Semi-automatic high-voltage cable stripper

Abstract

The invention provides a semi-automatic high-voltage cable stripper, relates to the technical field of wire stripping tools of high-voltage cables, and solves the technical problems of low wire stripping speed and low efficiency when a conventional wire stripping tool is used for high-voltage cable construction in the prior art. The device comprises a frame body, a pressing mechanism, a rolling mechanism and a peeling mechanism, the pressing mechanism is rotatably connected with the frame body and is limited by a self-locking device, the rolling mechanism is suspended in the frame body, the pressing mechanism is connected with the rolling mechanism, and the peeling mechanism is connected with the rolling mechanism. The pressing mechanism can push the rolling mechanism to be tightly pressed on a cable, the peeling mechanism is located at the end of the interior of the frame body and connected with the end of the interior of the frame body, the peeling mechanism can change the peeling diameter, the rolling mechanism can be connected with an electric drill, and the electric drill can drive the rolling mechanism to roll forwards on the cable.

Description

Technical Field

[0001] The present invention relates to the technical field of wire stripping tools for high-voltage cables, and more particularly to a semi-automatic high-voltage cable wire stripper. Background Art

[0002] Tools such as wire stripping pliers and wire stripping knives are commonly used wire stripping tools during cable and wire connection operations or electrical construction. However, for high-voltage cables with relatively thick diameters and thick insulating rubber sheaths, there are no suitable wire stripping tools during connection construction. Currently, tools such as scissors and electrician's knives are mostly used for stripping and shearing the insulating rubber sheaths. The problems brought about by this are slow wire stripping speed and low connection efficiency. Especially during emergency repair construction of key lines on the line, such as the emergency repair construction of a blowout accident on the subway high-voltage power transmission line, the low wire stripping efficiency often greatly affects the overall emergency repair progress. At the same time, when using these conventional wire stripping tools, another very serious problem will be encountered, that is, when workers operate, especially when accelerating the operation to catch up with the construction progress, it is very difficult to avoid slightly scratching the insulating rubber sheath of the lower-layer cable that does not need to be stripped during the operation. These scratches will become potential weaknesses in insulation protection, leading to the occurrence of high-voltage breakdown accidents.

[0003] The design of this patent is to solve the problems of slow wire stripping speed, low efficiency, and unstable wire stripping quality existing in the construction of high-voltage cables using conventional wire stripping tools, especially the problem of easily leaving scratches on the lower-layer insulating rubber sheath, which may lead to potential insulation failure and major accidents such as breakdown and explosion. Summary of the Invention

[0004] The purpose of the present invention is to provide a semi-automatic high-voltage cable wire stripper to solve the technical problems of slow wire stripping speed and low efficiency existing in the construction of high-voltage cables using conventional wire stripping tools. The preferred technical solutions provided by the present invention can produce many technical effects, which will be elaborated below.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A semi-automatic high-voltage cable wire stripper provided by the present invention includes a frame body, a pressing mechanism, a rolling mechanism, and a wire stripping mechanism. Among them, the pressing mechanism is rotatably connected to the frame body and is restricted by a self-locking device. The rolling mechanism is suspended inside the frame body. The pressing mechanism is connected to the rolling mechanism. The pressing mechanism can push the rolling mechanism to press tightly on the cable. The wire stripping mechanism is located at the end inside the frame body and is connected to it. The wire stripping mechanism can change the wire stripping diameter. The rolling mechanism can be connected to an electric drill, and the electric drill can drive the rolling mechanism to roll forward on the cable.

[0007] Optionally, the frame body is a rectangular hollow column, and the four sides of the frame body are provided with hollow-outs. The front end of the frame body is open, and an installation ring is provided at the rear end of the frame body. The peeling mechanism is threadedly connected to the installation ring.

[0008] Optionally, a pressing arm large shaft is provided on the side wall of the front end of the frame body. Small pressing rod chutes, large locking rod chutes and self-locking reset parts are provided on both the upper plate and the lower plate of the frame body. The small pressing rod chute is located in front of the large locking rod chute. The number of the pressing arm large shafts, the small pressing rod chutes and the large locking rod chutes is two. The two large locking rod chutes are respectively located on both sides of the self-locking reset part.

[0009] Optionally, the pressing mechanism includes a large pressing arm, a toothed large locking rod and a small pressing rod. The front end of the large pressing arm is rotatably connected to the pressing arm large shaft. One end of the small pressing rod is connected to the side wall of the middle part of the large pressing arm near the front end. The other end of the small pressing rod passes through the small pressing rod chute and is connected to the rolling mechanism. One end of the toothed large locking rod is connected to the side wall of the middle part of the large pressing arm near the rear end. The other end of the toothed large locking rod passes through the large locking rod chute. The self-locking device is installed beside the large locking rod chute. The self-locking device can automatically lock the pressed toothed large locking rod and prevent it from rebounding. The self-locking reset part can immediately release the position locking of the toothed large locking rod after the reset button thereon is pressed. The number of the toothed large locking rods and the small pressing rods is two.

