Manual wire arc bending tool

Abstract

The invention discloses a manual wire arc bending tool, and relates to the field of power construction tools, the manual wire arc bending tool comprises a mounting unit, the mounting unit comprises an arc bending plate and a base arranged on the arc bending plate, and the arc bending plate is provided with an arc bending guide groove and a handle; the center positioning unit comprises a center positioning part arranged on the bent arc plate and a center limiting part arranged on the center positioning part; and the wire positioning unit comprises a wire arc bending part of which one end is rotationally arranged on the arc bending plate and the other end is arranged on the arc bending guide groove in a sliding manner, and a wire positioning part arranged on the arc bending plate. According to the manual wire arc-bending tool, the wire positioning unit is arranged on the arc-bending plate, the wire positioning part and the center positioning unit are used for fixing the wire, and the wire arc-bending part is used for arc-bending the wire, so that the problems that time and labor are consumed when the wire is manually bent, the bending angle of a cable cannot be ensured to be consistent all the time, and the working efficiency is high are solved. And the appearance quality of the finished wire is poor and the danger coefficient is high.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power construction tools, and in particular to a manual wire bending tool. Background Art

[0002] During the erection of high-voltage power transmission and distribution lines, cable bending is an increasingly prominent problem, affecting construction efficiency, quality, and safety. Traditional cable bending methods lack efficient tools and technical support. Construction workers usually can only rely on wearing insulating gloves and bend the cable manually. However, this method is inadequate when facing complex bending angles and fine appearance requirements, resulting in a series of problems.

[0003] Manual wire bending is time-consuming and laborious, requiring construction workers to invest a large amount of physical strength and time, especially in cases where frequent and complex bending is needed. This not only prolongs the construction period but also increases the labor intensity. At the same time, the bending angle is unstable. Due to the uncertainty of manual operation, it is impossible to ensure that the bending angles of the cables are always consistent, which may cause excessive distortion or insufficiency near the bending points of the cables, thereby affecting the performance and safety of the cables. Secondly, the appearance quality of manual bending is poor. Cables usually need to present a certain degree of aesthetics in power transmission and distribution lines, and it is difficult to ensure the consistency of appearance quality by manual bending, and the risk factor is relatively high. Summary of the Invention

[0004] In view of the problems existing in the above-mentioned existing manual wire bending tools, the present invention is proposed.

[0005] Therefore, the present invention provides a manual wire bending tool, and its purpose is to solve the technical problems of time-consuming and laborious manual wire bending, inability to ensure that the bending angles of the cables are always consistent, poor appearance quality of the wire finished products, and relatively high risk factor.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A manual wire bending tool includes an installation unit, a central positioning unit, and a wire positioning unit.

[0007] Among them, the installation unit includes a bending arc plate and a base provided on the bending arc plate. A bending arc guiding groove and a handle are provided on the bending arc plate; the central positioning unit includes a central positioning portion provided on the bending arc plate and a central limiting portion provided on the central positioning portion; and the wire positioning unit includes a wire bending arc portion rotatably provided at one end on the bending arc plate and slidably provided at the other end on the bending arc guiding groove, and a wire positioning portion provided on the bending arc plate.

[0008] As a preferred embodiment of the manual wire bending tool of the present invention, wherein: the wire positioning part includes a lower positioning plate arranged on the bending arc plate, a positioning plate connecting piece arranged on the lower positioning plate, and an upper positioning plate arranged on the positioning plate connecting piece.

[0009] As a preferred embodiment of the manual wire bending tool of the present invention, wherein: the positioning plate connecting piece includes a first clamping plate arranged on the lower positioning plate, a second clamping plate arranged on the upper positioning plate and rotatably connected to the first clamping plate, and a first spring arranged between the first clamping plate and the second clamping plate.

[0010] As a preferred embodiment of the manual wire bending tool of the present invention, wherein: the upper positioning plate includes a guiding strip arranged on the second clamping plate, and a plurality of groups of wire limiting members slidably arranged on the guiding strip; a slot is arranged on the guiding strip.

[0011] As a preferred embodiment of the manual wire bending tool of the present invention, wherein: the wire limiting member includes a wire limiting piece, a limiting groove arranged on the wire limiting piece, a first connecting rod arranged on the wire limiting piece, and an inserting piece slidably arranged on the guiding strip and corresponding to the slot; the inner diameter sizes of the limiting grooves of the plurality of groups of wire limiting pieces are different.

