CN2823001Y

CN2823001Y - Novel pencil sharpener

Info

Publication number: CN2823001Y
Application number: CN 200520118098
Authority: CN
Inventors: 谷江锁
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-27
Filing date: 2005-09-27
Publication date: 2006-10-04
Anticipated expiration: 2015-09-27

Abstract

The utility model discloses a novel pencil sharpener. Two pencil sharpening taper holes (2 and 3) are arranged on a knife frame body (1), wherein the diameter of the inner end of one taper hole (2) is larger than the diameter of a lead cord, and the diameter of the inner end of the other taper hole (3) is smaller than the diameter of the lead cord. Knife blades are respectively arranged in the two pencil planing taper holes (2 and 3). When a pencil is sharpened, the pencil is put in the large taper hole (2) firstly, and the lead cord passes through from the lower end of a knife blade (21) of the taper hole (2), so the wood part of the pencil is just sharpened. Then the pencil is arranged in the small taper hole (3), and because the taper hole (3) is smaller, the lead cord part is just sharpened by a knife blade (31) which is arranged at the inner part. In this way, the pencil can be sharpened by two steps and the breaking of the lead cord can be reduced. The utility model can be conveniently used and can effectively prevent the lead cord from breaking.

Description

The NEW Pb graver

Technical field:

The utility model relates to a kind of mechanical device that sharpens a pencil, the NEW Pb graver that disconnected plumbous number of times greatly reduces when especially sharpening a pencil.

Background technology:

Existing pencil-knife mainly is to be made of tool-post structure and blade.When using pencil-knife to sharpen a pencil, in cutting pencil timber, also cutting lead for retractable pencil, because the different or defective pencil of pencil timber, all can cause lead for retractable pencil off-centre, when sharpening a pencil, be difficult to like this accomplish that lead for retractable pencil is in the center of circle,, cause unnecessary waste so often cause the lead for retractable pencil fracture.

The utility model content:

The purpose of this utility model prevents disconnected plumbous NEW Pb graver when being a kind of sharpening a pencil is provided.

The technical solution of the utility model is: this pencil-knife, comprise tool-post structure and blade, and establish two on the tool-post structure and dig a taper hole, the inner diameter of one of them taper hole is greater than lead core diameter, and the inner diameter of another taper hole is less than lead core diameter, and described blade is two, places respectively to dig in the taper hole.

As a kind of improvement project of the present utility model be: described two blades are folding shape disjunctor blade.

Have two to dig a taper hole on the utility model tool-post structure, the inner diameter of taper hole is greater than lead core diameter, and the inner diameter of another taper hole is less than lead core diameter, be respectively equipped with blade in two taper holes, when sharpening a pencil, at first pencil is placed in the big taper hole, lead for retractable pencil passes through under the blade of taper hole, the timber part that only sharpens a pencil, then pencil is placed in the little taper hole again, because taper hole is less, its built-in blade will only be cut the lead for retractable pencil part, sharpen a pencil like this and cut in two steps, can significantly reduce disconnected plumbous.The utility model is easy to use, and can effectively prevent disconnected plumbous.For easy for installation, the utility model can be made two blades folding shape disjunctor blade.

Description of drawings:

Fig. 1 is the utility model novel pencil knife structure schematic diagram.

Fig. 2 is the structural representation of two blades shown in Figure 1.

The specific embodiment:

As shown in Figure 1, the utility model pencil-knife, comprise tool-post structure 1 and blade, only establish one on the regular knife support body and dig a taper hole, and the inner diameter of taper hole is less than lead core diameter, and the utility model is established two

plane taper holes

2,3 on tool-post structure 1, one of them taper hole 2 inner diameter is greater than lead core diameter, and another taper hole 3 inner diameters are less than lead core diameter, taper hole 3 inner diameter adapt with the nib point degree that sharpens a pencil, the utility model blade is two 21,31, places respectively to dig in the taper hole 2,3.The utility model is easy for installation, as shown in Figure 2, can dig a

taper hole

2,3 with two and be located at tool-post structure 1 two ends respectively, two

blades

21,31 are made folding shape disjunctor blade, promptly two

blades

21,31 are made a blade, then a part is fallen in middle punching press, just form folding shape disjunctor blade.Plastic injection-moulded the forming of the utility model tool-post structure 1 usefulness, also available other material.In addition, the utility model also can be installed in tool-post structure 1 on the pedestal, uses more convenient, comfortable like this.

Claims

1, a kind of NEW Pb graver, comprise tool-post structure and blade, it is characterized in that: establish two on the described tool-post structure (1) and dig a taper hole (2,3), the inner diameter of one of them taper hole (2) is greater than lead core diameter, and the inner diameter of another taper hole (3) is less than lead core diameter, described blade is two (21,31), places respectively to dig in the taper hole (2,3).

2, NEW Pb graver according to claim 1 is characterized in that: described two blades (21,31) are folding shape disjunctor blade.