CN212026808U - Aluminum veneer convenient to splice for suspended ceiling - Google Patents

Aluminum veneer convenient to splice for suspended ceiling Download PDF

Info

Publication number
CN212026808U
CN212026808U CN202020246182.1U CN202020246182U CN212026808U CN 212026808 U CN212026808 U CN 212026808U CN 202020246182 U CN202020246182 U CN 202020246182U CN 212026808 U CN212026808 U CN 212026808U
Authority
CN
China
Prior art keywords
positioning
aluminum
splice
veneer
suspended ceiling
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
CN202020246182.1U
Other languages
Chinese (zh)
Inventor
张建伟
张建彬
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.)
Tianjin Huatong Aluminum Industry Co ltd
Original Assignee
Tianjin Huatong Aluminum Industry 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 Tianjin Huatong Aluminum Industry Co ltd filed Critical Tianjin Huatong Aluminum Industry Co ltd
Priority to CN202020246182.1U priority Critical patent/CN212026808U/en
Application granted granted Critical
Publication of CN212026808U publication Critical patent/CN212026808U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

The utility model provides a furred ceiling is with aluminium veneer of concatenation of being convenient for, including aluminium veneer body, locating piece and constant head tank, on four group's lateral walls of aluminium veneer body, wherein set up the locating piece on two sets of corresponding lateral walls, set up the constant head tank on two sets of lateral walls in addition, the degree of depth of constant head tank is less than the thickness of aluminium veneer body, and when locating piece in the adjacent aluminium veneer body was inserted and is located the constant head tank, both were clearance fit, the utility model discloses simple structure, it is convenient to install, has reduced constructor's the operation degree of difficulty, and the cooperation of locating piece and constant head tank makes the concatenation department between the adjacent aluminium veneer more firm, guarantees its leakproofness, and then guarantees the installation quality of furred ceiling.

