CN213682633U - Energy-concerving and environment-protective building wallboard - Google Patents
Energy-concerving and environment-protective building wallboard Download PDFInfo
- Publication number
- CN213682633U CN213682633U CN202022441383.XU CN202022441383U CN213682633U CN 213682633 U CN213682633 U CN 213682633U CN 202022441383 U CN202022441383 U CN 202022441383U CN 213682633 U CN213682633 U CN 213682633U
- Authority
- CN
- China
- Prior art keywords
- wallboard
- energy
- environment
- saving
- bodies
- 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.)
- Expired - Fee Related
Links
- 238000009413 insulation Methods 0.000 claims abstract description 22
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 34
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 5
- 239000012790 adhesive layer Substances 0.000 claims description 5
- 239000011496 polyurethane foam Substances 0.000 claims description 5
- 229920002943 EPDM rubber Polymers 0.000 claims description 4
- 239000011152 fibreglass Substances 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 claims 1
- 239000011151 fibre-reinforced plastic Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000032258 transport Effects 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
Landscapes
- Building Environments (AREA)
Abstract
The application relates to an energy-saving and environment-friendly building wallboard, which comprises a plurality of wallboard bodies, wherein the wallboard bodies are sequentially connected along a straight line, one side of one wallboard body, which is positioned at the end part, is only fixedly provided with a clamping block, the other wallboard body, which is positioned at the end part, is only provided with a clamping groove, one side of the wallboard body, which is positioned at the middle part, is fixedly provided with the clamping block, the other side of the wallboard body is provided with the clamping groove, the clamping blocks are inserted into the adjacent clamping grooves, and a reinforcing assembly is arranged between the two adjacent wallboard bodies; the wallboard body comprises a supporting framework and a skin paved on the outer side of the supporting framework; the support frame includes the horizontal skeleton of two parallels and interval settings, a plurality of vertical skeleton of setting between two horizontal skeletons, wherein two vertical skeleton is located the both ends of horizontal skeleton respectively, adjacent two be provided with the heat insulating block that is used for reinforcing wallboard heat insulating ability between the vertical skeleton. It enhances the heat insulation of the building wallboard and saves a large amount of building resources.
Description
Technical Field
The application relates to the field of building wallboards, in particular to an energy-saving and environment-friendly building wallboard.
Background
The building wall board is a new generation of high-performance building inner partition board produced in industrialized mode, is formed by compounding multiple building materials, has multiple excellent performances of light weight, high strength, fire resistance, crack resistance and the like, and is suitable for separating various building structure types and various indoor parts of buildings.
At present, building wallboard construction period is shorter, and simple to operate, but, for the convenience of building wallboard's installation, building wallboard thickness is generally thinner and adopt concrete placement to make more, and its thermal insulation performance is relatively poor, thickens the wall body, can improve the cost of manufacture again, and is not obvious to promoting the heat insulating ability effect, causes the wasting of resources, and can increase the degree of difficulty of installation.
In view of the above-mentioned related art, the inventor believes that there is a defect in poor thermal insulation performance of the building wallboard.
SUMMERY OF THE UTILITY MODEL
In order to strengthen the heat insulating property of building wallboard, this application provides an energy-concerving and environment-protective building wallboard.
The application provides an energy-concerving and environment-protective building wallboard adopts following technical scheme:
an energy-saving and environment-friendly building wallboard comprises a plurality of wallboard bodies, wherein the wallboard bodies are sequentially connected along a straight line, one side of one wallboard body positioned at an end part is only fixedly provided with a clamping block, the other side of the other wallboard body positioned at the end part is only provided with a clamping groove, one side of the wallboard body positioned at the middle part is fixedly provided with the clamping block, the other side of the wallboard body is provided with the clamping groove, the clamping blocks are inserted into the adjacent clamping grooves, and a reinforcing assembly for connecting the two adjacent wallboard bodies is arranged between the two adjacent wallboard bodies;
the wallboard body comprises a supporting framework for supporting and a skin paved on the outer side of the supporting framework; the support frame includes the horizontal skeleton of two parallels and interval settings, a plurality of vertical skeleton of setting between two horizontal skeletons, wherein two vertical skeleton is located the both ends of horizontal skeleton respectively, adjacent two be provided with the heat insulating block that is used for reinforcing wallboard heat insulating ability between the vertical skeleton.
