CN111926917A - Reinforcement shaped steel structure beam column for assembly type structure - Google Patents
Reinforcement shaped steel structure beam column for assembly type structure Download PDFInfo
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- CN111926917A CN111926917A CN202010855004.3A CN202010855004A CN111926917A CN 111926917 A CN111926917 A CN 111926917A CN 202010855004 A CN202010855004 A CN 202010855004A CN 111926917 A CN111926917 A CN 111926917A
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- limiting
- cavity
- beam column
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- plate
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention belongs to the field of building materials, and particularly discloses a reinforced steel structure beam column for an assembly type building, which comprises a cross rod, wherein an assembly head I and an assembly head II are respectively arranged at two ends of the cross rod; an assembly groove is fixed on the assembly head II, and a reinforcing piece I for limiting is inserted in the assembly head II on the outer side of the assembly groove; the reinforcing piece I is provided with a through inserting plate, a plurality of bolts are movably inserted into the through inserting plate through threads, and a concave cavity is formed in the through inserting plate on the outer side of each bolt; a plurality of safety fastener structures are hinged in the concave cavity; a hook block is fixed on the safety fastener structure; the inner wall of the inserting concave cavity is provided with a hook hanging opening; a through inserting plate arranged on the reinforcing piece I is used for primary limiting and fixing, and a plurality of bolts are used for secondary limiting and fixing; the convex hook blocks are limited in hook ports penetrating through the inner wall of the concave cavity and used for limiting and fixing for three times; after a plurality of bolt threads are inserted and fixed, the compressive resistance is improved by means of the inserting plate, the overall strength is improved, and the fracture is avoided.
Description
Technical Field
The invention belongs to the field of building materials, and particularly discloses a reinforced steel structure beam column for an assembly type building.
Background
Steel structural beams and columns are common structures used to support buildings, and steel structures are structures composed of steel materials and are one of the main building structure types. The structure mainly comprises steel beams, steel columns, steel trusses and other members made of section steel, steel plates and the like, and rust removing and preventing processes such as silanization, pure manganese phosphating, washing drying, galvanization and the like are adopted. The components or parts are typically joined by welds, bolts or rivets.
In the prior art, bolts or rivets among all components in a steel structure are connected and applied to a beam column which plays a main bearing role, and the bolts or rivets are easy to break or loosen under long-term previous high pressure, so that safety accidents are caused.
Disclosure of Invention
Aiming at the problems that bolts or rivets among all components in a steel structure are connected and applied to a beam column which plays a main bearing role in the prior art, and the bolts or rivets are easy to break or loosen under long-term former high pressure, so that safety accidents are caused, the embodiment of the invention aims to provide a reinforced steel structure beam column for an assembly type building, and aims to solve the problems. In order to achieve the purpose, the invention provides the following technical scheme:
a reinforced steel structure beam column for an assembly type building comprises a cross rod,
an assembly head I and an assembly head II which are in the same structure are respectively arranged at the two ends of the cross rod;
the assembling head II is fixedly provided with an assembling groove for inserting and fixing, a reinforcing piece I for limiting is inserted into the assembling head II on the outer side of the assembling groove and used for replacing a bolt or rivet for connection, and an inserting concave cavity is formed in the assembling head II in a manner of matching with the reinforcing piece I;
the reinforcing piece I is provided with a through inserting plate, a plurality of bolts are movably inserted into the through inserting plate through threads, and a concave cavity is formed in the through inserting plate on the outer side of each bolt; a plurality of safety fastener structures are hinged in the cavity, and one ends of the safety fastener structures far away from the hinged end are connected with elastic connecting pieces and are elastically connected in the cavity through the elastic connecting pieces;
a hook block is fixed on the surface of one side of the safety fastener structure far away from the concave cavity;
and a hook hanging opening is formed in the inner wall of the inserting concave cavity in a matching way with the hook hanging block.
In the assembly process, a single bolt or rivet is replaced by an inserting plate arranged on the reinforcing member I for primary limiting and fixing, and a plurality of bolts are movably inserted into the threads on the inserting plate through thread transmission to complete the penetration of the bolts through the inserting plate and used for secondary limiting and fixing; after the bolt penetrates through the inserting plate, the safety fastener structure is turned outwards around the hinge point, and the convex hook block is limited in a hook opening on the inner wall of the inserting concave cavity for three-time limiting and fixing; a plurality of bolt screw threads alternate fixed back to improve crushing resistance with the help of the board that alternates, with holistic intensity, avoid the fracture, combine spacing hook mouth on the cavity inner wall of interlude of evagination hook piece to be used for in strengthening the occlusal force, avoid becoming flexible.
