PE pipe bending angle shaping limiting frame
By designing a combination of a limit frame main board, a sliding groove, and a height adjustment mechanism, the problem of frequent mold changes during the bending process of PE pipes was solved, achieving stable angle shaping for pipes of different specifications, reducing costs and improving bending accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN SHENGHENUO NEW MATERIALS CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-19
AI Technical Summary
Existing PE pipe bending retainers require multiple fixing molds, which increases the cost of use and makes it difficult to adapt to the needs of pipes of different sizes.
A PE pipe bending angle shaping and limiting frame is designed, including a limiting frame main board, a sliding groove, an angle holding seat, a bearing groove and a height adjustment mechanism. The angle shaping and limiting of pipes of different specifications can be achieved by combining the adjustment mechanism and the angle holding wheel.
It achieves stable support and angle maintenance for PE pipes of different sizes, reduces the frequency of mold replacement, reduces usage costs, and ensures that the predetermined angle standard is met every time it is bent.
Smart Images

Figure CN224374855U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PE / PVC pipes, and in particular to a bending angle shaping and limiting bracket for PE pipes. Background Technology
[0002] PE pipes (polyethylene pipes) are pipes produced from polyethylene (PE) material through an extrusion molding process. Polyethylene is a polymer material with excellent physical and chemical properties and is widely used in various pipeline systems. Due to its lightweight, high strength, and corrosion resistance, PE pipes have become an indispensable material in modern pipeline engineering.
[0003] During the bending process of PE (polyethylene) pipes, specialized molds are typically used for fixing and supporting the pipes to ensure they maintain the predetermined angle and shape after bending. This process not only affects the appearance and installation quality of the pipes but also their performance and reliability during subsequent use.
[0004] Currently, most angle bending retainers used for PE pipes use specially designed fixed molds to fix the PE pipes in place. When the size of the PE pipe to be maintained changes, the fixed molds must be replaced to maintain the angle of the PE pipe. This method not only requires the prefabrication of more fixed molds, which increases the cost of use, but also requires custom-made molds when the size of the PE pipe does not match the size of the prefabricated fixed molds, which further increases the cost of use.
[0005] Therefore, a PE pipe bending angle shaping and limiting bracket is proposed to solve the above problems. Utility Model Content
[0006] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a PE pipe bending angle shaping and limiting frame, which can adapt to various specifications of PE pipes and shape and limit their angles by setting the angle shaping and limiting frame.
[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0008] A PE pipe bending angle shaping and limiting bracket includes two limiting bracket main boards arranged in parallel.
[0009] Both of the main boards of the limiting frame have a sliding groove vertically formed in the middle section. The two sliding grooves are arranged opposite to each other and an angle holding seat is slidably arranged between them.
[0010] The side of the limiting frame main board is equipped with a height adjustment mechanism, which is connected to one side of the angle holding seat;
[0011] Both of the limiting frame main boards are provided with a plurality of bearing grooves along their transverse direction, and the plurality of bearing grooves are equidistantly distributed on both sides of the sliding groove;
[0012] It also includes two support columns, each of which is fitted with a lower angle retaining wheel, and the support columns are disposed between two support grooves that are arranged opposite to each other;
[0013] The height adjustment mechanism includes a height adjustment frame disposed on one side of one of the limit frame main boards. The height adjustment frame is U-shaped and is equipped with bearings on both the upper and lower sides. A threaded screw is rotatably disposed between the two bearings.
[0014] Furthermore, the angle holding seat includes an inverted U-shaped mounting seat, which is disposed between the two limiting bracket main boards. A mounting shaft is mounted on the mounting seat and slides between the two sliding grooves. An upper angle holding wheel is sleeved on the outside of the mounting shaft.
[0015] Furthermore, the angle holding seat includes an inverted U-shaped mounting seat, which is disposed between the two limiting bracket main boards. A mounting shaft is mounted on the mounting seat and slides between the two sliding grooves. An upper angle holding wheel is sleeved on the outside of the mounting shaft.
[0016] Furthermore, the height adjustment mechanism also includes a forward and reverse motor mounted on the top of the height adjustment frame. The top end of the threaded screw passes through the height adjustment frame and extends to connect with the output end of the forward and reverse motor. Two guide rods are also mounted on the side of the height adjustment frame. Both guide rods are vertically arranged and pass through both sides of the connecting seat.
