Steel pipe assembly

Abstract

The utility model discloses a steel pipe assembly, which relates to the technical field of steel pipe assemblies and comprises a pipe body, a first threaded pipe head is fixed at the left end of the pipe body, a baffle ring is fixed at the right end of the pipe body, and a second threaded pipe head is fixed at the right end of the baffle ring. The first threaded pipe head is sleeved with an inner threaded sleeve in a threaded mode, a first sealing ring is fixed to the end, away from the pipe body, of the first threaded pipe head, a second sealing ring is fixed to the end, away from the baffle ring, of the second threaded pipe head, and a sealing piece is connected to the second sealing ring. The first threaded pipe head and the second threaded pipe head are arranged at the two ends of the pipe body respectively, the first threaded pipe head is sleeved with the inner threaded sleeve in a threaded mode, and when two adjacent steel pipes are connected, the inner threaded sleeve is rotated, so that the second threaded pipe head on the adjacent steel pipes is sleeved with the inner threaded sleeve in a threaded mode; and the connection is quick and convenient, the consumed time is short, and meanwhile, the later disassembly and maintenance are convenient.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe assembly technology, specifically to a steel pipe assembly. Background Technology

[0002] Steel pipes are used for transporting fluids and powdery solids, exchanging heat energy, manufacturing mechanical parts and containers, and are also an economical steel material. Steel pipes have a hollow cross-section, with a length much greater than their diameter or circumference. They are classified by cross-sectional shape into circular, square, rectangular, and irregularly shaped steel pipes; by material into carbon structural steel pipes, low-alloy structural steel pipes, alloy steel pipes, and composite steel pipes; and by application into pipes for transportation, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, and high-pressure equipment, etc.

[0003] Currently, the existing method of connecting steel pipes usually involves welding flanges to the ends of the steel pipes and then using bolts to connect them, or directly welding the two steel pipes together. This results in low connection efficiency, long time consumption, and inconvenience for later disassembly and maintenance. Utility Model Content

[0004] The purpose of this invention is to provide a steel pipe assembly to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel pipe assembly, comprising:

[0006] The tube body has a first threaded tube head fixed at its left end, a retaining ring fixed at its right end, and a second threaded tube head fixed at its right end.

[0007] The first threaded pipe end is threaded with an internal threaded sleeve, and a first sealing ring is fixed at the end of the first threaded pipe end away from the pipe body. A second sealing ring is fixed at the end of the second threaded pipe end away from the retaining ring, and a sealing element is connected to the second sealing ring.

[0008] Preferably, the first sealing ring and the second sealing ring have the same structural dimensions, and an annular sealing groove is provided on the side of the first sealing ring and the second sealing ring that is far away from each other;

[0009] The sealing element includes a sealing sleeve, a spacer ring is fixed in the middle of the inner wall of the sealing sleeve, and annular sealing gaskets are fixed on both sides of the spacer ring. The annular sealing gaskets match the annular sealing groove. The two ends of the sealing sleeve are respectively sleeved on the first sealing ring and the second sealing ring that are close to each other. The annular sealing gaskets are nested in the annular sealing groove, thereby improving the sealing performance between two adjacent connected steel pipes.

[0010] Preferably, the sealing element is made entirely of rubber, which is easy to process and mold, and has good sealing performance.

[0011] Preferably, the outer ring diameter of the first sealing ring is smaller than the outer ring diameter of the first threaded pipe head, the outer ring diameter of the second sealing ring is smaller than the outer ring diameter of the second threaded pipe head, the inner cavity port diameter of the sealing sleeve is larger than the outer ring diameter of the first sealing ring, and the outer ring diameter of the sealing sleeve is smaller than the outer ring diameter of the first threaded pipe head.

[0012] Preferably, the diameter of the retaining ring is larger than the diameter of the second threaded pipe head, and the second threaded pipe head is fitted with a first sealing ring, which improves the sealing performance between the internal threaded sleeve and the retaining ring.

[0013] Preferably, a second sealing ring is nested inside the internal threaded sleeve, and the second sealing ring is fitted onto the pipe body, thereby improving the sealing performance between the internal threaded sleeve and the pipe body.

[0014] Preferably, the end of the internally threaded sleeve away from the first threaded pipe end has a through hole, and the internally threaded sleeve is slidably sleeved on the pipe body through the through hole.

[0015] Preferably, multiple handles are fixed at equal intervals on the outer side of the internal threaded sleeve to facilitate the application of force on the internal threaded sleeve, thereby facilitating the rotation of the internal threaded sleeve.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] 1. By providing a first threaded pipe head and a second threaded pipe head at both ends of the pipe body, and an internal threaded sleeve is threaded onto the first threaded pipe head, when connecting two adjacent steel pipes, the internal threaded sleeve is rotated so that the internal threaded sleeve is threaded onto the second threaded pipe head on the adjacent steel pipe, thus realizing the connection between the two adjacent steel pipes. The connection is quick and convenient, takes less time, and is also convenient for later disassembly and maintenance.

[0018] 2. By providing a first sealing ring at the end of the first threaded pipe end and a second sealing ring at the end of the second threaded pipe end, and providing a sealing element on the second sealing ring, when two adjacent steel pipes are connected, the two ends of the sealing sleeve on the sealing element are respectively fitted onto the adjacent first sealing ring and second sealing ring, and the annular sealing gasket is nested in the annular sealing groove, thereby improving the sealing performance between the two adjacent connected steel pipes. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the tube structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal threaded sleeve structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the sealing component structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the connection between adjacent pipes of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Pipe body; 2. First threaded pipe end; 3. Retaining ring; 4. Second threaded pipe end; 5. Internal threaded sleeve; 6. First sealing ring; 7. Second sealing ring; 8. Sealing element; 9. Annular sealing groove; 10. Sealing sleeve; 11. Spacer ring; 12. Annular sealing gasket; 13. First sealing ring; 14. Second sealing ring; 15. Through hole; 16. Handle. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] This utility model provides, for example Figures 1 to 5 The steel pipe assembly shown includes:

[0029] Pipe body 1, with a first threaded pipe head 2 fixed at the left end of pipe body 1, a retaining ring 3 fixed at the right end of pipe body 1, and a second threaded pipe head 4 fixed at the right end of retaining ring 3.

[0030] The first threaded pipe head 2 is threaded with an internal threaded sleeve 5. The end of the first threaded pipe head 2 away from the pipe body 1 is fixed with a first sealing ring 6. The end of the second threaded pipe head 4 away from the retaining ring 3 is fixed with a second sealing ring 7. A sealing element 8 is connected to the second sealing ring 7.

[0031] The first sealing ring 6 and the second sealing ring 7 have the same structural dimensions, and an annular sealing groove 9 is provided on the side of the first sealing ring 6 and the second sealing ring 7 that is far away from each other.

[0032] The sealing element 8 includes a sealing sleeve 10, a spacer ring 11 fixed in the middle of the inner wall of the sealing sleeve 10, and annular sealing gaskets 12 fixed on both sides of the spacer ring 11. The annular sealing gaskets 12 match the annular sealing groove 9. The two ends of the sealing sleeve 10 are respectively fitted onto the adjacent first sealing ring 6 and second sealing ring 7. The annular sealing gaskets 12 are nested in the annular sealing groove 9, thereby improving the sealing performance between two adjacent steel pipes.

[0033] The seal 8 is made entirely of rubber, which is easy to process and mold, and has good sealing performance.

[0034] The outer diameter of the first sealing ring 6 is smaller than the outer diameter of the first threaded pipe head 2, the outer diameter of the second sealing ring 7 is smaller than the outer diameter of the second threaded pipe head 4, the inner cavity port diameter of the sealing sleeve 10 is larger than the outer diameter of the first sealing ring 6, and the outer diameter of the sealing sleeve 10 is smaller than the outer diameter of the first threaded pipe head 2.

[0035] The diameter of the retaining ring 3 is larger than the diameter of the second threaded pipe head 4. The second threaded pipe head 4 is fitted with a first sealing ring 13, which improves the sealing performance between the internal threaded sleeve 5 and the retaining ring 3.

