A bending arc equipment for hydrogen energy pipe processing

By employing an arc-shaped reinforcing plate and a rigid support structure on the inner wall of the curved tube in the bending equipment for hydrogen tube processing, combined with an arc-shaped airbag and spring adaptive adjustment, the problem of bending path deviation in traditional equipment has been solved, achieving high-precision and stable hydrogen tube bending processing.

CN224444216UActive Publication Date: 2026-07-03SHANGHAI ZUNMA AUTO PIPE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI ZUNMA AUTO PIPE CO LTD
Filing Date
2025-06-09
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional hydrogen tube bending equipment lacks the force to wrap the tube 360 ​​degrees, causing the bending path to deviate from the design curvature and failing to meet the requirements of high-precision processing.

Method used

The bending equipment used for hydrogen tube processing forms a rigid support structure with the inner wall of the bent tube through the arc-shaped reinforcing plate. Combined with the adaptive adjustment of the arc-shaped airbag and spring, it ensures that the bending path strictly follows the design arc and disperses the reaction force, thereby improving the stability of the equipment.

Benefits of technology

It ensures precise pipe bending path during the bending process, reduces wrinkles and cracks, improves bending accuracy and surface quality, and is suitable for mass production.

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    Figure CN224444216U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of hydrogen tube processing technology and discloses a bending device for hydrogen tube processing, including a base on which a hydrogen tube body is placed. A movable structure is provided on the base, including a top block. The top block is mounted on the base, and protruding plates are fixedly installed on the upper and lower outer walls of the top block. Sliding blocks are fixedly installed at both ends of the lower surface of the top block via the protruding plates. In this bending device, an arc-shaped reinforcing plate is connected to a spring via a T-shaped column and located outside the arc-shaped airbag, forming a rigid support structure with the inner wall of the bending tube. When the airbag inflates, the arc-shaped reinforcing plate restricts excessive deformation of the airbag, ensuring that the bending path of the tube strictly follows the arc contour of the bending tube during bending, guaranteeing the accuracy of the bending radius. Simultaneously, the rigid contact between the reinforcing plate and the bending tube disperses the reaction force generated during bending, improving the overall stability of the device.
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Description

Technical Field

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

[0002] In the field of hydrogen energy pipe processing, bending is one of the key processes that determines the performance of the pipe. As hydrogen energy systems place increasing demands on the sealing performance and structural strength of pipes, the technological bottlenecks of traditional bending equipment are becoming increasingly apparent.

[0003] Traditional processes lack dynamic support for the pipe bending process: when bending the pipe, it only relies on the support of one side of the mold, which lacks the 360-degree wrapping force on the pipe wall, causing the bending path to deviate from the design curvature and failing to meet the requirements of high-precision processing. Therefore, we propose a bending device for hydrogen energy pipe processing to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a bending device for hydrogen energy pipe processing, which solves the problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a bending device for processing hydrogen energy tubes, including a device base, on which a hydrogen energy tube body is placed, and a movable structure is provided on the device base.

[0006] The movable structure includes a top block, which is mounted on the equipment base. Protruding plates are fixedly installed on the upper and lower outer walls of the top block. Sliding blocks are fixedly installed on both ends of the lower surface of the top block through the protruding plates. T-shaped threaded sleeves are fixedly installed on the lower surface of the top block through the protruding plates.

[0007] A curved tube is fixedly installed on the base of the equipment. An arc-shaped reinforcing plate is provided inside the curved tube. An arc-shaped airbag is movably installed between the curved tube and the arc-shaped reinforcing plate.

[0008] A drive motor is fixedly installed on the base of the device. A threaded rod is fixedly connected to the output end of the drive motor. A T-shaped threaded sleeve is threadedly connected to the outer wall of the threaded rod. The drive motor is used to drive the threaded rod to rotate.

[0009] Furthermore, a connecting plate is fixedly installed on the outer wall of the curved tube, baffles are fixedly installed on the outer walls of both ends of the curved tube, a through hole is opened on the outer wall of the middle end of the curved tube, a T-shaped column is movably connected in the through hole, a spring is sleeved on the outer wall of the curved tube outside the T-shaped column, and an arc-shaped reinforcing plate is fixedly installed on one end of the T-shaped column.

