CN109278439B - Multifunctional double-head pen - Google Patents
Multifunctional double-head pen Download PDFInfo
- Publication number
- CN109278439B CN109278439B CN201811108914.4A CN201811108914A CN109278439B CN 109278439 B CN109278439 B CN 109278439B CN 201811108914 A CN201811108914 A CN 201811108914A CN 109278439 B CN109278439 B CN 109278439B
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- pen
- pen body
- holder
- rotating
- slot
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- 238000005259 measurement Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000012780 transparent material Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K27/00—Multiple-point writing implements, e.g. multicolour; Combinations of writing implements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/56—Gauges for measuring angles or tapers, e.g. conical calipers
- G01B3/563—Protractors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Drawing Aids And Blackboards (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a multifunctional double-head pen, which comprises a pen seat and a pen body; the pen holder comprises a first pen holder and a second pen holder, the rear end of the first pen holder is vertically connected with the right end of the second pen holder, and a slot is formed in the end face of the front end of the first pen holder; the pen body comprises a first pen body and a second pen body, the first pen body is movably inserted into the slot, and the second pen body is rotationally connected with the second pen seat and can be switched between a first position and a second position; when the pen is switched to the first position, the second pen body and the first pen body are opposite left and right and are mutually adjacent, and when the pen is switched to the second position, the second pen body and the first pen body are mutually far away and form an included angle. The effect is as follows: on the one hand, through setting up first pen body and second pen body for people can hold two pens simultaneously when writing, thereby need not frequent getting and put the change, facilitate the use, on the other hand has two kinds of different modes of holding, and convenient different crowds select suitable modes of holding to write, are favorable to guaranteeing writing speed and quality.
Description
Technical Field
The invention relates to the field of stationery, in particular to a multifunctional double-head pen.
Background
The pen is a writing tool frequently used in life by people, and concretely comprises a pencil, a ball pen, a neutral pen, a pen and the like. The existing pens are generally arranged singly, only one color of font can be written, the application is single, however, people have different application requirements in many cases, the fonts need to be distinguished, for example, students need to distinguish important points for convenient warm learning when taking notes, office staff need to distinguish modification parts when writing and modifying manuscripts, and the like, under the conditions, one pen obviously cannot meet the requirements of work and study, so that people need to repeatedly pick and place different pens, and the use is very inconvenient. .
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the invention aims to provide a multifunctional double-head pen.
To achieve the above object, in one aspect, a multifunctional dual-head pen according to an embodiment of the present invention includes:
the pen holder comprises a first pen holder and a second pen holder, the rear end of the first pen holder is vertically connected with the right end of the second pen holder, and a slot is formed in the end face of the front end of the first pen holder;
The pen body comprises a first pen body and a second pen body, the first pen body is movably inserted into the slot, and the second pen body is rotationally connected with the second pen seat and can be switched between a first position and a second position;
when the second pen body is switched to the first position, the second pen body is opposite to the first pen body in a left-right direction and is close to the first pen body, and when the second pen body is switched to the second position, the second pen body and the first pen body are far away from each other and form an included angle.
According to the multifunctional double-head pen provided by the embodiment of the invention, the multifunctional double-head pen comprises the pen holder and the pen body, the pen holder comprises the first pen holder and the second pen holder, the first pen holder is vertically connected with the second pen holder, the pen body comprises the first pen body and the second pen body, the first pen body is movably connected with the first pen holder, the second pen body is rotatably connected with the second pen holder, the second pen body can be switched between a first position and a second position, the first pen body and the second pen body are mutually adjacent when being switched to the first position, and the first pen body and the second pen body are mutually far away when being switched to the second position. So, through configuration first pen body and second pen body, people can hold two pens that need use simultaneously when writing, at the in-process of writing, need not frequent getting and put the change different pens, be favorable to improving writing efficiency, simultaneously, second pen has two kinds of states relative to first pen body, corresponding, just also have two kinds of modes of holding to for people select, make things convenient for the crowd of different habits to select and be fit for oneself to hold the mode of writing, thereby improve comfort level, guarantee to write speed and quality.
