CN111677181B - Frame roof for building decoration and finishing engineering - Google Patents
Frame roof for building decoration and finishing engineering Download PDFInfo
- Publication number
- CN111677181B CN111677181B CN202010508856.5A CN202010508856A CN111677181B CN 111677181 B CN111677181 B CN 111677181B CN 202010508856 A CN202010508856 A CN 202010508856A CN 111677181 B CN111677181 B CN 111677181B
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- Prior art keywords
- keel
- frame
- bolt
- hanging
- strip
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- 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
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- 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
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
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- 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
- E04B9/06—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by constructional features of the supporting construction, e.g. cross section or material of framework members
- E04B9/12—Connections between non-parallel members of the supporting construction
- E04B9/16—Connections between non-parallel members of the supporting construction the members lying in different planes
-
- 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
- E04B9/18—Means for suspending the supporting construction
Abstract
The invention discloses a building decoration project frame roof, which belongs to the technical field of suspended ceilings, and adopts the technical scheme that the building decoration project frame roof comprises a keel frame, a hanging mechanism and a frame module, wherein the hanging mechanism is arranged at the top of the keel frame and used for hanging the keel frame on the roof, and the frame module is arranged below the keel frame; the keel frame comprises a main keel and a secondary keel, a hanging piece is slidably arranged at the top of the main keel, protruding parts matched with the secondary keel are arranged on two sides of the hanging piece, and the protruding parts are clamped inside the secondary keel; the frame module comprises a frame module, a secondary keel and a fastener, wherein the secondary keel is arranged on the frame module, the fastener is arranged on the top of the frame module, the secondary keel is provided with a fastening hole matched with the fastener for use, and the frame module is clamped inside the fastening hole through the fastener to be connected with the secondary keel.
Description
Technical Field
The invention relates to the technical field of suspended ceilings, in particular to a frame top for building decoration and finishing engineering.
Background
The suspended ceiling is a common link in decoration, and the suspended ceiling is different in classification according to different decorative materials. The ceiling decoration material is the main basis of distinguishing the ceiling name, and mainly has: light steel keel gypsum board suspended ceiling, mineral wool board suspended ceiling, splint suspended ceiling, rectangular aluminous gusset plate suspended ceiling of dysmorphism, square lacquer aluminous gusset plate suspended ceiling, colored drawing glass suspended ceiling, aluminium honeycomb perforation abatvoix suspended ceiling, full room double entry suspended ceiling etc. can not only beautify the indoor environment, can also build rich and varied interior space artistic image. When the ceiling decoration material and the design scheme are selected, the principle of material saving, firmness, safety, beauty and practicability is followed.
Along with the development of decoration and finishing, especially some offices, because construction cycle is short, and the enterprise needs the reduction decoration cost as far as possible, select to use the frame top to replace traditional closed furred ceiling mode during consequently some office furred ceilings are decorated, current frame top is in the process of erectting, need erect fossil fragments at the roof, then use fastening screw etc. to fix banding section bar on keel frame, not only work efficiency is lower, and in actual installation, easily cause keel frame acutely to rock, probably influence the stability of being connected between its and the roof, in addition in case position dislocation appears in the installation, hardly adjust it, thereby need pull down its whole, the construction progress has seriously been influenced.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a frame top for building decoration and finishing engineering, which has the advantages of higher frame installation efficiency, safer frame installation process and convenience in frame adjustment.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A frame top of building decoration project comprises a keel frame, a hanging mechanism and a frame module, wherein the hanging mechanism is arranged at the top of the keel frame and used for hanging the keel frame on a roof, and the frame module is arranged below the keel frame;
the keel frame comprises a main keel and a secondary keel, a hanging piece is slidably arranged at the top of the main keel, protruding parts matched with the secondary keel are arranged on two sides of the hanging piece, and the protruding parts are clamped inside the secondary keel;
the top of frame module is provided with the fastener, seted up on the secondary joist and used the knot hole with the fastener cooperation, the frame module passes through the fastener card and realizes being connected with the secondary joist inside the knot hole.
Further, it includes the jib to hang the mechanism, the bottom of jib with hang a threaded connection, hang on the roof on the top of jib, the surperficial threaded connection of jib has two lock nut, two lock nut sets up respectively in the both sides of hanging a.
