CN112962857A - Suspended ceiling - Google Patents
Suspended ceiling Download PDFInfo
- Publication number
- CN112962857A CN112962857A CN202110481630.5A CN202110481630A CN112962857A CN 112962857 A CN112962857 A CN 112962857A CN 202110481630 A CN202110481630 A CN 202110481630A CN 112962857 A CN112962857 A CN 112962857A
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- China
- Prior art keywords
- space
- telescopic
- detection
- fixedly arranged
- cylinder body
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
- E04B9/0435—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like having connection means at the edges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/22—Connection of slabs, panels, sheets or the like to the supporting construction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a suspended ceiling which comprises a plurality of supporting rods and a plurality of plastic plates; the supporting rod comprises a fixed shell, two clamping grooves which are symmetrically arranged on two sides of the outer surface of the fixed shell respectively, two matching grooves which are arranged on two ends of the fixed shell respectively, two detection devices which are symmetrically arranged in the two matching grooves, and a supporting device for supporting the plastic plate; the detection device comprises a detection space arranged on one side of the matching groove and a detection part arranged in the detection space, and two plastic plates can abut against each other.
Description
Technical Field
The invention belongs to the field of buildings, and particularly relates to a suspended ceiling.
Background
The furred ceiling occupies fairly important position in whole room is decorated always, does suitable decoration to the room top surface, can not only beautify the indoor environment, can also build rich and colorful interior space artistic image, but current furred ceiling is when the installation owing to be artifical one install the plastic slab on fossil fragments, does not hug closely when making very easily between plastic slab and the plastic slab like this and leads to the total length not enough, leads to the unable whole installations of plastic slab number that originally will install.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the suspended ceiling which can enable the plastic boards to be automatically attached to each other, so that the problem that the length is insufficient due to the existence of gaps between the plastic boards and the original planned number of the plastic boards cannot be installed is solved.
In order to achieve the purpose, the invention adopts the following technical scheme: a suspended ceiling comprising a plurality of support rods and a plurality of plastic panels; the supporting rod comprises a fixed shell, two clamping grooves, two matching grooves, two detection devices and limiting devices, wherein the two clamping grooves are respectively and symmetrically arranged on two sides of the outer surface of the fixed shell; the limiting device comprises an arc-shaped plate fixedly arranged on one side face of one plastic plate and an arc-shaped groove which is arranged on the other side face of the plastic plate and is matched with the arc-shaped plate.
The detection device comprises a detection space arranged on one side of the matching groove and a detection component arranged in the detection space.
The detection part comprises a fixed cylinder body fixedly arranged at the bottom of the detection space, a cylinder space arranged on the fixed cylinder body and provided with an opening facing the top of the detection space, two first communication holes respectively arranged on two side walls of the cylinder space, two working shells respectively fixedly arranged at two side surfaces of the fixed cylinder body, two working spaces respectively arranged in the two working shells, two second communication holes respectively arranged on the two working spaces, two lifting blocks arranged in the two working spaces in a reciprocating manner, lifting springs fixedly arranged at the bottoms of the two lifting blocks and the bottoms of the two working spaces, a fixed threaded rod fixedly arranged at the bottom of a matching groove, an internal threaded pipe rotatably and movably sleeved on the fixed threaded rod, a fixed block fixedly arranged at one end of the internal threaded pipe, a plurality of groups of limiting grooves arranged on the outer surface of the internal threaded pipe along the circumferential direction, a plurality of groups of limiting grooves, The detection parts are respectively arranged on two sides of the fixed cylinder body, each first communication hole is communicated with one second communication hole, each lifting block and the spatial side wall of the cylinder body are fixedly connected with a first water inlet pipe, and the first water inlet pipe is fixedly provided with a first one-way valve; each group of limiting grooves are a plurality of matched rectangular grooves arranged on the outer surface of the internal thread pipe along the length direction.
The detection part comprises a telescopic shell fixedly arranged on one side face of the fixed cylinder body, a telescopic space arranged in the telescopic shell, a third communicating hole arranged on the side wall of the telescopic space, a fourth communicating hole arranged on the side wall of the cylinder body space and communicated with the third communicating hole, a telescopic block arranged in the telescopic space in a reciprocating manner, two rectangular grooves respectively arranged on the side walls of the two sides of the telescopic space, two rectangular blocks respectively fixedly arranged on the side faces of the two sides of the telescopic block and positioned in the two rectangular grooves, a water inlet pipe fixedly arranged on the bottom of the cylinder body space and the end face of the telescopic block, and a second one-way valve fixedly arranged on the water inlet pipe, wherein the bottom of each rectangular block and the side wall of the rectangular groove are respectively and fixedly provided with a first telescopic spring, the water inlet pipe penetrates through the bottom of the detection space and the inside of the telescopic block, and one end of, the other end is communicated with the telescopic space.
