Crimping pliers

Abstract

The utility model provides a crimping plier which comprises a fixed handle, a movable handle, a plier head and an adjusting assembly, the adjusting assembly comprises an eccentric shaft, a knob, a limiting assembly and a first reset piece, the eccentric shaft penetrates through the plier head and the movable handle, the eccentric shaft can drive the plier head to rotate relative to the fixed handle when rotating, and the knob is fixedly connected to one penetrating-out end of the eccentric shaft; the limiting assembly is installed at the other penetrating-out end of the eccentric shaft, the first reset piece is located on the rotary knob and the movable handle, the adjusting assembly is simple in structure, secondary fixing can be carried out without the help of tools, and the use efficiency of the crimping pliers is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of wire crimping tools, specifically to a wire crimping pliers. Background Technology

[0002] Crimping tools are used to crimp wires to terminals. Because there are many types and models of wires, matching crimping pliers are required, which can lead to problems such as cumbersome carrying and tool loss. Currently, torque adjustment mechanisms are commonly used to adjust the jaw size to accommodate different wire sizes. Existing torque adjustment mechanisms use screws for fixing, requiring additional tools to remove the screws before adjustment. Furthermore, after adjustment, a second fixing with additional tools is needed, making the adjustment process cumbersome. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a wire clamp that improves the convenience of adjustment.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] A wire crimping tool includes a fixed handle, a movable handle, and a jaw. The wire crimping tool further includes an adjustment assembly for adjusting the jaw size of the jaw, the adjustment assembly comprising:

[0006] An eccentric shaft passes through both the movable handle and the pliers head; when the eccentric shaft rotates, it can cause the pliers head to rotate relative to the fixed handle.

[0007] A knob is fixedly connected to the first end of the eccentric shaft;

[0008] A limiting assembly is installed at the second end of the eccentric shaft; and

[0009] A first reset element is located between the knob and the movable handle;

[0010] When the first reset member is in the first compression state, the limiting component is fixed relative to the movable handle. When the first reset member is squeezed by the knob and is in the second compression state, the limiting component is separated from the movable handle so that the pliers head can be driven to rotate when the eccentric shaft is rotated.

[0011] Furthermore, the limiting component includes:

[0012] The limiting seat is fixed to the second end;

[0013] A limiting protrusion is provided on the end face of the limiting seat or the movable handle;

[0014] The limiting seat or the movable handle is provided with a limiting hole for the limiting protrusion to be inserted, so that when the first reset member is in the first compressed state, the limiting protrusion is inserted into the limiting hole.

[0015] Furthermore, at least two limiting protrusions are provided circumferentially along the rotation axis of the eccentric shaft, and the limiting holes are provided in a one-to-one correspondence with the limiting protrusions.

[0016] Furthermore, the first reset element is a spring, with its two ends respectively abutting against the knob and the movable handle;

[0017] When the spring is in the first compressed state, there is a clearance between the knob and the movable handle.

[0018] Furthermore, the knob has anti-slip textures on its peripheral surface.

[0019] Furthermore, the pliers head has a mounting hole at one end near the movable handle, and the adjustment assembly also includes an eccentric wheel fixed in the mounting hole. The eccentric wheel has a connecting hole with a flat section, and the eccentric shaft fits through the connecting hole.

[0020] Furthermore, the crimping pliers also include a release assembly, the release assembly comprising:

[0021] The transmission part has a third end and a fourth end, the third end being rotatably connected to the fixed handle, and the fourth end being rotatably connected to the movable handle. The third end is provided with a plurality of continuous tooth grooves.

[0022] The unlocking lever has a fifth end and a sixth end. The fifth end is rotatably connected to the movable handle, and the sixth end is exposed on the outside of the movable handle. The fifth end is provided with a locking tooth for engaging with the tooth groove.

[0023] The second reset component, with one end connected to the movable handle and the other end connected to the fifth end, is used to reset the unlocking lever when the movable handle and the fixed handle are pressed to the extreme position.

[0024] Furthermore, the unlocking lever is tilted upwards in a direction away from the fixed lever.

[0025] Furthermore, a positioning rod is fixedly connected to the inner side of the movable handle, and the transmission part is provided with a positioning groove for the positioning rod to slide in. The central axis of the positioning groove coincides with the rotation axis of the transmission part on the movable handle.

[0026] Furthermore, the side of the fourth end is a circular surface, and a connecting seat is fixedly connected inside the fixing handle. A limiting groove is provided through one side of the connecting seat for the fourth end to be at least partially embedded.

