CN217518089U - Three-dimensional latticed structural unit of square pipe support and special square pipe joint thereof - Google Patents
Three-dimensional latticed structural unit of square pipe support and special square pipe joint thereof Download PDFInfo
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- CN217518089U CN217518089U CN202221461451.1U CN202221461451U CN217518089U CN 217518089 U CN217518089 U CN 217518089U CN 202221461451 U CN202221461451 U CN 202221461451U CN 217518089 U CN217518089 U CN 217518089U
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Abstract
The utility model provides a three-dimensional grid structure unit of a square pipe bracket and a special square pipe joint thereof, which relate to the technical field of fastening or fixing members and comprise at least three layers of rectangular horizontal members, wherein each layer of rectangular horizontal member comprises at least four horizontal square steel pipes (1) with the same cross section shape and size, and also comprises a frame formed by taking four vertical square steel pipes (2) as vertex support columns and a plurality of vertical square steel pipes (2) as connecting columns; according to the method, the standard square steel pipes are connected into the three-dimensional latticed structural unit through the special joints, so that the standard support can be quickly assembled when being installed, and the efficiency is improved; the special joint structure who adopts is simple, the size is reasonable, and intensity is high, and it is convenient quick to use to with the combination of square steel pipe closely, accurate, through setting up multilevel structure, can not appear becoming flexible or rocking after the at utmost assurance square steel pipe installation, factor of safety is high.
Description
Technical Field
The utility model relates to a fastening or fixed component technical field, concretely relates to square pipe support's three-dimensional latticed constitutional unit and special square pipe head thereof.
Background
The square steel pipe is a common pipe, the cross section of the common pipe is rectangular or square, the common pipe is respectively called as a square steel pipe and a rectangular steel pipe, and the common square steel pipe has wide application. In the building field, a square steel pipe is often used as a bearing and supporting member, and a plurality of square steel pipes are assembled and connected to form an integral bearing and supporting structure; in the industrial product manufacturing process, it is often necessary to connect two or more square pipes.
At present, one of the common connecting methods of square steel pipes is welding, namely a plurality of square tubular beams are welded together, but a plurality of components are welded together, which is time-consuming and labor-consuming, and the components are fixedly connected with each other and can not be disassembled, and when the square tubular beams are damaged or need to be replaced by square tubular beams of other models, the square tubular beams are not easy to replace. The other type is to adopt a specific square pipe joint for splicing, but the existing square pipe joints have various types and specifications, such as CN 113389782A-a square pipe connecting structure, CN 114087265A-a square pipe joint, CN 113513081A-a square pipe connecting head structure and a supporting mechanism, CN 109025245A-a square pipe scaffold joint and a square pipe scaffold, and the disclosed joints have the characteristics and are different from each other; however, both the square steel pipe and the rectangular steel pipe are general products specified by the national standard, and the problems of large fit clearance, low precision, low strength and low universality in the actual use process are easily caused by excessively complicated joint types in the market.
Disclosure of Invention
For solving the problem that exists among the background art, realize the standardization and the scale production of general square steel pipe joint, guarantee in the use square steel pipe accurate with the cooperation that connects, intensity is enough, convenient to use, the utility model provides a square pipe support's three-dimensional latticed constitutional unit and special square pipe joint thereof.
In order to achieve the above object, the present invention adopts the following technical solution, a three-dimensional grid structure unit of a square tube support, characterized in that it comprises at least three layers of rectangular horizontal members, each layer of rectangular horizontal member is composed of at least four horizontal square steel tubes 1 with the same cross-sectional shape and size, and further comprises a frame composed of four vertical square steel tubes 2 as vertex support columns, and a plurality of vertical square steel tubes 2 as connecting columns; the rectangular horizontal member at the topmost layer is connected with the four vertex supporting columns through a first connector 3; the second layer and the third layer of rectangular horizontal members below are connected with the four vertex supporting columns through a second connector 4; the lower ends of the four vertex supporting columns are respectively connected with a third joint 5; in addition, from top to bottom, first layer, second floor and third layer rectangle horizontal component link to each other with the spliced pole respectively through No. four joint 6, No. five joint 7 and No. six joint 8.