In the reinforced steel structure beam column for the fabricated building, the reinforcing member I is provided with a limiting panel, and the limiting panel is integrally fixed on the through inserting plate;
the limiting panel and the inserting plate penetrate through and are fixed with threaded pipes, and the bolts are connected inside the threaded pipes in a threaded mode.
In the reinforced steel structure beam column for the assembly type building, the safety fastener structure is rotatably connected inside the concave cavity through the hinge piece.
In a further scheme, a sleeve is arranged on the hinged element and is rotatably connected to the fixed shaft through a bearing, and the fixed shaft is fixed inside the concave cavity through the fixing block.
In the reinforced steel structure beam column for the assembly type building, the safety fastener structure is provided with the rotating plate, and the cross section of the rotating plate is in a right trapezoid shape;
the hook block is fixed on the rotating plate;
the elastic connecting piece is arranged on the rotating plate.
In a further scheme, the elastic connecting piece is fixed on the rotating plate through a connecting plate.
Preferably, the elastic connecting piece is a spring.
And then, after the bolt supported by the rotating plate, the rotating plate rotates anticlockwise around the hinge piece and limits the convex hook block inside the hook opening on the inner wall of the interpenetration concave cavity, so that the engagement and the hanging buckle are realized.
In the reinforced steel structure beam column for the fabricated building, the assembling head I and the assembling head II are both connected to the cross rod in a sliding manner and are limited by the reinforcing piece II;
reinforcement I and reinforcement II are provided with the same structure, are equipped with the fixed block on reinforcement II to fix on assembly head I through the fixed block.
Slide adjusting assembly head I and assembly head II behind the horizontal pole upper position to utilize reinforcement II to carry out spacing fixed, accomplish fixed position and adjust, overcome the fixed problem of traditional transposition position, so that improve application scope.
In a further scheme, a limit groove is formed in the cross rod in a matched mode with the reinforcing piece II, the limit groove is composed of a plurality of unit grooves, and partition plates are fixed inside the limit grooves among the unit grooves;
a plurality of limiting cavities are formed in the inner wall of the unit groove.
In a further scheme, a panel is arranged on the assembling head II and fixed on a movable plate, a limiting through cavity is formed in the movable plate, the movable plate is sleeved on a cross rod through the limiting through cavity and is fixed inside the limiting through cavity to be limited on a sliding groove in a sliding manner through a limiting block;
the sliding groove is arranged on the cross rod.
The invention relates to a reinforced steel structure beam column for an assembly type building, which comprises a cross rod, wherein an assembly head I and an assembly head II which are in the same structure are respectively arranged at two ends of the cross rod; the assembling head II is fixedly provided with an assembling groove for inserting and fixing, a reinforcing piece I for limiting is inserted into the assembling head II on the outer side of the assembling groove, and an inserting concave cavity is formed in the assembling head II in a matching manner with the reinforcing piece I; the reinforcing piece I is provided with a through inserting plate, a plurality of bolts are movably inserted into the through inserting plate through threads, and a concave cavity is formed in the through inserting plate on the outer side of each bolt; a plurality of safety fastener structures are hinged in the cavity, and one ends of the safety fastener structures far away from the hinged end are connected with elastic connecting pieces and are elastically connected in the cavity through the elastic connecting pieces; a hook block is fixed on the surface of one side of the safety fastener structure far away from the concave cavity; a hook hanging opening is formed in the inner wall of the inserting concave cavity in a matched manner with the hook hanging block; in the assembly process, a single bolt or rivet is replaced by an inserting plate arranged on the reinforcing member I for primary limiting and fixing, and a plurality of bolts are movably inserted into the threads on the inserting plate through thread transmission to complete the penetration of the bolts through the inserting plate and used for secondary limiting and fixing; after the bolt penetrates through the inserting plate, the safety fastener structure is turned outwards around the hinge point, and the convex hook block is limited in a hook opening on the inner wall of the inserting concave cavity for three-time limiting and fixing; a plurality of bolt screw threads alternate fixed back to improve crushing resistance with the help of the board that alternates, with holistic intensity, avoid the fracture, combine spacing hook mouth on the cavity inner wall of interlude of evagination hook piece to be used for in strengthening the occlusal force, avoid becoming flexible.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which
FIG. 1 is a schematic view of a reinforced steel structural beam column for prefabricated buildings according to the present invention;
FIG. 2 is an enlarged view of the point A in FIG. 1;
FIG. 3 is a schematic view of the assembly head II of FIG. 1;
FIG. 4 is a schematic front view of the fastener I of FIG. 1;
FIG. 5 is an enlarged view of the point B in FIG. 4;
fig. 6 is a schematic view of the structure of the safety fastener of fig. 5.
