CN112343183A - Connection structure of assembled building wallboard and floor - Google Patents

Connection structure of assembled building wallboard and floor Download PDF

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Publication number
CN112343183A
CN112343183A CN202011261795.3A CN202011261795A CN112343183A CN 112343183 A CN112343183 A CN 112343183A CN 202011261795 A CN202011261795 A CN 202011261795A CN 112343183 A CN112343183 A CN 112343183A
Authority
CN
China
Prior art keywords
lateral wall
floor slab
backup pad
floor
fixedly connected
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
Application number
CN202011261795.3A
Other languages
Chinese (zh)
Inventor
王浦东
江清泉
言睿清
王香丽
周书棋
高波
宋勇丰
戴锦东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gold Mantis Fine Decoration Technology Suzhou Co Ltd
Original Assignee
Gold Mantis Fine Decoration Technology Suzhou Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gold Mantis Fine Decoration Technology Suzhou Co Ltd filed Critical Gold Mantis Fine Decoration Technology Suzhou Co Ltd
Priority to CN202011261795.3A priority Critical patent/CN112343183A/en
Publication of CN112343183A publication Critical patent/CN112343183A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/61Connections for building structures in general of slab-shaped building elements with each other
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14Conveying or assembling building elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/61Connections for building structures in general of slab-shaped building elements with each other
    • E04B1/6108Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together

Abstract

The invention belongs to the technical field of assembly type building wallboard installation, and discloses a connection structure of an assembly type building wallboard and a floor slab. According to the invention, through the mutual matching of the first support plate, the second support plate, the first connecting block, the threaded rod, the threaded cylinder and the mounting block, the threaded rod can be driven to move by utilizing the rotation of the threaded cylinder, the extending distance of the threaded rod is changed, so that the angle between the first support plate and the second support plate is changed, and further the angle between the building wallboard body and the floor slab is changed, so that when the wallboard body presents a certain angle, the floor slab body can be kept in a horizontal state to be assembled with the wallboard body, the operation is simple, the operation can be completed by one person, the manpower input is reduced, and the mounting efficiency of the floor slab is effectively improved.

