High-strength pressure-resistant straight seam steel pipe

Abstract

The utility model discloses a high-strength pressure-resistant straight seam steel pipe which comprises a straight seam steel pipe body, a pressure-resistant mechanism is fixedly installed on the outer surface of the straight seam steel pipe body, and wavy protruding lines are arranged on the inner ring wall of the straight seam steel pipe body, so that the straight seam steel pipe body can disperse and evenly transmit stress when bearing pressure through the wavy protruding lines on the inner wall. And local pressure concentration is avoided, so that the overall pressure resistance is improved. Through the design of the compression-resistant mechanism and the wavy convex lines, the stress can be dispersed and uniformly transmitted when the straight seam steel pipe body bears pressure, local pressure concentration is avoided, and therefore the overall pressure resistance is improved, and when the straight seam steel pipe body is compressed, the compression resistance of the straight seam steel pipe body is improved. The straight seam steel pipe body can share part of pressure by pulling the steel bars penetrating through the straight seam steel pipe body through the connecting blocks on the outer surface, the burden of the straight seam steel pipe body is reduced, and the compression strength in the high-pressure environment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a straight seam steel pipe technical field, specifically is a kind of high-strength pressure-resistant straight seam steel pipe. BACKGROUND

[0002] Straight seam steel pipe (straight seam welded steel pipe) is a kind of steel pipe formed by being wound into circle or other shape by steel plate or steel strip and being formed by straight welding joint. Its welding seam is straight line, so it is named "straight seam steel pipe". Straight seam steel pipe is widely used in the fields of liquid and gas transportation, building structure, oil and gas pipeline etc.

[0003] As the patent of national authorization patent announcement No.CN217583560U discloses a kind of high-frequency straight seam steel pipe of convenient adjustment, including pipe body, the pipe body, the pipe body one end is fixedly connected with first connecting disc, the pipe body other end is fixedly connected with second connecting disc;The first connecting disc includes disc body, the disc body and pipe body are fixed, the disc body is fixedly connected with several arc-shaped pins on the side away from pipe body, and the pin end is fixedly connected with peg head;The second connecting disc side wall is equipped with several annularly arranged clamping grooves, and the clamping groove is provided with movable clamping block.The utility model designs a kind of straight seam steel pipe of convenient installation connection, and steel pipe is composed of multilayer structure, with better performance.

[0004] However, the above-mentioned high-frequency straight seam steel pipe of convenient adjustment does not have the function of dispersing and uniformly transmitting stress, so that it will deform under high pressure environment due to the inability to effectively disperse or withstand excessive internal and external pressure, especially the weak point of the connection will become a stress concentration point, which will cause local deformation or fracture. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of high-strength pressure-resistant straight seam steel pipe to solve the problem of not having the function of dispersing and uniformly transmitting stress raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A kind of high-strength pressure-resistant straight seam steel pipe, comprising: straight seam steel pipe body, the straight seam steel pipe body outer surface is fixedly installed with pressure-resisting mechanism, and the inner ring wall of the straight seam steel pipe body is provided with wave relief.

[0008] Preferably, the wave relief is arranged at equal angles around the center axis of the straight seam steel pipe body on the inner ring wall of the straight seam steel pipe body, so that the straight seam steel pipe body can disperse and uniformly transmit stress when bearing pressure through the wave relief on the inner wall, avoid local pressure concentration, thereby improving the overall pressure resistance.

[0009] Preferably, the anti-pressure mechanism comprises convex rings fixedly installed at both ends of the outer surface of the straight-seam steel pipe body, and a plurality of reinforcing bars are inserted into the insertion holes of the two sets of convex rings.

[0010] Preferably, the front half of the insertion hole is provided with a threaded hole, and a bolt is screwed into the threaded hole of the two sets of insertion holes, so that the two sets of bolts can press and fix the reinforcing bars inserted into the insertion holes, and the reinforcing bars are spaced apart from the outer surface of the straight-seam steel pipe body.

[0011] Preferably, the straight-seam steel pipe body is fixedly provided with a connecting block on the outer surface, and the connecting block is provided with a through hole at one end, and the through hole of the connecting block is flush with the insertion hole, so that the reinforcing bars passing through the insertion hole can pass through the through hole of the connecting block.

[0012] Preferably, when the straight-seam steel pipe body is compressed, the reinforcing bars passing through the connecting block on the outer surface of the straight-seam steel pipe body can be pulled, so that the reinforcing bars can help to share part of the pressure, reduce the burden of the straight-seam steel pipe body, and improve the pressure resistance in a high-pressure environment.

[0013] Preferably, the connecting blocks are evenly distributed along the outer surface of the straight-seam steel pipe body, and the position of each connecting block corresponds to the wave crest or wave trough of the adjacent wave corrugation, so as to enhance the structural strength and stability of the steel pipe as a whole.

[0014] Preferably, the head of the bolt is provided with anti-skid lines or anti-skid grooves, so as to increase the friction during the fastening process, prevent the bolt from loosening, and ensure that the reinforcing bars are firmly pressed into the insertion hole.

[0015] Preferably, the surface of the reinforcing bar is coated with a corrosion-resistant layer made of corrosion-resistant materials such as epoxy resin, hot-dip galvanizing or stainless steel, so as to protect the reinforcing bar from the erosion of the external environment and prolong the service life of the entire steel pipe.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1、By the design of straight seam steel pipe body, wave convex and compression resistance mechanism, the wave convex arranged in the straight seam steel pipe body can make the impact force better dispersed when the straight seam steel pipe body bears the impact load, because the wave convex changes the propagation path and stress distribution of the impact force in the straight seam steel pipe body, avoids the impact force concentrated in a local area, thereby reducing the damage caused by local stress concentration, improving the impact resistance of the straight seam steel pipe body, enabling it to disperse and uniformly transmit stress when bearing pressure, avoiding local pressure concentration, thereby improving the overall pressure resistance, and enabling the straight seam steel pipe body to pull the compression resistance mechanism on the outer surface when being compressed to share part of the pressure, reducing the burden of the straight seam steel pipe body and improving the pressure resistance in high pressure environment.

[0018] 2、By the design of convex ring, connecting block, steel bar and bolt, when in use, the steel bar can be inserted into the convex ring fixed on the outer surface of the straight seam steel pipe body, and the steel bar inserted from the convex ring will pass through the connecting block installed on the outer surface of the straight seam steel pipe body, and the steel bar passing through the connecting block will be inserted into the insertion hole of another group of convex rings, and then two groups of bolts can be screwed into the threaded holes in the front half of the insertion hole, thereby enabling the two groups of bolts to press and fix the steel bar inserted into the insertion hole, making the steel bar suspended on the outer surface of the straight seam steel pipe body, and when the straight seam steel pipe body is under pressure, the steel bar can act as an additional support structure to transfer part of the pressure to itself, thereby reducing the pressure borne by the straight seam steel pipe body, improving the stability and safety of the straight seam steel pipe body under pressure, and ensuring that the steel bar can effectively share the pressure when the straight seam steel pipe body is under pressure. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is the overall structure schematic diagram of the high-strength pressure-resistant straight seam steel pipe of the utility model.

[0020] Fig. 2 It is the structure schematic diagram of the compression resistance mechanism of the utility model.

[0021] Fig. 3 It is the structure schematic diagram of the insertion hole and the connecting block of the utility model.

[0022] In the figure: 1, straight seam steel pipe body; 101, wave convex; 2, compression resistance mechanism; 201, convex ring; 202, connecting block; 203, steel bar; 204, bolt; 205, insertion hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] Please refer to Figs. 1-3 The embodiment provides a high-strength pressure-resistant straight-seam steel pipe, which comprises a straight-seam steel pipe body 1, a pressure-resistant mechanism 2 is fixedly installed on the outer surface of the straight-seam steel pipe body 1, and a wave-shaped convex pattern 101 is arranged on the inner annular wall of the straight-seam steel pipe body 1.

[0025] The wave-shaped convex pattern 101 is arranged at equal angles around the central axis of the straight-seam steel pipe body 1 on the inner annular wall of the straight-seam steel pipe body 1, and the straight-seam steel pipe body 1 can disperse and uniformly transmit stress when bearing pressure through the wave-shaped convex pattern 101 on the inner wall, thereby avoiding local pressure concentration and improving the overall pressure resistance.

