the upper end of the slide bar (8) is positioned above the bearing plate (1) and connected with a horizontal baffle (11), the lower end of the slide bar (8) passes through the rectangular through hole and is positioned below the bearing plate (1), the lower end of the front side surface of the slide bar (8) is connected with the rear side surface of the pressing block (9), the pressing block (9) is a cuboid positioned below the guide wheel (3), the upper surface of the pressing block (9) is provided with a rectangular bearing groove (12) with an inward depression, an upward opening and a rectangular bearing groove (9), the left end and the right end of the bearing groove (12) respectively penetrate through the left end and the right end of the pressing block (9), the left part and the right part of the front inner side wall and the back side wall of the bearing groove (12) are movably connected with the roller (10), and the roller (10) is a cylinder, the peripheral wall of the roller (10) is provided with an annular V-shaped groove with an outward opening, and the V-shaped groove on the roller (10) positioned at the left part of the bearing groove (12) is opposite to the guide wheel (3) up and down;

the cutting part comprises a turning plate (13) and a cutting knife (14), the turning plate (13) is a rectangular plate body, the distance between the front side surface and the rear side surface of the turning plate (13) is smaller than the distance between the front side surface and the rear side surface of the bearing plate (1), the front side surface of the turning plate (13) is aligned with the front side surface of the bearing plate (1), the left side surface of the turning plate (13) is contacted with the right side surface of the bearing plate (1), the left end of the upper surface of the turning plate (13) is connected with the front part of the right end surface of the upper surface of the bearing plate (1) through a hinge (15), the lower surface of the turning plate (13) is connected with the cutting knife (14) positioned on the right side of the guide wheel (3), the cutting knife (14) comprises a first knife body (16) and a second knife body (17), the first knife body (16) is a plate body with the arc-shaped depression of the left end surface and the downward bending of the right end surface of the lower end surface of the first knife body (16) higher than the left end, the upper end of a first cutter body (16) is connected with the middle part of the lower surface of a turning plate (13), the left side of the lower end of the first cutter body (16) is close to the lower end of a guide wheel (3), a first blade (18) which is V-shaped and protrudes leftwards along the arc length of the arc-shaped recess of the left end is arranged at the left end of the first cutter body (16), the left parts of the lower ends of the front side and the rear side of the first cutter body (16) are both connected with second cutter bodies (17), the two second cutter bodies (17) are symmetrical front and back, the second cutter body (17) positioned at the front side of the first cutter body (16) is a right-angled triangle, the lower surface is a right-angled triangle with the area larger than that of the upper surface, and a plate-shaped body which is provided with three sides, the right angle of the upper surface and the right angle of the lower surface which are vertically corresponding to each other, the right-angled triangles of the upper surface and the lower surface are respectively composed of a long right-angled side, and the side of the right-angled triangle of the upper surface and the lower surface is a vertical side, And faces the first cutter body (16) and the first cutting edge (18), the side between the short right-angle sides of the right-angled triangle of the upper surface and the lower surface is a vertical right-side surface, the side between the hypotenuse of the right-angled triangle of the upper surface and the lower surface is an inclined side surface, the bottom side of the inclined side surface forms a second cutting edge, the lower end of the left side of the inclined side surface forms the head end of the second cutting edge, the long right-angle side of the right-angled triangle of the upper surface of the second cutter body (17) is connected to the front side of the first cutter body (16), the intersection of the long right-angle side and the hypotenuse of the right-angled triangle of the upper surface of the second cutter body (17) is intersected with the left end of the front side of the first cutter body (16), the right part of the long right-angle side of the right-angled triangle of the lower surface of the second cutter body (17) is connected to the lower end of the front side of the first cutter body (16), the left part is bent backwards and connected to the lower end of the front side of the first cutting edge (18), the left side of the inclined side is connected to the front side of the first cutting edge (18), the bottom surface of the second cutter body (17) bends downwards and is positioned on the same curved surface with the lower end surface of the first cutter body (16).

2. A cable stripper as claimed in claim 1, wherein the lower end of the first blade (18) intersects the head end of the second blade.

3. A cable stripper as claimed in claim 1, wherein the "V" shaped groove on the roller (10) to the right of the bearing groove (12) is to the right of the second blade (17).

4. A cable stripper as claimed in claim 1, wherein the guide bar (2) is provided with graduation marks (19) on both its front and rear sides.

5. A cable stripper as claimed in claim 4, wherein the guide wheel (3) has a lower end which is located in the same horizontal plane as the lower end of the first blade (18) when the upper end of the guide bar (2) is aligned with the upper end of the threaded bore, and the zero scale of the scale marks (19) is aligned with the lower surface of the carrier plate (1).

6. Cable stripper as claimed in claim 1, characterized in that the slide bar (8) is fitted with a compression spring (20) between the carrier plate (1) and the stop (11).

7. The cable stripper as claimed in claim 1, wherein the curved surface of the bottom surface of the second blade (17) and the lower end of the first blade (16) has an arc diameter larger than the diameter of the guide wheel (3), and the lower end of the first blade (18) is tangent to the horizontal plane.

8. The cable stripper as claimed in claim 7, wherein the first blade (18) has an arc-shaped diameter greater than the diameter of the guide wheel (3), and the distance between the first blade (18) and the guide wheel (3) increases from bottom to top.

9. A cable stripper as claimed in claim 1, wherein the left end of the flap (13) is located to the left of the lower end of the first blade (18).

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