Description

Connection structure of assembled building wallboard and floor
Technical Field
The invention belongs to the technical field of assembly type building wallboard installation, and particularly relates to a connecting structure of an assembly type building wallboard and a floor slab.
Background
The wall plate is used as bearing member and partition of room, it is the most common and economic structure form in residential building, the wall plate structure can be used in dwelling house, apartment, office building, school and other public buildings, the bearing wall of the wall plate structure can be made of brick, building block, prefabricated or cast-in-place concrete, the existent wall plate can be divided into three types according to the different used materials and construction methods, and can be made into mixed structure, large assembled plate structure and cast-in-place wall plate structure, and the existent assembled wall plate can be commercially produced, and has the advantages of high construction mechanization, short construction period, less field work, less wet operation and less influence by seasons.
Wherein, the in-process that current building wallboard and floor assembled, in order to guarantee joint strength, generally need utilize professional connection structure to fix floor and wallboard, however, current connection structure is when using, mostly can only fix to mutually perpendicular's wallboard and floor, when the wallboard appears certain bent angle because of the construction decoration needs, current connection structure is inconvenient to be used, need many people manual supplementary spacing re-fixing, manpower resources are wasted, the operation is complicated, the installation effectiveness of floor has been reduced.
Disclosure of Invention
The present invention is directed to a connecting structure of a wall panel and a floor slab of an assembly type building, so as to solve the problems of the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme: a connecting structure of an assembled building wallboard and a floor comprises a floor body and a building wallboard body for mounting the floor body, wherein a plurality of first supporting plates and second supporting plates which are mutually rotatably connected are arranged between the floor body and the building wallboard body, and the first supporting plates and the second supporting plates are respectively fixedly connected with the outer side walls of the floor body and the building wallboard body; a rotating mechanism for adjusting the angle is arranged between the first supporting plate and the second supporting plate, and the lower surface of the first supporting plate is fixedly connected with an indicating assembly for leveling; the floor body lateral wall is connected with the same installation curb plate through a plurality of anchor subassembly fixed connection, installation curb plate lateral wall is connected with floor body lower surface through tensile supporting mechanism.
Preferably, the first support plate and the second support plate are rotatably connected by a hinge.
Preferably, first backup pad and second backup pad all through many expansion bolts respectively with floor body and this external lateral wall fixed connection of building wallboard.
Preferably, slewing mechanism include with first backup pad lateral wall fixed connection's first connecting block, first connecting block lateral wall fixedly connected with threaded rod, threaded rod lateral wall screw has cup jointed a screw thread section of thick bamboo, the screw thread section of thick bamboo lateral wall rotates and is connected with the installation piece that is the T type setting, the installation piece is kept away from screw thread section of thick bamboo one end and is rotated and be connected with the second connecting block, second connecting block and second backup pad lateral wall fixed connection.
Preferably, indicate the subassembly include with first backup pad lateral wall fixed connection's angulometry scale plate, first backup pad lateral wall just is located angulometry scale plate front side rotation and is connected with the pilot lever, pilot lever bottom fixedly connected with collar.
Preferably, the anchor subassembly include with building wallboard body lateral wall fixed connection's anchor pole, anchor pole lateral wall cover is equipped with the gasket, the gasket outside is equipped with the fastening nut that the screw thread cup jointed on the anchor pole lateral wall, anchor pole tip fixedly connected with nut, installation curb plate and nut lateral wall fixed connection.
Preferably, the supporting mechanism includes the third connecting block with installation curb plate lateral wall fixed connection, the third connecting block lateral wall rotates and is connected with the dead lever, the dead lever is kept away from the spacing barrel casing of third connecting block one end fixedly connected with, spacing barrel casing inside wall sliding connection has the movable rod, the movable rod is kept away from dead lever one end and is rotated and be connected with the fourth connecting block, fourth connecting block lateral wall fixedly connected with props up the board, it passes through many expansion screw and floor body lateral wall fixed connection to prop up the board, the movable rod passes through locking bolt and spacing barrel casing lateral wall fixed connection.
Preferably, the outer side wall of the limiting cylinder sleeve is provided with a threaded hole matched with the locking bolt, and the locking bolt is positioned at one end of the limiting cylinder sleeve and is contacted with the outer side wall of the movable rod.
Preferably, it is a plurality of two of first backup pad are a set of, are located same two of a set of be equipped with many rigid connection strip between the first backup pad, rigid connection strip both ends are through a plurality of L type connecting pieces and correspond first backup pad lateral wall fixed connection.
The invention has the following beneficial effects:
