CN219789750U - Sealing structure of pen air-proof sleeve and pen adopting same - Google Patents

Sealing structure of pen air-proof sleeve and pen adopting same Download PDF

Info

Publication number
CN219789750U
CN219789750U CN202321378397.9U CN202321378397U CN219789750U CN 219789750 U CN219789750 U CN 219789750U CN 202321378397 U CN202321378397 U CN 202321378397U CN 219789750 U CN219789750 U CN 219789750U
Authority
CN
China
Prior art keywords
pen
sealing sleeve
cap
pen cap
holder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202321378397.9U
Other languages
Chinese (zh)
Inventor
刘栋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Cayou Animation Co ltd
Original Assignee
Zhejiang Cayou Animation Co ltd
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 Zhejiang Cayou Animation Co ltd filed Critical Zhejiang Cayou Animation Co ltd
Priority to CN202321378397.9U priority Critical patent/CN219789750U/en
Application granted granted Critical
Publication of CN219789750U publication Critical patent/CN219789750U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Pens And Brushes (AREA)

Abstract

The utility model provides an air-proof sleeve sealing structure of a pen and the pen adopting the same, which comprises a pen holder and a pen cap sleeved outside the pen holder, wherein a fixed sealing sleeve clamped with the pen holder is arranged in the pen cap, a movable sealing sleeve capable of abutting against the end part of the pen holder is slidably connected in the fixed sealing sleeve, and an elastic piece which enables the movable sealing sleeve to be elastically connected with the movable sealing sleeve so as to enable the movable sealing sleeve to be tightly matched with the end part of the pen holder is also arranged in the fixed sealing sleeve. According to the pen cap, the elastic piece is matched with the movable sealing sleeve, after a pen is inserted into the pen cap, the movable sealing sleeve is driven by the elastic piece to be tightly matched with the end part of the pen holder, so that elastic sealing is realized, the tightness of the pen cap is further enhanced, ink at the nib of the pen is not easy to dry and volatilize, consumption of ink is reduced, the pen cap can be opened and closed in a way of pulling and inserting through a way of clamping the fixed sealing sleeve with the pen holder, and the pen cap is simple and quick to operate and more convenient to use.