All the joints I to VI are provided with a bearing section 9 for accommodating a square steel pipe, the outer surface bending part of the cross section of the bearing section 9 is provided with an outer circular arc chamfer, the top surface of the bearing section 9 is longitudinally provided with a rectangular hole 10, and the rectangular hole 10 penetrates through the whole bearing section 9; an inner arc chamfer is arranged at the bending part of the cross section of the rectangular hole 10, and the radius of the inner arc chamfer is larger than that of the outer arc chamfer; in addition, a plurality of circular through holes 11 with the axes perpendicular to the rectangular holes 10 are formed in the side face of the bearing section 9, spiral threads are formed in the inner walls of the circular through holes 11, and the square steel pipes inserted into the rectangular holes 10 are fixed by installing locking bolts 12.
The first connector 3 comprises three bearing sections 9 which are vertically connected with each other and are respectively positioned in the forward direction of an X coordinate axis, the forward direction of a Y coordinate axis and the reverse direction of a Z coordinate axis, and rectangular holes 10 which are vertical to each other and are communicated are formed in the end faces of the three bearing sections 9; according to the orientation in the working state, the positions, close to the ports, on the lower side surfaces of the two bearing sections 9 in the X coordinate axis direction and the Y coordinate axis direction are provided with circular through holes 11 with spiral threads; the inner side surfaces of the bearing sections 9 on the opposite Z coordinate axes are provided with the same circular through holes 11, the vertical projection positions of the rectangular holes 10 on the Z coordinate axes on the side walls of the other two bearing sections 9 are sealed, and the end parts of the vertical square steel pipes 2 are propped against and fixed at the positions.
The integral structure of the second connector 4 is similar to that of the first connector 3, the second connector comprises three bearing sections 9 which are vertically connected with each other and are respectively positioned in the forward direction of an X coordinate axis, the forward direction of a Y coordinate axis and the reverse direction of a Z coordinate axis, and rectangular holes 10 which are vertical to each other and are communicated are formed in the end faces of the three bearing sections 9; according to the orientation in the working state, the positions, close to the ports, on the lower side surfaces of the two bearing sections 9 in the X coordinate axis direction and the Y coordinate axis direction are provided with circular through holes 11 with spiral threads; the same circular through hole 11 is formed in the inner side face of the bearing section 9 on the Z coordinate axis in the reverse direction, the vertical projection position of the rectangular hole 10 on the Z coordinate axis on the side walls of the other two bearing sections 9 is provided with an opening, and the vertical square steel pipe 2 penetrates through the rectangular hole 10 and penetrates out of the opening position.
The third connector 5 comprises an oval base 13 fixed with the bearing section 9, the bottom surface of the oval base 13 is smooth and provided with anti-skidding concave-convex grooves, and the top surface is in arc transition and fixed with the bearing section 9 containing a square steel pipe at the geometric center of the top surface.
The fourth joint 6 is of an inverted structure in a shape like a Chinese character pin and comprises three bearing sections 9 which are positioned on the same plane and respectively point to different coordinate axes, namely an X-axis forward direction, an X-axis reverse direction and a Y-axis reverse direction; the vertical projection positions of the rectangular holes 10 on the bearing sections 9 with the opposite Y-axes on the side walls of the other two bearing sections 9 are sealed, and the ends of the vertical square steel pipes 2 are propped against and fixed at the positions.
The five-joint 7 is a three-section straight cylinder type, two horizontal bearing sections 9 of the five-joint 7 penetrate through each other to be sleeved with horizontal square steel pipes 1 on the left side and the right side, opposite square through holes are formed in the middle positions of the upper side wall and the lower side wall of each of the two horizontal bearing sections 9 to accommodate the vertical square steel pipes 2 to penetrate through, the upper end of each of the vertical square steel pipes is connected with the four-joint 6, the lower end of each of the vertical square steel pipes is connected with the six-joint 8, round through holes 11 are formed in the side wall of the front face of the five-joint 7 according to the distance of trisection, and locking bolts 12 are respectively installed to fix the square steel pipes in the left side, the right side and the vertical direction.
The six-joint 8 is in a two-section straight cylinder shape, a bearing section 9 is arranged in the vertical direction, and through holes are formed in the left side wall and the right side wall of the bearing section 9 in the horizontal direction so as to accommodate the horizontal square steel pipe 1 of the third layer of rectangular horizontal component to penetrate through.
Preferably, the length of the outer side of the cross section of the rectangular hole 10 formed in the bearing section 9 of the first to sixth joints 8 is A and B, wherein A is more than or equal to B, and B is more than or equal to 35mm and less than or equal to A and less than or equal to 62 mm.
Preferably, the port positions of the inner wall of the bearing section 9 on the first to sixth joints 8 are all provided with closed annular protrusions 14 pointing to the inside of the rectangular hole 10, so that the inserted square steel pipe is fixed, and the shaking of the steel pipe is eliminated.
