CN106374320B

CN106374320B - Cable outer sheath stripping tool

Info

Publication number: CN106374320B
Application number: CN201510653388.XA
Authority: CN
Inventors: 钟贵森; 孙延栋; 赵光富; 邱金海
Original assignee: State Grid Corp of China SGCC; Weifang Power Supply Co of State Grid Shandong Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Weifang Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date: 2015-10-11
Filing date: 2015-10-11
Publication date: 2020-02-14
Anticipated expiration: 2035-10-11
Also published as: CN106374320A

Abstract

The invention discloses a cable outer sheath stripping tool, which comprises an upper transverse groove with a downward notch, wherein a front wheel is rotatably mounted in the upper transverse groove through a front shaft, a rear wheel is also rotatably mounted in the upper transverse groove through a rear shaft, ring grooves which are in limit fit with cables are formed in the peripheries of the front wheel and the rear wheel, a rotating shaft which is parallel to the front shaft and the rear shaft is further mounted in the upper transverse groove between the front wheel and the rear wheel through a lifting device, a disc blade corresponding to the ring grooves is coaxially mounted on the rotating shaft, and limit rings are fixedly arranged on two sides of the disc blade. The advantages and effects are as follows: it is rational in infrastructure, can cut the cable oversheath fast, cutting position is fixed, and cutting depth is controllable, and cutting accuracy is high, operates safe and reliable, does not receive the influence of cable roll slip, does not have the incised wound finger risk, can skin to soft or thin cable and can skin stereoplasm or thick cable again, alone can operate, and easy operation is convenient, helps improving the efficiency of skinning.

Description

Cable outer sheath stripping tool

Technical Field

The invention relates to a stripping tool for an outer sheath of a cable.

Background

When the electrical equipment of the transformer substation is constructed, a control cable needs to be laid and connected. Before wiring, the control cable needs to cut open the outer rubber sheath of the cable according to the required length (from one meter to several meters), and separate the single copper conductor. The existing working mode is manual cutting with a knife, and because the periphery of the cable is cylindrical, when the cable is peeled and cut by a common knife, the phenomenon that the cable rolls and slips is easily caused due to unbalanced stress of the cable, the cable is very unsafe, fingers are easily cut, time and labor are wasted, and once success cannot be guaranteed.

When an electric power worker peels a cable, one hand usually holds the cable reversely, the other hand takes an electrician knife to cut the cable from the middle forcefully, and the plastic outer skin is slippery, so that the electric power worker often slips sideways when peeling the cable, fingers are injured, and other people are often needed for assisting the peeling process; when peeling, the force is exerted on the wrist, the wrist can be ache and tired after a plurality of times, and the working efficiency is greatly reduced; in addition, because the cable is internally coated with the steel (copper) armor protective layer, a common cutter is easy to damage a blade under the sliding and cutting actions.

Disclosure of Invention

The invention aims to solve the technical problems of providing a cable outer sheath stripping tool which is reasonable in structure, capable of rapidly cutting a cable outer sheath, fixed in cutting position, controllable in cutting depth, high in cutting precision, safe and reliable in operation, free of influence of rolling and slipping of a cable, free of finger cutting risks, capable of stripping soft or thin cables and hard or thick cables, capable of being operated by one person, simple and convenient to operate and beneficial to improvement of stripping efficiency.

In order to solve the technical problem, the cable outer sheath stripping tool has the structural characteristics that: including the last transverse groove that the notch set up downwards, go up the transverse groove and install the front wheel through the rotation of front axle in, go up the transverse groove and still rotate through the rear axle in and install the rear wheel, all be equipped with in front wheel and the rear wheel periphery with the spacing complex annular of cable, still install the pivot with front axle and rear axle parallel arrangement through elevating gear in the last transverse groove between front wheel and the rear wheel, coaxial arrangement has the disc blade that corresponds with the annular in the pivot, disc blade both sides have set firmly the spacing ring.

This instrument is shelled to cable oversheath is rotated cutting structure through spacing formula and is realized cutting the cable oversheath fast, and cutting position is fixed, and cutting depth is controllable, and cutting accuracy is high, and operation safe and reliable does not receive the cable roll and skids the influence, does not exist and cuts the finger risk, can skin to soft or thin cable and can skin to stereoplasm or thick cable again, alone can operate, and easy operation is convenient, helps improving the efficiency of skinning.

