CN110107000B - Light metal framework of assembled building partition wall - Google Patents

Light metal framework of assembled building partition wall Download PDF

Info

Publication number
CN110107000B
CN110107000B CN201910422628.3A CN201910422628A CN110107000B CN 110107000 B CN110107000 B CN 110107000B CN 201910422628 A CN201910422628 A CN 201910422628A CN 110107000 B CN110107000 B CN 110107000B
Authority
CN
China
Prior art keywords
partition wall
block
clamping
fixing
wall
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.)
Active
Application number
CN201910422628.3A
Other languages
Chinese (zh)
Other versions
CN110107000A (en
Inventor
刘磊
杜书影
胡峰
黄勤
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.)
Fuyang Jinggong Industrial Technology Co., Ltd
Original Assignee
Fuyang Jinggong Industrial Technology 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 Fuyang Jinggong Industrial Technology Co Ltd filed Critical Fuyang Jinggong Industrial Technology Co Ltd
Priority to CN201910422628.3A priority Critical patent/CN110107000B/en
Publication of CN110107000A publication Critical patent/CN110107000A/en
Application granted granted Critical
Publication of CN110107000B publication Critical patent/CN110107000B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/7407Removable non-load-bearing partitions; Partitions with a free upper edge assembled using frames with infill panels or coverings only; made-up of panels and a support structure incorporating posts
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/76Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Load-Bearing And Curtain Walls (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The invention provides an assembled light metal framework for building partition walls, which comprises a transverse outer frame, a longitudinal outer frame and a fixing device, wherein the transverse outer frame is fixed on the longitudinal outer frame; the invention can solve the problems that the framework built by the existing bolt and nut is easy to cause bolt and nut screw sliding after repeated use for many times, so that the disassembly is difficult, the secondary use is influenced, and the material waste is caused; the assembly type building partition wall has the advantages that the assembly type building partition wall is simple to install and disassemble, firm in fixing and not prone to shaking, the installed partition wall is convenient to change transversely in the original position, and the like.