Preferably, the oval base 13 of the third joint 5 is provided with a water outlet 15, and the size of the water outlet 15 is smaller than the size of the inner hole of the vertical square steel pipe 2.
Preferably, the bottom of the rectangular hole 10 of each receiving section 9 of the first to sixth joints 8 is respectively provided with a fastener 16 of a square steel pipe, the fastener 16 is of a hollow quadrangular frustum pyramid structure, four side edges of the lower end of the fastener are respectively fixed on four inner walls of the rectangular hole 10, an upper platform of the fastener 16 is square, the area of the upper platform is smaller than the cross-sectional area of an inner hole of the square steel pipe, and the square steel pipe can be conveniently sleeved in the fastener; the upper platform of the fastener 16 is connected with the lower end in an inclined surface transition way, the section area is gradually increased, the section area of the lowermost end is consistent with the section area of the inner hole of the square steel pipe, and the height of the fastener 16 is 1/3-1/2 of the length of the bearing section 9.
Advantageous effects
According to the method, the standard square steel pipes are connected into the three-dimensional latticed structural unit through the special joints, so that the standard support can be quickly assembled when being installed, and the efficiency is improved; in this application the constitutional unit in, the special joint simple structure, the size that adopt are reasonable, intensity is high, and it is convenient quick to use to with square steel pipe's combination closely, accurate, through setting up multilevel structure, including cyclic annular arch 14, circular through-hole 11, fastener 16 in addition, can not appear becoming flexible or rocking after the at utmost guarantees square steel pipe installation, factor of safety is high.
Drawings
Fig. 1 is a schematic structural diagram of a three-dimensional grid-like structural unit according to the present application.
Fig. 2 is a schematic structural diagram of the first connector.
Fig. 3 is a cut-away view of the first joint.
Fig. 4 is a schematic structural diagram of the second connector.
FIG. 5 is a cut-away view of the second joint.
Fig. 6 is a schematic structural diagram of the third joint.
Fig. 7 is a cutaway view of the third joint.
Fig. 8 is a schematic structural diagram of the fourth joint.
Fig. 9 is a cutaway view of the four-point joint.
Fig. 10 is a schematic structural view of the fifth joint.
Fig. 11 is a sectional view of the fifth joint.
Fig. 12 is a schematic structural view of the No. six joint.
Fig. 13 is a sectional view of the No. six joint.
In the figure, a horizontal square steel pipe 1, a vertical square steel pipe 2, a first joint 3, a second joint 4, a third joint 5, a fourth joint 6, a fifth joint 7, a sixth joint 8, a bearing section 9, a rectangular hole 10, a circular through hole 11, a locking bolt 12, an oval base 13, an annular bulge 14, a water outlet 15 and a fastener 16.
Detailed Description
The technical scheme of the application is further explained by combining the drawings in the specification.
Example 1
As shown in fig. 1, 2, 4, 6, 8, 10, and 12, a three-dimensional grid-shaped structural unit of a square tube support is characterized by comprising at least three layers of rectangular horizontal members, each layer of rectangular horizontal member is composed of at least four horizontal square steel tubes 1 with the same cross section shape and size, and further comprises a frame composed of four vertical square steel tubes 2 as vertex support columns, and a plurality of vertical square steel tubes 2 as connecting columns; the rectangular horizontal member at the topmost layer is connected with the four vertex supporting columns through a first connector 3; the second layer and the third layer of rectangular horizontal members below are connected with the four vertex supporting columns through a second connector 4; the lower ends of the four vertex supporting columns are respectively connected with a third joint 5; in addition, from top to bottom, first layer, second floor and third layer rectangle horizontal component link to each other with the spliced pole respectively through No. four joint 6, No. five joint 7 and No. six joint 8.
All the connectors from the first connector to the sixth connector are provided with a bearing section 9 for accommodating a square steel pipe, the outer surface bending part of the cross section of the bearing section 9 is provided with an outer circular arc chamfer, the top surface of the bearing section 9 is longitudinally provided with a rectangular hole 10, and the rectangular hole 10 penetrates through the whole bearing section 9; an inner arc chamfer is arranged at the bending part of the cross section of the rectangular hole 10, and the radius of the inner arc chamfer is larger than that of the outer arc chamfer; in addition, a plurality of circular through holes 11 with the axes perpendicular to the rectangular holes 10 are formed in the side face of the bearing section 9, spiral threads are arranged on the inner walls of the circular through holes 11, and locking bolts 12 are installed to fix the square steel pipes inserted into the rectangular holes 10.