Description

Sealing structure of pen air-proof sleeve and pen adopting same
Technical Field
The utility model relates to the technical field of stationery equipment, in particular to an anti-gas sleeve sealing structure of a pen and the pen adopting the structure.
Background
The pen is a writing tool which mainly uses metal as a pen body, is generally used for writing characters in daily life, and has the characteristics of durability, convenience, easiness in use and the like.
The existing pens are generally divided into a single-layer spiral pen cap, a double-layer cap drawing pen cap, a single-layer cap drawing pen cap and the like, but the single-layer pen cap has certain defects when in use, and the single-layer pen cap has no sealing structure, so that ink is dried and volatilized after the pen is closed for a period of time after the pen is used, and normal writing is not possible; the double-layer pen cap is additionally provided with the lining on the basis of the single-layer pen cap, so that the problem of ink drying is solved, but the pen is dry after the pen is idle for a period of time due to the hard contact design of the pen cap and the pen holding part; single and double cap designs do not protect the nib of a pen well; in the student stationery experience, the operation of opening and closing the cover of the rotary pen cap is inconvenient.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present utility model aims to provide a sealing structure of an anti-air jacket of a pen and a pen adopting the same, which are used for solving the problems of poor sealing property, easy volatilization and inconvenient uncovering of a pen cap in the prior art.
To achieve the above and other related objects, the present utility model provides a sealing structure for a pen air-proof sleeve, comprising a pen holder and a pen cap sleeved outside the pen holder, wherein a fixed sealing sleeve clamped with the pen holder is arranged in the pen cap, a movable sealing sleeve capable of abutting against the end of the pen holder is slidably connected with the fixed sealing sleeve, and an elastic member which enables the movable sealing sleeve to be elastically connected with the movable sealing sleeve so as to enable the movable sealing sleeve to be tightly matched with the end of the pen holder is further arranged in the fixed sealing sleeve.
Through adopting above-mentioned technical scheme, through making the pen cap part by the pen cap, fixed seal cover, movable seal cover triplex, can further protect the nib of pen and can also improve the leakproofness of pen cap, then through the cooperation of elastic component with movable seal cover, can drive movable seal cover close fit in pen holding the tip through the elastic component after the pen inserts the pen cap, realize elastic seal, thereby further strengthen the leakproofness of pen cap, thereby make the ink of pen nib be difficult for drying and volatilizing, the use of extension pen, reduce the consumption of ink, and can open and shut the pen cap through the mode of pulling out the plug through fixed seal cover and pen holding joint, and is easy operation is swift, more convenient to use.
In an embodiment of the utility model, the fixed sealing sleeve is inserted into the pen cap, the outer wall of the fixed sealing sleeve is attached to the inner wall of the pen cap, the side wall of the pen holder is provided with an arc-shaped convex edge protruding outwards, and the lower end of the fixed sealing sleeve is provided with a clamping part clamped with the arc-shaped convex edge.
Through adopting above-mentioned technical scheme, can realize the joint through the arc protruding edge on the pen holder and the joint portion cooperation on the fixed seal cover, realize pulling out of pen cap and insert.
In an embodiment of the utility model, the clamping part comprises a connecting groove arranged at the lower end of the fixed sealing sleeve and connected with the arc-shaped convex edge in a sliding manner, and clamping blocks which are arranged on the connecting groove and can be clamped with the arc-shaped convex edge towards the axis of the pen cap, wherein the clamping blocks are cambered surfaces, and a plurality of clamping blocks are uniformly distributed around the axis of the pen cap.
Through adopting above-mentioned technical scheme, through setting up the joint piece in the spread groove to by the cambered surface cooperation arc protruding edge of joint piece, and then can be more convenient for fix the plug that adapter sleeve and pen held, the operation is more convenient.
In an embodiment of the utility model, the upper end of the pen cap is provided with an abutting inclined plane communicated with the arc-shaped convex edge, and the lower end of the movable sealing sleeve is provided with a chamfering angle which can be matched with the abutting inclined plane.
Through adopting above-mentioned technical scheme, can make the conflict face of movable cap cover and cap be the inclined plane, can make movable seal cover conflict pen under the elastic component effect hold when, the leakproofness is stronger, and the effect is better.
In an embodiment of the utility model, the movable sealing sleeve is in clearance fit with the fixed sealing sleeve, and the lower end of the movable sealing sleeve is also provided with a flange which protrudes outwards to be connected with the connecting groove in a sliding way, and the flange is matched with the inner wall of the connecting groove.
Through adopting above-mentioned technical scheme, can be more convenient for the slip of movable seal cover through the clearance fit of movable seal cover and fixed seal cover, through the cooperation of flange and spread groove simultaneously, can improve the leakproofness of movable seal cover and fixed seal cover.
