CN111972893A - Open type wall picture frame - Google Patents
Open type wall picture frame Download PDFInfo
- Publication number
- CN111972893A CN111972893A CN202010831884.0A CN202010831884A CN111972893A CN 111972893 A CN111972893 A CN 111972893A CN 202010831884 A CN202010831884 A CN 202010831884A CN 111972893 A CN111972893 A CN 111972893A
- Authority
- CN
- China
- Prior art keywords
- picture frame
- negative pressure
- zinc
- fixed magnet
- open
- 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.)
- Pending
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 54
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000004411 aluminium Substances 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 11
- 238000007747 plating Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 229910000611 Zinc aluminium Inorganic materials 0.000 claims 1
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 4
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- 229910052725 zinc Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/02—Devices for holding or supporting maps, drawings, or the like, including means for preventing rolling-up
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B47/00—Suction cups for attaching purposes; Equivalent means using adhesives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/83—Use of a magnetic material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
Abstract
The invention discloses an open type wall map picture frame which comprises a zinc-plated aluminum picture frame, wherein a hard bottom plate is arranged in the middle of the zinc-plated aluminum picture frame, a round corner is arranged at the joint of the zinc-plated aluminum picture frame for surrounding, a fixed magnet is arranged inside the round corner, and picture frame fixing holes are arranged at two sides of the fixed magnet inside the round corner. This open-type wall map picture frame, inside through surrounding at four fillets is provided with fixed magnet, and be provided with the iron head at the both ends of zinc-plating aluminium matter picture frame, can guarantee to surround and be connected between the zinc-plating aluminium matter picture frame to the fillet through the iron head with fixed magnet's magnetic force effect, thereby it is more convenient when having guaranteed the installation of zinc-plating aluminium matter picture frame or having dismantled, and can improve the attraction between fillet surrounding and the zinc-plating aluminium matter picture frame through magnetic attraction, make the fillet surround and can not break away from easily between the zinc-plating aluminium matter picture frame, stability has been improved on convenient contact.
Description
Technical Field
The invention relates to the technical field of picture hanging frames, in particular to an open-type picture hanging frame.
Background
In the navigation process of the ship, in order to meet the requirements of ship safety, fire protection, life saving or ship operation and the like, a part of drawings such as a general layout drawing, a fire control chart, an operation performance table and other completion drawings are attached to certain positions of the ship so as to be used for operating crews in emergency.
When the general arrangement drawings, the fireproof control drawings, the operation performance tables and the like are posted, the general arrangement drawings, the fireproof control drawings, the operation performance tables and other drawings are generally replaced conveniently through the wall map frame, and the wall map frame is more attractive visually, however, the problems existing in the use process of the existing wall map frame include: 1. four galvanized aluminum mirror frames need to use four right-angle supports and sixteen screws when being spliced, so that the mounting or dismounting is complicated, the manufacturing period of the parts is long, the manufacturing cost is high, and the requirement of quick mounting is not met, so that the mounting period is prolonged; 2. the existing hanging mode of the picture hanging frame is generally installed by sticking adhesive tapes or screws, and the adhesive tape prints or screw holes are remained on the wall body after the picture hanging frame is detached, so that the attractiveness of the wall body is affected.
Disclosure of Invention
The invention provides an open type picture hanging frame which has the advantages that the magnetic installation of four galvanized aluminum picture frames is quicker, the negative pressure fixation improves the hanging efficiency, and no trace is left on a wall body, and the problems in the background art are solved.
The invention provides the following technical scheme: an open type picture hanging frame comprises a galvanized aluminum picture frame, a hard bottom plate is arranged in the middle of the galvanized aluminum picture frame, the joint of the galvanized aluminum mirror frame is surrounded by a fillet, a fixed magnet is arranged inside the fillet, the inside of the round angle enclosure is provided with a picture frame fixing hole at two sides of the fixed magnet, a right-angle limiting plate is arranged right below the fixed magnet, the right-angle limiting plate is internally provided with a plate limiting hole, two ends of the galvanized aluminum mirror frame are provided with iron heads, the middle part of the galvanized aluminum mirror frame is provided with a negative pressure cabin, the back of the negative pressure cabin is provided with a negative pressure hole, the two sides of the negative pressure cabin are provided with negative pressure airflow channels, the negative pressure airflow channels are positioned at the outer side of the negative pressure cabin and are provided with negative pressure seats, the outside of the negative pressure seat is connected with a corrugated pipe, and the back of the negative pressure seat is positioned outside the negative pressure hole and is connected with a suction friction disc.
