Multifunctional wire stripper special for installation and maintenance of electric tracing band and use method of multifunctional wire stripper

Abstract

The invention relates to a multifunctional wire stripper special for electric tracing band installation and maintenance and a using method, and belongs to the technical field of self-temperature-limiting electric tracing band installing.The multifunctional wire stripper comprises a wire stripper body, the wire stripper body comprises a first stripper body and a second stripper body, the middle sections of the first stripper body and the second stripper body are hinged to each other and are symmetrically distributed, and handles are arranged at one end of the first stripper body and one end of the second stripper body; one ends of the first plier body and the second plier body are provided with handles, the other ends of the first plier body and the second plier body are provided with plier heads, the ends, away from the handles, of the two plier heads are provided with shearing heads matched with each other, the plier heads of the first plier body and the second plier body can rotate to be closed or separated, and the sides, close to each other, of the two plier heads are provided with an outer sheath shearing assembly, an insulating sheath shearing assembly and a longitudinal cutting assembly. The tool has the advantages of being reasonable in design, diversified in function, high in efficiency, safe, reliable, easy to operate and capable of achieving circumferential cutting of an outer sheath of an electric tracing band, longitudinal cutting and circumferential cutting of an insulating sheath and terminal crimping through one tool, and avoiding carrying of various tools during operation.

Description

Technical Field

[0001] The present invention relates to the technical field of the installation of self-limiting temperature electric tracing tapes, and particularly relates to a multi-functional wire stripper and a using method dedicated to the installation and maintenance of electric tracing tapes. Background Art

[0002] The electric tracing tape has a flat strip structure. Traditional wire stripping tool pliers are difficult to adapt to its special shape, and the operation is relatively complex. In addition, the functions of existing tools suitable for wire stripping of electric tracing tapes are relatively single. Before the operation, a variety of tools (such as a utility knife, scissors, a wire pressing pliers, etc.) need to be carried, and the tools cooperate with each other to complete the entire wire stripping operation. Of course, some operators also use a simple scissors manually to achieve wire stripping. This kind of wire stripping operation that overly relies on manual work has potential safety hazards, is easy to hurt people, and has low efficiency. It is more restricted to operate in a cold environment.

[0003] Based on this, it is necessary to develop a multi-functional wire stripper dedicated to the installation and maintenance of electric tracing tapes to overcome the above technical problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a multi-functional wire stripper dedicated to the installation and maintenance of electric tracing tapes, which effectively overcomes the defects of the prior art.

[0005] The technical solution of the present invention for solving the above technical problem is as follows:

[0006] A multi-functional wire stripper dedicated to the installation and maintenance of electric tracing tapes includes a wire stripper body. The wire stripper body includes a first pliers body and a second pliers body that are symmetrically distributed with their middle sections hinged to each other. One end of each of the first pliers body and the second pliers body is provided with a handle, and the other end is respectively provided as a pliers head. The ends of the two pliers heads away from the handle are provided with cooperating cutting heads. The pliers heads of the first pliers body and the second pliers body can be rotated to close or separate from each other. On one side of the two pliers heads close to each other, there are provided an outer sheath cutting assembly, an insulating sheath cutting assembly, and a longitudinal cutting assembly.

[0007] On the basis of the above technical solution, the present invention can be further improved as follows.

[0008] Further, on one side of the two pliers heads close to each other, there are respectively symmetrically distributed first notches, second notches, and third notches in a C shape. The outer sheath cutting assembly is installed at the first notches of the two pliers heads, the insulating sheath cutting assembly is installed at the second notches of the two pliers heads, and the longitudinal cutting assembly is installed at the third notches of the two pliers heads.

[0009] Further, the outer sheath shearing assembly includes two first blades, the two first blades are respectively fixed on the same side of the first notches of the two jaws, and the middle parts of the edges of the two first blades close to each other are respectively recessed with C-shaped first cutting edges. When the two jaws are closed, the two first cutting edges enclose a first cutting area in the shape of an annular runway.

