Crimping pliers with replaceable plier head

Abstract

The utility model relates to the technical field of wiring tools, in particular to a pair of crimping pliers with replaceable plier heads, which comprises a plurality of plier heads and two linkage plates, the middle parts of the linkage plates are rotationally connected in a scissor manner through a pin rod, the lower side of each plier head is provided with a plurality of forming grooves for crimping wires, and one end of each plier head is provided with a hook-shaped clamping bulge; according to the utility model, through the arrangement of the clamping bulge, the linkage rod and the clamping cavity, different plier heads can be conveniently used, and the plier heads which are not used temporarily form the handle of the crimping plier, so that a person does not need to additionally carry an appliance for placing the plier heads when carrying the crimping plier; therefore, the carrying convenience of the crimping pliers is improved, and the length of the handle of the crimping pliers can be effectively controlled through the disassembly and connection between the pliers heads, namely, the pressure applied to a wiring terminal by a person through the crimping pliers is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring tools, in particular to a wire crimping pliers with replaceable pliers heads. Background Art

[0002] When connecting the terminal to the wire, a wire crimping pliers is needed to connect and fix it. The existing application number is: 201922352924.9, a wire crimping pliers with replaceable pliers head, including a handle, a pliers head, and a locking mechanism. The pliers head includes a fixed part and a movable wire crimping part. The fixed part is fixedly arranged at the front end of the handle, and a slide groove is provided on the fixed part. The movable wire crimping part has a slider detachably arranged in the slide groove, and the locking mechanism is used to lock and fix the slider in the slide groove.

[0003] Although the crimping pliers proposed by the above technology have a certain degree of effect of replacing the pliers head, in actual use, since the crimping pliers cannot conveniently store the unused pliers heads, an additional device needs to be set up to store the unused pliers heads, which not only makes it inconvenient to carry, but also easily causes the pliers heads to be lost. Therefore, in order to solve the above technical problems, we propose a crimping pliers with replaceable pliers heads. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a wire crimping pliers with replaceable pliers heads.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A wire crimping pliers with replaceable pliers heads comprises a plurality of pliers heads and two linkage plates, wherein the middle parts of the linkage plates are connected in a scissor-like rotation by a pin rod, the lower side of the pliers head is provided with a plurality of forming grooves for crimping wires, one end of the pliers head is provided with a hook-shaped clamping protrusion, a linkage rod is provided inside the pliers head through a top spring sliding, the end of the linkage rod away from the top spring penetrates to the outside of the clamping protrusion, a pull plate is provided on the upper side of the end of the linkage rod close to the top spring, both ends of the linkage plate and the end of the pliers head away from the clamping protrusion are provided with clamping cavities, and the shape of the clamping cavity corresponds to the clamping protrusion and the end of the linkage rod.

[0007] Preferably, a return spring is provided between the inner sides of the ends of the two linkage plates, an arc-shaped limit rod is inserted into the inner side of the return spring, and the limit rod is slidably connected to the linkage plate.

[0008] Preferably, both ends of the limiting rod are provided with spherical anti-falling protrusions, and the outer ring surface of the limiting rod is a smooth surface.

[0009] Preferably, a receiving groove is provided on the upper side of the connecting rod, and one end of the pulling plate is hinged to the receiving groove.

[0010] Preferably, a skin-friendly pad is provided on the upper side of the pliers head, and a surface of the skin-friendly pad on one side away from the pliers head is provided with anti-slip patterns.

[0011] Preferably, Velcro is provided on both sides of the pliers head, and the skin-friendly pad is connected to the pliers head via the Velcro.

[0012] Preferably, both ends of the pliers heads and both ends of the linkage plate are provided with magnetic suction sheets, and every two pliers heads form a group, and the forming grooves of each group of pliers heads are different.

