A pipe bending device
By designing a portable pipe bending device that uses a handwheel and screw to drive the pressure roller to descend and rotate, the problems of low pipe bending efficiency and large equipment size in existing technologies have been solved, enabling efficient on-site pipe bending operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI GANGYI ELECTROMECHANICAL TECH CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-28
AI Technical Summary
In existing technologies, the efficiency of bending pipelines on the construction site is low, and the bending machines are large and heavy, making them inconvenient to carry and operate.
A pipe bending device comprising a frame, guide wheels, and pressure rollers was designed. The pressure rollers are driven to descend and rotate by a handwheel-driven screw and rotating shaft, thereby achieving pipe bending operations. The frame structure is compact and easy to carry.
It improves the efficiency and portability of pipe bending, allowing one operator to complete the pipe bending operation on site.
Smart Images
Figure CN224559726U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe processing technology, specifically to a pipe bending device. Background Technology
[0002] A pipeline is a system of pipes, pipe fittings, valves, and other components used to transport gases, liquids, or fluids containing solid particles. Typically, fluids are pressurized by blowers, compressors, pumps, and boilers, flowing from high-pressure areas to low-pressure areas within the pipeline. Alternatively, the fluid's own pressure or gravity can be used for transport. Pipelines have a wide range of applications, primarily in water supply, drainage, heating, gas supply, long-distance transport of oil and natural gas, agricultural irrigation, hydraulic engineering, and various industrial installations.
[0003] In the hydropower industry, various pipes are frequently used, such as metal pipes less than 20mm in diameter. During construction, due to the non-standard conditions at the construction site, the pipes can only be processed on-site. In some locations, the pipes need to be bent, so construction workers manually bend the pipes, resulting in low bending efficiency. Some construction sites also use bending machines, but bending machines are large in size and heavy, making them inconvenient to carry. Utility Model Content
[0004] This invention provides a pipe bending device that is easy to carry and operate, and improves pipe bending efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A pipe bending device includes a frame, two guide rollers, and one pressure roller. A pressure table is installed inside the frame, and linear bearings are installed at the four corners of the pressure table. Guide posts are installed inside the frame, passing through the linear bearings. The middle of the pressure table is connected to the bottom of a lead screw, and the top of the lead screw passes through the top of the frame. A handwheel is installed on the top of the lead screw. A rotating shaft is installed at the pressure table, with the pressure roller installed at one end of the rotating shaft and the handwheel installed at the other end. Two guide rollers are installed on one side of the frame, and the guide rollers and the pressure roller are located on the same side.
[0007] Preferably, the guide wheel is perpendicular to the axis of the pressure wheel, and the guide wheel and the pressure wheel are located on the same horizontal plane.
[0008] Preferably, the frame includes a top plate, a bottom plate, and support columns, with the top plate and bottom plate connected by four support columns, and the pressure table located between the top plate and the bottom plate.
[0009] Preferably, the centers of the two guide wheels are mounted on the mounting shaft, which is mounted on the support column, and the pressure roller is located in the middle of the two guide wheels.
[0010] Preferably, the pressure table includes a pressure top plate and a rotating shaft mounting block. The rotating shaft mounting block is installed at the lower middle of the pressure top plate, and a rotating shaft mounting hole is provided at the rotating shaft mounting block. Bearings are installed at both ends of the rotating shaft mounting hole.
[0011] Preferably, a lead screw clearance groove is provided in the middle of the pressure plate, and two bearing seat mounting grooves are provided on both sides of the lead screw clearance groove. Bearing seats are installed in the bearing seat mounting grooves, and the bottom of the lead screw is installed in the bearing seats.
[0012] Preferably, a bearing housing is installed at the middle of the upper end of the pressure plate, and a lead screw nut is installed at the middle of the lower end of the pressure plate, with the lead screw passing through the bearing housing and the lead screw nut.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This utility model is small in size, easy to carry and place. By shaking the handwheel on the top, the pressure table is driven to descend, which in turn drives the pressure roller to descend, thus bending the pipe. Then, shaking the handwheel on the side drives the pressure roller to rotate, which in turn moves the pipe, thus bending the pipe. The entire operation can be performed by one operator, making it convenient for on-site operation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of an embodiment of the present utility model.
[0016] Figure 2 This is a schematic diagram from another perspective of an embodiment of the present utility model.
[0017] Figure 3 This is a schematic diagram of an embodiment of the present invention after the top plate has been removed.
[0018] Figure 4 This is a schematic diagram of the pressure table according to an embodiment of the present invention.
