CN114523792A - Automatic boosting pen structure with pen point protection - Google Patents
Automatic boosting pen structure with pen point protection Download PDFInfo
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- CN114523792A CN114523792A CN202210026724.8A CN202210026724A CN114523792A CN 114523792 A CN114523792 A CN 114523792A CN 202210026724 A CN202210026724 A CN 202210026724A CN 114523792 A CN114523792 A CN 114523792A
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- 239000004033 plastic Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 description 15
- 230000001960 triggered effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
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- 230000001681 protective effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- 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
- B43L23/002—Sharpeners for pencils or leads with continuous conveying means for the pencil
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- 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
- B43L23/02—Sharpeners for pencils or leads with gearing
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- 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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- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The invention discloses an automatic propelling pencil structure with a pencil point protection function, which comprises an automatic pencil feeding structure, a pencil point protection structure and a detachable pencil sharpening frame, wherein the automatic pencil feeding structure is connected with the pencil point protection structure; the detachable pencil sharpening frame comprises an upper part, a middle part and a lower part, the automatic pencil feeding structure is arranged at the upper part, and the pencil point protection structure penetrates through the upper part, the middle part and the lower part; the invention provides an automatic boosting pen structure with pen point protection, which has the advantages of simple structure, convenient operation, relatively low cost and longer service life.
Description
This application is the patent number: 2021112674382 entitled divisional application for a pencil sharpener.
Technical Field
The invention relates to the field of stationery, in particular to an automatic propelling pencil structure with a pencil point protection function.
Background
The electric pencil sharpener is a common stationery, and comprises a shell component, a knife rest component, a driving component, a power supply component and the like, wherein: the tool rest assembly, the driving assembly, the power supply assembly and the like are arranged in the inner space of the shell assembly; the driving assembly comprises a motor, a gear box and other components, wherein the motor is electrically connected with the power supply assembly, and the gear box is connected with the motor and the tool rest assembly in a transmission manner; therefore, the power of the motor is transmitted to the knife rest to drive the blade on the knife rest to rotate, and finally the pencil sharpening process is finished.
The existing electric pencil sharpener is generally manually fed, and whether the pencil is sharpened or not is judged by depending on human subjectivity, so that the pencil is easily sharpened by mistake in the sharpening process, thereby causing great waste, and nowadays when resources are increasingly exhausted, the electric pencil sharpener which is more economical and environment-friendly can meet the requirements of users.
Disclosure of Invention
The pencil sharpener overcomes the defects of the prior art, and is simple in structure, convenient to operate, relatively low in cost and long in service life.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a pencil sharpener comprises an automatic pencil feeding structure, a self-starting structure, a knife rest, a gear adjusting structure, a pencil point protecting structure and a detachable pencil sharpening frame;
can dismantle and cut a frame and include upper portion, middle part and lower part, advance a structure setting on upper portion automatically, the knife rest sets up in the middle part, and the gear is adjusted the structure and is set up in the lower part, and self-starting structure, nib protection architecture run through upper portion, middle part and lower part.
Furthermore, the automatic pen feeding structure compatible with various pen sizes comprises at least two clamping units, and the clamping units form a rotating pattern; the clamping unit axially moves within a certain range; the clamping unit comprises a clamping limiting sleeve, a clamping rotating wheel, a clamping rotating gear sleeve, a limiting rotary table and a clamping polished rod, the clamping limiting sleeve, the clamping rotating wheel and the clamping rotating gear sleeve are sequentially sleeved on the clamping polished rod, the limiting rotary table is arranged below the clamping polished rod, and a gear on the limiting rotary table is in contact with the clamping rotating gear sleeve.
Furthermore, the clamping rotating wheel is made of rubber materials; friction blocks are distributed on the contact surfaces of the clamping limiting sleeve, the clamping rotating gear sleeve and the clamping rotating wheel, and the whole friction block is a triangular prism; one side of the clamping rotary gear sleeve, which is close to the clamping rotary wheel, is provided with a clamping limiting boss, the cross section of the clamping limiting boss is in an isosceles trapezoid shape, and the clamping limiting boss is integrally arc-shaped.
Furthermore, the clamping unit also comprises a clamping sleeve which is arranged in the middle of the clamping polished rod and is positioned on the inner side of the clamping rotating wheel; the clamping sleeve adopts a plastic piece, and a certain distance is reserved between the clamping sleeve and the clamping limiting sleeve as well as between the clamping rotating gear sleeve and the clamping limiting sleeve.
Further, still include the drive fluted disc, the cooperation of drive fluted disc and spacing carousel is used, and sets up the buckle in the middle of it and is used for spacing carousel and connects other parts of the ware of cutting a pencil.
