A biaxially oriented PVC pipe for electricity

Abstract

The utility model relates to the field of PVC pipe especially relates to a double -axle orientation PVC pipe for electric power, including pipe body, swivel frame, limit disc and flexible strip, pipe body both sides are equipped with the joint, the joint one side is equipped with the installation groove no.

Description

Technical Field

[0001] This utility model relates to the field of PVC pipes, and in particular to a biaxially oriented PVC pipe for power applications. Background Technology

[0002] PVC pipe is a type of plastic pipe made primarily from polyvinyl chloride resin. It is produced by extruding PVC using a plastic extruder with the addition of stabilizers, lubricants, and other additives. Its main characteristics include corrosion resistance, good insulation, non-flammability, high strength, and low fluid resistance. Therefore, it is widely used in many fields such as drainage systems, water supply pipes, and cable protection conduits in buildings, making it an economical and practical basic building material.

[0003] While existing technologies can achieve the desired butt joint effect for PVC pipes, they suffer from several drawbacks: misalignment, gaps, and misalignment during subsequent sealing operations due to a lack of effective auxiliary tools, all of which affect the connection's sealing performance and structural strength. In light of this, we propose a biaxially oriented PVC pipe for power applications, which solves these problems. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a biaxially oriented PVC pipe for power applications.

[0005] The technical solution of this utility model is as follows: A biaxially oriented PVC pipe for power applications includes a pipe body, a rotating frame, a limiting disc, and a flexible strip. The pipe body has joints on both sides. One side of the joint has a first mounting groove arranged in a ring array. The rotating frame is rotatably mounted inside the first mounting groove. The outer wall of the joint has a groove. A hexagonal prism is rotatably mounted inside the groove. The hexagonal prism is rotatably connected to the mounting frame. A limiting disc is provided inside the groove. The other side of the joint has a second mounting groove. A flexible strip is provided inside the second mounting groove. When using this device, the tubes on both sides are axially aligned. During alignment, the flexible strip is unfolded and inserted into the through hole inside the rotating frame. Then, the hexagonal prism is rotated to cause the flexible strip to wrap around the surface of the rotating frame. When the tubes on both sides are aligned and fit together, the protrusion can just fit into the positioning hole to prevent slippage. Then, the limit keys on both sides of the limit plate are inserted into the limit groove to prevent the rotating frame from rotating. This achieves a stable fit between the tubes and provides auxiliary processing for the subsequent sealing connection between the tubes, preventing cross gaps from appearing when connecting the tubes, which would affect the sealing effect.

[0006] Preferably, the inner wall of the groove is provided with limiting grooves arranged in a circular array, and the outer wall of the limiting plate is provided with a straight limiting key. The limiting key is inserted into the limiting groove. Through the insertion and cooperation of the limiting key and the limiting groove, a simple, reliable and circumferentially accurate anti-reverse mechanism is provided. Once the limiting plate is inserted, it can firmly prevent the rotation of the hexagonal prism and the rotating frame, ensuring that the flexible strip is locked in the tensioned state, thereby maintaining the stability of the tube body docking. The operation is intuitive and the locking is firm.

[0007] Preferably, the limiting disc is inserted into the surface of the hexagonal prism, and a limiting block is provided at the upper end of the hexagonal prism. The insertion and engagement of the limiting disc and the hexagonal prism allows the locking action to be directly applied to the torque input component (hexagonal prism), resulting in high locking efficiency. The limiting block at the upper end of the hexagonal prism also serves as an axial positioning element, preventing the hexagonal prism from dislodging from the groove when rotating or inserting the limiting disc, thus improving the safety of the entire operation and the integration of the components.

[0008] Preferably, the rotating frame has a through hole in the middle, which provides a unique and well-guided path for the insertion and winding of the flexible strip. This ensures that the flexible strip can be wound in an orderly manner on the surface of the rotating frame during the winding process, avoiding disorder, crossing or jamming of the flexible strip inside the joint, ensuring a smooth and controllable tightening process, and is the basis for achieving the uniform tightening function.

[0009] Preferably, the flexible strip has positioning holes arranged in a linear array on its surface. One side of each positioning hole has a protrusion on both sides. The positioning holes and the double-sided protrusion together form a one-way anti-slip mechanism. When the flexible strip is wound, the corresponding components on the rotating frame (such as the protrusions) can interact with the protrusions and positioning holes to produce a ratchet-like effect, allowing the flexible strip to be wound smoothly in the tightening direction while effectively resisting the tendency to loosen in the opposite direction. This achieves self-locking and precise positioning during the tightening process and prevents docking failure caused by loosening before final locking.

[0010] Preferably, when the flexible strip is opened, the positioning hole is farther away from the rotation center of the flexible strip than the positioning hole. This arrangement ensures that when the flexible strip is pulled out from the mounting groove 2 and is ready to be wound, the protrusions and positioning holes on it can engage with the drive components on the rotating frame in the correct direction. This optimizes the engagement conditions, reduces the impact and wear during initial engagement, ensures that the anti-slip mechanism can work reliably from the beginning of the tensioning operation, and improves the smoothness and reliability of the entire tensioning process.

