CN108327432A

CN108327432A - A kind of hand held pencil sharpener

Info

Publication number: CN108327432A
Application number: CN201810190570.XA
Authority: CN
Inventors: 魏长同
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-03-08
Filing date: 2018-03-08
Publication date: 2018-07-27

Abstract

The invention discloses a kind of hand held pencil sharpener, including power plant module and cut pen module；The power plant module includes sleeve, handle, shaft, and in sleeve both sides, handle rear end is equipped with rack for wherein handle setting, and shaft is interspersed in sleeve and is rotatablely connected with sleeve, and shaft rear end is equipped with one-way clutch, and one-way clutch peripheral surface is equipped with gear；The pen module of cutting includes shell, knife rest, screw-on cutter, inside engaged gear group, and one end of intermediate slide is fixedly connected with the shaft on power plant module, and one end of screw-on cutter is connected with inside engaged gear group.The present invention can work without supporting desktop, can use under various circumstances；It only need to simply hold with a firm grip and unclamp handle, so that it may cutting of the realization to pencil, it is laborsaving time saving, rapidly and efficiently.

Description

A kind of hand held pencil sharpener

Technical field

The invention belongs to cultural goods technical field, specially a kind of hand held pencil sharpener.

Background technology

Pencil sharpener is a kind of sharpening pencil tool, and existing pencil sharpener has two kinds of electrodynamic type and hand-rail type, power-driven sharpener Pen is cut by motor-driven knife is rotational automatic, it is easy to use, but the refuse battery after electric pencil-sharpening unit use pollutes the environment, and does not save Can be environmentally friendly, it cannot then be used when battery electric power is insufficient or without external power supply, and be unfavorable for improving the manipulative ability of children；Hand It shakes formula pencil sharpener and pen is cut by artificial rotary manual, hand-operated pencil sharpener needs to put pencil sharpener on the table when in use, works as room It is outer when painting from life or charting due to there is no a desktop and can not normal use hand-operated pencil sharpener, hand-operated pencil sharpener uses on the table When, elbow is easy to encounter desktop in rocking handle, and sometimes elbow encounters desktop in rocking handle in order to prevent, and often pencil sharpener is put In table edge, but pencil sharpener can be caused unstable, pen tool is easy bias, easily causes disconnected core phenomenon.

Invention content

In order to solve the deficiencies in the prior art, the present invention provides a kind of hand held pencil sharpener.

The technical solution adopted in the present invention is：A kind of hand held pencil sharpener, it is characterized in that：The pencil sharpener includes power mould Block and cut pen module；

The power plant module, which is used for driving, cuts pen module rotation, and power plant module includes sleeve, handle, shaft；During the sleeve is Void column shape, sleeve lateral surface are equipped with pin；The handle is two, is separately positioned on sleeve both sides, single handle shape is Cross break shape, handle front end are equipped with pin hole, and the pin on pin hole and sleeve that handle passes through its front end is rotatablely connected with sleeve, two Handle is symmetrical arranged on sleeve, " V " font torque spring is equipped on pin, " V " font torque spring both ends are made respectively With on two handles, handle rear end is folded to part and is equipped with rack, and the rack face on two handles is opposite；The shaft is interspersed in Be rotatablely connected with sleeve in sleeve, shaft is stretched out before and after sleeve, and pen module is cut in the connection of shaft front end, shaft rear end be equipped with unidirectionally from Clutch, one-way clutch peripheral surface are equipped with gear, which is meshed with the rack on two handles；

The pen module of cutting includes shell, knife rest, screw-on cutter, inside engaged gear group；One end of the shell and power plant module On sleeve be fixedly connected, the other end of shell is equipped with the jack being inserted into for pencil, and enclosure interior is equipped with knife rest, and knife rest lower section is set There is chip dust storage device；The knife rest is arranged in shell, and one end of knife rest is fixedly connected with the shaft on power plant module, knife rest The other end connect with housing into rotation, be axially arranged on knife rest for be inserted into pencil taper plane chamber, taper plane chamber with insert Hole is coaxial；The inclined setting of screw-on cutter is in taper planing chamber side, and one end of screw-on cutter is connect with blade holder turns, spiral shell The other end of rotation milling cutter is connected with inside engaged gear group；The inside engaged gear group includes internal gear and external gear, wherein interior Gear is fixedly connected with screw-on cutter, and external gear is fixed on shell.

