Crimping pliers capable of preventing jaw from falling off

Abstract

The utility model provides a crimping plier capable of preventing a jaw from falling off, which belongs to the field of crimping plier, and comprises a plier body and a jaw which are detachably connected, the crimping plier also comprises a limiting assembly, the limiting assembly comprises a limiting block and a positioning block, one end of the limiting block is rotatably arranged on the jaw, the other end of the limiting block is provided with a first clamping groove, and the positioning block is provided with a second clamping groove. One end of the positioning block is connected with the clamp body, the other end of the positioning block is in a locking state when clamped in the first clamping groove, and the other end of the positioning block is in an unlocking state when staggered with the first clamping groove. According to the utility model, the limiting assembly is arranged, so that the jaw and the plier body are convenient to mount and dismount, the jaw and the plier body are prevented from falling off in the use process of the crimping plier, and the use safety and stability of the crimping plier are improved; the handle sheath is detachably connected with the handle, and the supporting block is arranged to be clamped with the second connecting piece, so that the handle sheath can be flexibly replaced, and the handle sheath can be prevented from falling off from the handle.

Description

Technical Field

[0001] The utility model relates to the technical field of wire crimping pliers, in particular to a wire crimping pliers capable of preventing jaws from falling off. Background Art

[0002] Compared with manual twisting and simple clamping, the crimping module in the crimping pliers has the advantages of instantly applying balanced pressure, accurately shaping the cable connection form, and greatly reducing the operation time. The crimping pliers can ensure that the cable connection is tight and the contact resistance meets the standard, avoiding electrical accidents such as heating and sparking caused by poor connection; and the insulation protection is in place, the insulation material of the pliers handle and some key parts has strong anti-puncture ability, and the protection level is in line with the complex working environment, ensuring the personal safety of operators and meeting the requirements of electrical safety regulations. Therefore, it is widely used in communication engineering, electronic manufacturing and other fields. The pliers head and handle of traditional crimping pliers are integrated. During use, due to frequent crimping operations, the pliers head is easily worn, which makes the handle unable to continue to be used, thereby increasing the replacement cost of the crimping pliers. In order to save the cost of replacing the crimping pliers, transportation, and adapt to more different types of cables and connectors, some existing crimping pliers set the pliers head and handle as split type, and the replacement of the crimping pliers head can be achieved by disassembly.

[0003] The jaws and handles of detachable crimping pliers are usually connected by snapping or plugging. The jaws may fall off during use, or the jaws may shake due to the connection gap, which poses a safety hazard and reduces the quality of the cable connector. In order to prevent the above problems, existing detachable crimping pliers are provided with a fixing device between the pliers body and the jaws. For example, patent CN221364484U discloses a crimping pliers with detachable jaws and pliers body. The patent is provided with a fixing assembly. When the jaws and pliers body are plug-in connected, it is necessary to pull the sliding column by hand first. After the positioning stud is fully embedded in the positioning groove to complete the initial fixation, the sliding column is released to be embedded in another positioning groove. Only then is the installation of the jaws and pliers body completed. The fixing method of the jaws and pliers body in the patent leads to cumbersome operation and low assembly efficiency when installing and removing the jaws and pliers body. Therefore, it is of great practical significance to design a crimping pliers that can prevent the jaws from falling off and facilitate installation and disassembly. Utility Model Content

[0004] The utility model aims to overcome the shortcomings and deficiencies of the prior art and to provide a wire crimping pliers which can prevent the jaws from falling off.

[0005] The technical solution adopted by the utility model is as follows: a wire crimping pliers for preventing the jaws from falling off, comprising a pliers body and a jaw, wherein the pliers body and the jaws are detachably connected, and further comprising a limit assembly, wherein the limit assembly comprises a limit block and a positioning block, wherein one end of the limit block is rotatably arranged on the jaws, and the other end is provided with a first clamping groove, one end of the positioning block is connected to the pliers body, and when the other end of the positioning block is clamped in the first clamping groove, it is in a locked state, and when the other end of the positioning block is misaligned with the first clamping groove, it is in an unlocked state.

[0006] The wire crimping pliers for preventing the jaws from falling off further include a first connecting piece, the first connecting piece includes a first connecting portion and a second connecting portion, a second clamping groove is provided on the jaws, the first connecting portion is rotatably provided in the second clamping groove, the second connecting portion is connected to the limit block and the two rotate synchronously.

