Pliers, pliers handles and tooth piece

Abstract

The utility model provides pliers, a pliers handle and a tooth piece. The pliers comprise a first pliers handle, a second pliers handle and a hinged shaft, the first pliers handle is provided with a kidney-shaped hole, the kidney-shaped hole is provided with a first long edge, and the first long edge is provided with a tooth array; the hinged shaft is rotatably arranged on the second plier handle through the first part, the second part of the hinged shaft is arranged in the kidney-shaped hole and can move in the length direction of the kidney-shaped hole, and the second plier handle can move in the length direction of the kidney-shaped hole along with the hinged shaft; the forceps are characterized in that the first forceps handle comprises a main body and a tooth piece, and the tooth piece is fixed to the main body; a tooth array of the kidney-shaped hole is formed on the tooth piece.

Description

Technical Field

[0001] The present invention belongs to the technical field of hardware tools, and in particular relates to a pair of pliers, a pliers handle and a toothed part. Background Art

[0002] Pliers with adjustable jaws, such as water pump pliers, have one handle with a waist-shaped hole and the other handle with a hinge shaft. The hinge shaft can move in the waist-shaped hole to adjust the distance between the two jaws. Serrations are provided on one side of the waist-shaped hole, and an engaging structure that can cooperate with the serrations of the waist-shaped hole is provided on the hinge shaft, so that when clamping the workpiece, it can engage with the serrations to keep the two handles in the required relative position. The smaller the tooth pitch, the smaller the adjustment scale of the jaw size and the finer the adjustment. However, the finer the teeth, the higher the processing precision required. The pliers handle is generally formed by forging, and its dimensional precision requirements are low. Therefore, the forging process that meets the precision requirements of the pliers handle is difficult to meet the precision requirements of the teeth. Generally, a broach needs to be inserted into the waist-shaped hole and moved back and forth to process the side wall of the waist-shaped hole to form a tooth array. The processing efficiency is low and the process cost is high. In addition, tool wear will also cause poor dimensional consistency of the teeth, affecting the fit with the hinge shaft. Utility Model Content

[0003] The present disclosure aims to provide a pliers with lower cost.

[0004] In the first aspect, a pair of pliers is provided, comprising a first handle, a second handle and a hinge shaft, the first handle being provided with a waist-shaped hole, the waist-shaped hole having a first long side, and the first long side being provided with a tooth array; the hinge shaft is rotatably arranged on the second handle through a first part, the second part of the hinge shaft is arranged in the waist-shaped hole and can move along the length direction of the waist-shaped hole, and the second handle can move along the length direction of the waist-shaped hole with the hinge shaft; it is characterized in that the first handle comprises a main body and a tooth part, the tooth part is fixed to the main body; the tooth array of the waist-shaped hole is formed on the tooth part.

[0005] In a possible implementation, the first pliers handle is provided with a recessed portion, and the tooth member is embedded in the recessed portion.

[0006] In combination with the above possible implementation methods, in another possible implementation method, the tooth part has a first mounting portion at one end in the length direction, and / or the tooth part has a second mounting portion at one end in the length direction, and the first mounting portion and the second mounting portion are fixed to the pliers handle in the thickness direction of the pliers handle.

[0007] In combination with the above possible implementation manner, in another possible implementation manner, the waist-shaped hole is formed in the tooth member.

[0008] In the second aspect, a pliers handle is provided, which is provided with a waist hole, the waist hole has a first long side, and the first long side is provided with a tooth array; the waist hole is used for allowing the hinge shaft to move in the waist hole along the length direction of the waist hole; it is characterized in that the pliers handle includes a main body and a tooth part, the tooth part is fixed to the main body, and the tooth array of the waist hole is formed on the tooth part.

[0009] In a possible implementation, the main body is provided with a recessed portion, and the tooth member is embedded in the recessed portion.

[0010] In combination with the above possible implementation methods, in another possible implementation method, the tooth part has a first mounting portion at one end in the length direction, and / or the tooth part has a second mounting portion at one end in the length direction, and the first mounting portion and the second mounting portion are fixed to the pliers handle in the thickness direction of the pliers handle.

[0011] In combination with the above possible implementation manner, in another possible implementation manner, the waist hole is formed on the tooth member.

[0012] On the third aspect, a tooth part is provided, which is suitable for pliers with adjustable jaws, and a pliers handle is provided with a waist-shaped hole. It is characterized in that the tooth part has a long side, and the long side is provided with a tooth array. The tooth part is used to be fixed on the pliers handle and form a long side of the waist-shaped hole with the tooth array.

[0013] In one possible implementation, the tooth has a first mounting portion at one end in the length direction, and / or the tooth has a second mounting portion at one end in the length direction, and the first mounting portion and the second mounting portion are fixed to the clamp handle in the thickness direction of the clamp handle.

