Wire stripping tool for low-voltage service conductor

Abstract

The invention provides a low-voltage service wire stripping tool, which belongs to the technical field of power distribution operation tools and comprises an upper plier head and a lower plier head, first grooves are formed in the front ends of the inner sides of the upper plier head and the lower plier head, skin breaking mechanisms are detachably mounted in the two first grooves, second grooves are formed in the middle parts of the inner sides of the upper plier head and the lower plier head, and the second grooves are detachably mounted in the skin breaking mechanisms. Two second grooves are formed in the middle of the upper plier head and the lower plier head, a thread breaking mechanism is detachably installed in the two second grooves, the rear portion of the upper plier head and the rear portion of the lower plier head are rotationally connected through a pin, the tail end of the upper plier head and the tail end of the lower plier head are both sleeved with plier handles, and a spring is fixedly connected between the front ends of the two plier handles. The wire cutter is simple in structure and convenient to use, wire skin cutting and rib cutting separation of an insulating layer of an insulated wire can be realized during wire stripping, tools do not need to be replaced, the operation efficiency is improved, and the wire cutter and the rib cutter are connected through screws, can be independently detached and replaced and are convenient to maintain and update.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution operation tools, in particular to a low-voltage household line stripping tool. Background Art

[0003] At present, the diameter of the low-voltage household line that can meet the capacity requirements of residential electrical appliances is 10mm. 2 and 16mm 2 Insulated wire, the wire stripping tool widely used in the market is suitable for wire diameter of 0.2mm 2 -6mm 2 , much smaller than 10mm 2 and 16mm 2 , which cannot meet the needs of capacity expansion and installation work, so the only wire stripping tool left is the traditional electrician's knife, 10mm 2 and 16mm 2 The insulation thickness of the wire diameter is 1 (-0.1~+0.1) mm 2 Wire stripping has become one of the important factors affecting work efficiency. At present, when using an electrician's knife to strip wires, it is necessary to try to ensure that the metal wire core is not damaged while stripping the insulation layer. However, no matter how skilled the electrician is, it is almost impossible to achieve zero-damage stripping when using an electrician's knife to strip wires. Different degrees of damage to the wire core will cause various safety hazards. Minor damage will cause single strand damage. After the line is put into operation, the temperature of the damaged part of the wire will increase, and there is a safety hazard of overheating of the wire. In serious cases, the stripped wire will not meet the requirements of safety regulations and cannot continue to be put into operation. It is necessary to cut off the wire at the severely damaged part and re-strip the wire until it meets the safety regulations. This is time-consuming and labor-intensive. At the same time, because the low-voltage household line is connected to the low-voltage line and the electric energy meter, the contact length with the two is also different, which leads to the stripping of the insulation layer. The length of the connected metal part is estimated by the operator, and there will be problems of stripping too long or too short. If the exposed part is too long, there will be a metal exposed point at the connection between the pole and the household line clamp, and there is a risk of electric shock; if the exposed part is too short, the insulation layer will be pressed during the crimping process, resulting in an unreal connection and poor contact. Therefore, a safe and convenient wire stripping method is provided to achieve the application of 10mm 2 and 16mm 2 Insulated wire, can quickly strip off the outer skin of the insulating wire, reduce the damage to the wire core, and realize visual control of the length of the stripped insulation layer. The low-voltage household line stripping tool is highly practical. Summary of the invention

[0004] The purpose of the present invention is to provide a low-voltage subscriber line stripping tool, aiming to solve the problems pointed out by the above background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: The present invention provides a low-voltage household line stripping tool, comprising an upper pliers head and a lower pliers head, wherein the inner front ends of the upper pliers head and the lower pliers head are each provided with a first groove, and the two first grooves are internally provided with a stripping mechanism detachably mounted therein; the inner middle parts of the upper pliers head and the lower pliers head are each provided with a second groove, and the two second grooves are internally provided with a wire cutting mechanism detachably mounted therein; the rear parts of the upper pliers head and the lower pliers head are rotatably connected by a pin, and the tail ends of the upper pliers head and the lower pliers head are both sleeved with pliers handles, and a spring is fixedly connected between the front ends of the two pliers handles.

