CN218161527U - Wire stripping tool - Google Patents

Abstract

The utility model relates to a wire stripping instrument, wire stripping instrument is used for armor winding cable, including first handle and second handle, first handle includes cutting part, pivot portion and the portion of gripping, and the second handle includes clamping part, pivot portion and the portion of gripping, and first handle is "X" shape pivotal connection with the second handle in the pivot portion of first handle and the pivot portion department of second handle for the user can make the second handle pivot for first handle through the portion of gripping of first handle and second handle, twines the cable centre gripping with the armor between the cutting part of first handle and the clamping part of second handle, utilizes the cutting part cutting cable of first handle.

Description

Wire stripping tool

Technical Field

The present invention relates to a wire stripping tool, and more particularly to a wire stripping tool for stripping an armored wrap cable (MC/BX cable).

Background

This section provides background information related to the present application which does not necessarily form the prior art.

Armored wrap cables are widely used in the construction/power industry. The outer protective shell of the cable is formed by winding metal wires. This design protects the cable well and allows for large angle bending. These outer protective casings are usually made of aluminum wire windings and are relatively stiff, making it difficult to remove the protective casing of the termination when the cable is used.

When tools such as a wire clipper, a rotary cutter and the like which are commonly used at present are used for cutting the winding wire of the protective shell, time and labor are wasted, and the cable in the protective shell is easily cut off and personal injury is caused. In particular, a bolt clipper or rotary shaver may require a great clamping force to cut, which may cause damage to the wrist or fingers. In addition, the shape of existing bolt clippers or other common cutting tools is not ergonomically designed and has unprotected tips, which can cause hand or body injuries. Moreover, the structure of the bolt clipper or the rotary cutter is complex, the installation time of the cable required during use is long, and the cable is easy to separate from the cutting area. In addition, the depth of the universal tool is not easy to control during cutting, and the insulating layer of the inner cable is easy to damage.

In yet another aspect, only a few tools can accommodate large diameter armored wrap cables. Existing very compact design tools are not suitable for cutting large armoured wound cables. Many current cutting tools are only one inch outer diameter at the maximum.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to solve one or more of the above mentioned technical problems.

In particular, the utility model aims at providing a laborsaving and convenient wire stripping instrument that is used for armouring winding cable of operation.

In particular, it is a further object of the present invention to provide a wire stripping tool that is suitable for use with cables of various diameters, including large diameter cables.

In particular, it is also an object of the present invention to provide a wire stripping tool for armored, wound cables with consistent cutting force.

In particular, it is another object of the present invention to provide a wire stripping tool that can adjust the depth of cut so that the inner cable is not damaged.

In particular, it is another object of the present invention to provide a wire stripping tool that is capable of adjusting the relative pivotal position of the two handles of the wire stripping tool.

In particular, it is a further object of the invention to provide a safe stripping tool for armored, wound cables.

In particular, another object of the present invention is to provide a wire stripping tool capable of simultaneously cutting an inner cable of an armored cable and stripping an insulation layer of the cable.

According to an aspect of the utility model, a wire stripping instrument for armor twines cable is provided, the wire stripping instrument includes first handle and second handle, first handle includes cutting part, pivot portion and the portion of gripping, the second handle includes the clamping part, pivot portion and the portion of gripping, first handle is "X" shape pivotal connection with the second handle in the pivot portion of first handle and the pivot portion department of second handle, make the user can make the second handle pivot for first handle through the portion of gripping of first handle and the portion of gripping of second handle, with armor twine cable centre gripping between the cutting part of first handle and the clamping part of second handle, utilize the cutting part cutting cable of first handle. By this arrangement of the first and second handles, the lever principle can be used to reduce the clamping force that the user needs to apply when cutting the cable. Besides being convenient for the force application of wrists and fingers, the utility model is convenient for the arms of the user to exert force.

According to one aspect of the present invention, a laterally extending "V" shaped opening is formed in the grip portion of the second handle of the wire stripping tool towards one side of the grip portion of the second handle. Therefore, the cable can be fixed and cannot deviate from the cutting position, and the cutting of the cable can be avoided.

According to an aspect of the invention, one or more ribs are provided in the "V" shaped opening of the clamping portion, coinciding with the appearance of the cable and arranged side by side. Therefore, the cable clamping time and the cutting time can be reduced, the efficiency of processing the armored and wound cable is improved, and the safety is improved.

According to an aspect of the invention, the cutting portion of the first handle of the wire stripping tool comprises a drive mechanism for driving the cutting blade, the drive mechanism comprises a cam shaft, a first cam, a second cam and a driver, one end of the cam shaft is integrated or fixedly connected with the first cam, the other end of the cam shaft is matched with the second cam, the first cam and the second cam have the same profile, and the first cam and the second cam are arranged to be driven together to rotate by the driver in the same phase. Therefore, the deflection of the cam shaft can be avoided, the driving mechanism can work smoothly, and the cutting performance is improved.

According to the utility model discloses an aspect, be formed with respectively in the both sides of the cutting portion of first handle with first cam correspond the first cam groove of complex and correspond the complex second cam groove with the second cam, first cam groove and second cam groove are the elongated groove, at first cam and the rotatory in-process of second cam, a pair of lateral wall of first cam groove and second cam groove is periodically with the cam surface butt of first cam and second cam to promote first cam, the reciprocal translation of cutting blade 35 that the second cam and be connected to on the first cam are doing rotary motion.

According to an aspect of the utility model, the cutting part of the first handle of wire stripping instrument is provided with spring loading mechanism, and spring loading mechanism is including setting up regulating spring and adjusting screw in the through-hole of cutting part, through-hole perpendicular to camshaft for adjusting spring arranges one end butt camshaft and applys the spring force in the direction towards the cable, and adjusting screw twists soon at the first end of through-hole, and butt adjusting spring's the other end. Therefore, the wire stripping tool can adapt to users with different holding forces, and the use efficiency is improved.

