CN109334316B - Pressing telescopic pencil sharpener and working method thereof - Google Patents
Pressing telescopic pencil sharpener and working method thereof Download PDFInfo
- Publication number
- CN109334316B CN109334316B CN201811208181.1A CN201811208181A CN109334316B CN 109334316 B CN109334316 B CN 109334316B CN 201811208181 A CN201811208181 A CN 201811208181A CN 109334316 B CN109334316 B CN 109334316B
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- Prior art keywords
- pencil
- outer sleeve
- chip removal
- groove
- lifting
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000003825 pressing Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims abstract description 48
- 239000002023 wood Substances 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L23/00—Sharpeners for pencils or leads
- B43L23/08—Sharpeners for pencils or leads in which the pencils or leads are sharpened mainly by rotational movement against cutting blades
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- Drawing Aids And Blackboards (AREA)
- Knives (AREA)
Abstract
The invention relates to a pressing telescopic pencil sharpener and a working method thereof, which are characterized in that: the telescopic pencil sharpener comprises an outer sleeve and an upper protruding pipe column arranged at the bottom in the outer sleeve, wherein a thread groove is formed in the outer wall surface of the upper protruding pipe column, a lifting seat with an inner groove in the lower portion is sleeved on the periphery of the upper protruding pipe column, a protruding pin matched with the thread groove and moving spirally along the inner groove is arranged at the lower portion of the inner groove of the lifting seat, a return spring is arranged between the bottom of the inner bottom of the upper protruding pipe column and the upper bottom of the inner groove, an upper cutting blade for cutting the outer layer of pencil wood and a lower cutting blade for cutting the inner core of the pencil are arranged in a groove hole in the upper portion of the lifting seat, and. When the pressing telescopic pencil sharpener is used, a user only needs to hold a pencil with one hand and forcibly press the pencil downwards to realize the pencil sharpening action, and the pressing telescopic pencil sharpener is convenient to use and quick to cut.
Description
The technical field is as follows:
the invention relates to a pressing telescopic pencil sharpener and a working method thereof.
Background art:
at present, the pencil is usually cut by a knife or a pencil sharpener, and the pencil cutting process can be completed by two hands of a user, so that the use is inconvenient.
The invention content is as follows:
the invention aims to provide a pressing telescopic pencil sharpener and a working method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a pressing telescopic pencil sharpener, which is characterized in that: the pencil comprises an outer sleeve and an upper convex pipe column arranged at the bottom in the outer sleeve, wherein a thread groove is formed in the outer wall surface of the upper convex pipe column, a lifting seat with an inner groove in the lower part is sleeved on the periphery of the upper convex pipe column, a convex pin matched with the thread groove and moving spirally along the inner groove is arranged at the lower part of the inner groove of the lifting seat, a return spring is arranged between the bottom of the inner bottom of the upper convex pipe column and the upper part of the inner groove, an upper cutting blade for cutting the outer layer of pencil wood and a lower cutting blade for cutting the inner core of the pencil are arranged in a groove hole in the upper part of the lifting.
Further, the upper cutting blade is a spiral blade provided in the slot.
Further, the lower cutting blade is a straight blade provided in the slot.
Further, above-mentioned slotted hole includes cylindrical upper segment portion and conical lower segment portion, the spiral blade is established in cylindrical upper segment portion, and spiral blade protrusion in the wall of cylindrical upper segment portion, straight blade have two and evenly lay on conical lower segment portion.
Furthermore, the chip removal holes comprise an upper chip removal hole and a lower chip removal hole, the upper chip removal hole obliquely penetrates through the lifting seat along the groove hole, a chip removal window is arranged on the outer sleeve and is opposite to the outlet of the upper chip removal hole, and the lower chip removal hole penetrates through the upper bottom of the groove hole to the upper bottom of the inner groove of the lifting seat.
Furthermore, but above-mentioned outer sleeve top is equipped with lifting clamp plate, but four angles of lifting clamp plate are equipped with four slide bars, and four slide bars go up and down to slide in four channels on outer sleeve upper portion, but be equipped with the elasticity clamping that is used for pressing from both sides tight pencil on the lifting clamp plate.
Furthermore, the outer peripheral wall of the outer sleeve is frustum-shaped, the bottom of the outer sleeve is provided with an anti-slip rubber layer, the thread groove is a single thread groove, and the lead of the thread groove is 1-3 cm.