[0012] As a preferred embodiment of the manual wire bending tool of the present invention, wherein: the wire bending arc part includes a wire rotating assembly rotatably arranged on the bending arc plate, and an adjusting assembly arranged on the wire rotating assembly and slidably connected to the bending arc guiding groove.

[0013] As a preferred embodiment of the manual wire bending tool of the present invention, wherein: the wire rotating assembly includes a wire rotating positioning part, and a second connecting rod arranged on the wire rotating positioning part and connected to the adjusting assembly;

[0014] The wire rotating positioning part has the same structure as the wire positioning part.

[0015] As a preferred embodiment of the manual wire bending tool of the present invention, wherein: the adjusting assembly includes a central rotating seat arranged on the bending arc plate, a rotating rod arranged on the central rotating seat and provided with the wire rotating assembly, a guiding groove arranged on the rotating rod, a rotating handle arranged at the end of the rotating rod, and an adjusting limiting member slidably arranged on the guiding groove;

[0016] The adjustment and limit member includes a sliding seat slidably disposed on the guiding groove, a limit plate disposed on the sliding seat, a limit rod slidably disposed on the limit plate, a knob inserted on the limit rod, a second spring slidably sleeved on the limit rod, and a latch disposed on the knob; a card slot corresponding to the latch is disposed on the sliding seat;

[0017] A plurality of rotation limit grooves corresponding to the limit rod are disposed on the arc-shaped plate.

[0018] As a preferred embodiment of the manual wire bending tool of the present invention, wherein: the central positioning portion includes a positioning mounting seat disposed on the arc-shaped plate, a dismounting positioning seat threadedly connected to the positioning mounting seat, and a wire positioning sleeve disposed between the positioning mounting seat and the dismounting positioning seat.

[0019] As a preferred embodiment of the manual wire bending tool of the present invention, wherein: the central limit portion includes an adjusting plate disposed on the wire positioning sleeve, an adjusting member disposed on the adjusting plate, and a wire supporting member disposed on the adjusting member;

[0020] The adjusting member includes a lead screw threadedly connected to the adjusting plate and disposed on the wire supporting member, and a guiding rod disposed on the wire supporting member, slidably connected to the adjusting plate, and parallel to the lead screw;

[0021] The wire supporting member includes a supporting flat plate disposed on the lead screw and the guiding rod, and a supporting arc-shaped plate disposed on the supporting flat plate.

[0022] The beneficial effects of the present invention: By providing a wire positioning unit on the arc-shaped plate, the wire is fixed by the wire positioning portion and the central positioning unit, and at the same time, the wire is quickly bent by the wire bending portion. The bending angle of the wire bending portion can be adjusted by the rotation angle relative to the arc-shaped plate, thereby solving the technical problems of time-consuming and laborious when manually bending wires, unable to ensure that the bending angles of the cables are always consistent, poor appearance quality of the wire finished products, and relatively high danger coefficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of the manual wire bending tool of the present invention before wire bending.

[0025] Figure 2 This is a schematic structural diagram of the manual wire bending tool of the present invention after wire bending.

[0026] Figure 3 This is an exploded view of the installation unit of the manual wire bending tool of the present invention.

[0027] Figure 4 This is a schematic structural diagram of the wire positioning part of the manual wire bending tool of the present invention.

[0028] Figure 5 This is an exploded view of the wire positioning part of the manual wire bending tool of the present invention.

[0029] Figure 6 This is a schematic structural diagram of the wire bending part of the manual wire bending tool of the present invention.

[0030] Figure 7 This is a rear view of the manual wire bending tool of the present invention after wire bending.

[0031] Figure 8 This is a front view of the manual wire bending tool of the present invention after wire bending. Specific Embodiments

[0032] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings of the specification.

[0033] Example 1, referring to Figures 1 - 3 , which is the first embodiment of the present invention, provides a manual wire bending tool. This device includes a manual wire bending tool, including an installation unit 100, a central positioning unit 200, and a wire positioning unit 300.

