Wire bending pliers

Abstract

The utility model provides a kind of electric wire bending pliers, including the first pliers body and the second pliers body of cross arrangement, the first pliers body and the second pliers body are hinged connection by the part of respective middle, the end of the first pliers body, the second pliers head is respectively fixed with the second pliers head, the inside of the first pliers head is arranged the board body of L type, one side of board body can form the opening and closing with the inner wall surface of the second pliers head, the other side of board body can form stagger with the side wall of the second pliers head, the inside wall of board body is arrayed and is set several continuous line grooves along its vertical direction, the middle part of line groove is arc corner, and the head end of line groove is formed with arc blade edge;The side lower part of the second pliers head is provided with the abutting portion compatible with arc corner.The utility model integrates the two independent procedures of the bending of electric wire and stripping in one tool, and is completed once operation, and staff does not need to switch back and forth between steel wire pliers, stripping pliers and other tools, greatly improves the work efficiency of electric wire installation.

Description

Technical Field

[0001] This utility model relates to the field of bending pliers technology, specifically, it demonstrates a wire bending pliers. Background Technology

[0002] Wire cutters are commonly used during wire splicing, especially when straight wires need to be bent into right angles or other specific angles. However, due to the varying skill levels of wire cutters, this can lead to poor installation aesthetics and affect standardization. Furthermore, bending wires to the standard angle often requires repeated adjustments, resulting in low work efficiency and damage to the wire insulation. In addition, current wire cutters have limited functionality, requiring workers to replace the cutters, making them less effective. Utility Model Content

[0003] The purpose of this invention is to provide a wire bending pliers that provides accurate bending angles and high bending efficiency.

[0004] The technical solution is as follows: A wire bending pliers includes a first clamp body and a second clamp body arranged in a cross configuration. The first clamp body and the second clamp body are hinged together through their respective middle sections. A first clamp head and a second clamp head are respectively fixed to the ends of the first clamp body and the second clamp body. An L-shaped plate is provided on the inner side of the first clamp head. One side of the plate can form a flap with the inner wall of the second clamp head, and the other side of the plate can intersect with the side wall of the second clamp head. Several continuous wire grooves are arranged in an array along the vertical direction on the inner side wall of the plate. The middle part of the wire groove is an arc-shaped corner, and the head end of the wire groove forms an arc-shaped cutting edge. The lower part of one side of the second clamp head is provided with an abutment part that is adapted to the arc-shaped corner.

[0005] In addition, the above embodiments of this utility model may also have the following additional technical features: According to one embodiment of this utility model, the radius of the arc-shaped blade is smaller than the radius of the wire groove. This ensures that only the insulation is stripped without damaging the internal conductors of the wire.

[0006] According to one embodiment of this utility model, a first cutter and a second cutter are respectively provided on the inner surfaces of the first and second pliers heads. During the closing process of the first and second pliers heads, the first and second cutters can interleave each other, further enhancing the wire-cutting function.

[0007] According to one embodiment of this utility model, a first groove and a second groove are respectively provided on the inner surfaces of the first and second pliers. During the closing process of the first and second pliers, the first groove and the second groove can close together, and a plurality of first teeth and a plurality of second teeth are formed on the inner walls of both the first and second grooves. This further enhances the stripping function for thicker wires.

[0008] According to one embodiment of this utility model, the rear parts of the first clamp body and the second clamp body are respectively an outwardly protruding first arc-shaped gripping part and a second arc-shaped gripping part, and the first arc-shaped gripping part and the second arc-shaped gripping part are mirror-symmetrical. The arc-shaped design can better fit the palm of the hand and distribute the pressure on the hand during gripping.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The two separate processes of bending and stripping wires are integrated into one tool, which can be completed in one operation. Workers do not need to switch back and forth between tools such as wire cutters and wire strippers, which greatly improves the efficiency of wire installation.

[0010] 2. The arc-shaped corner in the middle of the cable tray and the corresponding abutment part provide precise constraints for bending the wires. Each bend can achieve a completely consistent standard angle, solving the problems of inconsistent angles and poor aesthetics caused by manual operation, and realizing "foolproof" operation. Attached Figure Description

[0011] Figure 1 This is a simplified schematic diagram of a wire bending pliers according to Embodiment 1 of this utility model; Figure 2 for Figure 1 A cross-sectional schematic diagram of the plate section; Figure 3 This is a diagram illustrating another embodiment of the wire bending pliers in Embodiment 2 of this utility model; Figure 4 This is a diagram illustrating yet another embodiment of the wire bending pliers in Embodiment 3 of this utility model; The relevant markings in the attached diagram are as follows: 100-first clamp body, 200-second clamp body, 110-first clamp head, 120-first gripping part, 130-plate body, 131-groove, 132-arc corner, 133-arc blade, 140-first cutter, 150-first groove, 151-first tooth, 210-second clamp head, 211-abutting part, 220-second gripping part, 230-second cutter, 240-second groove, 241-second tooth. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Example 1 Figure 1 This illustration shows a basic embodiment of the wire bending pliers of this invention. (Refer to...) Figure 1 The wire bending pliers mainly include a first clamp body 100 and a second clamp body 200. The first clamp body 100 and the second clamp body 200 are connected by a hinge shaft component at approximately the middle part of their length direction, so that the first clamp body 100 and the second clamp body 200 can rotate relative to each other around the hinge shaft. The hinge shaft can be a conventional hinge component in the art, such as a rivet, bolt, or nut.