[0036] The internal threaded sleeve 5 is nested with a second sealing ring 14, which is fitted onto the pipe body 1, thereby improving the sealing performance between the internal threaded sleeve 5 and the pipe body 1.

[0037] The end of the internally threaded sleeve 5 away from the first threaded pipe head 2 has a through hole 15, and the internally threaded sleeve 5 is slidably sleeved on the pipe body 1 through the through hole 15.

[0038] Multiple handles 16 are fixed at equal intervals on the outer side of the internal threaded sleeve 5 to facilitate the application of force on the internal threaded sleeve 5, thereby facilitating the rotation of the internal threaded sleeve 5.

[0039] In this invention, when connecting two adjacent steel pipes, the first sealing ring 6 on one steel pipe is aligned with the second sealing ring 7 on the other steel pipe. The two ends of the sealing sleeve 10 on the sealing element 8 are respectively fitted onto the adjacent first sealing ring 6 and second sealing ring 7. The two annular sealing gaskets 12 inside the sealing element 8 are respectively nested into the annular sealing grooves 9 on the adjacent first sealing ring 6 and second sealing ring 7. Then, the internal threaded sleeve 5 on the adjacent ends of the two steel pipes is rotated so that the internal threaded sleeve 5 is threaded onto the second threaded pipe head 4 on the adjacent steel pipe. This achieves the connection between the two adjacent steel pipes. The connection is quick and convenient, with short time consumption, and facilitates subsequent disassembly and maintenance. At the same time, the setting of the sealing element 8 improves the sealing performance between the two adjacent connected steel pipes.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A steel pipe assembly, characterized in that, include: The tube body (1) has a first threaded tube head (2) fixed at its left end, a retaining ring (3) fixed at its right end, and a second threaded tube head (4) fixed at its right end. The first threaded pipe head (2) is threaded with an internal threaded sleeve (5), and the end of the first threaded pipe head (2) away from the pipe body (1) is fixed with a first sealing ring (6). The end of the second threaded pipe head (4) away from the retaining ring (3) is fixed with a second sealing ring (7), and a sealing element (8) is connected to the second sealing ring (7).

2. The steel pipe assembly according to claim 1, characterized in that: The first sealing ring (6) and the second sealing ring (7) have the same structural dimensions, and annular sealing grooves (9) are provided on the side of the first sealing ring (6) and the second sealing ring (7) that are far apart from each other; The sealing element (8) includes a sealing sleeve (10), a spacer ring (11) is fixed in the middle of the inner wall of the sealing sleeve (10), and an annular sealing gasket (12) is fixed on both sides of the spacer ring (11), and the annular sealing gasket (12) matches the annular sealing groove (9).

3. The steel pipe assembly according to claim 1, characterized in that: The sealing element (8) is made entirely of rubber.

4. A steel pipe assembly according to claim 2, characterized in that: The outer ring diameter of the first sealing ring (6) is smaller than the outer ring diameter of the first threaded pipe head (2), the outer ring diameter of the second sealing ring (7) is smaller than the outer ring diameter of the second threaded pipe head (4), the inner cavity port diameter of the sealing sleeve (10) is larger than the outer ring diameter of the first sealing ring (6), and the outer ring diameter of the sealing sleeve (10) is smaller than the outer ring diameter of the first threaded pipe head (2).

5. A steel pipe assembly according to claim 1, characterized in that: The diameter of the retaining ring (3) is larger than the diameter of the second threaded pipe head (4), and the second threaded pipe head (4) is fitted with a first sealing ring (13).

6. A steel pipe assembly according to claim 1, characterized in that: The internal threaded sleeve (5) is fitted with a second sealing ring (14), which is sleeved on the pipe body (1).

7. A steel pipe assembly according to claim 1, characterized in that: The internal threaded sleeve (5) has a through hole (15) at one end away from the first threaded pipe head (2), and the internal threaded sleeve (5) is slidably sleeved on the pipe body (1) through the through hole (15).

8. A steel pipe assembly according to claim 1, characterized in that: Multiple handles (16) are fixed at equal intervals on the outer side of the internal threaded sleeve (5).

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