Preferably, the number of the galvanized aluminum mirror frames is four, iron heads are arranged at two ends of each of the four galvanized aluminum mirror frames, and the galvanized aluminum mirror frames are made of galvanized aluminum.
Preferably, the round corners are surrounded and formed by plastic materials, the number of the round corners is four, and the round corners are surrounded and symmetrically distributed at four corners of the galvanized aluminum mirror frame.
Preferably, the fixed magnet's the profile of cutting into the top down is fan-shaped, and the circular arc radian of fixed magnet is unanimous with the radian that the fillet surrounded, the quantity of fixed magnet is four.
Preferably, the setting angle of the right-angle limiting plate is 90 degrees.
Preferably, the depth of the negative pressure chamber is 2 cm.
Preferably, the bellows is connected to a negative pressure fan device.
Preferably, the suction friction disc is made of rubber, the shore hardness of the suction friction disc is 20A, and the caliber of the suction friction disc is gradually increased from the negative pressure hole to the back surface of the negative pressure cabin.
The invention has the following beneficial effects:
1. this open-type wall map picture frame, inside through surrounding at four fillets is provided with fixed magnet, and be provided with the iron head at the both ends of zinc-plating aluminium matter picture frame, can guarantee to surround and be connected between the zinc-plating aluminium matter picture frame to the fillet through the iron head with fixed magnet's magnetic force effect, thereby it is more convenient when having guaranteed the installation of zinc-plating aluminium matter picture frame or having dismantled, and can improve the attraction between fillet surrounding and the zinc-plating aluminium matter picture frame through magnetic attraction, make the fillet surround and can not break away from easily between the zinc-plating aluminium matter picture frame, stability has been improved on convenient contact.
2. This open-type wall map picture frame is provided with the burden cabin through the back at the stereoplasm bottom plate, and the back in burden cabin is provided with negative pressure hole and suction friction disc, can make this open-type wall map picture frame can fix on the wall through the setting of these two structures to setting through the negative pressure can also adsorb total arrangement picture, fire prevention control chart, operating performance table isotructure, improves stability.
Drawings
FIG. 1 is a top view of a zinc-coated aluminum mirror frame structure according to the present invention;
FIG. 2 is a perspective view of the rounded corner enclosure of the present invention;
FIG. 3 is a top cross-sectional view of the fillet surrounding structure of the present invention;
FIG. 4 is a schematic perspective view of the negative pressure chamber of the present invention;
fig. 5 is a schematic structural view of a suction friction disc at the bottom of the negative pressure cabin.
In the figure: 1. a galvanized aluminum mirror frame; 2. a rigid base plate; 3. round angle surrounding; 4. fixing a magnet; 5. a mirror frame fixing hole; 6. a right-angle limiting plate; 7. plate limiting holes; 8. an iron head; 9. a negative pressure cabin; 10. a negative pressure hole; 11. a negative pressure airflow channel; 12. a negative pressure seat; 13. a bellows; 14. a suction friction disk.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1-5, an open type wall map picture frame comprises a zinc-coated aluminum picture frame 1, a hard bottom plate 2 is arranged in the middle of the zinc-coated aluminum picture frame 1, a round corner surrounding 3 is arranged at the joint of the zinc-coated aluminum picture frame 1, the round corner surrounding 3 is made of plastic materials, the number of the round corner surrounding 3 is four, the round corner surrounding 3 is symmetrically distributed at four corners of the zinc-coated aluminum picture frame 1, the round corner surrounding 3 is made of plastic materials, the manufacturing cost of the round corner surrounding 3 is lower, the quality of the plastic is lighter, the overall quality of the zinc-coated aluminum picture frame 1 can be effectively reduced, the fixing stability is improved, a fixed magnet 4 is arranged inside the round corner surrounding 3, the downward-cut graph of the fixed magnet 4 is fan-shaped, the arc radian of the fixed magnet 4 is consistent with that of the round corner surrounding 3, the number of the fixed magnet 4 is four, the fan-shaped edge of the fixed magnet 4 can be jointed with the fan-shaped edge of the round angle surrounding 3 by the fan-shaped arrangement of the top-down pattern of the fixed magnet 4, the stability of jointing installation is ensured, in addition, the number of the fixed magnets 4 is four, the magnetic absorption installation can be carried out between the four fixed magnets 4 and the four galvanized aluminum mirror frames 1 by the four fixed magnets 4, a mirror frame is formed, the two sides of the fixed magnet 4 inside the round angle surrounding 3 are provided with mirror frame fixing