Wire crimping pliers with interchangeable jaw

Abstract

A wire crimping pliers with a replaceable jaw comprising a wire crimping pliers body and a jaw, wherein the wire crimping pliers body has an end provided with a handle and an end that is a clamping end, a recess is formed in an opening of the clamping end, at least one elastic piece is mounted at an inner end of the recess, the jaw is inserted into the recess, an inner end of the jaw abuts against the elastic piece, a rotatable spindle is arranged in the recess, one end of the spindle is provided with a rotating cap and is located outside the clamping end, a bushing is formed in the jaw, a circular hole is formed in a bottom of the bushing, a locking piece in the shape of an elliptical cylinder is arranged at a position of the spindle corresponding to the bushing,a minimum diameter of the locking piece is smaller than a diameter of the socket and a maximum diameter of the locking piece is larger than the diameter of the socket and smaller than a diameter of the circular hole.,

Description

BACKGROUND OF THE UTILITY MODEL 1. Technical field

[0001] The utility model relates to the technical field of wire crimping pliers, in particular a wire crimping pliers with interchangeable jaws. 2. Description of the state of the art

[0002] A wire crimper is a tool for crimping wires and terminals. Common telephone cable connections, network cable connections, and cable and device connections are made by crimping with a wire crimper. Since there are many different types of cables, appropriate wire crimpers must be used. For electricians, carrying too many different types of wire crimpers results in wasted labor and can lead to wire crimper loss. Therefore, using a wire crimper with interchangeable jaws is undoubtedly the optimal technical solution.

[0003] In conventional wire crimping pliers with interchangeable jaws, the jaw is located at the clamping end of the crimper housing and is clamped in place once positioned. However, after prolonged use of such wire crimping pliers, the jaw easily sticks or jams to the crimper housing and is difficult to remove. Often, a tool is required to remove the jaw, which is not only time-consuming and labor-consuming, but can also lead to damage to the jaw. BRIEF SUMMARY OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the objective of the utility model is to provide a cable crimping tool with an interchangeable jaw.

[0005] To achieve the above-mentioned objective, the utility model uses the following technical solution:

[0006] A wire crimping pliers with interchangeable jaws comprise a crimping pliers body and a jaw. The crimping pliers body has one end with a handle and one end as a clamping end. A recess is provided in the opening of the clamping end. At least one elastic element is attached to its inner end. The jaw is inserted into the recess, and its inner end rests against the elastic element. A rotatable spindle is arranged in the recess. One end of the spindle is provided with a rotating cap and is located outside the clamping end. In the jaw is a bushing with a circular hole formed in the bottom. A locking element in the shape of an elliptical cylinder is located at a position on the spindle corresponding to the bushing.The minimum diameter of the locking element is smaller than the diameter of the socket, and the maximum diameter of the locking element is larger than the diameter of the socket and smaller than the diameter of the circular hole.

[0007] Preferably, the elastic piece is C-shaped, and a flat surface is arranged at one end of the elastic piece, near the jaw.

[0008] Preferably, a limiting groove is formed in a bottom of the recess, the shape of which corresponds to that of the elastic piece, wherein the elastic piece is arranged in the limiting groove and the end of the elastic piece provided with the flat surface is arranged outside the limiting groove.

[0009] Preferably, a slot is formed in the limiting groove, and an end of the elastic piece opposite to the end provided with the flat surface is inserted into the slot.

[0010] Preferably, the elastic piece is a metallic elastic piece.

[0011] By applying the technical solution described above, the jaw is inserted directly into the recess, and by rotating the spindle, the locking piece, shaped like an elliptical cylinder, can be locked into the circular opening on the spindle, thus meeting the design requirements for jaw replacement. Furthermore, the elastic piece pushes the jaw outward, allowing a fastening force to be exerted when the jaw is locked, preventing it from loosening. After unlocking, the jaw can be ejected directly, enabling quick jaw replacement.