[0027] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0028] In this application, the cooperation of the eccentric shaft, knob, limiting component, first reset component and pliers head allows the limiting component to be separated from the movable handle by pressing the knob, and the knob can be rotated to drive the eccentric shaft to rotate, thereby adjusting the jaw diameter to be larger or smaller without the need for additional tools, thus improving the ease of adjustment of the wire crimping pliers.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the wire clamp provided in an embodiment of the present utility model;

[0031] Figure 2 Exploded view of part of the structure of the crimping pliers provided in this embodiment of the utility model Figure 1 ;

[0032] Figure 3 A partial structural diagram of the crimping pliers provided in this embodiment of the utility model. Figure 1 ;

[0033] Figure 4 Exploded view of part of the structure of the crimping pliers provided in this embodiment of the utility model Figure 2 ;

[0034] Figure 5 Exploded view of part of the structure of the crimping pliers provided in this embodiment of the utility model Figure 3 ;

[0035] Figure 6 for Figure 4 Enlarged view of section A;

[0036] Figure 7 A partial structural diagram of the crimping pliers provided in this embodiment of the utility model. Figure 2 ;

[0037] Figure 8 A partial structural diagram of the crimping pliers provided in this embodiment of the utility model. Figure 3 .

[0038] Explanation of icon numbers:

[0039] 10. Fixed handle; 101. Connecting seat; 102. Limiting groove; 20. Movable handle; 201. Limiting hole; 30. Pliers head; 31. Adjusting body; 310. Mounting hole; 311. Receiving through hole; 3110. Slot; 32. Pliers teeth; 321. First end face; 3211. First plane; 3212. Concave surface; 3213. Convex surface; 3221. Second plane; 3222. Third plane; 3223. Fourth plane; 33. Third reset component; 34. First connecting shaft; 40. Adjusting assembly; 41. Eccentric shaft; 411. First end; 412. Second end; 42. Knob; 421. 43. Anti-slip texture; 431. Limiting component; 432. First connecting part; 433. Limiting seat; 430. Limiting protrusion; 44. First reset component; 45. Eccentric wheel; 450. Connecting hole; 46. Second connecting part; 47. Protective cap; 5. Release component; 50. Transmission part; 501. Third end; 502. Fourth end; 51. Gear groove; 510. Second connecting shaft; 60. Unlocking lever; 601. Fifth end; 602. Sixth end; 603. Third connecting shaft; 61. Locking tooth; 70. Second reset component; 701. Fourth connecting shaft; 8. Positioning rod; 801. Positioning groove; 90. Anti-slip sleeve. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0041] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. It should be noted that when an element is referred to as "fixed to" another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as "connected to" another element, it may be directly connected to the other element or there may be an intervening element. When an element is referred to as "disposed on" another element, it may be disposed on the other element or there may be an intervening element.

[0042] Reference Figures 1-8 One embodiment of this application provides a wire crimping tool, which includes a fixed handle 10, a movable handle 20, a clamp head 30, and an adjustment assembly 40. The fixed handle 10 and the movable handle 20 are arranged facing each other, one end of the clamp head 30 is rotatably connected to the fixed handle 10, and the other end of the clamp head 30 is placed inside the movable handle 20. Figure 2As shown, both the fixed handle 10 and the movable handle 20 are covered with anti-slip sleeves 90 for easy gripping by the user.

[0043] Combination Figure 4 and Figure 5 Specifically, the adjustment component 40 includes an eccentric shaft 41, a knob 42, a limiting component 43, and a first reset component 44. The eccentric shaft 41 passes through both the pliers head 30 and the movable handle 20. The eccentric shaft 41 is rotatably connected to the movable handle 20 and is engaged with the pliers head 30. When the eccentric shaft 41 rotates, it can drive the pliers head 30 to rotate relative to the fixed handle 10. Specifically, when the eccentric shaft 41 rotates in a preset direction, the jaws become larger, and when it rotates in the opposite direction, the jaws become smaller. In other words, the wire crimping pliers of this application can adapt to wires of different sizes.

[0044] The knob 42 is fixedly connected to one end 411 of the eccentric shaft 41, and the limiting component 43 is installed at the second end 412 of the eccentric shaft 41. That is, the knob 42 and the limiting component 43 are located on opposite sides of the movable handle 20. The first reset member 44 is located between the knob 42 and the movable handle 20. In this embodiment, the first reset member 44 abuts against the knob 42 and the movable handle 20. More specifically, the eccentric shaft 41 passes through the first reset member 44.

