CN221795248U - A cup packaging box - Google Patents
A cup packaging box Download PDFInfo
- Publication number
- CN221795248U CN221795248U CN202420166747.3U CN202420166747U CN221795248U CN 221795248 U CN221795248 U CN 221795248U CN 202420166747 U CN202420166747 U CN 202420166747U CN 221795248 U CN221795248 U CN 221795248U
- Authority
- CN
- China
- Prior art keywords
- side plate
- tubular
- plate
- disc
- type
- 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
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
Landscapes
- Cartons (AREA)
Abstract
本实用新型公开了一种杯子包装盒，涉及包装盒技术领域，包括盘式折叠纸盒和管式折叠纸盒，盘式折叠纸盒固定于管式折叠纸盒的下端，盘式折叠纸盒的上表面面积大于管式折叠纸盒的上表面面积，盘式折叠纸盒的上端设有盘式顶板限位槽口，盘式顶板限位槽口用于限制杯子的位移，管式折叠纸盒内还设有缓冲结构，缓冲结构用于保护杯子。本实用新型中位于下方的盘式折叠纸盒在一般的堆码方式中能够和其他商品四周隔离开来，并且结合缓冲结构，能够有效的对杯子进行缓冲以及保护作用，并且造型新颖美观。
The utility model discloses a cup packaging box, which relates to the technical field of packaging boxes, and includes a disc-type folding paper box and a tube-type folding paper box. The disc-type folding paper box is fixed to the lower end of the tube-type folding paper box, the upper surface area of the disc-type folding paper box is larger than the upper surface area of the tube-type folding paper box, the upper end of the disc-type folding paper box is provided with a disc-type top plate limiting notch, the disc-type top plate limiting notch is used to limit the displacement of the cup, and a buffer structure is also provided in the tube-type folding paper box, the buffer structure is used to protect the cup. In the utility model, the disc-type folding paper box located at the bottom can be isolated from other commodities on all sides in a general stacking method, and combined with the buffer structure, it can effectively buffer and protect the cup, and the shape is novel and beautiful.
Description
Technical Field
The utility model relates to the technical field of packaging boxes, in particular to a cup packaging box.
Background
The package is a box for packaging a product. The packaging boxes can be classified into paper boxes, iron boxes, wood boxes, leather boxes and the like according to materials, and the packaging boxes have the functions of ensuring the safety of products in transportation, improving the grade of the products and the like.
As a fragile commodity, a package is often required to have good shock resistance in order to prevent breakage during handling.
The existing packaging designs mostly take rectangular boxes as main forms, however, as the demands of consumers for the packaging designs are increasingly diversified, the conventional packaging forms cannot meet the demands. And during transportation and storage, the traditional rectangular box can not effectively buffer and protect the glass cup.
Therefore, there is a need in the art for a cup package that solves the above-mentioned problems.
Disclosure of utility model
The utility model aims to provide a cup packaging box which is used for solving the technical problems in the prior art, can effectively buffer and protect a cup, and is novel in shape and attractive in appearance.
In order to achieve the above object, the present utility model provides the following solutions:
The utility model discloses a cup packing box, which comprises a disc type folding paper box and a tubular folding paper box, wherein the disc type folding paper box is fixed at the lower end of the tubular folding paper box, the upper surface area of the disc type folding paper box is larger than that of the tubular folding paper box, a disc type top plate limiting notch is formed in the upper end of the disc type folding paper box and used for limiting the displacement of a cup, and a buffer structure is further arranged in the tubular folding paper box and used for protecting the cup.
Preferably, the disc type folding paper box comprises a disc type paper box bottom plate, a disc type paper box top plate, a disc type first side plate, a disc type second side plate, a disc type third side plate and a disc type fourth side plate, four sides of the disc type paper box bottom plate are respectively connected with the disc type first side plate, the disc type second side plate, the disc type third side plate and the disc type fourth side plate, the disc type first side plate and the disc type third side plate are oppositely arranged, the disc type second side plate and the disc type fourth side plate are oppositely arranged, one side of the disc type third side plate, far away from the disc type paper box bottom plate, is connected with one side of the disc type paper box top plate, and the disc type top plate limiting notch is formed in the disc type paper box top plate.