[0011] Compared with existing technologies, the advantages of this utility model are: This invention provides an active, controllable pipe-connection auxiliary device with locking function, fundamentally improving the accuracy, efficiency, and reliability of pipe connection. Traditional pipe connection methods, especially for large-diameter pipes or those requiring high sealing levels, typically rely on manual calibration, clamp fixation, or simple binding. These methods are not only time-consuming and labor-intensive, but also struggle to ensure uniform and sustained stability of the connecting ends. Even minor displacements during subsequent welding or gluing can lead to incomplete sealing or stress concentration. This device, through its unique "flexible strip-rotating frame-hexagonal prism-limiting disc" linkage mechanism, achieves a mechanized and quantifiable tightening and locking process. Specifically, the operator simply unfolds the flexible strip, inserts it into the through-hole of the rotating frame, and then uses a tool to rotate the hexagonal prism. By continuously and evenly applying radial tightening force through the winding of the flexible strip, the two pipes are pulled closer until their ends are completely aligned. The positioning holes and protrusions on the flexible strip form a one-way anti-slip structure, effectively preventing slippage during tightening and achieving phased self-locking. Once the connection is complete, inserting the limiting plate will lock the rotating frame and hexagonal prism in place via the engagement of the limiting key and the limiting groove, forming a robust mechanical barrier to prevent any accidental loosening. This design ensures that the pipe interface maintains an ideal connection state throughout the entire subsequent sealing connection operation, greatly reducing the risk of leakage or connection failure due to poor connection.

[0012] Based on the first beneficial effect, this device also has significant advantages in terms of ease of use, adaptability, and safety. Firstly, its operation is simple and intuitive, requiring no complex equipment or advanced skills; ordinary workers can operate it proficiently after simple training, effectively reducing construction difficulty and labor costs. Secondly, the device has a compact structure, integrated inside the joint, occupying minimal external space and suitable for various narrow or complex installation environments. The flexible strip design allows it to adapt to a certain range of pipe diameters and minor misalignments, providing good fault tolerance. Finally, in terms of safety, the mechanical locking mechanism (limiting disc) is far more reliable than temporary fixing methods relying on friction or spring pressure, completely eliminating potential safety accidents caused by clamp failure during critical welding and other hot processing. Simultaneously, all transmission and locking components are encapsulated within the joint groove, reducing the risk of external impact damage and accidental contact. In summary, this utility model not only solves the core pain points of pipe docking but also brings comprehensive improvements in overall construction efficiency, cost control, and operational safety.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] Figure 1 This is a three-dimensional perspective view of the present invention from a first angle; Figure 2This is a two-dimensional perspective view of the present invention. Figure 3 This is a three-dimensional perspective view of the present invention. Figure 4 For the present utility model Figure 1 Enlarged schematic diagram of structure A in the middle; Figure 5 For the present utility model Figure 2 Enlarged schematic diagram of the B-structure; Figure 6 For the present utility model Figure 3 Enlarged schematic diagram of the C-structure.

[0015] Figure label: 1. Pipe body; 2. Connector; 3. Groove; 4. Limiting block; 5. Limiting disc; 6. Mounting groove one; 7. Rotating frame; 8. Limiting groove; 9. Hexagonal prism; 10. Through hole; 11. Mounting groove two; 12. Positioning hole; 13. Flexible strip; 14. Protrusion. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0020] Example 1

[0021] Please see Figures 1-6As shown, this embodiment is a biaxially oriented PVC pipe for power applications, including a pipe body 1, a rotating frame 7, a limiting disc 5, and a flexible strip 13. The pipe body 1 has joints 2 on both sides. One side of the joints 2 has a mounting groove 6 arranged in a ring array. The rotating frame 7 is rotatably installed inside the mounting groove 6. The outer wall of the joints 2 has a groove 3. A hexagonal prism 9 is rotatably installed inside the groove 3. The hexagonal prism 9 is rotatably connected to the mounting frame. The limiting disc 5 is located inside the groove 3. The other side of the joints 2 has a mounting groove 11. The flexible strip 13 is located inside the mounting groove 11. When using this device, the two tubes 1 are axially aligned. During alignment, the flexible strip 13 is unfolded and inserted into the through hole 10 inside the rotating frame 7. Then, the hexagonal prism 9 is rotated to cause the flexible strip 13 to wrap around the surface of the rotating frame 7. When the two tubes 1 are aligned and fit together, the protrusion 14 can be inserted into the positioning hole 12 to prevent slippage. Then, the limiting keys on both sides of the limiting plate 5 are inserted into the limiting groove 8 to prevent the rotating frame 7 from rotating. This achieves a stable fit between the tubes 1, which is an auxiliary treatment for the subsequent sealing connection between the tubes 1 and prevents the occurrence of interlaced gaps when connecting the tubes 1, thus affecting the sealing effect.

