CN105459701B

CN105459701B - The pencil sharpener of Adjustable device

Info

Publication number: CN105459701B
Application number: CN201510995634.XA
Authority: CN
Inventors: 周庆芬
Original assignee: Ningbo Polygala Cubic Energy Technology Co Ltd
Current assignee: Zhou Qingfen
Priority date: 2015-12-26
Filing date: 2015-12-26
Publication date: 2017-07-07
Anticipated expiration: 2035-12-26
Also published as: CN105459701A

Abstract

The invention discloses a kind of pencil sharpener of Adjustable device, it includes：Housing, it includes the first space for communicating of part and second space, and the side surface of housing is provided with the second through hole of class E shapes, it include a vertical portion and with four horizontal components of the vertical portion insertion, formation four shift slots from top to bottom；Transmission mechanism, it includes pressing lever, first gear group, jacket casing, compression spring；Follower, it includes rotating shaft, fix bar, the 4th toothed disc, the first bevel gear, the second bevel gear；Cutting mechanism, it includes knife rest and milling cutter；Jin Bi mechanisms, it includes Part I, Part II, flexible member；Bits collecting box, its bottom for being removably arranged on the second space.The present invention can drive cutting mechanism around the rotation of pencil by compression spring accumulation of energy using the reaction force of compression spring, so that cutwork is completed, with environmental protection, the quick advantage of energy-conservation.

Description

The pencil sharpener of Adjustable device

Technical field

The present invention relates to a kind of pencil sharpener.It is more particularly related to a kind of pencil sharpener of Adjustable device.

Background technology

Pencil is the instrument of the purposes such as writing, keep record, accompanies society to pass by ages of many, according to pencil not Same purposes, the material requirement to pencil is different, and the timber used of the penholder of pencil is also different, Gu the dynamics needed for pencil cutting Difference, such as relatively soft timber, the dynamics of cutting requires low, more solid timber, and required cutting dynamics is big.Now with cutting The pencil sharpener of pencil is divided into hand-rail type and electrodynamic type, and hand-cranked pencil sharpener shakes the dynamic cutting mechanism of grip strip generally by manipulator Rotated around pencil, the cutwork of pencil is finally completed, in whole process, although being capable of manual control cutting dynamics completion The cutting of different pencils, but user must continuously rotate rocking handle, and once stopping, cutting mechanism can also stop cutwork, take When it is laborious；Electrodynamic type pencil sharpener needs motor to drive Tool in Cutting, can continue to cut under the drive of battery equal energy source, saves Power, but existing electromotive force pencil sharpener needs consumption electricity not environmentally, and the dynamics of cutting is non-adjustable, use for a long time can be damaged The edge of a knife of bad cutting, reduces the service life of cutting mechanism, it is impossible to meet the cutting of different type pencil.

Therefore, need badly one kind need not continuation rotating operation, environmental protection is time saving and energy saving, and cutting dynamics is adjustable, extension The pencil sharpener of cutting mechanism service life.

The content of the invention

It is an object of the invention to solve at least the above, and provide the advantage that at least will be described later.

It is a still further object of the present invention to provide a kind of pencil sharpener of Adjustable device, it can be downward by pressing lever applying one Power accumulation of energy, using the reaction force of compression spring to drive moving up for pressing lever, thus drive first gear group turn It is dynamic, the final rotation for driving cutting mechanism, by adjust the toothed disc of the different numbers of teeth in first gear group and follower the The regulation to cutting mechanism rotating speed is realized in the engagement of four toothed discs, so as to the dynamics according to the regulation cutting of the pencil of unlike material, Abrasion of the pencil to cutting knife-edge in working angles is reduced, the service life of cutting mechanism is extended, the present invention has green ring Protect, the quick advantage of energy-conservation.