Description

Aluminum veneer convenient to splice for suspended ceiling
Technical Field
The utility model relates to an aluminium veneer technical field for the building especially relates to a furred ceiling is with aluminium veneer of being convenient for concatenation.
Background
The aluminum veneer is a common aluminum alloy unit plate, and is widely applied to the architectural decoration fields of suspended ceilings, column-wrapped beams, partition walls, curtain wall partition walls and the like, particularly in the decorative suspended ceilings field, because of the characteristics of good processing quality, various modeling patterns, difficult pollution, light weight, easy cleaning and the like, the aluminum veneer is popular with the market, and as the demand of the aluminum veneer is increased, the technical requirements on the aluminum veneer are also increased, for example, the application date is 2018.10.12, the publication number is CN209227886U, the invention is named as an aluminum veneer convenient for splicing for suspended ceilings in Chinese patent, and an aluminum veneer for splicing suspended ceilings is also disclosed, however, in the practical application process of the aluminum veneer in the patent, the fixing mechanism between the adjacent aluminum veneers is complicated, the requirement on the splicing seam precision of the adjacent aluminum veneers is high during operation, the splicing adjustment is inconvenient, and the difficulty is increased, the working efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at solves the problem that exists among the prior art, provides a simple and practical, can realize the quick concatenation installation of aluminium veneer according to customer's requirement, reduces the concatenation degree of difficulty, guarantees that concatenation department is tight real, can adapt to the numerous and diverse ceiling furred ceiling of pipeline to effectively guarantee the ceiling furred ceiling of concatenation quality with the aluminium veneer of being convenient for the concatenation.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides an aluminum single plate that furred ceiling was used and is convenient for concatenation, includes aluminum single plate body, locating piece and constant head tank, on four group's lateral walls of aluminum single plate body, set up the locating piece on two sets of corresponding lateral walls wherein, set up the constant head tank on two sets of lateral walls in addition, the degree of depth of constant head tank is less than the thickness of aluminum single plate body, and when the locating piece in the adjacent aluminum single plate body was inserted and is located the constant head tank, both were clearance fit.
Furthermore, a through hole is vertically formed in the positioning block, a clamping buckle is arranged at the end of the positioning block, and the length of the clamping buckle is smaller than that of the positioning block.
Furthermore, a clamping groove is formed in the positioning groove, and the structure of the clamping groove is matched with that of the clamping buckle.
Furthermore, still set up positioning stud and nut in the constant head tank, positioning stud is vertical to be set up in the constant head tank, the nut is joined in marriage soon and is connected on positioning stud.
Furthermore, the positioning stud is matched and slidably connected with a connecting frame.
Furthermore, a connecting frame is connected between two groups of positioning studs which are arranged in a diagonal line.
Furthermore, a connecting frame is connected among a plurality of groups of positioning studs which are arranged in a rectangular shape.
Furthermore, a connecting frame is connected between two groups of positioning studs at the splicing position of two adjacent aluminum veneers.
Further, the bottom of the aluminum veneer body is uniformly coated with an antioxidant fluorocarbon coating.
The utility model has the advantages and positive effects that: the utility model discloses simple structure, high durability and convenient operation, when guaranteeing that the installation of aluminium veneer is up to standard, the requirement to the concatenation precision has been reduced, and then the degree of difficulty when having reduced constructor installation this aluminium veneer, the installation effectiveness has been improved, utilize locating piece and constant head tank clearance fit, guarantee the compactness of concatenation between the adjacent aluminium veneer, the cooperation in chucking knot and chucking groove is used to make the concatenation more firm, and simultaneously, use the link and can realize that the difference of aluminium veneer is laid, be fit for the furred ceiling of pipeline miscellaneous distribution, improve the practicality of this aluminium veneer.
Drawings
Fig. 1 is a schematic view of embodiment 1 of the present invention.
Fig. 2 is a schematic view of embodiment 2 of the present invention.
Fig. 3 is a schematic view of embodiment 3 of the present invention.
Fig. 4 is a schematic view of embodiment 4 of the present invention.
Fig. 5 is a sectional view of the positioning block and the positioning groove of the utility model.
In the figure: the aluminum veneer comprises an aluminum veneer body 1, a positioning block 2, a through hole 21, a clamping buckle 22, a positioning groove 3, a clamping groove 31, a positioning stud 32, a nut 33 and a connecting frame 4.
Detailed Description
For a better understanding of the present invention, the following further description is given in conjunction with the following embodiments and accompanying drawings.
Example 1
As shown in fig. 1 and 5, an aluminium veneer convenient for splicing for suspended ceiling, including aluminium veneer body 1, locating piece 2 and constant head tank 3, on four group's lateral walls of aluminium veneer body 1, wherein set up locating piece 2 on two sets of corresponding lateral walls, set up constant head tank 3 on two sets of lateral walls in addition, the degree of depth of constant head tank 3 is less than the thickness of aluminium veneer body 1, and locating piece 2 in the adjacent aluminium veneer body 1 inserts when locating on constant head tank 3, both are clearance fit, through locating piece 2 and constant head tank 3 clearance fit between the adjacent aluminium veneer, the inseparable concatenation of aluminium veneer has been realized, required precision and the operation degree of difficulty to the concatenation have been reduced simultaneously, thereby the installation effectiveness of aluminium veneer has been improved.
Specifically, the positioning block 2 and the positioning groove 3 can be arranged adjacently at intervals in two groups.