[0010] Furthermore, the equipment base has a cavity inside, a moving hole is formed on the upper surface of the equipment base, and sliding grooves are formed at both ends of the upper surface of the equipment base.

[0011] Furthermore, the arc-shaped airbags on the inner wall of the curved tube are distributed in an arc shape, and the arc-shaped airbags have built-in inflation devices for inflating the arc-shaped airbags to press against the hydrogen energy tube body.

[0012] Furthermore, the two ends of the threaded rod are installed in the equipment base through bearing seats, and its axial direction is consistent with the direction of the moving hole. When the T-shaped threaded sleeve moves along the axial direction of the threaded rod, it drives the protruding plate and the sliding block to slide synchronously.

[0013] Furthermore, the outer wall of the T-shaped threaded sleeve is slidably connected to the moving hole, and the outer wall of the sliding block is slidably connected to the sliding groove.

[0014] The beneficial effects of this utility model are:

[0015] This bending equipment for hydrogen energy pipe processing features an arc-shaped reinforcing plate connected to a spring via a T-shaped column. Located outside the arc-shaped airbag, it forms a rigid support structure with the inner wall of the bending pipe. When the airbag inflates, the arc-shaped reinforcing plate restricts excessive deformation, ensuring that the bending path of the pipe strictly follows the arc contour of the bending pipe during the bending process, thus guaranteeing the accuracy of the bending radius. At the same time, the rigid contact between the reinforcing plate and the bending pipe can disperse the reaction force generated when the pipe is bent, improving the overall stability of the equipment.

[0016] This bending equipment for hydrogen energy tube processing uses the elasticity of springs to adaptively adjust the bending force, avoiding damage to the tube surface caused by rigid bending. After inflation through the inflation device inside the arc-shaped air bladder on the inner wall of the bent tube, the arc-shaped reinforcing plate can fit tightly against the outer wall of the hydrogen energy tube body, providing uniform circumferential support force. The arc-shaped reinforcing plate and the bent tube work together to form a rigid skeleton, preventing excessive deformation of the air bladder, ensuring uniform stress on the tube during bending, effectively reducing defects such as wrinkles and cracks, and improving bending accuracy and surface quality.

[0017] 3. The bending device for processing hydrogen energy pipes is slidably connected to the base of the equipment through a sliding block via a sliding groove. When the T-shaped threaded sleeve moves along the moving hole, the cooperation between the T-shaped column and the through hole can limit the shaking of the arc-shaped reinforcing plate. Combined with the limiting effect of the spring, it ensures that the arc-shaped reinforcing plate and the movable structure move smoothly and are guided accurately, avoiding the deviation of the bending position caused by shaking. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0021] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 4 This is a partial sectional view of the curved pipe structure of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Equipment base; 2. Hydrogen tube body; 3. Movable structure; 31. Top block; 32. Protruding plate; 33. Sliding block; 34. T-shaped threaded sleeve; 4. Curved tube; 5. Connecting plate; 6. Baffle; 7. Through hole; 8. T-shaped column; 9. Spring; 10. Arc-shaped reinforcing plate; 11. Arc-shaped airbag; 12. Cavity; 13. Moving hole; 14. Slide groove; 15. Drive motor; 16. Threaded rod. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Please see Figures 1-4 A bending device for processing hydrogen energy tubes includes a base 1, a hydrogen energy tube body 2 placed on the base 1, and a movable structure 3 provided on the base 1.

[0026] The active structure 3 includes a top block 31, which is set on the equipment base 1. The upper and lower outer walls of the top block 31 are fixedly installed with protruding plates 32. The two ends of the lower surface of the top block 31 are fixedly installed with sliding blocks 33 through the protruding plates 32. The lower surface of the top block 31 is fixedly installed with T-shaped threaded sleeves 34 through the protruding plates 32.

