A steel structure unit

Abstract

The present invention relates to a steel structure unit, comprising a frame, the frame comprising two first square steel tubes arranged in parallel to each other, two second square steel tubes are connected between the two first square steel tubes, and the edges of the two first square steel tubes are opposite, and the edges of the two second square steel tubes are opposite; a plurality of purlins are connected between the two second square steel tubes, and V-shaped bayonet holes are arranged at both ends of the length direction of the purlin, and the two bayonet holes are respectively clamped at the opposite edges of the two second square steel tubes; the bayonet hole has two clamping parts arranged in opposite directions, and a plurality of fixing grooves are provided on the four side walls of the second square steel tube along the length direction thereof, and the four side walls of the second square steel tube have the same structure; the two clamping parts of the bayonet hole are respectively clamped in the corresponding fixing grooves of the two adjacent side walls of the second square steel tube. The purlin of the present invention can be clamped and connected with the frame, so that the installation of the purlin is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of steel structures, and in particular to a steel structure unit. Background Art

[0002] Steel structures are generally classified as prefabricated buildings, which are fast and environmentally friendly. However, due to the exposed steel structure, traditional steel structures need to be coated with fire retardant paint on the surface. On the other hand, the exposed structure is not acceptable to most people. Therefore, most of them are used in the construction of commercial venues, and the proportion of use in the residential field is relatively small.

[0003] In addition, in existing steel structures, purlins and columns or beams are connected by screws, which is inconvenient to install and takes a long time to construct. Summary of the invention

[0004] In view of the defects in the prior art, the technical problem to be solved by the present invention is to provide a steel structure unit, the purlins of which can be snap-connected with the frame, so that the installation of the purlins is more convenient.

[0005] In order to solve the above technical problems, the present invention provides a steel structure unit, including a frame, which includes two first square steel tubes arranged parallel to each other, two second square steel tubes parallel to each other are connected between the two first square steel tubes, the first square steel tubes and the second square steel tubes have the same structure, and the edges of the two first square steel tubes are opposite, and the edges of the two second square steel tubes are opposite; a plurality of purlins are connected between the two second square steel tubes, and V-shaped bayonet holes are arranged at both ends of the purlin in the length direction, and the two bayonet holes are respectively clamped at the opposite edges of the two second square steel tubes; the bayonet hole has two clamping parts arranged oppositely, and a plurality of fixing grooves are opened on the four side walls of the second square steel tube along the length direction thereof, and the four side walls of the second square steel tube have the same structure; the two clamping parts of the bayonet hole are respectively clamped in the corresponding fixing grooves of two adjacent side walls of the second square steel tube.

[0006] In the present invention, the edge of the second square steel tube is opposite to the end of the purlin, so that the bayonet of the purlin can be snapped into the fixing groove of the second square steel tube. When installing the purlin, no installation tools are required, and the installation is convenient. In addition, a plurality of fixing grooves are arranged in the length direction of the second square steel tube. The purlin can be snapped into any fixing groove according to installation requirements, which is convenient for building the steel structure.

[0007] Preferably, both ends of the fixing groove in the left and right directions are provided with plug-in plates, the left and right directions of the fixing groove are defined as the length direction of the second square steel pipe, and a plurality of the fixing grooves are equidistantly arranged, a slot adapted to the plug-in plate is provided on the clamping portion, and the distance between two adjacent fixing grooves is 0.25na. Where n is a positive integer, and a is the diagonal distance of the cross section of the second square steel pipe. The plug-in plates are plugged into the corresponding slots, which can further define the position of the purlins and improve the connection strength between the purlins and the second square steel pipes.

[0008] Preferably, a plurality of mounting grooves are provided on both sides of the width direction of the purlin, the plurality of mounting grooves are equidistantly provided along the length direction of the purlin, and the mounting grooves on both sides of the width direction of the purlin are symmetrically provided; a plurality of structural plates are connected to both sides of the width direction of the purlin, the plurality of structural plates are arranged along the length direction of the purlin, and a first clamping piece and a second clamping piece are provided at both ends of the width direction of the structural plate, respectively, and the first clamping piece and the second clamping piece are both provided along the length direction of the structural plate. The mounting grooves are provided at both ends of the width direction of the purlin, which can facilitate the installation of the structural plate. In addition, the present invention does not require installation tools when installing the structural plate, and the installation is convenient.