In the figure:
1-reinforcing piece I, 2-assembling head I, 3-assembling groove, 4-reinforcing piece II, 5-fixing block, 6-cross bar, 7-limiting groove, 8-sliding groove, 9-unit groove and 10-assembling head II;
91-limiting cavity, 92-clapboard;
101-panel, 102-penetrating concave cavity, 103-moving plate, 104-limiting through cavity and 105-limiting block;
111-bolt, 112-threaded pipe, 113-limit panel, 114-through inserting plate, 115-concave cavity, 116-safety fastener structure;
1161-rotating plate, 1162-hinge piece, 1163-hook block, 1164-connecting plate, 1165-elastic connecting piece.
Detailed Description
Aiming at the problems that bolts or rivets among all components in a steel structure are connected and applied to a beam column which plays a main bearing role in the prior art, and the bolts or rivets are easy to break or loosen under long-term former high pressure, so that safety accidents are caused, the embodiment of the invention aims to provide a reinforced steel structure beam column for an assembly type building, and aims to solve the problems. In order to achieve the purpose, the invention provides the following technical scheme:
in the embodiment of the present invention, please refer to fig. 1, 3-6:
a reinforced steel structure beam column for an assembly type building comprises a cross rod 6, wherein an assembly head I2 and an assembly head II 10 which are in the same structure are respectively arranged at two ends of the cross rod 6; the assembling head II 10 is fixedly provided with an assembling groove 3 for inserting and fixing, a reinforcing member I1 for limiting is inserted into the assembling head II 10 on the outer side of the assembling groove 3 and used for replacing a bolt or rivet for connection, and the assembling head II 10 is provided with an inserting concave cavity 102 matched with the reinforcing member I1; the reinforcing member I1 is provided with a penetrating plate 114, a plurality of bolts 111 are movably inserted into the penetrating plate 114 through threads, and cavities 115 are formed in the penetrating plate 114 outside the bolts 111; a plurality of safety fastener structures 116 are hinged inside the cavity 115, and the end of each safety fastener structure 116 far away from the hinged end is connected with an elastic connecting piece 1165 and is elastically connected inside the cavity 115 through the elastic connecting piece 1165; a hook block 1163 is fixed on the surface of the safety fastener structure 116 on the side far away from the cavity 115; the inner wall of the penetrating concave cavity 102 is provided with a hook opening matched with the hook block 1163.
In the embodiment of the invention, in the assembly process, a single bolt or rivet is replaced by a through inserting plate 114 arranged on a reinforcing member I1 for primary limiting and fixing, and a plurality of bolts 111 are movably inserted into the through inserting plate 114 through threads, so that the bolts 111 penetrate through the through inserting plate 114 through thread transmission and are used for secondary limiting and fixing; after the bolt 111 penetrates through the insertion plate 114, the safety fastener structure 116 is turned outwards around the hinge point, and is limited in the hook opening on the inner wall of the insertion cavity 102 by the convex hook block 1163 for three-time limiting and fixing; after the plurality of bolts 111 are threaded and interpenetrated and fixed, the compressive resistance and the overall strength are improved by means of the interpenetration insertion plate 114, the breakage is avoided, and the outer convex hook block 1163 is limited in the hook opening on the inner wall of the interpenetration concave cavity 102 and used for strengthening the biting force and avoiding loosening.
In the embodiments of the present invention, please refer to fig. 4-6:
a limiting panel 113 is arranged on the reinforcing member I1, and the limiting panel 113 is integrally fixed on the inserting plate 114; the limiting panel 113 and the inserting plate 114 are fixedly penetrated with a threaded pipe 112, and the bolt 111 is connected inside the threaded pipe 112 in a threaded manner; the safety catch structure 116 is pivotally connected inside the cavity 115 by a hinge 1162. In a further aspect, the hinge 1162 is provided with a sleeve, the sleeve is rotatably connected to the fixing shaft through a bearing, and the fixing shaft is fixed inside the cavity 115 through a fixing block.
In the embodiment of the present invention, please refer to fig. 6:
the safety fastener structure 116 is provided with a rotating plate 1161, and the cross section of the rotating plate 1161 is in a right trapezoid shape; the hook block 1163 is fixed on the rotating plate 1161; the elastic connecting piece 1165 is arranged on the rotating plate 1161; in a further aspect, the elastic connection piece 1165 is fixed on the rotation plate 1161 through a connection plate 1164; preferably, the elastic connection 1165 is a spring.