By adopting the technical scheme, the supporting framework plays a supporting role on the wallboard body and is formed by splicing the transverse framework and the longitudinal framework, the interior of the supporting framework is filled with the relatively light heat-insulating block which can enhance the heat-insulating property of the wallboard and greatly reduce the overall quality of the wallboard, the wallboard is convenient to install, and the skin is used for protecting the internal structure of the wallboard body and enhancing the heat-insulating property of the wallboard; when a constructor builds a building wallboard, firstly cleaning a foundation of the building wallboard to be built, then fixing one of the wallboard bodies positioned at the end parts with the foundation, then connecting one of the wallboard bodies positioned at the middle part with the wallboard body positioned at the end part through the clamping block and the clamping groove, repeating the process, sequentially connecting the next wallboard body with the previous wallboard body through the clamping block and the clamping groove, and finally reinforcing every two adjacent wallboard bodies through the reinforcing assembly, thus finishing building of the building wallboard; the built building wallboard is internally filled with the heat insulation blocks, so that the heat insulation property of the wallboard is enhanced.
Optionally, the heat insulation block is made of polyurethane foam.
Through adopting above-mentioned technical scheme, polyurethane foam is the novel synthetic material that has better heat preservation and waterproof performance, and its coefficient of thermal conductivity is low, low in manufacturing cost, can great promotion wallboard's heat insulating ability effect, and it is open pore structure, and the quality is lighter, greatly reduced the degree of difficulty of installation.
Optionally, the skin is made of glass fiber reinforced plastic.
By adopting the technical scheme, the glass steel has the advantages of light weight, high strength, good heat insulation performance, impermeability, easiness in cleaning and corrosion resistance, and the heat insulation performance of the wall body is improved.
Optionally, an adhesive layer is arranged between the skin and the side wall of the supporting framework, and the skin is bonded on the outer side of the supporting framework.
Through adopting above-mentioned technical scheme, bonding connection structure is simple, convenient operation, and be convenient for with skeleton and insulating block overall seal, promote the heat insulating ability of wallboard.
Optionally, a sealing assembly for improving the connection sealing performance between the clamping block and the clamping groove is arranged between the clamping block and the clamping groove.
Through adopting above-mentioned technical scheme, seal assembly can seal the gap between joint piece and the joint groove, improves the heat insulating ability of wallboard.
Optionally, the sealing assembly comprises a sealing strip coated on the outer surface of the joint block, and a plurality of connecting pieces arranged between the sealing strip and the joint block and used for fixing the sealing strip on the joint block, wherein the sealing strip is in interference fit with the inner side wall of the joint groove.
Through adopting above-mentioned technical scheme, the leakproofness of being connected between joint piece and the joint groove can be improved to the sealing strip to reinforcing building wallboard's leakproofness, the connecting piece is consolidated the sealing strip of cladding at joint piece surface, prevents that the sealing strip from droing from the joint piece, reinforcing building wallboard's leakproofness, interference fit makes two wallboard body coupling more firm, and has further strengthened building wallboard's leakproofness.
Optionally, the sealing strip is made of ethylene propylene diene monomer.
By adopting the technical scheme, the ethylene propylene diene monomer rubber material has good wear resistance, oxidation resistance and corrosion resistance.
Optionally, the connecting member is provided as a screw.
Through adopting above-mentioned technical scheme, the screw connection easy operation, convenient to detach and installation sealing strip, and screw are tired-resistant, low in manufacturing cost.
Optionally, a chamfer is formed at one end, far away from the wallboard body, of the clamping block.
Through adopting above-mentioned technical scheme, the chamfer plays the effect of direction and location for the joint piece inserts the joint inslot, makes things convenient for constructor to insert the joint piece in the joint inslot.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the supporting framework is formed by splicing the horizontal framework and the vertical framework, and light polyurethane foam is filled in the supporting framework, so that the heat insulation property of the wallboard is enhanced, the overall quality of the wallboard is greatly reduced, the production cost is reduced, and the installation of the building wallboard is facilitated;
2. the glass fiber reinforced plastic skin has the advantages of light weight, high strength, good heat insulation performance and impermeability, and improves the heat insulation performance of the wall body;
3. the sealing assembly can seal the gap between the clamping block and the clamping groove, and the heat insulation performance of the wallboard is improved.
Drawings
FIG. 1 is a schematic structural view of a building panel in an embodiment of the present application;
FIG. 2 is a partial sectional view showing a connection relationship between the clip block and the clip groove;
FIG. 3 is a schematic diagram showing an exploded structure of the wall panel body;
fig. 4 is a sectional view taken along line a-a of fig. 1.