According to an aspect of the present invention, the wire stripping tool further comprises a depth of cut adjusting mechanism, the depth of cut adjusting mechanism comprising a stop nut screwed to the second end of the through hole, the stop nut abutting the camshaft from a side opposite to the adjusting spring, limiting a moving range of the camshaft in an up-down direction, the depth of cut of the cutting blade connected to the first cam being changeable by screwing the stop nut.

According to an aspect of the utility model, the driver includes the rocking handle, and the one end of rocking handle combines or links together fixedly with the second cam integratively, and the other end of rocking handle is provided with the runner, and the runner includes bowl form body and tube-shape axle sleeve, has held the runner axle in the axle sleeve of runner, and runner set screw passes from the runner axle, fixes the tip at the rocking handle with the mode that can rotate with the runner, can save a plurality of reserve cutting blades in the body of runner. Through the design, the design of the wire stripping tool becomes compact and is convenient to carry and use.

According to an aspect of the invention, the drive comprises a motor.

According to an aspect of the utility model, be provided with the spring between the portion of gripping of the second handle of wire stripping instrument and the portion of gripping of first handle. Thereby, the wire stripping mechanism is made very labor-saving.

According to an aspect of the present invention, the wire stripping tool includes a position switching mechanism, the pivot portion of the first handle and the pivot portion of the second handle are pivotally connected together by the position switching mechanism, and the position switching mechanism includes a position switching hole formed at the pivot portion of the first handle, a position adjusting hole formed at the pivot portion of the second handle, and a handle pivot shaft passing through the position switching hole and the position adjusting hole, so that the first handle and the second handle can be located at two or more relative positions. Therefore, the wire stripping tool can adapt to different cables and environments, and the applicability is improved.

According to the utility model discloses an aspect, position switching mechanism's position switching hole forms to be dumbbell shape, and the position control hole forms to long circle or oval, and the shaft lever part of handle pivotal axis has long circle or oval-shaped cross-section, forms the screw thread portion and the fixation nut cooperation at handle pivotal axis end.

According to an aspect of the present invention, the position switching hole of the position switching mechanism is a long through hole, a plurality of arc-shaped position switching grooves are provided in the inner side of the first handle, a position adjusting protrusion is provided in the inner side of the second handle, and the position adjusting protrusion can be inserted into any one of the position switching grooves and slide.

According to the utility model discloses an aspect, position switching mechanism's the position that is located first handle switches the hole for taking the elongated hole of internal tooth, and the handle pivotal axis includes cap portion and axle rod portion, and axle rod portion includes minor diameter portion, outer tooth portion and major diameter portion along the direction of keeping away from cap portion in proper order, outer tooth portion and internal toothing, and pretension spring supports and leans on between the cap portion and the first handle in the handle pivotal axis, and the major diameter portion holding of handle pivotal axis is in the position control hole of second handle.

According to the utility model discloses an aspect is formed with towards one side and the open concave part in lower part in one side of cutting part for holding camshaft, first cam and cutting blade, make the cutting part of installing back cutting blade only expose in lower part cutting position, all the other directions are enclosed by the lateral wall of concave part.

According to the utility model discloses an aspect is provided with first wire stripping blade on first handle, is provided with second wire stripping blade on the second handle, and when first handle and second handle pressed from both sides tightly, first wire stripping blade and second wire stripping blade can be cut and strip the insulating layer of cable to the cable of getting rid of the armor.

According to the utility model discloses an aspect, first wire stripping blade, second wire stripping blade are the rectangle, form the slope face in one side of first wire stripping blade, second wire stripping blade to be provided with along the length of first wire stripping blade, second wire stripping blade and begin a plurality of semicircular cutting edges that increase gradually from the end of first wire stripping blade, second wire stripping blade, first wire stripping blade, second wire stripping blade arrange into the slope face of first wire stripping blade and the slope face of second wire stripping blade and face each other, and the cutting edge of first wire stripping blade is relative each other with the cutting edge of second wire stripping blade, so that the same size cutting edge pairs.

According to the utility model discloses an aspect is provided with at the opposite side of first wire stripping blade, second wire stripping blade and is complete or partial circular shape screw hole for utilize the screw to be fixed in first handle with first wire stripping blade, be fixed in the second handle with second wire stripping blade.

According to an aspect of the utility model, first wire stripping blade sets up on the cutting part of first handle, and second wire stripping blade sets up on the clamping part of second handle.

According to an aspect of the present invention, the first wire stripping blade is disposed on one side of the cutting portion with respect to the pivot portion of the first handle, and the second wire stripping blade is disposed on one side of the clamping portion with respect to the pivot portion of the second handle.

Drawings

The foregoing and additional features and characteristics of the present application will become more apparent from the following detailed description, taken in conjunction with the accompanying drawings, which are given by way of example only and which are not necessarily drawn to scale. Like reference numerals are used to indicate like parts in the accompanying drawings, in which:

fig. 1 is an exploded perspective view of a wire stripping tool according to an embodiment of the present invention;

fig. 2A is a perspective view of a cable clamping state of the wire stripping tool according to an embodiment of the present invention;

fig. 2B is a view of the head of a second handle of a wire stripping tool according to an embodiment of the present invention;

fig. 2C is a view of a second handle of a wire stripping tool according to an embodiment of the present invention;

fig. 2D is a partial cross-sectional view of a wire stripping tool according to an embodiment of the present invention, taken along the direction of extension of the cable;

fig. 3 is an exploded perspective view of a first handle of a wire stripping tool according to an embodiment of the present invention;

fig. 4 is a partial cross-sectional view of a cutting portion of a first handle of a wire stripping tool according to an embodiment of the present invention;

fig. 5 is a perspective view of a wire stripping tool according to an alternative embodiment of the present invention.