In addition, the multifunctional dual-head pen according to the above embodiment of the present invention may have the following additional technical features:
According to one embodiment of the invention, a chute extending along the front-rear direction is oppositely arranged on the outer wall of the first pen holder left and right, and the chute is communicated with the slot;
The first pen body comprises a sliding end, the sliding end is inserted in the slot, a mounting hole is formed in the outer wall of the first pen body, a limiting slide rod is arranged in the mounting hole in a penetrating mode, and two ends of the limiting slide rod penetrate out of the mounting hole and are in sliding fit with the two sliding grooves.
According to one embodiment of the present invention, the second pen stand comprises:
the U-shaped seat comprises a body and a rotating gap defined by the body;
the second pen body comprises a rotating end, the rotating end is provided with a rotating piece, and the rotating piece is arranged in the rotating gap and is rotationally connected with the body.
According to one embodiment of the invention, the second pen holder further comprises an extension plate, and an inverted U-shaped clamping seat is arranged on the upper surface of the extension plate;
the body comprises an upper arm plate and a lower arm plate which is vertically opposite to the upper arm plate;
the right side wall of the extension plate is connected with the left side wall of the lower arm plate.
In one embodiment according to the present invention, further comprising a fan-shaped connection plate made of a transparent material, comprising:
the first side wall is connected with the left side wall of the first pen holder;
A second side wall connected to the front side wall of the extension plate;
The upper surface of the fan-shaped connecting plate is flush with the upper surfaces of the lower arm plate and the extension plate, and the upper surface of the fan-shaped connecting plate is provided with angle measurement scale marks for measuring angles, and the angle measurement scale marks are correspondingly provided with scale values.
According to one embodiment of the invention, the upper arm plate is provided with a groove, the bottom wall of the groove is provided with a threaded connection hole communicated with the rotating gap, and a threaded locking piece is arranged in the threaded connection hole in a penetrating manner and used for locking and fixing the rotating piece.
According to one embodiment of the invention, a torsion spring is connected between the rotating member and the body.
According to one embodiment of the invention, the first pen body is a pen and the second pen body is a ball point pen.
Drawings
FIG. 1 is a schematic view of a structure in a state of an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of another embodiment of the present invention;
fig. 3 is a schematic structural view of a pen stand according to an embodiment of the present invention.
Reference numerals:
A pen holder 10;
A first pen stand 11;
A slot 111;
a chute 112;
A second pen stand 12;
an upper arm plate 121;
grooves 1211;
A threaded locking member 1212;
a lower arm plate 122;
A rotational gap 123;
An extension plate 13;
A U-shaped clamping seat 131;
a pen body 20;
a first pen body 21;
a sliding end 211;
A limit slide bar 2111;
a second pen body 22;
a rotating end 221;
A rotating member 2211;
A fan-shaped connection plate 30;
The angle is measured on graduation marks 31.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 3, the embodiment of the present invention provides a multifunctional dual-head pen, which comprises a pen holder 10 and a pen body 20;
Specifically, the pen holder 10 includes a first pen holder 11 and a second pen holder 12, wherein the rear end of the first pen holder 11 is vertically connected with the right end of the second pen holder 12, and a slot 111 is formed on the front end surface of the first pen holder 11;
The pen body 20 includes a first pen body 21 and a second pen body 22, wherein the first pen body 21 and the second pen body 22 may be of the same or different types, for example, the first pen body 21 may be a pen, and the second pen body 22 may be a ball point pen; the first pen body 21 can also adopt a neutral pen, the second pen body 22 adopts a ball pen, and the first pen body 21 and the second pen body 22 both adopt neutral pens and the like, so that the selection and the use of people are facilitated according to the use requirements; the first pen body 21 is movably inserted into the slot 111, so that the depth of the first pen body 21 inserted into the slot 111 can be adjusted, and the second pen body 22 is rotatably connected with the second pen seat 12 and can be switched between a first position and a second position;
when the second pen body 22 is switched to the first position, the second pen body 22 is opposite to the first pen body 21 in the left-right direction and is adjacent to the first pen body, and when the second pen body 22 is switched to the second position, the second pen body 22 is separated from the first pen body 21, and an included angle is formed.