1. according to the invention, through the mutual matching among the floor slab body, the building wallboard body, the first supporting plate, the second supporting plate, the first connecting block, the threaded rod, the threaded cylinder and the mounting block, the threaded rod can be driven to move by utilizing the rotation of the threaded cylinder, the extending distance of the threaded rod is changed, so that the angle between the first supporting plate and the second supporting plate is changed, and further the angle between the building wallboard body and the floor slab is changed, so that the floor slab body can be kept in a horizontal state and assembled with the floor slab body when the wallboard body presents a certain angle, the operation is simple, the operation can be finished by one person, the manpower input is reduced, and the mounting efficiency of the floor slab is.
2. According to the invention, through the mutual matching among the first supporting plate, the angle measuring scale plate, the indicating rod and the mounting ring, when the angle measuring device is used, the plumb line can be mounted on the mounting ring, and when the angle of the first supporting plate is adjusted, the angle indicated by the indicating rod is utilized, so that a worker can conveniently and visually know whether the first supporting plate is in a horizontal state, and the operation efficiency is further improved.
3. According to the invention, through the mutual matching among the anchoring component, the installation side plate, the fixed rod, the limiting cylinder sleeve, the movable rod and the jacking plate, the installation side plate can be stably installed on the building wallboard body by using the anchoring component, the position of the jacking plate can be changed by using the movement of the movable rod, and the position of the movable rod is fixed by using the locking bolt after the jacking plate and the floor slab body are fixed, so that the floor slab body can be further supported, and the stability of the floor slab body is ensured.
4. According to the invention, through the mutual matching between the rigid connecting strips and the L-shaped connecting pieces, the rigid connecting pieces are utilized to ensure that two first supporting plates in the same group are stably connected, so that the supporting effect of the first supporting plates is effectively improved, and the first supporting plates are more stable.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection structure of the rotating mechanism with the first support plate and the second support plate according to the present invention;
FIG. 3 is a schematic structural view of a rotating mechanism and an indicating assembly according to the present invention;
FIG. 4 is a schematic view of the connection structure of the support mechanism and the building wall panel body according to the present invention;
FIG. 5 is a schematic view of the anchor assembly of the present invention;
fig. 6 is a schematic view of the connection structure of the first support plate and the rigid connecting strip according to the present invention.
In the figure: 1. a floor slab body; 2. a building panel body; 3. a first support plate; 4. a second support plate; 5. a rotating mechanism; 501. a first connection block; 502. a threaded rod; 503. a threaded barrel; 504. mounting blocks; 505. a second connecting block; 6. an indicating component; 601. an angle measuring scale plate; 602. an indication lever; 603. a mounting ring; 7. an anchor assembly; 701. an anchoring rod; 702. a gasket; 703. fastening a nut; 704. a nut; 8. installing a side plate; 9. a support mechanism; 901. a third connecting block; 902. fixing the rod; 903. a limiting cylinder sleeve; 904. a movable rod; 905. a fourth connecting block; 906. a top bracing plate; 907. an expansion screw; 908. locking the bolt; 10. a hinge; 11. an expansion bolt; 12. a rigid connecting strip; 13. an L-shaped connecting piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 6, in the embodiment of the present invention, an assembly type connecting structure of a building wallboard and a floor slab includes a floor slab body 1 and a building wallboard body 2 for installing the floor slab body 1, a plurality of first supporting plates 3 and second supporting plates 4 which are rotatably connected with each other are arranged between the floor slab body 1 and the building wallboard body 2, and the first supporting plates 3 and the second supporting plates 4 are respectively fixedly connected with outer side walls of the floor slab body 1 and the building wallboard body 2; a rotating mechanism 5 for angle adjustment is arranged between the first supporting plate 3 and the second supporting plate 4, and an indicating assembly 6 for leveling is fixedly connected to the lower surface of the first supporting plate 3; the same installation curb plate 8 of 1 lateral wall of floor body 7 fixedly connected with through a plurality of anchor subassemblies, 8 lateral walls of installation curb plate are connected with 1 lower surface of floor body through tensile supporting mechanism 9.
Wherein the first support plate 3 and the second support plate 4 are rotatably connected by a hinge 10, which facilitates the storage of the first support plate 3 and the second support plate 4 before installation.
Wherein, first backup pad 3 and second backup pad 4 all through many expansion bolts 11 respectively with floor body 1 and 2 lateral walls fixed connection of building wallboard body, have brought the facility for the installation of first backup pad 3 and second backup pad 4.
Wherein, slewing mechanism 5 includes the first connecting block 501 with 3 lateral wall fixed connection of first backup pad, the lateral wall fixedly connected with threaded rod 502 of first connecting block 501, threaded rod 502 lateral wall screw sleeve has threaded cylinder 503, threaded cylinder 503 lateral wall rotates and is connected with the installation piece 504 that is the T type setting, installation piece 504 is kept away from threaded cylinder 503 one end and is rotated and be connected with second connecting block 505, second connecting block 505 and 4 lateral wall fixed connection of second backup pad, can change the distance that threaded rod 502 stretches out when threaded cylinder 503 rotates, thereby make and take place relative rotation between first backup pad 3 and the second backup pad 4, change the angle between first backup pad 3 and the second backup pad 4.