Furthermore, a through hole 21 is vertically formed in the positioning block 2, a clamping buckle 22 is arranged at the end of the positioning block 2, the length of the clamping buckle 22 is smaller than that of the positioning block 2, and the aluminum veneer is ensured to be more tightly fixed during installation by utilizing the locking effect of the clamping buckle 22, so that the groove falling phenomenon is avoided.
Further, offer a chucking groove 31 in the constant head tank 3, the structure of chucking groove 31 cooperatees with the structure of chucking knot 22, uses through the cooperation of chucking knot 22 and chucking groove 31, and both retrain each other for the concatenation department of aluminium veneer is more firm.
Furthermore, a positioning stud 32 and a nut 33 are further arranged in the positioning groove 3, the positioning stud 32 is vertically arranged in the positioning groove 3, when two adjacent aluminum veneers are spliced, the positioning stud 32 is matched and slides to penetrate through the through hole 21, the nut 33 is screwed and connected onto the positioning stud 32, and by using the positioning stud 32, accurate matching of the positioning block 2 and the positioning groove 3 is realized, and the positioning block 2 and the positioning groove 3 at the splicing position of the aluminum veneers are further fixed.
Further, a connecting frame 4 is connected to the positioning stud 32 in a matching sliding manner, and the aluminum veneer is connected with the roof suspension through the connecting frame 4.
Furthermore, each group of positioning studs 32 is connected with a connecting frame 4, and the use of multiple groups of connecting frames 4 realizes the independence of each connection point of the aluminum veneer, thereby ensuring the installation quality of each connection point.
Further, the bottom of the aluminum veneer body 1 is uniformly coated with an antioxidant fluorocarbon coating, so that the service life of the aluminum veneer is prolonged.
In addition, the specific model specifications of the positioning studs 32 and the nuts 33 need to be calculated and determined according to the model selection of the specification parameters and the like of the aluminum single plates which are convenient to splice for the suspended ceiling, the model selection calculation method adopts the prior art, and the method is not improved in the application.
Example 2
As shown in fig. 2 and 5, an aluminium veneer convenient for concatenation for suspended ceiling, including aluminium veneer body 1, locating piece 2 and constant head tank 3, on four group's lateral walls of aluminium veneer body 1, wherein set up locating piece 2 on two sets of corresponding lateral walls, set up constant head tank 3 on two sets of lateral walls in addition, the degree of depth of constant head tank 3 is less than the thickness of aluminium veneer body 1, and locating piece 2 in the adjacent aluminium veneer body 1 inserts when locating on constant head tank 3, both are clearance fit, through locating piece 2 and constant head tank 3 clearance fit between the adjacent aluminium veneer, the inseparable concatenation of aluminium veneer has been realized, required precision and the operation degree of difficulty to the concatenation have been reduced simultaneously, thereby the installation effectiveness of aluminium veneer has been improved.
Furthermore, a through hole 21 is vertically formed in the positioning block 2, a clamping buckle 22 is arranged at the end of the positioning block 2, the length of the clamping buckle 22 is smaller than that of the positioning block 2, and the aluminum veneer is ensured to be more tightly fixed during installation by utilizing the locking effect of the clamping buckle 22, so that the groove falling phenomenon is avoided.
Furthermore, a clamping groove 31 is formed in the positioning groove 3, the structure of the clamping groove 31 is matched with that of the clamping buckle 22, and the clamping buckle 22 and the clamping groove 31 are matched for use and mutually constrained, so that the splicing part of the aluminum veneer is firmer.
Furthermore, a positioning stud 32 and a nut 33 are further arranged in the positioning groove 3, the positioning stud 32 is vertically arranged in the positioning groove 3, when two adjacent aluminum veneers are spliced, the positioning stud 32 is matched and slides to penetrate through the through hole 21, the nut 33 is screwed and connected onto the positioning stud 32, and by using the positioning stud 32, accurate matching of the positioning block 2 and the positioning groove 3 is realized, and the positioning block 2 and the positioning groove 3 at the splicing position of the aluminum veneers are further fixed.
Further, a connecting frame 4 is connected to the positioning stud 32 in a matching sliding manner, and the aluminum veneer is connected with the roof suspension through the connecting frame 4.
Further, a connecting frame 4 is connected between two sets of positioning studs 32 which are arranged diagonally, and the connecting frame 4 is arranged diagonally, so that the stability between the aluminum veneer and the connecting frame 4 is ensured, and the firmness of the whole ceiling is improved.
Further, the bottom of the aluminum veneer body 1 is uniformly coated with an antioxidant fluorocarbon coating, so that the service life of the aluminum veneer is prolonged.
Example 3
As shown in fig. 3 and 5, an aluminium veneer convenient for concatenation for suspended ceiling, including aluminium veneer body 1, locating piece 2 and constant head tank 3, on four group's lateral walls of aluminium veneer body 1, wherein set up locating piece 2 on two sets of corresponding lateral walls, set up constant head tank 3 on two sets of lateral walls in addition, the degree of depth of constant head tank 3 is less than the thickness of aluminium veneer body 1, and locating piece 2 in the adjacent aluminium veneer body 1 inserts when locating on constant head tank 3, both are clearance fit, through locating piece 2 and constant head tank 3 clearance fit between the adjacent aluminium veneer, the inseparable concatenation of aluminium veneer has been realized, required precision and the operation degree of difficulty to the concatenation have been reduced simultaneously, thereby the installation effectiveness of aluminium veneer has been improved.
Furthermore, a through hole 21 is vertically formed in the positioning block 2, a clamping buckle 22 is arranged at the end of the positioning block 2, the length of the clamping buckle 22 is smaller than that of the positioning block 2, and the aluminum veneer is ensured to be more tightly fixed during installation by utilizing the locking effect of the clamping buckle 22, so that the groove falling phenomenon is avoided.
