CN205202547U - Prevent disconnected core pencil sharpener - Google Patents

Abstract

The utility model relates to a prevent disconnected core pencil sharpener, including the base, roll up a hole, the base top surface is equipped with the cutting blade, the cutting blade be 24 with the contained angle of rolling up a hole axis, the cutting blade be 0.15 -0.18mm with the tangent plane distance, the cutting blade be 0.01mm with the tangent plane depth of parallelism, the cutting edge and a book hole axis contained angle of cutting blade are 1, the contained angle opening moves towards a roll hole opening, the axis is underlaped in the projection of cutting blade on locating the plane. The utility model discloses with the cutting blade with roll up a hole contained angle design be 24 and cutting blade and tangent plane distance for 0.15 -0.18mm, need only put the pencil into pencil sharpener in, utilize very little power to cut with regard to rolling up, the cutting blade is 0.01mm with the tangent plane depth of parallelism, and the projection of cutting edge in rolling up a hole axis plane and a book hole axis contained angle of cutting blade are 1, guarantee the enough roundings of nib, and the maximum utilization of pencil can be guaranteed to its accurate cutting output.

Description

A kind of core-broken pencil sharpener

Technical field

The utility model relates to pencil sharpener technical field, particularly a kind of core-broken pencil sharpener.

Background technology

Pencil sharpener on current staple market has varied, but just very can roll up the nib that cuts out and can control the pencil sharpener time not rolling up the amount of cutting and almost do not have.During pencil sharpener volume, cutting output is excessive, pencil not with several lower just without, and volume to cut out the nib come bad, have cylindrical, have in pancake, in actual use, if inner the big nib of hand will rupture.

Utility model content

For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of core-broken pencil sharpener.

The utility model solves the technical scheme that its technical problem adopts: a kind of core-broken pencil sharpener, comprise pedestal, be arranged at the pen-rolling hole of described pedestal side, described base top surface is provided with cutting tip, the angle of described cutting tip and described pen-rolling hole axis is 24 °, described cutting tip is 0.15-0.18mm with tangent plane parallel with cutting tip on described pen-rolling hole distance, described cutting tip is 0.01mm with the tangent plane depth of parallelism parallel with cutting tip on described pen-rolling hole, the projection in described pen-rolling hole axial plane of the cutting edge of described cutting tip and described pen-rolling hole axis angle are 1 °, described angle opening is towards pen-rolling hole opening, the projection of described axis in plane residing for described cutting tip is not overlapping.

In above-mentioned design, cutting tip and pen-rolling hole angle being designed to 24 ° and cutting tip with tangent plane parallel with cutting tip on described pen-rolling hole distance is 0.15-0.18mm, as long as pencil is put in pencil sharpener, utilizes very little power to cut with regard to rolling up; Described cutting tip is 0.01mm with the tangent plane depth of parallelism parallel with cutting tip on described pen-rolling hole, the projection in described pen-rolling hole axial plane of the cutting edge of cutting tip and described pen-rolling hole axis angle are 1 °, ensure the enough roundings of nib, its accurate cutting output can ensure the peak use rate of pencil.

As the further improvement of the design, described pedestal is provided with row's core bore, and described row's core bore is communicated with described pen-rolling hole end, and described row's core bore stretches out pedestal one end height lower than the other end, and described row's core bore diameter is greater than and is cut pen core diameter.Be convenient to pen core and chip discharge.

As the further improvement of the design, described pedestal both sides are provided with deep-slotted chip breaker, are convenient to hold pedestal and rotating basis.

The beneficial effects of the utility model are: cutting tip and pen-rolling hole angle are designed to 24 ° by the utility model and cutting tip is 0.15-0.18mm with tangent plane parallel with cutting tip on described pen-rolling hole distance, as long as pencil is put in pencil sharpener, utilize very little power just can roll up and cut; Described cutting tip is 0.01mm with the tangent plane depth of parallelism parallel with cutting tip on described pen-rolling hole, the projection in described pen-rolling hole axial plane of the cutting edge of cutting tip and described pen-rolling hole axis angle are 1 °, ensure the enough roundings of nib, its accurate cutting output can ensure the peak use rate of pencil.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is perspective view of the present utility model.