Description

Light metal framework of assembled building partition wall
Technical Field
The invention relates to the technical field of constructional engineering, in particular to an assembled light metal framework for a building partition wall.
Background
At present, the offices mostly adopt fabricated buildings to partition indoors, so that the assembled buildings are convenient to mount and dismount on one hand, and the damage to the buildings is small on the other hand, the indoor integral structure is not required to be damaged; and the assembled building partition wall in current office changes probability greatly, can carry out lateral shifting to original partition wall usually, changes original door and window position, but the same direction position change of current partition wall needs to dismantle the installation again, has the engineering volume big.
Therefore, the invention provides the light metal framework of the assembly type building partition wall, which aims to facilitate the assembly and disassembly of the existing framework and facilitate the movement of the partition wall on the basis of the original position.
Disclosure of Invention
In order to solve the problems, the invention provides an assembled light metal framework for a building partition wall, which can solve the problems that the framework built by the existing bolt and nut is easy to cause bolt and nut screw sliding after repeated use for many times, so that the disassembly is difficult, the secondary use is influenced, and the material waste is caused; the assembly type building partition wall has the advantages that the assembly type building partition wall is simple to install and disassemble, firm in fixing and not prone to shaking, the installed partition wall is convenient to change transversely in the original position, and the like.
In order to achieve the purpose, the invention adopts the following technical scheme that the light metal framework of the assembled building partition wall comprises a transverse outer frame, a longitudinal outer frame and a fixing device; the number of the transverse outer frames is two, the left end and the right end of each transverse outer frame are respectively connected with the longitudinal outer frame, a fixing device is arranged in a frame structure built by the transverse outer frames and the longitudinal outer frames, a sliding groove is formed in the inner wall of each transverse outer frame, and rolling wheels are uniformly arranged in the sliding groove; wherein:
the fixing device comprises a fixing rod, a right-angle steel block, a fixing module, a light steel framework, a buckle and a partition wall module; the number of the fixing rods is four, the four fixing rods are spliced into a frame structure through right-angle steel blocks, clamping grooves are uniformly formed in the inner walls of the fixing rods, fixing modules are arranged in the clamping grooves, the light steel frameworks are connected through buckles, and two ends of each light steel framework are arranged in the clamping grooves and fixed through the fixing modules; the light steel frameworks are orderly and alternately arranged; and the partition wall module is arranged on the light steel framework.
The partition wall module comprises a square rod, a partition wall template, a clamping seat, a clamping block and an auxiliary block; the square rod is clamped and fixed on the light steel framework in parallel through bolts, clamping seats are uniformly arranged on the outer wall of the square rod, grooves are symmetrically formed in the inner wall of each clamping seat, the partition wall template is installed in each clamping seat through a clamping block, an auxiliary groove is formed in the outer wall of one side of the partition wall template, an auxiliary block is arranged on the outer wall of the other side of the partition wall template, and the adjacent partition wall templates are fixed through the auxiliary blocks; the fixing device who sets up is through installing the fixing device's of being convenient for monolithic shifting in the spout of horizontal frame, very big having made things convenient for the building partition wall to carry out lateral shifting on original position basis.
The fixing module comprises fixing angle blocks, compression springs, U-shaped top extension blocks, top extension springs and pressing columns, the fixing angle blocks are symmetrically installed on the inner wall of the clamping groove through the compression springs, the pressing columns are installed on fixing rods at the lower ends of the clamping groove in a sliding fit mode, the top extension springs are sleeved on the outer walls of the pressing columns, and the U-shaped top extension blocks are connected to the upper ends of the pressing columns; the outer wall of the upper end of the fixed corner block is provided with an arc-shaped slope structure; the light steel framework is convenient to connect by the aid of the arranged fixing modules, the fixing is firm, the light steel framework can be conveniently detached by pulling the pressing column when detached, the phenomenon that screw threads are generated due to connection of bolts and nuts is avoided, and the service life of the light steel framework is prolonged.
Preferably, the clamping blocks comprise fixed springs and clamping balls, the fixed springs are symmetrically arranged at the lower end of the partition wall template, and the other ends of the fixed springs are connected with the clamping balls; the fixture block that sets up is convenient for install the partition wall template, need not to use the bolt fastening partition wall template.
Preferably, the auxiliary block comprises an auxiliary spring and an embedded block, the auxiliary spring is mounted on the side wall of one end of the partition wall formwork, the embedded block is mounted at the other end of the auxiliary spring, and the upper end of the embedded block is of an arc structure; thereby the auxiliary block that sets up can promote the connection between the adjacent partition wall template through with mutual buckle between the adjacent partition wall template, and then guarantees the installation stability of partition wall template.
Preferably, the inner wall sides of the two ends of the U-shaped top extension block are arranged into inclined wedge-shaped structures; the U-shaped top extension block of the wedge-shaped structure is convenient to be matched with the fixed angle block, flexibly controls the extension of the fixed angle block, and further controls the disassembly and the installation of the light steel framework.
