Seamless steel tube convenient to seal

Abstract

The utility model discloses a seamless steel tube convenient to seal, which relates to the technical field of seamless steel tubes and comprises two groups of seamless steel tubes, sealing devices are arranged on the outer sides of the two groups of seamless steel tubes, and each sealing device comprises an upper sealing seat and a lower sealing seat. First bolts are arranged between the upper sealing base and the lower sealing base, the upper sealing base and the lower sealing base are in bolted connection through the first bolts, supporting devices are arranged on the sealing device, the number of the supporting devices is eight, and the supporting devices are symmetrically arranged on the upper sealing base and the lower sealing base in a four-four mode. The sealing device comprises a connecting plate and an adjusting device. According to the scheme, the problems that seamless steel pipes of different sizes cannot be effectively sealed, and the sealing performance can be reduced due to the fact that the sealing device has a certain weight are solved.

Description

Technical Field

[0001] This utility model relates to the field of seamless steel pipe technology, specifically to a seamless steel pipe that is easy to seal. Background Technology

[0002] Seamless steel pipes are steel pipes formed by piercing a single round steel bar, and have no weld seams on their surface. Based on the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, and jacking pipes, etc. Seamless steel pipes are mainly used as oil and geological drilling pipes, cracking pipes for petrochemicals, boiler tubes, bearing tubes, and high-precision structural steel pipes for automobiles, tractors, and aviation.

[0003] A seamless steel pipe for easy sealing, as disclosed in announcement number CN213598766U, comprises a fixed pipe with fixed blocks fixedly connected to its front and rear surfaces. A rotating groove is formed on the front surface of each fixed block, with limit holes at both the top and bottom. A fixed plate is movably connected inside the rotating groove, with limit posts fixedly connected to its top and bottom. One end of the fixed plate has a telescopic opening. This seamless steel pipe for easy sealing, through the cooperation of a fixed ring and threaded posts, allows the internal space of the fixed ring to increase when it slides upward, enabling the sealing of sealing pipes of different sizes. Conversely, when the threaded posts rotate, the internal space of the fixed ring decreases, allowing for effective and convenient clamping and sealing of the seamless pipe.

[0004] The aforementioned device cannot effectively seal seamless steel pipes of different sizes during use, and the weight of the sealing device reduces its sealing performance. Therefore, we propose a seamless steel pipe that is easy to seal in order to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a seamless steel pipe that is easy to seal, so as to solve the problems mentioned in the background art that the existing seamless steel pipes of different sizes cannot be effectively sealed, and the sealing device has a certain weight which will reduce the sealing performance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a seamless steel pipe that is easy to seal, comprising two sets of seamless steel pipes, each set having a sealing device on its outer side. Each sealing device includes an upper sealing seat and a lower sealing seat, with a first bolt between the upper and lower sealing seats, and the upper and lower sealing seats are bolted together by the first bolt. The sealing device is equipped with a support device, comprising eight sets symmetrically arranged in four groups on the upper and lower sealing seats. The sealing device includes a connecting plate and an adjusting device.

[0007] Preferably, the support device includes a fixed tube, a telescopic tube, a pressing block, and a first hole. The fixed tube is disposed on the sealing device, the telescopic tube is disposed inside the fixed tube, the first hole is disposed on the outside of the fixed tube, and multiple sets of the first hole are provided. The pressing block is disposed on the telescopic tube and is disposed inside the first hole.

[0008] Preferably, the adjustment device includes a V-shaped clamp, a movable plate, a guide post, a movable tube, a handle, a limiting device, and an auxiliary adjustment device. The movable plate is disposed inside the connecting plate. A V-shaped clamp is disposed at the lower end of the movable plate. An auxiliary adjustment device is disposed at the upper end of the movable plate. A guide post is disposed on the outer side of the auxiliary adjustment device. The upper end of the guide post extends through and to the upper end of the connecting plate. Four sets of guide posts and auxiliary adjustment devices are provided. A movable tube is disposed between the auxiliary adjustment devices. A second hole is opened on the movable tube, and a set of multiple holes are provided in the second hole. The upper end of the movable tube extends through and to the upper end of the connecting plate. A handle is disposed at the upper end of the movable tube. A limiting device is disposed at the upper end of the connecting plate.

[0009] Preferably, the auxiliary adjustment device includes a spring and a damping rod, the damping rod is disposed inside the spring, one end of the spring is disposed on the movable plate, and the other end of the spring is disposed on the connecting plate.

[0010] Preferably, the limiting device includes a first protrusion, a second protrusion, a second bolt, an internal thread, and an external thread. The first protrusion is provided on one side of the movable tube, and the second protrusion is provided on the other side of the movable tube. The second bolt is provided in the second hole, and the rear end of the second bolt is provided with an external thread. The first protrusion is provided with an internal thread, and the second bolt is threadedly connected to the internal thread provided in the first protrusion through the external thread.