Further, the frame module is including the first bar smallpox section bar of horizontal setting and the second bar smallpox section bar of vertical setting, threaded hole is seted up to one side of first bar smallpox section bar, the one end of second bar smallpox section bar is provided with first connecting piece, the other end of second bar smallpox section bar is provided with the second connecting piece that uses with first connecting piece cooperation, and two adjacent second bar smallpox section bars are connected the realization through first connecting piece and second connecting piece and threaded hole and are connected with being connected of first bar smallpox section bar.
Furthermore, a screw is also arranged below the secondary keel and penetrates through the secondary keel and is in threaded connection with the boss.
Furthermore, a self-tapping screw is arranged on the hanging piece, penetrates through the hanging piece and is in threaded connection with the main keel, and the self-tapping screw is integrally inclined.
Furthermore, the first connecting piece comprises a first bolt, a thread groove is formed in one end of the first bolt, the second connecting piece comprises a second bolt, a thread column is fixedly connected to one end of the second bolt, the thread column is in threaded connection with the thread groove, and the surface thread directions of the second bolt and the first bolt are opposite.
Further, the fastener includes the double flute seat, the equal fixedly connected with spring in inside both sides of double flute seat, the one end fixedly connected with dog of spring, one side fixedly connected with of dog extends to the outside fixture block of double flute seat, and the fixture block extends the partial shape of double flute seat and is right angled triangle, the equal fixedly connected with stopper in other both sides of double flute seat, the bottom fixedly connected with screw of double flute seat, double flute seat passes through the screw and is connected with first bar smallpox section bar.
Further, detain the both sides in hole all seted up with stopper assorted breach, and be provided with spacing seat along breach department on the secondary joist, the stopper joint is in the inside of spacing seat.
Further, the first bolt and the second bolt are both stud bolts.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) according to the scheme, the main keel and the secondary keel are hung on the roof through the hanging mechanism matched with the hanging piece, in the process, the hanging piece is clamped inside the secondary keel through the protruding portion so that the secondary keel can be fixed on the main keel, meanwhile, the fastener is arranged on the frame module, when the frame module is installed on the keel frame, the fastener is only required to be aligned to the buckling hole to push the frame module to be clamped inside the buckling hole, and the frame module can be quickly installed;
(2) according to the scheme, the main keel and the secondary keel are connected by arranging the hanging piece, compared with a traditional connection mode, a hanging piece for the secondary keel is removed, the cost is saved, and under the matching of the self-tapping screw and the screw below the secondary keel, the main keel and the hanging piece are connected more stably and are not easy to slide;
(3) this scheme is through setting up the stopper on double-groove seat, when promoting the fastener to rise, when the fastener card is inside the secondary joist, the stopper card is inside spacing seat, prescribes a limit to the vertical direction of double-groove seat, can make double-groove seat and detain the position between the hole inseparabler simultaneously, reduces its possibility of taking place slight rotation.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic view of the skeleton structure of the present invention;
FIG. 3 is a schematic structural diagram of a frame module according to the present invention;
figure 4 is a schematic view of the connection of the hanger of the present invention to the main runner;
figure 5 is a schematic view of the connection of the hanger of the present invention to the cross runner;
FIG. 6 is an enlarged view taken at A of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic view of a fastener of the present invention;
FIG. 8 is a schematic view of a fastener of the present invention; .
The reference numbers in the figures illustrate:
1. a main keel; 2. a secondary keel; 3. a hanger; 4. a boss portion; 5. a fastener; 501. a double-groove seat; 502. a spring; 503. a stopper; 504. a clamping block; 505. a screw; 506. a limiting block; 6. buckling holes; 7. a self-tapping screw; 8. a boom; 9. a lock nut; 10. a first strip-shaped ceiling profile; 11. a second strip-shaped ceiling profile; 12. a first connecting member; 1201. a first bolt; 1202. a thread groove; 13. a second connecting member; 1301. a second bolt; 1302. a threaded post; 14. a limiting seat.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Referring to fig. 1 to 8, in an embodiment of the present invention, a frame top for building decoration engineering includes a keel frame, a hanging mechanism and a frame module, wherein the hanging mechanism is disposed at the top of the keel frame and used for hanging the keel frame on a roof, and the frame module is disposed below the keel frame;
the keel frame comprises a main keel 1 and a secondary keel 2, a hanging piece 3 is slidably arranged at the top of the main keel 1, protruding parts 4 matched with the secondary keel 2 for use are arranged on two sides of the hanging piece 3, and the protruding parts 4 are clamped inside the secondary keel 2;
the top of frame module is provided with fastener 5, has seted up on secondary joist 2 to use with the cooperation of fastener 5 and has detained hole 6, and the frame module passes through 5 cards of fastener to be realized inside detaining hole 6 being connected with secondary joist 2.