[0014] A first clamp head 110 is fixedly provided at the front end of the first clamp body 100 (i.e., the end located on one side of the hinge shaft), and a second clamp head 210 is correspondingly fixedly provided at the front end of the second clamp body 200. The rear ends of the first clamp body 100 and the second clamp body 200 (i.e., the part held by the hand) extend to form a first gripping part 120 and a second gripping part 220, respectively. In this embodiment, the first gripping part 120 and the second gripping part 220 are preferably designed as outwardly convex arc shapes, and the two are mirror symmetrical. This ergonomic design can better fit the operator's palm, provide a more comfortable grip, and provide better leverage and effort-saving effect when applying force, while enhancing the stability of operation. Furthermore, the outer surfaces of the two gripping parts can be covered with insulating rubber sleeves (not shown in the figure) to provide insulation protection and anti-slip function.

[0015] Specifically, an L-shaped plate 130 is fixedly provided on the inner side of the first pliers 110 (i.e., the side facing the second pliers 210). The L-shaped plate 130 can be firmly combined with the first pliers 110 by means of welding, riveting or integral molding. The L-shaped plate 130 has two main working surfaces: its first working surface (e.g., the horizontal plate surface of the L-shape) can form an opening and closing fit with the inner wall surface of the second pliers 210 (i.e., the main wall surface facing the first pliers 110), that is, when the pliers open and close, the distance between the first working surface and the inner wall surface of the second pliers 210 changes; its second working surface (e.g., the vertical plate surface of the L-shape) can form an alternating fit with the side wall (e.g., the upper edge or the lower edge) of the second pliers 210.

[0016] Combination Figure 2As shown, on the inner sidewalls of the first and second working surfaces of the L-shaped plate 130, several continuous wire grooves 131 are arranged in an array along the vertical direction (i.e., roughly parallel to the length direction of the clamp body). That is to say, the wire grooves are continuously arranged on the two working surfaces of the L-shaped plate. The cross-section of these wire grooves 131 is usually semi-circular or arc-shaped, and their radius is designed to match the outer diameter of common wires and cables. They are usually used for wires with smaller dimensions, and each wire groove has the same specifications. The central region of each wire groove 131 forms an inwardly concave arc-shaped corner 132. The curvature of the arc-shaped corner 132 determines the angle and shape at which the wire is finally bent. For example, a 90-degree right-angle arc-shaped corner can be used to bend the wire into a right angle. At the end of the wire groove 131 facing the front end of the clamp jaws (i.e., the end away from the gripping part), an arc-shaped cutting edge 133 is formed. The arc-shaped cutting edge 133 is heat-treated and hardened to have a sharp cutting edge for cutting the outer insulation layer of the wire.

[0017] Corresponding to the arc corner 132 on the L-shaped plate 130, an abutment part 211 is provided on the lower part of one side of the second clamp head 210. The shape of the abutment part 211 is adapted to the arc corner 132. For example, it can be a raised arc surface or edge. When the first clamp head 110 and the second clamp head 210 are closed, the area of ​​the arc corner 132 on the L-shaped plate 130 gradually approaches the abutment part 211 until they merge and contact each other, thus forming a wire bend.

[0018] The working principle is as follows: When it is necessary to bend and strip the wires, the operator first places the part of the wire that needs to be bent and stripped into the wire groove 131, and makes its end close to or slightly beyond the arc-shaped blade 133. One wire or multiple wires can be placed in at the same time. Then, the operator grips the first grip 120 and the second grip 220 tightly, so that the first clamp head 110 and the second clamp head 210 close together.

[0019] During the closing process, the following actions occur: ① Positioning and initial clamping: The wire is accommodated in the wire groove 131 that matches its outer diameter, achieving precise positioning. As the clamping heads close, the wire is stably confined between the first working surface of the L-shaped plate 130 and the inner wall surface of the second clamping head 210.

[0020] ② Stripping: As the closing action continues, the arc-shaped blade 133 at the end of the wire groove 131 first contacts the insulation sheath of the wire. Since the radius of the arc-shaped blade 133 is designed to be smaller than the radius of the wire groove 131 (i.e. the outer diameter of the wire), the blade will cut into the insulation layer to a certain depth. This depth is controlled by calculation and manufacturing to ensure that it can completely cut the insulation layer of standard thickness without damaging the internal metal conductor, thus completing the side cutting of the wire insulation sheath.