[0010] Further, the insulating sheath shearing assembly includes two second blades, the two second blades are respectively fixed on the same side of the second notches of the two jaws, and the middle parts of the edges of the two second blades close to each other are respectively recessed with C-shaped second cutting edges. When the two jaws are closed, the two second cutting edges enclose a second cutting area in the shape of an annular runway, and the width of the second cutting area is smaller than the width of the first cutting area.

[0011] Further, the longitudinal cutting assembly includes a tool holder and a tool bit, the tool holder and the tool bit are respectively fixed on the same side of the third notches of the two jaws, a C-shaped limiting notch is provided on the side of the tool holder close to the tool bit, and a conical third cutting edge is provided in the middle of the side of the tool bit close to the tool holder. When the two jaws are closed, the third cutting edge is embedded in the limiting notch.

[0012] Further, on the sides of the first pliers body and the second pliers body close to each other, at positions near their hinged parts, there is a crimping assembly for cooperating with each other and crimping terminals when the two approach each other.

[0013] Further, on the sides of the first pliers body and the second pliers body close to each other, at positions near their hinged parts, there are respectively protruding extension parts. A plurality of terminal pressing blocks protrude from the end of one of the extension parts, and a fitting groove corresponding to the terminal pressing blocks one by one is provided at the end of the other extension part. When one ends of the first pliers body and the second pliers body are closed, the terminal pressing blocks are embedded in the corresponding fitting grooves.

[0014] Further, an elastic member is connected between the handles, the middle sections of the first pliers body and the second pliers body overlap each other, and a locking member is provided on the middle section of either the first pliers body or the second pliers body. The locking member is used to lock the two when the jaws of the first pliers body or the second pliers body are closed.

[0015] Further, the locking member includes a sheet-shaped locking seat, a locking protrusion is provided on the outer edge of the locking seat, the locking seat is rotatably mounted on the side of the middle section of the first pliers body close to the second pliers body through a pin shaft, and a locking notch is provided at the outer edge of the middle section of the second pliers body. After the jaws of the first pliers body and the second pliers body are closed, the locking seat is used to rotate under the action of an external force, so that the locking protrusion extends into the locking notch and abuts against the wall surface of the locking notch, thereby preventing the jaws from opening.

[0016] The beneficial effects of the present invention are as follows: The structure is reasonably designed and has diversified functions. One tool can achieve circumferential cutting of the outer sheath of the electric tracing band, longitudinal cutting and circumferential cutting of the insulating sheath, and terminal crimping. It has high efficiency, is safe and reliable, easy to operate, and avoids carrying multiple tools during operation.

[0017] It also provides a method for using a multi-functional wire stripper dedicated to the installation and maintenance of electric tracing bands, which is characterized by including the following steps:

[0018] Step 1: Use the outer sheath shearing component of the wire stripper body to circumferentially cut a section at the end of the electric tracing band, so that the end of the internal insulating sheath is exposed. Then use the longitudinal cutting component to longitudinally cut the outer sheath along the length direction, and strip the cut part;

[0019] Step 2: Cut and strip the braided layer wrapped outside the insulating sheath;

[0020] Step 3: Use the insulating sheath shearing component to circumferentially cut a section at the end of the exposed insulating sheath, so that the end of the internal heating baseband is exposed. Then use the longitudinal cutting component to longitudinally cut the insulating sheath along the length direction, and strip the cut part;

[0021] Step 4: Use the cutting head to cut and strip the exposed heating baseband along the length direction, so that the internal bus bar is exposed. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the multi-functional wire stripper dedicated to the installation and maintenance of electric tracing bands of the present invention after the jaws are closed;

[0023] Figure 2 It is a schematic structural diagram of the multi-functional wire stripper dedicated to the installation and maintenance of electric tracing bands of the present invention after removing the shearing component;

[0024] Figure 3 It is another schematic structural diagram of the multi-functional wire stripper dedicated to the installation and maintenance of electric tracing bands of the present invention after removing the blade;

[0025] Figure 4 It is a schematic structural diagram of the electric tracing band involved during the operation of the multi-functional wire stripper dedicated to the installation and maintenance of electric tracing bands of the present invention;