Fig. 6A illustrates a perspective view of a position switching mechanism of a wire stripping tool according to an embodiment of the present invention;

fig. 6B shows a perspective view of a handle pivot shaft of a position switching mechanism of a wire stripping tool according to an embodiment of the present invention;

figure 7A shows a perspective view of a wire stripping tool according to an alternative embodiment of the present invention;

figure 7B is an isolated side view of a first handle of a wire stripping tool according to an alternative embodiment of the present invention;

figure 7C is an isolated side view of a second handle of a wire stripping tool according to an alternative embodiment of the present invention;

fig. 8A is a perspective view of a wire stripping tool according to another alternative embodiment of the present invention;

fig. 8B is an exploded perspective view of a wire stripping tool according to another alternative embodiment of the present invention;

figure 8C is a perspective view of a handle pivot shaft of a wire stripping tool according to another alternative embodiment of the present invention;

figure 8D is a partial cross-sectional view of a pivot portion of a wire stripping tool according to another alternative embodiment of the present invention.

Fig. 9A is an exploded perspective view of a wire stripping tool provided with a wire stripping blade in accordance with an embodiment of the present invention;

fig. 9B is a perspective view of a wire stripping tool with a wire stripping blade for stripping wire according to an embodiment of the present invention;

fig. 9C is a front view of a wire stripping blade of a wire stripping tool provided with a wire stripping blade according to an embodiment of the present invention;

fig. 10A is an exploded perspective view of a wire stripping tool provided with a wire stripping blade in accordance with another embodiment of the present invention;

fig. 10B is a perspective view of a wire stripping tool with a wire stripping blade for stripping wire according to another embodiment of the present invention.

Detailed Description

Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The following description is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.

Fig. 1 is an exploded perspective view of a wire stripping tool 1 according to an embodiment of the present invention. As shown in fig. 1, a wire stripping tool 1 for sheathing and winding a cable according to the present invention includes a first handle 10 and a second handle 20, the first handle 10 includes a cutting portion 12, a pivot portion 14 and a holding portion 16, the second handle 20 includes a clamping portion 22, a pivot portion 24 and a holding portion 26, the first handle 10 and the second handle 20 are pivotably connected at the pivot portion 14 of the first handle 10 and the pivot portion 24 of the second handle 20, so that the wire stripping tool 1 is in an "X" shape as a whole. In use, a user grips the grip portion 16 of the first handle 10 and the grip portion 26 of the second handle 20, pivots the second handle 20 relative to the first handle 10, clamps the sheathed wrap cable between the cutting portion 12 of the first handle 10 and the clamping portion 22 of the second handle 20, and cuts the protective sheath of the sheathed wrap cable using the cutting portion 12 of the first handle 10. The X-shaped arrangement of the first and second handles 10 and 20 enables a user to cut the cable using not only the strength of the wrist and fingers but also the strength of the arm using the principle of leverage, achieving the technical effect of saving labor. In addition, through this kind of arrangement of first handle 10 and second handle 20, compare with the current instrument that needs to dismantle the installation cable with the handle, the utility model discloses a wire stripping instrument only needs open the handle can install the cable to the mounting means of cable has been simplified, according to the utility model discloses a wire stripping instrument 1 makes and to reduce cable clamping time, and convenient operation has improved the efficiency of cutting armor winding cable.

As shown in fig. 2A, the cable C to be cut can be held between the clamping portion 22 between the cutting portion 12 of the first handle 10 and the second handle 20, thereby holding and cutting the cable C. Returning to fig. 1, after the cable C is held between the cutting portion 12 and the grip portion 22, the disc-shaped cutting blade 35 accommodated in the cutting portion 10 of the first handle 10 is driven by the crank 60, so that the cutting blade 35 is rotated and reciprocally translated in the extending direction of the cable C as described later, thereby cutting the armored skin of the cable C. The cutting blade 35 is accommodated in the cutting part 12 of the first handle 10 to prevent the hand or body of the user from being injured.

Various aspects of the stripping tool are described in detail below in conjunction with the following figures.

1.V-shaped Cable clamping part

Fig. 2A to 2D show a cable clamping state and corresponding features of a wire stripping tool according to an embodiment of the present invention. In particular, in the embodiment shown in fig. 2A and 2B, a "V" shaped opening 222 is formed in the gripping portion 22 of the second handle 20 of the stripping tool 1, facing the cutting portion 12 of the first handle 10. As shown in fig. 2A, when the cable C is clamped to the stripping tool 1, the cable C can be placed in the V-shaped opening 222 of the clamping portion 22. The different outer diameters of the cables C, and hence the different depths to which the cables C are placed in the "V" shaped openings 222 of the clamping portions 22, make the stripping tool 1 particularly suitable for large armoured wrap cables. Furthermore, the opening 222 ensures that the stripping tool 1 grips the cable C stably so that the cutting blade is aligned with the cable core of the cable C.

Preferably, as shown in fig. 1 and 2C, one or more ribs 224 are formed on the clamping surface of the V-shaped opening 222 of the clamping portion 22 of the second handle 20 of the wire stripping tool 1, which are arranged side by side in conformity with the outer shape of the cable C.

As shown in fig. 2D, each rib 224 protrudes into a recessed portion of the undulating outer surface of the cable C, thereby helping to clamp the cable C in place against movement of the cable C along the longitudinal axis of the cable C.