Wherein, instruct subassembly 6 to include the angulometry scale plate 601 with 3 lateral walls fixed connection of first backup pad, 3 lateral walls of first backup pad just are located angulometry scale plate 601 front side rotation and are connected with instruction pole 602, instruction pole 602 bottom fixedly connected with collar 603, collar 603 is used for the installation of plumb line, the plumb line remains vertical downwards all the time under the action of gravity to can drive instruction pole 602 and instruct the straightness that hangs down on angulometry scale plate 601, whether the staff of being convenient for judges first backup pad 3 level directly perceived.
Wherein, anchor assembly 7 includes with building wallboard body 2 lateral wall fixed connection's anchor rod 701, anchor rod 701 lateral wall cover is equipped with gasket 702, the gasket 702 outside is equipped with the fastening nut 703 of screw thread cup joint on anchor rod 701 lateral wall, anchor rod 701 tip fixed connection has nut 704, installation curb plate 8 and nut 704 lateral wall fixed connection, be convenient for like this fix installation curb plate 8 on building wallboard body 2, utilize fastening nut 703 and gasket 702 cooperation, can make anchor rod 701 more firm with being connected of building wallboard body 2.
Wherein, the supporting mechanism 9 comprises a third connecting block 901 fixedly connected with the outer side wall of the installation side plate 8, the outer side wall of the third connecting block 901 is rotatably connected with a fixed rod 902, one end of the fixed rod 902 far away from the third connecting block 901 is fixedly connected with a limiting cylinder sleeve 903, the inner side wall of the limiting cylinder sleeve 903 is slidably connected with a movable rod 904, one end of the movable rod 904 far away from the fixed rod 902 is rotatably connected with a fourth connecting block 905, the outer side wall of the fourth connecting block 905 is fixedly connected with a top supporting plate 906, the top supporting plate 906 is fixedly connected with the outer side wall of the floor slab body 1 through a plurality of expansion screws 907, the movable rod 904 is fixedly connected with the outer side wall of the limiting, after the top bracing plate 906 is fixed with the floor slab body 1, the position of the movable rod 904 is fixed by the locking bolt 908, can further support floor body 1 like this, guarantee floor body 1's stability.
The outer side wall of the limiting cylinder sleeve 903 is provided with a threaded hole matched with the locking bolt 908, and the locking bolt 908 is located at one end of the limiting cylinder sleeve 903 and contacts with the outer side wall of the movable rod 904, so that the position of the movable rod 904 can be fixed in time after adjustment is finished.
Wherein, a plurality of first backup pads 3 are two liang a set of, be located to be equipped with many rigid connection strip 12 between two first backup pads 3 of same set of, rigid connection strip 12 both ends are through a plurality of L type connecting pieces 13 and correspond 3 lateral wall fixed connection of first backup pad, utilize rigid connection strip 12 to make with two first backup pads 3 of a set of to connect stably, the supporting effect of first backup pad 3 has effectively been promoted, make first backup pad 3 more stable, wherein L type connecting piece 13 mutually perpendicular's both sides all are connected through screw and first backup pad 3 and rigid connection strip 12 that corresponds.
The working principle and the using process are as follows:
when non-perpendicularly between floor body 1 and the building wallboard body 2, at first utilize expansion bolts 11 to fix second backup pad 4 on building wallboard body 2, hang the plumb line to collar 603 on, then rotate threaded cylinder 503, threaded rod 502 outwards shifts out and drives first backup pad 3 and remove, when the stable instruction of instruction pole 602 is at ninety degrees, first backup pad 3 is horizontal, move floor body 1 to first backup pad 3 top, then utilize expansion bolts 11 to fix first backup pad 3 with floor body 1, repeat above step, accomplish the fixed of each first backup pad 3 and floor body 1, then utilize L type connecting piece 13 to fix rigid connection strip 12 with two first backup pads 3 of same group, make first backup pad 3 more stable.
Finally, the anchoring rods 701 are driven into the building wallboard body 2, corresponding fastening nuts 703 are rotated to tightly support the gaskets 702 against the building wallboard body 2, then the mounting side plates 8 are mounted on the nuts 704 in a welding or screw fixing mode, the top supporting plates 906 are moved until the upper surfaces of the top supporting plates 906 are in contact with the lower surface of the floor slab body 1, the top supporting plates 906 are fixed on the floor slab body 1 through expansion screws 907, when the top supporting plates 906 move, the movable rods 904 move along the limiting cylinder sleeves 903, after the positions of the top supporting plates 906 are fixed, the locking bolts 908 are rotated, the movable rods 904 are tightly supported by the locking bolts 908, the movable rods 904 are prevented from moving randomly, and connection between the building wallboard body 2 and the floor slab body 1 is completed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a connection structure of assembled building wallboard and floor, includes floor body (1) and building wallboard body (2) that are used for installing floor body (1), its characterized in that: a plurality of first supporting plates (3) and second supporting plates (4) which are mutually rotatably connected are arranged between the floor slab body (1) and the building wallboard body (2), and the first supporting plates (3) and the second supporting plates (4) are respectively fixedly connected with the outer side walls of the floor slab body (1) and the building wallboard body (2);