Description of reference numerals: 1. a wall panel body; 11. a support framework; 111. a transverse framework; 112. a longitudinal skeleton; 1121. a clamping groove; 12. covering a skin; 13. an adhesive layer; 14. a heat preservation block; 2. a clamping block; 21. chamfering; 3. a reinforcement assembly; 31. a connecting plate; 32. pre-burying a plate; 33. a bolt; 34. a lock washer; 4. a seal assembly; 41. a sealing strip; 42. and (4) screws.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses energy-concerving and environment-protective building wallboard. Referring to fig. 1 and 2, the building wallboard comprises a plurality of wallboard bodies 1, the wallboard bodies 1 are arranged in a cuboid shape, and the wallboard bodies 1 are sequentially arranged along a straight line; one side of one of the wallboard bodies 1 located at the end part is only fixedly provided with a clamping block 2, the clamping block 2 is arranged in a cuboid shape, the other wallboard body 1 located at the end part is only provided with a clamping groove 1121 matched with the clamping block 2, one side of the wallboard body 1 located at the middle part is fixedly provided with the clamping block 2, the other side of the wallboard body is provided with a clamping groove 1121, and the clamping block 2 is inserted into the adjacent clamping groove 1121; one end, away from the wallboard body 1, of the clamping block 2 is provided with a chamfer 21, and the chamfer 21 is used for guiding and positioning the clamping block 2 when being inserted into the clamping groove 1121, so that a constructor can conveniently insert the clamping block 2 into the clamping groove 1121; a reinforcing component 3 is arranged between two adjacent wall plate bodies 1, and the reinforcing component 3 is used for connecting the two adjacent wall plate bodies 1; a sealing component 4 is arranged between the clamping block 2 and the clamping groove 1121, and the sealing component 4 is used for improving the sealing property of connection between the clamping block 2 and the clamping groove 1121.
When the building wallboard is transported to a construction site, firstly, the building wallboard is split into a plurality of wallboard bodies 1, and the wallboard bodies 1 are stacked together, so that the wallboard bodies 1 are convenient to transport; when constructor builds the building wallboard, at first the ground of building wallboard is waited to take in the clearance, it is fixed with one of them wallboard body 1 that is located the tip with the ground, later on with one of them wallboard body 1 that is located the middle part peg graft the mode in joint groove 1121 through joint piece 2 and be connected with the wallboard body 1 that is located the tip, repeat above-mentioned process, be connected next wallboard body 1 with last wallboard body 1 in proper order, seal assembly 4 seals the processing in the gap between joint piece 2 and the joint groove 1121, improve the heat insulating ability of wallboard, consolidate every two adjacent wallboard bodies 1 through consolidating assembly 3 at last, can accomplish the building of building wallboard.
Referring to fig. 3 and 4, the wall panel body 1 comprises a supporting framework 11, the supporting framework 11 is used for supporting the wall panel body 1, a skin 12 is laid on the outer side of the supporting framework 11, the skin 12 is arranged in a rectangular plate shape, the skin 12 is made of glass fiber reinforced plastic, an adhesive layer 13 is arranged between the skin 12 and the side wall of the supporting framework 11, and the skin 12 is bonded on the outer side of the supporting framework 11 through the adhesive layer 13; the supporting framework 11 comprises two horizontal frameworks 111 which are arranged in parallel and at intervals, the horizontal frameworks 111 are arranged in a cuboid shape, a plurality of longitudinal frameworks 112 are arranged between the two horizontal frameworks 111, the longitudinal frameworks 112 are also arranged in a cuboid shape, the longitudinal frameworks 112 are perpendicular to the horizontal frameworks 111, the two longitudinal frameworks 112 are respectively located at two ends of the horizontal frameworks 111, in the same supporting framework 11, the clamping block 2 is fixedly connected with one of the longitudinal frameworks 112 located at the end part, and the clamping groove 1121 is formed in the other longitudinal framework 112 located at the end part; the heat insulation block 14 is arranged between two adjacent longitudinal frameworks 112, the heat insulation block 14 is made of polyurethane foam, and the heat insulation block 14 is used for enhancing the heat insulation performance of the wallboard.
When the building wallboard is used, the supporting framework 11 plays a supporting role for the wallboard body 1, the heat insulating property of the wallboard is enhanced by the heat insulating block 14 filled in the supporting framework 11, and the skin 12 protects and insulates heat for the internal structure of the wallboard body 1, so that the heat insulating property of the wallboard is enhanced.