In order to realize these purposes of the invention and further advantage, there is provided a kind of pencil sharpener of Adjustable device, its bag Include：

Housing, it is hollow rectangular structure, and the housing central section is provided with vertical dividing plate, and the dividing plate is by the shell Body is divided into left and right two spaces, respectively the first space and second space, and the dividing plate middle part is provided with first through hole so that described First space and the second space part communicate, the housing positioned at first space and relative with the dividing plate One side surface is provided with the second through hole of class E shapes, second through hole include a vertical portion and with the vertical portion Four horizontal components of insertion, form four shift slots from top to bottom, respectively the first shift slot, the second shift slot, the 3rd Shift slot and fourth gear position groove；

Transmission mechanism, it is arranged in first space, and the transmission mechanism includes the pressing lever being vertically arranged, is arranged First gear group outside the pressing lever and first gear group following table spherical bearing connection and be set in the pressing Jacket casing outside bar and the compression spring being vertically arranged being fixedly connected with the pressing lever lower end, the first gear group Rotated with the pressing lever and be connected, to realize that moving up and down for the pressing lever drives the first gear group in the horizontal direction Rotation, the first gear group include it is isodiametric from top to bottom and gear ratio be 2:5:10 first gear disk, the second tooth Wheel disc and the 3rd toothed disc, the lower end of the compression spring are fixedly connected with the bottom of the housing, and the jacket casing is provided with edge The gear shift bar that horizontal direction extends, the free end of the gear shift bar passes the housing, the gear shift by second through hole Bar can be moved up and down to drive the jacket casing to move up and down in second through hole, and can be contained in any one shift slot Realize to the jacket casing and the positioning of the first gear group；

Follower, it is arranged in the second space, and the follower includes that the rotating shaft being vertically arranged, level set The fix bar put, fixation are set in the 4th toothed disc outside the rotating shaft, fixation and are set in the rotating shaft outside and positioned at institute Horizontally disposed first bevel gear for stating the 4th toothed disc top, the second bevel gear being set in outside the fix bar, it is described 4th toothed disc can be engaged with any one toothed disc in the first gear group, to realize the rotational band of the first gear group The rotation of the 4th toothed disc and the rotating shaft is moved, second bevel gear is rotated with the fix bar and is connected, described second Bevel gear is engaged with first bevel gear and the axis horizontal of second bevel gear is set；

Wherein, the edge of the first gear disk, the second gear disk, the 3rd toothed disc and the 4th toothed disc The height of axial direction is 0.5cm, and the height vertically of four shift slots is 0.6cm, the gear shift bar it is straight Footpath is 0.5cm, and the horizontal center line of the gear shift bar is 2cm, the described 4th with the difference in height of the first gear group lower surface Toothed disc lower surface is flushed with the horizontal center line of first shift slot, two adjacent horizontal center lines of the shift slot Spacing be 2cm, the axial spacing of two toothed discs adjacent in the first gear group is 2cm；So that the gear shift bar position When in first shift slot, the first gear group is not engaged with the 4th toothed disc；Positioned at second shift slot When middle, the first gear disk is engaged with the 4th toothed disc；When in the groove of third gear position, the second gear disk Engaged with the 4th toothed disc；When in the groove of fourth gear position, the 3rd toothed disc is nibbled with the 4th toothed disc Close；

Cutting mechanism, it is arranged in the second space, and it includes the knife rest being fixedly connected with second bevel gear And inclined with horizontal direction and the milling cutter that is installed on the knife rest, the milling cutter is formed with for accommodating with the knife rest bottom The coniform pen-laying hole of pencil point, the axis of the pen-laying hole overlaps with the axis of second bevel gear；

Jin Bi mechanisms, it includes axis horizontal, the Part I of the hollow cylindrical of left and right setting and hollow cylindrical Part II, the stretchable flexible member being connected between the Part I and the Part II, the Part II End connected with the pen-laying hole so that pencil point through the Jin Bi mechanisms enter the pen-laying hole, described first Held with the side-wall shaft of the housing and be connected in the end divided；

Bits collecting box, its bottom for being removably arranged on the second space.

Preferably, the pencil sharpener of described Adjustable device, the outside of the compression spring is arranged with the cylinder being vertically arranged, The lower end of the cylinder is fixedly connected with the bottom of the housing, and the upper end of the cylinder is slidably connected with the jacket casing.