In summary, the invention has the following advantages: this product simple structure can let thereby avoid making length not enough owing to have the clearance between the plastic slab to hug closely automatically between plastic slab and the plastic slab, can't install the original planned plastic slab number.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 1.
FIG. 4 is a perspective view of section l at B-B in FIG. 2.
Fig. 5 is an enlarged view of fig. 4 at C.
Fig. 6 is an enlarged view of fig. 5 at D.
Fig. 7 is a sectional view taken at E-E in fig. 2.
Fig. 8 is a schematic structural view of the supporting device.
Fig. 9 is an enlarged view of fig. 8 at F.
Fig. 10 is a longitudinal sectional view schematically showing the stationary cylinder.
Fig. 11 is a top view of the stationary cylinder.
Fig. 12 is a schematic structural view of the limiting device.
Detailed Description
As shown in fig. 1-12, a suspended ceiling includes a plurality of support rods 777 and a plurality of plastic panels 267; the support rod comprises a fixed shell 2, two clamping grooves 400 respectively and symmetrically arranged on two sides of the outer surface of the fixed shell 2, two matching grooves respectively arranged at two ends of the fixed shell 2, two detection devices symmetrically arranged in the two matching grooves, a support device for supporting the plastic plate 267, and limiting devices arranged on two sides of the plastic plate 267; the limiting device comprises an arc-shaped plate fixedly arranged on one side face of one of the plastic plates and an arc-shaped groove which is arranged on the other side face of the plastic plate and matched with the arc-shaped plate, and the detection device comprises a detection space arranged on one side of the matching groove and a detection part arranged in the detection space; the detection device can give a prompt to a user when the product is in a state of being not parallel to the ground; can push one side of arc and remove toward the next door when can letting the plastic slab rebound through setting up of arc and arc, back in the arc gets into the arc, the arc can give thrust of arc on the inner wall of arc, lets two plastic slabs near to can avoid the workman not laminate completely when installing the plastic slab, there is the clearance between messenger's plastic slab and the plastic slab, finally makes the total length let the unable whole installations of plastic slab that original plan will be installed inadequately.
The detection part comprises a fixed cylinder body 100 fixedly arranged at the bottom of the detection space, a cylinder space arranged on the fixed cylinder body 100 and opened towards the top of the detection space, two first communication holes respectively arranged on two side walls of the cylinder space, two working shells 140 respectively fixedly arranged on two side surfaces of the fixed cylinder body 100, two working spaces respectively arranged in the two working shells 140, two second communication holes respectively arranged on the two working spaces, two lifting blocks 141 capable of being moved back and forth arranged in the two working spaces, lifting springs fixedly arranged at the bottoms of the two lifting blocks 141 and at the bottoms of the two working spaces, a fixed threaded rod 110 fixedly arranged at the bottom of a matching groove, an internal threaded pipe 112 rotatably and movably sleeved on the fixed threaded rod 110, a fixed block 156 fixedly arranged at one end of the internal threaded pipe 112, a plurality of groups of limit grooves arranged on the outer surface of the internal threaded pipe 112 along the circumferential direction, Two detection parts respectively arranged at two sides of the fixed cylinder body 100, wherein each first communication hole is communicated with one second communication hole, each lifting block 141 and the side wall of the cylinder body space are fixedly connected with a first water inlet pipe 142, and the first water inlet pipe 142 is fixedly provided with a first one-way valve 143; each set of the limiting grooves is a plurality of matching rectangular grooves arranged on the outer surface of the internally threaded pipe 112 along the length direction.