More specifically, in the prior art, the writing pens are all arranged in a single body, one pen has only one color, and can be assembled into one pen type, and when pens with different pen types or the same pen type and different colors are needed to be used, the writing pens can be realized only through repeated and frequent pen taking and replacing, so that great inconvenience is brought to the use. In this embodiment, the pen body 20 includes the first pen body 21 and the second pen body 22, so that two pens are simultaneously provided, and the two pens can be the same pen type, different colors or different pen types of the first pen body 21 and the second pen body 22, so that people can hold the two pens to write at the same time, and then, when in use, people do not need to frequently take and put the pen, thereby improving the writing efficiency. However, due to the habit of holding a single pen and the gesture of holding the single pen which are formed by the small hands or years, the two pens are simultaneously held uncomfortable or the writing speed and quality are affected, so that when the pen is used, the crowd only needs to switch the second pen body 22 to the second position, so that the second pen body 22 and the first pen body 21 are separated from each other to form a certain included angle, and only one pen can be held for writing, so that the habit of holding the pen is inconvenient, the writing speed and quality are not affected, and in addition, the height of the pen points of the two pens from the paper surface is different due to the fact that a certain included angle is formed between the first pen body 21 and the second pen body 22, therefore, the first pen body 21 cannot influence the writing of the second pen body 22, and the second pen body 22 cannot influence the writing of the first pen body 21. For a person who can hold two pens simultaneously and can adapt to holding two pens for writing, when in use, the two pens can be held simultaneously, and when writing, the positions of the two pens relative to the paper surface are adjusted by adjusting the depth of the first pen body 21 inserted into the slot 111, for example, when the first pen body 21 is needed for writing, the depth of the first pen body 21 inserted into the slot 111 can be reduced appropriately, so that the pen point of the first pen body 21 is closer to the paper, and when holding two pens for writing, the second pen body 22 can not influence the writing of the first pen body 21; when the second pen body 22 is needed to be used for writing, the depth of the first pen body 21 inserted into the slot 111 can be increased appropriately, so that the pen point of the second pen body 22 is closer to the paper, and thus, when the two pens are held for writing, the first pen body 21 cannot influence the writing of the second pen body 22.
According to the multifunctional double-ended pen provided by the embodiment of the invention, the multifunctional double-ended pen comprises a pen holder 10 and a pen body 20, wherein the pen holder 10 comprises a first pen holder 11 and a second pen holder 12, the first pen holder 11 is vertically connected with the second pen holder 12, the pen body 20 comprises a first pen body 21 and a second pen body 22, the first pen body 21 is movably connected with the first pen holder 11, the second pen body 22 is rotatably connected with the second pen holder 12, the second pen body 22 can be switched between a first position and a second position, the first pen body 21 and the second pen body 22 are mutually adjacent when being switched to the first position, and the first pen body 21 and the second pen body 22 are mutually far away when being switched to the second position. So, through configuration first pen body 21 and second pen body 22, people can hold two pens that need use simultaneously when writing, at the in-process of writing, need not frequent getting put change different pens, be favorable to improving writing efficiency, simultaneously, second pen body 22 has two kinds of states for first pen body 21, and is corresponding, just has two kinds of modes of holding to supply people to select, make things convenient for the crowd of different habits to select to be fit for oneself to hold the pen mode and write, thereby improve comfort level, guarantee writing speed and quality.
Advantageously, in one embodiment of the present invention, a sliding groove 112 extending along a front-rear direction is formed on the outer wall of the first pen holder 11 oppositely from left to right, and the sliding groove 112 is communicated with the slot 111;
The first pen body 21 includes a sliding end 211, the sliding end 211 is inserted into the slot 111, a mounting hole is formed in an outer wall of the sliding end, a limiting sliding rod 2111 is arranged in the mounting hole in a penetrating manner, and two ends of the limiting sliding rod 2111 penetrate out of the mounting hole and are in sliding fit with the two sliding grooves 112.
The size of the sliding slot 112 is matched with the size of the limit sliding rod 2111, so when the depth of the first pen body 21 inserted into the slot 111 is adjusted, the first pen body 21 only moves along the depth direction of the slot 111 and does not rotate, on one hand, the first pen body 21 can be limited, the first pen body 21 is prevented from being separated from the slot 111 to affect the use in the process of pulling the first pen body 21 outwards, and on the other hand, when the first pen body 21 is a pen, the first pen body 21 does not rotate in the process of adjusting the depth, so that the normal writing of the pen is not affected.