Preferably, the pencil sharpener of described Adjustable device, the pressing lever outside is provided with the first helical gear, described first Gear train is provided with the second helical gear engaged with first helical gear with the pressing lever contact site, to realize described first Gear train is connected with the rotation of the pressing lever.

Preferably, the pencil sharpener of described Adjustable device, the lower end of the rotating shaft is rotatably connected on the bottom of the housing.

Preferably, the pencil sharpener of described Adjustable device, one end away from the knife rest of the fix bar and the shell The side wall of body is fixedly connected.

Preferably, the pencil sharpener of described Adjustable device, the upper end of the pressing lever passes the upper surface of the housing simultaneously Form pressing handle.

Preferably, the pencil sharpener of described Adjustable device, the 4th toothed disc is with second bevel gear vertically Difference in height be 9cm.

Preferably, the pencil sharpener of described Adjustable device, the inside of the Part II is provided with the fastening part for clamping pencil Part.

The present invention at least includes following beneficial effect：

Firstth, the present invention applies downward force compresses compression spring by pressing lever, using compression spring come accumulation of energy, pressure The reaction force of contracting spring drives moving up for pressing lever, the rotation of first gear group is further driven to, so as to drive cutting Mechanism is finally completed the cutwork of pencil around the rotation of pencil, while devising first of the toothed disc with the different numbers of teeth Gear train is engaged with the 4th toothed disc in follower, adjusts the rotating speed of cutting mechanism, realizes the control to pencil cutting dynamics System, reduces abrasion of the pencil to cutting knife-edge in working angles, extends the service life of cutting mechanism；

Secondth, the housing of rectangular structure is divided into two spaces, the first through hole that dividing plate middle part opens up by dividing plate so that Two spaces part is connected, and the transmission of two spaces is completed by the first through hole reserved, while also avoiding the pencil sharper of cutting Fall into the first space；

3rd, downward power is applied to pressing lever and is converted into the elastic force of compression spring, realize accumulation of energy function, released to pressing The external force of depression bar, the upward elastic reactance of compression spring promotes moving up for pressing lever, because of pressing lever and first gear Group rotates connection, and pressing lever drives the rotation in the horizontal direction of first gear group during moving up, it is not necessary to continuation Applying external force, also can guarantee that first gear group drives the continuous rotation of cutting mechanism, it is time saving and energy saving so as to complete cutwork And environmental protection；

4th, moving up and down for jacket casing, regulation first gear group and the 4th gear are driven by the gear shift bar of hull outside The relative position of disk, when gear shift bar is moved upward in the first shift slot, first gear group is located at the top of the 4th toothed disc, As neutral, the position of the dynamics regulation gear shift bar cut according to needed for the material of pencil, the second gear is moved to by gear shift bar Groove or third gear position groove or fourth gear position groove, when positioned at the second shift slot, the minimum first gear of the number of teeth in first gear group Disk is engaged with the 4th toothed disc, and now, the rotating speed of cutting mechanism is most slow, and the dynamics of cutting is maximum, as high gear；When positioned at the 3rd During shift slot, number of teeth second gear disk placed in the middle is engaged with the 4th toothed disc in second gear group, now, the rotating speed of cutting mechanism It is middling speed, the dynamics of cutting is moderate, as middle gear；When positioned at fourth gear position groove, the number of teeth is most in first gear group the Three toothed discs are engaged with the 4th toothed disc, and now, the rotating speed of cutting mechanism is most fast, and the dynamics of cutting is minimum, as low gear；It is complete Into after gear shift, pressing lever is depressed into lower position with hand, pencil to be cut is put into Jin Bi mechanisms, then unclamped to pressing The hand of bar pressure, you can start cutwork, fast and easy；

5th, in working angles, the rotation of cutting mechanism can drive the slight rotation of pencil, and flexible member has certain drawing The elasticity stretched, one side pencil can be moved horizontally towards the direction of cutting mechanism, on the other hand play a part of overhead, be reduced The rotation of pencil, it is ensured that cutwork is normally carried out, the design structure of Jin Bi mechanisms is simple, economical and practical；

6th, the cylinder being vertically arranged is arranged outside compression spring, firm effect is played to compression spring, it is to avoid compression bullet Spring push and upper shifting during inclination；

7th, the second helical gear engagement on the first helical gear and first gear group on pressing lever outer wall so that pressing Moving up and down for bar can drive the first gear group to rotate in the horizontal direction；

Eight, the 4th toothed discs are 9cm with the difference in height of second bevel gear so that in neutral, low gear, middle gear and height During gear, the second bevel gear will not be contacted with first gear group；

9th, the axis of pen-laying hole overlaps with the axis of the second bevel gear, it is ensured that the second bevel gear drives cutting mechanism In rotation process, milling cutter is the axis rotation around pencil all the time.