The detection part comprises a telescopic shell 150 fixedly arranged on one side surface of the fixed cylinder body 100, a telescopic space arranged in the telescopic shell 150, a third communicating hole 899 arranged on the side wall of the telescopic space, a fourth communicating hole 888 arranged on the side wall of the cylinder body space and communicated with the third communicating hole, a telescopic block 151 arranged in the telescopic space in a reciprocating way, two rectangular grooves respectively arranged on the side walls of the two sides of the telescopic space, two rectangular blocks respectively fixedly arranged on the side surfaces of the two sides of the telescopic block 151 and positioned in the two rectangular grooves, a water inlet pipe 152 fixedly arranged on the bottom of the cylinder body space and the end surface of the telescopic block 151, and a second one-way valve 153 fixedly arranged on the water inlet pipe 152, wherein the bottom of each rectangular block and the side wall of the rectangular groove are both fixedly provided with a first telescopic spring, the water inlet pipe 152 penetrates through the bottom of the detection space and the inside of the telescopic block 151, one end of the water inlet pipe 152, the other end is communicated with the telescopic space; the space of the cylinder body is filled with water, the water level is arranged at the lower side of the fourth communication hole, the internal thread pipe 112 is matched with the fixed threaded rod 110 by rotating the internal thread pipe 112 by hands, so that the internal thread pipe 112 moves out to be abutted against the wall surface, when the product is in a state of being not parallel to the ground, the fixed cylinder body can incline, water in the fixed cylinder body can flow into the detection part on one side of the downward incline through the third communicating hole and the fourth communicating hole, the water can push the telescopic block 151 to move downwards, the telescopic block 151 can enter the matched rectangular groove to clamp the internal threaded pipe 112 and prevent the internal threaded pipe 112 from rotating, so that a user can be blocked when rotating the internal threaded pipe 112, the device can know that the product is not in a state parallel to the ground, so that the position can be adjusted in time according to actual conditions, and potential safety hazards caused by the fact that the supporting rod cannot be firmly fixed in the air due to the fact that the product is not in a horizontal state when the product is in contact with the wall surface are avoided; water can return to the space of the cylinder body through the second one-way valve; through the setting of work casing 140, can let water can not spill in the detection part of left and right sides (the left and right direction shown in the drawing) when the bracing piece slightly rotates, but get into work casing 140 in, then can get back to fixed cylinder body again through the second check valve to avoid the bracing piece to be located horizontal position but slightly revolve transfer water and get into and make flexible piece 151 move down and cause the user misjudgement in the detection part, first intercommunication hole, second intercommunication hole, third intercommunication hole, fourth intercommunication all are located same height.
The supporting device comprises two supporting parts which are symmetrically arranged at two ends of the fixed shell; the supporting component comprises two supporting parts which are symmetrically arranged at two sides of one end of the fixed shell; the supporting parts comprise a first sliding rectangular groove 700 arranged on the end face of one end of the fixed shell, two second sliding rectangular grooves 701 respectively arranged on the two side walls of the first sliding rectangular groove 700, a rectangular sliding block 200 capable of being arranged in the first sliding rectangular groove 700 in a reciprocating manner, two movable grooves respectively arranged on the top surface and the bottom surface of the rectangular sliding block 200, two rotating shafts respectively rotatably arranged between the side walls of the two movable grooves, two turning plates 201 respectively fixedly arranged on the two rotating shafts, two torsion springs respectively fixedly arranged on the rotating shafts, a matching space arranged on the rectangular sliding block 200, a moving block 202 capable of being arranged in the matching space in a reciprocating manner, a second expansion spring fixedly arranged between the side wall of the matching space and the moving block 202, two moving rods 203 respectively fixedly arranged on the end face of the moving block 202 close to one end face of the two movable grooves, and two clamping grooves respectively arranged on the two rotating shafts, one end of the torsion spring is fixedly arranged on the side wall of the movable groove, one end of the expansion spring is fixedly arranged on the end face of the moving block 202, which is far away from the two movable grooves, the two clamping grooves are matched with one ends of the two moving rods 203, the ends of the two moving rods, which are matched with the two clamping grooves, are both arranged into arc surfaces, and the two clamping grooves are formed by connecting a rectangular groove and a cylindrical groove; after the supporting rod is supported on the wall surface, the rectangular sliding block 200 is pulled out by hands, the two first sliding rectangular grooves 700 are overturned under the action of the torsion spring, and when the supporting rod is overturned to the horizontal direction, the two moving rods 203 are pushed into the clamping grooves under the action of the telescopic springs to clamp the two first sliding rectangular grooves 700 to prevent the two first sliding rectangular grooves 700 from rotating, so that the plastic plate can be prevented from falling off due to the overturning of the first sliding rectangular grooves 700 when the plastic plate is installed between the two first sliding rectangular grooves 700; and can adjust the length of bracing piece according to indoor width to the suitability is more extensive.