[0014] The pliers provided by the present disclosure have a tooth array of the pliers handle arranged on the tooth piece, which is a separate part and is easier to process. The tooth array is first processed on the tooth piece and then the tooth piece is mounted on the pliers handle, which reduces the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 A schematic diagram of pliers according to an embodiment of the present disclosure;

[0017] Figure 2 A schematic diagram of pliers according to another embodiment of the present disclosure;

[0018] Figure 3 for Figure 1 A schematic structural diagram of the first handle of the middle pliers;

[0019] Figure 4 for Figure 3 Exploded view of the first clamp handle;

[0020] Figure 5 for Figure 3 Schematic diagram of the structure of the toothed member installed on the first clamp handle.

[0021] Description of reference numerals:

[0022] 100-first clamp handle, 200-second clamp handle, 300-hinge shaft, 110-waist-shaped hole, 111-first long side, 112-second long side, 113-tooth array, 120-recessed portion, 150-clamp handle body, 400-tooth member, 410-body, 421-first mounting portion, 422-second mounting portion, 131-first slot, 132-second slot. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present disclosure without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0024] The features and exemplary embodiments of various aspects of the present disclosure will be described in detail below. In the detailed description below, many specific details are proposed in order to provide a comprehensive understanding of the present disclosure. However, it will be apparent to those skilled in the art that the present disclosure can be implemented without the need for some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present disclosure by illustrating examples of the present disclosure. The present disclosure is in no way limited to any specific structure and configuration proposed below, but rather covers any modification, replacement and improvement of parts, components and connection modes without departing from the spirit of the present disclosure. In the accompanying drawings and the following description, well-known structures and technologies are not shown in order to avoid unnecessary ambiguity in the present disclosure.

[0025] Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present disclosure.

[0026] The pliers provided by the present invention have a pliers handle provided with a toothed part that can be assembled and fixed to the pliers handle, and a tooth array of a waist-shaped hole is formed on the toothed part. The toothed part with the tooth array can be first processed through other processes, and then the toothed part can be assembled on the pliers handle, thereby reducing the process difficulty and reducing costs.

[0027] The embodiment of the present disclosure provides a pair of pliers, whose basic structure and function are consistent with the pliers in the prior art (such as Chinese patents CN104023917B and CN100413649C). The difference is that the structure of one of the handles is improved, making the pliers handle with a tooth array easier to process and manufacture, thereby reducing the process cost of the pliers.

[0028] The pliers include a first handle 100, a second handle 200 and a hinge shaft 300. The first handle 100 and the second handle 200 are hinged together by the hinge shaft 300. The second handle 200 and the hinge shaft 300 are rotatably connected. The first handle 100 is provided with a waist-shaped hole 110, and the hinge shaft 300 can slide in the waist-shaped hole 110 to adjust the relative position, and can also be maintained at any position in the waist-shaped hole 110. When the second handle 200 moves in the waist-shaped hole 110 with the hinge shaft 300, the opening size of the pliers mouth is adjusted. When the hinge shaft 300 is maintained at a certain position in the waist-shaped hole 110, the second handle 200 can rotate relative to the first handle 100 with the hinge shaft 300 as the rotation center, so that the pliers mouth can clamp the workpiece.

[0029] Specifically, the waist-shaped hole 110 has two long sides, namely a first long side 111 and a second long side 112. The length direction of the waist-shaped hole 110 is basically consistent with the length direction of the pliers handle. The first long side 111 is provided with a tooth array 113. The tooth array 113 is used to cooperate with the corresponding meshing teeth on the hinge shaft 300. Further, the first pliers handle 100 includes a main body 500 and a tooth part 400, the tooth part 400 is fixed to the main body 500, and the tooth array 113 of the waist-shaped hole 110 is formed on the tooth part 400. That is, the first long side 111 of the waist-shaped hole 110 on which the tooth array 113 is provided is a part of the tooth part 400, and the tooth part 400 is assembled to the first pliers handle 100 to form a complete waist-shaped hole 110. This arrangement allows the tooth array 113, which is more difficult to process, to be separated from the first clamp handle 100. When the tooth array 113 is formed on the tooth member 400, the tooth member 400 can be manufactured using a wider range of processing methods with lower processing difficulty, thereby reducing the processing cost of the first clamp handle 100. For example, the tooth member 400 can be manufactured using powder metallurgy or powder injection molding processes, which have lower manufacturing costs.