Furthermore, the self-starting structure comprises a starting clamping piece, a starting connecting piece and a starting switch, wherein the starting clamping piece starts the starting switch through the starting connecting piece; the starting clamping piece is moved by external force, the starting connecting piece moves according to the starting clamping piece, the moving direction of the starting clamping piece is different from that of the starting connecting piece, the inclined planes are arranged on the starting clamping piece and the starting connecting piece, and the starting clamping piece and the starting connecting piece are in contact through the inclined planes.
Furthermore, the starting connecting piece comprises a resetting connecting rod and a guide rod, and a certain distance is reserved between the resetting connecting rod and the guide rod; the reset connecting rod is integrally F-shaped and comprises a first reset transverse rod, a second reset transverse rod, a reset vertical rod and a reset spring, the second reset transverse rod is fixed on a certain position of the reset spring, and one end of the reset spring is fixed on one side, close to the second reset transverse rod, of the first reset transverse rod.
Furthermore, a placing groove is formed in the position, corresponding to the second reset cross rod, of the upper part of the detachable pencil sharpening frame, and the second reset cross rod moves in the placing groove; the starting clamping piece comprises a starting guide block, a starting clamping block and a starting spring, the starting guide block is fixedly connected to one side, close to the starting connecting piece, of the starting clamping block, and the starting spring is arranged above the starting guide block; the starting guide block is contacted with the reset connecting rod; the position where the starting guide block is contacted with the resetting connecting rod is provided with a chamfer plane; an arc-shaped groove surface is arranged at a position, close to the pen inlet, of the starting clamping block, and the thickness of the arc-shaped groove surface is increased as the whole body is closed to the middle of the upper side and the lower side, namely, the distance from the middle of the pen inlet to the middle of the pen inlet is farthest from the upper side and the lower side, and the middle of the arc-shaped groove surface is nearest; the arc-shaped surface is arc-shaped from left to right; wherein at least 1 clamping piece is started; the starting switch controls the work of the motor of the pencil sharpener.
Furthermore, the gear adjusting structure comprises a gear adjusting part, a pen assisting block and a gear guiding piece, wherein the gear adjusting part controls the pen assisting block to move through the gear guiding piece so as to control the length of the cut pen point; the pen assisting block is arranged in the corresponding space of the knife rest and can move in the space; the whole gear adjusting part is a gear in a circular ring column shape, the height of the gear part is gradually increased, and the highest part is as high as the middle position of the gear adjusting part; the gear adjusting structure also comprises an adjusting piece, wherein the adjusting piece adopts a gear and is in contact fit with the gear adjusting part; the lower part of the detachable pencil sharpening frame is provided with a gap for exposing the adjusting piece; the lower part of the detachable pencil sharpening frame is provided with a supporting column for supporting the adjusting piece, the supporting column is integrally in a circular column shape, and the outer side of the supporting column is provided with a limiting boss for supporting the adjusting piece; the gear guide piece moves in the axial direction, and an auxiliary fixing piece is arranged on the outer side of the gear guide piece.
Furthermore, the pen point protection structure comprises a clamping rotating gear sleeve, a driving fluted disc and a delay connection structure, wherein the delay connection structure controls the linkage of the clamping rotating gear sleeve and the driving fluted disc; the delay connection structure comprises a linkage rotating rod and a control box, and the control box controls the axial movement of the linkage rotating rod so as to control the connection of the clamping rotating tooth sleeve and the driving fluted disc; one end of the linkage rotating rod, which is close to the clamping rotating gear sleeve, is provided with a gear, and the driving fluted disc and the clamping rotating gear sleeve are linked through the end; one end of the linkage rotating rod, which is far away from the clamping rotating tooth sleeve, is provided with threads, the control box comprises a control box body and a delay block, and the control box body controls the delay block to extend into the position of the linkage rotating rod where the threads are arranged; the control box body comprises a control frame and a driving block, the delay block moves according to the driving block, the moving direction of the delay block is different from that of the driving block, and the delay block and the driving block are both provided with inclined planes which are in contact with each other through the inclined planes; the control box body also comprises a delay spring, and the delay spring is connected with one end of the control frame and one end of the delay block; the delay block comprises a delay block body, a spring connecting end and a delay guide block, wherein the spring connecting end is connected with the delay spring, and a corresponding notch is formed in the control frame; the time-delay connecting structure further comprises a gear adjusting structure, and a gear adjusting part of the gear adjusting structure provides force for the driving block to move.
Compared with the prior art, the invention has the advantages that:
1, the invention has simple and reasonable structural design, convenient manufacture, strong practicability and easy popularization and use.