[0019] Figure 5 This is a schematic diagram of the bottom of the pressure table according to an embodiment of the present invention. Detailed Implementation
[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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] As shown in the figure, this utility model discloses a pipe bending device, including a frame 1, two guide wheels 2, and one pressure wheel 3. A pressure table 4 is installed inside the frame 1, and linear bearings 5 are installed at the four corners of the pressure table 4. Guide posts 6 are installed inside the frame 1, passing through the linear bearings 5. The middle of the pressure table 4 is connected to the bottom of a lead screw 7, and the top of the lead screw 7 passes through the top of the frame 1. A handwheel 8 is installed on the top of the lead screw 7. A rotating shaft 9 is installed at the pressure table 4, with the pressure wheel 3 installed at one end of the rotating shaft 9 and the handwheel 8 installed at the other end. Two guide wheels 2 are installed on one side of the frame 1, and the guide wheels 2 and the pressure wheel 3 are located on the same side. First, a straight pipe A is placed on the two guide wheels 2. Then, the top handwheel 8 is manually turned, which drives the lead screw 7 to rotate and descend, driving the pressure table 4 to descend, which in turn drives the pressure wheel 3 to descend. The pressure wheel 3 bends the pipe A, thus achieving the pipe bending action. When the target position is reached, the other handwheel 8 is turned, driving the rotating shaft 9 to rotate. The rotating shaft 9 drives the pressure wheel 3 to rotate, driving the pipe A to move.
[0022] In one embodiment of this invention, the guide wheel 2 and the pressure wheel 3 are perpendicular to each other, and the guide wheel 2 and the pressure wheel 3 are located on the same horizontal plane. This ensures that pipe A can be bent to the target value.
[0023] In one embodiment of this utility model, the frame 1 includes a top plate 11, a bottom plate 12, and support columns 13. The top plate 11 and the bottom plate 12 are connected by four support columns 13, and the pressure table 4 is located between the top plate 11 and the bottom plate 12. The entire frame 1 is small in size, making it convenient to transport and place.
[0024] In one embodiment of this utility model, the centers of two guide wheels 2 are mounted on mounting shafts 10, which are respectively mounted on support columns 13, and the pressure roller 3 is located in the middle of the two guide wheels 2. The guide wheels 2 serve to support the pipe A.
[0025] In one embodiment of this utility model, the pressure table 4 includes a pressure top plate 41 and a rotating shaft mounting block 42. The rotating shaft mounting block 42 is installed at the lower middle of the pressure top plate 41, and a rotating shaft mounting hole 421 is provided at the rotating shaft mounting block 42. Bearings 14 are installed at both ends of the rotating shaft mounting hole 421. The rotating shaft 9 rotates at the rotating shaft mounting hole 421, thereby driving the pressure roller 3 to rotate.
[0026] In one embodiment of this utility model, a lead screw clearance groove 411 is provided in the middle of the pressure plate 41, and two bearing seat mounting grooves 412 are provided on both sides of the lead screw clearance groove 411. Bearing seats 15 are installed in the bearing seat mounting grooves 412, and the bottom of the lead screw 7 is installed in the bearing seat 15. The lead screw 7 rises and falls, driving the bearing seat 15 to rise and fall, thereby driving the pressure table 4 to rise and fall.
[0027] In one embodiment of this utility model, a bearing seat 15 is installed at the middle of the upper end of the pressure plate 41, and a lead screw nut 16 is installed at the middle of the lower end of the pressure plate 41. The lead screw 7 passes through the bearing seat 15 and the lead screw nut 16. The bearing seat 15 and the lead screw nut 16 serve to guide the lead screw 7.
[0028] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.
Claims
1. A pipe bending device, characterized in that: It includes a frame, two guide rollers, and one pressure roller. A pressure table is installed inside the frame, and linear bearings are installed at the four corners of the pressure table. Guide columns are installed inside the frame, passing through the linear bearings. The middle of the pressure table is connected to the bottom of the lead screw, and the top of the lead screw passes through the top of the frame. A handwheel is installed on the top of the lead screw. A rotating shaft is installed at the pressure table, with the pressure roller installed at one end and the handwheel installed at the other end. Two guide rollers are installed on one side of the frame, and the guide rollers and the pressure roller are located on the same side.
2. The pipe bending device according to claim 1, characterized in that: The guide wheel is perpendicular to the axis of the pressure wheel, and the guide wheel and the pressure wheel are located on the same horizontal plane.
3. The pipe bending device according to claim 2, characterized in that: The frame includes a top plate, a bottom plate, and supporting columns. The top plate and the bottom plate are connected by four supporting columns, and the pressure table is located between the top plate and the bottom plate.
4. A pipe bending device according to claim 3, characterized in that: The center of the two guide wheels is mounted on the mounting shaft, which is mounted on the support column. The pressure roller is located in the middle of the two guide wheels.
5. A pipe bending device according to claim 4, characterized in that: The pressure table includes a pressure top plate and a rotating shaft mounting block. The rotating shaft mounting block is installed at the lower middle of the pressure top plate, and a rotating shaft mounting hole is provided at the rotating shaft mounting block. Bearings are installed at both ends of the rotating shaft mounting hole.
6. A pipe bending device according to claim 5, characterized in that: The pressure plate has a lead screw clearance groove in the middle, and two bearing seat mounting grooves on both sides of the lead screw clearance groove. The bearing seat is installed in the bearing seat mounting groove, and the bottom of the lead screw is installed in the bearing seat.
7. A pipe bending device according to claim 3, characterized in that: A bearing housing is installed at the middle of the upper end of the pressure plate, and a lead screw nut is installed at the middle of the lower end of the pressure plate. The lead screw passes through the bearing housing and the lead screw nut.