High-strength square tube with fracture-resistant connectors

Abstract

The utility model is applicable to the technical field of square tubes, and provides a high-strength square tube with an anti-fracture connector, which comprises a square tube, an upper mounting block is placed inside the upper end of the square tube, and a lower mounting block is placed inside the lower end of the square tube. The upper mounting block and the lower mounting block are respectively fixed at the joints of the two square tubes through the bolts, the plug is inserted into the reinforcing ring, and the bolt on the outer wall of the upper mounting block is continuously rotated, so that the plug is fixed in the reinforcing ring through the bolt, and the two square tubes are quickly aligned and connected to facilitate the subsequent welding work; the reinforcing ring is a cylindrical ring made of SCM440H alloy structural steel, the SCM440H alloy structural steel has ultrahigh strength and good anti-fatigue performance, the reinforcing ring is effectively prevented from deforming, stress can be evenly transmitted to the square tube through the shape of the reinforcing ring, the integrity of the connector of the square tube is further guaranteed, and the connector is prevented from being broken.

Description

Technical Field

[0001] The utility model belongs to the technical field of square tubes, and in particular relates to a high-strength square tube with an anti-fracture interface. Background Art

[0002] Square tube is a name for square tubes and rectangular tubes, that is, steel tubes with equal and unequal side lengths. They are made by rolling steel strips through processing. Generally, the steel strips are unpacked, flattened, curled, and welded to form round tubes, which are then rolled into square tubes and then cut into required lengths.

[0003] Due to the shape of the square tube, the square tube interface is subjected to uneven stress and is prone to breakage, thus affecting the structural safety. Utility Model Content

[0004] The utility model provides a high-strength square tube with an anti-fracture interface, aiming to solve the problem in the prior art that the square tube interface is prone to fracture due to uneven force, thereby affecting structural safety.

[0005] The utility model is achieved as follows: a high-strength square tube with an anti-fracture interface comprises a square tube, an upper mounting block is placed inside the upper end of the square tube, and a lower mounting block is placed inside the lower end of the square tube, the upper surface of the upper mounting block is provided with a slot, and the inner wall of the slot is fixedly connected with a reinforcement ring, the lower surface of the lower mounting block is fixedly connected with a plug matching the inner wall of the reinforcement ring, and the outer wall of the square tube is threadedly connected with a bolt, and the outer walls of the upper mounting block, the lower mounting block and the plug are respectively provided with threaded holes matching the bolts.

[0006] Preferably, an outer wall of the square tube is provided with a receiving groove, and the bolt is located inside the receiving groove.

[0007] Preferably, a guide groove is provided on the outer wall of the lower end of the plug.

[0008] Preferably, a limiting plate is fixedly connected to the inner wall of the square tube.

[0009] Preferably, the outer wall of the square tube is coated with an anti-rust coating.

[0010] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0011] When two square tubes are connected, the upper mounting block and the lower mounting block are respectively fixed to the interfaces on the two square tubes by bolts, and the plug is inserted into the reinforcement ring. The bolts on the outer wall of the upper mounting block are continued to be rotated so that the bolts fix the plug in the reinforcement ring, thereby allowing the two square tubes to be quickly aligned and connected, facilitating subsequent welding work. The reinforcement ring is a cylindrical ring made of SCM440H alloy structural steel. SCM440H alloy structural steel has ultra-high strength and good fatigue resistance, which effectively prevents the reinforcement ring from deformation. The shape of the reinforcement ring can evenly transmit force to the square tube, further ensuring the integrity of the square tube interface and preventing breakage at the interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0014] Figure 3 This is a schematic diagram of the three-dimensional enlarged structure of the upper mounting block of the utility model;

[0015] In the figure: 1. Square tube; 2. Upper mounting block; 3. Lower mounting block; 4. Slot; 5. Plug; 6. Bolt; 7. Receiving groove; 8. Threaded hole; 9. Guide groove; 10. Reinforcement ring; 11. Limiting piece. DETAILED DESCRIPTION

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0017] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0018] The present invention provides a high-strength square tube with an anti-fracture interface. Figure 1-3As shown, it includes a square tube 1, an upper mounting block 2 is placed inside the upper end of the square tube 1, and a lower mounting block 3 is placed inside the lower end of the square tube 1, a slot 4 is provided on the upper surface of the upper mounting block 2, and a reinforcement ring 10 is fixedly connected to the inner wall of the slot 4, a plug 5 matching the inner wall of the reinforcement ring 10 is fixedly connected to the lower surface of the lower mounting block 3, and a bolt 6 is threadedly connected to the outer wall of the square tube 1, and a threaded hole 8 matching the bolt 6 is respectively provided on the outer wall of the upper mounting block 2, the outer wall of the lower mounting block 3 and the outer wall of the plug 5.