Further advantage of the invention, target and feature embody part by following explanation, and part will also be by this The research and practice of invention and be understood by the person skilled in the art.

Brief description of the drawings

Fig. 1 is the internal structure schematic diagram of the pencil sharpener of Adjustable device of the present invention；

Fig. 2 is the structural representation of the pencil sharpener of Adjustable device of the present invention；

Fig. 3 is the structural representation of Jin Bi mechanisms of the present invention；

Fig. 4 is the structural representation of the second through hole of the present invention.

Specific embodiment

The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text Word can be implemented according to this.

It should be appreciated that it is used herein such as " have ", "comprising" and " including " term do not allot one or many The presence or addition of individual other elements or its combination.

As shown in figures 1-4, the present invention provides a kind of pencil sharpener of Adjustable device, and it includes：

Housing, it is hollow rectangular structure, and the housing central section is provided with vertical dividing plate, and the dividing plate is by the shell Body is divided into left and right two spaces, respectively the first space 1 and second space 2, and the dividing plate middle part is provided with first through hole so that institute The first space 1 and the part of the second space 2 is stated to communicate, the housing positioned at first space 1 and with the dividing plate A relative side surface is provided with the second through hole 19 of class E shapes, as shown in figure 4, second through hole 19 includes a vertical portion Point and with four horizontal components of the vertical portion insertion, respectively formation four shift slots from top to bottom, first gear Position groove, the second shift slot, third gear position groove and fourth gear position groove；

Transmission mechanism, it is arranged in first space 1, and the transmission mechanism includes the pressing lever 3, the set that are vertically arranged Be located at outside the pressing lever 3 the connection of first gear group 4 and the following table spherical bearing of the first gear group 4 and it is set in institute The jacket casing 5 outside pressing lever 3 and the compression spring 6 being vertically arranged being fixedly connected with the lower end of the pressing lever 3 are stated, it is described First gear group 4 is rotated with the pressing lever 3 and is connected, to realize that moving up and down for the pressing lever 3 drives the first gear Group 4 rotation in the horizontal direction, the first gear group 4 include it is isodiametric from top to bottom and gear ratio be 2:5:The of 10 One toothed disc, second gear disk and the 3rd toothed disc, the lower end of the compression spring 6 are fixedly connected with the bottom of the housing, The jacket casing 5 is provided with horizontally extending gear shift bar 8, and the free end of the gear shift bar 8 passes through second through hole 19 The housing is passed, the gear shift bar 8 can be moved up and down in second through hole 19 to drive the jacket casing 5 to move up and down, And the positioning realized to the jacket casing 5 and the first gear group 4 can be contained in any one shift slot；

Follower, it is arranged in the second space 2, and the follower includes the rotating shaft 10, water being vertically arranged The flat fix bar 13 for setting, fixed the 4th toothed disc 11 being set in outside the rotating shaft 10, fixation are set in the rotating shaft 10 Outside is simultaneously located at horizontally disposed first bevel gear 12 on the top of the 4th toothed disc 11, is set in outside the fix bar 13 The second bevel gear 14, the 4th toothed disc 11 can be engaged with any one toothed disc in the first gear group 4, with reality The rotation of the existing first gear group 4 drives the rotation of the 4th toothed disc 11 and the rotating shaft 10, second bevel gear 14 are connected with the rotation of the fix bar 13, and second bevel gear 14 is engaged and the second umbrella tooth with first bevel gear 12 The axis horizontal of wheel 14 is set；