The limiting type rotary cutting structure mainly comprises a front wheel, a rear wheel and a disc blade which are arranged on an upper transverse groove, wherein the upper transverse groove is of a groove-shaped structure with a downward opening and is provided with a groove inner cavity and a groove wall, and the front wheel, the rear wheel and the disc blade are arranged in the groove inner cavity. The front wheel is rotatably arranged at the front part of the upper transverse groove through the front shaft, the rear wheel is rotatably arranged at the rear part of the upper transverse groove through the rear shaft, and the disc blade is arranged in the middle of the upper transverse groove between the front wheel and the rear wheel through the rotating shaft, so that the front wheel, the disc blade and the rear wheel are in a position relation of being sequentially arranged in front, middle and rear. In this patent, front axle, pivot and rear axle are parallel arrangement, and consequently, the face of front wheel, rear wheel and disc blade all is the parallel and level setting. The peripheries of the front wheel and the rear wheel are provided with ring grooves, and the ring grooves have the main function that when cables pass through the peripheries of the front wheel and the rear wheel, the cables can roll along the ring grooves and limit the two sides of the cables, so that the cables are always positioned in the ring grooves in the moving process and cannot roll out. Therefore, the cable is guaranteed to be located in the annular groove as a whole even if the cable rolls over or rolls in the moving process, and the cable is located when moving. In this patent, the disc blades are disposed corresponding to the ring grooves of the front and rear wheels, and thus, the cable must pass through the disc blades as it moves along the ring grooves of the front and rear wheels. Therefore, the disc blade can cut the outer sheath of the cable along with the movement of the cable, the cable moves along the ring groove by a certain length, the disc blade cuts the cable by a certain length, and the operation and the control are very simple. When the novel electric cable is used, two using modes are provided, one mode is that two ends of the cable are placed in annular grooves in the upper portions of the front wheel and the rear wheel, and the middle of the cable is wrapped around the lower half circle of the whole disc blade from the lower portion of the disc blade. Another way is to place the two ends of the cable in the ring grooves below the front wheel and the rear wheel and then wrap the middle part of the cable around the whole upper half circle of the disc blade from above the disc blade. No matter which kind of use method, when holding horizontal groove end and dragging along the cable, the cable all can tend to the straight line orbit, and the cable that passes through disc blade, front wheel and rear wheel is the convex orbit of wrapping the disc blade, consequently goes up horizontal groove and also can tend to the straight line orbit around the cable on the disc blade when dragging, just so makes cable and disc blade oppress each other and realize automatic cutout. The faster the upper transverse slot is pulled relative to the cable, the deeper the depth the disc blade cuts the cable and, conversely, the shallower. In this patent, the disc blade both sides have set firmly the spacing ring, and the main effect of spacing ring is that carry out the degree of depth spacing for disc blade cutting cable oversheath, prevents to appear that disc blade cutting cable oversheath is too dark and leads to the problem of cutting sinle silk, just so makes the cutting depth no longer receive the influence of last horizontal groove translation rate, has improved the cutting accuracy and the quality of this patent greatly. The length of the blade of the disc blade protruding out of the limiting ring is the depth of the disc blade for cutting the cable, the depth of the cable sheath can be controlled to be cut by replacing different disc blades, and the method is very simple.

Elevating gear is including setting up the slide rail of vertical setting on last horizontal inslot cell wall, still including can only following the gliding carriage from top to bottom of slide rail, the pivot is installed on the carriage, goes up the horizontal groove tank bottom and is equipped with the through-hole, and the carriage upper end has set firmly vertical upwards wears out the double-screw bolt of through-hole, has set firmly the upper bracket on going up the horizontal groove, rotates on the upper bracket to install and changes the cover, changes to be equipped with on the cover inner wall with double-screw bolt spiro union complex internal thread.