2, the whole pencil sharpener is built through the detachable pencil sharpening frame, and the later-period disassembly and maintenance are convenient. The convenient pen rack of cutting of dismantling, the life and the stability of improvement that will better extension this scheme cut a ware.
3, the invention realizes the dislocation limit of the movement of the pen through the movement of the clamping unit, thereby clamping the pen to be cut. The limiting sleeve is integrally clamped to achieve limiting effect, and the clamping rotating wheel is finally used for clamping the pen. The clamping rotary gear sleeve is matched with the limiting rotary disc to firmly clamp the pen without loosening. The clamping rotating wheel is made of rubber materials, so that the pen to be cut can be better protected, and the clamped part is not damaged. And the rotation of the clamping rotary gear sleeve is used for limiting the limit of the clamping rotary gear sleeve, wherein the clamping limit boss is matched with a gear on the clamping rotary gear sleeve for use. This results in a clamping of the direction of movement of the toothed sleeve and thus of the pen to be cut. After the pencil is inserted into the pencil sharpener, the starting clamping piece is triggered to move towards the horizontal direction, the starting connecting piece moves downwards due to the design of the inclined plane, and therefore the starting switch is triggered, and the pencil sharpener starts to sharpen a pencil.
4, the pencil point sharpening position of the tool rest is provided with the pencil assisting block to limit the length of the pencil point. The pen aid block pushes and limits the moving distance through the gear guide piece. Therefore, the pen aid block is arranged in the corresponding space of the knife rest and can move in the space.
And 5, the time-delay connecting structure is communicated with the limiting turntable and the driving fluted disc, and when the time-delay connecting structure is communicated, the pencil sharpener is in a working state. After the work of the pencil sharpener is finished, the time-delay connecting structure can be disconnected with the pencil sharpener, so that the driving fluted disc can rotate for a while again under the inertia, the limiting turntable does not work any more, the pencil sharpener is to be cut at the moment, and can not be limited by the limiting turntable along with the rotation of the driving fluted disc, and the time-delay pencil sharpening effect is achieved. When can not appear cutting a pencil, stop cutting a pencil at once and cause the condition of the nib damage of cutting, the phenomenon of barb can not appear yet in this scheme. A situation like idling of the pencil to be sharpened occurs.
Drawings
FIG. 1 is an overall schematic view of the present invention;
FIG. 2 is a schematic view of the present invention with the housing removed from FIG. 1;
FIG. 3 is a schematic view of an automatic pen feeding structure of the present invention;
FIG. 4 is a schematic view of the clamping unit, the limiting rotary table and the driving fluted disc of the present invention;
FIG. 5 is a schematic view of the clamping collar of the present invention;
FIG. 6 is a schematic view of a clamping rotating sleeve of the present invention;
FIG. 7 is a schematic view of the clamping rotor of the present invention;
FIG. 8 is a schematic view of a spacing dial of the present invention;
FIG. 9 is a schematic view of a drive sprocket of the present invention;
FIG. 10 is a schematic diagram of the deadweight autostart architecture of the present invention;
FIG. 11 is an enlarged partial schematic view of the deadweight restart architecture of the present invention;
FIG. 12 is a schematic view of the actuating clamp of the present invention;
FIG. 13 is a schematic view of an upper portion of the present invention;
FIG. 14 is a schematic view of the reducing adapter rod of the present invention;
FIG. 15 is a schematic view of a gear adjustment configuration of the present invention;
FIG. 16 is an enlarged, partially schematic view of the shift position adjustment structure of the present invention;
FIG. 17 is a schematic structural view of the vicinity of the shift position adjusting portion of the invention;
FIG. 18 is a schematic view of a nib protective structure of the present invention;
FIG. 19 is another schematic illustration of the time delay connection of the present invention;
FIG. 20 is a schematic structural view of the clutch portion of the present invention;
FIG. 21 is a schematic view of the structure of the vicinity of the control box section of the present invention;
FIG. 22 is a schematic view of the control box of the present invention;
FIG. 23 is a schematic diagram of a delay block of the present invention;
FIG. 24 is a schematic view of the control framework of the present invention;
FIG. 25 is a schematic structural view of another clutch portion of the present invention;
FIG. 26 is a schematic view of a structure in the vicinity of another control box portion of the present invention;
FIG. 27 is a schematic view of another control box configuration of the present invention;
FIG. 28 is a schematic diagram of another delay block configuration of the present invention;
FIG. 29 is a partially schematic view of a removable sharpening stage portion of the invention;
FIG. 30 is a schematic view of the construction of the lower portion of the present invention;
fig. 31 is a schematic view of the structure of the middle portion of the present invention.