[0006] In one embodiment of the present invention, the skin cutting mechanism includes an upper cutting die embedded in the first groove of the upper pliers head, a cutting groove is provided in the middle of the upper cutting die, a skin cutting knife is embedded in the inside of the cutting groove, a lower cutting die is embedded in the first groove of the lower pliers head, and arc-shaped threading grooves are provided on the inner sides of the lower cutting die and the upper cutting die.

[0007] In one embodiment of the present invention, one end of the upper cutting die and the lower cutting die are both fitted with a wire guide plate, the inner side of the wire guide plate is provided with a semicircular conical countersunk hole, and the inner sides of the upper cutting die and the lower cutting die are both laser engraved with scale markings.

[0008] In one embodiment of the present invention, the upper cutting die is fixedly connected to the first screw hole at the front end of the upper pliers head by a screw, and one end of the screw passes through the knife groove and is fixedly connected to the second screw hole opened by the skin cutting knife, the lower cutting die is fixedly connected to the third screw hole opened at the bottom of the lower pliers head by a screw, and the two wire guide plates are fixedly connected to the fourth screw holes opened at one end of the upper cutting die and the lower cutting die by a screw.

[0009] In one embodiment of the present invention, the wire cutting mechanism includes a wire cutting knife embedded in one end of the second groove of the upper pliers head, and the bottom of the wire cutting knife is provided with a pressure pad embedded in the second groove of the lower pliers head, and the top of the pressure pad is arranged flush with the notch of the second groove.

[0010] In one embodiment of the present invention, the wire cutter is fixedly connected to a fifth screw hole provided in the middle of the upper clamp head by a screw, and the pressure pad is fixedly connected to a sixth screw hole provided in the top of the lower clamp head by a screw.

[0011] In one embodiment of the present invention, a third groove is provided at the middle bottom of the lower pliers head, a seventh screw hole is provided at one end inside the third groove, and a rib cutting knife is connected to the seventh screw hole through a screw.

[0012] In one embodiment of the present invention, a first spring top ball is installed at the other end of the third groove, and a top ball groove is provided on the inner side of one end of the rib cutting knife.

[0013] In one embodiment of the present invention, one end of the pliers handle close to the upper pliers head and the lower pliers head is fixedly connected with a retaining ring, and the pliers handle is made of insulating heat-resistant plastic material.