[0045] Combination Figure 4 , Figure 5 and Figure 6 For example, the first reset member 44 can be a spring or an elastic cylinder. When the spring is in the first compressed state, there is a movement gap between the knob 42 and the movable handle 20, which is the stroke to which the knob 42 can be pressed down.

[0046] When the first reset member 44 is in the first compressed state, the limiting component 43 is fixed relative to the movable handle 20. When the first reset member 44 is squeezed by the knob 42 and is in the second compressed state, the limiting component 43 separates from the movable handle 20. At this time, rotating the eccentric shaft 41 can drive the pliers head 30 to rotate.

[0047] In other words, during operation, the knob 42 can be pressed towards the movable handle 20, compressing the first reset member 44 to release the fixed relationship between the limiting component 43 and the movable handle 20. Then, according to actual needs, the knob 42 can be rotated in a preset direction to rotate the eccentric shaft 41, thereby driving the pliers head 30 to rotate and adjust the jaws to a predetermined size. After adjustment, the knob 42 can be released, and the first reset member 44 will reset and drive the limiting component 43 to restore the relative fixed relationship between the movable handle 20 and the limiting component 43. At this time, the movable handle 20 can be pressed towards the fixed handle 10, and the movable handle 20 will drive the pliers head 30 to rotate, thereby reducing the size of the jaws to complete the wire pressing.

[0048] In this application, the eccentric shaft 41, knob 42, limiting component 43, first reset component 44, and clamp head 30 work together to separate the limiting component 43 from the movable handle 20 by pressing the knob 42. This allows the eccentric shaft 41 to rotate, driving the clamp head 30 to rotate, thereby adjusting the clamp jaw diameter to accommodate different wire diameters. By designing the structure of the adjusting component 40, this application allows the clamp jaw size to be adjusted simply by pressing and rotating the knob 42, without the need for additional tools, thus improving the ease of adjustment of the wire crimping pliers.

[0049] In some embodiments, combined with Figure 3 , Figure 5 and Figure 6 The limiting component 43 includes a limiting seat 432 and a limiting protrusion 430. The limiting seat 432 is fixed to the second end 412 through a first connecting part 431. The limiting protrusion 430 is disposed on the end face of the limiting seat 432 or the movable handle 20. The limiting seat 432 or the movable handle 20 is provided with a limiting hole 201 for the limiting protrusion 430 to be inserted.

[0050] In this embodiment, the limiting protrusion 430 is integrally formed on the end face of the limiting seat 432 facing the movable handle 20. The movable handle 20 is provided with a limiting hole 201 for the limiting protrusion 430 to be inserted, so that when the first reset member 44 is in the first compressed state, the limiting protrusion 430 is inserted into the limiting hole 201, thereby achieving relative fixation between the movable handle 20 and the limiting seat 432.

[0051] In some embodiments, a limiting protrusion 430 is provided on a limiting seat 432, and a limiting hole 201 is provided on a movable handle 20. There are at least two limiting protrusions 430 and two limiting holes 201. The limiting protrusion 430 is circumferentially arranged along the rotation axis of the eccentric shaft 41. In this embodiment, two limiting protrusions 430 and two limiting holes 201 are provided, with one limiting protrusion 430 and one limiting hole 201 correspondingly arranged. The positioning of the limiting hole 201 and the limiting protrusion 430 helps to ensure strength within a small dimensional range and reduces the likelihood of cracking or opening.

[0052] Combination Figure 5 , Figure 6 In some embodiments, the pliers head 30 has a mounting hole 310 at one end adjacent to the movable handle 20. The adjusting assembly 40 also includes an eccentric wheel 45, which is fixed in the mounting hole 310 and has a connecting hole 450 with a flat section. The eccentric shaft 41 fits through the connecting hole 450. The eccentric wheel 45 carries the eccentric shaft 41, which facilitates the replacement of parts according to rotational wear. Furthermore, the eccentric wheel 45 has a simple structure and smaller size, thereby reducing costs.

[0053] Combination Figure 6In some embodiments, the knob 42 has multiple anti-slip textures 421 arranged in a ring on its side, which helps to increase friction and reduce the occurrence of slippage during rotation.