Fig. 2 is generalized section of the present utility model.

Fig. 3 is schematic top plan view of the present utility model.

Fig. 4 is pen-rolling hole of the present utility model and cutting tip relative position schematic diagram.

1. pedestals, 2. deep-slotted chip breaker, 3. cutting tip, 4. pen-rolling hole in the drawings, 5. arranges core bore, 6. tangent plane, 7. cutting edge, 8. axis.

Detailed description of the invention

The utility model is described in detail, illustrative examples wherein and illustrate and be only used for explaining the utility model below in conjunction with accompanying drawing and specific embodiment, but not as to restriction of the present utility model.

Embodiment: a kind of core-broken pencil sharpener, comprise pedestal 1, be arranged at the pen-rolling hole 4 of described pedestal 1 side, described pedestal 1 end face is provided with cutting tip 3, described cutting tip 3 is 24 ° with the angle of described pen-rolling hole 4 axis 8, described cutting tip 3 and tangent plane 6 parallel with cutting tip 3 on described pen-rolling hole 4 are apart from being 0.15-0.18mm, described cutting tip 3 is 0.01mm with tangent plane 6 depth of parallelism parallel with cutting tip 3 on described pen-rolling hole 4, the projection in described pen-rolling hole 4 axis 8 plane of the cutting edge 7 of described cutting tip 3 and described pen-rolling hole 4 axis 8 angle are 1 °, described angle opening is towards pen-rolling hole 4 opening, the projection of described axis 8 in plane residing for described cutting tip 3 is not overlapping.

In above-mentioned design, cutting tip 3 and pen-rolling hole 4 angle being designed to 24 ° and cutting tip 3 with tangent plane 6 parallel with cutting tip 3 on described pen-rolling hole 4 apart from being 0.15-0.18mm, as long as pencil is put in pencil sharpener, utilizing very little power just can roll up and cutting; Described cutting tip 3 is 0.01mm with tangent plane 6 depth of parallelism parallel with cutting tip 3 on described pen-rolling hole 4, the projection in described pen-rolling hole 4 axis 8 plane of the cutting edge 7 of cutting tip 3 and described pen-rolling hole 4 axis 8 angle are 1 °, ensure the enough roundings of nib, its accurate cutting output can ensure the peak use rate of pencil.

As the further improvement of the design, described pedestal 1 row of being provided with core bore 5, described row's core bore 5 is communicated with described pen-rolling hole 4 end, and described row's core bore 5 stretches out pedestal 1 one end height lower than the other end, and described row's core bore 5 diameter is greater than and is cut pen core diameter.Be convenient to pen core and chip discharge.

As the further improvement of the design, described pedestal 1 both sides are provided with deep-slotted chip breaker 2, are convenient to hold pedestal 1 and rotating basis 1.

The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims (3)

1. a core-broken pencil sharpener, comprise pedestal, be arranged at the pen-rolling hole of described pedestal side, described base top surface is provided with cutting tip, it is characterized in that, the angle of described cutting tip and described pen-rolling hole axis is 24 °, described cutting tip is 0.15-0.18mm with tangent plane parallel with cutting tip on described pen-rolling hole distance, described cutting tip is 0.01mm with the tangent plane depth of parallelism parallel with cutting tip on described pen-rolling hole, the projection in described pen-rolling hole axial plane of the cutting edge of described cutting tip and described pen-rolling hole axis angle are 1 °, described angle opening is towards pen-rolling hole opening, the projection of described axis in plane residing for described cutting tip is not overlapping.

2. a kind of core-broken pencil sharpener according to claim 1, it is characterized in that, described pedestal is provided with row's core bore, and described row's core bore is communicated with described pen-rolling hole end, described row's core bore stretches out pedestal one end height lower than the other end, and described row's core bore diameter is greater than and is cut pen core diameter.

3. a kind of core-broken pencil sharpener according to claim 1, is characterized in that, described pedestal both sides are provided with deep-slotted chip breaker.