Stainless steel pipe convenient to install

Abstract

The utility model discloses a stainless steel pipe convenient to install, which relates to the technical field of pipe fittings and comprises a steel pipe main body, a first insertion block, a second insertion block and a lap joint plate are respectively fixed on the outer ring of the steel pipe main body, a first insertion groove is arranged on the outer surface of the lap joint plate, and second insertion grooves are arranged on two sides of the lap joint plate. Mounting grooves are formed in the two sides of the outer surface of the lap joint plate, and bolts are arranged in the mounting grooves. Through the arrangement of the first inserting blocks, the second inserting blocks, the lap joint plates, the first inserting grooves and the second inserting grooves, the two steel pipe main bodies are assembled in the radial direction, at the moment, the first inserting blocks and the second inserting blocks on the two steel pipe main bodies are inserted into the first inserting grooves and the second inserting grooves of the two steel pipe main bodies, and therefore lap joint of the two steel pipe main bodies is completed; a first inserting block and a second inserting block are matched with a first inserting groove and a second inserting groove, so that axial tension at the joint of the steel pipe main bodies can be borne, and axial separation of the two steel pipe main bodies is avoided; and rapid installation is convenient, and the phenomena of diameter expansion and inward shrinkage do not occur.

Description

Technical Field

[0001] This utility model relates to the field of pipe fittings technology, specifically to stainless steel pipes that are easy to install. Background Technology

[0002] Stainless steel pipes are classified by material into ordinary carbon steel pipes, high-quality carbon structural steel pipes, alloy structural pipes, alloy steel pipes, bearing steel pipes, and bimetallic composite pipes, plated and coated pipes, etc., to save precious metals and meet special requirements. Stainless steel pipes come in many varieties and have different uses, widely used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as in mechanical structural components.

[0003] When assembling some existing stainless steel pipes, the connection surfaces exhibit either expansion or contraction, such as flange connections. To prevent cracking of walls and floors due to thermal expansion and contraction of the steel pipes during installation, gaps need to be left between the pipes and the building. The presence of expansion areas increases the groove area, making the process more complicated, or requiring the use of supports with larger spans, especially when multiple pipes are horizontally distributed. If the connection surfaces are contracted, it will affect the pressure and flow velocity of the water, resulting in energy consumption. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a stainless steel pipe that is easy to install, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a stainless steel pipe that is easy to install, comprising a pipe body, wherein a first insert block, a second insert block and a lap plate are fixed on the outer ring of the pipe body, and a first slot is provided on the outer surface of the lap plate, and a second slot is provided on both sides of the lap plate. An installation groove is provided on both sides of the outer surface of the lap plate, and a bolt is provided inside the installation groove, and a nut is connected to the outside of the bolt.

[0006] By adopting the above technical solution, during installation, the workers assemble the two steel pipe bodies radially. At this time, the first and second inserts on the two steel pipe bodies are inserted into each other's first and second slots, thereby completing the overlap of the two steel pipe bodies. The first and second inserts, in conjunction with the first and second slots, can withstand the axial tensile force at the connection point of the steel pipe bodies, preventing the two steel pipe bodies from axially separating. After the two steel pipe bodies are overlapped, it is only necessary to pass two bolts through the four mounting slots and connect them with nuts, and then tighten the bolts. The bolts bear the radial tensile force on the overlap plate, thereby preventing the two steel pipe bodies from radially separating.

[0007] Furthermore, the main body of the steel pipe, the first insert block, the second insert block, and the lap plate are all made of stainless steel.

[0008] By adopting the above technical solution, the main body of the steel pipe, the first insert, the second insert, and the lap plate are made of stainless steel, which has good corrosion resistance and can be used for a long time.

[0009] Furthermore, the first and second insert blocks are fixedly connected to the steel pipe body by integral molding, and the overlapping plate is fixedly connected to the steel pipe body by welding.

[0010] By adopting the above technical solution, during production, workers cut grooves on the outer ring of both ends of the steel pipe body, and the remaining raised areas are the first and second inserts. Each lap plate is provided with two first slots and four second slots. Workers attach the lap plate to one end of the steel pipe body, at which point one of the first inserts on the steel pipe body enters one of the first slots, and two of the second inserts enter two of the second slots. Subsequently, workers weld the lap plate to the steel pipe body for fixation. During this process, the welding surface of the lap plate is increased by the first and second inserts, thereby improving the welding strength.

[0011] Furthermore, the cross-section of the overlapping plate is semi-circular.

[0012] By adopting the above technical solution, the semi-circular overlapping plate facilitates the assembly of two steel pipe bodies in the radial direction, making the operation simple and convenient.

[0013] Furthermore, the first plug is adapted to the first slot, and the first slot is adapted to half of the area of ​​the second plug.

[0014] By adopting the above technical solution, the workers assemble the two steel pipe bodies in the radial direction. At this time, the first and second inserts on the two steel pipe bodies are inserted into each other's first and second slots, thereby completing the overlap of the two steel pipe bodies. Furthermore, the first and second inserts, in conjunction with the first and second slots, can withstand the axial tensile force at the connection of the steel pipe bodies, thus preventing the two steel pipe bodies from separating axially.