[0026] Figure 5 It is a cross-sectional structural view of the outer sheath shearing component assembled on two jaws of the multi-functional wire stripper dedicated to the installation and maintenance of electric tracing bands of the present invention;

[0027] Figure 6 It is a split structural view of the outer sheath shearing component of the multi-functional wire stripper dedicated to the installation and maintenance of electric tracing bands of the present invention;

[0028] Figure 7The structural exploded view of the insulating sheath shearing assembly in the multi-functional wire stripper dedicated to the installation and maintenance of electric tracing tapes according to the present invention;

[0029] Figure 8 The structural exploded view of the longitudinal cutting assembly in the multi-functional wire stripper dedicated to the installation and maintenance of electric tracing tapes according to the present invention.

[0030] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0031] 1. Wire stripper body; 11. First pliers body; 12. Second pliers body; 13. Handle; 14. Shearing head; 15. Outer sheath shearing assembly; 16. Insulating sheath shearing assembly; 17. Longitudinal cutting assembly; 18. Crimping assembly; 20. Locking member; 21. First notch; 22. Second notch; 23. Third notch; 131. Elastic member; 151. First blade; 161. Second blade; 171. Tool holder; 172. Tool bit; 181. Terminal pressing block; 201. Locking seat; 202. Locking convex block; 1511. First cutting edge; 1611. Second cutting edge; 1711. Limiting notch; 1721. Third cutting edge. Detailed implementation manners

[0032] The principles and features of the present invention will be described below with reference to the attached drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0033] Embodiment

[0034] As shown in Figure 1 、 2 、4, the multi-functional wire stripper dedicated to the installation and maintenance of electric tracing tapes in this embodiment includes a wire stripper body 1. The above-mentioned wire stripper body 1 includes a first pliers body 11 and a second pliers body 12 that are symmetrically distributed and hinged to each other in the middle section (hinged through a pin shaft passing through both of them). One end of each of the above-mentioned first pliers body 11 and second pliers body 12 is provided with a handle 13, and the other end is respectively set as a pliers head. The ends of the two above-mentioned pliers heads away from the handle 13 are provided with a mutually cooperating shearing head 14. The pliers heads of the above-mentioned first pliers body 11 and second pliers body 12 can be rotated to close or separate from each other. An outer sheath shearing assembly 15, an insulating sheath shearing assembly 16, and a longitudinal cutting assembly 17 are provided on one side of the two above-mentioned pliers heads close to each other.

[0035] The usage method of the multi-functional wire stripper dedicated to the installation and maintenance of electric tracing tapes is as follows:

[0036] Step 1: Insert the end of the electric tracing band into the outer sheath shearing assembly 15. Close the jaws of the first pliers body 11 and the second pliers body 12. Use the outer sheath shearing assembly 15 of the wire stripping pliers body 1 to make a circumferential cut on the end of the electric tracing band for a section, so that the end of the internal insulating sheath is exposed. Then use the longitudinal cutting assembly 17 to longitudinally cut the outer sheath along the circumferential cut and strip the cut part;

[0037] Step 2: Cut and strip the braided layer wrapped outside the insulating sheath. This process can use other tools (such as a screwdriver, etc.);

[0038] Step 3: According to the method of Step 1, close the jaws of the first pliers body 11 and the second pliers body 12. Use the insulating sheath shearing assembly 16 to make a circumferential cut on the end of the exposed insulating sheath for a section, so that the end of the internal heating baseband is exposed. Then use the longitudinal cutting assembly 17 to longitudinally cut the insulating sheath along the length direction and strip the cut part;

[0039] Step 4: Use the cutting head 14 to cut and strip the exposed heating baseband along the length direction, so that the internal bus bar is exposed.