The invention relates to a working method of a pressing telescopic pencil sharpener, which is characterized in that: the push telescopic pencil sharpener comprises an outer sleeve and an upper protruding tubular column arranged at the inner bottom of the outer sleeve, wherein a thread groove is formed in the outer wall surface of the upper protruding tubular column, a lifting seat with an inner groove at the lower part is sleeved on the periphery of the upper protruding tubular column, a protruding pin which is matched with the thread groove and moves spirally along the thread groove is arranged at the lower part of the inner groove of the lifting seat, a return spring is arranged between the inner bottom of the upper protruding tubular column and the upper bottom of the inner groove, an upper cutting blade for cutting the outer layer of pencil wood and a lower cutting blade for cutting the inner core of the pencil are arranged in a groove hole at the upper part of the lifting seat, and; when the pencil sharpener works, a user holds one end of a pencil tightly, then the end needing to be sharpened extends into the slot hole, then the pencil is pressed forcibly from top to bottom, the downward pressure of the pencil drives the lifting seat to move from top to bottom along the spiral groove, the spiral movement of the lifting seat drives the upper cutting blade to sharpen the outer wood layer of the pencil, the lower cutting blade is driven to cut the inner core of the pencil, and chips are discharged from the chip removal hole after being cut.
Furthermore, but above-mentioned outer sleeve top is equipped with lifting splint, four angles of lifting splint are equipped with four slide bars, and four slide bars go up and down to slide in four channels on outer sleeve upper portion, but be equipped with the elasticity clamping that is used for pressing from both sides tight pencil on the lifting splint, before user's top-down forcefully presses the pencil, carry out the centre gripping with the pencil by the elasticity clamping to reduce the rotation of pencil.
When the pressing telescopic pencil sharpener is used, a user only needs to hold a pencil with one hand and forcibly press the pencil downwards to realize the pencil sharpening action, and the pressing telescopic pencil sharpener is convenient to use and quick to cut.
Description of the drawings:
FIG. 1 is a schematic block diagram of one embodiment of the present invention;
FIG. 2 is a schematic block diagram of one embodiment of the present invention;
FIG. 3 is a profile view of the upper tubular collar;
FIG. 4 is a schematic cross-sectional view of one embodiment of the elevator base;
FIG. 5 is a schematic cross-sectional view of one embodiment of the elevator base;
FIG. 6 is a cross-sectional configuration of an embodiment of an outer sleeve;
FIG. 7 is a cross-sectional configuration of an embodiment of an outer sleeve;
fig. 8 is a cross-sectional view of a liftable clamp plate.
The specific implementation mode is as follows:
the push telescopic pencil sharpener comprises an outer sleeve 1 and an upper convex tubular column 2 arranged at the inner bottom of the outer sleeve 1, wherein the upper convex tubular column 2 can be formed by welding or direct plastic injection molding, a thread groove 3 is formed in the outer wall surface of the upper convex tubular column 2, a lifting seat 5 with an inner groove 4 at the lower part is sleeved on the periphery of the upper convex tubular column 2, a convex pin 6 which is matched with the thread groove and moves along the thread groove is arranged at the lower part of the inner groove 4 of the lifting seat 5, of course, the convex pin 6 can also adopt a thread 61 matched with the thread groove, as long as the lifting seat 5 can generate spiral rotation and lifting motion under the action of downward or upward action of a return spring, a return spring 7 is arranged between the inner bottom of the upper convex tubular column 2 and the upper bottom of the inner groove 4, the return spring 7 has the effect of having upward restoring force after compression, and an upper cutting blade 8 for cutting the outer layer of pencil wood and a lower cutting blade for cutting the inner core And 9, a chip removal hole 10 is formed in the lifting seat body.
In one embodiment, the upper cutting blade is a spiral blade arranged in the slotted hole for cutting the outer layer of the wood of the pencil, the spiral blade can be a whole continuous spiral blade or a partial section blade of the spiral, and the spiral blade can reduce the cutting resistance and the cutting stroke.
In one embodiment, the lower cutting blade is a straight blade disposed in the slot, and the straight blade may have two blades, and the two exposed blades form an included angle of 30-60 degrees.
In one embodiment, the slot 11 includes a cylindrical upper section 1101 and a conical lower section 1102, the helical blade (upper cutting blade 8) is disposed on the cylindrical upper section 1101, the helical blade protrudes out of the wall surface of the cylindrical upper section, and the straight blade has two pieces and is uniformly disposed on the conical lower section 1102. The helical blade (upper cutting blade 8) located on the cylindrical upper section 1101 is only a helical blade of one pitch.
