CN204209711U

CN204209711U - The special shearing knife of coiled material

Info

Publication number: CN204209711U
Application number: CN201420678077.XU
Authority: CN
Inventors: 曹洪征
Original assignee: Beijing Oriental Yuhong Waterproof Technology Co Ltd
Current assignee: Beijing Oriental Yuhong Waterproof Technology Co Ltd
Priority date: 2014-11-13
Filing date: 2014-11-13
Publication date: 2015-03-18
Anticipated expiration: 2024-11-13

Abstract

The utility model relates to the special shearing knife of a kind of coiled material, it is characterized in that: comprise handle of a knife, blade is installed respectively in the two ends of handle of a knife, and one of them blade is straight knife sheet, and the blade of the other end is crotch cutter, the cutting blade of described crotch cutter is arc, the utility model, in waterproof coiled material construction process, can ensure stability and the stability of cutting, effective raising cutting efficiency, improve the service life of cut-off knife simultaneously, reduce coiled material cutting cost.

Description

The special shearing knife of coiled material

Technical field

The utility model relates to the special shearing knife of a kind of coiled material.

Background technology

In modern waterproofing design and work progress, coiled material class waterproof material is the most general, and in waterproof coiled material work progress, the cutting of coiled material is essential, but there is no unified and standard special coiled material cut-off knife at present, the coiled material cut-off knife generally adopted is common paper knife, and conventional cut-off knife is unstable when there is cutting, coiled material cutting is straight, knife rest be plastic products often shaky, blade easily destroy, use people and compare effort, easily destroy the defects such as next layer coiled material, the cut-off knife service life that have laid is short when coiled material surface cutting.

Utility model content

It is convenient that technical problem to be solved in the utility model is to provide a kind of cutting, shearing knife stable when simultaneously cutting.

The technical scheme realizing above-mentioned purpose is as follows:

The special shearing knife of coiled material, is characterized in that: comprise handle of a knife, blade is installed respectively in the two ends of handle of a knife, and one of them blade is straight knife sheet, and the blade of the other end is crotch cutter, and the cutting edge of described crotch cutter is arc.

Preferably, described straight knife sheet substantially in an isosceles trapezoidal structure, isosceles trapezoid go to the bottom as main cutting edge, two waists of isosceles trapezoid are attached cutting edge.

Preferably, described crotch cutter is substantially in an arcuate structure, and have a cambered surface and a plane, the arc-shaped side of cambered surface is cutting edge, and cambered surface and Plane intersects place are two wedge angles, is wherein starting point with wedge angle, the monosymmetric of plane is provided with a groove.

Preferably, the end face of cambered surface is provided with one or two open-works, placing screws in open-work, by screw, crotch cutter is fixed on handle of a knife.

Preferably, described handle of a knife is roughly a rectangular structure, and the both sides that staff grips handle of a knife are arc.

Preferably, described handle of a knife is metal material.

The utility model, in waterproof coiled material construction process, can ensure stability and the stability of cutting, and effective raising cutting efficiency, improves the service life of cut-off knife simultaneously, reduce coiled material cutting cost.

Accompanying drawing explanation

Fig. 1 is the utility model schematic diagram

Fig. 2 is straight knife sheet schematic diagram

Fig. 3 is crotch cutter schematic diagram

Figure number illustrates: handle of a knife 1, straight knife sheet 2, crotch cutter 3

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in detail.

The special shearing knife of coiled material, comprises handle of a knife 1, and blade is installed respectively in the two ends of handle of a knife, and one of them blade is straight knife sheet 2, and the blade of the other end is crotch cutter 3, and the cutting blade of described crotch cutter is arc.

Straight knife sheet substantially in an isosceles trapezoidal structure, isosceles trapezoid go to the bottom 21 for main cutting edge, two waists of isosceles trapezoid are attached cutting edge, when installing, main cutting edge and handle of a knife junction are installed at an angle, and with the direction shown in Fig. 1 for benchmark, main cutting edge is vertical with horizontal direction.Straight knife sheet in the utility model can use as two blades, when one of them blade breaks down, changes the blade of another side.

Crotch cutter 3 is substantially in an arcuate structure, there is cambered surface 31 and a plane 32, the arc-shaped side 311 of cambered surface is cutting edge, and cambered surface and Plane intersects place are two wedge angles 33, is wherein starting point with wedge angle, the monosymmetric of plane is provided with a groove 34, the end face of cambered surface is provided with one or two open-works 35, placing screws in open-work, by screw, crotch cutter is fixed on handle of a knife, preferred cambered surface is a circular part or a part for ellipse, and the cutting edge on such both sides is symmetrical.

Handle of a knife is roughly a rectangular structure, the both sides that staff grips handle of a knife are arc, arc handle of a knife, meet staff to exert oneself feature, of long duration also can not feel painstaking, on handle of a knife, increase dynamics because the special shearing knife of coiled material is in use usual, therefore handle of a knife uses more solid metal material.

Only expose the cutting edge of blade in the utility model, therefore blade is more short and small solid, well protects blade, improves the service life of cut-off knife.The utility model can need the concrete condition of cutting out to use different blades according to scene.

The utility model is stable when cutting coiled material, coiled material cutting straight, especially cambered blade when cutting and the area of cylinder contacts be not point-like contacts, can well prevent from being cropped to next layer coiled material laid.

Sum up advantage of the present utility model as follows:

1) the utility model has taken into full account that people holds the convenience of cut-off knife when trimming operation, have employed durable metal arc handle of a knife, meets staff and to exert oneself feature, of long duration also can not feel to entail much effort;

2) different blade structures is adopted can to carry out cutting in a variety of situations;

3) during cut-off knife design, exposed blade is short and small solid, well protects blade, improves the service life of cut-off knife.

These are only the preferred embodiment of the utility model embodiment; not in order to limit the utility model embodiment; within all spirit in the utility model embodiment and principle; any amendment of doing, equivalent replacement, improvement etc., all should be included in the protection domain of the utility model embodiment.

Claims

1. the special shearing knife of coiled material, is characterized in that: comprise handle of a knife, and blade is installed respectively in the two ends of handle of a knife, and one of them blade is straight knife sheet, and the blade of the other end is crotch cutter, and the cutting edge of described crotch cutter is arc.

2. the special shearing knife of coiled material according to claim 1, is characterized in that: described straight knife sheet substantially in an isosceles trapezoidal structure, isosceles trapezoid go to the bottom as main cutting edge, two waists of isosceles trapezoid are attached cutting edge.

3. the special shearing knife of coiled material according to claim 1, it is characterized in that: described crotch cutter is substantially in an arcuate structure, there is a cambered surface and a plane, the arc-shaped side of cambered surface is cutting edge, cambered surface and Plane intersects place are two wedge angles, be wherein starting point with wedge angle, the monosymmetric of plane is provided with a groove.

4. the special shearing knife of coiled material according to claim 3, be is characterized in that: the end face of cambered surface is provided with one or two open-works, placing screws in open-work, is fixed on handle of a knife by crotch cutter by screw.

5. the special shearing knife of coiled material according to claim 1, is characterized in that: described handle of a knife is roughly a rectangular structure, and the both sides that staff grips handle of a knife are arc.

6. the special shearing knife of coiled material according to claim 1, is characterized in that: described handle of a knife is metal material.