[0040] In the multi-functional wire stripping pliers dedicated to the installation and maintenance of the electric tracing band in this embodiment, the shapes of the first pliers body 11 and the second pliers body 12 are similar to those of traditional pliers. The first pliers body 11 and the second pliers body 12 can be opened and closed under the action of an external force around the terminal hinge, so that the jaws of the two can be closed or separated from each other (similarly, the handles 13 can be closed or separated from each other. When the two handles 13 are closed, the jaws of the two are also closed, and when the handles 13 are separated, the jaws are also separated). Using the closing of the jaws and the outer sheath shearing assembly 15, the outer sheath (designated as a in the figure) can be cut (circumferentially). Using the closing of the jaws and the insulating sheath shearing assembly 16, the insulating sheath (designated as b in the figure) can be cut (circumferentially). Using the closing of the jaws and the longitudinal cutting assembly 17, the outer sheath and the insulating sheath can be longitudinally cut along their longitudinal directions (that is, the length direction). Using the closing of the cutting head 14 at the end of the jaws, the heating baseband (designated as c in the figure) can be sheared and the bus bar (designated as d in the figure) can be stripped. The overall structure is reasonably designed and has diversified functions. One tool can realize the circumferential cutting of the outer sheath of the electric tracing band, the longitudinal and circumferential cutting of the insulating sheath, and terminal crimping, with high efficiency, safety and reliability, easy operation, and avoiding carrying a variety of tools during operation.

[0041] As a preferred implementation mode, such as Figure 3As shown in the figure, on the sides of the two above-mentioned clamping heads that are close to each other, symmetrically distributed C-shaped first notches 21, second notches 22, and third notches 23 are respectively formed. The above-mentioned outer sheath shearing assembly 15 is installed at the first notches 21 of the two above-mentioned clamping heads, the above-mentioned insulating sheath shearing assembly 16 is installed at the second notches 22 of the two above-mentioned clamping heads, and the above-mentioned longitudinal cutting assembly 17 is installed at the third notches 23 of the two above-mentioned clamping heads.

[0042] In the above-mentioned implementation, the settings of the first notch 21, the second notch 22, and the third notch 23 enable a region for accommodating the electric heating tape to be formed between the first notch 21, the second notch 22, and the third notch 23 on the two clamping heads after the clamping heads are closed. Then, in cooperation with the outer sheath shearing assembly 15, the insulating sheath shearing assembly 16, and the longitudinal cutting assembly 17 at each notch, the operation of shearing different structural layers of the electric heating tape is realized, and the design is relatively reasonable.

[0043] As a preferred implementation, as Figure 6 shown, the above-mentioned outer sheath shearing assembly 15 includes two first blades 151. The two above-mentioned first blades 151 are respectively fixed on the same side of the first notches 21 of the two above-mentioned clamping heads. The middle parts of the edges of the two above-mentioned first blades 151 that are close to each other are respectively recessed with C-shaped first cutting edges 1511. When the two above-mentioned clamping heads are closed, the two above-mentioned first cutting edges 1511 enclose a first cutting area in the shape of an annular runway.

[0044] In the above-mentioned implementation, when the clamping heads are separated, the end of the electric heating tape is inserted and passed through between the first cutting edges 1511 of the two first blades 151. Then, the handle 13 of the wire stripping pliers body 1 is closed, so that the clamping heads are closed. The two first cutting edges 1511 act on both sides of the electric heating tape respectively, and the outer sheath of the electric heating tape can be cut off (if there are uncut parts, use the cutting head 14 to operate and cut them). The operation is relatively convenient and fast.

[0045] It should be noted that: as Figure 3 、 5 、6 shown, the two clamping heads can be in a relationship of staggered superposition. One of the first blades 151 is fixed to the side end of the corresponding clamping head through a screw passing through it, and a first limiting block (designated as e in the figure) is clamped between the other first blade 151 and the side end of the corresponding clamping head, and is assembled with the clamping head through a screw passing through the limiting block and the first blade 151. This can ensure that the two first blades 151 are in the same plane and ensure the effective cutting of the outer sheath.

[0046] As a preferred implementation, as Figure 7As shown, the above-mentioned insulating sheath shearing assembly 16 includes two second blades 161. The two second blades 161 are respectively fixed on the same side of the second notches 22 of the two jaws. The middle parts of the edges of the two second blades 161 close to each other are respectively recessed with C-shaped second cutting edges 1611. When the two jaws are closed, the two second cutting edges 1611 enclose a second cutting area in the shape of an annular runway, and the width of the second cutting area is smaller than the width of the first cutting area.