[0034] Among them, the installation unit 100 includes a bending arc plate 101 and a base 102 provided on the bending arc plate 101. A bending arc guide groove 101a and a handle 101c are provided on the bending arc plate 101. The bending arc plate 101 is arranged in a semicircular plate-like structure. The bending arc guide groove 101a is arranged parallel to the arc edge of the bending arc plate 101 and penetrates through the bending arc plate 101. The handle 101c is provided to facilitate the carrying of the wire bending tool. The base 102 is provided, and a positioning member for fixedly connecting with the workbench, such as a suction cup, etc., is provided on the base 102 to ensure the stability of the overall tool when bending the wire.

[0035] The central positioning unit 200 includes a central positioning portion 201 disposed on the bent arc plate 101 and a central limiting portion 202 disposed on the central positioning portion 201. The central positioning portion 201 is provided to facilitate the positioning of the bent section of the wire, and the central limiting portion 202 is provided to facilitate the stable setting of wires with different diameters on the central limiting portion 202.

[0036] Moreover, the wire positioning unit 300 includes a wire bending arc portion 301 with one end rotatably disposed on the bent arc plate 101 and the other end slidably disposed on the bent arc guiding groove 101a, and a wire positioning portion 302 disposed on the bent arc plate 101. One end of the wire to be bent is fixedly disposed on the wire positioning portion 302. The wire positioning portion 302 is disposed at one end of the bent arc guiding groove 101c. The other end of the wire is disposed on the wire bending arc portion 301. The wire bending arc portion 301 can slide on the bent arc plate 101 along the bent arc guiding groove 101a, so as to bend the wire with the central positioning portion 201 as the center of the circle.

[0037] During the use process, the bent section of the wire to be bent is disposed on the central positioning unit 200 on the bent arc plate 101. The bent arc plate 101 is arranged as a semi-circular plate-like structure. The bent arc guiding groove 101a is arranged parallel to the arc edge of the bent arc plate 101 and penetrates through the bent arc plate 101. A handle 101c is provided to facilitate the carrying of the wire bending tool. A base 102 is provided, and positioning members for fixedly connecting with the workbench, such as adsorption suction cups, etc., are disposed on the base 102 to facilitate ensuring the stability of the overall tool when bending the wire. The central positioning portion 201 is provided to facilitate the positioning of the bent section of the wire, and the central limiting portion 202 is provided to facilitate the stable setting of wires with different diameters on the central limiting portion 202. One end of the wire to be bent is fixedly disposed on the wire positioning portion 302. The wire positioning portion 302 is disposed at one end of the bent arc guiding groove 101c. The other end of the wire is disposed on the wire bending arc portion 301. The wire bending arc portion 301 can slide on the bent arc plate 101 along the bent arc guiding groove 101a, so as to bend the wire with the central positioning portion 201 as the center of the circle. During the entire wire bending process, only the rotation angle of the wire bending arc portion 301 on the bent arc guiding groove 101a needs to be controlled to limit and adjust the wire bending angle, improving the work efficiency of wire bending, ensuring the stability of the wire bending angle, and being able to ensure the uniformity of the wire bending appearance quality.

[0038] Example 2, refer to Figures 1 - 5, which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is as follows: The wire positioning part 302 includes a lower positioning plate 302a arranged on the arc-bending plate 101, a positioning plate connecting part 302c arranged on the lower positioning plate 302a, and an upper positioning plate 302b arranged on the positioning plate connecting part 302c. The arrangement of the positioning plate connecting part 302c facilitates adjusting the positional relationship between the upper positioning plate 302b and the lower positioning plate 302a, thereby facilitating fixing the wire to be arc-bent within the wire positioning part 302.

[0039] Compared with Embodiment 1, further, the positioning plate connecting part 302c includes a first clamping plate 302c-1 arranged on the lower positioning plate 302a, a second clamping plate 302c-2 arranged on the upper positioning plate 302b and rotatably connected to the first clamping plate 302c-1, and a first spring 302c-3 arranged between the first clamping plate 302c-1 and the second clamping plate 302c-2. The positioning plate connecting part 302c is arranged in a structure similar to an elastic clip, and the first spring 302c-3 is used to adjust the positional relationship between the upper positioning plate 302b and the lower positioning plate 302a. When the first spring 302c-3 remains stationary, the positional relationship between the upper positioning plate 302b and the lower positioning plate 302a is in close contact with each other. When the first spring 302c-3 remains contracted, the positional relationship between the upper positioning plate 302b and the lower positioning plate 302a is away from each other, thereby facilitating fixing the wire to be arc-bent between the upper positioning plate 302b and the lower positioning plate 302a.