[0014] In one embodiment of the present invention, the screw is one or more of a hexagonal screw, a slotted screw or a cross screw.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1) The low-voltage household wire stripping tool provided by the present invention can realize the 10mm 2 and 16mm 2 The insulated wire can be quickly stripped. The arc-shaped wire grooves on the inner sides of the upper and lower cutting dies can limit and guide the insulated wire to avoid deviation during the stripping process. The skin-breaking knife in the middle of the upper cutting die can accurately cut the insulation layer. With the extrusion and pulling of the upper and lower cutting dies, the cut insulation layer can be stripped, especially for the stripping of double-strand low-voltage household wires. The whole stripping process is simple and efficient. In addition, the upper and lower cutting dies can be disassembled and replaced, and the corresponding type of cutting die can be selected according to the wire diameter specification of the insulated wire, which has strong adaptability. 2) The present invention provides laser engraved scale marks on the inner sides of the upper and lower cutting dies, and at the same time, provides a wire guide plate with a tapered countersunk hole at the ends of the upper and lower cutting dies. During operation, the insulated wire is passed through the tapered countersunk hole and embedded in the arc-shaped wire threading groove of the upper and lower cutting dies. The insulated wire is automatically centered under the guidance of the tapered countersunk hole. Then, the end of the insulated wire is aligned with the scale mark on the cutting die, so that the length of the insulation layer stripping can be accurately controlled, avoiding the problem of stripping too long or too short, reducing the risk of the end of the insulation wire being exposed, and improving the accuracy and safety of the operation; 3) The present invention provides a wire breaking mechanism in the middle of the upper pliers head and the lower pliers head, and provides a rib cutting knife at the bottom of the lower pliers head, so that the wire skin of the insulated wire can be cut and the ribs of the insulating layer can be separated at the same time of wire stripping, without the need to replace tools, thereby improving the working efficiency. The wire cutting knife and the rib cutting knife are both connected by screws and can be disassembled and replaced separately, which is convenient for maintenance and updating. A first spring top bead is provided at the end of the rib cutting knife, which can elastically tighten the rib cutting knife stored in the third groove after the rib cutting is completed to prevent scratches on the user. In addition, the pliers handle of the entire tool is made of insulating heat-resistant plastic material with good insulation performance, which can effectively isolate the current and ensure working safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings: Figure 1 A schematic diagram of the structure of a low-voltage household line stripping tool provided in an embodiment of the present invention; Figure 2One of the structural schematic diagrams of the low-voltage household line stripping tool provided in the embodiment of the present invention; Figure 3 A schematic diagram of the structure of the pliers head of a low-voltage household line stripping tool provided in an embodiment of the present invention; Figure 4 One of the schematic diagrams of the splitting of the pliers head of the low-voltage household wire stripping tool provided in the embodiment of the present invention; Figure 5 A schematic diagram of the structure of a rib cutting knife of a low-voltage household wire stripping tool provided in an embodiment of the present invention; Figure 6 A schematic diagram of the structure of the stripping mechanism of a low-voltage household wire stripping tool provided in an embodiment of the present invention; Figure 7 The wire guide plate structure of the low-voltage household wire stripping tool provided in the embodiment of the present invention is intended; Figure 8 A structural schematic diagram of Example 2 of a low-voltage subscriber line stripping tool provided in accordance with an embodiment of the present invention.

[0017] Icons: 100, upper clamp head; 110, first screw hole; 120, fifth screw hole; 200, lower clamp head; 210, third screw hole; 220, sixth screw hole; 230, third groove; 240, seventh screw hole; 250, rib cutting knife; 260, first spring top ball; 270, top ball groove; 300, first groove; 400, skin cutting mechanism; 410, upper knife die; 420, knife groove; 430, skin cutting knife; 431, second Screw hole; 440, lower cutting die; 450, threading groove; 460, wire guide plate; 470, conical countersunk hole; 480, scale mark; 490, fourth screw hole; 500, second groove; 600, wire cutting mechanism; 610, wire cutting knife; 620, pressure pad; 700, clamp handle; 710, retaining ring; 800, spring; 900, fourth groove; 9010, strip groove; 920, second spring top bead; 930, top bead hole. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0025] Example 1 See also Figure 1-7 The low-voltage household wire stripping tool comprises an upper clamp head 100 and a lower clamp head 200. The inner front ends of the upper clamp head 100 and the lower clamp head 200 are both provided with a first groove 300. The two first grooves 300 are detachably provided with a skin-breaking mechanism 400. A second groove 500 is provided at the inner middle of the upper clamp head 100 and the lower clamp head 200, and a wire breaking mechanism 600 is detachably installed inside the two second grooves 500; The rear parts of the upper clamp head 100 and the lower clamp head 200 are rotatably connected by a pin, and the tail ends of the upper clamp head 100 and the lower clamp head 200 are sleeved with clamp handles 700, and a spring 800 is fixedly connected between the front ends of the two clamp handles 700.

[0026] Specifically, the first groove 300 can be used to install the skin cutting mechanism 400, and the second groove 500 can be used to install the wire breaking mechanism 600, and the skin cutting mechanism 400 and the wire breaking mechanism 600 can be flexibly replaced according to the specifications of different wires. The rear parts of the upper pliers head 100 and the lower pliers head 200 are rotatably connected by a pin, so that the upper and lower pliers heads can rotate relatively to realize the opening and closing of the jaws. The tail ends of the upper pliers head 100 and the lower pliers head 200 are both sleeved with pliers handles 700, and a spring 800 is fixedly connected between the front ends of the two pliers handles 700. The spring 800 can generate elastic force when the upper and lower pliers heads are closed. When the pliers handle 700 is released, the jaws automatically open under the action of the spring 800. Through the specific structural design, the wire stripping pliers integrate multiple functions such as skin cutting and wire cutting, and the operation is simple and efficient. The pliers head and the pliers handle 700 of the wire stripping pliers save 35% of the force by utilizing the lever principle.