[0047] In the above-mentioned implementation, the end of the electric heating tape after stripping the outer sheath is inserted into and passed through between the second cutting edges 1611 of the two second blades 161, and the handle 13 of the wire stripping pliers body 1 is operated to close, so that the jaws are closed. The two second cutting edges 1611 act on both sides of the electric heating tape respectively, and the insulating sheath of the electric heating tape can be cut off (if there are uncut parts, use the cutting head 14 to operate and cut them). The operation is relatively convenient and fast.

[0048] It should be noted that: the two jaws can be in a relationship of staggered superposition. One of the second blades 161 is fixed to the side end of the corresponding jaw through a screw passing through it, and a second limiting block (designated as f in the figure) is clamped between the other second blade 161 and the side end of the corresponding jaw, and is assembled with the jaw through a screw passing through the second limiting block and the second blade 161. This can ensure that the two second blades 161 are in the same plane and ensure the effective cutting of the insulating sheath.

[0049] As a preferred implementation, as Figure 8 shown, the above-mentioned longitudinal cutting assembly 17 includes a tool holder 171 and a tool bit 172. The tool holder 171 and the tool bit 172 are respectively fixed on the same side of the third notches 23 of the two jaws. A C-shaped limiting notch 1711 is provided on the side of the tool holder 171 close to the tool bit 172. A conical third cutting edge 1721 is provided in the middle of the side of the tool bit 172 close to the tool holder 171. When the two jaws are closed, the third cutting edge 1721 is embedded in the limiting notch 1711.

[0050] In the above-mentioned implementation, when the outer sheath or the insulating sheath needs to be longitudinally cut, the electric heating tape is passed through the limiting notch 1711, the handle 13 is closed, so that the tip of the third cutting edge 1721 cuts into the outer sheath or the insulating sheath of the electric heating tape. Next, while maintaining the closed posture, the electric heating tape is pulled, and the outer sheath or the insulating sheath can be longitudinally cut along the length direction, and the operation is very convenient. More specifically, after the outer sheath or the insulating sheath is circumferentially cut, the end is inserted into and passed through the limiting notch 1711, the tip of the third cutting edge 1721 cuts into the middle position on one side of the outer sheath or the insulating sheath, and then the electric heating tape is pulled to longitudinally cut it.

[0051] It should be noted that: the third cutting edge 1721 has a certain width, and the width direction is perpendicular to the length direction of the pliers body. The tool holder 171 is assembled with the corresponding side end of the pliers head through a screw passing through it, and the tool bit 172 is also assembled with the corresponding side end of the pliers head through a screw passing through it.

[0052] In this embodiment, the above-mentioned blades (the first blade and the second blade) can be replaced with other sizes and models according to the usage requirements.

[0053] As a preferred embodiment, on the side where the first pliers body 11 and the second pliers body 12 are close to each other, a crimping assembly 18 is provided near the hinged part of the two for cooperating with each other and crimping the terminal when the two approach each other.

[0054] In the above-mentioned implementation scheme, when installing the terminal at the end of the electric tracing band, insert the terminal over the end of the bus bar inside, then place it at the crimping assembly 18, and close it by holding the handle 13 with an external force, so that the crimping assembly 18 can crimp the terminal at the end of the bus bar.

[0055] More specifically, on the side where the first pliers body 11 and the second pliers body 12 are close to each other, extension parts are respectively protrudingly provided near the hinged part of the two. At the end of one of the above-mentioned extension parts, a plurality of terminal pressing blocks 181 are protrudingly provided, and at the end of the other above-mentioned extension part, fitting grooves corresponding to the above-mentioned terminal pressing blocks 181 are provided. When one end of the first pliers body 11 and the second pliers body 12 is closed, the above-mentioned terminal pressing blocks 181 are embedded in the corresponding above-mentioned fitting grooves. Place the terminal inserted over the end of the bus bar into the fitting groove, hold the handle 13 and apply a gripping force, so that the terminal pressing blocks 181 can be embedded in the fitting grooves to crimp the terminal. The design is very ingenious and is conducive to terminal assembly.