The labels in the figure are: automatic advance a structure: the clamping unit 11, a clamping limit sleeve 111, a clamping rotary wheel 112, a clamping rotary gear sleeve 113, a limit rotary disc 114, a clamping polished rod 115, a friction block 116, a clamping limit boss 117, a clamping sleeve 118 and a driving fluted disc 119;
the self-starting structure comprises: the device comprises a starting clamping piece 21, a starting guide block 211, a starting clamping block 212, a starting spring 213, an arc-shaped groove surface 214, a starting connecting piece 22, a resetting connecting rod 221, a guide rod 222, a first resetting cross rod 223, a second resetting cross rod 224, a resetting vertical rod 225, a resetting spring 226 and a starting switch 23; a tool holder 3;
the gear adjusting structure comprises: a gear position adjusting part 41, a gear part 411, a pen assisting block 42, a gear position guiding piece 43, an adjusting piece 44 and an auxiliary fixing piece 45;
nib protection architecture: the device comprises a limit turntable 114, a driving fluted disc 119, a delay connecting structure 51, a linkage rotating rod 52, a control box 53, a control box body 531, a delay block 532, a control frame 5311, a driving block 5312, a delay spring 5313, a delay block body 53121, a spring connecting end 53122, a delay guide block 53123 and a notch 53111;
can dismantle and cut penholder: upper portion 61, arrangement groove 611, middle part 62, lower part 63, breach 631, support column 632, spacing boss 633.
Detailed Description
The invention is further described with reference to the following figures and detailed description. Portions not described in detail herein may be implemented using conventional techniques.
As shown in fig. 1 to 31, a pencil sharpener comprises an automatic pencil feeding structure, a self-starting structure, a tool rest 3, a gear adjusting structure, a pencil point protecting structure and a detachable pencil sharpening frame.
The detachable pencil sharpening frame comprises an upper portion 61, a middle portion 62 and a lower portion 63, an automatic pencil feeding structure is arranged on the upper portion 61, a pencil rest 3 is arranged on the middle portion 62, a gear adjusting structure is arranged on the lower portion 63, and a self-starting structure and a pencil point protecting structure penetrate through the upper portion 61, the middle portion 62 and the lower portion 63. The whole ware of cutting is built through dismantling the frame of cutting promptly, and the later stage of being convenient for is dismantled and is maintained, is whole main frame of cutting the ware, supports whole ware of cutting. The convenient pen rack of cutting of dismantling, the life and the stability of improvement that will better extension this scheme cut a ware.
The automatic pen feeding structure comprises at least two clamping units 11, wherein the automatic pen feeding structure compatible with various pen sizes comprises the following components, and the clamping units 11 form a rotating pattern; the clamping unit 11 performs an axial movement within a certain range. That is, by the movement of the clamping unit 11, the movement of the pen is restricted by the misalignment, thereby clamping the pen to be cut. Generally, two clamping units 11 are adopted, and the clamping units 11 clamp the pen by adopting a rotating pattern, namely, a staggered movement is formed. If three clamping units 11 are adopted, the three clamping units are designed to be triangular in the same way, and the three clamping units move in a staggered mode to clamp the pen.
The clamping unit 11 comprises a clamping limiting sleeve 111, a clamping rotating wheel 112, a clamping rotating gear sleeve 113, a limiting turntable 114 and a clamping polished rod 115, wherein the clamping limiting sleeve 111, the clamping rotating wheel 112 and the clamping rotating gear sleeve 113 are sequentially sleeved on the clamping polished rod 115, the limiting turntable 114 is arranged below the clamping polished rod 115, and a gear on the limiting turntable 114 is in contact with the clamping rotating gear sleeve 113. The limiting sleeve 111 is integrally clamped to achieve limiting effect, and the clamping rotating wheel 112 is finally used for clamping the pen. The clamping gear sleeve 113 and the limiting rotary disc 114 are matched to firmly clamp the pen and prevent the pen from loosening. The clamping rotating wheel 112 is made of rubber materials, so that a pen to be cut can be better protected, and the clamped part is not damaged.
Preferably, the friction blocks 116 are distributed on the contact surfaces of the clamping stop sleeve 111, the clamping toothed sleeve 113 and the clamping runner 112, and the whole friction block 116 is a triangular prism. So as to better synchronize the clamping stop sleeve 111, the clamping rotating-teeth sleeve 113 and the clamping rotating wheel 112.