[0027] In this embodiment, the skin cutting mechanism 400 includes an upper cutting die 410 embedded in the first groove 300 of the upper pliers head 100, a cutting groove 420 is opened in the middle of the upper cutting die 410, a skin cutting knife 430 is embedded in the inside of the cutting groove 420, a lower cutting die 440 is embedded in the first groove 300 of the lower pliers head 200, and the inner sides of the lower cutting die 440 and the upper cutting die 410 are opened with arc-shaped threading grooves 450.

[0028] Specifically, the skin cutting mechanism 400 includes an upper knife die 410 embedded in the first groove 300 of the upper clamp head 100 and a lower knife die 440 embedded in the first groove 300 of the lower clamp head 200, so that the upper knife die 410 and the lower knife die 440 can be replaced according to the stripping needs of different wires, and the skin cutting knife 430 is embedded in the knife groove 420, so that the skin cutting knife 430 can be replaced with a skin cutting knife 430 with different cutting depths according to the specifications of the wires, and when the clamp heads are closed, the threading groove 450 on the inner side of the upper knife die 410 and the lower knife die 440 can be The insulated wire is limited and guided to prevent deviation during the stripping process. When the insulated wire is inserted between the upper knife die 410 and the lower knife die 440, the upper pliers head 100 is pressed down by the pliers handle 700, and the upper knife die 410 is pressed down accordingly, so that the skin cutting knife 430 cuts into the surface of the insulated wire and forms an incision. At the same time, the upper knife die 410 and the lower knife die 440 squeeze each other to clamp the insulated wire, and then pull the insulated wire, the insulation layer at the incision will be stripped from the wire, thereby efficiently completing the stripping operation, and the entire process can be done without damaging the wire itself.

[0029] In this embodiment, a wire guide plate 460 is fitted on one end of the upper cutting die 410 and the lower cutting die 440, and a semicircular conical countersunk hole 470 is opened on the inner side of the wire guide plate 460. The inner sides of the upper cutting die 410 and the lower cutting die 440 are laser engraved with scale marks 480.

[0030] Specifically, a semicircular conical countersunk hole 470 is opened on the inner side of the wire guide plate 460, and the aperture of the conical countersunk hole 470 gradually decreases from the outside to the inside, which can guide the insulated wire to be inserted between the upper and lower cutting dies and center it, thereby improving the accuracy of the stripping position. The inner sides of the upper cutting die 410 and the lower cutting die 440 are also laser-engraved with scale marks 480, and the scale marks 480 are used to calibrate the length of the insulation layer stripping. After the insulated wire is inserted into the wire guide plate 460, the operator aligns the end of the insulating wire with the scale mark 480, and then performs the stripping operation, thereby accurately controlling the length of the insulation layer stripping, avoiding the problem of insufficient or excessive stripping length, which can not only meet the line connection requirements, but also avoid the safety hazards of exposed insulating wire ends.

[0031] In this embodiment, the upper cutting die 410 is fixedly connected to the first screw hole 110 at the front end of the upper pliers head 100 by means of screws, and one end of the screw passes through the knife groove 420 and is fixedly connected to the second screw hole 431 provided on the skin cutting knife 430. The lower cutting die 440 is fixedly connected to the third screw hole 210 provided on the bottom of the lower pliers head 200 by means of screws, and the two wire guide plates 460 are fixedly connected to the fourth screw hole 490 provided on one end of the upper cutting die 410 and the lower cutting die 440 by means of screws.