Preferably, a second pair of folding lines is arranged on the disc-type second side plate, and the disc-type second side plate is folded in half along the second pair of folding lines to form a second side plate interlayer;
a fourth pair of folding lines are arranged on the disc-type fourth side plate, and a fourth side plate interlayer is formed after the disc-type fourth side plate is folded in half along the fourth pair of folding lines;
Two ends of the disc-type first side plate are respectively provided with a first side plate plugboard, and the two first side plate plugboards can be respectively inserted into the second side plate interlayer and the fourth side plate interlayer;
two ends of the disc-type third side plate are respectively provided with a third side plate plugboard, and the two third side plate plugboards can be respectively inserted into the second side plate interlayer and the fourth side plate interlayer.
Preferably, a tray top board inserting board is arranged on one side of the tray paper box top board, which is close to the tray first side board, and can be inserted into a gap between the tray first side board and the tray paper box top board.
Preferably, the tubular folding carton comprises a tubular carton top plate, a tubular first side plate, a tubular second side plate, a tubular third side plate and a tubular fourth side plate, wherein the tubular first side plate and the tubular third side plate are oppositely arranged, the tubular second side plate and the tubular fourth side plate are oppositely arranged, one end of the buffer structure is connected with one side of the tubular first side plate, and one side of the tubular carton top plate is connected with one side of the tubular third side plate.
Preferably, the buffer structure comprises a buffer first connecting plate, a buffer folding part and a buffer second connecting plate which are sequentially connected, wherein the buffer first connecting plate is connected with the tubular first side plate, the buffer first connecting plate is parallel to and contacts with the tubular fourth side plate, the buffer second connecting plate is parallel to and contacts with the tubular second side plate, and the buffer folding part is provided with a plurality of buffer folding lines.
Preferably, an exhibition window is arranged on the tubular third side plate.
Preferably, a tubular top board inserting plate is arranged on one side, far away from the tubular third side board, of the tubular paper box top board, a second side board laminating plate is arranged at the upper end of the tubular second side board, a fourth side board laminating plate is arranged at the upper end of the tubular fourth side board, and the tubular top board inserting plate can be inserted into a gap between the second side board laminating plate, the second side board laminating plate and the tubular first side board.
Preferably, two fourth side plate inserting plates are arranged at the lower ends of the tubular fourth side plates, two disc type top plate inserting holes are formed in the disc type paper box top plate, and the two fourth side plate inserting plates are respectively inserted into the two disc type top plate inserting holes.
Compared with the prior art, the utility model has the following technical effects:
The tubular folding paper box is internally provided with the buffer structure, and the disc type folding paper box is internally provided with the disc type top plate limiting notch, so that under the combined action of the buffer structure and the disc type top plate limiting notch, commodities can be fixed, and movement or damage in the logistics transportation process can be prevented. In a common stacking mode, other commodities can be isolated through gaps among the disc-type folding paper boxes, so that collision and extrusion are prevented.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view showing the external structure of a cup packing box according to an embodiment of the present utility model;
FIG. 2 is an internal schematic view of an embodiment of the cup package of the present utility model after the tubular carton top panel is opened;
fig. 3 is an expanded view of a cup package according to an embodiment of the present utility model;
In the figure: 100-disc folding carton; 101-tray carton bottom panel; 102-tray carton top panel; 1021-disk top plate limit slot; 1022-disk top plate receptacle; 1023-disk top board insert board; 103-a disc-type first side plate; 1031-a first side board insert board; 104-a disc-type second side plate; 1041-a second pair of fold lines; 105-a disc third side plate; 1051-third side panel insert; 106-a disc fourth side plate; 1061-a fourth pair of fold lines; 200-tube folding carton; 201-a buffer structure; 2011-buffer first connection plate; 2012-cushioning a fold; 2013-buffering a second connection plate; 202-tubular carton top plate; 2021-tubular roof insert; 203-a tubular first side plate; 204-a tubular second side plate; 2041-a second side panel stack; 205-tubular third side plate; 2051-an exhibition window; 206-a tubular fourth side plate; 2061-fourth side panel stack; 2062-fourth side panel insert.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide a cup packaging box which is used for solving the technical problems in the prior art, can effectively buffer and protect a cup, and is novel in shape and attractive in appearance.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1, the present embodiment provides a cup packing box including a tray-type folding carton 100 and a tube-type folding carton 200, the tray-type folding carton 100 being fixed to a lower end of the tube-type folding carton 200, the tray-type folding carton 100 and the tube-type folding carton 200 being folded from one sheet of paperboard. The upper surface area of the tray-type folding carton 100 is larger than the upper surface area of the tube-type folding carton 200 so that the tube-type folding carton 200 can be separated from other articles, thereby protecting cups in the tube-type folding carton 200. The upper end of the disc-type folding paper box 100 is provided with a disc-type top plate limiting notch 1021, the shape and the size of the disc-type top plate limiting notch 1021 are matched with those of a cup to be placed, and the disc-type top plate limiting notch 1021 is used for limiting the displacement of the cup. The tubular folding paper box 200 is also internally provided with a buffer structure 201, the shape enclosed by the buffer structure 201 is matched with the shape of a cup, and the buffer structure 201 is used for protecting the cup.