In an embodiment of the utility model, the elastic member is a spring, the axis of the elastic member coincides with the axis of the pen cap, the upper end of the elastic member is connected with the inner wall of the fixed sealing sleeve, and the lower end of the elastic member is connected with the upper end of the movable sealing sleeve.
Through adopting above-mentioned technical scheme, can be when the pen is pegged graft in the pen cap, conflict promotes movable seal cover, makes the spring compression to make movable seal cover conflict fit on the pen holder.
In an embodiment of the present utility model, a positioning groove sleeved with the elastic sealing element for positioning is provided on the inner wall of the fixed sealing sleeve, and a connecting portion sleeved with the elastic element for positioning is further provided on the movable sealing sleeve.
Through adopting above-mentioned technical scheme, the installation of the elastic component of being convenient for more can improve the installation accuracy of elastic component through the cooperation of constant head tank and connecting portion.
In an embodiment of the utility model, the pen cap is further provided with a fixing component capable of fixedly connecting the fixing seal sleeve and the pen cap, and the fixing component comprises a through groove arranged at the center of the upper end of the pen cap, a positioning column arranged at the upper end of the fixing seal sleeve and capable of being inserted into the through groove, a top cover respectively clamped with the positioning column and the pen cap, and a clamping edge arranged on the inner wall of the pen cap and capable of being clamped with the fixing seal sleeve.
By adopting the technical scheme, the sealing sleeve can be more convenient to assemble and disassemble, and is convenient to process.
In an embodiment of the utility model, a pen clip is further disposed on the pen cap, and the pen clip is fixedly connected to the pen cap through the top cover.
Through adopting above-mentioned technical scheme, can be through the top cap with the synchronous installation of pen clip on the pen cap, more be convenient for assemble.
The utility model also provides a pen with the pen air-proof sleeve sealing structure, which comprises a pen tongue fixedly arranged in a pen holder, a pen holder matched with the pen holder in a threaded manner, and an ink bag component arranged in the pen holder and used for providing ink for the pen tongue.
As described above, the pen air-proof sleeve sealing structure and pen adopting the same have the following beneficial effects: the pen cap part is composed of the pen cap, the fixed sealing sleeve and the movable sealing sleeve, the pen point of the pen can be further protected, the tightness of the pen cap can be further improved, then the elastic piece is matched with the movable sealing sleeve, the movable sealing sleeve can be driven to be tightly matched with the pen holding end part through the elastic piece after the pen is inserted into the pen cap, the elastic sealing is realized, the tightness of the pen cap is further enhanced, the ink of the pen point of the pen is not easy to dry and volatilize, the use of the pen is prolonged, the consumption of ink is reduced, the pen cap can be opened and closed in a way of pulling and inserting through a way of fixing the sealing sleeve and the pen holding joint, and the pen cap is simple and quick to operate and convenient to use.
Drawings
FIG. 1 is a cross-sectional view showing the overall structure disclosed in the first embodiment of the present utility model;
FIG. 2 is an exploded view of the whole of the first embodiment of the present utility model;
FIG. 3 is a cross-sectional view showing the structure of the pen cap disclosed in the first embodiment of the present utility model;
fig. 4 is a sectional view showing the structure of a barrel according to the second embodiment of the present utility model;
fig. 5 is a schematic view showing the overall structure of the first embodiment of the present utility model.
Description of element reference numerals
1. A pen holder; 2. a cap; 3. fixing a sealing sleeve; 4. a movable sealing sleeve; 5. an elastic member; 6. a fixing assembly; 7. a limit groove; 8. an arc-shaped convex edge; 9. a clamping part; 10. an abutting inclined plane; 11. a flange; 12. a positioning groove; 13. a connection part; 14. a pen clip;
20. a through groove; 21. positioning columns; 22. a top cover; 23. a clamping edge;
30. a connecting groove; 31. a clamping block;
101. a pen tongue; 102. a penholder; 103. an ink bag assembly; 104. a pen cap decorative ring; 105. a pen clip decorative ring; 106. a penholder decorative ring; 107. and a tail cover.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
Please refer to fig. 1 to 5. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
Embodiment one:
as shown in fig. 1 and 2, this embodiment provides a sealing structure for a pen air-proof sleeve, which comprises a pen holder 1 and a pen cap 2 sleeved outside the pen holder 1, wherein a fixed sealing sleeve 3 capable of being clamped with the pen holder 1 is arranged in the pen cap 2, a movable sealing sleeve 4 capable of sliding along the axial direction of the pen cap 2 and being connected with the end part of the pen holder 1 in a sliding manner is arranged in the fixed sealing sleeve 3, and an elastic piece 5 which enables the movable sealing sleeve 4 to be elastically connected with the movable sealing sleeve 4 along the axial direction of the pen cap 2 so as to enable the movable sealing sleeve 4 to be tightly matched with the end part of the pen holder 1 is also arranged in the fixed sealing sleeve 3.