2. Dual cam design for drive mechanism

Fig. 3 shows a first handle 10 of a wire stripping tool according to an embodiment of the present invention. As shown in fig. 3, the cutting portion 12 of the first handle 10 of the stripping tool 1 includes a drive mechanism 50, the drive mechanism 50 including a cam shaft 52, a first cam 54, a second cam 56, and a driver. The first cam 54 and the second cam 56 are located on both sides of the first handle 10. The camshaft 52 passes through an elongated mounting hole 128 at the bottom of the cutting section 12, the size of the mounting hole 128 being larger than the diameter of the camshaft 52, so that the camshaft 52 can translate in the mounting hole 128 and can be displaced up and down. One end of the cam shaft 52 is integrated with the first cam 54, or one end of the cam shaft 52 is fixedly connected with the first cam 54, the other end of the cam shaft 52 is engaged with the second cam 56, the first cam 54 and the second cam 56 have the same profile, and the first cam 54 and the second cam 56 are arranged to rotate together with the same phase. The second cam 56 may be formed at one end of the crank 60, and the second cam 56, the cam shaft 52, the first cam 54, and the cutting blade 35 are driven to rotate together by the crank 60 as a driver. A flat portion 522 is formed at the other end of the camshaft 52. A flat hole 562 that fits the flat portion 522 of the camshaft 52 is formed in the second cam 56, thereby enabling the first cam 54 to rotate together with the second cam 56 in the same phase. The cutting blade may be attached to the first cam 54 in various ways. In the embodiment shown in fig. 1, a threaded hole 542 is formed at a position of the first cam 54 corresponding to the rotational axis of the camshaft 52. The cutter set screw 58 is threaded through the central hole 36 in the circular cutting blade 35 into the threaded hole 542 in the first cam 54. Thereby, the cutting blade 35 is fixed to the side of the first cam 54 opposite to the cam shaft 52, so that the cutting blade 35 can rotate together with the cam shaft 52. In another embodiment shown in fig. 3, the side of the first cam 54 has a polygonal mounting protrusion 545 extending along the rotational axis, and the mounting protrusion 545 is coupled to a correspondingly shaped mounting hole 62 in the center of the cutting blade 35.

As shown in fig. 3, a recess 127 having one side and a lower portion opened is formed in the first side of the cutting part 12 of the first handle 10 to accommodate the cam shaft 52, the first cam 54, and the cutting blade 35 coupled to the first cam such that the blade portion of the cutting blade 35 is exposed only at the lower cutting position after mounting, and the rest direction is enclosed by a sidewall of the recess 127 to prevent an operator from being accidentally injured. A first cam groove 122 corresponding to the first cam 54 is formed on an inner wall of the recess 127. Accordingly, as shown in the cross-sectional views of fig. 3 and 4, an extension 125 and a mounting block 126 located at the end of the extension 125 extend from the second side of the cutting portion 12. A second cam groove 123 corresponding to the second cam 56 is formed on the outer side surface of the mounting block portion 126. As shown, the first cam groove 122 and the second cam groove 123 are rectangular grooves having the same shape. The profile of the first cam 54 and the profile of the second cam 56 are designed such that: the first cam 54 abuts against a pair of opposite side walls 124 (long sides of the rectangular groove) perpendicular to the cable C in the circumferential inner wall of the first cam groove 122, respectively, during rotation, without contacting the other pair of side walls 129 of the rectangular groove; similarly, the second cam 56 abuts against a pair of opposite side walls (long sides of the rectangular groove) perpendicular to the cable C in a circumferential inner wall (not shown in the drawings) of the second cam groove, respectively, during the rotation, without contacting with the other pair of side walls of the rectangular groove. Thus, when the first cam 54 and the second cam 56 rotate together in the same phase, the first cam 54 and the second cam 56 are intermittently pushed by the side walls of the long sides of the rectangular groove, so that the cam shaft 52 is reciprocally translated in the extending direction of the cable C, and the cutting blade 35 is reciprocally moved in the extending direction of the cable C while rotating to cut the armor skin of the cable C. The reciprocating movement increases the cutting range, making the cutting more efficient.

In one embodiment, the first cam 54 and the second cam 56 are implemented as eccentric wheels, i.e. the wheel body itself is circular, but the camshaft 52 is mounted in an eccentric position in the wheel body.

Additionally, as shown in fig. 1, the same spacer 57 may be provided between the first cam 54 and the inner side wall of the first cam groove 122 and between the second cam 56 and the inner side wall of the second cam groove. The outer shape of the spacer 57 conforms to the circumferential inner walls 124 and 124 of the first and second cam grooves 122 and 122. The washer 57 has an elongated through hole 572 formed therein in correspondence with the elongated mounting hole 128 in the bottom of the cutting portion 12 for the camshaft 52 to pass through. As the first and second cams 54, 56 rotate, the cam shaft 52 is able to reciprocally translate within the elongated through hole 572.

The utility model discloses a two cam designs make first cam 54 and second cam 56 receive the drive of the circumference inner wall 124 of first cam groove 122 and the circumference inner wall of second cam groove respectively to make camshaft 52's atress comparatively evenly balanced, reduce camshaft 52 the incline in cutting process, thereby reduce the card pause of wire stripping instrument 1 when the cutting, make the cutting go on high-efficiently.