Further, offer a chucking groove 31 in the constant head tank 3, the structure of chucking groove 31 cooperatees with the structure of chucking knot 22, uses through the cooperation of chucking knot 22 and chucking groove 31, and both retrain each other for the concatenation department of aluminium veneer is more firm.
Furthermore, a positioning stud 32 and a nut 33 are further arranged in the positioning groove 3, the positioning stud 32 is vertically arranged in the positioning groove 3, when two adjacent aluminum veneers are spliced, the positioning stud 32 is matched and slides to penetrate through the through hole 21, the nut 33 is screwed and connected onto the positioning stud 32, and by using the positioning stud 32, accurate matching of the positioning block 2 and the positioning groove 3 is realized, and the positioning block 2 and the positioning groove 3 at the splicing position of the aluminum veneers are further fixed.
Further, a connecting frame 4 is connected to the positioning stud 32 in a matching sliding manner, and the aluminum veneer is connected with the roof suspension through the connecting frame 4.
Furthermore, a connecting frame 4 is connected among a plurality of groups of positioning studs 32 which are arranged in a rectangular shape, so that the stress of the whole aluminum veneer is concentrated, the stress of each connecting part is uniform, and the installation quality of the suspended ceilings of the whole ceilings is further ensured.
Further, the bottom of the aluminum veneer body 1 is uniformly coated with an antioxidant fluorocarbon coating, so that the service life of the aluminum veneer is prolonged.
Example 4
As shown in fig. 4 and 5, an aluminium veneer convenient for concatenation for suspended ceiling, including aluminium veneer body 1, locating piece 2 and constant head tank 3, on four group's lateral walls of aluminium veneer body 1, wherein set up locating piece 2 on two sets of corresponding lateral walls, set up constant head tank 3 on two sets of lateral walls in addition, the degree of depth of constant head tank 3 is less than the thickness of aluminium veneer body 1, and when locating piece 2 in the adjacent aluminium veneer body 1 inserted and locates on constant head tank 3, both are clearance fit, the inseparable concatenation of aluminium veneer has been realized, the required precision and the operation degree of difficulty to the concatenation have been reduced simultaneously, thereby the installation effectiveness of aluminium veneer has been improved.
Furthermore, a through hole 21 is vertically formed in the positioning block 2, a clamping buckle 22 is arranged at the end of the positioning block 2, the length of the clamping buckle 22 is smaller than that of the positioning block 2, and the aluminum veneer is ensured to be more tightly fixed during installation by utilizing the locking effect of the clamping buckle 22, so that the groove falling phenomenon is avoided.
Further, offer a chucking groove 31 in the constant head tank 3, the structure of chucking groove 31 cooperatees with the structure of chucking knot 22, uses through the cooperation of chucking knot 22 and chucking groove 31, and both retrain each other for the concatenation department of aluminium veneer is more firm.
Furthermore, a positioning stud 32 and a nut 33 are further arranged in the positioning groove 3, the positioning stud 32 is vertically arranged in the positioning groove 3, when two adjacent aluminum veneers are spliced, the positioning stud 32 is matched and slides to penetrate through the through hole 21, the nut 33 is screwed and connected onto the positioning stud 32, and by using the positioning stud 32, accurate matching of the positioning block 2 and the positioning groove 3 is realized, and the positioning block 2 and the positioning groove 3 at the splicing position of the aluminum veneers are further fixed.
Further, a connecting frame 4 is connected to the positioning stud 32 in a matching sliding manner, and the aluminum veneer is connected with the roof suspension through the connecting frame 4.
Furthermore, a connecting frame 4 is connected between two groups of positioning studs 32 at the splicing positions of two adjacent aluminum veneers, so that the splicing seams of the two adjacent aluminum veneers are uniformly stressed, the splicing seams are guaranteed to be tight effectively when the ceiling is hung, the stability of the splicing seams is better, and the practicability is stronger.
Further, the bottom of the aluminum veneer body 1 is uniformly coated with an antioxidant fluorocarbon coating, so that the service life of the aluminum veneer is prolonged.
The utility model provides a ceiling furred ceiling is with aluminium veneer convenient to concatenation, simple structure, the practicality is strong, is applicable to the complicated ceiling furred ceiling of pipeline distribution complicacy, uses through the cooperation of locating piece 2 and constant head tank 3, and the effectual compactness of having guaranteed that adjacent aluminium veneer is connected, and is firm reliable, guarantees the installation quality, and it is simple convenient to install simultaneously, has reduced constructor's the installation degree of difficulty, has improved the efficiency of construction, uses embodiment 4 as an example, and this aluminium veneer's installation as follows:
1. an operator takes out the aluminum veneers, aligns the through hole 21 on the positioning block 2 on one side of one aluminum veneer with the positioning stud 32 on the positioning groove 3 of the other aluminum veneer, so that the through hole 21 is sleeved on the positioning stud 32 in a sliding manner, then combines the positioning block 2 and the positioning groove 3 to be matched, and simultaneously slightly presses the positioning block 2 and the positioning groove 3 hard to ensure that the clamping buckle 22 on the positioning block 2 is matched and clamped with the clamping groove 31 in the positioning groove 3;
2. the connecting frame 4 is matched with a positioning stud 32 vertically sleeved on the splicing seam of the aluminum veneer in a sliding manner, a fastening nut 33 is screwed on the positioning screw to prevent the connecting frame 4 from falling off, and the top end of the connecting frame 4 is connected to the roof through an expansion bolt or a screw;
3. and (5) repeating the step (1) and the step (2) to finish the whole ceiling.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims (10)