[0017] Furthermore, each end of the two bearing columns is integrally provided with a limit nut. The bearing columns are movably disposed between two oppositely disposed bearing grooves. The PE pipe body is jointly supported above the two lower angle retaining wheels. The PE pipe body is disposed below the upper angle retaining wheel. The upper angle retaining wheel and the two lower angle retaining wheels are distributed in a triangular shape.
[0018] Furthermore, several sets of connecting rods are installed between the two limiting frame main boards, and the two limiting frame main boards are kept at an interval through the connecting rods.
[0019] In summary, this utility model has the following beneficial effects:
[0020] 1. The two limit bracket main boards are used to support the load-bearing column, and the load-bearing grooves on the limit bracket main boards can be used to freely adjust the load-bearing column and the lower angle holding wheels, so that it can adapt to PE pipe bodies of different lengths and support the PE pipe body. The height adjustment mechanism can be used to precisely adjust the height of the angle holding seat. In actual use, when the PE pipe body needs to be angle-fixed after bending, the two lower angle holding wheels with a triangular layout can cooperate with the downward pressure of the upper angle holding wheel to provide a stable support point for the PE pipe body, effectively fixing the angle of the PE pipe body after bending and ensuring that the predetermined angle standard is reached for each bend. At the same time, by adjusting the height adjustment mechanism, the height of the upper angle holding wheel can be easily changed, so that the upper angle holding wheel, together with the two lower angle holding wheels, can adapt to the shaping and limiting requirements of PE pipe bodies with different bending radii and angles. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure in this embodiment;
[0022] Figure 2 This is a schematic diagram of the separation structure of the limit frame main board in this embodiment;
[0023] Figure 3 This is a schematic diagram of the overall installation structure of the angle holding seat in this embodiment;
[0024] Figure 4 This is a schematic diagram of the overall structure of the height adjustment mechanism in this embodiment.
[0025] In the diagram, 1. Limiting bracket main board; 11. Connecting rod; 2. Sliding groove; 3. Bearing groove; 4. Bearing column; 41. Limiting nut; 5. Lower angle retaining wheel; 6. PE pipe body; 7. Height adjustment mechanism; 71. Height adjustment bracket; 72. Bearing; 73. Threaded screw; 74. Screw nut; 75. Connecting seat; 76. Smooth rod; 77. Forward and reverse motor; 8. Angle retaining seat; 81. Mounting seat; 82. Mounting shaft; 83. Upper angle retaining wheel. Detailed Implementation
[0026] The present invention will be further described in detail below with reference to the accompanying drawings.
[0027] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.
[0028] First embodiment;
[0029] Reference Figure 1-4 As shown, this is a PE pipe bending angle shaping and limiting frame in a preferred embodiment of the present invention, including two limiting frame main boards 1 arranged in parallel.
[0030] Both limit bracket main boards 1 have vertical sliding grooves 2 in the middle section. The two sliding grooves 2 are arranged opposite to each other and an angle holding seat 8 is slidably arranged between them.
[0031] The side of the limit bracket main board 1 is equipped with a height adjustment mechanism 7, which is connected to one side of the angle holding seat 8;
[0032] Both limit frame main boards 1 have several bearing grooves 3 opened along their transverse direction, and the several bearing grooves 3 are equidistantly distributed on both sides of the sliding groove 2;
[0033] It also includes two support columns 4, each of which is fitted with a lower angle retaining wheel 5. The support columns 4 are positioned between two support grooves 3 that are arranged opposite to each other.
[0034] The height adjustment mechanism 7 includes a height adjustment frame 71 disposed on one side of one of the limit frame main boards 1. The height adjustment frame 71 is U-shaped and is equipped with bearings 72 on both the upper and lower sides. A threaded screw 73 is rotatably disposed between the two bearings 72.