In the lifting device, the main structure comprises a slide rail arranged on the inner groove wall of the upper transverse groove and a sliding frame in sliding fit with the slide rail, and the sliding frame can only slide up and down along the slide rail. The lifting device also comprises a regulating mechanism for controlling the accurate lifting of the sliding frame, and the regulating mechanism mainly comprises a screw fixedly arranged on the sliding frame and a rotating sleeve arranged on the upper transverse groove, wherein an inner cavity of the rotating sleeve is provided with an internal thread matched with the screw in a threaded manner. Thus, when the sleeve is rotated, the screw and sleeve will move axially relative to each other. In this patent, the commentaries on classics cover passes through the upper bracket and installs on last horizontal groove, and the commentaries on classics cover can only be relative the upper bracket rotation, can not carry out the motion of other modes. Therefore, when the rotary sleeve is driven to rotate, the internal thread of the rotary sleeve raises or lowers the drive screw, namely the drive sliding frame, and the disc blade raises or lowers.

As an improvement, a positioning plate is fixedly arranged on the upper transverse groove, an inner screw hole is formed in the positioning plate, a screw is screwed in the inner screw hole, and positioning holes which are inserted and matched with the screw are uniformly distributed on the periphery of the rotating sleeve.

In this patent, the locating plate sets firmly together with last horizontal trough, and when the screw was rotatory in the interior unthreaded hole on the locating plate, the screw will be relative to the locating plate axial forward or retreat. Because the rotating sleeve is provided with the positioning hole corresponding to the end part of the screw in a ring mode, after the sliding frame is adjusted to the set position by the rotating sleeve, the screw is screwed into the positioning hole corresponding to the end part of the screw when the screw is screwed into the rotating sleeve, so that the rotating sleeve is positioned by the screw and cannot rotate, the positioning of the sliding frame is realized, the positioning of the disc blade is also realized, the precision is accurate when the disc blade is used for cutting a cable, the stability is good, and the problem that the depth is inconsistent when a traditional cutter is used for cutting the outer sheath of the cable is solved.

As a further improvement, the device also comprises a lower transverse groove with an upward notch, a lower support arm extending upwards is fixedly arranged on the groove wall of the lower transverse groove, an upper support arm extending downwards is fixedly arranged on the groove wall of the upper transverse groove, the upper support arm and the lower support arm are fixed together through an extending device, a lower wheel positioned below the disc blade is rotatably arranged in the lower support arm through a lower shaft, and a ring groove in limit fit with a cable is also arranged on the periphery of the lower wheel.

In this patent, go up the horizontal trough below and still be equipped with down the transverse trough, the notch of lower transverse trough upwards sets up, and it is the relative upper and lower relation that sets up of notch that also goes up transverse trough and lower transverse trough. The wall of the lower transverse groove is fixedly provided with a lower supporting arm extending upwards, the wall of the upper transverse groove is fixedly provided with an upper supporting arm extending downwards, and the upper supporting arm and the lower supporting arm are fixed together through an extending device. The inner cavity of the lower transverse groove is rotatably provided with a lower wheel through a lower shaft, and the lower wheel can freely rotate around the lower shaft in the lower transverse groove. In this patent, the periphery of the lower wheel is also provided with a ring groove which mainly acts on the ring grooves on the front wheel and the rear wheel, and also provides a moving space for the flexible and flexible cable or the thin cable to move on the periphery of the lower wheel and limits the two sides of the cable so as to prevent the cable from deviating from the periphery of the lower wheel when rolling. In this patent, the lower wheel sets up in disc blade below, lie in between front wheel and the rear wheel on horizontal, consequently can arrange the cable both ends in front wheel and rear wheel upper portion annular when skinning the cable, and wrap the cable middle part on lower round lower half annular, when controlling horizontal groove relative cable removal on controlling like this, can make the cable only contact with the anterior and the rear portion of disc blade, area of contact when can reducing disc blade and the cutting of cable oversheath like this, reduce frictional resistance, it is more smooth and easy to make the cutting cable. The lower wheel has the second effect, just carries out slick and sly extension and transition with the cable middle part, can make the cable smoothly remove between front wheel, rear wheel and lower wheel when cutting the diameter than thick cable like this, has effectively avoided the quick anxious turn of thick cable between front wheel, rear wheel and disc blade, the phenomenon of the bite when having avoided cutting thick cable, has improved the smooth and easy nature and the commonality of use of this patent greatly.