a rotating mechanism (5) for adjusting the angle is arranged between the first supporting plate (3) and the second supporting plate (4), and an indicating assembly (6) for leveling is fixedly connected to the lower surface of the first supporting plate (3);
floor body (1) lateral wall is through the same installation curb plate (8) of a plurality of anchor subassembly (7) fixedly connected with, installation curb plate (8) lateral wall is connected with floor body (1) lower surface through can stretching supporting mechanism (9).
2. A connecting structure of a fabricated building wall panel and a floor slab as claimed in claim 1, wherein: the first supporting plate (3) and the second supporting plate (4) are rotatably connected through a hinge (10).
3. A connecting structure of a fabricated building wall panel and a floor slab as claimed in claim 1, wherein: first backup pad (3) and second backup pad (4) all through many expansion bolts (11) respectively with floor body (1) and building wallboard body (2) lateral wall fixed connection.
4. A connecting structure of a fabricated building wall panel and a floor slab as claimed in claim 1, wherein: slewing mechanism (5) include with first backup pad (3) lateral wall fixed connection's first connecting block (501), first connecting block (501) lateral wall fixed connection threaded rod (502), threaded rod (502) lateral wall screw thread cover has threaded cylinder (503), threaded cylinder (503) lateral wall rotates and is connected with installation piece (504) that are the setting of T type, installation piece (504) are kept away from threaded cylinder (503) one end and are rotated and be connected with second connecting block (505), second connecting block (505) and second backup pad (4) lateral wall fixed connection.
5. A connecting structure of a fabricated building wall panel and a floor slab as claimed in claim 1, wherein: indicate subassembly (6) including with first backup pad (3) lateral wall fixed connection's angulometry scale plate (601), first backup pad (3) lateral wall just is located angulometry scale plate (601) front side rotation and is connected with indicator pole (602), indicator pole (602) bottom fixedly connected with collar (603).
6. A connecting structure of a fabricated building wall panel and a floor slab as claimed in claim 1, wherein: anchor subassembly (7) include with building wallboard body (2) lateral wall fixed connection's anchor pole (701), anchor pole (701) lateral wall cover is equipped with gasket (702), gasket (702) outside is equipped with fastening nut (703) that the screw thread cup jointed on anchor pole (701) lateral wall, anchor pole (701) tip fixedly connected with nut (704), installation curb plate (8) and nut (704) lateral wall fixed connection.
7. A connecting structure of a fabricated building wall panel and a floor slab as claimed in claim 1, wherein: the supporting mechanism (9) comprises a third connecting block (901) fixedly connected with the outer side wall of the mounting side plate (8), the outer side wall of the third connecting block (901) is rotatably connected with a fixing rod (902), one end of the fixing rod (902) far away from the third connecting block (901) is fixedly connected with a limiting cylinder sleeve (903), the inner side wall of the limiting cylinder sleeve (903) is slidably connected with a movable rod (904), one end of the movable rod (904) far away from the fixing rod (902) is rotatably connected with a fourth connecting block (905), the outer side wall of the fourth connecting block (905) is fixedly connected with a supporting plate (906), the supporting plate (906) is fixedly connected with the outer side wall of the floor slab body (1) through a plurality of expansion screws (907), and the movable rod (904) is fixedly connected with the outer side wall of the limiting cylinder sleeve.
8. A connecting structure of a fabricated building wall panel and a floor slab as claimed in claim 7, wherein: the outer side wall of the limiting cylinder sleeve (903) is provided with a threaded hole matched with a locking bolt (908), and the locking bolt (908) is located at one end of the limiting cylinder sleeve (903) and is in contact with the outer side wall of the movable rod (904).
9. A connecting structure of a fabricated building wall panel and a floor slab as claimed in claim 1, wherein: a plurality of first backup pad (3) two liang are a set of, are located same two of a set of be equipped with many rigid connection strip (12) between first backup pad (3), rigid connection strip (12) both ends are through a plurality of L type connecting pieces (13) and correspond first backup pad (3) lateral wall fixed connection.
CN202011261795.3A 2020-11-12 2020-11-12 Connection structure of assembled building wallboard and floor Pending CN112343183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011261795.3A CN112343183A (en) 2020-11-12 2020-11-12 Connection structure of assembled building wallboard and floor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011261795.3A CN112343183A (en) 2020-11-12 2020-11-12 Connection structure of assembled building wallboard and floor

Publications (1)

Publication Number Publication Date
CN112343183A true CN112343183A (en) 2021-02-09

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Application Number Title Priority Date Filing Date
CN202011261795.3A Pending CN112343183A (en) 2020-11-12 2020-11-12 Connection structure of assembled building wallboard and floor

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113062477A (en) * 2021-03-30 2021-07-02 谭复元 Effectual building materials board keeps warm and installation connection structure thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113062477A (en) * 2021-03-30 2021-07-02 谭复元 Effectual building materials board keeps warm and installation connection structure thereof

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