[0007] The limit block is provided with a first groove, and clamping blocks are symmetrically provided on both sides of the end of the second connecting part. The thickness of the clamping block gradually decreases along the direction away from the first connecting part. A clamping slot adapted to the clamping block is provided in the first groove, and the second connecting part is inserted into the first groove so that the clamping block is clamped in the clamping slot.

[0008] The wire crimping pliers for preventing the jaws from falling off further include a first connecting member, one end of which is fixedly connected to the jaws, and the limit block is rotatably arranged on the other end of the first connecting member.

[0009] The first clamping groove includes an abutting portion and a first limiting portion. The first limiting portion is formed by extending the abutting portion inwardly. The first limiting portion is provided with a guide surface at one end away from the abutting portion.

[0010] The pliers body includes two pliers blades arranged at intervals, and the positioning block includes a clamping portion, a third connecting portion, a second limiting portion and a fourth connecting portion which are arranged in sequence. The clamping portion forms the locking state when it is clamped in the first clamping groove. The third connecting portion and the fourth connecting portion are respectively connected to the two pliers blades, and the second limiting portion abuts between the two pliers blades. The outer diameter of the second limiting portion is greater than the outer diameter of the third connecting portion, and greater than the outer diameter of the fourth connecting portion.

[0011] One end of the positioning block is connected to the outer side wall of the clamp body close to the limiting block, and the locking state is formed when the other end of the positioning block is clamped in the first clamping groove.

[0012] The wire crimping pliers for preventing the jaws from falling off further include a handle sheath and a handle, wherein the handle is arranged on an end of the pliers body away from the jaws, the handle is provided with a first accommodating groove, a mounting groove is opened on one side of the handle sheath, support blocks are provided at both ends of the mounting groove, the support block is provided with a third clamping groove, a second connecting piece is provided on the handle, the support block extends into the first accommodating groove, so that the second connecting piece is clamped in the third clamping groove.

[0013] A second groove is arranged on the handle sleeve along the axial direction of the third clamping groove, and the second connecting member passes through the handle and abuts against the second groove.

[0014] The handle comprises two handle bodies which are spaced apart from each other, the first receiving groove is located between the two handle bodies, and the support block is respectively in contact with the two handle bodies.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The utility model is provided with a limit assembly, which not only facilitates the installation and disassembly of the jaws and the pliers body, but also prevents the jaws and the pliers body from falling off during use, thereby improving the safety and stability of the use of the crimping pliers;

[0017] 2. The handle cover of the utility model is detachably connected to the handle, and the handle cover can be flexibly replaced;

[0018] 3. The utility model is provided with a support block that is clamped with the second connecting piece, which can prevent the handle sheath from falling off the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0020] Figure 1 It is a schematic diagram of the utility model;

[0021] Figure 2 A schematic diagram of the explosion of the utility model;

[0022] Figure 3 It is a schematic diagram of the limit block of the utility model;

[0023] Figure 4 It is a cross-sectional view of the limit block of the utility model;

[0024] Figure 5 is a schematic diagram of a first connecting member of the utility model;

[0025] Figure 6 It is a schematic diagram of the handle sheath of the utility model;

[0026] Figure 7 Another schematic diagram of the present invention;

[0027] Figure 8 It is a schematic diagram of the positioning block of the utility model;

[0028] Fig. 9 is a schematic diagram of the second jaw of the utility model;

[0029] Fig.10 It is a schematic diagram of the first jaw of the utility model. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0031] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0032] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0033] Embodiment 1:

[0034] like Figures 1 to 10 As shown, it is an embodiment provided by the utility model:

[0035] When the limit block 31 is rotated so that the other end of the positioning block 32 is just engaged with the first engaging groove 311, the jaw 2 is fixed by the limit block 31 and cannot fall off the jaw body 1, that is, the jaw 2 is in a locked state. At the same time, the setting of the limit block 3 also increases the stability of the jaw 2 during the working process, and prevents the jaw 2 from shaking when the crimping pliers is used; when the limit block 31 is rotated so that the other end of the positioning block 32 is misaligned with the first engaging groove 311, the locked state of the jaw 2 is released, that is, the jaw 2 is in an unlocked state, and the jaw 2 can be removed from the jaw body 1.