In this patent, the arrangement of the lower transverse groove and the lower wheel has a second function of assisting in cutting or peeling the outer skin of the hard cable or the thick cable. Since the rigid cable is stiff and therefore not flexible, it is not suitable to be bent in the manner described above and placed in the patent. Even if it is wound around the front, rear and lower wheels under certain conditions, it is difficult to drag and move, resulting in a peeling failure. Similarly, thick cables cannot be bent with a small radius of curvature due to their large wire diameter, and cannot be wound around the front, rear, and lower wheels in the above manner, which also leads to stripping failure. After the lower transverse groove and the lower wheel are arranged, a wider gap exists between a horizontal connecting line of lower outlines of the front wheel and the rear wheel and an upper outline of the lower wheel, the gap is called a peeling gap for convenience of description, and the peeling gap is a space for placing a hard cable or a thick cable. When needs cut or skin hard cable or thick cable, only need with the cable pass should skin the clearance can, just so realized inserting the cable into the purpose of this patent. Because the periphery of front wheel, rear wheel and lower wheel all is provided with the annular with cable matched with, therefore the cable plug-in is adorned after this patent, and the upper and lower both ends of cable not only can be clamped spacing still can carry on spacingly to cable both sides by the annular from top to bottom, makes the cable can not the off tracking, has just so guaranteed that the cable can only follow fixed orbit and remove in the clearance of skinning. Then, the disc blade is adjusted to the proper height by adjusting the lifting device, so that the cutting depth of the cable can be determined. Drag this patent at last, make this patent along cable axial displacement can accomplish the cutting or the work of skinning to stereoplasm cable or thick cable, the operation is very simple. In this patent, the lower brace of lower transverse groove and the last brace of last transverse groove pass through the extension device to be fixed together, consequently, can play the effect of horizontal groove and last transverse groove interval under the adjustment through the adjustment extension device, also adjust the width in clearance of skinning, also the effect of the applicable cable thickness of adjustment, improved the commonality to the different cables of thickness. When the peeling gap is adjusted to the width suitable for the cable through the extension device, the cable can only stably and axially move in the peeling gap, so that the consistency of the depth of the surface skin of the cable cut by the disc blade is ensured, and the cutting quality is ensured.

As an implementation mode, the extension device comprises an extension groove which is arranged on the lower supporting arm and extends up and down, the upper section of the extension groove is in sleeved limit fit with the end part of the rear shaft, a locking hole corresponding to the extension groove is arranged on the upper supporting arm, and a locking bolt is inserted in the locking hole and the extension groove.

In this patent, extension device mainly includes the extension groove that sets up on lower brace and sets up the locking hole on last brace to and the locking bolt of cartridge in locking hole and extension groove. The extension groove is a long-strip-shaped groove extending up and down along the lower support arm, the upper portion of the extension groove is sleeved and assembled with the rear shaft end portion extending out of the upper transverse groove, and therefore the upper portion of the lower support arm can be positioned through a rear shaft inserted into the upper portion of the extension groove. The extension groove middle part corresponds the setting with the locking hole, so through at locking hole and extension groove interpolation dress locking bolt and screw up, can realize going up the effect of brace middle part and lower brace location. Therefore, the lower transverse groove and the upper transverse groove can be fixed through the two positioning functions. When the cable thickness is different, the required extension and buffering length is also different, and the distance between the lower wheel and the disc blade needs to be adjusted. When the adjustment is needed, only the locking bolt needs to be loosened, then the lower transverse groove is moved up and down along the extension groove, the distance between the lower transverse groove and the upper transverse groove is adjusted to a set distance, then the locking bolt is screwed up, the lower transverse groove and the upper transverse groove can be fixed again, and the operation is very simple.

To sum up, adopt the cable oversheath of this kind of structure to open instrument of shelling, rational in infrastructure, can cut the cable oversheath fast, cutting position is fixed, and cutting depth is controllable, and cutting accuracy is high, and operation safe and reliable does not receive the cable roll and skids the influence, does not have the risk of incising the finger, can skin to soft or thin cable and can skin stereoplasm or thick cable again, alone can operate, and easy operation is convenient, helps improving the efficiency of skinning.