[0009] Preferably, in two adjacent structural plates, the first clamping member of one structural plate and the second clamping member of the other structural plate are clamped in the same installation groove, and the second clamping member located in the same installation groove is covered on the outer periphery of the first clamping member; on the same structural plate, the first clamping member is provided with a first clamping strip along its length direction on one side close to the second clamping member, and the second clamping member is provided with a second clamping strip along its length direction on one side close to the first clamping member, and the bottoms of the first clamping strip and the second clamping strip are both formed with inclined surfaces, the inclined surface of the first clamping strip is gradually inclined upward in the direction away from the first clamping member, and the inclined surface of the second clamping strip is gradually inclined upward in the direction away from the second clamping member; the first clamping slot and the second clamping slot adapted to the first clamping strip and the second clamping strip are respectively provided on the two side walls of the installation groove. With this structural design, the first clamping members and the second clamping members of the two adjacent structural plates after installation partially overlap and overlap, which can achieve a waterproof effect, and can also effectively prevent the structural plate from falling, which is conducive to improving the connection strength between the structural plate and the purlin.

[0010] Preferably, on the same structural plate, the first clamping member forms a convex surface on a side away from the second clamping member, and the second clamping member forms a concave surface on a side away from the first clamping member, and the concave surface can be covered on the periphery of the convex surface of the first clamping member of the adjacent structural plate.

[0011] Preferably, the mounting groove comprises, from the outside to the inside, a first groove body and a second groove body which are interconnected, the width of the second groove body being greater than the width of the first groove body, a step surface being formed on a side of the second groove body close to the first groove body, and the first clamping groove and the second clamping groove being arranged on the side wall of the first groove body; the first clamping piece is connected in the first groove body, the bottom end of the second clamping piece extends into the second groove body, and the bottom end of the second clamping piece abuts against the step surface.

[0012] Preferably, on the same structural plate, a first limiting groove is provided along the length direction of the first clamping member on a side away from the second clamping member, and a second limiting groove is provided along the length direction of the second clamping member on a side away from the first clamping member; in two adjacent structural plates, the first limiting groove and the second limiting groove are combined to form a clamping groove, and a butt joint connected to the clamping groove is formed between the two adjacent structural plates, and the width of the butt joint is smaller than the width of the clamping groove.

[0013] Preferably, a plurality of decorative panels are laid on the side of the structural panel away from the purlin, the plurality of decorative panels are arranged along the length direction of the purlin, and a clamping structure clamped with the clamping groove is provided at the bottom of the decorative panel. With this structure, no installation tools are required when installing the decorative panel, and the installation is convenient.

[0014] Preferably, the clamping structure includes semi-limiting strips arranged at both ends of the decorative panel in the width direction, and a plurality of limit strips are arranged between the two semi-limiting strips, and the semi-limiting strips and the limit strips are both arranged along the length direction of the decorative panel; the limit strip includes a through portion and a limiting portion from top to bottom, the through portion is adapted to the butt joint, and the limiting portion is adapted to the clamping groove; the two semi-limiting strips close to each other of the two adjacent decorative panels are clamped in the same clamping groove, and the two semi-limiting strips can be combined to form a whole limit strip with the same limit strip structure.

[0015] Preferably, the width of the purlin is equal to or greater than the diagonal width of the cross section of the second square steel tube;

[0016] The spacing between two adjacent installation grooves is equal to a multiple of the diagonal width of the cross section of the second square steel tube. After the purlin is connected to the second square steel tube, the installation grooves near the two ends of the purlin in the length direction are flush with the end faces of the diagonal width direction of the second square steel tube. With this structural design, the decorative panel can completely wrap the first square steel tube and the second square steel tube, so that the first square steel tube, the second square steel tube, the purlin and the structural panel are completely hidden, thereby improving the aesthetics of the steel structure unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0018] Figure 1 This is one of the structural schematic diagrams of the steel structure unit according to an embodiment of the present invention;

[0019] Figure 2 This is the second structural schematic diagram of the steel structure unit of an embodiment of the present invention;

[0020] Figure 3 This is a schematic structural diagram of a second square steel pipe according to an embodiment of the present invention;

[0021] Figure 4 Schematic diagram of the structure of the purlin according to an embodiment of the present invention;

[0022] Figure 5 Schematic diagram of the connection structure between the second square steel pipe and the purlin according to an embodiment of the present invention;

[0023] Figure 6 A schematic diagram of the connection structure of the purlin, the structural plate and the decorative plate according to an embodiment of the present invention;

