Outdoor freeze-proof plastic pipe

Abstract

This utility model discloses an outdoor antifreeze plastic pipe, relating to the field of plastic pipes. It includes a plastic pipe body with an insulated pipe sleeved on the outer side. Two insulated pipes are provided and hinged together. This utility model, employing the above structure, significantly improves the adaptability of the plastic pipe in different installation scenarios. Whether there are slight differences in pipe length or special requirements for the protection range in the construction space, adjustments can be made quickly via the adjustment components, avoiding installation difficulties caused by size mismatches, reducing resource waste and cost investment. There is no need to customize insulated pipes for different length requirements; the same structure can meet various usage needs through adjustment, reducing material idleness and procurement costs, and enhancing the convenience of later maintenance. When the plastic pipe is partially damaged and needs repair, the protective length can be shortened by adjustment without disassembling the entire insulation structure, simplifying the maintenance process.

Description

Technical Field

[0001] This utility model belongs to the field of plastic pipes, and specifically relates to an outdoor antifreeze plastic pipe. Background Technology

[0002] Plastic pipes are a very important component of hardware and building materials. They play a crucial role in urban construction and have a wide range of applications, especially in drainage systems. However, existing outdoor plastic pipes are prone to freezing in winter due to low temperatures. This can lead to cracking and damage, resulting in costly and time-consuming repairs and replacements. Furthermore, freezing can affect the smooth flow of water, making them less safe and convenient to use.

[0003] According to Chinese Patent No. CN222351813U, an outdoor antifreeze plastic pipe is disclosed, relating to the field of plastic pipe technology. This utility model includes a plastic pipe body, with several protective and heat-insulating devices on the outer surface of the plastic pipe body. Each protective and heat-insulating device includes two protective blocks and two screw-hole blocks. The outer surface of each protective block is equipped with a splicing device. Several threaded rods are symmetrically fixedly connected to the outer surface of the plastic pipe body. By setting up the protective and heat-insulating devices, the outer surface of the plastic pipe body can be completely wrapped with two protective blocks, aluminum foil, and insulation cotton, increasing the temperature of the outer surface of the plastic pipe body. This prevents the outer surface of the plastic pipe body from freezing, cracking, or being damaged when the external temperature drops, thus reducing the frequency of maintenance and replacement, saving costs and replacement time. Simultaneously, the insulation cotton and aluminum foil can lock in the temperature of the outer surface of the plastic pipe body, ensuring smooth water flow inside and facilitating use. First, when facing scenarios requiring plastic pipes of varying lengths for protection, fixed-length outer tubes are difficult to fit precisely. Either the tube is too short, leaving part of it exposed and vulnerable to damage from friction, impact, or environmental corrosion; or it is too long, requiring additional cutting, which increases the steps and time costs for construction workers. Improper cutting can also cause cracks or deformation of the outer tube, further reducing its protective effect. Second, this lack of adjustability also leads to resource waste. When construction needs change slightly, a previously compatible outer tube may become unusable due to length mismatch and must be left idle or discarded, failing to meet the requirements of cost-saving and environmental protection. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide an outdoor antifreeze plastic pipe to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: An outdoor antifreeze plastic pipe includes a plastic pipe body, an insulated pipe sleeved on the outside of the plastic pipe body, two insulated pipes hinged together, an adjustment component on the outer surface of the insulated pipe, positioning components at both ends of the insulated pipe, and a fixing component on one side of the insulated pipe. The adjustment component includes adjustment seats on both sides of the surface of the insulated pipe, each adjustment seat having an adjustment screw hole on its outer surface, an adjustment screw threaded into the interior of each adjustment screw hole, a limit plate fixedly connected to both ends of each adjustment screw, and an adjustment handle fixedly connected to the outer surface of the adjustment screw on the opposite side of the adjustment seat.

[0006] As a preferred technical solution, the insulated pipe includes a first side pipe and a second side pipe, and insertion slots are provided on opposite sides of the first side pipe and the second side pipe, and a central insert plate is inserted into the inside of each insertion slot.

