CN212947349U

CN212947349U - Cutting pliers

Info

Publication number: CN212947349U
Application number: CN202021848714.5U
Authority: CN
Inventors: 沈跃娟
Original assignee: Zhuji Itop Hardware Tools Co Ltd
Current assignee: Zhuji Itop Hardware Tools Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-04-13
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a pair of cutting pliers, belonging to the technical field of cutting pliers, comprising a first pliers handle, wherein the end part of the first pliers handle is connected with a first tool bit; the second clamp handle is hinged with the first clamp handle through a first pin shaft, and the end part of the second clamp handle is connected with a second tool bit; the first pin shaft is sleeved with a torsion spring, and the torsion spring is used for driving the first clamp handle and the second clamp handle to reset. Need artificial separation handle in order to realize the purpose of many times shearing when shearing the article among the prior art, operate very hard technical problem, the utility model provides a cut pincers, the elastic force of its accessible torsional spring orders about first pincers handle and second pincers handle and resets, and it is more laborsaving to operate to get up.

Description

Cutting pliers

Technical Field

The utility model relates to a cut pincers technical field, concretely relates to cut pincers.

Background

The cutting pliers are widely applied to industries such as hardware and building construction and used for cutting objects such as iron wires and reinforcing steel bars, the traditional cutting pliers mainly comprise a pair of tool bits and a pair of handles, the tool bits and the handles are hinged with each other through connecting pin shafts, the connecting plates and the connecting plate pin shafts movably connect the two tool bits together, and the two handles are also hinged with each other through handle pins; the working principle is as follows: when the object needs to be cut, the two handles are opened, the two tool bits are also opened, the object is placed between the cutting edges of the two tool bits, then the handles are closed forcibly, and the two tool bits are also closed until the object is cut. The cutting nippers of the above structure have the disadvantages that: the operator needs to manually separate the handle to cut the object for multiple times each time, and the operation is very laborious.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

Need artificial separation handle in order to realize the purpose of many times shearing when shearing the article among the prior art, operate very hard technical problem, the utility model provides a cut pincers, the elastic force of its accessible torsional spring orders about first pincers handle and second pincers handle and resets, and it is more laborsaving to operate to get up.

2. Technical scheme

In order to solve the above problem, the utility model provides a technical scheme does:

a pair of cutting pliers comprises a first pliers handle, wherein the end part of the first pliers handle is connected with a first tool bit; the second clamp handle is hinged with the first clamp handle through a first pin shaft, and the end part of the second clamp handle is connected with a second tool bit; the first pin shaft is sleeved with a torsion spring, and the torsion spring is used for driving the first clamp handle and the second clamp handle to reset.

Optionally, the first forceps handle has a first cavity therein, and the second forceps handle has a second cavity therein; the torsional spring includes first torque arm and second torque arm, first torque arm is located first cavity, the second torque arm is located the second cavity.

Optionally, the tool further comprises an adjustment assembly for adjusting the minimum separation of the first and second cutting heads.

Optionally, the adjusting assembly includes an adjusting block and an adjusting column, the adjusting block is rotatably mounted on the first forceps handle, the adjusting column is fixedly connected to the second forceps handle and can abut against the adjusting block, and a plurality of adjusting protrusions with different radial lengths are arranged on the adjusting block along the circumferential direction of the adjusting block.

Optionally, an end of the second torque arm is fixedly connected to the adjusting column.

Optionally, the pliers further comprise a limiting device, and the limiting device is used for limiting the relative motion of the first pliers handle and the second pliers handle.

Optionally, the lower end of the first tool bit is hinged to the first clamp handle through a second pin shaft, the lower end of the second tool bit is hinged to the second clamp handle through a third pin shaft, the middle portions of the first tool bit and the second tool bit are connected through at least one connecting piece, the first tool bit and the second tool bit are hinged to the connecting pieces through fourth pin shafts respectively, the end portions of the second pin shaft and the third pin shaft are connected with nuts respectively, the limiting device comprises a limiting piece and a limiting groove, one end of the limiting piece is rotatably connected to the second pin shaft or the third pin shaft, and the limiting groove is formed in the other end of the limiting piece and is matched with the nuts in a rotation stopping mode.