Drawings

The invention is described in further detail with reference to the accompanying drawings:

FIG. 1 is a schematic structural view of an upper transverse groove of the present patent;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a schematic structural view of a lower transverse groove of the present patent;

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is a schematic view of the carriage;

FIG. 6 is a schematic view of the construction of a disc blade;

FIG. 7 is a schematic structural diagram of the present patent;

FIG. 8 is a schematic view of the fitting structure of the present patent for stripping thin cables;

fig. 9 is a schematic view of a fitting structure of the present patent when peeling a thick cable.

Detailed Description

As shown in the figure, this instrument is shelled to cable oversheath is opened and is shelled includes last transverse groove 1 that the notch set up downwards, go up the transverse groove and rotate through front axle 2 and install front wheel 3, go up the transverse groove and still rotate through rear axle 4 and install rear wheel 5, all be equipped with in front wheel and the rear wheel periphery with the spacing complex annular 6 of cable, still install pivot 7 with front axle and rear axle parallel arrangement through elevating gear in the last transverse groove between front wheel and the rear wheel, coaxial arrangement has the disc blade 8 that corresponds with the annular in the pivot, disc blade both sides have set firmly spacing ring 28.

The cable outer sheath stripping tool mainly comprises a front wheel, a rear wheel and a disc blade which are arranged on an upper transverse groove, wherein the upper transverse groove is of a groove-shaped structure with a downward opening and is provided with a groove inner cavity and a groove wall, and the front wheel, the rear wheel and the disc blade are arranged in the groove inner cavity. The front wheel is rotatably arranged at the front part of the upper transverse groove through the front shaft, the rear wheel is rotatably arranged at the rear part of the upper transverse groove through the rear shaft, and the disc blade is arranged in the middle of the upper transverse groove between the front wheel and the rear wheel through the rotating shaft, so that the front wheel, the disc blade and the rear wheel are in a position relation of being sequentially arranged in front, middle and rear. In this patent, front axle, pivot and rear axle are parallel arrangement, and consequently, the face of front wheel, rear wheel and disc blade all is the parallel and level setting. The peripheries of the front wheel and the rear wheel are provided with ring grooves, and the ring grooves have the main function that when cables pass through the peripheries of the front wheel and the rear wheel, the cables can roll along the ring grooves and limit the two sides of the cables, so that the cables are always positioned in the ring grooves in the moving process and cannot roll out. Therefore, the cable is guaranteed to be located in the annular groove as a whole even if the cable rolls over or rolls in the moving process, and the cable is located when moving. In this patent, the disc blades are disposed corresponding to the ring grooves of the front and rear wheels, and thus, the cable must pass through the disc blades as it moves along the ring grooves of the front and rear wheels. Therefore, the disc blade can cut the outer sheath of the cable along with the movement of the cable, the cable moves along the ring groove by a certain length, the disc blade cuts the cable by a certain length, and the operation and the control are very simple. When the novel disc blade is used, two using modes are provided, one mode is that two ends of the cable 29 are placed in annular grooves in the upper portions of the front wheel and the rear wheel, and the middle of the cable is wrapped around the lower half circle of the whole disc blade from the lower portion of the disc blade. Another way is to place the two ends of the cable in the ring grooves below the front wheel and the rear wheel and then wrap the middle part of the cable around the whole upper half circle of the disc blade from above the disc blade. No matter which kind of use method, when holding horizontal groove end and dragging along the cable, the cable all can tend to the straight line orbit, and the cable that passes through disc blade, front wheel and rear wheel is the convex orbit of wrapping the disc blade, consequently goes up horizontal groove and also can tend to the straight line orbit around the cable on the disc blade when dragging, just so makes cable and disc blade oppress each other and realize automatic cutout. The faster the upper transverse slot is pulled relative to the cable, the deeper the depth the disc blade cuts the cable and, conversely, the shallower. In this patent, the disc blade both sides have set firmly the spacing ring, and the main effect of spacing ring is that carry out the degree of depth spacing for disc blade cutting cable oversheath, prevents to appear that disc blade cutting cable oversheath is too dark and leads to the problem of cutting sinle silk, just so makes the cutting depth no longer receive the influence of last horizontal groove translation rate, has improved the cutting accuracy and the quality of this patent greatly. The length of the blade of the disc blade protruding out of the limiting ring is the depth of the disc blade for cutting the cable, the depth of the cable sheath can be controlled to be cut by replacing different disc blades, and the method is very simple.