One side of the limit turntable 114 close to the clamping runner 112 is provided with a clamping limit boss 117, the cross section of the clamping limit boss 117 is isosceles trapezoid, and the whole clamping limit boss 117 is arc-shaped. Namely, the rotation of the limiting dial 114 is used for limiting the limitation of the clamping rotary gear sleeve 113, wherein the clamping limiting boss 117 is matched with the gear on the clamping rotary gear sleeve 113 for use. This results in a clamping of the direction of movement of the toothed sleeve 113 and thus of the pen to be cut. When the number of the clamping limit bosses 117 is one, the distance between the head and the tail is the distance of one gear on the clamping rotating gear sleeve. If the rotation speed of the clamping rotor 112 is to be increased, the number of the clamping limit bosses 117 is increased. When at least two clamping limit bosses 117 are clamped, the distance between the head and the tail of the adjacent clamping limit bosses 117 is the distance of one gear on the clamping rotary gear sleeve 113. That is, the transverse distance between the tail of the previous clamping limit boss 117 and the head of the next clamping limit boss 117 is the distance of one gear on the clamping rotary gear sleeve 113. Regardless of how many pinch stop bosses 117 are provided, the distribution thereof must be arranged in a circle.
Preferably, the clamping unit 11 further comprises a clamping sleeve 118, and the clamping sleeve 118 is disposed in the middle of the clamping polish rod 115 and is located inside the clamping runner 112. That is, the clamping rotating wheel 112 is generally made of rubber material, and is difficult to move and inconvenient to move in a staggered manner when being directly sleeved on the clamping polished rod 115; therefore, a clamping sleeve 118 is added to facilitate the movement of the clamping wheel 112 and protect the pencil to be sharpened. Namely, the clamping sleeve 118 is made of plastic, and a certain distance is reserved between the clamping sleeve 118 and the clamping limiting sleeve 111 and between the clamping rotating-tooth sleeve 113, and the certain distance is generally controlled within the height range of the clamping limiting boss 117.
The automatic pencil feeding structure can further comprise a driving fluted disc 119, the driving fluted disc 119 is matched with the limiting turntable 114 for use, and a buckle is arranged in the middle of the driving fluted disc 119 and used for limiting the limiting turntable 114 and connecting other parts of the pencil sharpener. Wherein the driving toothed disc 119 drives the limit turntable 114 to rotate together with the limit turntable through other members.
The self-starting structure specifically comprises a starting clamping piece 21, a starting connecting piece 22 and a starting switch 23, wherein the starting clamping piece 21 starts the starting switch 23 through the starting connecting piece 22; start holder 21 and receive external force to move, start linking piece 22 and take place to remove according to starting holder 21, and the moving direction that starts holder 21 is different with the moving direction that starts linking piece 22, all sets up the scarf on starting holder 21, the start linking piece 22, and both pass through the scarf contact. That is, after the pencil sharpener inserts a pencil, the start clamping piece 21 is triggered to move towards the horizontal direction, the start connecting piece 22 moves downwards due to the design of the inclined plane, and the start switch 23 is triggered, so that the pencil sharpener starts to cut the pencil. Namely, the starting switch 23 controls the motor of the pencil sharpener to work.
The actuating link 22 includes a reset link rod 221 and a guide rod 222, and the reset link rod 221 and the guide rod 222 are spaced apart from each other. The distance is usually set to be several millimeters, so that the pencil sharpener is prevented from being triggered to operate due to mistaken insertion. The detachable pencil sharpening frame is integrally divided into three parts, so that the self-starting structure is conveniently detached, and subsequent installation and maintenance are facilitated.
The reset connecting rod 221 is integrally F-shaped, and includes a first reset cross rod 223, a second reset cross rod 224, a reset vertical rod 225 and a reset spring 226, the second reset cross rod 224 is fixed on a certain position of the reset spring 226, and one end of the reset spring 226 is fixed on one side of the first reset cross rod 223 close to the second reset cross rod 224. Wherein the first reset bar 223 is longer than the second reset bar 224 for an advancing movement in contact with the actuation clamp 21. The second reset cross bar 224 is matched with the corresponding position of the upper part 61 of the detachable pen sharpening frame to realize the limiting function, so that the reset connecting rod 221 cannot move down too much. Namely, the position of the upper part 61 of the detachable pencil sharpening frame corresponding to the second reset cross bar 224 is provided with a placing groove 611, and the second reset cross bar 224 moves in the placing groove 611. The reset vertical rod 225 pushes the guide rod 222, and the reset spring 226 pushes the reset connecting rod 221 in the opposite direction, so as to release the self-starting structure.
