Simple pipe bending tool jacked by manual bolt
A simple pipe bending tool with manual bolt tightening solves the problems of high labor intensity in manual pipe bending and high cost in mechanical pipe bending, achieving fast, low-cost, and easy-to-control pipe bending, suitable for small-batch processing.
Patent Information
- Application Number
- CN202520400095.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-10
AI Technical Summary
In existing technologies, manual pipe bending is labor-intensive and the angle is difficult to control, while mechanical pipe bending is costly and takes up a lot of space, making it unsuitable for all enterprises.
Design a simple manual bolt-tightening pipe bending tool, including a base, a pipe bending mold, a pipe pressing part, and a pipe pressing wheel. The pipe is clamped and bent by screwing the bolt into the threaded hole, and the pipe pressing wheel is used to increase the contact area to prevent slippage.
It enables fast, low-cost, and easily controllable pipe bending, reduces labor intensity, ensures good consistency of bending angle, is easy to operate, and is suitable for small-batch processing.
Smart Images

Figure CN223819411U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe bending technology, specifically a simple pipe bending tool for manual bolt tightening. Background Technology
[0002] In the steel production process, steel pipes often need to be bent. Existing technologies include manual bending, which is labor-intensive and difficult to control in terms of bending angle and consistency. Mechanical bending requires specific equipment, is costly, and takes up a lot of space, making it unsuitable for all companies. Therefore, a simple manual bolt-tightening pipe bending tool is proposed. Utility Model Content
[0003] The present invention aims to solve the above problems and thus provide a simple pipe bending tool for manual bolt tightening.
[0004] The technical solution adopted by this utility model to solve the aforementioned problem is:
[0005] A simple pipe bending tool for manual bolt tightening includes a base, a pipe bending die is provided on the top of the base, the pipe bending die includes a straight section and an arc section, the arc surface of the arc section of the pipe bending die is adapted to the curvature of the pipe to be bent, a pipe pressing part is provided on the base and on one side of the straight section of the pipe bending die, and a pipe bending part is provided on the base and on one side of the arc section of the pipe bending die.
[0006] The bending section is composed of multiple bending components, each including a support plate and bolts. The support plate is vertically fixed to the base, and the support plate has threaded holes for use with the bolts. After the bolts are screwed into the threaded holes, their ends abut against the pipe to be bent.
[0007] Furthermore, the pressing section is composed of multiple pressing assemblies, each including a support plate and bolts. The support plate is vertically fixed to the base, and the support plate has threaded holes for use with the bolts. After the bolts are screwed into the threaded holes, their ends abut against the pipe to be bent. The multiple pressing assemblies cooperate with the bending mold to clamp and fix the pipe to be bent.
[0008] Furthermore, a sliding groove is provided on the base, on the side of each support plate near the bending mold. A pressing wheel and a pressing wheel bracket are provided above the sliding groove. The pressing wheel is movably mounted on the pressing wheel bracket by a positioning pin. The pressing wheel bracket is slidably connected to the base through the sliding groove. As the bolt is screwed in, the pressing wheel bracket is pushed and the pressing wheel is moved toward the tube to be bent. The pressing wheel contacts the tube to be bent and applies pressure to the tube to be bent to bend it, thereby increasing the contact area with the tube to be bent and preventing the tube from collapsing.
[0009] Furthermore, the surface of the pressing roller is provided with grooves arranged around the circumference of the pressing roller surface; this increases the contact area with the pipe to be bent and prevents the pipe from slipping out during the pressing process.
[0010] Furthermore, the pressure roller bracket is U-shaped, with slots on both sides of the vertical section near the lower horizontal section, and the sliding groove is inverted T-shaped, with the lower horizontal section of the pressure roller bracket located in the sliding groove; the pressure roller bracket can slide in the sliding groove, and the lower horizontal section of the pressure roller bracket is embedded in the sliding groove to prevent the pressure roller bracket from falling off.
[0011] Furthermore, the bending die is composed of multiple guide wheels, and the surface of the guide wheels is provided with guide wheel grooves arranged around the circumference of the guide wheel surface; this increases the contact area with the pipe to be bent, and at the same time prevents the pipe from slipping out during the pressing process.
[0012] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:
[0013] This invention enables rapid bending of pipes by tightening bolts, eliminating the need for complex power sources, resulting in low manufacturing costs, simple operation, and minimal space requirements. It facilitates convenient and quick pipe bending, reducing labor intensity while ensuring easy control and consistent bending angles, thus lowering manufacturing costs and improving operational convenience. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model;
[0015] Figure 2 This is a three-dimensional structural diagram of an embodiment of the present utility model;
[0016] Figure 3 This is a schematic diagram of the main structure of the pressure roller bracket according to an embodiment of the present utility model;
[0017] The components in the diagram are marked as follows: 1. Base; 2. Bending mold; 3. Pipe to be bent; 4. Pressing section; 5. Bending section; 6. Slide groove; 7. Pressing wheel bracket; 8. Pressing wheel; 9. Bolt; 10. Support plate; 21. Guide wheel; 71. Bayonet. Detailed Implementation
[0018] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.
[0019] See Figures 1-3A simple pipe bending tool for manual bolt tightening includes a base 1, a pipe bending mold 2 is provided above the base 1, the pipe bending mold 2 includes a straight section and an arc section, the arc surface of the arc section of the pipe bending mold 2 is adapted to the curvature of the pipe 3 to be bent, a pipe pressing part 4 is provided on the base 1 and on one side of the straight section of the pipe bending mold 2, and a pipe bending part 5 is provided on the base 1 and on one side of the arc section of the pipe bending mold 2.