[0010] Optionally, a large locking rod slot hole and a small pressing rod slot hole are provided on the large pressing arm. The large locking rod slot hole and the small pressing rod slot hole are both inclined. One end of the small pressing rod is slidably connected to the small pressing rod slot hole. One end of the toothed large locking rod is slidably connected to the large locking rod slot hole.

[0011] Optionally, the self-locking device includes a self-locking chute, an unlocking rotating disc, a self-locking ejector rod and a self-locking rotating tooth. The self-locking reset part includes a reset button and a button seat with a bottom. Openings are provided on both sides of the button seat with a bottom. The reset button is installed on the button seat with a bottom, and the reset antennae on both sides of the reset button extend out of the corresponding openings. The number of the self-locking chutes, the unlocking rotating discs, the self-locking ejector rods and the self-locking rotating teeth is two. The two self-locking chutes are respectively located on both sides of the button seat with a bottom. The unlocking rotating disc is rotatably connected to the self-locking chute, and a torsion spring is installed on the central axis of the unlocking rotating disc. A notch is provided on the unlocking rotating disc. One end of the self-locking ejector rod is connected to the unlocking rotating disc, and the other end of the self-locking ejector rod passes through the self-locking chute and is rotatably connected to the self-locking rotating tooth. A torsion spring piece is installed on the central axis of the self-locking rotating tooth. The self-locking rotating tooth can abut against the one-way tooth on the toothed large locking rod.

[0012] Optionally, the number of the rolling mechanism and the pressing mechanism is two. A speed reducer is connected to one of the rolling mechanisms, and the speed reducer can be connected to the electric drill;

[0013] The rolling mechanism includes a cable pressing wheel frame and a thin-waisted pressing wheel. The thin-waisted pressing wheel is located inside the cable pressing wheel frame and is rotatably connected to the cable pressing wheel frame. The cable pressing wheel frame is connected to the pressing mechanism;

[0014] The shape of the thin-waisted pressing wheel is thin in the middle and thick at both ends, and the diameter gradually decreases from both ends to the middle.

[0015] Optionally, the peeling mechanism includes a double-ring variable-diameter tool holder, a reverse-edge tool group, and a variable-diameter nut. The double-ring variable-diameter tool holder is threadedly connected to the mounting ring. The variable-diameter nut is sleeved on the double-ring variable-diameter tool holder and is threadedly connected to the double-ring variable-diameter tool holder. The number of the reverse-edge tool groups is multiple, and all the reverse-edge tool groups surround the inside of the double-ring variable-diameter tool holder and are distributed along the axial direction. The reverse-edge tool group is connected to the double-ring variable-diameter tool holder through a multi-link structure. By rotating the variable-diameter nut, the peeling diameter of the reverse-edge tool group can be changed.

[0016] Optionally, the reverse-edge tool group includes a double-ridge tool holder, a pressing knife strip, a single-edge blade, and a semi-cone pressing strip. The pressing knife strip, the single-edge blade, the connecting plate on the double-ridge tool holder, and the semi-cone pressing strip are connected by screws. The fitting plate of the double-ridge tool holder is located below the semi-cone pressing strip. The reverse cutting edge of the single-edge blade and the tip of the double-ridge tool holder both face the front end of the tool body.

[0017] Optionally, the double-ring variable-diameter tool holder includes a large ring holder, an inter-ring connecting leg, and a small ring holder. The large ring holder and the small ring holder are connected by the inter-ring connecting leg. The number of the inter-ring connecting legs is multiple, and all the inter-ring connecting legs are distributed along the circumferential direction of the small ring holder. A sliding groove is provided on the small ring holder. One end of the multi-link structure is slidably connected to the sliding groove and is clamped with the variable-diameter nut. The other end of the multi-link structure is rotatably connected to the inner wall of the large ring holder. The multi-link structure is rotatably connected to the reverse-edge tool group. The number of the sliding groove, the multi-link structure, and the reverse-edge tool group is the same and they correspond one by one;

[0018] The multi-link structure includes a push rod structure, a moving push rod, and a push rod slider. The push rod slider is located in the chute and is slidably connected to the chute. A limiting groove is provided on the push rod slider, and a part of the variable-diameter nut is located in the limiting groove. The number of moving push rods is two, and both ends of the moving push rod are rotatably connected to the inner wall of the large ring frame and the pressing knife bar respectively. The large ring frame, the pressing knife bar, and the two moving push rods form a deformable parallelogram structure. One end of the push rod structure is connected to the push rod slider, and the other end of the push rod structure is rotatably connected to the middle of one of the moving push rods.