Preferably, the middle part of the light steel framework is of a hollow structure, the light steel framework adopting the hollow structure in the middle part saves steel materials and manufacturing cost on one hand, and on the other hand, the self weight of the light steel framework can be reduced, and the bearing load of the wall body is reduced.
The invention has the beneficial effects that:
the invention has the advantages that the installation and the disassembly are simple, the fixation is firm, the shaking is not easy to generate, the installed partition wall is convenient to change transversely on the original position, and the like;
the fixing device is arranged in the sliding groove of the transverse outer frame, so that the fixing device can move integrally, and the transverse movement of the building partition wall on the basis of the original position is greatly facilitated;
the fixing module is convenient to connect the light steel framework and is fixed firmly, and the light steel framework can be disassembled conveniently by pulling the pressing column when being disassembled, so that the phenomenon of thread slipping caused by connection of bolts and nuts is avoided, and the service life of the light steel framework is prolonged;
the auxiliary block provided by the invention can be mutually buckled with the adjacent partition wall formworks to promote the connection between the adjacent partition wall formworks, so that the installation stability of the partition wall formworks is ensured;
and fifthly, the light steel framework with the hollow structure in the middle part is adopted, so that on one hand, steel is saved, the manufacturing cost is saved, on the other hand, the self weight of the light steel framework can be reduced, and the bearing load of the wall body is reduced.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of a first configuration of the present invention;
FIG. 2 is a second schematic structural view of the present invention;
FIG. 3 is a first cross-sectional view of the present invention;
fig. 4 is a second cross-sectional view of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in fig. 1 to 4, a fabricated light metal framework for partition walls of a building comprises a transverse outer frame 1, a longitudinal outer frame 2 and a fixing device 3; the number of the transverse outer frames 1 is two, the left end and the right end of each transverse outer frame 1 are respectively connected with the longitudinal outer frame 2, a fixing device 3 is arranged in a frame structure built by the transverse outer frames 1 and the longitudinal outer frames 2, a sliding groove is formed in the inner wall of each transverse outer frame 1, and rolling wheels are uniformly arranged in the sliding groove; wherein:
the fixing device 3 comprises a fixing rod 31, a right-angle steel block 32, a fixing module 33, a light steel framework 34, a buckle 35 and a partition wall module 36; the number of the fixing rods 31 is four, the four fixing rods 31 are spliced into a frame structure through right-angle steel blocks 32, clamping grooves are uniformly formed in the inner walls of the fixing rods 31, fixing modules 33 are arranged in the clamping grooves, the light steel frameworks 34 are connected through buckles 35, and two ends of each light steel framework 34 are arranged in the clamping grooves and fixed through the fixing modules 33; the light steel frameworks 34 are orderly and alternately arranged; the partition wall module 36 is mounted on the light steel framework 34.
The partition wall module 36 comprises a square rod 361, a partition wall template 362, a clamping seat 363, a clamping block 364 and an auxiliary block 365; the square rod 361 is clamped and fixed on the light steel framework 34 in parallel through bolts, clamping seats 363 are uniformly arranged on the outer wall of the square rod 361, grooves are symmetrically arranged on the inner wall of each clamping seat 363, the partition wall template 362 is installed in each clamping seat 363 through clamping blocks 364, an auxiliary groove is arranged on the outer wall of one side of the partition wall template 362, an auxiliary block 365 is arranged on the outer wall of the other side of the partition wall template 362, and the adjacent partition wall templates 362 are fixed through the auxiliary blocks 365; the fixing device 3 that sets up is through installing the overall movement of the fixing device 3 of being convenient for in the spout of horizontal frame 1, very big having made things convenient for the building partition wall to carry out lateral shifting on original position basis.
The fixed module 33 comprises fixed angle blocks 331, compression springs 332, U-shaped top extension blocks 333, top extension springs 334 and pressing columns 335, the fixed angle blocks 331 are symmetrically installed on the inner wall of the clamping groove through the compression springs 332, the pressing columns 335 are installed on the fixed rod 31 at the lower end of the clamping groove in a sliding fit mode, the top extension springs 334 are sleeved on the outer wall of the pressing columns 335, and the U-shaped top extension blocks 333 are connected to the upper ends of the pressing columns 335; the outer wall of the upper end of the fixed corner block 331 is of an arc-shaped slope structure; the fixed module 33 that sets up is convenient for connect light steel skeleton 34, and is fixed firm simultaneously to and press post 335 through the pulling during dismantlement light steel skeleton 34 and can convenient to detach, avoided using bolt and nut to connect and produce the phenomenon of smooth silk, improved light steel skeleton 34's life.
Preferably, the fixture block 364 comprises a fixed spring 3641 and a clamping ball 3642, the fixed spring 3641 is symmetrically arranged at the lower end of the partition wall template 362, and the other end of the fixed spring 3641 is connected with the clamping ball 3642; the provision of the latches 364 facilitates the installation of the partition wall form 362 without the need to fix the partition wall form 362 using bolts.
Preferably, the auxiliary block 365 comprises an auxiliary spring 3651 and an embedding block 3652, the auxiliary spring 3651 is mounted on a side wall of one end of the partition wall template 362, the embedding block 3652 is mounted at the other end of the auxiliary spring 3651, and the upper end of the embedding block 3652 is of an arc structure; the auxiliary block 365 may be fastened to the adjacent partition formworks 362 to facilitate the connection between the adjacent partition formworks 362, thereby ensuring the installation stability of the partition formworks 362.
