High-toughness thin-wall stainless steel pipe

Abstract

The utility model discloses a high-toughness thin-wall stainless steel pipe which comprises an outer pipe, the inner side face of the outer pipe is fixedly connected with a supporting frame, the outer surface of the supporting frame is fixedly connected with a filling layer, and one side of the inner side face of the supporting frame is fixedly connected with a buffering core. According to the high-toughness thin-wall stainless steel pipe, the supporting frame, the filling layer, the buffer core, the expansion joint, the pressure bearing layer, the carbon fiber layer and the graphene layer are arranged, the strength of the stainless steel pipe is improved through the supporting frame, the sealing performance of connection between the outer pipe and the supporting frame and connection between the inner pipe and the supporting frame are improved through the filling layer and the buffer core correspondingly, and the pressure buffering effect can be achieved; the two expansion joints prevent the problem that local stress of the stainless steel pipe is too large, the toughness and the anti-fatigue capacity of the stainless steel pipe are improved, the pressure bearing layer prevents force from being concentrated at one position to damage the stainless steel pipe, the carbon fiber layer has good tolerance and extensibility, the graphene layer can enhance the hardness of the stainless steel pipe, and the service life of the stainless steel pipe is prolonged. Therefore, the stainless steel pipe body is prevented from being bent.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipes, in particular to a high-toughness thin-wall stainless steel pipe. Background Art

[0002] Stainless steel pipe is a hollow long round steel, which is widely used in industrial pipelines such as petroleum, chemical, medical, food, light industry, mechanical instrumentation, and mechanical structural components. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures, and is also often used as furniture and kitchen utensils.

[0003] After searching, Chinese patent publication (announcement) number CN209485125U discloses an easy-to-clean high-toughness stainless steel pipe, which relates to the technical field of heat exchanger equipment, including a U-shaped pipe body, a filter section is provided at one end of the U-shaped pipe body, a filter plate is clamped in the filter section, and the inner diameter of the filter section is larger than the inner diameter of the U-shaped pipe body; the U-shaped pipe body includes two monomers that are detachably connected and symmetrical on the left and right, and the monomers are connected and sealed by a sealing connector, and the sealing connector is located at the lowest point of the U-shaped pipe body; the inner diameter of the sealing connector is larger than the inner diameter of the U-shaped pipe body. The U-shaped pipe body of the utility model is provided with a filter section at one end, and the filter plate in the filter section effectively filters substances that are easy to cause scaling of the U-shaped pipe, thereby reducing scaling in the pipe, reducing the difficulty and cost of cleaning the U-shaped pipe, and saving cleaning time.

[0004] Although the stainless steel tube of the above patent is easy to clean, it has relatively low toughness and is easily deformed when it touches external objects, causing the stainless steel tube to be easily damaged and inconvenient to use. Therefore, it is necessary to design a high-toughness thin-walled stainless steel tube to solve the above problem. Utility Model Content

[0005] The main purpose of the utility model is to provide a high-toughness thin-wall stainless steel pipe, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A high-toughness thin-walled stainless steel pipe comprises an outer pipe, the inner side surface of the outer pipe is fixedly connected to a support frame, the outer surface of the support frame is fixedly connected to a filling layer, and one side of the inner side surface of the support frame is fixedly connected to a buffer core; the inner side surface of the support frame is fixedly connected to an inner pipe, both sides of the outer surface of the inner pipe are fixedly connected to expansion joints, one side of the inner wall of the inner pipe is fixedly connected to a pressure-bearing layer, the inner side surface of the pressure-bearing layer is fixedly connected to a carbon fiber layer, and the inner side surface of the carbon fiber layer is fixedly connected to a graphene layer.

[0008] In order to achieve the effect of enhancing wear resistance, as a high-toughness thin-walled stainless steel pipe of the utility model, the outer surface of the outer pipe is fixedly connected with a wear-resistant layer.

[0009] In order to achieve the effect of enhancing the structural strength, as a high-toughness thin-walled stainless steel pipe of the utility model, a spiral reinforcing rib is fixedly connected to the middle part of the inner side surface of the inner pipe.

[0010] In order to enhance the sealing effect of the connection, as a high-toughness thin-wall stainless steel pipe of the utility model, a sealing groove is opened on one side of the inner side surface of the inner pipe, and a sealing ring is fixedly connected to one side of the outer surface of the inner pipe.

[0011] In order to achieve the effect of enhancing the connection firmness, as a high-toughness thin-walled stainless steel pipe of the utility model, the inner wall of the sealing groove is provided with an internal thread groove, and the outer surface of the sealing ring is fixedly connected with an external thread.

[0012] In order to achieve the effect of strengthening the structural strength at the pipe mouth, as a high-toughness thin-walled stainless steel pipe of the utility model, both sides of the outer surface of the outer pipe are fixedly connected with fixing rings.

[0013] In order to facilitate the connection of multiple pipelines, as a high-toughness thin-walled stainless steel pipe of the utility model, extension blocks are fixedly connected to both sides of the outer surface of the fixing ring, and the outer surface of the extension block is provided with a connecting hole, and the internal thread of the connecting hole is connected with a bolt.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. In the utility model, through the arrangement of the support frame, the filling layer, the buffer core, the expansion joint, the pressure-bearing layer, the carbon fiber layer and the graphene layer, the support frame increases the strength of the stainless steel pipe and protects the pipe from deformation; the filling layer and the buffer core respectively increase the sealing of the connection between the outer pipe, the inner pipe and the support frame, and at the same time can play a role in buffering the pressure when the entire stainless steel pipe is squeezed; the two-section expansion joint prevents the problem of excessive local force on the stainless steel pipe, improves the toughness and fatigue resistance of the stainless steel pipe, the pressure-bearing layer prevents the force from being concentrated in one place and causing damage to the stainless steel pipe, and the carbon fiber layer has good tolerance and extensibility, and the graphene layer can enhance the hardness of the stainless steel pipe, thereby preventing the stainless steel pipe body from bending.

[0016] 2. In the utility model, through the arrangement of spiral reinforcement ribs, sealing rings, internal thread grooves, fixing rings and bolts, two spiral reinforcement ribs are staggered and fixed, which can enhance the toughness of the inside of the stainless steel pipe and greatly improve the pressure resistance of the stainless steel pipe. The external thread on the outer surface of the sealing ring is connected with the internal thread groove on the inner side of the sealing groove to meet the pipeline installation requirements, and can enhance the sealing of the connection between the two stainless steel pipes. The sealing effect is enhanced, and the fixing ring further enhances the structural strength of both ends of the stainless steel pipe and prolongs the service life. The bolts are threadedly connected to the inside of the two corresponding connecting holes, so that the two sets of fixing rings are fixed by the extension block, which increases the extensibility of the stainless steel pipe and prevents it from falling off during connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of an embodiment of the utility model;

[0018] Figure 2 It is a left-side structural schematic diagram of an embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional plan structure of an embodiment of the utility model;

[0020] Figure 4 It is a right side structural schematic diagram of an embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the inner wall structure of the outer tube and the inner tube of an embodiment of the utility model.

[0022] In the figure: 1. outer tube; 2. support frame; 3. filling layer; 4. buffer core; 5. inner tube; 6. expansion joint; 7. pressure-bearing layer; 8. carbon fiber layer; 9. graphene layer; 10. wear-resistant layer; 11. spiral reinforcement rib; 12. sealing groove; 13. sealing ring; 14. internal thread groove; 15. external thread; 16. fixing ring; 17. extension block; 18. connecting hole; 19. bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example

[0025] like Figure 1-5As shown, a high-toughness thin-walled stainless steel tube comprises an outer tube 1, the inner side surface of the outer tube 1 is fixedly connected to a support frame 2, the outer surface of the support frame 2 is fixedly connected to a filling layer 3, and one side of the inner side surface of the support frame 2 is fixedly connected to a buffer core 4; the inner side surface of the support frame 2 is fixedly connected to an inner tube 5, both sides of the outer surface of the inner tube 5 are fixedly connected to expansion joints 6, one side of the inner wall of the inner tube 5 is fixedly connected to a pressure-bearing layer 7, the inner side surface of the pressure-bearing layer 7 is fixedly connected to a carbon fiber layer 8, and the inner side surface of the carbon fiber layer 8 is fixedly connected to a graphene layer 9.

[0026] During specific use, the support frame 2 is fixed between the outer tube 1 and the inner tube 5 through the arrangement of the support frame 2, the filling layer 3, the buffer core 4, the expansion joint 6, the pressure-bearing layer 7, the carbon fiber layer 8 and the graphene layer 9, so as to further increase the strength of the stainless steel pipe and protect the pipeline from deformation. The filling layer 3 and the buffer core 4 respectively increase the sealing of the connection between the outer tube 1, the inner tube 5 and the support frame 2. At the same time, when the entire stainless steel pipe is squeezed, it can play a role in buffering pressure, disperse the surrounding pressure, achieve uniformity of partial pressure, and avoid damage due to pressure. The two-section expansion joint 6 prevents the problem of excessive local force on the stainless steel pipe, improves the toughness and fatigue resistance of the stainless steel pipe, and avoids the situation where the stainless steel pipe is easily deformed due to contact with external objects. The pressure-bearing layer 7 prevents the force from being concentrated in one place to cause damage to the stainless steel pipe, and the carbon fiber layer 8 has good tolerance and extensibility, good stability, and the graphene layer 9 can enhance the hardness of the stainless steel pipe, thereby preventing the stainless steel pipe body from bending and improving the strength of the stainless steel pipe.

[0027] In this embodiment, a wear-resistant layer 10 is fixedly connected to the outer surface of the outer tube 1 .

[0028] During specific use, the wear-resistant layer 10 can increase the wear resistance of the surface of the stainless steel pipe by setting the wear-resistant layer 10, reduce wear during long-term use, and extend the service life.

[0029] In this embodiment, a spiral reinforcement rib 11 is fixedly connected to the middle portion of the inner side surface of the inner tube 5 .

[0030] During specific use, by setting the spiral reinforcement ribs 11, the two spiral reinforcement ribs 11 are staggered and fixed, so that the toughness inside the stainless steel pipe can be strengthened, and the compression resistance of the stainless steel pipe can be greatly improved.

[0031] In this embodiment, a sealing groove 12 is formed on one side of the inner side surface of the inner tube 5 , and a sealing ring 13 is fixedly connected to one side of the outer surface of the inner tube 5 .

[0032] When used specifically, by setting the sealing ring 13 and connecting the sealing ring 13 with the sealing groove 12, the sealing performance of the connection between the two stainless steel pipes can be enhanced, and the sealing effect is enhanced.

[0033] In this embodiment, an internal thread groove 14 is formed on the inner wall of the sealing groove 12 , and an external thread 15 is fixedly connected to the outer surface of the sealing ring 13 .

[0034] During specific use, the external thread 15 is threadedly connected to the inside of the internal thread groove 14 through the setting of the internal thread groove 14, which facilitates the connection of two stainless steel pipes to meet the pipeline installation requirements. At the same time, the threaded connection further improves the sealing effect.

[0035] In this embodiment, fixing rings 16 are fixedly connected to both sides of the outer surface of the outer tube 1 .

[0036] During specific use, the fixing ring 16 can be provided to further enhance the structural strength of both ends of the stainless steel pipe and extend its service life.

[0037] In this embodiment, both sides of the outer surface of the fixing ring 16 are fixedly connected with extension blocks 17 , the outer surface of the extension block 17 is provided with a connection hole 18 , and the inner part of the connection hole 18 is threadedly connected with a bolt 19 .

[0038] During specific use, the bolts 19 are threadedly connected to the inside of the two corresponding connection holes 18 through the setting of the bolts 19, so that the two sets of fixing rings 16 are fixed through the extension block 17, which increases the extensibility of the stainless steel pipe and prevents it from falling off during connection.

[0039] Working principle: In use, the sealing ring 13 is connected to the internal thread groove 14 on the inner side of the sealing groove 12 through the external thread 15 to meet the pipeline installation requirements. The sealing of the connection between the two stainless steel pipes can be strengthened. The fixing ring 16 strengthens the structural strength of the two ends of the stainless steel pipe. The bolt 19 is threadedly connected to the inside of the two corresponding connection holes 18, so that the two sets of fixing rings 16 are fixed through the extension block 17 to prevent the phenomenon of falling off during connection. The wear-resistant layer 10 can increase the wear resistance of the stainless steel pipe surface. The support frame 2 is fixed between the outer pipe 1 and the inner pipe 5 to further increase the strength of the stainless steel pipe. The filling layer 3 and the buffer core 4 are respectively enlarged. The sealing performance of the connection between the outer tube 1, the inner tube 5 and the support frame 2 can also play a role in buffering pressure when the entire stainless steel tube is squeezed. The two-section expansion joint 6 prevents the stainless steel tube from being subjected to excessive local force, thereby improving the toughness and fatigue resistance of the stainless steel tube. The pressure-bearing layer 7 prevents the force from being concentrated in one place and causing damage to the stainless steel tube. The carbon fiber layer 8 has good tolerance and extensibility and good stability. The graphene layer 9 can enhance the hardness of the stainless steel tube, thereby preventing the stainless steel tube body from bending. The two spiral reinforcement ribs 11 are staggered and fixed, which can enhance the toughness inside the stainless steel tube and greatly improve the pressure resistance of the stainless steel tube.

[0040] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-toughness thin-walled stainless steel tube, comprising an outer tube (1), characterized in that: The inner side surface of the outer tube (1) is fixedly connected to a support frame (2), the outer surface of the support frame (2) is fixedly connected to a filling layer (3), and one side of the inner side surface of the support frame (2) is fixedly connected to a buffer core (4); The inner side surface of the support frame (2) is fixedly connected to an inner tube (5), both sides of the outer surface of the inner tube (5) are fixedly connected to expansion joints (6), one side of the inner wall of the inner tube (5) is fixedly connected to a pressure-bearing layer (7), the inner side surface of the pressure-bearing layer (7) is fixedly connected to a carbon fiber layer (8), and the inner side surface of the carbon fiber layer (8) is fixedly connected to a graphene layer (9).

2. The high-toughness thin-walled stainless steel pipe according to claim 1, characterized in that: A wear-resistant layer (10) is fixedly connected to the outer surface of the outer tube (1).

3. The high-toughness thin-walled stainless steel pipe according to claim 1, characterized in that: A spiral reinforcing rib (11) is fixedly connected to the middle portion of the inner side surface of the inner tube (5).

4. The high-toughness thin-walled stainless steel pipe according to claim 1, characterized in that: A sealing groove (12) is provided on one side of the inner side surface of the inner tube (5), and a sealing ring (13) is fixedly connected to one side of the outer surface of the inner tube (5).

5. The high-toughness thin-wall stainless steel pipe according to claim 4, characterized in that: An internal thread groove (14) is formed on the inner wall of the sealing groove (12), and an external thread (15) is fixedly connected to the outer surface of the sealing ring (13).

6. The high-toughness thin-walled stainless steel pipe according to claim 1, characterized in that: Fixing rings (16) are fixedly connected to both sides of the outer surface of the outer tube (1).

7. The high-toughness thin-walled stainless steel pipe according to claim 6, characterized in that: Extension blocks (17) are fixedly connected to both sides of the outer surface of the fixing ring (16), and a connection hole (18) is provided on the outer surface of the extension block (17). Bolts (19) are threadedly connected to the inner part of the connection hole (18).

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