When in actual use, only the top cover body of the tubular folding paper box 200 is required to be opened, then a cup is placed in the top cover body, the cup can pass through the special-shaped through hole formed by the buffer structure 201 and the tubular folding paper box 200 and the special-shaped through hole at the position of the limiting notch 1021 of the disc top plate, and finally the bottom of the cup is positioned at the bottom of the disc folding paper box 100, and the cup can be effectively limited and protected through the buffer structure 201 and the limiting notch 1021 of the disc top plate.
In the present embodiment, the tray-type folding carton 100 has a hexahedral structure, and the specific tray-type folding carton 100 includes a tray-type carton bottom panel 101, a tray-type carton top panel 102, a tray-type first side panel 103, a tray-type second side panel 104, a tray-type third side panel 105, and a tray-type fourth side panel 106. Wherein four sides of the tray carton bottom plate 101 are respectively connected with a tray first side plate 103, a tray second side plate 104, a tray third side plate 105 and a tray fourth side plate 106 in a folding way. The disc-type first side plate 103 and the disc-type third side plate 105 are disposed opposite to each other, and the disc-type second side plate 104 and the disc-type fourth side plate 106 are disposed opposite to each other. One side of the tray third side panel, remote from the tray carton bottom panel 101, is folded over and connected to one side of the tray carton top panel 102. The spacing notch 1021 of disk roof sets up on disk carton roof 102 to the spacing notch 1021 of disk roof can be according to the shape of the cup that needs to be fixed, so fix the cup, avoid the cup to take place the problem of rocking about.
In the present embodiment, a second folding line 1041 is disposed on the second plate 104, and the second plate 104 is folded along the second folding line 1041 to form a second plate interlayer, i.e. a gap between two structures after the second plate 104 is folded.
Similarly, a fourth folding line 1061 is provided on the fourth side plate 106, and the fourth side plate 106 is folded along the fourth folding line 1061 to form a fourth side plate interlayer.
Two ends of the disc-type first side plate 103 are respectively provided with a first side plate plugboard 1031, and the two first side plate plugboards 1031 can be respectively inserted into the second side plate interlayer and the fourth side plate interlayer, so that the disc-type first side plate 103 can be fixedly connected with the disc-type second side plate 104 and the disc-type fourth side plate 106 respectively.
Similarly, two ends of the disc-type third side plate 105 are respectively provided with a third side plate plugboard 1051, and the two third side plate plugboards 1051 can be respectively inserted into the second side plate interlayer and the fourth side plate interlayer, so that the disc-type third side plate 105 is fixedly connected with the disc-type second side plate 104 and the disc-type fourth side plate 106 respectively.
In the present embodiment, the tray top panel 102 is provided with a tray top panel board 1023 on a side near the tray first side panel 103, and the width of the tray top panel board 1023 is smaller than the width of the tray top panel 102 because the tubular folding carton 200 occupies a part of the upper surface area of the tray folding carton 100. The tray top panel insert 1023 can be inserted into the gap between the tray first side panel 103 and the tray carton top panel 102 to effect sealing of the upper surface of the tray folded carton 100.
In this embodiment, the tubular folding carton 200 includes a tubular carton top panel 202, a tubular first side panel 203, a tubular second side panel 204, a tubular third side panel 205, and a tubular fourth side panel 206, and it is mainly noted that the tubular folding carton 200 itself has no bottom panel, and the bottom panel structure is the tray carton top panel 102. Wherein the tubular first side plate 203 and the tubular third side plate 205 are disposed opposite each other, and the tubular second side plate 204 and the tubular fourth side plate 206 are disposed opposite each other. One end of the buffer structure 201 is fixedly connected to one side of the tubular first side plate 203 and can be folded. One side of the tubular carton top panel 202 is fixedly connected to one side of the tubular third side panel 205 and is capable of being folded.