[0007] As a preferred technical solution, the first side tube, the second side tube, and the central insert plate all include an outer shell, and an installation cavity is opened inside the outer shell, and thermal insulation cotton is fixedly connected inside the installation cavity.

[0008] As a preferred technical solution, the fixing component includes a second fixing seat disposed on the outside of the first side tube, a rotating seat rotatably connected inside the second fixing seat, a fixing screw rotatably connected to the outside of the rotating seat, a threaded cylinder threadedly connected to the outer surface of the fixing screw, and an operating handle fixedly connected to the outside of the threaded cylinder.

[0009] As a preferred technical solution, the outer side of the first side tube is fixedly connected to the first fixing seat, the upper end of the first fixing seat is provided with a snap-fit ​​groove, the inside of the snap-fit ​​groove is provided with an inlet hole, the fixing screw is inserted into the inlet hole, and the threaded cylinder is snapped into the snap-fit ​​groove.

[0010] As a preferred technical solution, both ends of the insulated pipe are fixedly connected to positioning edges. The outer surface of the positioning edge is provided with positioning screw holes. The internal threads of the positioning screw holes are connected to positioning screws. One end of the positioning screw is fixedly connected to a positioning disc, and the other end of the positioning screw is fixedly connected to a positioning arc plate.

[0011] As a preferred technical solution, the positioning arc plate and the positioning edge are slidably inserted into each other, and limit holes are opened on both sides of the positioning edge. Limit rods are fixedly connected to the upper end of the positioning arc plate, and the limit rods are inserted into the limit holes.

[0012] In summary, the present invention has the following main advantages: First, by rotating the adjustment handle, the adjusting screw is driven to rotate. Since the adjusting screw and the adjusting screw hole on the adjusting seat are threadedly connected, the rotation of the screw is converted into the movement of the adjusting seat along the screw axis, which in turn drives the insulated pipe to produce adaptive displacement. Ultimately, this achieves flexible adjustment of the effective protection length of the plastic pipe body, greatly improving the adaptability of the plastic pipe in different installation scenarios. Whether there are slight differences in pipe length or special requirements for the protection range in the construction space, it can be quickly adjusted through the adjustment component, avoiding installation difficulties caused by size mismatch, reducing resource waste and cost investment. There is no need to customize the insulated pipe separately for different length requirements. The same structure can meet multiple usage needs through adjustment, reducing material idleness and procurement costs, and enhancing the convenience of later maintenance. When the plastic pipe is partially damaged and needs repair, the protection length can be shortened by adjustment without disassembling the entire insulation structure, simplifying the maintenance process and saving maintenance time and labor costs. Secondly, the first side pipe, the second side pipe, and the central insert plate all adopt a double-layer structure of an outer shell and an inner insulation cotton. The outer shell provides stable support and protection for the insulation cotton, preventing it from being directly exposed and damaged. The inner insulation cotton fills the installation cavity of the outer shell, forming a core insulation layer, laying the foundation for the subsequent insulation function. In the double-layer structure, the insulation cotton fixedly connected in the installation cavity can effectively block the exchange of external temperature with the internal medium temperature of the plastic pipe, reducing the loss of heat or cold. Especially in low-temperature or high-temperature environments, it can maintain the stable temperature of the medium inside the plastic pipe, ensuring pipeline transportation efficiency and providing a more comprehensive insulation range. Through the splicing of the first side pipe, the second side pipe, and the central insert plate, a seamless tubular insulation structure can be formed, avoiding insulation dead corners caused by splicing gaps, achieving 360° insulation of the plastic pipe body without any omissions, and further improving the reliability of insulation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a utility model Figure 2 A magnified structural diagram of part A; Figure 4 This is a schematic diagram of the structure of the central insert plate of this utility model.