The first one-way valve and the second one-way valve are both in the prior art and are schematic structural diagrams, and therefore are not described in detail.
The upper end of the working space is in a V-shaped flaring shape, so that water can flow onto the lifting block 141 to push the lifting block 141 to move downwards; the water level in the elevating block 141 can be always higher than the interior of the cylinder space by the elevating spring, so that the water in the elevating block 141 can flow back into the cylinder space.
The upper end in flexible space is "V" style of calligraphy flaring form to can let water all flow and promote flexible piece 151 decline on flexible piece 151, after standing still for several seconds on the horizontal direction, water leaves flexible piece 151 through the second check valve and returns to the cylinder body space in the back, can continue rotatory internal thread pipe 112 again.
The upper part of the fixed shell is provided with an A mark which needs to face upwards when in use, so that the opening of the cylinder space can face upwards.
The both sides face of plastic slab 267 is fixed respectively and is provided with a lug, the longitudinal section of lug is isosceles trapezoid to can block the lug card in screens groove and two turn over the board through the inclined plane on the lug, thereby can accomplish the installation of plastic slab and fix.
The upper end surfaces of the lifting block 141 and the telescopic block 151 are respectively fixedly provided with a rubber block, so that water can be prevented from leaking from the seam.
Claims (2)
1. A suspended ceiling, its characterized in that: comprises a plurality of support rods (777) and a plurality of plastic plates (267); the support rod comprises a fixed shell (2), two clamping grooves (400) which are respectively and symmetrically arranged on two sides of the outer surface of the fixed shell (2), two matching grooves, two detection devices which are symmetrically arranged in the two matching grooves, and limiting devices which are arranged on two sides of a plastic plate (267); the limiting device comprises an arc-shaped plate (910) fixedly arranged on one side face of one plastic plate (267) and an arc-shaped groove (911) arranged on the other side face of the plastic plate and matched with the arc-shaped plate (910); the detection device comprises a detection space arranged on one side of the matching groove and a detection component arranged in the detection space; the detection part comprises a fixed cylinder body (100) fixedly arranged at the bottom of the detection space, a cylinder space which is arranged on the fixed cylinder body (100) and has an opening facing the top of the detection space, two first communication holes respectively arranged on two side walls of the cylinder space, two working shells (140) respectively fixedly arranged on two side surfaces of the fixed cylinder body (100), two working spaces respectively arranged in the two working shells (140), two second communication holes respectively arranged on the two working spaces, two lifting blocks (141) arranged in the two working spaces in a reciprocating manner, lifting springs fixedly arranged at the bottoms of the two lifting blocks (141) and the bottoms of the two working spaces, a fixed threaded rod (110) fixedly arranged at the bottom of a matching groove, an internal threaded pipe (112) rotatably and movably sleeved on the fixed threaded rod (110), a fixed block (156) fixedly arranged at one end of the internal threaded pipe (112), The device comprises a plurality of groups of limiting grooves arranged on the outer surface of an internal threaded pipe (112) along the circumferential direction and two detection parts respectively arranged on two sides of a fixed cylinder body (100), wherein each first communication hole is communicated with one second communication hole, each lifting block (141) and the spatial side wall of the cylinder body are fixedly connected with a first water inlet pipe (142), and the first water inlet pipe (142) is fixedly provided with a first one-way valve (143); each group of limiting grooves are a plurality of matched rectangular grooves arranged on the outer surface of the internal thread pipe (112) along the length direction.
2. The suspended ceiling of claim 1, wherein: the detection part comprises a telescopic shell (150) fixedly arranged on one side surface of the fixed cylinder body (100), a telescopic space arranged in the telescopic shell (150), a third communicating hole (899) arranged on the side wall of the telescopic space, a fourth communicating hole (888) arranged on the side wall of the cylinder body space and communicated with the third communicating hole, a telescopic block (151) arranged in the telescopic space in a reciprocating way, two rectangular grooves respectively arranged on the side walls of the two sides of the telescopic space, two rectangular blocks respectively fixedly arranged on the side surfaces of the two sides of the telescopic block (151) and positioned in the two rectangular grooves, a water inlet pipe (152) fixedly arranged on the bottom of the cylinder body space and the end surface of the telescopic block (151), and a second one-way valve (153) fixedly arranged on the water inlet pipe (152), wherein a first telescopic spring is fixedly arranged on the bottom of each rectangular block and the side wall of the rectangular groove, the water inlet pipe (152) penetrates through the bottom of the detection space and the inside of the telescopic, one end of the water inlet pipe (152) is communicated with the cylinder space, and the other end of the water inlet pipe is communicated with the telescopic space.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020104074349 | 2020-05-14 | ||
| CN202010407434.9A CN111549964A (en) | 2020-05-14 | 2020-05-14 | Suspended ceiling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112962857A true CN112962857A (en) | 2021-06-15 |
Family
ID=72006349
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010407434.9A Withdrawn CN111549964A (en) | 2020-05-14 | 2020-05-14 | Suspended ceiling |
| CN202110481630.5A Withdrawn CN112962857A (en) | 2020-05-14 | 2021-04-30 | Suspended ceiling |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010407434.9A Withdrawn CN111549964A (en) | 2020-05-14 | 2020-05-14 | Suspended ceiling |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN111549964A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197732A (en) * | 2021-12-31 | 2022-03-18 | 江苏恒龙装饰工程有限公司 | Energy-saving convection heat radiation aluminous gusset plate suspended ceiling for exhibition hall and installation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112942665B (en) * | 2021-04-02 | 2021-12-24 | 北京施图美达装饰工程有限公司 | Light steel keel gypsum board suspended ceiling structure and construction process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5482240A (en) * | 1993-08-25 | 1996-01-09 | Caraher; Thomas R. | Adjustable hanger for suspended ceilings |
| GB0522580D0 (en) * | 2005-11-04 | 2005-12-14 | Baker William | Levelling apparatus |
| CN204238404U (en) * | 2014-10-31 | 2015-04-01 | 孔幼娟 | A kind of building ceiling component |
| CN206888310U (en) * | 2017-05-19 | 2018-01-16 | 嘉兴市欧高集成家居有限公司 | A kind of Integral ceiling of safety and environmental protection |
| CN110886425A (en) * | 2019-11-19 | 2020-03-17 | 苏州金螳螂文化发展股份有限公司 | Rapid leveling type ceiling mounting structure and method for striding building beam |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2186272Y (en) * | 1994-03-21 | 1994-12-28 | 林丕山 | Combined structure of polyvinyl chloride ceiling and light steel frame |
| CN2225509Y (en) * | 1995-06-15 | 1996-04-24 | 广州金鹏实业有限公司 | Multifunctional joint for hang ceiling keel |
| CN2316380Y (en) * | 1997-11-03 | 1999-04-28 | 宋清国 | Metallic hang ceiling for building |
| KR20120082702A (en) * | 2011-01-14 | 2012-07-24 | 변각균 | Lightweight steel frame ceiling system for indirect light and constructure mehtod for the same |
| KR101618356B1 (en) * | 2013-12-17 | 2016-05-04 | 주식회사 조은데코 | Fit panel assembly |
-
2020
- 2020-05-14 CN CN202010407434.9A patent/CN111549964A/en not_active Withdrawn
-
2021
- 2021-04-30 CN CN202110481630.5A patent/CN112962857A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5482240A (en) * | 1993-08-25 | 1996-01-09 | Caraher; Thomas R. | Adjustable hanger for suspended ceilings |
| GB0522580D0 (en) * | 2005-11-04 | 2005-12-14 | Baker William | Levelling apparatus |
| CN204238404U (en) * | 2014-10-31 | 2015-04-01 | 孔幼娟 | A kind of building ceiling component |
| CN206888310U (en) * | 2017-05-19 | 2018-01-16 | 嘉兴市欧高集成家居有限公司 | A kind of Integral ceiling of safety and environmental protection |
| CN110886425A (en) * | 2019-11-19 | 2020-03-17 | 苏州金螳螂文化发展股份有限公司 | Rapid leveling type ceiling mounting structure and method for striding building beam |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197732A (en) * | 2021-12-31 | 2022-03-18 | 江苏恒龙装饰工程有限公司 | Energy-saving convection heat radiation aluminous gusset plate suspended ceiling for exhibition hall and installation method thereof |
| CN114197732B (en) * | 2021-12-31 | 2022-12-27 | 江苏恒龙装饰工程有限公司 | Energy-saving convection heat radiation aluminous gusset plate suspended ceiling for exhibition hall and installation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111549964A (en) | 2020-08-18 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210615 |
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| WW01 | Invention patent application withdrawn after publication |