Optionally, an operation portion is arranged on the limiting piece, and the operation portion protrudes out of the surface of the limiting piece.

Optionally, the cutting edge of the first or second cutting head is cylindrical.

Optionally, the first forceps handle and the second forceps handle are both provided with an anti-slip structure.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) this cut pincers and order about first pincers handle and second pincers handle at the elastic force of shearing back accessible torsional spring to reset to make first tool bit and second tool bit phase separation, prevent that first tool bit and second tool bit card from needing artifical first pincers handle and second pincers handle to break off with fingers and thumb in cutting opening department.

(2) Through the design of torsional spring for this cutting nippers is more laborsaving when using, only need can hard when cuting, does not have unnecessary operating procedure, and the operator of being convenient for one-hand uses.

(3) Because the torsion spring is sleeved on the first pin shaft, the force arm between the first clamp handle and the torsion spring is longer, and an operator can overcome the elastic acting force of the torsion spring more laborsavingly to drive the first clamp handle and the second clamp handle to be close to each other when shearing.

(4) Compare banding spring easy bending when compressed, the stability of torsional spring when using is higher, and long-time use can also guarantee better effect that resets, and the torsional spring compares banding spring, can overlap and locate first round pin epaxially, and the mounting means is more convenient, and the stability after the installation improves greatly under the positioning action of first round pin axle.

Drawings

Fig. 1 is a schematic structural view of a pair of cutting pliers according to an embodiment of the present invention;

fig. 2 is a rear view schematically illustrating a pair of cutting pliers according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a pair of cutting pliers according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a limiting device of cutting nippers according to an embodiment of the present invention.

1. A first plier handle; 11. a first cutter head; 12. a first cavity; 13. a nut; 2. a second forceps handle; 21. a second cutter head; 22. a second cavity; 3. a first pin shaft; 4. a torsion spring; 41. a first torque arm; 42. a second torque arm; 5. an adjustment assembly; 51. an adjusting block; 511. an adjusting projection; 52. an adjustment column; 6. a limiting device; 61. a limiting sheet; 611. a limiting groove; 62. a limiting groove; 7. a second pin shaft; 8. a third pin shaft; 9. connecting sheets; 10. and a fourth pin shaft.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings 1-4 and the accompanying examples.

With reference to fig. 1-4, the cutting nippers of the present embodiment include a first nipper handle 1, the end of which is connected with a first cutter head 11; the second clamp handle 2 is hinged with the first clamp handle 1 through a first pin shaft 3, and the end part of the second clamp handle is connected with a second tool bit 21; the first pin shaft 3 is sleeved with a torsion spring 4, and the torsion spring 4 is used for driving the first clamp handle 1 and the second clamp handle 2 to reset.

After the cutting pliers are cut, the first plier handle 1 and the second plier handle 2 can be driven to reset through the elastic acting force of the torsion spring 4, so that the first cutter head 11 is separated from the second cutter head 21, the first cutter head 11 and the second cutter head 21 are prevented from being clamped at a cutting opening, the first plier handle 1 and the second plier handle 2 are required to be manually separated, the cutting pliers are more labor-saving in use through the design of the torsion spring 4, only force is required to be applied during cutting, no redundant operation steps are required, and the cutting pliers can be conveniently used by one hand of an operator; because the torsion spring 4 is sleeved on the first pin shaft 3, the force arms between the first clamp handle 1 and the second clamp handle 2 and the torsion spring 4 are longer, and an operator can overcome the elastic acting force of the torsion spring 4 more laborsavingly to drive the first clamp handle 1 and the second clamp handle 2 to be close to each other during shearing; compare banding spring easy bending when compressed, the stability of torsional spring when using is higher, and long-time use can also guarantee better effect that resets, and the torsional spring compares banding spring, can overlap and locate first round pin axle 3 on, the mounting means is more convenient, and the stability after the installation improves greatly under the positioning action of first round pin axle 3.