In this patent, elevating gear is including setting up the slide rail 9 of vertical setting on the cell wall of last transverse groove, still including gliding carriage 10 about can only following the slide rail, the pivot is installed on the carriage, goes up the transverse groove tank bottom and is equipped with through-hole 11, and the carriage upper end has set firmly vertical upwards wears out the double-screw bolt 12 of through-hole, has set firmly upper bracket 13 on going up the transverse groove, rotates on the upper bracket to install and changes cover 14, changes to overlap and be equipped with on the inner wall with double-screw bolt spiro union complex internal thread 15.

The upper transverse groove is also fixedly provided with a positioning plate 16, the positioning plate is provided with an inner screw hole 17, a screw 18 is screwed in the inner screw hole, and the periphery of the rotating sleeve is uniformly provided with positioning holes 19 which are inserted and matched with the screw. In this patent, the locating plate sets firmly together with last horizontal trough, and when the screw was rotatory in the interior unthreaded hole on the locating plate, the screw will be relative to the locating plate axial forward or retreat. Because the rotating sleeve is provided with the positioning hole corresponding to the end part of the screw in a ring mode, after the sliding frame is adjusted to the set position by the rotating sleeve, the screw is screwed into the positioning hole corresponding to the end part of the screw when the screw is screwed into the rotating sleeve, so that the rotating sleeve is positioned by the screw and cannot rotate, the positioning of the sliding frame is realized, the positioning of the disc blade is also realized, the precision is accurate when the disc blade is used for cutting a cable, the stability is good, and the problem that the depth is inconsistent when a traditional cutter is used for cutting the outer sheath of the cable is solved.

This patent still includes the lower transverse trough 20 that the notch upwards set up, has set firmly the lower brace 21 that upwards extends on the lower transverse trough cell wall, has set firmly the last brace 22 that downwards extends on the last transverse trough cell wall, goes up the brace and is in the same place through extending device is fixed with lower brace, rotates through lower axle 23 in the lower brace and installs the lower wheel 24 that is located the disc blade below, also is equipped with in the lower wheel periphery with the spacing complex annular 6 of cable. In this patent, go up the horizontal trough below and still be equipped with down the transverse trough, the notch of lower transverse trough upwards sets up, and it is the relative upper and lower relation that sets up of notch that also goes up transverse trough and lower transverse trough. The wall of the lower transverse groove is fixedly provided with a lower supporting arm extending upwards, the wall of the upper transverse groove is fixedly provided with an upper supporting arm extending downwards, and the upper supporting arm and the lower supporting arm are fixed together through an extending device. The inner cavity of the lower transverse groove is rotatably provided with a lower wheel through a lower shaft, and the lower wheel can freely rotate around the lower shaft in the lower transverse groove. In this patent, the lower wheel periphery also is equipped with the annular, and it is the same with the annular that mainly acts on front wheel and the rear wheel, also provides the removal space and carries on spacingly to cable both sides for the removal of cable in the lower wheel periphery to prevent that the cable from deviating from the lower wheel periphery when rolling. In this patent, the lower wheel sets up in disc blade below, lie in between front wheel and the rear wheel on horizontal, consequently can arrange the cable both ends in front wheel and rear wheel upper portion annular when skinning the cable, and wrap the cable middle part on lower round lower half annular, when controlling horizontal groove relative cable removal on controlling like this, can make the cable only contact with the anterior and the rear portion of disc blade, area of contact when can reducing disc blade and the cutting of cable oversheath like this, reduce frictional resistance, it is more smooth and easy to make the cutting cable. The lower wheel has the second effect, just carries out slick and sly extension and transition with the cable middle part, can make the cable smoothly remove between front wheel, rear wheel and lower wheel when cutting the diameter than thick cable like this, has effectively avoided the quick anxious turn of thick cable between front wheel, rear wheel and disc blade, the phenomenon of the bite when having avoided cutting thick cable, has improved the smooth and easy nature and the commonality of use of this patent greatly.