[0020] The bending section 5 is composed of multiple bending components, each including a support plate 10 and a bolt 9. The support plate 10 is vertically fixed to the base 1. The support plate 10 has a threaded hole that mates with the bolt 9. After the bolt 9 is screwed into the threaded hole, its end abuts against the pipe 3 to be bent.
[0021] Furthermore, the pressing section 4 is composed of multiple pressing components, each including a support plate 10 and a bolt 9. The support plate 10 is vertically fixed to the base 1, and the support plate 10 has a threaded hole for use with the bolt 9. After the bolt 9 is screwed into the threaded hole, its end abuts against the pipe 3 to be bent. The multiple pressing components cooperate with the bending mold 2 to clamp and fix the pipe 3 to be bent.
[0022] Furthermore, a sliding groove 6 is provided on the base 1 on the side of each support plate 10 near the bending mold 2. A pressing wheel 8 and a pressing wheel bracket 7 are provided above the sliding groove 6. The pressing wheel 8 is movably mounted on the pressing wheel bracket 7 by a positioning pin. The pressing wheel bracket 7 is slidably connected to the base 1 through the sliding groove 6. As the bolt 9 is screwed in, it pushes the pressing wheel bracket 7 and drives the pressing wheel 8 to move towards the pipe to be bent 3. The pressing wheel 8 contacts the pipe to be bent 3 and applies pressure to the pipe to be bent to bend it, thereby increasing the contact area with the pipe to be bent 3 and preventing the pipe from collapsing.
[0023] Furthermore, the surface of the pressing roller 8 is provided with grooves arranged around the circumference of the surface of the pressing roller 8; this increases the contact area with the pipe 3 to be bent, and at the same time prevents the pipe from slipping out during the pressing process.
[0024] Furthermore, the pressure roller bracket 7 is U-shaped, with slots 71 on both sides of the vertical section and near the lower horizontal section, and the sliding groove 6 is inverted T-shaped, with the lower horizontal section of the pressure roller bracket 7 embedded in the sliding groove 6; the pressure roller bracket 7 can slide in the sliding groove 6, and the lower horizontal section of the pressure roller bracket 7 is located in the sliding groove 6 to prevent the pressure roller bracket 7 from falling off.
[0025] Furthermore, the bending die 2 is composed of multiple guide wheels 21, and the surface of the guide wheels 21 is provided with guide wheel grooves arranged around the circumference of the surface of the guide wheels 21; this increases the contact area with the pipe to be bent 3, and at the same time prevents the pipe from slipping out during the pressing process.
[0026] When using this utility model, the heated tube to be bent 3 is placed between multiple guide rollers 21 and pressing rollers 8. The worker uses a wrench or quick wrench to tighten multiple bolts 9 on the pressing part 4 to fix the tube to be bent 3. Then, the multiple bolts 9 on the bending part 5 are tightened to bend the tube to be bent until it is completely in contact with the arc section of the bending mold 2. After the bent tube 3 cools down, the bolts 9 are loosened and the formed tube is taken out. It is suitable for on-site processing of small batches of tubes with fixed bending arc.
[0027] This invention enables rapid bending of pipes by tightening bolts, eliminating the need for complex power sources, resulting in low manufacturing costs, simple operation, and minimal space requirements. It facilitates convenient and quick pipe bending, reducing labor intensity while ensuring easy control and consistent bending angles, thus lowering manufacturing costs and improving operational convenience.
[0028] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.
Claims
1. A simple manual bolt-tightening pipe bending tool, comprising a base, characterized in that: A pipe bending mold is provided above the base. The pipe bending mold includes a straight section and an arc section. The arc surface of the arc section of the pipe bending mold is adapted to the curvature of the pipe to be bent. A pipe pressing part is provided on the base and on one side of the straight section of the pipe bending mold. A pipe bending part is provided on the base and on one side of the arc section of the pipe bending mold. The bending section is composed of multiple bending components, each including a support plate and bolts. The support plate is vertically fixed to the base, and the support plate has threaded holes for use with the bolts. After the bolts are screwed into the threaded holes, their ends abut against the pipe to be bent.
2. The simple pipe bending tool for manual bolt tightening according to claim 1, characterized in that: The pressing section consists of multiple pressing components, each including a support plate and bolts. The support plate is vertically fixed to the base, and the support plate has threaded holes for use with the bolts. After the bolts are screwed into the threaded holes, their ends abut against the pipe to be bent.
3. The simple pipe bending tool for manual bolt tightening according to claim 2, characterized in that: The base has a sliding groove on the side of each support plate near the bending mold. A pressing wheel and a pressing wheel bracket are installed above the sliding groove. The pressing wheel is movably installed on the pressing wheel bracket by a positioning pin. The pressing wheel bracket is slidably connected to the base through the sliding groove.
4. The simple pipe bending tool for manual bolt tightening according to claim 3, characterized in that: The surface of the pressure roller is provided with grooves arranged around the circumference of the pressure roller surface.
5. The simple pipe bending tool for manual bolt tightening according to claim 3, characterized in that: The pressure roller bracket is U-shaped, with slots on both sides of the vertical section near the lower horizontal section, and the slide groove is inverted T-shaped, with the lower horizontal section of the pressure roller bracket embedded in the slide groove.
6. The simple pipe bending tool for manual bolt tightening according to claim 1, characterized in that: The bending die is composed of multiple guide wheels, and the surface of the guide wheels is provided with guide wheel grooves arranged around the circumference of the guide wheel surface.