CN108749400B - Posture correcting pen - Google Patents
Posture correcting pen Download PDFInfo
- Publication number
- CN108749400B CN108749400B CN201810790346.4A CN201810790346A CN108749400B CN 108749400 B CN108749400 B CN 108749400B CN 201810790346 A CN201810790346 A CN 201810790346A CN 108749400 B CN108749400 B CN 108749400B
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- pen
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- sliding block
- sleeve
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- 210000003811 finger Anatomy 0.000 claims description 46
- 210000003813 thumb Anatomy 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 210000005224 forefinger Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
- B43K23/008—Holders comprising finger grips
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The invention discloses a posture correcting pen.A double-inclined-plane sliding block is arranged in a pen head sleeve, the front end surface and the rear end surface of the double-inclined-plane sliding block are of inclined-plane structures, the inclined-plane structure at the tail end of a core rod is arranged on the front end surface of the double-inclined-plane sliding block, and the rear end surface of the double-inclined-plane sliding block presses the front end surface of a push rod; the outer side wall of the double-spiral chute rotating block is provided with two spiral chutes, the double-spiral chute rotating block is sleeved on the push rod in a penetrating way, and the upper holding block and the lower holding block respectively penetrate through the side wall of the pen point sleeve and are connected with the sliding blocks positioned in the spiral chutes; simultaneously, the upper holding block and the lower holding block are pressed in opposite directions, so that the two sliding blocks move in the spiral chute, the double spiral chute rotating block moves forwards, and then the push rod pushes the pen core to extend out of the pen cap through the double inclined surface sliding blocks. The holding block for holding the pen holder is required to be held, so that the pen holder has a forced effect on teenagers with poor self-discipline; with the self-holding structure, the pen point can not displace due to the action of external force during writing, the pen point is stable, and the writing quality is ensured.
Description
Technical Field
The invention relates to a pen structure, in particular to a gesture correcting pen, and belongs to the technical field of office stationery.
Background
Writing a good hand is now increasingly important because it can give others a good impression. It is critical to have written characters and to grasp the correct pen holding posture. The correct pen holding posture should be: the thumb and the index finger are naturally bent at two sections and are arranged on the upper side of the penholder, and the middle finger slightly supports the penholder with force upwards; the ventral surface of the thumb is deviated to the right side to contact with the pen holder, the finger tip of the index finger lightly contacts with the pen holder, the middle finger and the part with the root of the nail are used for supporting the pen holder, the thumb is slightly higher than the index finger, and the thumb is about 3 cm away from the pen point. Although an improper pen-holding posture can also write a good word, it has different degrees of influence on the health of the writer. At present, a gesture correcting pen with a pure mechanical structure capable of restraining the gesture of holding the pen does not exist in the market.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a gesture correcting pen with a pure mechanical structure, wherein the gesture correcting pen can restrict the gesture of holding the pen.
The technical scheme of the invention is as follows:
the gesture correcting pen is characterized by comprising a pen cap, a pen core, a push rod, a double-inclined-surface sliding block, a double-spiral chute rotating block, an upper holding block and a lower holding block, wherein the pen cap is formed by connecting a pen point sleeve and a pen container sleeve, the pen core is formed by connecting a pen point and a core rod, the double-inclined-surface sliding block is arranged in the pen head sleeve, and the front end surface and the rear end surface of the double-inclined-surface sliding block are of inclined-surface structures;
the push rod is arranged in the pen container sleeve, and the front end face of the push rod is of an inclined surface structure matched with the rear end face of the double-inclined-surface sliding block; the pen core is arranged at the front section of the cavity of the pen head sleeve, the tail end of the core rod of the pen core is of an inclined surface structure matched with the front end surface of the double-inclined-surface sliding block, the inclined surface structure of the core rod is arranged on the front end surface of the double-inclined-surface sliding block, and the rear end surface of the double-inclined-surface sliding block presses the front end surface of the push rod;
the double-spiral chute rotating block is of a hollow cylindrical structure, two spiral chutes which are symmetrically arranged are arranged on the outer side wall of the double-spiral chute rotating block, the depth of each spiral chute is gradually increased from the front end to the rear end, and sliding blocks are respectively arranged in the two spiral chutes; the double-spiral chute rotating block is sleeved on the push rod and can rotate circumferentially relative to the push rod, and a circle of limiting protrusions for preventing the double-spiral chute rotating block from sliding out are arranged on the front section of the push rod;
the upper holding block and the lower holding block are respectively arranged at the opposite positions of the outer side wall of the pen point sleeve, and the upper holding block and the lower holding block respectively penetrate through the side wall of the pen point sleeve to be connected with the two sliding blocks; simultaneously, the upper holding block and the lower holding block are pressed in opposite directions, so that the two sliding blocks move in the spiral chute, the double-spiral chute rotating block moves forwards, and then the push rod pushes the pen core to extend out of the pen cap through the double-inclined-surface sliding blocks.