[0024] Figure 7 for Figure 6 The local enlarged view P in the figure;

[0025] Figure 8 This is a schematic diagram of the connection structure of the first square steel pipe and the second square steel pipe according to an embodiment of the present invention;

[0026] Fig. 9 This is one of the structural schematic diagrams of the eight-sided end plate according to an embodiment of the present invention;

[0027] Fig.10 This is the second structural schematic diagram of the eight-sided end plate according to the embodiment of the present invention;

[0028] Fig.11 is a schematic structural diagram of a first connecting member according to an embodiment of the present invention;

[0029] Fig.12 is a schematic structural diagram of a second connecting member according to an embodiment of the present invention;

[0030] Fig.13 It is a structural schematic diagram of the first square steel pipe or the second square steel pipe connected to each other in an embodiment of the present invention.

[0031] Reference numerals:

[0032] 1-first square steel pipe; 2-second square steel pipe; 21-fixing groove; 211-plug-in board; 3-purlin; 31-bayonet; 311-slot; 32-installation groove; 321-first slot; 322-second slot; 4-structural plate; 41-first clamping member; 411-first clamping strip; 412-first limiting groove; 42-second clamping member; 421-second clamping strip; 422-second limiting groove; 5-decorative plate; 51-semi-limiting strip; 52-limiting strip; 6-eight-sided end plate; 61-protrusion; 611-first inclined surface; 612-second inclined surface; 613-plane; 62-groove; 63-through groove; 64-connecting part; 65-opening; 7-first connecting member; 71-adjusting part; 72-first threaded part; 73-conical part; 74 - second threaded portion; 8 - second connecting member; 81 - connecting bolt; 82 - adjusting block; 83 - second nut. DETAILED DESCRIPTION

[0033] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0034] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13 As shown, this embodiment provides a steel structure unit, including a frame, the frame including two first square steel tubes 1 arranged parallel to each other, two second square steel tubes 2 arranged parallel to each other are connected between the two first square steel tubes 1, and the edges of the two first square steel tubes 1 are opposite to each other, and the edges of the two second square steel tubes 2 are opposite to each other. Figure 3 , a plurality of fixing grooves 21 are provided on the four side walls of the second square steel tube 2 along the length direction thereof, and plug-in plates 211 are provided at both ends of the fixing grooves 21 in the left and right directions, and the left and right directions of the fixing grooves 21 are defined as the length direction of the second square steel tube 2; the four side walls of the second square steel tube 2 have the same structure, that is, the four side walls of the second square steel tube 2 are symmetrically arranged, and the plurality of fixing grooves 21 are equidistantly arranged in the length direction of the second square steel tube 2. In this embodiment, the first square steel tube 1 and the second square steel tube 2 have the same structure, which will not be described in detail herein.

[0036] The distance between two adjacent fixing grooves 21 is 0.25na, where n is a positive integer and a is the diagonal distance of the cross section of the second square steel tube 2. In this embodiment, a is 150mm and n is 2, that is, the distance between two adjacent fixing grooves 21 is 75mm. This modular relationship can facilitate the subsequent design, processing, installation and decoration.

[0037] A plurality of purlins 3 are connected between the two second square steel tubes 2. Figure 4 , the two ends of the purlin 3 in the length direction are provided with V-shaped bayonet 31, and the two bayonet 31 are respectively engaged with the opposite edges of the two second square steel tubes 2; the bayonet 31 has two oppositely arranged clamping parts, and the two clamping parts of the bayonet 31 are respectively engaged with the corresponding fixing grooves 21 of the two adjacent side walls of the second square steel tube 2. In addition, a slot 311 adapted to the above-mentioned plug-in plate 211 is provided on the clamping part. When connecting, the purlin 3 is aligned with the corresponding edge of the second square steel tube 2, and then the purlin is pushed toward the direction of the second square steel tube 2 with force, so that the clamping part of the purlin 3 is engaged with the corresponding fixing groove 21, and the plug-in plate 211 is plugged into the corresponding slot 311, so that the purlin 3 is firmly connected to the second square steel tube 2 (refer to Figure 5 ).Depend on Figure 3 It can be seen that a pair of plug-in plates 211 are respectively arranged near the two edges in the fixing groove 21 of this embodiment, and the purlin 3 is connected to the farther pair of plug-in plates. The design of the two pairs of plug-in plates allows the purlin 3 to be reliably connected to any edge of the second square steel pipe 2.