The first connector 3 comprises three bearing sections 9 which are vertically connected with each other and are respectively positioned in the forward direction of an X coordinate axis, the forward direction of a Y coordinate axis and the reverse direction of a Z coordinate axis, and rectangular holes 10 which are vertical to each other and are communicated are formed in the end faces of the three bearing sections 9; according to the position of the bearing in the working state, the parts, close to the ports, on the lower side surfaces of the two bearing sections 9 in the directions of the X coordinate axis and the Y coordinate axis are provided with circular through holes 11 with spiral threads; the inner side surfaces of the bearing sections 9 on the opposite Z coordinate axes are provided with the same circular through holes 11, the vertical projection positions of the rectangular holes 10 on the Z coordinate axes on the side walls of the other two bearing sections 9 are sealed, and the end parts of the vertical square steel pipes 2 are propped against and fixed at the positions.
The integral structure of the second connector 4 is similar to that of the first connector 3, the second connector comprises three bearing sections 9 which are mutually vertically connected and are respectively positioned in the forward direction of an X coordinate axis, a Y coordinate axis and the reverse direction of a Z coordinate axis, and rectangular holes 10 which are mutually vertical and communicated are formed in the end faces of the three bearing sections 9; according to the position of the bearing in the working state, the parts, close to the ports, on the lower side surfaces of the two bearing sections 9 in the directions of the X coordinate axis and the Y coordinate axis are provided with circular through holes 11 with spiral threads; the same circular through holes 11 are formed in the inner side faces of the bearing sections 9 on the Z coordinate axis in the reverse direction, the vertical projection positions of the rectangular holes 10 in the Z coordinate axis on the side walls of the other two bearing sections 9 are provided with holes, and the vertical square steel pipe 2 penetrates through the rectangular holes 10 and penetrates out of the holes.
The third connector 5 comprises an oval base 13 fixed with the bearing section 9, the bottom surface of the oval base 13 is smooth and provided with anti-skidding concave-convex grooves, and the top surface is in arc transition and fixed with the bearing section 9 containing a square steel pipe at the geometric center of the top surface.
The fourth joint 6 is of an inverted structure in a shape like a Chinese character pin and comprises three bearing sections 9 which are positioned on the same plane and respectively point to different coordinate axes, namely an X-axis forward direction, an X-axis reverse direction and a Y-axis reverse direction; the vertical projection positions of the rectangular holes 10 on the bearing sections 9 with the opposite Y-axes on the side walls of the other two bearing sections 9 are sealed, and the ends of the vertical square steel pipes 2 are propped against and fixed at the positions.
The fifth joint 7 is a three-section straight cylinder type, two transverse bearing sections 9 of the fifth joint penetrate through each other to be sleeved with horizontal square steel pipes 1 on the left side and the right side, opposite square through holes are formed in the middle positions of the upper side wall and the lower side wall of each transverse bearing section 9 to accommodate vertical square steel pipes 2 to penetrate through, the upper end of each transverse bearing section is connected with the fourth joint 6, the lower end of each transverse bearing section is connected with the sixth joint 8, circular through holes 11 are formed in the front side wall of the fifth joint 7 according to trisection distances, and locking bolts 12 are installed to fix the square steel pipes in the left side, the right side and the vertical direction respectively.
The six-joint 8 is in a two-section straight-tube shape, a bearing section 9 is arranged in the vertical direction, and through holes are formed in the left side wall and the right side wall of the bearing section 9 in the horizontal direction so as to accommodate the horizontal square steel tube 1 of the third layer of rectangular horizontal component to penetrate through.
The section of a rectangular hole 108 formed in the top surface of the bearing section 9 is rectangular, the length of the outer side is 60mm, and the width of the outer side is 50 mm; the overall height of the receiving section 9 and the oval base 136 on the third joint 5 is 150 mm.
Example 2
As shown in fig. 1, 3, 5, 7, 9, 11 and 13, the quadrangular prism structural unit of the square tube support of the present embodiment is substantially the same as that of embodiment 1, except that: the port positions of the inner wall of the bearing section 9 on the first to sixth joints 8 are all provided with closed annular protrusions 14 pointing to the inside of the rectangular hole 10, the inserted square steel pipe is fixed, and shaking of the steel pipe is eliminated.
And a water outlet 15 is formed in the oval base 13 of the third joint 5, and the size of the water outlet 15 is smaller than the size of the inner hole of the vertical square steel pipe 2.