In this embodiment, the buffer structure 201 includes a buffer first connecting plate 2011, a buffer folding portion 2012, and a buffer second connecting plate 2013 connected in sequence. One end of the cushion first connecting plate 2011 remote from the cushion fold 2012 is connected to the tubular first side plate 203. The buffer first connecting plate 2011 is disposed parallel to and contacts (i.e. offsets) the tubular fourth side plate 206, the buffer second connecting plate 2013 is disposed parallel to and contacts (i.e. offsets) the tubular second side plate 204, the buffer folding portion 2012 is provided with a plurality of buffer folding lines, and six buffer folding lines are specifically provided, the buffer folding portion 2012 can be folded along the plurality of buffer folding lines, so that a plurality of rectangular plates with small dimensions are formed, and a certain included angle is formed between two adjacent small rectangular plates, so that the whole buffer folding portion 2012 can be enclosed into a shape similar to a semicircle, and thus the buffer folding portion 2012 is used for buffering and limiting a cup.
In this embodiment, the tubular third side plate 205 is provided with the exhibition window 2051, so that the exhibition window 2051 can be regular or irregular, and the brand appearance of the glass can be seen through the exhibition window 2051, thereby playing a role in displaying commodities.
In this embodiment, a tubular top panel board 2021 is folded on the side of the tubular carton top panel 202 away from the tubular third side panel 205, a second side panel board 2041 is folded on the upper end of the tubular second side panel 204, and a fourth side panel board 2061 is folded on the upper end of the tubular fourth side panel 206. When it is desired to close the tubular carton top panel 202, the second side panel stack 2041 is folded with the fourth side panel stack 2061 such that the second side panel stack 2041 is perpendicular to the tubular second side panel 204 and the fourth side panel stack 2061 is perpendicular to the tubular fourth side panel 206, and then the tubular top panel insert 2021 is inserted into the gap between the second side panel stack 2041, the second side panel stack 2041 and the tubular first side panel 203, thereby achieving the closing of the tubular carton top panel 202.
In this embodiment, two fourth side board insertion boards 2062 are provided at the lower end of the tubular fourth side board 206, two tray top board insertion holes 1022 are provided on the tray type carton top board 102, and the two fourth side board insertion boards 2062 are respectively inserted into the two tray top board insertion holes 1022, so as to realize the fixation between the tubular folding carton 200 and the tray folding carton 100.
The principles and embodiments of the present utility model have been described in this specification with reference to specific examples, the description of which is only for the purpose of aiding in understanding the method of the present utility model and its core ideas; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (9)
1. A cup packing carton, its characterized in that: including disc folding carton and tubular folding carton, disc folding carton is fixed in the lower extreme of tubular folding carton, disc folding carton's upper surface area is greater than tubular folding carton's upper surface area, disc folding carton's upper end is equipped with the spacing notch of disc roof, the spacing notch of disc roof is used for restricting the displacement of cup, still be equipped with buffer structure in the tubular folding carton, buffer structure is used for the protection cup.
2. A cup package as claimed in claim 1, wherein: the disc type folding paper box comprises a disc type paper box bottom plate, a disc type paper box top plate, a disc type first side plate, a disc type second side plate, a disc type third side plate and a disc type fourth side plate, four sides of the disc type paper box bottom plate are respectively connected with the disc type first side plate, the disc type second side plate, the disc type third side plate and the disc type fourth side plate, the disc type first side plate and the disc type third side plate are oppositely arranged, the disc type second side plate and the disc type fourth side plate are oppositely arranged, one side of the disc type third side plate, far away from the disc type paper box bottom plate, is connected with one side of the disc type paper box top plate, and a disc type top plate limiting notch is formed in the disc type paper box top plate.
3. A cup package as claimed in claim 2, wherein: a second pair of folding lines are arranged on the disc-type second side plate, and a second side plate interlayer is formed after the disc-type second side plate is folded in half along the second folding lines;
a fourth pair of folding lines are arranged on the disc-type fourth side plate, and a fourth side plate interlayer is formed after the disc-type fourth side plate is folded in half along the fourth pair of folding lines;
Two ends of the disc-type first side plate are respectively provided with a first side plate plugboard, and the two first side plate plugboards can be respectively inserted into the second side plate interlayer and the fourth side plate interlayer;
two ends of the disc-type third side plate are respectively provided with a third side plate plugboard, and the two third side plate plugboards can be respectively inserted into the second side plate interlayer and the fourth side plate interlayer.
4. A cup package as claimed in claim 2, wherein: the tray type paper box top plate is characterized in that a tray type top plate inserting plate is arranged on one side, close to the tray type first side plate, of the tray type paper box top plate, and the tray type top plate inserting plate can be inserted into a gap between the tray type first side plate and the tray type paper box top plate.