As an alternative of the present invention, the first forceps handle 1 has a first cavity 12 therein, the first cavity 12 opens toward the second forceps handle 2, the second forceps handle 2 has a second cavity 22 therein, and the second cavity 22 opens toward the first forceps handle 1; the torsion spring 4 comprises a first torsion arm 41 and a second torsion arm 42, the first torsion arm 41 is located in the first cavity 12, and the second torsion arm 42 is located in the second cavity 22; in practical use, because the first torsion arm 41 is located in the first cavity 12, and the second torsion arm 42 is located in the second cavity 22, the inner walls of the first cavity 12 and the second cavity 22 can respectively play a good limiting role for the first torsion arm 41 and the second torsion arm 42, so that the elastic acting force generated by the first torsion arm 41 and the second torsion arm 42 can be stably used for driving the first plier handle 1 and the second plier handle 2 to be separated, meanwhile, the hidden installation of the torsion spring 4 is realized, and the overall aesthetic degree of the cutting pliers is improved.

As an alternative of the present invention, the cutting tool further comprises an adjusting component 5, wherein the adjusting component 5 is used for adjusting the minimum distance between the first tool bit 11 and the second tool bit 21; the adjustment of the adjustment assembly 5 to adjust the minimum distance between the first cutting head 11 and the second cutting head 21 allows the first cutting head 11 and the second cutting head 21 to be used for cutting objects with different sizes, and a certain margin can be optionally left after cutting.

As an alternative of the present invention, the adjusting assembly 5 includes an adjusting block 51 and an adjusting post 52, the adjusting block 51 is rotatably mounted on the first forceps handle 1, the adjusting post 52 is fixedly connected to the second forceps handle 2 and can abut against the adjusting block 51, a plurality of adjusting protrusions 511 with different radial lengths are arranged on the adjusting block 51 along the circumferential direction thereof, the adjusting post 52 and the adjusting block 51 are arranged in bilateral symmetry, and when the first forceps handle 1 moves close to the second forceps handle 2, the end of the adjusting post 52 moves towards the adjusting block 51 until abutting against each other; when the end of the adjusting column 52 is abutted against the adjusting protrusions 511 with different radial lengths, the minimum distance between the first forceps handle 1 and the second forceps handle 2 is different, so that the minimum distance between the first cutter head 11 and the second cutter head 21 is different, and the purpose of adjusting the shearing distance is achieved.

As an alternative of the present invention, the end of the second torque arm 42 is fixedly connected to the adjusting column 52; the aim of this design is to reduce the angle between the first torsion arm 41 and the second torsion arm 42, so that the movement path of the first torsion arm 41 and the second torsion arm 42 is reduced, but the spring effect of the torsion spring 4 is not affected.

As an alternative of the utility model, the pliers further comprise a limiting device 6, wherein the limiting device 6 is used for limiting the relative motion of the first pliers handle 1 and the second pliers handle 2; when the cutting nipper is not used, the first nipper handle 1 and the second nipper handle 2 can be fixed through the limiting device 6 so that the cutting nipper is kept in storage and loading, the cutting nipper is convenient to store, and an operator can be prevented from being cut by the first cutter head 11 and the second cutter head 21 due to large openings.

As an alternative of the utility model, the lower end of the first cutter head 11 is hinged on the first clamp handle 1 through a second pin shaft 7, the lower end of the second cutter head 21 is hinged on the second clamp handle 2 through a third pin shaft 8, the middle parts of the first cutter head 11 and the second cutter head 21 are connected through at least one connecting piece 9, the connecting piece 9 is symmetrically arranged on the left side and the right side of the first cutter head 11 and the second cutter head 21, the first cutter head 11 and the second cutter head 21 are respectively hinged with the connecting piece 9 through a fourth pin shaft 10, the middle part of the connecting piece 9 is provided with a convex shaft, the middle parts of the first cutter head 11 and the second cutter head 21 can rotate by taking the convex shaft as the circle center, the end parts of the second pin shaft 7 and the third pin shaft 8 are respectively connected with a nut 13, the limiting device 6 comprises a limiting piece 61 and a limiting groove 62, one end of the limiting piece 61 is rotatably connected on the second pin shaft 7 or the, the limiting groove 62 is arranged at the other end of the limiting sheet 61 and is in rotation stopping fit with the nut 13, in this embodiment, one end of the limiting sheet 61 is rotatably connected to the third pin shaft 8, when the first forceps handle 1 and the second forceps handle 2 are close to each other, the other end of the limiting sheet 61 can rotate to abut against the nut 13 at the end of the second pin shaft 7, at this time, the nut 13 at the end of the second pin shaft 7 is embedded into the limiting groove 62 to be in rotation stopping fit with the limiting sheet 61, so that the second pin shaft 7 is limited to rotate by the matching of the limiting groove 62 and the nut 13, the action of the whole cutting pliers is limited, and the cutting pliers are kept in the state and do not act.