3. Spring loading mechanism

Figure 4 is a partial cross-sectional view of the cutting portion of the first handle of the wire stripping tool according to an embodiment of the present invention. As shown in fig. 1 and 4, the extension 125 of the cutting portion 12 of the first handle 10 of the wire stripping tool 1 is provided with a spring-loaded mechanism 70, the spring-loaded mechanism 70 comprising an adjusting spring 72 and an adjusting screw 74, the adjusting spring 72 being arranged to be disposed in a through hole 75 perpendicular to the cam shaft 52 and to apply a spring force with a second end abutting the cam shaft 52 in a direction towards the cable C. Both ends of the through hole 75 are threaded, and an adjustment screw 74 is screwed on the upper end of the through hole and abuts against the first end of the adjustment spring 72 for changing the position of the adjustment spring 72 in the through hole 75. As shown, cam shaft 52 extends through cutting portion 12 of first handle 10 of stripping tool 1, and is supported by cutting portion 12, and cutting blade 35 extends beyond cutting portion 12 of first handle 10 by a cutting depth D. When the cable C is clamped between the cutting portion 12 of the first handle 10 and the clamping portion 22 of the second handle 20, the cable C is clamped between the cutting blade 35 and the previously described "V" shaped opening 222 of the clamping portion 22 of the second handle 20. While cable C applies a reactive force to cutting blade 35 against the force of adjustment spring 72, forcing cutting blade 35 to retract a distance or fully inside cutting portion 12. As the cut progresses, the cutting blade 35 is gradually extended into the cable by the spring force until the maximum cutting depth D is reached.

Due to the arrangement of the adjustment spring 72, the cutting force exerted by the cutting blade 35 of the stripping tool 1 on the cable C is the same, i.e. remains the spring force of the adjustment spring 72, even if the gripping force exerted by the user is different. The spring force of the adjusting spring 72 can be changed by screwing the adjusting nut 74, and the adjusting spring 72 is compressed and the spring force is increased by screwing the adjusting nut 74 downwards; conversely, by screwing the adjusting nut upward, the adjusting spring 72 is loosened and the spring force is reduced. The adjustment nut 74 may be appropriately threaded to maintain a constant spring force as the cutting blade 35 wears. Thus, the stripping tool 1 provides a substantially consistent cutting force regardless of the hand strength of the user of the stripping tool 1, thereby improving cutting performance.

4. Cutting depth adjusting mechanism

Still referring to fig. 4, the other end of the through hole 75 is provided with a stopper nut 77 as a cutting depth adjusting mechanism. The end of the stop nut 77 abuts the cam shaft 52 from the side opposite the adjusting spring 72, thereby defining the maximum position of the up-and-down movement of the cam shaft 52, i.e., the cutting depth D. When the stop nut 77 is screwed, the cutting depth D can be varied, i.e. the cutting depth of the cutting section 12 can be adjusted by means of the stop nut 77, ensuring that the cutting blade 35 can cut various types of cables without damaging the inner cables of the cable C.

5. Driver

Returning to FIG. 1 and as described above, the drive in one embodiment includes a rocker handle 60. One end of the rocker handle 60 is integrally joined or fixedly connected with the second cam 56. The other end of the handle 60 is provided with a wheel 80, the wheel 80 includes a bowl-shaped body 82 and a cylindrical sleeve 84, a wheel shaft 86 is accommodated in the sleeve 84 of the wheel 80, a wheel fixing screw 89 is connected to one end of the wheel shaft 86, and the wheel 80 is rotatably fixed to the end of the handle 60, so that a user can drive the handle 60 to rotate around the cam shaft 52 and together with the cam shaft 52 by holding the wheel 80, and drive the cutting blade 35 to make a rotational and simultaneous translational movement. A plurality of spare cutting blades 35 can be stored in the body 82 of the runner 80, and the plurality of cutting blades 35 are threaded together with screws 88 held at the other end of the runner shaft 86.

In one embodiment, up to 5 spare tools can be stored in the wheel 80.

Fig. 5 is a perspective view of a wire stripping tool according to an alternative embodiment of the present invention. As shown in fig. 5, instead of the rocker handle 60, the driver may include a motor 90 to effect a powered driving of the cutting blade 35. The switching and speed of the motor 90 can be controlled by a specific button.

6. Position switching mechanism

Fig. 6A to 8D show various embodiments of a position switching mechanism of a wire stripping tool according to embodiments of the present invention. As shown in fig. 6A, the wire stripping tool 1 includes a position switching mechanism 40 for switching the hinge position between the first handle 10 and the second handle 20, thereby changing the distance between the cutting portion and the clamping portion of the wire stripping tool 1 for different size cables. As shown in connection with fig. 1, the position switching mechanism 40 includes a position switching hole 42 formed at the pivot portion 14 of the first handle 10, a position adjusting hole 44 formed at the pivot portion 24 of the second handle 20, a handle pivot shaft 45, and a fixing nut 48, so that the first handle 10 and the second handle 20 can be in two or more relative positions, thereby enabling the stripping tool 1 to accommodate cables C of different diameters.

The position switch aperture 42 is closer to the cutting portion 12 of the first handle 10 and the position adjustment aperture 44 is closer to the gripping portion 22 of the second handle 20, facilitating leverage of the stripping tool 1. The handle pivot shaft 45 passes through the position switching hole 42 and the position adjusting hole 44.

As shown in fig. 6A and 6B, the handle pivot shaft 45 includes a cap portion 46, a shaft portion 47, and a threaded portion 49, the cap portion 46 being provided at one end of the shaft portion 47 of the handle pivot shaft 45 and abutting against the outside of the first handle 10, for example, and the threaded portion 49 being provided at the other end of the shaft portion 47 of the handle pivot shaft 45 and capable of passing out to the outside of the second handle 20, for example, at least partially. The threaded portion 49 of the handle pivot shaft 45 is capable of cooperating with the fixing nut 48, fastening the first handle 10 and the second handle 20 together, and enabling the two to pivot relative to each other.

Returning to fig. 1, the position adjustment hole 44 of the second handle 20 is an oblong or elliptical through-hole. The position switching hole 42 of the first handle 10 is a through hole in a dumbbell shape. The shaft portion 47 of the handle pivot shaft 45 has an oblong or oval cross-section. By rotating the handle pivot shaft 45 in this way, the shaft portion 47 can be moved in the position switching hole 42 through the waist portion of the position switching hole 42 with a narrow cross section. When the handle pivot shaft 45 is moved into position, the movement of the shaft portion 47 through the position switching hole 42 can be restricted by rotating the handle pivot shaft 45.