[0030] The tooth member 400 can be secured to the pliers handle body 150 by welding, bonding, riveting, screwing, interference fit, or other processes. In this embodiment, the first pliers handle 100 is provided with a recessed portion 120, into which the tooth member 400 is embedded. More specifically, the first pliers handle 100 is further provided with a first latching groove 131 and a second latching groove 132 to strengthen the connection strength with the tooth member 400. The first latching groove 131 and the second latching groove 132 are located at opposite ends of the waist-shaped hole 110. The first latching groove 131 and the second latching groove 132 are recessed along the thickness direction of the surface of the first pliers handle 100, that is, in the direction of the rotational centerline of the first pliers handle 100 and the second pliers handle 200. The tooth member 400 includes a main body 410, a first mounting portion 421, and a second mounting portion 422. The main body 410 is elongated, with the first mounting portion 421 and the second mounting portion 422 located at opposite ends. The thickness of the first mounting portion 421 and the second mounting portion 422 are less than that of the main body 410. When the tooth member 400 is installed in the main body 150 of the clamp handle, the main body 410 is embedded in the recessed portion 120, and the first mounting portion 421 and the second mounting portion 422 are respectively embedded in 313 and the second slot 132. The first mounting portion 421 and the first slot 131, and the second mounting portion 422 and the second slot 132 can be further fixed by rivets and / or glue. The recessed portion 120 is used to embed the main body 410 of the tooth member 400, and its depth is consistent with that of the tooth member 400. In this embodiment, the thickness of the tooth member 400 is consistent with the thickness of the first clamp handle 100. Therefore, the recessed portion 120 passes through the first clamp handle 100 and is connected to the waist-shaped hole 110 as a whole, with no obvious boundary between the two. Figure 4 The dotted line portion shown in FIG. 1 is the approximate location of the tooth array 113 when the tooth member 400 is mounted to the pliers handle body 150 , and is also the boundary of the recessed portion 120 .

[0031] In some alternative embodiments, only the first mounting portion 421 may be connected to the first latching slot 131. In some alternative embodiments, the entire waist-shaped hole is formed in the tooth member. That is, the tooth member is an annular structure, the annular hole is the waist-shaped hole, and one long side of the waist-shaped hole is the tooth array 113.

[0032] The disclosed embodiments also provide a pliers handle. The pliers handle comprises a main body and a toothed member, which is assembled onto the main body. As described in the previous embodiments, the separate arrangement of the pliers handle and the toothed member can reduce the difficulty of machining the tooth array and lower manufacturing costs.

[0033] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present disclosure, and such modifications or substitutions should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A pair of pliers comprising a first handle, a second handle, and a hinge shaft, wherein the first handle is provided with a waist-shaped hole, the waist-shaped hole having a first long side, and the first long side is provided with a tooth array; the hinge shaft is rotatably provided on the second handle via a first portion, the second portion of the hinge shaft is provided in the waist-shaped hole and can move along the length direction of the waist-shaped hole, and the second handle can move along the length direction of the waist-shaped hole with the hinge shaft; characterized in that: The first pliers handle includes a main body and a tooth part, and the tooth part is fixed to the main body; the tooth array of the waist-shaped hole is formed on the tooth part; the tooth part has a first mounting portion at one end in the length direction, and / or the tooth part has a second mounting portion at one end in the length direction, and the first mounting portion and the second mounting portion are fixed to the pliers handle in the thickness direction of the pliers handle. 2 . The pliers according to claim 1 , wherein the first pliers handle is provided with a recessed portion, and the tooth member is embedded in the recessed portion. The pliers according to claim 1 , wherein the waist-shaped hole is formed in the tooth member.

4. A pliers handle, provided with a waist hole, the waist hole having a first long side, the first long side being provided with a tooth array; the waist hole is used for allowing the hinge shaft to move in the waist hole along the length direction of the waist hole; characterized in that: The pliers handle includes a main body and a toothed member, the toothed member is fixed to the main body, and the tooth array of the waist hole is formed on the toothed member; the toothed member has a first mounting portion at one end in the length direction, and / or the toothed member has a second mounting portion at one end in the length direction, the first mounting portion and the second mounting portion being fixed to the pliers handle in the thickness direction; the main body is provided with a recessed portion, and the toothed member is embedded in the recessed portion; The tooth member has a first mounting portion at one end in the length direction, and / or the tooth member has a second mounting portion at one end in the length direction, and the first mounting portion and the second mounting portion are fixed to the pliers handle in the thickness direction of the pliers handle. The pliers handle according to claim 4 , wherein the waist hole is formed in the tooth member.

6. A toothed part, suitable for pliers with adjustable jaws, wherein one of the pliers handles is provided with a waist-shaped hole, characterized in that: The tooth part has a long side, and the long side is provided with a tooth array. The tooth part is used to be fixed to the pliers handle and form a long side of the waist-shaped hole with the tooth array; the tooth part has a first mounting portion at one end in the length direction, and / or the tooth part has a second mounting portion at one end in the length direction, and the first mounting portion and the second mounting portion are fixed to the pliers handle in the thickness direction of the pliers handle.

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