holes 5, a right-angle limiting plate 6 is arranged under the fixed magnet 4 inside the round angle surrounding 3, the setting angle of the right-angle limiting plate 6 is 90 degrees, the plate limiting holes 7 can be used for installing the hard bottom plate 2 and the panel by the setting of the right-angle limiting plate 6, the installation stability is improved, the plate limiting holes 7 are arranged inside the right-angle limiting plate 6, the two ends of the galvanized aluminum mirror frame, the number of the galvanized aluminum mirror frames 1 is four, two ends of each of the four galvanized aluminum mirror frames 1 are respectively provided with an iron head 8, the galvanized aluminum mirror frames 1 are made of galvanized aluminum, the four galvanized aluminum mirror frames 1 can be spliced into a whole mirror frame through the arrangement of four galvanized aluminum mirror frames 1, so that a drawing can be pasted, the two ends of each of the other four galvanized aluminum mirror frames 1 are respectively provided with the iron heads 8 which can be adsorbed by the fixed magnets 4, so that magnetic adsorption installation is realized, the installation stability is ensured, the middle part of each galvanized aluminum mirror frame 1 is provided with the negative pressure chamber 9, the depth of the negative pressure chamber 9 is 2cm, the arrangement of the negative pressure chamber 9 with the depth of 2cm is adopted, the whole thickness of the equipment can be ensured not to be too thick, the installation space can be effectively reduced, the space utilization rate is ensured to be maximized, and the negative pressure formed in the effective space is larger, the fixing effect brought is better, the back of the negative pressure cabin 9 is provided with a negative pressure hole 10, two sides of the negative pressure cabin 9 are provided with negative pressure airflow channels 11, the negative pressure airflow channels 11 are positioned at the outer side of the negative pressure cabin 9 and are provided with a negative pressure seat 12, the outside of the negative pressure seat 12 is connected with a corrugated pipe 13, the corrugated pipe 13 is connected with a negative pressure fan device, through the arrangement of the corrugated pipe 13 connected with the negative pressure fan device, the negative pressure effect can be brought to the inside of the negative pressure cabin 9 through the corrugated pipe 13, and then the negative pressure is adsorbed and fixed, the back of the negative pressure cabin 9 is positioned at the outside of the negative pressure hole 10 and is connected with a suction friction disc 14, the suction friction disc 14 is prepared by a rubber material, the Shore hardness of the suction friction disc 14 is 20A, the caliber of the suction friction disc 14 is increasingly larger from the negative pressure hole 10 to the, the stability of the suction force is ensured, and the shore hardness of the suction friction disc 14 is 20A to ensure the flexibility of the suction friction disc 14 and improve the stability.
The theory of operation, when this device was installed, at first used two fillets to surround 3 and three zinc-plated aluminum matter picture frames and spliced out "U" font that only has a breach, inserted stereoplasm bottom plate 2 and required sticker afterwards, then placed a transparent panel in the front of sticker, then surrounded 3 splices with two fillets with a zinc-plated aluminum matter picture frame 1 and two fillets and accomplish the installation to the inside that two zinc-plated aluminum matter picture frames 1 are complete, can.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.
Claims (8)
1. The utility model provides an open-type wall map picture frame, includes zinc-plated aluminium matter picture frame (1), its characterized in that: the middle part of the galvanized aluminum picture frame (1) is provided with a hard bottom plate (2), the joint of the galvanized aluminum picture frame (1) is provided with a round corner surrounding (3), the round corner surrounding (3) is internally provided with a fixed magnet (4), the round corner surrounding (3) is internally provided with a picture frame fixing hole (5) at two sides of the fixed magnet (4), a right-angle limiting plate (6) is arranged under the fixed magnet (4) inside the round corner surrounding (3), a plate limiting hole (7) is arranged inside the right-angle limiting plate (6), iron heads (8) are arranged at two ends of the galvanized aluminum picture frame (1), a negative pressure chamber (9) is arranged at the middle part of the galvanized aluminum picture frame (1), a negative pressure hole (10) is arranged at the back of the negative pressure chamber (9), negative pressure airflow channels (11) are arranged at two sides of the negative pressure chamber (9), and a negative pressure seat (12) is arranged at the outer side of the negative pressure airflow channel (11) positioned, the outside of the negative pressure seat (12) is connected with a corrugated pipe (13), and the back of the negative pressure cabin (9) is positioned outside the negative pressure hole (10) and is connected with a suction friction disc (14).