[0014] Reference numerals: 1. Plastic pipe body; 2. Insulated pipe; 21. First side pipe; 22. Second side pipe; 23. Insertion groove; 24. Central insert plate; 241. Outer shell; 242. Mounting cavity; 243. Insulation cotton; 3. Fixing component; 31. First fixing seat; 32. Snap-fit ​​groove; 33. Entry hole; 34. Second fixing seat; 35. Rotating seat; 36. Fixing screw; 37. Threaded cylinder; 38. Operating handle; 4. Adjusting component; 41. Adjusting seat; 42. Adjusting screw hole; 43. Adjusting screw; 44. Limiting plate; 45. Adjusting handle; 5. Positioning component; 51. Positioning edge; 52. Positioning screw hole; 53. Positioning screw; 54. Positioning plate; 55. Positioning arc plate; 6. Limiting insertion hole; 7. Limiting insertion rod. Detailed Implementation

[0015] Example refer to Figures 1 to 4 This embodiment of an outdoor antifreeze plastic pipe includes a plastic pipe body 1, an insulated pipe 2 sleeved on the outside of the plastic pipe body 1, two insulated pipes 2 are provided and hinged to each other, an adjustment component 4 is provided on the outer surface of the insulated pipe 2, a positioning component 5 is provided at both ends of the insulated pipe 2, a fixing component 3 is provided on one side of the insulated pipe 2, the adjustment component 4 includes an adjustment seat 41 provided on both sides of the surface of the insulated pipe 2, an adjustment screw hole 42 is provided on the outer surface of the adjustment seat 41, an adjustment screw 43 is threadedly connected inside the adjustment screw hole 42, a limit plate 44 is fixedly connected to both ends of the adjustment screw 43, and an adjustment handle 45 is fixedly connected to the outer surface of the adjustment screw 43 on the opposite side of the adjustment seat 41.

[0016] refer to Figure 1 , Figure 2 and Figure 4 The insulated pipe 2 includes a first side pipe 21 and a second side pipe 22. Each side of the first side pipe 21 and the second side pipe 22 has an insertion groove 23. A central insertion plate 24 is inserted into each insertion groove 23. The first side pipe 21, the second side pipe 22, and the central insertion plate 24 all include an outer shell 241. An installation cavity 242 is formed inside the outer shell 241, and insulation cotton 243 is fixedly connected inside the installation cavity 242. The first side pipe 21, the second side pipe 22, and the central insertion plate 24 all adopt a double-layer structure of outer shell 241 and inner insulation cotton 243. The outer shell 241 provides stable support and protection for the insulation cotton 243, preventing the insulation cotton 243 from being directly exposed and damaged. The inner insulation cotton 243 is filled in the mounting cavity 242 of the outer shell 241 to form a core insulation layer, laying the foundation for the subsequent insulation function. In the double-layer structure, the insulation cotton 243 fixedly connected in the mounting cavity 242 can effectively block the exchange of external temperature and internal medium temperature of the plastic pipe body 1, reducing the loss of heat or cold. Especially in low temperature or high temperature environments, it can maintain the stable temperature of the medium inside the plastic pipe and ensure the efficiency of pipeline transportation.

[0017] refer to Figure 1 and Figure 2 The fixing assembly 3 includes a second fixing seat 34 disposed on the outside of the first side tube 21. A rotating seat 35 is rotatably connected inside the second fixing seat 34, and a fixing screw 36 is rotatably connected to the outside of the rotating seat 35. A threaded cylinder 37 is threadedly connected to the outer surface of the fixing screw 36, and an operating handle 38 is fixedly connected to the outside of the threaded cylinder 37. The first fixing seat 31 is fixedly connected to the outside of the first side tube 21. A snap-fit ​​groove 32 is provided at the upper end of the first fixing seat 31, and an entry hole 33 is provided inside the snap-fit ​​groove 32. The fixing screw 36 is inserted into the entry hole 33, and the threaded cylinder 37 is snapped into the snap-fit ​​groove 32. By operating the handle 38, the fixing screw 36 is aligned with the entry hole 33 on the first fixing seat 31 outside the first side tube 21, and then the fixing screw 36 is inserted into the entry hole 33. At this point, the fixing screw 36 is initially connected to the first fixing seat 31. Then, since the outer surface of the fixing screw 36 is threaded with a threaded cylinder 37, and the outer side of the threaded cylinder 37 is also connected with an operating handle 38, by rotating the operating handle 38 on the outer side of the threaded cylinder 37, the threaded cylinder 37 can be moved along the thread direction of the fixing screw 36 until the threaded cylinder 37 is completely inserted into the snap-fit ​​groove 32 at the upper end of the first fixing seat 31. Finally, the threaded cylinder 37 is further fine-tuned so that the snap-fit ​​groove 32 and the threaded cylinder 37 fit tightly together. With the help of the self-locking of the threaded connection and the limiting effect of the snap-fit ​​structure, the first side tube 21 and the second side tube 22 are stably fixed, preventing them from separating or shifting due to external force or pipe vibration during use, thereby ensuring the protective effect of the insulation pipe 2 on the plastic pipe body 1.

