CN206544402U - A kind of drop-proof two-color water color pencil - Google Patents

A kind of drop-proof two-color water color pencil Download PDF

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Publication number
CN206544402U
CN206544402U CN201720104070.0U CN201720104070U CN206544402U CN 206544402 U CN206544402 U CN 206544402U CN 201720104070 U CN201720104070 U CN 201720104070U CN 206544402 U CN206544402 U CN 206544402U
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CN
China
Prior art keywords
penholder
spring
gear frame
ring
fixed plate
Prior art date
Application number
CN201720104070.0U
Other languages
Chinese (zh)
Inventor
杨艾云
Original Assignee
湖南城市学院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 湖南城市学院 filed Critical 湖南城市学院
Priority to CN201720104070.0U priority Critical patent/CN206544402U/en
Application granted granted Critical
Publication of CN206544402U publication Critical patent/CN206544402U/en

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Abstract

A kind of drop-proof two-color water color pencil, including the first penholder, first pen-cartridge device, first gear frame apparatus, second penholder, second pen-cartridge device, second gear frame apparatus, first penholder is provided with the first fixed plate, first connector, first spring, first leans plate, connect frame, first pen-cartridge device includes the first pen core, first nib, first gear frame apparatus includes the first retainer ring, first locating ring, first gear frame, second spring, first limits ring and grips block, second penholder is provided with the second fixed plate, 3rd spring, second leans plate, second connector, second pen-cartridge device includes the second pen core and the second nib, second gear frame apparatus includes the second retainer ring, second locating ring, 4th spring, second gear frame, second grips block and the second restriction ring.The utility model when in use packs up gear frame, when not in use pulls out gear frame, it is blocked nib, and then when it is dropped on ground, preferable protective effect is played to nib.

Description

A kind of drop-proof two-color water color pencil

Technical field

The utility model is related to watercolor pencil technical field, more particularly, to a kind of drop-proof two-color water color pencil.

Background technology

Watercolor pencil is widely used in a variety of applications because its is lucuriant in design.But when watercolor pencil is dropped on ground, due to Its nib, which is touched, is easily caused nib damage on ground, and then watercolor pencil can not be continuing with, and influence user continues Painted, and need to buy again, increase cost.

Therefore, it is necessary to provide a kind of new technical scheme to overcome drawbacks described above.

Utility model content

The purpose of this utility model, which is that offer is a kind of, can effectively solve the drop-proof two-color water color pencil of above-mentioned technical problem.

To reach the purpose of the utility model, adopt the following technical scheme that:

A kind of drop-proof two-color water color pencil, the drop-proof two-color water color pencil includes the first penholder, is arranged at described first The first pen-cartridge device in penholder, the first gear frame apparatus being arranged on the outside of first penholder, on first penholder Second penholder of side, the second pen-cartridge device being arranged in second penholder, second be arranged on the outside of second penholder Frame apparatus is kept off, first penholder, which is provided with, is contained in its internal some first fixed plate, below first penholder The first connector, the first spring above first fixed plate, first above first spring lean Plate, connection frame above plate is leaned positioned at described first, first pen-cartridge device includes the first pen core, positioned at described the first stroke The first nib below core, the first gear frame apparatus includes the first retainer ring, first below first retainer ring Locating ring, first gear frame, the second spring above the first gear frame, the first restriction for being arranged at the first gear inframe Ring and the gripping block on the left of the first gear frame, second penholder, which is provided with, is contained in its internal some second fixation Plate, the 3rd spring below first fixed plate, second below the 3rd spring lean plate, positioned at described The second connector above second penholder, second pen-cartridge device includes the second pen core and above second pen core Second nib, the second gear frame apparatus includes the second retainer ring, the second locating ring above second retainer ring, received The 4th spring that is dissolved in second locating ring, the second gear frame above the 4th spring, it is arranged at described second Second on the left of gear frame grips block and is contained in the second restriction ring of the second gear inframe.