In addition, fasteners 16 of square steel pipes are respectively arranged at the bottoms of the rectangular holes 10 of the bearing sections 9 of the first to sixth joints 8, the fasteners 16 are of hollow quadrangular frustum pyramid structures, four side edges of the lower end of each fastener are respectively fixed on four inner walls of the rectangular holes 10, an upper platform of each fastener 16 is square, the area of each upper platform is smaller than the cross-sectional area of an inner hole of each square steel pipe, and the square steel pipes can be conveniently sleeved in the square steel pipes; the upper platform of the fastener 16 is connected with the lower end in an inclined surface transition way, the section area is gradually increased, the section area of the lowermost end is consistent with the section area of the inner hole of the square steel pipe, and the height of the fastener 16 is 1/2 of the length of the bearing section 9.
Claims (10)
1. A three-dimensional latticed structural unit of a square tube bracket is characterized by comprising at least three layers of rectangular horizontal members, wherein each layer of rectangular horizontal member consists of at least four horizontal square steel tubes (1) with the same cross section shape and size, a frame consisting of four vertical square steel tubes (2) serving as vertex supporting columns and a plurality of vertical square steel tubes (2) serving as connecting columns; the rectangular horizontal member at the topmost layer is connected with the four vertex supporting columns through a first connector (3); the second layer and the third layer of rectangular horizontal members below are connected with the four vertex supporting columns through a second connector (4); the lower end parts of the four vertex supporting columns are respectively connected with a third joint (5); in addition, the first layer rectangular horizontal component, the second layer rectangular horizontal component and the third layer rectangular horizontal component are respectively connected with the connecting columns through a fourth joint (6), a fifth joint (7) and a sixth joint (8) from top to bottom;
all the joints I to VI are provided with bearing sections (9) for accommodating square steel pipes, the outer surface bending part of the cross section of each bearing section (9) is provided with an outer circular arc chamfer, the top surface of each bearing section (9) is longitudinally provided with a rectangular hole (10), and the rectangular hole (10) penetrates through the whole bearing section (9); an inner arc chamfer is arranged at the bending part of the cross section of the rectangular hole (10), and the radius of the inner arc chamfer is larger than that of the outer arc chamfer; in addition, a plurality of circular through holes (11) with the axes perpendicular to the rectangular holes (10) are formed in the side face of the bearing section (9), spiral threads are arranged on the inner wall of each circular through hole (11), and a locking bolt (12) is installed to fix the square steel pipe inserted into each rectangular hole (10).
2. The three-dimensional latticed structural unit of the square tube support according to claim 1, wherein the first joint (3) comprises three receiving sections (9) which are connected with each other vertically and are respectively positioned on the positive direction of an X coordinate axis and a Y coordinate axis and the reverse direction of a Z coordinate axis, and rectangular holes (10) which are perpendicular to each other and are communicated are formed in the end surfaces of the three receiving sections (9); according to the orientation in the working state, the positions, close to the ports, on the lower side surfaces of the two bearing sections (9) in the X coordinate axis direction and the Y coordinate axis direction are provided with circular through holes (11) with spiral threads; the inner side surfaces of the bearing sections (9) on the Z coordinate axis in the reverse direction are provided with the same circular through holes (11), the vertical projection positions of the rectangular holes (10) on the Z coordinate axis on the side walls of the other two bearing sections (9) are sealed, and the end parts of the vertical square steel pipes (2) are propped against and fixed at the positions.
3. The three-dimensional latticed structural unit of the square tube support according to claim 1, wherein the integral structure of the second joint (4) is similar to that of the first joint (3), and comprises three bearing sections (9) which are vertically connected with each other and are respectively positioned in the forward direction of an X coordinate axis and a Y coordinate axis and the reverse direction of a Z coordinate axis, and rectangular holes (10) which are vertical to each other and are communicated are formed in the end faces of the three bearing sections (9); according to the orientation in the working state, the positions, close to the ports, on the lower side surfaces of the two bearing sections (9) in the X coordinate axis direction and the Y coordinate axis direction are provided with circular through holes (11) with spiral threads; the same circular through hole (11) is formed in the inner side face of the bearing section (9) on the Z coordinate axis in the reverse direction, the vertical projection positions of the rectangular holes (10) on the Z coordinate axis on the side walls of the other two bearing sections (9) are provided with open holes, and the vertical square steel pipe (2) penetrates through the rectangular holes (10) and penetrates out of the open holes.