As the utility model discloses an alternative, in order to facilitate the operator to control the rotation of spacing piece 61, be equipped with operating portion 611 on the spacing piece 61, operating portion 611 protrusion is in spacing piece 61 surface setting, and operating portion 611 is the plate body on integrated into one piece and the spacing piece 61 surface of perpendicular to.

As the utility model discloses an alternative, the cutting edge of first tool bit 11 or second tool bit 21 is cylindric, and in this embodiment, the cutting edge of first tool bit 11 is cylindric, when being used for cutting the hose clamp of sleeve pipe outside, can make first tool bit 11 be located the sleeve pipe and support on the interior wall of sleeve pipe, and second tool bit 21 then cuts the hose clamp under ordering on of external force, and cylindric first tool bit 11 can not lead to the fact destruction to the interior wall of sleeve pipe, cuts the sleeve pipe repeatedly usable behind the hose clamp.

As the utility model discloses an alternative, all be equipped with anti-skidding structure on first pincers handle 1 and the second pincers handle 2, anti-skidding structure can be unevenness's anti-skidding line, and perhaps the rubber sleeve on the pincers handle is located to the cover again, and anti-skidding structure's effect is the hand when preventing the operator to use skids.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. A pair of cutting pliers is characterized in that: comprises that

The end part of the first clamp handle is connected with a first tool bit;

the second clamp handle is hinged with the first clamp handle through a first pin shaft, and the end part of the second clamp handle is connected with a second tool bit;

the first pin shaft is sleeved with a torsion spring, and the torsion spring is used for driving the first clamp handle and the second clamp handle to reset.

2. Cutting pliers according to claim 1 wherein: the first clamp handle is internally provided with a first cavity, and the second clamp handle is internally provided with a second cavity; the torsional spring includes first torque arm and second torque arm, first torque arm is located first cavity, the second torque arm is located the second cavity.

3. Cutting pliers according to claim 2 wherein: the tool also comprises an adjusting component, and the adjusting component is used for adjusting the minimum distance between the first tool bit and the second tool bit.

4. Cutting pliers according to claim 3 wherein: the adjusting assembly comprises an adjusting block and an adjusting column, the adjusting block is rotatably mounted on the first clamp handle, the adjusting column is fixedly connected to the second clamp handle and can be abutted to the adjusting block, and a plurality of adjusting protrusions with different radial lengths are arranged on the adjusting block along the circumferential direction of the adjusting block.

5. Cutting pliers according to claim 4 wherein: the end part of the second torque arm is fixedly connected with the adjusting column.

6. Cutting pliers according to claim 1 wherein: the pliers comprise a first pliers handle and a second pliers handle, and are characterized by further comprising a limiting device, wherein the limiting device is used for limiting the relative motion of the first pliers handle and the second pliers handle.

7. Cutting pliers according to claim 6 wherein: the lower end of the first tool bit is hinged to the first clamp handle through a second pin shaft, the lower end of the second tool bit is hinged to the second clamp handle through a third pin shaft, the middle portions of the first tool bit and the second tool bit are connected through at least one connecting piece, the first tool bit and the second tool bit are hinged to the connecting pieces through fourth pin shafts respectively, the end portions of the second pin shaft and the third pin shaft are connected with nuts respectively, the limiting device comprises a limiting piece and a limiting groove, one end of the limiting piece is rotatably connected to the second pin shaft or the third pin shaft, and the limiting groove is formed in the other end of the limiting piece and is matched with the nuts in a rotation stopping mode.

8. Cutting pliers according to claim 7 wherein: the limiting piece is provided with an operating part, and the operating part protrudes out of the surface of the limiting piece.

9. Cutting pliers according to claim 1 wherein: the cutting edge of the first cutter head or the second cutter head is cylindrical.

10. Cutting pliers according to claim 1 wherein: and the first clamp handle and the second clamp handle are both provided with anti-skidding structures.