2. An open-ended hanging picture frame as claimed in claim 1, wherein: the number of the galvanized aluminum mirror frames (1) is four, iron heads (8) are arranged at two ends of each of the four galvanized aluminum mirror frames (1), and the galvanized aluminum mirror frames (1) are made of galvanized aluminum.
3. An open-ended hanging picture frame as claimed in claim 1, wherein: the corner angle surrounds (3) and forms through the preparation of plastics material, and the quantity that the corner angle surrounds (3) is four, the corner angle surrounds (3) symmetric distribution in the four corners of zinc-aluminum plating picture frame (1).
4. An open-ended hanging picture frame as claimed in claim 1, wherein: the utility model discloses a magnet, including fixed magnet (4), the arc radian of fixed magnet (4) is unanimous with the radian that the fillet surrounds (3), the quantity of fixed magnet (4) is four.
5. An open-ended hanging picture frame as claimed in claim 1, wherein: the right-angle limiting plate (6) is arranged at an angle of 90 degrees.
6. An open-ended hanging picture frame as claimed in claim 1, wherein: the depth of the negative pressure cabin (9) is 2 cm.
7. An open-ended hanging picture frame as claimed in claim 1, wherein: the corrugated pipe (13) is connected with negative pressure fan equipment.
8. An open-ended hanging picture frame as claimed in claim 1, wherein: the suction friction disc (14) is made of rubber, the Shore hardness of the suction friction disc (14) is 20A, and the caliber of the suction friction disc (14) is gradually increased from the negative pressure hole (10) to the back of the negative pressure cabin (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010831884.0A CN111972893A (en) | 2020-08-18 | 2020-08-18 | Open type wall picture frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010831884.0A CN111972893A (en) | 2020-08-18 | 2020-08-18 | Open type wall picture frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111972893A true CN111972893A (en) | 2020-11-24 |
Family
ID=73434629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010831884.0A Pending CN111972893A (en) | 2020-08-18 | 2020-08-18 | Open type wall picture frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111972893A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201064332Y (en) * | 2007-05-25 | 2008-05-28 | 王文革 | Photo frame for light picture |
| CN101530276A (en) * | 2009-04-20 | 2009-09-16 | 朱晓峮 | Polystyrene picture frame/frame, application and technology of polystyrene in manufacturing picture frame/frame |
| CN202636348U (en) * | 2012-05-07 | 2013-01-02 | 福建省尤溪县三林木业有限公司 | Combined photo frame |
| CN103284527A (en) * | 2013-06-24 | 2013-09-11 | 周高超 | Magnetic assembled picture frame |
| CN203873432U (en) * | 2014-05-13 | 2014-10-15 | 周辉 | Novel photo frame |
| KR101702443B1 (en) * | 2015-09-17 | 2017-02-03 | 오건희 | a multi-function picture frame |
| CN207754937U (en) * | 2017-07-20 | 2018-08-24 | 徐国伟 | A kind of frame facilitating installation |
-
2020
- 2020-08-18 CN CN202010831884.0A patent/CN111972893A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201064332Y (en) * | 2007-05-25 | 2008-05-28 | 王文革 | Photo frame for light picture |
| CN101530276A (en) * | 2009-04-20 | 2009-09-16 | 朱晓峮 | Polystyrene picture frame/frame, application and technology of polystyrene in manufacturing picture frame/frame |
| CN202636348U (en) * | 2012-05-07 | 2013-01-02 | 福建省尤溪县三林木业有限公司 | Combined photo frame |
| CN103284527A (en) * | 2013-06-24 | 2013-09-11 | 周高超 | Magnetic assembled picture frame |
| CN203873432U (en) * | 2014-05-13 | 2014-10-15 | 周辉 | Novel photo frame |
| KR101702443B1 (en) * | 2015-09-17 | 2017-02-03 | 오건희 | a multi-function picture frame |
| CN207754937U (en) * | 2017-07-20 | 2018-08-24 | 徐国伟 | A kind of frame facilitating installation |
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Application publication date: 20201124 |
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| RJ01 | Rejection of invention patent application after publication |