Referring to fig. 4 to 5, the hanging mechanism comprises a hanging rod 8, the bottom end of the hanging rod 8 is in threaded connection with a hanging piece 3, the top end of the hanging rod 8 is hung on the roof, the surface of the hanging rod 8 is in threaded connection with two locking nuts 9, the two locking nuts 9 are respectively arranged on two sides of the hanging piece 3 and are connected with the hanging piece 3 through the hanging rod 8, the keel frame is conveniently fixed on the roof, and meanwhile, the hanging piece 3 and the hanging rod 8 are more stably connected through the positioning of the two locking nuts 9.
Referring to fig. 5, the lower part of the secondary keel 2 is also provided with a screw, the screw penetrates through the secondary keel 2 and is in threaded connection with the boss 4, the screw has the effect of positioning the secondary keel 2, and the phenomenon of displacement between the secondary keel 2 and the main keel 1 is prevented.
Referring to fig. 5, the hanging piece 3 is provided with a tapping screw 7, the tapping screw 7 penetrates through the hanging piece 3 and is in threaded connection with the main keel 1, the whole tapping screw 7 is inclined, and the tapping screw 7 plays a role in reinforcing the hanging piece 3 and the main keel 1.
Referring to fig. 3, 5 and 6, the frame module includes a first strip-shaped ceiling profile 10 arranged horizontally and a second strip-shaped ceiling profile 11 arranged longitudinally, one side of the first strip-shaped ceiling profile 10 is provided with a threaded hole, one end of the second strip-shaped ceiling profile 11 is provided with a first connecting piece 12, the other end of the second strip-shaped ceiling profile 11 is provided with a second connecting piece 13 used in cooperation with the first connecting piece 12, and two adjacent second strip-shaped ceiling profiles 11 are connected with the threaded hole through the first connecting piece 12 and the second connecting piece 13 to realize connection with the first strip-shaped ceiling profile 10; the first connecting piece 12 comprises a first bolt 1201, a thread groove 1202 is formed in one end of the first bolt 1201, the second connecting piece 13 comprises a second bolt 1301, a thread column 1302 is fixedly connected to one end of the second bolt 1301, the thread column 1302 is in threaded connection with the thread groove 1202, the surface thread directions of the second bolt 1301 and the first bolt 1201 are opposite, when the thread column 1302 is screwed into the thread groove 1202, reverse acting force applied between the second bolt 1301 and the first bolt 1201 cannot easily break away from a thread hole, and the second strip-shaped ceiling profile 11 is tightly connected with the first strip-shaped ceiling profile 10 by matching locking of the thread column 1302 and the thread groove 1202.
Referring to fig. 7 to 8, the fastener 5 includes a double-groove seat 501, a spring 502 is fixedly connected to both sides of the interior of the double-groove seat 501, a stopper 503 is fixedly connected to one end of the spring 502, a fixture block 504 extending to the exterior of the double-groove seat 501 is fixedly connected to one side of the stopper 503, the portion of the fixture block 504 extending out of the double-groove seat 501 is in the shape of a right triangle, a stopper 506 is fixedly connected to both sides of the double-groove seat 501, a screw 505 is fixedly connected to the bottom of the double-groove seat 501, the double-groove seat 501 is connected to the first strip-shaped ceiling profile 10 through the screw 505, when the double-groove seat 501 is installed, the double-groove seat 501 can be installed on the first strip-shaped ceiling profile 10 through the screw 505, then the second strip-shaped ceiling profile 11 is installed on the first strip-shaped ceiling profile 10, the double-groove seat 501 is aligned with the fastening hole 6 and pushed into the fastening hole 6, the fastening hole 6 extrudes the fixture block 504 to enable the double-groove seat 501 to retract into the interior, when the double-groove seat 501 completely enters the buckling hole 6, the clamping block 504 extends out and is clamped on the secondary keel 2 under the pushing of the spring 502, so that the installation of the frame module is completed, and when the frame module needs to be disassembled later, the clamping block 504 can be extruded from the inside of the secondary keel 2 to be retracted into the buckling hole 6, and the frame module can be disassembled quickly.