Those skilled in the art will appreciate that a variety of ways may be utilized to bring the two handles into two or more relative positions.

As an alternative embodiment, as shown in fig. 7A-7C, the position switch hole 42 of the first handle 10 is an elongated through hole. Further, a plurality of position switching grooves 41 having an arc shape are provided inside the first handle 10. As shown in the drawing, 3 arc-shaped position switching grooves 41 are provided on the inner side of the first handle 10. As shown in fig. 7C, one position regulating protrusion 43 having an arc shape is provided on the inner side of the second handle 20. When it is necessary to adjust the relative positions of the first handle 10 and the second handle 20, the shaft portion 47 of the handle pivot shaft 45 is moved in the position switching hole 42 of the first handle 10. Subsequently, by fitting one position adjustment protrusion 43 of the second handle 20 into one position switching groove 41 of the plurality of position switching grooves 41 of the first handle 10, the arc-shaped position adjustment protrusion 43 can slide in the mating position switching groove 41, so that the second handle 20 can pivot with respect to the first handle 10, but cannot translate with respect to the first handle 10.

As another alternative embodiment, as shown in fig. 8A-8D, the pivot portion 24 of the second handle 20 is formed hollow. The pivot portion 14 of the first handle 10 passes through the hollow pivot portion 24 of the second handle 20. As shown in fig. 8B, the position switching hole 42 of the first handle 10 is an elongated hole with internal teeth 421. As shown in fig. 8C, the handle pivot shaft 45 includes a cap portion 46 and a shaft portion 47. Shaft portion 47 includes, in order in a direction away from cap portion 46, a small diameter portion 472, an external tooth portion 474, and a large diameter portion 476. The outer teeth 474 include a plurality of outer teeth 478 formed on either side of the handle pivot shaft 45 relative to the longitudinal axis of the handle pivot shaft 45. The planes in which the external teeth 478 on both sides are located are parallel to each other. The large diameter portion 476 protrudes in the radial direction beyond the external tooth portion 474.

As shown in fig. 8D, after assembly, the handle pivot shaft 45 passes through the position switching hole 42 of the first handle 10 and the position adjusting hole 44 of the second handle 20, and the pre-tension spring 451 abuts against the cap portion 46 of the handle pivot shaft 45 and against the first handle 10, thereby applying tension between the cap portion 46 of the handle pivot shaft 45 and the first handle 10 so that the large diameter portion 476 of the handle pivot shaft 45 abuts against the side of the first handle 10 opposite to the pre-tension spring 451. At this time, the outer teeth 478 of the outer teeth 474 of the handle pivot shaft 45 can be meshed with the inner teeth 421 of the position switching hole 42 of the first handle 10, and the large diameter portion 476 of the handle pivot shaft 45 is received in the position adjusting hole 44 of the second handle 20. At this time, the first handle 10 is formed in fixed connection with the handle pivot shaft 45, and the second handle 20 can pivot relative to the first handle 10 about the handle pivot shaft 45. When it is desired to adjust the position of the handle pivot shaft 45, the user presses the cap portion 46 of the handle pivot shaft 45 along the longitudinal axis of the handle pivot shaft 45, the large diameter portion 476 of the handle pivot shaft 45 slides outward in the position adjustment hole 44 of the second handle 20, and the small diameter portion 472 of the handle pivot shaft 45 is guided to move to the position of the original outer tooth portion 474, so that the outer teeth 478 of the outer tooth portion 474 of the handle pivot shaft 45 no longer mesh with the inner teeth 421 of the position switching hole 42 of the first handle 10. Thereby enabling the second handle 20, together with the handle pivot axis 45, to translate relative to the first handle 10, thereby adjusting the relative position of the two. When adjusted in position, the user releases the handle pivot shaft 45, and the large diameter portion 476 of the handle pivot shaft 45 slides inwardly in the position adjustment hole 44 of the second handle 20 by the restoring force of the pretensioned spring 451, guiding the outer teeth 478 of the outer teeth portion 474 of the handle pivot shaft 45 back to the position where they engage with the inner teeth 421 of the position switch hole 42 of the first handle 10, thereby pivotally connecting the first handle 10 and the second handle 20 at a new position.

7. Design of grip part

In various embodiments, as shown in fig. 1, 6A and 8A, a spring may be provided between the grip portion 26 of the second handle 20 and the grip portion 16 of the first handle 10 of the stripping tool 1 to automatically open the handles after the clamping process is completed.

In the illustrated embodiments, the spring is a leaf spring 30. However, it will be appreciated by those skilled in the art that the spring may take other forms, such as a coil spring, etc., so long as it is capable of spreading the two handles apart.

In addition, the shape of the gripping portion of the handle is also ergonomically designed to facilitate gripping and force application.

8. Wire stripping blade

Typically, the interior of the outer protective shell of an armored cable comprises a plurality of strands of cable with plastic insulation. In practice, after cutting the protective casing with the tool of the present invention, it is often necessary to cut off and remove the insulating layer from the cable inside in order to make the electrical connection. In the embodiment of the present invention shown in fig. 9A-10B, a wire stripping tool for cutting the inner cable of an armored cable and stripping the insulation layer of the cable is provided. Referring to fig. 9A and 9B, a first wire stripping blade 100 is provided on the cutting portion 12, particularly on the side closer to the handle 60, and a second wire stripping blade 200 is provided on the clamping portion 22, particularly on the side closer to the handle 60. The first and second stripping blades 100, 200 are capable of cooperating to cut and strip a cable when the first and second handles 10, 20 are clamped together.