[0019] A semi-automatic high-voltage cable stripper provided by the present invention adopts a frame-type integrated clamping mechanism. By pressing the pressing mechanism, the rolling mechanism will be pushed to move, thereby pressing the cable. At the same time, the self-locking device will limit the reverse rotation of the pressing mechanism. Then, according to the diameter of the lower cable sheath of the cable layer to be stripped, the stripping diameter of the stripping mechanism is adjusted. Finally, the electric drill is connected to the rolling mechanism, and the rolling mechanism will roll forward along the cable under the drive of the electric drill, thereby driving the stripping mechanism to move forward. And the stripping mechanism will strip the outer cable sheath during the forward movement, thereby improving the stripping speed and work efficiency, and solving the technical problems of slow stripping speed and low efficiency existing in the prior art when using conventional stripping tools for high-voltage cable construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 is a schematic structural diagram of a semi-automatic high-voltage cable stripper provided by an embodiment of the present invention;

[0022] Figure 2 is a sectional view of a semi-automatic high-voltage cable stripper provided by an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of a semi-automatic high-voltage cable stripper provided by an embodiment of the present invention with the frame removed;

[0024] Figure 4 is a schematic structural diagram of the connection between the double-ring variable-diameter knife holder and the reverse-edge knife group of a semi-automatic high-voltage cable stripper provided by an embodiment of the present invention;

[0025] Figure 5It is a schematic structural diagram of the frame of a semi-automatic high-voltage cable stripper provided by an embodiment of the present invention;

[0026] Figure 6 It is a schematic structural diagram of another side of the frame of a semi-automatic high-voltage cable stripper provided by an embodiment of the present invention;

[0027] Figure 7 It is a schematic structural diagram of the connection between the reset button and the toothed large lock rod of a semi-automatic high-voltage cable stripper provided by an embodiment of the present invention;

[0028] Figure 8 It is a schematic structural diagram of another side of the connection between the reset button and the toothed large lock rod of a semi-automatic high-voltage cable stripper provided by an embodiment of the present invention;

[0029] Figure 9 It is a schematic structural diagram of another side of the connection between the reset button and the toothed large lock rod of a semi-automatic high-voltage cable stripper provided by an embodiment of the present invention;

[0030] Figure 10 It is a schematic structural diagram of the separation between the reset button and the toothed large lock rod of a semi-automatic high-voltage cable stripper provided by an embodiment of the present invention;

[0031] Figure 11 It is a schematic structural diagram of another side of the separation between the reset button and the toothed large lock rod of a semi-automatic high-voltage cable stripper provided by an embodiment of the present invention;

[0032] Figure 12 It is a schematic structural diagram of the large pressure arm of a semi-automatic high-voltage cable stripper provided by an embodiment of the present invention;

[0033] Figure 13 It is a schematic structural diagram of the toothed large lock rod of a semi-automatic high-voltage cable stripper provided by an embodiment of the present invention;

[0034] Figure 14 It is a schematic structural diagram of the reset button of a semi-automatic high-voltage cable stripper provided by an embodiment of the present invention.

[0035] In the figure: 0, cable; 1, frame; 2, large pressure arm; 3, double-ring variable-diameter tool rest; 4, reverse-edge tool group; 5, variable-diameter nut; 6, toothed large locking rod; 7, small pressure rod; 8, reset button; 9, cable pressing wheel frame; 10, thin-waisted pressing wheel; 11, reducer; 12, unlocking rotating disc; 13, self-locking ejector rod; 14, self-locking rotating tooth; 1-1, large axis of the pressure arm; 1-2, chute for the small pressure rod; 1-3, button seat with bottom; 1-4, chute for the large locking rod; 1-5, self-locking chute frame; 1-6, mounting ring; 2-2, slot hole for the large locking rod; 2-3, slot hole for the small pressure rod; 2-4, large axis hole of the main arm; 3-1, large ring frame; 3-2, small ring frame; 3-3, connecting foot between rings; 3-4, push rod slider; 3-5, moving push rod; 3-6, push rod structure; 4-1, double-ridge tool rest; 4-2, tool pressing strip; 4-3, single-edge blade; 4-4, semi-conical pressing strip; 6-1, arm of the locking rod; 6-2, one-way tooth; 6-3, top shaft of the locking rod; 6-4, tail shaft of the locking rod; 8-1, reset contact foot; 8-2, spring socket. Detailed implementation mode

[0036] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without making creative efforts fall within the scope protected by the present invention.

[0037] In the description of the present invention, it should be noted that unless otherwise stated, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0038] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0039] The present invention provides a semi-automatic high-voltage cable stripper, which includes a frame body 1, a pressing mechanism, a rolling mechanism and a stripping mechanism. Among them, the pressing mechanism is rotatably connected to the frame body 1 and is restricted by a self-locking device. The rolling mechanism is suspended inside the frame body 1. The pressing mechanism is connected to the rolling mechanism. The pressing mechanism can push the rolling mechanism to press tightly on the cable 0. The stripping mechanism is located at the end inside the frame body 1 and is connected thereto. The stripping mechanism can change the stripping diameter. The rolling mechanism can be connected to a drill, and the drill can drive the rolling mechanism to roll forward on the cable 0. The semi-automatic high-voltage cable stripper provided by the present invention adopts a frame-type integrated clamping mechanism. By pressing the pressing mechanism, the rolling mechanism will be pushed to move, thereby pressing the cable 0 tightly. At the same time, the self-locking device will restrict the pressing mechanism from rotating in the reverse direction. Then, according to the diameter of the lower cable sheath of the layer to be stripped, the stripping diameter of the stripping mechanism is adjusted. Finally, the drill is connected to the rolling mechanism. Driven by the drill, the rolling mechanism will roll forward along the cable, thereby driving the stripping mechanism to move forward. And the stripping mechanism will strip the outer cable sheath during the forward movement, thereby improving the stripping speed and work efficiency, and solving the technical problems of slow stripping speed and low efficiency existing in the prior art when using conventional stripping tools for high-voltage cable construction.