The starting clamping piece 21 comprises a starting guide block 211, a starting clamping block 212 and a starting spring 213, the starting guide block 211 is fixedly connected to one side, close to the starting connecting piece 22, of the starting clamping block 212, and the starting spring 213 is arranged above the starting guide block 211; the start guide 211 is in contact with the reset coupling rod 221. In principle, only one actuating clamp 21 is needed, the pen insertion actuating clamp block 212 is pushed to move horizontally, the actuating guide block 211 is pushed accordingly, and the actuating spring 213 is compressed. That is, a chamfer is provided at a position where the actuating guide 211 contacts the reset coupling rod 221, to form a pushing force to the reset coupling rod 221. However, for better operation, the two actuating clamps 21 are typically arranged, one of which is the same as the single one and the other of which is not in contact with the reset joint rod 221, but on opposite sides, so as to form a bi-directional clamp, which can better clamp the pencil to be sharpened. Naturally, three or even more can be provided to achieve a better grip. In principle, however, only one of these can be provided, which cooperates with the housing of the upper part 61 to achieve the clamping effect.
Specifically, the arc-shaped groove surface 214 is arranged at a position of the start clamping block 212 close to the pen inlet, and the thickness of the arc-shaped groove surface 214 is increased as the whole is closed from the upper side to the lower side to the middle, namely, the distance from the middle of the pen inlet to the upper side is farthest, and the middle is nearest; the arc surface is arc-shaped from left to right. The provision of the arcuate recess surface 214 preferably serves to guide the entry of the pencil to be sharpened and also to push the actuating grip block 212 open.
The gear adjusting structure comprises a gear adjusting part 41, a pen assisting block 42 and a gear guide 43, wherein the gear adjusting part 41 controls the pen assisting block 42 to move through the gear guide 43 so as to control the length of the sharpened pen point. Namely, the pencil assisting block 42 is arranged at the pencil sharpening point position where the tool rest 3 operates to limit the length of the pencil point. The pen aid block 42 pushes and limits the moving distance by the shift guide 43. The pen aid block 42 is thus arranged in the corresponding space of the blade holder 3 and can be moved in this space. In general, the gear guide 43 is axially displaced and, in order to protect the gear guide 43, an auxiliary fixing element 45 is arranged on the outside thereof. The pen rack is convenient to detach and install, and the pen rack can be detached and cut at different positions by dividing, so that the pen rack can be detached and installed better and maintained later.
The specific gear adjustment portion 41 is a circular column-shaped gear as a whole, the height of the gear portion 411 gradually increases, and the highest portion is as high as the middle position of the gear adjustment portion 41 (that is, the highest portion of the gear portion 411 is as high as the gear adjustment portion 41 and extends for a certain distance). That is, the distance by which the gear guide 43 pushes is formed by the height of the gear portion 411, thereby limiting the distance by which the writing assistant block 42 moves.
Preferably, the gear adjusting structure further comprises an adjusting piece 44, and the adjusting piece 44 is a gear which is in contact fit with the gear adjusting part 41; the lower portion 63 of the removable pencil sharpener is provided with an indentation 631 exposing the adjustment member 44. Thus, the user can rotate the adjusting member 44 through the notch 631, and the gear of the adjusting member 44 is linked with the cylindrical gear to select the height of the gear portion 411, so as to control the pen assisting block 42 to limit the pen point length.
The lower portion 63 of the detachable pencil sharpening frame is provided with a supporting column 632 for supporting the adjusting piece 44, the supporting column 632 is integrally in a circular column shape, and the outer side of the supporting column is provided with a limiting boss 633 for supporting the adjusting piece 44, so that the adjusting piece 44 can be conveniently adjusted and rotated to control the gear adjusting portion 41.
The pen point protection structure at least comprises a limiting turntable 114, a driving fluted disc 119 and a delay connecting structure 51, wherein the delay connecting structure 51 controls the linkage of the limiting turntable 114 and the driving fluted disc 119. The limit turntable 114 and the driving fluted disc 119 are dual-purpose parts. The time-delay connecting structure 51 is communicated with the limit turntable 114 and the driving fluted disc 119, and when the time-delay connecting structure is communicated with the limit turntable and the driving fluted disc, the pencil sharpener is in a working state. After the work of the pencil sharpener is finished, the time-delay connecting structure 51 can disconnect the connection between the pencil sharpener and the time-delay connecting structure, so that the driving fluted disc 119 can rotate again under the inertia, the limiting turntable 114 does not work any more, the pencil to be sharpened can rotate along with the driving fluted disc 119 at the moment, and cannot be limited by the limiting turntable 114, and the pencil point protection effect of the pencil to be sharpened is achieved. When can not appear cutting a pencil, stop cutting a pencil at once and cause the condition of the nib damage of cutting, the phenomenon of barb can not appear yet in this scheme. Namely, the condition similar to idle rotation of the pencil to be sharpened occurs so as to protect the pencil point to be sharpened.
Specifically, the delay connection structure 51 may be a complete whole rod, or may be a two-segment structure convenient for disassembly, and the specific structure is shown in fig. 18 and 19.