5. A cup package as claimed in claim 2, wherein: the tubular folding paper box comprises a tubular paper box top plate, a tubular first side plate, a tubular second side plate, a tubular third side plate and a tubular fourth side plate, wherein the tubular first side plate and the tubular third side plate are oppositely arranged, the tubular second side plate and the tubular fourth side plate are oppositely arranged, one end of the buffer structure is connected with one side of the tubular first side plate, and one side of the tubular paper box top plate is connected with one side of the tubular third side plate.
6. The cup package as set forth in claim 5, wherein: the buffer structure comprises a buffer first connecting plate, a buffer folding part and a buffer second connecting plate which are sequentially connected, wherein the buffer first connecting plate is connected with the tubular first side plate, the buffer first connecting plate is parallel to and contacts with the tubular fourth side plate, the buffer second connecting plate is parallel to and contacts with the tubular second side plate, and the buffer folding part is provided with a plurality of buffer folding lines.
7. The cup package as set forth in claim 5, wherein: and an exhibition window is arranged on the tubular third side plate.
8. The cup package as set forth in claim 5, wherein: the tubular carton top plate is far away from one side of the tubular third side plate, a tubular top plate inserting plate is arranged at the upper end of the tubular second side plate, a second side plate stacking plate is arranged at the upper end of the tubular fourth side plate, a fourth side plate stacking plate is arranged at the upper end of the tubular fourth side plate, and the tubular top plate inserting plate can be inserted into a gap between the second side plate stacking plate, the second side plate stacking plate and the tubular first side plate.
9. The cup package as set forth in claim 5, wherein: the lower extreme of tubular fourth curb plate is equipped with two fourth curb plate picture peg, be equipped with two tray roof sockets on the tray carton roof, two the fourth curb plate picture peg inserts respectively in two tray roof sockets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420166747.3U CN221795248U (en) | 2024-01-23 | 2024-01-23 | A cup packaging box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420166747.3U CN221795248U (en) | 2024-01-23 | 2024-01-23 | A cup packaging box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221795248U true CN221795248U (en) | 2024-10-01 |
Family
ID=92877272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420166747.3U Active CN221795248U (en) | 2024-01-23 | 2024-01-23 | A cup packaging box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221795248U (en) |
-
2024
- 2024-01-23 CN CN202420166747.3U patent/CN221795248U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2797241C (en) | Hammer-lock container | |
| CA2487524C (en) | Carton with corner post construction | |
| US20060249565A1 (en) | Display carton and method for displaying product using same | |
| CN201678187U (en) | Integrated LCD paper packing box | |
| CN211108473U (en) | Four corners buffering beverage bottle box cut-parts | |
| CN212738873U (en) | One-paper-formed non-glue-applied porcelain bowl buffering packaging box | |
| CN219407363U (en) | Carton with outside mosaic structure | |
| CN210853291U (en) | Shock attenuation buffering formula packing carton | |
| CN212830296U (en) | High strength packing carton | |
| CN211544214U (en) | An Eco-Friendly Folding Stacked Product Box | |
| CN214421253U (en) | Buffering inside lining and packing carton | |
| WO2023216944A1 (en) | Bottle packaging structure and box | |
| CN211970409U (en) | An egg buffer packing box and its cut pieces | |
| CN224000059U (en) | Double-deck adjustable packing carton | |
| CN215437359U (en) | Packing box | |
| CN217497182U (en) | Top supporting structure of treadmill carton | |
| CN217995072U (en) | Environment-friendly carton with groove structure inside | |
| CN219115961U (en) | Packing box | |
| CN207580360U (en) | Packing box | |
| CN224061432U (en) | Corrugated carton convenient to stack | |
| JP3056634U (en) | Paper box with partition | |
| CN220221496U (en) | A kind of classification storage packaging box | |
| CN220430782U (en) | Fruit packing box with partition wall structure | |
| CN223072920U (en) | A kind of anti-deformation and high temperature resistant painted folding paper box | |
| CN224171390U (en) | A packaging box with a three-compartment structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Song Xiaoli Inventor after: Liu Kunyu Inventor after: Zhang Chunxiu Inventor after: Liao Ruijuan Inventor after: Yao Yuqi Inventor after: Zhang Lizheng Inventor after: Lu Jiandong Inventor after: Xie Mingsi Inventor after: Fang Yi Inventor after: Zhang Ao Inventor before: Song Xiaoli Inventor before: Liu Kunyu Inventor before: Zhang Chunxiu Inventor before: Liao Ruijuan Inventor before: Yao Yuqi Inventor before: Zhang Lizheng Inventor before: Lu Jiandong Inventor before: Xie Mingsi Inventor before: Fang Yi Inventor before: Zhang Ao |