Square tube with butt joint structure

By combining flange connections and plug-in structures to connect square tubes, and adding reinforcing ribs on the inside, the problem of low connection efficiency of existing steel pipes is solved, achieving efficient connection and weight reduction.

CN223924157UActive Publication Date: 2026-02-17TIANJIN YIWANGLONG TECHNOLOGY DEVELOPMENT CO LTD
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Patent Information

Application Number
CN202520674179.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-02-17
Estimated Expiration
2035-04-11

AI Technical Summary

Technical Problem

The existing steel pipe connection structure is too simple, resulting in low connection efficiency.

Method used

The square tubes are connected using a combination of flange and plug-in structures, and reinforcing ribs are installed on the inside to enhance strength and stability.

Benefits of technology

The efficiency of square tube connection was improved, and the overall weight was reduced by reinforcing ribs, while the strength and stability were enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of square tubes, in particular to a square tube with a butt joint structure, which comprises a first square tube and a second square tube, one end of the first square tube and one end of the second square tube are respectively provided with a first flange plate and a second flange plate, and one side of the second flange plate is provided with a fastening screw. A fastening nut is arranged on one side of the first flange plate; an annular inserting plate is fixed to the position, located on the inner side of the first flange plate, of one end of the first square pipe, and an annular inserting groove is formed in the position, located on the inner side of the second flange plate, of one end of the second square pipe. According to the novel steel pipe butt joint structure, the two sets of square pipes can be in butt joint in a flange connection mode, the two sets of square pipes can also be in butt joint in an inserted connection mode, butt joint is convenient, and then the butt joint efficiency can be effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of square tube technology, specifically to a square tube with a docking structure. Background Technology

[0002] Square tubes, also known as rectangular tubes, are steel pipes made from strip steel or steel plates through a process of rolling. Steel pipes have high strength and rigidity, and also have good connectivity. They are now widely used in many fields such as construction, machinery manufacturing, and steel structure engineering.

[0003] However, existing steel pipe butt joint structures are limited and can only use a single method to butt square tubes, resulting in low butt joint efficiency. Therefore, we propose a square tube with a butt joint structure. Summary of the Invention

[0004] To address the problems in the existing technology, this utility model provides a square tube with a docking structure. This new steel pipe docking structure can not only connect two sets of square tubes through flange connection, but also connect two sets of square tubes through plug connection, making docking more convenient and thus effectively improving docking efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is a square tube with a docking structure, including a No. 1 square tube and a No. 2 square tube. One end of the No. 1 square tube and the No. 2 square tube are respectively provided with a No. 1 flange and a No. 2 flange. A fastening screw is provided on one side of the No. 2 flange, and a fastening nut is provided on one side of the No. 1 flange.

[0006] One end of the No. 1 square tube is fixed with an annular insertion plate inside the No. 1 flange, and one end of the No. 2 square tube is provided with an annular insertion groove inside the No. 2 flange.

[0007] By adopting the above technical solution, personnel can insert the annular plug plate at one end of square tube No. 1 into the annular plug groove at one end of square tube No. 2, which can initially connect square tube No. 2 and square tube No. 1. The ends of the fastening screws are passed through the bolt holes on flange No. 2 and flange No. 1 in sequence, and the fastening nuts are put on the outer periphery of the ends of the fastening screws, so that square tube No. 1 and square tube No. 2 can be fastened together.

[0008] The reinforcing ribs can enhance the strength and stability of square tubes No. 1 and No. 2 on the inside, and can effectively reduce the overall weight of square tubes No. 1 and No. 2.

[0009] Specifically, both the No. 1 square tube and the No. 2 square tube have hollow cavities inside, and reinforcing ribs are embedded inside the hollow cavities.

[0010] By adopting the above technical solution, hollow cavities are opened on the inner side of square tube No. 1 and square tube No. 2, which is beneficial to embed reinforcing ribs on the inner side of square tube No. 1 and square tube No. 2.

[0011] Specifically, the other end of the first square tube is connected to a first interface, and the inner side of the first interface is provided with an internal thread.

[0012] Specifically, the other end of the second square tube is connected to a second interface, and the outer side of the second interface is provided with external threads.

[0013] By adopting the above technical solution, using interface 1, interface 2, external thread and internal thread, personnel can connect square tubes 1 and 2 with other square tubes.

[0014] Specifically, both flange number one and flange number two have bolt holes inside.

[0015] Specifically, the reinforcing rib is made of aluminum alloy.

[0016] The beneficial effects of this utility model are:

[0017] The present invention describes a square tube with a docking structure. Personnel can insert the annular connector plate at one end of square tube number one into the annular connector groove at one end of square tube number two, thus initially docking square tube number two with square tube number one. The ends of the fastening screws are then passed sequentially through the bolt holes on flange number two and flange number one, and the fastening nuts are fitted around the ends of the fastening screws, thus securing square tube number one and square tube number two together.

[0018] The square tube with a butt joint structure described in this utility model has reinforcing ribs that can enhance the strength and stability of square tubes No. 1 and No. 2 on the inner side, and can effectively reduce the overall weight of square tubes No. 1 and No. 2. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the docking structure of this utility model;

[0022] Figure 3 This is the left view of the present invention;

[0023] Figure 4 This is a schematic diagram of the reinforcing rib structure of this utility model.