[0040] As an optional implementation manner, the frame body 1 is a rectangular hollow cylinder, and the four sides of the frame body 1 are provided with openings to facilitate observing the stripping operation process. The front end of the frame body 1 is provided with an open end, which is the forward direction of the semi-automatic high-voltage cable stripper. An installation ring 1-6 is provided at the rear end of the frame body 1. The stripping mechanism is threadedly connected to the installation ring 1-6, and threads are provided on the inner ring of the installation ring 1-6.

[0041] As an optional implementation manner, a pressing arm large shaft 1-1 is provided on the side wall of the front end of the frame body 1. Small pressing rod chutes 1-2, large lock rod chutes 1-4 and self-locking reset parts are provided on both the upper plate and the lower plate of the frame body 1. The small pressing rod chutes 1-2 are located in front of the large lock rod chutes 1-4. The number of the pressing arm large shaft 1-1, the small pressing rod chutes 1-2 and the large lock rod chutes 1-4 is two, and the two large lock rod chutes 1-4 are respectively located on both sides of the self-locking reset part.

[0042] As an optional implementation manner, the pressing mechanism includes a large pressing arm 2, a toothed large locking rod 6, and a small pressing rod 7. The front end of the large pressing arm 2 is rotatably connected to the large pressing arm shaft 1-1. When the large pressing arm 2 is pressed, the large pressing arm 2 rotates around the large pressing arm shaft 1-1. A main arm large shaft hole 2-4 is provided at the front end of the large pressing arm 2, and the end of the large pressing arm shaft 1-1 is rotatably connected to the main arm large shaft hole 2-4. One end of the small pressing rod 7 is connected to the side wall of the middle part of the large pressing arm 2 near the front end. The other end of the small pressing rod 7 passes through the small pressing rod chute 1-2 and is connected to the rolling mechanism. The small pressing rod chute 1-2 is used to guide the small pressing rod 7. One end of the toothed large locking rod 6 is connected to the side wall of the middle part of the large pressing arm 2 near the rear end. The other end of the toothed large locking rod 6 passes through the large locking rod chute 1-4. The large locking rod chute 1-4 is used to guide the toothed large locking rod 6. The self-locking device is installed beside the large locking rod chute 1-4. The self-locking device can automatically lock the pressed toothed large locking rod 6 and prevent it from rebounding. The self-locking reset part can immediately release the position locking of the toothed large locking rod 6 after the reset button 8 thereon is pressed. The numbers of the toothed large locking rod 6 and the small pressing rod 7 are both two.

[0043] As an optional implementation manner, a large locking rod slot hole 2-2 and a small pressing rod slot hole 2-3 are provided on the large pressing arm 2. Both the large locking rod slot hole 2-2 and the small pressing rod slot hole 2-3 are inclined. One end of the small pressing rod 7 is slidably connected to the small pressing rod slot hole 2-3. One end of the toothed large locking rod 6 is slidably connected to the large locking rod slot hole 2-2. When the large pressing arm 2 rotates, the end of the small pressing rod 7 slides along the length direction of the small pressing rod slot hole 2-3, and the end of the toothed large locking rod 6 slides along the length direction of the large locking rod slot hole 2-2. The toothed large locking rod 6 includes a locking rod arm 6-1, a one-way tooth 6-2, a locking rod top shaft 6-3, and a locking rod tail shaft 6-4. The one-way tooth 6-2 is fixed on one side wall of the locking rod arm 6-1. The locking rod top shaft 6-3 is fixed at the upper end of the toothed large locking rod 6. The locking rod tail shaft 6-4 is fixed at the lower end of the toothed large locking rod 6. The locking rod top shaft 6-3 is slidably connected to the large locking rod slot hole 2-2.