As shown in fig. 20 to 24, the delay connection structure 51 includes a linkage rotating rod 52 and a control box 53, and the control box 53 controls the axial movement of the linkage rotating rod 52, so as to control the connection between the limit turntable 114 and the driving fluted disc 119. One end of the linkage rotating rod 52 close to the limit turntable 114 is provided with a gear, and the driving fluted disc 119 and the limit turntable 114 are linked through the end. When the link lever 52 moves downwardly, it causes the end adjacent the limit dial 114 to contact only the drive cog 119.
Preferably, a thread is arranged at one end of the linkage rotating rod 52 far away from the limit turntable 114, the control box 53 comprises a control box body 531 and a delay block 532, and the control box body 531 controls the delay block 532 to extend into the position of the linkage rotating rod 52 where the thread is arranged. Thereby forming a screw-like structure that controls the axial movement of the interlocking rotating rod 52.
The control box body 531 comprises a control frame 5311 and a driving block 5312, the delay block 532 moves according to the driving block 5312, the moving direction of the delay block 532 is different from that of the driving block 5312, the delay block 532 and the driving block 5312 are both provided with inclined planes, and the two are in contact through the inclined planes. That is, the delay block 532 is controlled to move in the direction of the interlocking lever 52 by the up-and-down movement of the driving block 5312. Namely, the linkage rotating rod 52, the delay block 532 and the driving block 5312 are combined to form a clutch structure, so as to control the connection and disconnection of the delay connecting structure 51, the driving fluted disc 119 and the limiting rotary disc 114.
The control box body 531 further includes a delay spring 5313, and the delay spring 5313 connects one end of the control frame 5311 and one end of the delay block 532. Which acts to reset the delay block 532 to the original position. The specific delay block 532 comprises a delay block body 53121, a spring connecting end 53122 connected with a delay spring 5313 and a delay guide block 53123, and a control frame 5311 is provided with a corresponding notch 53111, so that the delay guide block 53123 is located at a corresponding position to guide the movement of the whole delay block 532. A switch for controlling the motor may also be provided adjacent the delay guide block 53123 to signal the progress of the sharpening.
Preferably, the time-delay connection structure 51 further comprises a gear adjustment structure, and the gear adjustment portion 41 of the gear adjustment structure provides a force for moving the driving block 5312, that is, when sharpening pen, the gear adjustment structure moves downward as a whole to generate a force for moving the driving block 5312. The gear adjustment structure has two functions, and the other function is described in the foregoing.
As shown in fig. 25 to 28, the whole of the delay connecting structure 51 is similar to that shown in fig. 20 to 24. The driving block 5312 is integrated with the gear adjusting part 41, a circular ring column is arranged at the middle position of one side, away from the upper part 61, of the gear adjusting part 41 and protrudes out, a limiting convex disc is arranged below the circular ring column and connected through a corresponding spring, and a guide column is arranged at the middle position of the limiting convex disc. Wherein the guide posts can restrict the respective springs from deviating. Instead of the drive block 5312, the end of the circular cylinder projecting away from the gear adjustment portion 41 is provided with an annular chamfered surface.
Preferably, the control box body 531 may be provided with a corresponding guide sliding area according to the shape of the driving block 532.
To sum up, this scheme will treat the import of cutting the ware and insert a pen along cutting a pen, can trigger the autostart structure this moment, and the motor rotates, drives the automatic pen structure of advancing and presss from both sides tight pen, and the length of nib can be infinitely variable control through the gear structure of adjusting at any time. When the pen to be sharpened is sharpened, the pressed-down unit adjustment structure triggers the pen point protection structure, thereby causing a result similar to idling and better protecting the sharpened pen. After the pen is taken out, the pencil sharpener is restored to the original state.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the spirit of the present invention, and these modifications and decorations should also be regarded as being within the scope of the present invention.
Claims (10)
1. An automatic propelling pencil structure with a pencil point protection function is characterized by comprising an automatic pencil feeding structure, a pencil point protection structure and a detachable pencil sharpening frame;
the detachable pencil sharpening frame comprises an upper part, a middle part and a lower part, the automatic pencil feeding structure is arranged on the upper part, and the pencil point protection structure penetrates through the upper part, the middle part and the lower part;
the automatic pen feeding structure compatible with various pen sizes comprises at least two clamping units, and the clamping units form a rotating graph; the clamping unit axially moves within a certain range; the clamping unit comprises a clamping limiting sleeve, a clamping rotating wheel, a clamping rotating gear sleeve, a limiting rotary table and a clamping polished rod, wherein the clamping limiting sleeve, the clamping rotating wheel and the clamping rotating gear sleeve are sequentially sleeved on the clamping polished rod, the limiting rotary table is arranged below the clamping polished rod, and a gear on the limiting rotary table is in contact with the clamping rotating gear sleeve;
the pen point protection structure comprises a clamping rotating gear sleeve, a driving fluted disc and a delay connection structure, wherein the delay connection structure controls the linkage of the clamping rotating gear sleeve and the driving fluted disc; the time-delay connecting structure comprises a linkage rotating rod and a control box, wherein the control box controls the axial movement of the linkage rotating rod, so that the connection of the clamping rotating tooth sleeve and the driving fluted disc is controlled.
2. The automatic propelling pencil structure with nib protection of claim 1, wherein: and friction blocks are distributed on the contact surfaces of the clamping limiting sleeve, the clamping rotating gear sleeve and the clamping rotating wheel, and the whole friction block is a triangular prism.
3. The automatic propelling pencil structure with nib protection of claim 2, wherein: one side of the clamping rotary gear sleeve, which is close to the clamping rotary wheel, is provided with a clamping limiting boss, the cross section of the clamping limiting boss is in an isosceles trapezoid shape, and the clamping limiting boss is integrally arc-shaped.
4. The automatic propelling pencil structure with nib protection of claim 1, wherein: the clamping unit also comprises a clamping sleeve, the clamping sleeve is arranged in the middle of the clamping polished rod and is positioned on the inner side of the clamping rotating wheel.
5. The automatic propelling pencil structure with nib protection of claim 1, wherein: the clamping sleeve adopts a plastic piece, and a certain distance is reserved between the clamping sleeve and the clamping limiting sleeve as well as between the clamping rotating gear sleeve and the clamping limiting sleeve.
6. The automatic propelling pencil structure with nib protection of claim 1, wherein: the automatic pencil feeding structure further comprises a driving fluted disc, the driving fluted disc is matched with the limiting turntable for use, and a buckle is arranged in the middle of the driving fluted disc and used for limiting the limiting turntable and connecting other parts of the pencil sharpener.
7. The automatic propelling pencil structure with nib protection of claim 1, wherein: one end of the linkage rotating rod, which is far away from the clamping rotating gear sleeve, is provided with a thread, the control box comprises a control box body and a delay block, and the control box body controls the delay block to extend into the position of the thread arranged on the linkage rotating rod.
8. The automatic propelling pencil structure with nib protection of claim 7, wherein: the control box body comprises a control frame and a driving block, the delay block moves according to the driving block, the moving direction of the delay block is different from that of the driving block, the inclined planes are arranged on the delay block and the driving block, and the delay block and the driving block are in contact through the inclined planes.
9. The automatic propelling pencil structure with nib protection of claim 8, wherein: the control box body further comprises a delay spring, and the delay spring is connected with one end of the control frame and one end of the delay block.
10. The automatic propelling pencil structure with nib protection of claim 8, wherein: the delay block comprises a delay block body, a spring connecting end and a delay guide block, wherein the spring connecting end is connected with the delay spring, and a corresponding notch is formed in the control frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210026724.8A CN114523792B (en) | 2021-10-29 | 2021-10-29 | Automatic boosting pen structure with nib protection |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111267438.2A CN114103533B (en) | 2021-10-29 | 2021-10-29 | Pencil sharpener |
| CN202210026724.8A CN114523792B (en) | 2021-10-29 | 2021-10-29 | Automatic boosting pen structure with nib protection |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111267438.2A Division CN114103533B (en) | 2021-10-29 | 2021-10-29 | Pencil sharpener |
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| Publication Number | Publication Date |
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| CN114523792A true CN114523792A (en) | 2022-05-24 |
| CN114523792B CN114523792B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210026625.XA Withdrawn CN114523791A (en) | 2021-10-29 | 2021-10-29 | Pencil sharpener based on nib adjustment |
| CN202210026724.8A Active CN114523792B (en) | 2021-10-29 | 2021-10-29 | Automatic boosting pen structure with nib protection |
| CN202111267438.2A Active CN114103533B (en) | 2021-10-29 | 2021-10-29 | Pencil sharpener |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210026625.XA Withdrawn CN114523791A (en) | 2021-10-29 | 2021-10-29 | Pencil sharpener based on nib adjustment |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111267438.2A Active CN114103533B (en) | 2021-10-29 | 2021-10-29 | Pencil sharpener |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211684404U (en) * | 2019-12-31 | 2020-10-16 | 宁波天虹文具有限公司 | Self-adaptive pen feeding mechanism |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114103533B (en) | 2022-12-13 |
| CN114523792B (en) | 2023-11-03 |
| CN114103533A (en) | 2022-03-01 |
| CN114523791A (en) | 2022-05-24 |
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