[0056] In this embodiment, an elastic member 131 is connected between the above-mentioned handles 13. The middle sections of the first pliers body 11 and the second pliers body 12 overlap each other. A locking member 20 is provided in the middle section of any one of the first pliers body 11 or the second pliers body 12. The locking member 20 is used to lock the two when the jaws of the first pliers body 11 or the second pliers body 12 are closed. After the handle 13 is closed, the two first pliers bodies 11 or the second pliers bodies 12 can be locked by using the locking member 20, so that the first pliers body 11 and the second pliers body 12 are kept in the closed posture. The design of the elastic member 131 makes it necessary to compress the elastic member 131 when operating the handle 13 to close. After the operation is completed, when the external force is withdrawn, the handle 13 can automatically separate under the elastic force of the elastic member 131, that is, the jaws automatically separate, which is convenient for subsequent operations. Among them, the elastic member 131 can be a spring. At the same time, the locking member 20 can operate to lock the first pliers body 11 and the second pliers body 12 during the crimping process or when it is necessary to keep the jaws closed.

[0057] As a preferred embodiment, the above-mentioned locking member 20 includes a sheet-shaped locking seat 201. A locking protrusion 202 is provided on the outer edge of the locking seat 201. The locking seat 201 is rotatably mounted on the middle section of the first pliers body 11 near the second pliers body 12 through a pin shaft. A locking notch is provided on the outer edge of the middle section of the second pliers body 12. After the pliers heads of the first pliers body 11 and the second pliers body 12 are closed, the locking seat 201 is used to rotate under the action of an external force, so that the locking protrusion 202 extends into the locking notch and abuts against the wall surface of the locking notch, thereby preventing the pliers head from opening.

[0058] In the above-mentioned embodiment, after the pliers head is closed, rotating the locking seat 201 can make the locking protrusion 202 rotate to the end and abut against the wall surface of the locking notch, so as to avoid the outward displacement of the pliers head and prevent the pliers head from separating.

[0059] In this embodiment, a protruding operation part is further provided on the outer edge of the locking seat 201. Applying an external force to this operation part can drive the locking seat 201 to rotate.

[0060] In this embodiment, the locking seat 201 is rotatably assembled with the corresponding middle section of the pliers body through a locking pin at the center.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is 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 therefore should not be construed as a limitation of the present invention.

[0062] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0063] In the present invention, unless otherwise clearly defined or limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. 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 circumstances.

[0064] In the present invention, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely means that the first feature has a lower horizontal height than the second feature.

[0065] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0066] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A multifunctional wire stripper specially used for installation and maintenance of electric heating cables, characterized by: The invention comprises a wire stripper body (1), wherein the wire stripper body (1) comprises a first clamp body (11) and a second clamp body (12) which are hinged to each other in the middle section and symmetrically distributed, one end of each of the first clamp body (11) and the second clamp body (12) is provided with a handle (13), and the other end is respectively provided with a clamp head, and the ends of the two clamp heads away from the handle (13) are provided with mutually matching cutting heads (14), the clamp heads of the first clamp body (11) and the second clamp body (12) can be rotated to be closed or separated from each other, and the sides of the two clamp heads close to each other are respectively provided with an outer sheath cutting assembly (15), an insulating sheath cutting assembly (16) and a longitudinal cutting assembly (17).

2. A multifunctional wire stripper specially used for installation and maintenance of electric heating cables according to claim 1, characterized in that: A first notch (21), a second notch (22) and a third notch (23) of a C-shape are symmetrically arranged on the sides of the two pliers heads close to each other. The outer sheath cutting assembly (15) is mounted at the first notch (21) of the two pliers heads, the insulating sheath cutting assembly (16) is mounted at the second notch (22) of the two pliers heads, and the longitudinal cutting assembly (17) is mounted at the third notch (23) of the two pliers heads.

3. A multifunctional wire stripper specially used for installation and maintenance of electric heating cables according to claim 2, characterized in that: The outer sheath cutting assembly (15) comprises two first blades (151), the two first blades (151) are respectively fixed on the same side of the first notches (21) of the two pliers heads, and the middle parts of the edges of the two first blades (151) close to each other are respectively recessed with C-shaped first blades (1511). When the two pliers heads are closed, the two first blades (1511) enclose a first cutting area in the shape of an annular racetrack.