[0019] It should be noted that, since the square tube interface in the prior art is subjected to uneven force, it is easy to break, thus affecting the structural safety. Therefore, in order to solve the problem of uneven force at the square tube interface in the prior art, which is easy to break, thus affecting the structural safety, in this solution, when the two square tubes 1 are connected, the upper mounting block 2 and the lower mounting block 3 are respectively fixed to the interfaces on the two square tubes 1 by bolts 6, and the plug 5 is inserted into the reinforcement ring 10. The bolt 6 on the outer wall of the upper mounting block 2 is continued to be rotated so that the bolt 6 fixes the plug 5 in the reinforcement ring 10, so that the two square tubes 1 are quickly aligned and connected, which is convenient for subsequent welding work. The reinforcement ring 10 is a cylindrical ring made of SCM440H alloy structural steel. SCM440H alloy structural steel has ultra-high strength and good fatigue resistance, which effectively prevents the reinforcement ring 10 from deformation. The shape of the reinforcement ring 10 can evenly transmit force to the square tube 1, further ensuring the integrity of the interface of the square tube 1 and preventing the interface from breaking.

[0020] In a further preferred embodiment of the present invention, Figure 1 As shown, the outer wall of the square tube 1 is provided with a receiving groove 7 , and the bolt 6 is located inside the receiving groove 7 .

[0021] In this embodiment, the bolt 6 is accommodated by the accommodating groove 7 , thereby preventing the bolt 6 from protruding from the outer wall of the square tube 1 .

[0022] In a further preferred embodiment of the present invention, Figure 1 As shown, a guide groove 9 is provided on the outer wall of the lower end of the plug 5 .

[0023] In this embodiment, the guide groove 9 is used to improve the guidance of the plug 5 when it is inserted into the reinforcement ring 10, thereby facilitating the insertion of the plug 5 into the reinforcement ring 10.

[0024] In a further preferred embodiment of the present invention, Figure 2 As shown, a limiting plate 11 is fixedly connected to the inner wall of the square tube 1 .

[0025] In this embodiment, the positions of the upper mounting block 2 and the lower mounting block 3 are restricted by the limiting piece 11 , thereby facilitating alignment of the bolt 6 with the threaded holes 8 on the upper mounting block 2 and the lower mounting block 3 .

[0026] In a further preferred embodiment of the present invention, Figure 1 As shown, the outer wall of the square tube 1 is coated with an anti-rust coating.

[0027] In this embodiment, the anti-rust coating prevents the square tube 1 from rusting, thereby increasing the service life of the square tube 1.

[0028] It should be noted that for the aforementioned embodiments, for simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0029] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative, such as the division of the above-mentioned units. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the coupling or communication connection between each other shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0030] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. A high-strength square tube with an anti-fracture interface, characterized in that: The invention comprises a square tube (1), an upper mounting block (2) is placed inside the upper end of the square tube (1), and a lower mounting block (3) is placed inside the lower end of the square tube (1), a slot (4) is provided on the upper surface of the upper mounting block (2), and a reinforcement ring (10) is fixedly connected to the inner wall of the slot (4), a plug (5) matching the inner wall of the reinforcement ring (10) is fixedly connected to the lower surface of the lower mounting block (3), and a bolt (6) is threadedly connected to the outer wall of the square tube (1), and threaded holes (8) matching the bolt (6) are respectively provided on the outer wall of the upper mounting block (2), the outer wall of the lower mounting block (3), and the outer wall of the plug (5).

2. A high-strength square tube with anti-fracture interface according to claim 1, characterized in that: The outer wall of the square tube (1) is provided with a receiving groove (7), and the bolt (6) is located inside the receiving groove (7).

3. The high-strength square tube with anti-fracture interface according to claim 1, characterized in that: A guide groove (9) is provided on the outer wall of the lower end of the plug (5).

4. The high-strength square tube with anti-fracture interface according to claim 1, characterized in that: A limiting plate (11) is fixedly connected to the inner wall of the square tube (1).

5. The high-strength square tube with anti-fracture interface according to claim 1, characterized in that: The outer wall of the square tube (1) is coated with an anti-rust coating.

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