Wherein, the first gear disk, the second gear disk, the 3rd toothed disc and the 4th toothed disc 11 Height vertically is 0.5cm, and the height vertically of four shift slots is 0.6cm, the gear shift bar 8 A diameter of 0.5cm, the horizontal center line of the gear shift bar 8 is 2cm with the difference in height of the lower surface of first gear group 4, described The lower surface of 4th toothed disc 11 is flushed with the horizontal center line of first shift slot, two adjacent levels of the shift slot The spacing of center line is 2cm, and the axial spacing of two toothed discs adjacent in the first gear group 4 is 2cm；So that the tune When pin 8 is in first shift slot, the first gear group 4 is not engaged with the 4th toothed disc 11；Positioned at described When in the second shift slot, the first gear disk is engaged with the 4th toothed disc 11；When in the groove of third gear position, institute Second gear disk is stated to be engaged with the 4th toothed disc 11；When in the groove of fourth gear position, the 3rd toothed disc and institute The 4th toothed disc 11 is stated to engage；

Cutting mechanism, it is arranged in the second space 2, and it includes the knife being fixedly connected with second bevel gear 14 Frame 15 and the milling cutter 16 for being inclined with horizontal direction and being installed on the knife rest 15, the milling cutter 16 and the bottom shape of the knife rest 15 Into the coniform pen-laying hole 17 having for accommodating pencil point, the axis of the pen-laying hole 17 and second bevel gear 14 Axis overlaps；

Jin Bi mechanisms 18, it includes the Part I 20 and hollow circuit cylinder of the hollow cylindrical that axis horizontal, left and right are set The Part II 21 of shape, the stretchable flexible member 22 being connected between the Part I 20 and the Part II 21, The end of the Part II 21 connects with the pen-laying hole 17 so that pencil point enters described through the Jin Bi mechanisms 18 Held with the side-wall shaft of the housing and be connected in pen-laying hole 17, the end of the Part I 20；

Bits collecting box, its bottom for being removably arranged on the second space 2.

In the above-mentioned technical solutions, before cutwork, gear shift bar 8 is located at the first shift slot, first gear group 4 and the Four toothed discs 11 are not engaged, according to the material for sharpening a pencil to be cut, it is determined that required cutting dynamics size, adjusts gear shift bar 8 Position, the great efforts for such as needing, the second shift slot is moved to by gear shift bar 8, and jacket casing 5 moves down drive first with the movement of gear shift bar 8 Gear train 4 is moved down so that the minimum first gear disk of the number of teeth and the 4th toothed disc 11 are engaged in first gear group 4, cutting mechanism Rotating speed it is most slow, the dynamics of cutting is maximum, is now high gear；Dynamics as needed is placed in the middle, and gear shift bar 8 is moved into third gear position Groove, jacket casing 5 moves down drive first gear group 4 and moves down with the movement of gear shift bar 8 so that the number of teeth is placed in the middle in first gear group 4 the Two toothed discs and the 4th toothed disc 11 are engaged, and the rotating speed of cutting mechanism is middling speed, and the dynamics of cutting is moderate, is now middle gear； Dynamics as needed is small, and gear shift bar 8 is moved into fourth gear position groove, and jacket casing 5 moves down drive first gear group with the movement of gear shift bar 8 4 are moved down so that the 3rd most toothed disc of the number of teeth and the 4th toothed disc 11 are engaged in first gear group 4, the rotating speed of cutting mechanism For most soon, the dynamics of cutting is minimum, is now low gear.

After the completion of gear shift, pressing lever 3 is depressed into lower position with hand, by pencil insertion Jin Bi mechanisms 18 to be cut, Then the hand of pressing is unclamped, pressing lever 3 is moved up under the drive of the upward elastic acting force of compression spring 6, is driven and is pressed The first gear group 4 that depression bar 3 rotates connection is rotated, and the rotation of first gear group 4 drives follower to rotate, so as to drive cutting Rotation of the mechanism around pencil, you can start cutwork.