1. The utility model provides a furred ceiling is with aluminium veneer convenient to concatenation which characterized in that: the aluminum single plate comprises aluminum single plate bodies (1), positioning blocks (2) and positioning grooves (3), wherein the positioning blocks (2) are arranged on two corresponding sets of side walls on four sets of side walls of the aluminum single plate bodies (1), the positioning grooves (3) are formed in the other two sets of side walls, the depth of each positioning groove (3) is smaller than the thickness of each aluminum single plate body (1), and when the positioning blocks (2) in the adjacent aluminum single plate bodies (1) are inserted into the positioning grooves (3), the positioning blocks and the positioning grooves are in clearance fit.
2. The aluminum veneer for the suspended ceiling convenient to splice of claim 1, wherein: the positioning block (2) is vertically provided with a through hole (21), the end part of the positioning block (2) is provided with a clamping buckle (22), and the length of the clamping buckle (22) is smaller than that of the positioning block (2).
3. The aluminum veneer for the suspended ceiling convenient to splice of claim 2, wherein: a clamping groove (31) is formed in the positioning groove (3), and the structure of the clamping groove (31) is matched with that of the clamping buckle (22).
4. The aluminum veneer for the suspended ceiling convenient to splice of claim 3, wherein: still set up positioning stud (32) and nut (33) in constant head tank (3), positioning stud (32) are vertical to be set up in constant head tank (3), nut (33) join in marriage soon and connect on positioning stud (32).
5. The aluminum veneer for the suspended ceiling convenient to splice of claim 4, wherein: the positioning stud (32) is matched and connected with a connecting frame (4) in a sliding manner.
6. The aluminum veneer for the suspended ceiling convenient to splice of claim 5, wherein: and each group of positioning studs (32) is respectively connected with a connecting frame (4).
7. The aluminum veneer for the suspended ceiling convenient to splice of claim 5, wherein: and a connecting frame (4) is connected between two groups of positioning studs (32) which are arranged in a diagonal line.
8. The aluminum veneer for the suspended ceiling convenient to splice of claim 5, wherein: and a connecting frame (4) is connected among a plurality of groups of positioning studs (32) which are arranged in a rectangular shape.
9. The aluminum veneer for the suspended ceiling convenient to splice of claim 5, wherein: and a connecting frame (4) is connected between two groups of positioning studs (32) at the splicing position of two adjacent aluminum veneers.
10. The aluminum veneer for the suspended ceiling convenient to splice of claim 1, wherein: the bottom of the aluminum veneer body (1) is uniformly coated with an antioxidant fluorocarbon coating.
CN202020246182.1U 2020-03-03 2020-03-03 Aluminum veneer convenient to splice for suspended ceiling Active CN212026808U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020246182.1U CN212026808U (en) 2020-03-03 2020-03-03 Aluminum veneer convenient to splice for suspended ceiling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020246182.1U CN212026808U (en) 2020-03-03 2020-03-03 Aluminum veneer convenient to splice for suspended ceiling