Further, after the bolt 111 abuts against the rotating plate 1161, the rotating plate 1161 rotates counterclockwise around the hinge 1162 and limits the male hook block 1163 inside the hook opening on the inner wall of the insertion cavity 102, thereby realizing the engagement and hooking.
In the embodiment of the present invention, please refer to fig. 1-3:
the assembly head I2 and the assembly head II 10 are both connected to the cross rod 6 in a sliding mode and limited through a reinforcing piece II 4; reinforcing member I1 and reinforcing member II 4 are provided with the same structure, are equipped with fixed block 5 on reinforcing member II 4 to fix on assembly head I2 through fixed block 5. Slide adjusting assembly head I2 and assembly head II 10 are behind 6 upper positions of horizontal pole to utilize II 4 of reinforcement to carry out spacing fixed, accomplish fixed position and adjust, overcome the fixed problem of traditional transposition position, so that improve application scope.
In a further scheme, a limit groove 7 is formed in the cross rod 6 in a matched mode with the reinforcing piece II 4, the limit groove 7 is composed of a plurality of unit grooves 9, and partition plates 92 are fixed inside the limit grooves 7 among the unit grooves 9; a plurality of limiting cavities 91 are formed in the inner wall of the unit groove 9; the assembly head II 10 is provided with a panel 101, the panel 101 is fixed on a moving plate 103, a limiting through cavity 104 is formed in the moving plate 103, the moving plate 103 is sleeved on the cross rod 6 through the limiting through cavity 104, and is limited on the sliding groove 8 in a sliding manner through a limiting block 105 fixed inside the limiting through cavity 104; the sliding groove 8 is arranged on the cross rod 6.
The invention relates to a reinforced steel structure beam column for an assembly type building, which comprises a cross rod 6, wherein an assembly head I2 and an assembly head II 10 which are in the same structure are respectively arranged at two ends of the cross rod 6; the assembling head II 10 is fixedly provided with an assembling groove 3 for inserting and fixing, a reinforcing member I1 for limiting is inserted into the assembling head II 10 on the outer side of the assembling groove 3, and the assembling head II 10 is provided with an inserting concave cavity 102 matched with the reinforcing member I1; the reinforcing member I1 is provided with a penetrating plate 114, a plurality of bolts 111 are movably inserted into the penetrating plate 114 through threads, and cavities 115 are formed in the penetrating plate 114 outside the bolts 111; a plurality of safety fastener structures 116 are hinged inside the cavity 115, and the end of each safety fastener structure 116 far away from the hinged end is connected with an elastic connecting piece 1165 and is elastically connected inside the cavity 115 through the elastic connecting piece 1165; a hook block 1163 is fixed on the surface of the safety fastener structure 116 on the side far away from the cavity 115; a hook hanging opening is formed on the inner wall of the inserting concave cavity 102 in a way of being matched with the hook hanging block 1163; in the assembly process, a single bolt or rivet is replaced by a through inserting plate 114 arranged on the reinforcing member I1 for primary limiting and fixing, a plurality of bolts 111 are movably inserted into the through inserting plate 114 through threads, and the bolts 111 penetrate through the through inserting plate 114 through thread transmission and are used for secondary limiting and fixing; after the bolt 111 penetrates through the insertion plate 114, the safety fastener structure 116 is turned outwards around the hinge point, and is limited in the hook opening on the inner wall of the insertion cavity 102 by the convex hook block 1163 for three-time limiting and fixing; after the plurality of bolts 111 are threaded and interpenetrated and fixed, the compressive resistance and the overall strength are improved by means of the interpenetration insertion plate 114, the breakage is avoided, and the outer convex hook block 1163 is limited in the hook opening on the inner wall of the interpenetration concave cavity 102 and used for strengthening the biting force and avoiding loosening.
In the description of the present specification, the terms "connect", "mount", "fix", and the like are used in a broad sense, and for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. Those skilled in the art can understand the above specific meanings included in the present invention according to specific situations.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A reinforced steel structure beam column for an assembly type building is characterized in that,
the assembling device comprises a cross rod (6), wherein an assembling head I (2) and an assembling head II (10) which are in the same structure are respectively arranged at two ends of the cross rod (6);
the assembling head II (10) is fixedly provided with an assembling groove (3) for inserting and fixing, a reinforcing piece I (1) for limiting is inserted into the assembling head II (10) on the outer side of the assembling groove (3), and the assembling head II (10) is matched with the reinforcing piece I (1) and provided with an inserting concave cavity (102);
the reinforcing piece I (1) is provided with a penetrating plate (114), a plurality of bolts (111) are movably inserted into the penetrating plate (114) through threads, and cavities (115) are formed in the penetrating plate (114) on the outer side of the bolts (111); a plurality of safety fastener structures (116) are hinged in the cavity (115), and one end, far away from the hinged end, of each safety fastener structure (116) is connected with an elastic connecting piece (1165) and is elastically connected in the cavity (115) through the elastic connecting piece (1165);
a hook block (1163) is fixed on the surface of the safety fastener structure (116) on the side far away from the cavity (115);
the inner wall of the penetrating concave cavity (102) is provided with a hook opening matched with the hook block (1163).