In one embodiment, the chip removal holes comprise an upper chip removal hole 1001 and a lower chip removal hole 1002, the upper chip removal hole 1001 penetrates through the lifting seat along the groove hole 11 in an inclined manner, a chip removal window 12 is arranged on an outer sleeve and is opposite to an outlet of the upper chip removal hole, the projection of the chip removal window 12 on a vertical surface is circular, and the lower part of the chip removal window 12 is inclined as the upper chip removal hole 1001 so as to remove chips better; although the lifting seat 5 makes a spiral motion, the outlet of the chip removing hole is intermittently communicated with the chip removing window 12, because the outer peripheral wall of the lifting seat 5 is in clearance fit with the inner peripheral wall of the outer sleeve 1, chips cut on the outer layer of the pencil wood are not easy to fall into the lower part of the lifting seat 5 when the chips are not communicated, the lower chip removing hole 1002 penetrates from the bottom of the groove hole to the upper bottom of the groove in the lifting seat, and the lower chip removing hole 1002 is used for removing the chips of the pencil core to the lower part of the lifting seat 5 and can clean the chips of the pencil core at a certain time; alternatively, instead of the lower clearance hole 1002, the upper clearance hole 1001 is provided directly on the lower side of the conical lower section 1102, and a transparent chip pocket 18 may be provided on the outside of the chip ejection window 12.
An embodiment, for better restriction pencil rotates to avoid the user to grip the pine and take off and rotate along with the seat that goes up and down, above-mentioned outer sleeve top is equipped with liftable splint 13, four angles of liftable splint are equipped with four slide bars 14, and four slide bars 14 go up and down to slide in four channels 15 on outer sleeve 1 upper portion, be equipped with the elasticity clamping 16 that is used for pressing from both sides tight pencil on the liftable splint, and these four slide bars 14 upper ends are fixed on liftable splint 13, and the lower extreme can go up and down to slide in channel 15, and this elasticity clamping 16 is by two relative concave block 21 and the telescopic link 20 of connecting the concave block rear side, the spring 19 has been cup jointed on the telescopic link, and when these two relative concave block 21 was broken off with the fingers and thumb hard, can insert the.
In one embodiment, in order to improve the stability during operation, the outer peripheral wall of the outer sleeve is frustum-shaped, and the bottom of the outer sleeve is provided with an anti-slip rubber layer 17, and the thread groove is a single thread groove with a lead of 1-3 cm.
The working method of the invention comprises the following steps that the pressing telescopic pencil sharpener comprises an outer sleeve and an upper convex pipe column arranged at the inner bottom of the outer sleeve, a thread groove is arranged on the outer wall surface of the upper convex pipe column, a lifting seat with an inner groove at the lower part is sleeved on the periphery of the upper convex pipe column, a convex pin which is matched with the thread groove and moves spirally along the thread groove is arranged at the lower part of the inner groove of the lifting seat, a return spring is arranged between the inner bottom of the upper convex pipe column and the upper bottom of the inner groove, an upper cutting blade for cutting the outer layer of pencil wood and a lower cutting blade for cutting the inner core of the pencil are arranged in a groove hole body at the upper part of the lifting seat, and; when the pencil sharpener works, a user holds one end of a pencil K tightly, then the end needing to be cut extends into the slot hole, then the pencil is pressed forcefully from top to bottom, the downward pressure of the pencil drives the lifting seat to move from top to bottom along the spiral groove, the lifting seat moves spirally to drive the upper cutting blade to cut the outer wood layer of the pencil, the lower cutting blade is driven to cut the inner core of the pencil, and the cut chips are discharged from the chip removal hole.
Furthermore, but above-mentioned outer sleeve top is equipped with lifting splint, four angles of lifting splint are equipped with four slide bars, and four slide bars go up and down to slide in four channels on outer sleeve upper portion, but be equipped with the elasticity clamping that is used for pressing from both sides tight pencil on the lifting splint, before user's top-down forcefully presses the pencil, carry out the centre gripping with the pencil by the elasticity clamping to reduce the rotation of pencil.