[0018] refer to Figure 1 and Figure 3Both ends of the insulated pipe 2 are fixedly connected to positioning edges 51. Positioning screw holes 52 are formed on the outer surface of the positioning edges 51. Positioning screws 53 are threaded into the internal parts of the positioning screw holes 52. A positioning plate 54 is fixedly connected to one end of the positioning screw 53, and a positioning arc plate 55 is fixedly connected to the other end. First, align the positioning screw 53 with the positioning screw hole 52 of the positioning edge 51, and rotate the positioning screw 53 clockwise. Utilizing the engagement of the threaded connection, the positioning screw 53 moves axially towards the plastic pipe body 1 along the screw hole. As the positioning screw 53 advances, the positioning arc plate 55 fixedly connected to its other end gradually approaches the outer wall of the plastic pipe body 1. The positioning plate 54 at one end of the positioning screw 53 remains outside the positioning edge 51, which facilitates the operator to apply force to rotate it and prevents the positioning screw 53 from over-extending and falling off. The positioning screw 53 is continuously rotated until the positioning arc plate 55 is completely attached to the outer wall of the plastic pipe body 1. At this time, through the tightening force of the positioning screw 53, a stable frictional force is formed between the positioning arc plate 55 and the plastic pipe body 1. Combined with the fixed connection between the positioning edge 51 and the insulation pipe 2, the insulation pipe 2 is finally firmly locked in the preset position of the plastic pipe body 1, which effectively avoids the displacement of the insulation pipe 2 caused by pipe vibration, external collisions and other factors, and ensures the continuity and stability of the insulation protection.

[0019] refer to Figure 3 The positioning arc plate 55 and the positioning edge 51 are slidably inserted into each other. Limiting holes 6 are provided on both sides of the positioning edge 51. Limiting rods 7 are fixedly connected to the upper end of the positioning arc plate 55. The limiting rods 7 and the limiting holes 6 are inserted into each other. The limiting rods 7 and the limiting holes 6 can limit the positioning arc plate 55 during use.

[0020] Operating principle and advantages: By connecting the insulated pipe 2 to the plastic pipe body 1, and then rotating the operating handle 38 on the outside of the threaded cylinder 37, the threaded cylinder 37 can be moved along the thread direction of the fixing screw 36 until the threaded cylinder 37 is fully engaged in the locking groove 32 at the upper end of the first fixing seat 31. Finally, the threaded cylinder 37 is further fine-tuned to ensure that the locking groove 32 and the threaded cylinder 37 fit tightly together. With the help of the self-locking of the threaded connection and the limiting effect of the locking structure, the first side pipe 21 and the second side pipe 22 are stably fixed. When length adjustment is required, rotating the adjusting handle 45 drives the adjusting screw 43 to rotate. Since the adjusting screw 43 and the adjusting screw hole 42 on the adjusting seat 41 are threadedly connected, the rotation of the screw is converted into the movement of the adjusting seat 41 along the screw axis, which in turn drives the insulated pipe 2 to produce adaptive displacement, ultimately achieving flexible adjustment of the effective protective length of the plastic pipe body 1, greatly improving the adaptability of the plastic pipe in different installation scenarios. Then, through the tightening force of the positioning screw 53, the positioning arc plate 55 and the plastic pipe body 1 are... A stable frictional force is formed between them, and with the fixed connection between the positioning edge 51 and the insulation pipe 2, the insulation pipe 2 is firmly locked in the preset position of the plastic pipe body 1. This effectively avoids displacement of the insulation pipe 2 caused by pipe vibration, external collisions, and other factors, ensuring the continuity and stability of the insulation protection. Finally, the first side pipe 21, the second side pipe 22, and the central insert plate 24 all adopt a double-layer structure of outer shell 241 and inner insulation cotton 243. The outer shell 241 provides stable support and protection for the insulation cotton 243. To prevent the insulation cotton 243 from being directly exposed and damaged, the internal insulation cotton 243 is filled in the mounting cavity 242 of the outer shell 241 to form a core insulation layer, laying the foundation for the subsequent insulation function. In the double-layer structure, the insulation cotton 243 fixedly connected in the mounting cavity 242 can effectively block the exchange of external temperature with the internal medium temperature of the plastic pipe body 1, reducing the loss of heat or cold. Especially in low temperature or high temperature environments, it can maintain the stable temperature of the medium inside the plastic pipe, ensure the pipeline transportation efficiency, and provide a more comprehensive insulation range.