4. A multifunctional wire stripper specially used for installation and maintenance of electric heating cables according to claim 3, characterized in that: The insulating sheath cutting assembly (16) comprises two second blades (161), the two second blades (161) being fixed on the same side of the second notches (22) of the two pliers heads, respectively; the middle parts of the edges of the two second blades (161) close to each other are respectively provided with C-shaped second blade edges (1611); when the two pliers heads are closed, the two second blades (1611) enclose a second cutting area in the shape of an annular runway, and the width of the second cutting area is smaller than the width of the first cutting area.

5. A multifunctional wire stripper specially used for installation and maintenance of electric heating cables according to claim 2, characterized in that: The longitudinal cutting assembly (17) comprises a knife seat (171) and a knife head (172); the knife seat (171) and the knife head (172) are respectively fixed on the same side of the third notch (23) of the two pliers heads; a C-shaped limiting notch (1711) is provided on the side of the knife seat (171) close to the knife head (172); a conical third blade (1721) is provided in the middle of the side of the knife head (172) close to the knife seat (171); when the two pliers heads are closed, the third blade (1721) is embedded in the limiting notch (1711).

6. A multifunctional wire stripper specially used for installation and maintenance of electric heating cables according to claim 1, characterized in that: A crimping assembly (18) for cooperating with each other and crimping the terminal when the first clamp body (11) and the second clamp body (12) are brought close to each other is provided at a position near the hinged portion of the two.

7. A multifunctional wire stripper specially used for installation and maintenance of electric heating cables according to claim 6, characterized in that: An extension portion is protrudingly provided on one side of the first clamp body (11) and the second clamp body (12) close to each other at a position adjacent to the hinged portion of the two, and a plurality of terminal pressing blocks (181) are protrudingly provided at the end of one of the extension portions, and an insertion groove corresponding to the terminal pressing blocks (181) is provided at the end of the other extension portion, and when one end of the first clamp body (11) and the second clamp body (12) are closed, the terminal pressing blocks (181) are embedded in the corresponding insertion grooves.

8. The multifunctional wire stripper specially used for installation and maintenance of electric heating cables according to claim 1, characterized in that: An elastic member (131) is connected between the handles (13); the middle sections of the first pliers body (11) and the second pliers body (12) overlap each other; a locking member (20) is provided in the middle section of either the first pliers body (11) or the second pliers body (12); the locking member (20) is used to lock the first pliers body (11) or the second pliers body (12) when the pliers heads are closed.

9. A multifunctional wire stripper specially used for installation and maintenance of electric heating cables according to claim 8, characterized in that: The locking member (20) comprises a sheet-shaped locking seat (201), the outer edge of which is provided with a locking protrusion (202), the locking seat (201) being rotatably mounted on a side of the middle section of the first pliers body (11) close to the second pliers body (12) via a pin shaft, the outer edge of the middle section of the second pliers body (12) being provided with a locking notch, and after the pliers heads of the first pliers body (11) and the second pliers body (12) are closed, the locking seat (201) is used to rotate under the action of an external force, and allows the locking protrusion (202) to extend into the locking notch and abut against the wall of the locking notch, thereby inhibiting the pliers heads from opening.

10. A method for using the multifunctional wire stripper specially used for installation and maintenance of electric heating cables as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: using the outer sheath cutting assembly (15) of the wire stripping pliers body (1) to perform a circular cut on the end of the electric heating cable to expose the end of the inner insulating sheath, and then using the longitudinal cutting assembly (17) to longitudinally cut the outer sheath along the length direction, and peel off the cut part; Step 2: Cut and peel off the braided layer wrapped around the insulating sheath; Step 3: using the insulating sheath cutting component (16) to cut a section of the exposed end of the insulating sheath so that the internal heating baseband end is exposed, and then using the longitudinal cutting component (17) to longitudinally cut the insulating sheath along the length direction, and peel off the cut part; Step 4: Use a cutting head (14) to cut the exposed heating base tape along the length direction and peel it off, so as to expose the internal busbars.

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