[0040] Further, the upper positioning plate 302b includes a guiding strip 302b-1 arranged on the second clamping plate 302c-2, and a plurality of groups of wire limiting members 302b-2 slidably arranged on the guiding strip 302b-1; a slot 302b-11 is arranged on the guiding strip 302b-1. By arranging the slot 302b-11 on the guiding strip 302b-1, it is convenient to slidably arrange the wire limiting members 302b-2 on the guiding strip 302b-1. Wire limiting pieces 302b-21 for wires of different diameters are arranged inside the wire limiting members 302b-2. Sliding the wire limiting members 302b-2 facilitates adjusting the position of the corresponding wire limiting pieces 302b-21 according to the specific diameter of the wire.

[0041] Further, the wire limiting member 302b-2 includes a wire limiting piece 302b-21, a limiting groove 302b-22 provided on the wire limiting piece 302b-21, a first connecting rod 302b-23 provided on the wire limiting piece 302b-21, and a inserting piece 302b-24 slidably arranged on the guiding strip 302b-1 and corresponding to the inserting slot 302b-11. The inserting piece 302b-24 drives the wire limiting piece 302b-21 to slide on the guiding strip 302b-1. The first connecting rod 302b-23 is provided to connect multiple groups of wire limiting pieces 302b-21 together, thereby ensuring the overall linkage integrity of multiple groups of wire limiting pieces 302b-21. At the same time, it is also convenient to adjust the positional relationship of the wire limiting pieces 302b-21 according to the diameter size of the wire. The inner diameter sizes of the limiting grooves 302b-22 of multiple groups of wire limiting pieces 302b-21 are different, so as to facilitate adjusting the position of the corresponding wire limiting piece 302b-21 according to the specific diameter of the wire.

[0042] Further, the wire bending arc portion 301 includes a wire rotating assembly 301a rotatably arranged on the bending arc plate 101, and an adjusting assembly 301b provided on the wire rotating assembly 301a and slidably connected to the bending arc guiding groove 101a. The adjusting assembly 301b drives the wire rotating assembly 301a to rotate on the bending arc plate 101, so as to rotate relative to the wire positioning portion 302. Through the relative position change between the wire bending arc portion 301 and the wire positioning portion 302, the bending of the wire is realized, and the bending end of the wire is arranged on the wire rotating assembly 301a.

[0043] Further, the wire rotating assembly 301a includes a wire rotating positioning portion 301a-1, and a second connecting rod 301a-2 provided on the wire rotating positioning portion 301a-1 and connected to the adjusting assembly 301b; the second connecting rod 301a-2 is rotatably connected to the wire rotating positioning portion 301a-1, which is convenient for flexibly adjusting the position of the wire during the bending process.

[0044] Preferably, the wire rotating positioning portion 301a-1 has the same structure as the wire positioning portion 302, which is convenient for clamping and fixing wires with different diameters.

[0045] Further, the adjusting assembly 301b includes a central rotating seat 301b-2 provided on the arc-shaped plate 101, a rotating rod 301b-1 provided on the central rotating seat 301b-2 and provided with a wire rotating assembly 301a, a guiding groove 301b-11 provided on the rotating rod 301b-1, a rotating handle 301b-3 provided at the end of the rotating rod 301b-1, and an adjusting limiting member 301b-4 slidably arranged on the guiding groove 301b-11. The rotating handle 301b-3 is used to drive the rotating rod 301b-1 to rotate on the arc-shaped plate 101, so as to drive the wire rotating and positioning portion 301a-1 on the connecting rod two 301a-2 to rotate on the arc-shaped plate 101. By providing the adjusting limiting member 301b-4, the rotation angle of the rotating rod 301b-1 can be controlled, so as to facilitate the control of the arc angle of the wire.