As shown in fig. 9B, the armored cable is cut and/or stripped by extending between the first and second stripping blades 100 and 200 in a direction transverse to the direction in which the armored wound cable C is wound.

As shown in fig. 9C, the first and second stripping blades 100 and 200 have a rectangular shape. The first and second stripping blades 100, 200 have a plurality of semicircular cutting edges 104, 204 formed along the length of the first and second stripping blades 100, 200, which are gradually increased from the ends of the first and second stripping blades 100, 200, and serve as a stripping area. The size of the cutting edges 104, 204 increases gradually, so that the first and second stripping blades 100, 200 can be adapted to cables with different diameters. Preferably, screw holes 106, 206, which may be completely or partially circular, are provided on opposite sides of the first and second stripping blades 100, 200 for fastening the first stripping blade 100 to the first handle 10 and the second stripping blade 200 to the second handle 20 with screws. Preferably, two screw holes 106, 206 are provided in the first and second stripping blades 100, 200. One skilled in the art can envision that one or more than two screw holes may be provided. It is also contemplated by those skilled in the art that the first wire stripping blade 100 can be secured to the first handle 10 and the second wire stripping blade 200 can be secured to the second handle 20 in other ways, such as by adhesive, welding, form-fitting securement, and the like.

Referring again to fig. 9A and 9B, the first and second stripping blades 100 and 200 are arranged such that the ramped surfaces 102 and 202 of the first and second stripping blades 100 and 200 face each other and the cutting edges 104 and 204 of the first and second stripping blades 100 and 200 oppose each other such that the same size cutting edges 104 and 204 mate.

By arranging the first wire stripping blade 100 and the second wire stripping blade 200, the purposes of the wire stripping tool 1 can be increased, tools to be carried are reduced, and the field work is facilitated.

Alternatively or additionally, as shown in fig. 10A, the first stripping blade 100 is disposed on a side remote from the cutting portion 12 relative to the pivot portion 14 of the first handle 10, and the second stripping blade 200 is disposed on a side remote from the clamping portion 22 relative to the pivot portion 24 of the second handle 20. The first and second stripping blades 100, 200 are arranged such that the ramped faces 102, 202 of the first and second stripping blades 100, 200 face each other and the cutting edges 104, 204 of the first and second stripping blades 100, 200 face each other so that the equally sized cutting edges 104, 204 mate.

As shown in fig. 10B, the armored-wrap-removed cable is fed between the first and second stripping blades 100, 200 in a direction transverse to the first and second handles 10, 20 for cutting and/or stripping. Since the first wire stripping blade 100 is disposed near the pivot 14 of the first handle 10 and the second wire stripping blade 200 is disposed near the pivot 24 of the second handle 20, it is possible to reduce the force used when cutting a cable and stripping the insulation of the cable.

It is to be understood that the various embodiments and individual features may be combined in various ways or modified to produce further different embodiments.

The wire stripping tool according to the preferred embodiments of the present invention has been described above with reference to specific embodiments. It will be understood that the above description is intended to be illustrative and not restrictive, and that various changes and modifications may be suggested to one skilled in the art in view of the above description without departing from the scope of the invention. Such variations and modifications are also intended to be included within the scope of the present application.

Claims (20)

1. A stripping tool for armoured wrap cables, characterized in that it comprises a first handle (10) and a second handle (20), said first handle (10) comprising a cutting portion (12), a pivot portion and a gripping portion, said second handle (20) comprising a clamping portion (22), a pivot portion and a gripping portion, said first handle (10) and said second handle (20) being pivotally connected "X" at said pivot portion of said first handle (10) and said pivot portion of said second handle (20) such that a user can clamp said armoured wrap cable between said cutting portion (12) of said first handle (10) and said clamping portion (22) of said second handle (20) by gripping said gripping portion of said first handle (10) and said gripping portion of said second handle (20) to pivot said second handle (20) relative to said first handle (10) to cut said cable (C) with said cutting portion (12) of said first handle (10).

2. Stripping tool according to claim 1, characterized in that a laterally projecting "V" -shaped opening (222) is formed in the clamping portion (22) of the second handle (20) of the stripping tool towards the gripping portion of the second handle (20).

3. Stripping tool according to claim 2, characterized in that one or more ribs (224) are provided in the "V" -shaped opening (222) of the clamping portion (22) which conform to the outer shape of the cable (C) and are arranged side by side.

4. Stripping tool according to claim 1, characterized in that the cutting section (12) of the first handle (10) of the stripping tool comprises a drive mechanism (50) for driving a cutting blade (35), the drive mechanism (50) comprising a cam shaft (52), a first cam (54), a second cam (56) and a driver, one end of the cam shaft (52) being integral or fixedly connected with the first cam (54), the other end of the cam shaft (52) cooperating with the second cam (56), the first cam (54) and the second cam (56) having the same profile, and the first cam (54) and the second cam (56) being arranged to be driven in rotation together in the same phase by the driver.

5. Wire stripping tool according to claim 4, characterized in that a first cam groove (122) and a second cam groove (123) are formed on both sides of the cutting portion (12) of the first handle (10), respectively, which cam grooves are adapted to the first cam (54) and the second cam groove (56), respectively, and the first cam groove (122) and the second cam groove (123) are elongated grooves, and during the rotation of the first cam (54) and the second cam (56), a pair of side walls of the first cam groove (122) and the second cam groove (123) periodically abut against cam surfaces of the first cam (54) and the second cam (56), thereby pushing the first cam (54), the second cam (56) and the cutting blade (35) connected to the first cam (54) to make a reciprocating translation while making a rotational movement.