[0032] Specifically, the upper cutting die 410 and the lower cutting die 440 are detachably connected to the upper pliers head 100 and the lower pliers head 200 by screws, respectively, for easy replacement. The front end of the upper pliers head 100 is provided with a first screw hole 110, and the upper cutting die 410 is fixedly connected to the upper pliers head 100 by a screw. The screw passes through the knife groove 420 of the upper cutting die 410 and is connected to the second screw hole 431 provided in the skin cutting knife 430, so that the skin cutting knife 430 and the upper cutting die 410 can be installed synchronously; the bottom of the lower pliers head 200 is provided with a first screw hole 110, and the upper cutting die 410 is fixedly connected to the upper pliers head 100 by a screw. A third screw hole 210 is provided in the part, and the lower cutting die 440 is fixedly connected to the lower clamp head 200 by screws. The two wire guide plates 460 have fourth screw holes 490, which are fixedly connected to the upper cutting die 410 and the lower cutting die 440 respectively by screws. The screw connection method can conveniently disassemble the skin cutting mechanism 400 for maintenance or replacement, and by replacing the upper cutting die 410 and the lower cutting die 440 of different specifications, it can meet the needs of stripping insulated wires of different wire diameters, thereby expanding the scope of application of the tool.

[0033] In this embodiment, the wire cutting mechanism 600 includes a wire cutting knife 610 embedded in one end of the second groove 500 of the upper pliers head 100, and the bottom of the wire cutting knife 610 is provided with a pressure pad 620 embedded in the second groove 500 of the lower pliers head 200, and the top of the pressure pad 620 is arranged flush with the notch of the second groove 500.

[0034] Specifically, when it is necessary to cut the insulation skin of the insulated wire, place the insulated wire on the pressure pad 620, and then use the pliers handle 700 to drive the upper pliers head 100 to press down hard, so that the wire cutter 610 is aligned with the insulation skin of the insulated wire to cut or ring cut. Under the support of the pressure pad 620, the insulation skin of the insulated wire can be cut, and the cut end is neat and smooth. The cooperation of the wire cutter 610 and the pressure pad 620 can quickly cut the insulation skin of the insulated wire, avoiding the tediousness of using other tools and improving work efficiency.

[0035] In this embodiment, the wire cutter 610 is fixedly connected to the fifth screw hole 120 opened in the middle of the upper clamp head 100 by screws, and the pressure pad 620 is fixedly connected to the sixth screw hole 220 opened in the top of the lower clamp head 200 by screws.

[0036] Specifically, by connecting the screws with the fifth screw hole 120, the wire cutter 610 and the pressure pad 620 can be easily disassembled for replacement. When the cutting edge of the wire cutter 610 is worn or dents appear on the surface of the pressure pad, they can be replaced individually without replacing the entire upper and lower pliers heads. The maintenance and replacement cost is low, and the wire cutter 610 and the pressure pad 620 can be selected from different materials and hardnesses according to actual cutting requirements to meet the needs of cutting the insulation skin of insulated wires with different wire diameters.

[0037] In this embodiment, a third groove 230 is formed at the bottom of the middle portion of the lower clamp head 200 , a seventh screw hole 240 is formed at one end of the third groove 230 , and a rib cutting knife 250 is connected to the seventh screw hole 240 via a screw.

[0038] Specifically, the rib cutter 250 is connected by means of a screw in conjunction with the seventh screw hole 240. The rib cutter 250 is used to strip off the insulating layer connected in the middle of the double-strand insulated wire to separate the two wires. When it is necessary to strip off the middle insulating layer of the double-strand insulated wire, the insulated wire is placed at the bottom of the lower pliers head 200 so that the middle insulating layer is just located at the blade of the rib cutter 250. Then, the lower pliers head 200 is driven to lift up with force through the pliers handle 700 so that the rib cutter 250 is inserted into the middle insulating layer of the double-strand insulated wire and moved toward the end to strip off the middle insulating layer. The rib cutter 250 is integrated with the skin cutting mechanism 400 and the wire breaking mechanism 600 on the same tool, and the double-strand insulated wire can be separated while skinning and cutting the wire skin, thereby avoiding frequent replacement of tools and greatly improving work efficiency.

