A high strength round tube

Abstract

The utility model relates to a round pipe technical field especially a kind of high-strength round pipe, including straight pipe and inner tube, the inner wall of straight pipe is fixedly connected with the outer wall of inner tube, the inner wall of inner tube is connected with support structure, the support structure includes sheath and straight rod, the outside of sheath is fixedly connected with the inner wall of inner tube, the inside of sheath is fixedly connected with the outer wall of straight rod, the inner wall of sheath is fixedly connected with straight plate, the sheath and straight rod in support structure inner tube inner wall play the supporting role, can prevent round pipe from collapsing by impact, while sheath and straight rod are engineering plastics, provide good anticorrosive effect, and the inner wall of sheath and the outer wall groove of straight rod are all fixedly connected with straight plate, straight plate provides strength by itself carbon fibre material, greatly reduces weight, can prevent support structure overall cracking, improves high-strength round pipe internal support strength, ensures the normal use of high-strength round pipe.

Description

Technical Field

[0001] This utility model relates to the field of high-strength circular tube technology, specifically a high-strength circular tube. Background Technology

[0002] High-strength round tubes are commonly used in the columns and beams of building frames, especially in large industrial plants, exhibition halls and other buildings. High-strength steel tube columns can withstand wind loads, snow loads and seismic forces, ensuring the stability of the building.

[0003] For example, a high-strength circular tube with authorization announcement number "CN208794026U" includes an inner tube and an outer tube. The outer tube is a metal tube, and a strip-shaped support core is inserted in the middle of the inner tube. The support core is set along the axis of the inner tube, and several protruding support parts are provided on the outer side wall of the support core. The support parts are attached to the inner side wall of the inner tube. High-strength circular tubes have the advantages of low manufacturing cost and high structural strength. The inner tube is made of engineering plastics such as PA and ABS. Although it is corrosion resistant, its tensile strength and impact resistance are lower than those of metal materials. For example, when subjected to high-frequency vibration or impact loads, the inner tube may crack due to fatigue, causing the support core to loosen, which in turn affects the overall structural stability. Engineering plastics have poor heat resistance. When the ambient temperature is too high, the inner tube may soften and deform, which reduces the fit between the support core and the inner tube, weakens the bending stiffness of the circular tube, and thus leads to insufficient internal support strength of the high-strength circular tube, affecting the normal use of the high-strength circular tube. Utility Model Content

[0004] The purpose of this invention is to solve the problem of insufficient internal support strength of high-strength round tubes, which affects the normal use of high-strength round tubes, and to propose a high-strength round tube.

[0005] To achieve the above objectives, this utility model provides the following technical solution: Design a high-strength circular tube, including a straight tube and an inner tube. The inner wall of the straight tube is fixedly connected to the outer wall of the inner tube. The inner wall of the inner tube is connected to a support structure. The support structure includes a sheath and a straight rod. The outer side of the sheath is fixedly connected to the inner wall of the inner tube. The inner side of the sheath is fixedly connected to the outer wall of the straight rod. A straight plate is fixedly connected to the inner wall of the sheath.

[0006] This feature, where the inner tube thickens the inner wall of the straight tube, increases the overall bending resistance of the ring.

[0007] Preferably, the inner side of the outer wall of the straight plate is fixedly connected to the groove on the outer wall of the straight rod.

[0008] This feature, where the inner side of the outer wall of the straight plate is inserted into the groove on the outer wall of the straight rod, can increase the support strength of the straight rod and prevent it from deforming.

[0009] Preferably, the outer wall of the straight tube is fixed with rings at both the front and rear ends.

[0010] Preferably, the outer walls of the two rings are each machined with multiple openings.

[0011] This design allows the two rings to be fixedly joined together by bolts through the opening on the outer wall of the ring, thereby enabling the connection of the two round tubes.

[0012] Preferably, the outer wall of the ring is fixed with a plurality of inclined blocks.

[0013] This feature allows the inclined blocks to support the ring, preventing it from deforming or being damaged under pressure.

[0014] Preferably, the ends of the plurality of inclined blocks are all fixedly connected to the outer wall of the straight pipe.

[0015] The high-strength circular tube proposed in this utility model has the following advantages: the inner wall of the tube is supported by a sheath and a straight rod, which prevent the circular tube from collapsing due to impact. At the same time, the sheath and the straight rod are both made of engineering plastics, providing good corrosion resistance. Straight plates are fixed to the grooves on the inner wall of the sheath and the outer wall of the straight rod. The straight plates are made of carbon fiber, which provides strength while greatly reducing weight, preventing the overall support structure from cracking. This improves the internal support strength of the high-strength circular tube and ensures its normal use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A schematic diagram showing the connection relationship between the inner tube, sheath, and straight rod; Figure 3 for Figure 2 A schematic diagram of the structure of A in the middle; Figure 4 for Figure 1 A schematic diagram of the connection relationship between the straight rod and the straight plate.

