Square tube connection structure

Abstract

To solve the problems that since conventional frames are manufactured into an integrated type, manufacturing and assembly are difficult and require assembly techniques, that in the case of the integrated type, since it is manufactured as an integrated unit, transportation and loading costs are high, and the size of a loading entrance is limited, that when manufacturing the integrated type in a factory, the width and height of a manufacturing factory are required, and the integrated type must be manufactured while being rotated in the factory, and that since vertical welding is used, a specialist in welding technology is required.SOLUTION: Using bidirectional or multi-directional steel connection square pipes, steel plates, and steel bolts as joints, square steel pipes are connected in the same shape as the joint in two or multiple directions with steel pipes, steel plates, or steel bolts and nuts in a detachable manner.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a connection structure for square pipes that can be freely connected and disconnected. [Background technology]

[0002] Conventional stands are manufactured as a single unit, making assembly difficult and requiring assembly skills. Conventionally, assembly was carried out at the assembly site by a specialist, and not something that anyone could assemble. In the case of one-piece units, the cost of transportation and delivery is high because they are manufactured as a single unit during the manufacturing process, and an opening of a size appropriate to the product is required, which places restrictions on the size of the entrance. When one-piece units are manufactured in a factory, the factory requires space and height, and the unit must be rotated within the factory for manufacturing. In addition, since vertical welding and other techniques are used, specialized welding technicians (welders with JIS-Z-3400 A-1V A-1V A-1O or higher qualifications) are required. When fabricating on-site in a local factory, it is possible to create the desired structure, but because vertical welding and other techniques are used, specialized welding technicians (welders with JIS-Z-3400 A-1V A-1V A-1O or higher) are required. In addition, the use of open flames in welding and other processes carries the risk of fire, and site management is difficult, with limited working time including safety management, fire management after work is completed, and curing. Dismantling also requires specialized techniques such as gas cutting, which requires the use of engineers, and just like assembly, the use of open flames poses a risk of fire, making on-site management difficult as work time is limited, including safety management, fire management after work is completed, and curing. It is difficult to reuse the materials after dismantling, making it uneconomical and unsuitable from the perspective of the SDGs. There is also a technique that uses a connecting plate (see, for example, Patent Documents 1 and 2). Furthermore, with the assembly method, protrusions often appear on the inside and outside of the structure, making it impossible to create the desired structure. With ready-made products, the options are limited and it can be difficult to find the product you want. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5687132 [Patent Document 2] Patent No. 4281961 Summary of the Invention [Problem to be solved by the invention]

[0004] With conventional frames, the assembly and manufacturing process is difficult because they are made as a single unit during the manufacturing process, and when the single unit is manufactured in a factory, the factory requires space and height, and the frame must be rotated within the factory for assembly. However, this reduces the manufacturing space, and factory manufacturing can be done without using specialized welding techniques, and the area and equipment required for the factory can be relaxed. The use of vertical welding techniques etc. requires specialized welding technicians (welders with JIS-Z-3400 A-1V A-1V A-1O or higher standards), but it will be possible to manufacture the product with just basic welding skills (special training). In the case of one-piece products, the cost of transportation and delivery is high due to the one-piece manufacturing process, and an opening of a size appropriate to the product is required, which meant that there were restrictions on the size of the entrance, but these restrictions on entrances have now been relaxed. When fabricating on-site in a factory, specialized welding technicians are required for vertical welding, etc., and because open flames are often used for welding, etc., on-site management is difficult as work time, including curing, is limited due to concerns about fires, etc. However, on-site assembly work does not use open flames such as welding, and only involves tightening bolts, so on-site management is relaxed. No open flames such as welding are used, and curing and work time are shortened. Dismantling also requires specialized techniques such as gas cutting, which requires the employment of technicians, and assembly is carried out on-site. In the case of fabrication, custom-made products can be produced, but on-site fabrication requires a large work space, and as open flames such as welding are often used, work time, including protection, is limited due to concerns about fires, making on-site management difficult. However, on-site assembly work does not use open flames such as welding, and only involves tightening bolts, so on-site management is relaxed. It is difficult, uneconomical, and unsuitable for the SDGs to reuse disassembled parts, but this method makes it possible to reuse them without processing them. At the same time, it also reduces the amount of space required for product storage. It is difficult to install in existing factories because it requires specialized skills such as vertical welding and gas cutting. Even in new factories, it is difficult to reuse the components if the installation location is changed later due to layout changes, making it uneconomical and unsuitable from the perspective of the SDGs. In the case of assembled structures, protrusions such as bolt heads and splice plates tend to appear on the exterior, which can get in the way when placing objects, but this structure will be designed so that there are no protrusions on the inside or outside of the structure. [Means for solving the problem]