[0039] In this embodiment, a first spring top ball 260 is installed at the other end of the third groove 230 , and a top ball groove 270 is formed on the inner side of one end of the rib cutting knife 250 .

[0040] Specifically, after the rib cutting knife 250 completes the rib cutting action, the rib cutting knife 250 is rotated into the third groove 230, and then the top ball groove 270 of the rib cutting knife 250 is engaged with the first spring top ball 260 to prevent the rib cutting knife 250 from accidentally sliding out and to prevent the rib cutting knife 250 from being exposed and scratching the operator.

[0041] In this embodiment, a retaining ring 710 is fixedly connected to one end of the clamp handle 700 close to the upper clamp head 100 and the lower clamp head 200, and the clamp handle 700 is made of insulating heat-resistant plastic material.

[0042] Specifically, the pliers handle 700 is made of insulating and heat-resistant plastic material with good insulation performance. It can effectively isolate the current that may remain on the tool to prevent the operator from electric shock. The plastic material also has good heat resistance and is not easy to age and deform after long-term use. The end of the pliers handle 700 close to the upper pliers head 100 and the lower pliers head 200 is also fixedly connected with a retaining ring 710. The retaining ring 710 plays a limiting role to prevent the operator's hand from slipping to the pliers head, thereby improving the safety and reliability of the tool.

[0043] In this embodiment, the screw is one or more of a hexagonal screw, a slotted screw or a cross screw.

[0044] Specifically, the hexagonal screws are tightened with a hexagonal wrench, with uniform force and not easy to slip, and are suitable for connection parts that bear large torque, such as the connection between the upper and lower pliers and the pliers handle; the slotted screws and cross screws can be tightened with a slotted screwdriver or a cross screwdriver, which is easy to operate and suitable for the connection of parts that are frequently installed and disassembled manually, such as the installation of the wire cutter 610, the pressure pad 620, the rib cutter 250, etc. The reasonable use of different types of screws can meet the connection requirements of various parts of the tool, ensuring the firmness of the connection while taking into account the convenience of assembly and maintenance.

[0045] This low-voltage household line stripping tool integrates multiple functions such as stripping, wire cutting, and rib cutting. The insulation layer of the insulated wire can be quickly stripped by the skin cutting mechanism 400, the insulation wire skin can be cut by the wire cutting mechanism 600, and the double-strand insulated wire can be easily separated by the rib cutting knife 250. Multiple functional modules do not interfere with each other and can be disassembled and replaced separately to adapt to the operation of wires of different specifications. The upper cutting die 410 and the lower cutting die 440 cooperate with the wire guide plate 460 and the scale mark 480 to accurately control the stripping length of the insulation layer to avoid stripping too long or too short. Compared with traditional stripping tools, this tool has more complete functions and is more convenient to use in low-voltage household line operations, which greatly improves the efficiency and safety of low-voltage household line construction operations and has broad application prospects.

[0046] Example 2 See also Figure 8 The technical features that distinguish this embodiment from the first embodiment are as follows: a frame-shaped fourth groove 900 is provided at the inner front end of the upper pliers head 100 and the lower pliers head 200, and strip grooves 910 are provided on both sides of the fourth groove 900; the top shapes of the upper cutting mold 410 and the lower cutting mold 440 are adapted to the size of the fourth groove 900, and the upper cutting mold 410 and the lower cutting mold 440 are inserted into the inside of the fourth groove 900; second spring top beads 920 are installed on the outer sides of the upper cutting mold 410 and the lower cutting mold 440; the second spring top beads 920 are interlaced and connected with the top bead holes 930 provided in the fourth groove 900, so as to lock the upper cutting mold 410 and the lower cutting mold 440.