Referring to fig. 6, detain the both sides of hole 6 and all seted up with stopper 506 assorted breach, and be provided with spacing seat 14 along breach department on secondary joist 2, stopper 506 joint in the inside of spacing seat 14, the breach makes pushing of stopper 506 can not be obstructed, stopper 506 card is in the inside of spacing seat 14 simultaneously, prescribes a limit to the vertical direction of double flute seat 501, can make double flute seat 501 and detain the position between the hole 6 inseparabler simultaneously, reduce its possibility of taking place slight rotation.
Referring to fig. 6, the first bolt 1201 and the second bolt 1301 are stud bolts, which facilitate the installation of the first bolt 1201 and the second bolt 1301 to both ends of the second bar-shaped ceiling profile 11.
The working principle of the invention is as follows: the main keel 1 and the secondary keel 2 are connected by arranging the hanging piece 3, compared with the traditional connection mode, the hanging piece for the secondary keel 2 is removed, the cost is saved, the secondary keel 2, the main keel 1 and the hanging piece 3 are connected more stably and are not easy to slide under the matching of the self-tapping screw 7 and the screw below the secondary keel 2, the main keel 1 and the secondary keel 2 are hung on the roof by matching the hanging piece 3 through the hanging mechanism, in the process, the hanging piece 3 is clamped inside the secondary keel 2 through the bulge part 4 so that the secondary keel 2 can be fixed on the main keel 1, meanwhile, the fastener 5 is arranged on the frame module, when the frame module is installed on the keel frame, the double-groove seat 501 is aligned to the buckling hole 6 and is pushed into the buckling hole 6, in the process, the buckling hole 6 extrudes the clamping block 504 to enable the clamping block to retract into the inside of the double-groove seat 501, when the double-groove seat 501 completely enters the buckling hole 6, under the promotion of spring 502, fixture block 504 stretches out and the card is on secondary joist 2, accomplishes the installation of frame module from this, and this process greatly reduced is long when the installation, has reduced the slip of keel frame when the installation, when appearing the installation dislocation simultaneously, can follow secondary joist 2 inside, extrudees fixture block 504, makes it retract to inside detaining hole 6, can be with the quick dismantlement of frame module this moment, is convenient for follow-up adjust the frame.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (6)
1. The frame top for the building decoration project is characterized by comprising a keel frame, a hanging mechanism and a frame module, wherein the hanging mechanism is arranged at the top of the keel frame and used for hanging the keel frame on a roof, and the frame module is arranged below the keel frame;
the keel frame comprises a main keel (1) and a secondary keel (2), a hanging piece (3) is slidably matched with the top of the main keel (1), protruding parts (4) matched with the secondary keel (2) for use are arranged on two sides of the hanging piece (3), and the protruding parts (4) are clamped inside the secondary keel (2);
the top of the frame module is provided with a fastener (5), the secondary keel (2) is provided with a buckling hole (6) matched with the fastener (5) for use, and the frame module is clamped inside the buckling hole (6) through the fastener (5) to realize connection with the secondary keel (2);
the frame module comprises a first strip-shaped ceiling sectional material (10) transversely arranged and a second strip-shaped ceiling sectional material (11) longitudinally arranged, a threaded hole is formed in one side of the first strip-shaped ceiling sectional material (10), a first connecting piece (12) is arranged at one end of the second strip-shaped ceiling sectional material (11), a second connecting piece (13) matched with the first connecting piece (12) for use is arranged at the other end of the second strip-shaped ceiling sectional material (11), two adjacent second strip-shaped ceiling sectional materials (11) are connected with the threaded hole through the first connecting piece (12) and the second connecting piece (13) to realize the connection with the first strip-shaped ceiling sectional material (10), the first connecting piece (12) comprises a first bolt (1201), a threaded groove (1202) is formed in one end of the first bolt (1201), the second connecting piece (13) comprises a second bolt (1301), one end of the second bolt (1301) is fixedly connected with a threaded column (1302), the threaded column (1302) is in threaded connection with the threaded groove (1202), and the surface thread directions of the second bolt (1301) and the first bolt (1201) are opposite;
hang and be provided with self tapping screw (7) on piece (3), self tapping screw (7) run through and hang piece (3) and with main joist (1) threaded connection, and self tapping screw (7) wholly is the slope form.
2. The architectural decoration finishing engineering frame top of claim 1, wherein: hang the mechanism and include jib (8), the bottom of jib (8) with hang a (3) threaded connection, hang on the roof on the top of a house on the top of jib (8), the surperficial threaded connection of jib (8) has two lock nut (9), two lock nut (9) set up respectively in the both sides of hanging a (3).