[0017] In the diagram: 1. Straight pipe, 2. Support structure, 201. Sheath, 202. Straight rod, 203. Straight plate, 3. Inner pipe, 4. Ring, 5. Wedge block, 6. Through port. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings: Please see Figure 1-4In this embodiment, a high-strength circular tube includes a straight tube 1 and an inner tube 3. The inner wall of the straight tube 1 is fixedly connected to the outer wall of the inner tube 3. Both the straight tube 1 and the inner tube 3 are made of stainless steel. The inner wall of the inner tube 3 is connected to a support structure 2. The support structure 2 includes a sheath 201 and a straight rod 202. The outer side of the sheath 201 is fixedly connected to the inner wall of the inner tube 3. The sheath 201 is made of engineering plastic. The inner side of the sheath 201 is fixedly connected to the outer wall of the straight rod 202. The straight rod 202 is also made of engineering plastic. A straight plate 203 is fixedly connected to the inner wall of the sheath 201. The straight plate 203 is made of carbon fiber. The inner side of the outer wall of the straight plate 203 is fixedly connected to the groove on the outer wall of the straight rod 202. The sheath 201 and straight rod 202 on the inner wall of the inner tube 3 in the support structure 3 provide support and prevent the round tube from collapsing due to impact. At the same time, the sheath 201 and straight rod 202 are both made of engineering plastics, providing good corrosion resistance. Straight plates 203 are fixed to the grooves on the inner wall of the sheath 201 and the outer wall of the straight rod 201. The straight plates 203 are made of carbon fiber, which provides strength while greatly reducing weight. This can prevent the support structure 2 from cracking as a whole, improve the internal support strength of the high-strength round tube, and ensure the normal use of the high-strength round tube.

[0019] The outer walls of the straight pipe 1 are fixed with rings 4 at both ends. The rings 4 are made of stainless steel. The outer walls of the two rings 4 are machined with multiple openings 6. The outer walls of the rings 4 are fixed with multiple inclined blocks 5. The inclined blocks 5 are made of stainless steel. The ends of the multiple inclined blocks 5 are fixed to the outer walls of the straight pipe 1.

[0020] Working principle: High-strength round tube support: The outer wall of the inner ring 3 is fixedly connected to the inner wall of the straight pipe 1. At this time, the inner ring 3 increases the overall thickness of the straight pipe 1, thereby increasing the strength of the round pipe. Meanwhile, the sheath 201 and straight rod 202 on the inner wall of the inner pipe 3 play a supporting role, which can prevent the round pipe from collapsing due to impact. At the same time, the sheath 201 and straight rod 202 are both made of engineering plastics, providing good anti-corrosion effect. Straight plates 203 are fixedly connected to the grooves on the inner wall of the sheath 201 and the outer wall of the straight rod 201. The straight plates 203, made of carbon fiber, provide strength while greatly reducing weight, which can prevent the support structure 2 from cracking as a whole and improve the strength of the round pipe.

[0021] High-strength round pipe joint application: When the length of the high-strength round pipe is insufficient and needs to be connected, the ring 4 at the end of the second straight pipe 1 is aligned with the ring 4 at the end of the first straight pipe 1. Then, the second straight pipe 1 is rotated, which in turn rotates the end ring 4, so that the openings 6 on the outer walls of the two rings 4 are aligned. Then, the bolt thread passes through the openings 6 on the outer walls of the two connecting rings 4 to complete the connection of the two round pipes and achieve the lengthening of the high-strength round pipe.

[0022] Multiple inclined blocks 5 are fixed to the outer wall of the ring 4. The inclined blocks 5 support the ring 4. When the ring 4 is subjected to downward pressure, the inclined blocks 5 can transfer the pressure to the straight pipe 1, reduce the pressure on the ring 4, and complete the deformation and damage of the ring 4.

[0023] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A high-strength circular tube, comprising a straight tube (1) and an inner tube (3), characterized in that: The inner wall of the straight tube (1) is fixedly connected to the outer wall of the inner tube (3), and the inner wall of the inner tube (3) is connected to a support structure (2). The support structure (2) includes a sheath (201) and a straight rod (202). The outer side of the sheath (201) is fixedly connected to the inner wall of the inner tube (3), the inner side of the sheath (201) is fixedly connected to the outer wall of the straight rod (202), and a straight plate (203) is fixedly connected to the inner wall of the sheath (201).

2. The high-strength circular tube according to claim 1, characterized in that: The inner side of the outer wall of the straight plate (203) is fixedly connected to the groove on the outer wall of the straight rod (202).

3. The high-strength circular tube according to claim 1, characterized in that: The straight pipe (1) has rings (4) fixed to the front and rear ends of its outer wall.

4. The high-strength circular tube according to claim 3, characterized in that: The outer walls of the two rings (4) are respectively machined with multiple openings (6).

5. The high-strength circular tube according to claim 3, characterized in that: The outer wall of the ring (4) is fixed with multiple inclined blocks (5).

6. The high-strength circular tube according to claim 5, characterized in that: The ends of the plurality of inclined blocks (5) are fixedly connected to the outer wall of the straight pipe (1).

Images