[0038] In this embodiment, the purlin 3 is formed by bending a steel plate, and the two ends of the purlin in the width direction are bent to form a triangular structure. Figure 2 .

[0039] Further, refer to Figure 4 , Figure 6 and Figure 7 A plurality of mounting grooves 32 are provided on both sides of the width direction of the purlin 3, and the plurality of mounting grooves 32 are equidistantly arranged along the length direction of the purlin 3, and the mounting grooves 32 on both sides of the width direction of the purlin 3 are symmetrically arranged; a plurality of structural plates 4 are connected to both sides of the width direction of the purlin 3, and the plurality of structural plates 4 are arranged along the length direction of the purlin 3, and a first clamping member 41 and a second clamping member 42 are respectively provided at both ends of the width direction of the structural plate 4, and the first clamping member 41 and the second clamping member 42 are both arranged along the length direction of the structural plate 4; among two adjacent structural plates 4, the first clamping member 41 of one structural plate and the second clamping member 42 of the other structural plate are clamped in the same mounting groove 32, and the second clamping member 42 located in the same mounting groove 32 covers the outer periphery of the first clamping member 41.

[0040] Specifically, on the same structural plate 4, a first clip 41 is provided with a first clip strip 411 along its length direction on a side close to the second clip 42, and a second clip strip 421 is provided with a second clip strip 421 along its length direction on a side close to the first clip 41 of the second clip 42. The bottoms of the first clip strip 411 and the second clip strip 421 both form inclined surfaces. The inclined surface of the first clip strip 411 is gradually inclined upward in a direction away from the first clip 41, and the inclined surface of the second clip strip 421 is gradually inclined upward in a direction away from the second clip 42. Moreover, on the same structural plate 4, a convex surface is formed on the side of the first clip 41 away from the second clip 42, and a concave surface is formed on the side of the second clip 42 away from the first clip 41, and the concave surface can be covered on the periphery of the convex surface of the first clip 41 of the adjacent structural plate.

[0041] Specifically, the above-mentioned installation groove 32 includes a first groove body and a second groove body that are interconnected from the outside to the inside. The width of the second groove body is greater than that of the first groove body. A step surface is formed on the side of the second groove body close to the first groove body. The side wall of the first groove body is provided with a first card slot 321 and a second card slot 322 that are adapted to the first card strip 411 and the second card strip 421.

[0042] In this embodiment, the first clamping member 41 is connected to the first slot body, the bottom end of the second clamping member 42 extends into the second slot body, and the bottom end of the second clamping member 42 abuts against the step surface of the installation slot 32 .

[0043] Furthermore, on the same structural plate 4, a first limiting groove 412 is provided along the length direction of the first clamping member 41 on a side away from the second clamping member 42, and a second limiting groove 422 is provided along the length direction of the second clamping member 42 on a side away from the first clamping member 41; in two adjacent structural plates 4, the first limiting groove 412 and the second limiting groove 422 are combined to form a clamping groove, and a butt joint connected to the clamping groove is formed between the two adjacent structural plates 4, and the width of the butt joint is smaller than the width of the clamping groove. A plurality of decorative panels 5 are laid on the side of the structural panel 4 away from the purlin 3, and the plurality of decorative panels 5 are arranged along the length direction of the purlin 3. A clamping structure clamped with the clamping groove is provided at the bottom of the decorative panel 5, and the clamping structure includes semi-limiting strips 51 arranged at both ends of the decorative panel 5 in the width direction, and a limiting strip 52 is arranged between the two semi-limiting strips 51, and the semi-limiting strips 51 and the limiting strips 52 are both arranged along the length direction of the decorative panel 5; the limiting strip 52 includes a through portion and a limiting portion from top to bottom, the through portion is adapted to the butt joint, and the limiting portion is adapted to the clamping groove; the two semi-limiting strips 51 close to each other of the two adjacent decorative panels 5 are clamped in the same clamping groove, and the two semi-limiting strips 51 can be combined to form a whole limiting strip with the same structure as the limiting strip 52, so that the two adjacent decorative panels 2 can be seamlessly butted.

[0044] In addition, the width of the purlin 3 in this embodiment is the same as the diagonal width of the cross section of the second square steel tube 2. In practice, the width of the purlin 3 can also be designed to be larger than the diagonal width of the cross section of the second square steel tube 2. Further, the spacing between two adjacent mounting grooves 32 is equal to a multiple of the diagonal width of the cross section of the second square steel tube 2. In this embodiment, the distance between two adjacent mounting grooves 32 is 150 mm, which is equal to the diagonal width of the cross section of the second square steel tube 2, 150 mm.