[0005] A structure in which a steel square pipe is connected in two or more directions using a steel connecting square pipe, steel plate, and steel bolt as a joint, and in two or more directions using the same type of joint, steel pipe, steel plate, steel bolt, and nut means for detachable connection. A connection structure that allows for free attachment and detachment in two or more directions, in which a steel square pipe, steel plate, and steel bolt are inserted into a steel connecting square pipe, crossing the steel plate, and then fastening the steel plate by fitting steel bolts and nuts into the steel connecting square pipe. Steel connecting square pipes, steel plates and steel bolts are used as connecting hardware. [Effects of the Invention]

[0006] Enable reuse in terms of the SDGs. The orthogonal bodies are connected to each other with an iron connecting pipe and mounting plate, and the connecting plate is joined to the cross bottle. It is easy to process and does not require specialized skills. In addition, the connection method is simple, so anyone can assemble it without specialized skills.The assembly method makes it compact, making it easy to store and requiring little storage space. Because it is an assembly type, it can be put together compactly, making it easier to transport and install, and entrance restrictions are relaxed, allowing it to be assembled on-site, reducing transportation and installation costs. No open flames such as welding or gas cutting are used during on-site installation and disassembly, so there is no risk of fire, assembly time can be shortened, and on-site management is easier. Since no welding or gas cutting is used, anyone can easily assemble and disassemble it without the need for an engineer. Since there are no protrusions such as plates or bolts on the outside or inside, the finishing of the walls and ceiling surfaces can be freely decided, and windows and other fittings can be installed, allowing for a free design that also allows for the creation of airtight rooms. By using this connection method, a wide variety of assembled racks can be made possible. By examining the components, it becomes possible to consider space. By using commonly available steel materials, plates, and bolts, delivery times can be shortened. Because it is compact, it requires little storage space and can be prepared in advance to suit the factory. Enable reuse in terms of the SDGs. It can be used as a framework for simple temporary facilities such as toilets and bathtubs during disasters. It is easy to process and assemble, so it can be used as the framework for simple temporary structures. It is easy to assemble, so you can create the basic structure of a home workspace or teleworkspace within your home. It can be used as a simple temporary structure such as a storage shed or rest area in agricultural fields or rice paddies, or as a tent frame for outdoor activities such as fishing or camping. The assembly method allows for a compact design. It becomes easier to change the layout of factories, etc. It is compact and requires little storage space, so it can be prepared in advance. Since it uses ready-made steel materials, etc., the materials are easy to obtain and can be applied in a variety of ways. It can also be used to create the base for small items such as desks. The wide range of production and flexibility allows for application in a variety of forms. [Brief explanation of the drawings]

[0007] [Figure 1] This is a basic diagram of a two-way connection. [Figure 2] This is a basic diagram of a three-way connection. [Figure 3] This is a drawing showing each component and its installation method. [Figure 4] 1 is a diagram illustrating an embodiment of the present invention. [Figure 5] 10 is a photograph of a prototype of a three-way connection embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0008] Enable reuse in terms of the SDGs. It can be used as a framework for simple temporary facilities such as toilets and bathtubs during disasters. It is easy to process and assemble, so it can be used as the framework for simple temporary structures. It can be used as a simple temporary structure such as a storage shed or rest area in agricultural fields or rice paddies, or as a tent frame for outdoor activities such as fishing or camping. It becomes easier to change the layout of factories, etc. It is compact and requires little storage space, so it can be prepared in advance. Since it uses ready-made steel materials, etc., the materials are easy to obtain and can be applied in a variety of ways. It can also be used to create the base for small items such as desks. The flexible design allows installation in places with steps. Anyone can do the basic design. Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

[0009] The two-way assembly method will be described with reference to FIG. Materials used S-5001: Main pipe 1 □2.3x50x50(mm) S-5011: Main pipe 2 □1.6x50x50(mm) S-4501: Connection pipe □2.3x45x45(mm) P-01: Perforated mounting plate 1 PLt=4.5(mm) P-02: Perforated mounting plate 2 PLt=4.5(mm) B-01: Mounting bolt M10 L-25 (mm) The two-way assembly method is to weld the connecting pipe of S-4501 to the main pipe 1 of S-5001 at a right angle, and then attach and join the perforated mounting plate 1 of P-01 to the main pipe 1 of S-5001 at a right angle with the side of the plate as the pipe core by welding. The perforated mounting plate 2 of P-02 is attached and joined to the main pipe 2 of S-5011 by welding so that the side of the plate is perpendicular to the pipe core. The thickness of the main pipe 2 is 1.6 mm, and the inside dimension of the main pipe 2 is 46.8 mm, which is larger than the 45.0 mm of the connecting pipe shape, and the main pipe 2 can be inserted into the connecting pipe with a 1.8 mm clear. Insert the main pipe 2 of S-5011 into the connecting pipe part of the S-4501 of the main pipe 1 of S-5001, cross-connect the perforated mounting plate 1 of P-01 and the perforated mounting plate 2 of P02, insert the mounting bolt of B-01 and tighten the connection. Install the perforated mounting plate so that the center of the holes is 55mm both vertically and horizontally from the connection position of the main pipe, maintaining perpendicularity. Perforated mounting plate 1 is attached to main pipe 1, and perforated mounting plate 2 is attached to main pipe 2, with the pipe core serving as the plate surface, so that they intersect, maintaining perpendicularity between the pipes. By using connecting pipes and perforated mounting plates, perpendicularity can be maintained with two different construction methods.

