Field pipe straightening device
By designing a field pipe straightening device, using L-shaped brackets and spiral jacks to straighten pipe deformation, the problem of installation difficulties caused by pipe deformation during transportation was solved, achieving convenient field straightening and welding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-31
AI Technical Summary
The pipe ends of large pipes were slightly deformed during long-distance transportation, which made installation and welding difficult after they arrived on site. They could not be corrected under field conditions, which affected the construction progress.
Design a field pipe straightening device, including an L-shaped bracket, a rotating seat, a sleeve frame and a screw jack. The pipe is fixed by an installation ring, the pipe opening is pushed to the appropriate position by the screw jack and fixed by spot welding.
It enables convenient and labor-saving correction of pipe end deformation under field conditions, ensuring smooth pipe installation and welding, and improving construction efficiency.
Smart Images

Figure CN224058414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water conservancy and hydropower engineering technology, specifically to a field pipe straightening device. Background Technology
[0002] During long-distance transportation, large pipes may experience slight deformation at the pipe ends, making installation and welding difficult after the pipes arrive on site. Limited field conditions prevent the correction of deformed pipe ends, thus affecting the construction progress. Utility Model Content
[0003] The purpose of this utility model is to provide a field pipe straightening device. By setting up an L-shaped bracket, a rotating seat, a sleeve frame, a spiral jack, and an installation ring, it solves the problem that large pipes will inevitably be slightly deformed at the pipe opening during long-distance transportation, which will make it difficult to install and weld the pipes after they arrive on site. Furthermore, the limited field conditions make it impossible to straighten the deformed parts of the pipe opening, thus affecting the construction progress.
[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: an outdoor pipe straightening device, including an L-shaped bracket, a connecting piece fixedly connected to one end of the L-shaped bracket, an insertion hole opened in the middle of the connecting piece, a pin rotatably connected inside the insertion hole, a rotating seat rotatably connected to the connecting piece through the pin, a sleeve frame fixedly connected to the bottom end of the rotating seat, and a spiral jack inserted inside the sleeve frame.
[0005] Preferably, a sleeve is welded to the bottom end of the L-shaped bracket, and an installation ring is inserted into the sleeve.
[0006] Preferably, both ends of the mounting ring are fixedly connected to tightening plates, and the surface of the tightening plates is provided with insertion holes, into which tightening bolts are inserted.
[0007] Preferably, a reinforcing rib A is welded between the tightening plate and the mounting ring, and a reinforcing rib B is welded between the L-shaped bracket and the sleeve.
[0008] Preferably, a hole is provided on one side of the frame, and an A bolt for fixing the spiral jack is inserted into the hole.
[0009] Preferably, the surface of the rotating seat is provided with a positioning hole, and a B bolt that is fixed to the connecting piece is inserted into the positioning hole.
[0010] This utility model provides a field pipe straightening device, which has the following beneficial effects:
[0011] In use, the installation ring is fitted onto the interface of one of the pipes, and the L-shaped bracket is moved to the position of the other pipe that needs to be corrected. Then, the tightening bolt is tightened to fix the position of the installation ring and the L-shaped bracket. Then, the screw jack is installed through bolt A, and the angle of the rotating seat is adjusted according to the position to be corrected to control the pushing angle of the screw jack. Bolt B is then inserted to fix it. Then, the screw jack is manually turned down until the bottom of the jack contacts the pipe opening to be corrected. The jack plate rod is slowly and evenly turned, and the pipe opening is carefully observed for correction. Once the correction is completed, it is stopped immediately. The adjusted pipe opening is then spot welded in sections to prevent the pipe opening from springing back. This equipment makes it convenient and labor-saving for personnel to perform pipe correction and welding in the field. Attached Figure Description
[0012] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a structural disassembly diagram of the L-shaped bracket of this utility model;
[0015] Figure 3 This is a structural breakdown diagram of the spiral jack of this utility model;
[0016] Figure 4 This is a structural disassembly diagram of the mounting ring of this utility model.
[0017] The image shows:
[0018] 1. L-shaped bracket; 2. Connecting piece; 3. Pin; 4. Rotating seat; 5. Sleeve frame; 6. Screw jack; 7. Sleeve base; 8. Mounting ring; 9. Tightening piece; 10. Tightening bolt; 11. A reinforcing rib; 12. B reinforcing rib; 13. A bolt; 14. B bolt. Detailed Implementation
[0019] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the 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 scope of protection of the present utility model.
[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment proposes an outdoor pipe straightening device, including an L-shaped bracket 1. One end of the L-shaped bracket 1 is fixedly connected to a connecting piece 2. An insertion hole is opened in the middle of the connecting piece 2. A pin 3 is rotatably connected inside the insertion hole. The connecting piece 2 is rotatably connected to a rotating seat 4 through the pin 3. A sleeve 5 is fixedly connected to the bottom end of the rotating seat 4. A spiral jack 6 is inserted into the sleeve 5.
[0022] The L-shaped bracket 1 is used to install and support the spiral jack 6, so that after the operator cranks the jack, it can be pushed downwards to the deformed part of the pipe, so that the joint of the two pipes is kept in place, which makes it easier for the operator to weld them.
[0023] The bottom of the L-shaped bracket 1 is welded with a sleeve 7, and the sleeve 7 is inserted with a mounting ring 8. Both ends of the mounting ring 8 are fixedly connected with tightening plates 9. The surface of the tightening plate 9 is provided with a hole, and a tightening bolt 10 is inserted into the hole.
[0024] By fitting the mounting ring 8 onto one of the pipes and controlling the position of the jack through the sleeve 7, the tightening bolt 10 is tightened after reaching the appropriate position to fix the position of the L-shaped bracket 1. After subsequent operations are completed, the mounting ring 8 can be loosened to readjust the position of the L-shaped bracket 1.
[0025] A reinforcing rib 11 is welded between the tightening plate 9 and the mounting ring 8, and a reinforcing rib 12 is welded between the L-shaped bracket 1 and the sleeve 7.
[0026] By incorporating reinforcing ribs A (11) and B (12), the overall strength of the equipment is enhanced, preventing deformation during use and extending its service life.
[0027] A hole is provided on one side of the frame 5, and an A bolt 13 for fixing the spiral jack 6 is inserted into the hole.
[0028] The top of the spiral jack 6 has a round hole for connecting with bolt A 13, which facilitates the fixing of the jack.
[0029] The surface of the rotating seat 4 is provided with a positioning hole, and a B bolt 14 that is fixed to the connecting piece 2 is inserted into the positioning hole.
[0030] The angle of the jack can be controlled by rotating the rotating seat 4, thereby making the pushing and correcting position more accurate.
[0031] Specifically, when using this field pipe straightening device: First, place the mounting ring 8 onto the interface of one pipe and move the L-shaped bracket 1 to the position of the other pipe requiring straightening. Then, tighten the tightening bolt 10 to fix the position of the mounting ring 8 and the L-shaped bracket 1. Next, install the spiral jack 6 using bolt A 13, and adjust the angle of the rotating seat 4 according to the position to be straightened to control the pushing angle of the spiral jack 6. Insert bolt B 14 to fix it. Then, manually crank the spiral jack 6 downwards until the bottom of the jack contacts the pipe opening to be straightened. Slowly and evenly crank the jack plate rod, carefully observing the pipe opening straightening situation. Stop immediately after straightening is complete, and spot weld the adjusted pipe opening in sections to prevent it from springing back. This equipment facilitates pipe straightening and welding in the field, saving labor and time.
[0032] 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 field pipe straightening device comprising an L-shaped bracket (1), characterized in that: One end of the L-shaped support (1) is fixedly connected with a connecting sheet (2), a bushing is formed in the middle of the connecting sheet (2), a pin shaft (3) is rotatably connected in the bushing, the connecting sheet (2) is rotatably connected with a rotating seat (4) through the pin shaft (3), the bottom end of the rotating seat (4) is fixedly connected with a sleeve frame (5), and the sleeve frame (5) is inserted with a screw jack (6).
2. A field pipe straightening apparatus as defined in claim 1, wherein: The bottom end of the L-shaped support (1) is welded with a sleeve seat (7), and the sleeve seat (7) is inserted with a mounting ring (8).
3. A field pipe straightening apparatus as defined in claim 2, wherein: Both ends of the mounting ring (8) are fixedly connected with tightening sheets (9), and the surface of the tightening sheets (9) is provided with bushings, and the bushings are inserted with tightening bolts (10).
4. A field pipe straightening apparatus as defined in claim 3, wherein: A reinforcing rib (11) is welded between the tightening sheets (9) and the mounting ring (8), and a B reinforcing rib (12) is welded between the L-shaped support (1) and the sleeve seat (7).
5. The field pipe straightening apparatus of claim 1, wherein: A hole is formed in one side of the sleeve frame (5), and an A bolt (13) for fixing the screw jack (6) is inserted in the hole.
6. The field pipe straightening apparatus of claim 1, wherein: The surface of the rotating seat (4) is provided with a positioning hole, and the positioning hole is inserted with a B bolt (14) fixed with the connecting sheet (2).