[0045] After the purlin 3 is connected to the second square steel tube 2, the installation grooves 32 near the two ends of the length direction of the purlin 3 are flush with the end faces of the diagonal width direction of the second square steel tube 2, that is, the distance between the installation grooves 32 near the ends of the length direction of the purlin 3 and the diagonal surface of the second square steel tube 2 that is consistent with the width direction of the purlin 3 is half the distance between two adjacent installation grooves 32. In this embodiment, the distance between the installation groove and the diagonal surface and the distance between two adjacent installation grooves are described based on the middle position of the installation groove. The steel structure unit of this embodiment can be expanded into a variety of steel structures. After two purlins 3 are symmetrically connected on both sides of the length direction of the same second square steel tube 2, the distance between the two installation grooves close to each other of the two purlins 3 is also 150mm, so as to facilitate the installation of the later structural plate.

[0046] In the steel structure unit of this embodiment, the connection between the second square steel pipe 2, the purlin 3, the structural plate 4 and the decorative plate 5 adopts a clamping structure. No tools are required during installation, making the assembly of the steel structure unit more convenient. In addition, the structure and size design of the purlin 3 are such that when the side of the second square steel pipe away from the purlin is connected to other steel structure units, the structural plate can be connected to the purlins of two steel structure units at the same time. After laying the decorative plate, the first square steel pipe, the second square steel pipe, the purlin and the structural plate can be fully wrapped inside, thereby improving the overall aesthetics of the steel structure unit. In addition, referring to Figure 2 After the steel structure unit of this embodiment is erected, a number of cavities are formed inside, and flame retardant materials can be filled in the cavities to improve the fire resistance of the steel structure unit without applying fire retardant paint on the surface of the decorative panel.

[0047] In order to facilitate the connection between the first square steel tube 1 and the second square steel tube 2, and the splicing of multiple steel structure units, the steel structure unit of this embodiment also includes an eight-sided end plate assembly, which includes an eight-sided end plate 6. Fig. 9 and Fig.10The octahedral end plate 6 includes a square body, one side of which is provided with four protrusions 61 arranged in a central symmetric manner, and the side of the protrusion 61 away from the body has a first inclined surface 611 and a second inclined surface 612, the top of the first inclined surface 611 of the same protrusion 61 intersects with the top of the second inclined surface 612, and between two adjacent protrusions 61, the bottom of the first inclined surface 611 of one protrusion 61 intersects with the bottom of the second inclined surface 612 of the other protrusion 61 in the diagonal direction of the body, so that a card slot is formed in the two diagonal directions of the body. An opening 65 is provided through the middle position of the above-mentioned body, and the opening 65 passes through the first inclined surface 611 and the second inclined surface 612 of the protrusion 61. Four grooves 62 are arranged symmetrically on the side of the body away from the protrusion 61. The inner wall of the groove 62 is a spherical surface. The four grooves 62 correspond to the four protrusions 61 one by one, and each groove 62 is provided with a through groove 63. One end of the through groove 63 penetrates the first inclined surface 611 and the second inclined surface 612 of the corresponding protrusion 61, and the other end penetrates the inner wall of the corresponding groove 62. A connecting portion 64 is also protrudingly provided between two adjacent grooves 62 in this embodiment, and the four connecting portions 64 are respectively located at the four corners of the body.

[0048] The eight-sided end plate assembly of this embodiment further includes a first connecting member 7, Fig.11 , the first connecting member 7 is provided with an adjusting portion 71, the adjusting portion 71 is provided with a spherical surface adapted to the inner wall of the groove 62, the first connecting member 7 is also provided with a first threaded portion 72 that can pass through the through groove 63, the outer periphery of the first threaded portion 72 is provided with a self-tapping thread or a common thread, in this embodiment, preferably a self-tapping thread, the first connecting member 7 can rotate relative to the groove 62, so that the first threaded portion 72 switches between the first connection position and the second connection position, when the first threaded portion 72 is in its first connection position, the first threaded portion 72 is perpendicular to the first inclined surface 611 of the corresponding protrusion 61, and when the first threaded portion 72 is in its second connection position, the first threaded portion 72 is perpendicular to the second inclined surface 612 of the corresponding protrusion 61. In this embodiment, the angle between the first inclined surface 611 and the second inclined surface 612 is 90 degrees, and the angle turned by the first threaded portion 72 when it moves from its first connection position to the second connection position is also 90 degrees. In addition, an external hexagon is also provided at the end of the adjusting portion 71 away from its spherical surface to facilitate the operation of the wrench. Furthermore, a conical portion 73 is also provided on the first connecting member 7, and the conical portion 73 and the first threaded portion 72 are respectively arranged on both sides of the adjusting portion 71. The diameter of the conical portion 73 gradually decreases in the direction away from the adjusting portion 71, and the small diameter end of the conical portion 73 is connected to the second threaded portion 74, and the second threaded portion 74 is threadedly connected to the first nut, which is not shown in the figure.