[0044] As an optional implementation manner, the self-locking device includes a self-locking chute 1-5, an unlocking rotating disc 12, a self-locking ejector rod 13, and a self-locking rotating tooth 14. The self-locking reset portion includes a reset button 8 and a button seat 1-3 with a bottom. Openings are provided on both sides of the button seat 1-3 with a bottom. The reset button 8 is installed on the button seat 1-3 with a bottom, and the reset tentacles 8-1 on both sides of the reset button 8 extend out of the corresponding openings. A spring socket 8-2 is also provided on the reset button 8. The spring is located between the spring socket 8-2 and the bottom end of the button seat 1-3 with a bottom. The number of the self-locking chute 1-5, the unlocking rotating disc 12, the self-locking ejector rod 13, and the self-locking rotating tooth 14 is two. The two self-locking chutes 1-5 are respectively located on both sides of the button seat 1-3 with a bottom. The unlocking rotating disc 12 is rotatably connected to the self-locking chute 1-5, and a torsion spring is installed on the central axis of the unlocking rotating disc 12. A notch is provided on the unlocking rotating disc 12, and the notch is used to abut against the reset tentacle 8-1. One end of the self-locking ejector rod 13 is connected to the unlocking rotating disc 12, and the other end of the self-locking ejector rod 13 passes through the self-locking chute 1-5 and is rotatably connected to the self-locking rotating tooth 14. A torsion spring piece is installed on the central axis of the self-locking rotating tooth 14, and the self-locking rotating tooth 14 can abut against the one-way tooth 6-2 on the toothed large lock rod 6. When the reset button 8 is manually pressed, the reset tentacle 8-1 will pass through the notch of the unlocking rotating disc 12, causing the unlocking rotating disc 12 to rotate. At this time, the torsion spring will generate elastic force, and then it will drive the self-locking ejector rod 13 and the self-locking rotating tooth 14 to move away from the toothed large lock rod 6, so that the self-locking rotating tooth 14 is disengaged from the one-way tooth 6-2. At this time, the toothed large lock rod 6 can move outwards. When the reset button 8 is not pressed, under the elastic force of the spring and the torsion spring, the unlocking rotating disc 12, the self-locking ejector rod 13, and the self-locking rotating tooth 14 will move in the opposite direction, so that the self-locking rotating tooth 14 will abut against the one-way tooth 6-2, thereby restricting the outward movement of the toothed large lock rod 6. In the locked state of the self-locking device, the self-locking device only restricts the outward movement of the toothed large lock rod 6. When the large pressing arm 2 is pressed, the toothed large lock rod 6 will move inwards. The inclined tooth edge of the one-way tooth 6-2 contacts the inclined plane of the self-locking rotating tooth 14, and the self-locking rotating tooth 14 will rotate inwards relative to the self-locking ejector rod 13, so that it will pass through the teeth on the one-way tooth 6-2. Under the action of the torsion spring piece, the self-locking rotating tooth 14 will rotate in the opposite direction and return to the original state. Until the downward pressing stops, the self-locking rotating tooth 14 will automatically lock with the one-way tooth 6-2, that is, the flat tooth edge of the one-way tooth 6-2 contacts the lower plane of the self-locking rotating tooth 14 and abuts tightly against each other

[0045] As an optional implementation manner, the number of the rolling mechanism and the pressing mechanism is two, and the two pressing mechanisms are respectively located on the upper and lower sides of the frame body 1. The cable 0 is located between the two rolling mechanisms. A speed reducer 11 is connected to one rolling mechanism, and the speed reducer 11 can be connected to an electric drill;

[0046] The rolling mechanism includes a cable pressing wheel frame 9 and a thin waist pressing wheel 10, the thin waist pressing wheel 10 is located in the cable pressing wheel frame 9 and the thin waist pressing wheel 10 is rotatably connected to the cable pressing wheel frame 9, the cable pressing wheel frame 9 is connected to the pressing mechanism, and the cable pressing wheel frame 9 is connected to the small pressing rod 7. When pressing the large pressing arm 2, the small pressing rod 7 will push the cable pressing wheel frame 9 to move in the direction close to the cable 0, so that the thin waist pressing wheel 10 contacts the cable 0, so that the upper and lower thin waist pressing wheels 10 will press the cable 0 tightly; the cable pressing wheel frame 9 is a U-shaped sheet metal part, which is pressed down from the middle front part of the large pressing arm 2 by a pair of small pressing rods 7, and the toothed large locking rod 6 is located at the rear part of the large pressing arm 2. This arrangement allows the operator to apply a small force to the large pressing arm 2 to press the thin waist pressing wheel 10 tightly onto the cable 0. At the same time, the tip of the self-locking rotating tooth 14 only needs a small force to resist the one-way tooth 6-2 of the toothed large locking rod 6, and keep the large pressing arm 2 pressed tightly without rebounding.

[0047] The shape of the thin-waisted pressing wheel 10 is thin in the middle and thick at both ends, and the diameter gradually decreases from the two ends to the middle. The shape of the thin-waisted pressing wheel 10 is thin in the middle and thick at both ends, and it is an inwardly concave one-piece rubber wheel with a certain curvature. The center of the wheel is a steel shaft. Since the outer wheel is softer, it has a larger contact area when pressed on the cable 0, and can firmly press the cable 0 without damaging the cable 0.