[0012] A wire crimping pliers with an interchangeable jaw is disclosed, comprising a wire crimping pliers body and a jaw. The wire crimping pliers body has one end with a handle and one end as a clamping end. A recess is formed in the opening of the clamping end, to the inner end of which at least one elastic element is attached. The jaw is inserted into the recess, in which a spindle is arranged. One end of the spindle is provided with a rotating cap and is located outside the clamping end. A bushing is formed in the jaw, in the bottom of which a circular hole is formed. A locking element in the shape of an elliptical cylinder is located at a position on the spindle corresponding to the bushing. BRIEF DESCRIPTION OF THE DIFFERENT VIEWS OF THE DRAWINGS Fig. 1 is a schematic structural diagram according to an embodiment of the utility model. Fig. 2 is a schematic structural diagram of a clamp end according to an embodiment of the utility model. Fig. 3 is a schematic structural diagram of a recess according to an embodiment of the utility model. Fig. 4 is a schematic structural diagram of a spindle according to an embodiment of the utility model. DETAILED DESCRIPTION OF THE UTILITY MODEL

[0013] To better illustrate the objectives, technical solutions, and advantages of the utility model, the utility model is explained in more detail below using the attached drawings and exemplary embodiments. The exemplary embodiments described here serve only to illustrate the utility model and do not constitute a limitation of the utility model.

[0014] In the description of the utility model, it should be noted that terms such as "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," and "counterclockwise" are used to indicate directional or positional relationships based on the attached drawings. They are used solely to facilitate and simplify the description of the utility model and do not imply that the mentioned devices or elements must be arranged, configured, and operated in a specific direction, and thus do not constitute a limitation of the utility model. Furthermore, the terms "first" and "second" are for descriptive purposes only and should not be interpreted as indicating a relative importance or implicitly indicating the number of the mentioned technical features.Therefore, a feature defined as "first" or "second" may explicitly or implicitly imply the inclusion of one or more of these features. In the description of the utility model, "several" refers to two or more, unless explicitly and specifically defined otherwise.

[0015] When describing utility models, it should be noted that the terms "assembly," "connection," and "joining"—unless expressly stated and defined otherwise—are to be understood in the broadest sense. For example, "joining" can refer to a fixed, detachable, or integrated connection, a mechanical or electrical connection, a directional connection, an indirect connection via an intermediate medium, or an internal connection or interaction between two elements. The specific meaning of these terms in the context of the utility model will be clear to those skilled in the art, depending on the circumstances.

[0016] How Fig. 1 to Fig.3, this embodiment is a wire crimping pliers with interchangeable jaws, consisting of a crimping pliers body 1 and a jaw 2. One end of the crimping pliers body 1 is provided with a handle 11, and the other end is a clamping end 12. A recess 13 is formed in the opening of the clamping end 12, to the inner end of which at least one elastic piece 14 is attached. The elastic piece 14 is a metallic elastic piece. The jaw 2 is inserted into the recess 13, and its inner end rests against the elastic piece 14. A rotatable spindle 15 is arranged in the recess 13, one end of which is provided with a rotating cap 16 and is located outside the clamping end 12. A bushing 21 is formed in the jaw 2, and a circular hole 22 is provided in the bottom of the bushing 21. A locking piece 17 in the shape of an elliptical cylinder is arranged at a position of the spindle 15 corresponding to the bushing 21.The minimum diameter of the locking piece 17 is smaller than the diameter of the bushing 21 and the maximum diameter of the locking piece 17 is larger than the diameter of the bushing 21 and smaller than the diameter of the circular hole 22.

[0017] In this embodiment, the jaw 2 is inserted directly into the recess 13, and by rotating the spindle 15, the locking piece 17 in the shape of an elliptical cylinder on the spindle 15 can be locked in the circular opening 22, thus meeting the design requirements for replacing the jaw 2. Furthermore, the elastic piece 15 pushes the jaw 2 outward, so that when the jaw 2 is locked, a fastening force can be exerted, preventing the jaw 2 from coming loose. After unlocking, the jaw 2 can be directly ejected, enabling quick replacement of the jaw 2.