Claims

1. An outdoor antifreeze plastic pipe, characterized in that: The device includes a plastic pipe body (1), an insulated pipe (2) is sleeved on the outside of the plastic pipe body (1), two insulated pipes (2) are provided and are hinged to each other, an adjustment component (4) is provided on the outer surface of the insulated pipe (2), a positioning component (5) is provided at both ends of the insulated pipe (2), a fixing component (3) is provided on one side of the insulated pipe (2), the adjustment component (4) includes an adjustment seat (41) provided on both sides of the surface of the insulated pipe (2), an adjustment screw hole (42) is provided on the outer surface of the adjustment seat (41), an adjustment screw (43) is threaded inside the adjustment screw hole (42), a limit plate (44) is fixedly connected at both ends of the adjustment screw (43), and an adjustment handle (45) is fixedly connected on the outer surface of the adjustment screw (43) on the opposite side of the adjustment seat (41).

2. The outdoor antifreeze plastic pipe according to claim 1, characterized in that: The insulated pipe (2) includes a first side pipe (21) and a second side pipe (22). The opposite sides of the first side pipe (21) and the second side pipe (22) are provided with insertion slots (23), and a central insert plate (24) is inserted into the inside of each insertion slot (23).

3. The outdoor antifreeze plastic pipe according to claim 2, characterized in that: The first side tube (21), the second side tube (22) and the central insert plate (24) all include an outer shell (241), and an installation cavity (242) is provided inside the outer shell (241). Insulation cotton (243) is fixedly connected inside the installation cavity (242).

4. The outdoor antifreeze plastic pipe according to claim 3, characterized in that: The fixing component (3) includes a second fixing seat (34) disposed on the outside of the first side tube (21). The interior of the second fixing seat (34) is rotatably connected to a rotating seat (35). The exterior of the rotating seat (35) is rotatably connected to a fixing screw (36). The outer surface of the fixing screw (36) is threadedly connected to a threaded cylinder (37). The exterior of the threaded cylinder (37) is fixedly connected to an operating handle (38).

5. An outdoor antifreeze plastic pipe according to claim 4, characterized in that: The first side tube (21) is fixedly connected to the first fixed seat (31) on the outside. The upper end of the first fixed seat (31) is provided with a snap-fit ​​groove (32). The snap-fit ​​groove (32) is provided with an inlet hole (33). The fixed screw (36) is inserted into the inlet hole (33). The threaded cylinder (37) is snapped into the snap-fit ​​groove (32).

6. An outdoor antifreeze plastic pipe according to claim 5, characterized in that: Both ends of the insulated pipe (2) are fixedly connected to positioning edges (51). The outer surface of the positioning edge (51) is provided with positioning screw holes (52). The positioning screw holes (52) are internally threaded with positioning screws (53). One end of the positioning screw (53) is fixedly connected to a positioning plate (54), and the other end of the positioning screw (53) is fixedly connected to a positioning arc plate (55).

7. An outdoor antifreeze plastic pipe according to claim 6, characterized in that: The positioning arc plate (55) and the positioning edge (51) are slidably inserted into each other. Limiting holes (6) are opened on both sides of the positioning edge (51). Limiting rods (7) are fixedly connected to the upper end of the positioning arc plate (55). The limiting rods (7) and the limiting holes (6) are inserted into each other.

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