Further, the handle cross section is "U" shaped, and handle front end "U" shaped opening is equipped with pin hole and buckle It is rotatablely connected with sleeve on sleeve lateral surface, and by the pin on its pin hole and sleeve, " V " the font torque spring It extend into handle "U" shaped slot.

Further, in order to increase the friction between hand and handle, anti-slip rubber layer is arranged in the handle outer surface.

Further, rack and pinion is separated in order to prevent, and the fastener being mutually clamped is arranged on described two racks.

Further, two handles further open in order to prevent, the protrusion that setting prevention fastener slides on the rack.

Further, the one-way clutch includes outer race and inside race, and the peripheral surface of the outer race is equipped with gear, The inner peripheral surface of outer race is equipped with ratchet slot, and the inside race movable set is in outer race inner cavity, on the peripheral surface of inside race Pawl slot is offered, is movably set in pawl slot and offers spring eye, bullet with the matched pawl of ratchet slot, the bottom of pawl Spring is provided in spring hole, spring is against on pawl, and the inner cavity of inside race is shaft mounting hole, is offered on the hole wall of mounting hole Keyway.

Further, the chip dust storage device is drawer structure.

Further, the case material is one kind in ABS, PP or PC plastic material.

Further, the chip dust storage device is perspex material.

The present invention the course of work be：Pencil is inserted into jack, pencil is held on the other hand, holds handle on the other hand；It is tight when holding When handle, two handles are gradually closed, and elastic deformation occurs for " V " font torque spring, and two racks move toward one another, due to Rack and pinion is meshed, and rack drives gear rotates forward, and gear drives outer race to rotate forward, effect of the pawl in spring Under be caught on outer race in corresponding ratchet slot, outer race drives inside race to rotate together, and inside race drives shaft rotation, shaft Band movable knife rack rotates in the forward direction, and knife rest drives screw-on cutter around taper planing cavity axis revolution, the internal gear on screw-on cutter with it is outer Gear is meshed, and drives screw-on cutter rotation, the revolution and rotation of screw-on cutter that screw-on cutter is made constantly to surround pencil rotation Cutting, the chip dust machined away fall into chip dust storage device；When hand unclamps handle, elastically-deformable " V " font torsion bullet occurs Spring restores, and two handles gradually open, and handle drives two racks to do back movement, since rack and pinion is meshed, rack Band moving gear rotates backward, and gear drives outer race to rotate backward, and the outer end of pawl is under the compressing of ratchet slot, pawl and ratchet Slot does not engage, and outer race idle running does not drive inside race；Hold with a firm grip again handle when will repeat above-mentioned phenomenon, power plant module band movable knife rack Always it is rotated to a direction, realizes the continuous cutting to pencil.

Present invention has the advantages that：1. pencil sharpener can work without supporting desktop, can use under various circumstances；② It only need to simply hold with a firm grip and unclamp handle, so that it may cutting of the realization to pencil, it is laborsaving time saving, rapidly and efficiently；3. coaxially being set with jack The taper planing chamber set, reduces the shaking that pencil is brought due to vibrations during the cutting process, effectively prevent disconnected core phenomenon Occur；4. using screw-on cutter segmentation cutting, cut better than traditional flat cutter head full wafer, since segmentation cutting is within the unit interval The area for cutting contact is small, therefore the resistance cut is small, frictional force is small, and the benefit brought is that heat caused by cutting is small, makes an uproar well Sound is small, cut volume easily, highly efficient durable, cutting surface are smoothly fine and smooth, the design of screw-on cutter, more conducively spread pen bits；5. shell material Material selects ABS, PP or PC plastic material, and durable, plasticity is good, and intensity is high, and surface is smooth, is unlikely to deform；6. chip dust is stored Device convenient for the working condition of observation pencil sharpener at any time and topples over chip dust using perspex material, be conducive to protect sharpener not by Damage；7. simple in structure, cost bottom is suitble to promote and apply；8. using one-way clutch technology, knife rest is only rotated to a direction, is filled Divide and effect of inertia is utilized, rotary speed is faster.