[0049] Furthermore, a plane 613 is formed on the top of the protrusion 61, and the plane 613 intersects with the first inclined surface 611 and the second inclined surface 612 of the protrusion 61; this embodiment also includes a second connecting member 8, referring to Fig.12 The second connecting member 8 includes a connecting bolt 81, and the outer peripheral movable sleeve of the bolt rod of the connecting bolt 81 is provided with two adjusting blocks 82. The two adjusting blocks 82 are both provided with a spherical surface adapted to the inner wall of the groove 62, and the spherical surfaces of the two adjusting blocks 82 are arranged opposite to each other. The second connecting member 8 also includes a second nut 83 threadedly connected to the connecting bolt 81.

[0050] In this embodiment, a connecting hole is provided between two adjacent fixing grooves of the first square steel tube 1 and the second square steel tube 2. When the first square steel tube 1 and the second square steel tube 2 are angle-jointed, Figure 8 First, weld the octagonal end plate 6 to the end of the second square steel tube 2, so that the four connecting parts 64 are respectively inserted into the four corners of the second square steel tube 2; then a diagonal slot of the octagonal end plate 6 at the end of the second square steel tube 2 is abutted against the edge of the first square steel tube 1, and then four first connecting members 7 are respectively inserted into the four through grooves 63, and the first connecting member 7 is rotated so that its first threaded portion 72 is inserted into the corresponding connecting hole, and the external hexagon on the first connecting member 7 is tightened with a wrench so that the self-tapping thread on the first threaded portion 72 is threadedly connected to the connecting hole. To ensure a reliable connection, a nut can also be threadedly connected to the end of the first threaded portion 72 extending out of the connecting hole.

[0051] When multiple steel structure units are connected to each other, the first square steel pipe 1 or the second square steel pipe 2 needs to be butt-jointed. Fig.13 , an eight-sided end plate 6 is welded to the mutually adjacent ends of the two first square steel tubes 1 or the second square steel tubes 2, and then the two eight-sided end plates 6 are connected together by four second connecting members 8, so that the planes 613 of the two eight-sided end plates 6 abut against each other. When connecting, an adjustment block 82 is first sleeved on the connecting bolt 81, so that the adjustment block 82 is embedded in the groove 62 of one of the eight-sided end plates, and after the connecting bolt 81 passes through the corresponding groove 62 of the other eight-sided end plate, another adjustment block 82 is sleeved on the outer periphery of the connecting bolt 81, and then the second nut 83 is threadedly connected to the connecting bolt 81, so that the other adjustment block 82 is embedded in the corresponding groove 62 of the other eight-sided end plate.

[0052] In the specification of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, systems and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, systems, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, systems, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A steel structure unit, characterized in that: include: A frame, the frame comprising two first square steel tubes arranged in parallel with each other, two second square steel tubes being connected between the two first square steel tubes, the first square steel tubes and the second square steel tubes having the same structure, and the edges of the two first square steel tubes being opposite to each other, and the edges of the two second square steel tubes being opposite to each other; A plurality of purlins are connected between the two second square steel tubes, and V-shaped bayonet holes are provided at both ends of the purlins in the length direction, and the two bayonet holes are respectively clamped at the opposite edges of the two second square steel tubes; The bayonet has two oppositely arranged clamping parts, and a plurality of fixing grooves are provided on the four side walls of the second square steel pipe along the length direction thereof, and the four side walls of the second square steel pipe have the same structure; The two clamping parts of the bayonet are respectively clamped in the corresponding fixing grooves of the two adjacent side walls of the second square steel pipe; Both ends of the fixing groove in the left and right directions are provided with plug-in plates, the left and right directions of the fixing groove are defined as the length direction of the second square steel tube, and a plurality of the fixing grooves are arranged equidistantly, a slot adapted to the plug-in plate is arranged on the clamping portion, and the distance between two adjacent fixing grooves is 0.25na. Wherein, n is a positive integer, and a is the diagonal distance of the cross section of the second square steel tube; A plurality of mounting grooves are arranged on both sides of the purlin in the width direction, the plurality of mounting grooves are arranged equidistantly along the length direction of the purlin, and the mounting grooves on both sides of the purlin in the width direction are arranged symmetrically; A plurality of structural plates are connected to both sides of the purlin in the width direction, and the plurality of structural plates are arranged along the length direction of the purlin. A first clamping piece and a second clamping piece are respectively provided at both ends of the structural plate in the width direction, and the first clamping piece and the second clamping piece are both provided along the length direction of the structural plate.