Advantageously, in one embodiment of the invention, the second pen holder 12 comprises a U-shaped holder comprising a body and a rotational gap 123 defined by the body;
The second pen body 22 includes a rotating end 221, the rotating end 221 is provided with a rotating member 2211, and the rotating member 2211 is disposed in the rotating gap 123 and is rotatably connected with the body.
In this way, the second pen body 22 is convenient to switch between the first position and the second position, so that the pen is convenient for different people to use.
Advantageously, in another embodiment of the present invention, the second pen holder 12 further comprises an extension plate 13, and an inverted U-shaped card holder 131 is disposed on the upper surface of the extension plate 13;
the body comprises an upper arm plate 121 and a lower arm plate 122 which is opposite to the upper arm plate 121 up and down;
The right side wall of the extension plate 13 is connected to the left side wall of the lower arm plate 122.
That is, the extension board 13 is disposed on the lower arm board 122 of the body, so that the overall length of the extension board 13 and the lower arm board 122 is longer than that of the upper arm board 121, and then the inverted U-shaped holder 131 on the extension board 13 can be used for fixing other pens, for example, a gel-ink pen, a ball-point pen, etc. can be clamped and hooked on the U-shaped holder 131, which is convenient for integrally storing the required pens and is also convenient for carrying out.
Advantageously, in some embodiments of the invention, further comprising a fanning strip 30, fanning strip 30 is made of a transparent material, comprising:
A first side wall connected with the left side wall of the first pen holder 11;
A second side wall connected to the front side wall of the extension plate 13;
The upper surface of the fan-shaped connection plate 30 is flush with the upper surfaces of the lower arm plate 122 and the extension plate 13, and the upper surface is provided with an angle measurement scale 31 for measuring an angle, and the angle measurement scale 31 is correspondingly provided with a scale value (not shown in the figure).
Thus, by arranging the fan-shaped connecting plate 30, on one hand, the connection strength of the first pen holder 11 and the second pen holder 12 can be enhanced, and on the other hand, the fan-shaped connecting plate 30 can also be used as a small-sized protractor, so that the angle measurement can be conveniently carried out when people use the angle measuring device. Since the first pen holder 11 and the second pen holder 12 are vertically arranged, the angle of the small-sized protractor is measured in an angle range of 0 to 90 degrees.
And for angles greater than 90 degrees, the calculation can be performed according to the calculation formula of the complementary angle.
Advantageously, in some embodiments of the present invention, a groove 1211 is formed on the upper arm plate 121, a threaded connection hole communicating with the rotation gap 123 is formed on the bottom wall of the groove 1211, and a threaded locking member 1212 is disposed in the threaded connection hole, where the threaded locking member 1212 is used to lock and fix the rotation member 2211.
That is, the rotation member 2211 can be locked and fixed by the screw locking member 1212, and since the depth of the first pen body 21 inserted into the slot 111 is adjustable, the second pen body 22 is adjusted to a proper position and locked and fixed by the screw locking member 1212, the first pen body 21 and the second pen body 22 can be used as compasses, thereby making the invention more practical
Advantageously, in some embodiments of the present invention, a torsion spring is connected between the rotating member 2211 and the body, so that, on one hand, for a person who is used to hold a single pen, the pen that is not held can be held against the finger by the force generated by the torsion spring, thereby preventing the pen from shaking during writing to affect writing, and on the other hand, when not in use, the second pen body 22 can be kept at the first position by the force generated by the torsion spring, thereby making the first pen body 21 and the second pen body 22 adjacent to each other, thereby reducing the occupied external space, and facilitating storage and carrying.
It should be noted that the pen holder is made of a lightweight plastic material, so that it is light in weight and convenient to use, and is equipped with a cap (not shown) to cover the first pen body 21 and the second pen body 22 when not in use.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the invention.