4. The three-dimensional latticed structural unit of the square tube support according to claim 1, wherein the third joint (5) comprises an oval base (13) fixed with the bearing section (9), the bottom surface of the oval base (13) is flat and provided with anti-slip concave-convex grooves, the top surface is in arc transition and fixed with the bearing section (9) for accommodating the square steel tube at the geometric center of the top surface; the oval base (13) is provided with a water outlet (15), and the size of the water outlet (15) is smaller than the size of an inner hole of the vertical square steel pipe (2).
5. The three-dimensional grid-shaped structural unit of the square tube support according to claim 1, wherein the four-joint (6) is of an inverted structure in a shape like the Chinese character pin, and comprises three bearing sections (9) which are positioned on the same plane and respectively point to different coordinate axes, namely an X-axis forward direction, an X-axis reverse direction and a Y-axis reverse direction; the vertical projection positions of the rectangular holes (10) on the bearing sections (9) with the opposite Y-axes on the side walls of the other two bearing sections (9) are sealed, and the end parts of the vertical square steel pipes (2) are propped against and fixed at the positions.
6. The three-dimensional latticed structural unit of a square tube support according to claim 1, wherein the fifth joint (7) is a three-section straight tube type, two horizontal bearing sections (9) of the fifth joint penetrate each other to be sleeved with the horizontal square steel tubes (1) on the left and right sides, opposite square through holes are formed in the middle positions of the upper and lower side walls of the two horizontal bearing sections (9) to accommodate the vertical square steel tubes (2) to pass through, the upper end of the vertical through holes is connected with the fourth joint (6), the lower end of the vertical through holes is connected with the sixth joint (8), circular through holes (11) are formed in the front side wall of the fifth joint (7) according to trisection distances, and locking bolts (12) are respectively installed to fix the square steel tubes on the left and right sides and in the vertical direction.
7. The three-dimensional grid-shaped structural unit of the square pipe support according to claim 1, wherein the six-joint (8) is a two-section straight cylinder, a bearing section (9) is arranged in the vertical direction, and through holes are arranged on the left side wall and the right side wall of the bearing section (9) in the horizontal direction so as to accommodate a horizontal square steel pipe (1) of a third layer of rectangular horizontal component to pass through.
8. The three-dimensional grid-shaped structural unit of the square pipe support according to any one of claims 1 to 7, wherein the length of the outer side of the cross section of the rectangular hole (10) formed in the bearing section (9) of the first to sixth joints (8) is A and B, A is larger than or equal to B, and B is larger than or equal to 35mm and smaller than or equal to 62 mm.
9. The three-dimensional grid-shaped structural unit of the square pipe support according to any one of claims 1 to 7, wherein closed annular protrusions (14) pointing to the inside of the rectangular holes (10) are arranged at the port positions of the inner walls of the bearing sections (9) on the first to sixth joints (8) to fix the inserted square steel pipes.
10. The three-dimensional latticed structural unit of the square pipe support according to any one of claims 1 to 7, wherein fasteners (16) of square steel pipes are respectively arranged at the bottoms of the rectangular holes (10) of the bearing sections (9) of the first to sixth joints (8), the fasteners (16) are of hollow quadrangular frustum structures, four side edges of the lower end of each fastener are respectively fixed on four inner walls of the rectangular holes (10), an upper platform of each fastener (16) is square, the area of each upper platform is smaller than the cross-sectional area of an inner hole of each square steel pipe, and the square steel pipes can be conveniently sleeved; the upper platform of the fastener (16) is connected with the lower end in an inclined surface transition way, the section area is gradually increased, the section area of the lowermost end is consistent with the section area of the inner hole of the square steel pipe, and the height of the fastener (16) is 1/3-1/2 of the length of the bearing section (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221461451.1U CN217518089U (en) | 2022-06-13 | 2022-06-13 | Three-dimensional latticed structural unit of square pipe support and special square pipe joint thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221461451.1U CN217518089U (en) | 2022-06-13 | 2022-06-13 | Three-dimensional latticed structural unit of square pipe support and special square pipe joint thereof |
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| Publication Number | Publication Date |
|---|---|
| CN217518089U true CN217518089U (en) | 2022-09-30 |
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|---|---|---|---|
| CN202221461451.1U Active CN217518089U (en) | 2022-06-13 | 2022-06-13 | Three-dimensional latticed structural unit of square pipe support and special square pipe joint thereof |
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| Country | Link |
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| CN (1) | CN217518089U (en) |
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2022
- 2022-06-13 CN CN202221461451.1U patent/CN217518089U/en active Active
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