First fixed plate is provided with two and places up and down, and first fixed plate is in cylinder, and described first fixes The side of plate is fixedly connected with the inner surface of first penholder, and first connector is in hollow round table-like, and described first The upper surface of connector is fixedly connected with the lower surface of first penholder, and the connection frame is in the cylinder that cross section is annulus, The lower end of the connection frame is contained in first penholder and is fixedly connected with the inner surface of first penholder, described first Plate is leaned in cylinder, described first leans the side of plate and the inner surface of first penholder is slidably connected, first bullet Spring is provided with two, and the upper end of first spring leans plate with described first and is fixedly connected, the lower end of first spring and institute The first fixed plate is stated to be fixedly connected.

First pen core is in cylinder, and the upper end of first pen core acts against the described first lower surface for leaning plate On, first pen core runs through the upper and lower surface of first fixed plate and is slidably connected with it, the upper end of first nib On the lower end for acting against first pen core, first nib runs through the upper and lower surface of first connector and slided with it Connection.

First retainer ring is in the cylinder that cross section is annulus, inner surface and described the first stroke of first retainer ring The outer surface of bar is fixedly connected, and first locating ring is in the cylinder that cross section is annulus, the upper surface of first locating ring It is fixedly connected with the lower surface of first retainer ring, the second spring is provided with two and respectively positioned at first penholder The left and right sides, the upper end of the second spring is fixedly connected with first retainer ring, the lower end of the second spring with it is described First gear frame is fixedly connected, and the second spring is contained in first locating ring, and the first gear frame is circle in cross section The cylinder of ring, the outer surface of the inner surface of the first gear frame and first penholder is slidably connected, outside the first gear frame Surface and the inner surface of first locating ring are slidably connected, and described first limits ring limits ring in annular shape, described first Outer surface is fixedly connected with the inner surface of the first gear frame, and described first limits the upper surface of ring obliquely, and described first Limit on the side that first connector can be acted against on ring, the left-handed watch of the right-hand member and the first gear frame for gripping block Face is fixedly connected.

Second fixed plate is provided with several, and second fixed plate is in cylinder, the appearance of second fixed plate Face is fixedly connected with the inner surface of second penholder, and the 3rd spring is provided with two, and the 3rd spring is in vertical shape, institute The upper end for stating the 3rd spring is fixedly connected with second fixed plate, and the lower end of the 3rd spring leans plate with described second and consolidated Fixed connection, second connector is in hollow round table-like, and the lower surface of second connector is upper with first penholder Surface is fixedly connected.

Second pen core is in cylinder, and second pen core runs through the upper and lower surface of second fixed plate and slided with it Dynamic connection, the lower end of second pen core acts against described second and leaned on plate, and the lower end of second nib acts against described On second pen core, second nib runs through the upper and lower surface of second connector and is slidably connected with it.

Second retainer ring in cross section be annulus cylinder, the inner surface of second retainer ring with described second The outer surface of bar is fixedly connected, and second locating ring is in the cylinder that cross section is annulus, the lower surface of second locating ring It is fixedly connected with the upper surface of second retainer ring, the 4th spring is provided with two, the lower end of the 4th spring and institute State the second retainer ring to be fixedly connected, the upper end of the 4th spring is fixedly connected with the second gear frame, the second gear frame is in Cross section is the cylinder of annulus, and the lower end of the second gear frame is contained in second locating ring, the second gear frame it is interior Surface and the outer surface of second penholder are slidably connected, the outer surface of the second gear frame and the interior table of second locating ring Face is slidably connected, and the outer surface of the second restriction ring is fixedly connected with the inner surface of the second gear frame, and described second limits The lower surface of ring is oblique.

Compared with prior art, the utility model has the advantages that:The utility model drop-proof two-color water color pencil Gear frame is packed up when in use, gear frame is pulled out when not in use, it is blocked nib, and then when it is dropped on ground, it is right Nib plays preferable protective effect, and nib will not touch ground, so that the watercolor pencil foundered on ground can be continuing with, Shatter-resistant is good.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model drop-proof two-color water color pencil.

Embodiment

Clearly complete explanation is made to the utility model drop-proof two-color water color pencil below in conjunction with accompanying drawing.

As shown in figure 1, the utility model drop-proof two-color water color pencil includes the first penholder 1, is arranged at first penholder 1 Interior the first pen-cartridge device 2, the first gear frame apparatus 3 for being arranged at the outside of the first penholder 1, on first penholder 1 Second penholder 4 of side, the second pen-cartridge device 5 being arranged in second penholder 4, it is arranged at the outside of second penholder 4 Second gear frame apparatus 6.