[0013] The utility model provides a wire crimping pliers with replaceable pliers head, which has the following beneficial effects:

[0014] 1: In the utility model, the provision of the clamping protrusion, the connecting rod and the clamping cavity makes it easy to use different pliers heads, and also allows several temporarily unused pliers heads to form the handle of the crimping pliers together, so that when carrying the crimping pliers, people do not need to carry additional tools for placing the pliers heads, thereby improving the portability of the crimping pliers, and the length of the handle of the crimping pliers can be effectively controlled by disassembly and connection between the pliers heads, that is, effectively improving the pressure applied by people to the terminal blocks through the crimping pliers. In summary, compared with the traditional solution, this solution can conveniently connect the unused pliers heads to the crimping pliers under the premise of convenient replacement of the pliers heads, that is, avoids the need for people to set up additional tools for storing the pliers heads, and also avoids the risk of unused pliers heads being easily lost during carrying, and also conveniently adjusts the pressing force applied to the terminal blocks.

[0015] 2: The setting of the reset spring in the utility model makes it convenient for the personnel to automatically open the crimping pliers after they crimp the terminal block with the crimping pliers, so that the personnel can crimp the next terminal block; the setting of the limit rod can have a good limiting effect on the reset spring, so as to prevent the reset spring from tilting and flying when being compressed; the setting of the accommodating groove allows the pull plate to rotate, and then it is convenient to store it, so as to prevent the pull plate with protruding edges from causing discomfort to the personnel's hands when the personnel use the crimping pliers; the setting of the skin-friendly pad improves the comfort of the personnel's hands when holding the crimping pliers; the setting of the Velcro makes it easy to replace the skin-friendly pad, thereby avoiding the phenomenon that the skin-friendly pad cannot be replaced and is later contaminated, which affects the comfort of the personnel holding it. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the crimping of a crimping pliers with replaceable clamp heads proposed by the utility model;

[0017] Figure 2 A schematic diagram of opening a wire crimping pliers of a wire crimping pliers with replaceable clamp heads proposed by the utility model;

[0018] Figure 3This is a schematic diagram of the separation of the linkage plate and the clamp head of a wire crimping pliers with replaceable clamp heads proposed by the utility model;

[0019] Figure 4 This is a schematic diagram of the cooperation between the linkage plate and the clamp head of a wire crimping pliers with replaceable clamp heads proposed by the utility model;

[0020] Figure 5 A schematic diagram of a crimping pliers head with replaceable pliers head proposed by the utility model;

[0021] Figure 6 The utility model provides a schematic diagram of a clamp head of a wire crimping pliers with replaceable clamp heads and a clamping cavity on a linkage plate.

[0022] In the figure: 1. Clamp head; 2. Linkage plate; 3. Forming groove; 4. Snap-on protrusion; 5. Snap-on cavity; 6. Top spring; 7. Linkage rod; 8. Pull plate; 9. Return spring; 10. Limit rod; 11. Skin-friendly pad; 12. Velcro; 13. Magnetic sheet. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Example 1

[0024] Reference Figure 1-6 A wire crimping pliers with replaceable pliers heads comprises several pliers heads 1 and two linkage plates 2. The middle part of the linkage plates 2 is connected in a scissor-like rotation by a pin rod. The lower side of the pliers head 1 is a plurality of forming grooves 3 for crimping. One end of the pliers head 1 is provided with a hook-shaped clamping protrusion 4. A connecting rod 7 is provided inside the pliers head 1 through a top spring 6 for sliding. The end of the connecting rod 7 away from the top spring 6 penetrates to the outside of the clamping protrusion 4. A pulling plate 8 is provided on the upper side of the connecting rod 7 close to the end of the top spring 6. Both ends of the linkage plate 2 and the end of the pliers head 1 away from the clamping protrusion 4 are provided with a clamping cavity 5. The shape of the clamping cavity 5 corresponds to the clamping protrusion 4 and the end of the connecting rod 7. Example 2

[0025] Reference Figure 1-6 , when other parts are the same as those in Example 1, the difference between this embodiment and Example 1 is that:

[0026] A return spring 9 is commonly provided between the inner sides of the ends of the two linkage plates 2, and an arc-shaped limit rod 10 is inserted into the inner side of the return spring 9. The limit rod 10 is slidably connected to the linkage plate 2. The setting of the return spring 9 makes it convenient for the personnel to automatically open the crimping pliers after the personnel use the crimping pliers to crimp the terminal, so that it is convenient for the personnel to crimp the next terminal; spherical anti-falling protrusions are provided at both ends of the limit rod 10, and the outer ring surface of the limit rod 10 is a smooth surface. The setting of the limit rod 10 can have a good limiting effect on the return spring 9 to prevent the return spring 9 from tilting and collapsing when being compressed; a receiving groove is provided on the upper side of the linkage rod 7, and one end of the pull plate 8 is hinged to the receiving groove. The setting of the receiving groove allows the pull plate 8 to be rotated, which is convenient for its storage, so as to prevent the pull plate 8 with a protruding edge from causing discomfort to the personnel's hands during the use of the crimping pliers.

[0027] A skin-friendly pad 11 is provided on the upper side of the pliers head 1, and an anti-slip pattern is provided on the surface of the skin-friendly pad 11 away from the pliers head 1. The setting of the skin-friendly pad 11 improves the comfort of the person's hand when holding the crimping pliers. Velcro 12 is provided on both sides of the pliers head 1, and the skin-friendly pad 11 is connected to the pliers head 1 through the Velcro 12. The setting of the Velcro 12 facilitates the replacement of the skin-friendly pad 11, thereby facilitating the prevention of the phenomenon that the skin-friendly pad 11 cannot be replaced and is contaminated later, which affects the comfort of the person holding the pliers head; magnetic suction sheets 13 are provided at both ends of the pliers head 1 and both ends of the linkage plate 2, and every two pliers heads 1 form a group, and the molding groove 3 of each group of pliers heads 1 is different. The setting of the magnetic suction sheet 13 makes the connection between the pliers heads 1 and the connection between the pliers heads 1 and the linkage plate 2 more firmly.

[0028] When the clamp head 1 and the end of the linkage plate 2 are both provided with matching clamping chamber 5 and connecting protrusion 4, the personnel connect the clamp head 1 with the clamping chamber 5 of the linkage plate 5 through the clamping protrusion 4, and cancel the force applied to the pull plate 8 after the clamping protrusion 4 and the clamping chamber 5 are fully combined, that is, the end of the linkage rod 7 is pushed to move toward the clamping chamber 5 under the action of the top spring 6, until the end of the linkage rod 7 is inserted into the adjacent clamping chamber 5. At this time, under the mutual cooperation of the linkage rod 7, the clamp head 1 and the linkage plate 2 are fixedly connected, that is, at this time, a plurality of clamp heads 1 and the linkage plate 2 form a complete crimping pliers, wherein the two clamp heads 1 located at one end of the linkage plate 2 and mutually and abutting each other are the crimping working ends of the crimping pliers, and the remaining plurality of groups of non-fitting clamp heads 1 together form the handle of the crimping pliers, thereby the personnel can squeeze the pressing working end by holding the handle, thereby completing the combination between the wire and the terminal.

[0029] Furthermore, in the above process, by setting the clamping protrusion 4, the connecting rod 7 and the clamping cavity 5, the clamp heads 1 and the clamp heads 1 and the linkage plate 2 can be conveniently and quickly connected and disassembled, so that it is convenient for personnel to replace the clamp heads 1 of the crimping pliers so as to use different clamp heads 1. At the same time, under the action of the clamping protrusion 4, the connecting rod 7 and the clamping cavity 5, several temporarily unused clamp heads 1 together form the handle of the crimping pliers, that is, when carrying the crimping pliers, there is no need for personnel to carry additional tools for placing the clamp heads 1, thereby improving the convenience of carrying the crimping pliers. The portability of the crimping pliers is improved, and the length of the crimping pliers handle can be effectively controlled by disassembling and connecting the pliers heads 1, which effectively increases the pressure applied by personnel to the terminal blocks through the crimping pliers. In summary, compared with the traditional solution, the present solution can conveniently connect the unused pliers heads 1 to the crimping pliers on the premise of convenient replacement of the pliers heads 1, thereby avoiding the need for personnel to set up additional equipment for storing the pliers heads 1 and the risk of the unused pliers heads 1 being easily lost during carrying, and can also conveniently adjust the pressing force applied to the terminal blocks.