[0015] Furthermore, there are four of each of the first and second insert blocks, which are divided into two groups, and the first and second insert blocks are staggered.

[0016] By adopting the above technical solution, the number of support points is increased by increasing the number of the first and second inserts, thereby improving the strength to withstand axial tensile forces.

[0017] Furthermore, there are two overlapping plates, and the first slot has four slots and the second slot has eight slots.

[0018] By adopting the above technical solution, the number of support points is increased by increasing the number of first and second slots, thereby improving the strength to withstand axial tensile forces.

[0019] Furthermore, the inner ring of the steel pipe body is connected with a sealing ring, and the sealing ring is made of EPDM rubber or fluororubber.

[0020] By adopting the above technical solution, the joint between two stainless steel pipes is filled with a sealing ring, thereby preventing fluid leakage.

[0021] Furthermore, the longitudinal section of the mounting groove is semi-hexagonal, and the diameter of the bolt and the width of the nut are both smaller than the width of the mounting groove.

[0022] By adopting the above technical solution, during installation, since the mounting groove is semi-hexagonal, the operator only needs to use one wrench to rotate the bolt, without needing to use another wrench to limit the nut to prevent it from rotating with the bolt. In addition, the size of the mounting groove is larger than the size of the bolt, so as to avoid the mounting groove from hindering the rotation of the bolt.

[0023] In summary, the present invention has the following main advantages:

[0024] 1. This utility model assembles two steel pipe bodies radially by setting up a first insert block, a second insert block, an overlapping plate, a first slot, and a second slot. At this time, the first insert block and the second insert block on the two steel pipe bodies are inserted into each other's first slot and second slot, thereby completing the overlapping of the two steel pipe bodies. Moreover, the first insert block and the second insert block, together with the first slot and the second slot, can withstand the axial tensile force at the connection of the steel pipe bodies, avoiding axial separation of the two steel pipe bodies; it is convenient and quick to install, and there is no phenomenon of diameter expansion or inward shrinkage.

[0025] 2. This utility model, through the setting of mounting slots, bolts and nuts, allows two steel pipe bodies to be overlapped. After the two bolts are connected to the nuts through the four mounting slots, the bolts are tightened. The bolts bear the radial tensile force on the overlapping plate, thereby preventing the two steel pipe bodies from separating radially. Compared with traditional flange connections, the number of operating bolts is reduced, making the operation simple and convenient; it also facilitates further positioning. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the overlapping plate structure during installation of this utility model;

[0028] Figure 3 This is a schematic diagram of the overlapping plate structure after installation of this utility model;

[0029] Figure 4 This is a schematic diagram of the main structure of the steel pipe of this utility model.

[0030] In the diagram: 1. Steel pipe body; 2. First insert block; 3. Second insert block; 4. Overlap plate; 5. First slot; 6. Second slot; 7. Sealing ring; 8. Mounting groove; 9. Bolt; 10. Nut. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The embodiments of this utility model will be described below based on its overall structure.

[0033] Example 1:

[0034] Easy-to-install stainless steel pipes, such as Figures 1-4 As shown, the device includes a steel pipe body 1. The steel pipe body 1 is characterized by having a first insert 2, a second insert 3, and an overlapping plate 4 fixed to its outer ring. All components, including the steel pipe body 1, the first insert 2, the second insert 3, and the overlapping plate 4, are made of 304 stainless steel. Four first inserts 2 and four second inserts 3 are provided, arranged in two groups, with the first inserts 2 and second inserts 3 staggered. The first inserts 2 and second inserts 3 are integrally formed and fixedly connected to the steel pipe body 1. The overlapping plate 4 is fixedly connected to the steel pipe body 1 by welding. The overlapping plate 4 has a semi-circular cross-section. A first slot 5 is provided on the outer surface of the overlapping plate 4, and the first insert 2 is fitted into the first slot 5. Second slots 6 are provided on both sides of the overlapping plate 4, and the first slots 5 are fitted into half of the second insert 3. There are two overlapping plates 4 and four first slots 5. The second slot 6 has eight slots. Mounting grooves 8 are provided on both sides of the outer surface of the overlapping plate 4. Bolts 9 are installed inside the mounting grooves 8, and nuts 10 are connected to the outside of the bolts 9. During installation, the workers assemble the two steel pipe bodies 1 radially. At this time, the first insert 2 and the second insert 3 on the two steel pipe bodies 1 are inserted into each other's first slots 5 and second slots 6, thus completing the overlap of the two steel pipe bodies 1. The first insert 2 and the second insert 3, in conjunction with the first slots 5 and second slots 6, can withstand the axial tensile force at the connection point of the steel pipe bodies 1, preventing the two steel pipe bodies 1 from separating axially. After the two steel pipe bodies 1 are overlapped, simply pass the two bolts 9 through the four mounting grooves 8 and connect them to the nuts 10, then tighten the bolts 9. The bolts 9 bear the radial tensile force on the overlapping plate 4, thus preventing the two steel pipe bodies 1 from separating radially.

[0035] See Figure 1 , Figure 2 and Figure 4In the above embodiment, a sealing ring 7 is connected to the inner ring of the steel pipe body 1. The sealing ring 7 is made of EPDM rubber or fluororubber. The sealing ring 7 fills the joint when the two stainless steel pipes are joined, thereby preventing fluid leakage.

[0036] Example 2:

[0037] Based on the above embodiment one, the following settings are now made to further facilitate installation.

[0038] See Figures 1-3 In the above embodiment, the longitudinal section of the mounting groove 8 is semi-hexagonal. The diameter of the bolt 9 and the width of the nut 10 are both smaller than the width of the mounting groove 8. Since the mounting groove 8 is semi-hexagonal, the operator only needs to rotate the bolt 9 with one wrench, without needing to use another wrench to limit the nut 10 to prevent it from rotating with the bolt 9. In addition, the size of the mounting groove 8 is larger than the size of the bolt 9, so as to avoid the mounting groove 8 from hindering the rotation of the bolt 9.

[0039] The implementation principle of this utility model is as follows: First, during the production of this stainless steel pipe, the workers cut grooves on the outer rings at both ends of the main body 1 of the pipe, and the remaining raised areas are the first insert 2 and the second insert 3; each overlapping plate 4 is provided with two first slots 5 and four second slots 6. The workers attach the overlapping plate 4 to one end of the main body 1 of the pipe, at which time one of the first inserts 2 on the main body 1 of the pipe enters one of the first slots 5, and two of the second inserts 3 enter two of the second slots 6; then the workers weld the overlapping plate 4 to the main body 1 of the pipe, during which the welding surface of the overlapping plate 4 is increased by the first inserts 2 and the second inserts 3, thereby improving the welding strength; finally, the workers insert the sealing ring 7 into the gap between the main body 1 of the pipe and the overlapping plate 4 to facilitate sealing of the joint during subsequent installation;

[0040] During installation, the workers assemble the two steel pipe bodies 1 radially. At this time, the first insert 2 and the second insert 3 on the two steel pipe bodies 1 are inserted into the first slot 5 and the second slot 6 of each other, thereby completing the overlap of the two steel pipe bodies 1. The first insert 2 and the second insert 3, together with the first slot 5 and the second slot 6, can withstand the axial tensile force at the connection of the steel pipe bodies 1, thus preventing the two steel pipe bodies 1 from separating axially. After the two steel pipe bodies 1 are overlapped, it is only necessary to pass the two bolts 9 through the four mounting slots 8 and connect them with the nuts 10, and then tighten the bolts 9. The bolts 9 can withstand the radial tensile force on the overlapping plate 4, thus preventing the two steel pipe bodies 1 from separating radially.

[0041] During installation, since the mounting groove 8 is semi-hexagonal, the operator only needs to use one wrench to rotate the bolt 9, without needing to use another wrench to limit the nut 10 to prevent it from rotating with the bolt 9. In addition, the size of the mounting groove 8 is larger than the size of the bolt 9, so as to avoid the mounting groove 8 obstructing the rotation of the bolt 9.

[0042] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A stainless steel pipe for easy installation comprising a pipe body (1) characterized in that: The steel pipe body (1) is respectively fixed with a first plug (2), a second plug (3) and a lap plate (4), and the outer surface of the lap plate (4) is provided with a first slot (5), the two sides of the lap plate (4) are provided with a second slot (6), the outer surface of the lap plate (4) is provided with a mounting groove (8) on both sides, and the mounting groove (8) is provided with a bolt (9) inside, and the bolt (9) is connected with a nut (10) outside.

2. The easy-to-install stainless steel pipe according to claim 1, characterized by: The steel pipe body (1), the first plug (2), the second plug (3) and the lap plate (4) are all made of 304 stainless steel material.

3. The easy-to-install stainless steel pipe according to claim 2, characterized by: The first plug (2) and the second plug (3) are fixedly connected with the steel pipe body (1) by integral molding, and the lap plate (4) is fixedly connected with the steel pipe body (1) by welding.

4. The easy-to-install stainless steel pipe according to claim 3, characterized by: The cross section of the lap plate (4) is a semicircular ring.

5. The easy-to-install stainless steel pipe according to claim 3, characterized by: The first plug (2) is matched with the first slot (5), and the first slot (5) is matched with half of the second plug (3).

6. The easy-to-install stainless steel pipe according to claim 5, characterized by: The first plug (2) and the second plug (3) are both provided with four, which are divided into two groups, and the first plug (2) and the second plug (3) are staggered.

7. The easy-to-install stainless steel pipe according to claim 5, characterized by: The lap plate (4) is provided with two, and the first slot (5) is provided with four, and the second slot (6) is provided with eight.

8. The easy-to-install stainless steel pipe according to claim 1, characterized by: The inner ring of the steel pipe body (1) is connected with a sealing ring (7), and the sealing ring (7) is made of ethylene propylene rubber or fluorine rubber material.

9. The easy-to-install stainless steel pipe according to claim 1, characterized by: The longitudinal section of the mounting groove (8) is a semihexagonal, and the diameter of the bolt (9) and the width of the nut (10) are both smaller than the width of the mounting groove (8).

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