The extension device comprises an extension groove 25 which is arranged on the lower supporting arm and extends up and down, the upper section of the extension groove is in limiting fit with the end part of the rear shaft in a sleeved mode, a locking hole 26 corresponding to the extension groove is formed in the upper supporting arm, and a locking bolt 27 is inserted into the locking hole and the extension groove. In this patent, extension device mainly includes the extension groove that sets up on lower brace and sets up the locking hole on last brace to and the locking bolt of cartridge in locking hole and extension groove. The extension groove is a long-strip-shaped groove extending up and down along the lower support arm, the upper portion of the extension groove is sleeved and assembled with the rear shaft end portion extending out of the upper transverse groove, and therefore the upper portion of the lower support arm can be positioned through a rear shaft inserted into the upper portion of the extension groove. The extension groove middle part corresponds the setting with the locking hole, so through at locking hole and extension groove interpolation dress locking bolt and screw up, can realize going up the effect of brace middle part and lower brace location. Therefore, the lower transverse groove and the upper transverse groove can be fixed through the two positioning functions. When the cable thickness is different, the required extension and buffering length is also different, and the distance between the lower wheel and the disc blade needs to be adjusted. When the adjustment is needed, only the locking bolt needs to be loosened, then the lower transverse groove is moved up and down along the extension groove, the distance between the lower transverse groove and the upper transverse groove is adjusted to a set distance, then the locking bolt is screwed up, the lower transverse groove and the upper transverse groove can be fixed again, and the operation is very simple.

Claims

1. A cable outer sheath stripping tool is characterized in that: the cable cutting device comprises an upper transverse groove (1) with a downward notch, wherein a front wheel (3) is rotatably arranged in the upper transverse groove (1) through a front shaft (2), a rear wheel (5) is rotatably arranged in the upper transverse groove (1) through a rear shaft (4), annular grooves (6) in limit fit with cables are formed in the peripheries of the front wheel (3) and the rear wheel (5), a rotating shaft (7) which is parallel to the front shaft (2) and the rear shaft (4) is further arranged in the upper transverse groove (1) between the front wheel (3) and the rear wheel (5) through a lifting device, a disc blade (8) corresponding to the annular grooves is coaxially arranged on the rotating shaft (7), limiting rings (28) are fixedly arranged on two sides of the disc blade (8), two ends of the cable are positioned in the annular grooves in the upper parts of the front wheel and the rear wheel in a position fit relation with the cable, and the middle part of the cable wraps the lower half circumference of the whole disc blade from the lower part; the lifting device comprises a sliding rail (9) vertically arranged on the inner groove wall of an upper transverse groove (1) and a sliding frame (10) capable of sliding up and down only along the sliding rail (9), the rotating shaft (7) is installed on the sliding frame (10), a through hole (11) is formed in the bottom of the upper transverse groove (1), a stud (12) vertically penetrating out of the through hole (11) upwards is fixedly arranged at the upper end of the sliding frame (10), an upper support (13) is fixedly arranged on the upper transverse groove (1), a rotating sleeve (14) is rotatably installed on the upper support (13) and can only rotate relative to the upper support, and an internal thread (15) in threaded fit with the stud (12) is arranged on the inner wall of the rotating sleeve (14); a positioning plate (16) is fixedly arranged on the upper transverse groove (1), an inner screw hole (17) is arranged on the positioning plate (16), a screw (18) is screwed in the inner screw hole (17), and positioning holes (19) which are inserted and matched with the screw (18) are uniformly distributed on the periphery of the rotating sleeve (14).

2. The cable jacket stripping tool of claim 1, wherein: still include lower transverse groove (20) that the notch upwards set up, set firmly lower brace (21) that upwards extends on lower transverse groove (20) cell wall, set firmly last brace (22) of downwardly extending on last transverse groove (1) cell wall, go up brace (22) and brace (21) down and fix together through extending the device, rotate through lower axle (23) in brace (21) down and install lower round (24) that are located disc blade (8) below, also be equipped with on lower round (24) periphery with cable spacing complex annular (6).

3. The cable jacket stripping tool of claim 2, wherein: the extension device comprises an extension groove (25) which is arranged on a lower supporting arm (21) and extends up and down, the upper section of the extension groove (25) is in sleeved limit fit with the end part of the rear shaft (4), a locking hole (26) corresponding to the extension groove (25) is arranged on an upper supporting arm (22), and a locking bolt (27) is inserted into the locking hole (26) and the extension groove (25).