[0022] The inner wall of the groove 3 has a ring-shaped array of limiting grooves 8, and the outer wall of the limiting plate 5 has a straight limiting key. The limiting key is inserted into the limiting groove 8. The insertion and engagement of the limiting key and the limiting groove 8 provides a simple, reliable, and circumferentially accurate anti-reverse mechanism. Once the limiting plate 5 is inserted, it can firmly prevent the rotation of the hexagonal prism 9 and the rotating frame 7, ensuring that the flexible strip 13 is locked in the tensioned state, thereby maintaining the stability of the tube body 1 docking. The operation is intuitive and the locking is firm.

[0023] Example 2

[0024] Please see Figures 1-6 As shown, this embodiment, based on embodiment 1, further includes: a limiting disc 5 inserted into the surface of the hexagonal prism 9, and a limiting block 4 provided at the upper end of the hexagonal prism 9. The insertion and engagement of the limiting disc 5 and the hexagonal prism 9 allows the locking action to be directly applied to the torque input component (hexagonal prism 9), resulting in high locking efficiency. The limiting block 4 at the upper end of the hexagonal prism 9 serves as an axial positioning element, preventing the hexagonal prism 9 from dislodging from the groove 3 when rotating the hexagonal prism 9 or inserting the limiting disc 5, thereby improving the safety of the entire operation process and the integration of the components.

[0025] A through hole 10 is provided in the middle of the rotating frame 7. This through hole 10 provides a unique and well-guided path for the insertion and winding of the flexible strip 13. It ensures that the flexible strip 13 can be wound in an orderly manner on the surface of the rotating frame 7 during the winding process, avoiding disorder, crossing or jamming of the flexible strip 13 inside the joint 2. This ensures that the tightening process is smooth and controllable, which is the basis for achieving the uniform tightening function.

[0026] The flexible strip 13 has positioning holes 12 arranged in a linear array on its surface. One side of the positioning holes 12 has protrusions 14 arranged on both sides. The positioning holes 12 and the double-sided protrusions 14 together form a one-way anti-slip mechanism. When the flexible strip 13 is wound, the corresponding components on the rotating frame 7 (such as the protrusions 14) can interact with the protrusions 14 and the positioning holes 12 to produce a ratchet-like effect, allowing the flexible strip 13 to be wound smoothly in the tightening direction, while effectively resisting the tendency to loosen in the opposite direction. This achieves self-locking and precise positioning during the tightening process, preventing docking failure caused by loosening before final locking.

[0027] When the flexible strip 13 is opened, the positioning hole 12 is further away from the rotation center of the flexible strip 13 than the positioning hole 12. This arrangement ensures that when the flexible strip 13 is pulled out from the mounting groove 11 and is ready to be wound, the protrusion 14 and the positioning hole 12 on it can engage with the drive component on the rotating frame 7 in the correct direction. This optimizes the engagement conditions, reduces the impact and wear during the initial engagement, and ensures that the anti-slip mechanism can work reliably from the beginning of the tensioning operation, thereby improving the smoothness and reliability of the entire tensioning process.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A biaxially oriented PVC pipe for power applications, comprising a pipe body (1), a rotating frame (7), a limiting disc (5), and a flexible strip (13), characterized in that: The pipe body (1) has joints (2) on both sides. One side of the joint (2) has a mounting groove (6) arranged in a ring array. A rotating frame (7) is rotatably installed inside the mounting groove (6). The outer wall of the joint (2) has a groove (3). A hexagonal prism (9) is rotatably installed inside the groove (3). The hexagonal prism (9) is rotatably connected to the mounting frame. A limiting plate (5) is provided inside the groove (3). The other side of the joint (2) has a mounting groove (11). A flexible strip (13) is provided inside the mounting groove (11).

2. The biaxially oriented PVC pipe for power applications according to claim 1, characterized in that: The inner wall of the groove (3) is provided with a limiting groove (8) arranged in a ring array, and the outer wall of the limiting disk (5) is provided with a one-line limiting key, which is inserted into the limiting groove (8).

3. The biaxially oriented PVC pipe for power applications according to claim 2, characterized in that: The limiting plate (5) is inserted into the surface of the hexagonal prism (9), and the upper end of the hexagonal prism (9) is provided with a limiting block (4).

4. A biaxially oriented PVC pipe for power applications according to claim 1, characterized in that: The rotating frame (7) has a through hole (10) in the middle.

5. A biaxially oriented PVC pipe for power applications according to claim 1, characterized in that: The flexible strip (13) has positioning holes (12) arranged in a linear array on its surface, and the positioning holes (12) have protrusions (14) on both sides on one side.

6. A biaxially oriented PVC pipe for power applications according to claim 5, characterized in that: When the flexible strip (13) is opened, the positioning hole (12) is farther away from the rotation center of the flexible strip (13) than the positioning hole (12).

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