2. A steel structure unit according to claim 1, characterized in that: Among two adjacent structural plates, a first clamping member of one structural plate and a second clamping member of the other structural plate are clamped in the same mounting groove, and the second clamping member located in the same mounting groove covers the outer periphery of the first clamping member; On the same structural plate, a first clip strip is provided on one side of the first clipping member close to the second clipping member along its length direction, and a second clip strip is provided on one side of the second clipping member close to the first clipping member along its length direction, and the bottoms of the first clip strip and the second clip strip both form inclined surfaces, the inclined surface of the first clip strip is gradually inclined upward in a direction away from the first clipping member, and the inclined surface of the second clip strip is gradually inclined upward in a direction away from the second clipping member; The two side walls of the installation slot are respectively provided with a first clamping slot and a second clamping slot adapted to the first clamping strip and the second clamping strip.

3. A steel structure unit according to claim 1, characterized in that: On the same structural plate, the first clamping piece forms a convex surface on a side away from the second clamping piece, and the second clamping piece forms a concave surface on a side away from the first clamping piece, and the concave surface can cover the outer periphery of the convex surface of the first clamping piece of the adjacent structural plate.

4. A steel structure unit according to claim 2, characterized in that: The mounting groove includes, from outside to inside, a first groove body and a second groove body that are connected to each other, the width of the second groove body is greater than the width of the first groove body, a step surface is formed on a side of the second groove body close to the first groove body, and the first clamping groove and the second clamping groove are arranged on the side wall of the first groove body; The first clamping member is connected to the first slot body, the bottom end of the second clamping member extends into the second slot body, and the bottom end of the second clamping member abuts against the step surface.

5. A steel structure unit according to claim 2, characterized in that: On the same structural plate, a first limiting groove is provided along the length direction of the first clamping member on a side away from the second clamping member, and a second limiting groove is provided along the length direction of the second clamping member on a side away from the first clamping member; In two adjacent structural plates, the first limiting groove and the second limiting groove are enclosed to form a fixing groove, and a butt joint connected to the fixing groove is formed between the two adjacent structural plates, and the width of the butt joint is smaller than the width of the fixing groove.

6. A steel structure unit according to claim 5, characterized in that: A plurality of decorative panels are laid on a side of the structural panel away from the purlin, and the plurality of decorative panels are arranged along the length direction of the purlin. A clamping structure clamped with the clamping groove is provided at the bottom of the decorative panel.

7. A steel structure unit according to claim 6, characterized in that: The clamping structure includes semi-limiting strips arranged at both ends of the decorative plate in the width direction, and a plurality of limiting strips are arranged between the two semi-limiting strips, and the semi-limiting strips and the limiting strips are arranged along the length direction of the decorative plate; The limiting strip comprises a passing portion and a limiting portion from top to bottom, the passing portion is adapted to the butt joint, and the limiting portion is adapted to the fixing groove; The two mutually adjacent semi-limiting strips of the two adjacent decorative panels are clamped in the same clamping groove, and the two semi-limiting strips can be combined to form a whole limiting strip with the same structure as the limiting strip.

8. A steel structure unit according to claim 1, characterized in that: The width of the purlin is equal to or greater than the diagonal width of the cross section of the second square steel tube; The spacing between two adjacent installation grooves is equal to a multiple of the diagonal width of the cross section of the second square steel tube. After the purlin is connected to the second square steel tube, the installation grooves near the two ends of the purlin in the length direction are flush with the end faces of the diagonal width direction of the second square steel tube.

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