As shown in fig. 3, the fixing seal sleeve 3 is inserted into the pen cap 2, the outer wall of the fixing seal sleeve 3 is attached to the inner wall of the pen cap 2, the pen cap 2 is further provided with a fixing component 6 capable of fixedly connecting the fixing seal sleeve 3 with the pen cap 2, the fixing component 6 comprises a through groove 20 arranged at the center of the upper end of the pen cap 2, a positioning column 21 arranged at the upper end of the fixing seal sleeve 3 and capable of being inserted into the through groove 20, a top cover 22 respectively connected with the positioning column 21 and the side wall of the pen cap 2 in a clamping mode, and a clamping edge 23 arranged on the inner wall of the pen cap 2 and capable of being connected with the lower end of the fixing seal sleeve 3 in a clamping mode, the axial direction of the pen cap 2 of the box is protruded along the clamping edge 23, and the surface of the clamping edge 23 is provided with a cambered surface.
The fixing sealing sleeve 3 is further provided with a positioning assembly capable of circumferentially positioning the fixing sealing sleeve 3, the positioning assembly comprises a limiting groove 7 arranged on the side wall of the upper end of the fixing sealing sleeve 3 and a limiting block fixedly arranged in the pen cap 2 and adapted to the limiting groove 7, the upper end of the limiting groove 7 is an opening, and a guide groove is formed in the opening.
During assembly, the fixing sealing sleeve 3 is correspondingly inserted into the pen cap 2 through the positioning assembly, the positioning column 21 is inserted into the through groove 20, then the top cover 22 is buckled into the through groove 20, the top cover 22 is synchronously clamped with the pen cap 2 and the positioning column 21, and double fixing of the fixing sealing sleeve 3 is realized through the clamping edge 23.
The lower extreme of fixed seal cover 3 can hold 1 joint with the pen, have the protruding edge 8 of outside bellied arc on the 1 lateral wall of pen, fixed seal cover 3 lower extreme is provided with the joint portion 9 with the protruding edge 8 joint of arc, joint portion 9 is including setting up in the spread groove 30 that the 3 lower extreme of fixed seal cover is connected with the protruding edge 8 of arc slides and setting up the joint piece 31 that can with the protruding edge 8 joint of arc to pen cap 2 axis arch on spread groove 30, joint piece 31 sets up the cambered surface for the surface, joint piece 31 has evenly arranged a plurality ofly around pen cap 2 axis, can realize the joint of fixed seal cover 3 and pen 1 through the mutual conflict of joint piece 31 and the protruding edge 8 of arc.
The upper end of the pen holder 1 is provided with an abutting inclined plane 10 communicated with the arc-shaped convex edge 8, the lower end of the movable sealing sleeve 4 is provided with a chamfer angle which can be matched with the abutting inclined plane 10, and when a pen is inserted into the pen cap 2, the upper end of the pen cap 2 can be abutted against the movable sealing sleeve 4.
The movable sealing sleeve 4 is in clearance fit with the fixed sealing sleeve 3, the lower end of the movable sealing sleeve 4 is also provided with a flange 11 which protrudes outwards and is in sliding connection with the connecting groove 30, and the flange 11 is matched with the inner wall of the connecting groove 30.
The elastic piece 5 is a spring, the axis of the elastic piece 5 coincides with the axis of the pen cap 2, the upper end of the elastic piece 5 is connected with the inner wall of the fixed sealing sleeve 3, the lower end of the elastic piece 5 is connected with the upper end of the movable sealing sleeve 4, a positioning groove 12 sleeved with the elastic sealing piece for positioning is arranged on the inner wall of the fixed sealing sleeve 3, and a connecting part 13 sleeved with the elastic piece 5 for positioning the elastic piece 5 is also arranged on the movable sealing sleeve 4.
The elastic piece 5 can limit through the positioning groove 12 and the connecting part 13 on the movable sealing sleeve 4, so that the movable sealing sleeve 4 can reciprocate along the axial direction of the pen cap 2, and the movable sealing sleeve 4 and the pen cap 2 are elastically sealed.
The pen cap 2 is also provided with a pen clip 14, and the pen clip 14 is fixedly connected to the pen cap 2 through a top cover 22.
Embodiment two:
as shown in fig. 4 and 5, this embodiment provides a pen with an anti-air jacket sealing structure as in the first embodiment, which includes a pen tongue 101 fixedly disposed in a pen holder 1, a pen holder 102 in threaded engagement with the pen holder 1, an ink bag assembly 103 disposed in the pen holder 102 for providing ink for the pen tongue 101, a cap decorative ring 104 fixedly disposed at the lower end of the cap 2 and in abutting connection with the pen holder 102, a clip decorative ring 105 disposed at the upper end of the cap 2, a pen holder decorative ring 106 disposed at the lower end of the pen holder 102, and a tail cap 107 sleeved at the lower end of the pen holder 102.
The pen cap part is composed of the pen cap 2, the fixed sealing sleeve 3 and the movable sealing sleeve 4, the pen point of the pen can be further protected, the tightness of the pen cap 2 can be further improved, then after the pen is inserted into the pen cap 2 through the matching of the elastic piece 5 and the movable sealing sleeve 4, the movable sealing sleeve 4 is driven to be tightly matched with the end part of the pen holder 1 through the elastic piece 5, so that the elastic sealing is realized, the tightness of the pen cap 2 is further enhanced, the ink of the pen point is not easy to dry and volatilize, the use of the pen is prolonged, the consumption of ink is reduced, the pen cap 2 can be opened and closed through the way of pulling and inserting the fixed sealing sleeve 3 and the pen holder 1 in a clamping manner, the operation is simple and quick, and the pen cap is convenient to use.
In summary, the present utility model effectively overcomes the disadvantages of the prior art and has high industrial utility value.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (10)