3. The architectural decoration finishing engineering frame top of claim 1, wherein: the lower part of the secondary keel (2) is also provided with a screw, and the screw penetrates through the secondary keel (2) and is in threaded connection with the boss (4).
4. The architectural decoration finishing engineering frame top of claim 1, wherein: fastener (5) are including two groove seats (501), the equal fixedly connected with spring (502) in inside both sides of two groove seats (501), the one end fixedly connected with dog (503) of spring (502), one side fixedly connected with of dog (503) extends to outside fixture block (504) of two groove seats (501), and fixture block (504) extend the partial shape of two groove seats (501) and be right angled triangle, the equal fixedly connected with stopper (506) in other both sides of two groove seats (501), the bottom fixedly connected with screw (505) of two groove seats (501), two groove seats (501) are connected with first bar smallpox section bar (10) through screw (505).
5. The architectural decoration finishing engineering frame top of claim 4, wherein: detain the both sides of hole (6) all seted up with stopper (506) assorted breach, and secondary joist (2) are gone up and are provided with spacing seat (14) along breach department, stopper (506) joint in the inside of spacing seat (14).
6. The architectural decoration finishing engineering frame top of claim 1, wherein: the first bolt (1201) and the second bolt (1301) are both stud bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010508856.5A CN111677181B (en) | 2020-06-06 | 2020-06-06 | Frame roof for building decoration and finishing engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010508856.5A CN111677181B (en) | 2020-06-06 | 2020-06-06 | Frame roof for building decoration and finishing engineering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111677181A CN111677181A (en) | 2020-09-18 |
| CN111677181B true CN111677181B (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010508856.5A Active CN111677181B (en) | 2020-06-06 | 2020-06-06 | Frame roof for building decoration and finishing engineering |
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| CN (1) | CN111677181B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622578B (en) * | 2021-08-24 | 2022-12-20 | 湖南金凤凰建材家居集成科技有限公司 | Gypsum perforation abatvoix convenient to installation |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB766315A (en) * | 1952-11-13 | 1957-01-23 | Charles Aquila Vincent Smith | Improvements in or relating to structural joints |
| CN2795323Y (en) * | 2005-06-13 | 2006-07-12 | 深圳市安杰净化设备有限公司 | Ceiling structure of cleaning room |
| CN102287024B (en) * | 2011-05-23 | 2013-04-03 | 湖州民普厨卫科技有限公司 | Integrated ceiling structure |
| JP5920715B2 (en) * | 2012-05-16 | 2016-05-18 | 理研軽金属工業株式会社 | Ceiling louver mounting structure |
| CN105003017A (en) * | 2015-08-06 | 2015-10-28 | 中核华泰建设有限公司 | General hoisting ceiling keel structure |
| CN205134562U (en) * | 2015-11-30 | 2016-04-06 | 湖南科技大学 | Built -up connection spare component of FRP member |
| CN105464277B (en) * | 2016-01-13 | 2017-12-01 | 沈阳建筑大学 | A kind of steel joist suspended ceiling fastener |
| CN205653948U (en) * | 2016-04-20 | 2016-10-19 | 北新集团建材股份有限公司 | A furred ceiling system |
| JP6530730B2 (en) * | 2016-07-21 | 2019-06-12 | 高久 徳永 | Hanger system for suspended ceiling |
| CN207405769U (en) * | 2017-10-18 | 2018-05-25 | 江苏宝迪建设工程有限公司 | The connection structure of curtain skeleton and the main girder steel of roofing |
| CN108643436A (en) * | 2018-03-23 | 2018-10-12 | 张日龙 | A kind of bending side convenient for disassembly and assembly is logical |
| CN208718199U (en) * | 2018-03-29 | 2019-04-09 | 广州英伦环境科技有限公司 | A kind of cleaning room module keel furred ceiling frame |
| CN208870258U (en) * | 2018-08-03 | 2019-05-17 | 重庆市设计院 | A kind of ceiling structure of assembled architecture decorative panel |
| CN209799140U (en) * | 2019-03-09 | 2019-12-17 | 北京华邑建设工程有限公司 | Mounting structure of office place ceiling |
| CN209780003U (en) * | 2019-03-20 | 2019-12-13 | 深圳广田集团股份有限公司 | fixing structure of reverse furred ceiling of big space grid structure |
| KR102021297B1 (en) * | 2019-03-27 | 2019-11-04 | 최광림 | Ceiling frame system |
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2020
- 2020-06-06 CN CN202010508856.5A patent/CN111677181B/en active Active
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