[0046] Preferably, the adjusting limiting member 301b-4 includes a sliding seat 301b-41 slidably arranged on the guiding groove 301b-11, a limiting plate 301b-47 provided on the sliding seat 301b-41, a limiting rod 301b-44 slidably arranged on the limiting plate 301b-47, a knob 301b-43 inserted on the limiting rod 301b-44, a second spring 301b-42 slidably sleeved on the limiting rod 301b-44, and a clamping rod 301b-46 provided on the knob 301b-43. The sliding seat 301b-41 is provided with a clamping groove 301b-45 corresponding to the clamping rod 301b-46. The arc-shaped plate 101 is provided with a plurality of groups of rotating limiting grooves 101b corresponding to the limiting rod 301b-44.

[0047] When the clamping rod 301b-46 is clamped in the clamping groove 301b-45, the limiting rod 301b-44 cannot slide relative to the limiting plate 301b-47, and the limiting rod 301b-44 is clamped in the rotating limiting groove 101b. A plurality of groups of rotating limiting grooves 101b are provided on the back surface of the arc-shaped plate 101 where the wire is arranged. The distribution law of the rotating limiting grooves 101b is centered on the central positioning unit 200 and scattered on the arc-shaped plate 101, so as to facilitate the limitation of the rotation path of the limiting rod 301b-44, and thus control the rotation angle of the rotating rod 301b-1. At the same time, the sliding seat 301b-41 can slide on the rotating rod 301b-1 and can also be stably arranged on the rotating rod 301b-1 during the rotation of the rotating rod 301b-1, so as to expand the adjustable angle range of the rotating rod 301b-1 and facilitate the corresponding connection with a plurality of groups of rotating limiting grooves 101b on the back surface of the arc-shaped plate 101. When the limiting rod 301b-44 is clamped with the rotating limiting groove 101b, the second spring 301b-42 remains stationary, and vice versa, during the rotation of the rotating rod 301b-1, the second spring 301b-42 remains in a contracted state.

[0048] During use, the bent section of the wire to be bent is arranged on the central positioning unit 200 on the arc bending plate 101. The arc bending plate 101 is arranged in a semi-circular plate-like structure. The arc bending guide groove 101a is arranged parallel to the arc edge of the arc bending plate 101 and penetrates through the arc bending plate 101. A handle 101c is provided to facilitate the carrying of the wire arc bending tool. A base 102 is provided, and a positioning member for fixedly connecting with the workbench, such as an adsorption suction cup, etc., is arranged on the base 102 to ensure the stability of the overall tool when bending the wire. A central positioning part 201 is provided to facilitate the positioning of the bent section of the wire, and a central limiting part 202 is provided to facilitate the stable arrangement of wires with different diameters on the central limiting part 202. One end of the wire to be bent is fixedly arranged on the wire positioning part 302. The wire positioning part 302 is arranged at one end of the arc bending guide groove 101c. The other end of the wire is arranged on the wire arc bending part 301. The wire arc bending part 301 can slide on the arc bending plate 101 along the arc bending guide groove 101a, so as to bend the wire with the central positioning part 201 as the center of the circle. During the entire arc bending process, only the rotation angle of the wire arc bending part 301 on the arc bending guide groove 101a needs to be controlled, so as to limit and adjust the arc bending angle of the wire, improve the working efficiency of arc bending, ensure the stability of the arc bending angle, and ensure the unity of the arc bending appearance quality.

[0049] The remaining structures are the same as those in Embodiment 1.

[0050] Embodiment 3, referring to Figures 1 - 8 , is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the central positioning part 201 includes a positioning mounting seat 201c arranged on the arc bending plate 101, a dismountable positioning seat 201a threadedly connected with the positioning mounting seat 201c, and a wire positioning sleeve 201b arranged between the positioning mounting seat 201c and the dismountable positioning seat 201a. By disassembling and installing the dismountable positioning seat 201a detachably arranged on the positioning mounting seat 201c, the wire positioning sleeve 201b can be replaced. By replacing the wire positioning sleeves 201b with different diameter sizes, wires with different diameters can be clamped and arranged on the central positioning part 201, improving the bending stability of wires with different diameters in the present invention.

[0051] Compared with Embodiment 2, further, the central limiting part 202 includes an adjusting plate 202a arranged on the wire positioning sleeve 201b, an adjusting member 202b arranged on the adjusting plate 202a, and a wire supporting member 202c arranged on the adjusting member 202b; the adjusting member 202b is arranged to drive the guiding and supporting member 202c to slide relative to the adjusting plate 202a, so as to facilitate the supporting and limiting of wires with different diameters, and improve the bending stability of wires with different diameters in the present invention.