[0054] Combination Figure 5 , Figure 6 In some embodiments, the first connecting portion 431 is screwed onto the eccentric shaft 41, that is, a threaded hole can be provided at the top end of the eccentric shaft 41 to realize the screwing of the first connecting portion 431. The adjusting assembly 40 also includes a second connecting portion 46 and a protective cap 47. The second connecting portion 46 passes through the knob 42 to be screwed onto one end of the eccentric shaft 41 adjacent to the first reset member 44. The second connecting portion 46 is also screwed onto the knob 42, thereby realizing the fixed connection between the knob 42 and the eccentric shaft 41.

[0055] The protective cap 47 is installed on the end of the knob 42 away from the first reset member 44 by screwing or snapping. In this embodiment, a mounting groove is provided on the end of the knob 42 away from the first reset member 44, and the protective cap 47 is fixed in the mounting groove to achieve a snap-fit ​​connection between the two. The limiting component 43 and the knob 42 are connected by a screw connection, which facilitates disassembly and assembly. In addition, the protective cap 47 helps to improve the protection of the second connecting part 46.

[0056] Combination Figure 8 In some embodiments, the clamp head 30 includes an adjusting body 31, clamp teeth 32, and a third reset member 33. Multiple clamp teeth 32 are provided; six clamp teeth 32 are shown in the figure. The wire clamp also includes multiple first connecting shafts 34. An eccentric shaft 41 passes through the adjusting body 31. One end of the adjusting body 31 away from the eccentric shaft 41 is placed within the fixed handle 10 and has a receiving through hole 311. The inner surface of the receiving through hole 311 has multiple grooves 3110 arranged in a ring; six grooves 3110 are shown in the figure. One end of each clamp tooth 32 is located within a groove 3110. Viewed along the arrangement direction of the multiple grooves 3110, each clamp tooth 32 includes a first end face 321 and a second end face 322 oppositely disposed. The portion of the first end face 321 away from the groove 3110 has a first plane 321 inclined towards the second end face 322. 1. The second end face 322 includes a second plane 3221, a third plane 3222 and a fourth plane 3223 arranged sequentially. The third plane 3222 is set at an obtuse angle to the second plane 3221 and the fourth plane 3223, and the obtuse angle is set relative to the first plane 3211. The fourth plane 3223 is adjacent to the first plane 3211. When adjusting the size of the jaws, the fourth plane 3223 slides along the first plane 3211 of the adjacent jaw teeth 32. Each first connecting shaft 34 passes through a jaw tooth 32 along the normal direction of the receiving through hole 311 and is installed in the fixing handle 10.

[0057] For example, two opposing mounting through holes can be provided in the fixing handle 10, allowing the protruding end of the first connecting shaft 34 to be fixed within the mounting through holes for installation on the fixing handle 10, and the jaws 32 to rotate around the first connecting shaft 34. The ring-arranged jaws 32 facilitate the provision of multi-directional pressing force, thereby improving the stability of wire pressing. The construction of the jaws 32 facilitates increasing the number of jaws arranged and improves the stability of jaw adjustment.

[0058] In this embodiment, the third reset member 33 is a tension spring. One end of the third reset member 33 is fastened to the position of the adjusting body 31 near the adjusting component (40), and the other end is fastened to the upper end of the fixed handle 10 to keep the pliers 30 in the open state. In other words, when the movable handle 20 and the fixed handle 10 are in the pressed state, the third reset member 33 is in the stretched state. After releasing, the third reset member 33 drives the lower end of the adjusting body 31 to move closer to the fixed handle 10.

[0059] In actual operation, the adjustment body 31 rotates, causing the jaw teeth 32 to rotate around the first connecting shaft 34. The fourth plane 3223 slides away from the slot 3110 along the first plane 3211 of the adjacent jaw teeth 32, thus making the jaw smaller, and vice versa.

[0060] In some embodiments, when viewed along the direction from the first plane 3211 toward the slot 3110, the first end face 321 further includes a concave surface 3212, a convex surface 3213, and another concave surface 3212 and a convex surface 3213 arranged sequentially. A convex surface 3213 located at the end is placed within the slot 3110, and the first connecting shaft 34 is located on one side of another convex surface 3213. The projections of the concave surface 3212 and the convex surface 3213 are located within the second plane 3221. The structure of the jaws 32 facilitates both ensuring strength and maximizing the rotation angle of the jaws 32, thereby also expanding the adjustment range of the jaws.

[0061] In another embodiment, the jaws 30 may be hinged to the fixed handle 10, allowing the jaws 30 and the fixed handle 10 to open and close relative to each other to adjust the jaw size.