The Part II 21 of Jin Bi mechanisms 18 is connected with pen-laying hole 17 so that the nib of pencil enters through Jin Bi mechanisms 18 Pen-laying hole 17, the rotation of cutting mechanism can drive the slight rotation of pencil, and flexible member 22 has the elasticity of certain stretching, one Aspect can drive pencil to be moved towards the direction of cutting mechanism, on the other hand play a part of overhead, reduce what pencil was rotated Speed, it is ensured that cutwork is normally carried out, and Jin Bi mechanisms 18 design simply, economical and practical.

After the completion of work to be cut, pencil is taken out, the restoring force of flexible member 22 drives the second of Jin Bi mechanisms 18 It is in nature elongation state that part 21 is playbacked to it, gear shift bar 8 then is moved into the first shift slot, now first gear group 4 In the top of the 4th toothed disc 11 and do not engage, the hand to the pressing of pressing lever 3 is unclamped, under the reaction of compression spring 6 Pressing lever 3 is moved upward to compression spring 6 and recovers in nature elongation state, removes the bits collecting box of the bottom of second space 2, cleaning collection Pencil chip in bits box.

In another technical scheme, the pencil sharpener of described Adjustable device, the outside of the compression spring 6 is arranged with vertically The cylinder 7 of setting, the lower end of the cylinder 7 is fixedly connected with the bottom of the housing, the upper end of the cylinder 7 and the jacket casing 5 are slidably connected, and cylinder 7 plays firm effect to compression spring 6, it is to avoid compression spring 6 push and upper shifting during inclination.

In another technical scheme, the pencil sharpener of described Adjustable device, the outside of the pressing lever 3 is provided with the first helical teeth Wheel, the first gear group 4 is provided with the second helical gear engaged with first helical gear with the contact site of the pressing lever 3, To realize that the first gear group 4 is connected with the rotation of the pressing lever 3.

In another technical scheme, the pencil sharpener of described Adjustable device, the lower end of the rotating shaft 10 is rotatably connected on institute State the bottom of housing.

In another technical scheme, the pencil sharpener of described Adjustable device, the fix bar 13 away from the knife rest 15 One end be fixedly connected with the side wall of the housing.

In another technical scheme, the pencil sharpener of described Adjustable device, the upper end of the pressing lever 3 passes the housing Upper surface and form pressing handle 9, convenient operation.

In another technical scheme, the pencil sharpener of described Adjustable device, the 4th toothed disc 11 and second umbrella The difference in height vertically of gear 14 is 9cm so that in neutral, low gear, middle gear and high gear, and the second bevel gear 14 will not be with First gear group 4 is contacted.

In another technical scheme, the inside of the Part II 21 is provided with the secure component for clamping pencil, plays right The fixation of pencil.

Although embodiment of the present invention is disclosed as above, it is not restricted to listed in specification and implementation method With, it can be applied to various suitable the field of the invention completely, for those skilled in the art, can be easily Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited In specific details and shown here as the legend with description.

Claims

1. a kind of pencil sharpener of Adjustable device, it is characterised in that including：

Housing, it is hollow rectangular structure, and the housing central section is provided with vertical dividing plate, and the dividing plate divides the housing It is left and right two spaces, respectively the first space and second space, the dividing plate middle part are provided with first through hole so that described first Space and the second space part communicate, the housing positioned at first space and relative with dividing plate side Surface is provided with the second through hole of class E shapes, second through hole include a vertical portion and with the vertical portion insertion Four horizontal components, form four shift slots from top to bottom, respectively the first shift slot, the second shift slot, third gear position Groove and fourth gear position groove；

Transmission mechanism, it is arranged in first space, and the transmission mechanism includes the pressing lever being vertically arranged, is set in institute State the first gear group outside pressing lever and the first gear group following table spherical bearing connection and be set in outside the pressing lever The jacket casing in portion and the compression spring being vertically arranged being fixedly connected with the pressing lever lower end, the first gear group and institute State pressing lever and rotate connection, to realize that moving up and down for the pressing lever drives the first gear group turning in the horizontal direction It is dynamic, the first gear group include it is isodiametric from top to bottom and gear ratio is 2:5:10 first gear disk, second gear disk With the 3rd toothed disc, the lower end of the compression spring is fixedly connected with the bottom of the housing, and the jacket casing is provided with along level The gear shift bar that direction extends, the free end of the gear shift bar passes the housing by second through hole, and the gear shift bar can Moved up and down in second through hole to drive the jacket casing to move up and down, and realization in any one shift slot can be contained in To the jacket casing and the positioning of the first gear group；