Referring to fig. 2 and 4, seal assembly 4 is including the cladding sealing strip 41 at the 2 surface of joint piece, and sealing strip 41 adopts ethylene propylene diene monomer to make, and sealing strip 41 and the inside wall interference fit of joint groove 1121 are provided with a plurality of connecting pieces between sealing strip 41 and the joint piece 2, and the connecting piece is used for fixing sealing strip 41 on joint piece 2, and the connecting piece sets up to screw 42, and a plurality of screw 42 are along the even interval arrangement of length direction of joint piece 2.
Building wallboard in the use, sealing strip 41 improves the leakproofness of being connected between joint piece 2 and the joint groove 1121 to improved building wallboard's leakproofness, a plurality of screws 42 fix sealing strip 41 on joint piece 2, thereby prevent that sealing strip 41 from droing from joint piece 2, further improve building wallboard's leakproofness.
Referring to fig. 3 and 4, the reinforcing component 3 includes a plurality of connecting plates 31 that set up between two adjacent wallboard bodies 1, the connecting plate 31 is the setting of rectangular board, connecting plate 31 and two adjacent wallboard body 1 all butt, be provided with built-in board 32 between skin 12 and the longitudinal frame 112, built-in board 32 also is the setting of rectangular board, be provided with four bolts 33 between connecting plate 31 and the wallboard body 1, four bolts 33 are located four extreme departments of connecting plate 31 respectively, bolt 33 and connecting plate 31 and the equal threaded connection of built-in board 32, be provided with locking gasket 34 between bolt 33 and the connecting plate 31, locking gasket 34 and connecting plate 31 butt, locking gasket 34 is used for preventing that bolt 33 is not hard up to drop.
When constructor consolidates two adjacent wallboard bodies 1 through reinforcement assembly 3, at first with connecting plate 31 butt simultaneously on two adjacent wallboard bodies 1, connect connecting plate 31 and the built-in panel 32 of burying underground in wallboard body 1 inside through bolt 33 and locking washer 34 after that, connect two bolts 33 on every wallboard body 1, can accomplish two adjacent wallboard body 1's reinforcement.
The implementation principle of the energy-saving and environment-friendly building wallboard in the embodiment of the application is as follows: when the building wallboard is transported, the building wallboard can be split into a plurality of wallboard bodies 1, and the wallboard bodies 1 are stacked together for transportation; the supporting framework 11 supports the wallboard body 1, a light heat insulation block 14 is filled in the wallboard body, the heat insulation performance of the wallboard can be enhanced by the heat insulation block 14, the overall quality of the wallboard is greatly reduced, and the wallboard is convenient to mount; when a constructor builds a building wallboard, firstly, a foundation of the building wallboard to be built is cleaned, then, the building wallboards are sequentially arranged and connected in a straight line through the clamping blocks 2 and the clamping grooves 1121, the joints of the clamping blocks 2 and the clamping grooves 1121 are sealed through the sealing assemblies 4, and finally, every two adjacent wallboard bodies 1 are reinforced through the reinforcing assemblies 3, so that the building wallboard can be built; when transporting the building wallboard, area when can reduce the building wallboard transportation greatly after 1 piles of a plurality of wallboard bodies to improve the space utilization of transport vechicle, the transport vechicle of being convenient for transports the building wallboard, and the building wallboard intussuseption after putting up is filled with insulating block 14, has strengthened the heat insulating ability of wallboard.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. An energy-concerving and environment-protective building wallboard which characterized in that: the wallboard comprises a plurality of wallboard bodies (1), wherein the wallboard bodies (1) are sequentially connected along a straight line, one side of one wallboard body (1) positioned at the end part is only fixedly provided with a clamping block (2), the other wallboard body (1) positioned at the end part is only provided with a clamping groove (1121), one side of the wallboard body (1) positioned at the middle part is fixedly provided with the clamping block (2), the other side of the wallboard body is provided with the clamping groove (1121), the clamping block (2) is inserted into the adjacent clamping groove (1121), and a reinforcing assembly (3) for connecting the two adjacent wallboard bodies (1) is arranged between the two adjacent wallboard bodies (1);
the wallboard body (1) comprises a supporting framework (11) for supporting and a skin (12) paved on the outer side of the supporting framework (11); the supporting framework (11) comprises two parallel transverse frameworks (111) arranged at intervals and a plurality of longitudinal frameworks (112) arranged between the two transverse frameworks (111), wherein the longitudinal frameworks (112) are respectively positioned at two ends of the transverse frameworks (111), and two adjacent longitudinal frameworks (112) are provided with heat insulation blocks (14) used for enhancing the heat insulation performance of the wallboard.