[0062] In some embodiments, refer to Figure 2 The wire clamp also includes a transmission part 50, an unlocking lever 60, and a second reset member 70. The transmission part 50 is located on the side of the clamp head 30 near the eccentric shaft 41. The transmission part 50 has a third end 501 and a fourth end 502. The third end 501 is rotatably connected to the fixed handle 10, and the fourth end 502 is rotatably connected to the movable handle 20. The third end 501 is provided with a plurality of continuous toothed grooves 51. Specifically, it is provided with three toothed grooves 51.

[0063] The unlocking lever 60 has a fifth end 601 and a sixth end 602. The fifth end 601 is rotatably connected to the movable handle 20, and the sixth end 602 is exposed on the outside of the movable handle 20. The fifth end 601 is provided with a locking tooth 61 for engaging with the tooth groove 51.

[0064] The second reset component 70 is a tension spring. One end of the tension spring is rotatably connected to the movable handle 20, and the other end of the tension spring is rotatably connected to the fifth end 601. It is used to reset the unlocking lever 60 when the movable handle 20 and the fixed handle 10 are pressed to the extreme position.

[0065] More specifically, the unlocking lever 60 is tilted upwards in a direction away from the fixing lever 10. In some other embodiments, the unlocking lever 60 may also be tilted downwards in a direction away from the fixing lever 10 to facilitate one-handed operation of the unlocking lever 60.

[0066] When the user needs to crimp the terminal, the movable handle 20 and the fixed handle 10 are pivoted closer together, and the third end 501 rotates relative to the fixed handle 10, causing the fourth end 502 to rotate clockwise around the third end 501. The locking teeth 61 engage with the tooth groove 51 and move. At this time, the jaws of the clamping head 30 gradually narrow to complete the crimping operation on the terminal. When the user finishes crimping and wants to crimp the next terminal, there are two ways to release the crimping state:

[0067] Method 1: Continue to press the movable handle 20 and the fixed handle 10 closer together, so that the locking teeth 61 disengage from the tooth groove 51, and then the elasticity of the second reset member 70 drives the unlocking lever 60 to reset, thereby opening the movable handle 20 and the fixed handle 10.

[0068] Method 2: The user moves the external sixth end 602 to disengage the locking tooth 61 from the tooth groove 51, and then the elasticity of the second reset member 70 drives the unlocking lever 60 to reset, thereby opening the movable handle 20 and the fixed handle 10.

[0069] The two control methods of this application allow the user to quickly open the movable handle 20 relative to the fixed handle 10, enabling continuous crimping operations.

[0070] It should also be emphasized that the distance between the movable handle 20 and the fixed handle 10 is very small. The existing unlocking lever 60 is usually set between the movable handle 20 and the fixed handle 10. When the pliers head 30 gets stuck, that is, when the crimping product model or specification is incorrect, causing the movable handle 20 and the fixed handle 10 to get stuck, an external tool is needed to unlock the tooth groove 51 and the locking tooth 61.

[0071] The sixth end 602 of the unlocking lever 60 of this application is exposed outside the movable lever 20, that is, the sixth end 602 is exposed in a direction away from the fixed lever 10. Compared with the unlocking lever 60 located between the movable lever 20 and the fixed lever 10, the wire clamp of this application allows the user to operate the unlocking with one hand, making the operation easy and simple.

[0072] In some embodiments, a positioning rod 8 is fixedly connected to the inner side of the movable handle 20, and the transmission part 50 is provided with a positioning groove 801 for the positioning rod 8 to slide. The central axis of the positioning groove 801 coincides with the rotation axis of the transmission part 50 on the movable handle 20.

[0073] In this embodiment, the side of the fourth end 502 is a circular surface, which makes it convenient for the user to pull the fourth end 502. The fixing handle 10 is fixedly connected to the connecting seat 101. A limiting groove 102 is provided through one side of the connecting seat 101 for the fourth end 502 to be at least partially embedded, which is used to limit the fourth end 502.

[0074] The crimping pliers also include a second connecting shaft 510, a third connecting shaft 603, and a fourth connecting shaft 701. These three shafts are mounted within the movable handle 20. The second connecting shaft 510 passes through the end of the transmission part 50 that has a toothed groove 51. The third connecting shaft 603 passes through the unlocking lever 60, which is rotatable around the third connecting shaft 603. The fourth connecting shaft 701 passes through the end of the second reset member 70 that is away from the unlocking lever 60.

