CN111469068A

CN111469068A - Multi-specification easy-head-changing pliers

Info

Publication number: CN111469068A
Application number: CN202010434023.9A
Authority: CN
Inventors: 韩建军
Original assignee: Yuyao City Sanjian Tool Co ltd
Current assignee: Yuyao City Sanjian Tool Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-07-31

Abstract

The invention provides multi-specification easy-head-changing pliers, which comprise handles and pliers heads detachably connected to the handles; the handle comprises a handle insert arranged at the front end; a limiting counter bore is arranged in the handle insert; a first inclined plane is arranged on one side of the limiting sink, and a second inclined plane is arranged on the other side of the limiting sink; the forceps head comprises a third inclined plane arranged at the tail part; a limiting boss is arranged on the side surface of the binding clip; the first inclined plane is matched with the third inclined plane; the limiting counter bore is matched with the limiting boss. The multi-specification easy-head-changing pliers are simple in structure, strong in rigidity, large in torsion and convenient to use, the pliers head can be quickly inserted into the handle, and the pliers head and the handle are quickly and stably connected in a double limiting mode, so that multiple purposes are realized, materials and cost are saved, and the problems that the existing head-changing snap spring pliers are complex in head changing step, poor in structural rigidity, small in torsion, small in application range and incapable of being applied to large-torsion pliers structures are solved.

Description

Multi-specification easy-head-changing pliers

Technical Field

The invention relates to the technical field of hand tools, in particular to multi-specification pliers with heads easy to replace.

Background

At present, the multi-functional head-replaceable clamp spring pincers sold in the market are mostly external torsion springs, double coaxial and four fastener superposition limit structures, and a plurality of binding clips are detachably connected to a handle through the structure, so that the aim of one pincers with multiple purposes is achieved, and the multi-functional head-replaceable clamp spring pincers still have the following defects in the actual use:

(1) when changing the binding clip of different specifications, need pull down the fastener with the instrument earlier or press the central both sides of binding clip axle hard, stir the rotatory 90 to the vertical direction of locking plate time, take out the binding clip and change, then locking fastener or stir the rotatory 90 lockings binding clip of locking plate, just can accomplish the change, operating procedure is complicated, inconvenient change, especially carry out the operation under special operating condition (for example during high altitude construction, a hand need keep healthy balanced sometimes, if again in dark environment operation, a hand needs handheld lighting apparatus), it is especially inconvenient to change the binding clip.

(2) The changed forceps head can be carelessly touched with the tail of the forceps head in operation, so that the forceps head is easy to overturn and separate from the handle positioning guide pillar, the function of the forceps head is invalid, and an operator needs to re-mount the forceps head into the handle positioning guide pillar by hand to continue using the forceps head.

(3) The clamp spring clamp is limited to the structure of the clamp spring clamp and cannot be used for clamps with other functions.

(4) The structure has poor rigidity and small torsion.

Therefore, it is necessary to invent a multifunctional pliers with replaceable head, which is easy to replace various pliers heads and not easy to fail.

Disclosure of Invention

In order to solve the problems, the invention provides multi-specification pliers with heads easy to replace.

The technical scheme of the invention is as follows: a multi-specification easy-head-changing pliers comprises a handle and a pliers head detachably connected to the handle; the handle comprises a handle insert arranged at the front end; a limiting counter bore is arranged in the handle insert; one side of the limiting counter bore is provided with a first inclined surface, and the other side of the limiting counter bore is provided with a second inclined surface; the forceps head comprises a third inclined plane arranged at the tail part; the side surface of the binding clip is provided with a limit boss; the first inclined plane is matched with the third inclined plane; the limiting counter bore is matched with the limiting boss.

Furthermore, a positioning hole is formed in the front end of the handle and matched with the limiting counter bore; the positioning hole and the limiting counter bore are provided with fasteners; the handle is connected with the handle insert through a fastener.

Further, the handle is connected with the handle insert in a welding mode.

Further, the handle comprises an upper handle and a lower handle; the upper handle and the lower handle are movably connected through two handle fixing pieces.

Further, the handle inserts comprise an upper handle insert and a lower handle insert; an arc is arranged on one side of the upper handle insert, and a semicircular arc is arranged on one side of the front end of the lower handle; the circular arc is matched with the semicircular arc and used for limiting the opening and closing starting and stopping positions of the upper handle and the lower handle.

Furthermore, an independent torsion spring is arranged in the binding clip.

Furthermore, the head of the pliers head comprises a scissors assembly, an inclined nozzle assembly, a sharp nozzle assembly, a steel wire pliers assembly and a wire stripping pliers assembly.

The multi-specification easy-head-changing pliers are simple in structure, strong in rigidity, large in torsion and convenient to use, and the pliers heads can be quickly inserted into handles and are attached to third inclined planes through the first inclined planes in the handle inserts; the dual limiting mode that the limiting boss is buckled in the limiting counter bore realizes the connection of the binding clip and the handle, thereby realizing one handle for multiple purposes, saving materials and cost, and solving the problems that the existing head-replaceable snap spring clamp has complex head-replacing steps, poor structural rigidity, small torsion, small application range, and incapability of being applicable to large-torsion clamp structures and the like.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a partial structural cross-sectional view of the upper handle insert and lower handle engagement limit;

FIG. 4 is a schematic structural view of a nib assembly;

FIG. 5 is a schematic structural view of the scissor assembly;

FIG. 6 is a schematic structural view of the beveled tip assembly;

FIG. 7 is a schematic structural view of a wire plier assembly;

fig. 8 is a schematic structural view of a wire stripper assembly.