[0010] The assembly method in three directions is to weld S-4502 and S-4503 to the main pipe of S-5002, and then weld P-03 and P-04 to the side of the plate as the pipe core. P-05 and P-07 are welded to S-5012 with the side of the plate as the pipe core. P-06 and P-08 are welded to S-5013 with the side of the plate as the pipe core. Insert S-012 into the S-4502 part of S-5002, cross-connect P-03 and P05, then insert B-02 and tighten to connect. Insert S-013 into the S-4503 part of S-5002, cross-connect P-04 and P06, then insert B-03 and tighten. At the same time, cross-connect P-07 attached to S-5012 and P-08 attached to S-5013, insert B-04 and tighten the connection.

[0011] During the manufacturing process, the connecting plate is welded to intersect with the main pipe. At the same time, the connecting pipe is welded to the main pipe. After delivery to the site, the main body is joined at the installation location using the mounting pipe and mounting plate attached to the main body pipe. The mounting bolts are inserted into the holes in the mounting plate and tightened. [Explanation of symbols]

[0012] S-5001: Main pipe 1 with S-4501 P-01 attached S-5002: Main pipe 3 with S-4502, S-4503, P03 and P04 attached S-5011: Main pipe 2 with P-02 attached S-5012: Main pipe 4 with P-05 and P-07 attached S-5013: Main pipe 5 with P-06 and P-08 attached S-4501: Connection pipe 1 S-4502: Connection pipe 2 S-4503: Connection pipe 3 P-01: Perforated mounting plate 1 P-02: Perforated mounting plate 2 P-03: Perforated mounting plate 3 P-04: Perforated mounting plate 4 P-05: Perforated mounting plate 5 P-06: Perforated mounting plate B-01: Mounting bolt 1 B-02: Mounting bolt 2 B-03: Mounting bolt 3 B-04: Mounting bolt 4

Claims

1. A connection structure that connects a two-way connection link A and a two-way connection link B at a right angle, The two-way connecting body A is composed of a main square steel pipe A, a connecting square steel pipe A, and a perforated mounting plate A, and is configured by connecting the connecting square steel pipe A at a right angle to one side of the main square steel pipe A, and connecting the perforated mounting plate A so as to be parallel to the perpendicular plane formed by the main square steel pipe A and the connecting square steel pipe A. The two-way connecting body B is constructed by joining a perforated mounting plate B to one side of the connecting square steel pipe B in parallel with the longitudinal direction of the connecting square steel pipe B, A connecting structure in which a connecting square steel pipe B is inserted into a connecting square steel pipe A and a perforated mounting plate A and a perforated mounting plate B are connected to each other with bolts, thereby connecting a two-way connecting body A and a two-way connecting body B at a right angle.

2. A connection structure in which a three-way connection link A, a three-way connection link B, and a three-way connection continuum C are connected at right angles to each other, The three-way connection link A is composed of a main square steel pipe A, a connecting square steel pipe A1, a connecting square steel pipe A2, a perforated mounting plate A1, and a perforated mounting plate A2, and is configured by connecting the connecting square steel pipe A1 and the connecting square steel pipe A2 at right angles to adjacent side surfaces of the main square steel pipe A, and connecting the perforated mounting plate A1 and the perforated mounting plate A2 to the side surfaces so as to be parallel to the longitudinal direction of the main square steel pipe A, The three-way connection link B is composed of a connecting square steel pipe B, a perforated mounting plate B1, and a perforated mounting plate B2, and is configured by joining the perforated mounting plate B1 and the perforated mounting plate B2 to adjacent side surfaces of the connecting square steel pipe B in parallel to the longitudinal direction of the connecting square steel pipe B, The three-way connection link C is composed of a connecting square steel pipe C, a perforated mounting plate C1, and a perforated mounting plate C2, and is configured by joining the perforated mounting plate C1 and the perforated mounting plate C2 to adjacent side surfaces of the connecting square steel pipe C in parallel with the longitudinal direction of the connecting square steel pipe C, A connecting structure in which three-way connecting body A and three-way connecting body B are connected at a right angle by inserting connecting square steel pipe A1 into connecting square steel pipe B and bolting perforated mounting plate A1 to perforated mounting plate B1 together, and three-way connecting body A and three-way connecting body C are connected at a right angle by inserting connecting square steel pipe A2 into connecting square steel pipe C and bolting perforated mounting plate A2 to perforated mounting plate C1 together, and further bolting perforated mounting plate B2 of three-way connecting body B to perforated mounting plate C2 of three-way connecting continuum C together, thereby connecting three-way connecting body A, three-way connecting body B and three-way connecting continuum C at a right angle.

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