Preferably, the inner wall sides of the two ends of the U-shaped top extension block 333 are arranged as an inclined wedge-shaped structure; the U-shaped top extension block 333 with the wedge-shaped structure is convenient to be matched with the fixed corner block 331, the extension of the fixed corner block 331 is flexibly controlled, and the light steel framework 34 is further controlled to be detached and installed.
Preferably, the middle part of the light steel framework 34 is of a hollow structure, the light steel framework 34 adopting the hollow structure in the middle part saves steel materials and manufacturing cost on one hand, and on the other hand, the self weight of the light steel framework 34 can be reduced, and the bearing load of the wall body is reduced.
During installation, the transverse outer frame 1 and the longitudinal outer frame 2 are spliced into a frame structure and fixed at a proper position on a wall, and then the frame structure formed by splicing the fixed rods 31 is placed in the frame structure formed by splicing the transverse outer frame 1 and the longitudinal outer frame 2 through the straight angle steel blocks 32, and one end of the frame structure is fixed; and then, fixing the light steel framework 34 in the clamping groove on the fixing rod 31, finally installing the square rod 361 through bolts, and clamping the partition wall formworks 362 on the square rod 361 and ensuring that the partition wall formworks 362 are mutually clamped.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. An assembled light metal framework for building partition walls comprises a transverse outer frame (1), a longitudinal outer frame (2) and a fixing device (3); the method is characterized in that: the number of the transverse outer frames (1) is two, the left end and the right end of each transverse outer frame (1) are respectively connected with the longitudinal outer frame (2), a fixing device (3) is arranged in a frame structure built by the transverse outer frames (1) and the longitudinal outer frames (2), a sliding groove is formed in the inner wall of each transverse outer frame (1), and rolling wheels are uniformly arranged in the sliding groove; wherein:
the fixing device (3) comprises a fixing rod (31), a right-angle steel block (32), a fixing module (33), a light steel framework (34), a buckle (35) and a partition wall module (36); the number of the fixing rods (31) is four, the four fixing rods (31) are spliced into a frame structure through right-angle steel blocks (32), clamping grooves are uniformly formed in the inner walls of the fixing rods (31), fixing modules (33) are arranged in the clamping grooves, the light steel frameworks (34) are connected through buckles (35), and two ends of each light steel framework (34) are arranged in the clamping grooves and fixed through the fixing modules (33); the light steel frameworks (34) are orderly and alternately arranged; the partition wall module (36) is arranged on the light steel framework (34);
the partition wall module (36) comprises a square rod (361), a partition wall template (362), a clamping seat (363), a clamping block (364) and an auxiliary block (365); the square rod (361) is fixed on a light steel framework (34) in a parallel clamping mode through bolts, clamping seats (363) are evenly arranged on the outer wall of the square rod (361), grooves are symmetrically formed in the inner wall of each clamping seat (363), partition wall templates (362) are installed in the clamping seats (363) through clamping blocks (364), auxiliary grooves are formed in the outer wall of one side of each partition wall template (362), auxiliary blocks (365) are arranged on the outer wall of the other side of each partition wall template (362), and the adjacent partition wall templates (362) are fixed through the auxiliary blocks (365).
2. The fabricated building partition wall light metal framework of claim 1, wherein: the fixing module (33) comprises a fixing corner block (331), a compression spring (332), a U-shaped top extension block (333), a top extension spring (334) and a pressing column (335), wherein the fixing corner block (331) is symmetrically arranged on the inner wall of the clamping groove through the compression spring (332), the pressing column (335) is arranged on a fixing rod (31) at the lower end of the clamping groove in a sliding fit mode, the top extension spring (334) is sleeved on the outer wall of the pressing column (335), and the upper end of the pressing column (335) is connected with the U-shaped top extension block (333); the outer wall of the upper end of the fixed corner block (331) is of an arc-shaped slope structure.
3. The fabricated building partition wall light metal framework of claim 1, wherein: the fixture block (364) comprises a fixed spring (3641) and a clamping ball (3642), the fixed spring (3641) is symmetrically arranged at the lower end of the partition wall template (362), and the other end of the fixed spring (3641) is connected with the clamping ball (3642).
4. The fabricated building partition wall light metal framework of claim 1, wherein: the auxiliary block (365) comprises an auxiliary spring (3651) and an embedding block (3652), the auxiliary spring (3651) is installed on the side wall of one end of the partition wall template (362), the embedding block (3652) is installed at the other end of the auxiliary spring (3651), and the upper end of the embedding block (3652) is of an arc-shaped structure.
5. The fabricated building partition wall light metal framework of claim 2, wherein: the inner wall sides of two ends of the U-shaped top extension block (333) are arranged into inclined wedge-shaped structures.
6. The fabricated building partition wall light metal framework of claim 1, wherein: the middle part of the light steel framework (34) is of a hollow structure.
CN201910422628.3A 2019-05-21 2019-05-21 Light metal framework of assembled building partition wall Active CN110107000B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910422628.3A CN110107000B (en) 2019-05-21 2019-05-21 Light metal framework of assembled building partition wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910422628.3A CN110107000B (en) 2019-05-21 2019-05-21 Light metal framework of assembled building partition wall

