CN201217217Y

CN201217217Y - Rotary knives

Info

Publication number: CN201217217Y
Application number: CNU2008200291011U
Authority: CN
Inventors: 徐一鸣; 窦婷婷
Original assignee: Shaanxi University of Science and Technology
Current assignee: Shaanxi University of Science and Technology
Priority date: 2008-05-15
Filing date: 2008-05-15
Publication date: 2009-04-08
Anticipated expiration: 2018-05-15

Abstract

Disclosed is a rotational knife which includes a knife handle 4; a knife head 1 is arranged on the knife handle 4; the knife head 1 includes a hollow shell 12; an opening 7 is arranged on the shell 12; an ellipsoidal rotatable knife bracket 3 is arranged in the center of the shell 12; at least one hole 8 is arranged on the knife bracket 3; a knife sheet 6 is fixed on the knife bracket 3; at the same time, the knife sheet 6 is arranged in the shell 12; a switch 2 is arranged on the shell 12, and the switch 2 is provided with a lug boss 9 which can be inserted into the hole 8; when the switch 2 is pulled down, the knife sheet 6 can be rotated to a proper position, and then the switch 2 is released, and the knife bracket 3 and the knife sheet 6 can be buckled so as to be used; a cover is covered on the knife after using; and the knife has the advantages of security, labor saving and resource saving.

Description

Rotary knife

Technical field

The utility model relates to a kind of knife, particularly a kind of rotary knife.

Background technology

At present, blade is generally strip, is straight mostly, and knife all has a long blade and point of a knife in use, has very big potential safety hazard, easily accidentally injures the user; Combine with plastics with iron and steel on the making material of knife, the mode of knife open closed mainly contains two kinds of folding and push-and-pulls, so blade fractures easily, palm is being held the handle of a knife thumb according to the knife back in use, and thumb is easily injured in the time of so firmly.General in addition knife is to use frequency the highest near the part blade of handle of a knife, and the blade of this part is also used blunt easily, and this part blade is used blunt, and whole knife has just been scrapped basically.Though the blade of some cutter can fracture with blunt part, fracture that it is not too easy again, and can cause the wasting of resources.

Summary of the invention

In order to overcome above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of rotary knife of safe in utilization, laborsaving, economical with materials.

To achieve these goals, the technical solution adopted in the utility model is: a kind of rotary knife, include handle of a knife 4, dispose cutter head 1 on the handle of a knife 4, said cutter head 1 comprises a hollow housing 12, configuration one opening 7 on the housing 12, the central authorities of housing 12 are provided with the rotatable blade holder 3 of spheroid shape, at least be provided with a hole 8 on the blade holder 3, be fixed with blade 6 on the blade holder 3, blade 6 is built in the housing 12 simultaneously, configuration one switch 2 on the housing 12, but the convex body 9 in switch 2 configurations one patchhole 8.

The corresponding position of opening 7 disposes lid 5.

One end of spring 11 is fixed on the housing 12, and the other end is fixed on the bottom T type convex body 10 of switch 2.

Blade 6 is shaped as circle.

Because having only when seldom a part is for use, the utility model is exposed; and blade has the protection of housing 12 up and down; so use safer; because blade 6 can rotate; so need not fracture with blunt part; have the advantages that to economize on resources, because blade 6 adopts circular design, so have the not characteristics of frangibility.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a side view of the present utility model.

Fig. 3 is an A-A view of the present utility model.

Fig. 4 is the structure principle chart of switch 2 of the present utility model.

The specific embodiment

Referring to Fig. 1,2, the utility model includes handle of a knife 4, disposes cutter head 1 on the handle of a knife 4, and said cutter head 1 comprises a hollow housing 12, configuration one opening 7 on the housing 12, opening 7 correspondence positions dispose lid 5, and the central authorities of housing 12 are provided with the rotatable blade holder 3 of spheroid shape, are provided with a hole 8 on the blade holder 3 at least, be fixed with blade 6 on the blade holder 3, blade 6 is built in the housing 12 simultaneously, and housing 12 is provided with a T type groove 13, disposes switch 2 in the T type groove 13.

Referring to Fig. 3,4, switch 2 bottoms are provided with the T type convex body 10 that matches with T type groove 13, T type convex body 10 can slide in T type groove 13, guarantee that switch 2 does not break away from housing 12, also be connected with spring 11 between housing 12 and the switch 2, one end of spring 11 is fixed on the housing 12, and the other end is fixed on the bottom T type convex body 10 of switch 2, but the contravention that joins of switch 2 and blade holder 3 is provided with the convex body 9 in the patchhole 8.

Operation principle of the present utility model is:

During use, hold blade holder 3 with thumb and forefinger, palm is held handle of a knife 4, the switch 2 of leaving behind, and convex body 9 leaves hole 8, rotating knife horse 3, blade 6 rotates thereupon together, decontrols switch 2 after blade 6 is rotated to the appropriate location, spring 11 with switch 2 toward pulling back, in patchhole 8, with blade 6 just can't rotate again by blade holder 3 for convex body 9 on the switch 2 like this; The time spent will not be pushed into opening 7 places on the lid 5, covers blade 6 and gets final product.

Claims

1, a kind of rotary knife, include handle of a knife (4), it is characterized in that, dispose cutter head (1) on the handle of a knife (4), said cutter head (1) comprises a hollow housing (12), housing (12) is gone up configuration one opening (7), and the central authorities of housing (12) are provided with the rotatable blade holder of spheroid shape (3), are provided with a hole (8) on the blade holder (3) at least, be fixed with blade (6) on the blade holder (3), blade (6) is built in housing (12) simultaneously, and housing (12) is gone up configuration one switch (2).

2, a kind of rotary knife according to claim 1 is characterized in that, the corresponding position of said opening (7) disposes lid (5).

3, a kind of rotary knife according to claim 1, it is characterized in that, said switch (2) but convex body (9) in the configuration one patchhole (8), also be connected with spring (11) between housing (12) and the switch (2), one end of spring (11) is fixed on the housing (12), and the other end is fixed on the bottom T type convex body (10) of switch (2).

4, the knife of a kind of rotation according to claim 1 is characterized in that, said blade (6) is shaped as circle.