[0036] The first clamping groove 311 includes an abutting portion 3111 and a first limiting portion 3112. The first limiting portion 3112 is formed by the abutting portion 3111 extending inwardly. The first limiting portion 3112 is provided to prevent the limiting block 31 from accidentally rotating during the use of the crimping pliers, forming an unlocked state, and causing the jaws 2 to accidentally slip. The first limiting portion 3112 is provided with a guide surface 31121 at one end away from the abutting portion 3111. The guide surface can be an inclined surface or an arc surface, which has a guiding function.

[0037] There are two ways to rotatably set one end of the limit block 31 on the jaw 2. One is to set a first connecting member 4, one end of the first connecting member 4 is rotatably connected to the jaw 2, and the other end is connected to the limit block 31, and the two rotate synchronously. Specifically, the first connecting member 4 includes a first connecting portion 41 and a second connecting portion 42, and the jaw 2 is provided with a second clamping groove 23. The first connecting portion 41 is rotatably set in the second clamping groove 23, and the second connecting portion 42 is connected to the limit block 31, and the two rotate synchronously. In this embodiment, the second connecting portion 42 and the limit block 31 are connected in a clamping manner, that is: A first groove 312 is provided on the limit block 31, and blocks 421 are symmetrically provided on both sides of the end of the second connecting part 42, and the thickness of the block 421 gradually decreases along the direction away from the first connecting part 41, and a groove 3121 adapted to the block 421 is provided in the first groove 312, and the second connecting part 42 is inserted into the first groove 312 so that the block 421 is engaged with the groove 3121; secondly, a first connecting member 4 is also provided, but the difference from the first method is that one end of the first connecting member 4 is fixedly connected to the jaw 2, and the limit block 31 is rotatably provided at the other end of the first connecting member 4.

[0038] There are also two ways to connect the positioning block 32 to the pliers body 1. First, the positioning block 32 passes through the pliers body 1 and is connected thereto. Specifically, the pliers body 1 includes two pliers blades arranged at intervals. The positioning block 32 includes a clamping portion 321, a third connecting portion 322, a second limiting portion 323 and a fourth connecting portion 324 arranged in sequence. The clamping portion 321 forms the locking state when it is clamped in the first clamping groove 311. The third connecting portion 322 and the fourth connecting portion 324 are respectively connected to the two pliers blades. The second limiting portion 323 abuts between the two pliers blades. The outer diameter of the second limiting portion 323 is larger than the outer diameter of the third connecting portion 322 and larger than the outer diameter of the fourth connecting portion 324. Second, the positioning block 32 is connected to the outer wall of the pliers body 1. Specifically, one end of the positioning block 32 is connected to the outer wall of the pliers body 1 close to the limiting block 31, and the other end of the positioning block 32 forms the locking state when it is clamped in the first clamping groove 311.

[0039] In order to facilitate operation and improve the comfort of use, the crimping pliers are also provided with a handle sheath 5 and a handle 11. The handle 11 is arranged on the end of the pliers body 1 away from the jaws 2. The handle 11 is provided with a first receiving groove 131. A mounting groove 53 is provided on one side of the handle sheath 5. Support blocks 52 are provided at both ends of the mounting groove 53. The support block 52 is provided with a third clamping groove 521. A second connecting member 6 is provided on the handle 11. The support block 52 extends into the first receiving groove 131, so that the second connecting member 6 is clamped in the third clamping groove 521, which can prevent the handle sheath 5 from falling off the handle. In addition, a second groove 51 is provided on the handle sheath 5 along the axial direction of the third clamping groove 521. The second connecting member 6 passes through the handle 11 and abuts against the second groove 51, which further improves the reliability of the connection between the handle sheath 5 and the handle 11. In this embodiment, the handle 11 includes two handle bodies that are spaced apart from each other, the first receiving groove 131 is located between the two handle bodies, and the support block 52 abuts against the two handle bodies respectively.

[0040] The pliers body 1 is provided with a second accommodating groove 14 , which is located between the two pliers blades, saving material usage and manufacturing costs, and one end of the jaw 2 is arranged in the second accommodating groove 14 , and the pliers body 1 has a protective and supporting effect on both sides of the jaw 2 .

[0041] The jaws 2 include a first jaw 21 and a second jaw 22. The first jaw 21 is provided with a wire pressing groove 211, and the second jaw 22 is provided with a wire pressing protrusion 221. The wire pressing groove 211 and the wire pressing protrusion 221 are interlocked. The pliers body 1 specifically includes a first pliers body 101 and a second pliers body 102. The first pliers body 101 and the second pliers body 102 are hinged, and the two rotate relative to each other to drive the first jaw 21 and the second jaw 22 to open and close.

