Quick butt joint device for spiral steel pipe installation

By designing a quick-connection device that includes a base, a placement seat, a movable plate, a vertical plate, a rotating shaft, and a transmission wheel, the problem of low welding efficiency in traditional spiral steel pipes is solved, and convenient, precise connection and stable welding of steel pipes are achieved.

CN224464056UActive Publication Date: 2026-07-07TIANJIN TONGXINTAI STEEL PIPE MFG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN TONGXINTAI STEEL PIPE MFG
Filing Date
2025-07-11
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Traditional spiral steel pipe welding requires manual winding, resulting in low welding efficiency and inconvenience.

Method used

A quick-connection device was designed, comprising a base, a placement seat, a movable plate, a vertical plate, a rotating shaft, and a transmission wheel. It achieves precise connection and synchronous rotation of steel pipes through ball bearing guidance and motor drive, simplifying the welding operation.

Benefits of technology

It enables convenient, precise connection and stable welding of steel pipes, improving welding efficiency and ease of operation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224464056U_ABST
    Figure CN224464056U_ABST
Patent Text Reader

Abstract

This utility model discloses a quick-connection device for installing spiral steel pipes, which includes a base. Two placement seats of the same height are symmetrically fixedly installed on the top of the base. A spiral steel pipe body of the same diameter is placed on the top of each placement seat. An adjustable movable plate is provided between the upper and lower ends of the two spiral steel pipe bodies. Two vertical plates are symmetrically fixedly installed on one side of the bottom of the movable plate. A rotating shaft is rotatably installed between the lower parts of the two vertical plates. Transmission wheels for pressing and fixing the two spiral steel pipe bodies are fixedly installed on both sides of the rotating shaft. A motor connected to one end of the rotating shaft is installed on one side of one of the vertical plates. This quick-connection device for installing spiral steel pipes has an effective fixing and rotating structure, and can press and fix two steel pipes after docking and simultaneously drive the two steel pipes to rotate, thereby enabling precise and convenient welding operations on the two steel pipes.
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Description

Technical Field

[0001] This utility model belongs to the field of steel pipe docking technology, specifically a quick docking device for installing spiral steel pipes. Background Technology

[0002] Spiral welded steel pipe is a type of steel pipe with a spiral welded joint, typically made from rolled steel strips or plates. Its production process involves welding steel strips together in a spiral manner, thus forming a spiral welded line along the pipe axis. This structure gives spiral welded steel pipe excellent performance in terms of pressure resistance and bending resistance. During use, to increase the length of the pipe, two steel pipes are often welded together. The traditional welding method involves fixing the two pipes together before welding, which requires manual operation of winding the pipes in a circular motion. Finally, the two pipes still need to be rotated to weld the bottom joint. Therefore, improvements are needed to address these issues. Utility Model Content

[0003] To achieve the above objectives, this utility model provides the following technical solution: a quick-connection device for installing spiral steel pipes, comprising a base, on which two placement seats of the same height are symmetrically fixedly installed. A spiral steel pipe body of the same diameter is placed on the top of each placement seat, with the opposite ends of the two spiral steel pipe bodies abutting and connecting. An adjustable movable plate is provided above the opposite ends of the two spiral steel pipe bodies. Two vertical plates are symmetrically fixedly installed on one side of the bottom of the movable plate, each vertical plate being directly above the axis of the two spiral steel pipe bodies. A rotating shaft is rotatably installed between the lower parts of the two vertical plates. Transmission wheels for pressing and fixing the two spiral steel pipe bodies are fixedly installed on both sides of the rotating shaft. A motor connected to one end of the rotating shaft is installed on one side of one of the vertical plates.

[0004] Preferably, the top of each of the two placement seats is provided with a large-opening V-shaped groove, the two large-opening V-shaped grooves are symmetrically arranged, and the two large-opening V-shaped grooves are respectively located directly below the two transmission wheels. The two sides inside the large-opening V-shaped grooves are equally spaced with ball bearings that can be rolled and adjusted in multiple directions and contact the spiral steel pipe body.

[0005] Preferably, an n-shaped plate frame is fixedly installed on the top of the base, and two sliding rods are fixedly installed between the inside of the n-shaped plate frame and the top of the base. Two sleeves are symmetrically fixedly installed on one side of the movable plate, and the two sleeves are respectively movably sleeved on the surface of the two sliding rods. An electric telescopic rod is installed on the top of the base between the two sliding rods, and the telescopic end of the electric telescopic rod is fixedly connected to the middle of the other side of the bottom of the movable plate.