Publications (2)

Publication Number Publication Date
CN110107000A CN110107000A (en) 2019-08-09
CN110107000B true CN110107000B (en) 2020-10-30

Family

ID=67491391

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910422628.3A Active CN110107000B (en) 2019-05-21 2019-05-21 Light metal framework of assembled building partition wall

Country Status (1)

Country Link
CN (1) CN110107000B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110453806B (en) * 2019-08-23 2021-06-01 夏勇 Building interior wall convenient to open blind hole
CN111794526B (en) * 2020-07-24 2021-12-07 浙江中装建筑装饰有限公司 Ceiling pinch plate installation method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101370380B1 (en) * 2013-07-29 2014-03-05 주식회사 오피스안건사 Functionality partition
CN104805955A (en) * 2015-04-14 2015-07-29 庄学阳 Wall panel and construction method thereof
CN207846769U (en) * 2018-01-08 2018-09-11 天津达因建材有限公司 Assembling type partition wall
CN208347099U (en) * 2018-05-07 2019-01-08 江西倍耐格建筑材料有限公司 A kind of combined type and the good green lightgage steel joist construction material of soundproof effect
CN208533779U (en) * 2018-06-25 2019-02-22 江苏华欣装饰集团有限公司 A kind of assembled light steel keel partition

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101370380B1 (en) * 2013-07-29 2014-03-05 주식회사 오피스안건사 Functionality partition
CN104805955A (en) * 2015-04-14 2015-07-29 庄学阳 Wall panel and construction method thereof
CN207846769U (en) * 2018-01-08 2018-09-11 天津达因建材有限公司 Assembling type partition wall
CN208347099U (en) * 2018-05-07 2019-01-08 江西倍耐格建筑材料有限公司 A kind of combined type and the good green lightgage steel joist construction material of soundproof effect
CN208533779U (en) * 2018-06-25 2019-02-22 江苏华欣装饰集团有限公司 A kind of assembled light steel keel partition

Also Published As

Publication number Publication date
CN110107000A (en) 2019-08-09

Similar Documents

Publication Publication Date Title
CN110107000B (en) Light metal framework of assembled building partition wall
CN103422663B (en) Attached lift scaffold
CN110397304B (en) Building wall reinforcing apparatus
CN108222545B (en) Precast floor plank strutting arrangement
CN113250366A (en) Reinforced steel bar truss floor bearing plate
CN110630016A (en) Adjustable building die carrier
CN211037889U (en) Supporting device is built to assembly type construction wallboard
CN211007049U (en) Assembly type middle layer beam column connecting piece and assembly type middle layer beam column mounting structure
CN216766839U (en) Adjustable positioning tool used in installation process of concrete prefabricated wall panel
KR102455356B1 (en) Anchor bolt installation device for solar panel installation
CN107386497B (en) Sound-insulation heat-preservation multi-connection assembled partition wall system
CN213269072U (en) Support column for prefabricated building
CN214194966U (en) Light gauge steel quick connect device
CN111910878A (en) Novel floor keel system
CN211548768U (en) A reinforcing apparatus for building engineering frame post template
CN210827848U (en) Assembly type structure reinforcing assembly and assembly type structure
KR200387968Y1 (en) The fabricated structure to control it's height
CN219411911U (en) Adjustable net frame assembling support jig frame
KR100605063B1 (en) The fabricated structure to control it's height
CN220539109U (en) Reinforcing structure of assembled overhead ground
CN219638277U (en) Light building structure
CN220184719U (en) External prestress reinforcement structure of existing building frame column
CN221298306U (en) Precast reinforced concrete shear wall
CN212271594U (en) Shear force wall reinforced structure
CN210105396U (en) A wallboard section bar mounting structure for removing toilet

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Liu Lei

Inventor after: Du Shuying

Inventor after: Hu Feng

Inventor after: Huang Qin

Inventor before: Du Shuying

Inventor before: Hu Feng

Inventor before: Huang Qin

TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20201010

Address after: 236000 east side of zhou23 road and north side of yingsan Road, economic development zone, Yingzhou District, Fuyang City, Anhui Province

Applicant after: Fuyang Jinggong Industrial Technology Co., Ltd

Address before: 230601 No. 7699 Flourishing Avenue, Hefei Economic and Technological Development Zone, Anhui General Institute of Architectural Design and Research

Applicant before: Du Shuying

GR01 Patent grant
GR01 Patent grant