[0035] In this embodiment, the two limiting bracket main boards 1 can be used to support the bearing column 4, and the bearing groove 3 set on the limiting bracket main board 1 can be used to freely adjust the bearing column 4 and the lower angle holding wheel 5 at intervals, so that it can adapt to PE pipe body 6 of different lengths and support the PE pipe body 6. The height adjustment mechanism 7 can be used to precisely adjust the height of the angle holding seat 8. In actual use, when the PE pipe body 6 needs to be angle-fixed after bending, the two lower angle holding wheels 5 with a triangular layout can cooperate with the downward pressure of the upper angle holding wheel 83 to provide a stable support point for the PE pipe body 6, effectively fixing the angle of the PE pipe body 6 after bending, ensuring that each bend reaches the predetermined angle standard; at the same time, by adjusting the height adjustment mechanism 7, the height of the upper angle holding wheel 83 can be easily changed, so that the upper angle holding wheel 83, together with the two lower angle holding wheels 5, can adapt to the shaping and limiting requirements of PE pipe body 6 with different bending radii and angles.
[0036] Second embodiment;
[0037] Reference Figure 1-3As shown, the angle holding seat 8 includes an inverted U-shaped mounting seat 81, which is located between two limit bracket main boards 1. A mounting shaft 82 is mounted on the mounting seat 81, which slides between two sliding grooves 2. An upper angle holding wheel 83 is sleeved on the outside of the mounting shaft 82.
[0038] In this embodiment, the mounting base 81 is disposed between the two limit bracket main boards 1, and the mounting shaft 82 is disposed at both ends through the mounting base 81 and extends into the sliding groove 2 in a sliding state. One end of the mounting shaft 82 passes through the sliding groove 2 and extends to connect with the height adjustment mechanism 7.
[0039] Third embodiment;
[0040] Reference Figure 4 As shown, the threaded screw 73 is externally threaded and fitted with a screw nut 74. A connecting seat 75 is sleeved on the outside of the screw nut 74, and the side of the connecting seat 75 is connected to one end of the mounting shaft 82.
[0041] In this embodiment, the threaded screw 73 is configured to rotate between two bearings 72.
[0042] Fourth embodiment;
[0043] Reference Figure 4 As shown, the height adjustment mechanism 7 also includes a forward and reverse motor 77 disposed on the top of the height adjustment frame 71. The top end of the threaded screw 73 passes through the height adjustment frame 71 and extends to connect with the output end of the forward and reverse motor 77. Two guide rods 76 are also installed on the side of the height adjustment frame 71. Both guide rods 76 are vertically arranged and pass through both sides of the connecting seat 75.
[0044] In this embodiment, when the threaded screw 73 is rotating in both directions, it is laterally restricted by the two smooth rods 76 on the connecting seat 75, so that the screw nut 74, which is threaded on the outside of the threaded screw 73, can drive the connecting seat 75 to reciprocate linearly along the thread stroke of the threaded screw 73.
[0045] Furthermore, the forward and reverse motor 77 can be connected to a power supply and a controller to control the forward and reverse rotation direction and number of rotations of the lead screw 73.
[0046] Fifth embodiment;
[0047] Reference Figure 1-2 As shown, both ends of the two bearing columns 4 are integrally provided with limit nuts 41. The bearing columns 4 are movably disposed between the two opposite bearing grooves 3. The PE pipe body 6 is jointly supported above the two lower angle retaining wheels 5. The PE pipe body 6 is disposed below the upper angle retaining wheel 83. The upper angle retaining wheel 83 and the two lower angle retaining wheels 5 are triangularly distributed.
[0048] In this embodiment, the limiting nuts 41 can be used to limit the two ends of the bearing column 4, thereby preventing the bearing column 4 from slipping out of the bearing groove 3. In use, the user places the bearing column 4 between the two limiting bracket main boards 1. At this time, the bearing groove 3 can be used to support and limit the bearing column 4. The limiting nuts 41 at both ends of the bearing column 4 will be outside the bearing groove 3, thereby limiting the position of the bearing column 4. The user can freely place the position of the bearing column 4 according to the length of the PE pipe body 6.
[0049] Sixth embodiment;
[0050] Reference Figure 1-2 As shown, several sets of connecting rods 11 are installed between the two limit frame main boards 1, and the two limit frame main boards 1 are kept at an interval by the connecting rods 11.
[0051] In this embodiment, the connecting rod 11 can be used to engage with the nut to maintain the position of the two limit frame main boards 1 and to keep the limit frame main boards 1 spaced apart.