6. Stripping tool according to claim 4, characterized in that the cutting section (12) of the first handle (10) of the stripping tool is provided with a spring-loaded mechanism (70), the spring-loaded mechanism (70) comprising an adjusting spring (72) and an adjusting screw (74) provided in a through hole (75) of the cutting section (12), the through hole (75) being perpendicular to the cam shaft (52) such that the adjusting spring (72) is arranged with one end abutting the cam shaft (52) exerting a spring force in a direction towards the cable (C), the adjusting screw (74) being screwed at a first end of the through hole (75) and abutting the other end of the adjusting spring (72).

7. Stripping tool according to claim 6, characterized in that it further comprises a cutting depth adjusting mechanism comprising a stop nut (77) screwed on the second end of the through hole (75), said stop nut (77) abutting the cam shaft (52) from the side opposite to the adjusting spring (72), defining the range of movement of the cam shaft (52) in the up-down direction, the cutting depth (D) of the cutting blade (35) attached to the first cam (54) being changeable by screwing the stop nut (77).

8. Stripping tool according to claim 4, characterized in that the driver comprises a crank (60), one end of the crank (60) being integrally joined or fixedly connected to the second cam (56), the other end of the crank (60) being provided with a wheel (80), the wheel (80) comprising a bowl-shaped body (82) and a cylindrical sleeve (84), a wheel shaft (86) being accommodated in the sleeve (84) of the wheel (80), a wheel fixing screw (89) passing through the wheel shaft (86) for fixing the wheel (80) at the end of the crank (60) in a rotatable manner, the body (82) of the wheel (80) being capable of storing a plurality of spare cutting blades (35).

9. Stripping tool according to claim 4, characterized in that the driver comprises a motor (90).

10. Stripping tool according to claim 1, characterized in that a spring is arranged between the grip part of the second handle (20) and the grip part of the first handle (10) of the stripping tool.

11. Stripping tool according to claim 1, characterized in that it comprises a position switch mechanism (40), the pivot of the first handle (10) and the pivot of the second handle (20) being pivotally connected together by the position switch mechanism (40), the position switch mechanism comprising a position switch hole (42) formed at the pivot of the first handle (10), a position adjustment hole (44) formed at the pivot of the second handle (20), a handle pivot shaft (45) passing through the position switch hole (42) and the position adjustment hole (44), such that the first handle (10) and the second handle (20) can assume two or more relative positions.

12. Stripping tool according to claim 11, characterized in that the position switching hole (42) of the position switching mechanism (40) is formed in a dumbbell shape, the position adjusting hole is formed in an oblong shape or an oval shape, the shaft portion (47) of the handle pivot shaft has an oblong or oval cross section, and a threaded portion (49) formed at the tip end of the handle pivot shaft (45) is engaged with a fixing nut (48).

13. Stripping tool according to claim 11, characterized in that the position switch hole (42) of the position switch mechanism (40) is an elongated through hole, that an arc-shaped plurality of position switch grooves (41) are provided on the inner side of the first handle (10), and that an arc-shaped one position adjustment projection (43) is provided on the inner side of the second handle (20), and that the position adjustment projection (43) can be inserted into and slide in any one of the plurality of position switch grooves.

14. Wire stripping tool according to claim 11, characterized in that the position switching hole (42) of the position switching mechanism (40) at the first handle (10) is an elongated hole with internal teeth (421), the handle pivot shaft (45) comprises a cap part (46) and a shaft part (47), the shaft part (47) comprises a small diameter part (472), an external teeth part (474) and a large diameter part (476) in sequence in a direction away from the cap part (46), the external teeth part (474) is engaged with the internal teeth (421), the pretension spring (451) abuts between the cap part (46) of the handle pivot shaft (45) and the first handle (10), and the large diameter part (476) of the handle pivot shaft (45) is received in the position adjustment hole (44) of the second handle (20).

15. Stripping tool according to claim 4, characterized in that a recess (127) which is open towards the one side and the lower part is formed on one side of the cutting section (12) for accommodating the cam shaft (52), the first cam (54) and the cutting blade (35) such that, when mounted, the cutting edge of the cutting blade (35) is exposed only in the lower cutting position, the remaining direction being enclosed by the side wall of the recess (127).

16. Stripping tool according to claim 1, characterized in that a first stripping blade (100) is arranged on the first handle (10) and a second stripping blade (200) is arranged on the second handle (20), the first stripping blade (100) and the second stripping blade (200) being able to cut and strip an armored cable when the first handle (10) and the second handle (20) are clamped.

17. Wire stripping tool according to claim 16, characterized in that the first and second stripping blades (100, 200) are rectangular, that a slope is formed on one side of the first and second stripping blades (100, 200), and that a plurality of semicircular cutting edges are provided along the length of the first and second stripping blades (100, 200) which gradually increase from the ends of the first and second stripping blades (100, 200), that the first and second stripping blades (100, 200) are arranged such that the slope of the first and second stripping blades (100, 200) faces each other, and that the cutting edges of the first and second stripping blades (100, 200) face each other, such that the cutting edges of the first and second stripping blades (100, 200) of the same size are paired with each other.

18. Stripping tool according to claim 17, characterized in that screw holes (106, 206) in the form of a complete or partial circle are provided on opposite sides of the first and second stripping blades (100, 200) for fastening the first stripping blade (100) to the first handle (10) and the second stripping blade (200) to the second handle (20) by means of screws.

19. Stripping tool according to claim 16, characterized in that the first stripping blade (100) is arranged on the cutting portion (12) of the first handle (10) and the second stripping blade (200) is arranged on the clamping portion (22) of the second handle (20).

20. Stripping tool according to claim 16, characterized in that the first stripping blade (100) is arranged on the side facing away from the cutting section (12) with respect to the pivot of the first handle (10), and the second stripping blade (200) is arranged on the side facing away from the clamping section (22) with respect to the pivot of the second handle (20).

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