CN104553535A

CN104553535A - Handheld pencil sharpener

Info

Publication number: CN104553535A
Application number: CN201410677413.3A
Authority: CN
Inventors: 陈道剑
Original assignee: Deli Group Co Ltd
Current assignee: Deli Group Co Ltd
Priority date: 2014-11-24
Filing date: 2014-11-24
Publication date: 2015-04-29

Abstract

The invention discloses a handheld pencil sharpener. The hand-held pencil sharpener comprises a front cover, a shell, a tool core, an automatic pencil advancing mechanism, a handle, an inner gear, transmission teeth, a rack, a back cover and a torsional spring, wherein the shell comprises two parts; one part is used for accommodating a pencil sharpening mechanism, and the other part is a handheld part, thereby constructing a handle mechanism with the handle; a handle shaft is connected to the shell; the rack is fixed on the handle shaft; one end of the torsional spring is fixed on the rack, and the other end of the torsional spring is fixed on the handle; the rack is meshed with the transmission teeth; the transmission teeth are meshed with the inner gear; the inner gear is matched with the tool core; the automatic pencil advancing mechanism, the tool core, the inner gear and the transmission teeth are fixed in sequence in the shell; the lower side of the tool core is inserted into a scrap box; the front part of the shell is covered by the front cover, and the back part of the shell is covered by the back cover. The handle is held with a hand, the rack and the gear are driven through reciprocating pressing between the handle and the shell, and the tool core is driven to rotate for sharpening a pencil, so that a user can apply force easily, force is saved, and convenience is brought to operation.

Description

Hand held penknife

Technical field

The present invention relates to a kind of penknife.

Background technology

Existing penknife comprises two types: hand-rail type penknife and electrodynamic type penknife, and the hand dynamic penknife structure of hand-rail type penknife, cuts pen and compare effort, especially to children, not too suitable; And although electrodynamic type penknife is laborsaving, complex structure, expends electric power.

Summary of the invention

Technical problem to be solved by this invention designs a kind of hand held penknife for above-mentioned prior art, and user can cut pen by shaking hands.

The present invention solves the problems of the technologies described above adopted technical scheme:

Hand held penknife, comprises protecgulum, housing, cutter core, automatically Jin Bi mechanism, handle, internal gear, driving cog, tooth bar, bonnet, torsion spring; Housing comprises two parts, and a part holds penknife structure, and another part, for holding part, forms with handle mechanism of shaking hands; Handle axis is connected on housing, stationary rack on mobile phone axle, and one end is fixed on tooth bar, and the other end is fixed on handle; Tooth bar engages with driving cog, and driving cog engages with internal gear, and internal gear coordinates with cutter core; Automatic Jin Bi mechanism, cutter core, internal gear, driving cog are fixed in housing successively, insert bits box below cutter core, and housing front portion is covered by protecgulum, and rear portion is covered by bonnet.

Compared with prior art, the invention has the advantages that: grasp handle, by the reciprocal pressing belt carry-over bar gear drive between handle and housing, thus band moving knife core rotates, can cut pen, therefore user easily exerts all one's strength, more laborsaving and handled easily.

Accompanying drawing explanation

Fig. 1 is the front view of the invention process illustration hand held penknife.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the explosive view of embodiment of the present invention hand held penknife.

Fig. 4 be embodiment of the present invention hand held penknife cut pen state figure.

Detailed description of the invention

Below in conjunction with accompanying drawing embodiment, the invention will be further described.

As shown in Figure 1, Figure 2, Figure 3 shows, hand held penknife comprises protecgulum 1, housing 2, cutter core 3, automatically Jin Bi mechanism 4, handle 5, internal gear 6, driving cog 7, tooth bar 8, bonnet 9, torsion spring 10.

Housing 2 comprises two parts, and a part holds penknife structure 21, and another part, for holding part 22, forms with handle mechanism of shaking hands.

Handle 5 axle is connected on housing 2, stationary rack 8 on mobile phone axle, and torsion spring 10 one end is fixed on tooth bar 8, and the other end is fixed on handle 5.

Tooth bar 8 engages with driving cog 7, and driving cog 7 engages with internal gear 6, and internal gear 6 coordinates with cutter core 3.

Automatic Jin Bi mechanism 4, cutter core 3, internal gear 6, driving cog 7 are fixed in housing 2 successively, and insert bits box 11 below cutter core 3, housing 2 front portion is covered by protecgulum 1, and rear portion is covered by bonnet 9.

When to cut, pencil is filled in cutter core 3 by automatic Jin Bi mechanism 4, grasp handle 5 and press handle 5, the tooth bar 8 be connected with handle 5 is driven to rotate, by handle 5 reciprocate through tooth bar 8 and driving cog 7 is transformed into rotary motion, what continue passes to cutter core 3, makes cutter core 3 rotate and cut the pencil entering cutter core 3, sees Fig. 4.

Claims

1. hand held penknife, is characterized in that: comprise protecgulum, housing, cutter core, automatically Jin Bi mechanism, handle, internal gear, driving cog, tooth bar, bonnet, torsion spring; Housing comprises two parts, and a part holds penknife structure, and another part, for holding part, forms with handle mechanism of shaking hands; Handle axis is connected on housing, stationary rack on mobile phone axle, and one end is fixed on tooth bar, and the other end is fixed on handle; Tooth bar engages with driving cog, and driving cog engages with internal gear, and internal gear coordinates with cutter core; Automatic Jin Bi mechanism, cutter core, internal gear, driving cog are fixed in housing successively, insert bits box below cutter core, and housing front portion is covered by protecgulum, and rear portion is covered by bonnet.