Description of the drawings

If Fig. 1 is overall structure of the present invention.

If Fig. 2 is " V " font torque spring structural schematic diagram of the invention.

As Fig. 3 be the present invention cut pen module internal structure schematic diagram.

If Fig. 4 is the wheel and rack structural schematic diagram of the present invention.

If Fig. 5 is the one-way clutch structural schematic diagram of the present invention.

Specific implementation mode

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, a kind of hand held pencil sharpener, it is characterized in that：The pencil sharpener includes power plant module 2 and cuts pen module 1；

As shown in Figure 1, Figure 2, Figure 4 shows, the power plant module 2, which is used for driving, cuts the rotation of pen module 1, and power plant module includes sleeve 8, holds 5, shaft 6；The sleeve 8 is hollow cylindrical, and 8 lateral surface of sleeve is equipped with pin 10；The handle 5 is two, is set respectively It sets in 8 both sides of sleeve, 5 shape of single handle is cross break shape, and 5 front end of handle is equipped with pin hole 9, the pin hole 9 that handle 5 passes through its front end It is rotatablely connected with sleeve 8 with the pin 10 on sleeve 8, two handles 5 are symmetrical arranged on sleeve 8, and " V " is equipped on pin 10 Font torque spring 7,7 both ends of " V " font torque spring are respectively acting on two handles 5, and 5 rear end of handle is folded to part and sets There are rack 3, the rack face on two handles 5 opposite；The shaft 6 is interspersed in sleeve 8 and is rotatablely connected with sleeve 8, and shaft 6 is stretched Go out before and after sleeve 8, pen module 1 is cut in the connection of 6 front end of shaft, and 6 rear end of shaft is equipped with one-way clutch, on one-way clutch peripheral surface Equipped with gear 4, which is meshed with the rack 3 on two handles 5；

As shown in Figure 1, Figure 3, the pen module 1 of cutting includes shell 16, knife rest 14, screw-on cutter 13, inside engaged gear group；It is described One end of shell 16 is fixedly connected with the sleeve 8 on power plant module 2, and the other end of shell 16 is equipped with the jack being inserted into for pencil 17, shell 16 is internally provided with knife rest 14, and 14 lower section of knife rest is equipped with chip dust storage device 15；The knife rest 14 is arranged in shell 16 Interior, one end of knife rest 14 is fixedly connected with the shaft 6 on power plant module 2, and the other end and the shell 16 of knife rest 14 are rotatablely connected, knife The taper planing chamber 18 for being inserted into pencil is axially arranged on frame 14, taper planing chamber 18 and jack 17 are coaxial；The helical milling The inclined setting of knife 13 is rotatablely connected in 18 side of taper planing chamber, one end and the knife rest 14 of screw-on cutter 13, screw-on cutter 13 The other end be connected with inside engaged gear group；The inside engaged gear group includes internal gear 12 and external gear 11, wherein internal tooth Wheel 12 is fixedly connected with screw-on cutter 13, and external gear 11 is fixed on housing 16.

As shown in Figure 1, further, 5 cross section of the handle is "U" shaped, 5 front end "U" shaped opening of handle is set There is pin hole 9 and be buckled on 8 lateral surface of sleeve, and is rotatablely connected with sleeve 8 by the pin 10 on its pin hole 9 and sleeve 8, institute " V " font torque spring 7 is stated to extend into 5 "U" shaped slot of handle.

Further, in order to increase the friction between hand and handle 5, anti-slip rubber layer is arranged in 5 outer surface of the handle.

As shown in figure 4, further, rack 3 is separated with gear 4 in order to prevent, mutually card is set on described two racks 3 The fastener 28 of conjunction.

As shown in figure 4, further, two handles 5 further open in order to prevent, setting prevention fastener on the rack 3 The protrusion 29 of 28 slidings.

As shown in figure 5, further, the one-way clutch includes outer race 19 and inside race 26, the outer race 19 Peripheral surface is equipped with gear 4, and the inner peripheral surface of outer race 19 is equipped with ratchet slot 20, and 26 movable set of the inside race is in outer race In 19 inner cavities, pawl slot 25 is offered on the peripheral surface of inside race 26, is movably set in pawl slot 25 and is matched with ratchet slot 25 The bottom of the pawl 24 of conjunction, pawl 24 offers spring eye 22, and spring 23 is provided in spring eye 22, and spring 23 is against pawl 24 On, the inner cavity of inside race 26 is 6 mounting hole 27 of shaft, and keyway 21 is offered on the hole wall of mounting hole 27.