Follower, it is arranged in the second space, and the follower includes the rotating shaft, horizontally disposed being vertically arranged Fix bar, fixation are set in the 4th toothed disc outside the rotating shaft, fixation and are set in the rotating shaft outside and positioned at described the Horizontally disposed first bevel gear on four toothed disc tops, the second bevel gear being set in outside the fix bar, the described 4th Toothed disc can be engaged with any one toothed disc in the first gear group, and institute is driven with the rotation for realizing the first gear group The rotation of the 4th toothed disc and the rotating shaft is stated, second bevel gear is rotated with the fix bar and is connected, the second umbrella tooth Wheel is engaged with first bevel gear and the axis horizontal of second bevel gear is set；

Wherein, the first gear disk, the second gear disk, the 3rd toothed disc and the 4th toothed disc be vertically Height be 0.5cm, the height vertically of four shift slots is 0.6cm, the gear shift bar it is a diameter of 0.5cm, the horizontal center line of the gear shift bar is 2cm, the 4th gear with the difference in height of the first gear group lower surface Disk lower surface is flushed with the horizontal center line of first shift slot, between two adjacent horizontal center lines of the shift slot Away from being 2cm, the axial spacing of two toothed discs adjacent in the first gear group is 2cm；So that the gear shift bar is located at institute When stating in the first shift slot, the first gear group is not engaged with the 4th toothed disc；When in second shift slot, The first gear disk is engaged with the 4th toothed disc；When in the groove of third gear position, the second gear disk and institute State the engagement of the 4th toothed disc；When in the groove of fourth gear position, the 3rd toothed disc is engaged with the 4th toothed disc；

Cutting mechanism, it is arranged in the second space, it include the knife rest being fixedly connected with second bevel gear and with The milling cutter that horizontal direction is inclined and is installed on the knife rest, the milling cutter is formed with for accommodating pencil with the knife rest bottom The coniform pen-laying hole of nib, the axis of the pen-laying hole overlaps with the axis of second bevel gear；

Jin Bi mechanisms, it includes the second of the Part I of the hollow cylindrical that axis horizontal, left and right are set and hollow cylindrical Partly, the stretchable flexible member between the Part I and the Part II, the end of the Part II are connected to Portion connects with the pen-laying hole so that pencil point enters the pen-laying hole through the Jin Bi mechanisms, the Part I Held with the side-wall shaft of the housing and be connected in end；

2. the pencil sharpener of Adjustable device as claimed in claim 1, it is characterised in that the outside of the compression spring is arranged with vertically The cylinder of setting, the lower end of the cylinder is fixedly connected with the bottom of the housing, and the upper end of the cylinder is slided with the jacket casing Dynamic connection.

3. the pencil sharpener of Adjustable device as claimed in claim 2, it is characterised in that the pressing lever outside is provided with the first helical teeth Wheel, the first gear group is provided with the second helical gear engaged with first helical gear with the pressing lever contact site, with Realize that the first gear group is connected with the rotation of the pressing lever.

4. the pencil sharpener of Adjustable device as claimed in claim 3, it is characterised in that the lower end of the rotating shaft is rotatably connected on described The bottom of housing.

5. the pencil sharpener of Adjustable device as claimed in claim 4, it is characterised in that the fix bar away from the one of the knife rest End is fixedly connected with the side wall of the housing.

6. the pencil sharpener of Adjustable device as claimed in claim 5, it is characterised in that the upper end of the pressing lever passes the housing Upper surface and form pressing handle.

7. the pencil sharpener of Adjustable device as claimed in claim 6, it is characterised in that the 4th toothed disc and the second umbrella tooth The difference in height vertically of wheel is 9cm.

8. the pencil sharpener of Adjustable device as claimed in claim 7, it is characterised in that the inside of the Part II is provided with clamping lead The secure component of pen.