[0006] Compared with the prior art, the beneficial effects of this utility model are as follows: This quick docking device for spiral steel pipe installation has an effective fixing and rotation structure, and can clamp and fix two steel pipes after docking and synchronously drive the two steel pipes to rotate, thereby enabling precise and convenient welding operations on the two steel pipes. At the same time, the quick docking device for spiral steel pipe installation has a simple structural design, is convenient to use and operate, and has stable and reliable docking, fixing and rotation adjustment. Its performance can meet the needs of steel pipe processing.

[0007] Two spiral steel pipe bodies are placed inside two large-opening V-shaped grooves and brought into contact with ball bearings. The rolling of the ball bearings moves the spiral steel pipe bodies horizontally, allowing for convenient and precise docking. Next, the downward movement of the movable plate moves two vertical plates, which in turn drive two transmission wheels downward via a rotating shaft. These wheels press down on the two spiral steel pipe bodies, preventing them from moving horizontally. Then, starting the motor rotates the shaft, which in turn drives the two transmission wheels. The rotation of these wheels, along with the ball bearings, causes the two spiral steel pipe bodies to rotate synchronously, ensuring a consistent and effective connection at the joint. Finally, manual welding of the joint between the two spiral steel pipe bodies can be easily and effectively performed. Attached Figure Description

[0008] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0009] In the attached diagram:

[0010] Figure 1 This is a schematic diagram of the structure of the quick-connection device for installing spiral steel pipes according to this utility model;

[0011] Figure 2 This is a side sectional view of the quick-connection device for spiral steel pipe installation according to this utility model.

[0012] In the diagram: 1. Base; 2. Placement seat; 3. Spiral steel pipe body; 4. Movable plate; 5. Vertical plate; 6. Rotating shaft; 7. Transmission wheel; 8. Motor; 9. Large-opening V-shaped groove; 10. Ball bearing; 11. N-shaped plate frame; 12. Slide rod; 13. Sleeve; 14. Electric telescopic rod. Detailed Implementation

[0013] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0014] Depend on Figure 1 and Figure 2 The present invention includes a base 1, on which two placement seats 2 of the same height are symmetrically fixedly installed. A spiral steel pipe body 3 of the same diameter is placed on the top of each placement seat 2. The opposite ends of the two spiral steel pipe bodies 3 abut against each other. An adjustable movable plate 4 is provided between the upper parts of the opposite ends of the two spiral steel pipe bodies 3. Two vertical plates 5 are symmetrically fixedly installed on one side of the bottom of the movable plate 4. The two vertical plates 5 are respectively located directly above the axis of the two spiral steel pipe bodies 3. A rotating shaft 6 is rotatably installed between the lower parts of the two vertical plates 5. Transmission wheels 7 are fixedly installed on both sides of the rotating shaft 6 to press and fix the two spiral steel pipe bodies 3. A motor 8 connected to one end of the rotating shaft 6 is installed on one side of one of the vertical plates 5, thereby effectively pressing and fixing the two abutting spiral steel pipe bodies 3 to maintain the stability of the abutment, and enabling synchronous rotation adjustment of the two abutting spiral steel pipe bodies 3.

[0015] Both placement seats 2 have large-opening V-shaped grooves 9 on their tops. The two large-opening V-shaped grooves 9 are symmetrically arranged and located directly below the two transmission wheels 7. Both sides of the large-opening V-shaped grooves 9 are equally spaced with ball bearings 10 that can be rolled and adjusted in multiple directions and contact the spiral steel pipe body 3. This allows for effective horizontal movement adjustment and precise docking of the spiral steel pipe body 3, as well as rotational adjustment of the pressed and fixed spiral steel pipe body 3.

[0016] Specifically, the two spiral steel pipe bodies 3 are placed inside the two large-opening V-shaped grooves 9 and in contact with the ball bearings 10. Then, the spiral steel pipe bodies 3 are moved horizontally by the rolling of the ball bearings 10, so that the two spiral steel pipe bodies 3 can move and dock easily and accurately. Then, the downward movement of the movable plate 4 drives the two vertical plates 5. The downward movement of the two vertical plates 5 drives the two transmission wheels 7 to move downward through the rotating shaft 6. The downward movement of the two transmission wheels 7 will press down and fix the two spiral steel pipe bodies 3 respectively, so that the two spiral steel pipe bodies 3 cannot move horizontally.

[0017] Next, the rotating shaft 6 is rotated by starting the motor 8. The rotation of the rotating shaft 6 will drive the two transmission wheels 7 to rotate. The rotation of the two transmission wheels 7 will drive the two spiral steel pipe bodies 3. At the same time, the ball bearings 10 will make the two spiral steel pipe bodies 3 rotate synchronously, so that the joint of the two spiral steel pipe bodies 3 always maintains effective connection. Then, the joint of the two spiral steel pipe bodies 3 can be easily and effectively welded manually.

[0018] An n-shaped plate frame 11 is fixedly installed on the top of the base 1. Two sliding rods 12 are fixedly installed between the inside of the n-shaped plate frame 11 and the top of the base 1. Two sleeves 13 are symmetrically fixedly installed on one side of the movable plate 4. The two sleeves 13 are movably sleeved on the surfaces of the two sliding rods 12 respectively. An electric telescopic rod 14 is installed on the top of the base 1 between the two sliding rods 12. The telescopic end of the electric telescopic rod 14 is fixedly connected to the middle of the other side of the bottom of the movable plate 4, so as to effectively press and fix the spiral steel pipe body 3 of different diameters.

[0019] Specifically, the movable plate 4 is moved up and down on the surface of the two sliding rods 12 by the extension and retraction adjustment of the electric telescopic rod 14. The movement of the movable plate 4 will drive the two vertical plates 5, the rotating shaft 6 and the two transmission wheels 7 to move synchronously, so that the two transmission wheels 7 can effectively press and fix the spiral steel pipe body 3 of different diameters.

[0020] This quick-connection device for spiral steel pipe installation has an effective fixing and rotation structure. It can clamp and fix two steel pipes after docking and simultaneously drive the two steel pipes to rotate, thereby enabling precise and convenient welding operations on the two steel pipes. At the same time, the quick-connection device for spiral steel pipe installation has a simple structural design, is easy to use and operate, and has stable and reliable docking, fixing and rotation adjustment. Its performance can meet the needs of steel pipe processing.

Claims

1. A quick-connection device for installing spiral steel pipes, comprising a base (1), characterized in that: Two placement seats (2) of the same height are symmetrically fixedly installed on the top of the base (1). The top of the two placement seats (2) is equipped with a spiral steel pipe body (3) of the same diameter. The opposite ends of the two spiral steel pipe bodies (3) abut against each other. An adjustable movable plate (4) is provided between the upper and lower ends of the two spiral steel pipe bodies (3). Two vertical plates (5) are symmetrically fixedly installed on one side of the bottom of the movable plate (4). The two vertical plates (5) are located directly above the axis of the two spiral steel pipe bodies (3). A rotating shaft (6) is rotatably installed between the lower parts of the two vertical plates (5). Transmission wheels (7) for pressing and fixing the two spiral steel pipe bodies (3) are fixedly installed on both sides of the rotating shaft (6). A motor (8) connected to one end of the rotating shaft (6) is installed on one side of one of the vertical plates (5). This can effectively press and fix the two connected spiral steel pipe bodies (3) to maintain the stability of the connection, and can synchronously rotate and adjust the two connected spiral steel pipe bodies (3).

2. The quick-connection device for installing spiral steel pipes according to claim 1, characterized in that: Both of the two placement seats (2) have a large-opening V-shaped groove (9) on their tops. The two large-opening V-shaped grooves (9) are symmetrically arranged and located directly below the two transmission wheels (7). The two sides inside the large-opening V-shaped grooves (9) are equally spaced with ball bearings (10) that can be rolled and adjusted in multiple directions and contact the spiral steel pipe body (3). This allows for effective horizontal movement adjustment and precise docking of the spiral steel pipe body (3), as well as rotational adjustment of the pressed and fixed spiral steel pipe body (3).

3. The quick-connection device for installing spiral steel pipes according to claim 1, characterized in that: An n-shaped plate frame (11) is fixedly installed on the top of the base (1). Two sliding rods (12) are fixedly installed between the inside of the n-shaped plate frame (11) and the top of the base (1). Two sleeves (13) are symmetrically fixedly installed on one side of the movable plate (4). The two sleeves (13) are respectively movably sleeved on the surface of the two sliding rods (12).

4. The quick-connection device for installing spiral steel pipes according to claim 3, characterized in that: The base (1) is equipped with an electric telescopic rod (14) located between two sliding rods (12) at the top. The telescopic end of the electric telescopic rod (14) is fixedly connected to the middle of the other side of the bottom of the movable plate (4), so as to effectively press and fix the spiral steel pipe body (3) of different diameters.