[0052] Specific implementation process:
[0053] Step 1: After the PE pipe body 6 is bent by the bending equipment, the user first adjusts the distance between the two support columns 4 according to the length of the PE pipe body 6 and its bending angle, so that the two support columns 4 can be located at both ends of the PE pipe body 6 and can support the PE pipe body 6; during this period, the user places the support columns 4 between the two limit frame main boards 1, and at this time, the support columns 4 can be supported and limited by the interval distribution of the support grooves 3. The user can freely adjust the position of the support columns 4 according to the length of the PE pipe body 6. Then, the user can place the PE pipe body 6 on the two lower angle holding wheels 5, and the lower angle holding wheels 5 provide initial support for the PE pipe body 6;
[0054] Step 2: The user controls the overall height of the angle holding seat 8 through the height adjustment mechanism 7, thereby controlling the upper angle holding wheel 83 to descend according to the bending angle of the PE pipe body 6 until the upper angle holding wheel 83 contacts the bending point of the PE pipe body 6. At this time, the two lower angle holding wheels 5, which are arranged in a triangular shape, can cooperate with the downward pressure of the upper angle holding wheel 83 to provide a stable support point for the PE pipe body 6, effectively fixing the angle of the PE pipe body 6 after bending, and ensuring that each bend reaches the predetermined angle standard.
[0055] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
[0056] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description in the specification and the accompanying drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
Claims
1. A PE pipe bending angle shaping and limiting bracket, characterized in that: Includes two parallel limit frame mainboards (1); The two limiting bracket main boards (1) are provided with sliding grooves (2) in the middle section along their vertical direction. The two sliding grooves (2) are arranged opposite to each other and an angle holding seat (8) is slidably arranged between them. The side of the limiting frame main board (1) is equipped with a height adjustment mechanism (7), and the height adjustment mechanism (7) is connected to one side of the angle holding seat (8); Both of the limiting frame main boards (1) are provided with a plurality of bearing grooves (3) along their transverse direction, and the plurality of bearing grooves (3) are equidistantly distributed on both sides of the sliding groove (2); It also includes two support columns (4), each of which is fitted with a lower angle retaining wheel (5), and the support columns (4) are located between two support grooves (3) that are arranged opposite to each other; The height adjustment mechanism (7) includes a height adjustment frame (71) disposed on one side of one of the limit frame main boards (1). The height adjustment frame (71) is U-shaped and is equipped with bearings (72) on both the upper and lower sides. A threaded screw (73) is rotatably disposed between the two bearings (72).
2. The PE pipe bending angle shaping and limiting bracket according to claim 1, characterized in that: The angle holding seat (8) includes an inverted U-shaped mounting seat (81) disposed between the two limit frame main boards (1). A mounting shaft (82) is mounted on the mounting seat (81), and the mounting shaft (82) slides between the two sliding grooves (2). An upper angle holding wheel (83) is sleeved on the outside of the mounting shaft (82).
3. The PE pipe bending angle shaping and limiting bracket according to claim 2, characterized in that: The threaded screw (73) is externally threaded and fitted with a screw nut (74), and a connecting seat (75) is sleeved on the outside of the screw nut (74). The side of the connecting seat (75) is connected to one end of the mounting shaft (82).
4. The PE pipe bending angle shaping and limiting bracket according to claim 3, characterized in that: The height adjustment mechanism (7) also includes a forward and reverse motor (77) set on the top of the height adjustment frame (71). The top end of the threaded screw (73) passes through the height adjustment frame (71) and extends to connect with the output end of the forward and reverse motor (77). Two light rods (76) are also installed on the side of the height adjustment frame (71). Both light rods (76) are vertically arranged and pass through both sides of the connecting seat (75).
5. The PE pipe bending angle shaping and limiting bracket according to claim 2, characterized in that: Both ends of the two bearing columns (4) are integrally provided with limit nuts (41). The bearing columns (4) are movably disposed between the two opposite bearing grooves (3). The PE pipe body (6) is jointly supported above the two lower angle retaining wheels (5). The PE pipe body (6) is disposed below the upper angle retaining wheel (83). The upper angle retaining wheel (83) and the two lower angle retaining wheels (5) are triangularly distributed.
6. The PE pipe bending angle shaping and limiting bracket according to claim 1, characterized in that: Several sets of connecting rods (11) are installed between the two limiting frame main boards (1), and the two limiting frame main boards (1) are kept at an interval by the connecting rods (11).