[0026] The wave-shaped convex pattern 101 arranged in the straight-seam steel pipe body 1 can better disperse the impact force when the straight-seam steel pipe body 1 bears impact load, because the wave-shaped convex pattern 101 changes the propagation path and stress distribution of the impact force in the straight-seam steel pipe body 1, avoids the impact force concentrating in a local area, reduces damage caused by local stress concentration, improves the impact resistance of the straight-seam steel pipe body 1, can disperse and uniformly transmit stress when the straight-seam steel pipe body 1 bears pressure, avoids local pressure concentration, thereby improving the overall pressure resistance, and when the straight-seam steel pipe body 1 is compressed, the pressure-resistant mechanism 2 on the outer surface of the straight-seam steel pipe body 1 can be pulled to share part of the pressure, reduces the burden of the straight-seam steel pipe body 1, and improves the pressure resistance in a high-pressure environment.

[0027] As shown in the figure, Figs. 2-3 The pressure-resistant mechanism 2 comprises a convex ring 201, the convex ring 201 is fixedly installed at both ends of the outer surface of the straight-seam steel pipe body 1, plug-in holes 205 are communicated and arranged in the two groups of convex rings 201, and steel bars 203 are inserted in the plug-in holes 205 of the two groups of convex rings 201.

[0028] The front half of the plug-in hole 205 is provided with a threaded hole, and the threaded hole in the two groups of plug-in holes 205 is screwed with a bolt 204, so that the two groups of bolts 204 can press and fix the steel bars 203 inserted in the plug-in holes 205, and the steel bars 203 are arranged in the air at the outer surface of the straight-seam steel pipe body 1.

[0029] The connecting block 202 is fixedly installed on the outer surface of the straight seam steel pipe body 1, and a through hole is formed at one end of the connecting block 202. The through hole of the connecting block 202 is flush with the insertion hole 205, so that the steel bar 203 passing through the insertion hole 205 can pass through the through hole of the connecting block 202.

[0030] When the straight seam steel pipe body 1 is compressed, the steel bar 203 passing through the connecting block 202 on the outer surface of the straight seam steel pipe body 1 can be pulled, so that the steel bar 203 can help to share part of the pressure, reduce the burden of the straight seam steel pipe body 1, and improve the pressure resistance in a high-pressure environment.

[0031] Through the design of the convex ring 201, the connecting block 202, the steel bar 203 and the bolt 204, in use, the steel bar 203 can be inserted into the convex ring 201 fixed on the outer surface of the straight seam steel pipe body 1, and the steel bar 203 passing out of the convex ring 201 can pass through the connecting block 202 installed at the end of the outer surface of the straight seam steel pipe body 1. The steel bar 203 passing through the connecting block 202 can be inserted into the insertion hole 205 of another set of convex rings 201. Then, the two sets of bolts 204 can be screwed into the threaded holes formed in the front half of the insertion hole 205, so that the two sets of bolts 204 can press and fix the steel bar 203 inserted into the insertion hole 205, and the steel bar 203 can be suspended on the outer surface of the straight seam steel pipe body 1. When the straight seam steel pipe body 1 is compressed, the steel bar 203 can act as an additional support structure to transfer part of the pressure to itself, thereby reducing the pressure borne by the straight seam steel pipe body 1, improving the stability and safety of the straight seam steel pipe body 1 under compression, and ensuring that the steel bar 203 can effectively share the pressure when the straight seam steel pipe body 1 is subjected to pressure.

[0032] Specifically, in this embodiment, the connecting blocks 202 are evenly distributed along the circumference of the outer surface of the straight seam steel pipe body 1, and the position of each connecting block 202 corresponds to the peak or trough of the adjacent wave ridge 101, so as to enhance the structural strength and stability of the steel pipe as a whole.

[0033] Specifically, in this embodiment, the head of the bolt 204 is provided with anti-slip patterns or grooves, so as to increase the friction during the fastening process, prevent the bolt 204 from loosening, and ensure that the steel bar 203 is firmly pressed and fixed in the insertion hole 205.

[0034] Specifically, in this embodiment, the surface of the steel bar 203 is coated with a corrosion-resistant layer made of corrosion-resistant materials such as epoxy resin, hot-dip galvanizing or stainless steel, so as to protect the steel bar 203 from the erosion of the external environment and prolong the service life of the entire steel pipe.