[0047] Specifically, when disassembling and assembling the upper cutting die 410 and the lower cutting die 440, the top of the upper cutting die 410 and the lower cutting die 440 can be directly inserted into the fourth groove 900 of the upper clamp head 100 and the lower clamp head 200 respectively, and at the same time, the top bead of the second spring top bead 920 bounces into the top bead hole 930 to lock the upper cutting die 410 and the lower cutting die 440 to prevent the upper cutting die 410 and the lower cutting die 440 from falling accidentally.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Low voltage household line stripping tool, characterized by: It comprises an upper clamp head (100) and a lower clamp head (200), wherein the inner front ends of the upper clamp head (100) and the lower clamp head (200) are each provided with a first groove (300), and the skin cutting mechanisms (400) are detachably installed inside the two first grooves (300); A second groove (500) is provided at the middle of the inner side of each of the upper clamp head (100) and the lower clamp head (200), and a wire breaking mechanism (600) is detachably installed inside the two second grooves (500); The rear parts of the upper pliers head (100) and the lower pliers head (200) are rotatably connected via a pin, the tail ends of the upper pliers head (100) and the lower pliers head (200) are sleeved with pliers handles (700), and a spring (800) is fixedly connected between the front ends of the two pliers handles (700).

2. The low-voltage household line stripping tool according to claim 1, characterized in that: The skin cutting mechanism (400) comprises an upper cutting die (410) embedded in a first groove (300) of an upper clamp head (100), a cutting groove (420) being provided in the middle of the upper cutting die (410), a skin cutting knife (430) being embedded in the interior of the cutting groove (420), a lower cutting die (440) being embedded in the first groove (300) of the lower clamp head (200), and arc-shaped threading grooves (450) being provided on the inner sides of the lower cutting die (440) and the upper cutting die (410).

3. The low-voltage household line stripping tool according to claim 2, characterized in that: One end of the upper cutting die (410) and the lower cutting die (440) are fitted with a wire guide plate (460), the inner side of the wire guide plate (460) is provided with a semicircular conical countersunk hole (470), and the inner sides of the upper cutting die (410) and the lower cutting die (440) are laser engraved with scale marks (480).

4. The low-voltage household line stripping tool according to claim 3, characterized in that: The upper cutting die (410) is fixedly connected to a first screw hole (110) at the front end of the upper pliers head (100) by means of a screw, and one end of the screw passes through the cutting groove (420) and is fixedly connected to a second screw hole (431) provided in the skin cutting knife (430). The lower cutting die (440) is fixedly connected to a third screw hole (210) provided at the bottom of the lower pliers head (200) by means of a screw. The two wire guide plates (460) are fixedly connected to fourth screw holes (490) provided at one end of the upper cutting die (410) and the lower cutting die (440) by means of screws.

5. The low-voltage household line stripping tool according to claim 4, characterized in that: The wire cutting mechanism (600) comprises a wire cutting knife (610) embedded in one end of the second groove (500) of the upper clamp head (100); a pressure pad (620) embedded in the second groove (500) of the lower clamp head (200) is provided at the bottom of the wire cutting knife (610); the top of the pressure pad (620) is arranged flush with the notch of the second groove (500).

6. The low-voltage household line stripping tool according to claim 5, characterized in that: The wire cutter (610) is fixedly connected to a fifth screw hole (120) provided in the middle of the upper clamp head (100) by means of screws, and the pressure pad (620) is fixedly connected to a sixth screw hole (220) provided in the top of the lower clamp head (200) by means of screws.

7. The low-voltage household line stripping tool according to claim 6, characterized in that: A third groove (230) is provided at the bottom of the middle portion of the lower clamp head (200), a seventh screw hole (240) is provided at one end inside the third groove (230), and a rib cutting knife (250) is connected to the seventh screw hole (240) via a screw.

8. The low-voltage household line stripping tool according to claim 7, characterized in that: A first spring top bead (260) is installed at the other end of the third groove (230), and a top bead groove (270) is provided on the inner side of one end of the rib cutting knife (250).

9. The low-voltage household line stripping tool according to claim 1, characterized in that: One end of the clamp handle (700) close to the upper clamp head (100) and the lower clamp head (200) is fixedly connected to a retaining ring (710), and the clamp handle (700) is made of insulating heat-resistant plastic material.

10. The low-voltage household line stripping tool according to claim 7, characterized in that: The screw is one or more of a hexagonal screw, a slotted screw or a cross screw.

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