As shown in figure 1, first penholder 1 is in the cylinder that cross section is annulus, first penholder 1 is provided with and is contained in Its internal some first fixed plate 11, the first connector 12 positioned at the lower section of the first penholder 1, fix positioned at described first First spring 15 of the top of plate 11, first above first spring 15 lean plate 14, lean plate positioned at described first The connection frame 13 of 14 tops.First fixed plate 11 is provided with two and places up and down, and first fixed plate 11 is in cylinder, The side of first fixed plate 11 is fixedly connected with the inner surface of first penholder 1.First connector 12 is in hollow It is round table-like, the upper surface of first connector 12 is fixedly connected with the lower surface of first penholder 1.The connection frame 13 In the cylinder that cross section is annulus, the lower end of the connection frame 13 be contained in first penholder 1 and with first penholder 1 Inner surface be fixedly connected, it is described connection frame 13 outer surface be provided with screw thread.Described first leans plate 14 in cylinder, and described the One leans the side of plate 14 and the inner surface of first penholder 1 is slidably connected so that described first leans plate 14 can be in institute State and moved up and down in the first penholder 1.First spring 15 is provided with two, and the upper end of first spring 15 is pushed up with described first Backup plate 14 is fixedly connected, and the lower end of first spring 15 is fixedly connected with first fixed plate 11.

As shown in figure 1, first pen-cartridge device 2 includes the first pen core 21, the positioned at the lower section of first pen core 21 One nib 22.First pen core 21 is in cylinder, stores pen and ink in first pen core 21, first pen core 21 it is upper End acts against described first and leaned on the lower surface of plate 14, and first pen core 21 runs through the upper following table of first fixed plate 11 Face and it is slidably connected with it so that first pen core 21 can be moved up and down.The upper end of first nib 22 acts against institute On the lower end for stating the first pen core 21, the pen and ink in first pen core 21 can be transferred in first nib 22.Described One nib 22 runs through the upper and lower surface of first connector 12 and is slidably connected with it.

As shown in figure 1, the first gear frame apparatus 3 includes the first retainer ring 31, positioned at the lower section of the first retainer ring 31 The first locating ring 32, first gear frame 34, the second spring 33 positioned at the top of the first gear frame 34, be arranged at the first gear First in frame 34 limits ring 35 and the gripping block 36 positioned at the left side of first gear frame 34.First retainer ring 31 is in transversal Face is the cylinder of annulus, and the inner surface of first retainer ring 31 is fixedly connected with the outer surface of first penholder 1.Described One locating ring 32 is in the cylinder that cross section is annulus, under the upper surface of first locating ring 32 and first retainer ring 31 Surface is fixedly connected.The second spring 33 is provided with two and respectively positioned at the left and right sides of first penholder 1, described second The upper end of spring 33 is fixedly connected with first retainer ring 31, and the lower end of the second spring 33 is consolidated with the first gear frame 34 Fixed connection, the second spring 33 is contained in first locating ring 32.The first gear frame 34 is annulus in cross section Cylinder, the outer surface of the inner surface of the first gear frame 34 and first penholder 1 is slidably connected, outside the first gear frame 34 Surface and the inner surface of first locating ring 32 are slidably connected, and the first gear frame 34 is determined with first penholder 1 and first Frictional force between the ring 32 of position is more than the elastic force of the second spring 33, and then when first gear frame 34 is pulled out, the first gear Frame 34 will not be moved in the first locating ring 32 in the elastic force effect of second spring 33 to be recovered to initial position.Described first Ring 35 is limited in annular shape, the outer surface of the first restriction ring 35 is fixedly connected with the inner surface of the first gear frame 34, institute The upper surface for stating the first restriction ring 35 is oblique, and the first restriction ring 35 can act against first connector 12 upwards On side.The right-hand member for gripping block 36 is fixedly connected with the left surface of the first gear frame 34, and convenient use person holds.

As shown in figure 1, second penholder 4 is in the cylinder that cross section is annulus, the inner surface of second penholder 4 is provided with Screw thread, the upper end of the contiguous block 13 is contained in second penholder 4 and is threadedly coupled with second penholder 4, so as to So that the first penholder 1 closely to be linked together with second penholder 4, and first penholder 1 upper end act against it is described The lower end of second penholder 4.Second penholder 4, which is provided with, is contained in its internal some second fixed plate 41, positioned at described the 3rd spring 43 of the lower section of one fixed plate 41, second below the 3rd spring 43 lean plate 42, positioned at described second Second connector 44 of the top of penholder 4.Second fixed plate 41 is provided with several, and second fixed plate 41 is in cylinder, The outer surface of second fixed plate 41 is fixedly connected with the inner surface of second penholder 41.3rd spring 43 is provided with two Individual, the 3rd spring 43 is in vertical shape, and the upper end of the 3rd spring 43 is fixedly connected with second fixed plate 41, described The lower end of 3rd spring 43 leans plate 42 with described second and is fixedly connected, and the 3rd spring 43 pulls up described second and leaned Plate 42.Second connector 44 is in hollow round table-like, the lower surface of second connector 44 and first penholder 4 Upper surface is fixedly connected.

As shown in figure 1, second pen-cartridge device 5 include the second pen core 51 and positioned at the top of second pen core 51 the Two nibs 52.Second pen core 51 is in store pen and ink in cylinder, second reservoir shaft 51, and second pen core 51 is passed through Wear the upper and lower surface of second fixed plate 41 and be slidably connected with it, the lower end of second pen core 51 acts against described second Lean on plate 42.The lower end of second nib 52 is acted against on second pen core 51 so that in second pen core 51 Pen and ink can be flow in second nib 52.Second nib 52 through second connector 44 upper and lower surface and It is slidably connected with it.The color of pen and ink is different from the color in second pen core 21 in second pen core 51, and then causes The utility model watercolor pencil has two kinds of colors.

As shown in figure 1, the second gear frame apparatus 6 includes the second retainer ring 61, positioned at the top of the second retainer ring 61 The second locating ring 62, be contained in second locating ring 62 the 4th spring 63, positioned at the top of the 4th spring 63 Second gear frame 65, the second gripping block 66 for being arranged at the left side of the second gear frame 65 and be contained in the second gear frame 65 the Two limit ring 67.Second retainer ring 61 is in the cylinder that cross section is annulus, the inner surface of second retainer ring 61 and institute The outer surface for stating the second penholder 4 is fixedly connected.Second locating ring 62 is in the cylinder that cross section is annulus, second positioning The lower surface of ring 62 is fixedly connected with the upper surface of second retainer ring 61.4th spring 63 is provided with two, described the The lower end of four springs 63 is fixedly connected with second retainer ring 61, upper end and the second gear frame 65 of the 4th spring 63 It is fixedly connected.The second gear frame 65 is in the cylinder that cross section is annulus, and the lower end of the second gear frame 65 is contained in described the In two locating rings 62, the outer surface of the inner surface of the second gear frame 65 and second penholder 4 is slidably connected, the second gear The outer surface of frame 65 and the inner surface of second locating ring 62 are slidably connected, the second gear frame 65 and second penholder 4 And the second frictional force between locating ring 62 is more than the elastic force of the 4th spring 63 so that when second gear frame 65 is pulled out, 4th spring 63 can not retract second gear frame 65.Described second grips the right-hand member of block 66 and the side of the second gear frame 65 Face is fixedly connected, and convenient use person holds.Described second limits the outer surface of ring 67 consolidates with the inner surface of the second gear frame 65 Fixed connection, the lower surface of the second restriction ring 67 is oblique so that the second restriction ring 67 can act against institute when moving down State on the second connector 44.

As shown in figure 1, the utility model drop-proof two-color water color pencil is in use, first receive the upper end for connecting frame 13 Be dissolved in the inner surface of second penholder 4 and be threadedly coupled with second penholder 4, so as to by first penholder 1 with Second penholder 4 is firm to link together.First spring 15 pulls downward on described first and leans plate 14, described first Lean plate 14 and push down on first pen core 21 so that first pen core 21 tightly act against first nib 22 On, and then the pen and ink in first pen core 21 are smoothly entered on first nib 22, and similarly, described Three springs 43 pull up described second and lean plate 42 so that described second, which leans plate 42, acts against on second pen core 51, And then second pen core 51 is acted against on second nib 52 so that the pen and ink in the second pen core 51 can be smoothly Enter on second nib 52.When needing to use the first nib 22 to paint, it is upward that user holds the first gripping block 36 It is mobile so that the first gear frame 34 is moved up, until the described first restriction ring 35 is acted against on first connector 12, Now the first nib 22 exposes, and then can be painted, it is to be used finish after, user hold it is described first grip block 36 to Lower movement so that the first gear frame 34 is moved down, until the first nib 22 is blocked.Similarly, when needing to use second During point 52, user holds the second gripping block 66 and moved down, and then the second gear frame 65 is moved down, until described Second restriction ring 67 is acted against on second connector 44, and now the second nib 52 exposes, and then can be painted, and waits to make After finishing, user holds the second gripping block 66 and moved up so that the second gear frame 65 is moved up, until described the Two gear frames 65 block the second nib 52.Due to rubbing between second gear frame 65 and the locating ring 62 of second penholder 4 and second Wipe power and be more than the elastic force of the 4th spring 63, and then second gear frame 65 can be moved on the position of needs, and be fixed in On the position, similarly because the frictional force between first gear frame 34 and the locating ring 32 of first penholder 1 and second is more than second The elastic force of spring 33, and then first gear frame 34 can be moved on the position of needs, and be fixed on the position, with Just the demand used is met.When first gear frame 34 blocks first nib 22, or second gear frame 65 blocks the second nib When 52, when the utility model drops on the ground, the first nib 22 and the second nib 52 can be played a protective role.Extremely This, the utility model drop-proof two-color water color pencil is finished using process description.

Claims (7)