[0035] According to the technical scheme, the working steps of the scheme are summarized and combed: the wave corrugation 101 arranged in the straight seam steel pipe body 1 can make the impact force better dispersed when the straight seam steel pipe body 1 bears the impact load, because the wave corrugation 101 changes the propagation path and stress distribution of the impact force in the straight seam steel pipe body 1, avoids the impact force concentrated in a local area, can make the stress dispersed and uniformly transmitted when the straight seam steel pipe body 1 bears the pressure, avoids the local pressure concentration, thereby improving the overall pressure resistance, then the reinforcing steel bars 203 can be inserted in the convex rings 201 fixed on the outer surface of the straight seam steel pipe body 1, the reinforcing steel bars 203 inserted in the convex rings 201 can pass through the connecting blocks 202 installed on the outer surface of the straight seam steel pipe body 1, the reinforcing steel bars 203 passing through the connecting blocks 202 can be inserted into the insertion holes 205 of another group of convex rings 201 again, then the two groups of bolts 204 can be screwed into the threaded holes opened in the front half of the insertion holes 205, thereby the two groups of bolts 204 can press and fix the reinforcing steel bars 203 inserted in the insertion holes 205, so that the reinforcing steel bars 203 are suspended on the outer surface of the straight seam steel pipe body 1, when the straight seam steel pipe body 1 bears the pressure, the reinforcing steel bars 203 can be used as an additional support structure to transfer part of the pressure to itself, thereby reducing the pressure intensity borne by the straight seam steel pipe body 1 and improving the stability and safety of the straight seam steel pipe body 1 under pressure.

[0036] In summary: the straight seam steel pipe body 1 can disperse and uniformly transmit the stress when bearing the pressure, avoid the local pressure concentration, thereby improve the overall pressure resistance, and when the straight seam steel pipe body 1 is compressed, the straight seam steel pipe body 1 can pull the reinforcing steel bars 203 passing through the connecting blocks 202 on the outer surface to share part of the pressure, reduce the burden of the straight seam steel pipe body 1, and improve the pressure resistance in the high-pressure environment.

[0037] The parts not involved in the utility model are the same as or can be realized by the prior art. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength, pressure-resistant straight seam steel pipe, characterized in that, include: The straight seam steel pipe body has a pressure-resistant mechanism fixedly installed on its outer surface, and the inner ring wall of the straight seam steel pipe body is provided with corrugated ridges.

2. The high-strength pressure-resistant straight seam steel pipe according to claim 1, characterized in that: The wavy ridges are arranged at equal angles around the central axis of the straight seam steel pipe body on the inner ring wall of the straight seam steel pipe body.

3. The high-strength pressure-resistant straight seam steel pipe according to claim 2, characterized in that: The compression-resistant mechanism includes convex rings, which are fixedly installed at both ends of the outer surface of the straight seam steel pipe body. Both sets of convex rings have interconnected insertion holes, and reinforcing bars are inserted into the insertion holes of the two sets of convex rings.

4. A high-strength, pressure-resistant straight seam steel pipe according to claim 3, characterized in that: The front half of the insertion hole is provided with a threaded hole, and bolts are installed in the threaded holes of the two sets of insertion holes. The two sets of bolts can press the reinforcing bars inserted in the insertion holes into the holes, so that the reinforcing bars are suspended on the outer surface of the straight seam steel pipe body.

5. A high-strength, pressure-resistant straight seam steel pipe according to claim 3, characterized in that: A connecting block is fixedly installed on the outer surface of the straight seam steel pipe body. A through hole is opened at one end of the connecting block. The through hole of the connecting block is flush with the insertion hole. The reinforcing bar passing through the insertion hole can pass through the through hole of the connecting block together.

6. A high-strength, pressure-resistant straight seam steel pipe according to claim 5, characterized in that: The connecting blocks are evenly distributed circumferentially along the outer surface of the straight seam steel pipe body, and the position of each connecting block corresponds to the crest or trough of the adjacent corrugated ridge.

7. A high-strength, pressure-resistant straight seam steel pipe according to claim 4, characterized in that: The head of the bolt is provided with anti-slip texture or anti-slip groove.

8. A high-strength, pressure-resistant straight seam steel pipe according to claim 3, characterized in that: The surface of the reinforcing steel is coated with an anti-corrosion layer.

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