[0030] It should be further explained that the setting of the reset spring 9 makes it convenient for the personnel to automatically open the crimping pliers after they crimp the terminal with the crimping pliers, so that it is convenient for the personnel to crimp the next terminal; the setting of the limit rod 10 can have a good limiting effect on the reset spring 9, so as to prevent the reset spring 9 from tilting and flying when being compressed; the setting of the accommodating groove allows the pull plate 8 to be rotated, and then it is convenient to store it, so as to prevent the pull plate 8 from causing discomfort to the personnel's hands when the personnel use the crimping pliers. The setting of the skin-friendly pad 11 improves the comfort of the personnel's hands when holding the crimping pliers. The setting of the Velcro 12 facilitates the replacement of the skin-friendly pad 11, thereby avoiding the phenomenon that the skin-friendly pad 11 cannot be replaced and is contaminated later, which affects the comfort of the personnel holding it.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wire crimping pliers with replaceable pliers heads, comprising a plurality of pliers heads (1) and two linkage plates (2), characterized in that: The middle part of the linkage plate (2) is connected to the clamp head (1) by a pin rod and is rotatably connected in a scissor-like manner. The lower side of the clamp head (1) is a plurality of molding grooves (3) for crimping. One end of the clamp head (1) is provided with a hook-shaped clamping protrusion (4). A linkage rod (7) is slidably provided inside the clamp head (1) through a top spring (6). The end of the linkage rod (7) away from the top spring (6) penetrates to the outside of the clamping protrusion (4). A pull plate (8) is provided on the upper side of the end of the linkage rod (7) close to the top spring (6). Both ends of the linkage plate (2) and the end of the clamp head (1) away from the clamping protrusion (4) are provided with a clamping cavity (5). The shape of the clamping cavity (5) corresponds to the clamping protrusion (4) and the end of the linkage rod (7).

2. A wire crimping pliers with replaceable pliers head according to claim 1, characterized in that: A return spring (9) is provided between the inner sides of the ends of the two linkage plates (2), an arc-shaped limit rod (10) is inserted into the inner side of the return spring (9), and the limit rod (10) is slidably connected to the linkage plate (2).

3. A wire crimping pliers with replaceable pliers head according to claim 2, characterized in that: Both ends of the limiting rod (10) are provided with spherical anti-falling protrusions, and the outer ring surface of the limiting rod (10) is a smooth surface.

4. The wire crimping pliers with replaceable pliers head according to claim 1, characterized in that: The upper side of the linkage rod (7) is provided with a receiving groove, and one end of the pull plate (8) is hingedly connected to the receiving groove.

5. The wire crimping pliers with replaceable pliers head according to claim 1, characterized in that: A skin-friendly pad (11) is provided on the upper side of the pliers head (1), and a surface of the skin-friendly pad (11) on a side away from the pliers head (1) is provided with anti-slip patterns.

6. A wire crimping pliers with replaceable pliers head according to claim 5, characterized in that: Velcro (12) is provided on both sides of the pliers head (1), and the skin-friendly pad (11) is connected to the pliers head (1) via the Velcro (12).

7. The wire crimping pliers with replaceable pliers head according to claim 1, characterized in that: Both ends of the pliers head (1) and both ends of the linkage plate (2) are provided with magnetic attraction sheets (13), and every two pliers heads (1) form a group, and the forming grooves (3) of each group of pliers heads (1) are different.

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