Seamless steel tube capable of preventing falling
By introducing a connecting cylinder, annular groove, limiting groove, and retaining ring structure at the joint of seamless steel pipes, and using bolt connection, the problem of low strength at the joint of seamless steel pipes is solved, and a higher connection firmness and anti-detachment effect are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-03
AI Technical Summary
The existing seamless steel pipe joints have low strength and are prone to breakage and detachment, especially the flange connections which are prone to corrosion, leading to unstable connections.
The design employs a connecting cylinder with an annular groove and a limiting groove structure on the outer ring of the steel pipe. It is connected by an L-shaped limiting block and bolts, and combined with the design of a retaining ring and mounting bolts, it enhances the robustness and protection of the steel pipe connection.
It improves the firmness of steel pipe connections, prevents them from falling off, enhances the strength and stability of the connections, and avoids breakage caused by corrosion.
Smart Images
Figure CN224079746U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seamless steel pipe technology, specifically to a seamless steel pipe designed to prevent detachment. Background Technology
[0002] Seamless steel pipes are made by piercing a single round steel bar, and are steel pipes without weld seams on their surface. Based on the production method, seamless steel pipes can be classified into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, and jacking pipes, etc.
[0003] Most existing seamless steel pipes are connected by directly welding the connecting flange to the end of the steel pipe and then using bolts and other fasteners. Although this method is relatively simple, the connection between the flanges must ensure that the internal holes are aligned. However, the steel pipe itself is heavy, making it difficult to adjust the angle. Furthermore, the connection point relies solely on the flange, resulting in low strength. If the connecting bolts rust or are damaged, the connection point can easily break and fall off. Therefore, a seamless steel pipe designed to prevent detachment is proposed to solve the problem of low strength and easy breakage at the connection point of existing steel pipes. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a seamless steel pipe that prevents detachment, thus solving the aforementioned problems.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a seamless steel pipe for preventing detachment, comprising a connecting cylinder, wherein a first steel pipe and a second steel pipe are disposed in the inner cavity of the connecting cylinder, the first steel pipe and the second steel pipe are connected by a connecting mechanism, and the connecting cylinder is connected to the first steel pipe and the second steel pipe by an installation mechanism. Both the outer rings of the first steel pipe and the second steel pipe are provided with annular grooves, and the outer surface of the connecting cylinder is symmetrically provided with grooves. A limiting groove is provided on the inner wall of the groove, and an L-shaped limiting block is disposed in the inner cavity of the limiting groove. A fixing block is fixedly connected to the inner cavity of the groove, and a first bolt is threaded through and screwed onto one end of the fixing block. A limiting hole is provided on the inner wall of the limiting groove, and a threaded hole adapted to the first bolt is provided through one end of the L-shaped limiting block.
[0008] Preferably, the connecting mechanism includes a connecting groove formed at one end of a first steel pipe, a connecting ring fixedly connected to the other end of the first steel pipe, and a sealing ring provided in the inner cavity of the connecting groove.
[0009] Preferably, the inner ring of the connecting cylinder is provided with a sealing ring gasket, so that when the first bolt is removed, the L-shaped limiting block can be taken out from the inner cavity of the limiting groove.
[0010] Preferably, the installation mechanism includes four installation slots opened at one end of the connecting cylinder, and the inner cavity of the installation slot is provided with an installation block, which is fixedly connected to the outer ring of the first steel pipe or the second steel pipe.
[0011] Preferably, one end of the mounting block is threaded with a mounting bolt, the mounting bolt extends to the inner wall of the connecting cylinder and the two are threaded together, the included angle between the mounting grooves is 90 degrees, and both ends of the connecting cylinder are rotatably connected with retaining rings.
[0012] Preferably, one end of the retaining ring has four slots through it, and one end of the retaining ring is threaded with a second bolt. Both the retaining ring and the outer ring of the connecting cylinder are marked with marking lines. When the marking lines of the retaining ring and the outer ring of the connecting cylinder are aligned, the second bolt passes through to the inner wall of the connecting cylinder and the two are threaded together.
[0013] (III) Beneficial Effects
[0014] 1. Insert the first and second steel pipes into the two ends of the connecting cylinder and connect them using the connecting mechanism. Then, connect the connecting cylinder to the first and second steel pipes through the installation mechanism. Next, insert the L-shaped limiting block into the limiting groove and into the annular groove. Then, screw the first bolt into the fixing block in the through groove and into the screw hole in the L-shaped limiting block. When the end of the first bolt enters the limiting hole, the L-shaped limiting block, in conjunction with the annular groove, squeezes the first steel pipe toward the second steel pipe, improving the firmness of the steel pipe connection and solving the problem of low strength and easy breakage and detachment of existing steel pipe connections.
[0015] 2. For this seamless steel pipe that prevents detachment, after rotating the retaining ring to align with the mounting groove, insert the mounting block on the first steel pipe through the groove into the mounting groove, and screw in the second bolt to connect the first steel pipe to the connecting cylinder. Similarly, after connecting the second steel pipe and the connecting cylinder, rotate the marking line to align and screw in the second bolt. The solid area of the retaining ring can cover the mounting groove, which is convenient for protecting the mounting bolts and further improves the firmness of this seamless steel pipe that prevents detachment. Attached Figure Description
[0016] Figure 1 This is a structural diagram of the present utility model;
[0017] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0018] Figure 3 This is a structural diagram of the present utility model;
[0019] Figure 4 This is a cross-sectional view of the structure of this utility model.
[0020] In the diagram: 1. Connecting cylinder; 2. First steel pipe; 3. Second steel pipe; 4. Connecting mechanism; 401. Connecting groove; 402. Connecting ring; 403. Sealing ring; 5. Installation mechanism; 501. Installation groove; 502. Installation block; 503. Installation bolt; 504. Retaining ring; 505. Groove; 506. Second bolt; 507. Marking line; 6. Ring groove; 7. Groove; 8. Limiting groove; 9. L-shaped limiting block; 10. Fixing block; 11. First bolt; 12. Limiting hole. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example: Please refer to Figure 1-4 A seamless steel pipe for preventing detachment includes a connecting cylinder 1. The inner cavity of the connecting cylinder 1 is provided with a first steel pipe 2 and a second steel pipe 3. The first steel pipe 2 and the second steel pipe 3 are connected by a connecting mechanism 4. The connecting cylinder 1 is connected to the first steel pipe 2 and the second steel pipe 3 by an installation mechanism 5. The outer rings of the first steel pipe 2 and the second steel pipe 3 are both provided with annular grooves 6. The outer side of the connecting cylinder 1 is symmetrically provided with grooves 7. The inner wall of the grooves 7 is provided with limiting grooves 8. The inner cavity of the limiting grooves 8 is provided with L-shaped limiting blocks 9. The inner cavity of the grooves 7 is fixedly connected with a fixing block 10. One end of the fixing block 10 is threaded through and screwed with a first bolt 11. The inner wall of the limiting grooves 8 is provided with limiting holes 12. One end of the L-shaped limiting block 9 is provided with a threaded hole that matches the first bolt 11.
[0023] Furthermore, the connecting mechanism 4 includes a connecting groove 401 opened at one end of the first steel pipe 2, and a connecting ring 402 fixedly connected to the other end of the first steel pipe 2. A sealing ring 403 is provided in the inner cavity of the connecting groove 401. When connecting the first steel pipe 2 and the second steel pipe 3, the connecting ring 402 can be inserted into the connecting groove 401. Then, when the two steel pipes are brought close together by the structure such as the L-shaped limiting block 9 and the first bolt 11 in conjunction with the ring groove 6, the sealing ring 403 makes the two steel pipes form a compressive force, thereby improving the connection effect of the steel pipes.
[0024] Furthermore, the inner ring of the connecting cylinder 1 is provided with a sealing ring gasket, so that when the first bolt 11 is removed, the L-shaped limiting block 9 can be taken out from the inner cavity of the limiting groove 8.
[0025] Furthermore, the installation mechanism 5 includes four installation slots 501 opened at one end of the connecting cylinder 1. The inner cavity of the installation slot 501 is provided with an installation block 502, which is fixedly connected to the outer ring of the first steel pipe 2 or the second steel pipe 3.
[0026] Furthermore, one end of the mounting block 502 is threaded with a mounting bolt 503, which penetrates into the inner wall of the connecting cylinder 1 and the two are threaded together. The included angle between the mounting grooves 501 is ninety degrees, and both ends of the connecting cylinder 1 are rotatably connected with retaining rings 504.
[0027] Furthermore, one end of the retaining ring 504 has four slots 505 through it, and one end of the retaining ring 504 is threaded with a second bolt 506. Both the retaining ring 504 and the outer ring of the connecting cylinder 1 are marked with a line 507. When the retaining ring 504 and the outer ring of the connecting cylinder 1 are aligned with the line 507, the second bolt 506 passes through the inner wall of the connecting cylinder 1 and the two are threaded together. After the retaining ring 504 is rotated to the slot 505 and the mounting groove 501 are connected, the mounting block 502 on the first steel pipe 2 is passed through the slot 505 and into the mounting groove 501. The second bolt 506 is then screwed in to connect the first steel pipe 2 and the connecting cylinder 1. Similarly, after connecting the second steel pipe 3 and the connecting cylinder 1, the line 507 is rotated to the alignment and the second bolt 506 is screwed in. The solid area of the retaining ring 504 can cover the mounting groove 501, which is convenient for protecting the mounting bolt 503 and further improving the firmness of this seamless steel pipe that prevents it from falling off.