[0042] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A wire crimping pliers for preventing jaws from falling off, comprising a pliers body (1) and a jaw (2), wherein the pliers body (1) and the jaw (2) are detachably connected, and characterized in that: The invention also comprises a limit assembly (3), wherein the limit assembly (3) comprises a limit block (31) and a positioning block (32), wherein one end of the limit block (31) is rotatably disposed on the jaw (2), and the other end is provided with a first clamping groove (311), one end of the positioning block (32) is connected to the jaw body (1), and when the other end of the positioning block (32) is clamped in the first clamping groove (311), it is in a locked state, and when the other end of the positioning block (32) is misaligned with the first clamping groove (311), it is in an unlocked state.

2. A wire crimping pliers for preventing jaws from falling off according to claim 1, characterized in that: The jaws (2) further comprise a first connecting member (4), the first connecting member (4) comprising a first connecting portion (41) and a second connecting portion (42), the jaws (2) being provided with a second clamping groove (23), the first connecting portion (41) being rotatably disposed in the second clamping groove (23), the second connecting portion (42) being connected to the limit block (31), and the two being rotated synchronously.

3. A wire crimping pliers for preventing jaws from falling off according to claim 2, characterized in that: The limiting block (31) is provided with a first groove (312); clamping blocks (421) are symmetrically provided on both sides of the end of the second connecting portion (42); the thickness of the clamping block (421) gradually decreases in a direction away from the first connecting portion (41); a clamping slot (3121) adapted to the clamping block (421) is provided in the first groove (312); the second connecting portion (42) is inserted into the first groove (312), so that the clamping block (421) is clamped in the clamping slot (3121).

4. A wire crimping pliers for preventing jaws from falling off according to claim 1, characterized in that: It also comprises a first connecting member (4), one end of which is fixedly connected to the jaw (2), and the limit block (31) is rotatably arranged on the other end of the first connecting member (4).

5. The wire crimping pliers for preventing jaws from falling off according to claim 1, characterized in that: The first clamping groove (311) comprises an abutting portion (3111) and a first limiting portion (3112); the first limiting portion (3112) is formed by extending the abutting portion (3111) inwardly; and a guide surface (31121) is provided at one end of the first limiting portion (3112) away from the abutting portion (3111).

6. The wire crimping pliers for preventing jaws from falling off according to claim 1, characterized in that: The pliers body (1) comprises two pliers blades arranged at intervals, the positioning block (32) comprises a clamping portion (321), a third connecting portion (322), a second limiting portion (323) and a fourth connecting portion (324) arranged in sequence, the clamping portion (321) forms the locking state when clamped in the first clamping groove (311), the third connecting portion (322) and the fourth connecting portion (324) are respectively connected to the two pliers blades, the second limiting portion (323) abuts between the two pliers blades, and the outer diameter of the second limiting portion (323) is greater than the outer diameter of the third connecting portion (322), and greater than the outer diameter of the fourth connecting portion (324).

7. The wire crimping pliers for preventing jaws from falling off according to claim 1, characterized in that: One end of the positioning block (32) is connected to the outer side wall of the clamp body (1) close to the limit block (31), and the other end thereof is engaged with the first engaging groove (311) to form the locked state.

8. The wire crimping pliers for preventing jaws from falling off according to claim 1, characterized in that: The invention also comprises a handle sheath (5) and a handle (11), wherein the handle (11) is arranged on an end of the pliers body (1) away from the jaws (2), the handle (11) is provided with a first receiving groove (131), a mounting groove (53) is provided on one side of the handle sheath (5), support blocks (52) are provided at both ends of the mounting groove (53), the support block (52) is provided with a third clamping groove (521), and a second connecting member (6) is provided on the handle (11), the support block (52) extends into the first receiving groove (131), so that the second connecting member (6) is clamped in the third clamping groove (521).

9. The wire crimping pliers for preventing jaws from falling off according to claim 8, characterized in that: A second groove (51) is provided on the handle sheath (5) along the axial direction of the third clamping groove (521), and the second connecting member (6) passes through the handle (11) and abuts against the second groove (51).

10. The wire crimping pliers for preventing jaws from falling off according to claim 9, characterized in that: The handle (11) comprises two handle bodies arranged at an interval, the first accommodating groove (131) is located between the two handle bodies, and the support block (52) abuts against the two handle bodies respectively.

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