Further, the chip dust storage device 15 is drawer structure.

Further, 16 material of the shell is one kind in ABS, PP or PC plastic material.

Further, the chip dust storage device 15 is perspex material.

The present invention the course of work be：Pencil is inserted into jack 17, pencil is held on the other hand, holds handle 5 on the other hand；Work as hand Hold with a firm grip handle 5 when, two handles 5 are gradually closed, and elastic deformation occurs for " V " font torque spring 7, and two racks 3 do opposite fortune Dynamic, since rack 3 is meshed with gear 4, rack 3 is rotated forward with moving gear 4, and gear 4 drives outer race 19 to rotate forward, Pawl 24 is caught under the action of spring 23 on outer race 19 in corresponding ratchet slot 20, and outer race 19 drives inside race 26 together Rotation, inside race 26 drive shaft 6 to rotate, and shaft 6 is rotated in the forward direction with movable knife rack 14, and knife rest 14 drives screw-on cutter 13 around taper 18 axis of chamber of planing revolves round the sun, and the internal gear 12 on screw-on cutter 13 is meshed with external gear 11, drives 13 rotation of screw-on cutter, spiral shell Revolving the revolution of milling cutter 13 and rotation makes screw-on cutter 13 constantly surround pencil rotation cutting, and the chip dust machined away falls into chip dust receipts Receive device 15；When hand unclamps handle 5, elastically-deformable " V " font torque spring 7 occurs and restores, two handles 5 are gradually opened It opens, handle 5 drives two racks 3 to do back movement, and since rack 3 is meshed with gear 4, rack 3 reversely turns with moving gear 4 Dynamic, gear 4 drives outer race 19 to rotate backward, and the outer end of pawl 24 is under the compressing of ratchet slot 20, pawl 24 and ratchet slot 20 It does not engage, the idle running of outer race 19 does not drive inside race 26；Hold with a firm grip again handle 5 when will repeat above-mentioned phenomenon, power plant module 2 drives Knife rest 14 is rotated to a direction always, realizes the continuous cutting to pencil.

Claims

1. a kind of hand held pencil sharpener, it is characterized in that：The pencil sharpener includes power plant module and cuts pen module；

2. a kind of hand held pencil sharpener according to claim 1, it is characterized in that：The handle cross section is "U" shaped, is held Front end "U" shaped opening is equipped with and pin hole and is buckled on sleeve lateral surface, and by pin on its pin hole and sleeve with Sleeve is rotatablely connected, and " V " the font torque spring is extend into handle "U" shaped slot.

3. a kind of hand held pencil sharpener according to claim 1, it is characterized in that：Anti-slip rubber is arranged in the handle outer surface Layer.

4. a kind of hand held pencil sharpener according to claim 1, it is characterized in that：Setting is mutually clamped on described two racks Fastener.

5. a kind of hand held pencil sharpener according to claim 1, it is characterized in that：Setting prevents fastener from sliding on the rack Protrusion.

6. a kind of hand held pencil sharpener according to claim 1, it is characterized in that：The one-way clutch includes outer race and interior The peripheral surface of seat ring, the outer race is equipped with gear, and the inner peripheral surface of outer race is equipped with ratchet slot, the inside race movable sleeve In outer race inner cavity, pawl slot is offered on the peripheral surface of inside race, is movably set in pawl slot and is matched with ratchet slot The bottom of the pawl of conjunction, pawl offers spring eye, and spring is provided in spring eye, and spring is against on pawl, inside race it is interior Chamber is shaft mounting hole, and keyway is offered on the hole wall of mounting hole.

7. a kind of hand held pencil sharpener according to claim 1, it is characterized in that：The chip dust storage device is drawer structure.

8. a kind of hand held pencil sharpener according to claim 1, it is characterized in that：The case material is moulded for ABS, PP or PC One kind in collagen material.

9. a kind of hand held pencil sharpener according to claim 1, it is characterized in that：The chip dust storage device is perspex material Matter.