[0027] A curved tube 4 is fixedly installed on the equipment base 1. An arc-shaped reinforcing plate 10 is provided inside the curved tube 4. An arc-shaped airbag 11 is movably installed between the curved tube 4 and the arc-shaped reinforcing plate 10.

[0028] A drive motor 15 is fixedly installed on the equipment base 1. A threaded rod 16 is fixedly connected to the output end of the drive motor 15. A T-shaped threaded sleeve 34 is threadedly connected to the outer wall of the threaded rod 16. The drive motor 15 is used to drive the threaded rod 16 to rotate.

[0029] In this embodiment, the drive motor 15 drives the threaded rod 16 to rotate, and in conjunction with the thread transmission of the T-shaped threaded sleeve 34, the sliding block 33 and the top block 31 can be quickly driven to move along the moving hole 13, realizing automatic bending or loosening of the hydrogen energy tube body 2; the elastic effect of the spring 9 can adaptively adjust the bending force, avoid damage to the tube surface caused by rigid bending, significantly shorten the bending time, and is suitable for mass production; the arc-shaped reinforcing plate 10 is connected to the spring 8 through the T-shaped column 8 and is located outside the arc-shaped airbag 11, forming a rigid support structure with the inner wall of the curved tube 4; when the airbag is inflated, the arc-shaped reinforcing plate 10 restricts the excessive deformation of the airbag, ensuring that the bending path of the tube strictly follows the arc contour of the curved tube 4 during the bending process, and ensuring the accuracy of the bending radius; at the same time, the rigid contact between the reinforcing plate and the curved tube 4 can disperse the reaction force generated when the tube is bent, and improve the overall stability of the equipment.

[0030] Reference Figures 1-3 As shown, a connecting plate 5 is fixedly installed on the outer wall of the curved pipe 4, baffles 6 are fixedly installed on the outer walls of both ends of the curved pipe 4, a through hole 7 is opened on the outer wall of the middle end of the curved pipe 4, a T-shaped column 8 is movably connected in the through hole 7, a spring 9 is sleeved on the outer wall of the curved pipe 4 outside the T-shaped column 8, and an arc-shaped reinforcing plate 10 is fixedly installed on one end of the T-shaped column 8.

[0031] Reference Figure 1 , Figure 2 As shown, a cavity 12 is provided inside the equipment base 1, a moving hole 13 is provided on the upper surface of the equipment base 1, and sliding grooves 14 are provided at both ends of the upper surface of the equipment base 1.

[0032] Reference Figure 3 , Figure 4 As shown, the arc-shaped airbags 11 on the inner wall of the curved tube 4 are distributed in an arc shape. The arc-shaped airbags 11 have built-in inflation devices for inflating the arc-shaped airbags 11 to press against the hydrogen energy tube body 2.

[0033] In this embodiment, after the inflation device in the arc-shaped airbag 11 on the inner wall of the curved tube 4 is inflated, the arc-shaped reinforcing plate 10 can be tightly attached to the outer wall of the hydrogen tube body 2, providing uniform circumferential support force. The arc-shaped reinforcing plate 10 and the curved tube 4 cooperate to form a rigid skeleton, preventing excessive deformation of the airbag, ensuring uniform stress on the tube during the bending process, effectively reducing defects such as wrinkles and cracks, and improving bending accuracy and surface quality.

[0034] Reference Figure 2 As shown, the two ends of the threaded rod 16 are installed in the equipment base 1 through bearing seats, and its axial direction is consistent with the direction of the moving hole 13. When the T-shaped threaded sleeve 34 moves along the axial direction of the threaded rod 16, it drives the protruding plate 32 and the sliding block 33 to slide synchronously.

[0035] In this embodiment, the sliding block 33 is slidably connected to the equipment base 1 through the sliding groove 14. When the T-shaped threaded sleeve 34 moves along the moving hole 13, the cooperation between the T-shaped column 8 and the through hole 7 can limit the shaking of the arc-shaped reinforcing plate 10. Combined with the limiting effect of the spring 9, it ensures that the arc-shaped reinforcing plate 10 and the movable structure 3 move smoothly and are guided accurately, avoiding the displacement of the curved position caused by shaking.