[0048] As an optional implementation, the stripping mechanism includes a double-ring reducing tool holder 3, a reverse blade knife group 4 and a reducing nut 5. The double-ring reducing tool holder 3 is threadedly connected to the mounting ring 1-6. The reducing nut 5 is sleeved on the double-ring reducing tool holder 3 and the reducing nut 5 is threadedly connected to the double-ring reducing tool holder 3. There are multiple reverse blade knife groups 4 and all reverse blade knife groups 4 are surrounded by the double-ring reducing tool holder 3 and distributed along the axial direction. The reverse blade knife group 4 is connected to the double-ring reducing tool holder 3 through a multi-link structure. The stripping diameter of the reverse blade knife group 4 can be changed by rotating the reducing nut 5.

[0049] As an optional embodiment, the reverse blade set 4 includes a double-ridged blade holder 4-1, a knife pressure strip 4-2, a single-edge blade 4-3 and a semi-conical pressure strip 4-4. The knife pressure strip 4-2, the single-edge blade 4-3, the connecting plate on the double-ridged blade holder 4-1 and the semi-conical pressure strip 4-4 are connected by screws. The bonding plate of the double-ridged blade holder 4-1 is located below the semi-conical pressure strip 4-4. The reverse edge of the single-edge blade 4-3 and the tip of the double-ridged blade holder 4-1 are both facing the front end of the frame body 1. The outer cone design of the semi-conical pressure strip 4-4 and the double-sided cone design of the knife pressure strip 4-2 are both to promote the continuous expansion of the cable skin together with the double-ridged blade holder 4-1 when the reverse blade set 4 is pushed forward, and the broken cable skin is separated to both sides under the continuous cutting of the reverse edge of the single-edge blade 4-3.

[0050] As an optionally implemented embodiment, the double-ring variable-diameter tool rest 3 includes a large ring frame 3-1, an inter-ring connecting leg 3-3, and a small ring frame 3-2. The large ring frame 3-1 and the small ring frame 3-2 are connected by the inter-ring connecting leg 3-3. The number of the inter-ring connecting legs 3-3 is multiple and all the inter-ring connecting legs 3-3 are distributed along the circumferential direction of the small ring frame 3-2. A chute is provided on the small ring frame 3-2. One end of the multi-link structure is slidably connected to the chute and is clamped with the variable-diameter nut 5. The other end of the multi-link structure is rotatably connected to the inner wall of the large ring frame 3-1. The multi-link structure is rotatably connected to the counter-edge tool group 4. The numbers of the chute, the multi-link structure, and the counter-edge tool group 4 are the same and correspond to each other one by one;

[0051] The multi-link structure includes a push rod structure 3-6, a moving push rod 3-5, and a push rod slider 3-4. The push rod slider 3-4 is located in the chute and the push rod slider 3-4 is slidably connected to the chute. A limiting groove is provided on the push rod slider 3-4. A part of the variable-diameter nut 5 is located in the limiting groove. The number of the moving push rods 3-5 is two. The two ends of the moving push rod 3-5 are respectively rotatably connected to the inner wall of the large ring frame 3-1 and the tool pressing strip 4-2. The large ring frame 3-1, the tool pressing strip 4-2, and the two moving push rods 3-5 form a deformable parallelogram structure. One end of the push rod structure 3-6 is connected to the push rod slider 3-4. The other end of the push rod structure 3-6 is rotatably connected to the middle part of one moving push rod 3-5. By rotating the variable-diameter nut 5, the push rod slider 3-4 can be made to slide in the chute, thereby driving the push rod structure 3-6 to move, making the moving push rod 3-5 swing, and further making the counter-edge tool group 4 swing, so that the diameter of the circle formed by all the counter-edge tool groups 4 can be changed.

[0052] Working process of a semi-automatic high-voltage cable stripper of the present invention: First, according to the diameter of the lower-layer cable of the cable layer to be stripped, rotate the variable-diameter nut 5, which drives the push-rod slider 3-4, the moving push-rod 3-5 and the push-rod structure 3-6 to perform link linkage. Eventually, the 3 groups of reverse-edge cutter groups 4 in the double-ring variable-diameter cutter holder 3 are scaled to a circular diameter equal to the diameter of the cable to be stripped. Insert the cable 0 from the other side of the frame body 1 where the double-ring variable-diameter cutter holder 3 is installed, and insert each reverse-edge cutter group 4 into the lower layer of the cable sheath to be stripped. At the same time, press down the large pressure arm 2 inward. The small pressure rod 7 connected to the middle shaft hole of the large pressure arm 2 will press the 4 hourglass-shaped pressure wheels 10 under the cable pressure wheel holder 9 against the outer diameter of the cable 0 from both the upper and lower directions. At the same time, the toothed large locking rod 6 connected to the outermost shaft hole of the large pressure arm 2 also slides inward along the large locking rod chute 2-2 on the frame body 1. During the sliding process, the self-locking ejector rod 13 under the spring thrust abuts against the self-locking rotating tooth 14 outward, so that the tip of the self-locking rotating tooth 14 always abuts against the one-way tooth surface of the toothed large locking rod 6. The snap ring installed inside the self-locking rotating tooth 14 will cause the self-locking rotating tooth 14 to quickly return to straight after slightly rotating over the one-way tooth. When the toothed large locking rod 6 stops sliding in, the tip of the self-locking rotating tooth 14 will abut against the one-way tooth 6-2, making the toothed large locking rod 6 unable to retract, completing the automatic clamping and locking of the cable 0. In this way, the semi-automatic high-voltage cable stripper is fastened to the cable to be stripped. After that, insert the square drill rod installed on the hand-held electric drill into the outward-facing square hole of the reducer 11, and start the electric drill to make the hourglass-shaped pressure wheel 10 connected thereto become the main driving wheel, driving the entire mechanism to crawl forward along the cable 0. The cable sheath is continuously cut by the 3 reverse-edge cutter groups during the forward crawling of the stripper. At the same time, the protective fins of the double-ridge cutter holder 4-1 protect the lower-layer cable sheath from being scratched or damaged. The cut cable sheath is divided into three strands and continuously discharged from the middle connection gap of the double-ring variable-diameter cutter holder 3 under the continuous cutting of the reverse-edge cutter group 4. After the stripping is completed, press the reset button 8, and its reset contact foot 8-1 rotates and unlocks the rotating disc 12, driving the self-locking ejector rod 13 and the self-locking rotating tooth 14 back to their original positions, causing the toothed large locking rod 6 to pop out by itself. At the same time, the hourglass-shaped pressure wheel 10 pressed down by the large pressure arm 2 is released, and the stripper can be removed from the cable 0.