1. The utility model provides a pen prevents gas jacket seal structure, includes pen holder and cover locates the pen cap outside the pen holder, its characterized in that, be provided with in the pen cap with pen holder joint's fixed seal cover, fixed seal cover sliding connection can conflict the movable seal cover of pen holder tip, still be provided with in the fixed seal cover and make movable seal cover and its elastic connection make the elastic component of movable seal cover closely cooperate the pen holder tip.
2. The air-proof jacket seal structure of a pen as claimed in claim 1, wherein: the pen cap is characterized in that the fixed sealing sleeve is inserted into the pen cap, the outer wall of the fixed sealing sleeve is attached to the inner wall of the pen cap, the side wall of the pen holder is provided with an arc-shaped convex edge which protrudes outwards, and the lower end of the fixed sealing sleeve is provided with a clamping part which is clamped with the arc-shaped convex edge.
3. The air-proof jacket seal structure of a pen as claimed in claim 2, wherein: the clamping part comprises a connecting groove and a clamping block, wherein the connecting groove is arranged at the lower end of the fixed sealing sleeve and is connected with the arc-shaped protruding edge in a sliding mode, the clamping block is arranged on the connecting groove and can be clamped with the arc-shaped protruding edge in a protruding mode towards the axis of the pen cap, the surface of the clamping block is provided with an arc surface, and the clamping block is uniformly distributed in a plurality of positions around the axis of the pen cap.
4. A pen air cap seal according to claim 3, wherein: the pen holder is characterized in that the upper end of the pen holder is provided with an abutting inclined plane communicated to the arc-shaped convex edge, and the lower end of the movable sealing sleeve is provided with a chamfering angle which can be matched with the abutting inclined plane.
5. A pen air cap seal according to claim 3, wherein: the movable sealing sleeve is in clearance fit with the fixed sealing sleeve, the lower end of the movable sealing sleeve is also provided with a flange which protrudes outwards and is connected with the connecting groove in a sliding manner, and the flange is matched with the inner wall of the connecting groove.
6. The air-proof jacket seal structure of a pen as claimed in claim 1, wherein: the elastic piece is a spring, the axis of the elastic piece coincides with the axis of the pen cap, the upper end of the elastic piece is connected with the inner wall of the fixed sealing sleeve, and the lower end of the elastic piece is connected with the upper end of the movable sealing sleeve.
7. The pen air-proof sleeve sealing structure according to claim 6, wherein: the inner wall of the fixed sealing sleeve is provided with a positioning groove sleeved with the elastic sealing element for positioning, and the movable sealing sleeve is also provided with a connecting part sleeved with the elastic element for positioning the elastic element.
8. The air-proof jacket seal structure of a pen as claimed in claim 1, wherein: the pen cap is further provided with a fixing assembly capable of fixedly connecting the fixing sealing sleeve with the pen cap, and the fixing assembly comprises a through groove arranged at the center of the upper end of the pen cap, a positioning column arranged at the upper end of the fixing sealing sleeve and capable of being inserted into the through groove, a top cover respectively connected with the positioning column and the pen cap in a clamping mode, and a clamping edge arranged on the inner wall of the pen cap and capable of being connected with the lower end of the fixing sealing sleeve in a clamping mode.
9. The pen air-proof sleeve sealing structure according to claim 8, wherein: the pen cap is also provided with a pen clip, and the pen clip is fixedly connected to the pen cap through a top cover.
10. A pen employing a pen air-proof sleeve sealing structure as claimed in any one of claims 1 to 9, wherein: comprises a pen tongue fixedly arranged in a pen holder, a pen holder matched with the screw thread of the pen holder and an ink bag component arranged in the pen holder for providing ink for the pen tongue.
CN202321378397.9U 2023-05-31 2023-05-31 Sealing structure of pen air-proof sleeve and pen adopting same Active CN219789750U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321378397.9U CN219789750U (en) 2023-05-31 2023-05-31 Sealing structure of pen air-proof sleeve and pen adopting same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321378397.9U CN219789750U (en) 2023-05-31 2023-05-31 Sealing structure of pen air-proof sleeve and pen adopting same