[0011] Preferably, a pad is provided at the lower end of each telescopic tube.

[0012] Preferably, a sealing film is provided on the outer side of the V-shaped clamp.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model solves the problem of ineffective sealing of seamless steel pipes of different sizes by setting an adjustment device inside the sealing device, adjusting the V-shaped clamp set at the lower end of the movable plate by the movable tube inside the adjustment device in conjunction with the auxiliary adjustment device, and fixing it by the limiting device set at the upper end of the connecting plate.

[0015] 2. By providing support devices on both the upper and lower sealing seats, the overall structure is supported. The height of the support device can also be adjusted by pressing the pressing block inside the support device, thus solving the problem that the sealing performance is reduced due to the weight of the sealing device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is the right view of the present invention;

[0018] Figure 3 This is a front view of the present invention;

[0019] Figure 4 This is a cross-sectional view of the present invention;

[0020] In the diagram: 1. Seamless steel pipe; 2. Sealing device; 21. Upper sealing seat; 22. Lower sealing seat; 3. Support device; 31. Fixed pipe; 32. Telescopic pipe; 33. Pressing block; 34. First hole; 4. Pad; 5. Bolt; 6. V-clamp; 7. Movable plate; 8. Connecting plate; 9. Guide column; 10. Movable pipe; 11. Spring; 12. Damping rod; 13. Handle; 14. Limiting device; 141. First protrusion; 142. Second protrusion; 143. Second bolt; 144. Internal thread; 145. External thread; 15. Second hole; 16. Sealing membrane. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4This utility model provides an embodiment of a seamless steel pipe that is easy to seal, comprising a seamless steel pipe 1, with two sets of seamless steel pipe 1. A sealing device 2 is provided on the outer side of each set of seamless steel pipe 1. The sealing device 2 includes an upper sealing seat 21 and a lower sealing seat 22, with a first bolt 5 between the upper sealing seat 21 and the lower sealing seat 22, and the upper sealing seat 21 and the lower sealing seat 22 are bolted together by the first bolt 5. A support device 3 is provided on the sealing device 2, with eight sets of support devices 3 arranged symmetrically in four groups on the upper sealing seat 21 and the lower sealing seat 22. The sealing device 2 includes a connecting plate 8 and an adjusting device. An adjustment device is provided inside the device 2. The V-shaped clamp 6 at the lower end of the movable plate 7 is adjusted by the movable tube 10 inside the adjustment device in conjunction with the auxiliary adjustment device, and is fixed by the limiting device 14 at the upper end of the connecting plate 8. This solves the problem of not being able to effectively seal seamless steel pipes 1 of different sizes. Support devices 3 are provided on both the upper sealing seat 21 and the lower sealing seat 22. The support devices 3 provide support for the whole. The height of the support device 3 can also be adjusted by pressing the pressing block 33 inside the support device 3. This solves the problem that the sealing device 2 has a certain weight, which will reduce the sealing performance.

[0023] Please see Figure 2 The support device 3 includes a fixed tube 31, a telescopic tube 32, a pressing block 33, and a first hole 34. The fixed tube 31 is installed on the sealing device 2, and the telescopic tube 32 is installed inside the fixed tube 31. The first hole 34 is provided on the outside of the fixed tube 31, and multiple sets of the first hole 34 are provided. The pressing block 33 is installed on the telescopic tube 32 and is installed inside the first hole 34. By providing support devices 3 on both the upper sealing seat 21 and the lower sealing seat 22, the support devices 3 provide support for the whole. The height of the support device 3 can also be adjusted by pressing the pressing block 33 inside the support device 3, thereby solving the problem that the sealing device 2 will reduce the sealing performance due to its weight.

[0024] Please see Figure 3 The adjustment device includes a V-shaped clamp 6, a movable plate 7, a guide post 9, a movable tube 10, a handle 13, a limiting device 14, and an auxiliary adjustment device. The movable plate 7 is located inside the connecting plate 8. The V-shaped clamp 6 is located at the lower end of the movable plate 7. The auxiliary adjustment device is located at the upper end of the movable plate 7. The guide post 9 is located on the outside of the auxiliary adjustment device. The upper end of the guide post 9 passes through and extends to the upper end of the connecting plate 8. There are four sets of guide posts 9 and auxiliary adjustment devices. The movable tube 10 is located between the auxiliary adjustment devices. The movable tube 10 has a second hole 15, and the second hole 15 has a set of groups. The upper end of the movable tube 10 passes through and extends to the upper end of the connecting plate 8. The handle 13 is located at the upper end of the movable tube 10. The limiting device 14 is located at the upper end of the connecting plate 8.

[0025] Please see Figure 3 The auxiliary adjustment device includes a spring 11 and a damping rod 12. The damping rod 12 is disposed inside the spring 11. One end of the spring 11 is disposed on the movable plate 7, and the other end of the spring 11 is disposed on the connecting plate 8.

[0026] Please see Figure 4 The limiting device 14 includes a first protrusion 141, a second protrusion 142, a second bolt 143, an internal thread 144, and an external thread 145. The first protrusion 141 is provided on one side of the movable tube 10, and the second protrusion 142 is provided on the other side of the movable tube 10. The second bolt 143 is provided in the second hole 15, and the rear end of the second bolt 143 is provided with an external thread 145. The first protrusion 141 is provided with an internal thread 144, and the second bolt 143 is threadedly connected to the internal thread 144 provided in the first protrusion 141 through the external thread 145. By providing an adjustment device in the sealing device 2, the V-shaped clamp 6 provided at the lower end of the movable plate 7 is adjusted by the movable tube 10 in the adjustment device in conjunction with the auxiliary adjustment device, and fixed by the limiting device 14 provided at the upper end of the connecting plate 8, thereby solving the problem of not being able to effectively seal seamless steel pipes 1 of different sizes.

[0027] Please see Figure 1 Each telescopic tube 32 has a pad 4 at its lower end to increase support.

[0028] Please see Figure 3 The V-shaped clamp 6 has a sealing membrane 16 on its outer side, which serves to seal the seamless steel pipes 1.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A seamless steel pipe that is easy to seal, comprising a seamless steel pipe (1), characterized in that: The seamless steel pipe (1) is provided in two sets, and the two sets of seamless steel pipe (1) are provided with sealing devices (2) on the outside. The sealing device (2) includes a sealing upper seat (21) and a sealing lower seat (22). A first bolt (5) is provided between the sealing upper seat (21) and the sealing lower seat (22), and the sealing upper seat (21) and the sealing lower seat (22) are bolted together by the first bolt (5). The sealing device (2) is provided with a support device (3). The support device (3) is provided in eight sets, and is symmetrically arranged in four groups on the sealing upper seat (21) and the sealing lower seat (22). The sealing device (2) includes a connecting plate (8) and an adjusting device.

2. The seamless steel pipe for easy sealing according to claim 1, characterized in that: The support device (3) includes a fixed tube (31), a telescopic tube (32), a pressing block (33), and a first hole (34). The fixed tube (31) is installed on the sealing device (2), the telescopic tube (32) is installed inside the fixed tube (31), the first hole (34) is provided on the outside of the fixed tube (31), and multiple sets of the first hole (34) are provided. The pressing block (33) is provided on the telescopic tube (32), and the pressing block (33) is installed inside the first hole (34).

3. A seamless steel pipe for easy sealing according to claim 2, characterized in that: The adjustment device includes a V-shaped clamp (6), a movable plate (7), a guide post (9), a movable tube (10), a handle (13), a limiting device (14), and an auxiliary adjustment device. The movable plate (7) is located inside the connecting plate (8). The lower end of the movable plate (7) is provided with a V-shaped clamp (6). The upper end of the movable plate (7) is provided with an auxiliary adjustment device. The outer side of the auxiliary adjustment device is provided with a guide post (9). The upper end of the guide post (9) extends through and to the upper end of the connecting plate (8). There are four sets of both the guide post (9) and the auxiliary adjustment device. A movable tube (10) is provided between the auxiliary adjustment devices. A second hole (15) is opened on the movable tube (10), and the second hole (15) is provided with a set of groups. The upper end of the movable tube (10) extends through and to the upper end of the connecting plate (8). A handle (13) is provided at the upper end of the movable tube (10). A limiting device (14) is provided at the upper end of the connecting plate (8).

4. A seamless steel pipe for easy sealing according to claim 3, characterized in that: The auxiliary adjustment device includes a spring (11) and a damping rod (12). The damping rod (12) is disposed inside the spring (11). One end of the spring (11) is disposed on the movable plate (7), and the other end of the spring (11) is disposed on the connecting plate (8).

5. A seamless steel pipe for easy sealing according to claim 4, characterized in that: The limiting device (14) includes a first protrusion (141), a second protrusion (142), a second bolt (143), an internal thread (144), and an external thread (145). The first protrusion (141) is provided on one side of the movable tube (10), and the second protrusion (142) is provided on the other side of the movable tube (10). The second bolt (143) is provided in the second hole (15). The rear end of the second bolt (143) is provided with an external thread (145). The first protrusion (141) is provided with an internal thread (144), and the second bolt (143) is threadedly connected to the internal thread (144) provided in the first protrusion (141) through the external thread (145).

6. A seamless steel pipe for easy sealing according to claim 5, characterized in that: Each telescopic tube (32) is provided with a pad (4) at its lower end.

7. A seamless steel pipe for easy sealing according to claim 6, characterized in that: A sealing membrane (16) is provided on the outside of the V-shaped clamp (6).

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