[0036] Reference Figure 2 , Figure 4 As shown, the outer wall of the T-shaped threaded sleeve 34 is slidably connected to the moving hole 13, and the outer wall of the sliding block 33 is slidably connected to the sliding groove 14.

[0037] In use, the hydrogen tube body 2 is placed on the equipment base 1 between the curved tube 4 and the top block 31, and the arc center line of the curved tube 4 is aligned to ensure that the part of the tube to be bent is aligned with the inner cavity of the curved tube 4. Then, the drive motor 15 is started to rotate forward, and the threaded rod 16 rotates to drive the T-shaped threaded sleeve 34 to move axially, which drives the sliding block 33 to slide towards the curved tube 4 through the sliding groove 14. The top block 31 pushes the hydrogen tube body 2 towards the inner wall of the curved tube 4 through the protruding plate 32. The hydrogen tube body 2 undergoes plastic deformation under the arc guidance of the curved tube 4. The arc reinforcing plate 10 cooperates with the curved tube 4 to limit the excessive deformation of the airbag and ensure the accuracy of the bending radius.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bending arc equipment for hydrogen energy pipe processing, comprising an equipment base (1), characterized in that: The hydrogen tube body (2) is placed on the equipment base (1), and the equipment base (1) is provided with a movable structure (3). The movable structure (3) includes a top block (31), which is mounted on the equipment base (1). The top block (31) has protruding plates (32) fixedly installed on the upper and lower outer walls. Sliding blocks (33) are fixedly installed on both ends of the lower surface of the top block (31) through the protruding plates (32). T-shaped threaded sleeves (34) are fixedly installed on the lower surface of the top block (31) through the protruding plates (32). A curved tube (4) is fixedly installed on the equipment base (1). An arc-shaped reinforcing plate (10) is provided inside the curved tube (4). An arc-shaped airbag (11) is movably installed between the curved tube (4) and the arc-shaped reinforcing plate (10). A drive motor (15) is fixedly installed on the equipment base (1). A threaded rod (16) is fixedly connected to the output end of the drive motor (15). A T-shaped threaded sleeve (34) is threadedly connected to the outer wall of the threaded rod (16).

2. The bending apparatus for hydrogen energy pipe processing according to claim 1, characterized by: A connecting plate (5) is fixedly installed on the outer wall of the curved tube (4). Baffles (6) are fixedly installed on the outer walls of both ends of the curved tube (4). A through hole (7) is opened on the outer wall of the middle end of the curved tube (4). A T-shaped column (8) is movably connected in the through hole (7). A spring (9) is sleeved on the outer wall of the curved tube (4) outside the T-shaped column (8). An arc-shaped reinforcing plate (10) is fixedly installed on one end of the T-shaped column (8).

3. The arc bending apparatus for hydrogen energy pipe processing according to claim 1, characterized in that: The equipment base (1) has a cavity (12) inside, a moving hole (13) is provided on the upper surface of the equipment base (1), and sliding grooves (14) are provided at both ends of the upper surface of the equipment base (1).

4. The arc bending apparatus for hydrogen energy pipe processing according to claim 1, characterized in that: The arc-shaped airbags (11) on the inner wall of the curved tube (4) are distributed in an arc shape, and the arc-shaped airbags (11) have built-in inflation devices.

5. The arc bending apparatus for hydrogen energy pipe processing according to claim 1, characterized in that: The threaded rod (16) is installed in the equipment base (1) at both ends through bearing seats, and its axial direction is consistent with the direction of the moving hole (13). When the T-shaped threaded sleeve (34) moves along the axial direction of the threaded rod (16), it drives the protruding plate (32) and the sliding block (33) to slide synchronously.

6. The arc bending apparatus for hydrogen energy pipe processing according to claim 5, characterized in that: The outer wall of the T-shaped threaded sleeve (34) is slidably connected in the moving hole (13), and the outer wall of the sliding block (33) is slidably connected in the groove (14).