Claims (4)
1. A multifunctional dual-headed pen, comprising:
the pen holder comprises a first pen holder and a second pen holder, the rear end of the first pen holder is vertically connected with the right end of the second pen holder, and a slot is formed in the end face of the front end of the first pen holder;
The pen body comprises a first pen body and a second pen body, the first pen body is movably inserted into the slot, and the second pen body is rotationally connected with the second pen seat and can be switched between a first position and a second position;
when the second pen body is switched to the first position, the second pen body is opposite to the first pen body in a left-right direction and is close to the first pen body, and when the second pen body is switched to the second position, the second pen body is far away from the first pen body and forms an included angle;
the U-shaped seat comprises a body and a rotating gap defined by the body;
The second pen body comprises a rotating end, the rotating end is provided with a rotating piece, and the rotating piece is arranged in the rotating gap and is in rotating connection with the body;
the second pen holder further comprises an extension plate, and an inverted U-shaped clamping holder is arranged on the upper surface of the extension plate;
the body comprises an upper arm plate and a lower arm plate which is vertically opposite to the upper arm plate;
The right side wall of the extension plate is connected with the left side wall of the lower arm plate;
A torsion spring is connected between the rotating piece and the body;
still include fan-shaped connecting plate, fan-shaped connecting plate is made by transparent material, include:
the first side wall is connected with the left side wall of the first pen holder;
A second side wall connected to the front side wall of the extension plate;
The upper surface of the fan-shaped connecting plate is flush with the upper surfaces of the lower arm plate and the extension plate, and the upper surface of the fan-shaped connecting plate is provided with angle measurement scale marks for measuring angles, and the angle measurement scale marks are correspondingly provided with scale values.
2. The multifunctional double-ended pen according to claim 1, wherein a chute extending along the front-rear direction is oppositely arranged on the outer wall of the first pen holder in the left-right direction, and the chute is communicated with the slot;
The first pen body comprises a sliding end, the sliding end is inserted in the slot, a mounting hole is formed in the outer wall of the first pen body, a limiting slide rod is arranged in the mounting hole in a penetrating mode, and two ends of the limiting slide rod penetrate out of the mounting hole and are in sliding fit with the two sliding grooves.
3. The multifunctional double-end pen according to claim 1, wherein a groove is formed in the upper arm plate, a threaded connection hole which is communicated with the rotating gap is formed in the bottom wall of the groove, a threaded locking piece is arranged in the threaded connection hole in a penetrating mode, and the threaded locking piece is used for locking and fixing the rotating piece.
4. The multi-functional double-ended pen according to claim 1, wherein said first pen body is a pen and said second pen body is a ball-point pen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108914.4A CN109278439B (en) | 2018-09-21 | 2018-09-21 | Multifunctional double-head pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108914.4A CN109278439B (en) | 2018-09-21 | 2018-09-21 | Multifunctional double-head pen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109278439A CN109278439A (en) | 2019-01-29 |
| CN109278439B true CN109278439B (en) | 2024-06-14 |
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ID=65181434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811108914.4A Active CN109278439B (en) | 2018-09-21 | 2018-09-21 | Multifunctional double-head pen |
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| Country | Link |
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| CN (1) | CN109278439B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2086208U (en) * | 1990-12-07 | 1991-10-09 | 姜锡瑞 | Multi-functional compasses pen |
| CN103112278A (en) * | 2011-11-17 | 2013-05-22 | 昌于翔 | Pen with double heads |
| CN205997592U (en) * | 2016-07-18 | 2017-03-08 | 彭朝昊 | A kind of mathematics is with can the compasses that adjust of quick high accuracy |
| CN209634109U (en) * | 2018-09-21 | 2019-11-15 | 冯诗婕 | Multifunctional writing appliance |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8301410U1 (en) * | 1983-01-20 | 1983-05-26 | Berendsohn Ag, 2000 Hamburg, De | WRITING DEVICE |
| CN2837100Y (en) * | 2005-11-16 | 2006-11-15 | 李辉 | A multifunctional pen |
| CN200995539Y (en) * | 2007-01-24 | 2007-12-26 | 张瑶 | Writing pen double pen nibs |
| CN103182886A (en) * | 2013-04-10 | 2013-07-03 | 蔡旭升 | Double-head pen |
-
2018
- 2018-09-21 CN CN201811108914.4A patent/CN109278439B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2086208U (en) * | 1990-12-07 | 1991-10-09 | 姜锡瑞 | Multi-functional compasses pen |
| CN103112278A (en) * | 2011-11-17 | 2013-05-22 | 昌于翔 | Pen with double heads |
| CN205997592U (en) * | 2016-07-18 | 2017-03-08 | 彭朝昊 | A kind of mathematics is with can the compasses that adjust of quick high accuracy |
| CN209634109U (en) * | 2018-09-21 | 2019-11-15 | 冯诗婕 | Multifunctional writing appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109278439A (en) | 2019-01-29 |
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