Publications (1)

Publication Number Publication Date
CN219789750U true CN219789750U (en) 2023-10-03

Family

ID=88181348

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321378397.9U Active CN219789750U (en) 2023-05-31 2023-05-31 Sealing structure of pen air-proof sleeve and pen adopting same

Country Status (1)

Country Link
CN (1) CN219789750U (en)

Similar Documents

Publication Publication Date Title
US4711592A (en) Capless retractable marking pen
ATE49159T1 (en) FOUNTAIN PEN WITH AN INTERCHANGEABLE FOUNTAIN PART.
CN219789750U (en) Sealing structure of pen air-proof sleeve and pen adopting same
CN213768034U (en) Writing pen with replaceable pen point
CN213891943U (en) Watercolor pen with convenient replaceable pen point
CN210634303U (en) Pen capable of improving sealing performance of ink bag
CN110202976B (en) Press writing tool with automatic sealing device
CN209904337U (en) Whiteboard pen capable of being obliquely adsorbed on whiteboard
CN109466208B (en) Ink guide structure of ink pen and ink pen comprising same
CN109532277B (en) Pen cap and pen holder integrated writing brush for arts and crafts
CN219312369U (en) Abnormal shape watercolor pencil
CN211994850U (en) White board pen
CN210390573U (en) DIY combined pen
CN210851777U (en) Magnetic suction type pen
CN209938133U (en) White board pen with double colors
CN219446564U (en) Writing brush
CN213199279U (en) Adjustable pen point pressing structure
CN221737486U (en) Mark pen with strong sealing performance
CN212194812U (en) Pen holder
CN220390818U (en) Novel double-end mark pen
JP2006305736A (en) Writing utensil
CN221392770U (en) Press type propylene mark pen
CN214775029U (en) Combined pen
CN214928485U (en) Writing tool
CN213565146U (en) Multifunctional pen

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant