Quickly-connected seamless steel pipe

Abstract

The utility model relates to the technical field of seamless steel pipes, and discloses a fast-connection seamless steel pipe which comprises a first steel pipe, a connecting plate is fixedly installed at one end of the first steel pipe, a sleeve is fixedly installed at the end, away from the first steel pipe, of the connecting plate, an installing block is fixedly installed at the upper end of the sleeve, and a locking frame is installed in the installing block. A locking block is mounted at the other end of the locking frame, a second steel pipe is fixedly mounted at the lower end of the locking block, a connecting plate is fixedly mounted at the left end of the second steel pipe, and a threaded part is fixedly mounted at the left end of the connecting plate. And by arranging the locking block, the locking frame can be locked, all the structures are matched with one another, time is saved, and higher efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless steel pipes, in particular to a quick-connect seamless steel pipe. Background Art

[0002] Seamless steel pipe is made of a whole round steel through holes. There is no weld on the surface of the steel pipe, which is called seamless steel pipe. According to the production method, seamless steel pipe can be divided into hot-rolled seamless steel pipe, cold-rolled seamless steel pipe, cold-drawn seamless steel pipe, extruded seamless steel pipe, jacking pipe, etc. According to the cross-sectional shape, seamless steel pipe is divided into round and special-shaped. Special-shaped pipes have square, oval, triangle, hexagon, melon seed, star, winged pipe and many other complex shapes. The maximum diameter is 900mm and the minimum diameter is 4mm. According to different uses, there are thick-walled seamless steel pipes and thin-walled seamless steel pipes. Seamless steel pipes are mainly used as petroleum geological drilling pipes, cracking pipes for petrochemicals, boiler pipes, bearing pipes, and high-precision structural steel pipes for automobiles, tractors, and aviation.

[0003] After searching, the utility model patent with announcement number CN218625845U discloses a seamless steel pipe that is easy to connect, including a first seamless steel pipe, a second seamless steel pipe and a connecting assembly, the first seamless steel pipe and the second seamless steel pipe are equipped with a connecting assembly on their exteriors; the connecting assembly includes a second fixing ring, a first fixing ring and a ring sleeve, the second fixing ring is fixedly installed on the right side of the exterior of the second seamless steel pipe, the first fixing ring is fixedly installed on the left side of the exterior of the first seamless steel pipe, the left side of the first fixing ring is fixedly installed with two positioning plates, the right side of the second fixing ring is provided with two positioning grooves, the two positioning plates are respectively clamped in the two positioning grooves, the interior of the second fixing ring is provided with mounting grooves located at the top and bottom of the positioning groove, a spring is fixedly installed on the inner wall of the mounting groove, and a clamping block is fixedly installed on the side of the spring close to the positioning plate. The seamless steel pipe that is easy to connect achieves the purpose of conveniently connecting and fixing seamless steel pipes.

[0004] The above-mentioned prior art does not connect the seamless steel pipes tightly enough and may easily fall off after being subjected to external force. Therefore, the utility model provides a quick-connect seamless steel pipe. Utility Model Content

[0005] The utility model aims to provide a quick-connected seamless steel pipe, which solves the problems raised in the background technology.

[0006] An embodiment of the present application provides a quick-connect seamless steel pipe, including a first steel pipe, a connecting plate fixedly installed at one end of the first steel pipe, a sleeve fixedly installed at the end of the connecting plate away from the first steel pipe, a mounting block fixedly installed at the upper end of the sleeve, a locking frame installed inside the mounting block, a locking block installed at the other end of the locking frame, a second steel pipe fixedly installed at the lower end of the locking block, a connecting plate fixedly installed at the left end of the second steel pipe, and a threaded portion fixedly installed at the left end of the connecting plate.

[0007] In this technical solution, when the first steel pipe and the second steel pipe need to be connected, the threaded part and the sleeve are connected first, and the threaded part is rotated. The threaded part will rotate in the threaded groove on the inner wall of the sleeve, and then the threaded rod and the threaded hole are threadedly installed together, and the fixed ball rotates in the annular groove to lock the mounting plate and the vertical plate, and then the sliding plate and the vertical rod are installed together. When the sliding plate is under the locking head, the blocking plate will rotate under the action of the torsion spring to block the sliding plate. When disassembly is required, when the sliding plate slides upward, force is applied to the blocking plate, which will cause the blocking plate to rotate around the rotation axis to cancel its blocking of the sliding plate, and then the two steel pipes are separated by rotating the threaded part in the opposite direction.

[0008] Optionally, an inner cavity is opened inside the mounting block, a spring is fixedly mounted on the side wall of the inner cavity, a fixing plate is fixedly mounted on one end of the spring away from the side wall of the inner cavity, the fixing plate is slidably mounted on the side wall of the inner cavity, and a locking frame is fixedly mounted on one end of the fixing plate away from the spring.

[0009] By adopting the above technical solution, after the locking frame is pushed to the right, the spring and the fixing plate exert a force to the left, so that the locking frame is reset to the leftmost end.

[0010] Optionally, a vertical plate is fixedly mounted on the inner wall of the sleeve, a connecting rod is fixedly mounted on the upper end of the vertical plate, a fixing ball is fixedly mounted on the end of the connecting rod away from the vertical plate, and a threaded hole is formed on the vertical plate.

[0011] By adopting the above technical solution, it is convenient to connect the first steel pipe and the second steel pipe.

[0012] Optionally, a mounting plate is fixedly mounted on one end of the threaded portion away from the connecting plate, a threaded rod is fixedly mounted on the mounting plate, an annular groove is formed on the mounting plate, and the annular groove includes a circular groove and an arc groove.

[0013] By adopting the above technical solution, the threaded part and the sleeve can be easily connected to each other.

[0014] Optionally, the size of the circular groove is consistent with the size of the fixing ball, and the size of the arc groove is consistent with the size of the connecting rod.

[0015] By adopting the above technical solution, it is convenient to install the fixed ball into the circular groove, so that the installation plate and the vertical plate are connected to each other.

[0016] Optionally, the size of the threaded rod is consistent with the size of the threaded hole and the two can be threadedly connected to each other.

[0017] By adopting the above technical solution, the connection between the mounting plate and the vertical plate is made more secure.

[0018] Optionally, a mounting groove is provided inside the locking block, a vertical rod is fixedly installed in the mounting groove, a sliding plate is slidably installed on the vertical rod, a through hole is provided on the sliding plate, the size of the vertical rod is smaller than the size of the through hole, and a locking head is fixedly installed on the upper end of the vertical rod.

[0019] By adopting the above technical solution, the sliding plate is connected to the locking frame, and the movement of the sliding plate on the vertical rod can drive the locking frame to move, so that the locking head can lock and unlock the sliding plate.

[0020] Optionally, the locking head comprises a mounting shell, a blocking plate is rotatably mounted inside the mounting shell, and a torsion spring is fixedly mounted on the rotating shaft of the blocking plate and the mounting shell.

[0021] By adopting the above technical solution, when the sliding plate is below the locking head, the blocking plate will rotate under the action of the torsion spring to block the sliding plate. When the sliding plate slides upward, force is applied to the blocking plate, causing the blocking plate to rotate around the rotation axis, thereby canceling its blocking of the sliding plate.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The technical solution of the present application provides a mounting plate and a vertical plate to make the connection between the first steel pipe and the second steel pipe more secure, and the locking frame can be locked by providing a locking block. The various structures cooperate with each other, saving time and being more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0025] Figure 1 This is a front view of a quick-connect seamless steel pipe of the utility model;

[0026] Figure 2 This is a front view of the threaded portion of a quick-connect seamless steel pipe of the utility model;

[0027] Figure 3 This is a schematic diagram of the internal structure of a mounting block in a seamless steel pipe for quick connection according to the utility model;

[0028] Figure 4 This is a front view of a locking head on a locking block in a seamless steel pipe for quick connection of the utility model when it is tightened;

[0029] Figure 5 It is a front view of a locking head on a locking block in a quick-connect seamless steel pipe of the utility model when it is unfolded.

[0030] In the figure: 1. first steel pipe; 2. connecting plate; 3. sleeve; 4. mounting block; 5. locking frame; 6. locking block; 7. threaded portion; 8. second steel pipe; 9. spring; 10. fixing plate; 11. mounting groove; 12. vertical rod; 13. sliding plate; 14. locking head; 15. blocking plate; 16. mounting shell. DETAILED DESCRIPTION

[0031] See also Figure 1-5 The utility model provides a technical solution: it includes a first steel pipe 1, a connecting plate 2 is fixedly installed at one end of the first steel pipe 1, a sleeve 3 is fixedly installed at the end of the connecting plate 2 away from the first steel pipe 1, a mounting block 4 is fixedly installed on the upper end of the sleeve 3, a locking frame 5 is installed inside the mounting block 4, a locking block 6 is installed at the other end of the locking frame 5, a second steel pipe 8 is fixedly installed at the lower end of the locking block 6, the connecting plate 2 is fixedly installed on the left end of the second steel pipe 8, and a threaded portion 7 is fixedly installed on the left end of the connecting plate 2.

[0032] In the technical solution of the utility model, if Figure 3 As shown, an inner cavity is opened inside the mounting block 4, a spring 9 is fixedly mounted on the side wall of the inner cavity, a fixing plate 10 is fixedly mounted on the end of the spring 9 away from the side wall of the inner cavity, the fixing plate 10 is slidably mounted on the side wall of the inner cavity, a locking frame 5 is fixedly mounted on the end of the fixing plate 10 away from the spring 9, and after the locking frame 5 is pushed to the right, the spring 9 and the fixing plate 10 give it a leftward force, so that it returns to the leftmost end.

[0033] In the technical solution of the utility model, if Figure 1 As shown, a vertical plate is fixedly installed on the inner wall of the sleeve 3, a connecting rod is fixedly installed on the upper end of the vertical plate, a fixing ball is fixedly installed on the end of the connecting rod away from the vertical plate, and a threaded hole is opened on the vertical plate to facilitate the connection between the first steel pipe 1 and the second steel pipe 8.

[0034] In the technical solution of the utility model, if Figure 2 As shown, a mounting plate is fixedly mounted on one end of the threaded portion 7 away from the connecting plate 2, a threaded rod is fixedly mounted on the mounting plate, an annular groove is opened on the mounting plate, and the annular groove includes a circular groove and an arc groove, so as to facilitate the connection between the threaded portion 7 and the sleeve 3.

[0035] In the technical solution of the utility model, if Figure 1 and Figure 2 As shown, the size of the circular groove is consistent with that of the fixing ball, and the size of the arc groove is consistent with that of the connecting rod, which facilitates the installation of the fixing ball into the circular groove, so that the mounting plate and the vertical plate are connected to each other.

[0036] In the technical solution of the utility model, if Figure 1 and Figure 2 As shown, the size of the threaded rod is consistent with the size of the threaded hole and the two can be threadedly connected to each other, so that the connection between the mounting plate and the vertical plate is more secure.

[0037] In the technical solution of the utility model, if Figure 5 As shown, a mounting groove 11 is provided inside the locking block 6, a vertical rod 12 is fixedly installed in the mounting groove 11, a sliding plate 13 is slidably installed on the vertical rod 12, a through hole is provided on the sliding plate 13, the size of the vertical rod 12 is smaller than the size of the through hole, a locking head 14 is fixedly installed on the upper end of the vertical rod 12, the sliding plate 13 is connected to the locking frame 5, and the locking frame 5 can be driven to move by the movement of the sliding plate 13 on the vertical rod 12, so that the locking head 14 can lock and unlock the sliding plate 13.

[0038] In the technical solution of the utility model, if Figure 4 As shown, the locking head 14 includes a mounting shell 16, and a blocking plate 15 is rotatably mounted inside the mounting shell 16. A torsion spring is fixedly mounted on the rotating shaft of the blocking plate 15 and the mounting shell 16. When the sliding plate 13 is below the locking head 14, the blocking plate 15 will rotate under the action of the torsion spring to block the sliding plate 13. When the sliding plate 13 slides upward, force is applied to the blocking plate 15, which will cause the blocking plate 15 to rotate around the rotating shaft, thereby canceling its blocking of the sliding plate 13.

[0039] In this technical solution, when the first steel pipe 1 and the second steel pipe 8 need to be connected, the threaded portion 7 and the sleeve 3 are first connected, and the threaded portion 7 is rotated. The threaded portion 7 will rotate in the threaded groove on the inner wall of the sleeve 3, and then the threaded rod and the threaded hole are threadedly installed together, and the fixed ball rotates in the annular groove to lock the mounting plate and the vertical plate. Then the sliding plate 13 and the vertical rod 12 are installed together. When the sliding plate 13 is below the locking head 14, the blocking plate 15 will rotate under the action of the torsion spring to block the sliding plate 13. When disassembly is required, when the sliding plate 13 slides upward, force is applied to the blocking plate 15, which will cause the blocking plate 15 to rotate around the rotation axis, canceling its blocking of the sliding plate 13, and then the two steel pipes are separated by rotating the threaded portion 7 in the opposite direction.

Claims

1. A quick-connect seamless steel pipe, comprising a first steel pipe (1), characterized in that: A connecting plate (2) is fixedly mounted on one end of the first steel pipe (1); a sleeve (3) is fixedly mounted on the end of the connecting plate (2) away from the first steel pipe (1); a mounting block (4) is fixedly mounted on the upper end of the sleeve (3); a locking frame (5) is mounted inside the mounting block (4); a locking block (6) is mounted on the other end of the locking frame (5); a second steel pipe (8) is fixedly mounted on the lower end of the locking block (6); a connecting plate (2) is fixedly mounted on the left end of the second steel pipe (8); and a threaded portion (7) is fixedly mounted on the left end of the connecting plate (2).

2. A quick-connect seamless steel pipe according to claim 1, characterized in that: An inner cavity is formed inside the mounting block (4), a spring (9) is fixedly mounted on a side wall of the inner cavity, a fixing plate (10) is fixedly mounted on one end of the spring (9) away from the side wall of the inner cavity, the fixing plate (10) is slidably mounted on the side wall of the inner cavity, and a locking frame (5) is fixedly mounted on one end of the fixing plate (10) away from the spring (9).

3. The quick-connect seamless steel pipe according to claim 1, characterized in that: A vertical plate is fixedly mounted on the inner wall of the sleeve (3), a connecting rod is fixedly mounted on the upper end of the vertical plate, a fixing ball is fixedly mounted on the end of the connecting rod away from the vertical plate, and a threaded hole is provided on the vertical plate.

4. The quick-connect seamless steel pipe according to claim 1, characterized in that: A mounting plate is fixedly mounted on one end of the threaded portion (7) away from the connecting plate (2), a threaded rod is fixedly mounted on the mounting plate, and an annular groove is formed on the mounting plate, the annular groove comprising a circular groove and an arc-shaped groove.

5. A quick-connect seamless steel pipe according to claim 4, characterized in that: The size of the circular groove is consistent with that of the fixing ball, and the size of the arc groove is consistent with that of the connecting rod.

6. A quick-connect seamless steel pipe according to claim 4, characterized in that: The size of the threaded rod is consistent with that of the threaded hole and the two can be threadedly connected to each other.

7. The quick-connect seamless steel pipe according to claim 1, characterized in that: The locking block (6) has an installation groove (11) formed therein, a vertical rod (12) is fixedly mounted in the installation groove (11), a sliding plate (13) is slidably mounted on the vertical rod (12), a through hole is formed on the sliding plate (13), the size of the vertical rod (12) is smaller than the size of the through hole, and a locking head (14) is fixedly mounted on the upper end of the vertical rod (12).

8. A quick-connect seamless steel pipe according to claim 7, characterized in that: The locking head (14) comprises a mounting shell (16), a blocking plate (15) is rotatably mounted inside the mounting shell (16), and a torsion spring is fixedly mounted on the rotation axis of the blocking plate (15) and the mounting shell (16).

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