When the pressing telescopic pencil sharpener is used, a user only needs to hold a pencil with one hand and forcibly press the pencil downwards to realize the pencil sharpening action, and the pressing telescopic pencil sharpener is convenient to use and quick to cut.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (2)
1. A pressing telescopic pencil sharpener is characterized in that: the pencil sharpener comprises an outer sleeve and an upper protruding tubular column arranged at the inner bottom of the outer sleeve, wherein a thread groove is formed in the outer wall surface of the upper protruding tubular column, a lifting seat with an inner groove at the lower part is sleeved on the periphery of the upper protruding tubular column, a convex pin matched with the thread groove and moving spirally along the thread groove is arranged at the lower part of the inner groove of the lifting seat, a return spring is arranged between the inner bottom of the upper protruding tubular column and the upper bottom of the inner groove, an upper cutting blade for cutting the outer layer of pencil wood and a lower cutting blade for cutting the inner core of the pencil are arranged in a groove hole body at the upper part of the lifting; a lifting clamp plate is arranged above the outer sleeve, four corners of the lifting clamp plate are provided with four sliding rods, the four sliding rods slide in four channels at the upper part of the outer sleeve in a lifting manner, and the lifting clamp plate is provided with an elastic clamp for clamping a pencil; the upper ends of the four sliding rods are fixed on a lifting splint, the lower ends of the four sliding rods can lift and slide in the channel, the elastic clamping clamp consists of two opposite concave blocks and a telescopic rod connected with the rear sides of the concave blocks, and the telescopic rod is sleeved with a spring; the upper cutting blade is a spiral blade arranged in the slotted hole; the lower cutting blade is a straight blade arranged in the slotted hole; the slotted hole comprises a cylindrical upper section part and a conical lower section part, the spiral blade is arranged on the cylindrical upper section part, the spiral blade protrudes out of the wall surface of the cylindrical upper section part, and the straight blades are provided with two pieces and are uniformly distributed on the conical lower section part; the chip removal holes comprise an upper chip removal hole and a lower chip removal hole, the upper chip removal hole obliquely penetrates out of the lifting seat along the slotted hole, a chip removal window is arranged on the outer sleeve and is opposite to the outlet of the upper chip removal hole, and the lower chip removal hole penetrates to the upper bottom of the inner groove of the lifting seat from the bottom of the slotted hole; the outer sleeve peripheral wall is frustum-shaped, and has anti-skidding rubber layer in its bottom, the thread groove is single thread groove, and its helical pitch is 1-3 centimetres.
2. A working method of a pressing telescopic pencil sharpener is characterized in that: the push telescopic pencil sharpener comprises an outer sleeve and an upper protruding tubular column arranged at the inner bottom of the outer sleeve, wherein a thread groove is formed in the outer wall surface of the upper protruding tubular column, a lifting seat with an inner groove at the lower part is sleeved on the periphery of the upper protruding tubular column, a protruding pin which is matched with the thread groove and moves spirally along the thread groove is arranged at the lower part of the inner groove of the lifting seat, a return spring is arranged between the inner bottom of the upper protruding tubular column and the upper bottom of the inner groove, an upper cutting blade for cutting the outer layer of pencil wood and a lower cutting blade for cutting the inner core of the pencil are arranged in a groove hole at the upper part of the lifting seat, and; a lifting clamp plate is arranged above the outer sleeve, four corners of the lifting clamp plate are provided with four sliding rods, the four sliding rods slide in four channels at the upper part of the outer sleeve in a lifting manner, and the lifting clamp plate is provided with an elastic clamp for clamping a pencil; the upper ends of the four sliding rods are fixed on a lifting splint, the lower ends of the four sliding rods can lift and slide in the channel, the elastic clamping clamp consists of two opposite concave blocks and a telescopic rod connected with the rear sides of the concave blocks, and the telescopic rod is sleeved with a spring; the upper cutting blade is a spiral blade arranged in the slotted hole; the