In the figure, a handle-1 and a forceps head-2; 1.1 parts of handle inserts, 1.2 parts of limiting counter bores, 1.3 parts of first inclined planes, 1.4 parts of second inclined planes, 1.5 parts of positioning holes, 1.6 parts of fasteners, 1.7 parts of upper handles, 1.8 parts of lower handles, 1.9 parts of handle fixing parts and 1.10 parts of semicircular arcs; a third inclined plane-2.1, a limit boss-2.2, an independent torsion spring-2.3, a scissors component-2.4, an inclined nozzle component-2.5, a sharp nozzle component-2.6, a wire cutter component-2.7 and a wire stripper component-2.8; upper handle insert-1.1.1, lower handle insert-1.1.2, arc-1.1.3.

Detailed Description

The multi-specification easy-to-change head pliers of the invention are explained in detail below with reference to the accompanying drawings.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, a pair of multi-specification easy-to-change pliers comprises a handle 1 and a pliers head 2 detachably connected to the handle 1; the handle 1 comprises a handle insert 1.1 arranged at the front end; a limiting counter bore 1.2 is arranged in the handle insert 1.1; a first inclined plane 1.3 is arranged on one side of the limiting counter bore 1.2, and a second inclined plane 1.4 is arranged on the other side; the binding clip 2 comprises a third inclined surface 2.1 arranged at the tail part; the side surface of the binding clip 2 is provided with a limit boss 2.2; the first inclined plane 1.3 is matched with the third inclined plane 2.1; the limiting counter bore 1.2 is matched with the limiting boss 2.2; the front end of the handle 1 is provided with a positioning hole 1.5, and the positioning hole 1.5 is matched with the limiting counter bore 1.2; the positioning hole 1.5 and the limiting counter bore 1.2 are provided with a fastener 1.6; the handle 1 is connected with the handle insert 1.1 through a fastener 1.6; the handle 1 is connected with the handle insert 1.1 in a welding mode; the handle 1 comprises an upper handle 1.7 and a lower handle 1.8; the upper handle 1.7 and the lower handle 1.8 are movably connected through two handle fixing pieces 1.9; the handle insert 1.1 comprises an upper handle insert 1.1.1 and a lower handle insert 1.1.2; an arc 1.1.3 is arranged on one side of the upper handle insert 1.1.1, and a semi-arc 1.10 is arranged on one side of the front end of the lower handle 1.8; the arc 1.1.3 is matched with the semi-arc 1.10 and used for limiting the opening and closing starting and stopping positions of the upper handle 1.7 and the lower handle 1.8; an independent torsion spring 2.3 is arranged in the binding clip 2; the head part of the binding clip 2 comprises a scissors component 2.4, an inclined nozzle component 2.5, a sharp nozzle component 2.6, a wire cutter component 2.7 and a wire stripper component 2.8.

In actual use, a user only needs to take out the needed forceps head 2 and insert the front end of the handle 1 to complete the installation of the forceps head; in the inserting process, the second inclined plane 1.4 plays a role in guiding in the inserting process, so that the inserting action of the binding clip 2 is more convenient, the first inclined plane 1.3 and the third inclined plane 2.1 are attached to each other in the handle insert 1.1, and the double limiting mode that the limiting boss 2.2 is buckled in the limiting counter bore 1.2 realizes the quick and firm connection of the binding clip 2 and the handle 1.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a many specifications trade first pliers easily which characterized in that: comprises a handle (1) and a tong head (2) which is detachably connected with the handle (1); the handle (1) comprises a handle insert (1.1) arranged at the front end; a limiting counter bore (1.2) is arranged in the handle insert (1.1); a first inclined plane (1.3) is arranged on one side of the limiting counter bore (1.2), and a second inclined plane (1.4) is arranged on the other side of the limiting counter bore; the tong head (2) comprises a third inclined plane (2.1) arranged at the tail part; a limiting boss (2.2) is arranged on the side surface of the binding clip (2); the first inclined plane (1.3) is matched with the third inclined plane (2.1); the limiting counter bore (1.2) is matched with the limiting boss (2.2).

2. The multi-specification easy-to-change head pliers according to claim 1, wherein: the front end of the handle (1) is provided with a positioning hole (1.5), and the positioning hole (1.5) is matched with the limiting counter bore (1.2); the positioning hole (1.5) and the limiting counter bore (1.2) are provided with fasteners (1.6); the handle (1) is connected with the handle insert (1.1) through a fastener (1.6).

3. The multi-specification easy-to-change head pliers according to claim 2, wherein: the handle (1) is connected with the handle insert (1.1) in a welding mode.

4. The multi-specification easy-to-change head pliers according to claim 3, wherein: the handle (1) comprises an upper handle (1.7) and a lower handle (1.8); the upper handle (1.7) and the lower handle (1.8) are movably connected through two handle fixing pieces (1.9).

5. The multi-specification easy-to-change head pliers according to claim 4, wherein: the handle insert (1.1) comprises an upper handle insert (1.1.1) and a lower handle insert (1.1.2); an arc (1.1.3) is arranged on one side of the upper handle insert (1.1.1), and a semi-arc (1.10) is arranged on one side of the front end of the lower handle (1.8); the arc (1.1.3) is matched with the semi-arc (1.10) and used for limiting the opening and closing starting and stopping positions of the upper handle (1.7) and the lower handle (1.8).

6. The multi-specification easy-to-change head pliers according to claim 1, wherein: an independent torsion spring (2.3) is arranged in the binding clip (2).

7. The multi-specification easy-to-change head pliers according to claim 6, wherein: the head of the binding clip (2) comprises a scissors component (2.4), an inclined nozzle component (2.5), a sharp nozzle component (2.6), a wire cutter component (2.7) and a wire stripper component (2.8).