2. The reinforced steel structural beam column for fabricated buildings according to claim 1,
a limiting panel (113) is arranged on the reinforcing member I (1), and the limiting panel (113) is integrally fixed on the through inserting plate (114);
the limiting panel (113) and the inserting plate (114) are fixedly provided with a threaded pipe (112) in a penetrating mode, and the bolt (111) is connected inside the threaded pipe (112) in a threaded mode.
3. The reinforced steel structural beam column for the fabricated building according to claim 1, wherein the safety fastener structure (116) is rotatably connected inside the cavity (115) by a hinge (1162).
4. The reinforced steel structural beam column for the fabricated building according to claim 3, wherein the hinge member (1162) is provided with a sleeve, the sleeve is rotatably connected to the fixing shaft through a bearing, and the fixing shaft is fixed inside the cavity (115) through the fixing block.
5. The reinforced steel structural beam column for fabricated buildings according to claim 1,
the safety fastener structure (116) is provided with a rotating plate (1161), and the cross section of the rotating plate (1161) is in a right trapezoid shape;
the hook block (1163) is fixed on the rotating plate (1161);
the elastic connecting piece (1165) is arranged on the rotating plate (1161).
6. The reinforced steel structural beam column for fabricated buildings as claimed in claim 5, wherein the elastic connection member (1165) is fixed to the pivotal plate (1161) through the connection plate (1164).
7. The reinforced steel structural beam column for fabricated buildings as claimed in claim 6, wherein the elastic connecting member (1165) is a spring.
8. The reinforced steel structural beam column for fabricated buildings according to claim 1,
the assembly head I (2) and the assembly head II (10) are both connected to the cross rod (6) in a sliding mode and limited through the reinforcing piece II (4);
reinforcing member I (1) and reinforcing member II (4) are provided with the same structure, are equipped with fixed block (5) on reinforcing member II (4) to fix on assembly head I (2) through fixed block (5).
9. The reinforced steel structural beam column for fabricated buildings according to claim 8,
a limiting groove (7) is formed in the cross rod (6) in a matched mode with the reinforcing piece II (4), the limiting groove (7) is composed of a plurality of unit grooves (9), and partition plates (92) are fixed inside the limiting groove (7) among the unit grooves (9);
a plurality of limiting cavities (91) are formed in the inner wall of the unit groove (9).
10. The reinforced steel structural beam column for fabricated buildings according to claim 8,
a panel (101) is arranged on the assembly head II (10), the panel (101) is fixed on a movable plate (103), a limiting through cavity (104) is formed in the movable plate (103), the movable plate (103) is sleeved on the cross rod (6) through the limiting through cavity (104), and a limiting block (105) is fixed inside the limiting through cavity (104) and is limited on the sliding groove (8) in a sliding manner;
the sliding groove (8) is arranged on the cross rod (6).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010855004.3A CN111926917B (en) | 2020-08-24 | 2020-08-24 | Reinforcement shaped steel structure beam column for assembly type structure |
| CN202110892584.8A CN113529948B (en) | 2020-08-24 | 2020-08-24 | Reinforcement shaped steel structure beam column for assembly type structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010855004.3A CN111926917B (en) | 2020-08-24 | 2020-08-24 | Reinforcement shaped steel structure beam column for assembly type structure |
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| CN202110892584.8A Division CN113529948B (en) | 2020-08-24 | 2020-08-24 | Reinforcement shaped steel structure beam column for assembly type structure |
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| CN111926917B CN111926917B (en) | 2021-09-21 |
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| CN202110892584.8A Active CN113529948B (en) | 2020-08-24 | 2020-08-24 | Reinforcement shaped steel structure beam column for assembly type structure |
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| CN1338018A (en) * | 1998-12-26 | 2002-02-27 | 赛达技术有限公司 | Construction and method for jointing a plurality of steel members using sheet rings |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113529948B (en) | 2022-07-15 |
| CN113529948A (en) | 2021-10-22 |
| CN111926917B (en) | 2021-09-21 |
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