Further, a reset spring is arranged between the inner wall of the pen point sleeve and the double-inclined-surface sliding block, and is arranged above the inclined-surface structure of the push rod and perpendicular to the central axis of the pen point sleeve.
Further, two raised guide rails are arranged on the contact part of the inner wall of the pen point sleeve and the double-inclined-surface sliding block, and the two guide rails are oppositely arranged and are parallel to the reset spring; the double-inclined-surface sliding block is provided with grooves at the contact positions of the double-inclined-surface sliding block and the two guide rails respectively, and the guide rails are arranged in the corresponding grooves.
Further, in the double-inclined-surface sliding block, the included angle between the front end surface and the central axis of the pen point sleeve is larger than the included angle between the rear end surface and the central axis of the pen point sleeve; the included angle between the inclined surface structure of the core rod and the central axis of the nib sleeve is equal to the included angle between the front end surface of the double-inclined-surface sliding block and the central axis of the nib sleeve, and the included angle between the inclined surface structure of the push rod and the central axis of the nib sleeve is equal to the included angle between the rear end surface of the double-inclined-surface sliding block and the central axis of the nib sleeve.
Further, replaceable springs are respectively arranged between the sliding blocks and the upper holding blocks and between the sliding blocks and the lower holding blocks.
Further, the sliding block is of a spherical structure, the spherical structure is in rolling connection with the end part of the replaceable spring, and the other end of the replaceable spring is fixedly connected with the upper holding block or the lower holding block.
Further, the tail end of the core rod of the pen core is connected with the front end face of the double-inclined-surface sliding block through a magnetic sheet.
Further, the outer surface of the upper holding block is provided with finger grooves matched with the thumb and the index finger, and the outer surface of the lower holding block is provided with finger grooves matched with the middle finger.
Further, the diameter of the spherical structure is larger than the distance between two sides of the top of the spiral chute.
Further, the pen point sleeve is connected with the pen container sleeve through a buckle.
In the invention, a self-holding structure is formed by a push rod, a double-inclined-surface sliding block, a reset spring and a guide rail, an extrusion pressing structure is formed by a replaceable spring, a rolling ball (sliding block) and a double-spiral chute rotating block, and a replaceable holding device is formed by a replaceable spring, a thumb-forefinger holding block (upper holding block) and a middle finger holding block (lower holding block).
The invention is used when in use:
the thumb and the index finger are gathered together and are held together with the middle finger at a position which is one inch away from the pen point, the thumb and the index finger are used for pinching the thumb-index finger holding block (the thumb and the index finger are arranged in corresponding finger grooves), the middle finger holds the middle finger holding block and clamps the middle finger holding block in opposite directions, and the holding block is connected with the rolling ball through a replaceable spring (the replaceable spring with different spring compression forces is selected according to people with different ages);
the spiral chute near the pen point is shallower, the spiral chute near the pen tail is deeper, when the holding block is pressed down in opposite directions, the rolling ball rolls from shallow to deep in the spiral chute, so that the double-chute rotating block performs spiral feeding motion towards the pen point, and the push rod is pushed to move towards the pen point;
the inclined plane at the front end of the double-spiral chute rotating block (namely the inclined plane structure at the front end of the push rod) enables the double-inclined plane sliding block to move along the guide rail (displace along the central axis direction of the return spring) through inclined plane friction (sliding is generated between the rear end surface of the double-inclined plane sliding block and the front end surface of the push rod, and friction is generated by sliding), and the return spring is compressed; the front end surface of the double-inclined-surface sliding block is connected with the replaceable pen core through the magnetic sheet, and similarly, sliding is generated between the front end surface of the double-inclined-surface sliding block and the tail end of the core rod, and the front end surface is displaced (displaced along the central axis direction of the reset spring) so that the pen core moves and stretches out of the pen head sleeve;
the design of above-mentioned structure, the user must keep thumb, forefinger to press the upper grip block in writing the in-process, and the middle finger drags down the grip block, just so the refill can keep stretching out the pen headgear and write, in writing the in-process promptly, the user keeps the correct posture of holding the pen all the time: the thumb and the index finger are always gathered and positioned on the upper side of the pen holder, the middle finger always holds the pen holder, and the finger is about one inch away from the pen point (the holding block is about one inch away from the head of the pen cap);
when the pen holding posture is incorrect or the holding block is loosened, the reset spring forces the double-inclined-plane sliding block to reset, the rear end face of the double-inclined-plane sliding block forces the push rod to move backwards, the ball bearings also return to the front end of the spiral chute, and the front end face of the double-inclined-plane sliding block withdraws the pen core into the pen head sleeve through the magnetic sheet.
The electronic posture correcting pen is simple and reasonable in structure, easy to produce and manufacture, and low in cost and free of radiation compared with an electronic posture correcting pen controlled by a sensor-chip, and the posture correcting pen adopts a pure mechanical structure; the accessories are adjustable in groups, so that the device is suitable for people of all ages; the holding block for holding the pen holder is required to be held, so that the pen holder has a forced effect on teenagers with poor self-discipline; with the self-holding structure, the pen point can not displace due to the action of external force during writing, the pen point is stable, and the writing quality is ensured.
Drawings
FIG. 1 is a schematic view of the external structure of a posture correcting pen of the present invention;
FIG. 2 is an axial cross-sectional view of FIG. 1;
FIG. 3 is an enlarged view of the inside of the pen cap of FIG. 2;
FIG. 4 is a schematic view of the structure of the double spiral chute turning block of the posture correcting pen of the present invention;
FIG. 5 is a schematic view of the structure of a double-bevel sliding block of the gesture correcting pen of the invention;
FIG. 6 is a cross-sectional view of the double helical chute of FIG. 1 at a rotor block;
FIG. 7 is a cross-sectional view of the dual ramp slider of FIG. 1;
in the figure: 1 pen cap, 2 pen core, 3 push rod, 4 double inclined plane sliding block, 5 double spiral inclined plane sliding block, 6 upper holding block, 7 lower holding block, 8 slide block, 9 reset spring, 10 replaceable spring, 1-1 pen cap, 1-2 pen cap, 1-3 guide rail, 2-1 pen point, 2-2 core rod, 3-1 push rod front end face, 3-2 limit bulge, 4-1 double inclined plane sliding block front end face, 4-2 double inclined plane sliding block rear end face, 4-3 groove, 5-1 spiral inclined plane.
Detailed Description
As shown in the figure, the gesture correcting pen comprises a pen cap 1, a pen core 2, a push rod 3, a double-inclined-surface sliding block 4, a double-spiral chute rotating block 5, a thumb-index finger holding block 6 and a middle finger holding block 7, wherein the pen cap is formed by connecting a pen cap 1-1 and a pen container 1-2 through buckles, and the pen core is formed by connecting a pen point 2-1 and a core rod 2-2.
The outer surface of the thumb-forefinger holding block is provided with finger grooves matched with the thumb and the forefinger, the finger grooves of the thumb and the forefinger are in a convex shape, the outer surface of the holding block is in a herringbone shape due to the two finger grooves and the convex shape, the thumb and the forefinger are convenient to pinch the holding block, the holding block is squeezed, and the outer surface of the middle finger holding block is provided with the finger grooves matched with the middle finger. The finger groove of the thumb is matched with the position of the ventral surface of the thumb to the right, the finger groove of the index finger is matched with the position of the fingertip of the index finger, the finger groove of the thumb is slightly higher than the finger groove of the index finger, the finger groove of the middle finger is matched with the joint of the middle finger and the root of the nail, and the holding block is about 3 cm (2.9-3.6 cm) away from the pen point.
The double-inclined-plane sliding block is arranged in the pen container sleeve, the front end face 4-1 and the rear end face 4-2 of the double-inclined-plane sliding block are of inclined-plane structures, the push rod is arranged in the pen container sleeve, and the front end face 3-1 of the push rod is of an inclined-plane structure matched with the rear end face of the double-inclined-plane sliding block. The pen core is arranged at the front section of the cavity of the pen head sleeve, the tail end of the core rod of the pen core is of an inclined surface structure matched with the front end surface of the double-inclined-surface sliding block, the inclined surface structure of the core rod is arranged on the front end surface of the double-inclined-surface sliding block, the tail end of the core rod of the pen core is connected with the front end surface of the double-inclined-surface sliding block through a magnetic sheet, and the rear end surface of the double-inclined-surface sliding block presses the front end surface of the push rod.
In the double-inclined-plane sliding block, the included angle between the front end surface and the central axis of the pen point sleeve is larger than the included angle between the rear end surface and the central axis of the pen point sleeve; the included angle between the inclined surface structure of the core rod and the central axis of the nib sleeve is equal to the included angle between the front end surface of the double-inclined-surface sliding block and the central axis of the nib sleeve, the included angle between the inclined surface structure of the push rod and the central axis of the nib sleeve is equal to the included angle between the rear end surface of the double-inclined-surface sliding block and the central axis of the nib sleeve (the direction of the inclined surface of the front end surface of the double-inclined-surface sliding block is opposite to the direction of the inclined surface of the rear end surface of the double-inclined-surface sliding block, and the direction of the inclined surface of the front end surface of the push rod is opposite to the direction of the inclined surface of the rear end surface of the double-inclined-surface sliding block).
A reset spring 9 is arranged between the inner wall of the pen point sleeve and the double-inclined-surface sliding block, and is arranged above the inclined-surface structure of the push rod and is perpendicular to the central axis of the pen point sleeve. One end of the reset spring is fixed on the mounting column on the inner wall of the pen cap, and the other end of the reset spring is arranged in the mounting hole on the outer side wall of the double-inclined-surface sliding block. The inner wall of the pen cap is provided with two raised guide rails 1-3 at the contact position with the double-inclined-surface sliding block, and the two guide rails are oppositely arranged and are parallel to the reset spring; the double-inclined-plane sliding block is respectively provided with a groove 4-3 at the contact position with the two guide rails, the guide rails are arranged in the corresponding grooves, and the double-inclined-plane sliding block moves along the guide rails (namely the direction of restoring spring scaling).
The double spiral chute rotating block is of a hollow cylindrical structure, two spiral chutes 5-1 which are symmetrically arranged are arranged on the outer side wall of the double spiral chute rotating block, the depth of each spiral chute gradually increases from the front end to the rear end, sliding blocks 8 are respectively arranged in the two spiral chutes, and stop blocks for preventing the sliding blocks from sliding out are respectively arranged at the two ends of each spiral chute.
The double-spiral chute rotating block is sleeved on the push rod and can rotate circumferentially relative to the push rod, and a circle of limiting protrusions 3-2 for preventing the double-spiral chute rotating block from sliding out are arranged on the front section of the push rod. The upper holding block and the lower holding block are respectively arranged at the opposite positions of the outer side wall of the pen point sleeve, and respectively penetrate through the side wall of the pen point sleeve to be connected with the two sliding blocks. The replaceable springs 10 are respectively arranged between the sliding block and the upper holding block and between the sliding block and the lower holding block, the sliding block is of a spherical structure, the diameter of the spherical structure is larger than the distance between the two sides of the top of the spiral chute, and the rolling balls can be clamped to prevent the rolling balls from sliding out of the chute. The spherical structure is in rolling connection with the end part of the replaceable spring, and the other end of the replaceable spring is fixedly connected with the upper holding block or the lower holding block.
Simultaneously, the upper holding block and the lower holding block are pressed in opposite directions, so that the sliding blocks with two spherical structures roll from shallow to deep in the spiral chute, the double spiral chute rotating block performs spiral feeding movement towards the nib, and the pushing rod is pushed to move towards the nib.
The roughness of the rear end face of the double-inclined-surface sliding block is smaller, and the roughness of the front end face contacted with the pen core is larger. The inclined plane of the rear end face of the double-inclined-plane sliding block is larger, the sliding friction coefficient between the rear end face of the double-inclined-plane sliding block and the front end face of the push rod is mu, and the included angle between the rear end face of the double-inclined-plane sliding block and the axis of the pen holder is theta 2 To meet tan theta 2 >Mu, the motion between the double-inclined-plane sliding block and the pushing rod is smooth,is not affected by self-locking of the inclined plane. The front end face of the double-inclined-face sliding block has smaller inclined face, and the sliding friction coefficient between the front end face of the double-inclined-face sliding block and the rear end face of the core bar is mu 1 The included angle between the front end surface of the double-inclined-surface sliding block and the axis of the pen holder is theta 1 To meet tan theta 1 ＜μ 1 The pen point is characterized in that the pen point is provided with a double-inclined-plane sliding block, the pen point is provided with a pen core, the pen core is provided with a pen core sliding block, the pen core sliding block is arranged between the pen core sliding block and the pen core sliding block, and the pen core sliding block is arranged between the pen core sliding block and the pen core sliding block.
Setting the maximum telescopic distance of the pen point as l, and setting the contact surface angle of the double-inclined-surface sliding block and the pen point (namely the included angle between the front end surface of the double-inclined-surface sliding block and the axis of the pen holder) as theta 1 The maximum sliding distance between the double-inclined-surface sliding block and the push rod is l 1 ＝ltanθ 1 The contact surface angle of the double-inclined-surface sliding block and the pushing rod (namely the included angle between the rear end surface of the double-inclined-surface sliding block and the axis of the pen holder) is theta 2 The maximum pushing distance of the push rod is l 3 ＝l 1 /tanθ 2 。
The maximum diameter (i.e. the shallowest groove depth) of the spiral chute is r max The minimum diameter (i.e. the depth of the deepest groove) is r min The diameter of the sliding block with the spherical structure is r, the sliding block corresponds to the position of the maximum diameter of the spiral chute at the initial position, and at the moment, the angle between the spiral chute and the normal plane of the penholder isThe rising angle of the spiral chute on the double spiral chute rotating block is +.>
Claims (6)
1. The gesture correcting pen is characterized by comprising a pen cap (1), a pen core (2), a push rod (3), a double-inclined-plane sliding block (4), a double-spiral chute rotating block (5), an upper holding block (6) and a lower holding block (7), wherein the pen cap is formed by connecting a pen point sleeve (1-1) and a pen container sleeve (1-2), the pen core is formed by connecting a pen point (2-1) and a core rod (2-2), the double-inclined-plane sliding block is arranged in the pen head sleeve, and the front end surface (4-1) and the rear end surface (4-2) of the double-inclined-plane sliding block are of an inclined plane structure;
the push rod is arranged in the pen container sleeve, and the front end surface (4-1) of the push rod is of an inclined surface structure matched with the rear end surface of the double-inclined-surface sliding block; the pen core is arranged at the front section of the cavity of the pen head sleeve, the tail end of the core rod of the pen core is of an inclined surface structure matched with the front end surface of the double-inclined-surface sliding block, the inclined surface structure of the core rod is arranged on the front end surface of the double-inclined-surface sliding block, and the rear end surface of the double-inclined-surface sliding block abuts against the front end surface of the push rod;
the double spiral chute rotating block is of a hollow cylindrical structure, two spiral chutes (5-1) which are symmetrically arranged are arranged on the outer side wall of the double spiral chute rotating block, the depth of each spiral chute is gradually increased from the front end to the rear end, and sliding blocks (8) are respectively arranged in the two spiral chutes; the double-spiral chute rotating block is sleeved on the push rod and can rotate circumferentially relative to the push rod, and a circle of limiting protrusions (3-2) for preventing the double-spiral chute rotating block from sliding out are arranged on the front section of the push rod;
the upper holding block and the lower holding block are respectively arranged at the opposite positions of the outer side wall of the pen point sleeve, and the upper holding block and the lower holding block respectively penetrate through the side wall of the pen point sleeve to be connected with the two sliding blocks; simultaneously, the upper holding block and the lower holding block are pressed in opposite directions, so that the two sliding blocks move in the spiral chute, the double-spiral chute rotating block moves forwards, and then the push rod pushes the pen core to extend out of the pen cap through the double-inclined-surface sliding blocks;
a reset spring (9) is arranged between the inner wall of the pen point sleeve and the double-inclined-surface sliding block, and is arranged above the inclined-surface structure of the push rod and is perpendicular to the central axis of the pen point sleeve;
the inner wall of the pen point sleeve is provided with two raised guide rails (1-3) at the contact position with the double-inclined-surface sliding block, and the two guide rails are oppositely arranged and are parallel to the reset spring; grooves (4-3) are respectively formed in the contact positions of the double-inclined-surface sliding blocks and the two guide rails, and the guide rails are arranged in the corresponding grooves;
in the double-inclined-plane sliding block, the included angle between the front end surface and the central axis of the pen point sleeve is larger than the included angle between the rear end surface and the central axis of the pen point sleeve; the included angle between the inclined surface structure of the core rod and the central axis of the nib sleeve is equal to the included angle between the front end surface of the double-inclined-surface sliding block and the central axis of the nib sleeve, and the included angle between the inclined surface structure of the push rod and the central axis of the nib sleeve is equal to the included angle between the rear end surface of the double-inclined-surface sliding block and the central axis of the nib sleeve;
and a replaceable spring (10) is arranged between the sliding block and the upper holding block and between the sliding block and the lower holding block respectively.
2. The gesture correcting pen of claim 1, wherein the sliding block is of a spherical structure, the spherical structure is in rolling connection with the end part of the replaceable spring, and the other end of the replaceable spring is fixedly connected with the upper holding block or the lower holding block.
3. The posture correcting pen according to claim 1, wherein the core rod end of the pen core is connected with the front end face of the double-inclined-plane sliding block through a magnetic sheet.
4. The gesture correcting pen of claim 1, wherein the outer surface of the upper grip block is provided with finger grooves matched with the thumb and the index finger, and the outer surface of the lower grip block is provided with finger grooves matched with the middle finger.
5. The posture correcting pen of claim 2, wherein the diameter of the spherical structure is greater than the distance between the two sides of the top of the spiral chute.
6. The posture correcting pen according to claim 1, wherein the pen point sleeve and the pen container sleeve are connected through a buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790346.4A CN108749400B (en) | 2018-07-18 | 2018-07-18 | Posture correcting pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790346.4A CN108749400B (en) | 2018-07-18 | 2018-07-18 | Posture correcting pen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108749400A CN108749400A (en) | 2018-11-06 |
| CN108749400B true CN108749400B (en) | 2024-01-02 |
Family
ID=63970250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810790346.4A Active CN108749400B (en) | 2018-07-18 | 2018-07-18 | Posture correcting pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108749400B (en) |
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| CN104417180A (en) * | 2013-09-02 | 2015-03-18 | 陈孟亮 | Pen holding posture correcting pen |
| WO2015180405A1 (en) * | 2014-05-30 | 2015-12-03 | 刘保伸 | Pen holding structure |
| CN105904879A (en) * | 2016-05-09 | 2016-08-31 | 淄博职业学院 | Intelligent pencil capable of automatically controlling lead discharging and lead discharging length |
| CN209096340U (en) * | 2018-07-18 | 2019-07-12 | 扬州工业职业技术学院 | Posture-correcting pen |
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| Publication number | Publication date |
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| CN108749400A (en) | 2018-11-06 |
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