Publications (1)

Publication Number Publication Date
CN212026808U true CN212026808U (en) 2020-11-27

Family

ID=73492750

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020246182.1U Active CN212026808U (en) 2020-03-03 2020-03-03 Aluminum veneer convenient to splice for suspended ceiling

Country Status (1)

Country Link
CN (1) CN212026808U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114704018A (en) * 2021-04-02 2022-07-05 上海亮荣建设(集团)有限公司 Prefabricated pipeline furred ceiling board for interior decoration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114704018A (en) * 2021-04-02 2022-07-05 上海亮荣建设(集团)有限公司 Prefabricated pipeline furred ceiling board for interior decoration

Similar Documents

Publication Publication Date Title
CN212026808U (en) Aluminum veneer convenient to splice for suspended ceiling
CN112814322A (en) Assembled leveling and mounting structure of bamboo fiber film-coated wallboard
CN108149880A (en) A kind of indoor wall decorative plate mounting structure and its installation method
CN109537782A (en) Back-bolt type stone dry hanging system
CN108708493B (en) Integral hanging type grating
CN209509262U (en) A kind of pendant component and a kind of blank assemblies
CN215290871U (en) Aluminum veneer curtain wall suspension assembly and aluminum veneer curtain wall
CN218346668U (en) Background wallboard of quick installation
CN214785586U (en) Decorative panel dry hanging piece for building construction
CN215106326U (en) Aluminum veneer curtain wall mounting structure
CN214658433U (en) Hanging part system
CN112443059A (en) Whole board ready-package partition wall mounting structure
CN209799135U (en) Aluminous gusset plate ceiling mounting structure
CN112942720A (en) Hanging part system
CN112900725A (en) Adjustable plug-in components for furred ceiling fossil fragments and connection structure thereof
CN220954102U (en) Assembled aluminum plate curtain wall construction
CN210799599U (en) Mortise-tenon joint structure and combination cabinet
CN212104768U (en) Finished product furred ceiling fossil fragments
CN214739540U (en) Assembled leveling and mounting structure of bamboo fiber film-coated wallboard
CN218176311U (en) Connecting structure of aluminum veneer and keel
CN211621945U (en) Prefabricated assembled CLT wood structure
CN211229252U (en) Aluminum alloy railing
CN219638309U (en) Socket type wood facing decorative board mounting structure
CN214941713U (en) Roof rotation regulation cloud platform
CN215716472U (en) Decorative suspended ceiling

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant