A pipe bending apparatus

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By designing an adjustable fixed tube and guide wheel assembly, the problem of mismatched steel pipe diameters in existing bending equipment has been solved, realizing a pipe processing bending equipment that enables precise bending and convenient operation.

CN224586689UActive Publication Date: 2026-08-04LIAONING NORTH STEEL PIPE MANUFACTURING CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: LIAONING NORTH STEEL PIPE MANUFACTURING CO LTD
Filing Date: 2025-08-29
Publication Date: 2026-08-04

AI Technical Summary

Technical Problem

When existing manual bending machines bend steel pipes of different diameters, the forming groove does not match the steel pipe, resulting in an excessively large groove diameter. This causes the steel pipe to shift within the groove, and the actual bending radius is greater than required.

Method used

A bending device for pipe processing was designed, including components such as a base, side plates, fixed pipe, semi-drive disc, guide wheels, and limit plates. The adjustable fixed pipe and guide wheels, in conjunction with the diameter of the steel pipe, achieve precise fixing and guiding of the steel pipe. Combined with the detachable design of the limit plate, it facilitates the installation and disassembly of the steel pipe.

Benefits of technology

It enables precise bending based on the diameter of the steel pipe, ensuring that the bending radius meets the requirements, and facilitates the installation and disassembly of the steel pipe, thereby improving the applicability and ease of operation of the bending equipment.

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Abstract

The utility model discloses a kind of bending equipment for pipe processing, it is related to pipe processing technical field, including base, the top of base is fixedly connected with side plate, the side of side plate is fixedly connected with first mounting column, the outside of first mounting column is movably sleeved with first fixed tube, the outside of first fixed tube is connected with half drive disc by bearing, the outside of half drive disc is equipped with guide slot, the outside of first mounting column one end is equipped with first thread, the outside of first mounting column is screw-connected with first nut by first thread, the outside of first mounting column and located the side of half drive disc Fixedly sleeved with first positioning sleeve, this bending equipment for pipe processing is set with first fixed tube, half drive disc and guide wheel, can be according to the diameter of the steel bar or steel pipe that need to bend, replace half drive disc and guide wheel and positioning pipe matched with it, to fix the orientation to steel bar or steel pipe, to bend steel bar or steel pipe.

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Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, specifically a bending device for pipe processing. Background Technology

[0002] During construction, manual bending of steel columns, pipes, and other tubular materials is required. This necessitates the use of manual bending machines. According to the manual pipe bender with application number CN206527190U, it features a reasonable structural design and ease of use, enabling manual bending of steel pipes, making it convenient for on-site use in factories and enterprises. However, when bending steel pipes of different diameters, the forming groove is mismatched with the pipe diameter, resulting in an excessively large groove diameter and pipe misalignment within the groove, leading to an actual bending radius greater than required. Therefore, a bending device for pipe processing is proposed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a bending device for pipe processing, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a bending device for pipe processing, comprising a base, a side plate fixedly connected to the top of the base, a first mounting column fixedly connected to one side of the side plate, a first fixing tube movably sleeved on the outer side of the first mounting column, a semi-drive disc connected to the outer side of the first fixing tube via a bearing, a guide groove formed on the outer side of the semi-drive disc, a first thread formed on the outer side of one end of the first mounting column, a first nut threadedly connected to the outer side of the first mounting column via the first thread, a first positioning sleeve fixedly sleeved on the outer side of the first mounting column and located on one side of the semi-drive disc, with one end of the first positioning sleeve and one end of the first nut respectively abutting against both ends of the first fixing tube.

[0005] Preferably, a positioning tube is fixedly connected to the top of the semi-drive disk. The surface of the positioning tube is provided with threaded grooves, and each threaded groove is threaded with a tightening screw. One end of each tightening screw extends into the interior of the positioning tube, and the other end of each tightening screw extends to the outside of the positioning tube.

[0006] Preferably, a second mounting block is fixedly connected to the top of the base and to the right side of the side plate. A second mounting post is fixedly connected to one side of the second mounting block. A second fixing tube is movably sleeved on the outer side of the second mounting post. A guide wheel is connected to the outer side of the second fixing tube via a bearing. A second thread is provided on the outer side of one end of the second mounting post. A second nut is threaded to the outer side of the second mounting post via the second thread. A second positioning sleeve is fixedly sleeved on the outer side of the second mounting post and to the side of the guide wheel. The ends of the second positioning sleeve and the second nut near the guide wheel respectively abut against the two ends of the second fixing tube.

[0007] Preferably, a mounting groove is provided on one side of the base, a limiting plate is inserted into the mounting groove, the top end of the limiting plate extends to the top of the base, a second screw is threadedly connected inside the limiting plate, a threaded hole is provided inside the base at one end of the mounting groove, and one end of the second screw extends into the threaded hole and is threadedly connected to the inside of the threaded hole.

[0008] Preferably, a mounting base is fixedly connected to the top of the semi-drive disk, and a handle is inserted inside the mounting base, with the top of the handle extending above the mounting base.

[0009] Preferably, a threaded groove is provided on one side of the mounting base, and a first screw is threadedly connected inside the threaded groove. One end of the first screw extends into the positioning groove provided on the outside of the handle, and the other end of the first screw extends into the outside of the mounting base. An insertion hole is provided on one side of the limiting plate at one end of the first mounting post and the second mounting post, and one end of the first mounting post and the second mounting post respectively extends into the two insertion holes.

[0010] This utility model provides a bending device for pipe processing, which has the following beneficial effects: 1. This pipe bending equipment, by being equipped with a first fixed pipe, a semi-drive disc and a guide wheel, can change the semi-drive disc, guide wheel and positioning pipe that match the diameter of the steel bar or steel pipe to be bent, thereby fixing and guiding the steel bar or steel pipe, and thus bending the steel bar or steel pipe.

[0011] 2. This pipe bending equipment, by setting a limit plate, a second screw and an installation groove, allows for the installation of steel bars or pipes and the removal of bent steel bars or pipes. One end of the second screw can be unscrewed from the threaded hole to release the limiting plate, and then the limit plate can be removed from the base. This allows the tightening screw to be rotated to release the limiting on one end of the steel bar or pipe, thereby fixing the steel bar or pipe to be bent or disassembling the bent steel bar or pipe. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure on the base of this utility model; Figure 3 This utility model Figure 2 Top view of the structure; Figure 4 This is a schematic diagram of the inner structure of the limiting plate of this utility model; Figure 5 This is a schematic diagram of the outer structure of one end of the first mounting post of this utility model; Figure 6 This is a schematic diagram of the outer structure of one end of the second mounting post of this utility model.

[0013] In the diagram: 1. Base; 2. Side plate; 3. First mounting post; 4. First fixing tube; 5. Half-drive disc; 6. Guide groove; 7. First nut; 8. First positioning sleeve; 9. Handle; 10. Mounting seat; 11. First screw; 12. Second mounting block; 13. Second mounting post; 14. Second positioning sleeve; 15. Second fixing tube; 16. Second nut; 17. Mounting groove; 18. Limiting plate; 19. Second screw; 20. Threaded hole; 21. Insertion hole; 22. Guide wheel; 23. Positioning tube; 24. Tightening screw; 25. First thread; 26. Second thread. Detailed Implementation

[0014] 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.

[0015] Example 1 Please see Figures 1 to 6 This utility model provides a technical solution: a bending device for pipe processing, including a base 1, a side plate 2 fixedly connected to the top of the base 1, a first mounting column 3 fixedly connected to one side of the side plate 2, a first fixing tube 4 movably sleeved on the outside of the first mounting column 3, a semi-drive disk 5 connected to the outside of the first fixing tube 4 through a bearing, a guide groove 6 opened on the outside of the semi-drive disk 5, a first thread 25 opened on the outside of one end of the first mounting column 3, a first nut 7 threadedly connected to the outside of the first mounting column 3 through the first thread 25, a first positioning sleeve 8 fixedly sleeved on the outside of the first mounting column 3 and located on one side of the semi-drive disk 5, and one end of the first positioning sleeve 8 and one end of the first nut 7 respectively abutting against the two ends of the first fixing tube 4.

[0016] A positioning tube 23 is fixedly connected to the top of the semi-drive disk 5. The surface of the positioning tube 23 is provided with threaded grooves, and each threaded groove is threaded with a tightening screw 24. One end of the tightening screw 24 extends into the interior of the positioning tube 23, and the other end of the tightening screw 24 extends to the outside of the positioning tube 23. The positioning tube 23 and the tightening screw 24 fix one end of the steel rod or steel pipe.

[0017] A second mounting block 12 is fixedly connected to the top of the base 1 and to the right side of the side plate 2. A second mounting post 13 is fixedly connected to one side of the second mounting block 12. A second fixing tube 15 is movably sleeved on the outside of the second mounting post 13. A guide wheel 22 is connected to the outside of the second fixing tube 15 through a bearing. A second thread 26 is opened on the outside of one end of the second mounting post 13. A second nut 16 is threadedly connected to the outside of the second mounting post 13 through the second thread 26. A second positioning sleeve 14 is fixedly sleeved on the outside of the second mounting post 13 and to the side of the guide wheel 22. The ends of the second positioning sleeve 14 and the second nut 16 near the guide wheel 22 respectively abut against the two ends of the second fixing tube 15, fixing the guide wheel 22 and the second nut 16 to the outside of the second mounting post 13.

[0018] A mounting groove 17 is provided on one side of the base 1. A limiting plate 18 is inserted into the mounting groove 17. The top of the limiting plate 18 extends to the top of the base 1. A second screw 19 is threadedly connected inside the limiting plate 18. A threaded hole 20 is provided inside the base 1 at one end of the mounting groove 17. One end of the second screw 19 extends into the threaded hole 20 and is threadedly connected inside the threaded hole 20. The limiting plate 18 is installed on the base 1 by the second screw 19, the threaded hole 20, and the mounting groove 17.

[0019] A mounting base 10 is fixedly connected to the top of the semi-drive disk 5. A handle 9 is inserted inside the mounting base 10. The top of the handle 9 extends above the mounting base 10. The handle 9 is used to drive the semi-drive disk 5 to rotate, so that the semi-drive disk 5 can bend the steel bar or steel pipe.

[0020] Example 2 Please see Figures 1 to 4 The present invention provides a technical solution: a threaded groove is provided on one side of the mounting base 10, and a first screw 11 is threadedly connected inside the threaded groove. One end of the first screw 11 extends into the positioning groove provided on the outside of the handle 9, and the other end of the first screw 11 extends into the outside of the mounting base 10. An insertion hole 21 is provided on one side of the limiting plate 18 at one end of the first mounting post 3 and the second mounting post 13. One end of the first mounting post 3 and the second mounting post 13 extends into the two insertion holes 21 respectively. The handle 9 is installed inside the mounting base 10 by the first screw 11, the mounting base 10 and the positioning groove.

[0021] In summary, when using this pipe bending equipment, one end of a steel rod or pipe is inserted into the positioning tube 23. Then, the tightening screw 24 is rotated so that one end of the tightening screw 24 holds the end of the steel rod or pipe in place. Next, the limiting plate 18 is placed on the base 1, with its bottom end positioned inside the mounting groove 17. Then, one end of the second screw 19 is screwed into the threaded hole 20, so that one end of the first mounting post 3 and the second mounting post 13 are respectively inserted into the two insertion holes 21. Finally, the user drives the semi-drive disc 5 to rotate along the outside of the first fixed tube 4 using the handle 9. The steel rod or pipe is bent by the semi-drive disc 5 and the guide groove 6. After bending, one end of the second screw 19 is unscrewed from the threaded hole 20 to release the limiting plate 18. Then, the limiting plate 18 is removed from the base 1. Next, one end of the first screw 11 is unscrewed from the positioning groove on the outside of the handle 9. Then, the handle 9 is removed from the mounting base 10. Finally, the first fixing tube 4 is unscrewed from the outside of the first mounting post 3 to release the limiting fixation between the first fixing tube 4 and the semi-drive disc 5. Then, the first fixing tube 4 and the semi-drive disc 5 are removed from the outside of the first mounting post 3. The semi-drive disc 5, mounted on the guide groove 6 that matches the required bending diameter, is fitted onto the outside of the first mounting post 3, so that the first fixing tube 4 inside the semi-drive disc 5 is fitted onto the outside of the first mounting post 3. Then, the first nut 7 is screwed onto the outside of the first mounting post 3, and the position of the first fixing tube 4 is limited and fixed by the first nut 7 and the first positioning sleeve 8, thereby fixing the semi-drive disc 5 onto the first mounting post 3. Then, the second nut 16 is unscrewed from the outside of the second mounting post 13, and the second fixing tube 15 and guide wheel 22 are removed from the second mounting post 13, and the part that matches the required bending diameter is then placed on top. The guide wheel 22 is fitted onto the outside of the second mounting post 13, so that the second fixing tube 15 inside the guide wheel 22 is fitted onto the outside of the second mounting post 13. Then, the second nut 16 is screwed onto the outside of the second mounting post 13, thereby limiting and fixing the second fixing tube 15 through the second nut 16 and the second positioning sleeve 14, thus installing the guide wheel 22 on the outside of the second mounting post 13. The bottom end of the handle 9 is inserted into the mounting base 10, and then one end of the first screw 11 is screwed into the positioning groove through the thread groove, thus installing the handle 9 inside the mounting base 10 and installing the handle 9 on the half drive disk 5.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A bending device for pipe processing, comprising a base (1), characterized in that: A side plate (2) is fixedly connected to the top of the base (1). A first mounting post (3) is fixedly connected to one side of the side plate (2). A first fixing tube (4) is movably sleeved on the outside of the first mounting post (3). A half-drive disk (5) is connected to the outside of the first fixing tube (4) through a bearing. A guide groove (6) is opened on the outside of the half-drive disk (5). A first thread (25) is opened on the outside of one end of the first mounting post (3). A first nut (7) is threadedly connected to the outside of the first mounting post (3) through the first thread (25). A first positioning sleeve (8) is fixedly sleeved on the outside of the first mounting post (3) and on one side of the half-drive disk (5). One end of the first positioning sleeve (8) and one end of the first nut (7) respectively abut against the two ends of the first fixing tube (4).

2. The bending equipment for pipe processing according to claim 1, characterized in that: The top of the semi-drive disk (5) is fixedly connected to a positioning tube (23). The surface of the positioning tube (23) is provided with a threaded groove, and a tightening screw (24) is threadedly connected inside the threaded groove. One end of the tightening screw (24) extends into the inside of the positioning tube (23), and the other end of the tightening screw (24) extends to the outside of the positioning tube (23).

3. The bending equipment for pipe processing according to claim 1, characterized in that: A second mounting block (12) is fixedly connected to the top of the base (1) and to the right side of the side plate (2). A second mounting post (13) is fixedly connected to one side of the second mounting block (12). A second fixing tube (15) is movably sleeved on the outside of the second mounting post (13). A guide wheel (22) is connected to the outside of the second fixing tube (15) through a bearing. A second thread (26) is opened on the outside of one end of the second mounting post (13). A second nut (16) is threadedly connected to the outside of the second mounting post (13) through the second thread (26). A second positioning sleeve (14) is fixedly sleeved on the outside of the second mounting post (13) and to one side of the guide wheel (22). The ends of the second positioning sleeve (14) and the second nut (16) near the guide wheel (22) respectively abut against the two ends of the second fixing tube (15).

4. The bending equipment for pipe processing according to claim 1, characterized in that: The base (1) has an installation groove (17) on one side, and a limiting plate (18) is inserted into the installation groove (17). The top of the limiting plate (18) extends to the top of the base (1). A second screw (19) is threaded inside the limiting plate (18). A threaded hole (20) is opened inside the base (1) and at one end of the installation groove (17). One end of the second screw (19) extends into the threaded hole (20) and is threadedly connected to the inside of the threaded hole (20).

5. A bending device for pipe processing according to claim 4, characterized in that: The top of the semi-drive disk (5) is fixedly connected to a mounting base (10), and a handle (9) is inserted inside the mounting base (10), with the top of the handle (9) extending above the mounting base (10).

6. The bending equipment for pipe processing according to claim 5, characterized in that: The mounting base (10) has a threaded groove on one side, and a first screw (11) is threaded inside the threaded groove. One end of the first screw (11) extends into the positioning groove on the outside of the handle (9), and the other end of the first screw (11) extends into the outside of the mounting base (10). The limiting plate (18) has a socket (21) on one side and at one end of the first mounting post (3) and the second mounting post (13). One end of the first mounting post (3) and the second mounting post (13) extends into the two sockets (21) respectively.