1. a kind of drop-proof two-color water color pencil, it is characterised in that:The drop-proof two-color water color pencil includes the first penholder, is arranged at The first pen-cartridge device in first penholder, the first gear frame apparatus being arranged on the outside of first penholder, positioned at described The second penholder above one penholder, the second pen-cartridge device being arranged in second penholder, it is arranged at outside second penholder The second gear frame apparatus of side, first penholder, which is provided with, is contained in its internal some first fixed plate, positioned at described first The first connector below penholder, the first spring above first fixed plate, above first spring First leans plate, connection frame above plate is leaned positioned at described first, and first pen-cartridge device includes the first pen core, positioned at institute The first nib below the first pen core is stated, the first gear frame apparatus includes the first retainer ring, under first retainer ring First locating ring of side, first gear frame, the second spring above the first gear frame, it is arranged at the first gear inframe First limits ring and the gripping block on the left of the first gear frame, and second penholder, which is provided with, is contained in some of its inside Second fixed plate, the 3rd spring below first fixed plate, second below the 3rd spring lean plate, The second connector above second penholder, second pen-cartridge device includes the second pen core and positioned at described second The second nib above core, the second gear frame apparatus includes the second retainer ring, second above second retainer ring Locating ring, the 4th spring being contained in second locating ring, the second gear frame above the 4th spring, it is arranged at Second on the left of the second gear frame grips block and is contained in the second restriction ring of the second gear inframe.
2. drop-proof two-color water color pencil as claimed in claim 1, it is characterised in that:First fixed plate provided with two and on Lower to place, first fixed plate is in cylinder, and the side of first fixed plate and the inner surface of first penholder are fixed Connection, first connector is in hollow round table-like, the upper surface of first connector and the following table of first penholder Face is fixedly connected, and the connection frame is in the cylinder that cross section is annulus, and the lower end of the connection frame is contained in first penholder Interior and be fixedly connected with the inner surface of first penholder, described first leans plate in cylinder, and described first leans the side of plate Face and the inner surface of first penholder are slidably connected, and first spring is provided with two, the upper end of first spring and institute State first and lean plate and be fixedly connected, the lower end of first spring is fixedly connected with first fixed plate.
3. drop-proof two-color water color pencil as claimed in claim 2, it is characterised in that:First pen core is in cylinder, described The upper end of first pen core acts against described first and leaned on the lower surface of plate, and first pen core is through first fixed plate Upper and lower surface and it is slidably connected with it, the upper end of first nib is acted against on the lower end of first pen core, described first Nib runs through the upper and lower surface of first connector and is slidably connected with it.
4. drop-proof two-color water color pencil as claimed in claim 3, it is characterised in that:First retainer ring is circle in cross section The cylinder of ring, the inner surface of first retainer ring is fixedly connected with the outer surface of first penholder, first locating ring In the cylinder that cross section is annulus, the upper surface of first locating ring is fixedly connected with the lower surface of first retainer ring, The second spring provided with two and respectively be located at first penholder the left and right sides, the upper end of the second spring with it is described First retainer ring is fixedly connected, and the lower end of the second spring is fixedly connected with the first gear frame, and the second spring is housed In in first locating ring, the first gear frame is in the cylinder that cross section is annulus, the inner surface of the first gear frame and institute The outer surface for stating the first penholder is slidably connected, and the inner surface of the outer surface of the first gear frame and first locating ring, which is slided, to be connected Connect, described first, which limits ring, fixes and connect in annular shape, the outer surface of the first restriction ring and the inner surface of the first gear frame Connect, described first limits the upper surface of ring obliquely, first connector can be acted against on the first restriction ring On side, the right-hand member for gripping block is fixedly connected with the left surface of the first gear frame.
5. drop-proof two-color water color pencil as claimed in claim 4, it is characterised in that:Second fixed plate is provided with several, Second fixed plate is in cylinder, and the outer surface of second fixed plate is fixedly connected with the inner surface of second penholder, 3rd spring is provided with two, and the 3rd spring is in vertical shape, upper end and second fixed plate of the 3rd spring It is fixedly connected, the lower end of the 3rd spring leans plate with described second and is fixedly connected, second connector is in hollow circle Mesa-shaped, the lower surface of second connector is fixedly connected with the upper surface of first penholder.
6. drop-proof two-color water color pencil as claimed in claim 5, it is characterised in that:Second pen core is in cylinder, described Second pen core runs through the upper and lower surface of second fixed plate and is slidably connected with it, and the lower end of second pen core acts against institute State second to lean on plate, the lower end of second nib is acted against on second pen core, second nib is through described the The upper and lower surface of two connectors and it is slidably connected with it.
7. drop-proof two-color water color pencil as claimed in claim 6, it is characterised in that:Second retainer ring is circle in cross section The cylinder of ring, the inner surface of second retainer ring is fixedly connected with the outer surface of second penholder, second locating ring In the cylinder that cross section is annulus, the lower surface of second locating ring is fixedly connected with the upper surface of second retainer ring, 4th spring is provided with two, and the lower end of the 4th spring is fixedly connected with second retainer ring, the 4th spring Upper end be fixedly connected with the second gear frame, the second gear frame in cross section be annulus cylinder, the second gear frame Lower end is contained in second locating ring, and the outer surface of the inner surface of the second gear frame and second penholder, which is slided, to be connected Connect, the outer surface of the second gear frame and the inner surface of second locating ring are slidably connected, described second limits the appearance of ring Face is fixedly connected with the inner surface of the second gear frame, and the lower surface of the second restriction ring is oblique.
CN201720104070.0U 2017-01-24 2017-01-24 A kind of drop-proof two-color water color pencil CN206544402U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720104070.0U CN206544402U (en) 2017-01-24 2017-01-24 A kind of drop-proof two-color water color pencil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720104070.0U CN206544402U (en) 2017-01-24 2017-01-24 A kind of drop-proof two-color water color pencil

Publications (1)

Publication Number Publication Date
CN206544402U true CN206544402U (en) 2017-10-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720104070.0U CN206544402U (en) 2017-01-24 2017-01-24 A kind of drop-proof two-color water color pencil

Country Status (1)

Country Link
CN (1) CN206544402U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110816115A (en) * 2019-11-10 2020-02-21 宁昱涵 Pen capable of preventing pen point from being broken when falling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110816115A (en) * 2019-11-10 2020-02-21 宁昱涵 Pen capable of preventing pen point from being broken when falling
CN110816115B (en) * 2019-11-10 2020-12-15 邵兵 Pen capable of preventing pen point from being broken when falling

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Granted publication date: 20171010

Termination date: 20190124