[0024] In the diagram: 1. Square tube No. 1; 2. Square tube No. 2; 3. Flange No. 1; 4. Flange No. 2; 5. Annular plug plate; 6. Annular plug groove; 7. Fastening screw; 8. Fastening nut; 9. Bolt hole; 10. External thread; 11. Hollow cavity; 12. Reinforcing rib; 13. Interface No. 1; 14. Interface No. 2; 15. Internal thread. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] To improve docking efficiency, such as Figure 1-4 As shown, the square tube with a butt joint structure of the present invention includes a first square tube 1 and a second square tube 2. One end of the first square tube 1 and the second square tube 2 are respectively provided with a first flange 3 and a second flange 4. A fastening screw 7 is provided on one side of the second flange 4, and a fastening nut 8 is provided on one side of the first flange 3.

[0027] One end of the first square tube 1 is fixed with an annular insertion plate 5 inside the first flange 3, and one end of the second square tube 2 is provided with an annular insertion groove 6 inside the second flange 4.

[0028] In use, the operator inserts the annular plug plate 5 at one end of square tube 1 into the annular plug groove 6 at one end of square tube 2, which can initially connect square tube 2 and square tube 1. The end of the fastening screw 7 is passed through the bolt hole 9 on flange 4 and flange 3 in sequence, and the fastening nut 8 is placed on the outside of the end of the fastening screw 7, which can then fasten the connection between square tube 1 and square tube 2.

[0029] The reinforcing rib 12 can enhance the strength and stability of square tube 1 and square tube 2 on the inner side, and can effectively reduce the overall weight of square tube 1 and square tube 2.

[0030] For example, such as Figure 4 As shown, both the No. 1 square tube 1 and the No. 2 square tube 2 have hollow cavities 11 inside, and reinforcing ribs 12 are embedded inside the hollow cavities 11.

[0031] When in use, a hollow cavity 11 is opened on the inner side of square tube 1 and square tube 2, which is conducive to embedding the reinforcing rib 12 on the inner side of square tube 1 and square tube 2.

[0032] For example, such as Figure 1 , Figure 2 , Figure 3As shown, the other end of the first square tube 1 is connected to a first interface 13, and the inner side of the first interface 13 is provided with an internal thread 15.

[0033] Delete when in use.

[0034] For example, such as Figure 1 , Figure 2 , Figure 3 As shown, the other end of the second square tube 2 is connected to the second interface 14, and the outer side of the second interface 14 is provided with an external thread 10.

[0035] In use, by utilizing interface 13, interface 14, external thread 10, and internal thread 15, personnel can connect square tube 1 and square tube 2 to other square tubes.

[0036] For example, such as Figure 2 As shown, bolt holes 9 are provided inside both flange 3 and flange 4.

[0037] In use, bolt hole 9 allows the fastening screw 7 to pass through flange 4 (number 2) and flange 3 (number 1).

[0038] For example, such as Figure 4 As shown, the reinforcing rib 12 is made of aluminum alloy.

[0039] When in use, the reinforcing ribs 12, made of aluminum alloy, can not only effectively reduce the overall weight of square tube 1 and square tube 2, but also maintain good strength and stability.

[0040] When using this utility model, the operator brings the No. 1 square tube 1 and the No. 2 square tube 2 close together so that the annular insertion plate 5 at one end of the No. 1 square tube 1 can be inserted into the annular insertion groove 6 at one end of the No. 2 square tube 2, thus initially connecting the No. 2 square tube 2 and the No. 1 square tube 1.

[0041] Furthermore, when square tube 1 and square tube 2 are connected, flange 3 and flange 4 are fitted together. Personnel pass the end of fastening screw 7 through the bolt hole 9 on flange 4 and flange 3 in sequence, and put fastening nut 8 on the outside of the end of fastening screw 7. This allows square tube 1 and square tube 2 to be fastened together.

[0042] Furthermore, the reinforcing rib 12 can enhance the strength and stability of square tube 1 and square tube 2 on the inner side, and can effectively reduce the overall weight of square tube 1 and square tube 2.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A square tube with a butt joint structure, characterized in that, It includes a No. 1 square tube (1) and a No. 2 square tube (2). One end of the No. 1 square tube (1) and the No. 2 square tube (2) are respectively provided with a No. 1 flange (3) and a No. 2 flange (4). A fastening screw (7) is provided on one side of the No. 2 flange (4), and a fastening nut (8) is provided on one side of the No. 1 flange (3). One end of the first square tube (1) is fixed with an annular plug plate (5) inside the first flange (3), and one end of the second square tube (2) is provided with an annular plug groove (6) inside the second flange (4).

2. A square tube with a butt joint structure according to claim 1, characterized in that, Both the No. 1 square tube (1) and the No. 2 square tube (2) have hollow cavities (11) inside, and reinforcing ribs (12) are embedded inside the hollow cavities (11).

3. A square tube with a butt joint structure according to claim 1, characterized in that, The other end of the first square tube (1) is connected to a first interface (13), and the inner side of the first interface (13) is provided with an internal thread (15).

4. A square tube with a butt joint structure according to claim 1, characterized in that, The other end of the second square tube (2) is connected to the second interface (14), and the outer side of the second interface (14) is provided with an external thread (10).

5. A square tube with a butt joint structure according to claim 1, characterized in that, Both flange No. 1 (3) and flange No. 2 (4) have bolt holes (9) inside.

6. A square tube with a butt joint structure according to claim 2, characterized in that, The reinforcing rib (12) is made of aluminum alloy.