[0075] For example, the movable handle 20 may have two oppositely arranged mounting through holes at each position corresponding to the second connecting shaft 510, the third connecting shaft 603, and the fourth connecting shaft 701, thereby mounting the corresponding connecting shaft to the movable handle 20. The mounting through hole for mounting the third connecting shaft 603 has a larger diameter than the diameter of the third connecting shaft 603, i.e., there is a clearance between the third connecting shaft 603 and its corresponding mounting through hole. Mounting the transmission part 50, the unlocking lever 60, and the second reset member 70 via the connecting shafts and the limiting groove 102 simplifies the device structure.

[0076] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A wire crimping pliers characterized by, The wire crimping pliers include a fixed handle (10), a movable handle (20), and a jaw (30). The pliers also include an adjustment assembly (40) for adjusting the jaw size of the jaw (30), the adjustment assembly (40) comprising: An eccentric shaft (41) passes through both the movable handle (20) and the pliers head (30). When the eccentric shaft (41) rotates, it can drive the pliers head (30) to rotate relative to the fixed handle (10). A knob (42) is fixedly connected to the first end (411) of the eccentric shaft (41); A limiting assembly (43) is mounted on the second end (412) of the eccentric shaft (41); and A first reset element (44) is located between the knob (42) and the movable handle (20); When the first reset member (44) is in the first compression state, the limiting component (43) is fixed relative to the movable handle (20). When the first reset member (44) is squeezed by the knob (42) and is in the second compression state, the limiting component (43) is separated from the movable handle (20) so that the pliers head (30) can be rotated when the eccentric shaft (41) is rotated.

2. The crimping tool of claim 1, wherein The limiting component (43) includes: The limiting seat (432) is fixed to the second end (412); A limiting protrusion (430) is provided on the end face of the limiting seat (432) or the movable handle (20); The limiting seat (432) or the movable handle (20) is provided with a limiting hole (201) for the limiting protrusion (430) to be inserted, so that when the first reset member (44) is in the first compressed state, the limiting protrusion (430) is inserted into the limiting hole (201).

3. The crimping tool of claim 2, wherein At least two limiting protrusions (430) are provided circumferentially along the rotation axis of the eccentric shaft (41), and the limiting holes (201) are provided one-to-one with the limiting protrusions (430).

4. The crimping tool of claim 2, wherein The first reset component (44) is a spring, and the two ends of the spring respectively abut against the knob (42) and the movable handle (20); When the spring is in the first compressed state, the knob (42) and the movable handle (20) have a movable gap.

5. The crimping tool of claim 2, wherein The knob (42) has anti-slip texture (421) on its peripheral side.

6. The crimping tool of claim 2, wherein The pliers head (30) has a mounting hole (310) at one end near the movable handle (20). The adjusting assembly (40) also includes an eccentric wheel (45) fixed in the mounting hole (310). The eccentric wheel (45) has a connecting hole (450) with a flat section. The eccentric shaft (41) fits through the connecting hole (450).

7. The wire crimping pliers as described in any one of claims 1-6, characterized in that, The crimping tool further includes a release assembly (5), the release assembly (5) comprising: The transmission part (50) has a third end (501) and a fourth end (502). The third end (501) is rotatably connected to the fixed handle (10), and the fourth end (502) is rotatably connected to the movable handle (20). The third end (501) is provided with a plurality of continuous toothed grooves (51). The unlocking lever (60) has a fifth end (601) and a sixth end (602). The fifth end (601) is rotatably connected to the movable handle (20), and the sixth end (602) is exposed outside the movable handle (20). The fifth end (601) is provided with a locking tooth (61) for engaging with the tooth groove (51). The second reset component (70) is connected at one end to the movable handle (20) and at the other end to the fifth end (601), and is used to reset the unlocking lever (60) when the movable handle (20) and the fixed handle (10) are pressed to the extreme position.

8. The crimping pliers of claim 7, wherein, The unlocking lever (60) is tilted upwards in a direction away from the fixing lever (10).

9. The crimping pliers of claim 7, wherein, A positioning rod (8) is fixedly connected to the inner side of the movable handle (20), and the transmission part (50) is provided with a positioning groove (801) for the positioning rod (8) to slide. The central axis of the positioning groove (801) coincides with the rotation axis of the transmission part (50) on the movable handle (20).

10. The crimping pliers of claim 7, wherein, The side of the fourth end (502) is circular. A connecting seat (101) is fixedly connected inside the fixing handle (10). A limiting groove (102) for the fourth end (502) to be at least partially embedded is provided on one side of the connecting seat (101).

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