[0052] Preferably, the adjusting member 202b includes a lead screw 202b-1 that is threadedly connected to the adjusting plate 202a and is disposed on the wire supporting member 202c, and a guide rod 202b-2 that is disposed on the wire supporting member 202c, is slidably connected to the adjusting plate 202a, and is arranged in parallel with the lead screw 202b-1; the rotation of the lead screw 202b-1 drives the wire supporting member 202c to slide relative to the adjusting plate 202a, and the guide rod 202b-2 is provided to improve the stability of the wire supporting member 202c during sliding.

[0053] Preferably, the wire supporting member 202c includes a supporting flat plate 202c-1 disposed on the lead screw 202b-1 and the guide rod 202b-2, and a supporting arc plate 202c-2 disposed on the supporting flat plate 202c-1. The supporting arc plate 202c-2 is set as an arc plate corresponding to the guiding shape, and the center of the arc of the arc plate is close to the center positioning portion 201.

[0054] During use, the bent section of the wire to be bent is arranged on the center positioning unit 200 on the bending arc plate 101. The bending arc plate 101 is set as a semi-circular plate-like structure. The bending arc guide groove 101a is arranged parallel to the arc edge of the bending arc plate 101 and penetrates through the bending arc plate 101. A handle 101c is provided to facilitate the carrying of the wire bending tool. A base 102 is provided, and a positioning member, such as a suction cup, for fixedly connecting to the workbench is arranged on the base 102 to facilitate ensuring the stability of the overall tool when bending the wire. The center positioning portion 201 is provided to facilitate positioning the bent section of the wire, and the center limiting portion 202 is provided to facilitate stably arranging wires of different diameters on the center limiting portion 202. By replacing the wire positioning sleeves 201b with different diameter sizes, wires of different diameters can be clamped and arranged on the center positioning portion 201, improving the bending stability of the present invention for wires of different diameters. One end of the wire to be bent is fixedly arranged on the wire positioning portion 302. The wire positioning portion 302 is arranged at one end of the bending arc guide groove 101c, and the other end of the wire is arranged on the wire bending portion 301. The wire bending portion 301 can slide on the bending arc plate 101 along the bending arc guide groove 101a, so as to bend the wire with the center positioning portion 201 as the center. During the entire bending arc process, only the rotation angle of the wire bending portion 301 on the bending arc guide groove 101a needs to be controlled to limit and adjust the bending arc angle of the wire, improving the working efficiency of the bending arc, ensuring the stability of the bending arc angle, and being able to ensure the unity of the bending arc appearance quality.

[0055] The remaining structures are the same as those of Embodiment 2.

[0056] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (for example, changes in the dimensions, scales, structures, shapes, and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number, or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be altered or re-ordered according to alternative embodiments. In the claims, any "means-plus-function" clauses are intended to cover the structures that perform the recited function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0057] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present invention or those features that are not relevant to implementing the present invention).

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. A manual wire bending arc tool, characterized in that: Comprising, An installation unit (100), including an arc-shaped bending plate (101) and a base (102) disposed on the arc-shaped bending plate (101). An arc-shaped bending guide groove (101a) and a handle (101c) are provided on the arc-shaped bending plate (101); A central positioning unit (200), including a central positioning portion (201) disposed on the arc-shaped bending plate (101) and a central limiting portion (202) disposed on the central positioning portion (201); and, A wire positioning unit (300), including a wire arc-bending portion (301) with one end rotatably disposed on the arc-shaped bending plate (101) and the other end slidably disposed on the arc-shaped bending guide groove (101a), and a wire positioning portion (302) disposed on the arc-shaped bending plate (101).

2. The manual wire bending arc tool according to claim 1, characterized in that: The wire positioning portion (302) includes a lower positioning plate (302a) disposed on the arc-shaped bending plate (101), a positioning plate connecting member (302c) disposed on the lower positioning plate (302a), and an upper positioning plate (302b) disposed on the positioning plate connecting member (302c).