[0028] Working principle: When using this seamless steel pipe to prevent detachment, the first steel pipe 2 and the second steel pipe 3 are inserted into the two ends of the connecting cylinder 1 and connected by the connecting mechanism 4. Then, the connecting cylinder 1 is connected to the first steel pipe 2 and the second steel pipe 3 by the installation mechanism 5. Next, the L-shaped limiting block 9 is inserted into the limiting groove 8 and enters the annular groove 6. Then, the first bolt 11 is screwed into the fixing block 10 in the through groove 7 and into the screw hole in the L-shaped limiting block 9. When the end of the first bolt 11 enters the limiting hole 12, the L-shaped limiting block 9, together with the annular groove 6, presses the first steel pipe 2 towards the second steel pipe 3, improving the firmness of the steel pipe connection. This invention solves the problem of low strength and easy breakage and detachment at existing steel pipe joints. After rotating the retaining ring 504 to connect with the groove 505 and the mounting groove 501, the mounting block 502 on the first steel pipe 2 is passed through the groove 505 and into the mounting groove 501. The second bolt 506 is then screwed in to connect the first steel pipe 2 to the connecting cylinder 1. Similarly, after connecting the second steel pipe 3 and the connecting cylinder 1, the marking line 507 is rotated to be aligned and the second bolt 506 is screwed in. The solid area of the retaining ring 504 can cover the mounting groove 501, which is convenient for protecting the mounting bolt 503 and further improves the firmness of this seamless steel pipe that prevents detachment.
[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A seamless steel pipe for preventing peeling, comprising a connecting cylinder (1), characterized in that: The inner cavity of the connecting cylinder (1) is provided with a first steel pipe (2) and a second steel pipe (3), the first steel pipe (2) and the second steel pipe (3) are connected through a connecting mechanism (4), the connecting cylinder (1) and the first steel pipe (2) and the second steel pipe (3) are connected through a mounting mechanism (5), the outer circle of the first steel pipe (2) and the second steel pipe (3) is provided with a ring groove (6), the outer part of the connecting cylinder (1) is symmetrically provided with a recess (7), the inner wall of the recess (7) is provided with a limiting groove (8), the limiting groove (8) is provided with an L-shaped limiting block (9) in the inner cavity, the recess (7) is fixedly connected with a fixed block (10), one end of the fixed block (10) penetrates and is screwed with a first bolt (11), the inner wall of the limiting groove (8) is provided with a limiting hole (12), one end of the L-shaped limiting block (9) is provided with a screw hole matched with the first bolt (11).
2. The seamless steel pipe according to claim 1, wherein: The connecting mechanism (4) comprises a connecting groove (401) formed at one end of the first steel pipe (2), and the other end of the first steel pipe (2) is fixedly connected with a connecting ring (402), and the inner cavity of the connecting groove (401) is provided with a sealing ring (403).
3. The seamless steel pipe according to claim 1, wherein: The inner circle of the connecting cylinder (1) is provided with a sealing ring pad, and the L-shaped limiting block (9) can be taken out from the inner cavity of the limiting groove (8) when the first bolt (11) is removed.
4. The seamless steel pipe according to claim 1, wherein: The mounting mechanism (5) comprises four mounting grooves (501) formed at one end of the connecting cylinder (1), the inner cavity of the mounting groove (501) is provided with a mounting block (502), and the mounting block (502) is fixedly connected to the outer circle of the first steel pipe (2) or the second steel pipe (3).
5. The seamless steel tube according to claim 4, wherein: One end of the mounting block (502) penetrates and is screwed with a mounting bolt (503), the mounting bolt (503) penetrates to the inner wall of the connecting cylinder (1) and is screwed, the included angle between the mounting grooves (501) is ninety degrees, and the both ends of the connecting cylinder (1) are rotatably connected with a blocking ring (504).
6. The seamless steel tube according to claim 5, wherein: Four notches (505) are formed at one end of the blocking ring (504), the second bolt (506) penetrates and is screwed at one end of the blocking ring (504), the blocking ring (504) and the outer circle of the connecting cylinder (1) are provided with a mark line (507), and when the blocking ring (504) and the mark line (507) of the outer circle of the connecting cylinder (1) are aligned, the second bolt (506) penetrates to the inner wall of the connecting cylinder (1) and is screwed.