[0021] ③ Bending: Almost simultaneously with or shortly after the wire stripping occurs, the bending action begins. The L-shaped plate 130 uses its second working surface as the force point to push the wire to bend around the abutment 211 on the second clamp head 210. Since the wire is firmly clamped and the bending deformation is constrained within the space formed by the arc corner 132 of the L-shaped plate 130 and the abutment 211, the wire is precisely bent into a standard angle (such as ninety degrees) that is consistent with the shape of the arc corner 132.

[0022] ④ Completion: Loosen the pliers and take out the processed wire. At this point, one end of the wire has been simultaneously cut off from the insulation and bent at a standard angle. The cut insulation sheet can then be pulled off.

[0023] Example 2 This embodiment further integrates the function of cutting wires based on the first embodiment. For example... Figure 3 As shown, a first cutter 140 and a second cutter 230 are respectively provided on the inner sides of the first jaw 110 and the second jaw 210. The first cutter 140 and the second cutter 230 are preferably made of high-strength tool steel and are heat-treated to ensure the hardness and durability of the cutting edge.

[0024] The first cutting blade 140 can be located in the area of ​​the first jaw 110 near the hinge axis, while the second cutting blade 230 is correspondingly located on the second jaw 210. During the process of the pliers being fully closed or nearly fully closed, the first cutting blade 140 and the second cutting blade 230 can interlock to form a cutting action similar to scissors. Their cutting edges can be designed as flat, beveled, or curved blades to adapt to cutting copper wire, aluminum wire, or even thinner steel wire.

[0025] Example 3 In addition to the aforementioned functions, this invention also enhances its clamping performance. (Reference) Figure 4 As shown, a first groove 150 and a second groove 240 can be machined on the inner sides of the first jaw 110 and the second jaw 210, respectively. The positions of the first groove 150 and the second groove 240 can be set in areas that do not affect the bending and cutting functions, such as the root of the jaw near the hinge shaft.

[0026] A plurality of first teeth 151 are formed on the inner wall of the first groove 150, and a plurality of second teeth 241 are formed on the inner wall of the second groove 240. These teeth can be continuous serrations, cross-hatching, or other surface textures that can increase friction. When the first jaw 110 and the second jaw 210 are closed, the first groove 150 and the second groove 240 can engage to form a complete or multi-segment clamping hole, and the first teeth 151 and the second teeth 241 engage with each other.

[0027] The toothed groove structure can firmly grip thicker diameter wires, making it especially suitable for forceful stripping.

[0028] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A wire bending pliers, comprising a first clamping body (100) and a second clamping body (200) arranged in a cross configuration, wherein the first clamping body (100) and the second clamping body (200) are hinged together at their respective intermediate portions, and a first clamping head (110) and a second clamping head (210) are respectively fixed to the ends of the first clamping body (100) and the second clamping body (200), characterized in that: The inner side of the first clamp head (110) is provided with an L-shaped plate (130). One side of the plate (130) can be opened and closed with the inner wall of the second clamp head (210), and the other side of the plate (130) can be intersected with the side wall of the second clamp head (210). Several continuous wire grooves (131) are arranged in an array along the vertical direction on the inner side wall of the plate (130). The middle part of the wire groove (131) is an arc-shaped corner (132), and the head end of the wire groove (131) is formed with an arc-shaped cutting edge (133). The second clamp (210) has an abutment part (211) on the lower side of one side that is adapted to the arc corner (132).

2. The wire bending pliers according to claim 1, characterized in that, The radius of the arc-shaped cutting edge (133) is smaller than the radius of the groove (131).

3. The wire bending pliers according to claim 1, characterized in that, The first pliers (110) and the second pliers (210) are respectively provided with a first cutter (140) and a second cutter (230) on their inner sides. During the closing process of the first pliers (110) and the second pliers (210), the first cutter (140) and the second cutter (230) can intersect each other.

4. The wire bending pliers according to claim 1, characterized in that, The first pliers (110) and the second pliers (210) are respectively provided with a first groove (150) and a second groove (240) on their inner sides. During the closing process of the first pliers (110) and the second pliers (210), the first groove (150) and the second groove (240) can close together, and a plurality of first teeth (151) and a plurality of second teeth (241) are formed on the inner walls of the first groove (150) and the second groove (240).

5. The wire bending pliers according to claim 1, characterized in that, The rear parts of the first clamp body (100) and the second clamp body (200) are respectively the first arc-shaped gripping part (120) and the second arc-shaped gripping part (220) protruding outward, and the first arc-shaped gripping part (120) and the second arc-shaped gripping part (220) are mirror symmetrical.

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