3. The manual wire bending arc tool according to claim 2, characterized in that: The positioning plate connecting member (302c) includes a first clamping plate (302c-1) disposed on the lower positioning plate (302a), a second clamping plate (302c-2) disposed on the upper positioning plate (302b) and rotatably connected to the first clamping plate (302c-1), and a first spring (302c-3) disposed between the first clamping plate (302c-1) and the second clamping plate (302c-2).

4. The manual wire bending arc tool according to claim 3, wherein: The upper positioning plate (302b) includes a guide bar (302b-1) disposed on the second clamping plate (302c-2) and a plurality of groups of wire limiting members (302b-2) slidably disposed on the guide bar (302b-1); a slot (302b-11) is provided on the guide bar (302b-1).

5. The manual wire bending arc tool according to claim 4, characterized in that: The wire limiting member (302b-2) includes a wire limiting piece (302b-21), a limiting groove (302b-22) disposed on the wire limiting piece (302b-21), a first connecting rod (302b-23) disposed on the wire limiting piece (302b-21), and an insertion piece (302b-24) slidably disposed on the guide bar (302b-1) and corresponding to the slot (302b-11); the inner diameter sizes of the limiting grooves (302b-22) of the plurality of groups of wire limiting pieces (302b-21) are different.

6. The manual wire bending arc tool according to any one of claims 1-5, characterized in that: The wire arc-bending portion (301) includes a wire rotating assembly (301a) rotatably disposed on the arc-shaped bending plate (101) and an adjusting assembly (301b) disposed on the wire rotating assembly (301a) and slidably connected to the arc-shaped bending guide groove (101a).

7. The manual wire bending arc tool according to claim 6, characterized in that: The wire rotating assembly (301a) includes a wire rotating positioning portion (301a-1) and a second connecting rod (301a-2) disposed on the wire rotating positioning portion (301a-1) and connected to the adjusting assembly (301b); The wire rotation positioning part (301a-1) has the same structure as the wire positioning part (302).

8. The manual wire bending arc tool according to claim 7, wherein: The adjusting assembly (301b) includes a central rotating seat (301b-2) arranged on the arc-shaped plate (101), a rotating rod (301b-1) arranged on the central rotating seat (301b-2) and provided with the wire rotating assembly (301a), a guiding groove (301b-11) arranged on the rotating rod (301b-1), a rotating handle (301b-3) arranged at the end of the rotating rod (301b-1), and an adjusting limiting member (301b-4) slidably arranged on the guiding groove (301b-11); The adjusting limiting member (301b-4) includes a sliding seat (301b-41) slidably arranged on the guiding groove (301b-11), a limiting plate (301b-47) arranged on the sliding seat (301b-41), a limiting rod (301b-44) slidably arranged on the limiting plate (301b-47), a knob (301b-43) inserted on the limiting rod (301b-44), a second spring (301b-42) slidably sleeved on the limiting rod (301b-44), and a clamping rod (301b-46) arranged on the knob (301b-43); a clamping groove (301b-45) corresponding to the clamping rod (301b-46) is arranged on the sliding seat (301b-41); A plurality of groups of rotating limiting grooves (101b) corresponding to the limiting rod (301b-44) are arranged on the arc-shaped plate (101).

9. The manual wire bending arc tool according to claim 7 or 8, characterized in that: The central positioning part (201) includes a positioning mounting seat (201c) arranged on the arc-shaped plate (101), a dismounting positioning seat (201a) threadedly connected to the positioning mounting seat (201c), and a wire positioning sleeve (201b) arranged between the positioning mounting seat (201c) and the dismounting positioning seat (201a).

10. The manual wire bending arc tool according to claim 9, characterized in that: The central limiting part (202) includes an adjusting plate (202a) arranged on the wire positioning sleeve (201b), an adjusting member (202b) arranged on the adjusting plate (202a), and a wire supporting member (202c) arranged on the adjusting member (202b); The adjusting member (202b) includes a lead screw (202b-1) threadedly connected to the adjusting plate (202a) and arranged on the wire supporting member (202c), and a guiding rod (202b-2) arranged on the wire supporting member (202c), slidably connected to the adjusting plate (202a) and arranged in parallel with the lead screw (202b-1); The wire supporting member (202c) includes a supporting flat plate (202c-1) arranged on the lead screw (202b-1) and the guiding rod (202b-2), and a supporting arc-shaped plate (202c-2) arranged on the supporting flat plate (202c-1).

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