lower cutting blade is a straight blade arranged in the slotted hole; the slotted hole comprises a cylindrical upper section part and a conical lower section part, the spiral blade is arranged on the cylindrical upper section part, the spiral blade protrudes out of the wall surface of the cylindrical upper section part, and the straight blades are provided with two pieces and are uniformly distributed on the conical lower section part; the chip removal holes comprise an upper chip removal hole and a lower chip removal hole, the upper chip removal hole obliquely penetrates out of the lifting seat along the slotted hole, a chip removal window is arranged on the outer sleeve and is opposite to the outlet of the upper chip removal hole, and the lower chip removal hole penetrates to the upper bottom of the inner groove of the lifting seat from the bottom of the slotted hole; the outer peripheral wall of the outer sleeve is frustum-shaped, the bottom of the outer sleeve is provided with an anti-slip rubber layer, the thread groove is a single thread groove, the lead of the single thread groove is 1-3 cm, and a user can clamp the pencil by the elastic clamp before pressing the pencil from top to bottom so as to reduce the rotation of the pencil; when the pencil sharpener works, a user holds one end of a pencil tightly, then the end needing to be sharpened extends into the slot hole, then the pencil is pressed forcibly from top to bottom, the downward pressure of the pencil drives the lifting seat to move from top to bottom along the spiral groove, the spiral movement of the lifting seat drives the upper cutting blade to sharpen the outer wood layer of the pencil, the lower cutting blade is driven to cut the inner core of the pencil, and chips are discharged from the chip removal hole after being cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208181.1A CN109334316B (en) | 2018-10-17 | 2018-10-17 | Pressing telescopic pencil sharpener and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208181.1A CN109334316B (en) | 2018-10-17 | 2018-10-17 | Pressing telescopic pencil sharpener and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109334316A CN109334316A (en) | 2019-02-15 |
| CN109334316B true CN109334316B (en) | 2020-10-27 |
Family
ID=65308967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811208181.1A Expired - Fee Related CN109334316B (en) | 2018-10-17 | 2018-10-17 | Pressing telescopic pencil sharpener and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109334316B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB831672A (en) * | 1956-11-26 | 1960-03-30 | Casimiro Chelazzi | Improvements in pencil sharpeners |
| JP2869769B2 (en) * | 1994-08-29 | 1999-03-10 | クツワ株式会社 | Manual pencil sharpener |
| GB2414714A (en) * | 2004-06-02 | 2005-12-07 | Azhar Ali Shah | Pencil sharpener |
| CN201154636Y (en) * | 2008-01-15 | 2008-11-26 | 漆和芝 | Pencil sharpener for pencil lead |
| CN201552931U (en) * | 2008-11-22 | 2010-08-18 | 刘伟 | Spiral-edge pencil sharpener |
| CN202271739U (en) * | 2011-10-11 | 2012-06-13 | 文鲁康 | Novel pencil sharpener |
| CN204432185U (en) * | 2015-02-28 | 2015-07-01 | 崔爱梅 | A kind of automatic sharpening pencil-knife |
| CN205468166U (en) * | 2016-02-01 | 2016-08-17 | 王兴江 | Novel pencil penknife |
| CN106808869A (en) * | 2017-03-27 | 2017-06-09 | 浙江工贸职业技术学院 | A kind of singlehanded pencil sharpener |
| CN107139623A (en) * | 2017-04-20 | 2017-09-08 | 安徽玉辉电子科技有限公司 | Automatic pen feeding pencil sharpener |
-
2018
- 2018-10-17 CN CN201811208181.1A patent/CN109334316B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB831672A (en) * | 1956-11-26 | 1960-03-30 | Casimiro Chelazzi | Improvements in pencil sharpeners |
| JP2869769B2 (en) * | 1994-08-29 | 1999-03-10 | クツワ株式会社 | Manual pencil sharpener |
| GB2414714A (en) * | 2004-06-02 | 2005-12-07 | Azhar Ali Shah | Pencil sharpener |
| CN201154636Y (en) * | 2008-01-15 | 2008-11-26 | 漆和芝 | Pencil sharpener for pencil lead |
| CN201552931U (en) * | 2008-11-22 | 2010-08-18 | 刘伟 | Spiral-edge pencil sharpener |
| CN202271739U (en) * | 2011-10-11 | 2012-06-13 | 文鲁康 | Novel pencil sharpener |
| CN204432185U (en) * | 2015-02-28 | 2015-07-01 | 崔爱梅 | A kind of automatic sharpening pencil-knife |
| CN205468166U (en) * | 2016-02-01 | 2016-08-17 | 王兴江 | Novel pencil penknife |
| CN106808869A (en) * | 2017-03-27 | 2017-06-09 | 浙江工贸职业技术学院 | A kind of singlehanded pencil sharpener |
| CN107139623A (en) * | 2017-04-20 | 2017-09-08 | 安徽玉辉电子科技有限公司 | Automatic pen feeding pencil sharpener |
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| Publication number | Publication date |
|---|---|
| CN109334316A (en) | 2019-02-15 |
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Granted publication date: 20201027 |