[0018] In the concrete process, when the jaw 2 needs to be installed, the jaw 2 is selected, then the inner end of the jaw 2 is inserted along the recess 13, and a minimum diameter surface of the locking piece 17 corresponds to the socket 21 to ensure that the socket 21 and the locking piece 17 are connected smoothly.When the inner end of the jaw 2 is inserted to the innermost position, the elastic piece 14 is compressed and the locking piece 17 enters the circular hole 22 exactly; then, an external force is applied to the rotary cap 16 to drive the spindle 15 to rotate, the locking piece 17 simultaneously rotates in the circular hole 22 until a maximum diameter surface of the locking piece 17 corresponds to the bushing 21, and at this moment, the locking piece 17 will not detach from the bushing 21 and will be fixed to an inner wall of the circular hole 22 under the action of an elastic force of the elastic piece 17, so that the installation of the jaw 2 is completed.When the jaw 2 needs to be replaced with another jaw 2 (the different jaws 2 only differ in the crimping surface for crimping the wires, but are the same in other aspects), an external force is applied to the rotary cap 16 to drive the spindle 15 to rotate by 90° in general. At this moment, the smallest diameter surface of the locking piece 17 corresponds to the socket 21, the jaw 2 is ejected under the action of the elastic force of the elastic piece 14 and can be directly gripped, and the desired jaw 2 is installed according to the installation steps of the jaw 2. In this way, the entire installation is extremely simple and convenient.

[0019] Furthermore, regarding the shape of the elastic piece 14, in this embodiment, the elastic piece 14 is C-shaped, and a flat surface 141 is provided at one end of the elastic piece 14 near the jaw 2. The design of the flat surface enables better contact between the elastic piece and the inner end of the jaw 2, thus ensuring complete contact.

[0020] In order to further prevent the elastic piece 14 from detaching from the recess 13 during the deformation process, in this embodiment, a limiting groove 131 is formed in the bottom of the recess 13, the shape of which corresponds to that of the elastic piece 14. The elastic piece 14 is arranged in the limiting groove 131, and the end of the elastic piece 14 provided with the flat surface 141 is located outside the limiting groove 131. In this way, the elastic piece 14 is limited by the limiting groove 131. To ensure that the elastic piece 14 does not detach from the recess 13, a slit 132 is formed in the limiting groove 131, and an end of the elastic piece 14 opposite the end provided with the flat surface 141 is inserted into the slit 132, thus ensuring the installation stability of the elastic piece 14.

[0021] The above embodiments represent merely preferred embodiments of the utility model and do not limit the scope of the utility model patent. All equivalent structural or flow transformations made based on the description and drawings, as well as direct or indirect applications in other related technical fields, are also within the scope of the utility model patent protection.

Claims

[1] A wire crimping pliers with a replaceable jaw comprising a wire crimping pliers body and a jaw, the wire crimping pliers body having an end provided with a handle and an end which is a clamping end, a recess is formed in an opening of the clamping end, at least one elastic piece is mounted on an inner end of the recess, the jaw is inserted into the recess, an inner end of the jaw abuts against the elastic piece, a rotatable spindle is arranged in the recess, one end of the spindle is provided with a rotating cap and is located outside the clamping end, a bushing is formed in the jaw, a circular hole is formed in a bottom of the bushing, a locking piece in the shape of an elliptical cylinder is arranged at a position of the spindle corresponding to the bushing,a minimum diameter of the locking piece is smaller than a diameter of the socket and a maximum diameter of the locking piece is larger than the diameter of the socket and smaller than a diameter of the circular hole., [2] The wire crimping pliers with interchangeable jaws according to claim 1, wherein the elastic piece is C-shaped and a flat surface is arranged at one end of the elastic piece near the jaw. [3] The wire crimping pliers with interchangeable jaws according to claim 2, wherein a limiting groove having a shape corresponding to that of the elastic piece is formed in a bottom of the recess, the elastic piece is arranged in the limiting groove, and the flat-surface end of the elastic piece is arranged outside the limiting groove. [4] The wire crimping pliers with interchangeable jaws according to claim 3, wherein a slit is formed in the restricting groove and an end of the elastic piece opposite to the end provided with the flat surface is inserted into the slit. [5] The wire crimping tool with interchangeable jaws according to claim 4, wherein the elastic piece is an elastic metal piece.

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