[0053] The semi-automatic high-voltage cable stripper provided by the present invention is a special semi-automatic high-voltage cable stripper dedicated to high-voltage cable wiring construction, which has the advantages of fast stripping speed, high efficiency, no scratching hazard to the lower-layer insulating rubber sheath, simple operation, and delicate structure. The structure design of the stripper of the present invention adopts a frame-type integral clamping mechanism. After clamping, the self-locking mechanism automatically locks. The cable is locked by the upper and lower rubber wheel group pressing mechanism. The electric drill drives the pressing wheel to realize the drive, and drives 3 groups of variable-diameter reverse-edge cutter groups 4 to quickly strip the cable outer sheath in a way of expanding and cutting at the same time. The unique design of the reverse-edge cutter group protects the lower-layer cable sheath from being scratched. When in use, the annular opening diameter of the multi-cutter group can be quickly adjusted according to the cable diameter. After the reverse-edge cutter group 4 is inserted into the cable rubber sheath, the whole machine clamps the cable through the rubber pressing wheel and automatically locks it. The electric drill drives the pressing wheel to drive the reverse-edge cutter group to cut the rubber sheath efficiently and quickly. During the advancing process, the unique design of the reverse-edge cutter group can avoid scratching the lower-layer insulating rubber sheath, and avoid major accidents such as breakdown and explosion caused by potential insulation failure.

[0054] As mentioned above, the above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the said claims.

Claims

1. A semi-automatic high-voltage cable stripper, characterized in that, It includes a frame body, a pressing mechanism, a rolling mechanism and a peeling mechanism. Among them, the pressing mechanism is rotatably connected to the frame body and is restricted by a self-locking device. The rolling mechanism is suspended in the frame body. The pressing mechanism is connected to the rolling mechanism. The pressing mechanism can push the rolling mechanism to press tightly on the cable. The peeling mechanism is located at the end inside the frame body and is connected thereto. The peeling mechanism can change the peeling diameter. The rolling mechanism can be connected to a drill, and the drill can drive the rolling mechanism to roll forward on the cable.

2. A semi-automatic high-voltage cable stripper according to claim 1, characterized in that, The frame body is a rectangular hollow cylinder, and the four sides of the frame body are provided with openings. The front end of the frame body is open, and the rear end of the frame body is provided with a mounting ring. The peeling mechanism is threadedly connected to the mounting ring.

3. A semi-automatic high-voltage cable stripper according to claim 1, characterized in that, A large pressing arm shaft is provided on the side wall of the front end of the frame body. Small pressing rod chutes, large locking rod chutes and self-locking reset parts are provided on both the upper plate and the lower plate of the frame body. The small pressing rod chute is in front of the large locking rod chute. The number of the large pressing arm shaft, the small pressing rod chute and the large locking rod chute is two each. The two large locking rod chutes are respectively located on both sides of the self-locking reset part.

4. The semi-automatic high-voltage cable stripper according to claim 3, wherein The pressing mechanism includes a large pressing arm, a toothed large locking rod and a small pressing rod. The front end of the large pressing arm is rotatably connected to the large pressing arm shaft. One end of the small pressing rod is connected to the side wall of the middle part of the large pressing arm near the front end. The other end of the small pressing rod passes through the small pressing rod chute and is connected to the rolling mechanism. One end of the toothed large locking rod is connected to the side wall of the middle part of the large pressing arm near the rear end. The other end of the toothed large locking rod passes through the large locking rod chute. The self-locking device is installed beside the large locking rod chute. The self-locking device can automatically lock the pressed toothed large locking rod and prevent it from rebounding. The self-locking reset part can immediately release the position locking of the toothed large locking rod after the reset button thereon is pressed. The number of the toothed large locking rod and the small pressing rod is two each.