2. The energy-saving and environment-friendly building wallboard as claimed in claim 1, wherein: the heat insulation block (14) is made of polyurethane foam materials (14).
3. The energy-saving and environment-friendly building wallboard as claimed in claim 1, wherein: the skin (12) is made of glass Fiber Reinforced Plastic (FRP) materials.
4. The energy-saving and environment-friendly building wallboard as claimed in claim 1, wherein: an adhesive layer (13) is arranged between the skin (12) and the side wall of the supporting framework (11), and the skin (12) is bonded on the outer side of the supporting framework (11).
5. The energy-saving and environment-friendly building wallboard as claimed in claim 1, wherein: and a sealing component (4) for improving the connection sealing property between the clamping block (2) and the clamping groove (1121) is arranged between the clamping block and the clamping groove.
6. The energy-saving and environment-friendly building wallboard as claimed in claim 5, wherein: sealing assembly (4) are used for fixing the connecting piece on joint piece (2) with sealing strip (41) including cladding sealing strip (41), a plurality of setting at joint piece (2) surface between sealing strip (41) and joint piece (2), sealing strip (41) and the inside wall interference fit of joint groove (1121).
7. The energy-saving and environment-friendly building wallboard as claimed in claim 6, wherein: the sealing strip (41) is made of ethylene propylene diene monomer rubber (41).
8. The energy-saving and environment-friendly building wallboard as claimed in claim 7, wherein: the connecting piece is provided as a screw (42).
9. An energy saving and environmental friendly building panel as claimed in any one of claims 1 to 8, wherein: a chamfer (21) is formed in one end, far away from the wallboard body (1), of the clamping block (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202022441383.XU CN213682633U (en) | 2020-10-28 | 2020-10-28 | Energy-concerving and environment-protective building wallboard |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202022441383.XU CN213682633U (en) | 2020-10-28 | 2020-10-28 | Energy-concerving and environment-protective building wallboard |
Publications (1)
Publication Number | Publication Date |
---|---|
CN213682633U true CN213682633U (en) | 2021-07-13 |
Family
ID=76762036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202022441383.XU Expired - Fee Related CN213682633U (en) | 2020-10-28 | 2020-10-28 | Energy-concerving and environment-protective building wallboard |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN213682633U (en) |
-
2020
- 2020-10-28 CN CN202022441383.XU patent/CN213682633U/en not_active Expired - Fee Related
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108894456B (en) | Prefabricated foaming ceramic frame exterior wall cladding and manufacturing method thereof | |
CN103615068B (en) | Steel frame heat insulation external wall panel | |
CN2885971Y (en) | Composite thermal insulation board for external wall | |
CN206769055U (en) | A kind of villa prefabricated panel based on C-type steel | |
CN110761565A (en) | Wall manufacturing method and wall manufactured by same | |
CN106760041A (en) | A kind of wall, the combination of assembled wall and its installation method | |
CN107938934B (en) | Composite reinforced wood skeleton wallboard and on-site rapid assembly method | |
CN213682633U (en) | Energy-concerving and environment-protective building wallboard | |
CN206667637U (en) | A kind of green building multifunctional wall body | |
CN201190369Y (en) | Facade panel | |
CN213952530U (en) | Assembled building wall body board | |
CN206571005U (en) | Connecting node between a kind of wall and ground | |
CN215253841U (en) | Picatinny floor | |
CN204531163U (en) | A kind of composite thermal-insulation external wall panel | |
CN101570992B (en) | Outer wallboard | |
CN212176161U (en) | Assembled building side fascia | |
CN204385985U (en) | Combination bearing structure cell curtain wall | |
CN210152052U (en) | Compound heat preservation side fascia of assembled frame construction | |
CN210067136U (en) | ALC wallboard composite wall for modular building | |
CN202831299U (en) | Double-wallboard staggered joint internal partition | |
CN220266876U (en) | Composite heat-insulating board | |
CN201190370Y (en) | Architectural panel | |
CN206299042U (en) | A kind of lightweight precast concrete composite roof board | |
CN211691061U (en) | Energy-saving board for building | |
CN221524052U (en) | AB type composite heat preservation decorative board construction system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210713 |