5. A semi-automatic high-voltage cable stripper according to claim 4, characterized in that, The large pressing arm is provided with a large locking rod slot hole and a small pressing rod slot hole. Both the large locking rod slot hole and the small pressing rod slot hole are inclined. One end of the small pressing rod is slidably connected to the small pressing rod slot hole. One end of the toothed large locking rod is slidably connected to the large locking rod slot hole.

6. A semi-automatic high-voltage cable stripper according to claim 4, characterized in that, The self-locking device includes a self-locking chute, an unlocking rotating disc, a self-locking ejector rod, and a self-locking rotating tooth. The self-locking reset portion includes a reset button and a button seat with a bottom. Openings are provided on both sides of the button seat with a bottom. The reset button is installed on the button seat with a bottom, and the reset tentacles on both sides of the reset button extend out of the corresponding openings. The number of the self-locking chute, the unlocking rotating disc, the self-locking ejector rod, and the self-locking rotating tooth is two. The two self-locking chutes are respectively located on both sides of the button seat with a bottom. The unlocking rotating disc is rotatably connected to the self-locking chute, and a torsion spring is installed on the central axis of the unlocking rotating disc. A notch is provided on the unlocking rotating disc. One end of the self-locking ejector rod is connected to the unlocking rotating disc, and the other end of the self-locking ejector rod passes through the self-locking chute and is rotatably connected to the self-locking rotating tooth. A torsion spring piece is installed on the central axis of the self-locking rotating tooth, and the self-locking rotating tooth can abut against the one-way tooth on the toothed large lock rod.

7. A semi-automatic high-voltage cable stripper according to claim 1, characterized in that, The number of the rolling mechanism and the pressing mechanism is two. A reducer is connected to one of the rolling mechanisms, and the reducer can be connected to the electric drill; The rolling mechanism includes a cable pressing wheel frame and a thin-waisted pressing wheel. The thin-waisted pressing wheel is located inside the cable pressing wheel frame, and the thin-waisted pressing wheel is rotatably connected to the cable pressing wheel frame. The cable pressing wheel frame is connected to the pressing mechanism; The shape of the thin-waisted pressing wheel is thin in the middle and thick at both ends, and the diameter gradually decreases from both ends to the middle.

8. The semi-automatic high-voltage cable stripper according to claim 2, wherein, The peeling mechanism includes a double-ring variable-diameter knife holder, a reverse-edge knife group, and a variable-diameter nut. The double-ring variable-diameter knife holder is threadedly connected to the mounting ring. The variable-diameter nut is sleeved on the double-ring variable-diameter knife holder, and the variable-diameter nut is threadedly connected to the double-ring variable-diameter knife holder. The number of the reverse-edge knife groups is multiple, and all the reverse-edge knife groups surround the inside of the double-ring variable-diameter knife holder and are distributed along the axial direction. The reverse-edge knife group is connected to the double-ring variable-diameter knife holder through a multi-link structure. By rotating the variable-diameter nut, the peeling diameter of the reverse-edge knife group can be changed.

9. A semi-automatic high-voltage cable stripper according to claim 8, characterized in that, The reverse-edge knife group includes a double-ridge knife holder, a knife pressing strip, a single-edge blade, and a semi-cone pressing strip. The knife pressing strip, the single-edge blade, the connecting plate on the double-ridge knife holder, and the semi-cone pressing strip are connected by screws. The fitting plate of the double-ridge knife holder is located below the semi-cone pressing strip. The reverse cutting edge of the single-edge blade and the tip of the double-ridge knife holder both face the front end of the frame body.

10. A semi-automatic high-voltage cable stripper according to claim 9, characterized in that, The double-ring variable-diameter knife holder includes a large ring frame, an inter-ring connecting leg, and a small ring frame. The large ring frame and the small ring frame are connected by the inter-ring connecting leg. The number of the inter-ring connecting legs is multiple, and all the inter-ring connecting legs are distributed along the circumferential direction of the small ring frame. A chute is provided on the small ring frame. One end of the multi-link structure is slidably connected to the chute and is clamped with the variable-diameter nut. The other end of the multi-link structure is rotatably connected to the inner wall of the large ring frame. The multi-link structure is rotatably connected to the reverse-edge knife group. The number of the chute, the multi-link structure, and the reverse-edge knife group is the same and they correspond one by one; The multi-link structure includes a push rod structure, a moving push rod, and a push rod slider. The push rod slider is located in the chute and is slidably connected to the chute. A limiting groove is provided on the push rod slider, and a part of the variable-diameter nut is located in the limiting groove. The number of the moving push rods is two. The two ends of the moving push rod are respectively rotatably connected to the inner wall of the large ring frame and the knife pressing bar. The large ring frame, the knife pressing bar, and the two moving push rods form a deformable parallelogram structure. One end of the push rod structure is connected to the push rod slider, and the other end of the push rod structure is rotatably connected to the middle of one of the moving push rods.

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